1a4ce40a9SAlex Elder 23d14c5d2SYehuda Sadeh #include <linux/ceph/ceph_debug.h> 33d14c5d2SYehuda Sadeh 43d14c5d2SYehuda Sadeh #include <linux/module.h> 53d14c5d2SYehuda Sadeh #include <linux/err.h> 63d14c5d2SYehuda Sadeh #include <linux/highmem.h> 73d14c5d2SYehuda Sadeh #include <linux/mm.h> 83d14c5d2SYehuda Sadeh #include <linux/pagemap.h> 93d14c5d2SYehuda Sadeh #include <linux/slab.h> 103d14c5d2SYehuda Sadeh #include <linux/uaccess.h> 113d14c5d2SYehuda Sadeh #ifdef CONFIG_BLOCK 123d14c5d2SYehuda Sadeh #include <linux/bio.h> 133d14c5d2SYehuda Sadeh #endif 143d14c5d2SYehuda Sadeh 153d14c5d2SYehuda Sadeh #include <linux/ceph/libceph.h> 163d14c5d2SYehuda Sadeh #include <linux/ceph/osd_client.h> 173d14c5d2SYehuda Sadeh #include <linux/ceph/messenger.h> 183d14c5d2SYehuda Sadeh #include <linux/ceph/decode.h> 193d14c5d2SYehuda Sadeh #include <linux/ceph/auth.h> 203d14c5d2SYehuda Sadeh #include <linux/ceph/pagelist.h> 213d14c5d2SYehuda Sadeh 223d14c5d2SYehuda Sadeh #define OSD_OPREPLY_FRONT_LEN 512 233d14c5d2SYehuda Sadeh 245522ae0bSAlex Elder static struct kmem_cache *ceph_osd_request_cache; 255522ae0bSAlex Elder 263d14c5d2SYehuda Sadeh static const struct ceph_connection_operations osd_con_ops; 273d14c5d2SYehuda Sadeh 283d14c5d2SYehuda Sadeh /* 293d14c5d2SYehuda Sadeh * Implement client access to distributed object storage cluster. 303d14c5d2SYehuda Sadeh * 313d14c5d2SYehuda Sadeh * All data objects are stored within a cluster/cloud of OSDs, or 323d14c5d2SYehuda Sadeh * "object storage devices." (Note that Ceph OSDs have _nothing_ to 333d14c5d2SYehuda Sadeh * do with the T10 OSD extensions to SCSI.) Ceph OSDs are simply 343d14c5d2SYehuda Sadeh * remote daemons serving up and coordinating consistent and safe 353d14c5d2SYehuda Sadeh * access to storage. 363d14c5d2SYehuda Sadeh * 373d14c5d2SYehuda Sadeh * Cluster membership and the mapping of data objects onto storage devices 383d14c5d2SYehuda Sadeh * are described by the osd map. 393d14c5d2SYehuda Sadeh * 403d14c5d2SYehuda Sadeh * We keep track of pending OSD requests (read, write), resubmit 413d14c5d2SYehuda Sadeh * requests to different OSDs when the cluster topology/data layout 423d14c5d2SYehuda Sadeh * change, or retry the affected requests when the communications 433d14c5d2SYehuda Sadeh * channel with an OSD is reset. 443d14c5d2SYehuda Sadeh */ 453d14c5d2SYehuda Sadeh 465aea3dcdSIlya Dryomov static void link_request(struct ceph_osd *osd, struct ceph_osd_request *req); 475aea3dcdSIlya Dryomov static void unlink_request(struct ceph_osd *osd, struct ceph_osd_request *req); 48922dab61SIlya Dryomov static void link_linger(struct ceph_osd *osd, 49922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq); 50922dab61SIlya Dryomov static void unlink_linger(struct ceph_osd *osd, 51922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq); 525aea3dcdSIlya Dryomov 535aea3dcdSIlya Dryomov #if 1 545aea3dcdSIlya Dryomov static inline bool rwsem_is_wrlocked(struct rw_semaphore *sem) 555aea3dcdSIlya Dryomov { 565aea3dcdSIlya Dryomov bool wrlocked = true; 575aea3dcdSIlya Dryomov 585aea3dcdSIlya Dryomov if (unlikely(down_read_trylock(sem))) { 595aea3dcdSIlya Dryomov wrlocked = false; 605aea3dcdSIlya Dryomov up_read(sem); 615aea3dcdSIlya Dryomov } 625aea3dcdSIlya Dryomov 635aea3dcdSIlya Dryomov return wrlocked; 645aea3dcdSIlya Dryomov } 655aea3dcdSIlya Dryomov static inline void verify_osdc_locked(struct ceph_osd_client *osdc) 665aea3dcdSIlya Dryomov { 675aea3dcdSIlya Dryomov WARN_ON(!rwsem_is_locked(&osdc->lock)); 685aea3dcdSIlya Dryomov } 695aea3dcdSIlya Dryomov static inline void verify_osdc_wrlocked(struct ceph_osd_client *osdc) 705aea3dcdSIlya Dryomov { 715aea3dcdSIlya Dryomov WARN_ON(!rwsem_is_wrlocked(&osdc->lock)); 725aea3dcdSIlya Dryomov } 735aea3dcdSIlya Dryomov static inline void verify_osd_locked(struct ceph_osd *osd) 745aea3dcdSIlya Dryomov { 755aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 765aea3dcdSIlya Dryomov 775aea3dcdSIlya Dryomov WARN_ON(!(mutex_is_locked(&osd->lock) && 785aea3dcdSIlya Dryomov rwsem_is_locked(&osdc->lock)) && 795aea3dcdSIlya Dryomov !rwsem_is_wrlocked(&osdc->lock)); 805aea3dcdSIlya Dryomov } 81922dab61SIlya Dryomov static inline void verify_lreq_locked(struct ceph_osd_linger_request *lreq) 82922dab61SIlya Dryomov { 83922dab61SIlya Dryomov WARN_ON(!mutex_is_locked(&lreq->lock)); 84922dab61SIlya Dryomov } 855aea3dcdSIlya Dryomov #else 865aea3dcdSIlya Dryomov static inline void verify_osdc_locked(struct ceph_osd_client *osdc) { } 875aea3dcdSIlya Dryomov static inline void verify_osdc_wrlocked(struct ceph_osd_client *osdc) { } 885aea3dcdSIlya Dryomov static inline void verify_osd_locked(struct ceph_osd *osd) { } 89922dab61SIlya Dryomov static inline void verify_lreq_locked(struct ceph_osd_linger_request *lreq) { } 905aea3dcdSIlya Dryomov #endif 915aea3dcdSIlya Dryomov 923d14c5d2SYehuda Sadeh /* 933d14c5d2SYehuda Sadeh * calculate the mapping of a file extent onto an object, and fill out the 943d14c5d2SYehuda Sadeh * request accordingly. shorten extent as necessary if it crosses an 953d14c5d2SYehuda Sadeh * object boundary. 963d14c5d2SYehuda Sadeh * 973d14c5d2SYehuda Sadeh * fill osd op in request message. 983d14c5d2SYehuda Sadeh */ 99dbe0fc41SAlex Elder static int calc_layout(struct ceph_file_layout *layout, u64 off, u64 *plen, 100a19dadfbSAlex Elder u64 *objnum, u64 *objoff, u64 *objlen) 1013d14c5d2SYehuda Sadeh { 10260e56f13SAlex Elder u64 orig_len = *plen; 103d63b77f4SSage Weil int r; 1043d14c5d2SYehuda Sadeh 10560e56f13SAlex Elder /* object extent? */ 10675d1c941SAlex Elder r = ceph_calc_file_object_mapping(layout, off, orig_len, objnum, 10775d1c941SAlex Elder objoff, objlen); 108d63b77f4SSage Weil if (r < 0) 109d63b77f4SSage Weil return r; 11075d1c941SAlex Elder if (*objlen < orig_len) { 11175d1c941SAlex Elder *plen = *objlen; 11260e56f13SAlex Elder dout(" skipping last %llu, final file extent %llu~%llu\n", 11360e56f13SAlex Elder orig_len - *plen, off, *plen); 11460e56f13SAlex Elder } 11560e56f13SAlex Elder 11675d1c941SAlex Elder dout("calc_layout objnum=%llx %llu~%llu\n", *objnum, *objoff, *objlen); 1173d14c5d2SYehuda Sadeh 1183ff5f385SAlex Elder return 0; 1193d14c5d2SYehuda Sadeh } 1203d14c5d2SYehuda Sadeh 121c54d47bfSAlex Elder static void ceph_osd_data_init(struct ceph_osd_data *osd_data) 122c54d47bfSAlex Elder { 123c54d47bfSAlex Elder memset(osd_data, 0, sizeof (*osd_data)); 124c54d47bfSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_NONE; 125c54d47bfSAlex Elder } 126c54d47bfSAlex Elder 127a4ce40a9SAlex Elder static void ceph_osd_data_pages_init(struct ceph_osd_data *osd_data, 12843bfe5deSAlex Elder struct page **pages, u64 length, u32 alignment, 12943bfe5deSAlex Elder bool pages_from_pool, bool own_pages) 13043bfe5deSAlex Elder { 13143bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_PAGES; 13243bfe5deSAlex Elder osd_data->pages = pages; 13343bfe5deSAlex Elder osd_data->length = length; 13443bfe5deSAlex Elder osd_data->alignment = alignment; 13543bfe5deSAlex Elder osd_data->pages_from_pool = pages_from_pool; 13643bfe5deSAlex Elder osd_data->own_pages = own_pages; 13743bfe5deSAlex Elder } 13843bfe5deSAlex Elder 139a4ce40a9SAlex Elder static void ceph_osd_data_pagelist_init(struct ceph_osd_data *osd_data, 14043bfe5deSAlex Elder struct ceph_pagelist *pagelist) 14143bfe5deSAlex Elder { 14243bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_PAGELIST; 14343bfe5deSAlex Elder osd_data->pagelist = pagelist; 14443bfe5deSAlex Elder } 14543bfe5deSAlex Elder 14643bfe5deSAlex Elder #ifdef CONFIG_BLOCK 147a4ce40a9SAlex Elder static void ceph_osd_data_bio_init(struct ceph_osd_data *osd_data, 14843bfe5deSAlex Elder struct bio *bio, size_t bio_length) 14943bfe5deSAlex Elder { 15043bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_BIO; 15143bfe5deSAlex Elder osd_data->bio = bio; 15243bfe5deSAlex Elder osd_data->bio_length = bio_length; 15343bfe5deSAlex Elder } 15443bfe5deSAlex Elder #endif /* CONFIG_BLOCK */ 15543bfe5deSAlex Elder 156863c7eb5SAlex Elder #define osd_req_op_data(oreq, whch, typ, fld) \ 157863c7eb5SAlex Elder ({ \ 1588a703a38SIoana Ciornei struct ceph_osd_request *__oreq = (oreq); \ 1598a703a38SIoana Ciornei unsigned int __whch = (whch); \ 1608a703a38SIoana Ciornei BUG_ON(__whch >= __oreq->r_num_ops); \ 1618a703a38SIoana Ciornei &__oreq->r_ops[__whch].typ.fld; \ 162863c7eb5SAlex Elder }) 163863c7eb5SAlex Elder 16449719778SAlex Elder static struct ceph_osd_data * 16549719778SAlex Elder osd_req_op_raw_data_in(struct ceph_osd_request *osd_req, unsigned int which) 16649719778SAlex Elder { 16749719778SAlex Elder BUG_ON(which >= osd_req->r_num_ops); 16849719778SAlex Elder 16949719778SAlex Elder return &osd_req->r_ops[which].raw_data_in; 17049719778SAlex Elder } 17149719778SAlex Elder 172a4ce40a9SAlex Elder struct ceph_osd_data * 173a4ce40a9SAlex Elder osd_req_op_extent_osd_data(struct ceph_osd_request *osd_req, 174406e2c9fSAlex Elder unsigned int which) 175a4ce40a9SAlex Elder { 176863c7eb5SAlex Elder return osd_req_op_data(osd_req, which, extent, osd_data); 177a4ce40a9SAlex Elder } 178a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data); 179a4ce40a9SAlex Elder 18049719778SAlex Elder void osd_req_op_raw_data_in_pages(struct ceph_osd_request *osd_req, 18149719778SAlex Elder unsigned int which, struct page **pages, 18249719778SAlex Elder u64 length, u32 alignment, 18349719778SAlex Elder bool pages_from_pool, bool own_pages) 18449719778SAlex Elder { 18549719778SAlex Elder struct ceph_osd_data *osd_data; 18649719778SAlex Elder 18749719778SAlex Elder osd_data = osd_req_op_raw_data_in(osd_req, which); 18849719778SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 18949719778SAlex Elder pages_from_pool, own_pages); 19049719778SAlex Elder } 19149719778SAlex Elder EXPORT_SYMBOL(osd_req_op_raw_data_in_pages); 19249719778SAlex Elder 193a4ce40a9SAlex Elder void osd_req_op_extent_osd_data_pages(struct ceph_osd_request *osd_req, 194406e2c9fSAlex Elder unsigned int which, struct page **pages, 195406e2c9fSAlex Elder u64 length, u32 alignment, 196a4ce40a9SAlex Elder bool pages_from_pool, bool own_pages) 197a4ce40a9SAlex Elder { 198a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 199a4ce40a9SAlex Elder 200863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 201a4ce40a9SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 202a4ce40a9SAlex Elder pages_from_pool, own_pages); 203a4ce40a9SAlex Elder } 204a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data_pages); 205a4ce40a9SAlex Elder 206a4ce40a9SAlex Elder void osd_req_op_extent_osd_data_pagelist(struct ceph_osd_request *osd_req, 207406e2c9fSAlex Elder unsigned int which, struct ceph_pagelist *pagelist) 208a4ce40a9SAlex Elder { 209a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 210a4ce40a9SAlex Elder 211863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 212a4ce40a9SAlex Elder ceph_osd_data_pagelist_init(osd_data, pagelist); 213a4ce40a9SAlex Elder } 214a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data_pagelist); 215a4ce40a9SAlex Elder 216a4ce40a9SAlex Elder #ifdef CONFIG_BLOCK 217a4ce40a9SAlex Elder void osd_req_op_extent_osd_data_bio(struct ceph_osd_request *osd_req, 218406e2c9fSAlex Elder unsigned int which, struct bio *bio, size_t bio_length) 219a4ce40a9SAlex Elder { 220a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 221863c7eb5SAlex Elder 222863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 223a4ce40a9SAlex Elder ceph_osd_data_bio_init(osd_data, bio, bio_length); 224a4ce40a9SAlex Elder } 225a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data_bio); 226a4ce40a9SAlex Elder #endif /* CONFIG_BLOCK */ 227a4ce40a9SAlex Elder 228a4ce40a9SAlex Elder static void osd_req_op_cls_request_info_pagelist( 229a4ce40a9SAlex Elder struct ceph_osd_request *osd_req, 230a4ce40a9SAlex Elder unsigned int which, struct ceph_pagelist *pagelist) 231a4ce40a9SAlex Elder { 232a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 233a4ce40a9SAlex Elder 234863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, request_info); 235a4ce40a9SAlex Elder ceph_osd_data_pagelist_init(osd_data, pagelist); 236a4ce40a9SAlex Elder } 237a4ce40a9SAlex Elder 23804017e29SAlex Elder void osd_req_op_cls_request_data_pagelist( 23904017e29SAlex Elder struct ceph_osd_request *osd_req, 24004017e29SAlex Elder unsigned int which, struct ceph_pagelist *pagelist) 24104017e29SAlex Elder { 24204017e29SAlex Elder struct ceph_osd_data *osd_data; 24304017e29SAlex Elder 244863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, request_data); 24504017e29SAlex Elder ceph_osd_data_pagelist_init(osd_data, pagelist); 246bb873b53SIlya Dryomov osd_req->r_ops[which].cls.indata_len += pagelist->length; 247bb873b53SIlya Dryomov osd_req->r_ops[which].indata_len += pagelist->length; 24804017e29SAlex Elder } 24904017e29SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_request_data_pagelist); 25004017e29SAlex Elder 2516c57b554SAlex Elder void osd_req_op_cls_request_data_pages(struct ceph_osd_request *osd_req, 2526c57b554SAlex Elder unsigned int which, struct page **pages, u64 length, 2536c57b554SAlex Elder u32 alignment, bool pages_from_pool, bool own_pages) 2546c57b554SAlex Elder { 2556c57b554SAlex Elder struct ceph_osd_data *osd_data; 2566c57b554SAlex Elder 2576c57b554SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, request_data); 2586c57b554SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 2596c57b554SAlex Elder pages_from_pool, own_pages); 260bb873b53SIlya Dryomov osd_req->r_ops[which].cls.indata_len += length; 261bb873b53SIlya Dryomov osd_req->r_ops[which].indata_len += length; 2626c57b554SAlex Elder } 2636c57b554SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_request_data_pages); 2646c57b554SAlex Elder 265a4ce40a9SAlex Elder void osd_req_op_cls_response_data_pages(struct ceph_osd_request *osd_req, 266a4ce40a9SAlex Elder unsigned int which, struct page **pages, u64 length, 267a4ce40a9SAlex Elder u32 alignment, bool pages_from_pool, bool own_pages) 268a4ce40a9SAlex Elder { 269a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 270a4ce40a9SAlex Elder 271863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, response_data); 272a4ce40a9SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 273a4ce40a9SAlex Elder pages_from_pool, own_pages); 274a4ce40a9SAlex Elder } 275a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_response_data_pages); 276a4ce40a9SAlex Elder 27723c08a9cSAlex Elder static u64 ceph_osd_data_length(struct ceph_osd_data *osd_data) 27823c08a9cSAlex Elder { 27923c08a9cSAlex Elder switch (osd_data->type) { 28023c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_NONE: 28123c08a9cSAlex Elder return 0; 28223c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_PAGES: 28323c08a9cSAlex Elder return osd_data->length; 28423c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_PAGELIST: 28523c08a9cSAlex Elder return (u64)osd_data->pagelist->length; 28623c08a9cSAlex Elder #ifdef CONFIG_BLOCK 28723c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_BIO: 28823c08a9cSAlex Elder return (u64)osd_data->bio_length; 28923c08a9cSAlex Elder #endif /* CONFIG_BLOCK */ 29023c08a9cSAlex Elder default: 29123c08a9cSAlex Elder WARN(true, "unrecognized data type %d\n", (int)osd_data->type); 29223c08a9cSAlex Elder return 0; 29323c08a9cSAlex Elder } 29423c08a9cSAlex Elder } 29523c08a9cSAlex Elder 296c54d47bfSAlex Elder static void ceph_osd_data_release(struct ceph_osd_data *osd_data) 297c54d47bfSAlex Elder { 2985476492fSAlex Elder if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES && osd_data->own_pages) { 299c54d47bfSAlex Elder int num_pages; 300c54d47bfSAlex Elder 301c54d47bfSAlex Elder num_pages = calc_pages_for((u64)osd_data->alignment, 302c54d47bfSAlex Elder (u64)osd_data->length); 303c54d47bfSAlex Elder ceph_release_page_vector(osd_data->pages, num_pages); 304c54d47bfSAlex Elder } 3055476492fSAlex Elder ceph_osd_data_init(osd_data); 3065476492fSAlex Elder } 3075476492fSAlex Elder 3085476492fSAlex Elder static void osd_req_op_data_release(struct ceph_osd_request *osd_req, 3095476492fSAlex Elder unsigned int which) 3105476492fSAlex Elder { 3115476492fSAlex Elder struct ceph_osd_req_op *op; 3125476492fSAlex Elder 3135476492fSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 3145476492fSAlex Elder op = &osd_req->r_ops[which]; 3155476492fSAlex Elder 3165476492fSAlex Elder switch (op->op) { 3175476492fSAlex Elder case CEPH_OSD_OP_READ: 3185476492fSAlex Elder case CEPH_OSD_OP_WRITE: 319e30b7577SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 3205476492fSAlex Elder ceph_osd_data_release(&op->extent.osd_data); 3215476492fSAlex Elder break; 3225476492fSAlex Elder case CEPH_OSD_OP_CALL: 3235476492fSAlex Elder ceph_osd_data_release(&op->cls.request_info); 32404017e29SAlex Elder ceph_osd_data_release(&op->cls.request_data); 3255476492fSAlex Elder ceph_osd_data_release(&op->cls.response_data); 3265476492fSAlex Elder break; 327d74b50beSYan, Zheng case CEPH_OSD_OP_SETXATTR: 328d74b50beSYan, Zheng case CEPH_OSD_OP_CMPXATTR: 329d74b50beSYan, Zheng ceph_osd_data_release(&op->xattr.osd_data); 330d74b50beSYan, Zheng break; 33166ba609fSYan, Zheng case CEPH_OSD_OP_STAT: 33266ba609fSYan, Zheng ceph_osd_data_release(&op->raw_data_in); 33366ba609fSYan, Zheng break; 334922dab61SIlya Dryomov case CEPH_OSD_OP_NOTIFY_ACK: 335922dab61SIlya Dryomov ceph_osd_data_release(&op->notify_ack.request_data); 336922dab61SIlya Dryomov break; 33719079203SIlya Dryomov case CEPH_OSD_OP_NOTIFY: 33819079203SIlya Dryomov ceph_osd_data_release(&op->notify.request_data); 33919079203SIlya Dryomov ceph_osd_data_release(&op->notify.response_data); 34019079203SIlya Dryomov break; 341a4ed38d7SDouglas Fuller case CEPH_OSD_OP_LIST_WATCHERS: 342a4ed38d7SDouglas Fuller ceph_osd_data_release(&op->list_watchers.response_data); 343a4ed38d7SDouglas Fuller break; 3445476492fSAlex Elder default: 3455476492fSAlex Elder break; 3465476492fSAlex Elder } 347c54d47bfSAlex Elder } 348c54d47bfSAlex Elder 3493d14c5d2SYehuda Sadeh /* 35063244fa1SIlya Dryomov * Assumes @t is zero-initialized. 35163244fa1SIlya Dryomov */ 35263244fa1SIlya Dryomov static void target_init(struct ceph_osd_request_target *t) 35363244fa1SIlya Dryomov { 35463244fa1SIlya Dryomov ceph_oid_init(&t->base_oid); 35563244fa1SIlya Dryomov ceph_oloc_init(&t->base_oloc); 35663244fa1SIlya Dryomov ceph_oid_init(&t->target_oid); 35763244fa1SIlya Dryomov ceph_oloc_init(&t->target_oloc); 35863244fa1SIlya Dryomov 35963244fa1SIlya Dryomov ceph_osds_init(&t->acting); 36063244fa1SIlya Dryomov ceph_osds_init(&t->up); 36163244fa1SIlya Dryomov t->size = -1; 36263244fa1SIlya Dryomov t->min_size = -1; 36363244fa1SIlya Dryomov 36463244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 36563244fa1SIlya Dryomov } 36663244fa1SIlya Dryomov 367922dab61SIlya Dryomov static void target_copy(struct ceph_osd_request_target *dest, 368922dab61SIlya Dryomov const struct ceph_osd_request_target *src) 369922dab61SIlya Dryomov { 370922dab61SIlya Dryomov ceph_oid_copy(&dest->base_oid, &src->base_oid); 371922dab61SIlya Dryomov ceph_oloc_copy(&dest->base_oloc, &src->base_oloc); 372922dab61SIlya Dryomov ceph_oid_copy(&dest->target_oid, &src->target_oid); 373922dab61SIlya Dryomov ceph_oloc_copy(&dest->target_oloc, &src->target_oloc); 374922dab61SIlya Dryomov 375922dab61SIlya Dryomov dest->pgid = src->pgid; /* struct */ 376dc98ff72SIlya Dryomov dest->spgid = src->spgid; /* struct */ 377922dab61SIlya Dryomov dest->pg_num = src->pg_num; 378922dab61SIlya Dryomov dest->pg_num_mask = src->pg_num_mask; 379922dab61SIlya Dryomov ceph_osds_copy(&dest->acting, &src->acting); 380922dab61SIlya Dryomov ceph_osds_copy(&dest->up, &src->up); 381922dab61SIlya Dryomov dest->size = src->size; 382922dab61SIlya Dryomov dest->min_size = src->min_size; 383922dab61SIlya Dryomov dest->sort_bitwise = src->sort_bitwise; 384922dab61SIlya Dryomov 385922dab61SIlya Dryomov dest->flags = src->flags; 386922dab61SIlya Dryomov dest->paused = src->paused; 387922dab61SIlya Dryomov 388dc93e0e2SIlya Dryomov dest->last_force_resend = src->last_force_resend; 389dc93e0e2SIlya Dryomov 390922dab61SIlya Dryomov dest->osd = src->osd; 391922dab61SIlya Dryomov } 392922dab61SIlya Dryomov 39363244fa1SIlya Dryomov static void target_destroy(struct ceph_osd_request_target *t) 39463244fa1SIlya Dryomov { 39563244fa1SIlya Dryomov ceph_oid_destroy(&t->base_oid); 39630c156d9SYan, Zheng ceph_oloc_destroy(&t->base_oloc); 39763244fa1SIlya Dryomov ceph_oid_destroy(&t->target_oid); 39830c156d9SYan, Zheng ceph_oloc_destroy(&t->target_oloc); 39963244fa1SIlya Dryomov } 40063244fa1SIlya Dryomov 40163244fa1SIlya Dryomov /* 4023d14c5d2SYehuda Sadeh * requests 4033d14c5d2SYehuda Sadeh */ 4043540bfdbSIlya Dryomov static void request_release_checks(struct ceph_osd_request *req) 4053540bfdbSIlya Dryomov { 4063540bfdbSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&req->r_node)); 4074609245eSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&req->r_mc_node)); 4083540bfdbSIlya Dryomov WARN_ON(!list_empty(&req->r_unsafe_item)); 4093540bfdbSIlya Dryomov WARN_ON(req->r_osd); 4103540bfdbSIlya Dryomov } 4113540bfdbSIlya Dryomov 4129e94af20SIlya Dryomov static void ceph_osdc_release_request(struct kref *kref) 4133d14c5d2SYehuda Sadeh { 4149e94af20SIlya Dryomov struct ceph_osd_request *req = container_of(kref, 4159e94af20SIlya Dryomov struct ceph_osd_request, r_kref); 4165476492fSAlex Elder unsigned int which; 4173d14c5d2SYehuda Sadeh 4189e94af20SIlya Dryomov dout("%s %p (r_request %p r_reply %p)\n", __func__, req, 4199e94af20SIlya Dryomov req->r_request, req->r_reply); 4203540bfdbSIlya Dryomov request_release_checks(req); 4219e94af20SIlya Dryomov 4223d14c5d2SYehuda Sadeh if (req->r_request) 4233d14c5d2SYehuda Sadeh ceph_msg_put(req->r_request); 4245aea3dcdSIlya Dryomov if (req->r_reply) 425ab8cb34aSAlex Elder ceph_msg_put(req->r_reply); 4260fff87ecSAlex Elder 4275476492fSAlex Elder for (which = 0; which < req->r_num_ops; which++) 4285476492fSAlex Elder osd_req_op_data_release(req, which); 4290fff87ecSAlex Elder 430a66dd383SIlya Dryomov target_destroy(&req->r_t); 4313d14c5d2SYehuda Sadeh ceph_put_snap_context(req->r_snapc); 432d30291b9SIlya Dryomov 4333d14c5d2SYehuda Sadeh if (req->r_mempool) 4343d14c5d2SYehuda Sadeh mempool_free(req, req->r_osdc->req_mempool); 4353f1af42aSIlya Dryomov else if (req->r_num_ops <= CEPH_OSD_SLAB_OPS) 4365522ae0bSAlex Elder kmem_cache_free(ceph_osd_request_cache, req); 4373f1af42aSIlya Dryomov else 4383f1af42aSIlya Dryomov kfree(req); 4393d14c5d2SYehuda Sadeh } 4409e94af20SIlya Dryomov 4419e94af20SIlya Dryomov void ceph_osdc_get_request(struct ceph_osd_request *req) 4429e94af20SIlya Dryomov { 4439e94af20SIlya Dryomov dout("%s %p (was %d)\n", __func__, req, 4442c935bc5SPeter Zijlstra kref_read(&req->r_kref)); 4459e94af20SIlya Dryomov kref_get(&req->r_kref); 4469e94af20SIlya Dryomov } 4479e94af20SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_get_request); 4489e94af20SIlya Dryomov 4499e94af20SIlya Dryomov void ceph_osdc_put_request(struct ceph_osd_request *req) 4509e94af20SIlya Dryomov { 4513ed97d63SIlya Dryomov if (req) { 4529e94af20SIlya Dryomov dout("%s %p (was %d)\n", __func__, req, 4532c935bc5SPeter Zijlstra kref_read(&req->r_kref)); 4549e94af20SIlya Dryomov kref_put(&req->r_kref, ceph_osdc_release_request); 4559e94af20SIlya Dryomov } 4563ed97d63SIlya Dryomov } 4579e94af20SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_put_request); 4583d14c5d2SYehuda Sadeh 4593540bfdbSIlya Dryomov static void request_init(struct ceph_osd_request *req) 4603540bfdbSIlya Dryomov { 4613540bfdbSIlya Dryomov /* req only, each op is zeroed in _osd_req_op_init() */ 4623540bfdbSIlya Dryomov memset(req, 0, sizeof(*req)); 4633540bfdbSIlya Dryomov 4643540bfdbSIlya Dryomov kref_init(&req->r_kref); 4653540bfdbSIlya Dryomov init_completion(&req->r_completion); 4663540bfdbSIlya Dryomov RB_CLEAR_NODE(&req->r_node); 4674609245eSIlya Dryomov RB_CLEAR_NODE(&req->r_mc_node); 4683540bfdbSIlya Dryomov INIT_LIST_HEAD(&req->r_unsafe_item); 4693540bfdbSIlya Dryomov 4703540bfdbSIlya Dryomov target_init(&req->r_t); 4713540bfdbSIlya Dryomov } 4723540bfdbSIlya Dryomov 473922dab61SIlya Dryomov /* 474922dab61SIlya Dryomov * This is ugly, but it allows us to reuse linger registration and ping 475922dab61SIlya Dryomov * requests, keeping the structure of the code around send_linger{_ping}() 476922dab61SIlya Dryomov * reasonable. Setting up a min_nr=2 mempool for each linger request 477922dab61SIlya Dryomov * and dealing with copying ops (this blasts req only, watch op remains 478922dab61SIlya Dryomov * intact) isn't any better. 479922dab61SIlya Dryomov */ 480922dab61SIlya Dryomov static void request_reinit(struct ceph_osd_request *req) 481922dab61SIlya Dryomov { 482922dab61SIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 483922dab61SIlya Dryomov bool mempool = req->r_mempool; 484922dab61SIlya Dryomov unsigned int num_ops = req->r_num_ops; 485922dab61SIlya Dryomov u64 snapid = req->r_snapid; 486922dab61SIlya Dryomov struct ceph_snap_context *snapc = req->r_snapc; 487922dab61SIlya Dryomov bool linger = req->r_linger; 488922dab61SIlya Dryomov struct ceph_msg *request_msg = req->r_request; 489922dab61SIlya Dryomov struct ceph_msg *reply_msg = req->r_reply; 490922dab61SIlya Dryomov 491922dab61SIlya Dryomov dout("%s req %p\n", __func__, req); 4922c935bc5SPeter Zijlstra WARN_ON(kref_read(&req->r_kref) != 1); 493922dab61SIlya Dryomov request_release_checks(req); 494922dab61SIlya Dryomov 4952c935bc5SPeter Zijlstra WARN_ON(kref_read(&request_msg->kref) != 1); 4962c935bc5SPeter Zijlstra WARN_ON(kref_read(&reply_msg->kref) != 1); 497922dab61SIlya Dryomov target_destroy(&req->r_t); 498922dab61SIlya Dryomov 499922dab61SIlya Dryomov request_init(req); 500922dab61SIlya Dryomov req->r_osdc = osdc; 501922dab61SIlya Dryomov req->r_mempool = mempool; 502922dab61SIlya Dryomov req->r_num_ops = num_ops; 503922dab61SIlya Dryomov req->r_snapid = snapid; 504922dab61SIlya Dryomov req->r_snapc = snapc; 505922dab61SIlya Dryomov req->r_linger = linger; 506922dab61SIlya Dryomov req->r_request = request_msg; 507922dab61SIlya Dryomov req->r_reply = reply_msg; 508922dab61SIlya Dryomov } 509922dab61SIlya Dryomov 5103d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, 5113d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 5121b83bef2SSage Weil unsigned int num_ops, 5133d14c5d2SYehuda Sadeh bool use_mempool, 51454a54007SAlex Elder gfp_t gfp_flags) 5153d14c5d2SYehuda Sadeh { 5163d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 5173d14c5d2SYehuda Sadeh 5183d14c5d2SYehuda Sadeh if (use_mempool) { 5193f1af42aSIlya Dryomov BUG_ON(num_ops > CEPH_OSD_SLAB_OPS); 5203d14c5d2SYehuda Sadeh req = mempool_alloc(osdc->req_mempool, gfp_flags); 5213f1af42aSIlya Dryomov } else if (num_ops <= CEPH_OSD_SLAB_OPS) { 5223f1af42aSIlya Dryomov req = kmem_cache_alloc(ceph_osd_request_cache, gfp_flags); 5233d14c5d2SYehuda Sadeh } else { 5243f1af42aSIlya Dryomov BUG_ON(num_ops > CEPH_OSD_MAX_OPS); 5253f1af42aSIlya Dryomov req = kmalloc(sizeof(*req) + num_ops * sizeof(req->r_ops[0]), 5263f1af42aSIlya Dryomov gfp_flags); 5273d14c5d2SYehuda Sadeh } 5283f1af42aSIlya Dryomov if (unlikely(!req)) 5293d14c5d2SYehuda Sadeh return NULL; 5303d14c5d2SYehuda Sadeh 5313540bfdbSIlya Dryomov request_init(req); 5323d14c5d2SYehuda Sadeh req->r_osdc = osdc; 5333d14c5d2SYehuda Sadeh req->r_mempool = use_mempool; 53479528734SAlex Elder req->r_num_ops = num_ops; 53584127282SIlya Dryomov req->r_snapid = CEPH_NOSNAP; 53684127282SIlya Dryomov req->r_snapc = ceph_get_snap_context(snapc); 5373d14c5d2SYehuda Sadeh 53813d1ad16SIlya Dryomov dout("%s req %p\n", __func__, req); 53913d1ad16SIlya Dryomov return req; 5403f1af42aSIlya Dryomov } 54113d1ad16SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_alloc_request); 5423f1af42aSIlya Dryomov 5432e59ffd1SIlya Dryomov static int ceph_oloc_encoding_size(const struct ceph_object_locator *oloc) 54430c156d9SYan, Zheng { 54530c156d9SYan, Zheng return 8 + 4 + 4 + 4 + (oloc->pool_ns ? oloc->pool_ns->len : 0); 54630c156d9SYan, Zheng } 54730c156d9SYan, Zheng 54813d1ad16SIlya Dryomov int ceph_osdc_alloc_messages(struct ceph_osd_request *req, gfp_t gfp) 54913d1ad16SIlya Dryomov { 55013d1ad16SIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 55113d1ad16SIlya Dryomov struct ceph_msg *msg; 55213d1ad16SIlya Dryomov int msg_size; 5533d14c5d2SYehuda Sadeh 554d30291b9SIlya Dryomov WARN_ON(ceph_oid_empty(&req->r_base_oid)); 55530c156d9SYan, Zheng WARN_ON(ceph_oloc_empty(&req->r_base_oloc)); 556d30291b9SIlya Dryomov 55713d1ad16SIlya Dryomov /* create request message */ 558ae458f5aSIlya Dryomov msg_size = 4 + 4 + 4; /* client_inc, osdmap_epoch, flags */ 559ae458f5aSIlya Dryomov msg_size += 4 + 4 + 4 + 8; /* mtime, reassert_version */ 56030c156d9SYan, Zheng msg_size += CEPH_ENCODING_START_BLK_LEN + 56130c156d9SYan, Zheng ceph_oloc_encoding_size(&req->r_base_oloc); /* oloc */ 562ae458f5aSIlya Dryomov msg_size += 1 + 8 + 4 + 4; /* pgid */ 56313d1ad16SIlya Dryomov msg_size += 4 + req->r_base_oid.name_len; /* oid */ 56413d1ad16SIlya Dryomov msg_size += 2 + req->r_num_ops * sizeof(struct ceph_osd_op); 565ae458f5aSIlya Dryomov msg_size += 8; /* snapid */ 566ae458f5aSIlya Dryomov msg_size += 8; /* snap_seq */ 56713d1ad16SIlya Dryomov msg_size += 4 + 8 * (req->r_snapc ? req->r_snapc->num_snaps : 0); 568ae458f5aSIlya Dryomov msg_size += 4; /* retry_attempt */ 569ae458f5aSIlya Dryomov 57013d1ad16SIlya Dryomov if (req->r_mempool) 5713d14c5d2SYehuda Sadeh msg = ceph_msgpool_get(&osdc->msgpool_op, 0); 5723d14c5d2SYehuda Sadeh else 57313d1ad16SIlya Dryomov msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size, gfp, true); 57413d1ad16SIlya Dryomov if (!msg) 57513d1ad16SIlya Dryomov return -ENOMEM; 5763d14c5d2SYehuda Sadeh 5773d14c5d2SYehuda Sadeh memset(msg->front.iov_base, 0, msg->front.iov_len); 5783d14c5d2SYehuda Sadeh req->r_request = msg; 5793d14c5d2SYehuda Sadeh 58013d1ad16SIlya Dryomov /* create reply message */ 58113d1ad16SIlya Dryomov msg_size = OSD_OPREPLY_FRONT_LEN; 582711da55dSIlya Dryomov msg_size += req->r_base_oid.name_len; 583711da55dSIlya Dryomov msg_size += req->r_num_ops * sizeof(struct ceph_osd_op); 58413d1ad16SIlya Dryomov 58513d1ad16SIlya Dryomov if (req->r_mempool) 58613d1ad16SIlya Dryomov msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0); 58713d1ad16SIlya Dryomov else 58813d1ad16SIlya Dryomov msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, msg_size, gfp, true); 58913d1ad16SIlya Dryomov if (!msg) 59013d1ad16SIlya Dryomov return -ENOMEM; 59113d1ad16SIlya Dryomov 59213d1ad16SIlya Dryomov req->r_reply = msg; 59313d1ad16SIlya Dryomov 59413d1ad16SIlya Dryomov return 0; 59513d1ad16SIlya Dryomov } 59613d1ad16SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_alloc_messages); 5973d14c5d2SYehuda Sadeh 598a8dd0a37SAlex Elder static bool osd_req_opcode_valid(u16 opcode) 599a8dd0a37SAlex Elder { 600a8dd0a37SAlex Elder switch (opcode) { 60170b5bfa3SIlya Dryomov #define GENERATE_CASE(op, opcode, str) case CEPH_OSD_OP_##op: return true; 60270b5bfa3SIlya Dryomov __CEPH_FORALL_OSD_OPS(GENERATE_CASE) 60370b5bfa3SIlya Dryomov #undef GENERATE_CASE 604a8dd0a37SAlex Elder default: 605a8dd0a37SAlex Elder return false; 606a8dd0a37SAlex Elder } 607a8dd0a37SAlex Elder } 608a8dd0a37SAlex Elder 60933803f33SAlex Elder /* 61033803f33SAlex Elder * This is an osd op init function for opcodes that have no data or 61133803f33SAlex Elder * other information associated with them. It also serves as a 61233803f33SAlex Elder * common init routine for all the other init functions, below. 