1b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0 2a4ce40a9SAlex Elder 33d14c5d2SYehuda Sadeh #include <linux/ceph/ceph_debug.h> 43d14c5d2SYehuda Sadeh 53d14c5d2SYehuda Sadeh #include <linux/module.h> 63d14c5d2SYehuda Sadeh #include <linux/err.h> 73d14c5d2SYehuda Sadeh #include <linux/highmem.h> 83d14c5d2SYehuda Sadeh #include <linux/mm.h> 93d14c5d2SYehuda Sadeh #include <linux/pagemap.h> 103d14c5d2SYehuda Sadeh #include <linux/slab.h> 113d14c5d2SYehuda Sadeh #include <linux/uaccess.h> 123d14c5d2SYehuda Sadeh #ifdef CONFIG_BLOCK 133d14c5d2SYehuda Sadeh #include <linux/bio.h> 143d14c5d2SYehuda Sadeh #endif 153d14c5d2SYehuda Sadeh 168cb441c0SIlya Dryomov #include <linux/ceph/ceph_features.h> 173d14c5d2SYehuda Sadeh #include <linux/ceph/libceph.h> 183d14c5d2SYehuda Sadeh #include <linux/ceph/osd_client.h> 193d14c5d2SYehuda Sadeh #include <linux/ceph/messenger.h> 203d14c5d2SYehuda Sadeh #include <linux/ceph/decode.h> 213d14c5d2SYehuda Sadeh #include <linux/ceph/auth.h> 223d14c5d2SYehuda Sadeh #include <linux/ceph/pagelist.h> 2308c1ac50SIlya Dryomov #include <linux/ceph/striper.h> 243d14c5d2SYehuda Sadeh 253d14c5d2SYehuda Sadeh #define OSD_OPREPLY_FRONT_LEN 512 263d14c5d2SYehuda Sadeh 275522ae0bSAlex Elder static struct kmem_cache *ceph_osd_request_cache; 285522ae0bSAlex Elder 293d14c5d2SYehuda Sadeh static const struct ceph_connection_operations osd_con_ops; 303d14c5d2SYehuda Sadeh 313d14c5d2SYehuda Sadeh /* 323d14c5d2SYehuda Sadeh * Implement client access to distributed object storage cluster. 333d14c5d2SYehuda Sadeh * 343d14c5d2SYehuda Sadeh * All data objects are stored within a cluster/cloud of OSDs, or 353d14c5d2SYehuda Sadeh * "object storage devices." (Note that Ceph OSDs have _nothing_ to 363d14c5d2SYehuda Sadeh * do with the T10 OSD extensions to SCSI.) Ceph OSDs are simply 373d14c5d2SYehuda Sadeh * remote daemons serving up and coordinating consistent and safe 383d14c5d2SYehuda Sadeh * access to storage. 393d14c5d2SYehuda Sadeh * 403d14c5d2SYehuda Sadeh * Cluster membership and the mapping of data objects onto storage devices 413d14c5d2SYehuda Sadeh * are described by the osd map. 423d14c5d2SYehuda Sadeh * 433d14c5d2SYehuda Sadeh * We keep track of pending OSD requests (read, write), resubmit 443d14c5d2SYehuda Sadeh * requests to different OSDs when the cluster topology/data layout 453d14c5d2SYehuda Sadeh * change, or retry the affected requests when the communications 463d14c5d2SYehuda Sadeh * channel with an OSD is reset. 473d14c5d2SYehuda Sadeh */ 483d14c5d2SYehuda Sadeh 495aea3dcdSIlya Dryomov static void link_request(struct ceph_osd *osd, struct ceph_osd_request *req); 505aea3dcdSIlya Dryomov static void unlink_request(struct ceph_osd *osd, struct ceph_osd_request *req); 51922dab61SIlya Dryomov static void link_linger(struct ceph_osd *osd, 52922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq); 53922dab61SIlya Dryomov static void unlink_linger(struct ceph_osd *osd, 54922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq); 55a02a946dSIlya Dryomov static void clear_backoffs(struct ceph_osd *osd); 565aea3dcdSIlya Dryomov 575aea3dcdSIlya Dryomov #if 1 585aea3dcdSIlya Dryomov static inline bool rwsem_is_wrlocked(struct rw_semaphore *sem) 595aea3dcdSIlya Dryomov { 605aea3dcdSIlya Dryomov bool wrlocked = true; 615aea3dcdSIlya Dryomov 625aea3dcdSIlya Dryomov if (unlikely(down_read_trylock(sem))) { 635aea3dcdSIlya Dryomov wrlocked = false; 645aea3dcdSIlya Dryomov up_read(sem); 655aea3dcdSIlya Dryomov } 665aea3dcdSIlya Dryomov 675aea3dcdSIlya Dryomov return wrlocked; 685aea3dcdSIlya Dryomov } 695aea3dcdSIlya Dryomov static inline void verify_osdc_locked(struct ceph_osd_client *osdc) 705aea3dcdSIlya Dryomov { 715aea3dcdSIlya Dryomov WARN_ON(!rwsem_is_locked(&osdc->lock)); 725aea3dcdSIlya Dryomov } 735aea3dcdSIlya Dryomov static inline void verify_osdc_wrlocked(struct ceph_osd_client *osdc) 745aea3dcdSIlya Dryomov { 755aea3dcdSIlya Dryomov WARN_ON(!rwsem_is_wrlocked(&osdc->lock)); 765aea3dcdSIlya Dryomov } 775aea3dcdSIlya Dryomov static inline void verify_osd_locked(struct ceph_osd *osd) 785aea3dcdSIlya Dryomov { 795aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 805aea3dcdSIlya Dryomov 815aea3dcdSIlya Dryomov WARN_ON(!(mutex_is_locked(&osd->lock) && 825aea3dcdSIlya Dryomov rwsem_is_locked(&osdc->lock)) && 835aea3dcdSIlya Dryomov !rwsem_is_wrlocked(&osdc->lock)); 845aea3dcdSIlya Dryomov } 85922dab61SIlya Dryomov static inline void verify_lreq_locked(struct ceph_osd_linger_request *lreq) 86922dab61SIlya Dryomov { 87922dab61SIlya Dryomov WARN_ON(!mutex_is_locked(&lreq->lock)); 88922dab61SIlya Dryomov } 895aea3dcdSIlya Dryomov #else 905aea3dcdSIlya Dryomov static inline void verify_osdc_locked(struct ceph_osd_client *osdc) { } 915aea3dcdSIlya Dryomov static inline void verify_osdc_wrlocked(struct ceph_osd_client *osdc) { } 925aea3dcdSIlya Dryomov static inline void verify_osd_locked(struct ceph_osd *osd) { } 93922dab61SIlya Dryomov static inline void verify_lreq_locked(struct ceph_osd_linger_request *lreq) { } 945aea3dcdSIlya Dryomov #endif 955aea3dcdSIlya Dryomov 963d14c5d2SYehuda Sadeh /* 973d14c5d2SYehuda Sadeh * calculate the mapping of a file extent onto an object, and fill out the 983d14c5d2SYehuda Sadeh * request accordingly. shorten extent as necessary if it crosses an 993d14c5d2SYehuda Sadeh * object boundary. 1003d14c5d2SYehuda Sadeh * 1013d14c5d2SYehuda Sadeh * fill osd op in request message. 1023d14c5d2SYehuda Sadeh */ 103dbe0fc41SAlex Elder static int calc_layout(struct ceph_file_layout *layout, u64 off, u64 *plen, 104a19dadfbSAlex Elder u64 *objnum, u64 *objoff, u64 *objlen) 1053d14c5d2SYehuda Sadeh { 10660e56f13SAlex Elder u64 orig_len = *plen; 107dccbf080SIlya Dryomov u32 xlen; 1083d14c5d2SYehuda Sadeh 10960e56f13SAlex Elder /* object extent? */ 110dccbf080SIlya Dryomov ceph_calc_file_object_mapping(layout, off, orig_len, objnum, 111dccbf080SIlya Dryomov objoff, &xlen); 112dccbf080SIlya Dryomov *objlen = xlen; 11375d1c941SAlex Elder if (*objlen < orig_len) { 11475d1c941SAlex Elder *plen = *objlen; 11560e56f13SAlex Elder dout(" skipping last %llu, final file extent %llu~%llu\n", 11660e56f13SAlex Elder orig_len - *plen, off, *plen); 11760e56f13SAlex Elder } 11860e56f13SAlex Elder 11975d1c941SAlex Elder dout("calc_layout objnum=%llx %llu~%llu\n", *objnum, *objoff, *objlen); 1203ff5f385SAlex Elder return 0; 1213d14c5d2SYehuda Sadeh } 1223d14c5d2SYehuda Sadeh 123c54d47bfSAlex Elder static void ceph_osd_data_init(struct ceph_osd_data *osd_data) 124c54d47bfSAlex Elder { 125c54d47bfSAlex Elder memset(osd_data, 0, sizeof (*osd_data)); 126c54d47bfSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_NONE; 127c54d47bfSAlex Elder } 128c54d47bfSAlex Elder 12989486833SIlya Dryomov /* 13089486833SIlya Dryomov * Consumes @pages if @own_pages is true. 13189486833SIlya Dryomov */ 132a4ce40a9SAlex Elder static void ceph_osd_data_pages_init(struct ceph_osd_data *osd_data, 13343bfe5deSAlex Elder struct page **pages, u64 length, u32 alignment, 13443bfe5deSAlex Elder bool pages_from_pool, bool own_pages) 13543bfe5deSAlex Elder { 13643bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_PAGES; 13743bfe5deSAlex Elder osd_data->pages = pages; 13843bfe5deSAlex Elder osd_data->length = length; 13943bfe5deSAlex Elder osd_data->alignment = alignment; 14043bfe5deSAlex Elder osd_data->pages_from_pool = pages_from_pool; 14143bfe5deSAlex Elder osd_data->own_pages = own_pages; 14243bfe5deSAlex Elder } 14343bfe5deSAlex Elder 14489486833SIlya Dryomov /* 14589486833SIlya Dryomov * Consumes a ref on @pagelist. 14689486833SIlya Dryomov */ 147a4ce40a9SAlex Elder static void ceph_osd_data_pagelist_init(struct ceph_osd_data *osd_data, 14843bfe5deSAlex Elder struct ceph_pagelist *pagelist) 14943bfe5deSAlex Elder { 15043bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_PAGELIST; 15143bfe5deSAlex Elder osd_data->pagelist = pagelist; 15243bfe5deSAlex Elder } 15343bfe5deSAlex Elder 15443bfe5deSAlex Elder #ifdef CONFIG_BLOCK 155a4ce40a9SAlex Elder static void ceph_osd_data_bio_init(struct ceph_osd_data *osd_data, 1565359a17dSIlya Dryomov struct ceph_bio_iter *bio_pos, 1575359a17dSIlya Dryomov u32 bio_length) 15843bfe5deSAlex Elder { 15943bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_BIO; 1605359a17dSIlya Dryomov osd_data->bio_pos = *bio_pos; 16143bfe5deSAlex Elder osd_data->bio_length = bio_length; 16243bfe5deSAlex Elder } 16343bfe5deSAlex Elder #endif /* CONFIG_BLOCK */ 16443bfe5deSAlex Elder 165b9e281c2SIlya Dryomov static void ceph_osd_data_bvecs_init(struct ceph_osd_data *osd_data, 1660010f705SIlya Dryomov struct ceph_bvec_iter *bvec_pos, 1670010f705SIlya Dryomov u32 num_bvecs) 168b9e281c2SIlya Dryomov { 169b9e281c2SIlya Dryomov osd_data->type = CEPH_OSD_DATA_TYPE_BVECS; 170b9e281c2SIlya Dryomov osd_data->bvec_pos = *bvec_pos; 1710010f705SIlya Dryomov osd_data->num_bvecs = num_bvecs; 172b9e281c2SIlya Dryomov } 173b9e281c2SIlya Dryomov 174dee0c5f8SJeff Layton static void ceph_osd_iter_init(struct ceph_osd_data *osd_data, 175dee0c5f8SJeff Layton struct iov_iter *iter) 176dee0c5f8SJeff Layton { 177dee0c5f8SJeff Layton osd_data->type = CEPH_OSD_DATA_TYPE_ITER; 178dee0c5f8SJeff Layton osd_data->iter = *iter; 179dee0c5f8SJeff Layton } 180dee0c5f8SJeff Layton 18149719778SAlex Elder static struct ceph_osd_data * 18249719778SAlex Elder osd_req_op_raw_data_in(struct ceph_osd_request *osd_req, unsigned int which) 18349719778SAlex Elder { 18449719778SAlex Elder BUG_ON(which >= osd_req->r_num_ops); 18549719778SAlex Elder 18649719778SAlex Elder return &osd_req->r_ops[which].raw_data_in; 18749719778SAlex Elder } 18849719778SAlex Elder 189a4ce40a9SAlex Elder struct ceph_osd_data * 190a4ce40a9SAlex Elder osd_req_op_extent_osd_data(struct ceph_osd_request *osd_req, 191406e2c9fSAlex Elder unsigned int which) 192a4ce40a9SAlex Elder { 193863c7eb5SAlex Elder return osd_req_op_data(osd_req, which, extent, osd_data); 194a4ce40a9SAlex Elder } 195a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data); 196a4ce40a9SAlex Elder 19749719778SAlex Elder void osd_req_op_raw_data_in_pages(struct ceph_osd_request *osd_req, 19849719778SAlex Elder unsigned int which, struct page **pages, 19949719778SAlex Elder u64 length, u32 alignment, 20049719778SAlex Elder bool pages_from_pool, bool own_pages) 20149719778SAlex Elder { 20249719778SAlex Elder struct ceph_osd_data *osd_data; 20349719778SAlex Elder 20449719778SAlex Elder osd_data = osd_req_op_raw_data_in(osd_req, which); 20549719778SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 20649719778SAlex Elder pages_from_pool, own_pages); 20749719778SAlex Elder } 20849719778SAlex Elder EXPORT_SYMBOL(osd_req_op_raw_data_in_pages); 20949719778SAlex Elder 210a4ce40a9SAlex Elder void osd_req_op_extent_osd_data_pages(struct ceph_osd_request *osd_req, 211406e2c9fSAlex Elder unsigned int which, struct page **pages, 212406e2c9fSAlex Elder u64 length, u32 alignment, 213a4ce40a9SAlex Elder bool pages_from_pool, bool own_pages) 214a4ce40a9SAlex Elder { 215a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 216a4ce40a9SAlex Elder 217863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 218a4ce40a9SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 219a4ce40a9SAlex Elder pages_from_pool, own_pages); 220a4ce40a9SAlex Elder } 221a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data_pages); 222a4ce40a9SAlex Elder 223a4ce40a9SAlex Elder void osd_req_op_extent_osd_data_pagelist(struct ceph_osd_request *osd_req, 224406e2c9fSAlex Elder unsigned int which, struct ceph_pagelist *pagelist) 225a4ce40a9SAlex Elder { 226a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 227a4ce40a9SAlex Elder 228863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 229a4ce40a9SAlex Elder ceph_osd_data_pagelist_init(osd_data, pagelist); 230a4ce40a9SAlex Elder } 231a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data_pagelist); 232a4ce40a9SAlex Elder 233a4ce40a9SAlex Elder #ifdef CONFIG_BLOCK 234a4ce40a9SAlex Elder void osd_req_op_extent_osd_data_bio(struct ceph_osd_request *osd_req, 2355359a17dSIlya Dryomov unsigned int which, 2365359a17dSIlya Dryomov struct ceph_bio_iter *bio_pos, 2375359a17dSIlya Dryomov u32 bio_length) 238a4ce40a9SAlex Elder { 239a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 240863c7eb5SAlex Elder 241863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 2425359a17dSIlya Dryomov ceph_osd_data_bio_init(osd_data, bio_pos, bio_length); 243a4ce40a9SAlex Elder } 244a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data_bio); 245a4ce40a9SAlex Elder #endif /* CONFIG_BLOCK */ 246a4ce40a9SAlex Elder 2470010f705SIlya Dryomov void osd_req_op_extent_osd_data_bvecs(struct ceph_osd_request *osd_req, 2480010f705SIlya Dryomov unsigned int which, 2490010f705SIlya Dryomov struct bio_vec *bvecs, u32 num_bvecs, 2500010f705SIlya Dryomov u32 bytes) 2510010f705SIlya Dryomov { 2520010f705SIlya Dryomov struct ceph_osd_data *osd_data; 2530010f705SIlya Dryomov struct ceph_bvec_iter it = { 2540010f705SIlya Dryomov .bvecs = bvecs, 2550010f705SIlya Dryomov .iter = { .bi_size = bytes }, 2560010f705SIlya Dryomov }; 2570010f705SIlya Dryomov 2580010f705SIlya Dryomov osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 2590010f705SIlya Dryomov ceph_osd_data_bvecs_init(osd_data, &it, num_bvecs); 2600010f705SIlya Dryomov } 2610010f705SIlya Dryomov EXPORT_SYMBOL(osd_req_op_extent_osd_data_bvecs); 2620010f705SIlya Dryomov 263b9e281c2SIlya Dryomov void osd_req_op_extent_osd_data_bvec_pos(struct ceph_osd_request *osd_req, 264b9e281c2SIlya Dryomov unsigned int which, 265b9e281c2SIlya Dryomov struct ceph_bvec_iter *bvec_pos) 266b9e281c2SIlya Dryomov { 267b9e281c2SIlya Dryomov struct ceph_osd_data *osd_data; 268b9e281c2SIlya Dryomov 269b9e281c2SIlya Dryomov osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 2700010f705SIlya Dryomov ceph_osd_data_bvecs_init(osd_data, bvec_pos, 0); 271b9e281c2SIlya Dryomov } 272b9e281c2SIlya Dryomov EXPORT_SYMBOL(osd_req_op_extent_osd_data_bvec_pos); 273b9e281c2SIlya Dryomov 274dee0c5f8SJeff Layton /** 275dee0c5f8SJeff Layton * osd_req_op_extent_osd_iter - Set up an operation with an iterator buffer 276dee0c5f8SJeff Layton * @osd_req: The request to set up 277dee0c5f8SJeff Layton * @which: Index of the operation in which to set the iter 278dee0c5f8SJeff Layton * @iter: The buffer iterator 279dee0c5f8SJeff Layton */ 280dee0c5f8SJeff Layton void osd_req_op_extent_osd_iter(struct ceph_osd_request *osd_req, 281dee0c5f8SJeff Layton unsigned int which, struct iov_iter *iter) 282dee0c5f8SJeff Layton { 283dee0c5f8SJeff Layton struct ceph_osd_data *osd_data; 284dee0c5f8SJeff Layton 285dee0c5f8SJeff Layton osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 286dee0c5f8SJeff Layton ceph_osd_iter_init(osd_data, iter); 287dee0c5f8SJeff Layton } 288dee0c5f8SJeff Layton EXPORT_SYMBOL(osd_req_op_extent_osd_iter); 289dee0c5f8SJeff Layton 290a4ce40a9SAlex Elder static void osd_req_op_cls_request_info_pagelist( 291a4ce40a9SAlex Elder struct ceph_osd_request *osd_req, 292a4ce40a9SAlex Elder unsigned int which, struct ceph_pagelist *pagelist) 293a4ce40a9SAlex Elder { 294a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 295a4ce40a9SAlex Elder 296863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, request_info); 297a4ce40a9SAlex Elder ceph_osd_data_pagelist_init(osd_data, pagelist); 298a4ce40a9SAlex Elder } 299a4ce40a9SAlex Elder 30004017e29SAlex Elder void osd_req_op_cls_request_data_pagelist( 30104017e29SAlex Elder struct ceph_osd_request *osd_req, 30204017e29SAlex Elder unsigned int which, struct ceph_pagelist *pagelist) 30304017e29SAlex Elder { 30404017e29SAlex Elder struct ceph_osd_data *osd_data; 30504017e29SAlex Elder 306863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, request_data); 30704017e29SAlex Elder ceph_osd_data_pagelist_init(osd_data, pagelist); 308bb873b53SIlya Dryomov osd_req->r_ops[which].cls.indata_len += pagelist->length; 309bb873b53SIlya Dryomov osd_req->r_ops[which].indata_len += pagelist->length; 31004017e29SAlex Elder } 31104017e29SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_request_data_pagelist); 31204017e29SAlex Elder 3136c57b554SAlex Elder void osd_req_op_cls_request_data_pages(struct ceph_osd_request *osd_req, 3146c57b554SAlex Elder unsigned int which, struct page **pages, u64 length, 3156c57b554SAlex Elder u32 alignment, bool pages_from_pool, bool own_pages) 3166c57b554SAlex Elder { 3176c57b554SAlex Elder struct ceph_osd_data *osd_data; 3186c57b554SAlex Elder 3196c57b554SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, request_data); 3206c57b554SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 3216c57b554SAlex Elder pages_from_pool, own_pages); 322bb873b53SIlya Dryomov osd_req->r_ops[which].cls.indata_len += length; 323bb873b53SIlya Dryomov osd_req->r_ops[which].indata_len += length; 3246c57b554SAlex Elder } 3256c57b554SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_request_data_pages); 3266c57b554SAlex Elder 327b9e281c2SIlya Dryomov void osd_req_op_cls_request_data_bvecs(struct ceph_osd_request *osd_req, 328b9e281c2SIlya Dryomov unsigned int which, 3290010f705SIlya Dryomov struct bio_vec *bvecs, u32 num_bvecs, 3300010f705SIlya Dryomov u32 bytes) 331b9e281c2SIlya Dryomov { 332b9e281c2SIlya Dryomov struct ceph_osd_data *osd_data; 333b9e281c2SIlya Dryomov struct ceph_bvec_iter it = { 334b9e281c2SIlya Dryomov .bvecs = bvecs, 335b9e281c2SIlya Dryomov .iter = { .bi_size = bytes }, 336b9e281c2SIlya Dryomov }; 337b9e281c2SIlya Dryomov 338b9e281c2SIlya Dryomov osd_data = osd_req_op_data(osd_req, which, cls, request_data); 3390010f705SIlya Dryomov ceph_osd_data_bvecs_init(osd_data, &it, num_bvecs); 340b9e281c2SIlya Dryomov osd_req->r_ops[which].cls.indata_len += bytes; 341b9e281c2SIlya Dryomov osd_req->r_ops[which].indata_len += bytes; 342b9e281c2SIlya Dryomov } 343b9e281c2SIlya Dryomov EXPORT_SYMBOL(osd_req_op_cls_request_data_bvecs); 344b9e281c2SIlya Dryomov 345a4ce40a9SAlex Elder void osd_req_op_cls_response_data_pages(struct ceph_osd_request *osd_req, 346a4ce40a9SAlex Elder unsigned int which, struct page **pages, u64 length, 347a4ce40a9SAlex Elder u32 alignment, bool pages_from_pool, bool own_pages) 348a4ce40a9SAlex Elder { 349a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 350a4ce40a9SAlex Elder 351863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, response_data); 352a4ce40a9SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 353a4ce40a9SAlex Elder pages_from_pool, own_pages); 354a4ce40a9SAlex Elder } 355a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_response_data_pages); 356a4ce40a9SAlex Elder 35723c08a9cSAlex Elder static u64 ceph_osd_data_length(struct ceph_osd_data *osd_data) 35823c08a9cSAlex Elder { 35923c08a9cSAlex Elder switch (osd_data->type) { 36023c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_NONE: 36123c08a9cSAlex Elder return 0; 36223c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_PAGES: 36323c08a9cSAlex Elder return osd_data->length; 36423c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_PAGELIST: 36523c08a9cSAlex Elder return (u64)osd_data->pagelist->length; 36623c08a9cSAlex Elder #ifdef CONFIG_BLOCK 36723c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_BIO: 36823c08a9cSAlex Elder return (u64)osd_data->bio_length; 36923c08a9cSAlex Elder #endif /* CONFIG_BLOCK */ 370b9e281c2SIlya Dryomov case CEPH_OSD_DATA_TYPE_BVECS: 371b9e281c2SIlya Dryomov return osd_data->bvec_pos.iter.bi_size; 372dee0c5f8SJeff Layton case CEPH_OSD_DATA_TYPE_ITER: 373dee0c5f8SJeff Layton return iov_iter_count(&osd_data->iter); 37423c08a9cSAlex Elder default: 37523c08a9cSAlex Elder WARN(true, "unrecognized data type %d\n", (int)osd_data->type); 37623c08a9cSAlex Elder return 0; 37723c08a9cSAlex Elder } 37823c08a9cSAlex Elder } 37923c08a9cSAlex Elder 380c54d47bfSAlex Elder static void ceph_osd_data_release(struct ceph_osd_data *osd_data) 381c54d47bfSAlex Elder { 3825476492fSAlex Elder if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES && osd_data->own_pages) { 383c54d47bfSAlex Elder int num_pages; 384c54d47bfSAlex Elder 385c54d47bfSAlex Elder num_pages = calc_pages_for((u64)osd_data->alignment, 386c54d47bfSAlex Elder (u64)osd_data->length); 387c54d47bfSAlex Elder ceph_release_page_vector(osd_data->pages, num_pages); 38889486833SIlya Dryomov } else if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGELIST) { 38989486833SIlya Dryomov ceph_pagelist_release(osd_data->pagelist); 390c54d47bfSAlex Elder } 3915476492fSAlex Elder ceph_osd_data_init(osd_data); 3925476492fSAlex Elder } 3935476492fSAlex Elder 3945476492fSAlex Elder static void osd_req_op_data_release(struct ceph_osd_request *osd_req, 3955476492fSAlex Elder unsigned int which) 3965476492fSAlex Elder { 3975476492fSAlex Elder struct ceph_osd_req_op *op; 3985476492fSAlex Elder 3995476492fSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 4005476492fSAlex Elder op = &osd_req->r_ops[which]; 4015476492fSAlex Elder 4025476492fSAlex Elder switch (op->op) { 4035476492fSAlex Elder case CEPH_OSD_OP_READ: 404f628d799SJeff Layton case CEPH_OSD_OP_SPARSE_READ: 4055476492fSAlex Elder case CEPH_OSD_OP_WRITE: 406e30b7577SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 407a679e50fSJeff Layton kfree(op->extent.sparse_ext); 4085476492fSAlex Elder ceph_osd_data_release(&op->extent.osd_data); 4095476492fSAlex Elder break; 4105476492fSAlex Elder case CEPH_OSD_OP_CALL: 4115476492fSAlex Elder ceph_osd_data_release(&op->cls.request_info); 41204017e29SAlex Elder ceph_osd_data_release(&op->cls.request_data); 4135476492fSAlex Elder ceph_osd_data_release(&op->cls.response_data); 4145476492fSAlex Elder break; 415d74b50beSYan, Zheng case CEPH_OSD_OP_SETXATTR: 416d74b50beSYan, Zheng case CEPH_OSD_OP_CMPXATTR: 417d74b50beSYan, Zheng ceph_osd_data_release(&op->xattr.osd_data); 418d74b50beSYan, Zheng break; 41966ba609fSYan, Zheng case CEPH_OSD_OP_STAT: 42066ba609fSYan, Zheng ceph_osd_data_release(&op->raw_data_in); 42166ba609fSYan, Zheng break; 422922dab61SIlya Dryomov case CEPH_OSD_OP_NOTIFY_ACK: 423922dab61SIlya Dryomov ceph_osd_data_release(&op->notify_ack.request_data); 424922dab61SIlya Dryomov break; 42519079203SIlya Dryomov case CEPH_OSD_OP_NOTIFY: 42619079203SIlya Dryomov ceph_osd_data_release(&op->notify.request_data); 42719079203SIlya Dryomov ceph_osd_data_release(&op->notify.response_data); 42819079203SIlya Dryomov break; 429a4ed38d7SDouglas Fuller case CEPH_OSD_OP_LIST_WATCHERS: 430a4ed38d7SDouglas Fuller ceph_osd_data_release(&op->list_watchers.response_data); 431a4ed38d7SDouglas Fuller break; 43278beb0ffSLuis Henriques case CEPH_OSD_OP_COPY_FROM2: 43323ddf9beSLuis Henriques ceph_osd_data_release(&op->copy_from.osd_data); 43423ddf9beSLuis Henriques break; 4355476492fSAlex Elder default: 4365476492fSAlex Elder break; 4375476492fSAlex Elder } 438c54d47bfSAlex Elder } 439c54d47bfSAlex Elder 4403d14c5d2SYehuda Sadeh /* 44163244fa1SIlya Dryomov * Assumes @t is zero-initialized. 44263244fa1SIlya Dryomov */ 44363244fa1SIlya Dryomov static void target_init(struct ceph_osd_request_target *t) 44463244fa1SIlya Dryomov { 44563244fa1SIlya Dryomov ceph_oid_init(&t->base_oid); 44663244fa1SIlya Dryomov ceph_oloc_init(&t->base_oloc); 44763244fa1SIlya Dryomov ceph_oid_init(&t->target_oid); 44863244fa1SIlya Dryomov ceph_oloc_init(&t->target_oloc); 44963244fa1SIlya Dryomov 45063244fa1SIlya Dryomov ceph_osds_init(&t->acting); 45163244fa1SIlya Dryomov ceph_osds_init(&t->up); 45263244fa1SIlya Dryomov t->size = -1; 45363244fa1SIlya Dryomov t->min_size = -1; 45463244fa1SIlya Dryomov 45563244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 45663244fa1SIlya Dryomov } 45763244fa1SIlya Dryomov 458922dab61SIlya Dryomov static void target_copy(struct ceph_osd_request_target *dest, 459922dab61SIlya Dryomov const struct ceph_osd_request_target *src) 460922dab61SIlya Dryomov { 461922dab61SIlya Dryomov ceph_oid_copy(&dest->base_oid, &src->base_oid); 462922dab61SIlya Dryomov ceph_oloc_copy(&dest->base_oloc, &src->base_oloc); 463922dab61SIlya Dryomov ceph_oid_copy(&dest->target_oid, &src->target_oid); 464922dab61SIlya Dryomov ceph_oloc_copy(&dest->target_oloc, &src->target_oloc); 465922dab61SIlya Dryomov 466922dab61SIlya Dryomov dest->pgid = src->pgid; /* struct */ 467dc98ff72SIlya Dryomov dest->spgid = src->spgid; /* struct */ 468922dab61SIlya Dryomov dest->pg_num = src->pg_num; 469922dab61SIlya Dryomov dest->pg_num_mask = src->pg_num_mask; 470922dab61SIlya Dryomov ceph_osds_copy(&dest->acting, &src->acting); 471922dab61SIlya Dryomov ceph_osds_copy(&dest->up, &src->up); 472922dab61SIlya Dryomov dest->size = src->size; 473922dab61SIlya Dryomov dest->min_size = src->min_size; 474922dab61SIlya Dryomov dest->sort_bitwise = src->sort_bitwise; 4752f3fead6SIlya Dryomov dest->recovery_deletes = src->recovery_deletes; 476922dab61SIlya Dryomov 477922dab61SIlya Dryomov dest->flags = src->flags; 4787ed286f3SIlya Dryomov dest->used_replica = src->used_replica; 479922dab61SIlya Dryomov dest->paused = src->paused; 480922dab61SIlya Dryomov 48104c7d789SIlya Dryomov dest->epoch = src->epoch; 482dc93e0e2SIlya Dryomov dest->last_force_resend = src->last_force_resend; 483dc93e0e2SIlya Dryomov 484922dab61SIlya Dryomov dest->osd = src->osd; 485922dab61SIlya Dryomov } 486922dab61SIlya Dryomov 48763244fa1SIlya Dryomov static void target_destroy(struct ceph_osd_request_target *t) 48863244fa1SIlya Dryomov { 48963244fa1SIlya Dryomov ceph_oid_destroy(&t->base_oid); 49030c156d9SYan, Zheng ceph_oloc_destroy(&t->base_oloc); 49163244fa1SIlya Dryomov ceph_oid_destroy(&t->target_oid); 49230c156d9SYan, Zheng ceph_oloc_destroy(&t->target_oloc); 49363244fa1SIlya Dryomov } 49463244fa1SIlya Dryomov 49563244fa1SIlya Dryomov /* 4963d14c5d2SYehuda Sadeh * requests 4973d14c5d2SYehuda Sadeh */ 4983540bfdbSIlya Dryomov static void request_release_checks(struct ceph_osd_request *req) 4993540bfdbSIlya Dryomov { 5003540bfdbSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&req->r_node)); 5014609245eSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&req->r_mc_node)); 50294e85771SIlya Dryomov WARN_ON(!list_empty(&req->r_private_item)); 5033540bfdbSIlya Dryomov WARN_ON(req->r_osd); 5043540bfdbSIlya Dryomov } 5053540bfdbSIlya Dryomov 5069e94af20SIlya Dryomov static void ceph_osdc_release_request(struct kref *kref) 5073d14c5d2SYehuda Sadeh { 5089e94af20SIlya Dryomov struct ceph_osd_request *req = container_of(kref, 5099e94af20SIlya Dryomov struct ceph_osd_request, r_kref); 5105476492fSAlex Elder unsigned int which; 5113d14c5d2SYehuda Sadeh 5129e94af20SIlya Dryomov dout("%s %p (r_request %p r_reply %p)\n", __func__, req, 5139e94af20SIlya Dryomov req->r_request, req->r_reply); 5143540bfdbSIlya Dryomov request_release_checks(req); 5159e94af20SIlya Dryomov 5163d14c5d2SYehuda Sadeh if (req->r_request) 5173d14c5d2SYehuda Sadeh ceph_msg_put(req->r_request); 5185aea3dcdSIlya Dryomov if (req->r_reply) 519ab8cb34aSAlex Elder ceph_msg_put(req->r_reply); 5200fff87ecSAlex Elder 5215476492fSAlex Elder for (which = 0; which < req->r_num_ops; which++) 5225476492fSAlex Elder osd_req_op_data_release(req, which); 5230fff87ecSAlex Elder 524a66dd383SIlya Dryomov target_destroy(&req->r_t); 5253d14c5d2SYehuda Sadeh ceph_put_snap_context(req->r_snapc); 526d30291b9SIlya Dryomov 5273d14c5d2SYehuda Sadeh if (req->r_mempool) 5283d14c5d2SYehuda Sadeh mempool_free(req, req->r_osdc->req_mempool); 5293f1af42aSIlya Dryomov else if (req->r_num_ops <= CEPH_OSD_SLAB_OPS) 5305522ae0bSAlex Elder kmem_cache_free(ceph_osd_request_cache, req); 5313f1af42aSIlya Dryomov else 5323f1af42aSIlya Dryomov kfree(req); 5333d14c5d2SYehuda Sadeh } 5349e94af20SIlya Dryomov 5359e94af20SIlya Dryomov void ceph_osdc_get_request(struct ceph_osd_request *req) 5369e94af20SIlya Dryomov { 5379e94af20SIlya Dryomov dout("%s %p (was %d)\n", __func__, req, 5382c935bc5SPeter Zijlstra kref_read(&req->r_kref)); 5399e94af20SIlya Dryomov kref_get(&req->r_kref); 5409e94af20SIlya Dryomov } 5419e94af20SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_get_request); 5429e94af20SIlya Dryomov 5439e94af20SIlya Dryomov void ceph_osdc_put_request(struct ceph_osd_request *req) 5449e94af20SIlya Dryomov { 5453ed97d63SIlya Dryomov if (req) { 5469e94af20SIlya Dryomov dout("%s %p (was %d)\n", __func__, req, 5472c935bc5SPeter Zijlstra kref_read(&req->r_kref)); 5489e94af20SIlya Dryomov kref_put(&req->r_kref, ceph_osdc_release_request); 5499e94af20SIlya Dryomov } 5503ed97d63SIlya Dryomov } 5519e94af20SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_put_request); 5523d14c5d2SYehuda Sadeh 5533540bfdbSIlya Dryomov static void request_init(struct ceph_osd_request *req) 5543540bfdbSIlya Dryomov { 555042f6498SJeff Layton /* req only, each op is zeroed in osd_req_op_init() */ 5563540bfdbSIlya Dryomov memset(req, 0, sizeof(*req)); 5573540bfdbSIlya Dryomov 5583540bfdbSIlya Dryomov kref_init(&req->r_kref); 5593540bfdbSIlya Dryomov init_completion(&req->r_completion); 5603540bfdbSIlya Dryomov RB_CLEAR_NODE(&req->r_node); 5614609245eSIlya Dryomov RB_CLEAR_NODE(&req->r_mc_node); 56294e85771SIlya Dryomov INIT_LIST_HEAD(&req->r_private_item); 5633540bfdbSIlya Dryomov 5643540bfdbSIlya Dryomov target_init(&req->r_t); 5653540bfdbSIlya Dryomov } 5663540bfdbSIlya Dryomov 5673d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, 5683d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 5691b83bef2SSage Weil unsigned int num_ops, 5703d14c5d2SYehuda Sadeh bool use_mempool, 57154a54007SAlex Elder gfp_t gfp_flags) 5723d14c5d2SYehuda Sadeh { 5733d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 5743d14c5d2SYehuda Sadeh 5753d14c5d2SYehuda Sadeh if (use_mempool) { 5763f1af42aSIlya Dryomov BUG_ON(num_ops > CEPH_OSD_SLAB_OPS); 5773d14c5d2SYehuda Sadeh req = mempool_alloc(osdc->req_mempool, gfp_flags); 5783f1af42aSIlya Dryomov } else if (num_ops <= CEPH_OSD_SLAB_OPS) { 5793f1af42aSIlya Dryomov req = kmem_cache_alloc(ceph_osd_request_cache, gfp_flags); 5803d14c5d2SYehuda Sadeh } else { 5813f1af42aSIlya Dryomov BUG_ON(num_ops > CEPH_OSD_MAX_OPS); 582acafe7e3SKees Cook req = kmalloc(struct_size(req, r_ops, num_ops), gfp_flags); 5833d14c5d2SYehuda Sadeh } 5843f1af42aSIlya Dryomov if (unlikely(!req)) 5853d14c5d2SYehuda Sadeh return NULL; 5863d14c5d2SYehuda Sadeh 5873540bfdbSIlya Dryomov request_init(req); 5883d14c5d2SYehuda Sadeh req->r_osdc = osdc; 5893d14c5d2SYehuda Sadeh req->r_mempool = use_mempool; 59079528734SAlex Elder req->r_num_ops = num_ops; 59184127282SIlya Dryomov req->r_snapid = CEPH_NOSNAP; 59284127282SIlya Dryomov req->r_snapc = ceph_get_snap_context(snapc); 5933d14c5d2SYehuda Sadeh 59413d1ad16SIlya Dryomov dout("%s req %p\n", __func__, req); 59513d1ad16SIlya Dryomov return req; 5963f1af42aSIlya Dryomov } 59713d1ad16SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_alloc_request); 5983f1af42aSIlya Dryomov 5992e59ffd1SIlya Dryomov static int ceph_oloc_encoding_size(const struct ceph_object_locator *oloc) 60030c156d9SYan, Zheng { 60130c156d9SYan, Zheng return 8 + 4 + 4 + 4 + (oloc->pool_ns ? oloc->pool_ns->len : 0); 60230c156d9SYan, Zheng } 60330c156d9SYan, Zheng 6040d9c1ab3SIlya Dryomov static int __ceph_osdc_alloc_messages(struct ceph_osd_request *req, gfp_t gfp, 6050d9c1ab3SIlya Dryomov int num_request_data_items, 6060d9c1ab3SIlya Dryomov int num_reply_data_items) 60713d1ad16SIlya Dryomov { 60813d1ad16SIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 60913d1ad16SIlya Dryomov struct ceph_msg *msg; 61013d1ad16SIlya Dryomov int msg_size; 6113d14c5d2SYehuda Sadeh 6120d9c1ab3SIlya Dryomov WARN_ON(req->r_request || req->r_reply); 613d30291b9SIlya Dryomov WARN_ON(ceph_oid_empty(&req->r_base_oid)); 61430c156d9SYan, Zheng WARN_ON(ceph_oloc_empty(&req->r_base_oloc)); 615d30291b9SIlya Dryomov 61613d1ad16SIlya Dryomov /* create request message */ 6178cb441c0SIlya Dryomov msg_size = CEPH_ENCODING_START_BLK_LEN + 6188cb441c0SIlya Dryomov CEPH_PGID_ENCODING_LEN + 1; /* spgid */ 6198cb441c0SIlya Dryomov msg_size += 4 + 4 + 4; /* hash, osdmap_epoch, flags */ 6208cb441c0SIlya Dryomov msg_size += CEPH_ENCODING_START_BLK_LEN + 6218cb441c0SIlya Dryomov sizeof(struct ceph_osd_reqid); /* reqid */ 6228cb441c0SIlya Dryomov msg_size += sizeof(struct ceph_blkin_trace_info); /* trace */ 6238cb441c0SIlya Dryomov msg_size += 4 + sizeof(struct ceph_timespec); /* client_inc, mtime */ 62430c156d9SYan, Zheng msg_size += CEPH_ENCODING_START_BLK_LEN + 62530c156d9SYan, Zheng ceph_oloc_encoding_size(&req->r_base_oloc); /* oloc */ 62613d1ad16SIlya Dryomov msg_size += 4 + req->r_base_oid.name_len; /* oid */ 62713d1ad16SIlya Dryomov msg_size += 2 + req->r_num_ops * sizeof(struct ceph_osd_op); 628ae458f5aSIlya Dryomov msg_size += 8; /* snapid */ 629ae458f5aSIlya Dryomov msg_size += 8; /* snap_seq */ 63013d1ad16SIlya Dryomov msg_size += 4 + 8 * (req->r_snapc ? req->r_snapc->num_snaps : 0); 6318cb441c0SIlya Dryomov msg_size += 4 + 8; /* retry_attempt, features */ 632ae458f5aSIlya Dryomov 63313d1ad16SIlya Dryomov if (req->r_mempool) 6340d9c1ab3SIlya Dryomov msg = ceph_msgpool_get(&osdc->msgpool_op, msg_size, 6350d9c1ab3SIlya Dryomov num_request_data_items); 6363d14c5d2SYehuda Sadeh else 6370d9c1ab3SIlya Dryomov msg = ceph_msg_new2(CEPH_MSG_OSD_OP, msg_size, 6380d9c1ab3SIlya Dryomov num_request_data_items, gfp, true); 63913d1ad16SIlya Dryomov if (!msg) 64013d1ad16SIlya Dryomov return -ENOMEM; 6413d14c5d2SYehuda Sadeh 6423d14c5d2SYehuda Sadeh memset(msg->front.iov_base, 0, msg->front.iov_len); 6433d14c5d2SYehuda Sadeh req->r_request = msg; 6443d14c5d2SYehuda Sadeh 64513d1ad16SIlya Dryomov /* create reply message */ 64613d1ad16SIlya Dryomov msg_size = OSD_OPREPLY_FRONT_LEN; 647711da55dSIlya Dryomov msg_size += req->r_base_oid.name_len; 648711da55dSIlya Dryomov msg_size += req->r_num_ops * sizeof(struct ceph_osd_op); 64913d1ad16SIlya Dryomov 65013d1ad16SIlya Dryomov if (req->r_mempool) 6510d9c1ab3SIlya Dryomov msg = ceph_msgpool_get(&osdc->msgpool_op_reply, msg_size, 6520d9c1ab3SIlya Dryomov num_reply_data_items); 65313d1ad16SIlya Dryomov else 6540d9c1ab3SIlya Dryomov msg = ceph_msg_new2(CEPH_MSG_OSD_OPREPLY, msg_size, 6550d9c1ab3SIlya Dryomov num_reply_data_items, gfp, true); 65613d1ad16SIlya Dryomov if (!msg) 65713d1ad16SIlya Dryomov return -ENOMEM; 65813d1ad16SIlya Dryomov 65913d1ad16SIlya Dryomov req->r_reply = msg; 66013d1ad16SIlya Dryomov 66113d1ad16SIlya Dryomov return 0; 66213d1ad16SIlya Dryomov } 6633d14c5d2SYehuda Sadeh 664a8dd0a37SAlex Elder static bool osd_req_opcode_valid(u16 opcode) 665a8dd0a37SAlex Elder { 666a8dd0a37SAlex Elder switch (opcode) { 66770b5bfa3SIlya Dryomov #define GENERATE_CASE(op, opcode, str) case CEPH_OSD_OP_##op: return true; 66870b5bfa3SIlya Dryomov __CEPH_FORALL_OSD_OPS(GENERATE_CASE) 66970b5bfa3SIlya Dryomov #undef GENERATE_CASE 670a8dd0a37SAlex Elder default: 671a8dd0a37SAlex Elder return false; 672a8dd0a37SAlex Elder } 673a8dd0a37SAlex Elder } 674a8dd0a37SAlex Elder 6750d9c1ab3SIlya Dryomov static void get_num_data_items(struct ceph_osd_request *req, 6760d9c1ab3SIlya Dryomov int *num_request_data_items, 6770d9c1ab3SIlya Dryomov int *num_reply_data_items) 6780d9c1ab3SIlya Dryomov { 6790d9c1ab3SIlya Dryomov struct ceph_osd_req_op *op; 6800d9c1ab3SIlya Dryomov 6810d9c1ab3SIlya Dryomov *num_request_data_items = 0; 6820d9c1ab3SIlya Dryomov *num_reply_data_items = 0; 6830d9c1ab3SIlya Dryomov 6840d9c1ab3SIlya Dryomov for (op = req->r_ops; op != &req->r_ops[req->r_num_ops]; op++) { 6850d9c1ab3SIlya Dryomov switch (op->op) { 6860d9c1ab3SIlya Dryomov /* request */ 6870d9c1ab3SIlya Dryomov case CEPH_OSD_OP_WRITE: 6880d9c1ab3SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 6890d9c1ab3SIlya Dryomov case CEPH_OSD_OP_SETXATTR: 6900d9c1ab3SIlya Dryomov case CEPH_OSD_OP_CMPXATTR: 6910d9c1ab3SIlya Dryomov case CEPH_OSD_OP_NOTIFY_ACK: 69278beb0ffSLuis Henriques case CEPH_OSD_OP_COPY_FROM2: 6930d9c1ab3SIlya Dryomov *num_request_data_items += 1; 6940d9c1ab3SIlya Dryomov break; 6950d9c1ab3SIlya Dryomov 6960d9c1ab3SIlya Dryomov /* reply */ 6970d9c1ab3SIlya Dryomov case CEPH_OSD_OP_STAT: 6980d9c1ab3SIlya Dryomov case CEPH_OSD_OP_READ: 699f628d799SJeff Layton case CEPH_OSD_OP_SPARSE_READ: 7000d9c1ab3SIlya Dryomov case CEPH_OSD_OP_LIST_WATCHERS: 7010d9c1ab3SIlya Dryomov *num_reply_data_items += 1; 7020d9c1ab3SIlya Dryomov break; 7030d9c1ab3SIlya Dryomov 7040d9c1ab3SIlya Dryomov /* both */ 7050d9c1ab3SIlya Dryomov case CEPH_OSD_OP_NOTIFY: 7060d9c1ab3SIlya Dryomov *num_request_data_items += 1; 7070d9c1ab3SIlya Dryomov *num_reply_data_items += 1; 7080d9c1ab3SIlya Dryomov break; 7090d9c1ab3SIlya Dryomov case CEPH_OSD_OP_CALL: 7100d9c1ab3SIlya Dryomov *num_request_data_items += 2; 7110d9c1ab3SIlya Dryomov *num_reply_data_items += 1; 7120d9c1ab3SIlya Dryomov break; 7130d9c1ab3SIlya Dryomov 7140d9c1ab3SIlya Dryomov default: 7150d9c1ab3SIlya Dryomov WARN_ON(!osd_req_opcode_valid(op->op)); 7160d9c1ab3SIlya Dryomov break; 7170d9c1ab3SIlya Dryomov } 7180d9c1ab3SIlya Dryomov } 7190d9c1ab3SIlya Dryomov } 7200d9c1ab3SIlya Dryomov 7210d9c1ab3SIlya Dryomov /* 7220d9c1ab3SIlya Dryomov * oid, oloc and OSD op opcode(s) must be filled in before this function 7230d9c1ab3SIlya Dryomov * is called. 7240d9c1ab3SIlya Dryomov */ 7250d9c1ab3SIlya Dryomov int ceph_osdc_alloc_messages(struct ceph_osd_request *req, gfp_t gfp) 7260d9c1ab3SIlya Dryomov { 7270d9c1ab3SIlya Dryomov int num_request_data_items, num_reply_data_items; 7280d9c1ab3SIlya Dryomov 7290d9c1ab3SIlya Dryomov get_num_data_items(req, &num_request_data_items, &num_reply_data_items); 7300d9c1ab3SIlya Dryomov return __ceph_osdc_alloc_messages(req, gfp, num_request_data_items, 7310d9c1ab3SIlya Dryomov num_reply_data_items); 7320d9c1ab3SIlya Dryomov } 7330d9c1ab3SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_alloc_messages); 7340d9c1ab3SIlya Dryomov 73533803f33SAlex Elder /* 73633803f33SAlex Elder * This is an osd op init function for opcodes that have no data or 73733803f33SAlex Elder * other information associated with them. It also serves as a 73833803f33SAlex Elder * common init routine for all the other init functions, below. 