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); 485aea3dcdSIlya Dryomov 495aea3dcdSIlya Dryomov #if 1 505aea3dcdSIlya Dryomov static inline bool rwsem_is_wrlocked(struct rw_semaphore *sem) 515aea3dcdSIlya Dryomov { 525aea3dcdSIlya Dryomov bool wrlocked = true; 535aea3dcdSIlya Dryomov 545aea3dcdSIlya Dryomov if (unlikely(down_read_trylock(sem))) { 555aea3dcdSIlya Dryomov wrlocked = false; 565aea3dcdSIlya Dryomov up_read(sem); 575aea3dcdSIlya Dryomov } 585aea3dcdSIlya Dryomov 595aea3dcdSIlya Dryomov return wrlocked; 605aea3dcdSIlya Dryomov } 615aea3dcdSIlya Dryomov static inline void verify_osdc_locked(struct ceph_osd_client *osdc) 625aea3dcdSIlya Dryomov { 635aea3dcdSIlya Dryomov WARN_ON(!rwsem_is_locked(&osdc->lock)); 645aea3dcdSIlya Dryomov } 655aea3dcdSIlya Dryomov static inline void verify_osdc_wrlocked(struct ceph_osd_client *osdc) 665aea3dcdSIlya Dryomov { 675aea3dcdSIlya Dryomov WARN_ON(!rwsem_is_wrlocked(&osdc->lock)); 685aea3dcdSIlya Dryomov } 695aea3dcdSIlya Dryomov static inline void verify_osd_locked(struct ceph_osd *osd) 705aea3dcdSIlya Dryomov { 715aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 725aea3dcdSIlya Dryomov 735aea3dcdSIlya Dryomov WARN_ON(!(mutex_is_locked(&osd->lock) && 745aea3dcdSIlya Dryomov rwsem_is_locked(&osdc->lock)) && 755aea3dcdSIlya Dryomov !rwsem_is_wrlocked(&osdc->lock)); 765aea3dcdSIlya Dryomov } 775aea3dcdSIlya Dryomov #else 785aea3dcdSIlya Dryomov static inline void verify_osdc_locked(struct ceph_osd_client *osdc) { } 795aea3dcdSIlya Dryomov static inline void verify_osdc_wrlocked(struct ceph_osd_client *osdc) { } 805aea3dcdSIlya Dryomov static inline void verify_osd_locked(struct ceph_osd *osd) { } 815aea3dcdSIlya Dryomov #endif 825aea3dcdSIlya Dryomov 833d14c5d2SYehuda Sadeh /* 843d14c5d2SYehuda Sadeh * calculate the mapping of a file extent onto an object, and fill out the 853d14c5d2SYehuda Sadeh * request accordingly. shorten extent as necessary if it crosses an 863d14c5d2SYehuda Sadeh * object boundary. 873d14c5d2SYehuda Sadeh * 883d14c5d2SYehuda Sadeh * fill osd op in request message. 893d14c5d2SYehuda Sadeh */ 90dbe0fc41SAlex Elder static int calc_layout(struct ceph_file_layout *layout, u64 off, u64 *plen, 91a19dadfbSAlex Elder u64 *objnum, u64 *objoff, u64 *objlen) 923d14c5d2SYehuda Sadeh { 9360e56f13SAlex Elder u64 orig_len = *plen; 94d63b77f4SSage Weil int r; 953d14c5d2SYehuda Sadeh 9660e56f13SAlex Elder /* object extent? */ 9775d1c941SAlex Elder r = ceph_calc_file_object_mapping(layout, off, orig_len, objnum, 9875d1c941SAlex Elder objoff, objlen); 99d63b77f4SSage Weil if (r < 0) 100d63b77f4SSage Weil return r; 10175d1c941SAlex Elder if (*objlen < orig_len) { 10275d1c941SAlex Elder *plen = *objlen; 10360e56f13SAlex Elder dout(" skipping last %llu, final file extent %llu~%llu\n", 10460e56f13SAlex Elder orig_len - *plen, off, *plen); 10560e56f13SAlex Elder } 10660e56f13SAlex Elder 10775d1c941SAlex Elder dout("calc_layout objnum=%llx %llu~%llu\n", *objnum, *objoff, *objlen); 1083d14c5d2SYehuda Sadeh 1093ff5f385SAlex Elder return 0; 1103d14c5d2SYehuda Sadeh } 1113d14c5d2SYehuda Sadeh 112c54d47bfSAlex Elder static void ceph_osd_data_init(struct ceph_osd_data *osd_data) 113c54d47bfSAlex Elder { 114c54d47bfSAlex Elder memset(osd_data, 0, sizeof (*osd_data)); 115c54d47bfSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_NONE; 116c54d47bfSAlex Elder } 117c54d47bfSAlex Elder 118a4ce40a9SAlex Elder static void ceph_osd_data_pages_init(struct ceph_osd_data *osd_data, 11943bfe5deSAlex Elder struct page **pages, u64 length, u32 alignment, 12043bfe5deSAlex Elder bool pages_from_pool, bool own_pages) 12143bfe5deSAlex Elder { 12243bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_PAGES; 12343bfe5deSAlex Elder osd_data->pages = pages; 12443bfe5deSAlex Elder osd_data->length = length; 12543bfe5deSAlex Elder osd_data->alignment = alignment; 12643bfe5deSAlex Elder osd_data->pages_from_pool = pages_from_pool; 12743bfe5deSAlex Elder osd_data->own_pages = own_pages; 12843bfe5deSAlex Elder } 12943bfe5deSAlex Elder 130a4ce40a9SAlex Elder static void ceph_osd_data_pagelist_init(struct ceph_osd_data *osd_data, 13143bfe5deSAlex Elder struct ceph_pagelist *pagelist) 13243bfe5deSAlex Elder { 13343bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_PAGELIST; 13443bfe5deSAlex Elder osd_data->pagelist = pagelist; 13543bfe5deSAlex Elder } 13643bfe5deSAlex Elder 13743bfe5deSAlex Elder #ifdef CONFIG_BLOCK 138a4ce40a9SAlex Elder static void ceph_osd_data_bio_init(struct ceph_osd_data *osd_data, 13943bfe5deSAlex Elder struct bio *bio, size_t bio_length) 14043bfe5deSAlex Elder { 14143bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_BIO; 14243bfe5deSAlex Elder osd_data->bio = bio; 14343bfe5deSAlex Elder osd_data->bio_length = bio_length; 14443bfe5deSAlex Elder } 14543bfe5deSAlex Elder #endif /* CONFIG_BLOCK */ 14643bfe5deSAlex Elder 147863c7eb5SAlex Elder #define osd_req_op_data(oreq, whch, typ, fld) \ 148863c7eb5SAlex Elder ({ \ 1498a703a38SIoana Ciornei struct ceph_osd_request *__oreq = (oreq); \ 1508a703a38SIoana Ciornei unsigned int __whch = (whch); \ 1518a703a38SIoana Ciornei BUG_ON(__whch >= __oreq->r_num_ops); \ 1528a703a38SIoana Ciornei &__oreq->r_ops[__whch].typ.fld; \ 153863c7eb5SAlex Elder }) 154863c7eb5SAlex Elder 15549719778SAlex Elder static struct ceph_osd_data * 15649719778SAlex Elder osd_req_op_raw_data_in(struct ceph_osd_request *osd_req, unsigned int which) 15749719778SAlex Elder { 15849719778SAlex Elder BUG_ON(which >= osd_req->r_num_ops); 15949719778SAlex Elder 16049719778SAlex Elder return &osd_req->r_ops[which].raw_data_in; 16149719778SAlex Elder } 16249719778SAlex Elder 163a4ce40a9SAlex Elder struct ceph_osd_data * 164a4ce40a9SAlex Elder osd_req_op_extent_osd_data(struct ceph_osd_request *osd_req, 165406e2c9fSAlex Elder unsigned int which) 166a4ce40a9SAlex Elder { 167863c7eb5SAlex Elder return osd_req_op_data(osd_req, which, extent, osd_data); 168a4ce40a9SAlex Elder } 169a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data); 170a4ce40a9SAlex Elder 17149719778SAlex Elder void osd_req_op_raw_data_in_pages(struct ceph_osd_request *osd_req, 17249719778SAlex Elder unsigned int which, struct page **pages, 17349719778SAlex Elder u64 length, u32 alignment, 17449719778SAlex Elder bool pages_from_pool, bool own_pages) 17549719778SAlex Elder { 17649719778SAlex Elder struct ceph_osd_data *osd_data; 17749719778SAlex Elder 17849719778SAlex Elder osd_data = osd_req_op_raw_data_in(osd_req, which); 17949719778SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 18049719778SAlex Elder pages_from_pool, own_pages); 18149719778SAlex Elder } 18249719778SAlex Elder EXPORT_SYMBOL(osd_req_op_raw_data_in_pages); 18349719778SAlex Elder 184a4ce40a9SAlex Elder void osd_req_op_extent_osd_data_pages(struct ceph_osd_request *osd_req, 185406e2c9fSAlex Elder unsigned int which, struct page **pages, 186406e2c9fSAlex Elder u64 length, u32 alignment, 187a4ce40a9SAlex Elder bool pages_from_pool, bool own_pages) 188a4ce40a9SAlex Elder { 189a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 190a4ce40a9SAlex Elder 191863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 192a4ce40a9SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 193a4ce40a9SAlex Elder pages_from_pool, own_pages); 194a4ce40a9SAlex Elder } 195a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data_pages); 196a4ce40a9SAlex Elder 197a4ce40a9SAlex Elder void osd_req_op_extent_osd_data_pagelist(struct ceph_osd_request *osd_req, 198406e2c9fSAlex Elder unsigned int which, struct ceph_pagelist *pagelist) 199a4ce40a9SAlex Elder { 200a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 201a4ce40a9SAlex Elder 202863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 203a4ce40a9SAlex Elder ceph_osd_data_pagelist_init(osd_data, pagelist); 204a4ce40a9SAlex Elder } 205a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data_pagelist); 206a4ce40a9SAlex Elder 207a4ce40a9SAlex Elder #ifdef CONFIG_BLOCK 208a4ce40a9SAlex Elder void osd_req_op_extent_osd_data_bio(struct ceph_osd_request *osd_req, 209406e2c9fSAlex Elder unsigned int which, struct bio *bio, size_t bio_length) 210a4ce40a9SAlex Elder { 211a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 212863c7eb5SAlex Elder 213863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 214a4ce40a9SAlex Elder ceph_osd_data_bio_init(osd_data, bio, bio_length); 215a4ce40a9SAlex Elder } 216a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data_bio); 217a4ce40a9SAlex Elder #endif /* CONFIG_BLOCK */ 218a4ce40a9SAlex Elder 219a4ce40a9SAlex Elder static void osd_req_op_cls_request_info_pagelist( 220a4ce40a9SAlex Elder struct ceph_osd_request *osd_req, 221a4ce40a9SAlex Elder unsigned int which, struct ceph_pagelist *pagelist) 222a4ce40a9SAlex Elder { 223a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 224a4ce40a9SAlex Elder 225863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, request_info); 226a4ce40a9SAlex Elder ceph_osd_data_pagelist_init(osd_data, pagelist); 227a4ce40a9SAlex Elder } 228a4ce40a9SAlex Elder 22904017e29SAlex Elder void osd_req_op_cls_request_data_pagelist( 23004017e29SAlex Elder struct ceph_osd_request *osd_req, 23104017e29SAlex Elder unsigned int which, struct ceph_pagelist *pagelist) 23204017e29SAlex Elder { 23304017e29SAlex Elder struct ceph_osd_data *osd_data; 23404017e29SAlex Elder 235863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, request_data); 23604017e29SAlex Elder ceph_osd_data_pagelist_init(osd_data, pagelist); 237bb873b53SIlya Dryomov osd_req->r_ops[which].cls.indata_len += pagelist->length; 238bb873b53SIlya Dryomov osd_req->r_ops[which].indata_len += pagelist->length; 23904017e29SAlex Elder } 24004017e29SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_request_data_pagelist); 24104017e29SAlex Elder 2426c57b554SAlex Elder void osd_req_op_cls_request_data_pages(struct ceph_osd_request *osd_req, 2436c57b554SAlex Elder unsigned int which, struct page **pages, u64 length, 2446c57b554SAlex Elder u32 alignment, bool pages_from_pool, bool own_pages) 2456c57b554SAlex Elder { 2466c57b554SAlex Elder struct ceph_osd_data *osd_data; 2476c57b554SAlex Elder 2486c57b554SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, request_data); 2496c57b554SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 2506c57b554SAlex Elder pages_from_pool, own_pages); 251bb873b53SIlya Dryomov osd_req->r_ops[which].cls.indata_len += length; 252bb873b53SIlya Dryomov osd_req->r_ops[which].indata_len += length; 2536c57b554SAlex Elder } 2546c57b554SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_request_data_pages); 2556c57b554SAlex Elder 256a4ce40a9SAlex Elder void osd_req_op_cls_response_data_pages(struct ceph_osd_request *osd_req, 257a4ce40a9SAlex Elder unsigned int which, struct page **pages, u64 length, 258a4ce40a9SAlex Elder u32 alignment, bool pages_from_pool, bool own_pages) 259a4ce40a9SAlex Elder { 260a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 261a4ce40a9SAlex Elder 262863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, response_data); 263a4ce40a9SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 264a4ce40a9SAlex Elder pages_from_pool, own_pages); 265a4ce40a9SAlex Elder } 266a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_response_data_pages); 267a4ce40a9SAlex Elder 26823c08a9cSAlex Elder static u64 ceph_osd_data_length(struct ceph_osd_data *osd_data) 26923c08a9cSAlex Elder { 27023c08a9cSAlex Elder switch (osd_data->type) { 27123c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_NONE: 27223c08a9cSAlex Elder return 0; 27323c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_PAGES: 27423c08a9cSAlex Elder return osd_data->length; 27523c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_PAGELIST: 27623c08a9cSAlex Elder return (u64)osd_data->pagelist->length; 27723c08a9cSAlex Elder #ifdef CONFIG_BLOCK 27823c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_BIO: 27923c08a9cSAlex Elder return (u64)osd_data->bio_length; 28023c08a9cSAlex Elder #endif /* CONFIG_BLOCK */ 28123c08a9cSAlex Elder default: 28223c08a9cSAlex Elder WARN(true, "unrecognized data type %d\n", (int)osd_data->type); 28323c08a9cSAlex Elder return 0; 28423c08a9cSAlex Elder } 28523c08a9cSAlex Elder } 28623c08a9cSAlex Elder 287c54d47bfSAlex Elder static void ceph_osd_data_release(struct ceph_osd_data *osd_data) 288c54d47bfSAlex Elder { 2895476492fSAlex Elder if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES && osd_data->own_pages) { 290c54d47bfSAlex Elder int num_pages; 291c54d47bfSAlex Elder 292c54d47bfSAlex Elder num_pages = calc_pages_for((u64)osd_data->alignment, 293c54d47bfSAlex Elder (u64)osd_data->length); 294c54d47bfSAlex Elder ceph_release_page_vector(osd_data->pages, num_pages); 295c54d47bfSAlex Elder } 2965476492fSAlex Elder ceph_osd_data_init(osd_data); 2975476492fSAlex Elder } 2985476492fSAlex Elder 2995476492fSAlex Elder static void osd_req_op_data_release(struct ceph_osd_request *osd_req, 3005476492fSAlex Elder unsigned int which) 3015476492fSAlex Elder { 3025476492fSAlex Elder struct ceph_osd_req_op *op; 3035476492fSAlex Elder 3045476492fSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 3055476492fSAlex Elder op = &osd_req->r_ops[which]; 3065476492fSAlex Elder 3075476492fSAlex Elder switch (op->op) { 3085476492fSAlex Elder case CEPH_OSD_OP_READ: 3095476492fSAlex Elder case CEPH_OSD_OP_WRITE: 310e30b7577SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 3115476492fSAlex Elder ceph_osd_data_release(&op->extent.osd_data); 3125476492fSAlex Elder break; 3135476492fSAlex Elder case CEPH_OSD_OP_CALL: 3145476492fSAlex Elder ceph_osd_data_release(&op->cls.request_info); 31504017e29SAlex Elder ceph_osd_data_release(&op->cls.request_data); 3165476492fSAlex Elder ceph_osd_data_release(&op->cls.response_data); 3175476492fSAlex Elder break; 318d74b50beSYan, Zheng case CEPH_OSD_OP_SETXATTR: 319d74b50beSYan, Zheng case CEPH_OSD_OP_CMPXATTR: 320d74b50beSYan, Zheng ceph_osd_data_release(&op->xattr.osd_data); 321d74b50beSYan, Zheng break; 32266ba609fSYan, Zheng case CEPH_OSD_OP_STAT: 32366ba609fSYan, Zheng ceph_osd_data_release(&op->raw_data_in); 32466ba609fSYan, Zheng break; 3255476492fSAlex Elder default: 3265476492fSAlex Elder break; 3275476492fSAlex Elder } 328c54d47bfSAlex Elder } 329c54d47bfSAlex Elder 3303d14c5d2SYehuda Sadeh /* 33163244fa1SIlya Dryomov * Assumes @t is zero-initialized. 