61333803f33SAlex Elder */ 614c99d2d4aSAlex Elder static struct ceph_osd_req_op * 61549719778SAlex Elder _osd_req_op_init(struct ceph_osd_request *osd_req, unsigned int which, 616144cba14SYan, Zheng u16 opcode, u32 flags) 61733803f33SAlex Elder { 618c99d2d4aSAlex Elder struct ceph_osd_req_op *op; 619c99d2d4aSAlex Elder 620c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 62133803f33SAlex Elder BUG_ON(!osd_req_opcode_valid(opcode)); 62233803f33SAlex Elder 623c99d2d4aSAlex Elder op = &osd_req->r_ops[which]; 62433803f33SAlex Elder memset(op, 0, sizeof (*op)); 62533803f33SAlex Elder op->op = opcode; 626144cba14SYan, Zheng op->flags = flags; 627c99d2d4aSAlex Elder 628c99d2d4aSAlex Elder return op; 62933803f33SAlex Elder } 63033803f33SAlex Elder 63149719778SAlex Elder void osd_req_op_init(struct ceph_osd_request *osd_req, 632144cba14SYan, Zheng unsigned int which, u16 opcode, u32 flags) 63349719778SAlex Elder { 634144cba14SYan, Zheng (void)_osd_req_op_init(osd_req, which, opcode, flags); 63549719778SAlex Elder } 63649719778SAlex Elder EXPORT_SYMBOL(osd_req_op_init); 63749719778SAlex Elder 638c99d2d4aSAlex Elder void osd_req_op_extent_init(struct ceph_osd_request *osd_req, 639c99d2d4aSAlex Elder unsigned int which, u16 opcode, 64033803f33SAlex Elder u64 offset, u64 length, 64133803f33SAlex Elder u64 truncate_size, u32 truncate_seq) 64233803f33SAlex Elder { 643144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 644144cba14SYan, Zheng opcode, 0); 64533803f33SAlex Elder size_t payload_len = 0; 64633803f33SAlex Elder 647ad7a60deSLi Wang BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && 648e30b7577SIlya Dryomov opcode != CEPH_OSD_OP_WRITEFULL && opcode != CEPH_OSD_OP_ZERO && 649e30b7577SIlya Dryomov opcode != CEPH_OSD_OP_TRUNCATE); 65033803f33SAlex Elder 65133803f33SAlex Elder op->extent.offset = offset; 65233803f33SAlex Elder op->extent.length = length; 65333803f33SAlex Elder op->extent.truncate_size = truncate_size; 65433803f33SAlex Elder op->extent.truncate_seq = truncate_seq; 655e30b7577SIlya Dryomov if (opcode == CEPH_OSD_OP_WRITE || opcode == CEPH_OSD_OP_WRITEFULL) 65633803f33SAlex Elder payload_len += length; 65733803f33SAlex Elder 658de2aa102SIlya Dryomov op->indata_len = payload_len; 65933803f33SAlex Elder } 66033803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_init); 66133803f33SAlex Elder 662c99d2d4aSAlex Elder void osd_req_op_extent_update(struct ceph_osd_request *osd_req, 663c99d2d4aSAlex Elder unsigned int which, u64 length) 664e5975c7cSAlex Elder { 665c99d2d4aSAlex Elder struct ceph_osd_req_op *op; 666c99d2d4aSAlex Elder u64 previous; 667c99d2d4aSAlex Elder 668c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 669c99d2d4aSAlex Elder op = &osd_req->r_ops[which]; 670c99d2d4aSAlex Elder previous = op->extent.length; 671e5975c7cSAlex Elder 672e5975c7cSAlex Elder if (length == previous) 673e5975c7cSAlex Elder return; /* Nothing to do */ 674e5975c7cSAlex Elder BUG_ON(length > previous); 675e5975c7cSAlex Elder 676e5975c7cSAlex Elder op->extent.length = length; 677d641df81SYan, Zheng if (op->op == CEPH_OSD_OP_WRITE || op->op == CEPH_OSD_OP_WRITEFULL) 678de2aa102SIlya Dryomov op->indata_len -= previous - length; 679e5975c7cSAlex Elder } 680e5975c7cSAlex Elder EXPORT_SYMBOL(osd_req_op_extent_update); 681e5975c7cSAlex Elder 6822c63f49aSYan, Zheng void osd_req_op_extent_dup_last(struct ceph_osd_request *osd_req, 6832c63f49aSYan, Zheng unsigned int which, u64 offset_inc) 6842c63f49aSYan, Zheng { 6852c63f49aSYan, Zheng struct ceph_osd_req_op *op, *prev_op; 6862c63f49aSYan, Zheng 6872c63f49aSYan, Zheng BUG_ON(which + 1 >= osd_req->r_num_ops); 6882c63f49aSYan, Zheng 6892c63f49aSYan, Zheng prev_op = &osd_req->r_ops[which]; 6902c63f49aSYan, Zheng op = _osd_req_op_init(osd_req, which + 1, prev_op->op, prev_op->flags); 6912c63f49aSYan, Zheng /* dup previous one */ 6922c63f49aSYan, Zheng op->indata_len = prev_op->indata_len; 6932c63f49aSYan, Zheng op->outdata_len = prev_op->outdata_len; 6942c63f49aSYan, Zheng op->extent = prev_op->extent; 6952c63f49aSYan, Zheng /* adjust offset */ 6962c63f49aSYan, Zheng op->extent.offset += offset_inc; 6972c63f49aSYan, Zheng op->extent.length -= offset_inc; 6982c63f49aSYan, Zheng 6992c63f49aSYan, Zheng if (op->op == CEPH_OSD_OP_WRITE || op->op == CEPH_OSD_OP_WRITEFULL) 7002c63f49aSYan, Zheng op->indata_len -= offset_inc; 7012c63f49aSYan, Zheng } 7022c63f49aSYan, Zheng EXPORT_SYMBOL(osd_req_op_extent_dup_last); 7032c63f49aSYan, Zheng 704c99d2d4aSAlex Elder void osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which, 70504017e29SAlex Elder u16 opcode, const char *class, const char *method) 70633803f33SAlex Elder { 707144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 708144cba14SYan, Zheng opcode, 0); 7095f562df5SAlex Elder struct ceph_pagelist *pagelist; 71033803f33SAlex Elder size_t payload_len = 0; 71133803f33SAlex Elder size_t size; 71233803f33SAlex Elder 71333803f33SAlex Elder BUG_ON(opcode != CEPH_OSD_OP_CALL); 71433803f33SAlex Elder 7155f562df5SAlex Elder pagelist = kmalloc(sizeof (*pagelist), GFP_NOFS); 7165f562df5SAlex Elder BUG_ON(!pagelist); 7175f562df5SAlex Elder ceph_pagelist_init(pagelist); 7185f562df5SAlex Elder 71933803f33SAlex Elder op->cls.class_name = class; 72033803f33SAlex Elder size = strlen(class); 72133803f33SAlex Elder BUG_ON(size > (size_t) U8_MAX); 72233803f33SAlex Elder op->cls.class_len = size; 7235f562df5SAlex Elder ceph_pagelist_append(pagelist, class, size); 72433803f33SAlex Elder payload_len += size; 72533803f33SAlex Elder 72633803f33SAlex Elder op->cls.method_name = method; 72733803f33SAlex Elder size = strlen(method); 72833803f33SAlex Elder BUG_ON(size > (size_t) U8_MAX); 72933803f33SAlex Elder op->cls.method_len = size; 7305f562df5SAlex Elder ceph_pagelist_append(pagelist, method, size); 73133803f33SAlex Elder payload_len += size; 73233803f33SAlex Elder 733a4ce40a9SAlex Elder osd_req_op_cls_request_info_pagelist(osd_req, which, pagelist); 7345f562df5SAlex Elder 735de2aa102SIlya Dryomov op->indata_len = payload_len; 73633803f33SAlex Elder } 73733803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_init); 7388c042b0dSAlex Elder 739d74b50beSYan, Zheng int osd_req_op_xattr_init(struct ceph_osd_request *osd_req, unsigned int which, 740d74b50beSYan, Zheng u16 opcode, const char *name, const void *value, 741d74b50beSYan, Zheng size_t size, u8 cmp_op, u8 cmp_mode) 742d74b50beSYan, Zheng { 743144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 744144cba14SYan, Zheng opcode, 0); 745d74b50beSYan, Zheng struct ceph_pagelist *pagelist; 746d74b50beSYan, Zheng size_t payload_len; 747d74b50beSYan, Zheng 748d74b50beSYan, Zheng BUG_ON(opcode != CEPH_OSD_OP_SETXATTR && opcode != CEPH_OSD_OP_CMPXATTR); 749d74b50beSYan, Zheng 750d74b50beSYan, Zheng pagelist = kmalloc(sizeof(*pagelist), GFP_NOFS); 751d74b50beSYan, Zheng if (!pagelist) 752d74b50beSYan, Zheng return -ENOMEM; 753d74b50beSYan, Zheng 754d74b50beSYan, Zheng ceph_pagelist_init(pagelist); 755d74b50beSYan, Zheng 756d74b50beSYan, Zheng payload_len = strlen(name); 757d74b50beSYan, Zheng op->xattr.name_len = payload_len; 758d74b50beSYan, Zheng ceph_pagelist_append(pagelist, name, payload_len); 759d74b50beSYan, Zheng 760d74b50beSYan, Zheng op->xattr.value_len = size; 761d74b50beSYan, Zheng ceph_pagelist_append(pagelist, value, size); 762d74b50beSYan, Zheng payload_len += size; 763d74b50beSYan, Zheng 764d74b50beSYan, Zheng op->xattr.cmp_op = cmp_op; 765d74b50beSYan, Zheng op->xattr.cmp_mode = cmp_mode; 766d74b50beSYan, Zheng 767d74b50beSYan, Zheng ceph_osd_data_pagelist_init(&op->xattr.osd_data, pagelist); 768de2aa102SIlya Dryomov op->indata_len = payload_len; 769d74b50beSYan, Zheng return 0; 770d74b50beSYan, Zheng } 771d74b50beSYan, Zheng EXPORT_SYMBOL(osd_req_op_xattr_init); 772d74b50beSYan, Zheng 773922dab61SIlya Dryomov /* 774922dab61SIlya Dryomov * @watch_opcode: CEPH_OSD_WATCH_OP_* 775922dab61SIlya Dryomov */ 776922dab61SIlya Dryomov static void osd_req_op_watch_init(struct ceph_osd_request *req, int which, 777922dab61SIlya Dryomov u64 cookie, u8 watch_opcode) 77833803f33SAlex Elder { 779922dab61SIlya Dryomov struct ceph_osd_req_op *op; 78033803f33SAlex Elder 781922dab61SIlya Dryomov op = _osd_req_op_init(req, which, CEPH_OSD_OP_WATCH, 0); 78233803f33SAlex Elder op->watch.cookie = cookie; 783922dab61SIlya Dryomov op->watch.op = watch_opcode; 784922dab61SIlya Dryomov op->watch.gen = 0; 78533803f33SAlex Elder } 78633803f33SAlex Elder 787c647b8a8SIlya Dryomov void osd_req_op_alloc_hint_init(struct ceph_osd_request *osd_req, 788c647b8a8SIlya Dryomov unsigned int which, 789c647b8a8SIlya Dryomov u64 expected_object_size, 790c647b8a8SIlya Dryomov u64 expected_write_size) 791c647b8a8SIlya Dryomov { 792c647b8a8SIlya Dryomov struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 793144cba14SYan, Zheng CEPH_OSD_OP_SETALLOCHINT, 794144cba14SYan, Zheng 0); 795c647b8a8SIlya Dryomov 796c647b8a8SIlya Dryomov op->alloc_hint.expected_object_size = expected_object_size; 797c647b8a8SIlya Dryomov op->alloc_hint.expected_write_size = expected_write_size; 798c647b8a8SIlya Dryomov 799c647b8a8SIlya Dryomov /* 800c647b8a8SIlya Dryomov * CEPH_OSD_OP_SETALLOCHINT op is advisory and therefore deemed 801c647b8a8SIlya Dryomov * not worth a feature bit. Set FAILOK per-op flag to make 802c647b8a8SIlya Dryomov * sure older osds don't trip over an unsupported opcode. 803c647b8a8SIlya Dryomov */ 804c647b8a8SIlya Dryomov op->flags |= CEPH_OSD_OP_FLAG_FAILOK; 805c647b8a8SIlya Dryomov } 806c647b8a8SIlya Dryomov EXPORT_SYMBOL(osd_req_op_alloc_hint_init); 807c647b8a8SIlya Dryomov 80890af3602SAlex Elder static void ceph_osdc_msg_data_add(struct ceph_msg *msg, 809ec9123c5SAlex Elder struct ceph_osd_data *osd_data) 810ec9123c5SAlex Elder { 811ec9123c5SAlex Elder u64 length = ceph_osd_data_length(osd_data); 812ec9123c5SAlex Elder 813ec9123c5SAlex Elder if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { 814ec9123c5SAlex Elder BUG_ON(length > (u64) SIZE_MAX); 815ec9123c5SAlex Elder if (length) 81690af3602SAlex Elder ceph_msg_data_add_pages(msg, osd_data->pages, 817ec9123c5SAlex Elder length, osd_data->alignment); 818ec9123c5SAlex Elder } else if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGELIST) { 819ec9123c5SAlex Elder BUG_ON(!length); 82090af3602SAlex Elder ceph_msg_data_add_pagelist(msg, osd_data->pagelist); 821ec9123c5SAlex Elder #ifdef CONFIG_BLOCK 822ec9123c5SAlex Elder } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) { 82390af3602SAlex Elder ceph_msg_data_add_bio(msg, osd_data->bio, length); 824ec9123c5SAlex Elder #endif 825ec9123c5SAlex Elder } else { 826ec9123c5SAlex Elder BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_NONE); 827ec9123c5SAlex Elder } 828ec9123c5SAlex Elder } 829ec9123c5SAlex Elder 830bb873b53SIlya Dryomov static u32 osd_req_encode_op(struct ceph_osd_op *dst, 831bb873b53SIlya Dryomov const struct ceph_osd_req_op *src) 8323d14c5d2SYehuda Sadeh { 833a8dd0a37SAlex Elder if (WARN_ON(!osd_req_opcode_valid(src->op))) { 834a8dd0a37SAlex Elder pr_err("unrecognized osd opcode %d\n", src->op); 835a8dd0a37SAlex Elder 836a8dd0a37SAlex Elder return 0; 837a8dd0a37SAlex Elder } 8383d14c5d2SYehuda Sadeh 839065a68f9SAlex Elder switch (src->op) { 840fbfab539SAlex Elder case CEPH_OSD_OP_STAT: 841fbfab539SAlex Elder break; 8423d14c5d2SYehuda Sadeh case CEPH_OSD_OP_READ: 8433d14c5d2SYehuda Sadeh case CEPH_OSD_OP_WRITE: 844e30b7577SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 845ad7a60deSLi Wang case CEPH_OSD_OP_ZERO: 846ad7a60deSLi Wang case CEPH_OSD_OP_TRUNCATE: 847175face2SAlex Elder dst->extent.offset = cpu_to_le64(src->extent.offset); 848175face2SAlex Elder dst->extent.length = cpu_to_le64(src->extent.length); 8493d14c5d2SYehuda Sadeh dst->extent.truncate_size = 8503d14c5d2SYehuda Sadeh cpu_to_le64(src->extent.truncate_size); 8513d14c5d2SYehuda Sadeh dst->extent.truncate_seq = 8523d14c5d2SYehuda Sadeh cpu_to_le32(src->extent.truncate_seq); 8533d14c5d2SYehuda Sadeh break; 8543d14c5d2SYehuda Sadeh case CEPH_OSD_OP_CALL: 8553d14c5d2SYehuda Sadeh dst->cls.class_len = src->cls.class_len; 8563d14c5d2SYehuda Sadeh dst->cls.method_len = src->cls.method_len; 857bb873b53SIlya Dryomov dst->cls.indata_len = cpu_to_le32(src->cls.indata_len); 8583d14c5d2SYehuda Sadeh break; 8593d14c5d2SYehuda Sadeh case CEPH_OSD_OP_STARTSYNC: 8603d14c5d2SYehuda Sadeh break; 861a40c4f10SYehuda Sadeh case CEPH_OSD_OP_WATCH: 862a40c4f10SYehuda Sadeh dst->watch.cookie = cpu_to_le64(src->watch.cookie); 863922dab61SIlya Dryomov dst->watch.ver = cpu_to_le64(0); 864922dab61SIlya Dryomov dst->watch.op = src->watch.op; 865922dab61SIlya Dryomov dst->watch.gen = cpu_to_le32(src->watch.gen); 866922dab61SIlya Dryomov break; 867922dab61SIlya Dryomov case CEPH_OSD_OP_NOTIFY_ACK: 868a40c4f10SYehuda Sadeh break; 86919079203SIlya Dryomov case CEPH_OSD_OP_NOTIFY: 87019079203SIlya Dryomov dst->notify.cookie = cpu_to_le64(src->notify.cookie); 87119079203SIlya Dryomov break; 872a4ed38d7SDouglas Fuller case CEPH_OSD_OP_LIST_WATCHERS: 873a4ed38d7SDouglas Fuller break; 874c647b8a8SIlya Dryomov case CEPH_OSD_OP_SETALLOCHINT: 875c647b8a8SIlya Dryomov dst->alloc_hint.expected_object_size = 876c647b8a8SIlya Dryomov cpu_to_le64(src->alloc_hint.expected_object_size); 877c647b8a8SIlya Dryomov dst->alloc_hint.expected_write_size = 878c647b8a8SIlya Dryomov cpu_to_le64(src->alloc_hint.expected_write_size); 879c647b8a8SIlya Dryomov break; 880d74b50beSYan, Zheng case CEPH_OSD_OP_SETXATTR: 881d74b50beSYan, Zheng case CEPH_OSD_OP_CMPXATTR: 882d74b50beSYan, Zheng dst->xattr.name_len = cpu_to_le32(src->xattr.name_len); 883d74b50beSYan, Zheng dst->xattr.value_len = cpu_to_le32(src->xattr.value_len); 884d74b50beSYan, Zheng dst->xattr.cmp_op = src->xattr.cmp_op; 885d74b50beSYan, Zheng dst->xattr.cmp_mode = src->xattr.cmp_mode; 886d74b50beSYan, Zheng break; 887864e9197SYan, Zheng case CEPH_OSD_OP_CREATE: 888864e9197SYan, Zheng case CEPH_OSD_OP_DELETE: 889864e9197SYan, Zheng break; 8903d14c5d2SYehuda Sadeh default: 8914c46459cSAlex Elder pr_err("unsupported osd opcode %s\n", 8928f63ca2dSAlex Elder ceph_osd_op_name(src->op)); 8934c46459cSAlex Elder WARN_ON(1); 894a8dd0a37SAlex Elder 895a8dd0a37SAlex Elder return 0; 8963d14c5d2SYehuda Sadeh } 8977b25bf5fSIlya Dryomov 898a8dd0a37SAlex Elder dst->op = cpu_to_le16(src->op); 8997b25bf5fSIlya Dryomov dst->flags = cpu_to_le32(src->flags); 900de2aa102SIlya Dryomov dst->payload_len = cpu_to_le32(src->indata_len); 901175face2SAlex Elder 902bb873b53SIlya Dryomov return src->indata_len; 9033d14c5d2SYehuda Sadeh } 9043d14c5d2SYehuda Sadeh 9053d14c5d2SYehuda Sadeh /* 9063d14c5d2SYehuda Sadeh * build new request AND message, calculate layout, and adjust file 9073d14c5d2SYehuda Sadeh * extent as needed. 9083d14c5d2SYehuda Sadeh * 9093d14c5d2SYehuda Sadeh * if the file was recently truncated, we include information about its 9103d14c5d2SYehuda Sadeh * old and new size so that the object can be updated appropriately. (we 9113d14c5d2SYehuda Sadeh * avoid synchronously deleting truncated objects because it's slow.) 9123d14c5d2SYehuda Sadeh * 9133d14c5d2SYehuda Sadeh * if @do_sync, include a 'startsync' command so that the osd will flush 9143d14c5d2SYehuda Sadeh * data quickly. 9153d14c5d2SYehuda Sadeh */ 9163d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, 9173d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 9183d14c5d2SYehuda Sadeh struct ceph_vino vino, 919715e4cd4SYan, Zheng u64 off, u64 *plen, 920715e4cd4SYan, Zheng unsigned int which, int num_ops, 9213d14c5d2SYehuda Sadeh int opcode, int flags, 9223d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 9233d14c5d2SYehuda Sadeh u32 truncate_seq, 9243d14c5d2SYehuda Sadeh u64 truncate_size, 925153e5167SAlex Elder bool use_mempool) 9263d14c5d2SYehuda Sadeh { 9273d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 92875d1c941SAlex Elder u64 objnum = 0; 92975d1c941SAlex Elder u64 objoff = 0; 93075d1c941SAlex Elder u64 objlen = 0; 9316816282dSSage Weil int r; 9323d14c5d2SYehuda Sadeh 933ad7a60deSLi Wang BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && 934864e9197SYan, Zheng opcode != CEPH_OSD_OP_ZERO && opcode != CEPH_OSD_OP_TRUNCATE && 935864e9197SYan, Zheng opcode != CEPH_OSD_OP_CREATE && opcode != CEPH_OSD_OP_DELETE); 9363d14c5d2SYehuda Sadeh 937acead002SAlex Elder req = ceph_osdc_alloc_request(osdc, snapc, num_ops, use_mempool, 938ae7ca4a3SAlex Elder GFP_NOFS); 93913d1ad16SIlya Dryomov if (!req) { 94013d1ad16SIlya Dryomov r = -ENOMEM; 94113d1ad16SIlya Dryomov goto fail; 94213d1ad16SIlya Dryomov } 94379528734SAlex Elder 9443d14c5d2SYehuda Sadeh /* calculate max write size */ 945a19dadfbSAlex Elder r = calc_layout(layout, off, plen, &objnum, &objoff, &objlen); 94613d1ad16SIlya Dryomov if (r) 94713d1ad16SIlya Dryomov goto fail; 948a19dadfbSAlex Elder 949864e9197SYan, Zheng if (opcode == CEPH_OSD_OP_CREATE || opcode == CEPH_OSD_OP_DELETE) { 950144cba14SYan, Zheng osd_req_op_init(req, which, opcode, 0); 951864e9197SYan, Zheng } else { 9527627151eSYan, Zheng u32 object_size = layout->object_size; 953864e9197SYan, Zheng u32 object_base = off - objoff; 954ccca4e37SYan, Zheng if (!(truncate_seq == 1 && truncate_size == -1ULL)) { 955d18d1e28SAlex Elder if (truncate_size <= object_base) { 956d18d1e28SAlex Elder truncate_size = 0; 957d18d1e28SAlex Elder } else { 958d18d1e28SAlex Elder truncate_size -= object_base; 959d18d1e28SAlex Elder if (truncate_size > object_size) 960d18d1e28SAlex Elder truncate_size = object_size; 961d18d1e28SAlex Elder } 962ccca4e37SYan, Zheng } 963715e4cd4SYan, Zheng osd_req_op_extent_init(req, which, opcode, objoff, objlen, 964b0270324SAlex Elder truncate_size, truncate_seq); 965864e9197SYan, Zheng } 966d18d1e28SAlex Elder 967a1f4020aSJeff Layton req->r_abort_on_full = true; 968bb873b53SIlya Dryomov req->r_flags = flags; 9697627151eSYan, Zheng req->r_base_oloc.pool = layout->pool_id; 97030c156d9SYan, Zheng req->r_base_oloc.pool_ns = ceph_try_get_string(layout->pool_ns); 971d30291b9SIlya Dryomov ceph_oid_printf(&req->r_base_oid, "%llx.%08llx", vino.ino, objnum); 972dbe0fc41SAlex Elder 973bb873b53SIlya Dryomov req->r_snapid = vino.snap; 974bb873b53SIlya Dryomov if (flags & CEPH_OSD_FLAG_WRITE) 975bb873b53SIlya Dryomov req->r_data_offset = off; 976bb873b53SIlya Dryomov 97713d1ad16SIlya Dryomov r = ceph_osdc_alloc_messages(req, GFP_NOFS); 97813d1ad16SIlya Dryomov if (r) 97913d1ad16SIlya Dryomov goto fail; 98013d1ad16SIlya Dryomov 9813d14c5d2SYehuda Sadeh return req; 98213d1ad16SIlya Dryomov 98313d1ad16SIlya Dryomov fail: 98413d1ad16SIlya Dryomov ceph_osdc_put_request(req); 98513d1ad16SIlya Dryomov return ERR_PTR(r); 9863d14c5d2SYehuda Sadeh } 9873d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_new_request); 9883d14c5d2SYehuda Sadeh 9893d14c5d2SYehuda Sadeh /* 9903d14c5d2SYehuda Sadeh * We keep osd requests in an rbtree, sorted by ->r_tid. 9913d14c5d2SYehuda Sadeh */ 992fcd00b68SIlya Dryomov DEFINE_RB_FUNCS(request, struct ceph_osd_request, r_tid, r_node) 9934609245eSIlya Dryomov DEFINE_RB_FUNCS(request_mc, struct ceph_osd_request, r_tid, r_mc_node) 9943d14c5d2SYehuda Sadeh 9950247a0cfSIlya Dryomov static bool osd_homeless(struct ceph_osd *osd) 9960247a0cfSIlya Dryomov { 9970247a0cfSIlya Dryomov return osd->o_osd == CEPH_HOMELESS_OSD; 9980247a0cfSIlya Dryomov } 9990247a0cfSIlya Dryomov 10005aea3dcdSIlya Dryomov static bool osd_registered(struct ceph_osd *osd) 10013d14c5d2SYehuda Sadeh { 10025aea3dcdSIlya Dryomov verify_osdc_locked(osd->o_osdc); 10033d14c5d2SYehuda Sadeh 10045aea3dcdSIlya Dryomov return !RB_EMPTY_NODE(&osd->o_node); 10053d14c5d2SYehuda Sadeh } 10063d14c5d2SYehuda Sadeh 10073d14c5d2SYehuda Sadeh /* 10080247a0cfSIlya Dryomov * Assumes @osd is zero-initialized. 10090247a0cfSIlya Dryomov */ 10100247a0cfSIlya Dryomov static void osd_init(struct ceph_osd *osd) 10110247a0cfSIlya Dryomov { 101202113a0fSElena Reshetova refcount_set(&osd->o_ref, 1); 10130247a0cfSIlya Dryomov RB_CLEAR_NODE(&osd->o_node); 10145aea3dcdSIlya Dryomov osd->o_requests = RB_ROOT; 1015922dab61SIlya Dryomov osd->o_linger_requests = RB_ROOT; 10160247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_osd_lru); 10170247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_keepalive_item); 10180247a0cfSIlya Dryomov osd->o_incarnation = 1; 10195aea3dcdSIlya Dryomov mutex_init(&osd->lock); 10200247a0cfSIlya Dryomov } 10210247a0cfSIlya Dryomov 10220247a0cfSIlya Dryomov static void osd_cleanup(struct ceph_osd *osd) 10230247a0cfSIlya Dryomov { 10240247a0cfSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&osd->o_node)); 10255aea3dcdSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_requests)); 1026922dab61SIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_linger_requests)); 10270247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_osd_lru)); 10280247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_keepalive_item)); 10290247a0cfSIlya Dryomov 10300247a0cfSIlya Dryomov if (osd->o_auth.authorizer) { 10310247a0cfSIlya Dryomov WARN_ON(osd_homeless(osd)); 10320247a0cfSIlya Dryomov ceph_auth_destroy_authorizer(osd->o_auth.authorizer); 10330247a0cfSIlya Dryomov } 10340247a0cfSIlya Dryomov } 10350247a0cfSIlya Dryomov 10360247a0cfSIlya Dryomov /* 10373d14c5d2SYehuda Sadeh * Track open sessions with osds. 10383d14c5d2SYehuda Sadeh */ 1039e10006f8SAlex Elder static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum) 10403d14c5d2SYehuda Sadeh { 10413d14c5d2SYehuda Sadeh struct ceph_osd *osd; 10423d14c5d2SYehuda Sadeh 10430247a0cfSIlya Dryomov WARN_ON(onum == CEPH_HOMELESS_OSD); 10440247a0cfSIlya Dryomov 10457a28f59bSIlya Dryomov osd = kzalloc(sizeof(*osd), GFP_NOIO | __GFP_NOFAIL); 10460247a0cfSIlya Dryomov osd_init(osd); 10473d14c5d2SYehuda Sadeh osd->o_osdc = osdc; 1048e10006f8SAlex Elder osd->o_osd = onum; 10493d14c5d2SYehuda Sadeh 1050b7a9e5ddSSage Weil ceph_con_init(&osd->o_con, osd, &osd_con_ops, &osdc->client->msgr); 10513d14c5d2SYehuda Sadeh 10523d14c5d2SYehuda Sadeh return osd; 10533d14c5d2SYehuda Sadeh } 10543d14c5d2SYehuda Sadeh 10553d14c5d2SYehuda Sadeh static struct ceph_osd *get_osd(struct ceph_osd *osd) 10563d14c5d2SYehuda Sadeh { 105702113a0fSElena Reshetova if (refcount_inc_not_zero(&osd->o_ref)) { 105802113a0fSElena Reshetova dout("get_osd %p %d -> %d\n", osd, refcount_read(&osd->o_ref)-1, 105902113a0fSElena Reshetova refcount_read(&osd->o_ref)); 10603d14c5d2SYehuda Sadeh return osd; 10613d14c5d2SYehuda Sadeh } else { 10623d14c5d2SYehuda Sadeh dout("get_osd %p FAIL\n", osd); 10633d14c5d2SYehuda Sadeh return NULL; 10643d14c5d2SYehuda Sadeh } 10653d14c5d2SYehuda Sadeh } 10663d14c5d2SYehuda Sadeh 10673d14c5d2SYehuda Sadeh static void put_osd(struct ceph_osd *osd) 10683d14c5d2SYehuda Sadeh { 106902113a0fSElena Reshetova dout("put_osd %p %d -> %d\n", osd, refcount_read(&osd->o_ref), 107002113a0fSElena Reshetova refcount_read(&osd->o_ref) - 1); 107102113a0fSElena Reshetova if (refcount_dec_and_test(&osd->o_ref)) { 10720247a0cfSIlya Dryomov osd_cleanup(osd); 10733d14c5d2SYehuda Sadeh kfree(osd); 10743d14c5d2SYehuda Sadeh } 10753d14c5d2SYehuda Sadeh } 10763d14c5d2SYehuda Sadeh 1077fcd00b68SIlya Dryomov DEFINE_RB_FUNCS(osd, struct ceph_osd, o_osd, o_node) 1078fcd00b68SIlya Dryomov 10799dd2845cSIlya Dryomov static void __move_osd_to_lru(struct ceph_osd *osd) 10803d14c5d2SYehuda Sadeh { 10819dd2845cSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 10829dd2845cSIlya Dryomov 10839dd2845cSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 10843d14c5d2SYehuda Sadeh BUG_ON(!list_empty(&osd->o_osd_lru)); 1085bbf37ec3SIlya Dryomov 10869dd2845cSIlya Dryomov spin_lock(&osdc->osd_lru_lock); 10873d14c5d2SYehuda Sadeh list_add_tail(&osd->o_osd_lru, &osdc->osd_lru); 10889dd2845cSIlya Dryomov spin_unlock(&osdc->osd_lru_lock); 10899dd2845cSIlya Dryomov 1090a319bf56SIlya Dryomov osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl; 10913d14c5d2SYehuda Sadeh } 10923d14c5d2SYehuda Sadeh 10939dd2845cSIlya Dryomov static void maybe_move_osd_to_lru(struct ceph_osd *osd) 1094bbf37ec3SIlya Dryomov { 10955aea3dcdSIlya Dryomov if (RB_EMPTY_ROOT(&osd->o_requests) && 1096922dab61SIlya Dryomov RB_EMPTY_ROOT(&osd->o_linger_requests)) 10979dd2845cSIlya Dryomov __move_osd_to_lru(osd); 1098bbf37ec3SIlya Dryomov } 1099bbf37ec3SIlya Dryomov 11003d14c5d2SYehuda Sadeh static void __remove_osd_from_lru(struct ceph_osd *osd) 11013d14c5d2SYehuda Sadeh { 11029dd2845cSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 11039dd2845cSIlya Dryomov 11049dd2845cSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 11059dd2845cSIlya Dryomov 11069dd2845cSIlya Dryomov spin_lock(&osdc->osd_lru_lock); 11073d14c5d2SYehuda Sadeh if (!list_empty(&osd->o_osd_lru)) 11083d14c5d2SYehuda Sadeh list_del_init(&osd->o_osd_lru); 11099dd2845cSIlya Dryomov spin_unlock(&osdc->osd_lru_lock); 11103d14c5d2SYehuda Sadeh } 11113d14c5d2SYehuda Sadeh 11123d14c5d2SYehuda Sadeh /* 11135aea3dcdSIlya Dryomov * Close the connection and assign any leftover requests to the 11145aea3dcdSIlya Dryomov * homeless session. 