73933803f33SAlex Elder */ 740042f6498SJeff Layton struct ceph_osd_req_op * 741042f6498SJeff Layton osd_req_op_init(struct ceph_osd_request *osd_req, unsigned int which, 742144cba14SYan, Zheng u16 opcode, u32 flags) 74333803f33SAlex Elder { 744c99d2d4aSAlex Elder struct ceph_osd_req_op *op; 745c99d2d4aSAlex Elder 746c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 74733803f33SAlex Elder BUG_ON(!osd_req_opcode_valid(opcode)); 74833803f33SAlex Elder 749c99d2d4aSAlex Elder op = &osd_req->r_ops[which]; 75033803f33SAlex Elder memset(op, 0, sizeof (*op)); 75133803f33SAlex Elder op->op = opcode; 752144cba14SYan, Zheng op->flags = flags; 753c99d2d4aSAlex Elder 754c99d2d4aSAlex Elder return op; 75533803f33SAlex Elder } 75649719778SAlex Elder EXPORT_SYMBOL(osd_req_op_init); 75749719778SAlex Elder 758c99d2d4aSAlex Elder void osd_req_op_extent_init(struct ceph_osd_request *osd_req, 759c99d2d4aSAlex Elder unsigned int which, u16 opcode, 76033803f33SAlex Elder u64 offset, u64 length, 76133803f33SAlex Elder u64 truncate_size, u32 truncate_seq) 76233803f33SAlex Elder { 763042f6498SJeff Layton struct ceph_osd_req_op *op = osd_req_op_init(osd_req, which, 764144cba14SYan, Zheng opcode, 0); 76533803f33SAlex Elder size_t payload_len = 0; 76633803f33SAlex Elder 767ad7a60deSLi Wang BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && 768e30b7577SIlya Dryomov opcode != CEPH_OSD_OP_WRITEFULL && opcode != CEPH_OSD_OP_ZERO && 769f628d799SJeff Layton opcode != CEPH_OSD_OP_TRUNCATE && opcode != CEPH_OSD_OP_SPARSE_READ); 77033803f33SAlex Elder 77133803f33SAlex Elder op->extent.offset = offset; 77233803f33SAlex Elder op->extent.length = length; 77333803f33SAlex Elder op->extent.truncate_size = truncate_size; 77433803f33SAlex Elder op->extent.truncate_seq = truncate_seq; 775e30b7577SIlya Dryomov if (opcode == CEPH_OSD_OP_WRITE || opcode == CEPH_OSD_OP_WRITEFULL) 77633803f33SAlex Elder payload_len += length; 77733803f33SAlex Elder 778de2aa102SIlya Dryomov op->indata_len = payload_len; 77933803f33SAlex Elder } 78033803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_init); 78133803f33SAlex Elder 782c99d2d4aSAlex Elder void osd_req_op_extent_update(struct ceph_osd_request *osd_req, 783c99d2d4aSAlex Elder unsigned int which, u64 length) 784e5975c7cSAlex Elder { 785c99d2d4aSAlex Elder struct ceph_osd_req_op *op; 786c99d2d4aSAlex Elder u64 previous; 787c99d2d4aSAlex Elder 788c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 789c99d2d4aSAlex Elder op = &osd_req->r_ops[which]; 790c99d2d4aSAlex Elder previous = op->extent.length; 791e5975c7cSAlex Elder 792e5975c7cSAlex Elder if (length == previous) 793e5975c7cSAlex Elder return; /* Nothing to do */ 794e5975c7cSAlex Elder BUG_ON(length > previous); 795e5975c7cSAlex Elder 796e5975c7cSAlex Elder op->extent.length = length; 797d641df81SYan, Zheng if (op->op == CEPH_OSD_OP_WRITE || op->op == CEPH_OSD_OP_WRITEFULL) 798de2aa102SIlya Dryomov op->indata_len -= previous - length; 799e5975c7cSAlex Elder } 800e5975c7cSAlex Elder EXPORT_SYMBOL(osd_req_op_extent_update); 801e5975c7cSAlex Elder 8022c63f49aSYan, Zheng void osd_req_op_extent_dup_last(struct ceph_osd_request *osd_req, 8032c63f49aSYan, Zheng unsigned int which, u64 offset_inc) 8042c63f49aSYan, Zheng { 8052c63f49aSYan, Zheng struct ceph_osd_req_op *op, *prev_op; 8062c63f49aSYan, Zheng 8072c63f49aSYan, Zheng BUG_ON(which + 1 >= osd_req->r_num_ops); 8082c63f49aSYan, Zheng 8092c63f49aSYan, Zheng prev_op = &osd_req->r_ops[which]; 810042f6498SJeff Layton op = osd_req_op_init(osd_req, which + 1, prev_op->op, prev_op->flags); 8112c63f49aSYan, Zheng /* dup previous one */ 8122c63f49aSYan, Zheng op->indata_len = prev_op->indata_len; 8132c63f49aSYan, Zheng op->outdata_len = prev_op->outdata_len; 8142c63f49aSYan, Zheng op->extent = prev_op->extent; 8152c63f49aSYan, Zheng /* adjust offset */ 8162c63f49aSYan, Zheng op->extent.offset += offset_inc; 8172c63f49aSYan, Zheng op->extent.length -= offset_inc; 8182c63f49aSYan, Zheng 8192c63f49aSYan, Zheng if (op->op == CEPH_OSD_OP_WRITE || op->op == CEPH_OSD_OP_WRITEFULL) 8202c63f49aSYan, Zheng op->indata_len -= offset_inc; 8212c63f49aSYan, Zheng } 8222c63f49aSYan, Zheng EXPORT_SYMBOL(osd_req_op_extent_dup_last); 8232c63f49aSYan, Zheng 824fe943d50SChengguang Xu int osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which, 82524639ce5SIlya Dryomov const char *class, const char *method) 82633803f33SAlex Elder { 82724639ce5SIlya Dryomov struct ceph_osd_req_op *op; 8285f562df5SAlex Elder struct ceph_pagelist *pagelist; 82933803f33SAlex Elder size_t payload_len = 0; 83033803f33SAlex Elder size_t size; 8314766815bSDavid Disseldorp int ret; 83233803f33SAlex Elder 833042f6498SJeff Layton op = osd_req_op_init(osd_req, which, CEPH_OSD_OP_CALL, 0); 83433803f33SAlex Elder 83533165d47SIlya Dryomov pagelist = ceph_pagelist_alloc(GFP_NOFS); 836fe943d50SChengguang Xu if (!pagelist) 837fe943d50SChengguang Xu return -ENOMEM; 838fe943d50SChengguang Xu 83933803f33SAlex Elder op->cls.class_name = class; 84033803f33SAlex Elder size = strlen(class); 84133803f33SAlex Elder BUG_ON(size > (size_t) U8_MAX); 84233803f33SAlex Elder op->cls.class_len = size; 8434766815bSDavid Disseldorp ret = ceph_pagelist_append(pagelist, class, size); 8444766815bSDavid Disseldorp if (ret) 8454766815bSDavid Disseldorp goto err_pagelist_free; 84633803f33SAlex Elder payload_len += size; 84733803f33SAlex Elder 84833803f33SAlex Elder op->cls.method_name = method; 84933803f33SAlex Elder size = strlen(method); 85033803f33SAlex Elder BUG_ON(size > (size_t) U8_MAX); 85133803f33SAlex Elder op->cls.method_len = size; 8524766815bSDavid Disseldorp ret = ceph_pagelist_append(pagelist, method, size); 8534766815bSDavid Disseldorp if (ret) 8544766815bSDavid Disseldorp goto err_pagelist_free; 85533803f33SAlex Elder payload_len += size; 85633803f33SAlex Elder 857a4ce40a9SAlex Elder osd_req_op_cls_request_info_pagelist(osd_req, which, pagelist); 858de2aa102SIlya Dryomov op->indata_len = payload_len; 859fe943d50SChengguang Xu return 0; 8604766815bSDavid Disseldorp 8614766815bSDavid Disseldorp err_pagelist_free: 8624766815bSDavid Disseldorp ceph_pagelist_release(pagelist); 8634766815bSDavid Disseldorp return ret; 86433803f33SAlex Elder } 86533803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_init); 8668c042b0dSAlex Elder 867d74b50beSYan, Zheng int osd_req_op_xattr_init(struct ceph_osd_request *osd_req, unsigned int which, 868d74b50beSYan, Zheng u16 opcode, const char *name, const void *value, 869d74b50beSYan, Zheng size_t size, u8 cmp_op, u8 cmp_mode) 870d74b50beSYan, Zheng { 871042f6498SJeff Layton struct ceph_osd_req_op *op = osd_req_op_init(osd_req, which, 872144cba14SYan, Zheng opcode, 0); 873d74b50beSYan, Zheng struct ceph_pagelist *pagelist; 874d74b50beSYan, Zheng size_t payload_len; 8754766815bSDavid Disseldorp int ret; 876d74b50beSYan, Zheng 877d74b50beSYan, Zheng BUG_ON(opcode != CEPH_OSD_OP_SETXATTR && opcode != CEPH_OSD_OP_CMPXATTR); 878d74b50beSYan, Zheng 87933165d47SIlya Dryomov pagelist = ceph_pagelist_alloc(GFP_NOFS); 880d74b50beSYan, Zheng if (!pagelist) 881d74b50beSYan, Zheng return -ENOMEM; 882d74b50beSYan, Zheng 883d74b50beSYan, Zheng payload_len = strlen(name); 884d74b50beSYan, Zheng op->xattr.name_len = payload_len; 8854766815bSDavid Disseldorp ret = ceph_pagelist_append(pagelist, name, payload_len); 8864766815bSDavid Disseldorp if (ret) 8874766815bSDavid Disseldorp goto err_pagelist_free; 888d74b50beSYan, Zheng 889d74b50beSYan, Zheng op->xattr.value_len = size; 8904766815bSDavid Disseldorp ret = ceph_pagelist_append(pagelist, value, size); 8914766815bSDavid Disseldorp if (ret) 8924766815bSDavid Disseldorp goto err_pagelist_free; 893d74b50beSYan, Zheng payload_len += size; 894d74b50beSYan, Zheng 895d74b50beSYan, Zheng op->xattr.cmp_op = cmp_op; 896d74b50beSYan, Zheng op->xattr.cmp_mode = cmp_mode; 897d74b50beSYan, Zheng 898d74b50beSYan, Zheng ceph_osd_data_pagelist_init(&op->xattr.osd_data, pagelist); 899de2aa102SIlya Dryomov op->indata_len = payload_len; 900d74b50beSYan, Zheng return 0; 9014766815bSDavid Disseldorp 9024766815bSDavid Disseldorp err_pagelist_free: 9034766815bSDavid Disseldorp ceph_pagelist_release(pagelist); 9044766815bSDavid Disseldorp return ret; 905d74b50beSYan, Zheng } 906d74b50beSYan, Zheng EXPORT_SYMBOL(osd_req_op_xattr_init); 907d74b50beSYan, Zheng 908922dab61SIlya Dryomov /* 909922dab61SIlya Dryomov * @watch_opcode: CEPH_OSD_WATCH_OP_* 910922dab61SIlya Dryomov */ 911922dab61SIlya Dryomov static void osd_req_op_watch_init(struct ceph_osd_request *req, int which, 91275dbb685SIlya Dryomov u8 watch_opcode, u64 cookie, u32 gen) 91333803f33SAlex Elder { 914922dab61SIlya Dryomov struct ceph_osd_req_op *op; 91533803f33SAlex Elder 916042f6498SJeff Layton op = osd_req_op_init(req, which, CEPH_OSD_OP_WATCH, 0); 91733803f33SAlex Elder op->watch.cookie = cookie; 918922dab61SIlya Dryomov op->watch.op = watch_opcode; 91975dbb685SIlya Dryomov op->watch.gen = gen; 92075dbb685SIlya Dryomov } 92175dbb685SIlya Dryomov 92275dbb685SIlya Dryomov /* 92375dbb685SIlya Dryomov * prot_ver, timeout and notify payload (may be empty) should already be 92475dbb685SIlya Dryomov * encoded in @request_pl 92575dbb685SIlya Dryomov */ 92675dbb685SIlya Dryomov static void osd_req_op_notify_init(struct ceph_osd_request *req, int which, 92775dbb685SIlya Dryomov u64 cookie, struct ceph_pagelist *request_pl) 92875dbb685SIlya Dryomov { 92975dbb685SIlya Dryomov struct ceph_osd_req_op *op; 93075dbb685SIlya Dryomov 93175dbb685SIlya Dryomov op = osd_req_op_init(req, which, CEPH_OSD_OP_NOTIFY, 0); 93275dbb685SIlya Dryomov op->notify.cookie = cookie; 93375dbb685SIlya Dryomov 93475dbb685SIlya Dryomov ceph_osd_data_pagelist_init(&op->notify.request_data, request_pl); 93575dbb685SIlya Dryomov op->indata_len = request_pl->length; 93633803f33SAlex Elder } 93733803f33SAlex Elder 938d3798accSIlya Dryomov /* 939d3798accSIlya Dryomov * @flags: CEPH_OSD_OP_ALLOC_HINT_FLAG_* 940d3798accSIlya Dryomov */ 941c647b8a8SIlya Dryomov void osd_req_op_alloc_hint_init(struct ceph_osd_request *osd_req, 942c647b8a8SIlya Dryomov unsigned int which, 943c647b8a8SIlya Dryomov u64 expected_object_size, 944d3798accSIlya Dryomov u64 expected_write_size, 945d3798accSIlya Dryomov u32 flags) 946c647b8a8SIlya Dryomov { 947042f6498SJeff Layton struct ceph_osd_req_op *op; 948c647b8a8SIlya Dryomov 949042f6498SJeff Layton op = osd_req_op_init(osd_req, which, CEPH_OSD_OP_SETALLOCHINT, 0); 950c647b8a8SIlya Dryomov op->alloc_hint.expected_object_size = expected_object_size; 951c647b8a8SIlya Dryomov op->alloc_hint.expected_write_size = expected_write_size; 952d3798accSIlya Dryomov op->alloc_hint.flags = flags; 953c647b8a8SIlya Dryomov 954c647b8a8SIlya Dryomov /* 955c647b8a8SIlya Dryomov * CEPH_OSD_OP_SETALLOCHINT op is advisory and therefore deemed 956c647b8a8SIlya Dryomov * not worth a feature bit. Set FAILOK per-op flag to make 957c647b8a8SIlya Dryomov * sure older osds don't trip over an unsupported opcode. 958c647b8a8SIlya Dryomov */ 959c647b8a8SIlya Dryomov op->flags |= CEPH_OSD_OP_FLAG_FAILOK; 960c647b8a8SIlya Dryomov } 961c647b8a8SIlya Dryomov EXPORT_SYMBOL(osd_req_op_alloc_hint_init); 962c647b8a8SIlya Dryomov 96390af3602SAlex Elder static void ceph_osdc_msg_data_add(struct ceph_msg *msg, 964ec9123c5SAlex Elder struct ceph_osd_data *osd_data) 965ec9123c5SAlex Elder { 966ec9123c5SAlex Elder u64 length = ceph_osd_data_length(osd_data); 967ec9123c5SAlex Elder 968ec9123c5SAlex Elder if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { 969ec9123c5SAlex Elder BUG_ON(length > (u64) SIZE_MAX); 970ec9123c5SAlex Elder if (length) 97190af3602SAlex Elder ceph_msg_data_add_pages(msg, osd_data->pages, 972e8862740SIlya Dryomov length, osd_data->alignment, false); 973ec9123c5SAlex Elder } else if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGELIST) { 974ec9123c5SAlex Elder BUG_ON(!length); 97590af3602SAlex Elder ceph_msg_data_add_pagelist(msg, osd_data->pagelist); 976ec9123c5SAlex Elder #ifdef CONFIG_BLOCK 977ec9123c5SAlex Elder } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) { 9785359a17dSIlya Dryomov ceph_msg_data_add_bio(msg, &osd_data->bio_pos, length); 979ec9123c5SAlex Elder #endif 980b9e281c2SIlya Dryomov } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BVECS) { 981b9e281c2SIlya Dryomov ceph_msg_data_add_bvecs(msg, &osd_data->bvec_pos); 982dee0c5f8SJeff Layton } else if (osd_data->type == CEPH_OSD_DATA_TYPE_ITER) { 983dee0c5f8SJeff Layton ceph_msg_data_add_iter(msg, &osd_data->iter); 984ec9123c5SAlex Elder } else { 985ec9123c5SAlex Elder BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_NONE); 986ec9123c5SAlex Elder } 987ec9123c5SAlex Elder } 988ec9123c5SAlex Elder 989bb873b53SIlya Dryomov static u32 osd_req_encode_op(struct ceph_osd_op *dst, 990bb873b53SIlya Dryomov const struct ceph_osd_req_op *src) 9913d14c5d2SYehuda Sadeh { 992065a68f9SAlex Elder switch (src->op) { 993fbfab539SAlex Elder case CEPH_OSD_OP_STAT: 994fbfab539SAlex Elder break; 9953d14c5d2SYehuda Sadeh case CEPH_OSD_OP_READ: 996f628d799SJeff Layton case CEPH_OSD_OP_SPARSE_READ: 9973d14c5d2SYehuda Sadeh case CEPH_OSD_OP_WRITE: 998e30b7577SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 999ad7a60deSLi Wang case CEPH_OSD_OP_ZERO: 1000ad7a60deSLi Wang case CEPH_OSD_OP_TRUNCATE: 1001175face2SAlex Elder dst->extent.offset = cpu_to_le64(src->extent.offset); 1002175face2SAlex Elder dst->extent.length = cpu_to_le64(src->extent.length); 10033d14c5d2SYehuda Sadeh dst->extent.truncate_size = 10043d14c5d2SYehuda Sadeh cpu_to_le64(src->extent.truncate_size); 10053d14c5d2SYehuda Sadeh dst->extent.truncate_seq = 10063d14c5d2SYehuda Sadeh cpu_to_le32(src->extent.truncate_seq); 10073d14c5d2SYehuda Sadeh break; 10083d14c5d2SYehuda Sadeh case CEPH_OSD_OP_CALL: 10093d14c5d2SYehuda Sadeh dst->cls.class_len = src->cls.class_len; 10103d14c5d2SYehuda Sadeh dst->cls.method_len = src->cls.method_len; 1011bb873b53SIlya Dryomov dst->cls.indata_len = cpu_to_le32(src->cls.indata_len); 10123d14c5d2SYehuda Sadeh break; 1013a40c4f10SYehuda Sadeh case CEPH_OSD_OP_WATCH: 1014a40c4f10SYehuda Sadeh dst->watch.cookie = cpu_to_le64(src->watch.cookie); 1015922dab61SIlya Dryomov dst->watch.ver = cpu_to_le64(0); 1016922dab61SIlya Dryomov dst->watch.op = src->watch.op; 1017922dab61SIlya Dryomov dst->watch.gen = cpu_to_le32(src->watch.gen); 1018922dab61SIlya Dryomov break; 1019922dab61SIlya Dryomov case CEPH_OSD_OP_NOTIFY_ACK: 1020a40c4f10SYehuda Sadeh break; 102119079203SIlya Dryomov case CEPH_OSD_OP_NOTIFY: 102219079203SIlya Dryomov dst->notify.cookie = cpu_to_le64(src->notify.cookie); 102319079203SIlya Dryomov break; 1024a4ed38d7SDouglas Fuller case CEPH_OSD_OP_LIST_WATCHERS: 1025a4ed38d7SDouglas Fuller break; 1026c647b8a8SIlya Dryomov case CEPH_OSD_OP_SETALLOCHINT: 1027c647b8a8SIlya Dryomov dst->alloc_hint.expected_object_size = 1028c647b8a8SIlya Dryomov cpu_to_le64(src->alloc_hint.expected_object_size); 1029c647b8a8SIlya Dryomov dst->alloc_hint.expected_write_size = 1030c647b8a8SIlya Dryomov cpu_to_le64(src->alloc_hint.expected_write_size); 1031d3798accSIlya Dryomov dst->alloc_hint.flags = cpu_to_le32(src->alloc_hint.flags); 1032c647b8a8SIlya Dryomov break; 1033d74b50beSYan, Zheng case CEPH_OSD_OP_SETXATTR: 1034d74b50beSYan, Zheng case CEPH_OSD_OP_CMPXATTR: 1035d74b50beSYan, Zheng dst->xattr.name_len = cpu_to_le32(src->xattr.name_len); 1036d74b50beSYan, Zheng dst->xattr.value_len = cpu_to_le32(src->xattr.value_len); 1037d74b50beSYan, Zheng dst->xattr.cmp_op = src->xattr.cmp_op; 1038d74b50beSYan, Zheng dst->xattr.cmp_mode = src->xattr.cmp_mode; 1039d74b50beSYan, Zheng break; 1040864e9197SYan, Zheng case CEPH_OSD_OP_CREATE: 1041864e9197SYan, Zheng case CEPH_OSD_OP_DELETE: 1042864e9197SYan, Zheng break; 104378beb0ffSLuis Henriques case CEPH_OSD_OP_COPY_FROM2: 104423ddf9beSLuis Henriques dst->copy_from.snapid = cpu_to_le64(src->copy_from.snapid); 104523ddf9beSLuis Henriques dst->copy_from.src_version = 104623ddf9beSLuis Henriques cpu_to_le64(src->copy_from.src_version); 104723ddf9beSLuis Henriques dst->copy_from.flags = src->copy_from.flags; 104823ddf9beSLuis Henriques dst->copy_from.src_fadvise_flags = 104923ddf9beSLuis Henriques cpu_to_le32(src->copy_from.src_fadvise_flags); 105023ddf9beSLuis Henriques break; 105169dd3b39SJeff Layton case CEPH_OSD_OP_ASSERT_VER: 105269dd3b39SJeff Layton dst->assert_ver.unused = cpu_to_le64(0); 105369dd3b39SJeff Layton dst->assert_ver.ver = cpu_to_le64(src->assert_ver.ver); 105469dd3b39SJeff Layton break; 10553d14c5d2SYehuda Sadeh default: 10564c46459cSAlex Elder pr_err("unsupported osd opcode %s\n", 10578f63ca2dSAlex Elder ceph_osd_op_name(src->op)); 10584c46459cSAlex Elder WARN_ON(1); 1059a8dd0a37SAlex Elder 1060a8dd0a37SAlex Elder return 0; 10613d14c5d2SYehuda Sadeh } 10627b25bf5fSIlya Dryomov 1063a8dd0a37SAlex Elder dst->op = cpu_to_le16(src->op); 10647b25bf5fSIlya Dryomov dst->flags = cpu_to_le32(src->flags); 1065de2aa102SIlya Dryomov dst->payload_len = cpu_to_le32(src->indata_len); 1066175face2SAlex Elder 1067bb873b53SIlya Dryomov return src->indata_len; 10683d14c5d2SYehuda Sadeh } 10693d14c5d2SYehuda Sadeh 10703d14c5d2SYehuda Sadeh /* 10713d14c5d2SYehuda Sadeh * build new request AND message, calculate layout, and adjust file 10723d14c5d2SYehuda Sadeh * extent as needed. 10733d14c5d2SYehuda Sadeh * 10743d14c5d2SYehuda Sadeh * if the file was recently truncated, we include information about its 10753d14c5d2SYehuda Sadeh * old and new size so that the object can be updated appropriately. (we 10763d14c5d2SYehuda Sadeh * avoid synchronously deleting truncated objects because it's slow.) 10773d14c5d2SYehuda Sadeh */ 10783d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, 10793d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 10803d14c5d2SYehuda Sadeh struct ceph_vino vino, 1081715e4cd4SYan, Zheng u64 off, u64 *plen, 1082715e4cd4SYan, Zheng unsigned int which, int num_ops, 10833d14c5d2SYehuda Sadeh int opcode, int flags, 10843d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 10853d14c5d2SYehuda Sadeh u32 truncate_seq, 10863d14c5d2SYehuda Sadeh u64 truncate_size, 1087153e5167SAlex Elder bool use_mempool) 10883d14c5d2SYehuda Sadeh { 10893d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 109075d1c941SAlex Elder u64 objnum = 0; 109175d1c941SAlex Elder u64 objoff = 0; 109275d1c941SAlex Elder u64 objlen = 0; 10936816282dSSage Weil int r; 10943d14c5d2SYehuda Sadeh 1095ad7a60deSLi Wang BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && 1096864e9197SYan, Zheng opcode != CEPH_OSD_OP_ZERO && opcode != CEPH_OSD_OP_TRUNCATE && 1097f628d799SJeff Layton opcode != CEPH_OSD_OP_CREATE && opcode != CEPH_OSD_OP_DELETE && 1098f628d799SJeff Layton opcode != CEPH_OSD_OP_SPARSE_READ); 10993d14c5d2SYehuda Sadeh 1100acead002SAlex Elder req = ceph_osdc_alloc_request(osdc, snapc, num_ops, use_mempool, 1101ae7ca4a3SAlex Elder GFP_NOFS); 110213d1ad16SIlya Dryomov if (!req) { 110313d1ad16SIlya Dryomov r = -ENOMEM; 110413d1ad16SIlya Dryomov goto fail; 110513d1ad16SIlya Dryomov } 110679528734SAlex Elder 11073d14c5d2SYehuda Sadeh /* calculate max write size */ 1108a19dadfbSAlex Elder r = calc_layout(layout, off, plen, &objnum, &objoff, &objlen); 110913d1ad16SIlya Dryomov if (r) 111013d1ad16SIlya Dryomov goto fail; 1111a19dadfbSAlex Elder 1112864e9197SYan, Zheng if (opcode == CEPH_OSD_OP_CREATE || opcode == CEPH_OSD_OP_DELETE) { 1113144cba14SYan, Zheng osd_req_op_init(req, which, opcode, 0); 1114864e9197SYan, Zheng } else { 11157627151eSYan, Zheng u32 object_size = layout->object_size; 1116864e9197SYan, Zheng u32 object_base = off - objoff; 1117ccca4e37SYan, Zheng if (!(truncate_seq == 1 && truncate_size == -1ULL)) { 1118d18d1e28SAlex Elder if (truncate_size <= object_base) { 1119d18d1e28SAlex Elder truncate_size = 0; 1120d18d1e28SAlex Elder } else { 1121d18d1e28SAlex Elder truncate_size -= object_base; 1122d18d1e28SAlex Elder if (truncate_size > object_size) 1123d18d1e28SAlex Elder truncate_size = object_size; 1124d18d1e28SAlex Elder } 1125ccca4e37SYan, Zheng } 1126715e4cd4SYan, Zheng osd_req_op_extent_init(req, which, opcode, objoff, objlen, 1127b0270324SAlex Elder truncate_size, truncate_seq); 1128864e9197SYan, Zheng } 1129d18d1e28SAlex Elder 11307627151eSYan, Zheng req->r_base_oloc.pool = layout->pool_id; 113130c156d9SYan, Zheng req->r_base_oloc.pool_ns = ceph_try_get_string(layout->pool_ns); 1132d30291b9SIlya Dryomov ceph_oid_printf(&req->r_base_oid, "%llx.%08llx", vino.ino, objnum); 113322d2cfdfSIlya Dryomov req->r_flags = flags | osdc->client->options->read_from_replica; 1134dbe0fc41SAlex Elder 1135bb873b53SIlya Dryomov req->r_snapid = vino.snap; 1136bb873b53SIlya Dryomov if (flags & CEPH_OSD_FLAG_WRITE) 1137bb873b53SIlya Dryomov req->r_data_offset = off; 1138bb873b53SIlya Dryomov 11394e8c4c23SJeff Layton if (num_ops > 1) { 11404e8c4c23SJeff Layton int num_req_ops, num_rep_ops; 11414e8c4c23SJeff Layton 11420d9c1ab3SIlya Dryomov /* 11434e8c4c23SJeff Layton * If this is a multi-op write request, assume that we'll need 11444e8c4c23SJeff Layton * request ops. If it's a multi-op read then assume we'll need 11454e8c4c23SJeff Layton * reply ops. Anything else and call it -EINVAL. 11460d9c1ab3SIlya Dryomov */ 11474e8c4c23SJeff Layton if (flags & CEPH_OSD_FLAG_WRITE) { 11484e8c4c23SJeff Layton num_req_ops = num_ops; 11494e8c4c23SJeff Layton num_rep_ops = 0; 11504e8c4c23SJeff Layton } else if (flags & CEPH_OSD_FLAG_READ) { 11514e8c4c23SJeff Layton num_req_ops = 0; 11524e8c4c23SJeff Layton num_rep_ops = num_ops; 11534e8c4c23SJeff Layton } else { 11544e8c4c23SJeff Layton r = -EINVAL; 11554e8c4c23SJeff Layton goto fail; 11564e8c4c23SJeff Layton } 11574e8c4c23SJeff Layton 11584e8c4c23SJeff Layton r = __ceph_osdc_alloc_messages(req, GFP_NOFS, num_req_ops, 11594e8c4c23SJeff Layton num_rep_ops); 11604e8c4c23SJeff Layton } else { 116113d1ad16SIlya Dryomov r = ceph_osdc_alloc_messages(req, GFP_NOFS); 11624e8c4c23SJeff Layton } 116313d1ad16SIlya Dryomov if (r) 116413d1ad16SIlya Dryomov goto fail; 116513d1ad16SIlya Dryomov 11663d14c5d2SYehuda Sadeh return req; 116713d1ad16SIlya Dryomov 116813d1ad16SIlya Dryomov fail: 116913d1ad16SIlya Dryomov ceph_osdc_put_request(req); 117013d1ad16SIlya Dryomov return ERR_PTR(r); 11713d14c5d2SYehuda Sadeh } 11723d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_new_request); 11733d14c5d2SYehuda Sadeh 1174a679e50fSJeff Layton int __ceph_alloc_sparse_ext_map(struct ceph_osd_req_op *op, int cnt) 1175a679e50fSJeff Layton { 1176a679e50fSJeff Layton op->extent.sparse_ext_cnt = cnt; 1177a679e50fSJeff Layton op->extent.sparse_ext = kmalloc_array(cnt, 1178a679e50fSJeff Layton sizeof(*op->extent.sparse_ext), 1179a679e50fSJeff Layton GFP_NOFS); 1180a679e50fSJeff Layton if (!op->extent.sparse_ext) 1181a679e50fSJeff Layton return -ENOMEM; 1182a679e50fSJeff Layton return 0; 1183a679e50fSJeff Layton } 1184a679e50fSJeff Layton EXPORT_SYMBOL(__ceph_alloc_sparse_ext_map); 1185a679e50fSJeff Layton 11863d14c5d2SYehuda Sadeh /* 11873d14c5d2SYehuda Sadeh * We keep osd requests in an rbtree, sorted by ->r_tid. 11883d14c5d2SYehuda Sadeh */ 1189fcd00b68SIlya Dryomov DEFINE_RB_FUNCS(request, struct ceph_osd_request, r_tid, r_node) 11904609245eSIlya Dryomov DEFINE_RB_FUNCS(request_mc, struct ceph_osd_request, r_tid, r_mc_node) 11913d14c5d2SYehuda Sadeh 119266850df5SIlya Dryomov /* 119366850df5SIlya Dryomov * Call @fn on each OSD request as long as @fn returns 0. 119466850df5SIlya Dryomov */ 119566850df5SIlya Dryomov static void for_each_request(struct ceph_osd_client *osdc, 119666850df5SIlya Dryomov int (*fn)(struct ceph_osd_request *req, void *arg), 119766850df5SIlya Dryomov void *arg) 119866850df5SIlya Dryomov { 119966850df5SIlya Dryomov struct rb_node *n, *p; 120066850df5SIlya Dryomov 120166850df5SIlya Dryomov for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { 120266850df5SIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 120366850df5SIlya Dryomov 120466850df5SIlya Dryomov for (p = rb_first(&osd->o_requests); p; ) { 120566850df5SIlya Dryomov struct ceph_osd_request *req = 120666850df5SIlya Dryomov rb_entry(p, struct ceph_osd_request, r_node); 120766850df5SIlya Dryomov 120866850df5SIlya Dryomov p = rb_next(p); 120966850df5SIlya Dryomov if (fn(req, arg)) 121066850df5SIlya Dryomov return; 121166850df5SIlya Dryomov } 121266850df5SIlya Dryomov } 121366850df5SIlya Dryomov 121466850df5SIlya Dryomov for (p = rb_first(&osdc->homeless_osd.o_requests); p; ) { 121566850df5SIlya Dryomov struct ceph_osd_request *req = 121666850df5SIlya Dryomov rb_entry(p, struct ceph_osd_request, r_node); 121766850df5SIlya Dryomov 121866850df5SIlya Dryomov p = rb_next(p); 121966850df5SIlya Dryomov if (fn(req, arg)) 122066850df5SIlya Dryomov return; 122166850df5SIlya Dryomov } 122266850df5SIlya Dryomov } 122366850df5SIlya Dryomov 12240247a0cfSIlya Dryomov static bool osd_homeless(struct ceph_osd *osd) 12250247a0cfSIlya Dryomov { 12260247a0cfSIlya Dryomov return osd->o_osd == CEPH_HOMELESS_OSD; 12270247a0cfSIlya Dryomov } 12280247a0cfSIlya Dryomov 12295aea3dcdSIlya Dryomov static bool osd_registered(struct ceph_osd *osd) 12303d14c5d2SYehuda Sadeh { 12315aea3dcdSIlya Dryomov verify_osdc_locked(osd->o_osdc); 12323d14c5d2SYehuda Sadeh 12335aea3dcdSIlya Dryomov return !RB_EMPTY_NODE(&osd->o_node); 12343d14c5d2SYehuda Sadeh } 12353d14c5d2SYehuda Sadeh 12363d14c5d2SYehuda Sadeh /* 12370247a0cfSIlya Dryomov * Assumes @osd is zero-initialized. 12380247a0cfSIlya Dryomov */ 12390247a0cfSIlya Dryomov static void osd_init(struct ceph_osd *osd) 12400247a0cfSIlya Dryomov { 124102113a0fSElena Reshetova refcount_set(&osd->o_ref, 1); 12420247a0cfSIlya Dryomov RB_CLEAR_NODE(&osd->o_node); 124308b8a044SJeff Layton spin_lock_init(&osd->o_requests_lock); 12445aea3dcdSIlya Dryomov osd->o_requests = RB_ROOT; 1245922dab61SIlya Dryomov osd->o_linger_requests = RB_ROOT; 1246a02a946dSIlya Dryomov osd->o_backoff_mappings = RB_ROOT; 1247a02a946dSIlya Dryomov osd->o_backoffs_by_id = RB_ROOT; 12480247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_osd_lru); 12490247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_keepalive_item); 12500247a0cfSIlya Dryomov osd->o_incarnation = 1; 12515aea3dcdSIlya Dryomov mutex_init(&osd->lock); 12520247a0cfSIlya Dryomov } 12530247a0cfSIlya Dryomov 1254f628d799SJeff Layton static void ceph_init_sparse_read(struct ceph_sparse_read *sr) 1255f628d799SJeff Layton { 1256f628d799SJeff Layton kfree(sr->sr_extent); 1257f628d799SJeff Layton memset(sr, '\0', sizeof(*sr)); 1258f628d799SJeff Layton sr->sr_state = CEPH_SPARSE_READ_HDR; 1259f628d799SJeff Layton } 1260f628d799SJeff Layton 12610247a0cfSIlya Dryomov static void osd_cleanup(struct ceph_osd *osd) 12620247a0cfSIlya Dryomov { 12630247a0cfSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&osd->o_node)); 12645aea3dcdSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_requests)); 1265922dab61SIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_linger_requests)); 1266a02a946dSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_backoff_mappings)); 1267a02a946dSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_backoffs_by_id)); 12680247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_osd_lru)); 12690247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_keepalive_item)); 12700247a0cfSIlya Dryomov 1271f628d799SJeff Layton ceph_init_sparse_read(&osd->o_sparse_read); 1272f628d799SJeff Layton 12730247a0cfSIlya Dryomov if (osd->o_auth.authorizer) { 12740247a0cfSIlya Dryomov WARN_ON(osd_homeless(osd)); 12750247a0cfSIlya Dryomov ceph_auth_destroy_authorizer(osd->o_auth.authorizer); 12760247a0cfSIlya Dryomov } 12770247a0cfSIlya Dryomov } 12780247a0cfSIlya Dryomov 12790247a0cfSIlya Dryomov /* 12803d14c5d2SYehuda Sadeh * Track open sessions with osds. 12813d14c5d2SYehuda Sadeh */ 1282e10006f8SAlex Elder static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum) 12833d14c5d2SYehuda Sadeh { 12843d14c5d2SYehuda Sadeh struct ceph_osd *osd; 12853d14c5d2SYehuda Sadeh 12860247a0cfSIlya Dryomov WARN_ON(onum == CEPH_HOMELESS_OSD); 12870247a0cfSIlya Dryomov 12887a28f59bSIlya Dryomov osd = kzalloc(sizeof(*osd), GFP_NOIO | __GFP_NOFAIL); 12890247a0cfSIlya Dryomov osd_init(osd); 12903d14c5d2SYehuda Sadeh osd->o_osdc = osdc; 1291e10006f8SAlex Elder osd->o_osd = onum; 1292f628d799SJeff Layton osd->o_sparse_op_idx = -1; 1293f628d799SJeff Layton 1294f628d799SJeff Layton ceph_init_sparse_read(&osd->o_sparse_read); 12953d14c5d2SYehuda Sadeh 1296b7a9e5ddSSage Weil ceph_con_init(&osd->o_con, osd, &osd_con_ops, &osdc->client->msgr); 12973d14c5d2SYehuda Sadeh 12983d14c5d2SYehuda Sadeh return osd; 12993d14c5d2SYehuda Sadeh } 13003d14c5d2SYehuda Sadeh 13013d14c5d2SYehuda Sadeh static struct ceph_osd *get_osd(struct ceph_osd *osd) 13023d14c5d2SYehuda Sadeh { 130302113a0fSElena Reshetova if (refcount_inc_not_zero(&osd->o_ref)) { 130402113a0fSElena Reshetova dout("get_osd %p %d -> %d\n", osd, refcount_read(&osd->o_ref)-1, 130502113a0fSElena Reshetova refcount_read(&osd->o_ref)); 13063d14c5d2SYehuda Sadeh return osd; 13073d14c5d2SYehuda Sadeh } else { 13083d14c5d2SYehuda Sadeh dout("get_osd %p FAIL\n", osd); 13093d14c5d2SYehuda Sadeh return NULL; 13103d14c5d2SYehuda Sadeh } 13113d14c5d2SYehuda Sadeh } 13123d14c5d2SYehuda Sadeh 13133d14c5d2SYehuda Sadeh static void put_osd(struct ceph_osd *osd) 13143d14c5d2SYehuda Sadeh { 131502113a0fSElena Reshetova dout("put_osd %p %d -> %d\n", osd, refcount_read(&osd->o_ref), 131602113a0fSElena Reshetova refcount_read(&osd->o_ref) - 1); 131702113a0fSElena Reshetova if (refcount_dec_and_test(&osd->o_ref)) { 13180247a0cfSIlya Dryomov osd_cleanup(osd); 13193d14c5d2SYehuda Sadeh kfree(osd); 13203d14c5d2SYehuda Sadeh } 13213d14c5d2SYehuda Sadeh } 13223d14c5d2SYehuda Sadeh 1323fcd00b68SIlya Dryomov DEFINE_RB_FUNCS(osd, struct ceph_osd, o_osd, o_node) 1324fcd00b68SIlya Dryomov 13259dd2845cSIlya Dryomov static void __move_osd_to_lru(struct ceph_osd *osd) 13263d14c5d2SYehuda Sadeh { 13279dd2845cSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 13289dd2845cSIlya Dryomov 13299dd2845cSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 13303d14c5d2SYehuda Sadeh BUG_ON(!list_empty(&osd->o_osd_lru)); 1331bbf37ec3SIlya Dryomov 13329dd2845cSIlya Dryomov spin_lock(&osdc->osd_lru_lock); 13333d14c5d2SYehuda Sadeh list_add_tail(&osd->o_osd_lru, &osdc->osd_lru); 13349dd2845cSIlya Dryomov spin_unlock(&osdc->osd_lru_lock); 13359dd2845cSIlya Dryomov 1336a319bf56SIlya Dryomov osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl; 13373d14c5d2SYehuda Sadeh } 13383d14c5d2SYehuda Sadeh 13399dd2845cSIlya Dryomov static void maybe_move_osd_to_lru(struct ceph_osd *osd) 1340bbf37ec3SIlya Dryomov { 13415aea3dcdSIlya Dryomov if (RB_EMPTY_ROOT(&osd->o_requests) && 1342922dab61SIlya Dryomov RB_EMPTY_ROOT(&osd->o_linger_requests)) 13439dd2845cSIlya Dryomov __move_osd_to_lru(osd); 1344bbf37ec3SIlya Dryomov } 1345bbf37ec3SIlya Dryomov 13463d14c5d2SYehuda Sadeh static void __remove_osd_from_lru(struct ceph_osd *osd) 13473d14c5d2SYehuda Sadeh { 13489dd2845cSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 13499dd2845cSIlya Dryomov 13509dd2845cSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 13519dd2845cSIlya Dryomov 13529dd2845cSIlya Dryomov spin_lock(&osdc->osd_lru_lock); 13533d14c5d2SYehuda Sadeh if (!list_empty(&osd->o_osd_lru)) 13543d14c5d2SYehuda Sadeh list_del_init(&osd->o_osd_lru); 13559dd2845cSIlya Dryomov spin_unlock(&osdc->osd_lru_lock); 13563d14c5d2SYehuda Sadeh } 13573d14c5d2SYehuda Sadeh 13583d14c5d2SYehuda Sadeh /* 13595aea3dcdSIlya Dryomov * Close the connection and assign any leftover requests to the 13605aea3dcdSIlya Dryomov * homeless session. 13615aea3dcdSIlya Dryomov */ 13625aea3dcdSIlya Dryomov static void close_osd(struct ceph_osd *osd) 13635aea3dcdSIlya Dryomov { 13645aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 13655aea3dcdSIlya Dryomov struct rb_node *n; 13665aea3dcdSIlya Dryomov 13675aea3dcdSIlya Dryomov verify_osdc_wrlocked(osdc); 13685aea3dcdSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 13695aea3dcdSIlya Dryomov 13705aea3dcdSIlya Dryomov ceph_con_close(&osd->o_con); 13715aea3dcdSIlya Dryomov 13725aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; ) { 13735aea3dcdSIlya Dryomov struct ceph_osd_request *req = 13745aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 13755aea3dcdSIlya Dryomov 13765aea3dcdSIlya Dryomov n = rb_next(n); /* unlink_request() */ 13775aea3dcdSIlya Dryomov 13785aea3dcdSIlya Dryomov dout(" reassigning req %p tid %llu\n", req, req->r_tid); 13795aea3dcdSIlya Dryomov unlink_request(osd, req); 13805aea3dcdSIlya Dryomov link_request(&osdc->homeless_osd, req); 13815aea3dcdSIlya Dryomov } 1382922dab61SIlya Dryomov for (n = rb_first(&osd->o_linger_requests); n; ) { 1383922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = 1384922dab61SIlya Dryomov rb_entry(n, struct ceph_osd_linger_request, node); 1385922dab61SIlya Dryomov 1386922dab61SIlya Dryomov n = rb_next(n); /* unlink_linger() */ 1387922dab61SIlya Dryomov 1388922dab61SIlya Dryomov dout(" reassigning lreq %p linger_id %llu\n", lreq, 1389922dab61SIlya Dryomov lreq->linger_id); 1390922dab61SIlya Dryomov unlink_linger(osd, lreq); 1391922dab61SIlya Dryomov link_linger(&osdc->homeless_osd, lreq); 1392922dab61SIlya Dryomov } 1393a02a946dSIlya Dryomov clear_backoffs(osd); 13945aea3dcdSIlya Dryomov 13955aea3dcdSIlya Dryomov __remove_osd_from_lru(osd); 13965aea3dcdSIlya Dryomov erase_osd(&osdc->osds, osd); 13975aea3dcdSIlya Dryomov put_osd(osd); 13985aea3dcdSIlya Dryomov } 13995aea3dcdSIlya Dryomov 14005aea3dcdSIlya Dryomov /* 14013d14c5d2SYehuda Sadeh * reset osd connect 14023d14c5d2SYehuda Sadeh */ 14035aea3dcdSIlya Dryomov static int reopen_osd(struct ceph_osd *osd) 14043d14c5d2SYehuda Sadeh { 1405c3acb181SAlex Elder struct ceph_entity_addr *peer_addr; 14063d14c5d2SYehuda Sadeh 14075aea3dcdSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 14085aea3dcdSIlya Dryomov 14095aea3dcdSIlya Dryomov if (RB_EMPTY_ROOT(&osd->o_requests) && 1410922dab61SIlya Dryomov RB_EMPTY_ROOT(&osd->o_linger_requests)) { 14115aea3dcdSIlya Dryomov close_osd(osd); 1412c3acb181SAlex Elder return -ENODEV; 1413c3acb181SAlex Elder } 1414c3acb181SAlex Elder 14155aea3dcdSIlya Dryomov peer_addr = &osd->o_osdc->osdmap->osd_addr[osd->o_osd]; 1416c3acb181SAlex Elder if (!memcmp(peer_addr, &osd->o_con.peer_addr, sizeof (*peer_addr)) && 14173d14c5d2SYehuda Sadeh !ceph_con_opened(&osd->o_con)) { 14185aea3dcdSIlya Dryomov struct rb_node *n; 1419c3acb181SAlex Elder 14203d14c5d2SYehuda Sadeh dout("osd addr hasn't changed and connection never opened, " 14210b4af2e8SIlya Dryomov "letting msgr retry\n"); 14223d14c5d2SYehuda Sadeh /* touch each r_stamp for handle_timeout()'s benfit */ 14235aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) { 14245aea3dcdSIlya Dryomov struct ceph_osd_request *req = 14255aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 14263d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 14275aea3dcdSIlya Dryomov } 1428c3acb181SAlex Elder 1429c3acb181SAlex Elder return -EAGAIN; 14303d14c5d2SYehuda Sadeh } 1431c3acb181SAlex Elder 1432c3acb181SAlex Elder ceph_con_close(&osd->o_con); 1433c3acb181SAlex Elder ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, peer_addr); 1434c3acb181SAlex Elder osd->o_incarnation++; 1435c3acb181SAlex Elder 1436c3acb181SAlex Elder return 0; 14373d14c5d2SYehuda Sadeh } 14383d14c5d2SYehuda Sadeh 14395aea3dcdSIlya Dryomov static struct ceph_osd *lookup_create_osd(struct ceph_osd_client *osdc, int o, 14405aea3dcdSIlya Dryomov bool wrlocked) 14413d14c5d2SYehuda Sadeh { 14425aea3dcdSIlya Dryomov struct ceph_osd *osd; 14435aea3dcdSIlya Dryomov 14445aea3dcdSIlya Dryomov if (wrlocked) 14455aea3dcdSIlya Dryomov verify_osdc_wrlocked(osdc); 14465aea3dcdSIlya Dryomov else 14475aea3dcdSIlya Dryomov verify_osdc_locked(osdc); 14485aea3dcdSIlya Dryomov 14495aea3dcdSIlya Dryomov if (o != CEPH_HOMELESS_OSD) 14505aea3dcdSIlya Dryomov osd = lookup_osd(&osdc->osds, o); 14515aea3dcdSIlya Dryomov else 14525aea3dcdSIlya Dryomov osd = &osdc->homeless_osd; 14535aea3dcdSIlya Dryomov if (!osd) { 14545aea3dcdSIlya Dryomov if (!wrlocked) 14555aea3dcdSIlya Dryomov return ERR_PTR(-EAGAIN); 14565aea3dcdSIlya Dryomov 14575aea3dcdSIlya Dryomov osd = create_osd(osdc, o); 14585aea3dcdSIlya Dryomov insert_osd(&osdc->osds, osd); 14595aea3dcdSIlya Dryomov ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, 14605aea3dcdSIlya Dryomov &osdc->osdmap->osd_addr[osd->o_osd]); 14615aea3dcdSIlya Dryomov } 14625aea3dcdSIlya Dryomov 14635aea3dcdSIlya Dryomov dout("%s osdc %p osd%d -> osd %p\n", __func__, osdc, o, osd); 14645aea3dcdSIlya Dryomov return osd; 1465a40c4f10SYehuda Sadeh } 1466a40c4f10SYehuda Sadeh 14673d14c5d2SYehuda Sadeh /* 14685aea3dcdSIlya Dryomov * Create request <-> OSD session relation. 14695aea3dcdSIlya Dryomov * 14705aea3dcdSIlya Dryomov * @req has to be assigned a tid, @osd may be homeless. 