33263244fa1SIlya Dryomov */ 33363244fa1SIlya Dryomov static void target_init(struct ceph_osd_request_target *t) 33463244fa1SIlya Dryomov { 33563244fa1SIlya Dryomov ceph_oid_init(&t->base_oid); 33663244fa1SIlya Dryomov ceph_oloc_init(&t->base_oloc); 33763244fa1SIlya Dryomov ceph_oid_init(&t->target_oid); 33863244fa1SIlya Dryomov ceph_oloc_init(&t->target_oloc); 33963244fa1SIlya Dryomov 34063244fa1SIlya Dryomov ceph_osds_init(&t->acting); 34163244fa1SIlya Dryomov ceph_osds_init(&t->up); 34263244fa1SIlya Dryomov t->size = -1; 34363244fa1SIlya Dryomov t->min_size = -1; 34463244fa1SIlya Dryomov 34563244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 34663244fa1SIlya Dryomov } 34763244fa1SIlya Dryomov 34863244fa1SIlya Dryomov static void target_destroy(struct ceph_osd_request_target *t) 34963244fa1SIlya Dryomov { 35063244fa1SIlya Dryomov ceph_oid_destroy(&t->base_oid); 35163244fa1SIlya Dryomov ceph_oid_destroy(&t->target_oid); 35263244fa1SIlya Dryomov } 35363244fa1SIlya Dryomov 35463244fa1SIlya Dryomov /* 3553d14c5d2SYehuda Sadeh * requests 3563d14c5d2SYehuda Sadeh */ 3573540bfdbSIlya Dryomov static void request_release_checks(struct ceph_osd_request *req) 3583540bfdbSIlya Dryomov { 3593540bfdbSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&req->r_node)); 3603540bfdbSIlya Dryomov WARN_ON(!list_empty(&req->r_linger_item)); 3613540bfdbSIlya Dryomov WARN_ON(!list_empty(&req->r_linger_osd_item)); 3623540bfdbSIlya Dryomov WARN_ON(!list_empty(&req->r_unsafe_item)); 3633540bfdbSIlya Dryomov WARN_ON(req->r_osd); 3643540bfdbSIlya Dryomov } 3653540bfdbSIlya Dryomov 3669e94af20SIlya Dryomov static void ceph_osdc_release_request(struct kref *kref) 3673d14c5d2SYehuda Sadeh { 3689e94af20SIlya Dryomov struct ceph_osd_request *req = container_of(kref, 3699e94af20SIlya Dryomov struct ceph_osd_request, r_kref); 3705476492fSAlex Elder unsigned int which; 3713d14c5d2SYehuda Sadeh 3729e94af20SIlya Dryomov dout("%s %p (r_request %p r_reply %p)\n", __func__, req, 3739e94af20SIlya Dryomov req->r_request, req->r_reply); 3743540bfdbSIlya Dryomov request_release_checks(req); 3759e94af20SIlya Dryomov 3763d14c5d2SYehuda Sadeh if (req->r_request) 3773d14c5d2SYehuda Sadeh ceph_msg_put(req->r_request); 3785aea3dcdSIlya Dryomov if (req->r_reply) 379ab8cb34aSAlex Elder ceph_msg_put(req->r_reply); 3800fff87ecSAlex Elder 3815476492fSAlex Elder for (which = 0; which < req->r_num_ops; which++) 3825476492fSAlex Elder osd_req_op_data_release(req, which); 3830fff87ecSAlex Elder 384a66dd383SIlya Dryomov target_destroy(&req->r_t); 3853d14c5d2SYehuda Sadeh ceph_put_snap_context(req->r_snapc); 386d30291b9SIlya Dryomov 3873d14c5d2SYehuda Sadeh if (req->r_mempool) 3883d14c5d2SYehuda Sadeh mempool_free(req, req->r_osdc->req_mempool); 3893f1af42aSIlya Dryomov else if (req->r_num_ops <= CEPH_OSD_SLAB_OPS) 3905522ae0bSAlex Elder kmem_cache_free(ceph_osd_request_cache, req); 3913f1af42aSIlya Dryomov else 3923f1af42aSIlya Dryomov kfree(req); 3933d14c5d2SYehuda Sadeh } 3949e94af20SIlya Dryomov 3959e94af20SIlya Dryomov void ceph_osdc_get_request(struct ceph_osd_request *req) 3969e94af20SIlya Dryomov { 3979e94af20SIlya Dryomov dout("%s %p (was %d)\n", __func__, req, 3989e94af20SIlya Dryomov atomic_read(&req->r_kref.refcount)); 3999e94af20SIlya Dryomov kref_get(&req->r_kref); 4009e94af20SIlya Dryomov } 4019e94af20SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_get_request); 4029e94af20SIlya Dryomov 4039e94af20SIlya Dryomov void ceph_osdc_put_request(struct ceph_osd_request *req) 4049e94af20SIlya Dryomov { 4053ed97d63SIlya Dryomov if (req) { 4069e94af20SIlya Dryomov dout("%s %p (was %d)\n", __func__, req, 4079e94af20SIlya Dryomov atomic_read(&req->r_kref.refcount)); 4089e94af20SIlya Dryomov kref_put(&req->r_kref, ceph_osdc_release_request); 4099e94af20SIlya Dryomov } 4103ed97d63SIlya Dryomov } 4119e94af20SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_put_request); 4123d14c5d2SYehuda Sadeh 4133540bfdbSIlya Dryomov static void request_init(struct ceph_osd_request *req) 4143540bfdbSIlya Dryomov { 4153540bfdbSIlya Dryomov /* req only, each op is zeroed in _osd_req_op_init() */ 4163540bfdbSIlya Dryomov memset(req, 0, sizeof(*req)); 4173540bfdbSIlya Dryomov 4183540bfdbSIlya Dryomov kref_init(&req->r_kref); 4193540bfdbSIlya Dryomov init_completion(&req->r_completion); 4203540bfdbSIlya Dryomov init_completion(&req->r_safe_completion); 4213540bfdbSIlya Dryomov RB_CLEAR_NODE(&req->r_node); 4223540bfdbSIlya Dryomov INIT_LIST_HEAD(&req->r_linger_item); 4233540bfdbSIlya Dryomov INIT_LIST_HEAD(&req->r_linger_osd_item); 4243540bfdbSIlya Dryomov INIT_LIST_HEAD(&req->r_unsafe_item); 4253540bfdbSIlya Dryomov 4263540bfdbSIlya Dryomov target_init(&req->r_t); 4273540bfdbSIlya Dryomov } 4283540bfdbSIlya Dryomov 4293d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, 4303d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 4311b83bef2SSage Weil unsigned int num_ops, 4323d14c5d2SYehuda Sadeh bool use_mempool, 43354a54007SAlex Elder gfp_t gfp_flags) 4343d14c5d2SYehuda Sadeh { 4353d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 4363d14c5d2SYehuda Sadeh 4373d14c5d2SYehuda Sadeh if (use_mempool) { 4383f1af42aSIlya Dryomov BUG_ON(num_ops > CEPH_OSD_SLAB_OPS); 4393d14c5d2SYehuda Sadeh req = mempool_alloc(osdc->req_mempool, gfp_flags); 4403f1af42aSIlya Dryomov } else if (num_ops <= CEPH_OSD_SLAB_OPS) { 4413f1af42aSIlya Dryomov req = kmem_cache_alloc(ceph_osd_request_cache, gfp_flags); 4423d14c5d2SYehuda Sadeh } else { 4433f1af42aSIlya Dryomov BUG_ON(num_ops > CEPH_OSD_MAX_OPS); 4443f1af42aSIlya Dryomov req = kmalloc(sizeof(*req) + num_ops * sizeof(req->r_ops[0]), 4453f1af42aSIlya Dryomov gfp_flags); 4463d14c5d2SYehuda Sadeh } 4473f1af42aSIlya Dryomov if (unlikely(!req)) 4483d14c5d2SYehuda Sadeh return NULL; 4493d14c5d2SYehuda Sadeh 4503540bfdbSIlya Dryomov request_init(req); 4513d14c5d2SYehuda Sadeh req->r_osdc = osdc; 4523d14c5d2SYehuda Sadeh req->r_mempool = use_mempool; 45379528734SAlex Elder req->r_num_ops = num_ops; 45484127282SIlya Dryomov req->r_snapid = CEPH_NOSNAP; 45584127282SIlya Dryomov req->r_snapc = ceph_get_snap_context(snapc); 4563d14c5d2SYehuda Sadeh 45713d1ad16SIlya Dryomov dout("%s req %p\n", __func__, req); 45813d1ad16SIlya Dryomov return req; 4593f1af42aSIlya Dryomov } 46013d1ad16SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_alloc_request); 4613f1af42aSIlya Dryomov 46213d1ad16SIlya Dryomov int ceph_osdc_alloc_messages(struct ceph_osd_request *req, gfp_t gfp) 46313d1ad16SIlya Dryomov { 46413d1ad16SIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 46513d1ad16SIlya Dryomov struct ceph_msg *msg; 46613d1ad16SIlya Dryomov int msg_size; 4673d14c5d2SYehuda Sadeh 468d30291b9SIlya Dryomov WARN_ON(ceph_oid_empty(&req->r_base_oid)); 469d30291b9SIlya Dryomov 47013d1ad16SIlya Dryomov /* create request message */ 471ae458f5aSIlya Dryomov msg_size = 4 + 4 + 4; /* client_inc, osdmap_epoch, flags */ 472ae458f5aSIlya Dryomov msg_size += 4 + 4 + 4 + 8; /* mtime, reassert_version */ 473ae458f5aSIlya Dryomov msg_size += 2 + 4 + 8 + 4 + 4; /* oloc */ 474ae458f5aSIlya Dryomov msg_size += 1 + 8 + 4 + 4; /* pgid */ 47513d1ad16SIlya Dryomov msg_size += 4 + req->r_base_oid.name_len; /* oid */ 47613d1ad16SIlya Dryomov msg_size += 2 + req->r_num_ops * sizeof(struct ceph_osd_op); 477ae458f5aSIlya Dryomov msg_size += 8; /* snapid */ 478ae458f5aSIlya Dryomov msg_size += 8; /* snap_seq */ 47913d1ad16SIlya Dryomov msg_size += 4 + 8 * (req->r_snapc ? req->r_snapc->num_snaps : 0); 480ae458f5aSIlya Dryomov msg_size += 4; /* retry_attempt */ 481ae458f5aSIlya Dryomov 48213d1ad16SIlya Dryomov if (req->r_mempool) 4833d14c5d2SYehuda Sadeh msg = ceph_msgpool_get(&osdc->msgpool_op, 0); 4843d14c5d2SYehuda Sadeh else 48513d1ad16SIlya Dryomov msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size, gfp, true); 48613d1ad16SIlya Dryomov if (!msg) 48713d1ad16SIlya Dryomov return -ENOMEM; 4883d14c5d2SYehuda Sadeh 4893d14c5d2SYehuda Sadeh memset(msg->front.iov_base, 0, msg->front.iov_len); 4903d14c5d2SYehuda Sadeh req->r_request = msg; 4913d14c5d2SYehuda Sadeh 49213d1ad16SIlya Dryomov /* create reply message */ 49313d1ad16SIlya Dryomov msg_size = OSD_OPREPLY_FRONT_LEN; 494711da55dSIlya Dryomov msg_size += req->r_base_oid.name_len; 495711da55dSIlya Dryomov msg_size += req->r_num_ops * sizeof(struct ceph_osd_op); 49613d1ad16SIlya Dryomov 49713d1ad16SIlya Dryomov if (req->r_mempool) 49813d1ad16SIlya Dryomov msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0); 49913d1ad16SIlya Dryomov else 50013d1ad16SIlya Dryomov msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, msg_size, gfp, true); 50113d1ad16SIlya Dryomov if (!msg) 50213d1ad16SIlya Dryomov return -ENOMEM; 50313d1ad16SIlya Dryomov 50413d1ad16SIlya Dryomov req->r_reply = msg; 50513d1ad16SIlya Dryomov 50613d1ad16SIlya Dryomov return 0; 50713d1ad16SIlya Dryomov } 50813d1ad16SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_alloc_messages); 5093d14c5d2SYehuda Sadeh 510a8dd0a37SAlex Elder static bool osd_req_opcode_valid(u16 opcode) 511a8dd0a37SAlex Elder { 512a8dd0a37SAlex Elder switch (opcode) { 51370b5bfa3SIlya Dryomov #define GENERATE_CASE(op, opcode, str) case CEPH_OSD_OP_##op: return true; 51470b5bfa3SIlya Dryomov __CEPH_FORALL_OSD_OPS(GENERATE_CASE) 51570b5bfa3SIlya Dryomov #undef GENERATE_CASE 516a8dd0a37SAlex Elder default: 517a8dd0a37SAlex Elder return false; 518a8dd0a37SAlex Elder } 519a8dd0a37SAlex Elder } 520a8dd0a37SAlex Elder 52133803f33SAlex Elder /* 52233803f33SAlex Elder * This is an osd op init function for opcodes that have no data or 52333803f33SAlex Elder * other information associated with them. It also serves as a 52433803f33SAlex Elder * common init routine for all the other init functions, below. 52533803f33SAlex Elder */ 526c99d2d4aSAlex Elder static struct ceph_osd_req_op * 52749719778SAlex Elder _osd_req_op_init(struct ceph_osd_request *osd_req, unsigned int which, 528144cba14SYan, Zheng u16 opcode, u32 flags) 52933803f33SAlex Elder { 530c99d2d4aSAlex Elder struct ceph_osd_req_op *op; 531c99d2d4aSAlex Elder 532c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 53333803f33SAlex Elder BUG_ON(!osd_req_opcode_valid(opcode)); 53433803f33SAlex Elder 535c99d2d4aSAlex Elder op = &osd_req->r_ops[which]; 53633803f33SAlex Elder memset(op, 0, sizeof (*op)); 53733803f33SAlex Elder op->op = opcode; 538144cba14SYan, Zheng op->flags = flags; 539c99d2d4aSAlex Elder 540c99d2d4aSAlex Elder return op; 54133803f33SAlex Elder } 54233803f33SAlex Elder 54349719778SAlex Elder void osd_req_op_init(struct ceph_osd_request *osd_req, 544144cba14SYan, Zheng unsigned int which, u16 opcode, u32 flags) 54549719778SAlex Elder { 546144cba14SYan, Zheng (void)_osd_req_op_init(osd_req, which, opcode, flags); 54749719778SAlex Elder } 54849719778SAlex Elder EXPORT_SYMBOL(osd_req_op_init); 54949719778SAlex Elder 550c99d2d4aSAlex Elder void osd_req_op_extent_init(struct ceph_osd_request *osd_req, 551c99d2d4aSAlex Elder unsigned int which, u16 opcode, 55233803f33SAlex Elder u64 offset, u64 length, 55333803f33SAlex Elder u64 truncate_size, u32 truncate_seq) 55433803f33SAlex Elder { 555144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 556144cba14SYan, Zheng opcode, 0); 55733803f33SAlex Elder size_t payload_len = 0; 55833803f33SAlex Elder 559ad7a60deSLi Wang BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && 560e30b7577SIlya Dryomov opcode != CEPH_OSD_OP_WRITEFULL && opcode != CEPH_OSD_OP_ZERO && 561e30b7577SIlya Dryomov opcode != CEPH_OSD_OP_TRUNCATE); 56233803f33SAlex Elder 56333803f33SAlex Elder op->extent.offset = offset; 56433803f33SAlex Elder op->extent.length = length; 56533803f33SAlex Elder op->extent.truncate_size = truncate_size; 56633803f33SAlex Elder op->extent.truncate_seq = truncate_seq; 567e30b7577SIlya Dryomov if (opcode == CEPH_OSD_OP_WRITE || opcode == CEPH_OSD_OP_WRITEFULL) 56833803f33SAlex Elder payload_len += length; 56933803f33SAlex Elder 570de2aa102SIlya Dryomov op->indata_len = payload_len; 57133803f33SAlex Elder } 57233803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_init); 57333803f33SAlex Elder 574c99d2d4aSAlex Elder void osd_req_op_extent_update(struct ceph_osd_request *osd_req, 575c99d2d4aSAlex Elder unsigned int which, u64 length) 576e5975c7cSAlex Elder { 577c99d2d4aSAlex Elder struct ceph_osd_req_op *op; 578c99d2d4aSAlex Elder u64 previous; 579c99d2d4aSAlex Elder 580c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 581c99d2d4aSAlex Elder op = &osd_req->r_ops[which]; 582c99d2d4aSAlex Elder previous = op->extent.length; 583e5975c7cSAlex Elder 584e5975c7cSAlex Elder if (length == previous) 585e5975c7cSAlex Elder return; /* Nothing to do */ 586e5975c7cSAlex Elder BUG_ON(length > previous); 587e5975c7cSAlex Elder 588e5975c7cSAlex Elder op->extent.length = length; 589de2aa102SIlya Dryomov op->indata_len -= previous - length; 590e5975c7cSAlex Elder } 591e5975c7cSAlex Elder EXPORT_SYMBOL(osd_req_op_extent_update); 592e5975c7cSAlex Elder 5932c63f49aSYan, Zheng void osd_req_op_extent_dup_last(struct ceph_osd_request *osd_req, 5942c63f49aSYan, Zheng unsigned int which, u64 offset_inc) 5952c63f49aSYan, Zheng { 5962c63f49aSYan, Zheng struct ceph_osd_req_op *op, *prev_op; 5972c63f49aSYan, Zheng 5982c63f49aSYan, Zheng BUG_ON(which + 1 >= osd_req->r_num_ops); 5992c63f49aSYan, Zheng 6002c63f49aSYan, Zheng prev_op = &osd_req->r_ops[which]; 6012c63f49aSYan, Zheng op = _osd_req_op_init(osd_req, which + 1, prev_op->op, prev_op->flags); 6022c63f49aSYan, Zheng /* dup previous one */ 6032c63f49aSYan, Zheng op->indata_len = prev_op->indata_len; 6042c63f49aSYan, Zheng op->outdata_len = prev_op->outdata_len; 6052c63f49aSYan, Zheng op->extent = prev_op->extent; 6062c63f49aSYan, Zheng /* adjust offset */ 6072c63f49aSYan, Zheng op->extent.offset += offset_inc; 6082c63f49aSYan, Zheng op->extent.length -= offset_inc; 6092c63f49aSYan, Zheng 6102c63f49aSYan, Zheng if (op->op == CEPH_OSD_OP_WRITE || op->op == CEPH_OSD_OP_WRITEFULL) 6112c63f49aSYan, Zheng op->indata_len -= offset_inc; 6122c63f49aSYan, Zheng } 6132c63f49aSYan, Zheng EXPORT_SYMBOL(osd_req_op_extent_dup_last); 6142c63f49aSYan, Zheng 615c99d2d4aSAlex Elder void osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which, 61604017e29SAlex Elder u16 opcode, const char *class, const char *method) 61733803f33SAlex Elder { 618144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 619144cba14SYan, Zheng opcode, 0); 6205f562df5SAlex Elder struct ceph_pagelist *pagelist; 62133803f33SAlex Elder size_t payload_len = 0; 62233803f33SAlex Elder size_t size; 62333803f33SAlex Elder 62433803f33SAlex Elder BUG_ON(opcode != CEPH_OSD_OP_CALL); 62533803f33SAlex Elder 6265f562df5SAlex Elder pagelist = kmalloc(sizeof (*pagelist), GFP_NOFS); 6275f562df5SAlex Elder BUG_ON(!pagelist); 6285f562df5SAlex Elder ceph_pagelist_init(pagelist); 6295f562df5SAlex Elder 63033803f33SAlex Elder op->cls.class_name = class; 63133803f33SAlex Elder size = strlen(class); 63233803f33SAlex Elder BUG_ON(size > (size_t) U8_MAX); 63333803f33SAlex Elder op->cls.class_len = size; 6345f562df5SAlex Elder ceph_pagelist_append(pagelist, class, size); 63533803f33SAlex Elder payload_len += size; 63633803f33SAlex Elder 63733803f33SAlex Elder op->cls.method_name = method; 63833803f33SAlex Elder size = strlen(method); 63933803f33SAlex Elder BUG_ON(size > (size_t) U8_MAX); 64033803f33SAlex Elder op->cls.method_len = size; 6415f562df5SAlex Elder ceph_pagelist_append(pagelist, method, size); 64233803f33SAlex Elder payload_len += size; 64333803f33SAlex Elder 644a4ce40a9SAlex Elder osd_req_op_cls_request_info_pagelist(osd_req, which, pagelist); 6455f562df5SAlex Elder 646de2aa102SIlya Dryomov op->indata_len = payload_len; 64733803f33SAlex Elder } 64833803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_init); 6498c042b0dSAlex Elder 650d74b50beSYan, Zheng int osd_req_op_xattr_init(struct ceph_osd_request *osd_req, unsigned int which, 651d74b50beSYan, Zheng u16 opcode, const char *name, const void *value, 652d74b50beSYan, Zheng size_t size, u8 cmp_op, u8 cmp_mode) 653d74b50beSYan, Zheng { 654144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 655144cba14SYan, Zheng opcode, 0); 656d74b50beSYan, Zheng struct ceph_pagelist *pagelist; 657d74b50beSYan, Zheng size_t payload_len; 658d74b50beSYan, Zheng 659d74b50beSYan, Zheng BUG_ON(opcode != CEPH_OSD_OP_SETXATTR && opcode != CEPH_OSD_OP_CMPXATTR); 660d74b50beSYan, Zheng 661d74b50beSYan, Zheng pagelist = kmalloc(sizeof(*pagelist), GFP_NOFS); 662d74b50beSYan, Zheng if (!pagelist) 663d74b50beSYan, Zheng return -ENOMEM; 664d74b50beSYan, Zheng 665d74b50beSYan, Zheng ceph_pagelist_init(pagelist); 666d74b50beSYan, Zheng 667d74b50beSYan, Zheng payload_len = strlen(name); 668d74b50beSYan, Zheng op->xattr.name_len = payload_len; 669d74b50beSYan, Zheng ceph_pagelist_append(pagelist, name, payload_len); 670d74b50beSYan, Zheng 671d74b50beSYan, Zheng op->xattr.value_len = size; 672d74b50beSYan, Zheng ceph_pagelist_append(pagelist, value, size); 673d74b50beSYan, Zheng payload_len += size; 674d74b50beSYan, Zheng 675d74b50beSYan, Zheng op->xattr.cmp_op = cmp_op; 676d74b50beSYan, Zheng op->xattr.cmp_mode = cmp_mode; 677d74b50beSYan, Zheng 678d74b50beSYan, Zheng ceph_osd_data_pagelist_init(&op->xattr.osd_data, pagelist); 679de2aa102SIlya Dryomov op->indata_len = payload_len; 680d74b50beSYan, Zheng return 0; 681d74b50beSYan, Zheng } 682d74b50beSYan, Zheng EXPORT_SYMBOL(osd_req_op_xattr_init); 683d74b50beSYan, Zheng 684c99d2d4aSAlex Elder void osd_req_op_watch_init(struct ceph_osd_request *osd_req, 685c99d2d4aSAlex Elder unsigned int which, u16 opcode, 68633803f33SAlex Elder u64 cookie, u64 version, int flag) 68733803f33SAlex Elder { 688144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 689144cba14SYan, Zheng opcode, 0); 69033803f33SAlex Elder 691c99d2d4aSAlex Elder BUG_ON(opcode != CEPH_OSD_OP_NOTIFY_ACK && opcode != CEPH_OSD_OP_WATCH); 69233803f33SAlex Elder 69333803f33SAlex Elder op->watch.cookie = cookie; 6949ef1ee5aSAlex Elder op->watch.ver = version; 69533803f33SAlex Elder if (opcode == CEPH_OSD_OP_WATCH && flag) 69633803f33SAlex Elder op->watch.flag = (u8)1; 69733803f33SAlex Elder } 69833803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_watch_init); 69933803f33SAlex Elder 700c647b8a8SIlya Dryomov void osd_req_op_alloc_hint_init(struct ceph_osd_request *osd_req, 701c647b8a8SIlya Dryomov unsigned int which, 702c647b8a8SIlya Dryomov u64 expected_object_size, 703c647b8a8SIlya Dryomov u64 expected_write_size) 704c647b8a8SIlya Dryomov { 705c647b8a8SIlya Dryomov struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 706144cba14SYan, Zheng CEPH_OSD_OP_SETALLOCHINT, 707144cba14SYan, Zheng 0); 708c647b8a8SIlya Dryomov 709c647b8a8SIlya Dryomov op->alloc_hint.expected_object_size = expected_object_size; 710c647b8a8SIlya Dryomov op->alloc_hint.expected_write_size = expected_write_size; 711c647b8a8SIlya Dryomov 712c647b8a8SIlya Dryomov /* 713c647b8a8SIlya Dryomov * CEPH_OSD_OP_SETALLOCHINT op is advisory and therefore deemed 714c647b8a8SIlya Dryomov * not worth a feature bit. Set FAILOK per-op flag to make 715c647b8a8SIlya Dryomov * sure older osds don't trip over an unsupported opcode. 716c647b8a8SIlya Dryomov */ 717c647b8a8SIlya Dryomov op->flags |= CEPH_OSD_OP_FLAG_FAILOK; 718c647b8a8SIlya Dryomov } 719c647b8a8SIlya Dryomov EXPORT_SYMBOL(osd_req_op_alloc_hint_init); 720c647b8a8SIlya Dryomov 72190af3602SAlex Elder static void ceph_osdc_msg_data_add(struct ceph_msg *msg, 722ec9123c5SAlex Elder struct ceph_osd_data *osd_data) 723ec9123c5SAlex Elder { 724ec9123c5SAlex Elder u64 length = ceph_osd_data_length(osd_data); 725ec9123c5SAlex Elder 726ec9123c5SAlex Elder if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { 727ec9123c5SAlex Elder BUG_ON(length > (u64) SIZE_MAX); 728ec9123c5SAlex Elder if (length) 72990af3602SAlex Elder ceph_msg_data_add_pages(msg, osd_data->pages, 730ec9123c5SAlex Elder length, osd_data->alignment); 731ec9123c5SAlex Elder } else if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGELIST) { 732ec9123c5SAlex Elder BUG_ON(!length); 73390af3602SAlex Elder ceph_msg_data_add_pagelist(msg, osd_data->pagelist); 734ec9123c5SAlex Elder #ifdef CONFIG_BLOCK 735ec9123c5SAlex Elder } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) { 73690af3602SAlex Elder ceph_msg_data_add_bio(msg, osd_data->bio, length); 737ec9123c5SAlex Elder #endif 738ec9123c5SAlex Elder } else { 739ec9123c5SAlex Elder BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_NONE); 740ec9123c5SAlex Elder } 741ec9123c5SAlex Elder } 742ec9123c5SAlex Elder 743bb873b53SIlya Dryomov static u32 osd_req_encode_op(struct ceph_osd_op *dst, 744bb873b53SIlya Dryomov const struct ceph_osd_req_op *src) 7453d14c5d2SYehuda Sadeh { 746a8dd0a37SAlex Elder if (WARN_ON(!osd_req_opcode_valid(src->op))) { 747a8dd0a37SAlex Elder pr_err("unrecognized osd opcode %d\n", src->op); 748a8dd0a37SAlex Elder 749a8dd0a37SAlex Elder return 0; 750a8dd0a37SAlex Elder } 7513d14c5d2SYehuda Sadeh 752065a68f9SAlex Elder switch (src->op) { 753fbfab539SAlex Elder case CEPH_OSD_OP_STAT: 754fbfab539SAlex Elder break; 7553d14c5d2SYehuda Sadeh case CEPH_OSD_OP_READ: 7563d14c5d2SYehuda Sadeh case CEPH_OSD_OP_WRITE: 757e30b7577SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 758ad7a60deSLi Wang case CEPH_OSD_OP_ZERO: 759ad7a60deSLi Wang case CEPH_OSD_OP_TRUNCATE: 760175face2SAlex Elder dst->extent.offset = cpu_to_le64(src->extent.offset); 761175face2SAlex Elder dst->extent.length = cpu_to_le64(src->extent.length); 7623d14c5d2SYehuda Sadeh dst->extent.truncate_size = 7633d14c5d2SYehuda Sadeh cpu_to_le64(src->extent.truncate_size); 7643d14c5d2SYehuda Sadeh dst->extent.truncate_seq = 7653d14c5d2SYehuda Sadeh cpu_to_le32(src->extent.truncate_seq); 7663d14c5d2SYehuda Sadeh break; 7673d14c5d2SYehuda Sadeh case CEPH_OSD_OP_CALL: 7683d14c5d2SYehuda Sadeh dst->cls.class_len = src->cls.class_len; 7693d14c5d2SYehuda Sadeh dst->cls.method_len = src->cls.method_len; 770bb873b53SIlya Dryomov dst->cls.indata_len = cpu_to_le32(src->cls.indata_len); 7713d14c5d2SYehuda Sadeh break; 7723d14c5d2SYehuda Sadeh case CEPH_OSD_OP_STARTSYNC: 7733d14c5d2SYehuda Sadeh break; 774a40c4f10SYehuda Sadeh case CEPH_OSD_OP_NOTIFY_ACK: 775a40c4f10SYehuda Sadeh case CEPH_OSD_OP_WATCH: 776a40c4f10SYehuda Sadeh dst->watch.cookie = cpu_to_le64(src->watch.cookie); 777a40c4f10SYehuda Sadeh dst->watch.ver = cpu_to_le64(src->watch.ver); 778a40c4f10SYehuda Sadeh dst->watch.flag = src->watch.flag; 779a40c4f10SYehuda Sadeh break; 780c647b8a8SIlya Dryomov case CEPH_OSD_OP_SETALLOCHINT: 781c647b8a8SIlya Dryomov dst->alloc_hint.expected_object_size = 782c647b8a8SIlya Dryomov cpu_to_le64(src->alloc_hint.expected_object_size); 783c647b8a8SIlya Dryomov dst->alloc_hint.expected_write_size = 784c647b8a8SIlya Dryomov cpu_to_le64(src->alloc_hint.expected_write_size); 785c647b8a8SIlya Dryomov break; 786d74b50beSYan, Zheng case CEPH_OSD_OP_SETXATTR: 787d74b50beSYan, Zheng case CEPH_OSD_OP_CMPXATTR: 788d74b50beSYan, Zheng dst->xattr.name_len = cpu_to_le32(src->xattr.name_len); 789d74b50beSYan, Zheng dst->xattr.value_len = cpu_to_le32(src->xattr.value_len); 790d74b50beSYan, Zheng dst->xattr.cmp_op = src->xattr.cmp_op; 791d74b50beSYan, Zheng dst->xattr.cmp_mode = src->xattr.cmp_mode; 792d74b50beSYan, Zheng break; 793864e9197SYan, Zheng case CEPH_OSD_OP_CREATE: 794864e9197SYan, Zheng case CEPH_OSD_OP_DELETE: 795864e9197SYan, Zheng break; 7963d14c5d2SYehuda Sadeh default: 7974c46459cSAlex Elder pr_err("unsupported osd opcode %s\n", 7988f63ca2dSAlex Elder ceph_osd_op_name(src->op)); 7994c46459cSAlex Elder WARN_ON(1); 800a8dd0a37SAlex Elder 801a8dd0a37SAlex Elder return 0; 8023d14c5d2SYehuda Sadeh } 8037b25bf5fSIlya Dryomov 804a8dd0a37SAlex Elder dst->op = cpu_to_le16(src->op); 8057b25bf5fSIlya Dryomov dst->flags = cpu_to_le32(src->flags); 806de2aa102SIlya Dryomov dst->payload_len = cpu_to_le32(src->indata_len); 807175face2SAlex Elder 808bb873b53SIlya Dryomov return src->indata_len; 8093d14c5d2SYehuda Sadeh } 8103d14c5d2SYehuda Sadeh 8113d14c5d2SYehuda Sadeh /* 8123d14c5d2SYehuda Sadeh * build new request AND message, calculate layout, and adjust file 8133d14c5d2SYehuda Sadeh * extent as needed. 8143d14c5d2SYehuda Sadeh * 8153d14c5d2SYehuda Sadeh * if the file was recently truncated, we include information about its 8163d14c5d2SYehuda Sadeh * old and new size so that the object can be updated appropriately. (we 8173d14c5d2SYehuda Sadeh * avoid synchronously deleting truncated objects because it's slow.) 8183d14c5d2SYehuda Sadeh * 8193d14c5d2SYehuda Sadeh * if @do_sync, include a 'startsync' command so that the osd will flush 8203d14c5d2SYehuda Sadeh * data quickly. 8213d14c5d2SYehuda Sadeh */ 8223d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, 8233d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 8243d14c5d2SYehuda Sadeh struct ceph_vino vino, 825715e4cd4SYan, Zheng u64 off, u64 *plen, 826715e4cd4SYan, Zheng unsigned int which, int num_ops, 8273d14c5d2SYehuda Sadeh int opcode, int flags, 8283d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 8293d14c5d2SYehuda Sadeh u32 truncate_seq, 8303d14c5d2SYehuda Sadeh u64 truncate_size, 831153e5167SAlex Elder bool use_mempool) 8323d14c5d2SYehuda Sadeh { 8333d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 83475d1c941SAlex Elder u64 objnum = 0; 83575d1c941SAlex Elder u64 objoff = 0; 83675d1c941SAlex Elder u64 objlen = 0; 8376816282dSSage Weil int r; 8383d14c5d2SYehuda Sadeh 839ad7a60deSLi Wang BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && 840864e9197SYan, Zheng opcode != CEPH_OSD_OP_ZERO && opcode != CEPH_OSD_OP_TRUNCATE && 841864e9197SYan, Zheng opcode != CEPH_OSD_OP_CREATE && opcode != CEPH_OSD_OP_DELETE); 8423d14c5d2SYehuda Sadeh 843acead002SAlex Elder req = ceph_osdc_alloc_request(osdc, snapc, num_ops, use_mempool, 844ae7ca4a3SAlex Elder GFP_NOFS); 84513d1ad16SIlya Dryomov if (!req) { 84613d1ad16SIlya Dryomov r = -ENOMEM; 84713d1ad16SIlya Dryomov goto fail; 84813d1ad16SIlya Dryomov } 84979528734SAlex Elder 8503d14c5d2SYehuda Sadeh /* calculate max write size */ 851a19dadfbSAlex Elder r = calc_layout(layout, off, plen, &objnum, &objoff, &objlen); 85213d1ad16SIlya Dryomov if (r) 85313d1ad16SIlya Dryomov goto fail; 854a19dadfbSAlex Elder 855864e9197SYan, Zheng if (opcode == CEPH_OSD_OP_CREATE || opcode == CEPH_OSD_OP_DELETE) { 856144cba14SYan, Zheng osd_req_op_init(req, which, opcode, 0); 857864e9197SYan, Zheng } else { 858864e9197SYan, Zheng u32 object_size = le32_to_cpu(layout->fl_object_size); 859864e9197SYan, Zheng u32 object_base = off - objoff; 860ccca4e37SYan, Zheng if (!(truncate_seq == 1 && truncate_size == -1ULL)) { 861d18d1e28SAlex Elder if (truncate_size <= object_base) { 862d18d1e28SAlex Elder truncate_size = 0; 863d18d1e28SAlex Elder } else { 864d18d1e28SAlex Elder truncate_size -= object_base; 865d18d1e28SAlex Elder if (truncate_size > object_size) 866d18d1e28SAlex Elder truncate_size = object_size; 867d18d1e28SAlex Elder } 868ccca4e37SYan, Zheng } 869715e4cd4SYan, Zheng osd_req_op_extent_init(req, which, opcode, objoff, objlen, 870b0270324SAlex Elder truncate_size, truncate_seq); 871864e9197SYan, Zheng } 872d18d1e28SAlex Elder 873bb873b53SIlya Dryomov req->r_flags = flags; 8743c972c95SIlya Dryomov req->r_base_oloc.pool = ceph_file_layout_pg_pool(*layout); 875d30291b9SIlya Dryomov ceph_oid_printf(&req->r_base_oid, "%llx.%08llx", vino.ino, objnum); 876dbe0fc41SAlex Elder 877bb873b53SIlya Dryomov req->r_snapid = vino.snap; 878bb873b53SIlya Dryomov if (flags & CEPH_OSD_FLAG_WRITE) 879bb873b53SIlya Dryomov req->r_data_offset = off; 880bb873b53SIlya Dryomov 88113d1ad16SIlya Dryomov r = ceph_osdc_alloc_messages(req, GFP_NOFS); 88213d1ad16SIlya Dryomov if (r) 88313d1ad16SIlya Dryomov goto fail; 88413d1ad16SIlya Dryomov 8853d14c5d2SYehuda Sadeh return req; 88613d1ad16SIlya Dryomov 88713d1ad16SIlya Dryomov fail: 88813d1ad16SIlya Dryomov ceph_osdc_put_request(req); 88913d1ad16SIlya Dryomov return ERR_PTR(r); 8903d14c5d2SYehuda Sadeh } 8913d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_new_request); 8923d14c5d2SYehuda Sadeh 8933d14c5d2SYehuda Sadeh /* 8943d14c5d2SYehuda Sadeh * We keep osd requests in an rbtree, sorted by ->r_tid. 8953d14c5d2SYehuda Sadeh */ 896fcd00b68SIlya Dryomov DEFINE_RB_FUNCS(request, struct ceph_osd_request, r_tid, r_node) 8973d14c5d2SYehuda Sadeh 8980247a0cfSIlya Dryomov static bool osd_homeless(struct ceph_osd *osd) 8990247a0cfSIlya Dryomov { 9000247a0cfSIlya Dryomov return osd->o_osd == CEPH_HOMELESS_OSD; 9010247a0cfSIlya Dryomov } 9020247a0cfSIlya Dryomov 9035aea3dcdSIlya Dryomov static bool osd_registered(struct ceph_osd *osd) 9043d14c5d2SYehuda Sadeh { 9055aea3dcdSIlya Dryomov verify_osdc_locked(osd->o_osdc); 9063d14c5d2SYehuda Sadeh 9075aea3dcdSIlya Dryomov return !RB_EMPTY_NODE(&osd->o_node); 9083d14c5d2SYehuda Sadeh } 9093d14c5d2SYehuda Sadeh 9103d14c5d2SYehuda Sadeh /* 9110247a0cfSIlya Dryomov * Assumes @osd is zero-initialized. 