11155aea3dcdSIlya Dryomov */ 11165aea3dcdSIlya Dryomov static void close_osd(struct ceph_osd *osd) 11175aea3dcdSIlya Dryomov { 11185aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 11195aea3dcdSIlya Dryomov struct rb_node *n; 11205aea3dcdSIlya Dryomov 11215aea3dcdSIlya Dryomov verify_osdc_wrlocked(osdc); 11225aea3dcdSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 11235aea3dcdSIlya Dryomov 11245aea3dcdSIlya Dryomov ceph_con_close(&osd->o_con); 11255aea3dcdSIlya Dryomov 11265aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; ) { 11275aea3dcdSIlya Dryomov struct ceph_osd_request *req = 11285aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 11295aea3dcdSIlya Dryomov 11305aea3dcdSIlya Dryomov n = rb_next(n); /* unlink_request() */ 11315aea3dcdSIlya Dryomov 11325aea3dcdSIlya Dryomov dout(" reassigning req %p tid %llu\n", req, req->r_tid); 11335aea3dcdSIlya Dryomov unlink_request(osd, req); 11345aea3dcdSIlya Dryomov link_request(&osdc->homeless_osd, req); 11355aea3dcdSIlya Dryomov } 1136922dab61SIlya Dryomov for (n = rb_first(&osd->o_linger_requests); n; ) { 1137922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = 1138922dab61SIlya Dryomov rb_entry(n, struct ceph_osd_linger_request, node); 1139922dab61SIlya Dryomov 1140922dab61SIlya Dryomov n = rb_next(n); /* unlink_linger() */ 1141922dab61SIlya Dryomov 1142922dab61SIlya Dryomov dout(" reassigning lreq %p linger_id %llu\n", lreq, 1143922dab61SIlya Dryomov lreq->linger_id); 1144922dab61SIlya Dryomov unlink_linger(osd, lreq); 1145922dab61SIlya Dryomov link_linger(&osdc->homeless_osd, lreq); 1146922dab61SIlya Dryomov } 11475aea3dcdSIlya Dryomov 11485aea3dcdSIlya Dryomov __remove_osd_from_lru(osd); 11495aea3dcdSIlya Dryomov erase_osd(&osdc->osds, osd); 11505aea3dcdSIlya Dryomov put_osd(osd); 11515aea3dcdSIlya Dryomov } 11525aea3dcdSIlya Dryomov 11535aea3dcdSIlya Dryomov /* 11543d14c5d2SYehuda Sadeh * reset osd connect 11553d14c5d2SYehuda Sadeh */ 11565aea3dcdSIlya Dryomov static int reopen_osd(struct ceph_osd *osd) 11573d14c5d2SYehuda Sadeh { 1158c3acb181SAlex Elder struct ceph_entity_addr *peer_addr; 11593d14c5d2SYehuda Sadeh 11605aea3dcdSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 11615aea3dcdSIlya Dryomov 11625aea3dcdSIlya Dryomov if (RB_EMPTY_ROOT(&osd->o_requests) && 1163922dab61SIlya Dryomov RB_EMPTY_ROOT(&osd->o_linger_requests)) { 11645aea3dcdSIlya Dryomov close_osd(osd); 1165c3acb181SAlex Elder return -ENODEV; 1166c3acb181SAlex Elder } 1167c3acb181SAlex Elder 11685aea3dcdSIlya Dryomov peer_addr = &osd->o_osdc->osdmap->osd_addr[osd->o_osd]; 1169c3acb181SAlex Elder if (!memcmp(peer_addr, &osd->o_con.peer_addr, sizeof (*peer_addr)) && 11703d14c5d2SYehuda Sadeh !ceph_con_opened(&osd->o_con)) { 11715aea3dcdSIlya Dryomov struct rb_node *n; 1172c3acb181SAlex Elder 11733d14c5d2SYehuda Sadeh dout("osd addr hasn't changed and connection never opened, " 11740b4af2e8SIlya Dryomov "letting msgr retry\n"); 11753d14c5d2SYehuda Sadeh /* touch each r_stamp for handle_timeout()'s benfit */ 11765aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) { 11775aea3dcdSIlya Dryomov struct ceph_osd_request *req = 11785aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 11793d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 11805aea3dcdSIlya Dryomov } 1181c3acb181SAlex Elder 1182c3acb181SAlex Elder return -EAGAIN; 11833d14c5d2SYehuda Sadeh } 1184c3acb181SAlex Elder 1185c3acb181SAlex Elder ceph_con_close(&osd->o_con); 1186c3acb181SAlex Elder ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, peer_addr); 1187c3acb181SAlex Elder osd->o_incarnation++; 1188c3acb181SAlex Elder 1189c3acb181SAlex Elder return 0; 11903d14c5d2SYehuda Sadeh } 11913d14c5d2SYehuda Sadeh 11925aea3dcdSIlya Dryomov static struct ceph_osd *lookup_create_osd(struct ceph_osd_client *osdc, int o, 11935aea3dcdSIlya Dryomov bool wrlocked) 11943d14c5d2SYehuda Sadeh { 11955aea3dcdSIlya Dryomov struct ceph_osd *osd; 11965aea3dcdSIlya Dryomov 11975aea3dcdSIlya Dryomov if (wrlocked) 11985aea3dcdSIlya Dryomov verify_osdc_wrlocked(osdc); 11995aea3dcdSIlya Dryomov else 12005aea3dcdSIlya Dryomov verify_osdc_locked(osdc); 12015aea3dcdSIlya Dryomov 12025aea3dcdSIlya Dryomov if (o != CEPH_HOMELESS_OSD) 12035aea3dcdSIlya Dryomov osd = lookup_osd(&osdc->osds, o); 12045aea3dcdSIlya Dryomov else 12055aea3dcdSIlya Dryomov osd = &osdc->homeless_osd; 12065aea3dcdSIlya Dryomov if (!osd) { 12075aea3dcdSIlya Dryomov if (!wrlocked) 12085aea3dcdSIlya Dryomov return ERR_PTR(-EAGAIN); 12095aea3dcdSIlya Dryomov 12105aea3dcdSIlya Dryomov osd = create_osd(osdc, o); 12115aea3dcdSIlya Dryomov insert_osd(&osdc->osds, osd); 12125aea3dcdSIlya Dryomov ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, 12135aea3dcdSIlya Dryomov &osdc->osdmap->osd_addr[osd->o_osd]); 12145aea3dcdSIlya Dryomov } 12155aea3dcdSIlya Dryomov 12165aea3dcdSIlya Dryomov dout("%s osdc %p osd%d -> osd %p\n", __func__, osdc, o, osd); 12175aea3dcdSIlya Dryomov return osd; 1218a40c4f10SYehuda Sadeh } 1219a40c4f10SYehuda Sadeh 12203d14c5d2SYehuda Sadeh /* 12215aea3dcdSIlya Dryomov * Create request <-> OSD session relation. 12225aea3dcdSIlya Dryomov * 12235aea3dcdSIlya Dryomov * @req has to be assigned a tid, @osd may be homeless. 12243d14c5d2SYehuda Sadeh */ 12255aea3dcdSIlya Dryomov static void link_request(struct ceph_osd *osd, struct ceph_osd_request *req) 12263d14c5d2SYehuda Sadeh { 12275aea3dcdSIlya Dryomov verify_osd_locked(osd); 12285aea3dcdSIlya Dryomov WARN_ON(!req->r_tid || req->r_osd); 12295aea3dcdSIlya Dryomov dout("%s osd %p osd%d req %p tid %llu\n", __func__, osd, osd->o_osd, 123035f9f8a0SSage Weil req, req->r_tid); 12315aea3dcdSIlya Dryomov 12325aea3dcdSIlya Dryomov if (!osd_homeless(osd)) 12335aea3dcdSIlya Dryomov __remove_osd_from_lru(osd); 12345aea3dcdSIlya Dryomov else 12355aea3dcdSIlya Dryomov atomic_inc(&osd->o_osdc->num_homeless); 12365aea3dcdSIlya Dryomov 12375aea3dcdSIlya Dryomov get_osd(osd); 12385aea3dcdSIlya Dryomov insert_request(&osd->o_requests, req); 12395aea3dcdSIlya Dryomov req->r_osd = osd; 124035f9f8a0SSage Weil } 124135f9f8a0SSage Weil 12425aea3dcdSIlya Dryomov static void unlink_request(struct ceph_osd *osd, struct ceph_osd_request *req) 12433d14c5d2SYehuda Sadeh { 12445aea3dcdSIlya Dryomov verify_osd_locked(osd); 12455aea3dcdSIlya Dryomov WARN_ON(req->r_osd != osd); 12465aea3dcdSIlya Dryomov dout("%s osd %p osd%d req %p tid %llu\n", __func__, osd, osd->o_osd, 12475aea3dcdSIlya Dryomov req, req->r_tid); 12485aea3dcdSIlya Dryomov 12495aea3dcdSIlya Dryomov req->r_osd = NULL; 12505aea3dcdSIlya Dryomov erase_request(&osd->o_requests, req); 12515aea3dcdSIlya Dryomov put_osd(osd); 12525aea3dcdSIlya Dryomov 12535aea3dcdSIlya Dryomov if (!osd_homeless(osd)) 12545aea3dcdSIlya Dryomov maybe_move_osd_to_lru(osd); 12555aea3dcdSIlya Dryomov else 12565aea3dcdSIlya Dryomov atomic_dec(&osd->o_osdc->num_homeless); 12573d14c5d2SYehuda Sadeh } 12583d14c5d2SYehuda Sadeh 125963244fa1SIlya Dryomov static bool __pool_full(struct ceph_pg_pool_info *pi) 126063244fa1SIlya Dryomov { 126163244fa1SIlya Dryomov return pi->flags & CEPH_POOL_FLAG_FULL; 126263244fa1SIlya Dryomov } 126363244fa1SIlya Dryomov 126442c1b124SIlya Dryomov static bool have_pool_full(struct ceph_osd_client *osdc) 126542c1b124SIlya Dryomov { 126642c1b124SIlya Dryomov struct rb_node *n; 126742c1b124SIlya Dryomov 126842c1b124SIlya Dryomov for (n = rb_first(&osdc->osdmap->pg_pools); n; n = rb_next(n)) { 126942c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 127042c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 127142c1b124SIlya Dryomov 127242c1b124SIlya Dryomov if (__pool_full(pi)) 127342c1b124SIlya Dryomov return true; 127442c1b124SIlya Dryomov } 127542c1b124SIlya Dryomov 127642c1b124SIlya Dryomov return false; 127742c1b124SIlya Dryomov } 127842c1b124SIlya Dryomov 12795aea3dcdSIlya Dryomov static bool pool_full(struct ceph_osd_client *osdc, s64 pool_id) 12805aea3dcdSIlya Dryomov { 12815aea3dcdSIlya Dryomov struct ceph_pg_pool_info *pi; 12825aea3dcdSIlya Dryomov 12835aea3dcdSIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, pool_id); 12845aea3dcdSIlya Dryomov if (!pi) 12855aea3dcdSIlya Dryomov return false; 12865aea3dcdSIlya Dryomov 12875aea3dcdSIlya Dryomov return __pool_full(pi); 12885aea3dcdSIlya Dryomov } 12895aea3dcdSIlya Dryomov 12903d14c5d2SYehuda Sadeh /* 1291d29adb34SJosh Durgin * Returns whether a request should be blocked from being sent 1292d29adb34SJosh Durgin * based on the current osdmap and osd_client settings. 1293d29adb34SJosh Durgin */ 129463244fa1SIlya Dryomov static bool target_should_be_paused(struct ceph_osd_client *osdc, 129563244fa1SIlya Dryomov const struct ceph_osd_request_target *t, 129663244fa1SIlya Dryomov struct ceph_pg_pool_info *pi) 129763244fa1SIlya Dryomov { 1298b7ec35b3SIlya Dryomov bool pauserd = ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSERD); 1299b7ec35b3SIlya Dryomov bool pausewr = ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSEWR) || 1300b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || 130163244fa1SIlya Dryomov __pool_full(pi); 130263244fa1SIlya Dryomov 130363244fa1SIlya Dryomov WARN_ON(pi->id != t->base_oloc.pool); 130458eb7932SJeff Layton return ((t->flags & CEPH_OSD_FLAG_READ) && pauserd) || 130558eb7932SJeff Layton ((t->flags & CEPH_OSD_FLAG_WRITE) && pausewr) || 130658eb7932SJeff Layton (osdc->osdmap->epoch < osdc->epoch_barrier); 130763244fa1SIlya Dryomov } 130863244fa1SIlya Dryomov 130963244fa1SIlya Dryomov enum calc_target_result { 131063244fa1SIlya Dryomov CALC_TARGET_NO_ACTION = 0, 131163244fa1SIlya Dryomov CALC_TARGET_NEED_RESEND, 131263244fa1SIlya Dryomov CALC_TARGET_POOL_DNE, 131363244fa1SIlya Dryomov }; 131463244fa1SIlya Dryomov 131563244fa1SIlya Dryomov static enum calc_target_result calc_target(struct ceph_osd_client *osdc, 131663244fa1SIlya Dryomov struct ceph_osd_request_target *t, 131763244fa1SIlya Dryomov bool any_change) 131863244fa1SIlya Dryomov { 131963244fa1SIlya Dryomov struct ceph_pg_pool_info *pi; 132063244fa1SIlya Dryomov struct ceph_pg pgid, last_pgid; 132163244fa1SIlya Dryomov struct ceph_osds up, acting; 132263244fa1SIlya Dryomov bool force_resend = false; 132363244fa1SIlya Dryomov bool need_check_tiering = false; 132463244fa1SIlya Dryomov bool need_resend = false; 1325b7ec35b3SIlya Dryomov bool sort_bitwise = ceph_osdmap_flag(osdc, CEPH_OSDMAP_SORTBITWISE); 132663244fa1SIlya Dryomov enum calc_target_result ct_res; 132763244fa1SIlya Dryomov int ret; 132863244fa1SIlya Dryomov 132963244fa1SIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, t->base_oloc.pool); 133063244fa1SIlya Dryomov if (!pi) { 133163244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 133263244fa1SIlya Dryomov ct_res = CALC_TARGET_POOL_DNE; 133363244fa1SIlya Dryomov goto out; 133463244fa1SIlya Dryomov } 133563244fa1SIlya Dryomov 133663244fa1SIlya Dryomov if (osdc->osdmap->epoch == pi->last_force_request_resend) { 1337dc93e0e2SIlya Dryomov if (t->last_force_resend < pi->last_force_request_resend) { 1338dc93e0e2SIlya Dryomov t->last_force_resend = pi->last_force_request_resend; 133963244fa1SIlya Dryomov force_resend = true; 1340dc93e0e2SIlya Dryomov } else if (t->last_force_resend == 0) { 134163244fa1SIlya Dryomov force_resend = true; 134263244fa1SIlya Dryomov } 134363244fa1SIlya Dryomov } 134463244fa1SIlya Dryomov if (ceph_oid_empty(&t->target_oid) || force_resend) { 134563244fa1SIlya Dryomov ceph_oid_copy(&t->target_oid, &t->base_oid); 134663244fa1SIlya Dryomov need_check_tiering = true; 134763244fa1SIlya Dryomov } 134863244fa1SIlya Dryomov if (ceph_oloc_empty(&t->target_oloc) || force_resend) { 134963244fa1SIlya Dryomov ceph_oloc_copy(&t->target_oloc, &t->base_oloc); 135063244fa1SIlya Dryomov need_check_tiering = true; 135163244fa1SIlya Dryomov } 135263244fa1SIlya Dryomov 135363244fa1SIlya Dryomov if (need_check_tiering && 135463244fa1SIlya Dryomov (t->flags & CEPH_OSD_FLAG_IGNORE_OVERLAY) == 0) { 135563244fa1SIlya Dryomov if (t->flags & CEPH_OSD_FLAG_READ && pi->read_tier >= 0) 135663244fa1SIlya Dryomov t->target_oloc.pool = pi->read_tier; 135763244fa1SIlya Dryomov if (t->flags & CEPH_OSD_FLAG_WRITE && pi->write_tier >= 0) 135863244fa1SIlya Dryomov t->target_oloc.pool = pi->write_tier; 135963244fa1SIlya Dryomov } 136063244fa1SIlya Dryomov 136163244fa1SIlya Dryomov ret = ceph_object_locator_to_pg(osdc->osdmap, &t->target_oid, 136263244fa1SIlya Dryomov &t->target_oloc, &pgid); 136363244fa1SIlya Dryomov if (ret) { 136463244fa1SIlya Dryomov WARN_ON(ret != -ENOENT); 136563244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 136663244fa1SIlya Dryomov ct_res = CALC_TARGET_POOL_DNE; 136763244fa1SIlya Dryomov goto out; 136863244fa1SIlya Dryomov } 136963244fa1SIlya Dryomov last_pgid.pool = pgid.pool; 137063244fa1SIlya Dryomov last_pgid.seed = ceph_stable_mod(pgid.seed, t->pg_num, t->pg_num_mask); 137163244fa1SIlya Dryomov 137263244fa1SIlya Dryomov ceph_pg_to_up_acting_osds(osdc->osdmap, &pgid, &up, &acting); 137363244fa1SIlya Dryomov if (any_change && 137463244fa1SIlya Dryomov ceph_is_new_interval(&t->acting, 137563244fa1SIlya Dryomov &acting, 137663244fa1SIlya Dryomov &t->up, 137763244fa1SIlya Dryomov &up, 137863244fa1SIlya Dryomov t->size, 137963244fa1SIlya Dryomov pi->size, 138063244fa1SIlya Dryomov t->min_size, 138163244fa1SIlya Dryomov pi->min_size, 138263244fa1SIlya Dryomov t->pg_num, 138363244fa1SIlya Dryomov pi->pg_num, 138463244fa1SIlya Dryomov t->sort_bitwise, 138563244fa1SIlya Dryomov sort_bitwise, 138663244fa1SIlya Dryomov &last_pgid)) 138763244fa1SIlya Dryomov force_resend = true; 138863244fa1SIlya Dryomov 138963244fa1SIlya Dryomov if (t->paused && !target_should_be_paused(osdc, t, pi)) { 139063244fa1SIlya Dryomov t->paused = false; 139163244fa1SIlya Dryomov need_resend = true; 139263244fa1SIlya Dryomov } 139363244fa1SIlya Dryomov 139463244fa1SIlya Dryomov if (ceph_pg_compare(&t->pgid, &pgid) || 139563244fa1SIlya Dryomov ceph_osds_changed(&t->acting, &acting, any_change) || 139663244fa1SIlya Dryomov force_resend) { 139763244fa1SIlya Dryomov t->pgid = pgid; /* struct */ 1398dc98ff72SIlya Dryomov ceph_pg_to_primary_shard(osdc->osdmap, &pgid, &t->spgid); 139963244fa1SIlya Dryomov ceph_osds_copy(&t->acting, &acting); 140063244fa1SIlya Dryomov ceph_osds_copy(&t->up, &up); 140163244fa1SIlya Dryomov t->size = pi->size; 140263244fa1SIlya Dryomov t->min_size = pi->min_size; 140363244fa1SIlya Dryomov t->pg_num = pi->pg_num; 140463244fa1SIlya Dryomov t->pg_num_mask = pi->pg_num_mask; 140563244fa1SIlya Dryomov t->sort_bitwise = sort_bitwise; 140663244fa1SIlya Dryomov 140763244fa1SIlya Dryomov t->osd = acting.primary; 140863244fa1SIlya Dryomov need_resend = true; 140963244fa1SIlya Dryomov } 141063244fa1SIlya Dryomov 141163244fa1SIlya Dryomov ct_res = need_resend ? CALC_TARGET_NEED_RESEND : CALC_TARGET_NO_ACTION; 141263244fa1SIlya Dryomov out: 141363244fa1SIlya Dryomov dout("%s t %p -> ct_res %d osd %d\n", __func__, t, ct_res, t->osd); 141463244fa1SIlya Dryomov return ct_res; 141563244fa1SIlya Dryomov } 141663244fa1SIlya Dryomov 1417bb873b53SIlya Dryomov static void setup_request_data(struct ceph_osd_request *req, 1418bb873b53SIlya Dryomov struct ceph_msg *msg) 14193d14c5d2SYehuda Sadeh { 1420bb873b53SIlya Dryomov u32 data_len = 0; 1421bb873b53SIlya Dryomov int i; 14223d14c5d2SYehuda Sadeh 1423bb873b53SIlya Dryomov if (!list_empty(&msg->data)) 1424bb873b53SIlya Dryomov return; 14253d14c5d2SYehuda Sadeh 1426bb873b53SIlya Dryomov WARN_ON(msg->data_length); 1427bb873b53SIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 1428bb873b53SIlya Dryomov struct ceph_osd_req_op *op = &req->r_ops[i]; 1429bb873b53SIlya Dryomov 1430bb873b53SIlya Dryomov switch (op->op) { 1431bb873b53SIlya Dryomov /* request */ 1432bb873b53SIlya Dryomov case CEPH_OSD_OP_WRITE: 1433bb873b53SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 1434bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->extent.length); 1435bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->extent.osd_data); 1436bb873b53SIlya Dryomov break; 1437bb873b53SIlya Dryomov case CEPH_OSD_OP_SETXATTR: 1438bb873b53SIlya Dryomov case CEPH_OSD_OP_CMPXATTR: 1439bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->xattr.name_len + 1440bb873b53SIlya Dryomov op->xattr.value_len); 1441bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->xattr.osd_data); 1442bb873b53SIlya Dryomov break; 1443922dab61SIlya Dryomov case CEPH_OSD_OP_NOTIFY_ACK: 1444922dab61SIlya Dryomov ceph_osdc_msg_data_add(msg, 1445922dab61SIlya Dryomov &op->notify_ack.request_data); 1446922dab61SIlya Dryomov break; 1447bb873b53SIlya Dryomov 1448bb873b53SIlya Dryomov /* reply */ 1449bb873b53SIlya Dryomov case CEPH_OSD_OP_STAT: 1450bb873b53SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 1451bb873b53SIlya Dryomov &op->raw_data_in); 1452bb873b53SIlya Dryomov break; 1453bb873b53SIlya Dryomov case CEPH_OSD_OP_READ: 1454bb873b53SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 1455bb873b53SIlya Dryomov &op->extent.osd_data); 1456bb873b53SIlya Dryomov break; 1457a4ed38d7SDouglas Fuller case CEPH_OSD_OP_LIST_WATCHERS: 1458a4ed38d7SDouglas Fuller ceph_osdc_msg_data_add(req->r_reply, 1459a4ed38d7SDouglas Fuller &op->list_watchers.response_data); 1460a4ed38d7SDouglas Fuller break; 1461bb873b53SIlya Dryomov 1462bb873b53SIlya Dryomov /* both */ 1463bb873b53SIlya Dryomov case CEPH_OSD_OP_CALL: 1464bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->cls.class_len + 1465bb873b53SIlya Dryomov op->cls.method_len + 1466bb873b53SIlya Dryomov op->cls.indata_len); 1467bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->cls.request_info); 1468bb873b53SIlya Dryomov /* optional, can be NONE */ 1469bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->cls.request_data); 1470bb873b53SIlya Dryomov /* optional, can be NONE */ 1471bb873b53SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 1472bb873b53SIlya Dryomov &op->cls.response_data); 1473bb873b53SIlya Dryomov break; 147419079203SIlya Dryomov case CEPH_OSD_OP_NOTIFY: 147519079203SIlya Dryomov ceph_osdc_msg_data_add(msg, 147619079203SIlya Dryomov &op->notify.request_data); 147719079203SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 147819079203SIlya Dryomov &op->notify.response_data); 147919079203SIlya Dryomov break; 1480bb873b53SIlya Dryomov } 1481bb873b53SIlya Dryomov 1482bb873b53SIlya Dryomov data_len += op->indata_len; 1483bb873b53SIlya Dryomov } 1484bb873b53SIlya Dryomov 1485bb873b53SIlya Dryomov WARN_ON(data_len != msg->data_length); 1486bb873b53SIlya Dryomov } 1487bb873b53SIlya Dryomov 14882e59ffd1SIlya Dryomov static void encode_pgid(void **p, const struct ceph_pg *pgid) 14892e59ffd1SIlya Dryomov { 14902e59ffd1SIlya Dryomov ceph_encode_8(p, 1); 14912e59ffd1SIlya Dryomov ceph_encode_64(p, pgid->pool); 14922e59ffd1SIlya Dryomov ceph_encode_32(p, pgid->seed); 14932e59ffd1SIlya Dryomov ceph_encode_32(p, -1); /* preferred */ 14942e59ffd1SIlya Dryomov } 14952e59ffd1SIlya Dryomov 14962e59ffd1SIlya Dryomov static void encode_oloc(void **p, void *end, 14972e59ffd1SIlya Dryomov const struct ceph_object_locator *oloc) 14982e59ffd1SIlya Dryomov { 14992e59ffd1SIlya Dryomov ceph_start_encoding(p, 5, 4, ceph_oloc_encoding_size(oloc)); 15002e59ffd1SIlya Dryomov ceph_encode_64(p, oloc->pool); 15012e59ffd1SIlya Dryomov ceph_encode_32(p, -1); /* preferred */ 15022e59ffd1SIlya Dryomov ceph_encode_32(p, 0); /* key len */ 15032e59ffd1SIlya Dryomov if (oloc->pool_ns) 15042e59ffd1SIlya Dryomov ceph_encode_string(p, end, oloc->pool_ns->str, 15052e59ffd1SIlya Dryomov oloc->pool_ns->len); 15062e59ffd1SIlya Dryomov else 15072e59ffd1SIlya Dryomov ceph_encode_32(p, 0); 15082e59ffd1SIlya Dryomov } 15092e59ffd1SIlya Dryomov 1510bb873b53SIlya Dryomov static void encode_request(struct ceph_osd_request *req, struct ceph_msg *msg) 1511bb873b53SIlya Dryomov { 1512bb873b53SIlya Dryomov void *p = msg->front.iov_base; 1513bb873b53SIlya Dryomov void *const end = p + msg->front_alloc_len; 1514bb873b53SIlya Dryomov u32 data_len = 0; 1515bb873b53SIlya Dryomov int i; 1516bb873b53SIlya Dryomov 1517bb873b53SIlya Dryomov if (req->r_flags & CEPH_OSD_FLAG_WRITE) { 1518bb873b53SIlya Dryomov /* snapshots aren't writeable */ 1519bb873b53SIlya Dryomov WARN_ON(req->r_snapid != CEPH_NOSNAP); 1520bb873b53SIlya Dryomov } else { 1521bb873b53SIlya Dryomov WARN_ON(req->r_mtime.tv_sec || req->r_mtime.tv_nsec || 1522bb873b53SIlya Dryomov req->r_data_offset || req->r_snapc); 1523bb873b53SIlya Dryomov } 1524bb873b53SIlya Dryomov 1525bb873b53SIlya Dryomov setup_request_data(req, msg); 1526bb873b53SIlya Dryomov 1527bb873b53SIlya Dryomov ceph_encode_32(&p, 1); /* client_inc, always 1 */ 1528bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_osdc->osdmap->epoch); 1529bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_flags); 1530bb873b53SIlya Dryomov ceph_encode_timespec(p, &req->r_mtime); 1531bb873b53SIlya Dryomov p += sizeof(struct ceph_timespec); 1532aa26d662SJeff Layton 1533aa26d662SJeff Layton /* reassert_version */ 1534aa26d662SJeff Layton memset(p, 0, sizeof(struct ceph_eversion)); 1535aa26d662SJeff Layton p += sizeof(struct ceph_eversion); 1536bb873b53SIlya Dryomov 15372e59ffd1SIlya Dryomov encode_oloc(&p, end, &req->r_t.target_oloc); 15382e59ffd1SIlya Dryomov encode_pgid(&p, &req->r_t.pgid); 15392e59ffd1SIlya Dryomov ceph_encode_string(&p, end, req->r_t.target_oid.name, 15402e59ffd1SIlya Dryomov req->r_t.target_oid.name_len); 1541bb873b53SIlya Dryomov 1542bb873b53SIlya Dryomov /* ops, can imply data */ 1543bb873b53SIlya Dryomov ceph_encode_16(&p, req->r_num_ops); 1544bb873b53SIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 1545bb873b53SIlya Dryomov data_len += osd_req_encode_op(p, &req->r_ops[i]); 1546bb873b53SIlya Dryomov p += sizeof(struct ceph_osd_op); 1547bb873b53SIlya Dryomov } 1548bb873b53SIlya Dryomov 1549bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapid); /* snapid */ 1550bb873b53SIlya Dryomov if (req->r_snapc) { 1551bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapc->seq); 1552bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_snapc->num_snaps); 1553bb873b53SIlya Dryomov for (i = 0; i < req->r_snapc->num_snaps; i++) 1554bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapc->snaps[i]); 1555bb873b53SIlya Dryomov } else { 1556bb873b53SIlya Dryomov ceph_encode_64(&p, 0); /* snap_seq */ 1557bb873b53SIlya Dryomov ceph_encode_32(&p, 0); /* snaps len */ 1558bb873b53SIlya Dryomov } 1559bb873b53SIlya Dryomov 1560bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_attempts); /* retry_attempt */ 1561bb873b53SIlya Dryomov 1562bb873b53SIlya Dryomov BUG_ON(p > end); 1563bb873b53SIlya Dryomov msg->front.iov_len = p - msg->front.iov_base; 1564bb873b53SIlya Dryomov msg->hdr.version = cpu_to_le16(4); /* MOSDOp v4 */ 1565bb873b53SIlya Dryomov msg->hdr.front_len = cpu_to_le32(msg->front.iov_len); 1566bb873b53SIlya Dryomov msg->hdr.data_len = cpu_to_le32(data_len); 1567bb873b53SIlya Dryomov /* 1568bb873b53SIlya Dryomov * The header "data_off" is a hint to the receiver allowing it 1569bb873b53SIlya Dryomov * to align received data into its buffers such that there's no 1570bb873b53SIlya Dryomov * need to re-copy it before writing it to disk (direct I/O). 1571bb873b53SIlya Dryomov */ 1572bb873b53SIlya Dryomov msg->hdr.data_off = cpu_to_le16(req->r_data_offset); 1573bb873b53SIlya Dryomov 15744a3262b1SIlya Dryomov dout("%s req %p oid %s oid_len %d front %zu data %u\n", __func__, 15754a3262b1SIlya Dryomov req, req->r_t.target_oid.name, req->r_t.target_oid.name_len, 15764a3262b1SIlya Dryomov msg->front.iov_len, data_len); 1577bb873b53SIlya Dryomov } 1578bb873b53SIlya Dryomov 1579bb873b53SIlya Dryomov /* 1580bb873b53SIlya Dryomov * @req has to be assigned a tid and registered. 1581bb873b53SIlya Dryomov */ 1582bb873b53SIlya Dryomov static void send_request(struct ceph_osd_request *req) 1583bb873b53SIlya Dryomov { 1584bb873b53SIlya Dryomov struct ceph_osd *osd = req->r_osd; 1585bb873b53SIlya Dryomov 15865aea3dcdSIlya Dryomov verify_osd_locked(osd); 1587bb873b53SIlya Dryomov WARN_ON(osd->o_osd != req->r_t.osd); 1588bb873b53SIlya Dryomov 15895aea3dcdSIlya Dryomov /* 15905aea3dcdSIlya Dryomov * We may have a previously queued request message hanging 15915aea3dcdSIlya Dryomov * around. Cancel it to avoid corrupting the msgr. 15925aea3dcdSIlya Dryomov */ 15935aea3dcdSIlya Dryomov if (req->r_sent) 15945aea3dcdSIlya Dryomov ceph_msg_revoke(req->r_request); 15955aea3dcdSIlya Dryomov 1596bb873b53SIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_KNOWN_REDIR; 1597bb873b53SIlya Dryomov if (req->r_attempts) 1598bb873b53SIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_RETRY; 1599bb873b53SIlya Dryomov else 1600bb873b53SIlya Dryomov WARN_ON(req->r_flags & CEPH_OSD_FLAG_RETRY); 1601bb873b53SIlya Dryomov 1602bb873b53SIlya Dryomov encode_request(req, req->r_request); 1603bb873b53SIlya Dryomov 1604dc98ff72SIlya Dryomov dout("%s req %p tid %llu to pgid %llu.%x spgid %llu.%xs%d osd%d flags 0x%x attempt %d\n", 1605bb873b53SIlya Dryomov __func__, req, req->r_tid, req->r_t.pgid.pool, req->r_t.pgid.seed, 1606dc98ff72SIlya Dryomov req->r_t.spgid.pgid.pool, req->r_t.spgid.pgid.seed, 1607dc98ff72SIlya Dryomov req->r_t.spgid.shard, osd->o_osd, req->r_flags, req->r_attempts); 1608bb873b53SIlya Dryomov 1609bb873b53SIlya Dryomov req->r_t.paused = false; 16103d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 1611bb873b53SIlya Dryomov req->r_attempts++; 16123d14c5d2SYehuda Sadeh 1613bb873b53SIlya Dryomov req->r_sent = osd->o_incarnation; 1614bb873b53SIlya Dryomov req->r_request->hdr.tid = cpu_to_le64(req->r_tid); 1615bb873b53SIlya Dryomov ceph_con_send(&osd->o_con, ceph_msg_get(req->r_request)); 16163d14c5d2SYehuda Sadeh } 16173d14c5d2SYehuda Sadeh 161842c1b124SIlya Dryomov static void maybe_request_map(struct ceph_osd_client *osdc) 161942c1b124SIlya Dryomov { 162042c1b124SIlya Dryomov bool continuous = false; 162142c1b124SIlya Dryomov 16225aea3dcdSIlya Dryomov verify_osdc_locked(osdc); 162342c1b124SIlya Dryomov WARN_ON(!osdc->osdmap->epoch); 162442c1b124SIlya Dryomov 1625b7ec35b3SIlya Dryomov if (ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || 1626b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSERD) || 1627b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSEWR)) { 162842c1b124SIlya Dryomov dout("%s osdc %p continuous\n", __func__, osdc); 162942c1b124SIlya Dryomov continuous = true; 163042c1b124SIlya Dryomov } else { 163142c1b124SIlya Dryomov dout("%s osdc %p onetime\n", __func__, osdc); 163242c1b124SIlya Dryomov } 163342c1b124SIlya Dryomov 163442c1b124SIlya Dryomov if (ceph_monc_want_map(&osdc->client->monc, CEPH_SUB_OSDMAP, 163542c1b124SIlya Dryomov osdc->osdmap->epoch + 1, continuous)) 163642c1b124SIlya Dryomov ceph_monc_renew_subs(&osdc->client->monc); 163742c1b124SIlya Dryomov } 163842c1b124SIlya Dryomov 1639a1f4020aSJeff Layton static void complete_request(struct ceph_osd_request *req, int err); 16404609245eSIlya Dryomov static void send_map_check(struct ceph_osd_request *req); 16414609245eSIlya Dryomov 16425aea3dcdSIlya Dryomov static void __submit_request(struct ceph_osd_request *req, bool wrlocked) 16430bbfdfe8SIlya Dryomov { 16445aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 16455aea3dcdSIlya Dryomov struct ceph_osd *osd; 16464609245eSIlya Dryomov enum calc_target_result ct_res; 16475aea3dcdSIlya Dryomov bool need_send = false; 16485aea3dcdSIlya Dryomov bool promoted = false; 1649a1f4020aSJeff Layton bool need_abort = false; 16500bbfdfe8SIlya Dryomov 1651b18b9550SIlya Dryomov WARN_ON(req->r_tid); 16525aea3dcdSIlya Dryomov dout("%s req %p wrlocked %d\n", __func__, req, wrlocked); 16535aea3dcdSIlya Dryomov 16545aea3dcdSIlya Dryomov again: 1655dc93e0e2SIlya Dryomov ct_res = calc_target(osdc, &req->r_t, false); 16564609245eSIlya Dryomov if (ct_res == CALC_TARGET_POOL_DNE && !wrlocked) 16574609245eSIlya Dryomov goto promote; 16584609245eSIlya Dryomov 16595aea3dcdSIlya Dryomov osd = lookup_create_osd(osdc, req->r_t.osd, wrlocked); 16605aea3dcdSIlya Dryomov if (IS_ERR(osd)) { 16615aea3dcdSIlya Dryomov WARN_ON(PTR_ERR(osd) != -EAGAIN || wrlocked); 16625aea3dcdSIlya Dryomov goto promote; 16635aea3dcdSIlya Dryomov } 16645aea3dcdSIlya Dryomov 166558eb7932SJeff Layton if (osdc->osdmap->epoch < osdc->epoch_barrier) { 166658eb7932SJeff Layton dout("req %p epoch %u barrier %u\n", req, osdc->osdmap->epoch, 166758eb7932SJeff Layton osdc->epoch_barrier); 166858eb7932SJeff Layton req->r_t.paused = true; 166958eb7932SJeff Layton maybe_request_map(osdc); 167058eb7932SJeff Layton } else if ((req->r_flags & CEPH_OSD_FLAG_WRITE) && 1671b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSEWR)) { 16725aea3dcdSIlya Dryomov dout("req %p pausewr\n", req); 16735aea3dcdSIlya Dryomov req->r_t.paused = true; 16745aea3dcdSIlya Dryomov maybe_request_map(osdc); 16755aea3dcdSIlya Dryomov } else if ((req->r_flags & CEPH_OSD_FLAG_READ) && 1676b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSERD)) { 16775aea3dcdSIlya Dryomov dout("req %p pauserd\n", req); 16785aea3dcdSIlya Dryomov req->r_t.paused = true; 16795aea3dcdSIlya Dryomov maybe_request_map(osdc); 16805aea3dcdSIlya Dryomov } else if ((req->r_flags & CEPH_OSD_FLAG_WRITE) && 16815aea3dcdSIlya Dryomov !(req->r_flags & (CEPH_OSD_FLAG_FULL_TRY | 16825aea3dcdSIlya Dryomov CEPH_OSD_FLAG_FULL_FORCE)) && 1683b7ec35b3SIlya Dryomov (ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || 16845aea3dcdSIlya Dryomov pool_full(osdc, req->r_t.base_oloc.pool))) { 16855aea3dcdSIlya Dryomov dout("req %p full/pool_full\n", req); 16865aea3dcdSIlya Dryomov pr_warn_ratelimited("FULL or reached pool quota\n"); 16875aea3dcdSIlya Dryomov req->r_t.paused = true; 16885aea3dcdSIlya Dryomov maybe_request_map(osdc); 1689a1f4020aSJeff Layton if (req->r_abort_on_full) 1690a1f4020aSJeff Layton need_abort = true; 16915aea3dcdSIlya Dryomov } else if (!osd_homeless(osd)) { 16925aea3dcdSIlya Dryomov need_send = true; 16930bbfdfe8SIlya Dryomov } else { 16945aea3dcdSIlya Dryomov maybe_request_map(osdc); 16950bbfdfe8SIlya Dryomov } 16960bbfdfe8SIlya Dryomov 16975aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 16985aea3dcdSIlya Dryomov /* 16995aea3dcdSIlya Dryomov * Assign the tid atomically with send_request() to protect 17005aea3dcdSIlya Dryomov * multiple writes to the same object from racing with each 17015aea3dcdSIlya Dryomov * other, resulting in out of order ops on the OSDs. 17025aea3dcdSIlya Dryomov */ 17035aea3dcdSIlya Dryomov req->r_tid = atomic64_inc_return(&osdc->last_tid); 17045aea3dcdSIlya Dryomov link_request(osd, req); 17055aea3dcdSIlya Dryomov if (need_send) 17065aea3dcdSIlya Dryomov send_request(req); 1707a1f4020aSJeff Layton else if (need_abort) 1708a1f4020aSJeff Layton complete_request(req, -ENOSPC); 17095aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 17105aea3dcdSIlya Dryomov 17114609245eSIlya Dryomov if (ct_res == CALC_TARGET_POOL_DNE) 17124609245eSIlya Dryomov send_map_check(req); 17134609245eSIlya Dryomov 17145aea3dcdSIlya Dryomov if (promoted) 17155aea3dcdSIlya Dryomov downgrade_write(&osdc->lock); 17165aea3dcdSIlya Dryomov return; 17175aea3dcdSIlya Dryomov 17185aea3dcdSIlya Dryomov promote: 17195aea3dcdSIlya Dryomov up_read(&osdc->lock); 17205aea3dcdSIlya Dryomov down_write(&osdc->lock); 17215aea3dcdSIlya Dryomov wrlocked = true; 17225aea3dcdSIlya Dryomov promoted = true; 17235aea3dcdSIlya Dryomov goto again; 17240bbfdfe8SIlya Dryomov } 17250bbfdfe8SIlya Dryomov 17265aea3dcdSIlya Dryomov static void account_request(struct ceph_osd_request *req) 17275aea3dcdSIlya Dryomov { 172854ea0046SIlya Dryomov WARN_ON(req->r_flags & (CEPH_OSD_FLAG_ACK | CEPH_OSD_FLAG_ONDISK)); 1729b18b9550SIlya Dryomov WARN_ON(!