14713d14c5d2SYehuda Sadeh */ 14725aea3dcdSIlya Dryomov static void link_request(struct ceph_osd *osd, struct ceph_osd_request *req) 14733d14c5d2SYehuda Sadeh { 14745aea3dcdSIlya Dryomov verify_osd_locked(osd); 14755aea3dcdSIlya Dryomov WARN_ON(!req->r_tid || req->r_osd); 14765aea3dcdSIlya Dryomov dout("%s osd %p osd%d req %p tid %llu\n", __func__, osd, osd->o_osd, 147735f9f8a0SSage Weil req, req->r_tid); 14785aea3dcdSIlya Dryomov 14795aea3dcdSIlya Dryomov if (!osd_homeless(osd)) 14805aea3dcdSIlya Dryomov __remove_osd_from_lru(osd); 14815aea3dcdSIlya Dryomov else 14825aea3dcdSIlya Dryomov atomic_inc(&osd->o_osdc->num_homeless); 14835aea3dcdSIlya Dryomov 14845aea3dcdSIlya Dryomov get_osd(osd); 148508b8a044SJeff Layton spin_lock(&osd->o_requests_lock); 14865aea3dcdSIlya Dryomov insert_request(&osd->o_requests, req); 148708b8a044SJeff Layton spin_unlock(&osd->o_requests_lock); 14885aea3dcdSIlya Dryomov req->r_osd = osd; 148935f9f8a0SSage Weil } 149035f9f8a0SSage Weil 14915aea3dcdSIlya Dryomov static void unlink_request(struct ceph_osd *osd, struct ceph_osd_request *req) 14923d14c5d2SYehuda Sadeh { 14935aea3dcdSIlya Dryomov verify_osd_locked(osd); 14945aea3dcdSIlya Dryomov WARN_ON(req->r_osd != osd); 14955aea3dcdSIlya Dryomov dout("%s osd %p osd%d req %p tid %llu\n", __func__, osd, osd->o_osd, 14965aea3dcdSIlya Dryomov req, req->r_tid); 14975aea3dcdSIlya Dryomov 14985aea3dcdSIlya Dryomov req->r_osd = NULL; 149908b8a044SJeff Layton spin_lock(&osd->o_requests_lock); 15005aea3dcdSIlya Dryomov erase_request(&osd->o_requests, req); 150108b8a044SJeff Layton spin_unlock(&osd->o_requests_lock); 15025aea3dcdSIlya Dryomov put_osd(osd); 15035aea3dcdSIlya Dryomov 15045aea3dcdSIlya Dryomov if (!osd_homeless(osd)) 15055aea3dcdSIlya Dryomov maybe_move_osd_to_lru(osd); 15065aea3dcdSIlya Dryomov else 15075aea3dcdSIlya Dryomov atomic_dec(&osd->o_osdc->num_homeless); 15083d14c5d2SYehuda Sadeh } 15093d14c5d2SYehuda Sadeh 151063244fa1SIlya Dryomov static bool __pool_full(struct ceph_pg_pool_info *pi) 151163244fa1SIlya Dryomov { 151263244fa1SIlya Dryomov return pi->flags & CEPH_POOL_FLAG_FULL; 151363244fa1SIlya Dryomov } 151463244fa1SIlya Dryomov 151542c1b124SIlya Dryomov static bool have_pool_full(struct ceph_osd_client *osdc) 151642c1b124SIlya Dryomov { 151742c1b124SIlya Dryomov struct rb_node *n; 151842c1b124SIlya Dryomov 151942c1b124SIlya Dryomov for (n = rb_first(&osdc->osdmap->pg_pools); n; n = rb_next(n)) { 152042c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 152142c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 152242c1b124SIlya Dryomov 152342c1b124SIlya Dryomov if (__pool_full(pi)) 152442c1b124SIlya Dryomov return true; 152542c1b124SIlya Dryomov } 152642c1b124SIlya Dryomov 152742c1b124SIlya Dryomov return false; 152842c1b124SIlya Dryomov } 152942c1b124SIlya Dryomov 15305aea3dcdSIlya Dryomov static bool pool_full(struct ceph_osd_client *osdc, s64 pool_id) 15315aea3dcdSIlya Dryomov { 15325aea3dcdSIlya Dryomov struct ceph_pg_pool_info *pi; 15335aea3dcdSIlya Dryomov 15345aea3dcdSIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, pool_id); 15355aea3dcdSIlya Dryomov if (!pi) 15365aea3dcdSIlya Dryomov return false; 15375aea3dcdSIlya Dryomov 15385aea3dcdSIlya Dryomov return __pool_full(pi); 15395aea3dcdSIlya Dryomov } 15405aea3dcdSIlya Dryomov 15413d14c5d2SYehuda Sadeh /* 1542d29adb34SJosh Durgin * Returns whether a request should be blocked from being sent 1543d29adb34SJosh Durgin * based on the current osdmap and osd_client settings. 1544d29adb34SJosh Durgin */ 154563244fa1SIlya Dryomov static bool target_should_be_paused(struct ceph_osd_client *osdc, 154663244fa1SIlya Dryomov const struct ceph_osd_request_target *t, 154763244fa1SIlya Dryomov struct ceph_pg_pool_info *pi) 154863244fa1SIlya Dryomov { 1549b7ec35b3SIlya Dryomov bool pauserd = ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSERD); 1550b7ec35b3SIlya Dryomov bool pausewr = ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSEWR) || 1551b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || 155263244fa1SIlya Dryomov __pool_full(pi); 155363244fa1SIlya Dryomov 15546d637a54SIlya Dryomov WARN_ON(pi->id != t->target_oloc.pool); 155558eb7932SJeff Layton return ((t->flags & CEPH_OSD_FLAG_READ) && pauserd) || 155658eb7932SJeff Layton ((t->flags & CEPH_OSD_FLAG_WRITE) && pausewr) || 155758eb7932SJeff Layton (osdc->osdmap->epoch < osdc->epoch_barrier); 155863244fa1SIlya Dryomov } 155963244fa1SIlya Dryomov 1560117d96a0SIlya Dryomov static int pick_random_replica(const struct ceph_osds *acting) 1561117d96a0SIlya Dryomov { 15628032bf12SJason A. Donenfeld int i = get_random_u32_below(acting->size); 1563117d96a0SIlya Dryomov 1564117d96a0SIlya Dryomov dout("%s picked osd%d, primary osd%d\n", __func__, 1565117d96a0SIlya Dryomov acting->osds[i], acting->primary); 1566117d96a0SIlya Dryomov return i; 1567117d96a0SIlya Dryomov } 1568117d96a0SIlya Dryomov 1569117d96a0SIlya Dryomov /* 1570117d96a0SIlya Dryomov * Picks the closest replica based on client's location given by 1571117d96a0SIlya Dryomov * crush_location option. Prefers the primary if the locality is 1572117d96a0SIlya Dryomov * the same. 1573117d96a0SIlya Dryomov */ 1574117d96a0SIlya Dryomov static int pick_closest_replica(struct ceph_osd_client *osdc, 1575117d96a0SIlya Dryomov const struct ceph_osds *acting) 1576117d96a0SIlya Dryomov { 1577117d96a0SIlya Dryomov struct ceph_options *opt = osdc->client->options; 1578117d96a0SIlya Dryomov int best_i, best_locality; 1579117d96a0SIlya Dryomov int i = 0, locality; 1580117d96a0SIlya Dryomov 1581117d96a0SIlya Dryomov do { 1582117d96a0SIlya Dryomov locality = ceph_get_crush_locality(osdc->osdmap, 1583117d96a0SIlya Dryomov acting->osds[i], 1584117d96a0SIlya Dryomov &opt->crush_locs); 1585117d96a0SIlya Dryomov if (i == 0 || 1586117d96a0SIlya Dryomov (locality >= 0 && best_locality < 0) || 1587117d96a0SIlya Dryomov (locality >= 0 && best_locality >= 0 && 1588117d96a0SIlya Dryomov locality < best_locality)) { 1589117d96a0SIlya Dryomov best_i = i; 1590117d96a0SIlya Dryomov best_locality = locality; 1591117d96a0SIlya Dryomov } 1592117d96a0SIlya Dryomov } while (++i < acting->size); 1593117d96a0SIlya Dryomov 1594117d96a0SIlya Dryomov dout("%s picked osd%d with locality %d, primary osd%d\n", __func__, 1595117d96a0SIlya Dryomov acting->osds[best_i], best_locality, acting->primary); 1596117d96a0SIlya Dryomov return best_i; 1597117d96a0SIlya Dryomov } 1598117d96a0SIlya Dryomov 159963244fa1SIlya Dryomov enum calc_target_result { 160063244fa1SIlya Dryomov CALC_TARGET_NO_ACTION = 0, 160163244fa1SIlya Dryomov CALC_TARGET_NEED_RESEND, 160263244fa1SIlya Dryomov CALC_TARGET_POOL_DNE, 160363244fa1SIlya Dryomov }; 160463244fa1SIlya Dryomov 160563244fa1SIlya Dryomov static enum calc_target_result calc_target(struct ceph_osd_client *osdc, 160663244fa1SIlya Dryomov struct ceph_osd_request_target *t, 160763244fa1SIlya Dryomov bool any_change) 160863244fa1SIlya Dryomov { 160963244fa1SIlya Dryomov struct ceph_pg_pool_info *pi; 161063244fa1SIlya Dryomov struct ceph_pg pgid, last_pgid; 161163244fa1SIlya Dryomov struct ceph_osds up, acting; 1612117d96a0SIlya Dryomov bool is_read = t->flags & CEPH_OSD_FLAG_READ; 1613117d96a0SIlya Dryomov bool is_write = t->flags & CEPH_OSD_FLAG_WRITE; 161463244fa1SIlya Dryomov bool force_resend = false; 161584ed45dfSIlya Dryomov bool unpaused = false; 1616a5613724SIlya Dryomov bool legacy_change = false; 16177de030d6SIlya Dryomov bool split = false; 1618b7ec35b3SIlya Dryomov bool sort_bitwise = ceph_osdmap_flag(osdc, CEPH_OSDMAP_SORTBITWISE); 1619ae78dd81SIlya Dryomov bool recovery_deletes = ceph_osdmap_flag(osdc, 1620ae78dd81SIlya Dryomov CEPH_OSDMAP_RECOVERY_DELETES); 162163244fa1SIlya Dryomov enum calc_target_result ct_res; 162263244fa1SIlya Dryomov 162304c7d789SIlya Dryomov t->epoch = osdc->osdmap->epoch; 162463244fa1SIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, t->base_oloc.pool); 162563244fa1SIlya Dryomov if (!pi) { 162663244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 162763244fa1SIlya Dryomov ct_res = CALC_TARGET_POOL_DNE; 162863244fa1SIlya Dryomov goto out; 162963244fa1SIlya Dryomov } 163063244fa1SIlya Dryomov 163163244fa1SIlya Dryomov if (osdc->osdmap->epoch == pi->last_force_request_resend) { 1632dc93e0e2SIlya Dryomov if (t->last_force_resend < pi->last_force_request_resend) { 1633dc93e0e2SIlya Dryomov t->last_force_resend = pi->last_force_request_resend; 163463244fa1SIlya Dryomov force_resend = true; 1635dc93e0e2SIlya Dryomov } else if (t->last_force_resend == 0) { 163663244fa1SIlya Dryomov force_resend = true; 163763244fa1SIlya Dryomov } 163863244fa1SIlya Dryomov } 163963244fa1SIlya Dryomov 1640db098ec4SIlya Dryomov /* apply tiering */ 1641db098ec4SIlya Dryomov ceph_oid_copy(&t->target_oid, &t->base_oid); 1642db098ec4SIlya Dryomov ceph_oloc_copy(&t->target_oloc, &t->base_oloc); 1643db098ec4SIlya Dryomov if ((t->flags & CEPH_OSD_FLAG_IGNORE_OVERLAY) == 0) { 1644117d96a0SIlya Dryomov if (is_read && pi->read_tier >= 0) 164563244fa1SIlya Dryomov t->target_oloc.pool = pi->read_tier; 1646117d96a0SIlya Dryomov if (is_write && pi->write_tier >= 0) 164763244fa1SIlya Dryomov t->target_oloc.pool = pi->write_tier; 16486d637a54SIlya Dryomov 16496d637a54SIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, t->target_oloc.pool); 16506d637a54SIlya Dryomov if (!pi) { 16516d637a54SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 16526d637a54SIlya Dryomov ct_res = CALC_TARGET_POOL_DNE; 16536d637a54SIlya Dryomov goto out; 16546d637a54SIlya Dryomov } 165563244fa1SIlya Dryomov } 165663244fa1SIlya Dryomov 1657a86f009fSIlya Dryomov __ceph_object_locator_to_pg(pi, &t->target_oid, &t->target_oloc, &pgid); 165863244fa1SIlya Dryomov last_pgid.pool = pgid.pool; 165963244fa1SIlya Dryomov last_pgid.seed = ceph_stable_mod(pgid.seed, t->pg_num, t->pg_num_mask); 166063244fa1SIlya Dryomov 1661df28152dSIlya Dryomov ceph_pg_to_up_acting_osds(osdc->osdmap, pi, &pgid, &up, &acting); 166263244fa1SIlya Dryomov if (any_change && 166363244fa1SIlya Dryomov ceph_is_new_interval(&t->acting, 166463244fa1SIlya Dryomov &acting, 166563244fa1SIlya Dryomov &t->up, 166663244fa1SIlya Dryomov &up, 166763244fa1SIlya Dryomov t->size, 166863244fa1SIlya Dryomov pi->size, 166963244fa1SIlya Dryomov t->min_size, 167063244fa1SIlya Dryomov pi->min_size, 167163244fa1SIlya Dryomov t->pg_num, 167263244fa1SIlya Dryomov pi->pg_num, 167363244fa1SIlya Dryomov t->sort_bitwise, 167463244fa1SIlya Dryomov sort_bitwise, 1675ae78dd81SIlya Dryomov t->recovery_deletes, 1676ae78dd81SIlya Dryomov recovery_deletes, 167763244fa1SIlya Dryomov &last_pgid)) 167863244fa1SIlya Dryomov force_resend = true; 167963244fa1SIlya Dryomov 168063244fa1SIlya Dryomov if (t->paused && !target_should_be_paused(osdc, t, pi)) { 168163244fa1SIlya Dryomov t->paused = false; 168284ed45dfSIlya Dryomov unpaused = true; 168363244fa1SIlya Dryomov } 168484ed45dfSIlya Dryomov legacy_change = ceph_pg_compare(&t->pgid, &pgid) || 1685117d96a0SIlya Dryomov ceph_osds_changed(&t->acting, &acting, 1686117d96a0SIlya Dryomov t->used_replica || any_change); 16877de030d6SIlya Dryomov if (t->pg_num) 16887de030d6SIlya Dryomov split = ceph_pg_is_split(&last_pgid, t->pg_num, pi->pg_num); 168963244fa1SIlya Dryomov 16907de030d6SIlya Dryomov if (legacy_change || force_resend || split) { 169163244fa1SIlya Dryomov t->pgid = pgid; /* struct */ 1692df28152dSIlya Dryomov ceph_pg_to_primary_shard(osdc->osdmap, pi, &pgid, &t->spgid); 169363244fa1SIlya Dryomov ceph_osds_copy(&t->acting, &acting); 169463244fa1SIlya Dryomov ceph_osds_copy(&t->up, &up); 169563244fa1SIlya Dryomov t->size = pi->size; 169663244fa1SIlya Dryomov t->min_size = pi->min_size; 169763244fa1SIlya Dryomov t->pg_num = pi->pg_num; 169863244fa1SIlya Dryomov t->pg_num_mask = pi->pg_num_mask; 169963244fa1SIlya Dryomov t->sort_bitwise = sort_bitwise; 1700ae78dd81SIlya Dryomov t->recovery_deletes = recovery_deletes; 170163244fa1SIlya Dryomov 1702117d96a0SIlya Dryomov if ((t->flags & (CEPH_OSD_FLAG_BALANCE_READS | 1703117d96a0SIlya Dryomov CEPH_OSD_FLAG_LOCALIZE_READS)) && 1704117d96a0SIlya Dryomov !is_write && pi->type == CEPH_POOL_TYPE_REP && 1705117d96a0SIlya Dryomov acting.size > 1) { 1706117d96a0SIlya Dryomov int pos; 1707117d96a0SIlya Dryomov 1708117d96a0SIlya Dryomov WARN_ON(!is_read || acting.osds[0] != acting.primary); 1709117d96a0SIlya Dryomov if (t->flags & CEPH_OSD_FLAG_BALANCE_READS) { 1710117d96a0SIlya Dryomov pos = pick_random_replica(&acting); 1711117d96a0SIlya Dryomov } else { 1712117d96a0SIlya Dryomov pos = pick_closest_replica(osdc, &acting); 1713117d96a0SIlya Dryomov } 1714117d96a0SIlya Dryomov t->osd = acting.osds[pos]; 1715117d96a0SIlya Dryomov t->used_replica = pos > 0; 1716117d96a0SIlya Dryomov } else { 171763244fa1SIlya Dryomov t->osd = acting.primary; 1718117d96a0SIlya Dryomov t->used_replica = false; 1719117d96a0SIlya Dryomov } 172063244fa1SIlya Dryomov } 172163244fa1SIlya Dryomov 1722a5613724SIlya Dryomov if (unpaused || legacy_change || force_resend || split) 172384ed45dfSIlya Dryomov ct_res = CALC_TARGET_NEED_RESEND; 172484ed45dfSIlya Dryomov else 172584ed45dfSIlya Dryomov ct_res = CALC_TARGET_NO_ACTION; 172684ed45dfSIlya Dryomov 172763244fa1SIlya Dryomov out: 1728a5613724SIlya Dryomov dout("%s t %p -> %d%d%d%d ct_res %d osd%d\n", __func__, t, unpaused, 1729a5613724SIlya Dryomov legacy_change, force_resend, split, ct_res, t->osd); 173063244fa1SIlya Dryomov return ct_res; 173163244fa1SIlya Dryomov } 173263244fa1SIlya Dryomov 1733a02a946dSIlya Dryomov static struct ceph_spg_mapping *alloc_spg_mapping(void) 1734a02a946dSIlya Dryomov { 1735a02a946dSIlya Dryomov struct ceph_spg_mapping *spg; 1736a02a946dSIlya Dryomov 1737a02a946dSIlya Dryomov spg = kmalloc(sizeof(*spg), GFP_NOIO); 1738a02a946dSIlya Dryomov if (!spg) 1739a02a946dSIlya Dryomov return NULL; 1740a02a946dSIlya Dryomov 1741a02a946dSIlya Dryomov RB_CLEAR_NODE(&spg->node); 1742a02a946dSIlya Dryomov spg->backoffs = RB_ROOT; 1743a02a946dSIlya Dryomov return spg; 1744a02a946dSIlya Dryomov } 1745a02a946dSIlya Dryomov 1746a02a946dSIlya Dryomov static void free_spg_mapping(struct ceph_spg_mapping *spg) 1747a02a946dSIlya Dryomov { 1748a02a946dSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&spg->node)); 1749a02a946dSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&spg->backoffs)); 1750a02a946dSIlya Dryomov 1751a02a946dSIlya Dryomov kfree(spg); 1752a02a946dSIlya Dryomov } 1753a02a946dSIlya Dryomov 1754a02a946dSIlya Dryomov /* 1755a02a946dSIlya Dryomov * rbtree of ceph_spg_mapping for handling map<spg_t, ...>, similar to 1756a02a946dSIlya Dryomov * ceph_pg_mapping. Used to track OSD backoffs -- a backoff [range] is 1757a02a946dSIlya Dryomov * defined only within a specific spgid; it does not pass anything to 1758a02a946dSIlya Dryomov * children on split, or to another primary. 1759a02a946dSIlya Dryomov */ 1760a02a946dSIlya Dryomov DEFINE_RB_FUNCS2(spg_mapping, struct ceph_spg_mapping, spgid, ceph_spg_compare, 1761a02a946dSIlya Dryomov RB_BYPTR, const struct ceph_spg *, node) 1762a02a946dSIlya Dryomov 1763a02a946dSIlya Dryomov static u64 hoid_get_bitwise_key(const struct ceph_hobject_id *hoid) 1764a02a946dSIlya Dryomov { 1765a02a946dSIlya Dryomov return hoid->is_max ? 0x100000000ull : hoid->hash_reverse_bits; 1766a02a946dSIlya Dryomov } 1767a02a946dSIlya Dryomov 1768a02a946dSIlya Dryomov static void hoid_get_effective_key(const struct ceph_hobject_id *hoid, 1769a02a946dSIlya Dryomov void **pkey, size_t *pkey_len) 1770a02a946dSIlya Dryomov { 1771a02a946dSIlya Dryomov if (hoid->key_len) { 1772a02a946dSIlya Dryomov *pkey = hoid->key; 1773a02a946dSIlya Dryomov *pkey_len = hoid->key_len; 1774a02a946dSIlya Dryomov } else { 1775a02a946dSIlya Dryomov *pkey = hoid->oid; 1776a02a946dSIlya Dryomov *pkey_len = hoid->oid_len; 1777a02a946dSIlya Dryomov } 1778a02a946dSIlya Dryomov } 1779a02a946dSIlya Dryomov 1780a02a946dSIlya Dryomov static int compare_names(const void *name1, size_t name1_len, 1781a02a946dSIlya Dryomov const void *name2, size_t name2_len) 1782a02a946dSIlya Dryomov { 1783a02a946dSIlya Dryomov int ret; 1784a02a946dSIlya Dryomov 1785a02a946dSIlya Dryomov ret = memcmp(name1, name2, min(name1_len, name2_len)); 1786a02a946dSIlya Dryomov if (!ret) { 1787a02a946dSIlya Dryomov if (name1_len < name2_len) 1788a02a946dSIlya Dryomov ret = -1; 1789a02a946dSIlya Dryomov else if (name1_len > name2_len) 1790a02a946dSIlya Dryomov ret = 1; 1791a02a946dSIlya Dryomov } 1792a02a946dSIlya Dryomov return ret; 1793a02a946dSIlya Dryomov } 1794a02a946dSIlya Dryomov 1795a02a946dSIlya Dryomov static int hoid_compare(const struct ceph_hobject_id *lhs, 1796a02a946dSIlya Dryomov const struct ceph_hobject_id *rhs) 1797a02a946dSIlya Dryomov { 1798a02a946dSIlya Dryomov void *effective_key1, *effective_key2; 1799a02a946dSIlya Dryomov size_t effective_key1_len, effective_key2_len; 1800a02a946dSIlya Dryomov int ret; 1801a02a946dSIlya Dryomov 1802a02a946dSIlya Dryomov if (lhs->is_max < rhs->is_max) 1803a02a946dSIlya Dryomov return -1; 1804a02a946dSIlya Dryomov if (lhs->is_max > rhs->is_max) 1805a02a946dSIlya Dryomov return 1; 1806a02a946dSIlya Dryomov 1807a02a946dSIlya Dryomov if (lhs->pool < rhs->pool) 1808a02a946dSIlya Dryomov return -1; 1809a02a946dSIlya Dryomov if (lhs->pool > rhs->pool) 1810a02a946dSIlya Dryomov return 1; 1811a02a946dSIlya Dryomov 1812a02a946dSIlya Dryomov if (hoid_get_bitwise_key(lhs) < hoid_get_bitwise_key(rhs)) 1813a02a946dSIlya Dryomov return -1; 1814a02a946dSIlya Dryomov if (hoid_get_bitwise_key(lhs) > hoid_get_bitwise_key(rhs)) 1815a02a946dSIlya Dryomov return 1; 1816a02a946dSIlya Dryomov 1817a02a946dSIlya Dryomov ret = compare_names(lhs->nspace, lhs->nspace_len, 1818a02a946dSIlya Dryomov rhs->nspace, rhs->nspace_len); 1819a02a946dSIlya Dryomov if (ret) 1820a02a946dSIlya Dryomov return ret; 1821a02a946dSIlya Dryomov 1822a02a946dSIlya Dryomov hoid_get_effective_key(lhs, &effective_key1, &effective_key1_len); 1823a02a946dSIlya Dryomov hoid_get_effective_key(rhs, &effective_key2, &effective_key2_len); 1824a02a946dSIlya Dryomov ret = compare_names(effective_key1, effective_key1_len, 1825a02a946dSIlya Dryomov effective_key2, effective_key2_len); 1826a02a946dSIlya Dryomov if (ret) 1827a02a946dSIlya Dryomov return ret; 1828a02a946dSIlya Dryomov 1829a02a946dSIlya Dryomov ret = compare_names(lhs->oid, lhs->oid_len, rhs->oid, rhs->oid_len); 1830a02a946dSIlya Dryomov if (ret) 1831a02a946dSIlya Dryomov return ret; 1832a02a946dSIlya Dryomov 1833a02a946dSIlya Dryomov if (lhs->snapid < rhs->snapid) 1834a02a946dSIlya Dryomov return -1; 1835a02a946dSIlya Dryomov if (lhs->snapid > rhs->snapid) 1836a02a946dSIlya Dryomov return 1; 1837a02a946dSIlya Dryomov 1838a02a946dSIlya Dryomov return 0; 1839a02a946dSIlya Dryomov } 1840a02a946dSIlya Dryomov 1841a02a946dSIlya Dryomov /* 1842a02a946dSIlya Dryomov * For decoding ->begin and ->end of MOSDBackoff only -- no MIN/MAX 1843a02a946dSIlya Dryomov * compat stuff here. 1844a02a946dSIlya Dryomov * 1845a02a946dSIlya Dryomov * Assumes @hoid is zero-initialized. 1846a02a946dSIlya Dryomov */ 1847a02a946dSIlya Dryomov static int decode_hoid(void **p, void *end, struct ceph_hobject_id *hoid) 1848a02a946dSIlya Dryomov { 1849a02a946dSIlya Dryomov u8 struct_v; 1850a02a946dSIlya Dryomov u32 struct_len; 1851a02a946dSIlya Dryomov int ret; 1852a02a946dSIlya Dryomov 1853a02a946dSIlya Dryomov ret = ceph_start_decoding(p, end, 4, "hobject_t", &struct_v, 1854a02a946dSIlya Dryomov &struct_len); 1855a02a946dSIlya Dryomov if (ret) 1856a02a946dSIlya Dryomov return ret; 1857a02a946dSIlya Dryomov 1858a02a946dSIlya Dryomov if (struct_v < 4) { 1859a02a946dSIlya Dryomov pr_err("got struct_v %d < 4 of hobject_t\n", struct_v); 1860a02a946dSIlya Dryomov goto e_inval; 1861a02a946dSIlya Dryomov } 1862a02a946dSIlya Dryomov 1863a02a946dSIlya Dryomov hoid->key = ceph_extract_encoded_string(p, end, &hoid->key_len, 1864a02a946dSIlya Dryomov GFP_NOIO); 1865a02a946dSIlya Dryomov if (IS_ERR(hoid->key)) { 1866a02a946dSIlya Dryomov ret = PTR_ERR(hoid->key); 1867a02a946dSIlya Dryomov hoid->key = NULL; 1868a02a946dSIlya Dryomov return ret; 1869a02a946dSIlya Dryomov } 1870a02a946dSIlya Dryomov 1871a02a946dSIlya Dryomov hoid->oid = ceph_extract_encoded_string(p, end, &hoid->oid_len, 1872a02a946dSIlya Dryomov GFP_NOIO); 1873a02a946dSIlya Dryomov if (IS_ERR(hoid->oid)) { 1874a02a946dSIlya Dryomov ret = PTR_ERR(hoid->oid); 1875a02a946dSIlya Dryomov hoid->oid = NULL; 1876a02a946dSIlya Dryomov return ret; 1877a02a946dSIlya Dryomov } 1878a02a946dSIlya Dryomov 1879a02a946dSIlya Dryomov ceph_decode_64_safe(p, end, hoid->snapid, e_inval); 1880a02a946dSIlya Dryomov ceph_decode_32_safe(p, end, hoid->hash, e_inval); 1881a02a946dSIlya Dryomov ceph_decode_8_safe(p, end, hoid->is_max, e_inval); 1882a02a946dSIlya Dryomov 1883a02a946dSIlya Dryomov hoid->nspace = ceph_extract_encoded_string(p, end, &hoid->nspace_len, 1884a02a946dSIlya Dryomov GFP_NOIO); 1885a02a946dSIlya Dryomov if (IS_ERR(hoid->nspace)) { 1886a02a946dSIlya Dryomov ret = PTR_ERR(hoid->nspace); 1887a02a946dSIlya Dryomov hoid->nspace = NULL; 1888a02a946dSIlya Dryomov return ret; 1889a02a946dSIlya Dryomov } 1890a02a946dSIlya Dryomov 1891a02a946dSIlya Dryomov ceph_decode_64_safe(p, end, hoid->pool, e_inval); 1892a02a946dSIlya Dryomov 1893a02a946dSIlya Dryomov ceph_hoid_build_hash_cache(hoid); 1894a02a946dSIlya Dryomov return 0; 1895a02a946dSIlya Dryomov 1896a02a946dSIlya Dryomov e_inval: 1897a02a946dSIlya Dryomov return -EINVAL; 1898a02a946dSIlya Dryomov } 1899a02a946dSIlya Dryomov 1900a02a946dSIlya Dryomov static int hoid_encoding_size(const struct ceph_hobject_id *hoid) 1901a02a946dSIlya Dryomov { 1902a02a946dSIlya Dryomov return 8 + 4 + 1 + 8 + /* snapid, hash, is_max, pool */ 1903a02a946dSIlya Dryomov 4 + hoid->key_len + 4 + hoid->oid_len + 4 + hoid->nspace_len; 1904a02a946dSIlya Dryomov } 1905a02a946dSIlya Dryomov 1906a02a946dSIlya Dryomov static void encode_hoid(void **p, void *end, const struct ceph_hobject_id *hoid) 1907a02a946dSIlya Dryomov { 1908a02a946dSIlya Dryomov ceph_start_encoding(p, 4, 3, hoid_encoding_size(hoid)); 1909a02a946dSIlya Dryomov ceph_encode_string(p, end, hoid->key, hoid->key_len); 1910a02a946dSIlya Dryomov ceph_encode_string(p, end, hoid->oid, hoid->oid_len); 1911a02a946dSIlya Dryomov ceph_encode_64(p, hoid->snapid); 1912a02a946dSIlya Dryomov ceph_encode_32(p, hoid->hash); 1913a02a946dSIlya Dryomov ceph_encode_8(p, hoid->is_max); 1914a02a946dSIlya Dryomov ceph_encode_string(p, end, hoid->nspace, hoid->nspace_len); 1915a02a946dSIlya Dryomov ceph_encode_64(p, hoid->pool); 1916a02a946dSIlya Dryomov } 1917a02a946dSIlya Dryomov 1918a02a946dSIlya Dryomov static void free_hoid(struct ceph_hobject_id *hoid) 1919a02a946dSIlya Dryomov { 1920a02a946dSIlya Dryomov if (hoid) { 1921a02a946dSIlya Dryomov kfree(hoid->key); 1922a02a946dSIlya Dryomov kfree(hoid->oid); 1923a02a946dSIlya Dryomov kfree(hoid->nspace); 1924a02a946dSIlya Dryomov kfree(hoid); 1925a02a946dSIlya Dryomov } 1926a02a946dSIlya Dryomov } 1927a02a946dSIlya Dryomov 1928a02a946dSIlya Dryomov static struct ceph_osd_backoff *alloc_backoff(void) 1929a02a946dSIlya Dryomov { 1930a02a946dSIlya Dryomov struct ceph_osd_backoff *backoff; 1931a02a946dSIlya Dryomov 1932a02a946dSIlya Dryomov backoff = kzalloc(sizeof(*backoff), GFP_NOIO); 1933a02a946dSIlya Dryomov if (!backoff) 1934a02a946dSIlya Dryomov return NULL; 1935a02a946dSIlya Dryomov 1936a02a946dSIlya Dryomov RB_CLEAR_NODE(&backoff->spg_node); 1937a02a946dSIlya Dryomov RB_CLEAR_NODE(&backoff->id_node); 1938a02a946dSIlya Dryomov return backoff; 1939a02a946dSIlya Dryomov } 1940a02a946dSIlya Dryomov 1941a02a946dSIlya Dryomov static void free_backoff(struct ceph_osd_backoff *backoff) 1942a02a946dSIlya Dryomov { 1943a02a946dSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&backoff->spg_node)); 1944a02a946dSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&backoff->id_node)); 1945a02a946dSIlya Dryomov 1946a02a946dSIlya Dryomov free_hoid(backoff->begin); 1947a02a946dSIlya Dryomov free_hoid(backoff->end); 1948a02a946dSIlya Dryomov kfree(backoff); 1949a02a946dSIlya Dryomov } 1950a02a946dSIlya Dryomov 1951a02a946dSIlya Dryomov /* 1952a02a946dSIlya Dryomov * Within a specific spgid, backoffs are managed by ->begin hoid. 1953a02a946dSIlya Dryomov */ 1954a02a946dSIlya Dryomov DEFINE_RB_INSDEL_FUNCS2(backoff, struct ceph_osd_backoff, begin, hoid_compare, 1955a02a946dSIlya Dryomov RB_BYVAL, spg_node); 1956a02a946dSIlya Dryomov 1957a02a946dSIlya Dryomov static struct ceph_osd_backoff *lookup_containing_backoff(struct rb_root *root, 1958a02a946dSIlya Dryomov const struct ceph_hobject_id *hoid) 1959a02a946dSIlya Dryomov { 1960a02a946dSIlya Dryomov struct rb_node *n = root->rb_node; 1961a02a946dSIlya Dryomov 1962a02a946dSIlya Dryomov while (n) { 1963a02a946dSIlya Dryomov struct ceph_osd_backoff *cur = 1964a02a946dSIlya Dryomov rb_entry(n, struct ceph_osd_backoff, spg_node); 1965a02a946dSIlya Dryomov int cmp; 1966a02a946dSIlya Dryomov 1967a02a946dSIlya Dryomov cmp = hoid_compare(hoid, cur->begin); 1968a02a946dSIlya Dryomov if (cmp < 0) { 1969a02a946dSIlya Dryomov n = n->rb_left; 1970a02a946dSIlya Dryomov } else if (cmp > 0) { 1971a02a946dSIlya Dryomov if (hoid_compare(hoid, cur->end) < 0) 1972a02a946dSIlya Dryomov return cur; 1973a02a946dSIlya Dryomov 1974a02a946dSIlya Dryomov n = n->rb_right; 1975a02a946dSIlya Dryomov } else { 1976a02a946dSIlya Dryomov return cur; 1977a02a946dSIlya Dryomov } 1978a02a946dSIlya Dryomov } 1979a02a946dSIlya Dryomov 1980a02a946dSIlya Dryomov return NULL; 1981a02a946dSIlya Dryomov } 1982a02a946dSIlya Dryomov 1983a02a946dSIlya Dryomov /* 1984a02a946dSIlya Dryomov * Each backoff has a unique id within its OSD session. 1985a02a946dSIlya Dryomov */ 1986a02a946dSIlya Dryomov DEFINE_RB_FUNCS(backoff_by_id, struct ceph_osd_backoff, id, id_node) 1987a02a946dSIlya Dryomov 1988a02a946dSIlya Dryomov static void clear_backoffs(struct ceph_osd *osd) 1989a02a946dSIlya Dryomov { 1990a02a946dSIlya Dryomov while (!RB_EMPTY_ROOT(&osd->o_backoff_mappings)) { 1991a02a946dSIlya Dryomov struct ceph_spg_mapping *spg = 1992a02a946dSIlya Dryomov rb_entry(rb_first(&osd->o_backoff_mappings), 1993a02a946dSIlya Dryomov struct ceph_spg_mapping, node); 1994a02a946dSIlya Dryomov 1995a02a946dSIlya Dryomov while (!RB_EMPTY_ROOT(&spg->backoffs)) { 1996a02a946dSIlya Dryomov struct ceph_osd_backoff *backoff = 1997a02a946dSIlya Dryomov rb_entry(rb_first(&spg->backoffs), 1998a02a946dSIlya Dryomov struct ceph_osd_backoff, spg_node); 1999a02a946dSIlya Dryomov 2000a02a946dSIlya Dryomov erase_backoff(&spg->backoffs, backoff); 2001a02a946dSIlya Dryomov erase_backoff_by_id(&osd->o_backoffs_by_id, backoff); 2002a02a946dSIlya Dryomov free_backoff(backoff); 2003a02a946dSIlya Dryomov } 2004a02a946dSIlya Dryomov erase_spg_mapping(&osd->o_backoff_mappings, spg); 2005a02a946dSIlya Dryomov free_spg_mapping(spg); 2006a02a946dSIlya Dryomov } 2007a02a946dSIlya Dryomov } 2008a02a946dSIlya Dryomov 2009a02a946dSIlya Dryomov /* 2010a02a946dSIlya Dryomov * Set up a temporary, non-owning view into @t. 2011a02a946dSIlya Dryomov */ 2012a02a946dSIlya Dryomov static void hoid_fill_from_target(struct ceph_hobject_id *hoid, 2013a02a946dSIlya Dryomov const struct ceph_osd_request_target *t) 2014a02a946dSIlya Dryomov { 2015a02a946dSIlya Dryomov hoid->key = NULL; 2016a02a946dSIlya Dryomov hoid->key_len = 0; 2017a02a946dSIlya Dryomov hoid->oid = t->target_oid.name; 2018a02a946dSIlya Dryomov hoid->oid_len = t->target_oid.name_len; 2019a02a946dSIlya Dryomov hoid->snapid = CEPH_NOSNAP; 2020a02a946dSIlya Dryomov hoid->hash = t->pgid.seed; 2021a02a946dSIlya Dryomov hoid->is_max = false; 2022a02a946dSIlya Dryomov if (t->target_oloc.pool_ns) { 2023a02a946dSIlya Dryomov hoid->nspace = t->target_oloc.pool_ns->str; 2024a02a946dSIlya Dryomov hoid->nspace_len = t->target_oloc.pool_ns->len; 2025a02a946dSIlya Dryomov } else { 2026a02a946dSIlya Dryomov hoid->nspace = NULL; 2027a02a946dSIlya Dryomov hoid->nspace_len = 0; 2028a02a946dSIlya Dryomov } 2029a02a946dSIlya Dryomov hoid->pool = t->target_oloc.pool; 2030a02a946dSIlya Dryomov ceph_hoid_build_hash_cache(hoid); 2031a02a946dSIlya Dryomov } 2032a02a946dSIlya Dryomov 2033a02a946dSIlya Dryomov static bool should_plug_request(struct ceph_osd_request *req) 2034a02a946dSIlya Dryomov { 2035a02a946dSIlya Dryomov struct ceph_osd *osd = req->r_osd; 2036a02a946dSIlya Dryomov struct ceph_spg_mapping *spg; 2037a02a946dSIlya Dryomov struct ceph_osd_backoff *backoff; 2038a02a946dSIlya Dryomov struct ceph_hobject_id hoid; 2039a02a946dSIlya Dryomov 2040a02a946dSIlya Dryomov spg = lookup_spg_mapping(&osd->o_backoff_mappings, &req->r_t.spgid); 2041a02a946dSIlya Dryomov if (!spg) 2042a02a946dSIlya Dryomov return false; 2043a02a946dSIlya Dryomov 2044a02a946dSIlya Dryomov hoid_fill_from_target(&hoid, &req->r_t); 2045a02a946dSIlya Dryomov backoff = lookup_containing_backoff(&spg->backoffs, &hoid); 2046a02a946dSIlya Dryomov if (!backoff) 2047a02a946dSIlya Dryomov return false; 2048a02a946dSIlya Dryomov 2049a02a946dSIlya Dryomov dout("%s req %p tid %llu backoff osd%d spgid %llu.%xs%d id %llu\n", 2050a02a946dSIlya Dryomov __func__, req, req->r_tid, osd->o_osd, backoff->spgid.pgid.pool, 2051a02a946dSIlya Dryomov backoff->spgid.pgid.seed, backoff->spgid.shard, backoff->id); 2052a02a946dSIlya Dryomov return true; 2053a02a946dSIlya Dryomov } 2054a02a946dSIlya Dryomov 20550d9c1ab3SIlya Dryomov /* 20560d9c1ab3SIlya Dryomov * Keep get_num_data_items() in sync with this function. 20570d9c1ab3SIlya Dryomov */ 205898c4bfe9SIlya Dryomov static void setup_request_data(struct ceph_osd_request *req) 20593d14c5d2SYehuda Sadeh { 206098c4bfe9SIlya Dryomov struct ceph_msg *request_msg = req->r_request; 206198c4bfe9SIlya Dryomov struct ceph_msg *reply_msg = req->r_reply; 206298c4bfe9SIlya Dryomov struct ceph_osd_req_op *op; 20633d14c5d2SYehuda Sadeh 206498c4bfe9SIlya Dryomov if (req->r_request->num_data_items || req->r_reply->num_data_items) 2065bb873b53SIlya Dryomov return; 20663d14c5d2SYehuda Sadeh 206798c4bfe9SIlya Dryomov WARN_ON(request_msg->data_length || reply_msg->data_length); 206898c4bfe9SIlya Dryomov for (op = req->r_ops; op != &req->r_ops[req->r_num_ops]; op++) { 2069bb873b53SIlya Dryomov switch (op->op) { 2070bb873b53SIlya Dryomov /* request */ 2071bb873b53SIlya Dryomov case CEPH_OSD_OP_WRITE: 2072bb873b53SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 2073bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->extent.length); 207498c4bfe9SIlya Dryomov ceph_osdc_msg_data_add(request_msg, 207598c4bfe9SIlya Dryomov &op->extent.osd_data); 2076bb873b53SIlya Dryomov break; 2077bb873b53SIlya Dryomov case CEPH_OSD_OP_SETXATTR: 2078bb873b53SIlya Dryomov case CEPH_OSD_OP_CMPXATTR: 2079bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->xattr.name_len + 2080bb873b53SIlya Dryomov op->xattr.value_len); 208198c4bfe9SIlya Dryomov ceph_osdc_msg_data_add(request_msg, 208298c4bfe9SIlya Dryomov &op->xattr.osd_data); 2083bb873b53SIlya Dryomov break; 2084922dab61SIlya Dryomov case CEPH_OSD_OP_NOTIFY_ACK: 208598c4bfe9SIlya Dryomov ceph_osdc_msg_data_add(request_msg, 2086922dab61SIlya Dryomov &op->notify_ack.request_data); 2087922dab61SIlya Dryomov break; 208878beb0ffSLuis Henriques case CEPH_OSD_OP_COPY_FROM2: 208923ddf9beSLuis Henriques ceph_osdc_msg_data_add(request_msg, 209023ddf9beSLuis Henriques &op->copy_from.osd_data); 209123ddf9beSLuis Henriques break; 2092bb873b53SIlya Dryomov 2093bb873b53SIlya Dryomov /* reply */ 2094bb873b53SIlya Dryomov case CEPH_OSD_OP_STAT: 209598c4bfe9SIlya Dryomov ceph_osdc_msg_data_add(reply_msg, 2096bb873b53SIlya Dryomov &op->raw_data_in); 2097bb873b53SIlya Dryomov break; 2098bb873b53SIlya Dryomov case CEPH_OSD_OP_READ: 2099f628d799SJeff Layton case CEPH_OSD_OP_SPARSE_READ: 210098c4bfe9SIlya Dryomov ceph_osdc_msg_data_add(reply_msg, 2101bb873b53SIlya Dryomov &op->extent.osd_data); 2102bb873b53SIlya Dryomov break; 2103a4ed38d7SDouglas Fuller case CEPH_OSD_OP_LIST_WATCHERS: 210498c4bfe9SIlya Dryomov ceph_osdc_msg_data_add(reply_msg, 2105a4ed38d7SDouglas Fuller &op->list_watchers.response_data); 2106a4ed38d7SDouglas Fuller break; 2107bb873b53SIlya Dryomov 2108bb873b53SIlya Dryomov /* both */ 2109bb873b53SIlya Dryomov case CEPH_OSD_OP_CALL: 2110bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->cls.class_len + 2111bb873b53SIlya Dryomov op->cls.method_len + 2112bb873b53SIlya Dryomov op->cls.indata_len); 211398c4bfe9SIlya Dryomov ceph_osdc_msg_data_add(request_msg, 211498c4bfe9SIlya Dryomov &op->cls.request_info); 2115bb873b53SIlya Dryomov /* optional, can be NONE */ 211698c4bfe9SIlya Dryomov ceph_osdc_msg_data_add(request_msg, 211798c4bfe9SIlya Dryomov &op->cls.request_data); 2118bb873b53SIlya Dryomov /* optional, can be NONE */ 211998c4bfe9SIlya Dryomov ceph_osdc_msg_data_add(reply_msg, 2120bb873b53SIlya Dryomov &op->cls.response_data); 2121bb873b53SIlya Dryomov break; 212219079203SIlya Dryomov case CEPH_OSD_OP_NOTIFY: 212398c4bfe9SIlya Dryomov ceph_osdc_msg_data_add(request_msg, 212419079203SIlya Dryomov &op->notify.request_data); 212598c4bfe9SIlya Dryomov ceph_osdc_msg_data_add(reply_msg, 212619079203SIlya Dryomov &op->notify.response_data); 212719079203SIlya Dryomov break; 2128bb873b53SIlya Dryomov } 2129bb873b53SIlya Dryomov } 2130bb873b53SIlya Dryomov } 2131bb873b53SIlya Dryomov 21322e59ffd1SIlya Dryomov static void encode_pgid(void **p, const struct ceph_pg *pgid) 21332e59ffd1SIlya Dryomov { 21342e59ffd1SIlya Dryomov ceph_encode_8(p, 1); 21352e59ffd1SIlya Dryomov ceph_encode_64(p, pgid->pool); 21362e59ffd1SIlya Dryomov ceph_encode_32(p, pgid->seed); 21372e59ffd1SIlya Dryomov ceph_encode_32(p, -1); /* preferred */ 21382e59ffd1SIlya Dryomov } 21392e59ffd1SIlya Dryomov 21408cb441c0SIlya Dryomov static void encode_spgid(void **p, const struct ceph_spg *spgid) 21418cb441c0SIlya Dryomov { 21428cb441c0SIlya Dryomov ceph_start_encoding(p, 1, 1, CEPH_PGID_ENCODING_LEN + 1); 21438cb441c0SIlya Dryomov encode_pgid(p, &spgid->pgid); 21448cb441c0SIlya Dryomov ceph_encode_8(p, spgid->shard); 21458cb441c0SIlya Dryomov } 21468cb441c0SIlya Dryomov 21472e59ffd1SIlya Dryomov static void encode_oloc(void **p, void *end, 21482e59ffd1SIlya Dryomov const struct ceph_object_locator *oloc) 21492e59ffd1SIlya Dryomov { 21502e59ffd1SIlya Dryomov ceph_start_encoding(p, 5, 4, ceph_oloc_encoding_size(oloc)); 21512e59ffd1SIlya Dryomov ceph_encode_64(p, oloc->pool); 21522e59ffd1SIlya Dryomov ceph_encode_32(p, -1); /* preferred */ 21532e59ffd1SIlya Dryomov ceph_encode_32(p, 0); /* key len */ 21542e59ffd1SIlya Dryomov if (oloc->pool_ns) 21552e59ffd1SIlya Dryomov ceph_encode_string(p, end, oloc->pool_ns->str, 21562e59ffd1SIlya Dryomov oloc->pool_ns->len); 21572e59ffd1SIlya Dryomov else 21582e59ffd1SIlya Dryomov ceph_encode_32(p, 0); 21592e59ffd1SIlya Dryomov } 21602e59ffd1SIlya Dryomov 21618cb441c0SIlya Dryomov static void encode_request_partial(struct ceph_osd_request *req, 21628cb441c0SIlya Dryomov struct ceph_msg *msg) 2163bb873b53SIlya Dryomov { 2164bb873b53SIlya Dryomov void *p = msg->front.iov_base; 2165bb873b53SIlya Dryomov void *const end = p + msg->front_alloc_len; 2166bb873b53SIlya Dryomov u32 data_len = 0; 2167bb873b53SIlya Dryomov int i; 2168bb873b53SIlya Dryomov 2169bb873b53SIlya Dryomov if (req->r_flags & CEPH_OSD_FLAG_WRITE) { 2170bb873b53SIlya Dryomov /* snapshots aren't writeable */ 2171bb873b53SIlya Dryomov WARN_ON(req->r_snapid != CEPH_NOSNAP); 2172bb873b53SIlya Dryomov } else { 2173bb873b53SIlya Dryomov WARN_ON(req->r_mtime.tv_sec || req->r_mtime.tv_nsec || 2174bb873b53SIlya Dryomov req->r_data_offset || req->r_snapc); 2175bb873b53SIlya Dryomov } 2176bb873b53SIlya Dryomov 217798c4bfe9SIlya Dryomov setup_request_data(req); 2178bb873b53SIlya Dryomov 21798cb441c0SIlya Dryomov encode_spgid(&p, &req->r_t.spgid); /* actual spg */ 21808cb441c0SIlya Dryomov ceph_encode_32(&p, req->r_t.pgid.seed); /* raw hash */ 2181bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_osdc->osdmap->epoch); 2182bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_flags); 21838cb441c0SIlya Dryomov 21848cb441c0SIlya Dryomov /* reqid */ 21858cb441c0SIlya Dryomov ceph_start_encoding(&p, 2, 2, sizeof(struct ceph_osd_reqid)); 21868cb441c0SIlya Dryomov memset(p, 0, sizeof(struct ceph_osd_reqid)); 21878cb441c0SIlya Dryomov p += sizeof(struct ceph_osd_reqid); 21888cb441c0SIlya Dryomov 21898cb441c0SIlya Dryomov /* trace */ 21908cb441c0SIlya Dryomov memset(p, 0, sizeof(struct ceph_blkin_trace_info)); 21918cb441c0SIlya Dryomov p += sizeof(struct ceph_blkin_trace_info); 21928cb441c0SIlya Dryomov 21938cb441c0SIlya Dryomov ceph_encode_32(&p, 0); /* client_inc, always 0 */ 2194fac02ddfSArnd Bergmann ceph_encode_timespec64(p, &req->r_mtime); 2195bb873b53SIlya Dryomov p += sizeof(struct ceph_timespec); 2196aa26d662SJeff Layton 21972e59ffd1SIlya Dryomov encode_oloc(&p, end, &req->r_t.target_oloc); 21982e59ffd1SIlya Dryomov ceph_encode_string(&p, end, req->r_t.target_oid.name, 21992e59ffd1SIlya Dryomov req->r_t.target_oid.name_len); 2200bb873b53SIlya Dryomov 2201bb873b53SIlya Dryomov /* ops, can imply data */ 2202bb873b53SIlya Dryomov ceph_encode_16(&p, req->r_num_ops); 2203bb873b53SIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 2204bb873b53SIlya Dryomov data_len += osd_req_encode_op(p, &req->r_ops[i]); 2205bb873b53SIlya Dryomov p += sizeof(struct ceph_osd_op); 2206bb873b53SIlya Dryomov } 2207bb873b53SIlya Dryomov 2208bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapid); /* snapid */ 2209bb873b53SIlya Dryomov if (req->r_snapc) { 2210bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapc->seq); 2211bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_snapc->num_snaps); 2212bb873b53SIlya Dryomov for (i = 0; i < req->r_snapc->num_snaps; i++) 2213bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapc->snaps[i]); 2214bb873b53SIlya Dryomov } else { 2215bb873b53SIlya Dryomov ceph_encode_64(&p, 0); /* snap_seq */ 2216bb873b53SIlya Dryomov ceph_encode_32(&p, 0); /* snaps len */ 2217bb873b53SIlya Dryomov } 2218bb873b53SIlya Dryomov 2219bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_attempts); /* retry_attempt */ 2220986e8989SIlya Dryomov BUG_ON(p > end - 8); /* space for features */ 2221bb873b53SIlya Dryomov 22228cb441c0SIlya Dryomov msg->hdr.version = cpu_to_le16(8); /* MOSDOp v8 */ 22238cb441c0SIlya Dryomov /* front_len is finalized in encode_request_finish() */ 2224986e8989SIlya Dryomov msg->front.iov_len = p - msg->front.iov_base; 2225986e8989SIlya Dryomov msg->hdr.front_len = cpu_to_le32(msg->front.iov_len); 2226bb873b53SIlya Dryomov msg->hdr.data_len = cpu_to_le32(data_len); 2227bb873b53SIlya Dryomov /* 2228bb873b53SIlya Dryomov * The header "data_off" is a hint to the receiver allowing it 2229bb873b53SIlya Dryomov * to align received data into its buffers such that there's no 2230bb873b53SIlya Dryomov * need to re-copy it before writing it to disk (direct I/O). 