9120247a0cfSIlya Dryomov */ 9130247a0cfSIlya Dryomov static void osd_init(struct ceph_osd *osd) 9140247a0cfSIlya Dryomov { 9150247a0cfSIlya Dryomov atomic_set(&osd->o_ref, 1); 9160247a0cfSIlya Dryomov RB_CLEAR_NODE(&osd->o_node); 9175aea3dcdSIlya Dryomov osd->o_requests = RB_ROOT; 9180247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_linger_requests); 9190247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_osd_lru); 9200247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_keepalive_item); 9210247a0cfSIlya Dryomov osd->o_incarnation = 1; 9225aea3dcdSIlya Dryomov mutex_init(&osd->lock); 9230247a0cfSIlya Dryomov } 9240247a0cfSIlya Dryomov 9250247a0cfSIlya Dryomov static void osd_cleanup(struct ceph_osd *osd) 9260247a0cfSIlya Dryomov { 9270247a0cfSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&osd->o_node)); 9285aea3dcdSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_requests)); 9290247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_linger_requests)); 9300247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_osd_lru)); 9310247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_keepalive_item)); 9320247a0cfSIlya Dryomov 9330247a0cfSIlya Dryomov if (osd->o_auth.authorizer) { 9340247a0cfSIlya Dryomov WARN_ON(osd_homeless(osd)); 9350247a0cfSIlya Dryomov ceph_auth_destroy_authorizer(osd->o_auth.authorizer); 9360247a0cfSIlya Dryomov } 9370247a0cfSIlya Dryomov } 9380247a0cfSIlya Dryomov 9390247a0cfSIlya Dryomov /* 9403d14c5d2SYehuda Sadeh * Track open sessions with osds. 9413d14c5d2SYehuda Sadeh */ 942e10006f8SAlex Elder static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum) 9433d14c5d2SYehuda Sadeh { 9443d14c5d2SYehuda Sadeh struct ceph_osd *osd; 9453d14c5d2SYehuda Sadeh 9460247a0cfSIlya Dryomov WARN_ON(onum == CEPH_HOMELESS_OSD); 9470247a0cfSIlya Dryomov 9487a28f59bSIlya Dryomov osd = kzalloc(sizeof(*osd), GFP_NOIO | __GFP_NOFAIL); 9490247a0cfSIlya Dryomov osd_init(osd); 9503d14c5d2SYehuda Sadeh osd->o_osdc = osdc; 951e10006f8SAlex Elder osd->o_osd = onum; 9523d14c5d2SYehuda Sadeh 953b7a9e5ddSSage Weil ceph_con_init(&osd->o_con, osd, &osd_con_ops, &osdc->client->msgr); 9543d14c5d2SYehuda Sadeh 9553d14c5d2SYehuda Sadeh return osd; 9563d14c5d2SYehuda Sadeh } 9573d14c5d2SYehuda Sadeh 9583d14c5d2SYehuda Sadeh static struct ceph_osd *get_osd(struct ceph_osd *osd) 9593d14c5d2SYehuda Sadeh { 9603d14c5d2SYehuda Sadeh if (atomic_inc_not_zero(&osd->o_ref)) { 9613d14c5d2SYehuda Sadeh dout("get_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref)-1, 9623d14c5d2SYehuda Sadeh atomic_read(&osd->o_ref)); 9633d14c5d2SYehuda Sadeh return osd; 9643d14c5d2SYehuda Sadeh } else { 9653d14c5d2SYehuda Sadeh dout("get_osd %p FAIL\n", osd); 9663d14c5d2SYehuda Sadeh return NULL; 9673d14c5d2SYehuda Sadeh } 9683d14c5d2SYehuda Sadeh } 9693d14c5d2SYehuda Sadeh 9703d14c5d2SYehuda Sadeh static void put_osd(struct ceph_osd *osd) 9713d14c5d2SYehuda Sadeh { 9723d14c5d2SYehuda Sadeh dout("put_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref), 9733d14c5d2SYehuda Sadeh atomic_read(&osd->o_ref) - 1); 974b28ec2f3SIlya Dryomov if (atomic_dec_and_test(&osd->o_ref)) { 9750247a0cfSIlya Dryomov osd_cleanup(osd); 9763d14c5d2SYehuda Sadeh kfree(osd); 9773d14c5d2SYehuda Sadeh } 9783d14c5d2SYehuda Sadeh } 9793d14c5d2SYehuda Sadeh 980fcd00b68SIlya Dryomov DEFINE_RB_FUNCS(osd, struct ceph_osd, o_osd, o_node) 981fcd00b68SIlya Dryomov 9829dd2845cSIlya Dryomov static void __move_osd_to_lru(struct ceph_osd *osd) 9833d14c5d2SYehuda Sadeh { 9849dd2845cSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 9859dd2845cSIlya Dryomov 9869dd2845cSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 9873d14c5d2SYehuda Sadeh BUG_ON(!list_empty(&osd->o_osd_lru)); 988bbf37ec3SIlya Dryomov 9899dd2845cSIlya Dryomov spin_lock(&osdc->osd_lru_lock); 9903d14c5d2SYehuda Sadeh list_add_tail(&osd->o_osd_lru, &osdc->osd_lru); 9919dd2845cSIlya Dryomov spin_unlock(&osdc->osd_lru_lock); 9929dd2845cSIlya Dryomov 993a319bf56SIlya Dryomov osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl; 9943d14c5d2SYehuda Sadeh } 9953d14c5d2SYehuda Sadeh 9969dd2845cSIlya Dryomov static void maybe_move_osd_to_lru(struct ceph_osd *osd) 997bbf37ec3SIlya Dryomov { 9985aea3dcdSIlya Dryomov if (RB_EMPTY_ROOT(&osd->o_requests) && 999bbf37ec3SIlya Dryomov list_empty(&osd->o_linger_requests)) 10009dd2845cSIlya Dryomov __move_osd_to_lru(osd); 1001bbf37ec3SIlya Dryomov } 1002bbf37ec3SIlya Dryomov 10033d14c5d2SYehuda Sadeh static void __remove_osd_from_lru(struct ceph_osd *osd) 10043d14c5d2SYehuda Sadeh { 10059dd2845cSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 10069dd2845cSIlya Dryomov 10079dd2845cSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 10089dd2845cSIlya Dryomov 10099dd2845cSIlya Dryomov spin_lock(&osdc->osd_lru_lock); 10103d14c5d2SYehuda Sadeh if (!list_empty(&osd->o_osd_lru)) 10113d14c5d2SYehuda Sadeh list_del_init(&osd->o_osd_lru); 10129dd2845cSIlya Dryomov spin_unlock(&osdc->osd_lru_lock); 10133d14c5d2SYehuda Sadeh } 10143d14c5d2SYehuda Sadeh 10153d14c5d2SYehuda Sadeh /* 10165aea3dcdSIlya Dryomov * Close the connection and assign any leftover requests to the 10175aea3dcdSIlya Dryomov * homeless session. 10185aea3dcdSIlya Dryomov */ 10195aea3dcdSIlya Dryomov static void close_osd(struct ceph_osd *osd) 10205aea3dcdSIlya Dryomov { 10215aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 10225aea3dcdSIlya Dryomov struct rb_node *n; 10235aea3dcdSIlya Dryomov 10245aea3dcdSIlya Dryomov verify_osdc_wrlocked(osdc); 10255aea3dcdSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 10265aea3dcdSIlya Dryomov 10275aea3dcdSIlya Dryomov ceph_con_close(&osd->o_con); 10285aea3dcdSIlya Dryomov 10295aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; ) { 10305aea3dcdSIlya Dryomov struct ceph_osd_request *req = 10315aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 10325aea3dcdSIlya Dryomov 10335aea3dcdSIlya Dryomov n = rb_next(n); /* unlink_request() */ 10345aea3dcdSIlya Dryomov 10355aea3dcdSIlya Dryomov dout(" reassigning req %p tid %llu\n", req, req->r_tid); 10365aea3dcdSIlya Dryomov unlink_request(osd, req); 10375aea3dcdSIlya Dryomov link_request(&osdc->homeless_osd, req); 10385aea3dcdSIlya Dryomov } 10395aea3dcdSIlya Dryomov 10405aea3dcdSIlya Dryomov __remove_osd_from_lru(osd); 10415aea3dcdSIlya Dryomov erase_osd(&osdc->osds, osd); 10425aea3dcdSIlya Dryomov put_osd(osd); 10435aea3dcdSIlya Dryomov } 10445aea3dcdSIlya Dryomov 10455aea3dcdSIlya Dryomov /* 10463d14c5d2SYehuda Sadeh * reset osd connect 10473d14c5d2SYehuda Sadeh */ 10485aea3dcdSIlya Dryomov static int reopen_osd(struct ceph_osd *osd) 10493d14c5d2SYehuda Sadeh { 1050c3acb181SAlex Elder struct ceph_entity_addr *peer_addr; 10513d14c5d2SYehuda Sadeh 10525aea3dcdSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 10535aea3dcdSIlya Dryomov 10545aea3dcdSIlya Dryomov if (RB_EMPTY_ROOT(&osd->o_requests) && 1055a40c4f10SYehuda Sadeh list_empty(&osd->o_linger_requests)) { 10565aea3dcdSIlya Dryomov close_osd(osd); 1057c3acb181SAlex Elder return -ENODEV; 1058c3acb181SAlex Elder } 1059c3acb181SAlex Elder 10605aea3dcdSIlya Dryomov peer_addr = &osd->o_osdc->osdmap->osd_addr[osd->o_osd]; 1061c3acb181SAlex Elder if (!memcmp(peer_addr, &osd->o_con.peer_addr, sizeof (*peer_addr)) && 10623d14c5d2SYehuda Sadeh !ceph_con_opened(&osd->o_con)) { 10635aea3dcdSIlya Dryomov struct rb_node *n; 1064c3acb181SAlex Elder 10653d14c5d2SYehuda Sadeh dout("osd addr hasn't changed and connection never opened, " 10660b4af2e8SIlya Dryomov "letting msgr retry\n"); 10673d14c5d2SYehuda Sadeh /* touch each r_stamp for handle_timeout()'s benfit */ 10685aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) { 10695aea3dcdSIlya Dryomov struct ceph_osd_request *req = 10705aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 10713d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 10725aea3dcdSIlya Dryomov } 1073c3acb181SAlex Elder 1074c3acb181SAlex Elder return -EAGAIN; 10753d14c5d2SYehuda Sadeh } 1076c3acb181SAlex Elder 1077c3acb181SAlex Elder ceph_con_close(&osd->o_con); 1078c3acb181SAlex Elder ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, peer_addr); 1079c3acb181SAlex Elder osd->o_incarnation++; 1080c3acb181SAlex Elder 1081c3acb181SAlex Elder return 0; 10823d14c5d2SYehuda Sadeh } 10833d14c5d2SYehuda Sadeh 10845aea3dcdSIlya Dryomov static struct ceph_osd *lookup_create_osd(struct ceph_osd_client *osdc, int o, 10855aea3dcdSIlya Dryomov bool wrlocked) 10863d14c5d2SYehuda Sadeh { 10875aea3dcdSIlya Dryomov struct ceph_osd *osd; 10885aea3dcdSIlya Dryomov 10895aea3dcdSIlya Dryomov if (wrlocked) 10905aea3dcdSIlya Dryomov verify_osdc_wrlocked(osdc); 10915aea3dcdSIlya Dryomov else 10925aea3dcdSIlya Dryomov verify_osdc_locked(osdc); 10935aea3dcdSIlya Dryomov 10945aea3dcdSIlya Dryomov if (o != CEPH_HOMELESS_OSD) 10955aea3dcdSIlya Dryomov osd = lookup_osd(&osdc->osds, o); 10965aea3dcdSIlya Dryomov else 10975aea3dcdSIlya Dryomov osd = &osdc->homeless_osd; 10985aea3dcdSIlya Dryomov if (!osd) { 10995aea3dcdSIlya Dryomov if (!wrlocked) 11005aea3dcdSIlya Dryomov return ERR_PTR(-EAGAIN); 11015aea3dcdSIlya Dryomov 11025aea3dcdSIlya Dryomov osd = create_osd(osdc, o); 11035aea3dcdSIlya Dryomov insert_osd(&osdc->osds, osd); 11045aea3dcdSIlya Dryomov ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, 11055aea3dcdSIlya Dryomov &osdc->osdmap->osd_addr[osd->o_osd]); 11065aea3dcdSIlya Dryomov } 11075aea3dcdSIlya Dryomov 11085aea3dcdSIlya Dryomov dout("%s osdc %p osd%d -> osd %p\n", __func__, osdc, o, osd); 11095aea3dcdSIlya Dryomov return osd; 1110a40c4f10SYehuda Sadeh } 1111a40c4f10SYehuda Sadeh 11123d14c5d2SYehuda Sadeh /* 11135aea3dcdSIlya Dryomov * Create request <-> OSD session relation. 11145aea3dcdSIlya Dryomov * 11155aea3dcdSIlya Dryomov * @req has to be assigned a tid, @osd may be homeless. 11163d14c5d2SYehuda Sadeh */ 11175aea3dcdSIlya Dryomov static void link_request(struct ceph_osd *osd, struct ceph_osd_request *req) 11183d14c5d2SYehuda Sadeh { 11195aea3dcdSIlya Dryomov verify_osd_locked(osd); 11205aea3dcdSIlya Dryomov WARN_ON(!req->r_tid || req->r_osd); 11215aea3dcdSIlya Dryomov dout("%s osd %p osd%d req %p tid %llu\n", __func__, osd, osd->o_osd, 112235f9f8a0SSage Weil req, req->r_tid); 11235aea3dcdSIlya Dryomov 11245aea3dcdSIlya Dryomov if (!osd_homeless(osd)) 11255aea3dcdSIlya Dryomov __remove_osd_from_lru(osd); 11265aea3dcdSIlya Dryomov else 11275aea3dcdSIlya Dryomov atomic_inc(&osd->o_osdc->num_homeless); 11285aea3dcdSIlya Dryomov 11295aea3dcdSIlya Dryomov get_osd(osd); 11305aea3dcdSIlya Dryomov insert_request(&osd->o_requests, req); 11315aea3dcdSIlya Dryomov req->r_osd = osd; 113235f9f8a0SSage Weil } 113335f9f8a0SSage Weil 11345aea3dcdSIlya Dryomov static void unlink_request(struct ceph_osd *osd, struct ceph_osd_request *req) 11353d14c5d2SYehuda Sadeh { 11365aea3dcdSIlya Dryomov verify_osd_locked(osd); 11375aea3dcdSIlya Dryomov WARN_ON(req->r_osd != osd); 11385aea3dcdSIlya Dryomov dout("%s osd %p osd%d req %p tid %llu\n", __func__, osd, osd->o_osd, 11395aea3dcdSIlya Dryomov req, req->r_tid); 11405aea3dcdSIlya Dryomov 11415aea3dcdSIlya Dryomov req->r_osd = NULL; 11425aea3dcdSIlya Dryomov erase_request(&osd->o_requests, req); 11435aea3dcdSIlya Dryomov put_osd(osd); 11445aea3dcdSIlya Dryomov 11455aea3dcdSIlya Dryomov if (!osd_homeless(osd)) 11465aea3dcdSIlya Dryomov maybe_move_osd_to_lru(osd); 11475aea3dcdSIlya Dryomov else 11485aea3dcdSIlya Dryomov atomic_dec(&osd->o_osdc->num_homeless); 11493d14c5d2SYehuda Sadeh } 11503d14c5d2SYehuda Sadeh 11515aea3dcdSIlya Dryomov static void __register_linger_request(struct ceph_osd *osd, 1152a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1153a40c4f10SYehuda Sadeh { 1154af593064SIlya Dryomov dout("%s %p tid %llu\n", __func__, req, req->r_tid); 1155af593064SIlya Dryomov WARN_ON(!req->r_linger); 1156af593064SIlya Dryomov 115796e4dac6SAlex Elder ceph_osdc_get_request(req); 11585aea3dcdSIlya Dryomov list_add_tail(&req->r_linger_item, &osd->o_osdc->req_linger); 11595aea3dcdSIlya Dryomov list_add_tail(&req->r_linger_osd_item, &osd->o_linger_requests); 11605aea3dcdSIlya Dryomov __remove_osd_from_lru(osd); 11615aea3dcdSIlya Dryomov req->r_osd = osd; 1162a40c4f10SYehuda Sadeh } 1163a40c4f10SYehuda Sadeh 1164a40c4f10SYehuda Sadeh static void __unregister_linger_request(struct ceph_osd_client *osdc, 1165a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1166a40c4f10SYehuda Sadeh { 1167af593064SIlya Dryomov WARN_ON(!req->r_linger); 1168af593064SIlya Dryomov 1169af593064SIlya Dryomov if (list_empty(&req->r_linger_item)) { 1170af593064SIlya Dryomov dout("%s %p tid %llu not registered\n", __func__, req, 1171af593064SIlya Dryomov req->r_tid); 1172af593064SIlya Dryomov return; 1173af593064SIlya Dryomov } 1174af593064SIlya Dryomov 1175af593064SIlya Dryomov dout("%s %p tid %llu\n", __func__, req, req->r_tid); 1176a40c4f10SYehuda Sadeh list_del_init(&req->r_linger_item); 1177af593064SIlya Dryomov 117861c74035SAlex Elder if (req->r_osd) { 11791d0326b1SIlya Dryomov list_del_init(&req->r_linger_osd_item); 11809dd2845cSIlya Dryomov maybe_move_osd_to_lru(req->r_osd); 11815aea3dcdSIlya Dryomov if (RB_EMPTY_ROOT(&req->r_osd->o_requests)) 1182a40c4f10SYehuda Sadeh req->r_osd = NULL; 1183a40c4f10SYehuda Sadeh } 118496e4dac6SAlex Elder ceph_osdc_put_request(req); 1185a40c4f10SYehuda Sadeh } 1186a40c4f10SYehuda Sadeh 1187a40c4f10SYehuda Sadeh void ceph_osdc_set_request_linger(struct ceph_osd_client *osdc, 1188a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1189a40c4f10SYehuda Sadeh { 1190a40c4f10SYehuda Sadeh if (!req->r_linger) { 1191a40c4f10SYehuda Sadeh dout("set_request_linger %p\n", req); 1192a40c4f10SYehuda Sadeh req->r_linger = 1; 1193a40c4f10SYehuda Sadeh } 1194a40c4f10SYehuda Sadeh } 1195a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_set_request_linger); 1196a40c4f10SYehuda Sadeh 119763244fa1SIlya Dryomov static bool __pool_full(struct ceph_pg_pool_info *pi) 119863244fa1SIlya Dryomov { 119963244fa1SIlya Dryomov return pi->flags & CEPH_POOL_FLAG_FULL; 120063244fa1SIlya Dryomov } 120163244fa1SIlya Dryomov 120242c1b124SIlya Dryomov static bool have_pool_full(struct ceph_osd_client *osdc) 120342c1b124SIlya Dryomov { 120442c1b124SIlya Dryomov struct rb_node *n; 120542c1b124SIlya Dryomov 120642c1b124SIlya Dryomov for (n = rb_first(&osdc->osdmap->pg_pools); n; n = rb_next(n)) { 120742c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 120842c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 120942c1b124SIlya Dryomov 121042c1b124SIlya Dryomov if (__pool_full(pi)) 121142c1b124SIlya Dryomov return true; 121242c1b124SIlya Dryomov } 121342c1b124SIlya Dryomov 121442c1b124SIlya Dryomov return false; 121542c1b124SIlya Dryomov } 121642c1b124SIlya Dryomov 12175aea3dcdSIlya Dryomov static bool pool_full(struct ceph_osd_client *osdc, s64 pool_id) 12185aea3dcdSIlya Dryomov { 12195aea3dcdSIlya Dryomov struct ceph_pg_pool_info *pi; 12205aea3dcdSIlya Dryomov 12215aea3dcdSIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, pool_id); 12225aea3dcdSIlya Dryomov if (!pi) 12235aea3dcdSIlya Dryomov return false; 12245aea3dcdSIlya Dryomov 12255aea3dcdSIlya Dryomov return __pool_full(pi); 12265aea3dcdSIlya Dryomov } 12275aea3dcdSIlya Dryomov 12283d14c5d2SYehuda Sadeh /* 1229d29adb34SJosh Durgin * Returns whether a request should be blocked from being sent 1230d29adb34SJosh Durgin * based on the current osdmap and osd_client settings. 