(req->r_flags & (CEPH_OSD_FLAG_READ | CEPH_OSD_FLAG_WRITE))); 17305aea3dcdSIlya Dryomov 1731b18b9550SIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_ONDISK; 17325aea3dcdSIlya Dryomov atomic_inc(&req->r_osdc->num_requests); 17337cc5e38fSIlya Dryomov 17347cc5e38fSIlya Dryomov req->r_start_stamp = jiffies; 17355aea3dcdSIlya Dryomov } 17365aea3dcdSIlya Dryomov 17375aea3dcdSIlya Dryomov static void submit_request(struct ceph_osd_request *req, bool wrlocked) 17385aea3dcdSIlya Dryomov { 17395aea3dcdSIlya Dryomov ceph_osdc_get_request(req); 17405aea3dcdSIlya Dryomov account_request(req); 17415aea3dcdSIlya Dryomov __submit_request(req, wrlocked); 17425aea3dcdSIlya Dryomov } 17435aea3dcdSIlya Dryomov 174445ee2c1dSIlya Dryomov static void finish_request(struct ceph_osd_request *req) 17455aea3dcdSIlya Dryomov { 17465aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 17475aea3dcdSIlya Dryomov struct ceph_osd *osd = req->r_osd; 17485aea3dcdSIlya Dryomov 17495aea3dcdSIlya Dryomov verify_osd_locked(osd); 17505aea3dcdSIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 17515aea3dcdSIlya Dryomov 17524609245eSIlya Dryomov WARN_ON(lookup_request_mc(&osdc->map_checks, req->r_tid)); 17535aea3dcdSIlya Dryomov unlink_request(osd, req); 17545aea3dcdSIlya Dryomov atomic_dec(&osdc->num_requests); 17555aea3dcdSIlya Dryomov 17565aea3dcdSIlya Dryomov /* 17575aea3dcdSIlya Dryomov * If an OSD has failed or returned and a request has been sent 17585aea3dcdSIlya Dryomov * twice, it's possible to get a reply and end up here while the 17595aea3dcdSIlya Dryomov * request message is queued for delivery. We will ignore the 17605aea3dcdSIlya Dryomov * reply, so not a big deal, but better to try and catch it. 17615aea3dcdSIlya Dryomov */ 17625aea3dcdSIlya Dryomov ceph_msg_revoke(req->r_request); 17635aea3dcdSIlya Dryomov ceph_msg_revoke_incoming(req->r_reply); 17645aea3dcdSIlya Dryomov } 17655aea3dcdSIlya Dryomov 1766fe5da05eSIlya Dryomov static void __complete_request(struct ceph_osd_request *req) 1767fe5da05eSIlya Dryomov { 1768b18b9550SIlya Dryomov if (req->r_callback) { 1769b18b9550SIlya Dryomov dout("%s req %p tid %llu cb %pf result %d\n", __func__, req, 1770b18b9550SIlya Dryomov req->r_tid, req->r_callback, req->r_result); 1771fe5da05eSIlya Dryomov req->r_callback(req); 1772b18b9550SIlya Dryomov } 1773fe5da05eSIlya Dryomov } 1774fe5da05eSIlya Dryomov 17754609245eSIlya Dryomov /* 1776b18b9550SIlya Dryomov * This is open-coded in handle_reply(). 17774609245eSIlya Dryomov */ 17784609245eSIlya Dryomov static void complete_request(struct ceph_osd_request *req, int err) 17794609245eSIlya Dryomov { 17804609245eSIlya Dryomov dout("%s req %p tid %llu err %d\n", __func__, req, req->r_tid, err); 17814609245eSIlya Dryomov 17824609245eSIlya Dryomov req->r_result = err; 178345ee2c1dSIlya Dryomov finish_request(req); 17844609245eSIlya Dryomov __complete_request(req); 1785b18b9550SIlya Dryomov complete_all(&req->r_completion); 17864609245eSIlya Dryomov ceph_osdc_put_request(req); 17874609245eSIlya Dryomov } 17884609245eSIlya Dryomov 17894609245eSIlya Dryomov static void cancel_map_check(struct ceph_osd_request *req) 17904609245eSIlya Dryomov { 17914609245eSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 17924609245eSIlya Dryomov struct ceph_osd_request *lookup_req; 17934609245eSIlya Dryomov 17944609245eSIlya Dryomov verify_osdc_wrlocked(osdc); 17954609245eSIlya Dryomov 17964609245eSIlya Dryomov lookup_req = lookup_request_mc(&osdc->map_checks, req->r_tid); 17974609245eSIlya Dryomov if (!lookup_req) 17984609245eSIlya Dryomov return; 17994609245eSIlya Dryomov 18004609245eSIlya Dryomov WARN_ON(lookup_req != req); 18014609245eSIlya Dryomov erase_request_mc(&osdc->map_checks, req); 18024609245eSIlya Dryomov ceph_osdc_put_request(req); 18034609245eSIlya Dryomov } 18044609245eSIlya Dryomov 18055aea3dcdSIlya Dryomov static void cancel_request(struct ceph_osd_request *req) 18065aea3dcdSIlya Dryomov { 18075aea3dcdSIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 18085aea3dcdSIlya Dryomov 18094609245eSIlya Dryomov cancel_map_check(req); 181045ee2c1dSIlya Dryomov finish_request(req); 1811b18b9550SIlya Dryomov complete_all(&req->r_completion); 1812c297eb42SIlya Dryomov ceph_osdc_put_request(req); 18135aea3dcdSIlya Dryomov } 18145aea3dcdSIlya Dryomov 18157cc5e38fSIlya Dryomov static void abort_request(struct ceph_osd_request *req, int err) 18167cc5e38fSIlya Dryomov { 18177cc5e38fSIlya Dryomov dout("%s req %p tid %llu err %d\n", __func__, req, req->r_tid, err); 18187cc5e38fSIlya Dryomov 18197cc5e38fSIlya Dryomov cancel_map_check(req); 18207cc5e38fSIlya Dryomov complete_request(req, err); 18217cc5e38fSIlya Dryomov } 18227cc5e38fSIlya Dryomov 182358eb7932SJeff Layton static void update_epoch_barrier(struct ceph_osd_client *osdc, u32 eb) 182458eb7932SJeff Layton { 182558eb7932SJeff Layton if (likely(eb > osdc->epoch_barrier)) { 182658eb7932SJeff Layton dout("updating epoch_barrier from %u to %u\n", 182758eb7932SJeff Layton osdc->epoch_barrier, eb); 182858eb7932SJeff Layton osdc->epoch_barrier = eb; 182958eb7932SJeff Layton /* Request map if we're not to the barrier yet */ 183058eb7932SJeff Layton if (eb > osdc->osdmap->epoch) 183158eb7932SJeff Layton maybe_request_map(osdc); 183258eb7932SJeff Layton } 183358eb7932SJeff Layton } 183458eb7932SJeff Layton 183558eb7932SJeff Layton void ceph_osdc_update_epoch_barrier(struct ceph_osd_client *osdc, u32 eb) 183658eb7932SJeff Layton { 183758eb7932SJeff Layton down_read(&osdc->lock); 183858eb7932SJeff Layton if (unlikely(eb > osdc->epoch_barrier)) { 183958eb7932SJeff Layton up_read(&osdc->lock); 184058eb7932SJeff Layton down_write(&osdc->lock); 184158eb7932SJeff Layton update_epoch_barrier(osdc, eb); 184258eb7932SJeff Layton up_write(&osdc->lock); 184358eb7932SJeff Layton } else { 184458eb7932SJeff Layton up_read(&osdc->lock); 184558eb7932SJeff Layton } 184658eb7932SJeff Layton } 184758eb7932SJeff Layton EXPORT_SYMBOL(ceph_osdc_update_epoch_barrier); 184858eb7932SJeff Layton 1849fc36d0a4SJeff Layton /* 1850fc36d0a4SJeff Layton * Drop all pending requests that are stalled waiting on a full condition to 185158eb7932SJeff Layton * clear, and complete them with ENOSPC as the return code. Set the 185258eb7932SJeff Layton * osdc->epoch_barrier to the latest map epoch that we've seen if any were 185358eb7932SJeff Layton * cancelled. 1854fc36d0a4SJeff Layton */ 1855fc36d0a4SJeff Layton static void ceph_osdc_abort_on_full(struct ceph_osd_client *osdc) 1856fc36d0a4SJeff Layton { 1857fc36d0a4SJeff Layton struct rb_node *n; 185858eb7932SJeff Layton bool victims = false; 1859fc36d0a4SJeff Layton 1860fc36d0a4SJeff Layton dout("enter abort_on_full\n"); 1861fc36d0a4SJeff Layton 1862fc36d0a4SJeff Layton if (!ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) && !have_pool_full(osdc)) 1863fc36d0a4SJeff Layton goto out; 1864fc36d0a4SJeff Layton 186558eb7932SJeff Layton /* Scan list and see if there is anything to abort */ 186658eb7932SJeff Layton for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { 186758eb7932SJeff Layton struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 186858eb7932SJeff Layton struct rb_node *m; 186958eb7932SJeff Layton 187058eb7932SJeff Layton m = rb_first(&osd->o_requests); 187158eb7932SJeff Layton while (m) { 187258eb7932SJeff Layton struct ceph_osd_request *req = rb_entry(m, 187358eb7932SJeff Layton struct ceph_osd_request, r_node); 187458eb7932SJeff Layton m = rb_next(m); 187558eb7932SJeff Layton 187658eb7932SJeff Layton if (req->r_abort_on_full) { 187758eb7932SJeff Layton victims = true; 187858eb7932SJeff Layton break; 187958eb7932SJeff Layton } 188058eb7932SJeff Layton } 188158eb7932SJeff Layton if (victims) 188258eb7932SJeff Layton break; 188358eb7932SJeff Layton } 188458eb7932SJeff Layton 188558eb7932SJeff Layton if (!victims) 188658eb7932SJeff Layton goto out; 188758eb7932SJeff Layton 188858eb7932SJeff Layton /* 188958eb7932SJeff Layton * Update the barrier to current epoch if it's behind that point, 189058eb7932SJeff Layton * since we know we have some calls to be aborted in the tree. 189158eb7932SJeff Layton */ 189258eb7932SJeff Layton update_epoch_barrier(osdc, osdc->osdmap->epoch); 189358eb7932SJeff Layton 1894fc36d0a4SJeff Layton for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { 1895fc36d0a4SJeff Layton struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 1896fc36d0a4SJeff Layton struct rb_node *m; 1897fc36d0a4SJeff Layton 1898fc36d0a4SJeff Layton m = rb_first(&osd->o_requests); 1899fc36d0a4SJeff Layton while (m) { 1900fc36d0a4SJeff Layton struct ceph_osd_request *req = rb_entry(m, 1901fc36d0a4SJeff Layton struct ceph_osd_request, r_node); 1902fc36d0a4SJeff Layton m = rb_next(m); 1903fc36d0a4SJeff Layton 1904fc36d0a4SJeff Layton if (req->r_abort_on_full && 1905fc36d0a4SJeff Layton (ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || 1906fc36d0a4SJeff Layton pool_full(osdc, req->r_t.target_oloc.pool))) 1907fc36d0a4SJeff Layton abort_request(req, -ENOSPC); 1908fc36d0a4SJeff Layton } 1909fc36d0a4SJeff Layton } 1910fc36d0a4SJeff Layton out: 191158eb7932SJeff Layton dout("return abort_on_full barrier=%u\n", osdc->epoch_barrier); 1912fc36d0a4SJeff Layton } 1913fc36d0a4SJeff Layton 19144609245eSIlya Dryomov static void check_pool_dne(struct ceph_osd_request *req) 19154609245eSIlya Dryomov { 19164609245eSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 19174609245eSIlya Dryomov struct ceph_osdmap *map = osdc->osdmap; 19184609245eSIlya Dryomov 19194609245eSIlya Dryomov verify_osdc_wrlocked(osdc); 19204609245eSIlya Dryomov WARN_ON(!map->epoch); 19214609245eSIlya Dryomov 19224609245eSIlya Dryomov if (req->r_attempts) { 19234609245eSIlya Dryomov /* 19244609245eSIlya Dryomov * We sent a request earlier, which means that 19254609245eSIlya Dryomov * previously the pool existed, and now it does not 19264609245eSIlya Dryomov * (i.e., it was deleted). 19274609245eSIlya Dryomov */ 19284609245eSIlya Dryomov req->r_map_dne_bound = map->epoch; 19294609245eSIlya Dryomov dout("%s req %p tid %llu pool disappeared\n", __func__, req, 19304609245eSIlya Dryomov req->r_tid); 19314609245eSIlya Dryomov } else { 19324609245eSIlya Dryomov dout("%s req %p tid %llu map_dne_bound %u have %u\n", __func__, 19334609245eSIlya Dryomov req, req->r_tid, req->r_map_dne_bound, map->epoch); 19344609245eSIlya Dryomov } 19354609245eSIlya Dryomov 19364609245eSIlya Dryomov if (req->r_map_dne_bound) { 19374609245eSIlya Dryomov if (map->epoch >= req->r_map_dne_bound) { 19384609245eSIlya Dryomov /* we had a new enough map */ 19394609245eSIlya Dryomov pr_info_ratelimited("tid %llu pool does not exist\n", 19404609245eSIlya Dryomov req->r_tid); 19414609245eSIlya Dryomov complete_request(req, -ENOENT); 19424609245eSIlya Dryomov } 19434609245eSIlya Dryomov } else { 19444609245eSIlya Dryomov send_map_check(req); 19454609245eSIlya Dryomov } 19464609245eSIlya Dryomov } 19474609245eSIlya Dryomov 19484609245eSIlya Dryomov static void map_check_cb(struct ceph_mon_generic_request *greq) 19494609245eSIlya Dryomov { 19504609245eSIlya Dryomov struct ceph_osd_client *osdc = &greq->monc->client->osdc; 19514609245eSIlya Dryomov struct ceph_osd_request *req; 19524609245eSIlya Dryomov u64 tid = greq->private_data; 19534609245eSIlya Dryomov 19544609245eSIlya Dryomov WARN_ON(greq->result || !greq->u.newest); 19554609245eSIlya Dryomov 19564609245eSIlya Dryomov down_write(&osdc->lock); 19574609245eSIlya Dryomov req = lookup_request_mc(&osdc->map_checks, tid); 19584609245eSIlya Dryomov if (!req) { 19594609245eSIlya Dryomov dout("%s tid %llu dne\n", __func__, tid); 19604609245eSIlya Dryomov goto out_unlock; 19614609245eSIlya Dryomov } 19624609245eSIlya Dryomov 19634609245eSIlya Dryomov dout("%s req %p tid %llu map_dne_bound %u newest %llu\n", __func__, 19644609245eSIlya Dryomov req, req->r_tid, req->r_map_dne_bound, greq->u.newest); 19654609245eSIlya Dryomov if (!req->r_map_dne_bound) 19664609245eSIlya Dryomov req->r_map_dne_bound = greq->u.newest; 19674609245eSIlya Dryomov erase_request_mc(&osdc->map_checks, req); 19684609245eSIlya Dryomov check_pool_dne(req); 19694609245eSIlya Dryomov 19704609245eSIlya Dryomov ceph_osdc_put_request(req); 19714609245eSIlya Dryomov out_unlock: 19724609245eSIlya Dryomov up_write(&osdc->lock); 19734609245eSIlya Dryomov } 19744609245eSIlya Dryomov 19754609245eSIlya Dryomov static void send_map_check(struct ceph_osd_request *req) 19764609245eSIlya Dryomov { 19774609245eSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 19784609245eSIlya Dryomov struct ceph_osd_request *lookup_req; 19794609245eSIlya Dryomov int ret; 19804609245eSIlya Dryomov 19814609245eSIlya Dryomov verify_osdc_wrlocked(osdc); 19824609245eSIlya Dryomov 19834609245eSIlya Dryomov lookup_req = lookup_request_mc(&osdc->map_checks, req->r_tid); 19844609245eSIlya Dryomov if (lookup_req) { 19854609245eSIlya Dryomov WARN_ON(lookup_req != req); 19864609245eSIlya Dryomov return; 19874609245eSIlya Dryomov } 19884609245eSIlya Dryomov 19894609245eSIlya Dryomov ceph_osdc_get_request(req); 19904609245eSIlya Dryomov insert_request_mc(&osdc->map_checks, req); 19914609245eSIlya Dryomov ret = ceph_monc_get_version_async(&osdc->client->monc, "osdmap", 19924609245eSIlya Dryomov map_check_cb, req->r_tid); 19934609245eSIlya Dryomov WARN_ON(ret); 19944609245eSIlya Dryomov } 19954609245eSIlya Dryomov 19960bbfdfe8SIlya Dryomov /* 1997922dab61SIlya Dryomov * lingering requests, watch/notify v2 infrastructure 1998922dab61SIlya Dryomov */ 1999922dab61SIlya Dryomov static void linger_release(struct kref *kref) 2000922dab61SIlya Dryomov { 2001922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = 2002922dab61SIlya Dryomov container_of(kref, struct ceph_osd_linger_request, kref); 2003922dab61SIlya Dryomov 2004922dab61SIlya Dryomov dout("%s lreq %p reg_req %p ping_req %p\n", __func__, lreq, 2005922dab61SIlya Dryomov lreq->reg_req, lreq->ping_req); 2006922dab61SIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&lreq->node)); 2007922dab61SIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&lreq->osdc_node)); 20084609245eSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&lreq->mc_node)); 2009922dab61SIlya Dryomov WARN_ON(!list_empty(&lreq->scan_item)); 2010b07d3c4bSIlya Dryomov WARN_ON(!list_empty(&lreq->pending_lworks)); 2011922dab61SIlya Dryomov WARN_ON(lreq->osd); 2012922dab61SIlya Dryomov 2013922dab61SIlya Dryomov if (lreq->reg_req) 2014922dab61SIlya Dryomov ceph_osdc_put_request(lreq->reg_req); 2015922dab61SIlya Dryomov if (lreq->ping_req) 2016922dab61SIlya Dryomov ceph_osdc_put_request(lreq->ping_req); 2017922dab61SIlya Dryomov target_destroy(&lreq->t); 2018922dab61SIlya Dryomov kfree(lreq); 2019922dab61SIlya Dryomov } 2020922dab61SIlya Dryomov 2021922dab61SIlya Dryomov static void linger_put(struct ceph_osd_linger_request *lreq) 2022922dab61SIlya Dryomov { 2023922dab61SIlya Dryomov if (lreq) 2024922dab61SIlya Dryomov kref_put(&lreq->kref, linger_release); 2025922dab61SIlya Dryomov } 2026922dab61SIlya Dryomov 2027922dab61SIlya Dryomov static struct ceph_osd_linger_request * 2028922dab61SIlya Dryomov linger_get(struct ceph_osd_linger_request *lreq) 2029922dab61SIlya Dryomov { 2030922dab61SIlya Dryomov kref_get(&lreq->kref); 2031922dab61SIlya Dryomov return lreq; 2032922dab61SIlya Dryomov } 2033922dab61SIlya Dryomov 2034922dab61SIlya Dryomov static struct ceph_osd_linger_request * 2035922dab61SIlya Dryomov linger_alloc(struct ceph_osd_client *osdc) 2036922dab61SIlya Dryomov { 2037922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq; 2038922dab61SIlya Dryomov 2039922dab61SIlya Dryomov lreq = kzalloc(sizeof(*lreq), GFP_NOIO); 2040922dab61SIlya Dryomov if (!lreq) 2041922dab61SIlya Dryomov return NULL; 2042922dab61SIlya Dryomov 2043922dab61SIlya Dryomov kref_init(&lreq->kref); 2044922dab61SIlya Dryomov mutex_init(&lreq->lock); 2045922dab61SIlya Dryomov RB_CLEAR_NODE(&lreq->node); 2046922dab61SIlya Dryomov RB_CLEAR_NODE(&lreq->osdc_node); 20474609245eSIlya Dryomov RB_CLEAR_NODE(&lreq->mc_node); 2048922dab61SIlya Dryomov INIT_LIST_HEAD(&lreq->scan_item); 2049b07d3c4bSIlya Dryomov INIT_LIST_HEAD(&lreq->pending_lworks); 2050922dab61SIlya Dryomov init_completion(&lreq->reg_commit_wait); 205119079203SIlya Dryomov init_completion(&lreq->notify_finish_wait); 2052922dab61SIlya Dryomov 2053922dab61SIlya Dryomov lreq->osdc = osdc; 2054922dab61SIlya Dryomov target_init(&lreq->t); 2055922dab61SIlya Dryomov 2056922dab61SIlya Dryomov dout("%s lreq %p\n", __func__, lreq); 2057922dab61SIlya Dryomov return lreq; 2058922dab61SIlya Dryomov } 2059922dab61SIlya Dryomov 2060922dab61SIlya Dryomov DEFINE_RB_INSDEL_FUNCS(linger, struct ceph_osd_linger_request, linger_id, node) 2061922dab61SIlya Dryomov DEFINE_RB_FUNCS(linger_osdc, struct ceph_osd_linger_request, linger_id, osdc_node) 20624609245eSIlya Dryomov DEFINE_RB_FUNCS(linger_mc, struct ceph_osd_linger_request, linger_id, mc_node) 2063922dab61SIlya Dryomov 2064922dab61SIlya Dryomov /* 2065922dab61SIlya Dryomov * Create linger request <-> OSD session relation. 2066922dab61SIlya Dryomov * 2067922dab61SIlya Dryomov * @lreq has to be registered, @osd may be homeless. 2068922dab61SIlya Dryomov */ 2069922dab61SIlya Dryomov static void link_linger(struct ceph_osd *osd, 2070922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq) 2071922dab61SIlya Dryomov { 2072922dab61SIlya Dryomov verify_osd_locked(osd); 2073922dab61SIlya Dryomov WARN_ON(!lreq->linger_id || lreq->osd); 2074922dab61SIlya Dryomov dout("%s osd %p osd%d lreq %p linger_id %llu\n", __func__, osd, 2075922dab61SIlya Dryomov osd->o_osd, lreq, lreq->linger_id); 2076922dab61SIlya Dryomov 2077922dab61SIlya Dryomov if (!osd_homeless(osd)) 2078922dab61SIlya Dryomov __remove_osd_from_lru(osd); 2079922dab61SIlya Dryomov else 2080922dab61SIlya Dryomov atomic_inc(&osd->o_osdc->num_homeless); 2081922dab61SIlya Dryomov 2082922dab61SIlya Dryomov get_osd(osd); 2083922dab61SIlya Dryomov insert_linger(&osd->o_linger_requests, lreq); 2084922dab61SIlya Dryomov lreq->osd = osd; 2085922dab61SIlya Dryomov } 2086922dab61SIlya Dryomov 2087922dab61SIlya Dryomov static void unlink_linger(struct ceph_osd *osd, 2088922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq) 2089922dab61SIlya Dryomov { 2090922dab61SIlya Dryomov verify_osd_locked(osd); 2091922dab61SIlya Dryomov WARN_ON(lreq->osd != osd); 2092922dab61SIlya Dryomov dout("%s osd %p osd%d lreq %p linger_id %llu\n", __func__, osd, 2093922dab61SIlya Dryomov osd->o_osd, lreq, lreq->linger_id); 2094922dab61SIlya Dryomov 2095922dab61SIlya Dryomov lreq->osd = NULL; 2096922dab61SIlya Dryomov erase_linger(&osd->o_linger_requests, lreq); 2097922dab61SIlya Dryomov put_osd(osd); 2098922dab61SIlya Dryomov 2099922dab61SIlya Dryomov if (!osd_homeless(osd)) 2100922dab61SIlya Dryomov maybe_move_osd_to_lru(osd); 2101922dab61SIlya Dryomov else 2102922dab61SIlya Dryomov atomic_dec(&osd->o_osdc->num_homeless); 2103922dab61SIlya Dryomov } 2104922dab61SIlya Dryomov 2105922dab61SIlya Dryomov static bool __linger_registered(struct ceph_osd_linger_request *lreq) 2106922dab61SIlya Dryomov { 2107922dab61SIlya Dryomov verify_osdc_locked(lreq->osdc); 2108922dab61SIlya Dryomov 2109922dab61SIlya Dryomov return !RB_EMPTY_NODE(&lreq->osdc_node); 2110922dab61SIlya Dryomov } 2111922dab61SIlya Dryomov 2112922dab61SIlya Dryomov static bool linger_registered(struct ceph_osd_linger_request *lreq) 2113922dab61SIlya Dryomov { 2114922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 2115922dab61SIlya Dryomov bool registered; 2116922dab61SIlya Dryomov 2117922dab61SIlya Dryomov down_read(&osdc->lock); 2118922dab61SIlya Dryomov registered = __linger_registered(lreq); 2119922dab61SIlya Dryomov up_read(&osdc->lock); 2120922dab61SIlya Dryomov 2121922dab61SIlya Dryomov return registered; 2122922dab61SIlya Dryomov } 2123922dab61SIlya Dryomov 2124922dab61SIlya Dryomov static void linger_register(struct ceph_osd_linger_request *lreq) 2125922dab61SIlya Dryomov { 2126922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 2127922dab61SIlya Dryomov 2128922dab61SIlya Dryomov verify_osdc_wrlocked(osdc); 2129922dab61SIlya Dryomov WARN_ON(lreq->linger_id); 2130922dab61SIlya Dryomov 2131922dab61SIlya Dryomov linger_get(lreq); 2132922dab61SIlya Dryomov lreq->linger_id = ++osdc->last_linger_id; 2133922dab61SIlya Dryomov insert_linger_osdc(&osdc->linger_requests, lreq); 2134922dab61SIlya Dryomov } 2135922dab61SIlya Dryomov 2136922dab61SIlya Dryomov static void linger_unregister(struct ceph_osd_linger_request *lreq) 2137922dab61SIlya Dryomov { 2138922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 2139922dab61SIlya Dryomov 2140922dab61SIlya Dryomov verify_osdc_wrlocked(osdc); 2141922dab61SIlya Dryomov 2142922dab61SIlya Dryomov erase_linger_osdc(&osdc->linger_requests, lreq); 2143922dab61SIlya Dryomov linger_put(lreq); 2144922dab61SIlya Dryomov } 2145922dab61SIlya Dryomov 2146922dab61SIlya Dryomov static void cancel_linger_request(struct ceph_osd_request *req) 2147922dab61SIlya Dryomov { 2148922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = req->r_priv; 2149922dab61SIlya Dryomov 2150922dab61SIlya Dryomov WARN_ON(!req->r_linger); 2151922dab61SIlya Dryomov cancel_request(req); 2152922dab61SIlya Dryomov linger_put(lreq); 2153922dab61SIlya Dryomov } 2154922dab61SIlya Dryomov 2155922dab61SIlya Dryomov struct linger_work { 2156922dab61SIlya Dryomov struct work_struct work; 2157922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq; 2158b07d3c4bSIlya Dryomov struct list_head pending_item; 2159b07d3c4bSIlya Dryomov unsigned long queued_stamp; 2160922dab61SIlya Dryomov 2161922dab61SIlya Dryomov union { 2162922dab61SIlya Dryomov struct { 2163922dab61SIlya Dryomov u64 notify_id; 2164922dab61SIlya Dryomov u64 notifier_id; 2165922dab61SIlya Dryomov void *payload; /* points into @msg front */ 2166922dab61SIlya Dryomov size_t payload_len; 2167922dab61SIlya Dryomov 2168922dab61SIlya Dryomov struct ceph_msg *msg; /* for ceph_msg_put() */ 2169922dab61SIlya Dryomov } notify; 2170922dab61SIlya Dryomov struct { 2171922dab61SIlya Dryomov int err; 2172922dab61SIlya Dryomov } error; 2173922dab61SIlya Dryomov }; 2174922dab61SIlya Dryomov }; 2175922dab61SIlya Dryomov 2176922dab61SIlya Dryomov static struct linger_work *lwork_alloc(struct ceph_osd_linger_request *lreq, 2177922dab61SIlya Dryomov work_func_t workfn) 2178922dab61SIlya Dryomov { 2179922dab61SIlya Dryomov struct linger_work *lwork; 2180922dab61SIlya Dryomov 2181922dab61SIlya Dryomov lwork = kzalloc(sizeof(*lwork), GFP_NOIO); 2182922dab61SIlya Dryomov if (!lwork) 2183922dab61SIlya Dryomov return NULL; 2184922dab61SIlya Dryomov 2185922dab61SIlya Dryomov INIT_WORK(&lwork->work, workfn); 2186b07d3c4bSIlya Dryomov INIT_LIST_HEAD(&lwork->pending_item); 2187922dab61SIlya Dryomov lwork->lreq = linger_get(lreq); 2188922dab61SIlya Dryomov 2189922dab61SIlya Dryomov return lwork; 2190922dab61SIlya Dryomov } 2191922dab61SIlya Dryomov 2192922dab61SIlya Dryomov static void lwork_free(struct linger_work *lwork) 2193922dab61SIlya Dryomov { 2194922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = lwork->lreq; 2195922dab61SIlya Dryomov 2196b07d3c4bSIlya Dryomov mutex_lock(&lreq->lock); 2197b07d3c4bSIlya Dryomov list_del(&lwork->pending_item); 2198b07d3c4bSIlya Dryomov mutex_unlock(&lreq->lock); 2199b07d3c4bSIlya Dryomov 2200922dab61SIlya Dryomov linger_put(lreq); 2201922dab61SIlya Dryomov kfree(lwork); 2202922dab61SIlya Dryomov } 2203922dab61SIlya Dryomov 2204922dab61SIlya Dryomov static void lwork_queue(struct linger_work *lwork) 2205922dab61SIlya Dryomov { 2206922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = lwork->lreq; 2207922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 2208922dab61SIlya Dryomov 2209922dab61SIlya Dryomov verify_lreq_locked(lreq); 2210b07d3c4bSIlya Dryomov WARN_ON(!list_empty(&lwork->pending_item)); 2211b07d3c4bSIlya Dryomov 2212b07d3c4bSIlya Dryomov lwork->queued_stamp = jiffies; 2213b07d3c4bSIlya Dryomov list_add_tail(&lwork->pending_item, &lreq->pending_lworks); 2214922dab61SIlya Dryomov queue_work(osdc->notify_wq, &lwork->work); 2215922dab61SIlya Dryomov } 2216922dab61SIlya Dryomov 2217922dab61SIlya Dryomov static void do_watch_notify(struct work_struct *w) 2218922dab61SIlya Dryomov { 2219922dab61SIlya Dryomov struct linger_work *lwork = container_of(w, struct linger_work, work); 2220922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = lwork->lreq; 2221922dab61SIlya Dryomov 2222922dab61SIlya Dryomov if (!linger_registered(lreq)) { 2223922dab61SIlya Dryomov dout("%s lreq %p not registered\n", __func__, lreq); 2224922dab61SIlya Dryomov goto out; 2225922dab61SIlya Dryomov } 2226922dab61SIlya Dryomov 222719079203SIlya Dryomov WARN_ON(!lreq->is_watch); 2228922dab61SIlya Dryomov dout("%s lreq %p notify_id %llu notifier_id %llu payload_len %zu\n", 2229922dab61SIlya Dryomov __func__, lreq, lwork->notify.notify_id, lwork->notify.notifier_id, 2230922dab61SIlya Dryomov lwork->notify.payload_len); 2231922dab61SIlya Dryomov lreq->wcb(lreq->data, lwork->notify.notify_id, lreq->linger_id, 2232922dab61SIlya Dryomov lwork->notify.notifier_id, lwork->notify.payload, 2233922dab61SIlya Dryomov lwork->notify.payload_len); 2234922dab61SIlya Dryomov 2235922dab61SIlya Dryomov out: 2236922dab61SIlya Dryomov ceph_msg_put(lwork->notify.msg); 2237922dab61SIlya Dryomov lwork_free(lwork); 2238922dab61SIlya Dryomov } 2239922dab61SIlya Dryomov 2240922dab61SIlya Dryomov static void do_watch_error(struct work_struct *w) 2241922dab61SIlya Dryomov { 2242922dab61SIlya Dryomov struct linger_work *lwork = container_of(w, struct linger_work, work); 2243922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = lwork->lreq; 2244922dab61SIlya Dryomov 2245922dab61SIlya Dryomov if (!linger_registered(lreq)) { 2246922dab61SIlya Dryomov dout("%s lreq %p not registered\n", __func__, lreq); 2247922dab61SIlya Dryomov goto out; 2248922dab61SIlya Dryomov } 2249922dab61SIlya Dryomov 2250922dab61SIlya Dryomov dout("%s lreq %p err %d\n", __func__, lreq, lwork->error.err); 2251922dab61SIlya Dryomov lreq->errcb(lreq->data, lreq->linger_id, lwork->error.err); 2252922dab61SIlya Dryomov 2253922dab61SIlya Dryomov out: 2254922dab61SIlya Dryomov lwork_free(lwork); 2255922dab61SIlya Dryomov } 2256922dab61SIlya Dryomov 2257922dab61SIlya Dryomov static void queue_watch_error(struct ceph_osd_linger_request *lreq) 2258922dab61SIlya Dryomov { 2259922dab61SIlya Dryomov struct linger_work *lwork; 2260922dab61SIlya Dryomov 2261922dab61SIlya Dryomov lwork = lwork_alloc(lreq, do_watch_error); 2262922dab61SIlya Dryomov if (!lwork) { 2263922dab61SIlya Dryomov pr_err("failed to allocate error-lwork\n"); 2264922dab61SIlya Dryomov return; 2265922dab61SIlya Dryomov } 2266922dab61SIlya Dryomov 2267922dab61SIlya Dryomov lwork->error.err = lreq->last_error; 2268922dab61SIlya Dryomov lwork_queue(lwork); 2269922dab61SIlya Dryomov } 2270922dab61SIlya Dryomov 2271922dab61SIlya Dryomov static void linger_reg_commit_complete(struct ceph_osd_linger_request *lreq, 2272922dab61SIlya Dryomov int result) 2273922dab61SIlya Dryomov { 2274922dab61SIlya Dryomov if (!completion_done(&lreq->reg_commit_wait)) { 2275922dab61SIlya Dryomov lreq->reg_commit_error = (result <= 0 ? result : 0); 2276922dab61SIlya Dryomov complete_all(&lreq->reg_commit_wait); 2277922dab61SIlya Dryomov } 2278922dab61SIlya Dryomov } 2279922dab61SIlya Dryomov 2280922dab61SIlya Dryomov static void linger_commit_cb(struct ceph_osd_request *req) 2281922dab61SIlya Dryomov { 2282922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = req->r_priv; 2283922dab61SIlya Dryomov 2284922dab61SIlya Dryomov mutex_lock(&lreq->lock); 2285922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu result %d\n", __func__, lreq, 2286922dab61SIlya Dryomov lreq->linger_id, req->r_result); 2287922dab61SIlya Dryomov linger_reg_commit_complete(lreq, req->r_result); 2288922dab61SIlya Dryomov lreq->committed = true; 2289922dab61SIlya Dryomov 229019079203SIlya Dryomov if (!lreq->is_watch) { 229119079203SIlya Dryomov struct ceph_osd_data *osd_data = 229219079203SIlya Dryomov osd_req_op_data(req, 0, notify, response_data); 229319079203SIlya Dryomov void *p = page_address(osd_data->pages[0]); 229419079203SIlya