2231bb873b53SIlya Dryomov */ 2232bb873b53SIlya Dryomov msg->hdr.data_off = cpu_to_le16(req->r_data_offset); 2233bb873b53SIlya Dryomov 22348cb441c0SIlya Dryomov dout("%s req %p msg %p oid %s oid_len %d\n", __func__, req, msg, 22358cb441c0SIlya Dryomov req->r_t.target_oid.name, req->r_t.target_oid.name_len); 22368cb441c0SIlya Dryomov } 22378cb441c0SIlya Dryomov 22388cb441c0SIlya Dryomov static void encode_request_finish(struct ceph_msg *msg) 22398cb441c0SIlya Dryomov { 22408cb441c0SIlya Dryomov void *p = msg->front.iov_base; 2241986e8989SIlya Dryomov void *const partial_end = p + msg->front.iov_len; 22428cb441c0SIlya Dryomov void *const end = p + msg->front_alloc_len; 22438cb441c0SIlya Dryomov 22448cb441c0SIlya Dryomov if (CEPH_HAVE_FEATURE(msg->con->peer_features, RESEND_ON_SPLIT)) { 22458cb441c0SIlya Dryomov /* luminous OSD -- encode features and be done */ 2246986e8989SIlya Dryomov p = partial_end; 22478cb441c0SIlya Dryomov ceph_encode_64(&p, msg->con->peer_features); 22488cb441c0SIlya Dryomov } else { 22498cb441c0SIlya Dryomov struct { 22508cb441c0SIlya Dryomov char spgid[CEPH_ENCODING_START_BLK_LEN + 22518cb441c0SIlya Dryomov CEPH_PGID_ENCODING_LEN + 1]; 22528cb441c0SIlya Dryomov __le32 hash; 22538cb441c0SIlya Dryomov __le32 epoch; 22548cb441c0SIlya Dryomov __le32 flags; 22558cb441c0SIlya Dryomov char reqid[CEPH_ENCODING_START_BLK_LEN + 22568cb441c0SIlya Dryomov sizeof(struct ceph_osd_reqid)]; 22578cb441c0SIlya Dryomov char trace[sizeof(struct ceph_blkin_trace_info)]; 22588cb441c0SIlya Dryomov __le32 client_inc; 22598cb441c0SIlya Dryomov struct ceph_timespec mtime; 22608cb441c0SIlya Dryomov } __packed head; 22618cb441c0SIlya Dryomov struct ceph_pg pgid; 22628cb441c0SIlya Dryomov void *oloc, *oid, *tail; 22638cb441c0SIlya Dryomov int oloc_len, oid_len, tail_len; 22648cb441c0SIlya Dryomov int len; 22658cb441c0SIlya Dryomov 22668cb441c0SIlya Dryomov /* 22678cb441c0SIlya Dryomov * Pre-luminous OSD -- reencode v8 into v4 using @head 22688cb441c0SIlya Dryomov * as a temporary buffer. Encode the raw PG; the rest 22698cb441c0SIlya Dryomov * is just a matter of moving oloc, oid and tail blobs 22708cb441c0SIlya Dryomov * around. 22718cb441c0SIlya Dryomov */ 22728cb441c0SIlya Dryomov memcpy(&head, p, sizeof(head)); 22738cb441c0SIlya Dryomov p += sizeof(head); 22748cb441c0SIlya Dryomov 22758cb441c0SIlya Dryomov oloc = p; 22768cb441c0SIlya Dryomov p += CEPH_ENCODING_START_BLK_LEN; 22778cb441c0SIlya Dryomov pgid.pool = ceph_decode_64(&p); 22788cb441c0SIlya Dryomov p += 4 + 4; /* preferred, key len */ 22798cb441c0SIlya Dryomov len = ceph_decode_32(&p); 22808cb441c0SIlya Dryomov p += len; /* nspace */ 22818cb441c0SIlya Dryomov oloc_len = p - oloc; 22828cb441c0SIlya Dryomov 22838cb441c0SIlya Dryomov oid = p; 22848cb441c0SIlya Dryomov len = ceph_decode_32(&p); 22858cb441c0SIlya Dryomov p += len; 22868cb441c0SIlya Dryomov oid_len = p - oid; 22878cb441c0SIlya Dryomov 22888cb441c0SIlya Dryomov tail = p; 2289986e8989SIlya Dryomov tail_len = partial_end - p; 22908cb441c0SIlya Dryomov 22918cb441c0SIlya Dryomov p = msg->front.iov_base; 22928cb441c0SIlya Dryomov ceph_encode_copy(&p, &head.client_inc, sizeof(head.client_inc)); 22938cb441c0SIlya Dryomov ceph_encode_copy(&p, &head.epoch, sizeof(head.epoch)); 22948cb441c0SIlya Dryomov ceph_encode_copy(&p, &head.flags, sizeof(head.flags)); 22958cb441c0SIlya Dryomov ceph_encode_copy(&p, &head.mtime, sizeof(head.mtime)); 22968cb441c0SIlya Dryomov 22978cb441c0SIlya Dryomov /* reassert_version */ 22988cb441c0SIlya Dryomov memset(p, 0, sizeof(struct ceph_eversion)); 22998cb441c0SIlya Dryomov p += sizeof(struct ceph_eversion); 23008cb441c0SIlya Dryomov 23018cb441c0SIlya Dryomov BUG_ON(p >= oloc); 23028cb441c0SIlya Dryomov memmove(p, oloc, oloc_len); 23038cb441c0SIlya Dryomov p += oloc_len; 23048cb441c0SIlya Dryomov 23058cb441c0SIlya Dryomov pgid.seed = le32_to_cpu(head.hash); 23068cb441c0SIlya Dryomov encode_pgid(&p, &pgid); /* raw pg */ 23078cb441c0SIlya Dryomov 23088cb441c0SIlya Dryomov BUG_ON(p >= oid); 23098cb441c0SIlya Dryomov memmove(p, oid, oid_len); 23108cb441c0SIlya Dryomov p += oid_len; 23118cb441c0SIlya Dryomov 23128cb441c0SIlya Dryomov /* tail -- ops, snapid, snapc, retry_attempt */ 23138cb441c0SIlya Dryomov BUG_ON(p >= tail); 23148cb441c0SIlya Dryomov memmove(p, tail, tail_len); 23158cb441c0SIlya Dryomov p += tail_len; 23168cb441c0SIlya Dryomov 23178cb441c0SIlya Dryomov msg->hdr.version = cpu_to_le16(4); /* MOSDOp v4 */ 23188cb441c0SIlya Dryomov } 23198cb441c0SIlya Dryomov 23208cb441c0SIlya Dryomov BUG_ON(p > end); 23218cb441c0SIlya Dryomov msg->front.iov_len = p - msg->front.iov_base; 23228cb441c0SIlya Dryomov msg->hdr.front_len = cpu_to_le32(msg->front.iov_len); 23238cb441c0SIlya Dryomov 23248cb441c0SIlya Dryomov dout("%s msg %p tid %llu %u+%u+%u v%d\n", __func__, msg, 23258cb441c0SIlya Dryomov le64_to_cpu(msg->hdr.tid), le32_to_cpu(msg->hdr.front_len), 23268cb441c0SIlya Dryomov le32_to_cpu(msg->hdr.middle_len), le32_to_cpu(msg->hdr.data_len), 23278cb441c0SIlya Dryomov le16_to_cpu(msg->hdr.version)); 2328bb873b53SIlya Dryomov } 2329bb873b53SIlya Dryomov 2330bb873b53SIlya Dryomov /* 2331bb873b53SIlya Dryomov * @req has to be assigned a tid and registered. 2332bb873b53SIlya Dryomov */ 2333bb873b53SIlya Dryomov static void send_request(struct ceph_osd_request *req) 2334bb873b53SIlya Dryomov { 2335bb873b53SIlya Dryomov struct ceph_osd *osd = req->r_osd; 2336bb873b53SIlya Dryomov 23375aea3dcdSIlya Dryomov verify_osd_locked(osd); 2338bb873b53SIlya Dryomov WARN_ON(osd->o_osd != req->r_t.osd); 2339bb873b53SIlya Dryomov 2340a02a946dSIlya Dryomov /* backoff? */ 2341a02a946dSIlya Dryomov if (should_plug_request(req)) 2342a02a946dSIlya Dryomov return; 2343a02a946dSIlya Dryomov 23445aea3dcdSIlya Dryomov /* 23455aea3dcdSIlya Dryomov * We may have a previously queued request message hanging 23465aea3dcdSIlya Dryomov * around. Cancel it to avoid corrupting the msgr. 23475aea3dcdSIlya Dryomov */ 23485aea3dcdSIlya Dryomov if (req->r_sent) 23495aea3dcdSIlya Dryomov ceph_msg_revoke(req->r_request); 23505aea3dcdSIlya Dryomov 2351bb873b53SIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_KNOWN_REDIR; 2352bb873b53SIlya Dryomov if (req->r_attempts) 2353bb873b53SIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_RETRY; 2354bb873b53SIlya Dryomov else 2355bb873b53SIlya Dryomov WARN_ON(req->r_flags & CEPH_OSD_FLAG_RETRY); 2356bb873b53SIlya Dryomov 23578cb441c0SIlya Dryomov encode_request_partial(req, req->r_request); 2358bb873b53SIlya Dryomov 235904c7d789SIlya Dryomov dout("%s req %p tid %llu to pgid %llu.%x spgid %llu.%xs%d osd%d e%u flags 0x%x attempt %d\n", 2360bb873b53SIlya Dryomov __func__, req, req->r_tid, req->r_t.pgid.pool, req->r_t.pgid.seed, 2361dc98ff72SIlya Dryomov req->r_t.spgid.pgid.pool, req->r_t.spgid.pgid.seed, 236204c7d789SIlya Dryomov req->r_t.spgid.shard, osd->o_osd, req->r_t.epoch, req->r_flags, 236304c7d789SIlya Dryomov req->r_attempts); 2364bb873b53SIlya Dryomov 2365bb873b53SIlya Dryomov req->r_t.paused = false; 23663d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 2367bb873b53SIlya Dryomov req->r_attempts++; 23683d14c5d2SYehuda Sadeh 2369bb873b53SIlya Dryomov req->r_sent = osd->o_incarnation; 2370bb873b53SIlya Dryomov req->r_request->hdr.tid = cpu_to_le64(req->r_tid); 2371bb873b53SIlya Dryomov ceph_con_send(&osd->o_con, ceph_msg_get(req->r_request)); 23723d14c5d2SYehuda Sadeh } 23733d14c5d2SYehuda Sadeh 237442c1b124SIlya Dryomov static void maybe_request_map(struct ceph_osd_client *osdc) 237542c1b124SIlya Dryomov { 237642c1b124SIlya Dryomov bool continuous = false; 237742c1b124SIlya Dryomov 23785aea3dcdSIlya Dryomov verify_osdc_locked(osdc); 237942c1b124SIlya Dryomov WARN_ON(!osdc->osdmap->epoch); 238042c1b124SIlya Dryomov 2381b7ec35b3SIlya Dryomov if (ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || 2382b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSERD) || 2383b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSEWR)) { 238442c1b124SIlya Dryomov dout("%s osdc %p continuous\n", __func__, osdc); 238542c1b124SIlya Dryomov continuous = true; 238642c1b124SIlya Dryomov } else { 238742c1b124SIlya Dryomov dout("%s osdc %p onetime\n", __func__, osdc); 238842c1b124SIlya Dryomov } 238942c1b124SIlya Dryomov 239042c1b124SIlya Dryomov if (ceph_monc_want_map(&osdc->client->monc, CEPH_SUB_OSDMAP, 239142c1b124SIlya Dryomov osdc->osdmap->epoch + 1, continuous)) 239242c1b124SIlya Dryomov ceph_monc_renew_subs(&osdc->client->monc); 239342c1b124SIlya Dryomov } 239442c1b124SIlya Dryomov 2395a1f4020aSJeff Layton static void complete_request(struct ceph_osd_request *req, int err); 23964609245eSIlya Dryomov static void send_map_check(struct ceph_osd_request *req); 23974609245eSIlya Dryomov 23985aea3dcdSIlya Dryomov static void __submit_request(struct ceph_osd_request *req, bool wrlocked) 23990bbfdfe8SIlya Dryomov { 24005aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 24015aea3dcdSIlya Dryomov struct ceph_osd *osd; 24024609245eSIlya Dryomov enum calc_target_result ct_res; 240366850df5SIlya Dryomov int err = 0; 24045aea3dcdSIlya Dryomov bool need_send = false; 24055aea3dcdSIlya Dryomov bool promoted = false; 24060bbfdfe8SIlya Dryomov 2407b18b9550SIlya Dryomov WARN_ON(req->r_tid); 24085aea3dcdSIlya Dryomov dout("%s req %p wrlocked %d\n", __func__, req, wrlocked); 24095aea3dcdSIlya Dryomov 24105aea3dcdSIlya Dryomov again: 24118edf84baSIlya Dryomov ct_res = calc_target(osdc, &req->r_t, false); 24124609245eSIlya Dryomov if (ct_res == CALC_TARGET_POOL_DNE && !wrlocked) 24134609245eSIlya Dryomov goto promote; 24144609245eSIlya Dryomov 24155aea3dcdSIlya Dryomov osd = lookup_create_osd(osdc, req->r_t.osd, wrlocked); 24165aea3dcdSIlya Dryomov if (IS_ERR(osd)) { 24175aea3dcdSIlya Dryomov WARN_ON(PTR_ERR(osd) != -EAGAIN || wrlocked); 24185aea3dcdSIlya Dryomov goto promote; 24195aea3dcdSIlya Dryomov } 24205aea3dcdSIlya Dryomov 242166850df5SIlya Dryomov if (osdc->abort_err) { 242266850df5SIlya Dryomov dout("req %p abort_err %d\n", req, osdc->abort_err); 242366850df5SIlya Dryomov err = osdc->abort_err; 242466850df5SIlya Dryomov } else if (osdc->osdmap->epoch < osdc->epoch_barrier) { 242558eb7932SJeff Layton dout("req %p epoch %u barrier %u\n", req, osdc->osdmap->epoch, 242658eb7932SJeff Layton osdc->epoch_barrier); 242758eb7932SJeff Layton req->r_t.paused = true; 242858eb7932SJeff Layton maybe_request_map(osdc); 242958eb7932SJeff Layton } else if ((req->r_flags & CEPH_OSD_FLAG_WRITE) && 2430b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSEWR)) { 24315aea3dcdSIlya Dryomov dout("req %p pausewr\n", req); 24325aea3dcdSIlya Dryomov req->r_t.paused = true; 24335aea3dcdSIlya Dryomov maybe_request_map(osdc); 24345aea3dcdSIlya Dryomov } else if ((req->r_flags & CEPH_OSD_FLAG_READ) && 2435b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSERD)) { 24365aea3dcdSIlya Dryomov dout("req %p pauserd\n", req); 24375aea3dcdSIlya Dryomov req->r_t.paused = true; 24385aea3dcdSIlya Dryomov maybe_request_map(osdc); 24395aea3dcdSIlya Dryomov } else if ((req->r_flags & CEPH_OSD_FLAG_WRITE) && 24405aea3dcdSIlya Dryomov !(req->r_flags & (CEPH_OSD_FLAG_FULL_TRY | 24415aea3dcdSIlya Dryomov CEPH_OSD_FLAG_FULL_FORCE)) && 2442b7ec35b3SIlya Dryomov (ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || 24435aea3dcdSIlya Dryomov pool_full(osdc, req->r_t.base_oloc.pool))) { 24445aea3dcdSIlya Dryomov dout("req %p full/pool_full\n", req); 244502b2f549SDongsheng Yang if (ceph_test_opt(osdc->client, ABORT_ON_FULL)) { 244629e87820SIlya Dryomov err = -ENOSPC; 244729e87820SIlya Dryomov } else { 2448dc9b0dc4SIlya Dryomov if (ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL)) 2449dc9b0dc4SIlya Dryomov pr_warn_ratelimited("cluster is full (osdmap FULL)\n"); 2450dc9b0dc4SIlya Dryomov else 2451dc9b0dc4SIlya Dryomov pr_warn_ratelimited("pool %lld is full or reached quota\n", 2452dc9b0dc4SIlya Dryomov req->r_t.base_oloc.pool); 24535aea3dcdSIlya Dryomov req->r_t.paused = true; 24545aea3dcdSIlya Dryomov maybe_request_map(osdc); 245529e87820SIlya Dryomov } 24565aea3dcdSIlya Dryomov } else if (!osd_homeless(osd)) { 24575aea3dcdSIlya Dryomov need_send = true; 24580bbfdfe8SIlya Dryomov } else { 24595aea3dcdSIlya Dryomov maybe_request_map(osdc); 24600bbfdfe8SIlya Dryomov } 24610bbfdfe8SIlya Dryomov 24625aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 24635aea3dcdSIlya Dryomov /* 24645aea3dcdSIlya Dryomov * Assign the tid atomically with send_request() to protect 24655aea3dcdSIlya Dryomov * multiple writes to the same object from racing with each 24665aea3dcdSIlya Dryomov * other, resulting in out of order ops on the OSDs. 24675aea3dcdSIlya Dryomov */ 24685aea3dcdSIlya Dryomov req->r_tid = atomic64_inc_return(&osdc->last_tid); 24695aea3dcdSIlya Dryomov link_request(osd, req); 24705aea3dcdSIlya Dryomov if (need_send) 24715aea3dcdSIlya Dryomov send_request(req); 247266850df5SIlya Dryomov else if (err) 247366850df5SIlya Dryomov complete_request(req, err); 24745aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 24755aea3dcdSIlya Dryomov 24766001567cSIlya Dryomov if (!err && ct_res == CALC_TARGET_POOL_DNE) 24774609245eSIlya Dryomov send_map_check(req); 24784609245eSIlya Dryomov 24795aea3dcdSIlya Dryomov if (promoted) 24805aea3dcdSIlya Dryomov downgrade_write(&osdc->lock); 24815aea3dcdSIlya Dryomov return; 24825aea3dcdSIlya Dryomov 24835aea3dcdSIlya Dryomov promote: 24845aea3dcdSIlya Dryomov up_read(&osdc->lock); 24855aea3dcdSIlya Dryomov down_write(&osdc->lock); 24865aea3dcdSIlya Dryomov wrlocked = true; 24875aea3dcdSIlya Dryomov promoted = true; 24885aea3dcdSIlya Dryomov goto again; 24890bbfdfe8SIlya Dryomov } 24900bbfdfe8SIlya Dryomov 24915aea3dcdSIlya Dryomov static void account_request(struct ceph_osd_request *req) 24925aea3dcdSIlya Dryomov { 249354ea0046SIlya Dryomov WARN_ON(req->r_flags & (CEPH_OSD_FLAG_ACK | CEPH_OSD_FLAG_ONDISK)); 2494b18b9550SIlya Dryomov WARN_ON(!(req->r_flags & (CEPH_OSD_FLAG_READ | CEPH_OSD_FLAG_WRITE))); 24955aea3dcdSIlya Dryomov 2496b18b9550SIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_ONDISK; 249722d2cfdfSIlya Dryomov atomic_inc(&req->r_osdc->num_requests); 24987cc5e38fSIlya Dryomov 24997cc5e38fSIlya Dryomov req->r_start_stamp = jiffies; 250097e27aaaSXiubo Li req->r_start_latency = ktime_get(); 25015aea3dcdSIlya Dryomov } 25025aea3dcdSIlya Dryomov 25035aea3dcdSIlya Dryomov static void submit_request(struct ceph_osd_request *req, bool wrlocked) 25045aea3dcdSIlya Dryomov { 25055aea3dcdSIlya Dryomov ceph_osdc_get_request(req); 25065aea3dcdSIlya Dryomov account_request(req); 25075aea3dcdSIlya Dryomov __submit_request(req, wrlocked); 25085aea3dcdSIlya Dryomov } 25095aea3dcdSIlya Dryomov 251045ee2c1dSIlya Dryomov static void finish_request(struct ceph_osd_request *req) 25115aea3dcdSIlya Dryomov { 25125aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 25135aea3dcdSIlya Dryomov 25144609245eSIlya Dryomov WARN_ON(lookup_request_mc(&osdc->map_checks, req->r_tid)); 251504c7d789SIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 251604c7d789SIlya Dryomov 251797e27aaaSXiubo Li req->r_end_latency = ktime_get(); 251897e27aaaSXiubo Li 2519f628d799SJeff Layton if (req->r_osd) { 2520f628d799SJeff Layton ceph_init_sparse_read(&req->r_osd->o_sparse_read); 252104c7d789SIlya Dryomov unlink_request(req->r_osd, req); 2522f628d799SJeff Layton } 25235aea3dcdSIlya Dryomov atomic_dec(&osdc->num_requests); 25245aea3dcdSIlya Dryomov 25255aea3dcdSIlya Dryomov /* 25265aea3dcdSIlya Dryomov * If an OSD has failed or returned and a request has been sent 25275aea3dcdSIlya Dryomov * twice, it's possible to get a reply and end up here while the 25285aea3dcdSIlya Dryomov * request message is queued for delivery. We will ignore the 25295aea3dcdSIlya Dryomov * reply, so not a big deal, but better to try and catch it. 25305aea3dcdSIlya Dryomov */ 25315aea3dcdSIlya Dryomov ceph_msg_revoke(req->r_request); 25325aea3dcdSIlya Dryomov ceph_msg_revoke_incoming(req->r_reply); 25335aea3dcdSIlya Dryomov } 25345aea3dcdSIlya Dryomov 2535fe5da05eSIlya Dryomov static void __complete_request(struct ceph_osd_request *req) 2536fe5da05eSIlya Dryomov { 2537d75f773cSSakari Ailus dout("%s req %p tid %llu cb %ps result %d\n", __func__, req, 2538b18b9550SIlya Dryomov req->r_tid, req->r_callback, req->r_result); 253926df726bSIlya Dryomov 254026df726bSIlya Dryomov if (req->r_callback) 2541fe5da05eSIlya Dryomov req->r_callback(req); 254226df726bSIlya Dryomov complete_all(&req->r_completion); 254326df726bSIlya Dryomov ceph_osdc_put_request(req); 2544b18b9550SIlya Dryomov } 2545fe5da05eSIlya Dryomov 254688bc1922SIlya Dryomov static void complete_request_workfn(struct work_struct *work) 254788bc1922SIlya Dryomov { 254888bc1922SIlya Dryomov struct ceph_osd_request *req = 254988bc1922SIlya Dryomov container_of(work, struct ceph_osd_request, r_complete_work); 255088bc1922SIlya Dryomov 255188bc1922SIlya Dryomov __complete_request(req); 25520bbfdfe8SIlya Dryomov } 25530bbfdfe8SIlya Dryomov 25544609245eSIlya Dryomov /* 2555b18b9550SIlya Dryomov * This is open-coded in handle_reply(). 25564609245eSIlya Dryomov */ 25574609245eSIlya Dryomov static void complete_request(struct ceph_osd_request *req, int err) 25584609245eSIlya Dryomov { 25594609245eSIlya Dryomov dout("%s req %p tid %llu err %d\n", __func__, req, req->r_tid, err); 25604609245eSIlya Dryomov 25614609245eSIlya Dryomov req->r_result = err; 256245ee2c1dSIlya Dryomov finish_request(req); 256388bc1922SIlya Dryomov 256488bc1922SIlya Dryomov INIT_WORK(&req->r_complete_work, complete_request_workfn); 256588bc1922SIlya Dryomov queue_work(req->r_osdc->completion_wq, &req->r_complete_work); 25664609245eSIlya Dryomov } 25674609245eSIlya Dryomov 25684609245eSIlya Dryomov static void cancel_map_check(struct ceph_osd_request *req) 25694609245eSIlya Dryomov { 25704609245eSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 25714609245eSIlya Dryomov struct ceph_osd_request *lookup_req; 25724609245eSIlya Dryomov 25734609245eSIlya Dryomov verify_osdc_wrlocked(osdc); 25744609245eSIlya Dryomov 25754609245eSIlya Dryomov lookup_req = lookup_request_mc(&osdc->map_checks, req->r_tid); 25764609245eSIlya Dryomov if (!lookup_req) 25774609245eSIlya Dryomov return; 25784609245eSIlya Dryomov 25794609245eSIlya Dryomov WARN_ON(lookup_req != req); 25804609245eSIlya Dryomov erase_request_mc(&osdc->map_checks, req); 25814609245eSIlya Dryomov ceph_osdc_put_request(req); 25824609245eSIlya Dryomov } 25834609245eSIlya Dryomov 25845aea3dcdSIlya Dryomov static void cancel_request(struct ceph_osd_request *req) 25855aea3dcdSIlya Dryomov { 25865aea3dcdSIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 25875aea3dcdSIlya Dryomov 25884609245eSIlya Dryomov cancel_map_check(req); 258945ee2c1dSIlya Dryomov finish_request(req); 2590b18b9550SIlya Dryomov complete_all(&req->r_completion); 2591c297eb42SIlya Dryomov ceph_osdc_put_request(req); 25925aea3dcdSIlya Dryomov } 25935aea3dcdSIlya Dryomov 25947cc5e38fSIlya Dryomov static void abort_request(struct ceph_osd_request *req, int err) 25957cc5e38fSIlya Dryomov { 25967cc5e38fSIlya Dryomov dout("%s req %p tid %llu err %d\n", __func__, req, req->r_tid, err); 25977cc5e38fSIlya Dryomov 25987cc5e38fSIlya Dryomov cancel_map_check(req); 25997cc5e38fSIlya Dryomov complete_request(req, err); 26007cc5e38fSIlya Dryomov } 26017cc5e38fSIlya Dryomov 260266850df5SIlya Dryomov static int abort_fn(struct ceph_osd_request *req, void *arg) 260366850df5SIlya Dryomov { 260466850df5SIlya Dryomov int err = *(int *)arg; 260566850df5SIlya Dryomov 260666850df5SIlya Dryomov abort_request(req, err); 260766850df5SIlya Dryomov return 0; /* continue iteration */ 260866850df5SIlya Dryomov } 260966850df5SIlya Dryomov 261066850df5SIlya Dryomov /* 261166850df5SIlya Dryomov * Abort all in-flight requests with @err and arrange for all future 261266850df5SIlya Dryomov * requests to be failed immediately. 261366850df5SIlya Dryomov */ 261466850df5SIlya Dryomov void ceph_osdc_abort_requests(struct ceph_osd_client *osdc, int err) 261566850df5SIlya Dryomov { 261666850df5SIlya Dryomov dout("%s osdc %p err %d\n", __func__, osdc, err); 261766850df5SIlya Dryomov down_write(&osdc->lock); 261866850df5SIlya Dryomov for_each_request(osdc, abort_fn, &err); 261966850df5SIlya Dryomov osdc->abort_err = err; 262066850df5SIlya Dryomov up_write(&osdc->lock); 262166850df5SIlya Dryomov } 262266850df5SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_abort_requests); 262366850df5SIlya Dryomov 26242cef0ba8SYan, Zheng void ceph_osdc_clear_abort_err(struct ceph_osd_client *osdc) 26252cef0ba8SYan, Zheng { 26262cef0ba8SYan, Zheng down_write(&osdc->lock); 26272cef0ba8SYan, Zheng osdc->abort_err = 0; 26282cef0ba8SYan, Zheng up_write(&osdc->lock); 26292cef0ba8SYan, Zheng } 26302cef0ba8SYan, Zheng EXPORT_SYMBOL(ceph_osdc_clear_abort_err); 26312cef0ba8SYan, Zheng 263258eb7932SJeff Layton static void update_epoch_barrier(struct ceph_osd_client *osdc, u32 eb) 263358eb7932SJeff Layton { 263458eb7932SJeff Layton if (likely(eb > osdc->epoch_barrier)) { 263558eb7932SJeff Layton dout("updating epoch_barrier from %u to %u\n", 263658eb7932SJeff Layton osdc->epoch_barrier, eb); 263758eb7932SJeff Layton osdc->epoch_barrier = eb; 263858eb7932SJeff Layton /* Request map if we're not to the barrier yet */ 263958eb7932SJeff Layton if (eb > osdc->osdmap->epoch) 264058eb7932SJeff Layton maybe_request_map(osdc); 264158eb7932SJeff Layton } 264258eb7932SJeff Layton } 264358eb7932SJeff Layton 264458eb7932SJeff Layton void ceph_osdc_update_epoch_barrier(struct ceph_osd_client *osdc, u32 eb) 264558eb7932SJeff Layton { 264658eb7932SJeff Layton down_read(&osdc->lock); 264758eb7932SJeff Layton if (unlikely(eb > osdc->epoch_barrier)) { 264858eb7932SJeff Layton up_read(&osdc->lock); 264958eb7932SJeff Layton down_write(&osdc->lock); 265058eb7932SJeff Layton update_epoch_barrier(osdc, eb); 265158eb7932SJeff Layton up_write(&osdc->lock); 265258eb7932SJeff Layton } else { 265358eb7932SJeff Layton up_read(&osdc->lock); 265458eb7932SJeff Layton } 265558eb7932SJeff Layton } 265658eb7932SJeff Layton EXPORT_SYMBOL(ceph_osdc_update_epoch_barrier); 265758eb7932SJeff Layton 2658fc36d0a4SJeff Layton /* 26594eea0fefSIlya Dryomov * We can end up releasing caps as a result of abort_request(). 26604eea0fefSIlya Dryomov * In that case, we probably want to ensure that the cap release message 26614eea0fefSIlya Dryomov * has an updated epoch barrier in it, so set the epoch barrier prior to 26624eea0fefSIlya Dryomov * aborting the first request. 26634eea0fefSIlya Dryomov */ 26644eea0fefSIlya Dryomov static int abort_on_full_fn(struct ceph_osd_request *req, void *arg) 26654eea0fefSIlya Dryomov { 26664eea0fefSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 26674eea0fefSIlya Dryomov bool *victims = arg; 26684eea0fefSIlya Dryomov 2669c843d13cSIlya Dryomov if ((req->r_flags & CEPH_OSD_FLAG_WRITE) && 26704eea0fefSIlya Dryomov (ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || 2671690f951dSIlya Dryomov pool_full(osdc, req->r_t.base_oloc.pool))) { 26724eea0fefSIlya Dryomov if (!*victims) { 26734eea0fefSIlya Dryomov update_epoch_barrier(osdc, osdc->osdmap->epoch); 26744eea0fefSIlya Dryomov *victims = true; 26754eea0fefSIlya Dryomov } 26764eea0fefSIlya Dryomov abort_request(req, -ENOSPC); 26774eea0fefSIlya Dryomov } 26784eea0fefSIlya Dryomov 26794eea0fefSIlya Dryomov return 0; /* continue iteration */ 26804eea0fefSIlya Dryomov } 26814eea0fefSIlya Dryomov 26824eea0fefSIlya Dryomov /* 2683fc36d0a4SJeff Layton * Drop all pending requests that are stalled waiting on a full condition to 268458eb7932SJeff Layton * clear, and complete them with ENOSPC as the return code. Set the 268558eb7932SJeff Layton * osdc->epoch_barrier to the latest map epoch that we've seen if any were 268658eb7932SJeff Layton * cancelled. 2687fc36d0a4SJeff Layton */ 2688fc36d0a4SJeff Layton static void ceph_osdc_abort_on_full(struct ceph_osd_client *osdc) 2689fc36d0a4SJeff Layton { 269058eb7932SJeff Layton bool victims = false; 2691fc36d0a4SJeff Layton 269202b2f549SDongsheng Yang if (ceph_test_opt(osdc->client, ABORT_ON_FULL) && 2693c843d13cSIlya Dryomov (ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || have_pool_full(osdc))) 26944eea0fefSIlya Dryomov for_each_request(osdc, abort_on_full_fn, &victims); 2695fc36d0a4SJeff Layton } 2696fc36d0a4SJeff Layton 26974609245eSIlya Dryomov static void check_pool_dne(struct ceph_osd_request *req) 26984609245eSIlya Dryomov { 26994609245eSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 27004609245eSIlya Dryomov struct ceph_osdmap *map = osdc->osdmap; 27014609245eSIlya Dryomov 27024609245eSIlya Dryomov verify_osdc_wrlocked(osdc); 27034609245eSIlya Dryomov WARN_ON(!map->epoch); 27044609245eSIlya Dryomov 27054609245eSIlya Dryomov if (req->r_attempts) { 27064609245eSIlya Dryomov /* 27074609245eSIlya Dryomov * We sent a request earlier, which means that 27084609245eSIlya Dryomov * previously the pool existed, and now it does not 27094609245eSIlya Dryomov * (i.e., it was deleted). 27104609245eSIlya Dryomov */ 27114609245eSIlya Dryomov req->r_map_dne_bound = map->epoch; 27124609245eSIlya Dryomov dout("%s req %p tid %llu pool disappeared\n", __func__, req, 27134609245eSIlya Dryomov req->r_tid); 27144609245eSIlya Dryomov } else { 27154609245eSIlya Dryomov dout("%s req %p tid %llu map_dne_bound %u have %u\n", __func__, 27164609245eSIlya Dryomov req, req->r_tid, req->r_map_dne_bound, map->epoch); 27174609245eSIlya Dryomov } 27184609245eSIlya Dryomov 27194609245eSIlya Dryomov if (req->r_map_dne_bound) { 27204609245eSIlya Dryomov if (map->epoch >= req->r_map_dne_bound) { 27214609245eSIlya Dryomov /* we had a new enough map */ 27224609245eSIlya Dryomov pr_info_ratelimited("tid %llu pool does not exist\n", 27234609245eSIlya Dryomov req->r_tid); 27244609245eSIlya Dryomov complete_request(req, -ENOENT); 27254609245eSIlya Dryomov } 27264609245eSIlya Dryomov } else { 27274609245eSIlya Dryomov send_map_check(req); 27284609245eSIlya Dryomov } 27294609245eSIlya Dryomov } 27304609245eSIlya Dryomov 27314609245eSIlya Dryomov static void map_check_cb(struct ceph_mon_generic_request *greq) 27324609245eSIlya Dryomov { 27334609245eSIlya Dryomov struct ceph_osd_client *osdc = &greq->monc->client->osdc; 27344609245eSIlya Dryomov struct ceph_osd_request *req; 27354609245eSIlya Dryomov u64 tid = greq->private_data; 27364609245eSIlya Dryomov 27374609245eSIlya Dryomov WARN_ON(greq->result || !greq->u.newest); 27384609245eSIlya Dryomov 27394609245eSIlya Dryomov down_write(&osdc->lock); 27404609245eSIlya Dryomov req = lookup_request_mc(&osdc->map_checks, tid); 27414609245eSIlya Dryomov if (!req) { 27424609245eSIlya Dryomov dout("%s tid %llu dne\n", __func__, tid); 27434609245eSIlya Dryomov goto out_unlock; 27444609245eSIlya Dryomov } 27454609245eSIlya Dryomov 27464609245eSIlya Dryomov dout("%s req %p tid %llu map_dne_bound %u newest %llu\n", __func__, 27474609245eSIlya Dryomov req, req->r_tid, req->r_map_dne_bound, greq->u.newest); 27484609245eSIlya Dryomov if (!req->r_map_dne_bound) 27494609245eSIlya Dryomov req->r_map_dne_bound = greq->u.newest; 27504609245eSIlya Dryomov erase_request_mc(&osdc->map_checks, req); 27514609245eSIlya Dryomov check_pool_dne(req); 27524609245eSIlya Dryomov 27534609245eSIlya Dryomov ceph_osdc_put_request(req); 27544609245eSIlya Dryomov out_unlock: 27554609245eSIlya Dryomov up_write(&osdc->lock); 27564609245eSIlya Dryomov } 27574609245eSIlya Dryomov 27584609245eSIlya Dryomov static void send_map_check(struct ceph_osd_request *req) 27594609245eSIlya Dryomov { 27604609245eSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 27614609245eSIlya Dryomov struct ceph_osd_request *lookup_req; 27624609245eSIlya Dryomov int ret; 27634609245eSIlya Dryomov 27644609245eSIlya Dryomov verify_osdc_wrlocked(osdc); 27654609245eSIlya Dryomov 27664609245eSIlya Dryomov lookup_req = lookup_request_mc(&osdc->map_checks, req->r_tid); 27674609245eSIlya Dryomov if (lookup_req) { 27684609245eSIlya Dryomov WARN_ON(lookup_req != req); 27694609245eSIlya Dryomov return; 27704609245eSIlya Dryomov } 27714609245eSIlya Dryomov 27724609245eSIlya Dryomov ceph_osdc_get_request(req); 27734609245eSIlya Dryomov insert_request_mc(&osdc->map_checks, req); 27744609245eSIlya Dryomov ret = ceph_monc_get_version_async(&osdc->client->monc, "osdmap", 27754609245eSIlya Dryomov map_check_cb, req->r_tid); 27764609245eSIlya Dryomov WARN_ON(ret); 27774609245eSIlya Dryomov } 27784609245eSIlya Dryomov 27790bbfdfe8SIlya Dryomov /* 2780922dab61SIlya Dryomov * lingering requests, watch/notify v2 infrastructure 2781922dab61SIlya Dryomov */ 2782922dab61SIlya Dryomov static void linger_release(struct kref *kref) 2783922dab61SIlya Dryomov { 2784922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = 2785922dab61SIlya Dryomov container_of(kref, struct ceph_osd_linger_request, kref); 2786922dab61SIlya Dryomov 2787922dab61SIlya Dryomov dout("%s lreq %p reg_req %p ping_req %p\n", __func__, lreq, 2788922dab61SIlya Dryomov lreq->reg_req, lreq->ping_req); 2789922dab61SIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&lreq->node)); 2790922dab61SIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&lreq->osdc_node)); 27914609245eSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&lreq->mc_node)); 2792922dab61SIlya Dryomov WARN_ON(!list_empty(&lreq->scan_item)); 2793b07d3c4bSIlya Dryomov WARN_ON(!list_empty(&lreq->pending_lworks)); 2794922dab61SIlya Dryomov WARN_ON(lreq->osd); 2795922dab61SIlya Dryomov 279675dbb685SIlya Dryomov if (lreq->request_pl) 279775dbb685SIlya Dryomov ceph_pagelist_release(lreq->request_pl); 279875dbb685SIlya Dryomov if (lreq->notify_id_pages) 279975dbb685SIlya Dryomov ceph_release_page_vector(lreq->notify_id_pages, 1); 280075dbb685SIlya Dryomov 2801922dab61SIlya Dryomov ceph_osdc_put_request(lreq->reg_req); 2802922dab61SIlya Dryomov ceph_osdc_put_request(lreq->ping_req); 2803922dab61SIlya Dryomov target_destroy(&lreq->t); 2804922dab61SIlya Dryomov kfree(lreq); 2805922dab61SIlya Dryomov } 2806922dab61SIlya Dryomov 2807922dab61SIlya Dryomov static void linger_put(struct ceph_osd_linger_request *lreq) 2808922dab61SIlya Dryomov { 2809922dab61SIlya Dryomov if (lreq) 2810922dab61SIlya Dryomov kref_put(&lreq->kref, linger_release); 2811922dab61SIlya Dryomov } 2812922dab61SIlya Dryomov 2813922dab61SIlya Dryomov static struct ceph_osd_linger_request * 2814922dab61SIlya Dryomov linger_get(struct ceph_osd_linger_request *lreq) 2815922dab61SIlya Dryomov { 2816922dab61SIlya Dryomov kref_get(&lreq->kref); 2817922dab61SIlya Dryomov return lreq; 2818922dab61SIlya Dryomov } 2819922dab61SIlya Dryomov 2820922dab61SIlya Dryomov static struct ceph_osd_linger_request * 2821922dab61SIlya Dryomov linger_alloc(struct ceph_osd_client *osdc) 2822922dab61SIlya Dryomov { 2823922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq; 2824922dab61SIlya Dryomov 2825922dab61SIlya Dryomov lreq = kzalloc(sizeof(*lreq), GFP_NOIO); 2826922dab61SIlya Dryomov if (!lreq) 2827922dab61SIlya Dryomov return NULL; 2828922dab61SIlya Dryomov 2829922dab61SIlya Dryomov kref_init(&lreq->kref); 2830922dab61SIlya Dryomov mutex_init(&lreq->lock); 2831922dab61SIlya Dryomov RB_CLEAR_NODE(&lreq->node); 2832922dab61SIlya Dryomov RB_CLEAR_NODE(&lreq->osdc_node); 28334609245eSIlya Dryomov RB_CLEAR_NODE(&lreq->mc_node); 2834922dab61SIlya Dryomov INIT_LIST_HEAD(&lreq->scan_item); 2835b07d3c4bSIlya Dryomov INIT_LIST_HEAD(&lreq->pending_lworks); 2836922dab61SIlya Dryomov init_completion(&lreq->reg_commit_wait); 283719079203SIlya Dryomov init_completion(&lreq->notify_finish_wait); 2838922dab61SIlya Dryomov 2839922dab61SIlya Dryomov lreq->osdc = osdc; 2840922dab61SIlya Dryomov target_init(&lreq->t); 2841922dab61SIlya Dryomov 2842922dab61SIlya Dryomov dout("%s lreq %p\n", __func__, lreq); 2843922dab61SIlya Dryomov return lreq; 2844922dab61SIlya Dryomov } 2845922dab61SIlya Dryomov 2846922dab61SIlya Dryomov DEFINE_RB_INSDEL_FUNCS(linger, struct ceph_osd_linger_request, linger_id, node) 2847922dab61SIlya Dryomov DEFINE_RB_FUNCS(linger_osdc, struct ceph_osd_linger_request, linger_id, osdc_node) 28484609245eSIlya Dryomov DEFINE_RB_FUNCS(linger_mc, struct ceph_osd_linger_request, linger_id, mc_node) 2849922dab61SIlya Dryomov 2850922dab61SIlya Dryomov /* 2851922dab61SIlya Dryomov * Create linger request <-> OSD session relation. 2852922dab61SIlya Dryomov * 2853922dab61SIlya Dryomov * @lreq has to be registered, @osd may be homeless. 