1231d29adb34SJosh Durgin */ 123263244fa1SIlya Dryomov static bool target_should_be_paused(struct ceph_osd_client *osdc, 123363244fa1SIlya Dryomov const struct ceph_osd_request_target *t, 123463244fa1SIlya Dryomov struct ceph_pg_pool_info *pi) 123563244fa1SIlya Dryomov { 123663244fa1SIlya Dryomov bool pauserd = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD); 123763244fa1SIlya Dryomov bool pausewr = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR) || 123863244fa1SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 123963244fa1SIlya Dryomov __pool_full(pi); 124063244fa1SIlya Dryomov 124163244fa1SIlya Dryomov WARN_ON(pi->id != t->base_oloc.pool); 124263244fa1SIlya Dryomov return (t->flags & CEPH_OSD_FLAG_READ && pauserd) || 124363244fa1SIlya Dryomov (t->flags & CEPH_OSD_FLAG_WRITE && pausewr); 124463244fa1SIlya Dryomov } 124563244fa1SIlya Dryomov 124663244fa1SIlya Dryomov enum calc_target_result { 124763244fa1SIlya Dryomov CALC_TARGET_NO_ACTION = 0, 124863244fa1SIlya Dryomov CALC_TARGET_NEED_RESEND, 124963244fa1SIlya Dryomov CALC_TARGET_POOL_DNE, 125063244fa1SIlya Dryomov }; 125163244fa1SIlya Dryomov 125263244fa1SIlya Dryomov static enum calc_target_result calc_target(struct ceph_osd_client *osdc, 125363244fa1SIlya Dryomov struct ceph_osd_request_target *t, 125463244fa1SIlya Dryomov u32 *last_force_resend, 125563244fa1SIlya Dryomov bool any_change) 125663244fa1SIlya Dryomov { 125763244fa1SIlya Dryomov struct ceph_pg_pool_info *pi; 125863244fa1SIlya Dryomov struct ceph_pg pgid, last_pgid; 125963244fa1SIlya Dryomov struct ceph_osds up, acting; 126063244fa1SIlya Dryomov bool force_resend = false; 126163244fa1SIlya Dryomov bool need_check_tiering = false; 126263244fa1SIlya Dryomov bool need_resend = false; 126363244fa1SIlya Dryomov bool sort_bitwise = ceph_osdmap_flag(osdc->osdmap, 126463244fa1SIlya Dryomov CEPH_OSDMAP_SORTBITWISE); 126563244fa1SIlya Dryomov enum calc_target_result ct_res; 126663244fa1SIlya Dryomov int ret; 126763244fa1SIlya Dryomov 126863244fa1SIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, t->base_oloc.pool); 126963244fa1SIlya Dryomov if (!pi) { 127063244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 127163244fa1SIlya Dryomov ct_res = CALC_TARGET_POOL_DNE; 127263244fa1SIlya Dryomov goto out; 127363244fa1SIlya Dryomov } 127463244fa1SIlya Dryomov 127563244fa1SIlya Dryomov if (osdc->osdmap->epoch == pi->last_force_request_resend) { 127663244fa1SIlya Dryomov if (last_force_resend && 127763244fa1SIlya Dryomov *last_force_resend < pi->last_force_request_resend) { 127863244fa1SIlya Dryomov *last_force_resend = pi->last_force_request_resend; 127963244fa1SIlya Dryomov force_resend = true; 128063244fa1SIlya Dryomov } else if (!last_force_resend) { 128163244fa1SIlya Dryomov force_resend = true; 128263244fa1SIlya Dryomov } 128363244fa1SIlya Dryomov } 128463244fa1SIlya Dryomov if (ceph_oid_empty(&t->target_oid) || force_resend) { 128563244fa1SIlya Dryomov ceph_oid_copy(&t->target_oid, &t->base_oid); 128663244fa1SIlya Dryomov need_check_tiering = true; 128763244fa1SIlya Dryomov } 128863244fa1SIlya Dryomov if (ceph_oloc_empty(&t->target_oloc) || force_resend) { 128963244fa1SIlya Dryomov ceph_oloc_copy(&t->target_oloc, &t->base_oloc); 129063244fa1SIlya Dryomov need_check_tiering = true; 129163244fa1SIlya Dryomov } 129263244fa1SIlya Dryomov 129363244fa1SIlya Dryomov if (need_check_tiering && 129463244fa1SIlya Dryomov (t->flags & CEPH_OSD_FLAG_IGNORE_OVERLAY) == 0) { 129563244fa1SIlya Dryomov if (t->flags & CEPH_OSD_FLAG_READ && pi->read_tier >= 0) 129663244fa1SIlya Dryomov t->target_oloc.pool = pi->read_tier; 129763244fa1SIlya Dryomov if (t->flags & CEPH_OSD_FLAG_WRITE && pi->write_tier >= 0) 129863244fa1SIlya Dryomov t->target_oloc.pool = pi->write_tier; 129963244fa1SIlya Dryomov } 130063244fa1SIlya Dryomov 130163244fa1SIlya Dryomov ret = ceph_object_locator_to_pg(osdc->osdmap, &t->target_oid, 130263244fa1SIlya Dryomov &t->target_oloc, &pgid); 130363244fa1SIlya Dryomov if (ret) { 130463244fa1SIlya Dryomov WARN_ON(ret != -ENOENT); 130563244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 130663244fa1SIlya Dryomov ct_res = CALC_TARGET_POOL_DNE; 130763244fa1SIlya Dryomov goto out; 130863244fa1SIlya Dryomov } 130963244fa1SIlya Dryomov last_pgid.pool = pgid.pool; 131063244fa1SIlya Dryomov last_pgid.seed = ceph_stable_mod(pgid.seed, t->pg_num, t->pg_num_mask); 131163244fa1SIlya Dryomov 131263244fa1SIlya Dryomov ceph_pg_to_up_acting_osds(osdc->osdmap, &pgid, &up, &acting); 131363244fa1SIlya Dryomov if (any_change && 131463244fa1SIlya Dryomov ceph_is_new_interval(&t->acting, 131563244fa1SIlya Dryomov &acting, 131663244fa1SIlya Dryomov &t->up, 131763244fa1SIlya Dryomov &up, 131863244fa1SIlya Dryomov t->size, 131963244fa1SIlya Dryomov pi->size, 132063244fa1SIlya Dryomov t->min_size, 132163244fa1SIlya Dryomov pi->min_size, 132263244fa1SIlya Dryomov t->pg_num, 132363244fa1SIlya Dryomov pi->pg_num, 132463244fa1SIlya Dryomov t->sort_bitwise, 132563244fa1SIlya Dryomov sort_bitwise, 132663244fa1SIlya Dryomov &last_pgid)) 132763244fa1SIlya Dryomov force_resend = true; 132863244fa1SIlya Dryomov 132963244fa1SIlya Dryomov if (t->paused && !target_should_be_paused(osdc, t, pi)) { 133063244fa1SIlya Dryomov t->paused = false; 133163244fa1SIlya Dryomov need_resend = true; 133263244fa1SIlya Dryomov } 133363244fa1SIlya Dryomov 133463244fa1SIlya Dryomov if (ceph_pg_compare(&t->pgid, &pgid) || 133563244fa1SIlya Dryomov ceph_osds_changed(&t->acting, &acting, any_change) || 133663244fa1SIlya Dryomov force_resend) { 133763244fa1SIlya Dryomov t->pgid = pgid; /* struct */ 133863244fa1SIlya Dryomov ceph_osds_copy(&t->acting, &acting); 133963244fa1SIlya Dryomov ceph_osds_copy(&t->up, &up); 134063244fa1SIlya Dryomov t->size = pi->size; 134163244fa1SIlya Dryomov t->min_size = pi->min_size; 134263244fa1SIlya Dryomov t->pg_num = pi->pg_num; 134363244fa1SIlya Dryomov t->pg_num_mask = pi->pg_num_mask; 134463244fa1SIlya Dryomov t->sort_bitwise = sort_bitwise; 134563244fa1SIlya Dryomov 134663244fa1SIlya Dryomov t->osd = acting.primary; 134763244fa1SIlya Dryomov need_resend = true; 134863244fa1SIlya Dryomov } 134963244fa1SIlya Dryomov 135063244fa1SIlya Dryomov ct_res = need_resend ? CALC_TARGET_NEED_RESEND : CALC_TARGET_NO_ACTION; 135163244fa1SIlya Dryomov out: 135263244fa1SIlya Dryomov dout("%s t %p -> ct_res %d osd %d\n", __func__, t, ct_res, t->osd); 135363244fa1SIlya Dryomov return ct_res; 135463244fa1SIlya Dryomov } 135563244fa1SIlya Dryomov 1356bb873b53SIlya Dryomov static void setup_request_data(struct ceph_osd_request *req, 1357bb873b53SIlya Dryomov struct ceph_msg *msg) 13583d14c5d2SYehuda Sadeh { 1359bb873b53SIlya Dryomov u32 data_len = 0; 1360bb873b53SIlya Dryomov int i; 13613d14c5d2SYehuda Sadeh 1362bb873b53SIlya Dryomov if (!list_empty(&msg->data)) 1363bb873b53SIlya Dryomov return; 13643d14c5d2SYehuda Sadeh 1365bb873b53SIlya Dryomov WARN_ON(msg->data_length); 1366bb873b53SIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 1367bb873b53SIlya Dryomov struct ceph_osd_req_op *op = &req->r_ops[i]; 1368bb873b53SIlya Dryomov 1369bb873b53SIlya Dryomov switch (op->op) { 1370bb873b53SIlya Dryomov /* request */ 1371bb873b53SIlya Dryomov case CEPH_OSD_OP_WRITE: 1372bb873b53SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 1373bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->extent.length); 1374bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->extent.osd_data); 1375bb873b53SIlya Dryomov break; 1376bb873b53SIlya Dryomov case CEPH_OSD_OP_SETXATTR: 1377bb873b53SIlya Dryomov case CEPH_OSD_OP_CMPXATTR: 1378bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->xattr.name_len + 1379bb873b53SIlya Dryomov op->xattr.value_len); 1380bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->xattr.osd_data); 1381bb873b53SIlya Dryomov break; 1382bb873b53SIlya Dryomov 1383bb873b53SIlya Dryomov /* reply */ 1384bb873b53SIlya Dryomov case CEPH_OSD_OP_STAT: 1385bb873b53SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 1386bb873b53SIlya Dryomov &op->raw_data_in); 1387bb873b53SIlya Dryomov break; 1388bb873b53SIlya Dryomov case CEPH_OSD_OP_READ: 1389bb873b53SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 1390bb873b53SIlya Dryomov &op->extent.osd_data); 1391bb873b53SIlya Dryomov break; 1392bb873b53SIlya Dryomov 1393bb873b53SIlya Dryomov /* both */ 1394bb873b53SIlya Dryomov case CEPH_OSD_OP_CALL: 1395bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->cls.class_len + 1396bb873b53SIlya Dryomov op->cls.method_len + 1397bb873b53SIlya Dryomov op->cls.indata_len); 1398bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->cls.request_info); 1399bb873b53SIlya Dryomov /* optional, can be NONE */ 1400bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->cls.request_data); 1401bb873b53SIlya Dryomov /* optional, can be NONE */ 1402bb873b53SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 1403bb873b53SIlya Dryomov &op->cls.response_data); 1404bb873b53SIlya Dryomov break; 1405bb873b53SIlya Dryomov } 1406bb873b53SIlya Dryomov 1407bb873b53SIlya Dryomov data_len += op->indata_len; 1408bb873b53SIlya Dryomov } 1409bb873b53SIlya Dryomov 1410bb873b53SIlya Dryomov WARN_ON(data_len != msg->data_length); 1411bb873b53SIlya Dryomov } 1412bb873b53SIlya Dryomov 1413bb873b53SIlya Dryomov static void encode_request(struct ceph_osd_request *req, struct ceph_msg *msg) 1414bb873b53SIlya Dryomov { 1415bb873b53SIlya Dryomov void *p = msg->front.iov_base; 1416bb873b53SIlya Dryomov void *const end = p + msg->front_alloc_len; 1417bb873b53SIlya Dryomov u32 data_len = 0; 1418bb873b53SIlya Dryomov int i; 1419bb873b53SIlya Dryomov 1420bb873b53SIlya Dryomov if (req->r_flags & CEPH_OSD_FLAG_WRITE) { 1421bb873b53SIlya Dryomov /* snapshots aren't writeable */ 1422bb873b53SIlya Dryomov WARN_ON(req->r_snapid != CEPH_NOSNAP); 1423bb873b53SIlya Dryomov } else { 1424bb873b53SIlya Dryomov WARN_ON(req->r_mtime.tv_sec || req->r_mtime.tv_nsec || 1425bb873b53SIlya Dryomov req->r_data_offset || req->r_snapc); 1426bb873b53SIlya Dryomov } 1427bb873b53SIlya Dryomov 1428bb873b53SIlya Dryomov setup_request_data(req, msg); 1429bb873b53SIlya Dryomov 1430bb873b53SIlya Dryomov ceph_encode_32(&p, 1); /* client_inc, always 1 */ 1431bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_osdc->osdmap->epoch); 1432bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_flags); 1433bb873b53SIlya Dryomov ceph_encode_timespec(p, &req->r_mtime); 1434bb873b53SIlya Dryomov p += sizeof(struct ceph_timespec); 1435bb873b53SIlya Dryomov /* aka reassert_version */ 1436bb873b53SIlya Dryomov memcpy(p, &req->r_replay_version, sizeof(req->r_replay_version)); 1437bb873b53SIlya Dryomov p += sizeof(req->r_replay_version); 1438bb873b53SIlya Dryomov 1439bb873b53SIlya Dryomov /* oloc */ 1440bb873b53SIlya Dryomov ceph_encode_8(&p, 4); 1441bb873b53SIlya Dryomov ceph_encode_8(&p, 4); 1442bb873b53SIlya Dryomov ceph_encode_32(&p, 8 + 4 + 4); 1443bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_t.target_oloc.pool); 1444bb873b53SIlya Dryomov ceph_encode_32(&p, -1); /* preferred */ 1445bb873b53SIlya Dryomov ceph_encode_32(&p, 0); /* key len */ 1446bb873b53SIlya Dryomov 1447bb873b53SIlya Dryomov /* pgid */ 1448bb873b53SIlya Dryomov ceph_encode_8(&p, 1); 1449a66dd383SIlya Dryomov ceph_encode_64(&p, req->r_t.pgid.pool); 1450a66dd383SIlya Dryomov ceph_encode_32(&p, req->r_t.pgid.seed); 1451bb873b53SIlya Dryomov ceph_encode_32(&p, -1); /* preferred */ 14522169aea6SSage Weil 1453bb873b53SIlya Dryomov /* oid */ 1454bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_t.target_oid.name_len); 1455bb873b53SIlya Dryomov memcpy(p, req->r_t.target_oid.name, req->r_t.target_oid.name_len); 1456bb873b53SIlya Dryomov p += req->r_t.target_oid.name_len; 1457bb873b53SIlya Dryomov 1458bb873b53SIlya Dryomov /* ops, can imply data */ 1459bb873b53SIlya Dryomov ceph_encode_16(&p, req->r_num_ops); 1460bb873b53SIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 1461bb873b53SIlya Dryomov data_len += osd_req_encode_op(p, &req->r_ops[i]); 1462bb873b53SIlya Dryomov p += sizeof(struct ceph_osd_op); 1463bb873b53SIlya Dryomov } 1464bb873b53SIlya Dryomov 1465bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapid); /* snapid */ 1466bb873b53SIlya Dryomov if (req->r_snapc) { 1467bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapc->seq); 1468bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_snapc->num_snaps); 1469bb873b53SIlya Dryomov for (i = 0; i < req->r_snapc->num_snaps; i++) 1470bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapc->snaps[i]); 1471bb873b53SIlya Dryomov } else { 1472bb873b53SIlya Dryomov ceph_encode_64(&p, 0); /* snap_seq */ 1473bb873b53SIlya Dryomov ceph_encode_32(&p, 0); /* snaps len */ 1474bb873b53SIlya Dryomov } 1475bb873b53SIlya Dryomov 1476bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_attempts); /* retry_attempt */ 1477bb873b53SIlya Dryomov 1478bb873b53SIlya Dryomov BUG_ON(p > end); 1479bb873b53SIlya Dryomov msg->front.iov_len = p - msg->front.iov_base; 1480bb873b53SIlya Dryomov msg->hdr.version = cpu_to_le16(4); /* MOSDOp v4 */ 1481bb873b53SIlya Dryomov msg->hdr.front_len = cpu_to_le32(msg->front.iov_len); 1482bb873b53SIlya Dryomov msg->hdr.data_len = cpu_to_le32(data_len); 1483bb873b53SIlya Dryomov /* 1484bb873b53SIlya Dryomov * The header "data_off" is a hint to the receiver allowing it 1485bb873b53SIlya Dryomov * to align received data into its buffers such that there's no 1486bb873b53SIlya Dryomov * need to re-copy it before writing it to disk (direct I/O). 1487bb873b53SIlya Dryomov */ 1488bb873b53SIlya Dryomov msg->hdr.data_off = cpu_to_le16(req->r_data_offset); 1489bb873b53SIlya Dryomov 1490bb873b53SIlya Dryomov dout("%s req %p oid %*pE oid_len %d front %zu data %u\n", __func__, 1491bb873b53SIlya Dryomov req, req->r_t.target_oid.name_len, req->r_t.target_oid.name, 1492bb873b53SIlya Dryomov req->r_t.target_oid.name_len, msg->front.iov_len, data_len); 1493bb873b53SIlya Dryomov } 1494bb873b53SIlya Dryomov 1495bb873b53SIlya Dryomov /* 1496bb873b53SIlya Dryomov * @req has to be assigned a tid and registered. 1497bb873b53SIlya Dryomov */ 1498bb873b53SIlya Dryomov static void send_request(struct ceph_osd_request *req) 1499bb873b53SIlya Dryomov { 1500bb873b53SIlya Dryomov struct ceph_osd *osd = req->r_osd; 1501bb873b53SIlya Dryomov 15025aea3dcdSIlya Dryomov verify_osd_locked(osd); 1503bb873b53SIlya Dryomov WARN_ON(osd->o_osd != req->r_t.osd); 1504bb873b53SIlya Dryomov 15055aea3dcdSIlya Dryomov /* 15065aea3dcdSIlya Dryomov * We may have a previously queued request message hanging 15075aea3dcdSIlya Dryomov * around. Cancel it to avoid corrupting the msgr. 15085aea3dcdSIlya Dryomov */ 15095aea3dcdSIlya Dryomov if (req->r_sent) 15105aea3dcdSIlya Dryomov ceph_msg_revoke(req->r_request); 15115aea3dcdSIlya Dryomov 1512bb873b53SIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_KNOWN_REDIR; 1513bb873b53SIlya Dryomov if (req->r_attempts) 1514bb873b53SIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_RETRY; 1515bb873b53SIlya Dryomov else 1516bb873b53SIlya Dryomov WARN_ON(req->r_flags & CEPH_OSD_FLAG_RETRY); 1517bb873b53SIlya Dryomov 1518bb873b53SIlya Dryomov encode_request(req, req->r_request); 1519bb873b53SIlya Dryomov 1520bb873b53SIlya Dryomov dout("%s req %p tid %llu to pg %llu.