Dryomov 229519079203SIlya Dryomov WARN_ON(req->r_ops[0].op != CEPH_OSD_OP_NOTIFY || 229619079203SIlya Dryomov osd_data->type != CEPH_OSD_DATA_TYPE_PAGES); 229719079203SIlya Dryomov 229819079203SIlya Dryomov /* make note of the notify_id */ 229919079203SIlya Dryomov if (req->r_ops[0].outdata_len >= sizeof(u64)) { 230019079203SIlya Dryomov lreq->notify_id = ceph_decode_64(&p); 230119079203SIlya Dryomov dout("lreq %p notify_id %llu\n", lreq, 230219079203SIlya Dryomov lreq->notify_id); 230319079203SIlya Dryomov } else { 230419079203SIlya Dryomov dout("lreq %p no notify_id\n", lreq); 230519079203SIlya Dryomov } 230619079203SIlya Dryomov } 230719079203SIlya Dryomov 2308922dab61SIlya Dryomov mutex_unlock(&lreq->lock); 2309922dab61SIlya Dryomov linger_put(lreq); 2310922dab61SIlya Dryomov } 2311922dab61SIlya Dryomov 2312922dab61SIlya Dryomov static int normalize_watch_error(int err) 2313922dab61SIlya Dryomov { 2314922dab61SIlya Dryomov /* 2315922dab61SIlya Dryomov * Translate ENOENT -> ENOTCONN so that a delete->disconnection 2316922dab61SIlya Dryomov * notification and a failure to reconnect because we raced with 2317922dab61SIlya Dryomov * the delete appear the same to the user. 2318922dab61SIlya Dryomov */ 2319922dab61SIlya Dryomov if (err == -ENOENT) 2320922dab61SIlya Dryomov err = -ENOTCONN; 2321922dab61SIlya Dryomov 2322922dab61SIlya Dryomov return err; 2323922dab61SIlya Dryomov } 2324922dab61SIlya Dryomov 2325922dab61SIlya Dryomov static void linger_reconnect_cb(struct ceph_osd_request *req) 2326922dab61SIlya Dryomov { 2327922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = req->r_priv; 2328922dab61SIlya Dryomov 2329922dab61SIlya Dryomov mutex_lock(&lreq->lock); 2330922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu result %d last_error %d\n", __func__, 2331922dab61SIlya Dryomov lreq, lreq->linger_id, req->r_result, lreq->last_error); 2332922dab61SIlya Dryomov if (req->r_result < 0) { 2333922dab61SIlya Dryomov if (!lreq->last_error) { 2334922dab61SIlya Dryomov lreq->last_error = normalize_watch_error(req->r_result); 2335922dab61SIlya Dryomov queue_watch_error(lreq); 2336922dab61SIlya Dryomov } 2337922dab61SIlya Dryomov } 2338922dab61SIlya Dryomov 2339922dab61SIlya Dryomov mutex_unlock(&lreq->lock); 2340922dab61SIlya Dryomov linger_put(lreq); 2341922dab61SIlya Dryomov } 2342922dab61SIlya Dryomov 2343922dab61SIlya Dryomov static void send_linger(struct ceph_osd_linger_request *lreq) 2344922dab61SIlya Dryomov { 2345922dab61SIlya Dryomov struct ceph_osd_request *req = lreq->reg_req; 2346922dab61SIlya Dryomov struct ceph_osd_req_op *op = &req->r_ops[0]; 2347922dab61SIlya Dryomov 2348922dab61SIlya Dryomov verify_osdc_wrlocked(req->r_osdc); 2349922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu\n", __func__, lreq, lreq->linger_id); 2350922dab61SIlya Dryomov 2351922dab61SIlya Dryomov if (req->r_osd) 2352922dab61SIlya Dryomov cancel_linger_request(req); 2353922dab61SIlya Dryomov 2354922dab61SIlya Dryomov request_reinit(req); 2355922dab61SIlya Dryomov ceph_oid_copy(&req->r_base_oid, &lreq->t.base_oid); 2356922dab61SIlya Dryomov ceph_oloc_copy(&req->r_base_oloc, &lreq->t.base_oloc); 2357922dab61SIlya Dryomov req->r_flags = lreq->t.flags; 2358922dab61SIlya Dryomov req->r_mtime = lreq->mtime; 2359922dab61SIlya Dryomov 2360922dab61SIlya Dryomov mutex_lock(&lreq->lock); 236119079203SIlya Dryomov if (lreq->is_watch && lreq->committed) { 2362922dab61SIlya Dryomov WARN_ON(op->op != CEPH_OSD_OP_WATCH || 2363922dab61SIlya Dryomov op->watch.cookie != lreq->linger_id); 2364922dab61SIlya Dryomov op->watch.op = CEPH_OSD_WATCH_OP_RECONNECT; 2365922dab61SIlya Dryomov op->watch.gen = ++lreq->register_gen; 2366922dab61SIlya Dryomov dout("lreq %p reconnect register_gen %u\n", lreq, 2367922dab61SIlya Dryomov op->watch.gen); 2368922dab61SIlya Dryomov req->r_callback = linger_reconnect_cb; 2369922dab61SIlya Dryomov } else { 237019079203SIlya Dryomov if (!lreq->is_watch) 237119079203SIlya Dryomov lreq->notify_id = 0; 237219079203SIlya Dryomov else 2373922dab61SIlya Dryomov WARN_ON(op->watch.op != CEPH_OSD_WATCH_OP_WATCH); 2374922dab61SIlya Dryomov dout("lreq %p register\n", lreq); 2375922dab61SIlya Dryomov req->r_callback = linger_commit_cb; 2376922dab61SIlya Dryomov } 2377922dab61SIlya Dryomov mutex_unlock(&lreq->lock); 2378922dab61SIlya Dryomov 2379922dab61SIlya Dryomov req->r_priv = linger_get(lreq); 2380922dab61SIlya Dryomov req->r_linger = true; 2381922dab61SIlya Dryomov 2382922dab61SIlya Dryomov submit_request(req, true); 2383922dab61SIlya Dryomov } 2384922dab61SIlya Dryomov 2385922dab61SIlya Dryomov static void linger_ping_cb(struct ceph_osd_request *req) 2386922dab61SIlya Dryomov { 2387922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = req->r_priv; 2388922dab61SIlya Dryomov 2389922dab61SIlya Dryomov mutex_lock(&lreq->lock); 2390922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu result %d ping_sent %lu last_error %d\n", 2391922dab61SIlya Dryomov __func__, lreq, lreq->linger_id, req->r_result, lreq->ping_sent, 2392922dab61SIlya Dryomov lreq->last_error); 2393922dab61SIlya Dryomov if (lreq->register_gen == req->r_ops[0].watch.gen) { 2394b07d3c4bSIlya Dryomov if (!req->r_result) { 2395b07d3c4bSIlya Dryomov lreq->watch_valid_thru = lreq->ping_sent; 2396b07d3c4bSIlya Dryomov } else if (!lreq->last_error) { 2397922dab61SIlya Dryomov lreq->last_error = normalize_watch_error(req->r_result); 2398922dab61SIlya Dryomov queue_watch_error(lreq); 2399922dab61SIlya Dryomov } 2400922dab61SIlya Dryomov } else { 2401922dab61SIlya Dryomov dout("lreq %p register_gen %u ignoring old pong %u\n", lreq, 2402922dab61SIlya Dryomov lreq->register_gen, req->r_ops[0].watch.gen); 2403922dab61SIlya Dryomov } 2404922dab61SIlya Dryomov 2405922dab61SIlya Dryomov mutex_unlock(&lreq->lock); 2406922dab61SIlya Dryomov linger_put(lreq); 2407922dab61SIlya Dryomov } 2408922dab61SIlya Dryomov 2409922dab61SIlya Dryomov static void send_linger_ping(struct ceph_osd_linger_request *lreq) 2410922dab61SIlya Dryomov { 2411922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 2412922dab61SIlya Dryomov struct ceph_osd_request *req = lreq->ping_req; 2413922dab61SIlya Dryomov struct ceph_osd_req_op *op = &req->r_ops[0]; 2414922dab61SIlya Dryomov 2415b7ec35b3SIlya Dryomov if (ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSERD)) { 2416922dab61SIlya Dryomov dout("%s PAUSERD\n", __func__); 2417922dab61SIlya Dryomov return; 2418922dab61SIlya Dryomov } 2419922dab61SIlya Dryomov 2420922dab61SIlya Dryomov lreq->ping_sent = jiffies; 2421922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu ping_sent %lu register_gen %u\n", 2422922dab61SIlya Dryomov __func__, lreq, lreq->linger_id, lreq->ping_sent, 2423922dab61SIlya Dryomov lreq->register_gen); 2424922dab61SIlya Dryomov 2425922dab61SIlya Dryomov if (req->r_osd) 2426922dab61SIlya Dryomov cancel_linger_request(req); 2427922dab61SIlya Dryomov 2428922dab61SIlya Dryomov request_reinit(req); 2429922dab61SIlya Dryomov target_copy(&req->r_t, &lreq->t); 2430922dab61SIlya Dryomov 2431922dab61SIlya Dryomov WARN_ON(op->op != CEPH_OSD_OP_WATCH || 2432922dab61SIlya Dryomov op->watch.cookie != lreq->linger_id || 2433922dab61SIlya Dryomov op->watch.op != CEPH_OSD_WATCH_OP_PING); 2434922dab61SIlya Dryomov op->watch.gen = lreq->register_gen; 2435922dab61SIlya Dryomov req->r_callback = linger_ping_cb; 2436922dab61SIlya Dryomov req->r_priv = linger_get(lreq); 2437922dab61SIlya Dryomov req->r_linger = true; 2438922dab61SIlya Dryomov 2439922dab61SIlya Dryomov ceph_osdc_get_request(req); 2440922dab61SIlya Dryomov account_request(req); 2441922dab61SIlya Dryomov req->r_tid = atomic64_inc_return(&osdc->last_tid); 2442922dab61SIlya Dryomov link_request(lreq->osd, req); 2443922dab61SIlya Dryomov send_request(req); 2444922dab61SIlya Dryomov } 2445922dab61SIlya Dryomov 2446922dab61SIlya Dryomov static void linger_submit(struct ceph_osd_linger_request *lreq) 2447922dab61SIlya Dryomov { 2448922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 2449922dab61SIlya Dryomov struct ceph_osd *osd; 2450922dab61SIlya Dryomov 2451dc93e0e2SIlya Dryomov calc_target(osdc, &lreq->t, false); 2452922dab61SIlya Dryomov osd = lookup_create_osd(osdc, lreq->t.osd, true); 2453922dab61SIlya Dryomov link_linger(osd, lreq); 2454922dab61SIlya Dryomov 2455922dab61SIlya Dryomov send_linger(lreq); 2456922dab61SIlya Dryomov } 2457922dab61SIlya Dryomov 24584609245eSIlya Dryomov static void cancel_linger_map_check(struct ceph_osd_linger_request *lreq) 24594609245eSIlya Dryomov { 24604609245eSIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 24614609245eSIlya Dryomov struct ceph_osd_linger_request *lookup_lreq; 24624609245eSIlya Dryomov 24634609245eSIlya Dryomov verify_osdc_wrlocked(osdc); 24644609245eSIlya Dryomov 24654609245eSIlya Dryomov lookup_lreq = lookup_linger_mc(&osdc->linger_map_checks, 24664609245eSIlya Dryomov lreq->linger_id); 24674609245eSIlya Dryomov if (!lookup_lreq) 24684609245eSIlya Dryomov return; 24694609245eSIlya Dryomov 24704609245eSIlya Dryomov WARN_ON(lookup_lreq != lreq); 24714609245eSIlya Dryomov erase_linger_mc(&osdc->linger_map_checks, lreq); 24724609245eSIlya Dryomov linger_put(lreq); 24734609245eSIlya Dryomov } 24744609245eSIlya Dryomov 2475922dab61SIlya Dryomov /* 2476922dab61SIlya Dryomov * @lreq has to be both registered and linked. 2477922dab61SIlya Dryomov */ 2478922dab61SIlya Dryomov static void __linger_cancel(struct ceph_osd_linger_request *lreq) 2479922dab61SIlya Dryomov { 248019079203SIlya Dryomov if (lreq->is_watch && lreq->ping_req->r_osd) 2481922dab61SIlya Dryomov cancel_linger_request(lreq->ping_req); 2482922dab61SIlya Dryomov if (lreq->reg_req->r_osd) 2483922dab61SIlya Dryomov cancel_linger_request(lreq->reg_req); 24844609245eSIlya Dryomov cancel_linger_map_check(lreq); 2485922dab61SIlya Dryomov unlink_linger(lreq->osd, lreq); 2486922dab61SIlya Dryomov linger_unregister(lreq); 2487922dab61SIlya Dryomov } 2488922dab61SIlya Dryomov 2489922dab61SIlya Dryomov static void linger_cancel(struct ceph_osd_linger_request *lreq) 2490922dab61SIlya Dryomov { 2491922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 2492922dab61SIlya Dryomov 2493922dab61SIlya Dryomov down_write(&osdc->lock); 2494922dab61SIlya Dryomov if (__linger_registered(lreq)) 2495922dab61SIlya Dryomov __linger_cancel(lreq); 2496922dab61SIlya Dryomov up_write(&osdc->lock); 2497922dab61SIlya Dryomov } 2498922dab61SIlya Dryomov 24994609245eSIlya Dryomov static void send_linger_map_check(struct ceph_osd_linger_request *lreq); 25004609245eSIlya Dryomov 25014609245eSIlya Dryomov static void check_linger_pool_dne(struct ceph_osd_linger_request *lreq) 25024609245eSIlya Dryomov { 25034609245eSIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 25044609245eSIlya Dryomov struct ceph_osdmap *map = osdc->osdmap; 25054609245eSIlya Dryomov 25064609245eSIlya Dryomov verify_osdc_wrlocked(osdc); 25074609245eSIlya Dryomov WARN_ON(!map->epoch); 25084609245eSIlya Dryomov 25094609245eSIlya Dryomov if (lreq->register_gen) { 25104609245eSIlya Dryomov lreq->map_dne_bound = map->epoch; 25114609245eSIlya Dryomov dout("%s lreq %p linger_id %llu pool disappeared\n", __func__, 25124609245eSIlya Dryomov lreq, lreq->linger_id); 25134609245eSIlya Dryomov } else { 25144609245eSIlya Dryomov dout("%s lreq %p linger_id %llu map_dne_bound %u have %u\n", 25154609245eSIlya Dryomov __func__, lreq, lreq->linger_id, lreq->map_dne_bound, 25164609245eSIlya Dryomov map->epoch); 25174609245eSIlya Dryomov } 25184609245eSIlya Dryomov 25194609245eSIlya Dryomov if (lreq->map_dne_bound) { 25204609245eSIlya Dryomov if (map->epoch >= lreq->map_dne_bound) { 25214609245eSIlya Dryomov /* we had a new enough map */ 25224609245eSIlya Dryomov pr_info("linger_id %llu pool does not exist\n", 25234609245eSIlya Dryomov lreq->linger_id); 25244609245eSIlya Dryomov linger_reg_commit_complete(lreq, -ENOENT); 25254609245eSIlya Dryomov __linger_cancel(lreq); 25264609245eSIlya Dryomov } 25274609245eSIlya Dryomov } else { 25284609245eSIlya Dryomov send_linger_map_check(lreq); 25294609245eSIlya Dryomov } 25304609245eSIlya Dryomov } 25314609245eSIlya Dryomov 25324609245eSIlya Dryomov static void linger_map_check_cb(struct ceph_mon_generic_request *greq) 25334609245eSIlya Dryomov { 25344609245eSIlya Dryomov struct ceph_osd_client *osdc = &greq->monc->client->osdc; 25354609245eSIlya Dryomov struct ceph_osd_linger_request *lreq; 25364609245eSIlya Dryomov u64 linger_id = greq->private_data; 25374609245eSIlya Dryomov 25384609245eSIlya Dryomov WARN_ON(greq->result || !greq->u.newest); 25394609245eSIlya Dryomov 25404609245eSIlya Dryomov down_write(&osdc->lock); 25414609245eSIlya Dryomov lreq = lookup_linger_mc(&osdc->linger_map_checks, linger_id); 25424609245eSIlya Dryomov if (!lreq) { 25434609245eSIlya Dryomov dout("%s linger_id %llu dne\n", __func__, linger_id); 25444609245eSIlya Dryomov goto out_unlock; 25454609245eSIlya Dryomov } 25464609245eSIlya Dryomov 25474609245eSIlya Dryomov dout("%s lreq %p linger_id %llu map_dne_bound %u newest %llu\n", 25484609245eSIlya Dryomov __func__, lreq, lreq->linger_id, lreq->map_dne_bound, 25494609245eSIlya Dryomov greq->u.newest); 25504609245eSIlya Dryomov if (!lreq->map_dne_bound) 25514609245eSIlya Dryomov lreq->map_dne_bound = greq->u.newest; 25524609245eSIlya Dryomov erase_linger_mc(&osdc->linger_map_checks, lreq); 25534609245eSIlya Dryomov check_linger_pool_dne(lreq); 25544609245eSIlya Dryomov 25554609245eSIlya Dryomov linger_put(lreq); 25564609245eSIlya Dryomov out_unlock: 25574609245eSIlya Dryomov up_write(&osdc->lock); 25584609245eSIlya Dryomov } 25594609245eSIlya Dryomov 25604609245eSIlya Dryomov static void send_linger_map_check(struct ceph_osd_linger_request *lreq) 25614609245eSIlya Dryomov { 25624609245eSIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 25634609245eSIlya Dryomov struct ceph_osd_linger_request *lookup_lreq; 25644609245eSIlya Dryomov int ret; 25654609245eSIlya Dryomov 25664609245eSIlya Dryomov verify_osdc_wrlocked(osdc); 25674609245eSIlya Dryomov 25684609245eSIlya Dryomov lookup_lreq = lookup_linger_mc(&osdc->linger_map_checks, 25694609245eSIlya Dryomov lreq->linger_id); 25704609245eSIlya Dryomov if (lookup_lreq) { 25714609245eSIlya Dryomov WARN_ON(lookup_lreq != lreq); 25724609245eSIlya Dryomov return; 25734609245eSIlya Dryomov } 25744609245eSIlya Dryomov 25754609245eSIlya Dryomov linger_get(lreq); 25764609245eSIlya Dryomov insert_linger_mc(&osdc->linger_map_checks, lreq); 25774609245eSIlya Dryomov ret = ceph_monc_get_version_async(&osdc->client->monc, "osdmap", 25784609245eSIlya Dryomov linger_map_check_cb, lreq->linger_id); 25794609245eSIlya Dryomov WARN_ON(ret); 25804609245eSIlya Dryomov } 25814609245eSIlya Dryomov 2582922dab61SIlya Dryomov static int linger_reg_commit_wait(struct ceph_osd_linger_request *lreq) 2583922dab61SIlya Dryomov { 2584922dab61SIlya Dryomov int ret; 2585922dab61SIlya Dryomov 2586922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu\n", __func__, lreq, lreq->linger_id); 2587922dab61SIlya Dryomov ret = wait_for_completion_interruptible(&lreq->reg_commit_wait); 2588922dab61SIlya Dryomov return ret ?: lreq->reg_commit_error; 2589922dab61SIlya Dryomov } 2590922dab61SIlya Dryomov 259119079203SIlya Dryomov static int linger_notify_finish_wait(struct ceph_osd_linger_request *lreq) 259219079203SIlya Dryomov { 259319079203SIlya Dryomov int ret; 259419079203SIlya Dryomov 259519079203SIlya Dryomov dout("%s lreq %p linger_id %llu\n", __func__, lreq, lreq->linger_id); 259619079203SIlya Dryomov ret = wait_for_completion_interruptible(&lreq->notify_finish_wait); 259719079203SIlya Dryomov return ret ?: lreq->notify_finish_error; 259819079203SIlya Dryomov } 259919079203SIlya Dryomov 2600922dab61SIlya Dryomov /* 2601fbca9635SIlya Dryomov * Timeout callback, called every N seconds. When 1 or more OSD 2602fbca9635SIlya Dryomov * requests has been active for more than N seconds, we send a keepalive 2603fbca9635SIlya Dryomov * (tag + timestamp) to its OSD to ensure any communications channel 2604fbca9635SIlya Dryomov * reset is detected. 26053d14c5d2SYehuda Sadeh */ 26063d14c5d2SYehuda Sadeh static void handle_timeout(struct work_struct *work) 26073d14c5d2SYehuda Sadeh { 26083d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 26093d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, timeout_work.work); 2610a319bf56SIlya Dryomov struct ceph_options *opts = osdc->client->options; 26115aea3dcdSIlya Dryomov unsigned long cutoff = jiffies - opts->osd_keepalive_timeout; 26127cc5e38fSIlya Dryomov unsigned long expiry_cutoff = jiffies - opts->osd_request_timeout; 26135aea3dcdSIlya Dryomov LIST_HEAD(slow_osds); 26145aea3dcdSIlya Dryomov struct rb_node *n, *p; 26153d14c5d2SYehuda Sadeh 26165aea3dcdSIlya Dryomov dout("%s osdc %p\n", __func__, osdc); 26175aea3dcdSIlya Dryomov down_write(&osdc->lock); 26183d14c5d2SYehuda Sadeh 26193d14c5d2SYehuda Sadeh /* 26203d14c5d2SYehuda Sadeh * ping osds that are a bit slow. this ensures that if there 26213d14c5d2SYehuda Sadeh * is a break in the TCP connection we will notice, and reopen 26223d14c5d2SYehuda Sadeh * a connection with that osd (from the fault callback). 26233d14c5d2SYehuda Sadeh */ 26245aea3dcdSIlya Dryomov for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { 26255aea3dcdSIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 26265aea3dcdSIlya Dryomov bool found = false; 26273d14c5d2SYehuda Sadeh 26287cc5e38fSIlya Dryomov for (p = rb_first(&osd->o_requests); p; ) { 26295aea3dcdSIlya Dryomov struct ceph_osd_request *req = 26305aea3dcdSIlya Dryomov rb_entry(p, struct ceph_osd_request, r_node); 26315aea3dcdSIlya Dryomov 26327cc5e38fSIlya Dryomov p = rb_next(p); /* abort_request() */ 26337cc5e38fSIlya Dryomov 26345aea3dcdSIlya Dryomov if (time_before(req->r_stamp, cutoff)) { 26355aea3dcdSIlya Dryomov dout(" req %p tid %llu on osd%d is laggy\n", 26365aea3dcdSIlya Dryomov req, req->r_tid, osd->o_osd); 26375aea3dcdSIlya Dryomov found = true; 26385aea3dcdSIlya Dryomov } 26397cc5e38fSIlya Dryomov if (opts->osd_request_timeout && 26407cc5e38fSIlya Dryomov time_before(req->r_start_stamp, expiry_cutoff)) { 26417cc5e38fSIlya Dryomov pr_err_ratelimited("tid %llu on osd%d timeout\n", 26427cc5e38fSIlya Dryomov req->r_tid, osd->o_osd); 26437cc5e38fSIlya Dryomov abort_request(req, -ETIMEDOUT); 26447cc5e38fSIlya Dryomov } 26455aea3dcdSIlya Dryomov } 2646922dab61SIlya Dryomov for (p = rb_first(&osd->o_linger_requests); p; p = rb_next(p)) { 2647922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = 2648922dab61SIlya Dryomov rb_entry(p, struct ceph_osd_linger_request, node); 2649922dab61SIlya Dryomov 2650922dab61SIlya Dryomov dout(" lreq %p linger_id %llu is served by osd%d\n", 2651922dab61SIlya Dryomov lreq, lreq->linger_id, osd->o_osd); 2652922dab61SIlya Dryomov found = true; 2653922dab61SIlya Dryomov 2654922dab61SIlya Dryomov mutex_lock(&lreq->lock); 265519079203SIlya Dryomov if (lreq->is_watch && lreq->committed && !lreq->last_error) 2656922dab61SIlya Dryomov send_linger_ping(lreq); 2657922dab61SIlya Dryomov mutex_unlock(&lreq->lock); 2658922dab61SIlya Dryomov } 26595aea3dcdSIlya Dryomov 26605aea3dcdSIlya Dryomov if (found) 26613d14c5d2SYehuda Sadeh list_move_tail(&osd->o_keepalive_item, &slow_osds); 26623d14c5d2SYehuda Sadeh } 26635aea3dcdSIlya Dryomov 26647cc5e38fSIlya Dryomov if (opts->osd_request_timeout) { 26657cc5e38fSIlya Dryomov for (p = rb_first(&osdc->homeless_osd.o_requests); p; ) { 26667cc5e38fSIlya Dryomov struct ceph_osd_request *req = 26677cc5e38fSIlya Dryomov rb_entry(p, struct ceph_osd_request, r_node); 26687cc5e38fSIlya Dryomov 26697cc5e38fSIlya Dryomov p = rb_next(p); /* abort_request() */ 26707cc5e38fSIlya Dryomov 26717cc5e38fSIlya Dryomov if (time_before(req->r_start_stamp, expiry_cutoff)) { 26727cc5e38fSIlya Dryomov pr_err_ratelimited("tid %llu on osd%d timeout\n", 26737cc5e38fSIlya Dryomov req->r_tid, osdc->homeless_osd.o_osd); 26747cc5e38fSIlya Dryomov abort_request(req, -ETIMEDOUT); 26757cc5e38fSIlya Dryomov } 26767cc5e38fSIlya Dryomov } 26777cc5e38fSIlya Dryomov } 26787cc5e38fSIlya Dryomov 26795aea3dcdSIlya Dryomov if (atomic_read(&osdc->num_homeless) || !list_empty(&slow_osds)) 26805aea3dcdSIlya Dryomov maybe_request_map(osdc); 26815aea3dcdSIlya Dryomov 26823d14c5d2SYehuda Sadeh while (!list_empty(&slow_osds)) { 26835aea3dcdSIlya Dryomov struct ceph_osd *osd = list_first_entry(&slow_osds, 26845aea3dcdSIlya Dryomov struct ceph_osd, 26853d14c5d2SYehuda Sadeh o_keepalive_item); 26863d14c5d2SYehuda Sadeh list_del_init(&osd->o_keepalive_item); 26873d14c5d2SYehuda Sadeh ceph_con_keepalive(&osd->o_con); 26883d14c5d2SYehuda Sadeh } 26893d14c5d2SYehuda Sadeh 26905aea3dcdSIlya Dryomov up_write(&osdc->lock); 2691fbca9635SIlya Dryomov schedule_delayed_work(&osdc->timeout_work, 2692fbca9635SIlya Dryomov osdc->client->options->osd_keepalive_timeout); 26933d14c5d2SYehuda Sadeh } 26943d14c5d2SYehuda Sadeh 26953d14c5d2SYehuda Sadeh static void handle_osds_timeout(struct work_struct *work) 26963d14c5d2SYehuda Sadeh { 26973d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 26983d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, 26993d14c5d2SYehuda Sadeh osds_timeout_work.work); 2700a319bf56SIlya Dryomov unsigned long delay = osdc->client->options->osd_idle_ttl / 4; 270142a2c09fSIlya Dryomov struct ceph_osd *osd, *nosd; 27023d14c5d2SYehuda Sadeh 270342a2c09fSIlya Dryomov dout("%s osdc %p\n", __func__, osdc); 27045aea3dcdSIlya Dryomov down_write(&osdc->lock); 270542a2c09fSIlya Dryomov list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { 270642a2c09fSIlya Dryomov if (time_before(jiffies, osd->lru_ttl)) 270742a2c09fSIlya Dryomov break; 270842a2c09fSIlya Dryomov 27095aea3dcdSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_requests)); 2710922dab61SIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_linger_requests)); 27115aea3dcdSIlya Dryomov close_osd(osd); 271242a2c09fSIlya Dryomov } 271342a2c09fSIlya Dryomov 27145aea3dcdSIlya Dryomov up_write(&osdc->lock); 27153d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->osds_timeout_work, 27163d14c5d2SYehuda Sadeh round_jiffies_relative(delay)); 27173d14c5d2SYehuda Sadeh } 27183d14c5d2SYehuda Sadeh 2719205ee118SIlya Dryomov static int ceph_oloc_decode(void **p, void *end, 2720205ee118SIlya Dryomov struct ceph_object_locator *oloc) 2721205ee118SIlya Dryomov { 2722205ee118SIlya Dryomov u8 struct_v, struct_cv; 2723205ee118SIlya Dryomov u32 len; 2724205ee118SIlya Dryomov void *struct_end; 2725205ee118SIlya Dryomov int ret = 0; 2726205ee118SIlya Dryomov 2727205ee118SIlya Dryomov ceph_decode_need(p, end, 1 + 1 + 4, e_inval); 2728205ee118SIlya Dryomov struct_v = ceph_decode_8(p); 2729205ee118SIlya Dryomov struct_cv = ceph_decode_8(p); 2730205ee118SIlya Dryomov if (struct_v < 3) { 2731205ee118SIlya Dryomov pr_warn("got v %d < 3 cv %d of ceph_object_locator\n", 2732205ee118SIlya Dryomov struct_v, struct_cv); 2733205ee118SIlya Dryomov goto e_inval; 2734205ee118SIlya Dryomov } 2735205ee118SIlya Dryomov if (struct_cv > 6) { 2736205ee118SIlya Dryomov pr_warn("got v %d cv %d > 6 of ceph_object_locator\n", 2737205ee118SIlya Dryomov struct_v, struct_cv); 2738205ee118SIlya Dryomov goto e_inval; 2739205ee118SIlya Dryomov } 2740205ee118SIlya Dryomov len = ceph_decode_32(p); 2741205ee118SIlya Dryomov ceph_decode_need(p, end, len, e_inval); 2742205ee118SIlya Dryomov struct_end = *p + len; 2743205ee118SIlya Dryomov 2744205ee118SIlya Dryomov oloc->pool = ceph_decode_64(p); 2745205ee118SIlya Dryomov *p += 4; /* skip preferred */ 2746205ee118SIlya Dryomov 2747205ee118SIlya Dryomov len = ceph_decode_32(p); 2748205ee118SIlya Dryomov if (len > 0) { 2749205ee118SIlya Dryomov pr_warn("ceph_object_locator::key is set\n"); 2750205ee118SIlya Dryomov goto e_inval; 2751205ee118SIlya Dryomov } 2752205ee118SIlya Dryomov 2753205ee118SIlya Dryomov if (struct_v >= 5) { 2754cd08e0a2SYan, Zheng bool changed = false; 2755cd08e0a2SYan, Zheng 2756205ee118SIlya Dryomov len = ceph_decode_32(p); 2757205ee118SIlya Dryomov if (len > 0) { 275830c156d9SYan, Zheng ceph_decode_need(p, end, len, e_inval); 2759cd08e0a2SYan, Zheng if (!oloc->pool_ns || 2760cd08e0a2SYan, Zheng ceph_compare_string(oloc->pool_ns, *p, len)) 2761cd08e0a2SYan, Zheng changed = true; 276230c156d9SYan, Zheng *p += len; 2763cd08e0a2SYan, Zheng } else { 2764cd08e0a2SYan, Zheng if (oloc->pool_ns) 2765cd08e0a2SYan, Zheng changed = true; 2766cd08e0a2SYan, Zheng } 2767cd08e0a2SYan, Zheng if (changed) { 2768cd08e0a2SYan, Zheng /* redirect changes namespace */ 2769cd08e0a2SYan, Zheng pr_warn("ceph_object_locator::nspace is changed\n"); 2770cd08e0a2SYan, Zheng goto e_inval; 2771205ee118SIlya Dryomov } 2772205ee118SIlya Dryomov } 2773205ee118SIlya Dryomov 2774205ee118SIlya Dryomov if (struct_v >= 6) { 2775205ee118SIlya Dryomov s64 hash = ceph_decode_64(p); 2776205ee118SIlya Dryomov if (hash != -1) { 2777205ee118SIlya Dryomov pr_warn("ceph_object_locator::hash is set\n"); 2778205ee118SIlya Dryomov goto e_inval; 2779205ee118SIlya Dryomov } 2780205ee118SIlya Dryomov } 2781205ee118SIlya Dryomov 2782205ee118SIlya Dryomov /* skip the rest */ 2783205ee118SIlya Dryomov *p = struct_end; 2784205ee118SIlya Dryomov out: 2785205ee118SIlya Dryomov return ret; 2786205ee118SIlya Dryomov 2787205ee118SIlya Dryomov e_inval: 2788205ee118SIlya Dryomov ret = -EINVAL; 2789205ee118SIlya Dryomov goto out; 2790205ee118SIlya Dryomov } 2791205ee118SIlya Dryomov 2792205ee118SIlya Dryomov static int ceph_redirect_decode(void **p, void *end, 2793205ee118SIlya Dryomov struct ceph_request_redirect *redir) 2794205ee118SIlya Dryomov { 2795205ee118SIlya Dryomov u8 struct_v, struct_cv; 2796205ee118SIlya Dryomov u32 len; 2797205ee118SIlya Dryomov void *struct_end; 2798205ee118SIlya Dryomov int ret; 2799205ee118SIlya Dryomov 2800205ee118SIlya Dryomov ceph_decode_need(p, end, 1 + 1 + 4, e_inval); 2801205ee118SIlya Dryomov struct_v = ceph_decode_8(p); 2802205ee118SIlya Dryomov struct_cv = ceph_decode_8(p); 2803205ee118SIlya Dryomov if (struct_cv > 1) { 2804205ee118SIlya Dryomov pr_warn("got v %d cv %d > 1 of ceph_request_redirect\n", 2805205ee118SIlya Dryomov struct_v, struct_cv); 2806205ee118SIlya Dryomov goto e_inval; 2807205ee118SIlya Dryomov } 2808205ee118SIlya Dryomov len = ceph_decode_32(p); 2809205ee118SIlya Dryomov ceph_decode_need(p, end, len, e_inval); 2810205ee118SIlya Dryomov struct_end = *p + len; 2811205ee118SIlya Dryomov 2812205ee118SIlya Dryomov ret = ceph_oloc_decode(p, end, &redir->oloc); 2813205ee118SIlya Dryomov if (ret) 2814205ee118SIlya Dryomov goto out; 2815205ee118SIlya Dryomov 2816205ee118SIlya Dryomov len = ceph_decode_32(p); 2817205ee118SIlya Dryomov if (len > 0) { 2818205ee118SIlya Dryomov pr_warn("ceph_request_redirect::object_name is set\n"); 2819205ee118SIlya Dryomov goto e_inval; 2820205ee118SIlya Dryomov } 2821205ee118SIlya Dryomov 2822205ee118SIlya Dryomov len = ceph_decode_32(p); 2823205ee118SIlya Dryomov *p += len; /* skip osd_instructions */ 2824205ee118SIlya Dryomov 2825205ee118SIlya Dryomov /* skip the rest */ 2826205ee118SIlya Dryomov *p = struct_end; 2827205ee118SIlya Dryomov out: 2828205ee118SIlya Dryomov return ret; 2829205ee118SIlya Dryomov 2830205ee118SIlya Dryomov e_inval: 2831205ee118SIlya Dryomov ret = -EINVAL; 2832205ee118SIlya Dryomov goto out; 2833205ee118SIlya Dryomov } 2834205ee118SIlya Dryomov 2835fe5da05eSIlya Dryomov struct MOSDOpReply { 2836fe5da05eSIlya Dryomov struct ceph_pg pgid; 2837fe5da05eSIlya Dryomov u64 flags; 2838fe5da05eSIlya Dryomov int result; 2839fe5da05eSIlya Dryomov u32 epoch; 2840fe5da05eSIlya Dryomov int num_ops; 2841fe5da05eSIlya Dryomov u32 outdata_len[CEPH_OSD_MAX_OPS]; 2842fe5da05eSIlya Dryomov s32 rval[CEPH_OSD_MAX_OPS]; 2843fe5da05eSIlya Dryomov int retry_attempt; 2844fe5da05eSIlya Dryomov struct ceph_eversion replay_version; 2845fe5da05eSIlya Dryomov u64 user_version; 2846fe5da05eSIlya Dryomov struct ceph_request_redirect redirect; 2847fe5da05eSIlya Dryomov }; 284825845472SSage Weil 2849fe5da05eSIlya Dryomov static int decode_MOSDOpReply(const struct ceph_msg *msg, struct MOSDOpReply *m) 28503d14c5d2SYehuda Sadeh { 2851fe5da05eSIlya Dryomov void *p = msg->front.iov_base; 2852fe5da05eSIlya Dryomov void *const end = p + msg->front.iov_len; 2853fe5da05eSIlya Dryomov u16 version = le16_to_cpu(msg->hdr.version); 2854fe5da05eSIlya Dryomov struct ceph_eversion bad_replay_version; 2855b0b31a8fSIlya Dryomov u8 decode_redir; 2856fe5da05eSIlya Dryomov u32 len; 2857fe5da05eSIlya Dryomov int ret; 2858fe5da05eSIlya Dryomov int i; 28593d14c5d2SYehuda Sadeh 2860fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, len, e_inval); 2861fe5da05eSIlya Dryomov ceph_decode_need(&p, end, len, e_inval); 2862fe5da05eSIlya Dryomov p += len; /* skip oid */ 28631b83bef2SSage Weil 2864fe5da05eSIlya Dryomov ret = ceph_decode_pgid(&p, end, &m->pgid); 2865fe5da05eSIlya Dryomov if (ret) 2866fe5da05eSIlya Dryomov return ret; 28671b83bef2SSage Weil 2868fe5da05eSIlya Dryomov ceph_decode_64_safe(&p, end, m->flags, e_inval); 2869fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->result, e_inval); 2870fe5da05eSIlya Dryomov ceph_decode_need(&p, end, sizeof(bad_replay_version), e_inval); 2871fe5da05eSIlya Dryomov memcpy(&bad_replay_version, p, sizeof(bad_replay_version)); 2872fe5da05eSIlya Dryomov p += sizeof(bad_replay_version); 2873fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->epoch, e_inval); 28741b83bef2SSage Weil 2875fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->num_ops, e_inval); 2876fe5da05eSIlya Dryomov if (m->num_ops > ARRAY_SIZE(m->outdata_len)) 2877fe5da05eSIlya Dryomov goto e_inval; 28781b83bef2SSage Weil 2879fe5da05eSIlya Dryomov ceph_decode_need(&p, end, m->num_ops * sizeof(struct ceph_osd_op), 2880fe5da05eSIlya Dryomov e_inval); 2881fe5da05eSIlya Dryomov for (i = 0; i < m->num_ops; i++) { 28821b83bef2SSage Weil struct ceph_osd_op *op = p; 28831b83bef2SSage Weil 2884fe5da05eSIlya Dryomov m->outdata_len[i] = le32_to_cpu(op->payload_len); 28851b83bef2SSage Weil p += sizeof(*op); 28861b83bef2SSage Weil } 2887fe5da05eSIlya Dryomov 2888fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->retry_attempt, e_inval); 2889fe5da05eSIlya Dryomov for (i = 0; i < m->num_ops; i++) 2890fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->rval[i], e_inval); 2891fe5da05eSIlya Dryomov 2892fe5da05eSIlya Dryomov if (version >= 5) { 2893fe5da05eSIlya Dryomov ceph_decode_need(&p, end, sizeof(m->replay_version), e_inval); 2894fe5da05eSIlya Dryomov memcpy(&m->replay_version, p, sizeof(m->replay_version)); 2895fe5da05eSIlya Dryomov p += sizeof(m->replay_version); 2896fe5da05eSIlya Dryomov ceph_decode_64_safe(&p, end, m->user_version, e_inval); 2897fe5da05eSIlya Dryomov } else { 2898fe5da05eSIlya Dryomov m->replay_version = bad_replay_version; /* struct */ 2899fe5da05eSIlya Dryomov m->user_version = le64_to_cpu(m->replay_version.version); 29001b83bef2SSage Weil } 29011b83bef2SSage Weil 2902fe5da05eSIlya Dryomov if (version >= 6) { 2903fe5da05eSIlya Dryomov if (version >= 7) 2904fe5da05eSIlya Dryomov ceph_decode_8_safe(&p, end, decode_redir, e_inval); 2905b0b31a8fSIlya Dryomov else 2906b0b31a8fSIlya Dryomov decode_redir = 1; 2907b0b31a8fSIlya Dryomov } else { 2908b0b31a8fSIlya Dryomov decode_redir = 0; 2909b0b31a8fSIlya Dryomov } 2910b0b31a8fSIlya Dryomov 2911b0b31a8fSIlya Dryomov if (decode_redir) { 2912fe5da05eSIlya Dryomov ret = ceph_redirect_decode(&p, end, &m->redirect); 2913fe5da05eSIlya Dryomov if (ret) 2914fe5da05eSIlya Dryomov return ret; 2915205ee118SIlya Dryomov } else { 2916fe5da05eSIlya Dryomov ceph_oloc_init(&m->redirect.oloc); 2917205ee118SIlya Dryomov } 2918205ee118SIlya Dryomov 2919fe5da05eSIlya Dryomov return 0; 2920205ee118SIlya Dryomov 2921fe5da05eSIlya Dryomov e_inval: 2922fe5da05eSIlya Dryomov return -EINVAL; 2923fe5da05eSIlya Dryomov } 2924fe5da05eSIlya Dryomov 2925fe5da05eSIlya Dryomov /* 2926b18b9550SIlya Dryomov * Handle MOSDOpReply. Set ->r_result and call the callback if it is 2927b18b9550SIlya Dryomov * specified. 