2854922dab61SIlya Dryomov */ 2855922dab61SIlya Dryomov static void link_linger(struct ceph_osd *osd, 2856922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq) 2857922dab61SIlya Dryomov { 2858922dab61SIlya Dryomov verify_osd_locked(osd); 2859922dab61SIlya Dryomov WARN_ON(!lreq->linger_id || lreq->osd); 2860922dab61SIlya Dryomov dout("%s osd %p osd%d lreq %p linger_id %llu\n", __func__, osd, 2861922dab61SIlya Dryomov osd->o_osd, lreq, lreq->linger_id); 2862922dab61SIlya Dryomov 2863922dab61SIlya Dryomov if (!osd_homeless(osd)) 2864922dab61SIlya Dryomov __remove_osd_from_lru(osd); 2865922dab61SIlya Dryomov else 2866922dab61SIlya Dryomov atomic_inc(&osd->o_osdc->num_homeless); 2867922dab61SIlya Dryomov 2868922dab61SIlya Dryomov get_osd(osd); 2869922dab61SIlya Dryomov insert_linger(&osd->o_linger_requests, lreq); 2870922dab61SIlya Dryomov lreq->osd = osd; 2871922dab61SIlya Dryomov } 2872922dab61SIlya Dryomov 2873922dab61SIlya Dryomov static void unlink_linger(struct ceph_osd *osd, 2874922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq) 2875922dab61SIlya Dryomov { 2876922dab61SIlya Dryomov verify_osd_locked(osd); 2877922dab61SIlya Dryomov WARN_ON(lreq->osd != osd); 2878922dab61SIlya Dryomov dout("%s osd %p osd%d lreq %p linger_id %llu\n", __func__, osd, 2879922dab61SIlya Dryomov osd->o_osd, lreq, lreq->linger_id); 2880922dab61SIlya Dryomov 2881922dab61SIlya Dryomov lreq->osd = NULL; 2882922dab61SIlya Dryomov erase_linger(&osd->o_linger_requests, lreq); 2883922dab61SIlya Dryomov put_osd(osd); 2884922dab61SIlya Dryomov 2885922dab61SIlya Dryomov if (!osd_homeless(osd)) 2886922dab61SIlya Dryomov maybe_move_osd_to_lru(osd); 2887922dab61SIlya Dryomov else 2888922dab61SIlya Dryomov atomic_dec(&osd->o_osdc->num_homeless); 2889922dab61SIlya Dryomov } 2890922dab61SIlya Dryomov 2891922dab61SIlya Dryomov static bool __linger_registered(struct ceph_osd_linger_request *lreq) 2892922dab61SIlya Dryomov { 2893922dab61SIlya Dryomov verify_osdc_locked(lreq->osdc); 2894922dab61SIlya Dryomov 2895922dab61SIlya Dryomov return !RB_EMPTY_NODE(&lreq->osdc_node); 2896922dab61SIlya Dryomov } 2897922dab61SIlya Dryomov 2898922dab61SIlya Dryomov static bool linger_registered(struct ceph_osd_linger_request *lreq) 2899922dab61SIlya Dryomov { 2900922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 2901922dab61SIlya Dryomov bool registered; 2902922dab61SIlya Dryomov 2903922dab61SIlya Dryomov down_read(&osdc->lock); 2904922dab61SIlya Dryomov registered = __linger_registered(lreq); 2905922dab61SIlya Dryomov up_read(&osdc->lock); 2906922dab61SIlya Dryomov 2907922dab61SIlya Dryomov return registered; 2908922dab61SIlya Dryomov } 2909922dab61SIlya Dryomov 2910922dab61SIlya Dryomov static void linger_register(struct ceph_osd_linger_request *lreq) 2911922dab61SIlya Dryomov { 2912922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 2913922dab61SIlya Dryomov 2914922dab61SIlya Dryomov verify_osdc_wrlocked(osdc); 2915922dab61SIlya Dryomov WARN_ON(lreq->linger_id); 2916922dab61SIlya Dryomov 2917922dab61SIlya Dryomov linger_get(lreq); 2918922dab61SIlya Dryomov lreq->linger_id = ++osdc->last_linger_id; 2919922dab61SIlya Dryomov insert_linger_osdc(&osdc->linger_requests, lreq); 2920922dab61SIlya Dryomov } 2921922dab61SIlya Dryomov 2922922dab61SIlya Dryomov static void linger_unregister(struct ceph_osd_linger_request *lreq) 2923922dab61SIlya Dryomov { 2924922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 2925922dab61SIlya Dryomov 2926922dab61SIlya Dryomov verify_osdc_wrlocked(osdc); 2927922dab61SIlya Dryomov 2928922dab61SIlya Dryomov erase_linger_osdc(&osdc->linger_requests, lreq); 2929922dab61SIlya Dryomov linger_put(lreq); 2930922dab61SIlya Dryomov } 2931922dab61SIlya Dryomov 2932922dab61SIlya Dryomov static void cancel_linger_request(struct ceph_osd_request *req) 2933922dab61SIlya Dryomov { 2934922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = req->r_priv; 2935922dab61SIlya Dryomov 2936922dab61SIlya Dryomov WARN_ON(!req->r_linger); 2937922dab61SIlya Dryomov cancel_request(req); 2938922dab61SIlya Dryomov linger_put(lreq); 2939922dab61SIlya Dryomov } 2940922dab61SIlya Dryomov 2941922dab61SIlya Dryomov struct linger_work { 2942922dab61SIlya Dryomov struct work_struct work; 2943922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq; 2944b07d3c4bSIlya Dryomov struct list_head pending_item; 2945b07d3c4bSIlya Dryomov unsigned long queued_stamp; 2946922dab61SIlya Dryomov 2947922dab61SIlya Dryomov union { 2948922dab61SIlya Dryomov struct { 2949922dab61SIlya Dryomov u64 notify_id; 2950922dab61SIlya Dryomov u64 notifier_id; 2951922dab61SIlya Dryomov void *payload; /* points into @msg front */ 2952922dab61SIlya Dryomov size_t payload_len; 2953922dab61SIlya Dryomov 2954922dab61SIlya Dryomov struct ceph_msg *msg; /* for ceph_msg_put() */ 2955922dab61SIlya Dryomov } notify; 2956922dab61SIlya Dryomov struct { 2957922dab61SIlya Dryomov int err; 2958922dab61SIlya Dryomov } error; 2959922dab61SIlya Dryomov }; 2960922dab61SIlya Dryomov }; 2961922dab61SIlya Dryomov 2962922dab61SIlya Dryomov static struct linger_work *lwork_alloc(struct ceph_osd_linger_request *lreq, 2963922dab61SIlya Dryomov work_func_t workfn) 2964922dab61SIlya Dryomov { 2965922dab61SIlya Dryomov struct linger_work *lwork; 2966922dab61SIlya Dryomov 2967922dab61SIlya Dryomov lwork = kzalloc(sizeof(*lwork), GFP_NOIO); 2968922dab61SIlya Dryomov if (!lwork) 2969922dab61SIlya Dryomov return NULL; 2970922dab61SIlya Dryomov 2971922dab61SIlya Dryomov INIT_WORK(&lwork->work, workfn); 2972b07d3c4bSIlya Dryomov INIT_LIST_HEAD(&lwork->pending_item); 2973922dab61SIlya Dryomov lwork->lreq = linger_get(lreq); 2974922dab61SIlya Dryomov 2975922dab61SIlya Dryomov return lwork; 2976922dab61SIlya Dryomov } 2977922dab61SIlya Dryomov 2978922dab61SIlya Dryomov static void lwork_free(struct linger_work *lwork) 2979922dab61SIlya Dryomov { 2980922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = lwork->lreq; 2981922dab61SIlya Dryomov 2982b07d3c4bSIlya Dryomov mutex_lock(&lreq->lock); 2983b07d3c4bSIlya Dryomov list_del(&lwork->pending_item); 2984b07d3c4bSIlya Dryomov mutex_unlock(&lreq->lock); 2985b07d3c4bSIlya Dryomov 2986922dab61SIlya Dryomov linger_put(lreq); 2987922dab61SIlya Dryomov kfree(lwork); 2988922dab61SIlya Dryomov } 2989922dab61SIlya Dryomov 2990922dab61SIlya Dryomov static void lwork_queue(struct linger_work *lwork) 2991922dab61SIlya Dryomov { 2992922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = lwork->lreq; 2993922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 2994922dab61SIlya Dryomov 2995922dab61SIlya Dryomov verify_lreq_locked(lreq); 2996b07d3c4bSIlya Dryomov WARN_ON(!list_empty(&lwork->pending_item)); 2997b07d3c4bSIlya Dryomov 2998b07d3c4bSIlya Dryomov lwork->queued_stamp = jiffies; 2999b07d3c4bSIlya Dryomov list_add_tail(&lwork->pending_item, &lreq->pending_lworks); 3000922dab61SIlya Dryomov queue_work(osdc->notify_wq, &lwork->work); 3001922dab61SIlya Dryomov } 3002922dab61SIlya Dryomov 3003922dab61SIlya Dryomov static void do_watch_notify(struct work_struct *w) 3004922dab61SIlya Dryomov { 3005922dab61SIlya Dryomov struct linger_work *lwork = container_of(w, struct linger_work, work); 3006922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = lwork->lreq; 3007922dab61SIlya Dryomov 3008922dab61SIlya Dryomov if (!linger_registered(lreq)) { 3009922dab61SIlya Dryomov dout("%s lreq %p not registered\n", __func__, lreq); 3010922dab61SIlya Dryomov goto out; 3011922dab61SIlya Dryomov } 3012922dab61SIlya Dryomov 301319079203SIlya Dryomov WARN_ON(!lreq->is_watch); 3014922dab61SIlya Dryomov dout("%s lreq %p notify_id %llu notifier_id %llu payload_len %zu\n", 3015922dab61SIlya Dryomov __func__, lreq, lwork->notify.notify_id, lwork->notify.notifier_id, 3016922dab61SIlya Dryomov lwork->notify.payload_len); 3017922dab61SIlya Dryomov lreq->wcb(lreq->data, lwork->notify.notify_id, lreq->linger_id, 3018922dab61SIlya Dryomov lwork->notify.notifier_id, lwork->notify.payload, 3019922dab61SIlya Dryomov lwork->notify.payload_len); 3020922dab61SIlya Dryomov 3021922dab61SIlya Dryomov out: 3022922dab61SIlya Dryomov ceph_msg_put(lwork->notify.msg); 3023922dab61SIlya Dryomov lwork_free(lwork); 3024922dab61SIlya Dryomov } 3025922dab61SIlya Dryomov 3026922dab61SIlya Dryomov static void do_watch_error(struct work_struct *w) 3027922dab61SIlya Dryomov { 3028922dab61SIlya Dryomov struct linger_work *lwork = container_of(w, struct linger_work, work); 3029922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = lwork->lreq; 3030922dab61SIlya Dryomov 3031922dab61SIlya Dryomov if (!linger_registered(lreq)) { 3032922dab61SIlya Dryomov dout("%s lreq %p not registered\n", __func__, lreq); 3033922dab61SIlya Dryomov goto out; 3034922dab61SIlya Dryomov } 3035922dab61SIlya Dryomov 3036922dab61SIlya Dryomov dout("%s lreq %p err %d\n", __func__, lreq, lwork->error.err); 3037922dab61SIlya Dryomov lreq->errcb(lreq->data, lreq->linger_id, lwork->error.err); 3038922dab61SIlya Dryomov 3039922dab61SIlya Dryomov out: 3040922dab61SIlya Dryomov lwork_free(lwork); 3041922dab61SIlya Dryomov } 3042922dab61SIlya Dryomov 3043922dab61SIlya Dryomov static void queue_watch_error(struct ceph_osd_linger_request *lreq) 3044922dab61SIlya Dryomov { 3045922dab61SIlya Dryomov struct linger_work *lwork; 3046922dab61SIlya Dryomov 3047922dab61SIlya Dryomov lwork = lwork_alloc(lreq, do_watch_error); 3048922dab61SIlya Dryomov if (!lwork) { 3049922dab61SIlya Dryomov pr_err("failed to allocate error-lwork\n"); 3050922dab61SIlya Dryomov return; 3051922dab61SIlya Dryomov } 3052922dab61SIlya Dryomov 3053922dab61SIlya Dryomov lwork->error.err = lreq->last_error; 3054922dab61SIlya Dryomov lwork_queue(lwork); 3055922dab61SIlya Dryomov } 3056922dab61SIlya Dryomov 3057922dab61SIlya Dryomov static void linger_reg_commit_complete(struct ceph_osd_linger_request *lreq, 3058922dab61SIlya Dryomov int result) 3059922dab61SIlya Dryomov { 3060922dab61SIlya Dryomov if (!completion_done(&lreq->reg_commit_wait)) { 3061922dab61SIlya Dryomov lreq->reg_commit_error = (result <= 0 ? result : 0); 3062922dab61SIlya Dryomov complete_all(&lreq->reg_commit_wait); 3063922dab61SIlya Dryomov } 3064922dab61SIlya Dryomov } 3065922dab61SIlya Dryomov 3066922dab61SIlya Dryomov static void linger_commit_cb(struct ceph_osd_request *req) 3067922dab61SIlya Dryomov { 3068922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = req->r_priv; 3069922dab61SIlya Dryomov 3070922dab61SIlya Dryomov mutex_lock(&lreq->lock); 307175dbb685SIlya Dryomov if (req != lreq->reg_req) { 307275dbb685SIlya Dryomov dout("%s lreq %p linger_id %llu unknown req (%p != %p)\n", 307375dbb685SIlya Dryomov __func__, lreq, lreq->linger_id, req, lreq->reg_req); 307475dbb685SIlya Dryomov goto out; 307575dbb685SIlya Dryomov } 307675dbb685SIlya Dryomov 3077922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu result %d\n", __func__, lreq, 3078922dab61SIlya Dryomov lreq->linger_id, req->r_result); 3079922dab61SIlya Dryomov linger_reg_commit_complete(lreq, req->r_result); 3080922dab61SIlya Dryomov lreq->committed = true; 3081922dab61SIlya Dryomov 308219079203SIlya Dryomov if (!lreq->is_watch) { 308319079203SIlya Dryomov struct ceph_osd_data *osd_data = 308419079203SIlya Dryomov osd_req_op_data(req, 0, notify, response_data); 308519079203SIlya Dryomov void *p = page_address(osd_data->pages[0]); 308619079203SIlya Dryomov 308719079203SIlya Dryomov WARN_ON(req->r_ops[0].op != CEPH_OSD_OP_NOTIFY || 308819079203SIlya Dryomov osd_data->type != CEPH_OSD_DATA_TYPE_PAGES); 308919079203SIlya Dryomov 309019079203SIlya Dryomov /* make note of the notify_id */ 309119079203SIlya Dryomov if (req->r_ops[0].outdata_len >= sizeof(u64)) { 309219079203SIlya Dryomov lreq->notify_id = ceph_decode_64(&p); 309319079203SIlya Dryomov dout("lreq %p notify_id %llu\n", lreq, 309419079203SIlya Dryomov lreq->notify_id); 309519079203SIlya Dryomov } else { 309619079203SIlya Dryomov dout("lreq %p no notify_id\n", lreq); 309719079203SIlya Dryomov } 309819079203SIlya Dryomov } 309919079203SIlya Dryomov 310075dbb685SIlya Dryomov out: 3101922dab61SIlya Dryomov mutex_unlock(&lreq->lock); 3102922dab61SIlya Dryomov linger_put(lreq); 3103922dab61SIlya Dryomov } 3104922dab61SIlya Dryomov 3105922dab61SIlya Dryomov static int normalize_watch_error(int err) 3106922dab61SIlya Dryomov { 3107922dab61SIlya Dryomov /* 3108922dab61SIlya Dryomov * Translate ENOENT -> ENOTCONN so that a delete->disconnection 3109922dab61SIlya Dryomov * notification and a failure to reconnect because we raced with 3110922dab61SIlya Dryomov * the delete appear the same to the user. 3111922dab61SIlya Dryomov */ 3112922dab61SIlya Dryomov if (err == -ENOENT) 3113922dab61SIlya Dryomov err = -ENOTCONN; 3114922dab61SIlya Dryomov 3115922dab61SIlya Dryomov return err; 3116922dab61SIlya Dryomov } 3117922dab61SIlya Dryomov 3118922dab61SIlya Dryomov static void linger_reconnect_cb(struct ceph_osd_request *req) 3119922dab61SIlya Dryomov { 3120922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = req->r_priv; 3121922dab61SIlya Dryomov 3122922dab61SIlya Dryomov mutex_lock(&lreq->lock); 312375dbb685SIlya Dryomov if (req != lreq->reg_req) { 312475dbb685SIlya Dryomov dout("%s lreq %p linger_id %llu unknown req (%p != %p)\n", 312575dbb685SIlya Dryomov __func__, lreq, lreq->linger_id, req, lreq->reg_req); 312675dbb685SIlya Dryomov goto out; 312775dbb685SIlya Dryomov } 312875dbb685SIlya Dryomov 3129922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu result %d last_error %d\n", __func__, 3130922dab61SIlya Dryomov lreq, lreq->linger_id, req->r_result, lreq->last_error); 3131922dab61SIlya Dryomov if (req->r_result < 0) { 3132922dab61SIlya Dryomov if (!lreq->last_error) { 3133922dab61SIlya Dryomov lreq->last_error = normalize_watch_error(req->r_result); 3134922dab61SIlya Dryomov queue_watch_error(lreq); 3135922dab61SIlya Dryomov } 3136922dab61SIlya Dryomov } 3137922dab61SIlya Dryomov 313875dbb685SIlya Dryomov out: 3139922dab61SIlya Dryomov mutex_unlock(&lreq->lock); 3140922dab61SIlya Dryomov linger_put(lreq); 3141922dab61SIlya Dryomov } 3142922dab61SIlya Dryomov 3143922dab61SIlya Dryomov static void send_linger(struct ceph_osd_linger_request *lreq) 3144922dab61SIlya Dryomov { 314575dbb685SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 314675dbb685SIlya Dryomov struct ceph_osd_request *req; 314775dbb685SIlya Dryomov int ret; 3148922dab61SIlya Dryomov 314975dbb685SIlya Dryomov verify_osdc_wrlocked(osdc); 315075dbb685SIlya Dryomov mutex_lock(&lreq->lock); 3151922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu\n", __func__, lreq, lreq->linger_id); 3152922dab61SIlya Dryomov 315375dbb685SIlya Dryomov if (lreq->reg_req) { 315475dbb685SIlya Dryomov if (lreq->reg_req->r_osd) 315575dbb685SIlya Dryomov cancel_linger_request(lreq->reg_req); 315675dbb685SIlya Dryomov ceph_osdc_put_request(lreq->reg_req); 315775dbb685SIlya Dryomov } 3158922dab61SIlya Dryomov 315975dbb685SIlya Dryomov req = ceph_osdc_alloc_request(osdc, NULL, 1, true, GFP_NOIO); 316075dbb685SIlya Dryomov BUG_ON(!req); 316175dbb685SIlya Dryomov 31625133ba8fSIlya Dryomov target_copy(&req->r_t, &lreq->t); 3163922dab61SIlya Dryomov req->r_mtime = lreq->mtime; 3164922dab61SIlya Dryomov 316519079203SIlya Dryomov if (lreq->is_watch && lreq->committed) { 316675dbb685SIlya Dryomov osd_req_op_watch_init(req, 0, CEPH_OSD_WATCH_OP_RECONNECT, 316775dbb685SIlya Dryomov lreq->linger_id, ++lreq->register_gen); 3168922dab61SIlya Dryomov dout("lreq %p reconnect register_gen %u\n", lreq, 316975dbb685SIlya Dryomov req->r_ops[0].watch.gen); 3170922dab61SIlya Dryomov req->r_callback = linger_reconnect_cb; 3171922dab61SIlya Dryomov } else { 317275dbb685SIlya Dryomov if (lreq->is_watch) { 317375dbb685SIlya Dryomov osd_req_op_watch_init(req, 0, CEPH_OSD_WATCH_OP_WATCH, 317475dbb685SIlya Dryomov lreq->linger_id, 0); 317575dbb685SIlya Dryomov } else { 317619079203SIlya Dryomov lreq->notify_id = 0; 317775dbb685SIlya Dryomov 317875dbb685SIlya Dryomov refcount_inc(&lreq->request_pl->refcnt); 317975dbb685SIlya Dryomov osd_req_op_notify_init(req, 0, lreq->linger_id, 318075dbb685SIlya Dryomov lreq->request_pl); 318175dbb685SIlya Dryomov ceph_osd_data_pages_init( 318275dbb685SIlya Dryomov osd_req_op_data(req, 0, notify, response_data), 318375dbb685SIlya Dryomov lreq->notify_id_pages, PAGE_SIZE, 0, false, false); 318475dbb685SIlya Dryomov } 3185922dab61SIlya Dryomov dout("lreq %p register\n", lreq); 3186922dab61SIlya Dryomov req->r_callback = linger_commit_cb; 3187922dab61SIlya Dryomov } 318875dbb685SIlya Dryomov 318975dbb685SIlya Dryomov ret = ceph_osdc_alloc_messages(req, GFP_NOIO); 319075dbb685SIlya Dryomov BUG_ON(ret); 3191922dab61SIlya Dryomov 3192922dab61SIlya Dryomov req->r_priv = linger_get(lreq); 3193922dab61SIlya Dryomov req->r_linger = true; 319475dbb685SIlya Dryomov lreq->reg_req = req; 319575dbb685SIlya Dryomov mutex_unlock(&lreq->lock); 3196922dab61SIlya Dryomov 3197922dab61SIlya Dryomov submit_request(req, true); 3198922dab61SIlya Dryomov } 3199922dab61SIlya Dryomov 3200922dab61SIlya Dryomov static void linger_ping_cb(struct ceph_osd_request *req) 3201922dab61SIlya Dryomov { 3202922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = req->r_priv; 3203922dab61SIlya Dryomov 3204922dab61SIlya Dryomov mutex_lock(&lreq->lock); 320575dbb685SIlya Dryomov if (req != lreq->ping_req) { 320675dbb685SIlya Dryomov dout("%s lreq %p linger_id %llu unknown req (%p != %p)\n", 320775dbb685SIlya Dryomov __func__, lreq, lreq->linger_id, req, lreq->ping_req); 320875dbb685SIlya Dryomov goto out; 320975dbb685SIlya Dryomov } 321075dbb685SIlya Dryomov 3211922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu result %d ping_sent %lu last_error %d\n", 3212922dab61SIlya Dryomov __func__, lreq, lreq->linger_id, req->r_result, lreq->ping_sent, 3213922dab61SIlya Dryomov lreq->last_error); 3214922dab61SIlya Dryomov if (lreq->register_gen == req->r_ops[0].watch.gen) { 3215b07d3c4bSIlya Dryomov if (!req->r_result) { 3216b07d3c4bSIlya Dryomov lreq->watch_valid_thru = lreq->ping_sent; 3217b07d3c4bSIlya Dryomov } else if (!lreq->last_error) { 3218922dab61SIlya Dryomov lreq->last_error = normalize_watch_error(req->r_result); 3219922dab61SIlya Dryomov queue_watch_error(lreq); 3220922dab61SIlya Dryomov } 3221922dab61SIlya Dryomov } else { 3222922dab61SIlya Dryomov dout("lreq %p register_gen %u ignoring old pong %u\n", lreq, 3223922dab61SIlya Dryomov lreq->register_gen, req->r_ops[0].watch.gen); 3224922dab61SIlya Dryomov } 3225922dab61SIlya Dryomov 322675dbb685SIlya Dryomov out: 3227922dab61SIlya Dryomov mutex_unlock(&lreq->lock); 3228922dab61SIlya Dryomov linger_put(lreq); 3229922dab61SIlya Dryomov } 3230922dab61SIlya Dryomov 3231922dab61SIlya Dryomov static void send_linger_ping(struct ceph_osd_linger_request *lreq) 3232922dab61SIlya Dryomov { 3233922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 323475dbb685SIlya Dryomov struct ceph_osd_request *req; 323575dbb685SIlya Dryomov int ret; 3236922dab61SIlya Dryomov 3237b7ec35b3SIlya Dryomov if (ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSERD)) { 3238922dab61SIlya Dryomov dout("%s PAUSERD\n", __func__); 3239922dab61SIlya Dryomov return; 3240922dab61SIlya Dryomov } 3241922dab61SIlya Dryomov 3242922dab61SIlya Dryomov lreq->ping_sent = jiffies; 3243922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu ping_sent %lu register_gen %u\n", 3244922dab61SIlya Dryomov __func__, lreq, lreq->linger_id, lreq->ping_sent, 3245922dab61SIlya Dryomov lreq->register_gen); 3246922dab61SIlya Dryomov 324775dbb685SIlya Dryomov if (lreq->ping_req) { 324875dbb685SIlya Dryomov if (lreq->ping_req->r_osd) 324975dbb685SIlya Dryomov cancel_linger_request(lreq->ping_req); 325075dbb685SIlya Dryomov ceph_osdc_put_request(lreq->ping_req); 325175dbb685SIlya Dryomov } 3252922dab61SIlya Dryomov 325375dbb685SIlya Dryomov req = ceph_osdc_alloc_request(osdc, NULL, 1, true, GFP_NOIO); 325475dbb685SIlya Dryomov BUG_ON(!req); 325575dbb685SIlya Dryomov 3256922dab61SIlya Dryomov target_copy(&req->r_t, &lreq->t); 325775dbb685SIlya Dryomov osd_req_op_watch_init(req, 0, CEPH_OSD_WATCH_OP_PING, lreq->linger_id, 325875dbb685SIlya Dryomov lreq->register_gen); 3259922dab61SIlya Dryomov req->r_callback = linger_ping_cb; 326075dbb685SIlya Dryomov 326175dbb685SIlya Dryomov ret = ceph_osdc_alloc_messages(req, GFP_NOIO); 326275dbb685SIlya Dryomov BUG_ON(ret); 326375dbb685SIlya Dryomov 3264922dab61SIlya Dryomov req->r_priv = linger_get(lreq); 3265922dab61SIlya Dryomov req->r_linger = true; 326675dbb685SIlya Dryomov lreq->ping_req = req; 3267922dab61SIlya Dryomov 3268922dab61SIlya Dryomov ceph_osdc_get_request(req); 3269922dab61SIlya Dryomov account_request(req); 3270922dab61SIlya Dryomov req->r_tid = atomic64_inc_return(&osdc->last_tid); 3271922dab61SIlya Dryomov link_request(lreq->osd, req); 3272922dab61SIlya Dryomov send_request(req); 3273922dab61SIlya Dryomov } 3274922dab61SIlya Dryomov 3275922dab61SIlya Dryomov static void linger_submit(struct ceph_osd_linger_request *lreq) 3276922dab61SIlya Dryomov { 3277922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 3278922dab61SIlya Dryomov struct ceph_osd *osd; 3279922dab61SIlya Dryomov 328081c65213SIlya Dryomov down_write(&osdc->lock); 328181c65213SIlya Dryomov linger_register(lreq); 328281c65213SIlya Dryomov 32838edf84baSIlya Dryomov calc_target(osdc, &lreq->t, false); 3284922dab61SIlya Dryomov osd = lookup_create_osd(osdc, lreq->t.osd, true); 3285922dab61SIlya Dryomov link_linger(osd, lreq); 3286922dab61SIlya Dryomov 3287922dab61SIlya Dryomov send_linger(lreq); 328881c65213SIlya Dryomov up_write(&osdc->lock); 3289922dab61SIlya Dryomov } 3290922dab61SIlya Dryomov 32914609245eSIlya Dryomov static void cancel_linger_map_check(struct ceph_osd_linger_request *lreq) 32924609245eSIlya Dryomov { 32934609245eSIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 32944609245eSIlya Dryomov struct ceph_osd_linger_request *lookup_lreq; 32954609245eSIlya Dryomov 32964609245eSIlya Dryomov verify_osdc_wrlocked(osdc); 32974609245eSIlya Dryomov 32984609245eSIlya Dryomov lookup_lreq = lookup_linger_mc(&osdc->linger_map_checks, 32994609245eSIlya Dryomov lreq->linger_id); 33004609245eSIlya Dryomov if (!lookup_lreq) 33014609245eSIlya Dryomov return; 33024609245eSIlya Dryomov 33034609245eSIlya Dryomov WARN_ON(lookup_lreq != lreq); 33044609245eSIlya Dryomov erase_linger_mc(&osdc->linger_map_checks, lreq); 33054609245eSIlya Dryomov linger_put(lreq); 33064609245eSIlya Dryomov } 33074609245eSIlya Dryomov 3308922dab61SIlya Dryomov /* 3309922dab61SIlya Dryomov * @lreq has to be both registered and linked. 3310922dab61SIlya Dryomov */ 3311922dab61SIlya Dryomov static void __linger_cancel(struct ceph_osd_linger_request *lreq) 3312922dab61SIlya Dryomov { 331375dbb685SIlya Dryomov if (lreq->ping_req && lreq->ping_req->r_osd) 3314922dab61SIlya Dryomov cancel_linger_request(lreq->ping_req); 331575dbb685SIlya Dryomov if (lreq->reg_req && lreq->reg_req->r_osd) 3316922dab61SIlya Dryomov cancel_linger_request(lreq->reg_req); 33174609245eSIlya Dryomov cancel_linger_map_check(lreq); 3318922dab61SIlya Dryomov unlink_linger(lreq->osd, lreq); 3319922dab61SIlya Dryomov linger_unregister(lreq); 3320922dab61SIlya Dryomov } 3321922dab61SIlya Dryomov 3322922dab61SIlya Dryomov static void linger_cancel(struct ceph_osd_linger_request *lreq) 3323922dab61SIlya Dryomov { 3324922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 3325922dab61SIlya Dryomov 3326922dab61SIlya Dryomov down_write(&osdc->lock); 3327922dab61SIlya Dryomov if (__linger_registered(lreq)) 3328922dab61SIlya Dryomov __linger_cancel(lreq); 3329922dab61SIlya Dryomov up_write(&osdc->lock); 3330922dab61SIlya Dryomov } 3331922dab61SIlya Dryomov 33324609245eSIlya Dryomov static void send_linger_map_check(struct ceph_osd_linger_request *lreq); 33334609245eSIlya Dryomov 33344609245eSIlya Dryomov static void check_linger_pool_dne(struct ceph_osd_linger_request *lreq) 33354609245eSIlya Dryomov { 33364609245eSIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 33374609245eSIlya Dryomov struct ceph_osdmap *map = osdc->osdmap; 33384609245eSIlya Dryomov 33394609245eSIlya Dryomov verify_osdc_wrlocked(osdc); 33404609245eSIlya Dryomov WARN_ON(!map->epoch); 33414609245eSIlya Dryomov 33424609245eSIlya Dryomov if (lreq->register_gen) { 33434609245eSIlya Dryomov lreq->map_dne_bound = map->epoch; 33444609245eSIlya Dryomov dout("%s lreq %p linger_id %llu pool disappeared\n", __func__, 33454609245eSIlya Dryomov lreq, lreq->linger_id); 33464609245eSIlya Dryomov } else { 33474609245eSIlya Dryomov dout("%s lreq %p linger_id %llu map_dne_bound %u have %u\n", 33484609245eSIlya Dryomov __func__, lreq, lreq->linger_id, lreq->map_dne_bound, 33494609245eSIlya Dryomov map->epoch); 33504609245eSIlya Dryomov } 33514609245eSIlya Dryomov 33524609245eSIlya Dryomov if (lreq->map_dne_bound) { 33534609245eSIlya Dryomov if (map->epoch >= lreq->map_dne_bound) { 33544609245eSIlya Dryomov /* we had a new enough map */ 33554609245eSIlya Dryomov pr_info("linger_id %llu pool does not exist\n", 33564609245eSIlya Dryomov lreq->linger_id); 33574609245eSIlya Dryomov linger_reg_commit_complete(lreq, -ENOENT); 33584609245eSIlya Dryomov __linger_cancel(lreq); 33594609245eSIlya Dryomov } 33604609245eSIlya Dryomov } else { 33614609245eSIlya Dryomov send_linger_map_check(lreq); 33624609245eSIlya Dryomov } 33634609245eSIlya Dryomov } 33644609245eSIlya Dryomov 33654609245eSIlya Dryomov static void linger_map_check_cb(struct ceph_mon_generic_request *greq) 33664609245eSIlya Dryomov { 33674609245eSIlya Dryomov struct ceph_osd_client *osdc = &greq->monc->client->osdc; 33684609245eSIlya Dryomov struct ceph_osd_linger_request *lreq; 33694609245eSIlya Dryomov u64 linger_id = greq->private_data; 33704609245eSIlya Dryomov 33714609245eSIlya Dryomov WARN_ON(greq->result || !greq->u.newest); 33724609245eSIlya Dryomov 33734609245eSIlya Dryomov down_write(&osdc->lock); 33744609245eSIlya Dryomov lreq = lookup_linger_mc(&osdc->linger_map_checks, linger_id); 33754609245eSIlya Dryomov if (!lreq) { 33764609245eSIlya Dryomov dout("%s linger_id %llu dne\n", __func__, linger_id); 33774609245eSIlya Dryomov goto out_unlock; 33784609245eSIlya Dryomov } 33794609245eSIlya Dryomov 33804609245eSIlya Dryomov dout("%s lreq %p linger_id %llu map_dne_bound %u newest %llu\n", 33814609245eSIlya Dryomov __func__, lreq, lreq->linger_id, lreq->map_dne_bound, 33824609245eSIlya Dryomov greq->u.newest); 33834609245eSIlya Dryomov if (!lreq->map_dne_bound) 33844609245eSIlya Dryomov lreq->map_dne_bound = greq->u.newest; 33854609245eSIlya Dryomov erase_linger_mc(&osdc->linger_map_checks, lreq); 33864609245eSIlya Dryomov check_linger_pool_dne(lreq); 33874609245eSIlya Dryomov 33884609245eSIlya Dryomov linger_put(lreq); 33894609245eSIlya Dryomov out_unlock: 33904609245eSIlya Dryomov up_write(&osdc->lock); 33914609245eSIlya Dryomov } 33924609245eSIlya Dryomov 33934609245eSIlya Dryomov static void send_linger_map_check(struct ceph_osd_linger_request *lreq) 33944609245eSIlya Dryomov { 33954609245eSIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 33964609245eSIlya Dryomov struct ceph_osd_linger_request *lookup_lreq; 33974609245eSIlya Dryomov int ret; 33984609245eSIlya Dryomov 33994609245eSIlya Dryomov verify_osdc_wrlocked(osdc); 34004609245eSIlya Dryomov 34014609245eSIlya Dryomov lookup_lreq = lookup_linger_mc(&osdc->linger_map_checks, 34024609245eSIlya Dryomov lreq->linger_id); 34034609245eSIlya Dryomov if (lookup_lreq) { 34044609245eSIlya Dryomov WARN_ON(lookup_lreq != lreq); 34054609245eSIlya Dryomov return; 34064609245eSIlya Dryomov } 34074609245eSIlya Dryomov 34084609245eSIlya Dryomov linger_get(lreq); 34094609245eSIlya Dryomov insert_linger_mc(&osdc->linger_map_checks, lreq); 34104609245eSIlya Dryomov ret = ceph_monc_get_version_async(&osdc->client->monc, "osdmap", 34114609245eSIlya Dryomov linger_map_check_cb, lreq->linger_id); 34124609245eSIlya Dryomov WARN_ON(ret); 34134609245eSIlya Dryomov } 34144609245eSIlya Dryomov 3415922dab61SIlya Dryomov static int linger_reg_commit_wait(struct ceph_osd_linger_request *lreq) 3416922dab61SIlya Dryomov { 3417922dab61SIlya Dryomov int ret; 3418922dab61SIlya Dryomov 3419922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu\n", __func__, lreq, lreq->linger_id); 3420e6e28432SIlya Dryomov ret = wait_for_completion_killable(&lreq->reg_commit_wait); 3421922dab61SIlya Dryomov return ret ?: lreq->reg_commit_error; 3422922dab61SIlya Dryomov } 3423922dab61SIlya Dryomov 3424e6e28432SIlya Dryomov static int linger_notify_finish_wait(struct ceph_osd_linger_request *lreq, 3425e6e28432SIlya Dryomov unsigned long timeout) 342619079203SIlya Dryomov { 3427e6e28432SIlya Dryomov long left; 342819079203SIlya Dryomov 342919079203SIlya Dryomov dout("%s lreq %p linger_id %llu\n", __func__, lreq, lreq->linger_id); 3430e6e28432SIlya Dryomov left = wait_for_completion_killable_timeout(&lreq->notify_finish_wait, 3431e6e28432SIlya Dryomov ceph_timeout_jiffies(timeout)); 3432e6e28432SIlya Dryomov if (left <= 0) 3433e6e28432SIlya Dryomov left = left ?: -ETIMEDOUT; 3434e6e28432SIlya Dryomov else 3435e6e28432SIlya Dryomov left = lreq->notify_finish_error; /* completed */ 3436e6e28432SIlya Dryomov 3437e6e28432SIlya Dryomov return left; 343819079203SIlya Dryomov } 343919079203SIlya Dryomov 3440922dab61SIlya Dryomov /* 3441fbca9635SIlya Dryomov * Timeout callback, called every N seconds. When 1 or more OSD 3442fbca9635SIlya Dryomov * requests has been active for more than N seconds, we send a keepalive 3443fbca9635SIlya Dryomov * (tag + timestamp) to its OSD to ensure any communications channel 3444fbca9635SIlya Dryomov * reset is detected. 34453d14c5d2SYehuda Sadeh */ 34463d14c5d2SYehuda Sadeh static void handle_timeout(struct work_struct *work) 34473d14c5d2SYehuda Sadeh { 34483d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 34493d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, timeout_work.work); 3450a319bf56SIlya Dryomov struct ceph_options *opts = osdc->client->options; 34515aea3dcdSIlya Dryomov unsigned long cutoff = jiffies - opts->osd_keepalive_timeout; 34527cc5e38fSIlya Dryomov unsigned long expiry_cutoff = jiffies - opts->osd_request_timeout; 34535aea3dcdSIlya Dryomov LIST_HEAD(slow_osds); 34545aea3dcdSIlya Dryomov struct rb_node *n, *p; 34553d14c5d2SYehuda Sadeh 34565aea3dcdSIlya Dryomov dout("%s osdc %p\n", __func__, osdc); 34575aea3dcdSIlya Dryomov down_write(&osdc->lock); 34583d14c5d2SYehuda Sadeh 34593d14c5d2SYehuda Sadeh /* 34603d14c5d2SYehuda Sadeh * ping osds that are a bit slow. this ensures that if there 34613d14c5d2SYehuda Sadeh * is a break in the TCP connection we will notice, and reopen 34623d14c5d2SYehuda Sadeh * a connection with that osd (from the fault callback). 34633d14c5d2SYehuda Sadeh */ 34645aea3dcdSIlya Dryomov for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { 34655aea3dcdSIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 34665aea3dcdSIlya Dryomov bool found = false; 34673d14c5d2SYehuda Sadeh 34687cc5e38fSIlya Dryomov for (p = rb_first(&osd->o_requests); p; ) { 34695aea3dcdSIlya Dryomov struct ceph_osd_request *req = 34705aea3dcdSIlya Dryomov rb_entry(p, struct ceph_osd_request, r_node); 34715aea3dcdSIlya Dryomov 34727cc5e38fSIlya Dryomov p = rb_next(p); /* abort_request() */ 34737cc5e38fSIlya Dryomov 34745aea3dcdSIlya Dryomov if (time_before(req->r_stamp, cutoff)) { 34755aea3dcdSIlya Dryomov dout(" req %p tid %llu on osd%d is laggy\n", 34765aea3dcdSIlya Dryomov req, req->r_tid, osd->o_osd); 34775aea3dcdSIlya Dryomov found = true; 34785aea3dcdSIlya Dryomov } 34797cc5e38fSIlya Dryomov if (opts->osd_request_timeout && 34807cc5e38fSIlya Dryomov time_before(req->r_start_stamp, expiry_cutoff)) { 34817cc5e38fSIlya Dryomov pr_err_ratelimited("tid %llu on osd%d timeout\n", 34827cc5e38fSIlya Dryomov req->r_tid, osd->o_osd); 34837cc5e38fSIlya Dryomov abort_request(req, -ETIMEDOUT); 34847cc5e38fSIlya Dryomov } 34855aea3dcdSIlya Dryomov } 3486922dab61SIlya Dryomov for (p = rb_first(&osd->o_linger_requests); p; p = rb_next(p)) { 3487922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = 3488922dab61SIlya Dryomov rb_entry(p, struct ceph_osd_linger_request, node); 3489922dab61SIlya Dryomov 3490922dab61SIlya Dryomov dout(" lreq %p linger_id %llu is served by osd%d\n", 3491922dab61SIlya Dryomov lreq, lreq->linger_id, osd->o_osd); 3492922dab61SIlya Dryomov found = true; 3493922dab61SIlya Dryomov 3494922dab61SIlya Dryomov mutex_lock(&lreq->lock); 349519079203SIlya Dryomov if (lreq->is_watch && lreq->committed && !lreq->last_error) 3496922dab61SIlya Dryomov send_linger_ping(lreq); 3497922dab61SIlya Dryomov mutex_unlock(&lreq->lock); 3498922dab61SIlya Dryomov } 34995aea3dcdSIlya Dryomov 35005aea3dcdSIlya Dryomov if (found) 35013d14c5d2SYehuda Sadeh list_move_tail(&osd->o_keepalive_item, &slow_osds); 35023d14c5d2SYehuda Sadeh } 35035aea3dcdSIlya Dryomov 35047cc5e38fSIlya Dryomov if (opts->osd_request_timeout) { 35057cc5e38fSIlya Dryomov for (p = rb_first(&osdc->homeless_osd.o_requests); p; ) { 35067cc5e38fSIlya Dryomov struct ceph_osd_request *req = 35077cc5e38fSIlya Dryomov rb_entry(p, struct ceph_osd_request, r_node); 35087cc5e38fSIlya Dryomov 35097cc5e38fSIlya Dryomov p = rb_next(p); /* abort_request() */ 35107cc5e38fSIlya Dryomov 35117cc5e38fSIlya Dryomov if (time_before(req->r_start_stamp, expiry_cutoff)) { 35127cc5e38fSIlya Dryomov pr_err_ratelimited("tid %llu on osd%d timeout\n", 35137cc5e38fSIlya Dryomov req->r_tid, osdc->homeless_osd.o_osd); 35147cc5e38fSIlya Dryomov abort_request(req, -ETIMEDOUT); 35157cc5e38fSIlya Dryomov } 35167cc5e38fSIlya Dryomov } 35177cc5e38fSIlya Dryomov } 35187cc5e38fSIlya Dryomov 35195aea3dcdSIlya Dryomov if (atomic_read(&osdc->num_homeless) || !list_empty(&slow_osds)) 35205aea3dcdSIlya Dryomov maybe_request_map(osdc); 35215aea3dcdSIlya Dryomov 35223d14c5d2SYehuda Sadeh while (!list_empty(&slow_osds)) { 35235aea3dcdSIlya Dryomov struct ceph_osd *osd = list_first_entry(&slow_osds, 35245aea3dcdSIlya Dryomov struct ceph_osd, 35253d14c5d2SYehuda Sadeh o_keepalive_item); 35263d14c5d2SYehuda Sadeh list_del_init(&osd->o_keepalive_item); 35273d14c5d2SYehuda Sadeh ceph_con_keepalive(&osd->o_con); 35283d14c5d2SYehuda Sadeh } 35293d14c5d2SYehuda Sadeh 35305aea3dcdSIlya Dryomov up_write(&osdc->lock); 3531fbca9635SIlya Dryomov schedule_delayed_work(&osdc->timeout_work, 3532fbca9635SIlya Dryomov osdc->client->options->osd_keepalive_timeout); 35333d14c5d2SYehuda Sadeh } 35343d14c5d2SYehuda Sadeh 35353d14c5d2SYehuda Sadeh static void handle_osds_timeout(struct work_struct *work) 35363d14c5d2SYehuda Sadeh { 35373d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 35383d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, 35393d14c5d2SYehuda Sadeh osds_timeout_work.work); 3540a319bf56SIlya Dryomov unsigned long delay = osdc->client->options->osd_idle_ttl / 4; 354142a2c09fSIlya Dryomov struct ceph_osd *osd, *nosd; 35423d14c5d2SYehuda Sadeh 354342a2c09fSIlya Dryomov dout("%s osdc %p\n", __func__, osdc); 35445aea3dcdSIlya Dryomov down_write(&osdc->lock); 354542a2c09fSIlya Dryomov list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { 354642a2c09fSIlya Dryomov if (time_before(jiffies, osd->lru_ttl)) 354742a2c09fSIlya Dryomov break; 354842a2c09fSIlya Dryomov 35495aea3dcdSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_requests)); 3550922dab61SIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_linger_requests)); 35515aea3dcdSIlya Dryomov close_osd(osd); 355242a2c09fSIlya Dryomov } 355342a2c09fSIlya Dryomov 35545aea3dcdSIlya Dryomov up_write(&osdc->lock); 35553d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->osds_timeout_work, 35563d14c5d2SYehuda Sadeh round_jiffies_relative(delay)); 35573d14c5d2SYehuda Sadeh } 35583d14c5d2SYehuda Sadeh 3559205ee118SIlya Dryomov static int ceph_oloc_decode(void **p, void *end, 3560205ee118SIlya Dryomov struct ceph_object_locator *oloc) 3561205ee118SIlya Dryomov { 3562205ee118SIlya Dryomov u8 struct_v, struct_cv; 3563205ee118SIlya Dryomov u32 len; 3564205ee118SIlya Dryomov void *struct_end; 3565205ee118SIlya Dryomov int ret = 0; 3566205ee118SIlya Dryomov 3567205ee118SIlya Dryomov ceph_decode_need(p, end, 1 + 1 + 4, e_inval); 3568205ee118SIlya Dryomov struct_v = ceph_decode_8(p); 3569205ee118SIlya Dryomov struct_cv = ceph_decode_8(p); 3570205ee118SIlya Dryomov if (struct_v < 3) { 3571205ee118SIlya Dryomov pr_warn("got v %d < 3 cv %d of ceph_object_locator\n", 3572205ee118SIlya Dryomov struct_v, struct_cv); 3573205ee118SIlya Dryomov goto e_inval; 3574205ee118SIlya Dryomov } 3575205ee118SIlya Dryomov if (struct_cv > 6) { 3576205ee118SIlya Dryomov pr_warn("got v %d cv %d > 6 of ceph_object_locator\n", 3577205ee118SIlya Dryomov struct_v, struct_cv); 3578205ee118SIlya Dryomov goto e_inval; 3579205ee118SIlya Dryomov } 3580205ee118SIlya Dryomov len = ceph_decode_32(p); 3581205ee118SIlya Dryomov ceph_decode_need(p, end, len, e_inval); 3582205ee118SIlya Dryomov struct_end = *p + len; 3583205ee118SIlya Dryomov 3584205ee118SIlya Dryomov oloc->pool = ceph_decode_64(p); 3585205ee118SIlya Dryomov *p += 4; /* skip preferred */ 3586205ee118SIlya Dryomov 3587205ee118SIlya Dryomov len = ceph_decode_32(p); 3588205ee118SIlya Dryomov if (len > 0) { 3589205ee118SIlya Dryomov pr_warn("ceph_object_locator::key is set\n"); 3590205ee118SIlya Dryomov goto e_inval; 3591205ee118SIlya Dryomov } 3592205ee118SIlya Dryomov 3593205ee118SIlya Dryomov if (struct_v >= 5) { 3594cd08e0a2SYan, Zheng bool changed = false; 3595cd08e0a2SYan, Zheng 3596205ee118SIlya Dryomov len = ceph_decode_32(p); 3597205ee118SIlya Dryomov if (len > 0) { 359830c156d9SYan, Zheng ceph_decode_need(p, end, len, e_inval); 3599cd08e0a2SYan, Zheng if (!oloc->pool_ns || 3600cd08e0a2SYan, Zheng ceph_compare_string(oloc->pool_ns, *p, len)) 3601cd08e0a2SYan, Zheng changed = true; 360230c156d9SYan, Zheng *p += len; 3603cd08e0a2SYan, Zheng } else { 3604cd08e0a2SYan, Zheng if (oloc->pool_ns) 3605cd08e0a2SYan, Zheng changed = true; 3606cd08e0a2SYan, Zheng } 3607cd08e0a2SYan, Zheng if (changed) { 3608cd08e0a2SYan, Zheng /* redirect changes namespace */ 3609cd08e0a2SYan, Zheng pr_warn("ceph_object_locator::nspace is changed\n"); 3610cd08e0a2SYan, Zheng goto e_inval; 3611205ee118SIlya Dryomov } 3612205ee118SIlya Dryomov } 3613205ee118SIlya Dryomov 3614205ee118SIlya Dryomov if (struct_v >= 6) { 3615205ee118SIlya Dryomov s64 hash = ceph_decode_64(p); 3616205ee118SIlya Dryomov if (hash != -1) { 3617205ee118SIlya Dryomov pr_warn("ceph_object_locator::hash is set\n"); 3618205ee118SIlya Dryomov goto e_inval; 3619205ee118SIlya Dryomov } 3620205ee118SIlya Dryomov } 3621205ee118SIlya Dryomov 3622205ee118SIlya Dryomov /* skip the rest */ 3623205ee118SIlya Dryomov *p = struct_end; 3624205ee118SIlya Dryomov out: 3625205ee118SIlya Dryomov return ret; 3626205ee118SIlya Dryomov 3627205ee118SIlya Dryomov e_inval: 3628205ee118SIlya Dryomov ret = -EINVAL; 3629205ee118SIlya Dryomov goto out; 3630205ee118SIlya Dryomov } 3631205ee118SIlya Dryomov 3632205ee118SIlya Dryomov static int ceph_redirect_decode(void **p, void *end, 3633205ee118SIlya Dryomov struct ceph_request_redirect *redir) 3634205ee118SIlya Dryomov { 3635205ee118SIlya Dryomov u8 struct_v, struct_cv; 3636205ee118SIlya Dryomov u32 len; 3637205ee118SIlya Dryomov void *struct_end; 3638205ee118SIlya Dryomov int ret; 3639205ee118SIlya Dryomov 3640205ee118SIlya Dryomov ceph_decode_need(p, end, 1 + 1 + 4, e_inval); 3641205ee118SIlya Dryomov struct_v = ceph_decode_8(p); 3642205ee118SIlya Dryomov struct_cv = ceph_decode_8(p); 3643205ee118SIlya Dryomov if (struct_cv > 1) { 3644205ee118SIlya Dryomov pr_warn("got v %d cv %d > 1 of ceph_request_redirect\n", 3645205ee118SIlya Dryomov struct_v, struct_cv); 3646205ee118SIlya Dryomov goto e_inval; 3647205ee118SIlya Dryomov } 3648205ee118SIlya Dryomov len = ceph_decode_32(p); 3649205ee118SIlya Dryomov ceph_decode_need(p, end, len, e_inval); 3650205ee118SIlya Dryomov struct_end = *p + len; 3651205ee118SIlya Dryomov 3652205ee118SIlya Dryomov ret = ceph_oloc_decode(p, end, &redir->oloc); 3653205ee118SIlya Dryomov if (ret) 3654205ee118SIlya Dryomov goto out; 3655205ee118SIlya Dryomov 3656205ee118SIlya Dryomov len = ceph_decode_32(p); 3657205ee118SIlya Dryomov if (len > 0) { 3658205ee118SIlya Dryomov pr_warn("ceph_request_redirect::object_name is set\n"); 3659205ee118SIlya Dryomov goto e_inval; 3660205ee118SIlya Dryomov } 3661205ee118SIlya Dryomov 3662205ee118SIlya Dryomov /* skip the rest */ 3663205ee118SIlya Dryomov *p = struct_end; 3664205ee118SIlya Dryomov out: 3665205ee118SIlya Dryomov return ret; 3666205ee118SIlya Dryomov 3667205ee118SIlya Dryomov e_inval: 3668205ee118SIlya Dryomov ret = -EINVAL; 3669205ee118SIlya Dryomov goto out; 3670205ee118SIlya Dryomov } 3671205ee118SIlya Dryomov 3672fe5da05eSIlya Dryomov struct MOSDOpReply { 3673fe5da05eSIlya Dryomov struct ceph_pg pgid; 3674fe5da05eSIlya Dryomov u64 flags; 3675fe5da05eSIlya Dryomov int result; 3676fe5da05eSIlya Dryomov u32 epoch; 3677fe5da05eSIlya Dryomov int num_ops; 3678fe5da05eSIlya Dryomov u32 outdata_len[CEPH_OSD_MAX_OPS]; 3679fe5da05eSIlya Dryomov s32 rval[CEPH_OSD_MAX_OPS]; 3680fe5da05eSIlya Dryomov int retry_attempt; 3681fe5da05eSIlya Dryomov struct ceph_eversion replay_version; 3682fe5da05eSIlya Dryomov u64 user_version; 3683fe5da05eSIlya Dryomov struct ceph_request_redirect redirect; 3684fe5da05eSIlya Dryomov }; 368525845472SSage Weil 3686fe5da05eSIlya Dryomov static int decode_MOSDOpReply(const struct ceph_msg *msg, struct MOSDOpReply *m) 36873d14c5d2SYehuda Sadeh { 3688fe5da05eSIlya Dryomov void *p = msg->front.iov_base; 3689fe5da05eSIlya Dryomov void *const end = p + msg->front.iov_len; 3690fe5da05eSIlya Dryomov u16 version = le16_to_cpu(msg->hdr.version); 3691fe5da05eSIlya Dryomov struct ceph_eversion bad_replay_version; 3692b0b31a8fSIlya Dryomov u8 decode_redir; 3693fe5da05eSIlya Dryomov u32 len; 3694fe5da05eSIlya Dryomov int ret; 3695fe5da05eSIlya Dryomov int i; 36963d14c5d2SYehuda Sadeh 3697fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, len, e_inval); 3698fe5da05eSIlya Dryomov ceph_decode_need(&p, end, len, e_inval); 3699fe5da05eSIlya Dryomov p += len; /* skip oid */ 37001b83bef2SSage Weil 3701fe5da05eSIlya Dryomov ret = ceph_decode_pgid(&p, end, &m->pgid); 3702fe5da05eSIlya Dryomov if (ret) 3703fe5da05eSIlya Dryomov return ret; 37041b83bef2SSage Weil 3705fe5da05eSIlya Dryomov ceph_decode_64_safe(&p, end, m->flags, e_inval); 3706fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->result, e_inval); 3707fe5da05eSIlya Dryomov ceph_decode_need(&p, end, sizeof(bad_replay_version), e_inval); 3708fe5da05eSIlya Dryomov memcpy(&bad_replay_version, p, sizeof(bad_replay_version)); 3709fe5da05eSIlya Dryomov p += sizeof(bad_replay_version); 3710fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->epoch, e_inval); 37111b83bef2SSage Weil 3712fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->num_ops, e_inval); 3713fe5da05eSIlya Dryomov if (m->num_ops > ARRAY_SIZE(m->outdata_len)) 3714fe5da05eSIlya Dryomov goto e_inval; 37151b83bef2SSage Weil 3716fe5da05eSIlya Dryomov ceph_decode_need(&p, end, m->num_ops * sizeof(struct ceph_osd_op), 3717fe5da05eSIlya Dryomov e_inval); 3718fe5da05eSIlya Dryomov for (i = 0; i < m->num_ops; i++) { 37191b83bef2SSage Weil struct ceph_osd_op *op = p; 37201b83bef2SSage Weil 3721fe5da05eSIlya Dryomov m->outdata_len[i] = le32_to_cpu(op->payload_len); 37221b83bef2SSage Weil p += sizeof(*op); 37231b83bef2SSage Weil } 3724fe5da05eSIlya Dryomov 3725fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->retry_attempt, e_inval); 3726fe5da05eSIlya Dryomov for (i = 0; i < m->num_ops; i++) 3727fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->rval[i], e_inval); 3728fe5da05eSIlya Dryomov 3729fe5da05eSIlya Dryomov if (version >= 5) { 3730fe5da05eSIlya Dryomov ceph_decode_need(&p, end, sizeof(m->replay_version), e_inval); 3731fe5da05eSIlya Dryomov memcpy(&m->replay_version, p, sizeof(m->replay_version)); 3732fe5da05eSIlya Dryomov p += sizeof(m->replay_version); 3733fe5da05eSIlya Dryomov ceph_decode_64_safe(&p, end, m->user_version, e_inval); 3734fe5da05eSIlya Dryomov } else { 3735fe5da05eSIlya Dryomov m->replay_version = bad_replay_version; /* struct */ 3736fe5da05eSIlya Dryomov m->user_version = le64_to_cpu(m->replay_version.version); 37371b83bef2SSage Weil } 37381b83bef2SSage Weil 3739fe5da05eSIlya Dryomov if (version >= 6) { 3740fe5da05eSIlya Dryomov if (version >= 7) 3741fe5da05eSIlya Dryomov ceph_decode_8_safe(&p, end, decode_redir, e_inval); 3742b0b31a8fSIlya Dryomov else 3743b0b31a8fSIlya Dryomov decode_redir = 1; 3744b0b31a8fSIlya Dryomov } else { 3745b0b31a8fSIlya Dryomov decode_redir = 0; 3746b0b31a8fSIlya Dryomov } 3747b0b31a8fSIlya Dryomov 3748b0b31a8fSIlya Dryomov if (decode_redir) { 3749fe5da05eSIlya Dryomov ret = ceph_redirect_decode(&p, end, &m->redirect); 3750fe5da05eSIlya Dryomov if (ret) 3751fe5da05eSIlya Dryomov return ret; 3752205ee118SIlya Dryomov } else { 3753fe5da05eSIlya Dryomov ceph_oloc_init(&m->redirect.oloc); 3754205ee118SIlya Dryomov } 3755205ee118SIlya Dryomov 3756fe5da05eSIlya Dryomov return 0; 3757205ee118SIlya Dryomov 3758fe5da05eSIlya Dryomov e_inval: 3759fe5da05eSIlya Dryomov return -EINVAL; 3760fe5da05eSIlya Dryomov } 3761fe5da05eSIlya Dryomov 3762fe5da05eSIlya Dryomov /* 3763b18b9550SIlya Dryomov * Handle MOSDOpReply. Set ->r_result and call the callback if it is 3764b18b9550SIlya Dryomov * specified. 