%x osd%d flags 0x%x attempt %d\n", 1521bb873b53SIlya Dryomov __func__, req, req->r_tid, req->r_t.pgid.pool, req->r_t.pgid.seed, 1522bb873b53SIlya Dryomov req->r_t.osd, req->r_flags, req->r_attempts); 1523bb873b53SIlya Dryomov 1524bb873b53SIlya Dryomov req->r_t.paused = false; 15253d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 1526bb873b53SIlya Dryomov req->r_attempts++; 15273d14c5d2SYehuda Sadeh 1528bb873b53SIlya Dryomov req->r_sent = osd->o_incarnation; 1529bb873b53SIlya Dryomov req->r_request->hdr.tid = cpu_to_le64(req->r_tid); 1530bb873b53SIlya Dryomov ceph_con_send(&osd->o_con, ceph_msg_get(req->r_request)); 15313d14c5d2SYehuda Sadeh } 15323d14c5d2SYehuda Sadeh 153342c1b124SIlya Dryomov static void maybe_request_map(struct ceph_osd_client *osdc) 153442c1b124SIlya Dryomov { 153542c1b124SIlya Dryomov bool continuous = false; 153642c1b124SIlya Dryomov 15375aea3dcdSIlya Dryomov verify_osdc_locked(osdc); 153842c1b124SIlya Dryomov WARN_ON(!osdc->osdmap->epoch); 153942c1b124SIlya Dryomov 154042c1b124SIlya Dryomov if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 154142c1b124SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD) || 154242c1b124SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR)) { 154342c1b124SIlya Dryomov dout("%s osdc %p continuous\n", __func__, osdc); 154442c1b124SIlya Dryomov continuous = true; 154542c1b124SIlya Dryomov } else { 154642c1b124SIlya Dryomov dout("%s osdc %p onetime\n", __func__, osdc); 154742c1b124SIlya Dryomov } 154842c1b124SIlya Dryomov 154942c1b124SIlya Dryomov if (ceph_monc_want_map(&osdc->client->monc, CEPH_SUB_OSDMAP, 155042c1b124SIlya Dryomov osdc->osdmap->epoch + 1, continuous)) 155142c1b124SIlya Dryomov ceph_monc_renew_subs(&osdc->client->monc); 155242c1b124SIlya Dryomov } 155342c1b124SIlya Dryomov 15545aea3dcdSIlya Dryomov static void __submit_request(struct ceph_osd_request *req, bool wrlocked) 15550bbfdfe8SIlya Dryomov { 15565aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 15575aea3dcdSIlya Dryomov struct ceph_osd *osd; 15585aea3dcdSIlya Dryomov bool need_send = false; 15595aea3dcdSIlya Dryomov bool promoted = false; 15600bbfdfe8SIlya Dryomov 15615aea3dcdSIlya Dryomov WARN_ON(req->r_tid || req->r_got_reply); 15625aea3dcdSIlya Dryomov dout("%s req %p wrlocked %d\n", __func__, req, wrlocked); 15635aea3dcdSIlya Dryomov 15645aea3dcdSIlya Dryomov again: 15655aea3dcdSIlya Dryomov calc_target(osdc, &req->r_t, &req->r_last_force_resend, false); 15665aea3dcdSIlya Dryomov osd = lookup_create_osd(osdc, req->r_t.osd, wrlocked); 15675aea3dcdSIlya Dryomov if (IS_ERR(osd)) { 15685aea3dcdSIlya Dryomov WARN_ON(PTR_ERR(osd) != -EAGAIN || wrlocked); 15695aea3dcdSIlya Dryomov goto promote; 15705aea3dcdSIlya Dryomov } 15715aea3dcdSIlya Dryomov 15725aea3dcdSIlya Dryomov if ((req->r_flags & CEPH_OSD_FLAG_WRITE) && 15735aea3dcdSIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR)) { 15745aea3dcdSIlya Dryomov dout("req %p pausewr\n", req); 15755aea3dcdSIlya Dryomov req->r_t.paused = true; 15765aea3dcdSIlya Dryomov maybe_request_map(osdc); 15775aea3dcdSIlya Dryomov } else if ((req->r_flags & CEPH_OSD_FLAG_READ) && 15785aea3dcdSIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD)) { 15795aea3dcdSIlya Dryomov dout("req %p pauserd\n", req); 15805aea3dcdSIlya Dryomov req->r_t.paused = true; 15815aea3dcdSIlya Dryomov maybe_request_map(osdc); 15825aea3dcdSIlya Dryomov } else if ((req->r_flags & CEPH_OSD_FLAG_WRITE) && 15835aea3dcdSIlya Dryomov !(req->r_flags & (CEPH_OSD_FLAG_FULL_TRY | 15845aea3dcdSIlya Dryomov CEPH_OSD_FLAG_FULL_FORCE)) && 15855aea3dcdSIlya Dryomov (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 15865aea3dcdSIlya Dryomov pool_full(osdc, req->r_t.base_oloc.pool))) { 15875aea3dcdSIlya Dryomov dout("req %p full/pool_full\n", req); 15885aea3dcdSIlya Dryomov pr_warn_ratelimited("FULL or reached pool quota\n"); 15895aea3dcdSIlya Dryomov req->r_t.paused = true; 15905aea3dcdSIlya Dryomov maybe_request_map(osdc); 15915aea3dcdSIlya Dryomov } else if (!osd_homeless(osd)) { 15925aea3dcdSIlya Dryomov need_send = true; 15930bbfdfe8SIlya Dryomov } else { 15945aea3dcdSIlya Dryomov maybe_request_map(osdc); 15950bbfdfe8SIlya Dryomov } 15960bbfdfe8SIlya Dryomov 15975aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 15985aea3dcdSIlya Dryomov /* 15995aea3dcdSIlya Dryomov * Assign the tid atomically with send_request() to protect 16005aea3dcdSIlya Dryomov * multiple writes to the same object from racing with each 16015aea3dcdSIlya Dryomov * other, resulting in out of order ops on the OSDs. 16025aea3dcdSIlya Dryomov */ 16035aea3dcdSIlya Dryomov req->r_tid = atomic64_inc_return(&osdc->last_tid); 16045aea3dcdSIlya Dryomov link_request(osd, req); 16055aea3dcdSIlya Dryomov if (need_send) 16065aea3dcdSIlya Dryomov send_request(req); 16075aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 16085aea3dcdSIlya Dryomov 16095aea3dcdSIlya Dryomov if (promoted) 16105aea3dcdSIlya Dryomov downgrade_write(&osdc->lock); 16115aea3dcdSIlya Dryomov return; 16125aea3dcdSIlya Dryomov 16135aea3dcdSIlya Dryomov promote: 16145aea3dcdSIlya Dryomov up_read(&osdc->lock); 16155aea3dcdSIlya Dryomov down_write(&osdc->lock); 16165aea3dcdSIlya Dryomov wrlocked = true; 16175aea3dcdSIlya Dryomov promoted = true; 16185aea3dcdSIlya Dryomov goto again; 16190bbfdfe8SIlya Dryomov } 16200bbfdfe8SIlya Dryomov 16215aea3dcdSIlya Dryomov static void account_request(struct ceph_osd_request *req) 16225aea3dcdSIlya Dryomov { 16235aea3dcdSIlya Dryomov unsigned int mask = CEPH_OSD_FLAG_ACK | CEPH_OSD_FLAG_ONDISK; 16245aea3dcdSIlya Dryomov 16255aea3dcdSIlya Dryomov if (req->r_flags & CEPH_OSD_FLAG_READ) { 16265aea3dcdSIlya Dryomov WARN_ON(req->r_flags & mask); 16275aea3dcdSIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_ACK; 16285aea3dcdSIlya Dryomov } else if (req->r_flags & CEPH_OSD_FLAG_WRITE) 16295aea3dcdSIlya Dryomov WARN_ON(!(req->r_flags & mask)); 16305aea3dcdSIlya Dryomov else 16315aea3dcdSIlya Dryomov WARN_ON(1); 16325aea3dcdSIlya Dryomov 16335aea3dcdSIlya Dryomov WARN_ON(req->r_unsafe_callback && (req->r_flags & mask) != mask); 16345aea3dcdSIlya Dryomov atomic_inc(&req->r_osdc->num_requests); 16355aea3dcdSIlya Dryomov } 16365aea3dcdSIlya Dryomov 16375aea3dcdSIlya Dryomov static void submit_request(struct ceph_osd_request *req, bool wrlocked) 16385aea3dcdSIlya Dryomov { 16395aea3dcdSIlya Dryomov ceph_osdc_get_request(req); 16405aea3dcdSIlya Dryomov account_request(req); 16415aea3dcdSIlya Dryomov __submit_request(req, wrlocked); 16425aea3dcdSIlya Dryomov } 16435aea3dcdSIlya Dryomov 16445aea3dcdSIlya Dryomov static void __finish_request(struct ceph_osd_request *req) 16455aea3dcdSIlya Dryomov { 16465aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 16475aea3dcdSIlya Dryomov struct ceph_osd *osd = req->r_osd; 16485aea3dcdSIlya Dryomov 16495aea3dcdSIlya Dryomov verify_osd_locked(osd); 16505aea3dcdSIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 16515aea3dcdSIlya Dryomov 16525aea3dcdSIlya Dryomov unlink_request(osd, req); 16535aea3dcdSIlya Dryomov atomic_dec(&osdc->num_requests); 16545aea3dcdSIlya Dryomov 16555aea3dcdSIlya Dryomov /* 16565aea3dcdSIlya Dryomov * If an OSD has failed or returned and a request has been sent 16575aea3dcdSIlya Dryomov * twice, it's possible to get a reply and end up here while the 16585aea3dcdSIlya Dryomov * request message is queued for delivery. We will ignore the 16595aea3dcdSIlya Dryomov * reply, so not a big deal, but better to try and catch it. 16605aea3dcdSIlya Dryomov */ 16615aea3dcdSIlya Dryomov ceph_msg_revoke(req->r_request); 16625aea3dcdSIlya Dryomov ceph_msg_revoke_incoming(req->r_reply); 16635aea3dcdSIlya Dryomov } 16645aea3dcdSIlya Dryomov 16655aea3dcdSIlya Dryomov static void finish_request(struct ceph_osd_request *req) 16665aea3dcdSIlya Dryomov { 16675aea3dcdSIlya Dryomov __finish_request(req); 16685aea3dcdSIlya Dryomov ceph_osdc_put_request(req); 16690bbfdfe8SIlya Dryomov } 16700bbfdfe8SIlya Dryomov 1671fe5da05eSIlya Dryomov static void __complete_request(struct ceph_osd_request *req) 1672fe5da05eSIlya Dryomov { 1673fe5da05eSIlya Dryomov if (req->r_callback) 1674fe5da05eSIlya Dryomov req->r_callback(req); 1675fe5da05eSIlya Dryomov else 1676fe5da05eSIlya Dryomov complete_all(&req->r_completion); 1677fe5da05eSIlya Dryomov } 1678fe5da05eSIlya Dryomov 16795aea3dcdSIlya Dryomov static void cancel_request(struct ceph_osd_request *req) 16805aea3dcdSIlya Dryomov { 16815aea3dcdSIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 16825aea3dcdSIlya Dryomov 16835aea3dcdSIlya Dryomov finish_request(req); 16845aea3dcdSIlya Dryomov } 16855aea3dcdSIlya Dryomov 16860bbfdfe8SIlya Dryomov /* 1687fbca9635SIlya Dryomov * Timeout callback, called every N seconds. When 1 or more OSD 1688fbca9635SIlya Dryomov * requests has been active for more than N seconds, we send a keepalive 1689fbca9635SIlya Dryomov * (tag + timestamp) to its OSD to ensure any communications channel 1690fbca9635SIlya Dryomov * reset is detected. 16913d14c5d2SYehuda Sadeh */ 16923d14c5d2SYehuda Sadeh static void handle_timeout(struct work_struct *work) 16933d14c5d2SYehuda Sadeh { 16943d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 16953d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, timeout_work.work); 1696a319bf56SIlya Dryomov struct ceph_options *opts = osdc->client->options; 16975aea3dcdSIlya Dryomov unsigned long cutoff = jiffies - opts->osd_keepalive_timeout; 16985aea3dcdSIlya Dryomov LIST_HEAD(slow_osds); 16995aea3dcdSIlya Dryomov struct rb_node *n, *p; 17003d14c5d2SYehuda Sadeh 17015aea3dcdSIlya Dryomov dout("%s osdc %p\n", __func__, osdc); 17025aea3dcdSIlya Dryomov down_write(&osdc->lock); 17033d14c5d2SYehuda Sadeh 17043d14c5d2SYehuda Sadeh /* 17053d14c5d2SYehuda Sadeh * ping osds that are a bit slow. this ensures that if there 17063d14c5d2SYehuda Sadeh * is a break in the TCP connection we will notice, and reopen 17073d14c5d2SYehuda Sadeh * a connection with that osd (from the fault callback). 17083d14c5d2SYehuda Sadeh */ 17095aea3dcdSIlya Dryomov for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { 17105aea3dcdSIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 17115aea3dcdSIlya Dryomov bool found = false; 17123d14c5d2SYehuda Sadeh 17135aea3dcdSIlya Dryomov for (p = rb_first(&osd->o_requests); p; p = rb_next(p)) { 17145aea3dcdSIlya Dryomov struct ceph_osd_request *req = 17155aea3dcdSIlya Dryomov rb_entry(p, struct ceph_osd_request, r_node); 17165aea3dcdSIlya Dryomov 17175aea3dcdSIlya Dryomov if (time_before(req->r_stamp, cutoff)) { 17185aea3dcdSIlya Dryomov dout(" req %p tid %llu on osd%d is laggy\n", 17195aea3dcdSIlya Dryomov req, req->r_tid, osd->o_osd); 17205aea3dcdSIlya Dryomov found = true; 17215aea3dcdSIlya Dryomov } 17225aea3dcdSIlya Dryomov } 17235aea3dcdSIlya Dryomov 17245aea3dcdSIlya Dryomov if (found) 17253d14c5d2SYehuda Sadeh list_move_tail(&osd->o_keepalive_item, &slow_osds); 17263d14c5d2SYehuda Sadeh } 17275aea3dcdSIlya Dryomov 17285aea3dcdSIlya Dryomov if (atomic_read(&osdc->num_homeless) || !list_empty(&slow_osds)) 17295aea3dcdSIlya Dryomov maybe_request_map(osdc); 17305aea3dcdSIlya Dryomov 17313d14c5d2SYehuda Sadeh while (!list_empty(&slow_osds)) { 17325aea3dcdSIlya Dryomov struct ceph_osd *osd = list_first_entry(&slow_osds, 17335aea3dcdSIlya Dryomov struct ceph_osd, 17343d14c5d2SYehuda Sadeh o_keepalive_item); 17353d14c5d2SYehuda Sadeh list_del_init(&osd->o_keepalive_item); 17363d14c5d2SYehuda Sadeh ceph_con_keepalive(&osd->o_con); 17373d14c5d2SYehuda Sadeh } 17383d14c5d2SYehuda Sadeh 17395aea3dcdSIlya Dryomov up_write(&osdc->lock); 1740fbca9635SIlya Dryomov schedule_delayed_work(&osdc->timeout_work, 1741fbca9635SIlya Dryomov osdc->client->options->osd_keepalive_timeout); 17423d14c5d2SYehuda Sadeh } 17433d14c5d2SYehuda Sadeh 17443d14c5d2SYehuda Sadeh static void handle_osds_timeout(struct work_struct *work) 17453d14c5d2SYehuda Sadeh { 17463d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 17473d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, 17483d14c5d2SYehuda Sadeh osds_timeout_work.work); 1749a319bf56SIlya Dryomov unsigned long delay = osdc->client->options->osd_idle_ttl / 4; 175042a2c09fSIlya Dryomov struct ceph_osd *osd, *nosd; 17513d14c5d2SYehuda Sadeh 175242a2c09fSIlya Dryomov dout("%s osdc %p\n", __func__, osdc); 17535aea3dcdSIlya Dryomov down_write(&osdc->lock); 175442a2c09fSIlya Dryomov list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { 175542a2c09fSIlya Dryomov if (time_before(jiffies, osd->lru_ttl)) 175642a2c09fSIlya Dryomov break; 175742a2c09fSIlya Dryomov 17585aea3dcdSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_requests)); 17595aea3dcdSIlya Dryomov WARN_ON(!list_empty(&osd->o_linger_requests)); 17605aea3dcdSIlya Dryomov close_osd(osd); 176142a2c09fSIlya Dryomov } 176242a2c09fSIlya Dryomov 17635aea3dcdSIlya Dryomov up_write(&osdc->lock); 17643d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->osds_timeout_work, 17653d14c5d2SYehuda Sadeh round_jiffies_relative(delay)); 17663d14c5d2SYehuda Sadeh } 17673d14c5d2SYehuda Sadeh 1768205ee118SIlya Dryomov static int ceph_oloc_decode(void **p, void *end, 1769205ee118SIlya Dryomov struct ceph_object_locator *oloc) 1770205ee118SIlya Dryomov { 1771205ee118SIlya Dryomov u8 struct_v, struct_cv; 1772205ee118SIlya Dryomov u32 len; 1773205ee118SIlya Dryomov void *struct_end; 1774205ee118SIlya Dryomov int ret = 0; 1775205ee118SIlya Dryomov 1776205ee118SIlya Dryomov ceph_decode_need(p, end, 1 + 1 + 4, e_inval); 1777205ee118SIlya Dryomov struct_v = ceph_decode_8(p); 1778205ee118SIlya Dryomov struct_cv = ceph_decode_8(p); 1779205ee118SIlya Dryomov if (struct_v < 3) { 1780205ee118SIlya Dryomov pr_warn("got v %d < 3 cv %d of ceph_object_locator\n", 1781205ee118SIlya Dryomov struct_v, struct_cv); 1782205ee118SIlya Dryomov goto e_inval; 1783205ee118SIlya Dryomov } 1784205ee118SIlya Dryomov if (struct_cv > 6) { 1785205ee118SIlya Dryomov pr_warn("got v %d cv %d > 6 of ceph_object_locator\n", 1786205ee118SIlya Dryomov struct_v, struct_cv); 1787205ee118SIlya Dryomov goto e_inval; 1788205ee118SIlya Dryomov } 1789205ee118SIlya Dryomov len = ceph_decode_32(p); 1790205ee118SIlya Dryomov ceph_decode_need(p, end, len, e_inval); 1791205ee118SIlya Dryomov struct_end = *p + len; 1792205ee118SIlya Dryomov 1793205ee118SIlya Dryomov oloc->pool = ceph_decode_64(p); 1794205ee118SIlya Dryomov *p += 4; /* skip preferred */ 1795205ee118SIlya Dryomov 1796205ee118SIlya Dryomov len = ceph_decode_32(p); 1797205ee118SIlya Dryomov if (len > 0) { 1798205ee118SIlya Dryomov pr_warn("ceph_object_locator::key is set\n"); 1799205ee118SIlya Dryomov goto e_inval; 1800205ee118SIlya Dryomov } 1801205ee118SIlya Dryomov 1802205ee118SIlya Dryomov if (struct_v >= 5) { 1803205ee118SIlya Dryomov len = ceph_decode_32(p); 1804205ee118SIlya Dryomov if (len > 0) { 1805205ee118SIlya Dryomov pr_warn("ceph_object_locator::nspace is set\n"); 1806205ee118SIlya