2928fe5da05eSIlya Dryomov */ 29295aea3dcdSIlya Dryomov static void handle_reply(struct ceph_osd *osd, struct ceph_msg *msg) 2930fe5da05eSIlya Dryomov { 29315aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 2932fe5da05eSIlya Dryomov struct ceph_osd_request *req; 2933fe5da05eSIlya Dryomov struct MOSDOpReply m; 2934fe5da05eSIlya Dryomov u64 tid = le64_to_cpu(msg->hdr.tid); 2935fe5da05eSIlya Dryomov u32 data_len = 0; 2936fe5da05eSIlya Dryomov int ret; 2937fe5da05eSIlya Dryomov int i; 2938fe5da05eSIlya Dryomov 2939fe5da05eSIlya Dryomov dout("%s msg %p tid %llu\n", __func__, msg, tid); 2940fe5da05eSIlya Dryomov 29415aea3dcdSIlya Dryomov down_read(&osdc->lock); 29425aea3dcdSIlya Dryomov if (!osd_registered(osd)) { 29435aea3dcdSIlya Dryomov dout("%s osd%d unknown\n", __func__, osd->o_osd); 29445aea3dcdSIlya Dryomov goto out_unlock_osdc; 2945fe5da05eSIlya Dryomov } 29465aea3dcdSIlya Dryomov WARN_ON(osd->o_osd != le64_to_cpu(msg->hdr.src.num)); 29475aea3dcdSIlya Dryomov 29485aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 29495aea3dcdSIlya Dryomov req = lookup_request(&osd->o_requests, tid); 29505aea3dcdSIlya Dryomov if (!req) { 29515aea3dcdSIlya Dryomov dout("%s osd%d tid %llu unknown\n", __func__, osd->o_osd, tid); 29525aea3dcdSIlya Dryomov goto out_unlock_session; 29535aea3dcdSIlya Dryomov } 2954fe5da05eSIlya Dryomov 2955cd08e0a2SYan, Zheng m.redirect.oloc.pool_ns = req->r_t.target_oloc.pool_ns; 2956fe5da05eSIlya Dryomov ret = decode_MOSDOpReply(msg, &m); 2957cd08e0a2SYan, Zheng m.redirect.oloc.pool_ns = NULL; 2958fe5da05eSIlya Dryomov if (ret) { 2959fe5da05eSIlya Dryomov pr_err("failed to decode MOSDOpReply for tid %llu: %d\n", 2960fe5da05eSIlya Dryomov req->r_tid, ret); 2961fe5da05eSIlya Dryomov ceph_msg_dump(msg); 2962fe5da05eSIlya Dryomov goto fail_request; 2963fe5da05eSIlya Dryomov } 2964fe5da05eSIlya Dryomov dout("%s req %p tid %llu flags 0x%llx pgid %llu.%x epoch %u attempt %d v %u'%llu uv %llu\n", 2965fe5da05eSIlya Dryomov __func__, req, req->r_tid, m.flags, m.pgid.pool, m.pgid.seed, 2966fe5da05eSIlya Dryomov m.epoch, m.retry_attempt, le32_to_cpu(m.replay_version.epoch), 2967fe5da05eSIlya Dryomov le64_to_cpu(m.replay_version.version), m.user_version); 2968fe5da05eSIlya Dryomov 2969fe5da05eSIlya Dryomov if (m.retry_attempt >= 0) { 2970fe5da05eSIlya Dryomov if (m.retry_attempt != req->r_attempts - 1) { 2971fe5da05eSIlya Dryomov dout("req %p tid %llu retry_attempt %d != %d, ignoring\n", 2972fe5da05eSIlya Dryomov req, req->r_tid, m.retry_attempt, 2973fe5da05eSIlya Dryomov req->r_attempts - 1); 29745aea3dcdSIlya Dryomov goto out_unlock_session; 2975fe5da05eSIlya Dryomov } 2976fe5da05eSIlya Dryomov } else { 2977fe5da05eSIlya Dryomov WARN_ON(1); /* MOSDOpReply v4 is assumed */ 2978fe5da05eSIlya Dryomov } 2979fe5da05eSIlya Dryomov 2980fe5da05eSIlya Dryomov if (!ceph_oloc_empty(&m.redirect.oloc)) { 2981fe5da05eSIlya Dryomov dout("req %p tid %llu redirect pool %lld\n", req, req->r_tid, 2982fe5da05eSIlya Dryomov m.redirect.oloc.pool); 29835aea3dcdSIlya Dryomov unlink_request(osd, req); 29845aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 2985205ee118SIlya Dryomov 298630c156d9SYan, Zheng /* 298730c156d9SYan, Zheng * Not ceph_oloc_copy() - changing pool_ns is not 298830c156d9SYan, Zheng * supported. 298930c156d9SYan, Zheng */ 299030c156d9SYan, Zheng req->r_t.target_oloc.pool = m.redirect.oloc.pool; 29915aea3dcdSIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_REDIRECTED; 29925aea3dcdSIlya Dryomov req->r_tid = 0; 29935aea3dcdSIlya Dryomov __submit_request(req, false); 29945aea3dcdSIlya Dryomov goto out_unlock_osdc; 2995205ee118SIlya Dryomov } 2996205ee118SIlya Dryomov 2997fe5da05eSIlya Dryomov if (m.num_ops != req->r_num_ops) { 2998fe5da05eSIlya Dryomov pr_err("num_ops %d != %d for tid %llu\n", m.num_ops, 2999fe5da05eSIlya Dryomov req->r_num_ops, req->r_tid); 3000fe5da05eSIlya Dryomov goto fail_request; 3001fe5da05eSIlya Dryomov } 3002fe5da05eSIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 3003fe5da05eSIlya Dryomov dout(" req %p tid %llu op %d rval %d len %u\n", req, 3004fe5da05eSIlya Dryomov req->r_tid, i, m.rval[i], m.outdata_len[i]); 3005fe5da05eSIlya Dryomov req->r_ops[i].rval = m.rval[i]; 3006fe5da05eSIlya Dryomov req->r_ops[i].outdata_len = m.outdata_len[i]; 3007fe5da05eSIlya Dryomov data_len += m.outdata_len[i]; 3008fe5da05eSIlya Dryomov } 3009fe5da05eSIlya Dryomov if (data_len != le32_to_cpu(msg->hdr.data_len)) { 3010fe5da05eSIlya Dryomov pr_err("sum of lens %u != %u for tid %llu\n", data_len, 3011fe5da05eSIlya Dryomov le32_to_cpu(msg->hdr.data_len), req->r_tid); 3012fe5da05eSIlya Dryomov goto fail_request; 3013fe5da05eSIlya Dryomov } 3014b18b9550SIlya Dryomov dout("%s req %p tid %llu result %d data_len %u\n", __func__, 3015b18b9550SIlya Dryomov req, req->r_tid, m.result, data_len); 30163d14c5d2SYehuda Sadeh 3017b18b9550SIlya Dryomov /* 3018b18b9550SIlya Dryomov * Since we only ever request ONDISK, we should only ever get 3019b18b9550SIlya Dryomov * one (type of) reply back. 3020b18b9550SIlya Dryomov */ 3021b18b9550SIlya Dryomov WARN_ON(!(m.flags & CEPH_OSD_FLAG_ONDISK)); 3022fe5da05eSIlya Dryomov req->r_result = m.result ?: data_len; 302345ee2c1dSIlya Dryomov finish_request(req); 30245aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 30255aea3dcdSIlya Dryomov up_read(&osdc->lock); 30263d14c5d2SYehuda Sadeh 3027fe5da05eSIlya Dryomov __complete_request(req); 3028b18b9550SIlya Dryomov complete_all(&req->r_completion); 3029dc045a91SIlya Dryomov ceph_osdc_put_request(req); 30303d14c5d2SYehuda Sadeh return; 3031fe5da05eSIlya Dryomov 3032fe5da05eSIlya Dryomov fail_request: 30334609245eSIlya Dryomov complete_request(req, -EIO); 30345aea3dcdSIlya Dryomov out_unlock_session: 30355aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 30365aea3dcdSIlya Dryomov out_unlock_osdc: 30375aea3dcdSIlya Dryomov up_read(&osdc->lock); 30383d14c5d2SYehuda Sadeh } 30393d14c5d2SYehuda Sadeh 304042c1b124SIlya Dryomov static void set_pool_was_full(struct ceph_osd_client *osdc) 304142c1b124SIlya Dryomov { 304242c1b124SIlya Dryomov struct rb_node *n; 304342c1b124SIlya Dryomov 304442c1b124SIlya Dryomov for (n = rb_first(&osdc->osdmap->pg_pools); n; n = rb_next(n)) { 304542c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 304642c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 304742c1b124SIlya Dryomov 304842c1b124SIlya Dryomov pi->was_full = __pool_full(pi); 304942c1b124SIlya Dryomov } 305042c1b124SIlya Dryomov } 305142c1b124SIlya Dryomov 30525aea3dcdSIlya Dryomov static bool pool_cleared_full(struct ceph_osd_client *osdc, s64 pool_id) 30533d14c5d2SYehuda Sadeh { 30545aea3dcdSIlya Dryomov struct ceph_pg_pool_info *pi; 30553d14c5d2SYehuda Sadeh 30565aea3dcdSIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, pool_id); 30575aea3dcdSIlya Dryomov if (!pi) 30585aea3dcdSIlya Dryomov return false; 30593d14c5d2SYehuda Sadeh 30605aea3dcdSIlya Dryomov return pi->was_full && !__pool_full(pi); 30613d14c5d2SYehuda Sadeh } 30623d14c5d2SYehuda Sadeh 3063922dab61SIlya Dryomov static enum calc_target_result 3064922dab61SIlya Dryomov recalc_linger_target(struct ceph_osd_linger_request *lreq) 3065922dab61SIlya Dryomov { 3066922dab61SIlya Dryomov struct ceph_osd_client *osdc = lreq->osdc; 3067922dab61SIlya Dryomov enum calc_target_result ct_res; 3068922dab61SIlya Dryomov 3069dc93e0e2SIlya Dryomov ct_res = calc_target(osdc, &lreq->t, true); 3070922dab61SIlya Dryomov if (ct_res == CALC_TARGET_NEED_RESEND) { 3071922dab61SIlya Dryomov struct ceph_osd *osd; 3072922dab61SIlya Dryomov 3073922dab61SIlya Dryomov osd = lookup_create_osd(osdc, lreq->t.osd, true); 3074922dab61SIlya Dryomov if (osd != lreq->osd) { 3075922dab61SIlya Dryomov unlink_linger(lreq->osd, lreq); 3076922dab61SIlya Dryomov link_linger(osd, lreq); 3077922dab61SIlya Dryomov } 3078922dab61SIlya Dryomov } 3079922dab61SIlya Dryomov 3080922dab61SIlya Dryomov return ct_res; 3081922dab61SIlya Dryomov } 3082922dab61SIlya Dryomov 30833d14c5d2SYehuda Sadeh /* 30845aea3dcdSIlya Dryomov * Requeue requests whose mapping to an OSD has changed. 30853d14c5d2SYehuda Sadeh */ 30865aea3dcdSIlya Dryomov static void scan_requests(struct ceph_osd *osd, 30875aea3dcdSIlya Dryomov bool force_resend, 30885aea3dcdSIlya Dryomov bool cleared_full, 30895aea3dcdSIlya Dryomov bool check_pool_cleared_full, 30905aea3dcdSIlya Dryomov struct rb_root *need_resend, 30915aea3dcdSIlya Dryomov struct list_head *need_resend_linger) 30923d14c5d2SYehuda Sadeh { 30935aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 30945aea3dcdSIlya Dryomov struct rb_node *n; 30955aea3dcdSIlya Dryomov bool force_resend_writes; 30963d14c5d2SYehuda Sadeh 3097922dab61SIlya Dryomov for (n = rb_first(&osd->o_linger_requests); n; ) { 3098922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = 3099922dab61SIlya Dryomov rb_entry(n, struct ceph_osd_linger_request, node); 3100922dab61SIlya Dryomov enum calc_target_result ct_res; 3101922dab61SIlya Dryomov 3102922dab61SIlya Dryomov n = rb_next(n); /* recalc_linger_target() */ 3103922dab61SIlya Dryomov 3104922dab61SIlya Dryomov dout("%s lreq %p linger_id %llu\n", __func__, lreq, 3105922dab61SIlya Dryomov lreq->linger_id); 3106922dab61SIlya Dryomov ct_res = recalc_linger_target(lreq); 3107922dab61SIlya Dryomov switch (ct_res) { 3108922dab61SIlya Dryomov case CALC_TARGET_NO_ACTION: 3109922dab61SIlya Dryomov force_resend_writes = cleared_full || 3110922dab61SIlya Dryomov (check_pool_cleared_full && 3111922dab61SIlya Dryomov pool_cleared_full(osdc, lreq->t.base_oloc.pool)); 3112922dab61SIlya Dryomov if (!force_resend && !force_resend_writes) 3113922dab61SIlya Dryomov break; 3114922dab61SIlya Dryomov 3115922dab61SIlya Dryomov /* fall through */ 3116922dab61SIlya Dryomov case CALC_TARGET_NEED_RESEND: 31174609245eSIlya Dryomov cancel_linger_map_check(lreq); 3118922dab61SIlya Dryomov /* 3119922dab61SIlya Dryomov * scan_requests() for the previous epoch(s) 3120922dab61SIlya Dryomov * may have already added it to the list, since 3121922dab61SIlya Dryomov * it's not unlinked here. 3122922dab61SIlya Dryomov */ 3123922dab61SIlya Dryomov if (list_empty(&lreq->scan_item)) 3124922dab61SIlya Dryomov list_add_tail(&lreq->scan_item, need_resend_linger); 3125922dab61SIlya Dryomov break; 3126922dab61SIlya Dryomov case CALC_TARGET_POOL_DNE: 31274609245eSIlya Dryomov check_linger_pool_dne(lreq); 3128922dab61SIlya Dryomov break; 3129922dab61SIlya Dryomov } 3130922dab61SIlya Dryomov } 3131922dab61SIlya Dryomov 31325aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; ) { 31335aea3dcdSIlya Dryomov struct ceph_osd_request *req = 31345aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 31355aea3dcdSIlya Dryomov enum calc_target_result ct_res; 3136ab60b16dSAlex Elder 31374609245eSIlya Dryomov n = rb_next(n); /* unlink_request(), check_pool_dne() */ 3138ab60b16dSAlex Elder 31395aea3dcdSIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 3140dc93e0e2SIlya Dryomov ct_res = calc_target(osdc, &req->r_t, false); 31415aea3dcdSIlya Dryomov switch (ct_res) { 31425aea3dcdSIlya Dryomov case CALC_TARGET_NO_ACTION: 31435aea3dcdSIlya Dryomov force_resend_writes = cleared_full || 31445aea3dcdSIlya Dryomov (check_pool_cleared_full && 31455aea3dcdSIlya Dryomov pool_cleared_full(osdc, req->r_t.base_oloc.pool)); 31465aea3dcdSIlya Dryomov if (!force_resend && 31475aea3dcdSIlya Dryomov (!(req->r_flags & CEPH_OSD_FLAG_WRITE) || 31485aea3dcdSIlya Dryomov !force_resend_writes)) 31495aea3dcdSIlya Dryomov break; 3150a40c4f10SYehuda Sadeh 31515aea3dcdSIlya Dryomov /* fall through */ 31525aea3dcdSIlya Dryomov case CALC_TARGET_NEED_RESEND: 31534609245eSIlya Dryomov cancel_map_check(req); 31545aea3dcdSIlya Dryomov unlink_request(osd, req); 31555aea3dcdSIlya Dryomov insert_request(need_resend, req); 31565aea3dcdSIlya Dryomov break; 31575aea3dcdSIlya Dryomov case CALC_TARGET_POOL_DNE: 31584609245eSIlya Dryomov check_pool_dne(req); 31595aea3dcdSIlya Dryomov break; 3160a40c4f10SYehuda Sadeh } 31613d14c5d2SYehuda Sadeh } 31623d14c5d2SYehuda Sadeh } 31636f6c7006SSage Weil 316442c1b124SIlya Dryomov static int handle_one_map(struct ceph_osd_client *osdc, 31655aea3dcdSIlya Dryomov void *p, void *end, bool incremental, 31665aea3dcdSIlya Dryomov struct rb_root *need_resend, 31675aea3dcdSIlya Dryomov struct list_head *need_resend_linger) 316842c1b124SIlya Dryomov { 316942c1b124SIlya Dryomov struct ceph_osdmap *newmap; 317042c1b124SIlya Dryomov struct rb_node *n; 317142c1b124SIlya Dryomov bool skipped_map = false; 317242c1b124SIlya Dryomov bool was_full; 317342c1b124SIlya Dryomov 3174b7ec35b3SIlya Dryomov was_full = ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL); 317542c1b124SIlya Dryomov set_pool_was_full(osdc); 317642c1b124SIlya Dryomov 317742c1b124SIlya Dryomov if (incremental) 317842c1b124SIlya Dryomov newmap = osdmap_apply_incremental(&p, end, osdc->osdmap); 317942c1b124SIlya Dryomov else 318042c1b124SIlya Dryomov newmap = ceph_osdmap_decode(&p, end); 318142c1b124SIlya Dryomov if (IS_ERR(newmap)) 318242c1b124SIlya Dryomov return PTR_ERR(newmap); 318342c1b124SIlya Dryomov 318442c1b124SIlya Dryomov if (newmap != osdc->osdmap) { 318542c1b124SIlya Dryomov /* 318642c1b124SIlya Dryomov * Preserve ->was_full before destroying the old map. 318742c1b124SIlya Dryomov * For pools that weren't in the old map, ->was_full 318842c1b124SIlya Dryomov * should be false. 318942c1b124SIlya Dryomov */ 319042c1b124SIlya Dryomov for (n = rb_first(&newmap->pg_pools); n; n = rb_next(n)) { 319142c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 319242c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 319342c1b124SIlya Dryomov struct ceph_pg_pool_info *old_pi; 319442c1b124SIlya Dryomov 319542c1b124SIlya Dryomov old_pi = ceph_pg_pool_by_id(osdc->osdmap, pi->id); 319642c1b124SIlya Dryomov if (old_pi) 319742c1b124SIlya Dryomov pi->was_full = old_pi->was_full; 319842c1b124SIlya Dryomov else 319942c1b124SIlya Dryomov WARN_ON(pi->was_full); 320042c1b124SIlya Dryomov } 320142c1b124SIlya Dryomov 320242c1b124SIlya Dryomov if (osdc->osdmap->epoch && 320342c1b124SIlya Dryomov osdc->osdmap->epoch + 1 < newmap->epoch) { 320442c1b124SIlya Dryomov WARN_ON(incremental); 320542c1b124SIlya Dryomov skipped_map = true; 320642c1b124SIlya Dryomov } 320742c1b124SIlya Dryomov 320842c1b124SIlya Dryomov ceph_osdmap_destroy(osdc->osdmap); 320942c1b124SIlya Dryomov osdc->osdmap = newmap; 321042c1b124SIlya Dryomov } 321142c1b124SIlya Dryomov 3212b7ec35b3SIlya Dryomov was_full &= !ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL); 32135aea3dcdSIlya Dryomov scan_requests(&osdc->homeless_osd, skipped_map, was_full, true, 32145aea3dcdSIlya Dryomov need_resend, need_resend_linger); 32155aea3dcdSIlya Dryomov 32165aea3dcdSIlya Dryomov for (n = rb_first(&osdc->osds); n; ) { 32175aea3dcdSIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 32185aea3dcdSIlya Dryomov 32195aea3dcdSIlya Dryomov n = rb_next(n); /* close_osd() */ 32205aea3dcdSIlya Dryomov 32215aea3dcdSIlya Dryomov scan_requests(osd, skipped_map, was_full, true, need_resend, 32225aea3dcdSIlya Dryomov need_resend_linger); 32235aea3dcdSIlya Dryomov if (!ceph_osd_is_up(osdc->osdmap, osd->o_osd) || 32245aea3dcdSIlya Dryomov memcmp(&osd->o_con.peer_addr, 32255aea3dcdSIlya Dryomov ceph_osd_addr(osdc->osdmap, osd->o_osd), 32265aea3dcdSIlya Dryomov sizeof(struct ceph_entity_addr))) 32275aea3dcdSIlya Dryomov close_osd(osd); 32285aea3dcdSIlya Dryomov } 322942c1b124SIlya Dryomov 323042c1b124SIlya Dryomov return 0; 323142c1b124SIlya Dryomov } 32326f6c7006SSage Weil 32335aea3dcdSIlya Dryomov static void kick_requests(struct ceph_osd_client *osdc, 32345aea3dcdSIlya Dryomov struct rb_root *need_resend, 32355aea3dcdSIlya Dryomov struct list_head *need_resend_linger) 32365aea3dcdSIlya Dryomov { 3237922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq, *nlreq; 32385aea3dcdSIlya Dryomov struct rb_node *n; 32395aea3dcdSIlya Dryomov 32405aea3dcdSIlya Dryomov for (n = rb_first(need_resend); n; ) { 32415aea3dcdSIlya Dryomov struct ceph_osd_request *req = 32425aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 32435aea3dcdSIlya Dryomov struct ceph_osd *osd; 32445aea3dcdSIlya Dryomov 32455aea3dcdSIlya Dryomov n = rb_next(n); 32465aea3dcdSIlya Dryomov erase_request(need_resend, req); /* before link_request() */ 32475aea3dcdSIlya Dryomov 32485aea3dcdSIlya Dryomov WARN_ON(req->r_osd); 3249dc93e0e2SIlya Dryomov calc_target(osdc, &req->r_t, false); 32505aea3dcdSIlya Dryomov osd = lookup_create_osd(osdc, req->r_t.osd, true); 32515aea3dcdSIlya Dryomov link_request(osd, req); 32525aea3dcdSIlya Dryomov if (!req->r_linger) { 32535aea3dcdSIlya Dryomov if (!osd_homeless(osd) && !req->r_t.paused) 32545aea3dcdSIlya Dryomov send_request(req); 3255922dab61SIlya Dryomov } else { 3256922dab61SIlya Dryomov cancel_linger_request(req); 32575aea3dcdSIlya Dryomov } 32585aea3dcdSIlya Dryomov } 3259922dab61SIlya Dryomov 3260922dab61SIlya Dryomov list_for_each_entry_safe(lreq, nlreq, need_resend_linger, scan_item) { 3261922dab61SIlya Dryomov if (!osd_homeless(lreq->osd)) 3262922dab61SIlya Dryomov send_linger(lreq); 3263922dab61SIlya Dryomov 3264922dab61SIlya Dryomov list_del_init(&lreq->scan_item); 3265922dab61SIlya Dryomov } 32665aea3dcdSIlya Dryomov } 32675aea3dcdSIlya Dryomov 32683d14c5d2SYehuda Sadeh /* 32693d14c5d2SYehuda Sadeh * Process updated osd map. 32703d14c5d2SYehuda Sadeh * 32713d14c5d2SYehuda Sadeh * The message contains any number of incremental and full maps, normally 32723d14c5d2SYehuda Sadeh * indicating some sort of topology change in the cluster. Kick requests 32733d14c5d2SYehuda Sadeh * off to different OSDs as needed. 32743d14c5d2SYehuda Sadeh */ 32753d14c5d2SYehuda Sadeh void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) 32763d14c5d2SYehuda Sadeh { 327742c1b124SIlya Dryomov void *p = msg->front.iov_base; 327842c1b124SIlya Dryomov void *const end = p + msg->front.iov_len; 32793d14c5d2SYehuda Sadeh u32 nr_maps, maplen; 32803d14c5d2SYehuda Sadeh u32 epoch; 32813d14c5d2SYehuda Sadeh struct ceph_fsid fsid; 32825aea3dcdSIlya Dryomov struct rb_root need_resend = RB_ROOT; 32835aea3dcdSIlya Dryomov LIST_HEAD(need_resend_linger); 328442c1b124SIlya Dryomov bool handled_incremental = false; 328542c1b124SIlya Dryomov bool was_pauserd, was_pausewr; 328642c1b124SIlya Dryomov bool pauserd, pausewr; 328742c1b124SIlya Dryomov int err; 32883d14c5d2SYehuda Sadeh 328942c1b124SIlya Dryomov dout("%s have %u\n", __func__, osdc->osdmap->epoch); 32905aea3dcdSIlya Dryomov down_write(&osdc->lock); 32913d14c5d2SYehuda Sadeh 32923d14c5d2SYehuda Sadeh /* verify fsid */ 32933d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, sizeof(fsid), bad); 32943d14c5d2SYehuda Sadeh ceph_decode_copy(&p, &fsid, sizeof(fsid)); 32953d14c5d2SYehuda Sadeh if (ceph_check_fsid(osdc->client, &fsid) < 0) 329642c1b124SIlya Dryomov goto bad; 32973d14c5d2SYehuda Sadeh 3298b7ec35b3SIlya Dryomov was_pauserd = ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSERD); 3299b7ec35b3SIlya Dryomov was_pausewr = ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSEWR) || 3300b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || 330142c1b124SIlya Dryomov have_pool_full(osdc); 33029a1ea2dbSJosh Durgin 33033d14c5d2SYehuda Sadeh /* incremental maps */ 33043d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 33053d14c5d2SYehuda Sadeh dout(" %d inc maps\n", nr_maps); 33063d14c5d2SYehuda Sadeh while (nr_maps > 0) { 33073d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 33083d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 33093d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 33103d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 331142c1b124SIlya Dryomov if (osdc->osdmap->epoch && 331242c1b124SIlya Dryomov osdc->osdmap->epoch + 1 == epoch) { 33133d14c5d2SYehuda Sadeh dout("applying incremental map %u len %d\n", 33143d14c5d2SYehuda Sadeh epoch, maplen); 33155aea3dcdSIlya Dryomov err = handle_one_map(osdc, p, p + maplen, true, 33165aea3dcdSIlya Dryomov &need_resend, &need_resend_linger); 331742c1b124SIlya Dryomov if (err) 33183d14c5d2SYehuda Sadeh goto bad; 331942c1b124SIlya Dryomov handled_incremental = true; 33203d14c5d2SYehuda Sadeh } else { 33213d14c5d2SYehuda Sadeh dout("ignoring incremental map %u len %d\n", 33223d14c5d2SYehuda Sadeh epoch, maplen); 33233d14c5d2SYehuda Sadeh } 332442c1b124SIlya Dryomov p += maplen; 33253d14c5d2SYehuda Sadeh nr_maps--; 33263d14c5d2SYehuda Sadeh } 332742c1b124SIlya Dryomov if (handled_incremental) 33283d14c5d2SYehuda Sadeh goto done; 33293d14c5d2SYehuda Sadeh 33303d14c5d2SYehuda Sadeh /* full maps */ 33313d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 33323d14c5d2SYehuda Sadeh dout(" %d full maps\n", nr_maps); 33333d14c5d2SYehuda Sadeh while (nr_maps) { 33343d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 33353d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 33363d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 33373d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 33383d14c5d2SYehuda Sadeh if (nr_maps > 1) { 33393d14c5d2SYehuda Sadeh dout("skipping non-latest full map %u len %d\n", 33403d14c5d2SYehuda Sadeh epoch, maplen); 3341e5253a7bSIlya Dryomov } else if (osdc->osdmap->epoch >= epoch) { 33423d14c5d2SYehuda Sadeh dout("skipping full map %u len %d, " 33433d14c5d2SYehuda Sadeh "older than our %u\n", epoch, maplen, 33443d14c5d2SYehuda Sadeh osdc->osdmap->epoch); 33453d14c5d2SYehuda Sadeh } else { 33463d14c5d2SYehuda Sadeh dout("taking full map %u len %d\n", epoch, maplen); 33475aea3dcdSIlya Dryomov err = handle_one_map(osdc, p, p + maplen, false, 33485aea3dcdSIlya Dryomov &need_resend, &need_resend_linger); 334942c1b124SIlya Dryomov if (err) 33503d14c5d2SYehuda Sadeh goto bad; 33513d14c5d2SYehuda Sadeh } 33523d14c5d2SYehuda Sadeh p += maplen; 33533d14c5d2SYehuda Sadeh nr_maps--; 33543d14c5d2SYehuda Sadeh } 33553d14c5d2SYehuda Sadeh 33563d14c5d2SYehuda Sadeh done: 3357cd634fb6SSage Weil /* 3358cd634fb6SSage Weil * subscribe to subsequent osdmap updates if full to ensure 3359cd634fb6SSage Weil * we find out when we are no longer full and stop returning 3360cd634fb6SSage Weil * ENOSPC. 3361cd634fb6SSage Weil */ 3362b7ec35b3SIlya Dryomov pauserd = ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSERD); 3363b7ec35b3SIlya Dryomov pausewr = ceph_osdmap_flag(osdc, CEPH_OSDMAP_PAUSEWR) || 3364b7ec35b3SIlya Dryomov ceph_osdmap_flag(osdc, CEPH_OSDMAP_FULL) || 336542c1b124SIlya Dryomov have_pool_full(osdc); 336658eb7932SJeff Layton if (was_pauserd || was_pausewr || pauserd || pausewr || 336758eb7932SJeff Layton osdc->osdmap->epoch < osdc->epoch_barrier) 336842c1b124SIlya Dryomov maybe_request_map(osdc); 3369cd634fb6SSage Weil 33705aea3dcdSIlya Dryomov kick_requests(osdc, &need_resend, &need_resend_linger); 337142c1b124SIlya Dryomov 3372fc36d0a4SJeff Layton ceph_osdc_abort_on_full(osdc); 337342c1b124SIlya Dryomov ceph_monc_got_map(&osdc->client->monc, CEPH_SUB_OSDMAP, 337442c1b124SIlya Dryomov osdc->osdmap->epoch); 33755aea3dcdSIlya Dryomov up_write(&osdc->lock); 33763d14c5d2SYehuda Sadeh wake_up_all(&osdc->client->auth_wq); 33773d14c5d2SYehuda Sadeh return; 33783d14c5d2SYehuda Sadeh 33793d14c5d2SYehuda Sadeh bad: 33803d14c5d2SYehuda Sadeh pr_err("osdc handle_map corrupt msg\n"); 33813d14c5d2SYehuda Sadeh ceph_msg_dump(msg); 33825aea3dcdSIlya Dryomov up_write(&osdc->lock); 33835aea3dcdSIlya Dryomov } 33845aea3dcdSIlya Dryomov 33855aea3dcdSIlya Dryomov /* 33865aea3dcdSIlya Dryomov * Resubmit requests pending on the given osd. 33875aea3dcdSIlya Dryomov */ 33885aea3dcdSIlya Dryomov static void kick_osd_requests(struct ceph_osd *osd) 33895aea3dcdSIlya Dryomov { 33905aea3dcdSIlya Dryomov struct rb_node *n; 33915aea3dcdSIlya Dryomov 3392922dab61SIlya Dryomov for (n = rb_first(&osd->o_requests); n; ) { 33935aea3dcdSIlya Dryomov struct ceph_osd_request *req = 33945aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 33955aea3dcdSIlya Dryomov 3396922dab61SIlya Dryomov n = rb_next(n); /* cancel_linger_request() */ 3397922dab61SIlya Dryomov 33985aea3dcdSIlya Dryomov if (!req->r_linger) { 33995aea3dcdSIlya Dryomov if (!req->r_t.paused) 34005aea3dcdSIlya Dryomov send_request(req); 3401922dab61SIlya Dryomov } else { 3402922dab61SIlya Dryomov cancel_linger_request(req); 34035aea3dcdSIlya Dryomov } 34045aea3dcdSIlya Dryomov } 3405922dab61SIlya Dryomov for (n = rb_first(&osd->o_linger_requests); n; n = rb_next(n)) { 3406922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq = 3407922dab61SIlya Dryomov rb_entry(n, struct ceph_osd_linger_request, node); 3408922dab61SIlya Dryomov 3409922dab61SIlya Dryomov send_linger(lreq); 3410922dab61SIlya Dryomov } 34115aea3dcdSIlya Dryomov } 34125aea3dcdSIlya Dryomov 34135aea3dcdSIlya Dryomov /* 34145aea3dcdSIlya Dryomov * If the osd connection drops, we need to resubmit all requests. 