3765fe5da05eSIlya Dryomov */ 37665aea3dcdSIlya Dryomov static void handle_reply(struct ceph_osd *osd, struct ceph_msg *msg) 3767fe5da05eSIlya Dryomov { 37685aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 3769fe5da05eSIlya Dryomov struct ceph_osd_request *req; 3770fe5da05eSIlya Dryomov struct MOSDOpReply m; 3771fe5da05eSIlya Dryomov u64 tid = le64_to_cpu(msg->hdr.tid); 3772fe5da05eSIlya Dryomov u32 data_len = 0; 3773fe5da05eSIlya Dryomov int ret; 3774fe5da05eSIlya Dryomov int i; 3775fe5da05eSIlya Dryomov 3776fe5da05eSIlya Dryomov dout("%s msg %p tid %llu\n", __func__, msg, tid); 3777fe5da05eSIlya Dryomov 37785aea3dcdSIlya Dryomov down_read(&osdc->lock); 37795aea3dcdSIlya Dryomov if (!osd_registered(osd)) { 37805aea3dcdSIlya Dryomov dout("%s osd%d unknown\n", __func__, osd->o_osd); 37815aea3dcdSIlya Dryomov goto out_unlock_osdc; 3782fe5da05eSIlya Dryomov } 37835aea3dcdSIlya Dryomov WARN_ON(osd->o_osd != le64_to_cpu(msg->hdr.src.num)); 37845aea3dcdSIlya Dryomov 37855aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 37865aea3dcdSIlya Dryomov req = lookup_request(&osd->o_requests, tid); 37875aea3dcdSIlya Dryomov if (!req) { 37885aea3dcdSIlya Dryomov dout("%s osd%d tid %llu unknown\n", __func__, osd->o_osd, tid); 37895aea3dcdSIlya Dryomov goto out_unlock_session; 37905aea3dcdSIlya Dryomov } 3791fe5da05eSIlya Dryomov 3792cd08e0a2SYan, Zheng m.redirect.oloc.pool_ns = req->r_t.target_oloc.pool_ns; 3793fe5da05eSIlya Dryomov ret = decode_MOSDOpReply(msg, &m); 3794cd08e0a2SYan, Zheng m.redirect.oloc.pool_ns = NULL; 3795fe5da05eSIlya Dryomov if (ret) { 3796fe5da05eSIlya Dryomov pr_err("failed to decode MOSDOpReply for tid %llu: %d\n", 3797fe5da05eSIlya Dryomov req->r_tid, ret); 3798fe5da05eSIlya Dryomov ceph_msg_dump(msg); 3799fe5da05eSIlya Dryomov goto fail_request; 3800fe5da05eSIlya Dryomov } 3801fe5da05eSIlya Dryomov dout("%s req %p tid %llu flags 0x%llx pgid %llu.%x epoch %u attempt %d v %u'%llu uv %llu\n", 3802fe5da05eSIlya Dryomov __func__, req, req->r_tid, m.flags, m.pgid.pool, m.pgid.seed, 3803fe5da05eSIlya Dryomov m.epoch, m.retry_attempt, le32_to_cpu(m.replay_version.epoch), 3804fe5da05eSIlya Dryomov le64_to_cpu(m.replay_version.version), m.user_version); 3805fe5da05eSIlya Dryomov 3806fe5da05eSIlya Dryomov if (m.retry_attempt >= 0) { 3807fe5da05eSIlya Dryomov if (m.retry_attempt != req->r_attempts - 1) { 3808fe5da05eSIlya Dryomov dout("req %p tid %llu retry_attempt %d != %d, ignoring\n", 3809fe5da05eSIlya Dryomov req, req->r_tid, m.retry_attempt, 3810fe5da05eSIlya Dryomov req->r_attempts - 1); 38115aea3dcdSIlya Dryomov goto out_unlock_session; 3812fe5da05eSIlya Dryomov } 3813fe5da05eSIlya Dryomov } else { 3814fe5da05eSIlya Dryomov WARN_ON(1); /* MOSDOpReply v4 is assumed */ 3815fe5da05eSIlya Dryomov } 3816fe5da05eSIlya Dryomov 3817fe5da05eSIlya Dryomov if (!ceph_oloc_empty(&m.redirect.oloc)) { 3818fe5da05eSIlya Dryomov dout("req %p tid %llu redirect pool %lld\n", req, req->r_tid, 3819fe5da05eSIlya Dryomov m.redirect.oloc.pool); 38205aea3dcdSIlya Dryomov unlink_request(osd, req); 38215aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 3822205ee118SIlya Dryomov 382330c156d9SYan, Zheng /* 382430c156d9SYan, Zheng * Not ceph_oloc_copy() - changing pool_ns is not 382530c156d9SYan, Zheng * supported. 382630c156d9SYan, Zheng */ 382730c156d9SYan, Zheng req->r_t.target_oloc.pool = m.redirect.oloc.pool; 3828890bd0f8SJerry Lee req->r_flags |= CEPH_OSD_FLAG_REDIRECTED | 3829890bd0f8SJerry Lee CEPH_OSD_FLAG_IGNORE_OVERLAY | 3830890bd0f8SJerry Lee CEPH_OSD_FLAG_IGNORE_CACHE; 38315aea3dcdSIlya Dryomov req->r_tid = 0; 38325aea3dcdSIlya Dryomov __submit_request(req, false); 38335aea3dcdSIlya Dryomov goto out_unlock_osdc; 3834205ee118SIlya Dryomov } 3835205ee118SIlya Dryomov 3836117d96a0SIlya Dryomov if (m.result == -EAGAIN) { 3837117d96a0SIlya Dryomov dout("req %p tid %llu EAGAIN\n", req, req->r_tid); 3838117d96a0SIlya Dryomov unlink_request(osd, req); 3839117d96a0SIlya Dryomov mutex_unlock(&osd->lock); 3840117d96a0SIlya Dryomov 3841117d96a0SIlya Dryomov /* 3842117d96a0SIlya Dryomov * The object is missing on the replica or not (yet) 3843117d96a0SIlya Dryomov * readable. Clear pgid to force a resend to the primary 3844117d96a0SIlya Dryomov * via legacy_change. 3845117d96a0SIlya Dryomov */ 3846117d96a0SIlya Dryomov req->r_t.pgid.pool = 0; 3847117d96a0SIlya Dryomov req->r_t.pgid.seed = 0; 3848117d96a0SIlya Dryomov WARN_ON(!req->r_t.used_replica); 3849117d96a0SIlya Dryomov req->r_flags &= ~(CEPH_OSD_FLAG_BALANCE_READS | 3850117d96a0SIlya Dryomov CEPH_OSD_FLAG_LOCALIZE_READS); 3851117d96a0SIlya Dryomov req->r_tid = 0; 3852117d96a0SIlya Dryomov __submit_request(req, false); 3853117d96a0SIlya Dryomov goto out_unlock_osdc; 3854117d96a0SIlya Dryomov } 3855117d96a0SIlya Dryomov 3856fe5da05eSIlya Dryomov if (m.num_ops != req->r_num_ops) { 3857fe5da05eSIlya Dryomov pr_err("num_ops %d != %d for tid %llu\n", m.num_ops, 3858fe5da05eSIlya Dryomov req->r_num_ops, req->r_tid); 3859fe5da05eSIlya Dryomov goto fail_request; 3860fe5da05eSIlya Dryomov } 3861fe5da05eSIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 3862fe5da05eSIlya Dryomov dout(" req %p tid %llu op %d rval %d len %u\n", req, 3863fe5da05eSIlya Dryomov req->r_tid, i, m.rval[i], m.outdata_len[i]); 3864fe5da05eSIlya Dryomov req->r_ops[i].rval = m.rval[i]; 3865fe5da05eSIlya Dryomov req->r_ops[i].outdata_len = m.outdata_len[i]; 3866fe5da05eSIlya Dryomov data_len += m.outdata_len[i]; 3867fe5da05eSIlya Dryomov } 3868fe5da05eSIlya Dryomov if (data_len != le32_to_cpu(msg->hdr.data_len)) { 3869fe5da05eSIlya Dryomov pr_err("sum of lens %u != %u for tid %llu\n", data_len, 3870fe5da05eSIlya Dryomov le32_to_cpu(msg->hdr.data_len), req->r_tid); 3871fe5da05eSIlya Dryomov goto fail_request; 3872fe5da05eSIlya Dryomov } 3873b18b9550SIlya Dryomov dout("%s req %p tid %llu result %d data_len %u\n", __func__, 3874b18b9550SIlya Dryomov req, req->r_tid, m.result, data_len); 38753d14c5d2SYehuda Sadeh 3876b18b9550SIlya Dryomov /* 3877b18b9550SIlya Dryomov * Since we only ever request ONDISK, we should only ever get 3878b18b9550SIlya Dryomov * one (type of) reply back. 3879b18b9550SIlya Dryomov */ 3880b18b9550SIlya Dryomov WARN_ON(!(m.flags & CEPH_OSD_FLAG_ONDISK)); 388169dd3b39SJeff Layton req->r_version = m.user_version; 3882fe5da05eSIlya Dryomov req->r_result = m.result ?: data_len; 388345ee2c1dSIlya Dryomov finish_request(req); 38845aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 38855aea3dcdSIlya Dryomov up_read(&osdc->lock); 38863d14c5d2SYehuda Sadeh 3887fe5da05eSIlya Dryomov __complete_request(req); 38883d14c5d2SYehuda Sadeh return; 3889fe5da05eSIlya Dryomov 3890fe5da05eSIlya Dryomov fail_request: 38914609245eSIlya Dryomov complete_request(req, -EIO); 38925aea3dcdSIlya Dryomov out_unlock_session: 38935aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 38945aea3dcdSIlya Dryomov out_unlock_osdc: 38955aea3dcdSIlya Dryomov up_read(&osdc->lock); 38963d14c5d2SYehuda Sadeh } 38973d14c5d2SYehuda Sadeh 389842c1b124SIlya Dryomov static void set_pool_was_full(struct ceph_osd_client *osdc) 389942c1b124SIlya Dryomov { 390042c1b124SIlya Dryomov struct rb_node *n; 390142c1b124SIlya Dryomov 390242c1b124SIlya Dryomov for (n = rb_first(&osdc->osdmap->pg_pools); n; n = rb_next(n)) { 390342c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 390442c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 390542c1b124SIlya Dryomov 390642c1b124SIlya Dryomov pi->was_full = __pool_full(pi); 390742c1b124SIlya Dryomov } 390842c1b124SIlya Dryomov } 390942c1b124SIlya Dryomov 39105aea3dcdSIlya Dryomov static bool pool_cleared_full(struct ceph_osd_client *osdc, s64 pool_id) 39113d14c5d2SYehuda Sadeh { 39125aea3dcdSIlya Dryomov struct ceph_pg_pool_info *pi; 39133d14c5d2SYehuda Sadeh 39145aea3dcdSIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, pool_id); 39155aea3dcdSIlya Dryomov if (!pi) 39165aea3dcdSIlya Dryomov return false; 39173d14c5d2SYehuda Sadeh 39185aea3dcdSIlya Dryomov return pi->was_full && !__pool_full(pi); 39193d14c5d2SYehuda Sadeh } 39203d14c5d2SYehuda Sadeh 3921922dab61SIlya Dryomov static enum calc_target_result 3922922dab61SIlya Dryomov recalc_linger_target(struct ceph_osd_linger_request *lreq) 3923922dab61SIlya Dryomov { 3924922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 3925922dab61SIlya Dryomov enum calc_target_result ct_res; 3926922dab61SIlya Dryomov 39278edf84baSIlya Dryomov ct_res = calc_target(osdc, &lreq->t, true); 3928922dab61SIlya Dryomov if (ct_res == CALC_TARGET_NEED_RESEND) { 3929922dab61SIlya Dryomov struct ceph_osd *osd; 3930922dab61SIlya Dryomov 3931922dab61SIlya Dryomov osd = lookup_create_osd(osdc, lreq->t.osd, true); 3932922dab61SIlya Dryomov if (osd != lreq->osd) { 3933922dab61SIlya Dryomov unlink_linger(lreq->osd, lreq); 3934922dab61SIlya Dryomov link_linger(osd, lreq); 3935922dab61SIlya Dryomov } 3936922dab61SIlya Dryomov } 3937922dab61SIlya Dryomov 3938922dab61SIlya Dryomov return ct_res; 3939922dab61SIlya Dryomov } 3940922dab61SIlya Dryomov 39413d14c5d2SYehuda Sadeh /* 39425aea3dcdSIlya Dryomov * Requeue requests whose mapping to an OSD has changed. 39433d14c5d2SYehuda Sadeh */ 39445aea3dcdSIlya Dryomov static void scan_requests(struct ceph_osd *osd, 39455aea3dcdSIlya Dryomov bool force_resend, 39465aea3dcdSIlya Dryomov bool cleared_full, 39475aea3dcdSIlya Dryomov bool check_pool_cleared_full, 39485aea3dcdSIlya Dryomov struct rb_root *need_resend, 39495aea3dcdSIlya Dryomov struct list_head *need_resend_linger) 39503d14c5d2SYehuda Sadeh { 39515aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 39525aea3dcdSIlya Dryomov struct rb_node *n; 39535aea3dcdSIlya Dryomov bool force_resend_writes; 39543d14c5d2SYehuda Sadeh 3955922dab61SIlya Dryomov for (n = rb_first(&osd->o_linger_requests); n; ) { 3956922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = 3957922dab61SIlya Dryomov rb_entry(n, struct ceph_osd_linger_request, node); 3958922dab61SIlya Dryomov enum calc_target_result ct_res; 3959922dab61SIlya Dryomov 3960922dab61SIlya Dryomov n = rb_next(n); /* recalc_linger_target() */ 3961922dab61SIlya Dryomov 3962922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu\n", __func__, lreq, 3963922dab61SIlya Dryomov lreq->linger_id); 3964922dab61SIlya Dryomov ct_res = recalc_linger_target(lreq); 3965922dab61SIlya Dryomov switch (ct_res) { 3966922dab61SIlya Dryomov case CALC_TARGET_NO_ACTION: 3967922dab61SIlya Dryomov force_resend_writes = cleared_full || 3968922dab61SIlya Dryomov (check_pool_cleared_full && 3969922dab61SIlya Dryomov pool_cleared_full(osdc, lreq->t.base_oloc.pool)); 3970922dab61SIlya Dryomov if (!force_resend && !force_resend_writes) 3971922dab61SIlya Dryomov break; 3972922dab61SIlya Dryomov 3973df561f66SGustavo A. R. Silva fallthrough; 3974922dab61SIlya Dryomov case CALC_TARGET_NEED_RESEND: 39754609245eSIlya Dryomov cancel_linger_map_check(lreq); 3976922dab61SIlya Dryomov /* 3977922dab61SIlya Dryomov * scan_requests() for the previous epoch(s) 3978922dab61SIlya Dryomov * may have already added it to the list, since 3979922dab61SIlya Dryomov * it's not unlinked here. 3980922dab61SIlya Dryomov */ 3981922dab61SIlya Dryomov if (list_empty(&lreq->scan_item)) 3982922dab61SIlya Dryomov list_add_tail(&lreq->scan_item, need_resend_linger); 3983922dab61SIlya Dryomov break; 3984922dab61SIlya Dryomov case CALC_TARGET_POOL_DNE: 3985a10bcb19SIlya Dryomov list_del_init(&lreq->scan_item); 39864609245eSIlya Dryomov check_linger_pool_dne(lreq); 3987922dab61SIlya Dryomov break; 3988922dab61SIlya Dryomov } 3989922dab61SIlya Dryomov } 3990922dab61SIlya Dryomov 39915aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; ) { 39925aea3dcdSIlya Dryomov struct ceph_osd_request *req = 39935aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 39945aea3dcdSIlya Dryomov enum calc_target_result ct_res; 3995ab60b16dSAlex Elder 39964609245eSIlya Dryomov n = rb_next(n); /* unlink_request(), check_pool_dne() */ 3997ab60b16dSAlex Elder 39985aea3dcdSIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 39998edf84baSIlya Dryomov ct_res = calc_target(osdc, &req->r_t, false); 40005aea3dcdSIlya Dryomov switch (ct_res) { 40015aea3dcdSIlya Dryomov case CALC_TARGET_NO_ACTION: 40025aea3dcdSIlya Dryomov force_resend_writes = cleared_full || 40035aea3dcdSIlya Dryomov (check_pool_cleared_full && 40045aea3dcdSIlya Dryomov pool_cleared_full(osdc, req->r_t.base_oloc.pool)); 40055aea3dcdSIlya Dryomov if (!force_resend && 40065aea3dcdSIlya Dryomov (!(req->r_flags & CEPH_OSD_FLAG_WRITE) || 40075aea3dcdSIlya Dryomov !force_resend_writes)) 40085aea3dcdSIlya Dryomov break; 4009a40c4f10SYehuda Sadeh 4010df561f66SGustavo A. R. Silva fallthrough; 40115aea3dcdSIlya Dryomov case CALC_TARGET_NEED_RESEND: 40124609245eSIlya Dryomov cancel_map_check(req); 40135aea3dcdSIlya Dryomov unlink_request(osd, req); 40145aea3dcdSIlya Dryomov insert_request(need_resend, req); 40155aea3dcdSIlya Dryomov break; 40165aea3dcdSIlya Dryomov case CALC_TARGET_POOL_DNE: 40174609245eSIlya Dryomov check_pool_dne(req); 40185aea3dcdSIlya Dryomov break; 4019a40c4f10SYehuda Sadeh } 40203d14c5d2SYehuda Sadeh } 40213d14c5d2SYehuda Sadeh } 40226f6c7006SSage Weil 402342c1b124SIlya Dryomov static int handle_one_map(struct ceph_osd_client *osdc, 40245aea3dcdSIlya Dryomov void *p, void *end, bool incremental, 40255aea3dcdSIlya Dryomov struct rb_root *need_resend, 40265aea3dcdSIlya Dryomov struct list_head *need_resend_linger) 402742c1b124SIlya Dryomov { 402842c1b124SIlya Dryomov struct ceph_osdmap *newmap; 402942c1b124SIlya Dryomov struct rb_node *n; 403042c1b124SIlya Dryomov bool skipped_map = false; 403142c1b124SIlya Dryomov bool was_full; 403242c1b124SIlya Dryomov 4033b7ec35b3SIlya Dryomov was_full = ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL); 403442c1b124SIlya Dryomov set_pool_was_full(osdc); 403542c1b124SIlya Dryomov 403642c1b124SIlya Dryomov if (incremental) 4037cd1a677cSIlya Dryomov newmap = osdmap_apply_incremental(&p, end, 4038cd1a677cSIlya Dryomov ceph_msgr2(osdc->client), 4039cd1a677cSIlya Dryomov osdc->osdmap); 404042c1b124SIlya Dryomov else 4041cd1a677cSIlya Dryomov newmap = ceph_osdmap_decode(&p, end, ceph_msgr2(osdc->client)); 404242c1b124SIlya Dryomov if (IS_ERR(newmap)) 404342c1b124SIlya Dryomov return PTR_ERR(newmap); 404442c1b124SIlya Dryomov 404542c1b124SIlya Dryomov if (newmap != osdc->osdmap) { 404642c1b124SIlya Dryomov /* 404742c1b124SIlya Dryomov * Preserve ->was_full before destroying the old map. 404842c1b124SIlya Dryomov * For pools that weren't in the old map, ->was_full 404942c1b124SIlya Dryomov * should be false. 405042c1b124SIlya Dryomov */ 405142c1b124SIlya Dryomov for (n = rb_first(&newmap->pg_pools); n; n = rb_next(n)) { 405242c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 405342c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 405442c1b124SIlya Dryomov struct ceph_pg_pool_info *old_pi; 405542c1b124SIlya Dryomov 405642c1b124SIlya Dryomov old_pi = ceph_pg_pool_by_id(osdc->osdmap, pi->id); 405742c1b124SIlya Dryomov if (old_pi) 405842c1b124SIlya Dryomov pi->was_full = old_pi->was_full; 405942c1b124SIlya Dryomov else 406042c1b124SIlya Dryomov WARN_ON(pi->was_full); 406142c1b124SIlya Dryomov } 406242c1b124SIlya Dryomov 406342c1b124SIlya Dryomov if (osdc->osdmap->epoch && 406442c1b124SIlya Dryomov osdc->osdmap->epoch + 1 < newmap->epoch) { 406542c1b124SIlya Dryomov WARN_ON(incremental); 406642c1b124SIlya Dryomov skipped_map = true; 406742c1b124SIlya Dryomov } 406842c1b124SIlya Dryomov 406942c1b124SIlya Dryomov ceph_osdmap_destroy(osdc->osdmap); 407042c1b124SIlya Dryomov osdc->osdmap = newmap; 407142c1b124SIlya Dryomov } 407242c1b124SIlya Dryomov 4073b7ec35b3SIlya Dryomov was_full &= !ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL); 40745aea3dcdSIlya Dryomov scan_requests(&osdc->homeless_osd, skipped_map, was_full, true, 40755aea3dcdSIlya Dryomov need_resend, need_resend_linger); 40765aea3dcdSIlya Dryomov 40775aea3dcdSIlya Dryomov for (n = rb_first(&osdc->osds); n; ) { 40785aea3dcdSIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 40795aea3dcdSIlya Dryomov 40805aea3dcdSIlya Dryomov n = rb_next(n); /* close_osd() */ 40815aea3dcdSIlya Dryomov 40825aea3dcdSIlya Dryomov scan_requests(osd, skipped_map, was_full, true, need_resend, 40835aea3dcdSIlya Dryomov need_resend_linger); 40845aea3dcdSIlya Dryomov if (!ceph_osd_is_up(osdc->osdmap, osd->o_osd) || 40855aea3dcdSIlya Dryomov memcmp(&osd->o_con.peer_addr, 40865aea3dcdSIlya Dryomov ceph_osd_addr(osdc->osdmap, osd->o_osd), 40875aea3dcdSIlya Dryomov sizeof(struct ceph_entity_addr))) 40885aea3dcdSIlya Dryomov close_osd(osd); 40895aea3dcdSIlya Dryomov } 409042c1b124SIlya Dryomov 409142c1b124SIlya Dryomov return 0; 409242c1b124SIlya Dryomov } 40936f6c7006SSage Weil 40945aea3dcdSIlya Dryomov static void kick_requests(struct ceph_osd_client *osdc, 40955aea3dcdSIlya Dryomov struct rb_root *need_resend, 40965aea3dcdSIlya Dryomov struct list_head *need_resend_linger) 40975aea3dcdSIlya Dryomov { 4098922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq, *nlreq; 409904c7d789SIlya Dryomov enum calc_target_result ct_res; 41005aea3dcdSIlya Dryomov struct rb_node *n; 41015aea3dcdSIlya Dryomov 410204c7d789SIlya Dryomov /* make sure need_resend targets reflect latest map */ 410304c7d789SIlya Dryomov for (n = rb_first(need_resend); n; ) { 410404c7d789SIlya Dryomov struct ceph_osd_request *req = 410504c7d789SIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 410604c7d789SIlya Dryomov 410704c7d789SIlya Dryomov n = rb_next(n); 410804c7d789SIlya Dryomov 410904c7d789SIlya Dryomov if (req->r_t.epoch < osdc->osdmap->epoch) { 41108edf84baSIlya Dryomov ct_res = calc_target(osdc, &req->r_t, false); 411104c7d789SIlya Dryomov if (ct_res == CALC_TARGET_POOL_DNE) { 411204c7d789SIlya Dryomov erase_request(need_resend, req); 411304c7d789SIlya Dryomov check_pool_dne(req); 411404c7d789SIlya Dryomov } 411504c7d789SIlya Dryomov } 411604c7d789SIlya Dryomov } 411704c7d789SIlya Dryomov 41185aea3dcdSIlya Dryomov for (n = rb_first(need_resend); n; ) { 41195aea3dcdSIlya Dryomov struct ceph_osd_request *req = 41205aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 41215aea3dcdSIlya Dryomov struct ceph_osd *osd; 41225aea3dcdSIlya Dryomov 41235aea3dcdSIlya Dryomov n = rb_next(n); 41245aea3dcdSIlya Dryomov erase_request(need_resend, req); /* before link_request() */ 41255aea3dcdSIlya Dryomov 41265aea3dcdSIlya Dryomov osd = lookup_create_osd(osdc, req->r_t.osd, true); 41275aea3dcdSIlya Dryomov link_request(osd, req); 41285aea3dcdSIlya Dryomov if (!req->r_linger) { 41295aea3dcdSIlya Dryomov if (!osd_homeless(osd) && !req->r_t.paused) 41305aea3dcdSIlya Dryomov send_request(req); 4131922dab61SIlya Dryomov } else { 4132922dab61SIlya Dryomov cancel_linger_request(req); 41335aea3dcdSIlya Dryomov } 41345aea3dcdSIlya Dryomov } 4135922dab61SIlya Dryomov 4136922dab61SIlya Dryomov list_for_each_entry_safe(lreq, nlreq, need_resend_linger, scan_item) { 4137922dab61SIlya Dryomov if (!osd_homeless(lreq->osd)) 4138922dab61SIlya Dryomov send_linger(lreq); 4139922dab61SIlya Dryomov 4140922dab61SIlya Dryomov list_del_init(&lreq->scan_item); 4141922dab61SIlya Dryomov } 41425aea3dcdSIlya Dryomov } 41435aea3dcdSIlya Dryomov 41443d14c5d2SYehuda Sadeh /* 41453d14c5d2SYehuda Sadeh * Process updated osd map. 41463d14c5d2SYehuda Sadeh * 41473d14c5d2SYehuda Sadeh * The message contains any number of incremental and full maps, normally 41483d14c5d2SYehuda Sadeh * indicating some sort of topology change in the cluster. Kick requests 41493d14c5d2SYehuda Sadeh * off to different OSDs as needed. 41503d14c5d2SYehuda Sadeh */ 41513d14c5d2SYehuda Sadeh void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) 41523d14c5d2SYehuda Sadeh { 415342c1b124SIlya Dryomov void *p = msg->front.iov_base; 415442c1b124SIlya Dryomov void *const end = p + msg->front.iov_len; 41553d14c5d2SYehuda Sadeh u32 nr_maps, maplen; 41563d14c5d2SYehuda Sadeh u32 epoch; 41573d14c5d2SYehuda Sadeh struct ceph_fsid fsid; 41585aea3dcdSIlya Dryomov struct rb_root need_resend = RB_ROOT; 41595aea3dcdSIlya Dryomov LIST_HEAD(need_resend_linger); 416042c1b124SIlya Dryomov bool handled_incremental = false; 416142c1b124SIlya Dryomov bool was_pauserd, was_pausewr; 416242c1b124SIlya Dryomov bool pauserd, pausewr; 416342c1b124SIlya Dryomov int err; 41643d14c5d2SYehuda Sadeh 416542c1b124SIlya Dryomov dout("%s have %u\n", __func__, osdc->osdmap->epoch); 41665aea3dcdSIlya Dryomov down_write(&osdc->lock); 41673d14c5d2SYehuda Sadeh 41683d14c5d2SYehuda Sadeh /* verify fsid */ 41693d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, sizeof(fsid), bad); 41703d14c5d2SYehuda Sadeh ceph_decode_copy(&p, &fsid, sizeof(fsid)); 41713d14c5d2SYehuda Sadeh if (ceph_check_fsid(osdc->client, &fsid) < 0) 417242c1b124SIlya Dryomov goto bad; 41733d14c5d2SYehuda Sadeh 4174b7ec35b3SIlya Dryomov was_pauserd = ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSERD); 4175b7ec35b3SIlya Dryomov was_pausewr = ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSEWR) || 4176b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || 417742c1b124SIlya Dryomov have_pool_full(osdc); 41789a1ea2dbSJosh Durgin 41793d14c5d2SYehuda Sadeh /* incremental maps */ 41803d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 41813d14c5d2SYehuda Sadeh dout(" %d inc maps\n", nr_maps); 41823d14c5d2SYehuda Sadeh while (nr_maps > 0) { 41833d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 41843d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 41853d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 41863d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 418742c1b124SIlya Dryomov if (osdc->osdmap->epoch && 418842c1b124SIlya Dryomov osdc->osdmap->epoch + 1 == epoch) { 41893d14c5d2SYehuda Sadeh dout("applying incremental map %u len %d\n", 41903d14c5d2SYehuda Sadeh epoch, maplen); 41915aea3dcdSIlya Dryomov err = handle_one_map(osdc, p, p + maplen, true, 41925aea3dcdSIlya Dryomov &need_resend, &need_resend_linger); 419342c1b124SIlya Dryomov if (err) 41943d14c5d2SYehuda Sadeh goto bad; 419542c1b124SIlya Dryomov handled_incremental = true; 41963d14c5d2SYehuda Sadeh } else { 41973d14c5d2SYehuda Sadeh dout("ignoring incremental map %u len %d\n", 41983d14c5d2SYehuda Sadeh epoch, maplen); 41993d14c5d2SYehuda Sadeh } 420042c1b124SIlya Dryomov p += maplen; 42013d14c5d2SYehuda Sadeh nr_maps--; 42023d14c5d2SYehuda Sadeh } 420342c1b124SIlya Dryomov if (handled_incremental) 42043d14c5d2SYehuda Sadeh goto done; 42053d14c5d2SYehuda Sadeh 42063d14c5d2SYehuda Sadeh /* full maps */ 42073d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 42083d14c5d2SYehuda Sadeh dout(" %d full maps\n", nr_maps); 42093d14c5d2SYehuda Sadeh while (nr_maps) { 42103d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 42113d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 42123d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 42133d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 42143d14c5d2SYehuda Sadeh if (nr_maps > 1) { 42153d14c5d2SYehuda Sadeh dout("skipping non-latest full map %u len %d\n", 42163d14c5d2SYehuda Sadeh epoch, maplen); 4217e5253a7bSIlya Dryomov } else if (osdc->osdmap->epoch >= epoch) { 42183d14c5d2SYehuda Sadeh dout("skipping full map %u len %d, " 42193d14c5d2SYehuda Sadeh "older than our %u\n", epoch, maplen, 42203d14c5d2SYehuda Sadeh osdc->osdmap->epoch); 42213d14c5d2SYehuda Sadeh } else { 42223d14c5d2SYehuda Sadeh dout("taking full map %u len %d\n", epoch, maplen); 42235aea3dcdSIlya Dryomov err = handle_one_map(osdc, p, p + maplen, false, 42245aea3dcdSIlya Dryomov &need_resend, &need_resend_linger); 422542c1b124SIlya Dryomov if (err) 42263d14c5d2SYehuda Sadeh goto bad; 42273d14c5d2SYehuda Sadeh } 42283d14c5d2SYehuda Sadeh p += maplen; 42293d14c5d2SYehuda Sadeh nr_maps--; 42303d14c5d2SYehuda Sadeh } 42313d14c5d2SYehuda Sadeh 42323d14c5d2SYehuda Sadeh done: 4233cd634fb6SSage Weil /* 4234cd634fb6SSage Weil * subscribe to subsequent osdmap updates if full to ensure 4235cd634fb6SSage Weil * we find out when we are no longer full and stop returning 4236cd634fb6SSage Weil * ENOSPC. 4237cd634fb6SSage Weil */ 4238b7ec35b3SIlya Dryomov pauserd = ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSERD); 4239b7ec35b3SIlya Dryomov pausewr = ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSEWR) || 4240b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || 424142c1b124SIlya Dryomov have_pool_full(osdc); 424258eb7932SJeff Layton if (was_pauserd || was_pausewr || pauserd || pausewr || 424358eb7932SJeff Layton osdc->osdmap->epoch < osdc->epoch_barrier) 424442c1b124SIlya Dryomov maybe_request_map(osdc); 4245cd634fb6SSage Weil 42465aea3dcdSIlya Dryomov kick_requests(osdc, &need_resend, &need_resend_linger); 424742c1b124SIlya Dryomov 4248fc36d0a4SJeff Layton ceph_osdc_abort_on_full(osdc); 424942c1b124SIlya Dryomov ceph_monc_got_map(&osdc->client->monc, CEPH_SUB_OSDMAP, 425042c1b124SIlya Dryomov osdc->osdmap->epoch); 42515aea3dcdSIlya Dryomov up_write(&osdc->lock); 42523d14c5d2SYehuda Sadeh wake_up_all(&osdc->client->auth_wq); 42533d14c5d2SYehuda Sadeh return; 42543d14c5d2SYehuda Sadeh 42553d14c5d2SYehuda Sadeh bad: 42563d14c5d2SYehuda Sadeh pr_err("osdc handle_map corrupt msg\n"); 42573d14c5d2SYehuda Sadeh ceph_msg_dump(msg); 42585aea3dcdSIlya Dryomov up_write(&osdc->lock); 42595aea3dcdSIlya Dryomov } 42605aea3dcdSIlya Dryomov 42615aea3dcdSIlya Dryomov /* 42625aea3dcdSIlya Dryomov * Resubmit requests pending on the given osd. 42635aea3dcdSIlya Dryomov */ 42645aea3dcdSIlya Dryomov static void kick_osd_requests(struct ceph_osd *osd) 42655aea3dcdSIlya Dryomov { 42665aea3dcdSIlya Dryomov struct rb_node *n; 42675aea3dcdSIlya Dryomov 4268a02a946dSIlya Dryomov clear_backoffs(osd); 4269a02a946dSIlya Dryomov 4270922dab61SIlya Dryomov for (n = rb_first(&osd->o_requests); n; ) { 42715aea3dcdSIlya Dryomov struct ceph_osd_request *req = 42725aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 42735aea3dcdSIlya Dryomov 4274922dab61SIlya Dryomov n = rb_next(n); /* cancel_linger_request() */ 4275922dab61SIlya Dryomov 42765aea3dcdSIlya Dryomov if (!req->r_linger) { 42775aea3dcdSIlya Dryomov if (!req->r_t.paused) 42785aea3dcdSIlya Dryomov send_request(req); 4279922dab61SIlya Dryomov } else { 4280922dab61SIlya Dryomov cancel_linger_request(req); 42815aea3dcdSIlya Dryomov } 42825aea3dcdSIlya Dryomov } 4283922dab61SIlya Dryomov for (n = rb_first(&osd->o_linger_requests); n; n = rb_next(n)) { 4284922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = 4285922dab61SIlya Dryomov rb_entry(n, struct ceph_osd_linger_request, node); 4286922dab61SIlya Dryomov 4287922dab61SIlya Dryomov send_linger(lreq); 4288922dab61SIlya Dryomov } 42895aea3dcdSIlya Dryomov } 42905aea3dcdSIlya Dryomov 42915aea3dcdSIlya Dryomov /* 42925aea3dcdSIlya Dryomov * If the osd connection drops, we need to resubmit all requests. 42935aea3dcdSIlya Dryomov */ 42945aea3dcdSIlya Dryomov static void osd_fault(struct ceph_connection *con) 42955aea3dcdSIlya Dryomov { 42965aea3dcdSIlya Dryomov struct ceph_osd *osd = con->private; 42975aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 42985aea3dcdSIlya Dryomov 42995aea3dcdSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 43005aea3dcdSIlya Dryomov 43015aea3dcdSIlya Dryomov down_write(&osdc->lock); 43025aea3dcdSIlya Dryomov if (!osd_registered(osd)) { 43035aea3dcdSIlya Dryomov dout("%s osd%d unknown\n", __func__, osd->o_osd); 43045aea3dcdSIlya Dryomov goto out_unlock; 43055aea3dcdSIlya Dryomov } 43065aea3dcdSIlya Dryomov 43075aea3dcdSIlya Dryomov if (!reopen_osd(osd)) 43085aea3dcdSIlya Dryomov kick_osd_requests(osd); 43095aea3dcdSIlya Dryomov maybe_request_map(osdc); 43105aea3dcdSIlya Dryomov 43115aea3dcdSIlya Dryomov out_unlock: 43125aea3dcdSIlya Dryomov up_write(&osdc->lock); 43133d14c5d2SYehuda Sadeh } 43143d14c5d2SYehuda Sadeh 4315a02a946dSIlya Dryomov struct MOSDBackoff { 4316a02a946dSIlya Dryomov struct ceph_spg spgid; 4317a02a946dSIlya Dryomov u32 map_epoch; 4318a02a946dSIlya Dryomov u8 op; 4319a02a946dSIlya Dryomov u64 id; 4320a02a946dSIlya Dryomov struct ceph_hobject_id *begin; 4321a02a946dSIlya Dryomov struct ceph_hobject_id *end; 4322a02a946dSIlya Dryomov }; 4323a02a946dSIlya Dryomov 4324a02a946dSIlya Dryomov static int decode_MOSDBackoff(const struct ceph_msg *msg, struct MOSDBackoff *m) 4325a02a946dSIlya Dryomov { 4326a02a946dSIlya Dryomov void *p = msg->front.iov_base; 4327a02a946dSIlya Dryomov void *const end = p + msg->front.iov_len; 4328a02a946dSIlya Dryomov u8 struct_v; 4329a02a946dSIlya Dryomov u32 struct_len; 4330a02a946dSIlya Dryomov int ret; 4331a02a946dSIlya Dryomov 4332a02a946dSIlya Dryomov ret = ceph_start_decoding(&p, end, 1, "spg_t", &struct_v, &struct_len); 4333a02a946dSIlya Dryomov if (ret) 4334a02a946dSIlya Dryomov return ret; 4335a02a946dSIlya Dryomov 4336a02a946dSIlya Dryomov ret = ceph_decode_pgid(&p, end, &m->spgid.pgid); 4337a02a946dSIlya Dryomov if (ret) 4338a02a946dSIlya Dryomov return ret; 4339a02a946dSIlya Dryomov 4340a02a946dSIlya Dryomov ceph_decode_8_safe(&p, end, m->spgid.shard, e_inval); 4341a02a946dSIlya Dryomov ceph_decode_32_safe(&p, end, m->map_epoch, e_inval); 4342a02a946dSIlya Dryomov ceph_decode_8_safe(&p, end, m->op, e_inval); 4343a02a946dSIlya Dryomov ceph_decode_64_safe(&p, end, m->id, e_inval); 4344a02a946dSIlya Dryomov 4345a02a946dSIlya Dryomov m->begin = kzalloc(sizeof(*m->begin), GFP_NOIO); 4346a02a946dSIlya Dryomov if (!m->begin) 4347a02a946dSIlya Dryomov return -ENOMEM; 4348a02a946dSIlya Dryomov 4349a02a946dSIlya Dryomov ret = decode_hoid(&p, end, m->begin); 4350a02a946dSIlya Dryomov if (ret) { 4351a02a946dSIlya Dryomov free_hoid(m->begin); 4352a02a946dSIlya Dryomov return ret; 4353a02a946dSIlya Dryomov } 4354a02a946dSIlya Dryomov 4355a02a946dSIlya Dryomov m->end = kzalloc(sizeof(*m->end), GFP_NOIO); 4356a02a946dSIlya Dryomov if (!m->end) { 4357a02a946dSIlya Dryomov free_hoid(m->begin); 4358a02a946dSIlya Dryomov return -ENOMEM; 4359a02a946dSIlya Dryomov } 4360a02a946dSIlya Dryomov 4361a02a946dSIlya Dryomov ret = decode_hoid(&p, end, m->end); 4362a02a946dSIlya Dryomov if (ret) { 4363a02a946dSIlya Dryomov free_hoid(m->begin); 4364a02a946dSIlya Dryomov free_hoid(m->end); 4365a02a946dSIlya Dryomov return ret; 4366a02a946dSIlya Dryomov } 4367a02a946dSIlya Dryomov 4368a02a946dSIlya Dryomov return 0; 4369a02a946dSIlya Dryomov 4370a02a946dSIlya Dryomov e_inval: 4371a02a946dSIlya Dryomov return -EINVAL; 4372a02a946dSIlya Dryomov } 4373a02a946dSIlya Dryomov 4374a02a946dSIlya Dryomov static struct ceph_msg *create_backoff_message( 4375a02a946dSIlya Dryomov const struct ceph_osd_backoff *backoff, 4376a02a946dSIlya Dryomov u32 map_epoch) 4377a02a946dSIlya Dryomov { 4378a02a946dSIlya Dryomov struct ceph_msg *msg; 4379a02a946dSIlya Dryomov void *p, *end; 4380a02a946dSIlya Dryomov int msg_size; 4381a02a946dSIlya Dryomov 4382a02a946dSIlya Dryomov msg_size = CEPH_ENCODING_START_BLK_LEN + 4383a02a946dSIlya Dryomov CEPH_PGID_ENCODING_LEN + 1; /* spgid */ 4384a02a946dSIlya Dryomov msg_size += 4 + 1 + 8; /* map_epoch, op, id */ 4385a02a946dSIlya Dryomov msg_size += CEPH_ENCODING_START_BLK_LEN + 4386a02a946dSIlya Dryomov hoid_encoding_size(backoff->begin); 4387a02a946dSIlya Dryomov msg_size += CEPH_ENCODING_START_BLK_LEN + 4388a02a946dSIlya Dryomov hoid_encoding_size(backoff->end); 4389a02a946dSIlya Dryomov 4390a02a946dSIlya Dryomov msg = ceph_msg_new(CEPH_MSG_OSD_BACKOFF, msg_size, GFP_NOIO, true); 4391a02a946dSIlya Dryomov if (!msg) 4392a02a946dSIlya Dryomov return NULL; 4393a02a946dSIlya Dryomov 4394a02a946dSIlya Dryomov p = msg->front.iov_base; 4395a02a946dSIlya Dryomov end = p + msg->front_alloc_len; 4396a02a946dSIlya Dryomov 4397a02a946dSIlya Dryomov encode_spgid(&p, &backoff->spgid); 4398a02a946dSIlya Dryomov ceph_encode_32(&p, map_epoch); 4399a02a946dSIlya Dryomov ceph_encode_8(&p, CEPH_OSD_BACKOFF_OP_ACK_BLOCK); 4400a02a946dSIlya Dryomov ceph_encode_64(&p, backoff->id); 4401a02a946dSIlya Dryomov encode_hoid(&p, end, backoff->begin); 4402a02a946dSIlya Dryomov encode_hoid(&p, end, backoff->end); 4403a02a946dSIlya Dryomov BUG_ON(p != end); 4404a02a946dSIlya Dryomov 4405a02a946dSIlya Dryomov msg->front.iov_len = p - msg->front.iov_base; 4406a02a946dSIlya Dryomov msg->hdr.version = cpu_to_le16(1); /* MOSDBackoff v1 */ 4407a02a946dSIlya Dryomov msg->hdr.front_len = cpu_to_le32(msg->front.iov_len); 4408a02a946dSIlya Dryomov 4409a02a946dSIlya Dryomov return msg; 4410a02a946dSIlya Dryomov } 4411a02a946dSIlya Dryomov 4412a02a946dSIlya Dryomov static void handle_backoff_block(struct ceph_osd *osd, struct MOSDBackoff *m) 4413a02a946dSIlya Dryomov { 4414a02a946dSIlya Dryomov struct ceph_spg_mapping *spg; 4415a02a946dSIlya Dryomov struct ceph_osd_backoff *backoff; 4416a02a946dSIlya Dryomov struct ceph_msg *msg; 4417a02a946dSIlya Dryomov 4418a02a946dSIlya Dryomov dout("%s osd%d spgid %llu.%xs%d id %llu\n", __func__, osd->o_osd, 4419a02a946dSIlya Dryomov m->spgid.pgid.pool, m->spgid.pgid.seed, m->spgid.shard, m->id); 4420a02a946dSIlya Dryomov 4421a02a946dSIlya Dryomov spg = lookup_spg_mapping(&osd->o_backoff_mappings, &m->spgid); 4422a02a946dSIlya Dryomov if (!spg) { 4423a02a946dSIlya Dryomov spg = alloc_spg_mapping(); 4424a02a946dSIlya Dryomov if (!spg) { 4425a02a946dSIlya Dryomov pr_err("%s failed to allocate spg\n", __func__); 4426a02a946dSIlya Dryomov return; 4427a02a946dSIlya Dryomov } 4428a02a946dSIlya Dryomov spg->spgid = m->spgid; /* struct */ 4429a02a946dSIlya Dryomov insert_spg_mapping(&osd->o_backoff_mappings, spg); 4430a02a946dSIlya Dryomov } 4431a02a946dSIlya Dryomov 4432a02a946dSIlya Dryomov backoff = alloc_backoff(); 4433a02a946dSIlya Dryomov if (!backoff) { 4434a02a946dSIlya Dryomov pr_err("%s failed to allocate backoff\n", __func__); 4435a02a946dSIlya Dryomov return; 4436a02a946dSIlya Dryomov } 4437a02a946dSIlya Dryomov backoff->spgid = m->spgid; /* struct */ 4438a02a946dSIlya Dryomov backoff->id = m->id; 4439a02a946dSIlya Dryomov backoff->begin = m->begin; 4440a02a946dSIlya Dryomov m->begin = NULL; /* backoff now owns this */ 4441a02a946dSIlya Dryomov backoff->end = m->end; 4442a02a946dSIlya Dryomov m->end = NULL; /* ditto */ 4443a02a946dSIlya Dryomov 4444a02a946dSIlya Dryomov insert_backoff(&spg->backoffs, backoff); 4445a02a946dSIlya Dryomov insert_backoff_by_id(&osd->o_backoffs_by_id, backoff); 4446a02a946dSIlya Dryomov 4447a02a946dSIlya Dryomov /* 4448a02a946dSIlya Dryomov * Ack with original backoff's epoch so that the OSD can 4449a02a946dSIlya Dryomov * discard this if there was a PG split. 