Dryomov goto e_inval; 1807205ee118SIlya Dryomov } 1808205ee118SIlya Dryomov } 1809205ee118SIlya Dryomov 1810205ee118SIlya Dryomov if (struct_v >= 6) { 1811205ee118SIlya Dryomov s64 hash = ceph_decode_64(p); 1812205ee118SIlya Dryomov if (hash != -1) { 1813205ee118SIlya Dryomov pr_warn("ceph_object_locator::hash is set\n"); 1814205ee118SIlya Dryomov goto e_inval; 1815205ee118SIlya Dryomov } 1816205ee118SIlya Dryomov } 1817205ee118SIlya Dryomov 1818205ee118SIlya Dryomov /* skip the rest */ 1819205ee118SIlya Dryomov *p = struct_end; 1820205ee118SIlya Dryomov out: 1821205ee118SIlya Dryomov return ret; 1822205ee118SIlya Dryomov 1823205ee118SIlya Dryomov e_inval: 1824205ee118SIlya Dryomov ret = -EINVAL; 1825205ee118SIlya Dryomov goto out; 1826205ee118SIlya Dryomov } 1827205ee118SIlya Dryomov 1828205ee118SIlya Dryomov static int ceph_redirect_decode(void **p, void *end, 1829205ee118SIlya Dryomov struct ceph_request_redirect *redir) 1830205ee118SIlya Dryomov { 1831205ee118SIlya Dryomov u8 struct_v, struct_cv; 1832205ee118SIlya Dryomov u32 len; 1833205ee118SIlya Dryomov void *struct_end; 1834205ee118SIlya Dryomov int ret; 1835205ee118SIlya Dryomov 1836205ee118SIlya Dryomov ceph_decode_need(p, end, 1 + 1 + 4, e_inval); 1837205ee118SIlya Dryomov struct_v = ceph_decode_8(p); 1838205ee118SIlya Dryomov struct_cv = ceph_decode_8(p); 1839205ee118SIlya Dryomov if (struct_cv > 1) { 1840205ee118SIlya Dryomov pr_warn("got v %d cv %d > 1 of ceph_request_redirect\n", 1841205ee118SIlya Dryomov struct_v, struct_cv); 1842205ee118SIlya Dryomov goto e_inval; 1843205ee118SIlya Dryomov } 1844205ee118SIlya Dryomov len = ceph_decode_32(p); 1845205ee118SIlya Dryomov ceph_decode_need(p, end, len, e_inval); 1846205ee118SIlya Dryomov struct_end = *p + len; 1847205ee118SIlya Dryomov 1848205ee118SIlya Dryomov ret = ceph_oloc_decode(p, end, &redir->oloc); 1849205ee118SIlya Dryomov if (ret) 1850205ee118SIlya Dryomov goto out; 1851205ee118SIlya Dryomov 1852205ee118SIlya Dryomov len = ceph_decode_32(p); 1853205ee118SIlya Dryomov if (len > 0) { 1854205ee118SIlya Dryomov pr_warn("ceph_request_redirect::object_name is set\n"); 1855205ee118SIlya Dryomov goto e_inval; 1856205ee118SIlya Dryomov } 1857205ee118SIlya Dryomov 1858205ee118SIlya Dryomov len = ceph_decode_32(p); 1859205ee118SIlya Dryomov *p += len; /* skip osd_instructions */ 1860205ee118SIlya Dryomov 1861205ee118SIlya Dryomov /* skip the rest */ 1862205ee118SIlya Dryomov *p = struct_end; 1863205ee118SIlya Dryomov out: 1864205ee118SIlya Dryomov return ret; 1865205ee118SIlya Dryomov 1866205ee118SIlya Dryomov e_inval: 1867205ee118SIlya Dryomov ret = -EINVAL; 1868205ee118SIlya Dryomov goto out; 1869205ee118SIlya Dryomov } 1870205ee118SIlya Dryomov 1871fe5da05eSIlya Dryomov struct MOSDOpReply { 1872fe5da05eSIlya Dryomov struct ceph_pg pgid; 1873fe5da05eSIlya Dryomov u64 flags; 1874fe5da05eSIlya Dryomov int result; 1875fe5da05eSIlya Dryomov u32 epoch; 1876fe5da05eSIlya Dryomov int num_ops; 1877fe5da05eSIlya Dryomov u32 outdata_len[CEPH_OSD_MAX_OPS]; 1878fe5da05eSIlya Dryomov s32 rval[CEPH_OSD_MAX_OPS]; 1879fe5da05eSIlya Dryomov int retry_attempt; 1880fe5da05eSIlya Dryomov struct ceph_eversion replay_version; 1881fe5da05eSIlya Dryomov u64 user_version; 1882fe5da05eSIlya Dryomov struct ceph_request_redirect redirect; 1883fe5da05eSIlya Dryomov }; 188425845472SSage Weil 1885fe5da05eSIlya Dryomov static int decode_MOSDOpReply(const struct ceph_msg *msg, struct MOSDOpReply *m) 18863d14c5d2SYehuda Sadeh { 1887fe5da05eSIlya Dryomov void *p = msg->front.iov_base; 1888fe5da05eSIlya Dryomov void *const end = p + msg->front.iov_len; 1889fe5da05eSIlya Dryomov u16 version = le16_to_cpu(msg->hdr.version); 1890fe5da05eSIlya Dryomov struct ceph_eversion bad_replay_version; 1891b0b31a8fSIlya Dryomov u8 decode_redir; 1892fe5da05eSIlya Dryomov u32 len; 1893fe5da05eSIlya Dryomov int ret; 1894fe5da05eSIlya Dryomov int i; 18953d14c5d2SYehuda Sadeh 1896fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, len, e_inval); 1897fe5da05eSIlya Dryomov ceph_decode_need(&p, end, len, e_inval); 1898fe5da05eSIlya Dryomov p += len; /* skip oid */ 18991b83bef2SSage Weil 1900fe5da05eSIlya Dryomov ret = ceph_decode_pgid(&p, end, &m->pgid); 1901fe5da05eSIlya Dryomov if (ret) 1902fe5da05eSIlya Dryomov return ret; 19031b83bef2SSage Weil 1904fe5da05eSIlya Dryomov ceph_decode_64_safe(&p, end, m->flags, e_inval); 1905fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->result, e_inval); 1906fe5da05eSIlya Dryomov ceph_decode_need(&p, end, sizeof(bad_replay_version), e_inval); 1907fe5da05eSIlya Dryomov memcpy(&bad_replay_version, p, sizeof(bad_replay_version)); 1908fe5da05eSIlya Dryomov p += sizeof(bad_replay_version); 1909fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->epoch, e_inval); 19101b83bef2SSage Weil 1911fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->num_ops, e_inval); 1912fe5da05eSIlya Dryomov if (m->num_ops > ARRAY_SIZE(m->outdata_len)) 1913fe5da05eSIlya Dryomov goto e_inval; 19141b83bef2SSage Weil 1915fe5da05eSIlya Dryomov ceph_decode_need(&p, end, m->num_ops * sizeof(struct ceph_osd_op), 1916fe5da05eSIlya Dryomov e_inval); 1917fe5da05eSIlya Dryomov for (i = 0; i < m->num_ops; i++) { 19181b83bef2SSage Weil struct ceph_osd_op *op = p; 19191b83bef2SSage Weil 1920fe5da05eSIlya Dryomov m->outdata_len[i] = le32_to_cpu(op->payload_len); 19211b83bef2SSage Weil p += sizeof(*op); 19221b83bef2SSage Weil } 1923fe5da05eSIlya Dryomov 1924fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->retry_attempt, e_inval); 1925fe5da05eSIlya Dryomov for (i = 0; i < m->num_ops; i++) 1926fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->rval[i], e_inval); 1927fe5da05eSIlya Dryomov 1928fe5da05eSIlya Dryomov if (version >= 5) { 1929fe5da05eSIlya Dryomov ceph_decode_need(&p, end, sizeof(m->replay_version), e_inval); 1930fe5da05eSIlya Dryomov memcpy(&m->replay_version, p, sizeof(m->replay_version)); 1931fe5da05eSIlya Dryomov p += sizeof(m->replay_version); 1932fe5da05eSIlya Dryomov ceph_decode_64_safe(&p, end, m->user_version, e_inval); 1933fe5da05eSIlya Dryomov } else { 1934fe5da05eSIlya Dryomov m->replay_version = bad_replay_version; /* struct */ 1935fe5da05eSIlya Dryomov m->user_version = le64_to_cpu(m->replay_version.version); 19361b83bef2SSage Weil } 19371b83bef2SSage Weil 1938fe5da05eSIlya Dryomov if (version >= 6) { 1939fe5da05eSIlya Dryomov if (version >= 7) 1940fe5da05eSIlya Dryomov ceph_decode_8_safe(&p, end, decode_redir, e_inval); 1941b0b31a8fSIlya Dryomov else 1942b0b31a8fSIlya Dryomov decode_redir = 1; 1943b0b31a8fSIlya Dryomov } else { 1944b0b31a8fSIlya Dryomov decode_redir = 0; 1945b0b31a8fSIlya Dryomov } 1946b0b31a8fSIlya Dryomov 1947b0b31a8fSIlya Dryomov if (decode_redir) { 1948fe5da05eSIlya Dryomov ret = ceph_redirect_decode(&p, end, &m->redirect); 1949fe5da05eSIlya Dryomov if (ret) 1950fe5da05eSIlya Dryomov return ret; 1951205ee118SIlya Dryomov } else { 1952fe5da05eSIlya Dryomov ceph_oloc_init(&m->redirect.oloc); 1953205ee118SIlya Dryomov } 1954205ee118SIlya Dryomov 1955fe5da05eSIlya Dryomov return 0; 1956205ee118SIlya Dryomov 1957fe5da05eSIlya Dryomov e_inval: 1958fe5da05eSIlya Dryomov return -EINVAL; 1959fe5da05eSIlya Dryomov } 1960fe5da05eSIlya Dryomov 1961fe5da05eSIlya Dryomov /* 1962fe5da05eSIlya Dryomov * We are done with @req if 1963fe5da05eSIlya Dryomov * - @m is a safe reply, or 1964fe5da05eSIlya Dryomov * - @m is an unsafe reply and we didn't want a safe one 1965fe5da05eSIlya Dryomov */ 1966fe5da05eSIlya Dryomov static bool done_request(const struct ceph_osd_request *req, 1967fe5da05eSIlya Dryomov const struct MOSDOpReply *m) 1968fe5da05eSIlya Dryomov { 1969fe5da05eSIlya Dryomov return (m->result < 0 || 1970fe5da05eSIlya Dryomov (m->flags & CEPH_OSD_FLAG_ONDISK) || 1971fe5da05eSIlya Dryomov !(req->r_flags & CEPH_OSD_FLAG_ONDISK)); 1972fe5da05eSIlya Dryomov } 1973fe5da05eSIlya Dryomov 1974fe5da05eSIlya Dryomov /* 1975fe5da05eSIlya Dryomov * handle osd op reply. either call the callback if it is specified, 1976fe5da05eSIlya Dryomov * or do the completion to wake up the waiting thread. 1977fe5da05eSIlya Dryomov * 1978fe5da05eSIlya Dryomov * ->r_unsafe_callback is set? yes no 1979fe5da05eSIlya Dryomov * 1980fe5da05eSIlya Dryomov * first reply is OK (needed r_cb/r_completion, r_cb/r_completion, 1981fe5da05eSIlya Dryomov * any or needed/got safe) r_safe_completion r_safe_completion 1982fe5da05eSIlya Dryomov * 1983fe5da05eSIlya Dryomov * first reply is unsafe r_unsafe_cb(true) (nothing) 1984fe5da05eSIlya Dryomov * 1985fe5da05eSIlya Dryomov * when we get the safe reply r_unsafe_cb(false), r_cb/r_completion, 1986fe5da05eSIlya Dryomov * r_safe_completion r_safe_completion 1987fe5da05eSIlya Dryomov */ 19885aea3dcdSIlya Dryomov static void handle_reply(struct ceph_osd *osd, struct ceph_msg *msg) 1989fe5da05eSIlya Dryomov { 19905aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 1991fe5da05eSIlya Dryomov struct ceph_osd_request *req; 1992fe5da05eSIlya Dryomov struct MOSDOpReply m; 1993fe5da05eSIlya Dryomov u64 tid = le64_to_cpu(msg->hdr.tid); 1994fe5da05eSIlya Dryomov u32 data_len = 0; 1995fe5da05eSIlya Dryomov bool already_acked; 1996fe5da05eSIlya Dryomov int ret; 1997fe5da05eSIlya Dryomov int i; 1998fe5da05eSIlya Dryomov 1999fe5da05eSIlya Dryomov dout("%s msg %p tid %llu\n", __func__, msg, tid); 2000fe5da05eSIlya Dryomov 20015aea3dcdSIlya Dryomov down_read(&osdc->lock); 20025aea3dcdSIlya Dryomov if (!osd_registered(osd)) { 20035aea3dcdSIlya Dryomov dout("%s osd%d unknown\n", __func__, osd->o_osd); 20045aea3dcdSIlya Dryomov goto out_unlock_osdc; 2005fe5da05eSIlya Dryomov } 20065aea3dcdSIlya Dryomov WARN_ON(osd->o_osd != le64_to_cpu(msg->hdr.src.num)); 20075aea3dcdSIlya Dryomov 20085aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 20095aea3dcdSIlya Dryomov req = lookup_request(&osd->o_requests, tid); 20105aea3dcdSIlya Dryomov if (!req) { 20115aea3dcdSIlya Dryomov dout("%s osd%d tid %llu unknown\n", __func__, osd->o_osd, tid); 20125aea3dcdSIlya Dryomov goto out_unlock_session; 20135aea3dcdSIlya Dryomov } 2014fe5da05eSIlya Dryomov 2015fe5da05eSIlya Dryomov ret = decode_MOSDOpReply(msg, &m); 2016fe5da05eSIlya Dryomov if (ret) { 2017fe5da05eSIlya Dryomov pr_err("failed to decode MOSDOpReply for tid %llu: %d\n", 2018fe5da05eSIlya Dryomov req->r_tid, ret); 2019fe5da05eSIlya Dryomov ceph_msg_dump(msg); 2020fe5da05eSIlya Dryomov goto fail_request; 2021fe5da05eSIlya Dryomov } 2022fe5da05eSIlya Dryomov dout("%s req %p tid %llu flags 0x%llx pgid %llu.%x epoch %u attempt %d v %u'%llu uv %llu\n", 2023fe5da05eSIlya Dryomov __func__, req, req->r_tid, m.flags, m.pgid.pool, m.pgid.seed, 2024fe5da05eSIlya Dryomov m.epoch, m.retry_attempt, le32_to_cpu(m.replay_version.epoch), 2025fe5da05eSIlya Dryomov le64_to_cpu(m.replay_version.version), m.user_version); 2026fe5da05eSIlya Dryomov 2027fe5da05eSIlya Dryomov if (m.retry_attempt >= 0) { 2028fe5da05eSIlya Dryomov if (m.retry_attempt != req->r_attempts - 1) { 2029fe5da05eSIlya Dryomov dout("req %p tid %llu retry_attempt %d != %d, ignoring\n", 2030fe5da05eSIlya Dryomov req, req->r_tid, m.retry_attempt, 2031fe5da05eSIlya Dryomov req->r_attempts - 1); 20325aea3dcdSIlya Dryomov goto out_unlock_session; 2033fe5da05eSIlya Dryomov } 2034fe5da05eSIlya Dryomov } else { 2035fe5da05eSIlya Dryomov WARN_ON(1); /* MOSDOpReply v4 is assumed */ 2036fe5da05eSIlya Dryomov } 2037fe5da05eSIlya Dryomov 2038fe5da05eSIlya Dryomov if (!ceph_oloc_empty(&m.redirect.oloc)) { 2039fe5da05eSIlya Dryomov dout("req %p tid %llu redirect pool %lld\n", req, req->r_tid, 2040fe5da05eSIlya Dryomov m.redirect.oloc.pool); 20415aea3dcdSIlya Dryomov unlink_request(osd, req); 20425aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 2043205ee118SIlya Dryomov 2044fe5da05eSIlya Dryomov ceph_oloc_copy(&req->r_t.target_oloc, &m.redirect.oloc); 20455aea3dcdSIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_REDIRECTED; 20465aea3dcdSIlya Dryomov req->r_tid = 0; 20475aea3dcdSIlya Dryomov __submit_request(req, false); 20485aea3dcdSIlya Dryomov goto out_unlock_osdc; 2049205ee118SIlya Dryomov } 2050205ee118SIlya Dryomov 2051fe5da05eSIlya Dryomov if (m.num_ops != req->r_num_ops) { 2052fe5da05eSIlya Dryomov pr_err("num_ops %d != %d for tid %llu\n", m.num_ops, 2053fe5da05eSIlya Dryomov req->r_num_ops, req->r_tid); 2054fe5da05eSIlya Dryomov goto fail_request; 2055fe5da05eSIlya Dryomov } 2056fe5da05eSIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 2057fe5da05eSIlya Dryomov dout(" req %p tid %llu op %d rval %d len %u\n", req, 2058fe5da05eSIlya Dryomov req->r_tid, i, m.rval[i], m.outdata_len[i]); 2059fe5da05eSIlya Dryomov req->r_ops[i].rval = m.rval[i]; 2060fe5da05eSIlya Dryomov req->r_ops[i].outdata_len = m.outdata_len[i]; 2061fe5da05eSIlya Dryomov data_len += m.outdata_len[i]; 2062fe5da05eSIlya Dryomov } 2063fe5da05eSIlya Dryomov if (data_len != le32_to_cpu(msg->hdr.data_len)) { 2064fe5da05eSIlya Dryomov pr_err("sum of lens %u != %u for tid %llu\n", data_len, 2065fe5da05eSIlya Dryomov le32_to_cpu(msg->hdr.data_len), req->r_tid); 2066fe5da05eSIlya Dryomov goto fail_request; 2067fe5da05eSIlya Dryomov } 2068fe5da05eSIlya Dryomov dout("%s req %p tid %llu acked %d result %d data_len %u\n", __func__, 2069fe5da05eSIlya Dryomov req, req->r_tid, req->r_got_reply, m.result, data_len); 20703d14c5d2SYehuda Sadeh 2071fe5da05eSIlya Dryomov already_acked = req->r_got_reply; 2072fe5da05eSIlya Dryomov if (!already_acked) { 2073fe5da05eSIlya Dryomov req->r_result = m.result ?: data_len; 2074fe5da05eSIlya Dryomov req->r_replay_version = m.replay_version; /* struct */ 2075fe5da05eSIlya Dryomov req->r_got_reply = true; 2076fe5da05eSIlya Dryomov } else if (!