34155aea3dcdSIlya Dryomov */ 34165aea3dcdSIlya Dryomov static void osd_fault(struct ceph_connection *con) 34175aea3dcdSIlya Dryomov { 34185aea3dcdSIlya Dryomov struct ceph_osd *osd = con->private; 34195aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 34205aea3dcdSIlya Dryomov 34215aea3dcdSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 34225aea3dcdSIlya Dryomov 34235aea3dcdSIlya Dryomov down_write(&osdc->lock); 34245aea3dcdSIlya Dryomov if (!osd_registered(osd)) { 34255aea3dcdSIlya Dryomov dout("%s osd%d unknown\n", __func__, osd->o_osd); 34265aea3dcdSIlya Dryomov goto out_unlock; 34275aea3dcdSIlya Dryomov } 34285aea3dcdSIlya Dryomov 34295aea3dcdSIlya Dryomov if (!reopen_osd(osd)) 34305aea3dcdSIlya Dryomov kick_osd_requests(osd); 34315aea3dcdSIlya Dryomov maybe_request_map(osdc); 34325aea3dcdSIlya Dryomov 34335aea3dcdSIlya Dryomov out_unlock: 34345aea3dcdSIlya Dryomov up_write(&osdc->lock); 34353d14c5d2SYehuda Sadeh } 34363d14c5d2SYehuda Sadeh 34373d14c5d2SYehuda Sadeh /* 3438a40c4f10SYehuda Sadeh * Process osd watch notifications 3439a40c4f10SYehuda Sadeh */ 34403c663bbdSAlex Elder static void handle_watch_notify(struct ceph_osd_client *osdc, 34413c663bbdSAlex Elder struct ceph_msg *msg) 3442a40c4f10SYehuda Sadeh { 3443922dab61SIlya Dryomov void *p = msg->front.iov_base; 3444922dab61SIlya Dryomov void *const end = p + msg->front.iov_len; 3445922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq; 3446922dab61SIlya Dryomov struct linger_work *lwork; 3447922dab61SIlya Dryomov u8 proto_ver, opcode; 3448922dab61SIlya Dryomov u64 cookie, notify_id; 3449922dab61SIlya Dryomov u64 notifier_id = 0; 345019079203SIlya Dryomov s32 return_code = 0; 3451922dab61SIlya Dryomov void *payload = NULL; 3452922dab61SIlya Dryomov u32 payload_len = 0; 3453a40c4f10SYehuda Sadeh 3454a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, proto_ver, bad); 3455a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, opcode, bad); 3456a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, cookie, bad); 3457922dab61SIlya Dryomov p += 8; /* skip ver */ 3458a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, notify_id, bad); 3459a40c4f10SYehuda Sadeh 3460922dab61SIlya Dryomov if (proto_ver >= 1) { 3461922dab61SIlya Dryomov ceph_decode_32_safe(&p, end, payload_len, bad); 3462922dab61SIlya Dryomov ceph_decode_need(&p, end, payload_len, bad); 3463922dab61SIlya Dryomov payload = p; 3464922dab61SIlya Dryomov p += payload_len; 3465a40c4f10SYehuda Sadeh } 3466a40c4f10SYehuda Sadeh 3467922dab61SIlya Dryomov if (le16_to_cpu(msg->hdr.version) >= 2) 346819079203SIlya Dryomov ceph_decode_32_safe(&p, end, return_code, bad); 3469922dab61SIlya Dryomov 3470922dab61SIlya Dryomov if (le16_to_cpu(msg->hdr.version) >= 3) 3471922dab61SIlya Dryomov ceph_decode_64_safe(&p, end, notifier_id, bad); 3472922dab61SIlya Dryomov 3473922dab61SIlya Dryomov down_read(&osdc->lock); 3474922dab61SIlya Dryomov lreq = lookup_linger_osdc(&osdc->linger_requests, cookie); 3475922dab61SIlya Dryomov if (!lreq) { 3476922dab61SIlya Dryomov dout("%s opcode %d cookie %llu dne\n", __func__, opcode, 3477922dab61SIlya Dryomov cookie); 3478922dab61SIlya Dryomov goto out_unlock_osdc; 3479922dab61SIlya Dryomov } 3480922dab61SIlya Dryomov 3481922dab61SIlya Dryomov mutex_lock(&lreq->lock); 348219079203SIlya Dryomov dout("%s opcode %d cookie %llu lreq %p is_watch %d\n", __func__, 348319079203SIlya Dryomov opcode, cookie, lreq, lreq->is_watch); 3484922dab61SIlya Dryomov if (opcode == CEPH_WATCH_EVENT_DISCONNECT) { 3485922dab61SIlya Dryomov if (!lreq->last_error) { 3486922dab61SIlya Dryomov lreq->last_error = -ENOTCONN; 3487922dab61SIlya Dryomov queue_watch_error(lreq); 3488922dab61SIlya Dryomov } 348919079203SIlya Dryomov } else if (!lreq->is_watch) { 349019079203SIlya Dryomov /* CEPH_WATCH_EVENT_NOTIFY_COMPLETE */ 349119079203SIlya Dryomov if (lreq->notify_id && lreq->notify_id != notify_id) { 349219079203SIlya Dryomov dout("lreq %p notify_id %llu != %llu, ignoring\n", lreq, 349319079203SIlya Dryomov lreq->notify_id, notify_id); 349419079203SIlya Dryomov } else if (!completion_done(&lreq->notify_finish_wait)) { 349519079203SIlya Dryomov struct ceph_msg_data *data = 349619079203SIlya Dryomov list_first_entry_or_null(&msg->data, 349719079203SIlya Dryomov struct ceph_msg_data, 349819079203SIlya Dryomov links); 349919079203SIlya Dryomov 350019079203SIlya Dryomov if (data) { 350119079203SIlya Dryomov if (lreq->preply_pages) { 350219079203SIlya Dryomov WARN_ON(data->type != 350319079203SIlya Dryomov CEPH_MSG_DATA_PAGES); 350419079203SIlya Dryomov *lreq->preply_pages = data->pages; 350519079203SIlya Dryomov *lreq->preply_len = data->length; 350619079203SIlya Dryomov } else { 350719079203SIlya Dryomov ceph_release_page_vector(data->pages, 350819079203SIlya Dryomov calc_pages_for(0, data->length)); 350919079203SIlya Dryomov } 351019079203SIlya Dryomov } 351119079203SIlya Dryomov lreq->notify_finish_error = return_code; 351219079203SIlya Dryomov complete_all(&lreq->notify_finish_wait); 351319079203SIlya Dryomov } 3514922dab61SIlya Dryomov } else { 3515922dab61SIlya Dryomov /* CEPH_WATCH_EVENT_NOTIFY */ 3516922dab61SIlya Dryomov lwork = lwork_alloc(lreq, do_watch_notify); 3517922dab61SIlya Dryomov if (!lwork) { 3518922dab61SIlya Dryomov pr_err("failed to allocate notify-lwork\n"); 3519922dab61SIlya Dryomov goto out_unlock_lreq; 3520922dab61SIlya Dryomov } 3521922dab61SIlya Dryomov 3522922dab61SIlya Dryomov lwork->notify.notify_id = notify_id; 3523922dab61SIlya Dryomov lwork->notify.notifier_id = notifier_id; 3524922dab61SIlya Dryomov lwork->notify.payload = payload; 3525922dab61SIlya Dryomov lwork->notify.payload_len = payload_len; 3526922dab61SIlya Dryomov lwork->notify.msg = ceph_msg_get(msg); 3527922dab61SIlya Dryomov lwork_queue(lwork); 3528922dab61SIlya Dryomov } 3529922dab61SIlya Dryomov 3530922dab61SIlya Dryomov out_unlock_lreq: 3531922dab61SIlya Dryomov mutex_unlock(&lreq->lock); 3532922dab61SIlya Dryomov out_unlock_osdc: 3533922dab61SIlya Dryomov up_read(&osdc->lock); 3534a40c4f10SYehuda Sadeh return; 3535a40c4f10SYehuda Sadeh 3536a40c4f10SYehuda Sadeh bad: 3537a40c4f10SYehuda Sadeh pr_err("osdc handle_watch_notify corrupt msg\n"); 3538a40c4f10SYehuda Sadeh } 3539a40c4f10SYehuda Sadeh 3540a40c4f10SYehuda Sadeh /* 35413d14c5d2SYehuda Sadeh * Register request, send initial attempt. 35423d14c5d2SYehuda Sadeh */ 35433d14c5d2SYehuda Sadeh int ceph_osdc_start_request(struct ceph_osd_client *osdc, 35443d14c5d2SYehuda Sadeh struct ceph_osd_request *req, 35453d14c5d2SYehuda Sadeh bool nofail) 35463d14c5d2SYehuda Sadeh { 35475aea3dcdSIlya Dryomov down_read(&osdc->lock); 35485aea3dcdSIlya Dryomov submit_request(req, false); 35495aea3dcdSIlya Dryomov up_read(&osdc->lock); 35503d14c5d2SYehuda Sadeh 35515aea3dcdSIlya Dryomov return 0; 35523d14c5d2SYehuda Sadeh } 35533d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_start_request); 35543d14c5d2SYehuda Sadeh 35553d14c5d2SYehuda Sadeh /* 3556c297eb42SIlya Dryomov * Unregister a registered request. The request is not completed: 3557c297eb42SIlya Dryomov * ->r_result isn't set and __complete_request() isn't called. 3558c9f9b93dSIlya Dryomov */ 3559c9f9b93dSIlya Dryomov void ceph_osdc_cancel_request(struct ceph_osd_request *req) 3560c9f9b93dSIlya Dryomov { 3561c9f9b93dSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 3562c9f9b93dSIlya Dryomov 35635aea3dcdSIlya Dryomov down_write(&osdc->lock); 35645aea3dcdSIlya Dryomov if (req->r_osd) 35655aea3dcdSIlya Dryomov cancel_request(req); 35665aea3dcdSIlya Dryomov up_write(&osdc->lock); 3567c9f9b93dSIlya Dryomov } 3568c9f9b93dSIlya Dryomov EXPORT_SYMBOL(ceph_osdc_cancel_request); 3569c9f9b93dSIlya Dryomov 3570c9f9b93dSIlya Dryomov /* 357142b06965SIlya Dryomov * @timeout: in jiffies, 0 means "wait forever" 357242b06965SIlya Dryomov */ 357342b06965SIlya Dryomov static int wait_request_timeout(struct ceph_osd_request *req, 357442b06965SIlya Dryomov unsigned long timeout) 357542b06965SIlya Dryomov { 357642b06965SIlya Dryomov long left; 357742b06965SIlya Dryomov 357842b06965SIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 35790e76abf2SYan, Zheng left = wait_for_completion_killable_timeout(&req->r_completion, 358042b06965SIlya Dryomov ceph_timeout_jiffies(timeout)); 358142b06965SIlya Dryomov if (left <= 0) { 358242b06965SIlya Dryomov left = left ?: -ETIMEDOUT; 358342b06965SIlya Dryomov ceph_osdc_cancel_request(req); 358442b06965SIlya Dryomov } else { 358542b06965SIlya Dryomov left = req->r_result; /* completed */ 358642b06965SIlya Dryomov } 358742b06965SIlya Dryomov 358842b06965SIlya Dryomov return left; 358942b06965SIlya Dryomov } 359042b06965SIlya Dryomov 359142b06965SIlya Dryomov /* 35923d14c5d2SYehuda Sadeh * wait for a request to complete 35933d14c5d2SYehuda Sadeh */ 35943d14c5d2SYehuda Sadeh int ceph_osdc_wait_request(struct ceph_osd_client *osdc, 35953d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 35963d14c5d2SYehuda Sadeh { 359742b06965SIlya Dryomov return wait_request_timeout(req, 0); 35983d14c5d2SYehuda Sadeh } 35993d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_wait_request); 36003d14c5d2SYehuda Sadeh 36013d14c5d2SYehuda Sadeh /* 36023d14c5d2SYehuda Sadeh * sync - wait for all in-flight requests to flush. avoid starvation. 36033d14c5d2SYehuda Sadeh */ 36043d14c5d2SYehuda Sadeh void ceph_osdc_sync(struct ceph_osd_client *osdc) 36053d14c5d2SYehuda Sadeh { 36065aea3dcdSIlya Dryomov struct rb_node *n, *p; 36075aea3dcdSIlya Dryomov u64 last_tid = atomic64_read(&osdc->last_tid); 36083d14c5d2SYehuda Sadeh 36095aea3dcdSIlya Dryomov again: 36105aea3dcdSIlya Dryomov down_read(&osdc->lock); 36115aea3dcdSIlya Dryomov for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { 36125aea3dcdSIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 36135aea3dcdSIlya Dryomov 36145aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 36155aea3dcdSIlya Dryomov for (p = rb_first(&osd->o_requests); p; p = rb_next(p)) { 36165aea3dcdSIlya Dryomov struct ceph_osd_request *req = 36175aea3dcdSIlya Dryomov rb_entry(p, struct ceph_osd_request, r_node); 36185aea3dcdSIlya Dryomov 36193d14c5d2SYehuda Sadeh if (req->r_tid > last_tid) 36203d14c5d2SYehuda Sadeh break; 36213d14c5d2SYehuda Sadeh 36225aea3dcdSIlya Dryomov if (!(req->r_flags & CEPH_OSD_FLAG_WRITE)) 36233d14c5d2SYehuda Sadeh continue; 36243d14c5d2SYehuda Sadeh 36253d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 36265aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 36275aea3dcdSIlya Dryomov up_read(&osdc->lock); 36285aea3dcdSIlya Dryomov dout("%s waiting on req %p tid %llu last_tid %llu\n", 36295aea3dcdSIlya Dryomov __func__, req, req->r_tid, last_tid); 3630b18b9550SIlya Dryomov wait_for_completion(&req->r_completion); 36313d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 36325aea3dcdSIlya Dryomov goto again; 36333d14c5d2SYehuda Sadeh } 36345aea3dcdSIlya Dryomov 36355aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 36365aea3dcdSIlya Dryomov } 36375aea3dcdSIlya Dryomov 36385aea3dcdSIlya Dryomov up_read(&osdc->lock); 36395aea3dcdSIlya Dryomov dout("%s done last_tid %llu\n", __func__, last_tid); 36403d14c5d2SYehuda Sadeh } 36413d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_sync); 36423d14c5d2SYehuda Sadeh 3643922dab61SIlya Dryomov static struct ceph_osd_request * 3644922dab61SIlya Dryomov alloc_linger_request(struct ceph_osd_linger_request *lreq) 3645922dab61SIlya Dryomov { 3646922dab61SIlya Dryomov struct ceph_osd_request *req; 3647922dab61SIlya Dryomov 3648922dab61SIlya Dryomov req = ceph_osdc_alloc_request(lreq->osdc, NULL, 1, false, GFP_NOIO); 3649922dab61SIlya Dryomov if (!req) 3650922dab61SIlya Dryomov return NULL; 3651922dab61SIlya Dryomov 3652922dab61SIlya Dryomov ceph_oid_copy(&req->r_base_oid, &lreq->t.base_oid); 3653922dab61SIlya Dryomov ceph_oloc_copy(&req->r_base_oloc, &lreq->t.base_oloc); 3654922dab61SIlya Dryomov 3655922dab61SIlya Dryomov if (ceph_osdc_alloc_messages(req, GFP_NOIO)) { 3656922dab61SIlya Dryomov ceph_osdc_put_request(req); 3657922dab61SIlya Dryomov return NULL; 3658922dab61SIlya Dryomov } 3659922dab61SIlya Dryomov 3660922dab61SIlya Dryomov return req; 3661922dab61SIlya Dryomov } 3662922dab61SIlya Dryomov 3663922dab61SIlya Dryomov /* 3664922dab61SIlya Dryomov * Returns a handle, caller owns a ref. 3665922dab61SIlya Dryomov */ 3666922dab61SIlya Dryomov struct ceph_osd_linger_request * 3667922dab61SIlya Dryomov ceph_osdc_watch(struct ceph_osd_client *osdc, 3668922dab61SIlya Dryomov struct ceph_object_id *oid, 3669922dab61SIlya Dryomov struct ceph_object_locator *oloc, 3670922dab61SIlya Dryomov rados_watchcb2_t wcb, 3671922dab61SIlya Dryomov rados_watcherrcb_t errcb, 3672922dab61SIlya Dryomov void *data) 3673922dab61SIlya Dryomov { 3674922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq; 3675922dab61SIlya Dryomov int ret; 3676922dab61SIlya Dryomov 3677922dab61SIlya Dryomov lreq = linger_alloc(osdc); 3678922dab61SIlya Dryomov if (!lreq) 3679922dab61SIlya Dryomov return ERR_PTR(-ENOMEM); 3680922dab61SIlya Dryomov 368119079203SIlya Dryomov lreq->is_watch = true; 3682922dab61SIlya Dryomov lreq->wcb = wcb; 3683922dab61SIlya Dryomov lreq->errcb = errcb; 3684922dab61SIlya Dryomov lreq->data = data; 3685b07d3c4bSIlya Dryomov lreq->watch_valid_thru = jiffies; 3686922dab61SIlya Dryomov 3687922dab61SIlya Dryomov ceph_oid_copy(&lreq->t.base_oid, oid); 3688922dab61SIlya Dryomov ceph_oloc_copy(&lreq->t.base_oloc, oloc); 368954ea0046SIlya Dryomov lreq->t.flags = CEPH_OSD_FLAG_WRITE; 36901134e091SDeepa Dinamani ktime_get_real_ts(&lreq->mtime); 3691922dab61SIlya Dryomov 3692922dab61SIlya Dryomov lreq->reg_req = alloc_linger_request(lreq); 3693922dab61SIlya Dryomov if (!lreq->reg_req) { 3694922dab61SIlya Dryomov ret = -ENOMEM; 3695922dab61SIlya Dryomov goto err_put_lreq; 3696922dab61SIlya Dryomov } 3697922dab61SIlya Dryomov 3698922dab61SIlya Dryomov lreq->ping_req = alloc_linger_request(lreq); 3699922dab61SIlya Dryomov if (!lreq->ping_req) { 3700922dab61SIlya Dryomov ret = -ENOMEM; 3701922dab61SIlya Dryomov goto err_put_lreq; 3702922dab61SIlya Dryomov } 3703922dab61SIlya Dryomov 3704922dab61SIlya Dryomov down_write(&osdc->lock); 3705922dab61SIlya Dryomov linger_register(lreq); /* before osd_req_op_* */ 3706922dab61SIlya Dryomov osd_req_op_watch_init(lreq->reg_req, 0, lreq->linger_id, 3707922dab61SIlya Dryomov CEPH_OSD_WATCH_OP_WATCH); 3708922dab61SIlya Dryomov osd_req_op_watch_init(lreq->ping_req, 0, lreq->linger_id, 3709922dab61SIlya Dryomov CEPH_OSD_WATCH_OP_PING); 3710922dab61SIlya Dryomov linger_submit(lreq); 3711922dab61SIlya Dryomov up_write(&osdc->lock); 3712922dab61SIlya Dryomov 3713922dab61SIlya Dryomov ret = linger_reg_commit_wait(lreq); 3714922dab61SIlya Dryomov if (ret) { 3715922dab61SIlya Dryomov linger_cancel(lreq); 3716922dab61SIlya Dryomov goto err_put_lreq; 3717922dab61SIlya Dryomov } 3718922dab61SIlya Dryomov 3719922dab61SIlya Dryomov return lreq; 3720922dab61SIlya Dryomov 3721922dab61SIlya Dryomov err_put_lreq: 3722922dab61SIlya Dryomov linger_put(lreq); 3723922dab61SIlya Dryomov return ERR_PTR(ret); 3724922dab61SIlya Dryomov } 3725922dab61SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_watch); 3726922dab61SIlya Dryomov 3727922dab61SIlya Dryomov /* 3728922dab61SIlya Dryomov * Releases a ref. 3729922dab61SIlya Dryomov * 3730922dab61SIlya Dryomov * Times out after mount_timeout to preserve rbd unmap behaviour 3731922dab61SIlya Dryomov * introduced in 2894e1d76974 ("rbd: timeout watch teardown on unmap 3732922dab61SIlya Dryomov * with mount_timeout"). 3733922dab61SIlya Dryomov */ 3734922dab61SIlya Dryomov int ceph_osdc_unwatch(struct ceph_osd_client *osdc, 3735922dab61SIlya Dryomov struct ceph_osd_linger_request *lreq) 3736922dab61SIlya Dryomov { 3737922dab61SIlya Dryomov struct ceph_options *opts = osdc->client->options; 3738922dab61SIlya Dryomov struct ceph_osd_request *req; 3739922dab61SIlya Dryomov int ret; 3740922dab61SIlya Dryomov 3741922dab61SIlya Dryomov req = ceph_osdc_alloc_request(osdc, NULL, 1, false, GFP_NOIO); 3742922dab61SIlya Dryomov if (!req) 3743922dab61SIlya Dryomov return -ENOMEM; 3744922dab61SIlya Dryomov 3745922dab61SIlya Dryomov ceph_oid_copy(&req->r_base_oid, &lreq->t.base_oid); 3746922dab61SIlya Dryomov ceph_oloc_copy(&req->r_base_oloc, &lreq->t.base_oloc); 374754ea0046SIlya Dryomov req->r_flags = CEPH_OSD_FLAG_WRITE; 37481134e091SDeepa Dinamani ktime_get_real_ts(&req->r_mtime); 3749922dab61SIlya Dryomov osd_req_op_watch_init(req, 0, lreq->linger_id, 3750922dab61SIlya Dryomov CEPH_OSD_WATCH_OP_UNWATCH); 3751922dab61SIlya Dryomov 3752922dab61SIlya Dryomov ret = ceph_osdc_alloc_messages(req, GFP_NOIO); 3753922dab61SIlya Dryomov if (ret) 3754922dab61SIlya Dryomov goto out_put_req; 3755922dab61SIlya Dryomov 3756922dab61SIlya Dryomov ceph_osdc_start_request(osdc, req, false); 3757922dab61SIlya Dryomov linger_cancel(lreq); 3758922dab61SIlya Dryomov linger_put(lreq); 3759922dab61SIlya Dryomov ret = wait_request_timeout(req, opts->mount_timeout); 3760922dab61SIlya Dryomov 3761922dab61SIlya Dryomov out_put_req: 3762922dab61SIlya Dryomov ceph_osdc_put_request(req); 3763922dab61SIlya Dryomov return ret; 3764922dab61SIlya Dryomov } 3765922dab61SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_unwatch); 3766922dab61SIlya Dryomov 3767922dab61SIlya Dryomov static int osd_req_op_notify_ack_init(struct ceph_osd_request *req, int which, 3768922dab61SIlya Dryomov u64 notify_id, u64 cookie, void *payload, 3769922dab61SIlya Dryomov size_t payload_len) 3770922dab61SIlya Dryomov { 3771922dab61SIlya Dryomov struct ceph_osd_req_op *op; 3772922dab61SIlya Dryomov struct ceph_pagelist *pl; 3773922dab61SIlya Dryomov int ret; 3774922dab61SIlya Dryomov 3775922dab61SIlya Dryomov op = _osd_req_op_init(req, which, CEPH_OSD_OP_NOTIFY_ACK, 0); 3776922dab61SIlya Dryomov 3777922dab61SIlya Dryomov pl = kmalloc(sizeof(*pl), GFP_NOIO); 3778922dab61SIlya Dryomov if (!pl) 3779922dab61SIlya Dryomov return -ENOMEM; 3780922dab61SIlya Dryomov 3781922dab61SIlya Dryomov ceph_pagelist_init(pl); 3782922dab61SIlya Dryomov ret = ceph_pagelist_encode_64(pl, notify_id); 3783922dab61SIlya Dryomov ret |= ceph_pagelist_encode_64(pl, cookie); 3784922dab61SIlya Dryomov if (payload) { 3785922dab61SIlya Dryomov ret |= ceph_pagelist_encode_32(pl, payload_len); 3786922dab61SIlya Dryomov ret |= ceph_pagelist_append(pl, payload, payload_len); 3787922dab61SIlya Dryomov } else { 3788922dab61SIlya Dryomov ret |= ceph_pagelist_encode_32(pl, 0); 3789922dab61SIlya Dryomov } 3790922dab61SIlya Dryomov if (ret) { 3791922dab61SIlya Dryomov ceph_pagelist_release(pl); 3792922dab61SIlya Dryomov return -ENOMEM; 3793922dab61SIlya Dryomov } 3794922dab61SIlya Dryomov 3795922dab61SIlya Dryomov ceph_osd_data_pagelist_init(&op->notify_ack.request_data, pl); 3796922dab61SIlya Dryomov op->indata_len = pl->length; 3797922dab61SIlya Dryomov return 0; 3798922dab61SIlya Dryomov } 3799922dab61SIlya Dryomov 3800922dab61SIlya Dryomov int ceph_osdc_notify_ack(struct ceph_osd_client *osdc, 3801922dab61SIlya Dryomov struct ceph_object_id *oid, 3802922dab61SIlya Dryomov struct ceph_object_locator *oloc, 3803922dab61SIlya Dryomov u64 notify_id, 3804922dab61SIlya Dryomov u64 cookie, 3805922dab61SIlya Dryomov void *payload, 3806922dab61SIlya Dryomov size_t payload_len) 3807922dab61SIlya Dryomov { 3808922dab61SIlya Dryomov struct ceph_osd_request *req; 3809922dab61SIlya Dryomov int ret; 3810922dab61SIlya Dryomov 3811922dab61SIlya Dryomov req = ceph_osdc_alloc_request(osdc, NULL, 1, false, GFP_NOIO); 3812922dab61SIlya Dryomov if (!req) 3813922dab61SIlya Dryomov return -ENOMEM; 3814922dab61SIlya Dryomov 3815922dab61SIlya Dryomov ceph_oid_copy(&req->r_base_oid, oid); 3816922dab61SIlya Dryomov ceph_oloc_copy(&req->r_base_oloc, oloc); 3817922dab61SIlya Dryomov req->r_flags = CEPH_OSD_FLAG_READ; 3818922dab61SIlya Dryomov 3819922dab61SIlya Dryomov ret = ceph_osdc_alloc_messages(req, GFP_NOIO); 3820922dab61SIlya Dryomov if (ret) 3821922dab61SIlya Dryomov goto out_put_req; 3822922dab61SIlya Dryomov 3823922dab61SIlya Dryomov ret = osd_req_op_notify_ack_init(req, 0, notify_id, cookie, payload, 3824922dab61SIlya Dryomov payload_len); 3825922dab61SIlya Dryomov if (ret) 3826922dab61SIlya Dryomov goto out_put_req; 3827922dab61SIlya Dryomov 3828922dab61SIlya Dryomov ceph_osdc_start_request(osdc, req, false); 3829922dab61SIlya Dryomov ret = ceph_osdc_wait_request(osdc, req); 3830922dab61SIlya Dryomov 3831922dab61SIlya Dryomov out_put_req: 3832922dab61SIlya Dryomov ceph_osdc_put_request(req); 3833922dab61SIlya Dryomov return ret; 3834922dab61SIlya Dryomov } 3835922dab61SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_notify_ack); 3836922dab61SIlya Dryomov 383719079203SIlya Dryomov static int osd_req_op_notify_init(struct ceph_osd_request *req, int which, 383819079203SIlya Dryomov u64 cookie, u32 prot_ver, u32 timeout, 383919079203SIlya Dryomov void *payload, size_t payload_len) 384019079203SIlya Dryomov { 384119079203SIlya Dryomov struct ceph_osd_req_op *op; 384219079203SIlya Dryomov struct ceph_pagelist *pl; 384319079203SIlya Dryomov int ret; 384419079203SIlya Dryomov 384519079203SIlya Dryomov op = _osd_req_op_init(req, which, CEPH_OSD_OP_NOTIFY, 0); 384619079203SIlya Dryomov op->notify.cookie = cookie; 384719079203SIlya Dryomov 384819079203SIlya Dryomov pl = kmalloc(sizeof(*pl), GFP_NOIO); 384919079203SIlya Dryomov if (!pl) 385019079203SIlya Dryomov return -ENOMEM; 385119079203SIlya Dryomov 385219079203SIlya Dryomov ceph_pagelist_init(pl); 385319079203SIlya Dryomov ret = ceph_pagelist_encode_32(pl, 1); /* prot_ver */ 385419079203SIlya Dryomov ret |= ceph_pagelist_encode_32(pl, timeout); 385519079203SIlya Dryomov ret |= ceph_pagelist_encode_32(pl, payload_len); 385619079203SIlya Dryomov ret |= ceph_pagelist_append(pl, payload, payload_len); 385719079203SIlya Dryomov if (ret) { 385819079203SIlya Dryomov ceph_pagelist_release(pl); 385919079203SIlya Dryomov return -ENOMEM; 386019079203SIlya Dryomov } 386119079203SIlya Dryomov 386219079203SIlya Dryomov ceph_osd_data_pagelist_init(&op->notify.request_data, pl); 386319079203SIlya Dryomov op->indata_len = pl->length; 386419079203SIlya Dryomov return 0; 386519079203SIlya Dryomov } 386619079203SIlya Dryomov 386719079203SIlya Dryomov /* 386819079203SIlya Dryomov * @timeout: in seconds 386919079203SIlya Dryomov * 387019079203SIlya Dryomov * @preply_{pages,len} are initialized both on success and error. 387119079203SIlya Dryomov * The caller is responsible for: 387219079203SIlya Dryomov * 387319079203SIlya Dryomov * ceph_release_page_vector(reply_pages, calc_pages_for(0, reply_len)) 387419079203SIlya Dryomov */ 387519079203SIlya Dryomov int ceph_osdc_notify(struct ceph_osd_client *osdc, 387619079203SIlya Dryomov struct ceph_object_id *oid, 387719079203SIlya Dryomov struct ceph_object_locator *oloc, 387819079203SIlya Dryomov void *payload, 387919079203SIlya Dryomov size_t payload_len, 388019079203SIlya Dryomov u32 timeout, 388119079203SIlya Dryomov struct page ***preply_pages, 388219079203SIlya Dryomov size_t *preply_len) 388319079203SIlya Dryomov { 388419079203SIlya Dryomov struct ceph_osd_linger_request *lreq; 388519079203SIlya Dryomov struct page **pages; 388619079203SIlya Dryomov int ret; 388719079203SIlya Dryomov 388819079203SIlya Dryomov WARN_ON(!timeout); 388919079203SIlya Dryomov if (preply_pages) { 389019079203SIlya Dryomov *preply_pages = NULL; 389119079203SIlya Dryomov *preply_len = 0; 389219079203SIlya Dryomov } 389319079203SIlya Dryomov 389419079203SIlya Dryomov lreq = linger_alloc(osdc); 389519079203SIlya Dryomov if (!lreq) 389619079203SIlya Dryomov return -ENOMEM; 389719079203SIlya Dryomov 389819079203SIlya Dryomov lreq->preply_pages = preply_pages; 389919079203SIlya Dryomov lreq->preply_len = preply_len; 390019079203SIlya Dryomov 390119079203SIlya Dryomov ceph_oid_copy(&lreq->t.base_oid, oid); 390219079203SIlya Dryomov ceph_oloc_copy(&lreq->t.base_oloc, oloc); 390319079203SIlya Dryomov lreq->t.flags = CEPH_OSD_FLAG_READ; 390419079203SIlya Dryomov 390519079203SIlya Dryomov lreq->reg_req = alloc_linger_request(lreq); 390619079203SIlya Dryomov if (!lreq->reg_req) { 390719079203SIlya Dryomov ret = -ENOMEM; 390819079203SIlya Dryomov goto out_put_lreq; 390919079203SIlya Dryomov } 391019079203SIlya Dryomov 391119079203SIlya Dryomov /* for notify_id */ 391219079203SIlya Dryomov pages = ceph_alloc_page_vector(1, GFP_NOIO); 391319079203SIlya Dryomov if (IS_ERR(pages)) { 391419079203SIlya Dryomov ret = PTR_ERR(pages); 391519079203SIlya Dryomov goto out_put_lreq; 391619079203SIlya Dryomov } 391719079203SIlya Dryomov 391819079203SIlya Dryomov down_write(&osdc->lock); 391919079203SIlya Dryomov linger_register(lreq); /* before osd_req_op_* */ 392019079203SIlya Dryomov ret = osd_req_op_notify_init(lreq->reg_req, 0, lreq->linger_id, 1, 392119079203SIlya Dryomov timeout, payload, payload_len); 392219079203SIlya Dryomov if (ret) { 392319079203SIlya Dryomov linger_unregister(lreq); 392419079203SIlya Dryomov up_write(&osdc->lock); 392519079203SIlya Dryomov ceph_release_page_vector(pages, 1); 392619079203SIlya Dryomov goto out_put_lreq; 392719079203SIlya Dryomov } 392819079203SIlya Dryomov ceph_osd_data_pages_init(osd_req_op_data(lreq->reg_req, 0, notify, 392919079203SIlya Dryomov response_data), 393019079203SIlya Dryomov pages, PAGE_SIZE, 0, false, true); 393119079203SIlya Dryomov linger_submit(lreq); 393219079203SIlya Dryomov up_write(&osdc->lock); 393319079203SIlya Dryomov 393419079203SIlya Dryomov ret = linger_reg_commit_wait(lreq); 393519079203SIlya Dryomov if (!ret) 393619079203SIlya Dryomov ret = linger_notify_finish_wait(lreq); 393719079203SIlya Dryomov else 393819079203SIlya Dryomov dout("lreq %p failed to initiate notify %d\n", lreq, ret); 393919079203SIlya Dryomov 394019079203SIlya Dryomov linger_cancel(lreq); 394119079203SIlya Dryomov out_put_lreq: 394219079203SIlya Dryomov linger_put(lreq); 394319079203SIlya Dryomov return ret; 394419079203SIlya Dryomov } 394519079203SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_notify); 394619079203SIlya Dryomov 39473d14c5d2SYehuda Sadeh /* 3948b07d3c4bSIlya Dryomov * Return the number of milliseconds since the watch was last 3949b07d3c4bSIlya Dryomov * confirmed, or an error. If there is an error, the watch is no 3950b07d3c4bSIlya Dryomov * longer valid, and should be destroyed with ceph_osdc_unwatch(). 3951b07d3c4bSIlya Dryomov */ 3952b07d3c4bSIlya Dryomov int ceph_osdc_watch_check(struct ceph_osd_client *osdc, 3953b07d3c4bSIlya Dryomov struct ceph_osd_linger_request *lreq) 3954b07d3c4bSIlya Dryomov { 3955b07d3c4bSIlya Dryomov unsigned long stamp, age; 3956b07d3c4bSIlya Dryomov int ret; 3957b07d3c4bSIlya Dryomov 3958b07d3c4bSIlya Dryomov down_read(&osdc->lock); 3959b07d3c4bSIlya Dryomov mutex_lock(&lreq->lock); 3960b07d3c4bSIlya Dryomov stamp = lreq->watch_valid_thru; 3961b07d3c4bSIlya Dryomov if (!list_empty(&lreq->pending_lworks)) { 3962b07d3c4bSIlya Dryomov struct linger_work *lwork = 3963b07d3c4bSIlya Dryomov list_first_entry(&lreq->pending_lworks, 3964b07d3c4bSIlya Dryomov struct linger_work, 3965b07d3c4bSIlya Dryomov pending_item); 3966b07d3c4bSIlya Dryomov 3967b07d3c4bSIlya Dryomov if (time_before(lwork->queued_stamp, stamp)) 3968b07d3c4bSIlya Dryomov stamp = lwork->queued_stamp; 3969b07d3c4bSIlya Dryomov } 3970b07d3c4bSIlya Dryomov age = jiffies - stamp; 3971b07d3c4bSIlya Dryomov dout("%s lreq %p linger_id %llu age %lu last_error %d\n", __func__, 3972b07d3c4bSIlya Dryomov lreq, lreq->linger_id, age, lreq->last_error); 3973b07d3c4bSIlya Dryomov /* we are truncating to msecs, so return a safe upper bound */ 3974b07d3c4bSIlya Dryomov ret = lreq->last_error ?: 1 + jiffies_to_msecs(age); 3975b07d3c4bSIlya Dryomov 3976b07d3c4bSIlya Dryomov mutex_unlock(&lreq->lock); 3977b07d3c4bSIlya Dryomov up_read(&osdc->lock); 3978b07d3c4bSIlya Dryomov return ret; 3979b07d3c4bSIlya Dryomov } 3980b07d3c4bSIlya Dryomov 3981a4ed38d7SDouglas Fuller static int decode_watcher(void **p, void *end, struct ceph_watch_item *item) 3982a4ed38d7SDouglas Fuller { 3983a4ed38d7SDouglas Fuller u8 struct_v; 3984a4ed38d7SDouglas Fuller u32 struct_len; 3985a4ed38d7SDouglas Fuller int ret; 3986a4ed38d7SDouglas Fuller 3987a4ed38d7SDouglas Fuller ret = ceph_start_decoding(p, end, 2, "watch_item_t", 3988a4ed38d7SDouglas Fuller &struct_v, &struct_len); 3989a4ed38d7SDouglas Fuller if (ret) 3990a4ed38d7SDouglas Fuller return ret; 3991a4ed38d7SDouglas Fuller 3992a4ed38d7SDouglas Fuller ceph_decode_copy(p, &item->name, sizeof(item->name)); 3993a4ed38d7SDouglas Fuller item->cookie = ceph_decode_64(p); 3994a4ed38d7SDouglas Fuller *p += 4; /* skip timeout_seconds */ 3995a4ed38d7SDouglas Fuller if (struct_v >= 2) { 3996a4ed38d7SDouglas Fuller ceph_decode_copy(p, &item->addr, sizeof(item->addr)); 3997a4ed38d7SDouglas Fuller ceph_decode_addr(&item->addr); 3998a4ed38d7SDouglas Fuller } 3999a4ed38d7SDouglas Fuller 4000a4ed38d7SDouglas Fuller dout("%s %s%llu cookie %llu addr %s\n", __func__, 4001a4ed38d7SDouglas Fuller ENTITY_NAME(item->name), item->cookie, 4002a4ed38d7SDouglas Fuller ceph_pr_addr(&item->addr.in_addr)); 4003a4ed38d7SDouglas Fuller return 0; 4004a4ed38d7SDouglas Fuller } 4005a4ed38d7SDouglas Fuller 4006a4ed38d7SDouglas Fuller static int decode_watchers(void **p, void *end, 4007a4ed38d7SDouglas Fuller struct ceph_watch_item **watchers, 4008a4ed38d7SDouglas Fuller u32 *num_watchers) 4009a4ed38d7SDouglas Fuller { 4010a4ed38d7SDouglas Fuller u8 struct_v; 4011a4ed38d7SDouglas Fuller u32 struct_len; 4012a4ed38d7SDouglas Fuller int i; 4013a4ed38d7SDouglas Fuller int ret; 4014a4ed38d7SDouglas Fuller 4015a4ed38d7SDouglas Fuller ret = ceph_start_decoding(p, end, 1, "obj_list_watch_response_t", 4016a4ed38d7SDouglas Fuller &struct_v, &struct_len); 4017a4ed38d7SDouglas Fuller if (ret) 4018a4ed38d7SDouglas Fuller return ret; 4019a4ed38d7SDouglas Fuller 4020a4ed38d7SDouglas Fuller *num_watchers = ceph_decode_32(p); 4021a4ed38d7SDouglas Fuller *watchers = kcalloc(*num_watchers, sizeof(**watchers), GFP_NOIO); 4022a4ed38d7SDouglas Fuller if (!