4450a02a946dSIlya Dryomov */ 4451a02a946dSIlya Dryomov msg = create_backoff_message(backoff, m->map_epoch); 4452a02a946dSIlya Dryomov if (!msg) { 4453a02a946dSIlya Dryomov pr_err("%s failed to allocate msg\n", __func__); 4454a02a946dSIlya Dryomov return; 4455a02a946dSIlya Dryomov } 4456a02a946dSIlya Dryomov ceph_con_send(&osd->o_con, msg); 4457a02a946dSIlya Dryomov } 4458a02a946dSIlya Dryomov 4459a02a946dSIlya Dryomov static bool target_contained_by(const struct ceph_osd_request_target *t, 4460a02a946dSIlya Dryomov const struct ceph_hobject_id *begin, 4461a02a946dSIlya Dryomov const struct ceph_hobject_id *end) 4462a02a946dSIlya Dryomov { 4463a02a946dSIlya Dryomov struct ceph_hobject_id hoid; 4464a02a946dSIlya Dryomov int cmp; 4465a02a946dSIlya Dryomov 4466a02a946dSIlya Dryomov hoid_fill_from_target(&hoid, t); 4467a02a946dSIlya Dryomov cmp = hoid_compare(&hoid, begin); 4468a02a946dSIlya Dryomov return !cmp || (cmp > 0 && hoid_compare(&hoid, end) < 0); 4469a02a946dSIlya Dryomov } 4470a02a946dSIlya Dryomov 4471a02a946dSIlya Dryomov static void handle_backoff_unblock(struct ceph_osd *osd, 4472a02a946dSIlya Dryomov const struct MOSDBackoff *m) 4473a02a946dSIlya Dryomov { 4474a02a946dSIlya Dryomov struct ceph_spg_mapping *spg; 4475a02a946dSIlya Dryomov struct ceph_osd_backoff *backoff; 4476a02a946dSIlya Dryomov struct rb_node *n; 4477a02a946dSIlya Dryomov 4478a02a946dSIlya Dryomov dout("%s osd%d spgid %llu.%xs%d id %llu\n", __func__, osd->o_osd, 4479a02a946dSIlya Dryomov m->spgid.pgid.pool, m->spgid.pgid.seed, m->spgid.shard, m->id); 4480a02a946dSIlya Dryomov 4481a02a946dSIlya Dryomov backoff = lookup_backoff_by_id(&osd->o_backoffs_by_id, m->id); 4482a02a946dSIlya Dryomov if (!backoff) { 4483a02a946dSIlya Dryomov pr_err("%s osd%d spgid %llu.%xs%d id %llu backoff dne\n", 4484a02a946dSIlya Dryomov __func__, osd->o_osd, m->spgid.pgid.pool, 4485a02a946dSIlya Dryomov m->spgid.pgid.seed, m->spgid.shard, m->id); 4486a02a946dSIlya Dryomov return; 4487a02a946dSIlya Dryomov } 4488a02a946dSIlya Dryomov 4489a02a946dSIlya Dryomov if (hoid_compare(backoff->begin, m->begin) && 4490a02a946dSIlya Dryomov hoid_compare(backoff->end, m->end)) { 4491a02a946dSIlya Dryomov pr_err("%s osd%d spgid %llu.%xs%d id %llu bad range?\n", 4492a02a946dSIlya Dryomov __func__, osd->o_osd, m->spgid.pgid.pool, 4493a02a946dSIlya Dryomov m->spgid.pgid.seed, m->spgid.shard, m->id); 4494a02a946dSIlya Dryomov /* unblock it anyway... */ 4495a02a946dSIlya Dryomov } 4496a02a946dSIlya Dryomov 4497a02a946dSIlya Dryomov spg = lookup_spg_mapping(&osd->o_backoff_mappings, &backoff->spgid); 4498a02a946dSIlya Dryomov BUG_ON(!spg); 4499a02a946dSIlya Dryomov 4500a02a946dSIlya Dryomov erase_backoff(&spg->backoffs, backoff); 4501a02a946dSIlya Dryomov erase_backoff_by_id(&osd->o_backoffs_by_id, backoff); 4502a02a946dSIlya Dryomov free_backoff(backoff); 4503a02a946dSIlya Dryomov 4504a02a946dSIlya Dryomov if (RB_EMPTY_ROOT(&spg->backoffs)) { 4505a02a946dSIlya Dryomov erase_spg_mapping(&osd->o_backoff_mappings, spg); 4506a02a946dSIlya Dryomov free_spg_mapping(spg); 4507a02a946dSIlya Dryomov } 4508a02a946dSIlya Dryomov 4509a02a946dSIlya Dryomov for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) { 4510a02a946dSIlya Dryomov struct ceph_osd_request *req = 4511a02a946dSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 4512a02a946dSIlya Dryomov 4513a02a946dSIlya Dryomov if (!ceph_spg_compare(&req->r_t.spgid, &m->spgid)) { 4514a02a946dSIlya Dryomov /* 4515a02a946dSIlya Dryomov * Match against @m, not @backoff -- the PG may 4516a02a946dSIlya Dryomov * have split on the OSD. 4517a02a946dSIlya Dryomov */ 4518a02a946dSIlya Dryomov if (target_contained_by(&req->r_t, m->begin, m->end)) { 4519a02a946dSIlya Dryomov /* 4520a02a946dSIlya Dryomov * If no other installed backoff applies, 4521a02a946dSIlya Dryomov * resend. 4522a02a946dSIlya Dryomov */ 4523a02a946dSIlya Dryomov send_request(req); 4524a02a946dSIlya Dryomov } 4525a02a946dSIlya Dryomov } 4526a02a946dSIlya Dryomov } 4527a02a946dSIlya Dryomov } 4528a02a946dSIlya Dryomov 4529a02a946dSIlya Dryomov static void handle_backoff(struct ceph_osd *osd, struct ceph_msg *msg) 4530a02a946dSIlya Dryomov { 4531a02a946dSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 4532a02a946dSIlya Dryomov struct MOSDBackoff m; 4533a02a946dSIlya Dryomov int ret; 4534a02a946dSIlya Dryomov 4535a02a946dSIlya Dryomov down_read(&osdc->lock); 4536a02a946dSIlya Dryomov if (!osd_registered(osd)) { 4537a02a946dSIlya Dryomov dout("%s osd%d unknown\n", __func__, osd->o_osd); 4538a02a946dSIlya Dryomov up_read(&osdc->lock); 4539a02a946dSIlya Dryomov return; 4540a02a946dSIlya Dryomov } 4541a02a946dSIlya Dryomov WARN_ON(osd->o_osd != le64_to_cpu(msg->hdr.src.num)); 4542a02a946dSIlya Dryomov 4543a02a946dSIlya Dryomov mutex_lock(&osd->lock); 4544a02a946dSIlya Dryomov ret = decode_MOSDBackoff(msg, &m); 4545a02a946dSIlya Dryomov if (ret) { 4546a02a946dSIlya Dryomov pr_err("failed to decode MOSDBackoff: %d\n", ret); 4547a02a946dSIlya Dryomov ceph_msg_dump(msg); 4548a02a946dSIlya Dryomov goto out_unlock; 4549a02a946dSIlya Dryomov } 4550a02a946dSIlya Dryomov 4551a02a946dSIlya Dryomov switch (m.op) { 4552a02a946dSIlya Dryomov case CEPH_OSD_BACKOFF_OP_BLOCK: 4553a02a946dSIlya Dryomov handle_backoff_block(osd, &m); 4554a02a946dSIlya Dryomov break; 4555a02a946dSIlya Dryomov case CEPH_OSD_BACKOFF_OP_UNBLOCK: 4556a02a946dSIlya Dryomov handle_backoff_unblock(osd, &m); 4557a02a946dSIlya Dryomov break; 4558a02a946dSIlya Dryomov default: 4559a02a946dSIlya Dryomov pr_err("%s osd%d unknown op %d\n", __func__, osd->o_osd, m.op); 4560a02a946dSIlya Dryomov } 4561a02a946dSIlya Dryomov 4562a02a946dSIlya Dryomov free_hoid(m.begin); 4563a02a946dSIlya Dryomov free_hoid(m.end); 4564a02a946dSIlya Dryomov 4565a02a946dSIlya Dryomov out_unlock: 4566a02a946dSIlya Dryomov mutex_unlock(&osd->lock); 4567a02a946dSIlya Dryomov up_read(&osdc->lock); 4568a02a946dSIlya Dryomov } 4569a02a946dSIlya Dryomov 45703d14c5d2SYehuda Sadeh /* 4571a40c4f10SYehuda Sadeh * Process osd watch notifications 4572a40c4f10SYehuda Sadeh */ 45733c663bbdSAlex Elder static void handle_watch_notify(struct ceph_osd_client *osdc, 45743c663bbdSAlex Elder struct ceph_msg *msg) 4575a40c4f10SYehuda Sadeh { 4576922dab61SIlya Dryomov void *p = msg->front.iov_base; 4577922dab61SIlya Dryomov void *const end = p + msg->front.iov_len; 4578922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq; 4579922dab61SIlya Dryomov struct linger_work *lwork; 4580922dab61SIlya Dryomov u8 proto_ver, opcode; 4581922dab61SIlya Dryomov u64 cookie, notify_id; 4582922dab61SIlya Dryomov u64 notifier_id = 0; 458319079203SIlya Dryomov s32 return_code = 0; 4584922dab61SIlya Dryomov void *payload = NULL; 4585922dab61SIlya Dryomov u32 payload_len = 0; 4586a40c4f10SYehuda Sadeh 4587a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, proto_ver, bad); 4588a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, opcode, bad); 4589a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, cookie, bad); 4590922dab61SIlya Dryomov p += 8; /* skip ver */ 4591a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, notify_id, bad); 4592a40c4f10SYehuda Sadeh 4593922dab61SIlya Dryomov if (proto_ver >= 1) { 4594922dab61SIlya Dryomov ceph_decode_32_safe(&p, end, payload_len, bad); 4595922dab61SIlya Dryomov ceph_decode_need(&p, end, payload_len, bad); 4596922dab61SIlya Dryomov payload = p; 4597922dab61SIlya Dryomov p += payload_len; 4598a40c4f10SYehuda Sadeh } 4599a40c4f10SYehuda Sadeh 4600922dab61SIlya Dryomov if (le16_to_cpu(msg->hdr.version) >= 2) 460119079203SIlya Dryomov ceph_decode_32_safe(&p, end, return_code, bad); 4602922dab61SIlya Dryomov 4603922dab61SIlya Dryomov if (le16_to_cpu(msg->hdr.version) >= 3) 4604922dab61SIlya Dryomov ceph_decode_64_safe(&p, end, notifier_id, bad); 4605922dab61SIlya Dryomov 4606922dab61SIlya Dryomov down_read(&osdc->lock); 4607922dab61SIlya Dryomov lreq = lookup_linger_osdc(&osdc->linger_requests, cookie); 4608922dab61SIlya Dryomov if (!lreq) { 4609922dab61SIlya Dryomov dout("%s opcode %d cookie %llu dne\n", __func__, opcode, 4610922dab61SIlya Dryomov cookie); 4611922dab61SIlya Dryomov goto out_unlock_osdc; 4612922dab61SIlya Dryomov } 4613922dab61SIlya Dryomov 4614922dab61SIlya Dryomov mutex_lock(&lreq->lock); 461519079203SIlya Dryomov dout("%s opcode %d cookie %llu lreq %p is_watch %d\n", __func__, 461619079203SIlya Dryomov opcode, cookie, lreq, lreq->is_watch); 4617922dab61SIlya Dryomov if (opcode == CEPH_WATCH_EVENT_DISCONNECT) { 4618922dab61SIlya Dryomov if (!lreq->last_error) { 4619922dab61SIlya Dryomov lreq->last_error = -ENOTCONN; 4620922dab61SIlya Dryomov queue_watch_error(lreq); 4621922dab61SIlya Dryomov } 462219079203SIlya Dryomov } else if (!lreq->is_watch) { 462319079203SIlya Dryomov /* CEPH_WATCH_EVENT_NOTIFY_COMPLETE */ 462419079203SIlya Dryomov if (lreq->notify_id && lreq->notify_id != notify_id) { 462519079203SIlya Dryomov dout("lreq %p notify_id %llu != %llu, ignoring\n", lreq, 462619079203SIlya Dryomov lreq->notify_id, notify_id); 462719079203SIlya Dryomov } else if (!completion_done(&lreq->notify_finish_wait)) { 462819079203SIlya Dryomov struct ceph_msg_data *data = 46290d9c1ab3SIlya Dryomov msg->num_data_items ? &msg->data[0] : NULL; 463019079203SIlya Dryomov 463119079203SIlya Dryomov if (data) { 463219079203SIlya Dryomov if (lreq->preply_pages) { 463319079203SIlya Dryomov WARN_ON(data->type != 463419079203SIlya Dryomov CEPH_MSG_DATA_PAGES); 463519079203SIlya Dryomov *lreq->preply_pages = data->pages; 463619079203SIlya Dryomov *lreq->preply_len = data->length; 4637e8862740SIlya Dryomov data->own_pages = false; 463819079203SIlya Dryomov } 463919079203SIlya Dryomov } 464019079203SIlya Dryomov lreq->notify_finish_error = return_code; 464119079203SIlya Dryomov complete_all(&lreq->notify_finish_wait); 464219079203SIlya Dryomov } 4643922dab61SIlya Dryomov } else { 4644922dab61SIlya Dryomov /* CEPH_WATCH_EVENT_NOTIFY */ 4645922dab61SIlya Dryomov lwork = lwork_alloc(lreq, do_watch_notify); 4646922dab61SIlya Dryomov if (!lwork) { 4647922dab61SIlya Dryomov pr_err("failed to allocate notify-lwork\n"); 4648922dab61SIlya Dryomov goto out_unlock_lreq; 4649922dab61SIlya Dryomov } 4650922dab61SIlya Dryomov 4651922dab61SIlya Dryomov lwork->notify.notify_id = notify_id; 4652922dab61SIlya Dryomov lwork->notify.notifier_id = notifier_id; 4653922dab61SIlya Dryomov lwork->notify.payload = payload; 4654922dab61SIlya Dryomov lwork->notify.payload_len = payload_len; 4655922dab61SIlya Dryomov lwork->notify.msg = ceph_msg_get(msg); 4656922dab61SIlya Dryomov lwork_queue(lwork); 4657922dab61SIlya Dryomov } 4658922dab61SIlya Dryomov 4659922dab61SIlya Dryomov out_unlock_lreq: 4660922dab61SIlya Dryomov mutex_unlock(&lreq->lock); 4661922dab61SIlya Dryomov out_unlock_osdc: 4662922dab61SIlya Dryomov up_read(&osdc->lock); 4663a40c4f10SYehuda Sadeh return; 4664a40c4f10SYehuda Sadeh 4665a40c4f10SYehuda Sadeh bad: 4666a40c4f10SYehuda Sadeh pr_err("osdc handle_watch_notify corrupt msg\n"); 4667a40c4f10SYehuda Sadeh } 4668a40c4f10SYehuda Sadeh 4669a40c4f10SYehuda Sadeh /* 46703d14c5d2SYehuda Sadeh * Register request, send initial attempt. 46713d14c5d2SYehuda Sadeh */ 4672a8af0d68SJeff Layton void ceph_osdc_start_request(struct ceph_osd_client *osdc, 4673a8af0d68SJeff Layton struct ceph_osd_request *req) 46743d14c5d2SYehuda Sadeh { 46755aea3dcdSIlya Dryomov down_read(&osdc->lock); 46765aea3dcdSIlya Dryomov submit_request(req, false); 46775aea3dcdSIlya Dryomov up_read(&osdc->lock); 46783d14c5d2SYehuda Sadeh } 46793d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_start_request); 46803d14c5d2SYehuda Sadeh 46813d14c5d2SYehuda Sadeh /* 4682d0bb883cSIlya Dryomov * Unregister request. If @req was registered, it isn't completed: 4683d0bb883cSIlya Dryomov * r_result isn't set and __complete_request() isn't invoked. 4684d0bb883cSIlya Dryomov * 4685d0bb883cSIlya Dryomov * If @req wasn't registered, this call may have raced with 4686d0bb883cSIlya Dryomov * handle_reply(), in which case r_result would already be set and 4687d0bb883cSIlya Dryomov * __complete_request() would be getting invoked, possibly even 4688d0bb883cSIlya Dryomov * concurrently with this call. 4689c9f9b93dSIlya Dryomov */ 4690c9f9b93dSIlya Dryomov void ceph_osdc_cancel_request(struct ceph_osd_request *req) 4691c9f9b93dSIlya Dryomov { 4692c9f9b93dSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 4693c9f9b93dSIlya Dryomov 46945aea3dcdSIlya Dryomov down_write(&osdc->lock); 46955aea3dcdSIlya Dryomov if (req->r_osd) 46965aea3dcdSIlya Dryomov cancel_request(req); 46975aea3dcdSIlya Dryomov up_write(&osdc->lock); 4698c9f9b93dSIlya Dryomov } 4699c9f9b93dSIlya Dryomov EXPORT_SYMBOL(ceph_osdc_cancel_request); 4700c9f9b93dSIlya Dryomov 4701c9f9b93dSIlya Dryomov /* 470242b06965SIlya Dryomov * @timeout: in jiffies, 0 means "wait forever" 470342b06965SIlya Dryomov */ 470442b06965SIlya Dryomov static int wait_request_timeout(struct ceph_osd_request *req, 470542b06965SIlya Dryomov unsigned long timeout) 470642b06965SIlya Dryomov { 470742b06965SIlya Dryomov long left; 470842b06965SIlya Dryomov 470942b06965SIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 47100e76abf2SYan, Zheng left = wait_for_completion_killable_timeout(&req->r_completion, 471142b06965SIlya Dryomov ceph_timeout_jiffies(timeout)); 471242b06965SIlya Dryomov if (left <= 0) { 471342b06965SIlya Dryomov left = left ?: -ETIMEDOUT; 471442b06965SIlya Dryomov ceph_osdc_cancel_request(req); 471542b06965SIlya Dryomov } else { 471642b06965SIlya Dryomov left = req->r_result; /* completed */ 471742b06965SIlya Dryomov } 471842b06965SIlya Dryomov 471942b06965SIlya Dryomov return left; 472042b06965SIlya Dryomov } 472142b06965SIlya Dryomov 472242b06965SIlya Dryomov /* 47233d14c5d2SYehuda Sadeh * wait for a request to complete 47243d14c5d2SYehuda Sadeh */ 47253d14c5d2SYehuda Sadeh int ceph_osdc_wait_request(struct ceph_osd_client *osdc, 47263d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 47273d14c5d2SYehuda Sadeh { 472842b06965SIlya Dryomov return wait_request_timeout(req, 0); 47293d14c5d2SYehuda Sadeh } 47303d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_wait_request); 47313d14c5d2SYehuda Sadeh 47323d14c5d2SYehuda Sadeh /* 47333d14c5d2SYehuda Sadeh * sync - wait for all in-flight requests to flush. avoid starvation. 47343d14c5d2SYehuda Sadeh */ 47353d14c5d2SYehuda Sadeh void ceph_osdc_sync(struct ceph_osd_client *osdc) 47363d14c5d2SYehuda Sadeh { 47375aea3dcdSIlya Dryomov struct rb_node *n, *p; 47385aea3dcdSIlya Dryomov u64 last_tid = atomic64_read(&osdc->last_tid); 47393d14c5d2SYehuda Sadeh 47405aea3dcdSIlya Dryomov again: 47415aea3dcdSIlya Dryomov down_read(&osdc->lock); 47425aea3dcdSIlya Dryomov for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { 47435aea3dcdSIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 47445aea3dcdSIlya Dryomov 47455aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 47465aea3dcdSIlya Dryomov for (p = rb_first(&osd->o_requests); p; p = rb_next(p)) { 47475aea3dcdSIlya Dryomov struct ceph_osd_request *req = 47485aea3dcdSIlya Dryomov rb_entry(p, struct ceph_osd_request, r_node); 47495aea3dcdSIlya Dryomov 47503d14c5d2SYehuda Sadeh if (req->r_tid > last_tid) 47513d14c5d2SYehuda Sadeh break; 47523d14c5d2SYehuda Sadeh 47535aea3dcdSIlya Dryomov if (!(req->r_flags & CEPH_OSD_FLAG_WRITE)) 47543d14c5d2SYehuda Sadeh continue; 47553d14c5d2SYehuda Sadeh 47563d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 47575aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 47585aea3dcdSIlya Dryomov up_read(&osdc->lock); 47595aea3dcdSIlya Dryomov dout("%s waiting on req %p tid %llu last_tid %llu\n", 47605aea3dcdSIlya Dryomov __func__, req, req->r_tid, last_tid); 4761b18b9550SIlya Dryomov wait_for_completion(&req->r_completion); 47623d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 47635aea3dcdSIlya Dryomov goto again; 47643d14c5d2SYehuda Sadeh } 47655aea3dcdSIlya Dryomov 47665aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 47675aea3dcdSIlya Dryomov } 47685aea3dcdSIlya Dryomov 47695aea3dcdSIlya Dryomov up_read(&osdc->lock); 47705aea3dcdSIlya Dryomov dout("%s done last_tid %llu\n", __func__, last_tid); 47713d14c5d2SYehuda Sadeh } 47723d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_sync); 47733d14c5d2SYehuda Sadeh 4774922dab61SIlya Dryomov /* 4775922dab61SIlya Dryomov * Returns a handle, caller owns a ref. 4776922dab61SIlya Dryomov */ 4777922dab61SIlya Dryomov struct ceph_osd_linger_request * 4778922dab61SIlya Dryomov ceph_osdc_watch(struct ceph_osd_client *osdc, 4779922dab61SIlya Dryomov struct ceph_object_id *oid, 4780922dab61SIlya Dryomov struct ceph_object_locator *oloc, 4781922dab61SIlya Dryomov rados_watchcb2_t wcb, 4782922dab61SIlya Dryomov rados_watcherrcb_t errcb, 4783922dab61SIlya Dryomov void *data) 4784922dab61SIlya Dryomov { 4785922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq; 4786922dab61SIlya Dryomov int ret; 4787922dab61SIlya Dryomov 4788922dab61SIlya Dryomov lreq = linger_alloc(osdc); 4789922dab61SIlya Dryomov if (!lreq) 4790922dab61SIlya Dryomov return ERR_PTR(-ENOMEM); 4791922dab61SIlya Dryomov 479219079203SIlya Dryomov lreq->is_watch = true; 4793922dab61SIlya Dryomov lreq->wcb = wcb; 4794922dab61SIlya Dryomov lreq->errcb = errcb; 4795922dab61SIlya Dryomov lreq->data = data; 4796b07d3c4bSIlya Dryomov lreq->watch_valid_thru = jiffies; 4797922dab61SIlya Dryomov 4798922dab61SIlya Dryomov ceph_oid_copy(&lreq->t.base_oid, oid); 4799922dab61SIlya Dryomov ceph_oloc_copy(&lreq->t.base_oloc, oloc); 480054ea0046SIlya Dryomov lreq->t.flags = CEPH_OSD_FLAG_WRITE; 4801fac02ddfSArnd Bergmann ktime_get_real_ts64(&lreq->mtime); 4802922dab61SIlya Dryomov 480381c65213SIlya Dryomov linger_submit(lreq); 4804922dab61SIlya Dryomov ret = linger_reg_commit_wait(lreq); 4805922dab61SIlya Dryomov if (ret) { 4806922dab61SIlya Dryomov linger_cancel(lreq); 4807922dab61SIlya Dryomov goto err_put_lreq; 4808922dab61SIlya Dryomov } 4809922dab61SIlya Dryomov 4810922dab61SIlya Dryomov return lreq; 4811922dab61SIlya Dryomov 4812922dab61SIlya Dryomov err_put_lreq: 4813922dab61SIlya Dryomov linger_put(lreq); 4814922dab61SIlya Dryomov return ERR_PTR(ret); 4815922dab61SIlya Dryomov } 4816922dab61SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_watch); 4817922dab61SIlya Dryomov 4818922dab61SIlya Dryomov /* 4819922dab61SIlya Dryomov * Releases a ref. 4820922dab61SIlya Dryomov * 4821922dab61SIlya Dryomov * Times out after mount_timeout to preserve rbd unmap behaviour 4822922dab61SIlya Dryomov * introduced in 2894e1d76974 ("rbd: timeout watch teardown on unmap 4823922dab61SIlya Dryomov * with mount_timeout"). 4824922dab61SIlya Dryomov */ 4825922dab61SIlya Dryomov int ceph_osdc_unwatch(struct ceph_osd_client *osdc, 4826922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq) 4827922dab61SIlya Dryomov { 4828922dab61SIlya Dryomov struct ceph_options *opts = osdc->client->options; 4829922dab61SIlya Dryomov struct ceph_osd_request *req; 4830922dab61SIlya Dryomov int ret; 4831922dab61SIlya Dryomov 4832922dab61SIlya Dryomov req = ceph_osdc_alloc_request(osdc, NULL, 1, false, GFP_NOIO); 4833922dab61SIlya Dryomov if (!req) 4834922dab61SIlya Dryomov return -ENOMEM; 4835922dab61SIlya Dryomov 4836922dab61SIlya Dryomov ceph_oid_copy(&req->r_base_oid, &lreq->t.base_oid); 4837922dab61SIlya Dryomov ceph_oloc_copy(&req->r_base_oloc, &lreq->t.base_oloc); 483854ea0046SIlya Dryomov req->r_flags = CEPH_OSD_FLAG_WRITE; 4839fac02ddfSArnd Bergmann ktime_get_real_ts64(&req->r_mtime); 484075dbb685SIlya Dryomov osd_req_op_watch_init(req, 0, CEPH_OSD_WATCH_OP_UNWATCH, 484175dbb685SIlya Dryomov lreq->linger_id, 0); 4842922dab61SIlya Dryomov 4843922dab61SIlya Dryomov ret = ceph_osdc_alloc_messages(req, GFP_NOIO); 4844922dab61SIlya Dryomov if (ret) 4845922dab61SIlya Dryomov goto out_put_req; 4846922dab61SIlya Dryomov 4847a8af0d68SJeff Layton ceph_osdc_start_request(osdc, req); 4848922dab61SIlya Dryomov linger_cancel(lreq); 4849922dab61SIlya Dryomov linger_put(lreq); 4850922dab61SIlya Dryomov ret = wait_request_timeout(req, opts->mount_timeout); 4851922dab61SIlya Dryomov 4852922dab61SIlya Dryomov out_put_req: 4853922dab61SIlya Dryomov ceph_osdc_put_request(req); 4854922dab61SIlya Dryomov return ret; 4855922dab61SIlya Dryomov } 4856922dab61SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_unwatch); 4857922dab61SIlya Dryomov 4858922dab61SIlya Dryomov static int osd_req_op_notify_ack_init(struct ceph_osd_request *req, int which, 4859922dab61SIlya Dryomov u64 notify_id, u64 cookie, void *payload, 48606d54228fSIlya Dryomov u32 payload_len) 4861922dab61SIlya Dryomov { 4862922dab61SIlya Dryomov struct ceph_osd_req_op *op; 4863922dab61SIlya Dryomov struct ceph_pagelist *pl; 4864922dab61SIlya Dryomov int ret; 4865922dab61SIlya Dryomov 4866042f6498SJeff Layton op = osd_req_op_init(req, which, CEPH_OSD_OP_NOTIFY_ACK, 0); 4867922dab61SIlya Dryomov 486833165d47SIlya Dryomov pl = ceph_pagelist_alloc(GFP_NOIO); 4869922dab61SIlya Dryomov if (!pl) 4870922dab61SIlya Dryomov return -ENOMEM; 4871922dab61SIlya Dryomov 4872922dab61SIlya Dryomov ret = ceph_pagelist_encode_64(pl, notify_id); 4873922dab61SIlya Dryomov ret |= ceph_pagelist_encode_64(pl, cookie); 4874922dab61SIlya Dryomov if (payload) { 4875922dab61SIlya Dryomov ret |= ceph_pagelist_encode_32(pl, payload_len); 4876922dab61SIlya Dryomov ret |= ceph_pagelist_append(pl, payload, payload_len); 4877922dab61SIlya Dryomov } else { 4878922dab61SIlya Dryomov ret |= ceph_pagelist_encode_32(pl, 0); 4879922dab61SIlya Dryomov } 4880922dab61SIlya Dryomov if (ret) { 4881922dab61SIlya Dryomov ceph_pagelist_release(pl); 4882922dab61SIlya Dryomov return -ENOMEM; 4883922dab61SIlya Dryomov } 4884922dab61SIlya Dryomov 4885922dab61SIlya Dryomov ceph_osd_data_pagelist_init(&op->notify_ack.request_data, pl); 4886922dab61SIlya Dryomov op->indata_len = pl->length; 4887922dab61SIlya Dryomov return 0; 4888922dab61SIlya Dryomov } 4889922dab61SIlya Dryomov 4890922dab61SIlya Dryomov int ceph_osdc_notify_ack(struct ceph_osd_client *osdc, 4891922dab61SIlya Dryomov struct ceph_object_id *oid, 4892922dab61SIlya Dryomov struct ceph_object_locator *oloc, 4893922dab61SIlya Dryomov u64 notify_id, 4894922dab61SIlya Dryomov u64 cookie, 4895922dab61SIlya Dryomov void *payload, 48966d54228fSIlya Dryomov u32 payload_len) 4897922dab61SIlya Dryomov { 4898922dab61SIlya Dryomov struct ceph_osd_request *req; 4899922dab61SIlya Dryomov int ret; 4900922dab61SIlya Dryomov 4901922dab61SIlya Dryomov req = ceph_osdc_alloc_request(osdc, NULL, 1, false, GFP_NOIO); 4902922dab61SIlya Dryomov if (!req) 4903922dab61SIlya Dryomov return -ENOMEM; 4904922dab61SIlya Dryomov 4905922dab61SIlya Dryomov ceph_oid_copy(&req->r_base_oid, oid); 4906922dab61SIlya Dryomov ceph_oloc_copy(&req->r_base_oloc, oloc); 4907922dab61SIlya Dryomov req->r_flags = CEPH_OSD_FLAG_READ; 4908922dab61SIlya Dryomov 490926f887e0SIlya Dryomov ret = osd_req_op_notify_ack_init(req, 0, notify_id, cookie, payload, 491026f887e0SIlya Dryomov payload_len); 4911922dab61SIlya Dryomov if (ret) 4912922dab61SIlya Dryomov goto out_put_req; 4913922dab61SIlya Dryomov 491426f887e0SIlya Dryomov ret = ceph_osdc_alloc_messages(req, GFP_NOIO); 4915922dab61SIlya Dryomov if (ret) 4916922dab61SIlya Dryomov goto out_put_req; 4917922dab61SIlya Dryomov 4918a8af0d68SJeff Layton ceph_osdc_start_request(osdc, req); 4919922dab61SIlya Dryomov ret = ceph_osdc_wait_request(osdc, req); 4920922dab61SIlya Dryomov 4921922dab61SIlya Dryomov out_put_req: 4922922dab61SIlya Dryomov ceph_osdc_put_request(req); 4923922dab61SIlya Dryomov return ret; 4924922dab61SIlya Dryomov } 4925922dab61SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_notify_ack); 4926922dab61SIlya Dryomov 492719079203SIlya Dryomov /* 492819079203SIlya Dryomov * @timeout: in seconds 492919079203SIlya Dryomov * 493019079203SIlya Dryomov * @preply_{pages,len} are initialized both on success and error. 493119079203SIlya Dryomov * The caller is responsible for: 493219079203SIlya Dryomov * 493319079203SIlya Dryomov * ceph_release_page_vector(reply_pages, calc_pages_for(0, reply_len)) 493419079203SIlya Dryomov */ 493519079203SIlya Dryomov int ceph_osdc_notify(struct ceph_osd_client *osdc, 493619079203SIlya Dryomov struct ceph_object_id *oid, 493719079203SIlya Dryomov struct ceph_object_locator *oloc, 493819079203SIlya Dryomov void *payload, 49396d54228fSIlya Dryomov u32 payload_len, 494019079203SIlya Dryomov u32 timeout, 494119079203SIlya Dryomov struct page ***preply_pages, 494219079203SIlya Dryomov size_t *preply_len) 494319079203SIlya Dryomov { 494419079203SIlya Dryomov struct ceph_osd_linger_request *lreq; 494519079203SIlya Dryomov int ret; 494619079203SIlya Dryomov 494719079203SIlya Dryomov WARN_ON(!timeout); 494819079203SIlya Dryomov if (preply_pages) { 494919079203SIlya Dryomov *preply_pages = NULL; 495019079203SIlya Dryomov *preply_len = 0; 495119079203SIlya Dryomov } 495219079203SIlya Dryomov 495319079203SIlya Dryomov lreq = linger_alloc(osdc); 495419079203SIlya Dryomov if (!lreq) 495519079203SIlya Dryomov return -ENOMEM; 495619079203SIlya Dryomov 495775dbb685SIlya Dryomov lreq->request_pl = ceph_pagelist_alloc(GFP_NOIO); 495875dbb685SIlya Dryomov if (!lreq->request_pl) { 495975dbb685SIlya Dryomov ret = -ENOMEM; 496075dbb685SIlya Dryomov goto out_put_lreq; 496175dbb685SIlya Dryomov } 496275dbb685SIlya Dryomov 496375dbb685SIlya Dryomov ret = ceph_pagelist_encode_32(lreq->request_pl, 1); /* prot_ver */ 496475dbb685SIlya Dryomov ret |= ceph_pagelist_encode_32(lreq->request_pl, timeout); 496575dbb685SIlya Dryomov ret |= ceph_pagelist_encode_32(lreq->request_pl, payload_len); 496675dbb685SIlya Dryomov ret |= ceph_pagelist_append(lreq->request_pl, payload, payload_len); 496775dbb685SIlya Dryomov if (ret) { 496875dbb685SIlya Dryomov ret = -ENOMEM; 496975dbb685SIlya Dryomov goto out_put_lreq; 497075dbb685SIlya Dryomov } 497175dbb685SIlya Dryomov 497275dbb685SIlya Dryomov /* for notify_id */ 497375dbb685SIlya Dryomov lreq->notify_id_pages = ceph_alloc_page_vector(1, GFP_NOIO); 497475dbb685SIlya Dryomov if (IS_ERR(lreq->notify_id_pages)) { 497575dbb685SIlya Dryomov ret = PTR_ERR(lreq->notify_id_pages); 497675dbb685SIlya Dryomov lreq->notify_id_pages = NULL; 497775dbb685SIlya Dryomov goto out_put_lreq; 497875dbb685SIlya Dryomov } 497975dbb685SIlya Dryomov 498019079203SIlya Dryomov lreq->preply_pages = preply_pages; 498119079203SIlya Dryomov lreq->preply_len = preply_len; 498219079203SIlya Dryomov 498319079203SIlya Dryomov ceph_oid_copy(&lreq->t.base_oid, oid); 498419079203SIlya Dryomov ceph_oloc_copy(&lreq->t.base_oloc, oloc); 498519079203SIlya Dryomov lreq->t.flags = CEPH_OSD_FLAG_READ; 498619079203SIlya Dryomov 498781c65213SIlya Dryomov linger_submit(lreq); 498819079203SIlya Dryomov ret = linger_reg_commit_wait(lreq); 498919079203SIlya Dryomov if (!ret) 4990e6e28432SIlya Dryomov ret = linger_notify_finish_wait(lreq, 4991e6e28432SIlya Dryomov msecs_to_jiffies(2 * timeout * MSEC_PER_SEC)); 499219079203SIlya Dryomov else 499319079203SIlya Dryomov dout("lreq %p failed to initiate notify %d\n", lreq, ret); 499419079203SIlya Dryomov 499519079203SIlya Dryomov linger_cancel(lreq); 499619079203SIlya Dryomov out_put_lreq: 499719079203SIlya Dryomov linger_put(lreq); 499819079203SIlya Dryomov return ret; 499919079203SIlya Dryomov } 500019079203SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_notify); 500119079203SIlya Dryomov 50023d14c5d2SYehuda Sadeh /* 5003b07d3c4bSIlya Dryomov * Return the number of milliseconds since the watch was last 5004b07d3c4bSIlya Dryomov * confirmed, or an error. If there is an error, the watch is no 5005b07d3c4bSIlya Dryomov * longer valid, and should be destroyed with ceph_osdc_unwatch(). 5006b07d3c4bSIlya Dryomov */ 5007b07d3c4bSIlya Dryomov int ceph_osdc_watch_check(struct ceph_osd_client *osdc, 5008b07d3c4bSIlya Dryomov struct ceph_osd_linger_request *lreq) 5009b07d3c4bSIlya Dryomov { 5010b07d3c4bSIlya Dryomov unsigned long stamp, age; 5011b07d3c4bSIlya Dryomov int ret; 5012b07d3c4bSIlya Dryomov 5013b07d3c4bSIlya Dryomov down_read(&osdc->lock); 5014b07d3c4bSIlya Dryomov mutex_lock(&lreq->lock); 5015b07d3c4bSIlya Dryomov stamp = lreq->watch_valid_thru; 5016b07d3c4bSIlya Dryomov if (!list_empty(&lreq->pending_lworks)) { 5017b07d3c4bSIlya Dryomov struct linger_work *lwork = 5018b07d3c4bSIlya Dryomov list_first_entry(&lreq->pending_lworks, 5019b07d3c4bSIlya Dryomov struct linger_work, 5020b07d3c4bSIlya Dryomov pending_item); 5021b07d3c4bSIlya Dryomov 5022b07d3c4bSIlya Dryomov if (time_before(lwork->queued_stamp, stamp)) 5023b07d3c4bSIlya Dryomov stamp = lwork->queued_stamp; 5024b07d3c4bSIlya Dryomov } 5025b07d3c4bSIlya Dryomov age = jiffies - stamp; 5026b07d3c4bSIlya Dryomov dout("%s lreq %p linger_id %llu age %lu last_error %d\n", __func__, 5027b07d3c4bSIlya Dryomov lreq, lreq->linger_id, age, lreq->last_error); 5028b07d3c4bSIlya Dryomov /* we are truncating to msecs, so return a safe upper bound */ 5029b07d3c4bSIlya Dryomov ret = lreq->last_error ?: 1 + jiffies_to_msecs(age); 5030b07d3c4bSIlya Dryomov 5031b07d3c4bSIlya Dryomov mutex_unlock(&lreq->lock); 5032b07d3c4bSIlya Dryomov up_read(&osdc->lock); 5033b07d3c4bSIlya Dryomov return ret; 5034b07d3c4bSIlya Dryomov } 5035b07d3c4bSIlya Dryomov 5036a4ed38d7SDouglas Fuller static int decode_watcher(void **p, void *end, struct ceph_watch_item *item) 5037a4ed38d7SDouglas Fuller { 5038a4ed38d7SDouglas Fuller u8 struct_v; 5039a4ed38d7SDouglas Fuller u32 struct_len; 5040a4ed38d7SDouglas Fuller int ret; 5041a4ed38d7SDouglas Fuller 5042a4ed38d7SDouglas Fuller ret = ceph_start_decoding(p, end, 2, "watch_item_t", 5043a4ed38d7SDouglas Fuller &struct_v, &struct_len); 5044a4ed38d7SDouglas Fuller if (ret) 504551fc7ab4SJeff Layton goto bad; 5046a4ed38d7SDouglas Fuller 504751fc7ab4SJeff Layton ret = -EINVAL; 504851fc7ab4SJeff Layton ceph_decode_copy_safe(p, end, &item->name, sizeof(item->name), bad); 504951fc7ab4SJeff Layton ceph_decode_64_safe(p, end, item->cookie, bad); 505051fc7ab4SJeff Layton ceph_decode_skip_32(p, end, bad); /* skip timeout seconds */ 505151fc7ab4SJeff Layton 5052a4ed38d7SDouglas Fuller if (struct_v >= 2) { 505351fc7ab4SJeff Layton ret = ceph_decode_entity_addr(p, end, &item->addr); 505451fc7ab4SJeff Layton if (ret) 505551fc7ab4SJeff Layton goto bad; 505651fc7ab4SJeff Layton } else { 505751fc7ab4SJeff Layton ret = 0; 5058a4ed38d7SDouglas Fuller } 5059a4ed38d7SDouglas Fuller 5060a4ed38d7SDouglas Fuller dout("%s %s%llu cookie %llu addr %s\n", __func__, 5061a4ed38d7SDouglas Fuller ENTITY_NAME(item->name), item->cookie, 5062b726ec97SJeff Layton ceph_pr_addr(&item->addr)); 506351fc7ab4SJeff Layton bad: 506451fc7ab4SJeff Layton return ret; 5065a4ed38d7SDouglas Fuller } 5066a4ed38d7SDouglas Fuller 5067a4ed38d7SDouglas Fuller static int decode_watchers(void **p, void *end, 5068a4ed38d7SDouglas Fuller struct ceph_watch_item **watchers, 5069a4ed38d7SDouglas Fuller u32 *num_watchers) 5070a4ed38d7SDouglas Fuller { 5071a4ed38d7SDouglas Fuller u8 struct_v; 5072a4ed38d7SDouglas Fuller u32 struct_len; 5073a4ed38d7SDouglas Fuller int i; 5074a4ed38d7SDouglas Fuller int ret; 5075a4ed38d7SDouglas Fuller 5076a4ed38d7SDouglas Fuller ret = ceph_start_decoding(p, end, 1, "obj_list_watch_response_t", 5077a4ed38d7SDouglas Fuller &struct_v, &struct_len); 5078a4ed38d7SDouglas Fuller if (ret) 5079a4ed38d7SDouglas Fuller return ret; 5080a4ed38d7SDouglas Fuller 5081a4ed38d7SDouglas Fuller *num_watchers = ceph_decode_32(p); 5082a4ed38d7SDouglas Fuller *watchers = kcalloc(*num_watchers, sizeof(**watchers), GFP_NOIO); 5083a4ed38d7SDouglas Fuller if (!*watchers) 5084a4ed38d7SDouglas Fuller return -ENOMEM; 5085a4ed38d7SDouglas Fuller 5086a4ed38d7SDouglas Fuller for (i = 0; i < *num_watchers; i++) { 5087a4ed38d7SDouglas Fuller ret = decode_watcher(p, end, *watchers + i); 5088a4ed38d7SDouglas Fuller if (ret) { 5089a4ed38d7SDouglas Fuller kfree(*watchers); 5090a4ed38d7SDouglas Fuller return ret; 5091a4ed38d7SDouglas Fuller } 5092a4ed38d7SDouglas Fuller } 5093a4ed38d7SDouglas Fuller 5094a4ed38d7SDouglas Fuller return 0; 5095a4ed38d7SDouglas Fuller } 5096a4ed38d7SDouglas Fuller 5097a4ed38d7SDouglas Fuller /* 5098a4ed38d7SDouglas Fuller * On success, the caller is responsible for: 5099a4ed38d7SDouglas Fuller * 5100a4ed38d7SDouglas Fuller * kfree(watchers); 5101a4ed38d7SDouglas Fuller */ 5102a4ed38d7SDouglas Fuller int ceph_osdc_list_watchers(struct ceph_osd_client *osdc, 5103a4ed38d7SDouglas Fuller struct ceph_object_id *oid, 5104a4ed38d7SDouglas Fuller struct ceph_object_locator *oloc, 5105a4ed38d7SDouglas Fuller struct ceph_watch_item **watchers, 5106a4ed38d7SDouglas Fuller u32 *num_watchers) 5107a4ed38d7SDouglas Fuller { 5108a4ed38d7SDouglas Fuller struct ceph_osd_request *req; 5109a4ed38d7SDouglas Fuller struct page **pages; 5110a4ed38d7SDouglas Fuller int ret; 5111a4ed38d7SDouglas Fuller 5112a4ed38d7SDouglas Fuller req = ceph_osdc_alloc_request(osdc, NULL, 1, false, GFP_NOIO); 5113a4ed38d7SDouglas Fuller if (!req) 5114a4ed38d7SDouglas Fuller return -ENOMEM; 5115a4ed38d7SDouglas Fuller 5116a4ed38d7SDouglas Fuller ceph_oid_copy(&req->r_base_oid, oid); 5117a4ed38d7SDouglas Fuller ceph_oloc_copy(&req->r_base_oloc, oloc); 5118a4ed38d7SDouglas Fuller req->r_flags = CEPH_OSD_FLAG_READ; 5119a4ed38d7SDouglas Fuller 5120a4ed38d7SDouglas Fuller pages = ceph_alloc_page_vector(1, GFP_NOIO); 5121a4ed38d7SDouglas Fuller if (IS_ERR(pages)) { 5122a4ed38d7SDouglas Fuller ret = PTR_ERR(pages); 5123a4ed38d7SDouglas Fuller goto out_put_req; 5124a4ed38d7SDouglas Fuller } 5125a4ed38d7SDouglas Fuller 5126a4ed38d7SDouglas Fuller osd_req_op_init(req, 0, CEPH_OSD_OP_LIST_WATCHERS, 0); 5127a4ed38d7SDouglas Fuller ceph_osd_data_pages_init(osd_req_op_data(req, 0, list_watchers, 5128a4ed38d7SDouglas Fuller response_data), 5129a4ed38d7SDouglas Fuller pages, PAGE_SIZE, 0, false, true); 5130a4ed38d7SDouglas Fuller 513126f887e0SIlya Dryomov ret = ceph_osdc_alloc_messages(req, GFP_NOIO); 513226f887e0SIlya Dryomov if (ret) 513326f887e0SIlya Dryomov goto out_put_req; 513426f887e0SIlya Dryomov 5135a8af0d68SJeff Layton ceph_osdc_start_request(osdc, req); 5136a4ed38d7SDouglas Fuller ret = ceph_osdc_wait_request(osdc, req); 5137a4ed38d7SDouglas Fuller if (ret >= 0) { 5138a4ed38d7SDouglas Fuller void *p = page_address(pages[0]); 5139a4ed38d7SDouglas Fuller void *const end = p + req->r_ops[0].outdata_len; 5140a4ed38d7SDouglas Fuller 5141a4ed38d7SDouglas Fuller ret = decode_watchers(&p, end, watchers, num_watchers); 5142a4ed38d7SDouglas Fuller } 5143a4ed38d7SDouglas Fuller 5144a4ed38d7SDouglas Fuller out_put_req: 5145a4ed38d7SDouglas Fuller ceph_osdc_put_request(req); 5146a4ed38d7SDouglas Fuller return ret; 5147a4ed38d7SDouglas Fuller } 5148a4ed38d7SDouglas Fuller EXPORT_SYMBOL(ceph_osdc_list_watchers); 5149a4ed38d7SDouglas Fuller 5150b07d3c4bSIlya Dryomov /* 5151dd935f44SJosh Durgin * Call all pending notify callbacks - for use after a watch is 5152dd935f44SJosh Durgin * unregistered, to make sure no more callbacks for it will be invoked 5153dd935f44SJosh Durgin */ 5154f6479449Sstephen hemminger void ceph_osdc_flush_notifies(struct ceph_osd_client *osdc) 5155dd935f44SJosh Durgin { 515699d16943SIlya Dryomov dout("%s osdc %p\n", __func__, osdc); 5157dd935f44SJosh Durgin flush_workqueue(osdc->notify_wq); 5158dd935f44SJosh Durgin } 5159dd935f44SJosh Durgin EXPORT_SYMBOL(ceph_osdc_flush_notifies); 5160dd935f44SJosh Durgin 51617cca78c9SIlya Dryomov void ceph_osdc_maybe_request_map(struct ceph_osd_client *osdc) 51627cca78c9SIlya Dryomov { 51637cca78c9SIlya Dryomov down_read(&osdc->lock); 51647cca78c9SIlya Dryomov maybe_request_map(osdc); 51657cca78c9SIlya Dryomov up_read(&osdc->lock); 51667cca78c9SIlya Dryomov } 51677cca78c9SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_maybe_request_map); 5168dd935f44SJosh Durgin 5169dd935f44SJosh Durgin /* 5170428a7158SDouglas Fuller * Execute an OSD class method on an object. 5171428a7158SDouglas Fuller * 5172428a7158SDouglas Fuller * @flags: CEPH_OSD_FLAG_* 51732544a020SIlya Dryomov * @resp_len: in/out param for reply length 5174428a7158SDouglas Fuller */ 5175428a7158SDouglas Fuller int ceph_osdc_call(struct ceph_osd_client *osdc, 5176428a7158SDouglas Fuller struct ceph_object_id *oid, 5177428a7158SDouglas Fuller struct ceph_object_locator *oloc, 5178428a7158SDouglas Fuller const char *class, const char *method, 5179428a7158SDouglas Fuller unsigned int flags, 5180428a7158SDouglas Fuller struct page *req_page, size_t req_len, 518168ada915SIlya Dryomov struct page **resp_pages, size_t *resp_len) 5182428a7158SDouglas Fuller { 5183428a7158SDouglas Fuller struct ceph_osd_request *req; 5184428a7158SDouglas Fuller int ret; 5185428a7158SDouglas Fuller 518668ada915SIlya Dryomov if (req_len > PAGE_SIZE) 51872544a020SIlya Dryomov return -E2BIG; 51882544a020SIlya Dryomov 5189428a7158SDouglas Fuller req = ceph_osdc_alloc_request(osdc, NULL, 1, false, GFP_NOIO); 5190428a7158SDouglas Fuller if (!req) 5191428a7158SDouglas Fuller return -ENOMEM; 5192428a7158SDouglas Fuller 5193428a7158SDouglas Fuller ceph_oid_copy(&req->r_base_oid, oid); 5194428a7158SDouglas Fuller ceph_oloc_copy(&req->r_base_oloc, oloc); 5195428a7158SDouglas Fuller req->r_flags = flags; 5196428a7158SDouglas Fuller 519724639ce5SIlya Dryomov ret = osd_req_op_cls_init(req, 0, class, method); 5198fe943d50SChengguang Xu if (ret) 5199fe943d50SChengguang Xu goto out_put_req; 5200fe943d50SChengguang Xu 5201428a7158SDouglas Fuller if (req_page) 5202428a7158SDouglas Fuller osd_req_op_cls_request_data_pages(req, 0, &req_page, req_len, 5203428a7158SDouglas Fuller 0, false, false); 520468ada915SIlya Dryomov if (resp_pages) 520568ada915SIlya Dryomov osd_req_op_cls_response_data_pages(req, 0, resp_pages, 52062544a020SIlya Dryomov *resp_len, 0, false, false); 5207428a7158SDouglas Fuller 520826f887e0SIlya Dryomov ret = ceph_osdc_alloc_messages(req, GFP_NOIO); 520926f887e0SIlya Dryomov if (ret) 521026f887e0SIlya Dryomov goto out_put_req; 521126f887e0SIlya Dryomov 5212a8af0d68SJeff Layton ceph_osdc_start_request(osdc, req); 5213428a7158SDouglas Fuller ret = ceph_osdc_wait_request(osdc, req); 5214428a7158SDouglas Fuller if (ret >= 0) { 5215428a7158SDouglas Fuller ret = req->r_ops[0].rval; 521668ada915SIlya Dryomov if (resp_pages) 5217428a7158SDouglas Fuller *resp_len = req->r_ops[0].outdata_len; 5218428a7158SDouglas Fuller } 5219428a7158SDouglas Fuller 5220428a7158SDouglas Fuller out_put_req: 5221428a7158SDouglas Fuller ceph_osdc_put_request(req); 5222428a7158SDouglas Fuller return ret; 5223428a7158SDouglas Fuller } 5224428a7158SDouglas Fuller EXPORT_SYMBOL(ceph_osdc_call); 5225428a7158SDouglas Fuller 5226428a7158SDouglas Fuller /* 5227120a75eaSYan, Zheng * reset all osd connections 5228120a75eaSYan, Zheng */ 5229120a75eaSYan, Zheng void ceph_osdc_reopen_osds(struct ceph_osd_client *osdc) 5230120a75eaSYan, Zheng { 5231120a75eaSYan, Zheng struct rb_node *n; 5232120a75eaSYan, Zheng 5233120a75eaSYan, Zheng down_write(&osdc->lock); 5234120a75eaSYan, Zheng for (n = rb_first(&osdc->osds); n; ) { 5235120a75eaSYan, Zheng struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 5236120a75eaSYan, Zheng 5237120a75eaSYan, Zheng n = rb_next(n); 5238120a75eaSYan, Zheng if (!reopen_osd(osd)) 5239120a75eaSYan, Zheng kick_osd_requests(osd); 5240120a75eaSYan, Zheng } 5241120a75eaSYan, Zheng up_write(&osdc->lock); 5242120a75eaSYan, Zheng } 5243120a75eaSYan, Zheng 5244120a75eaSYan, Zheng /* 52453d14c5d2SYehuda Sadeh * init, shutdown 52463d14c5d2SYehuda Sadeh */ 52473d14c5d2SYehuda Sadeh int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) 52483d14c5d2SYehuda Sadeh { 52493d14c5d2SYehuda Sadeh int err; 52503d14c5d2SYehuda Sadeh 52513d14c5d2SYehuda Sadeh dout("init\n"); 52523d14c5d2SYehuda Sadeh osdc->client = client; 52535aea3dcdSIlya Dryomov init_rwsem(&osdc->lock); 52543d14c5d2SYehuda Sadeh osdc->osds = RB_ROOT; 52553d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osdc->osd_lru); 52569dd2845cSIlya Dryomov spin_lock_init(&osdc->osd_lru_lock); 52575aea3dcdSIlya Dryomov osd_init(&osdc->homeless_osd); 52585aea3dcdSIlya Dryomov osdc->homeless_osd.o_osdc = osdc; 52595aea3dcdSIlya Dryomov osdc->homeless_osd.o_osd = CEPH_HOMELESS_OSD; 5260264048afSIlya Dryomov osdc->last_linger_id = CEPH_LINGER_ID_START; 5261922dab61SIlya Dryomov osdc->linger_requests = RB_ROOT; 52624609245eSIlya Dryomov osdc->map_checks = RB_ROOT; 52634609245eSIlya Dryomov osdc->linger_map_checks = RB_ROOT; 52643d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->timeout_work, handle_timeout); 52653d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->osds_timeout_work, handle_osds_timeout); 52663d14c5d2SYehuda Sadeh 52673d14c5d2SYehuda Sadeh err = -ENOMEM; 5268e5253a7bSIlya Dryomov osdc->osdmap = ceph_osdmap_alloc(); 5269e5253a7bSIlya Dryomov if (!osdc->osdmap) 5270e5253a7bSIlya Dryomov goto out; 5271e5253a7bSIlya Dryomov 52729e767adbSIlya Dryomov osdc->req_mempool = mempool_create_slab_pool(10, 52739e767adbSIlya Dryomov ceph_osd_request_cache); 52743d14c5d2SYehuda Sadeh if (!osdc->req_mempool) 5275e5253a7bSIlya Dryomov goto out_map; 52763d14c5d2SYehuda Sadeh 5277d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op, CEPH_MSG_OSD_OP, 52780d9c1ab3SIlya Dryomov PAGE_SIZE, CEPH_OSD_SLAB_OPS, 10, "osd_op"); 52793d14c5d2SYehuda Sadeh if (err < 0) 52803d14c5d2SYehuda Sadeh goto out_mempool; 5281d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op_reply, CEPH_MSG_OSD_OPREPLY, 52820d9c1ab3SIlya Dryomov PAGE_SIZE, CEPH_OSD_SLAB_OPS, 10, 52830d9c1ab3SIlya Dryomov "osd_op_reply"); 52843d14c5d2SYehuda Sadeh if (err < 0) 52853d14c5d2SYehuda Sadeh goto out_msgpool; 5286a40c4f10SYehuda Sadeh 5287dbcae088SDan Carpenter err = -ENOMEM; 5288a40c4f10SYehuda Sadeh osdc->notify_wq = create_singlethread_workqueue("ceph-watch-notify"); 5289dbcae088SDan Carpenter if (!osdc->notify_wq) 5290c172ec5cSIlya Dryomov goto out_msgpool_reply; 5291c172ec5cSIlya Dryomov 529288bc1922SIlya Dryomov osdc->completion_wq = create_singlethread_workqueue("ceph-completion"); 529388bc1922SIlya Dryomov if (!osdc->completion_wq) 529488bc1922SIlya Dryomov goto out_notify_wq; 529588bc1922SIlya Dryomov 5296fbca9635SIlya Dryomov schedule_delayed_work(&osdc->timeout_work, 5297fbca9635SIlya Dryomov osdc->client->options->osd_keepalive_timeout); 5298b37ee1b9SIlya Dryomov schedule_delayed_work(&osdc->osds_timeout_work, 5299b37ee1b9SIlya Dryomov round_jiffies_relative(osdc->client->options->osd_idle_ttl)); 5300b37ee1b9SIlya Dryomov 53013d14c5d2SYehuda Sadeh return 0; 53023d14c5d2SYehuda Sadeh 530388bc1922SIlya Dryomov out_notify_wq: 530488bc1922SIlya Dryomov destroy_workqueue(osdc->notify_wq); 5305c172ec5cSIlya Dryomov out_msgpool_reply: 5306c172ec5cSIlya Dryomov ceph_msgpool_destroy(&osdc->msgpool_op_reply); 53073d14c5d2SYehuda Sadeh out_msgpool: 53083d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 53093d14c5d2SYehuda Sadeh out_mempool: 53103d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 5311e5253a7bSIlya Dryomov out_map: 5312e5253a7bSIlya Dryomov ceph_osdmap_destroy(osdc->osdmap); 53133d14c5d2SYehuda Sadeh out: 53143d14c5d2SYehuda Sadeh return err; 53153d14c5d2SYehuda Sadeh } 53163d14c5d2SYehuda Sadeh 53173d14c5d2SYehuda Sadeh void ceph_osdc_stop(struct ceph_osd_client *osdc) 53183d14c5d2SYehuda Sadeh { 531988bc1922SIlya Dryomov destroy_workqueue(osdc->completion_wq); 5320a40c4f10SYehuda Sadeh destroy_workqueue(osdc->notify_wq); 53213d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->timeout_work); 53223d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->osds_timeout_work); 532342a2c09fSIlya Dryomov 53245aea3dcdSIlya Dryomov down_write(&osdc->lock); 532542a2c09fSIlya Dryomov while (!RB_EMPTY_ROOT(&osdc->osds)) { 532642a2c09fSIlya Dryomov struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds), 532742a2c09fSIlya Dryomov struct ceph_osd, o_node); 53285aea3dcdSIlya Dryomov close_osd(osd); 532942a2c09fSIlya Dryomov } 53305aea3dcdSIlya Dryomov up_write(&osdc->lock); 533102113a0fSElena Reshetova WARN_ON(refcount_read(&osdc->homeless_osd.o_ref) != 1); 53325aea3dcdSIlya Dryomov osd_cleanup(&osdc->homeless_osd); 53335aea3dcdSIlya Dryomov 53345aea3dcdSIlya Dryomov WARN_ON(!list_empty(&osdc->osd_lru)); 5335922dab61SIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osdc->linger_requests)); 53364609245eSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osdc->map_checks)); 53374609245eSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osdc->linger_map_checks)); 53385aea3dcdSIlya Dryomov WARN_ON(atomic_read(&osdc->num_requests)); 53395aea3dcdSIlya Dryomov WARN_ON(atomic_read(&osdc->num_homeless)); 534042a2c09fSIlya Dryomov 53413d14c5d2SYehuda Sadeh ceph_osdmap_destroy(osdc->osdmap); 53423d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 53433d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 53443d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op_reply); 53453d14c5d2SYehuda Sadeh } 53463d14c5d2SYehuda Sadeh 5347aca39d9eSLuís Henriques int osd_req_op_copy_from_init(struct ceph_osd_request *req, 534823ddf9beSLuis Henriques u64 src_snapid, u64 src_version, 534923ddf9beSLuis Henriques struct ceph_object_id *src_oid, 535023ddf9beSLuis Henriques struct ceph_object_locator *src_oloc, 535123ddf9beSLuis Henriques u32 src_fadvise_flags, 535223ddf9beSLuis Henriques u32 dst_fadvise_flags, 535378beb0ffSLuis Henriques u32 truncate_seq, u64 truncate_size, 535423ddf9beSLuis Henriques u8 copy_from_flags) 535523ddf9beSLuis Henriques { 535623ddf9beSLuis Henriques struct ceph_osd_req_op *op; 535723ddf9beSLuis Henriques struct page **pages; 535823ddf9beSLuis Henriques void *p, *end; 535923ddf9beSLuis Henriques 536023ddf9beSLuis Henriques pages = ceph_alloc_page_vector(1, GFP_KERNEL); 536123ddf9beSLuis Henriques if (IS_ERR(pages)) 536223ddf9beSLuis Henriques return PTR_ERR(pages); 536323ddf9beSLuis Henriques 5364042f6498SJeff Layton op = osd_req_op_init(req, 0, CEPH_OSD_OP_COPY_FROM2, 536578beb0ffSLuis Henriques dst_fadvise_flags); 536623ddf9beSLuis Henriques op->copy_from.snapid = src_snapid; 536723ddf9beSLuis Henriques op->copy_from.src_version = src_version; 536823ddf9beSLuis Henriques op->copy_from.flags = copy_from_flags; 536923ddf9beSLuis Henriques op->copy_from.src_fadvise_flags = src_fadvise_flags; 537023ddf9beSLuis Henriques 537123ddf9beSLuis Henriques p = page_address(pages[0]); 537223ddf9beSLuis Henriques end = p + PAGE_SIZE; 537323ddf9beSLuis Henriques ceph_encode_string(&p, end, src_oid->name, src_oid->name_len); 537423ddf9beSLuis Henriques encode_oloc(&p, end, src_oloc); 537578beb0ffSLuis Henriques ceph_encode_32(&p, truncate_seq); 537678beb0ffSLuis Henriques ceph_encode_64(&p, truncate_size); 537723ddf9beSLuis Henriques op->indata_len = PAGE_SIZE - (end - p); 537823ddf9beSLuis Henriques 537923ddf9beSLuis Henriques ceph_osd_data_pages_init(&op->copy_from.osd_data, pages, 538023ddf9beSLuis Henriques op->indata_len, 0, false, true); 538123ddf9beSLuis Henriques return 0; 538223ddf9beSLuis Henriques } 5383aca39d9eSLuís Henriques EXPORT_SYMBOL(osd_req_op_copy_from_init); 538423ddf9beSLuis Henriques 538557a35dfbSChengguang Xu int __init ceph_osdc_setup(void) 53865522ae0bSAlex Elder { 53873f1af42aSIlya Dryomov size_t size = sizeof(struct ceph_osd_request) + 53883f1af42aSIlya Dryomov CEPH_OSD_SLAB_OPS * sizeof(struct ceph_osd_req_op); 53893f1af42aSIlya Dryomov 53905522ae0bSAlex Elder BUG_ON(ceph_osd_request_cache); 53913f1af42aSIlya Dryomov ceph_osd_request_cache = kmem_cache_create("ceph_osd_request", size, 53923f1af42aSIlya Dryomov 0, 0, NULL); 53935522ae0bSAlex Elder 53945522ae0bSAlex Elder return ceph_osd_request_cache ? 0 : -ENOMEM; 53955522ae0bSAlex Elder } 53965522ae0bSAlex Elder 53975522ae0bSAlex Elder void ceph_osdc_cleanup(void) 53985522ae0bSAlex Elder { 53995522ae0bSAlex Elder BUG_ON(!ceph_osd_request_cache); 54005522ae0bSAlex Elder kmem_cache_destroy(ceph_osd_request_cache); 54015522ae0bSAlex Elder ceph_osd_request_cache = NULL; 54025522ae0bSAlex Elder } 54035522ae0bSAlex Elder 54043d14c5d2SYehuda Sadeh /* 54053d14c5d2SYehuda Sadeh * handle incoming message 54063d14c5d2SYehuda Sadeh */ 54074972cf60SIlya Dryomov static void osd_dispatch(struct ceph_connection *con, struct ceph_msg *msg) 54083d14c5d2SYehuda Sadeh { 54093d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 54105aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 54113d14c5d2SYehuda Sadeh int type = le16_to_cpu(msg->hdr.type); 54123d14c5d2SYehuda Sadeh 54133d14c5d2SYehuda Sadeh switch (type) { 54143d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 54153d14c5d2SYehuda Sadeh ceph_osdc_handle_map(osdc, msg); 54163d14c5d2SYehuda Sadeh break; 54173d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 54185aea3dcdSIlya Dryomov handle_reply(osd, msg); 54193d14c5d2SYehuda Sadeh break; 5420a02a946dSIlya Dryomov case CEPH_MSG_OSD_BACKOFF: 5421a02a946dSIlya Dryomov handle_backoff(osd, msg); 5422a02a946dSIlya Dryomov break; 5423a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 5424a40c4f10SYehuda Sadeh handle_watch_notify(osdc, msg); 5425a40c4f10SYehuda Sadeh break; 54263d14c5d2SYehuda Sadeh 54273d14c5d2SYehuda Sadeh default: 54283d14c5d2SYehuda Sadeh pr_err("received unknown message type %d %s\n", type, 54293d14c5d2SYehuda Sadeh ceph_msg_type_name(type)); 54303d14c5d2SYehuda Sadeh } 54315aea3dcdSIlya Dryomov 54323d14c5d2SYehuda Sadeh ceph_msg_put(msg); 54333d14c5d2SYehuda Sadeh } 54343d14c5d2SYehuda Sadeh 5435f628d799SJeff Layton /* How much sparse data was requested? */ 5436f628d799SJeff Layton static u64 sparse_data_requested(struct ceph_osd_request *req) 5437f628d799SJeff Layton { 5438f628d799SJeff Layton u64 len = 0; 5439f628d799SJeff Layton 5440f628d799SJeff Layton if (req->r_flags & CEPH_OSD_FLAG_READ) { 5441f628d799SJeff Layton int i; 5442f628d799SJeff Layton 5443f628d799SJeff Layton for (i = 0; i < req->r_num_ops; ++i) { 5444f628d799SJeff Layton struct ceph_osd_req_op *op = &req->r_ops[i]; 5445f628d799SJeff Layton 5446f628d799SJeff Layton if (op->op == CEPH_OSD_OP_SPARSE_READ) 5447f628d799SJeff Layton len += op->extent.length; 5448f628d799SJeff Layton } 5449f628d799SJeff Layton } 5450f628d799SJeff Layton return len; 5451f628d799SJeff Layton } 5452f628d799SJeff Layton 54533d14c5d2SYehuda Sadeh /* 5454d15f9d69SIlya Dryomov * Lookup and return message for incoming reply. Don't try to do 5455d15f9d69SIlya Dryomov * anything about a larger than preallocated data portion of the 5456d15f9d69SIlya Dryomov * message at the moment - for now, just skip the message. 54573d14c5d2SYehuda Sadeh */ 54583d14c5d2SYehuda Sadeh static struct ceph_msg *get_reply(struct ceph_connection *con, 54593d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 54603d14c5d2SYehuda Sadeh int *skip) 54613d14c5d2SYehuda Sadeh { 54623d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 54633d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = osd->o_osdc; 54645aea3dcdSIlya Dryomov struct ceph_msg *m = NULL; 54653d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 54663f0a4ac5SIlya Dryomov int front_len = le32_to_cpu(hdr->front_len); 54673d14c5d2SYehuda Sadeh int data_len = le32_to_cpu(hdr->data_len); 54685aea3dcdSIlya Dryomov u64 tid = le64_to_cpu(hdr->tid); 5469f628d799SJeff Layton u64 srlen; 54703d14c5d2SYehuda Sadeh 54715aea3dcdSIlya Dryomov down_read(&osdc->lock); 54725aea3dcdSIlya Dryomov if (!osd_registered(osd)) { 54735aea3dcdSIlya Dryomov dout("%s osd%d unknown, skipping\n", __func__, osd->o_osd); 54745aea3dcdSIlya Dryomov *skip = 1; 54755aea3dcdSIlya Dryomov goto out_unlock_osdc; 54765aea3dcdSIlya Dryomov } 54775aea3dcdSIlya Dryomov WARN_ON(osd->o_osd != le64_to_cpu(hdr->src.num)); 54785aea3dcdSIlya Dryomov 54795aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 54805aea3dcdSIlya Dryomov req = lookup_request(&osd->o_requests, tid); 54813d14c5d2SYehuda Sadeh if (!req) { 5482cd8140c6SIlya Dryomov dout("%s osd%d tid %llu unknown, skipping\n", __func__, 5483cd8140c6SIlya Dryomov osd->o_osd, tid); 5484d15f9d69SIlya Dryomov *skip = 1; 54855aea3dcdSIlya Dryomov goto out_unlock_session; 54863d14c5d2SYehuda Sadeh } 54873d14c5d2SYehuda Sadeh 54888921d114SAlex Elder ceph_msg_revoke_incoming(req->r_reply); 54893d14c5d2SYehuda Sadeh 5490f2be82b0SIlya Dryomov if (front_len > req->r_reply->front_alloc_len) { 5491d15f9d69SIlya Dryomov pr_warn("%s osd%d tid %llu front %d > preallocated %d\n", 5492d15f9d69SIlya Dryomov __func__, osd->o_osd, req->r_tid, front_len, 5493d15f9d69SIlya Dryomov req->r_reply->front_alloc_len); 54943f0a4ac5SIlya Dryomov m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front_len, GFP_NOFS, 54953f0a4ac5SIlya Dryomov false); 54963d14c5d2SYehuda Sadeh if (!m) 54975aea3dcdSIlya Dryomov goto out_unlock_session; 54983d14c5d2SYehuda Sadeh ceph_msg_put(req->r_reply); 54993d14c5d2SYehuda Sadeh req->r_reply = m; 55003d14c5d2SYehuda Sadeh } 55013d14c5d2SYehuda Sadeh 5502f628d799SJeff Layton srlen = sparse_data_requested(req); 5503f628d799SJeff Layton if (!srlen && data_len > req->r_reply->data_length) { 5504d15f9d69SIlya Dryomov pr_warn("%s osd%d tid %llu data %d > preallocated %zu, skipping\n", 5505d15f9d69SIlya Dryomov __func__, osd->o_osd, req->r_tid, data_len, 5506d15f9d69SIlya Dryomov req->r_reply->data_length); 55073d14c5d2SYehuda Sadeh m = NULL; 5508d15f9d69SIlya Dryomov *skip = 1; 55095aea3dcdSIlya Dryomov goto out_unlock_session; 55103d14c5d2SYehuda Sadeh } 5511d15f9d69SIlya Dryomov 5512d15f9d69SIlya Dryomov m = ceph_msg_get(req->r_reply); 5513*da9c33a7SXiubo Li m->sparse_read_total = srlen; 5514f628d799SJeff Layton 55153d14c5d2SYehuda Sadeh dout("get_reply tid %lld %p\n", tid, m); 55163d14c5d2SYehuda Sadeh 55175aea3dcdSIlya Dryomov out_unlock_session: 55185aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 55195aea3dcdSIlya Dryomov out_unlock_osdc: 55205aea3dcdSIlya Dryomov up_read(&osdc->lock); 55213d14c5d2SYehuda Sadeh return m; 55223d14c5d2SYehuda Sadeh } 55233d14c5d2SYehuda Sadeh 552419079203SIlya Dryomov static struct ceph_msg *alloc_msg_with_page_vector(struct ceph_msg_header *hdr) 552519079203SIlya Dryomov { 552619079203SIlya Dryomov struct ceph_msg *m; 552719079203SIlya Dryomov int type = le16_to_cpu(hdr->type); 552819079203SIlya Dryomov u32 front_len = le32_to_cpu(hdr->front_len); 552919079203SIlya Dryomov u32 data_len = le32_to_cpu(hdr->data_len); 553019079203SIlya Dryomov 55310d9c1ab3SIlya Dryomov m = ceph_msg_new2(type, front_len, 1, GFP_NOIO, false); 553219079203SIlya Dryomov if (!m) 553319079203SIlya Dryomov return NULL; 553419079203SIlya Dryomov 553519079203SIlya Dryomov if (data_len) { 553619079203SIlya Dryomov struct page **pages; 553719079203SIlya Dryomov 553819079203SIlya Dryomov pages = ceph_alloc_page_vector(calc_pages_for(0, data_len), 553919079203SIlya Dryomov GFP_NOIO); 5540c22e853aSWei Yongjun if (IS_ERR(pages)) { 554119079203SIlya Dryomov ceph_msg_put(m); 554219079203SIlya Dryomov return NULL; 554319079203SIlya Dryomov } 554419079203SIlya Dryomov 5545e8862740SIlya Dryomov ceph_msg_data_add_pages(m, pages, data_len, 0, true); 554619079203SIlya Dryomov } 554719079203SIlya Dryomov 554819079203SIlya Dryomov return m; 554919079203SIlya Dryomov } 555019079203SIlya Dryomov 55514972cf60SIlya Dryomov static struct ceph_msg *osd_alloc_msg(struct ceph_connection *con, 55523d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 55533d14c5d2SYehuda Sadeh int *skip) 55543d14c5d2SYehuda Sadeh { 55553d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 55563d14c5d2SYehuda Sadeh int type = le16_to_cpu(hdr->type); 55573d14c5d2SYehuda Sadeh 55581c20f2d2SAlex Elder *skip = 0; 55593d14c5d2SYehuda Sadeh switch (type) { 55603d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 5561a02a946dSIlya Dryomov case CEPH_MSG_OSD_BACKOFF: 5562a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 556319079203SIlya Dryomov return alloc_msg_with_page_vector(hdr); 55643d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 55653d14c5d2SYehuda Sadeh return get_reply(con, hdr, skip); 55663d14c5d2SYehuda Sadeh default: 55675aea3dcdSIlya Dryomov pr_warn("%s osd%d unknown msg type %d, skipping\n", __func__, 55685aea3dcdSIlya Dryomov osd->o_osd, type); 55693d14c5d2SYehuda Sadeh *skip = 1; 55703d14c5d2SYehuda Sadeh return NULL; 55713d14c5d2SYehuda Sadeh } 55723d14c5d2SYehuda Sadeh } 55733d14c5d2SYehuda Sadeh 55743d14c5d2SYehuda Sadeh /* 55753d14c5d2SYehuda Sadeh * Wrappers to refcount containing ceph_osd struct 55763d14c5d2SYehuda Sadeh */ 55774972cf60SIlya Dryomov static struct ceph_connection *osd_get_con(struct ceph_connection *con) 55783d14c5d2SYehuda Sadeh { 55793d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 55803d14c5d2SYehuda Sadeh if (get_osd(osd)) 55813d14c5d2SYehuda Sadeh return con; 55823d14c5d2SYehuda Sadeh return NULL; 55833d14c5d2SYehuda Sadeh } 55843d14c5d2SYehuda Sadeh 55854972cf60SIlya Dryomov static void osd_put_con(struct ceph_connection *con) 55863d14c5d2SYehuda Sadeh { 55873d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 55883d14c5d2SYehuda Sadeh put_osd(osd); 55893d14c5d2SYehuda Sadeh } 55903d14c5d2SYehuda Sadeh 55913d14c5d2SYehuda Sadeh /* 55923d14c5d2SYehuda Sadeh * authentication 55933d14c5d2SYehuda Sadeh */ 5594cd1a677cSIlya Dryomov 5595a3530df3SAlex Elder /* 5596a3530df3SAlex Elder * Note: returned pointer is the address of a structure that's 5597a3530df3SAlex Elder * managed separately. Caller must *not* attempt to free it. 5598a3530df3SAlex Elder */ 55994972cf60SIlya Dryomov static struct ceph_auth_handshake * 56004972cf60SIlya Dryomov osd_get_authorizer(struct ceph_connection *con, int *proto, int force_new) 56013d14c5d2SYehuda Sadeh { 56023d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 56033d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 56043d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 560574f1869fSAlex Elder struct ceph_auth_handshake *auth = &o->o_auth; 5606ce287162SIlya Dryomov int ret; 56073d14c5d2SYehuda Sadeh 5608ce287162SIlya Dryomov ret = __ceph_auth_get_authorizer(ac, auth, CEPH_ENTITY_TYPE_OSD, 5609ce287162SIlya Dryomov force_new, proto, NULL, NULL); 56103d14c5d2SYehuda Sadeh if (ret) 5611a3530df3SAlex Elder return ERR_PTR(ret); 561274f1869fSAlex Elder 5613a3530df3SAlex Elder return auth; 56143d14c5d2SYehuda Sadeh } 56153d14c5d2SYehuda Sadeh 56164972cf60SIlya Dryomov static int osd_add_authorizer_challenge(struct ceph_connection *con, 56176daca13dSIlya Dryomov void *challenge_buf, int challenge_buf_len) 56186daca13dSIlya Dryomov { 56196daca13dSIlya Dryomov struct ceph_osd *o = con->private; 56206daca13dSIlya Dryomov struct ceph_osd_client *osdc = o->o_osdc; 56216daca13dSIlya Dryomov struct ceph_auth_client *ac = osdc->client->monc.auth; 56226daca13dSIlya Dryomov 56236daca13dSIlya Dryomov return ceph_auth_add_authorizer_challenge(ac, o->o_auth.authorizer, 56246daca13dSIlya Dryomov challenge_buf, challenge_buf_len); 56256daca13dSIlya Dryomov } 56263d14c5d2SYehuda Sadeh 56274972cf60SIlya Dryomov static int osd_verify_authorizer_reply(struct ceph_connection *con) 56283d14c5d2SYehuda Sadeh { 56293d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 56303d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 56313d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 5632285ea34fSIlya Dryomov struct ceph_auth_handshake *auth = &o->o_auth; 56333d14c5d2SYehuda Sadeh 5634285ea34fSIlya Dryomov return ceph_auth_verify_authorizer_reply(ac, auth->authorizer, 5635285ea34fSIlya Dryomov auth->authorizer_reply_buf, auth->authorizer_reply_buf_len, 5636285ea34fSIlya Dryomov NULL, NULL, NULL, NULL); 56373d14c5d2SYehuda Sadeh } 56383d14c5d2SYehuda Sadeh 56394972cf60SIlya Dryomov static int osd_invalidate_authorizer(struct ceph_connection *con) 56403d14c5d2SYehuda Sadeh { 56413d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 56423d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 56433d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 56443d14c5d2SYehuda Sadeh 564527859f97SSage Weil ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD); 56463d14c5d2SYehuda Sadeh return ceph_monc_validate_auth(&osdc->client->monc); 56473d14c5d2SYehuda Sadeh } 56483d14c5d2SYehuda Sadeh 5649cd1a677cSIlya Dryomov static int osd_get_auth_request(struct ceph_connection *con, 5650cd1a677cSIlya Dryomov void *buf, int *buf_len, 5651cd1a677cSIlya Dryomov void **authorizer, int *authorizer_len) 5652cd1a677cSIlya Dryomov { 5653cd1a677cSIlya Dryomov struct ceph_osd *o = con->private; 5654cd1a677cSIlya Dryomov struct ceph_auth_client *ac = o->o_osdc->client->monc.auth; 5655cd1a677cSIlya Dryomov struct ceph_auth_handshake *auth = &o->o_auth; 5656cd1a677cSIlya Dryomov int ret; 5657cd1a677cSIlya Dryomov 5658cd1a677cSIlya Dryomov ret = ceph_auth_get_authorizer(ac, auth, CEPH_ENTITY_TYPE_OSD, 5659cd1a677cSIlya Dryomov buf, buf_len); 5660cd1a677cSIlya Dryomov if (ret) 5661cd1a677cSIlya Dryomov return ret; 5662cd1a677cSIlya Dryomov 5663cd1a677cSIlya Dryomov *authorizer = auth->authorizer_buf; 5664cd1a677cSIlya Dryomov *authorizer_len = auth->authorizer_buf_len; 5665cd1a677cSIlya Dryomov return 0; 5666cd1a677cSIlya Dryomov } 5667cd1a677cSIlya Dryomov 5668cd1a677cSIlya Dryomov static int osd_handle_auth_reply_more(struct ceph_connection *con, 5669cd1a677cSIlya Dryomov void *reply, int reply_len, 5670cd1a677cSIlya Dryomov void *buf, int *buf_len, 5671cd1a677cSIlya Dryomov void **authorizer, int *authorizer_len) 5672cd1a677cSIlya Dryomov { 5673cd1a677cSIlya Dryomov struct ceph_osd *o = con->private; 5674cd1a677cSIlya Dryomov struct ceph_auth_client *ac = o->o_osdc->client->monc.auth; 5675cd1a677cSIlya Dryomov struct ceph_auth_handshake *auth = &o->o_auth; 5676cd1a677cSIlya Dryomov int ret; 5677cd1a677cSIlya Dryomov 5678cd1a677cSIlya Dryomov ret = ceph_auth_handle_svc_reply_more(ac, auth, reply, reply_len, 5679cd1a677cSIlya Dryomov buf, buf_len); 5680cd1a677cSIlya Dryomov if (ret) 5681cd1a677cSIlya Dryomov return ret; 5682cd1a677cSIlya Dryomov 5683cd1a677cSIlya Dryomov *authorizer = auth->authorizer_buf; 5684cd1a677cSIlya Dryomov *authorizer_len = auth->authorizer_buf_len; 5685cd1a677cSIlya Dryomov return 0; 5686cd1a677cSIlya Dryomov } 5687cd1a677cSIlya Dryomov 5688cd1a677cSIlya Dryomov static int osd_handle_auth_done(struct ceph_connection *con, 5689cd1a677cSIlya Dryomov u64 global_id, void *reply, int reply_len, 5690cd1a677cSIlya Dryomov u8 *session_key, int *session_key_len, 5691cd1a677cSIlya Dryomov u8 *con_secret, int *con_secret_len) 5692cd1a677cSIlya Dryomov { 5693cd1a677cSIlya Dryomov struct ceph_osd *o = con->private; 5694cd1a677cSIlya Dryomov struct ceph_auth_client *ac = o->o_osdc->client->monc.auth; 5695cd1a677cSIlya Dryomov struct ceph_auth_handshake *auth = &o->o_auth; 5696cd1a677cSIlya Dryomov 5697cd1a677cSIlya Dryomov return ceph_auth_handle_svc_reply_done(ac, auth, reply, reply_len, 5698cd1a677cSIlya Dryomov session_key, session_key_len, 5699cd1a677cSIlya Dryomov con_secret, con_secret_len); 5700cd1a677cSIlya Dryomov } 5701cd1a677cSIlya Dryomov 5702cd1a677cSIlya Dryomov static int osd_handle_auth_bad_method(struct ceph_connection *con, 5703cd1a677cSIlya Dryomov int used_proto, int result, 5704cd1a677cSIlya Dryomov const int *allowed_protos, int proto_cnt, 5705cd1a677cSIlya Dryomov const int *allowed_modes, int mode_cnt) 5706cd1a677cSIlya Dryomov { 5707cd1a677cSIlya Dryomov struct ceph_osd *o = con->private; 5708cd1a677cSIlya Dryomov struct ceph_mon_client *monc = &o->o_osdc->client->monc; 5709cd1a677cSIlya Dryomov int ret; 5710cd1a677cSIlya Dryomov 5711cd1a677cSIlya Dryomov if (ceph_auth_handle_bad_authorizer(monc->auth, CEPH_ENTITY_TYPE_OSD, 5712cd1a677cSIlya Dryomov used_proto, result, 5713cd1a677cSIlya Dryomov allowed_protos, proto_cnt, 5714cd1a677cSIlya Dryomov allowed_modes, mode_cnt)) { 5715cd1a677cSIlya Dryomov ret = ceph_monc_validate_auth(monc); 5716cd1a677cSIlya Dryomov if (ret) 5717cd1a677cSIlya Dryomov return ret; 5718cd1a677cSIlya Dryomov } 5719cd1a677cSIlya Dryomov 5720cd1a677cSIlya Dryomov return -EACCES; 5721cd1a677cSIlya Dryomov } 5722cd1a677cSIlya Dryomov 57238cb441c0SIlya Dryomov static void osd_reencode_message(struct ceph_msg *msg) 57248cb441c0SIlya Dryomov { 5725914902afSIlya Dryomov int type = le16_to_cpu(msg->hdr.type); 5726914902afSIlya Dryomov 5727914902afSIlya Dryomov if (type == CEPH_MSG_OSD_OP) 57288cb441c0SIlya Dryomov encode_request_finish(msg); 57298cb441c0SIlya Dryomov } 57308cb441c0SIlya Dryomov 573179dbd1baSIlya Dryomov static int osd_sign_message(struct ceph_msg *msg) 573233d07337SYan, Zheng { 573379dbd1baSIlya Dryomov struct ceph_osd *o = msg->con->private; 573433d07337SYan, Zheng struct ceph_auth_handshake *auth = &o->o_auth; 573579dbd1baSIlya Dryomov 573633d07337SYan, Zheng return ceph_auth_sign_message(auth, msg); 573733d07337SYan, Zheng } 573833d07337SYan, Zheng 573979dbd1baSIlya Dryomov static int osd_check_message_signature(struct ceph_msg *msg) 574033d07337SYan, Zheng { 574179dbd1baSIlya Dryomov struct ceph_osd *o = msg->con->private; 574233d07337SYan, Zheng struct ceph_auth_handshake *auth = &o->o_auth; 574379dbd1baSIlya Dryomov 574433d07337SYan, Zheng return ceph_auth_check_message_signature(auth, msg); 574533d07337SYan, Zheng } 574633d07337SYan, Zheng 5747f628d799SJeff Layton static void advance_cursor(struct ceph_msg_data_cursor *cursor, size_t len, 5748f628d799SJeff Layton bool zero) 5749f628d799SJeff Layton { 5750f628d799SJeff Layton while (len) { 5751f628d799SJeff Layton struct page *page; 5752f628d799SJeff Layton size_t poff, plen; 5753f628d799SJeff Layton 5754f628d799SJeff Layton page = ceph_msg_data_next(cursor, &poff, &plen); 5755f628d799SJeff Layton if (plen > len) 5756f628d799SJeff Layton plen = len; 5757f628d799SJeff Layton if (zero) 5758f628d799SJeff Layton zero_user_segment(page, poff, poff + plen); 5759f628d799SJeff Layton len -= plen; 5760f628d799SJeff Layton ceph_msg_data_advance(cursor, plen); 5761f628d799SJeff Layton } 5762f628d799SJeff Layton } 5763f628d799SJeff Layton 5764f628d799SJeff Layton static int prep_next_sparse_read(struct ceph_connection *con, 5765f628d799SJeff Layton struct ceph_msg_data_cursor *cursor) 5766f628d799SJeff Layton { 5767f628d799SJeff Layton struct ceph_osd *o = con->private; 5768f628d799SJeff Layton struct ceph_sparse_read *sr = &o->o_sparse_read; 5769f628d799SJeff Layton struct ceph_osd_request *req; 5770f628d799SJeff Layton struct ceph_osd_req_op *op; 5771f628d799SJeff Layton 5772f628d799SJeff Layton spin_lock(&o->o_requests_lock); 5773f628d799SJeff Layton req = lookup_request(&o->o_requests, le64_to_cpu(con->in_msg->hdr.tid)); 5774f628d799SJeff Layton if (!req) { 5775f628d799SJeff Layton spin_unlock(&o->o_requests_lock); 5776f628d799SJeff Layton return -EBADR; 5777f628d799SJeff Layton } 5778f628d799SJeff Layton 5779f628d799SJeff Layton if (o->o_sparse_op_idx < 0) { 5780*da9c33a7SXiubo Li dout("%s: [%d] starting new sparse read req\n", 5781*da9c33a7SXiubo Li __func__, o->o_osd); 5782f628d799SJeff Layton } else { 5783f628d799SJeff Layton u64 end; 5784f628d799SJeff Layton 5785f628d799SJeff Layton op = &req->r_ops[o->o_sparse_op_idx]; 5786f628d799SJeff Layton 5787f628d799SJeff Layton WARN_ON_ONCE(op->extent.sparse_ext); 5788f628d799SJeff Layton 5789f628d799SJeff Layton /* hand back buffer we took earlier */ 5790f628d799SJeff Layton op->extent.sparse_ext = sr->sr_extent; 5791f628d799SJeff Layton sr->sr_extent = NULL; 5792f628d799SJeff Layton op->extent.sparse_ext_cnt = sr->sr_count; 5793f628d799SJeff Layton sr->sr_ext_len = 0; 5794f628d799SJeff Layton dout("%s: [%d] completed extent array len %d cursor->resid %zd\n", 5795f628d799SJeff Layton __func__, o->o_osd, op->extent.sparse_ext_cnt, cursor->resid); 5796f628d799SJeff Layton /* Advance to end of data for this operation */ 5797f628d799SJeff Layton end = ceph_sparse_ext_map_end(op); 5798f628d799SJeff Layton if (end < sr->sr_req_len) 5799f628d799SJeff Layton advance_cursor(cursor, sr->sr_req_len - end, false); 5800f628d799SJeff Layton } 5801f628d799SJeff Layton 5802f628d799SJeff Layton ceph_init_sparse_read(sr); 5803f628d799SJeff Layton 5804f628d799SJeff Layton /* find next op in this request (if any) */ 5805f628d799SJeff Layton while (++o->o_sparse_op_idx < req->r_num_ops) { 5806f628d799SJeff Layton op = &req->r_ops[o->o_sparse_op_idx]; 5807f628d799SJeff Layton if (op->op == CEPH_OSD_OP_SPARSE_READ) 5808f628d799SJeff Layton goto found; 5809f628d799SJeff Layton } 5810f628d799SJeff Layton 5811f628d799SJeff Layton /* reset for next sparse read request */ 5812f628d799SJeff Layton spin_unlock(&o->o_requests_lock); 5813f628d799SJeff Layton o->o_sparse_op_idx = -1; 5814f628d799SJeff Layton return 0; 5815f628d799SJeff Layton found: 5816f628d799SJeff Layton sr->sr_req_off = op->extent.offset; 5817f628d799SJeff Layton sr->sr_req_len = op->extent.length; 5818f628d799SJeff Layton sr->sr_pos = sr->sr_req_off; 5819f628d799SJeff Layton dout("%s: [%d] new sparse read op at idx %d 0x%llx~0x%llx\n", __func__, 5820f628d799SJeff Layton o->o_osd, o->o_sparse_op_idx, sr->sr_req_off, sr->sr_req_len); 5821f628d799SJeff Layton 5822f628d799SJeff Layton /* hand off request's sparse extent map buffer */ 5823f628d799SJeff Layton sr->sr_ext_len = op->extent.sparse_ext_cnt; 5824f628d799SJeff Layton op->extent.sparse_ext_cnt = 0; 5825f628d799SJeff Layton sr->sr_extent = op->extent.sparse_ext; 5826f628d799SJeff Layton op->extent.sparse_ext = NULL; 5827f628d799SJeff Layton 5828f628d799SJeff Layton spin_unlock(&o->o_requests_lock); 5829f628d799SJeff Layton return 1; 5830f628d799SJeff Layton } 5831f628d799SJeff Layton 5832f628d799SJeff Layton #ifdef __BIG_ENDIAN 5833f628d799SJeff Layton static inline void convert_extent_map(struct ceph_sparse_read *sr) 5834f628d799SJeff Layton { 5835f628d799SJeff Layton int i; 5836f628d799SJeff Layton 5837f628d799SJeff Layton for (i = 0; i < sr->sr_count; i++) { 5838f628d799SJeff Layton struct ceph_sparse_extent *ext = &sr->sr_extent[i]; 5839f628d799SJeff Layton 5840f628d799SJeff Layton ext->off = le64_to_cpu((__force __le64)ext->off); 5841f628d799SJeff Layton ext->len = le64_to_cpu((__force __le64)ext->len); 5842f628d799SJeff Layton } 5843f628d799SJeff Layton } 5844f628d799SJeff Layton #else 5845f628d799SJeff Layton static inline void convert_extent_map(struct ceph_sparse_read *sr) 5846f628d799SJeff Layton { 5847f628d799SJeff Layton } 5848f628d799SJeff Layton #endif 5849f628d799SJeff Layton 5850f628d799SJeff Layton #define MAX_EXTENTS 4096 5851f628d799SJeff Layton 5852f628d799SJeff Layton static int osd_sparse_read(struct ceph_connection *con, 5853f628d799SJeff Layton struct ceph_msg_data_cursor *cursor, 5854f628d799SJeff Layton char **pbuf) 5855f628d799SJeff Layton { 5856f628d799SJeff Layton struct ceph_osd *o = con->private; 5857f628d799SJeff Layton struct ceph_sparse_read *sr = &o->o_sparse_read; 5858f628d799SJeff Layton u32 count = sr->sr_count; 5859f628d799SJeff Layton u64 eoff, elen; 5860f628d799SJeff Layton int ret; 5861f628d799SJeff Layton 5862f628d799SJeff Layton switch (sr->sr_state) { 5863f628d799SJeff Layton case CEPH_SPARSE_READ_HDR: 5864f628d799SJeff Layton next_op: 5865f628d799SJeff Layton ret = prep_next_sparse_read(con, cursor); 5866f628d799SJeff Layton if (ret <= 0) 5867f628d799SJeff Layton return ret; 5868f628d799SJeff Layton 5869f628d799SJeff Layton /* number of extents */ 5870f628d799SJeff Layton ret = sizeof(sr->sr_count); 5871f628d799SJeff Layton *pbuf = (char *)&sr->sr_count; 5872f628d799SJeff Layton sr->sr_state = CEPH_SPARSE_READ_EXTENTS; 5873f628d799SJeff Layton break; 5874f628d799SJeff Layton case CEPH_SPARSE_READ_EXTENTS: 5875f628d799SJeff Layton /* Convert sr_count to host-endian */ 5876f628d799SJeff Layton count = le32_to_cpu((__force __le32)sr->sr_count); 5877f628d799SJeff Layton sr->sr_count = count; 5878f628d799SJeff Layton dout("[%d] got %u extents\n", o->o_osd, count); 5879f628d799SJeff Layton 5880f628d799SJeff Layton if (count > 0) { 5881f628d799SJeff Layton if (!sr->sr_extent || count > sr->sr_ext_len) { 5882f628d799SJeff Layton /* 5883f628d799SJeff Layton * Apply a hard cap to the number of extents. 5884f628d799SJeff Layton * If we have more, assume something is wrong. 5885f628d799SJeff Layton */ 5886f628d799SJeff Layton if (count > MAX_EXTENTS) { 5887f628d799SJeff Layton dout("%s: OSD returned 0x%x extents in a single reply!\n", 5888f628d799SJeff Layton __func__, count); 5889f628d799SJeff Layton return -EREMOTEIO; 5890f628d799SJeff Layton } 5891f628d799SJeff Layton 5892f628d799SJeff Layton /* no extent array provided, or too short */ 5893f628d799SJeff Layton kfree(sr->sr_extent); 5894f628d799SJeff Layton sr->sr_extent = kmalloc_array(count, 5895f628d799SJeff Layton sizeof(*sr->sr_extent), 5896f628d799SJeff Layton GFP_NOIO); 5897f628d799SJeff Layton if (!sr->sr_extent) 5898f628d799SJeff Layton return -ENOMEM; 5899f628d799SJeff Layton sr->sr_ext_len = count; 5900f628d799SJeff Layton } 5901f628d799SJeff Layton ret = count * sizeof(*sr->sr_extent); 5902f628d799SJeff Layton *pbuf = (char *)sr->sr_extent; 5903f628d799SJeff Layton sr->sr_state = CEPH_SPARSE_READ_DATA_LEN; 5904f628d799SJeff Layton break; 5905f628d799SJeff Layton } 5906f628d799SJeff Layton /* No extents? Read data len */ 5907f628d799SJeff Layton fallthrough; 5908f628d799SJeff Layton case CEPH_SPARSE_READ_DATA_LEN: 5909f628d799SJeff Layton convert_extent_map(sr); 5910f628d799SJeff Layton ret = sizeof(sr->sr_datalen); 5911f628d799SJeff Layton *pbuf = (char *)&sr->sr_datalen; 5912f628d799SJeff Layton sr->sr_state = CEPH_SPARSE_READ_DATA; 5913f628d799SJeff Layton break; 5914f628d799SJeff Layton case CEPH_SPARSE_READ_DATA: 5915f628d799SJeff Layton if (sr->sr_index >= count) { 5916f628d799SJeff Layton sr->sr_state = CEPH_SPARSE_READ_HDR; 5917f628d799SJeff Layton goto next_op; 5918f628d799SJeff Layton } 5919f628d799SJeff Layton 5920f628d799SJeff Layton eoff = sr->sr_extent[sr->sr_index].off; 5921f628d799SJeff Layton elen = sr->sr_extent[sr->sr_index].len; 5922f628d799SJeff Layton 5923f628d799SJeff Layton dout("[%d] ext %d off 0x%llx len 0x%llx\n", 5924f628d799SJeff Layton o->o_osd, sr->sr_index, eoff, elen); 5925f628d799SJeff Layton 5926f628d799SJeff Layton if (elen > INT_MAX) { 5927f628d799SJeff Layton dout("Sparse read extent length too long (0x%llx)\n", 5928f628d799SJeff Layton elen); 5929f628d799SJeff Layton return -EREMOTEIO; 5930f628d799SJeff Layton } 5931f628d799SJeff Layton 5932f628d799SJeff Layton /* zero out anything from sr_pos to start of extent */ 5933f628d799SJeff Layton if (sr->sr_pos < eoff) 5934f628d799SJeff Layton advance_cursor(cursor, eoff - sr->sr_pos, true); 5935f628d799SJeff Layton 5936f628d799SJeff Layton /* Set position to end of extent */ 5937f628d799SJeff Layton sr->sr_pos = eoff + elen; 5938f628d799SJeff Layton 5939f628d799SJeff Layton /* send back the new length and nullify the ptr */ 5940f628d799SJeff Layton cursor->sr_resid = elen; 5941f628d799SJeff Layton ret = elen; 5942f628d799SJeff Layton *pbuf = NULL; 5943f628d799SJeff Layton 5944f628d799SJeff Layton /* Bump the array index */ 5945f628d799SJeff Layton ++sr->sr_index; 5946f628d799SJeff Layton break; 5947f628d799SJeff Layton } 5948f628d799SJeff Layton return ret; 5949f628d799SJeff Layton } 5950f628d799SJeff Layton 59513d14c5d2SYehuda Sadeh static const struct ceph_connection_operations osd_con_ops = { 59524972cf60SIlya Dryomov .get = osd_get_con, 59534972cf60SIlya Dryomov .put = osd_put_con, 5954f628d799SJeff Layton .sparse_read = osd_sparse_read, 59554972cf60SIlya Dryomov .alloc_msg = osd_alloc_msg, 59564972cf60SIlya Dryomov .dispatch = osd_dispatch, 59574972cf60SIlya Dryomov .fault = osd_fault, 59588cb441c0SIlya Dryomov .reencode_message = osd_reencode_message, 59594972cf60SIlya Dryomov .get_authorizer = osd_get_authorizer, 59604972cf60SIlya Dryomov .add_authorizer_challenge = osd_add_authorizer_challenge, 59614972cf60SIlya Dryomov .verify_authorizer_reply = osd_verify_authorizer_reply, 59624972cf60SIlya Dryomov .invalidate_authorizer = osd_invalidate_authorizer, 596379dbd1baSIlya Dryomov .sign_message = osd_sign_message, 596479dbd1baSIlya Dryomov .check_message_signature = osd_check_message_signature, 5965cd1a677cSIlya Dryomov .get_auth_request = osd_get_auth_request, 5966cd1a677cSIlya Dryomov .handle_auth_reply_more = osd_handle_auth_reply_more, 5967cd1a677cSIlya Dryomov .handle_auth_done = osd_handle_auth_done, 5968cd1a677cSIlya Dryomov .handle_auth_bad_method = osd_handle_auth_bad_method, 59693d14c5d2SYehuda Sadeh }; 5970