*watchers) 4023a4ed38d7SDouglas Fuller return -ENOMEM; 4024a4ed38d7SDouglas Fuller 4025a4ed38d7SDouglas Fuller for (i = 0; i < *num_watchers; i++) { 4026a4ed38d7SDouglas Fuller ret = decode_watcher(p, end, *watchers + i); 4027a4ed38d7SDouglas Fuller if (ret) { 4028a4ed38d7SDouglas Fuller kfree(*watchers); 4029a4ed38d7SDouglas Fuller return ret; 4030a4ed38d7SDouglas Fuller } 4031a4ed38d7SDouglas Fuller } 4032a4ed38d7SDouglas Fuller 4033a4ed38d7SDouglas Fuller return 0; 4034a4ed38d7SDouglas Fuller } 4035a4ed38d7SDouglas Fuller 4036a4ed38d7SDouglas Fuller /* 4037a4ed38d7SDouglas Fuller * On success, the caller is responsible for: 4038a4ed38d7SDouglas Fuller * 4039a4ed38d7SDouglas Fuller * kfree(watchers); 4040a4ed38d7SDouglas Fuller */ 4041a4ed38d7SDouglas Fuller int ceph_osdc_list_watchers(struct ceph_osd_client *osdc, 4042a4ed38d7SDouglas Fuller struct ceph_object_id *oid, 4043a4ed38d7SDouglas Fuller struct ceph_object_locator *oloc, 4044a4ed38d7SDouglas Fuller struct ceph_watch_item **watchers, 4045a4ed38d7SDouglas Fuller u32 *num_watchers) 4046a4ed38d7SDouglas Fuller { 4047a4ed38d7SDouglas Fuller struct ceph_osd_request *req; 4048a4ed38d7SDouglas Fuller struct page **pages; 4049a4ed38d7SDouglas Fuller int ret; 4050a4ed38d7SDouglas Fuller 4051a4ed38d7SDouglas Fuller req = ceph_osdc_alloc_request(osdc, NULL, 1, false, GFP_NOIO); 4052a4ed38d7SDouglas Fuller if (!req) 4053a4ed38d7SDouglas Fuller return -ENOMEM; 4054a4ed38d7SDouglas Fuller 4055a4ed38d7SDouglas Fuller ceph_oid_copy(&req->r_base_oid, oid); 4056a4ed38d7SDouglas Fuller ceph_oloc_copy(&req->r_base_oloc, oloc); 4057a4ed38d7SDouglas Fuller req->r_flags = CEPH_OSD_FLAG_READ; 4058a4ed38d7SDouglas Fuller 4059a4ed38d7SDouglas Fuller ret = ceph_osdc_alloc_messages(req, GFP_NOIO); 4060a4ed38d7SDouglas Fuller if (ret) 4061a4ed38d7SDouglas Fuller goto out_put_req; 4062a4ed38d7SDouglas Fuller 4063a4ed38d7SDouglas Fuller pages = ceph_alloc_page_vector(1, GFP_NOIO); 4064a4ed38d7SDouglas Fuller if (IS_ERR(pages)) { 4065a4ed38d7SDouglas Fuller ret = PTR_ERR(pages); 4066a4ed38d7SDouglas Fuller goto out_put_req; 4067a4ed38d7SDouglas Fuller } 4068a4ed38d7SDouglas Fuller 4069a4ed38d7SDouglas Fuller osd_req_op_init(req, 0, CEPH_OSD_OP_LIST_WATCHERS, 0); 4070a4ed38d7SDouglas Fuller ceph_osd_data_pages_init(osd_req_op_data(req, 0, list_watchers, 4071a4ed38d7SDouglas Fuller response_data), 4072a4ed38d7SDouglas Fuller pages, PAGE_SIZE, 0, false, true); 4073a4ed38d7SDouglas Fuller 4074a4ed38d7SDouglas Fuller ceph_osdc_start_request(osdc, req, false); 4075a4ed38d7SDouglas Fuller ret = ceph_osdc_wait_request(osdc, req); 4076a4ed38d7SDouglas Fuller if (ret >= 0) { 4077a4ed38d7SDouglas Fuller void *p = page_address(pages[0]); 4078a4ed38d7SDouglas Fuller void *const end = p + req->r_ops[0].outdata_len; 4079a4ed38d7SDouglas Fuller 4080a4ed38d7SDouglas Fuller ret = decode_watchers(&p, end, watchers, num_watchers); 4081a4ed38d7SDouglas Fuller } 4082a4ed38d7SDouglas Fuller 4083a4ed38d7SDouglas Fuller out_put_req: 4084a4ed38d7SDouglas Fuller ceph_osdc_put_request(req); 4085a4ed38d7SDouglas Fuller return ret; 4086a4ed38d7SDouglas Fuller } 4087a4ed38d7SDouglas Fuller EXPORT_SYMBOL(ceph_osdc_list_watchers); 4088a4ed38d7SDouglas Fuller 4089b07d3c4bSIlya Dryomov /* 4090dd935f44SJosh Durgin * Call all pending notify callbacks - for use after a watch is 4091dd935f44SJosh Durgin * unregistered, to make sure no more callbacks for it will be invoked 4092dd935f44SJosh Durgin */ 4093f6479449Sstephen hemminger void ceph_osdc_flush_notifies(struct ceph_osd_client *osdc) 4094dd935f44SJosh Durgin { 409599d16943SIlya Dryomov dout("%s osdc %p\n", __func__, osdc); 4096dd935f44SJosh Durgin flush_workqueue(osdc->notify_wq); 4097dd935f44SJosh Durgin } 4098dd935f44SJosh Durgin EXPORT_SYMBOL(ceph_osdc_flush_notifies); 4099dd935f44SJosh Durgin 41007cca78c9SIlya Dryomov void ceph_osdc_maybe_request_map(struct ceph_osd_client *osdc) 41017cca78c9SIlya Dryomov { 41027cca78c9SIlya Dryomov down_read(&osdc->lock); 41037cca78c9SIlya Dryomov maybe_request_map(osdc); 41047cca78c9SIlya Dryomov up_read(&osdc->lock); 41057cca78c9SIlya Dryomov } 41067cca78c9SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_maybe_request_map); 4107dd935f44SJosh Durgin 4108dd935f44SJosh Durgin /* 4109428a7158SDouglas Fuller * Execute an OSD class method on an object. 4110428a7158SDouglas Fuller * 4111428a7158SDouglas Fuller * @flags: CEPH_OSD_FLAG_* 41122544a020SIlya Dryomov * @resp_len: in/out param for reply length 4113428a7158SDouglas Fuller */ 4114428a7158SDouglas Fuller int ceph_osdc_call(struct ceph_osd_client *osdc, 4115428a7158SDouglas Fuller struct ceph_object_id *oid, 4116428a7158SDouglas Fuller struct ceph_object_locator *oloc, 4117428a7158SDouglas Fuller const char *class, const char *method, 4118428a7158SDouglas Fuller unsigned int flags, 4119428a7158SDouglas Fuller struct page *req_page, size_t req_len, 4120428a7158SDouglas Fuller struct page *resp_page, size_t *resp_len) 4121428a7158SDouglas Fuller { 4122428a7158SDouglas Fuller struct ceph_osd_request *req; 4123428a7158SDouglas Fuller int ret; 4124428a7158SDouglas Fuller 41252544a020SIlya Dryomov if (req_len > PAGE_SIZE || (resp_page && *resp_len > PAGE_SIZE)) 41262544a020SIlya Dryomov return -E2BIG; 41272544a020SIlya Dryomov 4128428a7158SDouglas Fuller req = ceph_osdc_alloc_request(osdc, NULL, 1, false, GFP_NOIO); 4129428a7158SDouglas Fuller if (!req) 4130428a7158SDouglas Fuller return -ENOMEM; 4131428a7158SDouglas Fuller 4132428a7158SDouglas Fuller ceph_oid_copy(&req->r_base_oid, oid); 4133428a7158SDouglas Fuller ceph_oloc_copy(&req->r_base_oloc, oloc); 4134428a7158SDouglas Fuller req->r_flags = flags; 4135428a7158SDouglas Fuller 4136428a7158SDouglas Fuller ret = ceph_osdc_alloc_messages(req, GFP_NOIO); 4137428a7158SDouglas Fuller if (ret) 4138428a7158SDouglas Fuller goto out_put_req; 4139428a7158SDouglas Fuller 4140428a7158SDouglas Fuller osd_req_op_cls_init(req, 0, CEPH_OSD_OP_CALL, class, method); 4141428a7158SDouglas Fuller if (req_page) 4142428a7158SDouglas Fuller osd_req_op_cls_request_data_pages(req, 0, &req_page, req_len, 4143428a7158SDouglas Fuller 0, false, false); 4144428a7158SDouglas Fuller if (resp_page) 4145428a7158SDouglas Fuller osd_req_op_cls_response_data_pages(req, 0, &resp_page, 41462544a020SIlya Dryomov *resp_len, 0, false, false); 4147428a7158SDouglas Fuller 4148428a7158SDouglas Fuller ceph_osdc_start_request(osdc, req, false); 4149428a7158SDouglas Fuller ret = ceph_osdc_wait_request(osdc, req); 4150428a7158SDouglas Fuller if (ret >= 0) { 4151428a7158SDouglas Fuller ret = req->r_ops[0].rval; 4152428a7158SDouglas Fuller if (resp_page) 4153428a7158SDouglas Fuller *resp_len = req->r_ops[0].outdata_len; 4154428a7158SDouglas Fuller } 4155428a7158SDouglas Fuller 4156428a7158SDouglas Fuller out_put_req: 4157428a7158SDouglas Fuller ceph_osdc_put_request(req); 4158428a7158SDouglas Fuller return ret; 4159428a7158SDouglas Fuller } 4160428a7158SDouglas Fuller EXPORT_SYMBOL(ceph_osdc_call); 4161428a7158SDouglas Fuller 4162428a7158SDouglas Fuller /* 41633d14c5d2SYehuda Sadeh * init, shutdown 41643d14c5d2SYehuda Sadeh */ 41653d14c5d2SYehuda Sadeh int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) 41663d14c5d2SYehuda Sadeh { 41673d14c5d2SYehuda Sadeh int err; 41683d14c5d2SYehuda Sadeh 41693d14c5d2SYehuda Sadeh dout("init\n"); 41703d14c5d2SYehuda Sadeh osdc->client = client; 41715aea3dcdSIlya Dryomov init_rwsem(&osdc->lock); 41723d14c5d2SYehuda Sadeh osdc->osds = RB_ROOT; 41733d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osdc->osd_lru); 41749dd2845cSIlya Dryomov spin_lock_init(&osdc->osd_lru_lock); 41755aea3dcdSIlya Dryomov osd_init(&osdc->homeless_osd); 41765aea3dcdSIlya Dryomov osdc->homeless_osd.o_osdc = osdc; 41775aea3dcdSIlya Dryomov osdc->homeless_osd.o_osd = CEPH_HOMELESS_OSD; 4178264048afSIlya Dryomov osdc->last_linger_id = CEPH_LINGER_ID_START; 4179922dab61SIlya Dryomov osdc->linger_requests = RB_ROOT; 41804609245eSIlya Dryomov osdc->map_checks = RB_ROOT; 41814609245eSIlya Dryomov osdc->linger_map_checks = RB_ROOT; 41823d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->timeout_work, handle_timeout); 41833d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->osds_timeout_work, handle_osds_timeout); 41843d14c5d2SYehuda Sadeh 41853d14c5d2SYehuda Sadeh err = -ENOMEM; 4186e5253a7bSIlya Dryomov osdc->osdmap = ceph_osdmap_alloc(); 4187e5253a7bSIlya Dryomov if (!osdc->osdmap) 4188e5253a7bSIlya Dryomov goto out; 4189e5253a7bSIlya Dryomov 41909e767adbSIlya Dryomov osdc->req_mempool = mempool_create_slab_pool(10, 41919e767adbSIlya Dryomov ceph_osd_request_cache); 41923d14c5d2SYehuda Sadeh if (!osdc->req_mempool) 4193e5253a7bSIlya Dryomov goto out_map; 41943d14c5d2SYehuda Sadeh 4195d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op, CEPH_MSG_OSD_OP, 4196711da55dSIlya Dryomov PAGE_SIZE, 10, true, "osd_op"); 41973d14c5d2SYehuda Sadeh if (err < 0) 41983d14c5d2SYehuda Sadeh goto out_mempool; 4199d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op_reply, CEPH_MSG_OSD_OPREPLY, 4200711da55dSIlya Dryomov PAGE_SIZE, 10, true, "osd_op_reply"); 42013d14c5d2SYehuda Sadeh if (err < 0) 42023d14c5d2SYehuda Sadeh goto out_msgpool; 4203a40c4f10SYehuda Sadeh 4204dbcae088SDan Carpenter err = -ENOMEM; 4205a40c4f10SYehuda Sadeh osdc->notify_wq = create_singlethread_workqueue("ceph-watch-notify"); 4206dbcae088SDan Carpenter if (!osdc->notify_wq) 4207c172ec5cSIlya Dryomov goto out_msgpool_reply; 4208c172ec5cSIlya Dryomov 4209fbca9635SIlya Dryomov schedule_delayed_work(&osdc->timeout_work, 4210fbca9635SIlya Dryomov osdc->client->options->osd_keepalive_timeout); 4211b37ee1b9SIlya Dryomov schedule_delayed_work(&osdc->osds_timeout_work, 4212b37ee1b9SIlya Dryomov round_jiffies_relative(osdc->client->options->osd_idle_ttl)); 4213b37ee1b9SIlya Dryomov 42143d14c5d2SYehuda Sadeh return 0; 42153d14c5d2SYehuda Sadeh 4216c172ec5cSIlya Dryomov out_msgpool_reply: 4217c172ec5cSIlya Dryomov ceph_msgpool_destroy(&osdc->msgpool_op_reply); 42183d14c5d2SYehuda Sadeh out_msgpool: 42193d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 42203d14c5d2SYehuda Sadeh out_mempool: 42213d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 4222e5253a7bSIlya Dryomov out_map: 4223e5253a7bSIlya Dryomov ceph_osdmap_destroy(osdc->osdmap); 42243d14c5d2SYehuda Sadeh out: 42253d14c5d2SYehuda Sadeh return err; 42263d14c5d2SYehuda Sadeh } 42273d14c5d2SYehuda Sadeh 42283d14c5d2SYehuda Sadeh void ceph_osdc_stop(struct ceph_osd_client *osdc) 42293d14c5d2SYehuda Sadeh { 4230a40c4f10SYehuda Sadeh flush_workqueue(osdc->notify_wq); 4231a40c4f10SYehuda Sadeh destroy_workqueue(osdc->notify_wq); 42323d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->timeout_work); 42333d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->osds_timeout_work); 423442a2c09fSIlya Dryomov 42355aea3dcdSIlya Dryomov down_write(&osdc->lock); 423642a2c09fSIlya Dryomov while (!RB_EMPTY_ROOT(&osdc->osds)) { 423742a2c09fSIlya Dryomov struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds), 423842a2c09fSIlya Dryomov struct ceph_osd, o_node); 42395aea3dcdSIlya Dryomov close_osd(osd); 424042a2c09fSIlya Dryomov } 42415aea3dcdSIlya Dryomov up_write(&osdc->lock); 424202113a0fSElena Reshetova WARN_ON(refcount_read(&osdc->homeless_osd.o_ref) != 1); 42435aea3dcdSIlya Dryomov osd_cleanup(&osdc->homeless_osd); 42445aea3dcdSIlya Dryomov 42455aea3dcdSIlya Dryomov WARN_ON(!list_empty(&osdc->osd_lru)); 4246922dab61SIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osdc->linger_requests)); 42474609245eSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osdc->map_checks)); 42484609245eSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osdc->linger_map_checks)); 42495aea3dcdSIlya Dryomov WARN_ON(atomic_read(&osdc->num_requests)); 42505aea3dcdSIlya Dryomov WARN_ON(atomic_read(&osdc->num_homeless)); 425142a2c09fSIlya Dryomov 42523d14c5d2SYehuda Sadeh ceph_osdmap_destroy(osdc->osdmap); 42533d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 42543d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 42553d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op_reply); 42563d14c5d2SYehuda Sadeh } 42573d14c5d2SYehuda Sadeh 42583d14c5d2SYehuda Sadeh /* 42593d14c5d2SYehuda Sadeh * Read some contiguous pages. If we cross a stripe boundary, shorten 42603d14c5d2SYehuda Sadeh * *plen. Return number of bytes read, or error. 42613d14c5d2SYehuda Sadeh */ 42623d14c5d2SYehuda Sadeh int ceph_osdc_readpages(struct ceph_osd_client *osdc, 42633d14c5d2SYehuda Sadeh struct ceph_vino vino, struct ceph_file_layout *layout, 42643d14c5d2SYehuda Sadeh u64 off, u64 *plen, 42653d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 4266b7495fc2SSage Weil struct page **pages, int num_pages, int page_align) 42673d14c5d2SYehuda Sadeh { 42683d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 42693d14c5d2SYehuda Sadeh int rc = 0; 42703d14c5d2SYehuda Sadeh 42713d14c5d2SYehuda Sadeh dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino, 42723d14c5d2SYehuda Sadeh vino.snap, off, *plen); 4273715e4cd4SYan, Zheng req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 0, 1, 42743d14c5d2SYehuda Sadeh CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, 4275acead002SAlex Elder NULL, truncate_seq, truncate_size, 4276153e5167SAlex Elder false); 42776816282dSSage Weil if (IS_ERR(req)) 42786816282dSSage Weil return PTR_ERR(req); 42793d14c5d2SYehuda Sadeh 42803d14c5d2SYehuda Sadeh /* it may be a short read due to an object boundary */ 4281406e2c9fSAlex Elder osd_req_op_extent_osd_data_pages(req, 0, 4282a4ce40a9SAlex Elder pages, *plen, page_align, false, false); 42833d14c5d2SYehuda Sadeh 4284e0c59487SAlex Elder dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n", 428543bfe5deSAlex Elder off, *plen, *plen, page_align); 42863d14c5d2SYehuda Sadeh 42873d14c5d2SYehuda Sadeh rc = ceph_osdc_start_request(osdc, req, false); 42883d14c5d2SYehuda Sadeh if (!rc) 42893d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 42903d14c5d2SYehuda Sadeh 42913d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 42923d14c5d2SYehuda Sadeh dout("readpages result %d\n", rc); 42933d14c5d2SYehuda Sadeh return rc; 42943d14c5d2SYehuda Sadeh } 42953d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_readpages); 42963d14c5d2SYehuda Sadeh 42973d14c5d2SYehuda Sadeh /* 42983d14c5d2SYehuda Sadeh * do a synchronous write on N pages 42993d14c5d2SYehuda Sadeh */ 43003d14c5d2SYehuda Sadeh int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, 43013d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 43023d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 43033d14c5d2SYehuda Sadeh u64 off, u64 len, 43043d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 43053d14c5d2SYehuda Sadeh struct timespec *mtime, 430624808826SAlex Elder struct page **pages, int num_pages) 43073d14c5d2SYehuda Sadeh { 43083d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 43093d14c5d2SYehuda Sadeh int rc = 0; 4310b7495fc2SSage Weil int page_align = off & ~PAGE_MASK; 43113d14c5d2SYehuda Sadeh 4312715e4cd4SYan, Zheng req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 0, 1, 431354ea0046SIlya Dryomov CEPH_OSD_OP_WRITE, CEPH_OSD_FLAG_WRITE, 4314acead002SAlex Elder snapc, truncate_seq, truncate_size, 4315153e5167SAlex Elder true); 43166816282dSSage Weil if (IS_ERR(req)) 43176816282dSSage Weil return PTR_ERR(req); 43183d14c5d2SYehuda Sadeh 43193d14c5d2SYehuda Sadeh /* it may be a short write due to an object boundary */ 4320406e2c9fSAlex Elder osd_req_op_extent_osd_data_pages(req, 0, pages, len, page_align, 432143bfe5deSAlex Elder false, false); 432243bfe5deSAlex Elder dout("writepages %llu~%llu (%llu bytes)\n", off, len, len); 43233d14c5d2SYehuda Sadeh 4324bb873b53SIlya Dryomov req->r_mtime = *mtime; 432587f979d3SAlex Elder rc = ceph_osdc_start_request(osdc, req, true); 43263d14c5d2SYehuda Sadeh if (!rc) 43273d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 43283d14c5d2SYehuda Sadeh 43293d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 43303d14c5d2SYehuda Sadeh if (rc == 0) 43313d14c5d2SYehuda Sadeh rc = len; 43323d14c5d2SYehuda Sadeh dout("writepages result %d\n", rc); 43333d14c5d2SYehuda Sadeh return rc; 43343d14c5d2SYehuda Sadeh } 43353d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_writepages); 43363d14c5d2SYehuda Sadeh 43375522ae0bSAlex Elder int ceph_osdc_setup(void) 43385522ae0bSAlex Elder { 43393f1af42aSIlya Dryomov size_t size = sizeof(struct ceph_osd_request) + 43403f1af42aSIlya Dryomov CEPH_OSD_SLAB_OPS * sizeof(struct ceph_osd_req_op); 43413f1af42aSIlya Dryomov 43425522ae0bSAlex Elder BUG_ON(ceph_osd_request_cache); 43433f1af42aSIlya Dryomov ceph_osd_request_cache = kmem_cache_create("ceph_osd_request", size, 43443f1af42aSIlya Dryomov 0, 0, NULL); 43455522ae0bSAlex Elder 43465522ae0bSAlex Elder return ceph_osd_request_cache ? 0 : -ENOMEM; 43475522ae0bSAlex Elder } 43485522ae0bSAlex Elder EXPORT_SYMBOL(ceph_osdc_setup); 43495522ae0bSAlex Elder 43505522ae0bSAlex Elder void ceph_osdc_cleanup(void) 43515522ae0bSAlex Elder { 43525522ae0bSAlex Elder BUG_ON(!ceph_osd_request_cache); 43535522ae0bSAlex Elder kmem_cache_destroy(ceph_osd_request_cache); 43545522ae0bSAlex Elder ceph_osd_request_cache = NULL; 43555522ae0bSAlex Elder } 43565522ae0bSAlex Elder EXPORT_SYMBOL(ceph_osdc_cleanup); 43575522ae0bSAlex Elder 43583d14c5d2SYehuda Sadeh /* 43593d14c5d2SYehuda Sadeh * handle incoming message 43603d14c5d2SYehuda Sadeh */ 43613d14c5d2SYehuda Sadeh static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) 43623d14c5d2SYehuda Sadeh { 43633d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 43645aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 43653d14c5d2SYehuda Sadeh int type = le16_to_cpu(msg->hdr.type); 43663d14c5d2SYehuda Sadeh 43673d14c5d2SYehuda Sadeh switch (type) { 43683d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 43693d14c5d2SYehuda Sadeh ceph_osdc_handle_map(osdc, msg); 43703d14c5d2SYehuda Sadeh break; 43713d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 43725aea3dcdSIlya Dryomov handle_reply(osd, msg); 43733d14c5d2SYehuda Sadeh break; 4374a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 4375a40c4f10SYehuda Sadeh handle_watch_notify(osdc, msg); 4376a40c4f10SYehuda Sadeh break; 43773d14c5d2SYehuda Sadeh 43783d14c5d2SYehuda Sadeh default: 43793d14c5d2SYehuda Sadeh pr_err("received unknown message type %d %s\n", type, 43803d14c5d2SYehuda Sadeh ceph_msg_type_name(type)); 43813d14c5d2SYehuda Sadeh } 43825aea3dcdSIlya Dryomov 43833d14c5d2SYehuda Sadeh ceph_msg_put(msg); 43843d14c5d2SYehuda Sadeh } 43853d14c5d2SYehuda Sadeh 43863d14c5d2SYehuda Sadeh /* 4387d15f9d69SIlya Dryomov * Lookup and return message for incoming reply. Don't try to do 4388d15f9d69SIlya Dryomov * anything about a larger than preallocated data portion of the 4389d15f9d69SIlya Dryomov * message at the moment - for now, just skip the message. 43903d14c5d2SYehuda Sadeh */ 43913d14c5d2SYehuda Sadeh static struct ceph_msg *get_reply(struct ceph_connection *con, 43923d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 43933d14c5d2SYehuda Sadeh int *skip) 43943d14c5d2SYehuda Sadeh { 43953d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 43963d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = osd->o_osdc; 43975aea3dcdSIlya Dryomov struct ceph_msg *m = NULL; 43983d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 43993f0a4ac5SIlya Dryomov int front_len = le32_to_cpu(hdr->front_len); 44003d14c5d2SYehuda Sadeh int data_len = le32_to_cpu(hdr->data_len); 44015aea3dcdSIlya Dryomov u64 tid = le64_to_cpu(hdr->tid); 44023d14c5d2SYehuda Sadeh 44035aea3dcdSIlya Dryomov down_read(&osdc->lock); 44045aea3dcdSIlya Dryomov if (!osd_registered(osd)) { 44055aea3dcdSIlya Dryomov dout("%s osd%d unknown, skipping\n", __func__, osd->o_osd); 44065aea3dcdSIlya Dryomov *skip = 1; 44075aea3dcdSIlya Dryomov goto out_unlock_osdc; 44085aea3dcdSIlya Dryomov } 44095aea3dcdSIlya Dryomov WARN_ON(osd->o_osd != le64_to_cpu(hdr->src.num)); 44105aea3dcdSIlya Dryomov 44115aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 44125aea3dcdSIlya Dryomov req = lookup_request(&osd->o_requests, tid); 44133d14c5d2SYehuda Sadeh if (!req) { 4414cd8140c6SIlya Dryomov dout("%s osd%d tid %llu unknown, skipping\n", __func__, 4415cd8140c6SIlya Dryomov osd->o_osd, tid); 4416d15f9d69SIlya Dryomov *skip = 1; 44175aea3dcdSIlya Dryomov goto out_unlock_session; 44183d14c5d2SYehuda Sadeh } 44193d14c5d2SYehuda Sadeh 44208921d114SAlex Elder ceph_msg_revoke_incoming(req->r_reply); 44213d14c5d2SYehuda Sadeh 4422f2be82b0SIlya Dryomov if (front_len > req->r_reply->front_alloc_len) { 4423d15f9d69SIlya Dryomov pr_warn("%s osd%d tid %llu front %d > preallocated %d\n", 4424d15f9d69SIlya Dryomov __func__, osd->o_osd, req->r_tid, front_len, 4425d15f9d69SIlya Dryomov req->r_reply->front_alloc_len); 44263f0a4ac5SIlya Dryomov m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front_len, GFP_NOFS, 44273f0a4ac5SIlya Dryomov false); 44283d14c5d2SYehuda Sadeh if (!m) 44295aea3dcdSIlya Dryomov goto out_unlock_session; 44303d14c5d2SYehuda Sadeh ceph_msg_put(req->r_reply); 44313d14c5d2SYehuda Sadeh req->r_reply = m; 44323d14c5d2SYehuda Sadeh } 44333d14c5d2SYehuda Sadeh 4434d15f9d69SIlya Dryomov if (data_len > req->r_reply->data_length) { 4435d15f9d69SIlya Dryomov pr_warn("%s osd%d tid %llu data %d > preallocated %zu, skipping\n", 4436d15f9d69SIlya Dryomov __func__, osd->o_osd, req->r_tid, data_len, 4437d15f9d69SIlya Dryomov req->r_reply->data_length); 44383d14c5d2SYehuda Sadeh m = NULL; 4439d15f9d69SIlya Dryomov *skip = 1; 44405aea3dcdSIlya Dryomov goto out_unlock_session; 44413d14c5d2SYehuda Sadeh } 4442d15f9d69SIlya Dryomov 4443d15f9d69SIlya Dryomov m = ceph_msg_get(req->r_reply); 44443d14c5d2SYehuda Sadeh dout("get_reply tid %lld %p\n", tid, m); 44453d14c5d2SYehuda Sadeh 44465aea3dcdSIlya Dryomov out_unlock_session: 44475aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 44485aea3dcdSIlya Dryomov out_unlock_osdc: 44495aea3dcdSIlya Dryomov up_read(&osdc->lock); 44503d14c5d2SYehuda Sadeh return m; 44513d14c5d2SYehuda Sadeh } 44523d14c5d2SYehuda Sadeh 445319079203SIlya Dryomov /* 445419079203SIlya Dryomov * TODO: switch to a msg-owned pagelist 445519079203SIlya Dryomov */ 445619079203SIlya Dryomov static struct ceph_msg *alloc_msg_with_page_vector(struct ceph_msg_header *hdr) 445719079203SIlya Dryomov { 445819079203SIlya Dryomov struct ceph_msg *m; 445919079203SIlya Dryomov int type = le16_to_cpu(hdr->type); 446019079203SIlya Dryomov u32 front_len = le32_to_cpu(hdr->front_len); 446119079203SIlya Dryomov u32 data_len = le32_to_cpu(hdr->data_len); 446219079203SIlya Dryomov 446319079203SIlya Dryomov m = ceph_msg_new(type, front_len, GFP_NOIO, false); 446419079203SIlya Dryomov if (!m) 446519079203SIlya Dryomov return NULL; 446619079203SIlya Dryomov 446719079203SIlya Dryomov if (data_len) { 446819079203SIlya Dryomov struct page **pages; 446919079203SIlya Dryomov struct ceph_osd_data osd_data; 447019079203SIlya Dryomov 447119079203SIlya Dryomov pages = ceph_alloc_page_vector(calc_pages_for(0, data_len), 447219079203SIlya Dryomov GFP_NOIO); 4473c22e853aSWei Yongjun if (IS_ERR(pages)) { 447419079203SIlya Dryomov ceph_msg_put(m); 447519079203SIlya Dryomov return NULL; 447619079203SIlya Dryomov } 447719079203SIlya Dryomov 447819079203SIlya Dryomov ceph_osd_data_pages_init(&osd_data, pages, data_len, 0, false, 447919079203SIlya Dryomov false); 448019079203SIlya Dryomov ceph_osdc_msg_data_add(m, &osd_data); 448119079203SIlya Dryomov } 448219079203SIlya Dryomov 448319079203SIlya Dryomov return m; 448419079203SIlya Dryomov } 448519079203SIlya Dryomov 44863d14c5d2SYehuda Sadeh static struct ceph_msg *alloc_msg(struct ceph_connection *con, 44873d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 44883d14c5d2SYehuda Sadeh int *skip) 44893d14c5d2SYehuda Sadeh { 44903d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 44913d14c5d2SYehuda Sadeh int type = le16_to_cpu(hdr->type); 44923d14c5d2SYehuda Sadeh 44931c20f2d2SAlex Elder *skip = 0; 44943d14c5d2SYehuda Sadeh switch (type) { 44953d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 4496a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 449719079203SIlya Dryomov return alloc_msg_with_page_vector(hdr); 44983d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 44993d14c5d2SYehuda Sadeh return get_reply(con, hdr, skip); 45003d14c5d2SYehuda Sadeh default: 45015aea3dcdSIlya Dryomov pr_warn("%s osd%d unknown msg type %d, skipping\n", __func__, 45025aea3dcdSIlya Dryomov osd->o_osd, type); 45033d14c5d2SYehuda Sadeh *skip = 1; 45043d14c5d2SYehuda Sadeh return NULL; 45053d14c5d2SYehuda Sadeh } 45063d14c5d2SYehuda Sadeh } 45073d14c5d2SYehuda Sadeh 45083d14c5d2SYehuda Sadeh /* 45093d14c5d2SYehuda Sadeh * Wrappers to refcount containing ceph_osd struct 45103d14c5d2SYehuda Sadeh */ 45113d14c5d2SYehuda Sadeh static struct ceph_connection *get_osd_con(struct ceph_connection *con) 45123d14c5d2SYehuda Sadeh { 45133d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 45143d14c5d2SYehuda Sadeh if (get_osd(osd)) 45153d14c5d2SYehuda Sadeh return con; 45163d14c5d2SYehuda Sadeh return NULL; 45173d14c5d2SYehuda Sadeh } 45183d14c5d2SYehuda Sadeh 45193d14c5d2SYehuda Sadeh static void put_osd_con(struct ceph_connection *con) 45203d14c5d2SYehuda Sadeh { 45213d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 45223d14c5d2SYehuda Sadeh put_osd(osd); 45233d14c5d2SYehuda Sadeh } 45243d14c5d2SYehuda Sadeh 45253d14c5d2SYehuda Sadeh /* 45263d14c5d2SYehuda Sadeh * authentication 45273d14c5d2SYehuda Sadeh */ 4528a3530df3SAlex Elder /* 4529a3530df3SAlex Elder * Note: returned pointer is the address of a structure that's 4530a3530df3SAlex Elder * managed separately. Caller must *not* attempt to free it. 4531a3530df3SAlex Elder */ 4532a3530df3SAlex Elder static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con, 45338f43fb53SAlex Elder int *proto, int force_new) 45343d14c5d2SYehuda Sadeh { 45353d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 45363d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 45373d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 453874f1869fSAlex Elder struct ceph_auth_handshake *auth = &o->o_auth; 45393d14c5d2SYehuda Sadeh 454074f1869fSAlex Elder if (force_new && auth->authorizer) { 45416c1ea260SIlya Dryomov ceph_auth_destroy_authorizer(auth->authorizer); 454274f1869fSAlex Elder auth->authorizer = NULL; 45433d14c5d2SYehuda Sadeh } 454427859f97SSage Weil if (!auth->authorizer) { 454527859f97SSage Weil int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_OSD, 4546a3530df3SAlex Elder auth); 45473d14c5d2SYehuda Sadeh if (ret) 4548a3530df3SAlex Elder return ERR_PTR(ret); 454927859f97SSage Weil } else { 455027859f97SSage Weil int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_OSD, 45510bed9b5cSSage Weil auth); 45520bed9b5cSSage Weil if (ret) 45530bed9b5cSSage Weil return ERR_PTR(ret); 45543d14c5d2SYehuda Sadeh } 45553d14c5d2SYehuda Sadeh *proto = ac->protocol; 455674f1869fSAlex Elder 4557a3530df3SAlex Elder return auth; 45583d14c5d2SYehuda Sadeh } 45593d14c5d2SYehuda Sadeh 45603d14c5d2SYehuda Sadeh 45610dde5848SIlya Dryomov static int verify_authorizer_reply(struct ceph_connection *con) 45623d14c5d2SYehuda Sadeh { 45633d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 45643d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 45653d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 45663d14c5d2SYehuda Sadeh 45670dde5848SIlya Dryomov return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer); 45683d14c5d2SYehuda Sadeh } 45693d14c5d2SYehuda Sadeh 45703d14c5d2SYehuda Sadeh static int invalidate_authorizer(struct ceph_connection *con) 45713d14c5d2SYehuda Sadeh { 45723d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 45733d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 45743d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 45753d14c5d2SYehuda Sadeh 457627859f97SSage Weil ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD); 45773d14c5d2SYehuda Sadeh return ceph_monc_validate_auth(&osdc->client->monc); 45783d14c5d2SYehuda Sadeh } 45793d14c5d2SYehuda Sadeh 458079dbd1baSIlya Dryomov static int osd_sign_message(struct ceph_msg *msg) 458133d07337SYan, Zheng { 458279dbd1baSIlya Dryomov struct ceph_osd *o = msg->con->private; 458333d07337SYan, Zheng struct ceph_auth_handshake *auth = &o->o_auth; 458479dbd1baSIlya Dryomov 458533d07337SYan, Zheng return ceph_auth_sign_message(auth, msg); 458633d07337SYan, Zheng } 458733d07337SYan, Zheng 458879dbd1baSIlya Dryomov static int osd_check_message_signature(struct ceph_msg *msg) 458933d07337SYan, Zheng { 459079dbd1baSIlya Dryomov struct ceph_osd *o = msg->con->private; 459133d07337SYan, Zheng struct ceph_auth_handshake *auth = &o->o_auth; 459279dbd1baSIlya Dryomov 459333d07337SYan, Zheng return ceph_auth_check_message_signature(auth, msg); 459433d07337SYan, Zheng } 459533d07337SYan, Zheng 45963d14c5d2SYehuda Sadeh static const struct ceph_connection_operations osd_con_ops = { 45973d14c5d2SYehuda Sadeh .get = get_osd_con, 45983d14c5d2SYehuda Sadeh .put = put_osd_con, 45993d14c5d2SYehuda Sadeh .dispatch = dispatch, 46003d14c5d2SYehuda Sadeh .get_authorizer = get_authorizer, 46013d14c5d2SYehuda Sadeh .verify_authorizer_reply = verify_authorizer_reply, 46023d14c5d2SYehuda Sadeh .invalidate_authorizer = invalidate_authorizer, 46033d14c5d2SYehuda Sadeh .alloc_msg = alloc_msg, 460479dbd1baSIlya Dryomov .sign_message = osd_sign_message, 460579dbd1baSIlya Dryomov .check_message_signature = osd_check_message_signature, 46065aea3dcdSIlya Dryomov .fault = osd_fault, 46073d14c5d2SYehuda Sadeh }; 4608