(m.flags & CEPH_OSD_FLAG_ONDISK)) { 2077fe5da05eSIlya Dryomov dout("req %p tid %llu dup ack\n", req, req->r_tid); 20785aea3dcdSIlya Dryomov goto out_unlock_session; 20793d14c5d2SYehuda Sadeh } 20803d14c5d2SYehuda Sadeh 2081fe5da05eSIlya Dryomov if (done_request(req, &m)) { 20825aea3dcdSIlya Dryomov __finish_request(req); 2083fe5da05eSIlya Dryomov if (req->r_linger) { 2084fe5da05eSIlya Dryomov WARN_ON(req->r_unsafe_callback); 20855aea3dcdSIlya Dryomov __register_linger_request(osd, req); 2086fe5da05eSIlya Dryomov } 2087fe5da05eSIlya Dryomov } 20883d14c5d2SYehuda Sadeh 20895aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 20905aea3dcdSIlya Dryomov up_read(&osdc->lock); 20913d14c5d2SYehuda Sadeh 2092fe5da05eSIlya Dryomov if (done_request(req, &m)) { 2093fe5da05eSIlya Dryomov if (already_acked && req->r_unsafe_callback) { 2094fe5da05eSIlya Dryomov dout("req %p tid %llu safe-cb\n", req, req->r_tid); 209561c5d6bfSYan, Zheng req->r_unsafe_callback(req, false); 2096fe5da05eSIlya Dryomov } else { 2097fe5da05eSIlya Dryomov dout("req %p tid %llu cb\n", req, req->r_tid); 2098fe5da05eSIlya Dryomov __complete_request(req); 209961c5d6bfSYan, Zheng } 2100fe5da05eSIlya Dryomov } else { 2101fe5da05eSIlya Dryomov if (req->r_unsafe_callback) { 2102fe5da05eSIlya Dryomov dout("req %p tid %llu unsafe-cb\n", req, req->r_tid); 2103fe5da05eSIlya Dryomov req->r_unsafe_callback(req, true); 2104fe5da05eSIlya Dryomov } else { 2105fe5da05eSIlya Dryomov WARN_ON(1); 2106fe5da05eSIlya Dryomov } 2107fe5da05eSIlya Dryomov } 2108fe5da05eSIlya Dryomov if (m.flags & CEPH_OSD_FLAG_ONDISK) 2109fe5da05eSIlya Dryomov complete_all(&req->r_safe_completion); 21103d14c5d2SYehuda Sadeh 21113d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 21123d14c5d2SYehuda Sadeh return; 2113fe5da05eSIlya Dryomov 2114fe5da05eSIlya Dryomov fail_request: 2115fe5da05eSIlya Dryomov req->r_result = -EIO; 21165aea3dcdSIlya Dryomov __finish_request(req); 2117fe5da05eSIlya Dryomov __complete_request(req); 2118fe5da05eSIlya Dryomov complete_all(&req->r_safe_completion); 21195aea3dcdSIlya Dryomov out_unlock_session: 21205aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 21215aea3dcdSIlya Dryomov out_unlock_osdc: 21225aea3dcdSIlya Dryomov up_read(&osdc->lock); 21233d14c5d2SYehuda Sadeh } 21243d14c5d2SYehuda Sadeh 212542c1b124SIlya Dryomov static void set_pool_was_full(struct ceph_osd_client *osdc) 212642c1b124SIlya Dryomov { 212742c1b124SIlya Dryomov struct rb_node *n; 212842c1b124SIlya Dryomov 212942c1b124SIlya Dryomov for (n = rb_first(&osdc->osdmap->pg_pools); n; n = rb_next(n)) { 213042c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 213142c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 213242c1b124SIlya Dryomov 213342c1b124SIlya Dryomov pi->was_full = __pool_full(pi); 213442c1b124SIlya Dryomov } 213542c1b124SIlya Dryomov } 213642c1b124SIlya Dryomov 21375aea3dcdSIlya Dryomov static bool pool_cleared_full(struct ceph_osd_client *osdc, s64 pool_id) 21383d14c5d2SYehuda Sadeh { 21395aea3dcdSIlya Dryomov struct ceph_pg_pool_info *pi; 21403d14c5d2SYehuda Sadeh 21415aea3dcdSIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, pool_id); 21425aea3dcdSIlya Dryomov if (!pi) 21435aea3dcdSIlya Dryomov return false; 21443d14c5d2SYehuda Sadeh 21455aea3dcdSIlya Dryomov return pi->was_full && !__pool_full(pi); 21463d14c5d2SYehuda Sadeh } 21473d14c5d2SYehuda Sadeh 21483d14c5d2SYehuda Sadeh /* 21495aea3dcdSIlya Dryomov * Requeue requests whose mapping to an OSD has changed. 21503d14c5d2SYehuda Sadeh */ 21515aea3dcdSIlya Dryomov static void scan_requests(struct ceph_osd *osd, 21525aea3dcdSIlya Dryomov bool force_resend, 21535aea3dcdSIlya Dryomov bool cleared_full, 21545aea3dcdSIlya Dryomov bool check_pool_cleared_full, 21555aea3dcdSIlya Dryomov struct rb_root *need_resend, 21565aea3dcdSIlya Dryomov struct list_head *need_resend_linger) 21573d14c5d2SYehuda Sadeh { 21585aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 21595aea3dcdSIlya Dryomov struct rb_node *n; 21605aea3dcdSIlya Dryomov bool force_resend_writes; 21613d14c5d2SYehuda Sadeh 21625aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; ) { 21635aea3dcdSIlya Dryomov struct ceph_osd_request *req = 21645aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 21655aea3dcdSIlya Dryomov enum calc_target_result ct_res; 2166ab60b16dSAlex Elder 21675aea3dcdSIlya Dryomov n = rb_next(n); /* unlink_request() */ 2168ab60b16dSAlex Elder 21695aea3dcdSIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 21705aea3dcdSIlya Dryomov ct_res = calc_target(osdc, &req->r_t, 21715aea3dcdSIlya Dryomov &req->r_last_force_resend, false); 21725aea3dcdSIlya Dryomov switch (ct_res) { 21735aea3dcdSIlya Dryomov case CALC_TARGET_NO_ACTION: 21745aea3dcdSIlya Dryomov force_resend_writes = cleared_full || 21755aea3dcdSIlya Dryomov (check_pool_cleared_full && 21765aea3dcdSIlya Dryomov pool_cleared_full(osdc, req->r_t.base_oloc.pool)); 21775aea3dcdSIlya Dryomov if (!force_resend && 21785aea3dcdSIlya Dryomov (!(req->r_flags & CEPH_OSD_FLAG_WRITE) || 21795aea3dcdSIlya Dryomov !force_resend_writes)) 21805aea3dcdSIlya Dryomov break; 2181a40c4f10SYehuda Sadeh 21825aea3dcdSIlya Dryomov /* fall through */ 21835aea3dcdSIlya Dryomov case CALC_TARGET_NEED_RESEND: 21845aea3dcdSIlya Dryomov unlink_request(osd, req); 21855aea3dcdSIlya Dryomov insert_request(need_resend, req); 21865aea3dcdSIlya Dryomov break; 21875aea3dcdSIlya Dryomov case CALC_TARGET_POOL_DNE: 21885aea3dcdSIlya Dryomov break; 2189a40c4f10SYehuda Sadeh } 21903d14c5d2SYehuda Sadeh } 21913d14c5d2SYehuda Sadeh } 21926f6c7006SSage Weil 219342c1b124SIlya Dryomov static int handle_one_map(struct ceph_osd_client *osdc, 21945aea3dcdSIlya Dryomov void *p, void *end, bool incremental, 21955aea3dcdSIlya Dryomov struct rb_root *need_resend, 21965aea3dcdSIlya Dryomov struct list_head *need_resend_linger) 219742c1b124SIlya Dryomov { 219842c1b124SIlya Dryomov struct ceph_osdmap *newmap; 219942c1b124SIlya Dryomov struct rb_node *n; 220042c1b124SIlya Dryomov bool skipped_map = false; 220142c1b124SIlya Dryomov bool was_full; 220242c1b124SIlya Dryomov 220342c1b124SIlya Dryomov was_full = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL); 220442c1b124SIlya Dryomov set_pool_was_full(osdc); 220542c1b124SIlya Dryomov 220642c1b124SIlya Dryomov if (incremental) 220742c1b124SIlya Dryomov newmap = osdmap_apply_incremental(&p, end, osdc->osdmap); 220842c1b124SIlya Dryomov else 220942c1b124SIlya Dryomov newmap = ceph_osdmap_decode(&p, end); 221042c1b124SIlya Dryomov if (IS_ERR(newmap)) 221142c1b124SIlya Dryomov return PTR_ERR(newmap); 221242c1b124SIlya Dryomov 221342c1b124SIlya Dryomov if (newmap != osdc->osdmap) { 221442c1b124SIlya Dryomov /* 221542c1b124SIlya Dryomov * Preserve ->was_full before destroying the old map. 221642c1b124SIlya Dryomov * For pools that weren't in the old map, ->was_full 221742c1b124SIlya Dryomov * should be false. 221842c1b124SIlya Dryomov */ 221942c1b124SIlya Dryomov for (n = rb_first(&newmap->pg_pools); n; n = rb_next(n)) { 222042c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 222142c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 222242c1b124SIlya Dryomov struct ceph_pg_pool_info *old_pi; 222342c1b124SIlya Dryomov 222442c1b124SIlya Dryomov old_pi = ceph_pg_pool_by_id(osdc->osdmap, pi->id); 222542c1b124SIlya Dryomov if (old_pi) 222642c1b124SIlya Dryomov pi->was_full = old_pi->was_full; 222742c1b124SIlya Dryomov else 222842c1b124SIlya Dryomov WARN_ON(pi->was_full); 222942c1b124SIlya Dryomov } 223042c1b124SIlya Dryomov 223142c1b124SIlya Dryomov if (osdc->osdmap->epoch && 223242c1b124SIlya Dryomov osdc->osdmap->epoch + 1 < newmap->epoch) { 223342c1b124SIlya Dryomov WARN_ON(incremental); 223442c1b124SIlya Dryomov skipped_map = true; 223542c1b124SIlya Dryomov } 223642c1b124SIlya Dryomov 223742c1b124SIlya Dryomov ceph_osdmap_destroy(osdc->osdmap); 223842c1b124SIlya Dryomov osdc->osdmap = newmap; 223942c1b124SIlya Dryomov } 224042c1b124SIlya Dryomov 224142c1b124SIlya Dryomov was_full &= !ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL); 22425aea3dcdSIlya Dryomov scan_requests(&osdc->homeless_osd, skipped_map, was_full, true, 22435aea3dcdSIlya Dryomov need_resend, need_resend_linger); 22445aea3dcdSIlya Dryomov 22455aea3dcdSIlya Dryomov for (n = rb_first(&osdc->osds); n; ) { 22465aea3dcdSIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 22475aea3dcdSIlya Dryomov 22485aea3dcdSIlya Dryomov n = rb_next(n); /* close_osd() */ 22495aea3dcdSIlya Dryomov 22505aea3dcdSIlya Dryomov scan_requests(osd, skipped_map, was_full, true, need_resend, 22515aea3dcdSIlya Dryomov need_resend_linger); 22525aea3dcdSIlya Dryomov if (!ceph_osd_is_up(osdc->osdmap, osd->o_osd) || 22535aea3dcdSIlya Dryomov memcmp(&osd->o_con.peer_addr, 22545aea3dcdSIlya Dryomov ceph_osd_addr(osdc->osdmap, osd->o_osd), 22555aea3dcdSIlya Dryomov sizeof(struct ceph_entity_addr))) 22565aea3dcdSIlya Dryomov close_osd(osd); 22575aea3dcdSIlya Dryomov } 225842c1b124SIlya Dryomov 225942c1b124SIlya Dryomov return 0; 226042c1b124SIlya Dryomov } 22616f6c7006SSage Weil 22625aea3dcdSIlya Dryomov static void kick_requests(struct ceph_osd_client *osdc, 22635aea3dcdSIlya Dryomov struct rb_root *need_resend, 22645aea3dcdSIlya Dryomov struct list_head *need_resend_linger) 22655aea3dcdSIlya Dryomov { 22665aea3dcdSIlya Dryomov struct rb_node *n; 22675aea3dcdSIlya Dryomov 22685aea3dcdSIlya Dryomov for (n = rb_first(need_resend); n; ) { 22695aea3dcdSIlya Dryomov struct ceph_osd_request *req = 22705aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 22715aea3dcdSIlya Dryomov struct ceph_osd *osd; 22725aea3dcdSIlya Dryomov 22735aea3dcdSIlya Dryomov n = rb_next(n); 22745aea3dcdSIlya Dryomov erase_request(need_resend, req); /* before link_request() */ 22755aea3dcdSIlya Dryomov 22765aea3dcdSIlya Dryomov WARN_ON(req->r_osd); 22775aea3dcdSIlya Dryomov calc_target(osdc, &req->r_t, NULL, false); 22785aea3dcdSIlya Dryomov osd = lookup_create_osd(osdc, req->r_t.osd, true); 22795aea3dcdSIlya Dryomov link_request(osd, req); 22805aea3dcdSIlya Dryomov if (!req->r_linger) { 22815aea3dcdSIlya Dryomov if (!osd_homeless(osd) && !req->r_t.paused) 22825aea3dcdSIlya Dryomov send_request(req); 22835aea3dcdSIlya Dryomov } 22845aea3dcdSIlya Dryomov } 22855aea3dcdSIlya Dryomov } 22865aea3dcdSIlya Dryomov 22873d14c5d2SYehuda Sadeh /* 22883d14c5d2SYehuda Sadeh * Process updated osd map. 22893d14c5d2SYehuda Sadeh * 22903d14c5d2SYehuda Sadeh * The message contains any number of incremental and full maps, normally 22913d14c5d2SYehuda Sadeh * indicating some sort of topology change in the cluster. Kick requests 22923d14c5d2SYehuda Sadeh * off to different OSDs as needed. 22933d14c5d2SYehuda Sadeh */ 22943d14c5d2SYehuda Sadeh void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) 22953d14c5d2SYehuda Sadeh { 229642c1b124SIlya Dryomov void *p = msg->front.iov_base; 229742c1b124SIlya Dryomov void *const end = p + msg->front.iov_len; 22983d14c5d2SYehuda Sadeh u32 nr_maps, maplen; 22993d14c5d2SYehuda Sadeh u32 epoch; 23003d14c5d2SYehuda Sadeh struct ceph_fsid fsid; 23015aea3dcdSIlya Dryomov struct rb_root need_resend = RB_ROOT; 23025aea3dcdSIlya Dryomov LIST_HEAD(need_resend_linger); 230342c1b124SIlya Dryomov bool handled_incremental = false; 230442c1b124SIlya Dryomov bool was_pauserd, was_pausewr; 230542c1b124SIlya Dryomov bool pauserd, pausewr; 230642c1b124SIlya Dryomov int err; 23073d14c5d2SYehuda Sadeh 230842c1b124SIlya Dryomov dout("%s have %u\n", __func__, osdc->osdmap->epoch); 23095aea3dcdSIlya Dryomov down_write(&osdc->lock); 23103d14c5d2SYehuda Sadeh 23113d14c5d2SYehuda Sadeh /* verify fsid */ 23123d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, sizeof(fsid), bad); 23133d14c5d2SYehuda Sadeh ceph_decode_copy(&p, &fsid, sizeof(fsid)); 23143d14c5d2SYehuda Sadeh if (ceph_check_fsid(osdc->client, &fsid) < 0) 231542c1b124SIlya Dryomov goto bad; 23163d14c5d2SYehuda Sadeh 231742c1b124SIlya Dryomov was_pauserd = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD); 231842c1b124SIlya Dryomov was_pausewr = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR) || 231942c1b124SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 232042c1b124SIlya Dryomov have_pool_full(osdc); 23219a1ea2dbSJosh Durgin 23223d14c5d2SYehuda Sadeh /* incremental maps */ 23233d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 23243d14c5d2SYehuda Sadeh dout(" %d inc maps\n", nr_maps); 23253d14c5d2SYehuda Sadeh while (nr_maps > 0) { 23263d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 23273d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 23283d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 23293d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 233042c1b124SIlya Dryomov if (osdc->osdmap->epoch && 233142c1b124SIlya Dryomov osdc->osdmap->epoch + 1 == epoch) { 23323d14c5d2SYehuda Sadeh dout("applying incremental map %u len %d\n", 23333d14c5d2SYehuda Sadeh epoch, maplen); 23345aea3dcdSIlya Dryomov err = handle_one_map(osdc, p, p + maplen, true, 23355aea3dcdSIlya Dryomov &need_resend, &need_resend_linger); 233642c1b124SIlya Dryomov if (err) 23373d14c5d2SYehuda Sadeh goto bad; 233842c1b124SIlya Dryomov handled_incremental = true; 23393d14c5d2SYehuda Sadeh } else { 23403d14c5d2SYehuda Sadeh dout("ignoring incremental map %u len %d\n", 23413d14c5d2SYehuda Sadeh epoch, maplen); 23423d14c5d2SYehuda Sadeh } 234342c1b124SIlya Dryomov p += maplen; 23443d14c5d2SYehuda Sadeh nr_maps--; 23453d14c5d2SYehuda Sadeh } 234642c1b124SIlya Dryomov if (handled_incremental) 23473d14c5d2SYehuda Sadeh goto done; 23483d14c5d2SYehuda Sadeh 23493d14c5d2SYehuda Sadeh /* full maps */ 23503d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 23513d14c5d2SYehuda Sadeh dout(" %d full maps\n", nr_maps); 23523d14c5d2SYehuda Sadeh while (nr_maps) { 23533d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 23543d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 23553d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 23563d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 23573d14c5d2SYehuda Sadeh if (nr_maps > 1) { 23583d14c5d2SYehuda Sadeh dout("skipping non-latest full map %u len %d\n", 23593d14c5d2SYehuda Sadeh epoch, maplen); 2360e5253a7bSIlya Dryomov } else if (osdc->osdmap->epoch >= epoch) { 23613d14c5d2SYehuda Sadeh dout("skipping full map %u len %d, " 23623d14c5d2SYehuda Sadeh "older than our %u\n", epoch, maplen, 23633d14c5d2SYehuda Sadeh osdc->osdmap->epoch); 23643d14c5d2SYehuda Sadeh } else { 23653d14c5d2SYehuda Sadeh dout("taking full map %u len %d\n", epoch, maplen); 23665aea3dcdSIlya Dryomov err = handle_one_map(osdc, p, p + maplen, false, 23675aea3dcdSIlya Dryomov &need_resend, &need_resend_linger); 236842c1b124SIlya Dryomov if (err) 23693d14c5d2SYehuda Sadeh goto bad; 23703d14c5d2SYehuda Sadeh } 23713d14c5d2SYehuda Sadeh p += maplen; 23723d14c5d2SYehuda Sadeh nr_maps--; 23733d14c5d2SYehuda Sadeh } 23743d14c5d2SYehuda Sadeh 23753d14c5d2SYehuda Sadeh done: 2376cd634fb6SSage Weil /* 2377cd634fb6SSage Weil * subscribe to subsequent osdmap updates if full to ensure 2378cd634fb6SSage Weil * we find out when we are no longer full and stop returning 2379cd634fb6SSage Weil * ENOSPC. 2380cd634fb6SSage Weil */ 238142c1b124SIlya Dryomov pauserd = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD); 238242c1b124SIlya Dryomov pausewr = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR) || 238342c1b124SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 238442c1b124SIlya Dryomov have_pool_full(osdc); 238542c1b124SIlya Dryomov if (was_pauserd || was_pausewr || pauserd || pausewr) 238642c1b124SIlya Dryomov maybe_request_map(osdc); 2387cd634fb6SSage Weil 23885aea3dcdSIlya Dryomov kick_requests(osdc, &need_resend, &need_resend_linger); 238942c1b124SIlya Dryomov 239042c1b124SIlya Dryomov ceph_monc_got_map(&osdc->client->monc, CEPH_SUB_OSDMAP, 239142c1b124SIlya Dryomov osdc->osdmap->epoch); 23925aea3dcdSIlya Dryomov up_write(&osdc->lock); 23933d14c5d2SYehuda Sadeh wake_up_all(&osdc->client->auth_wq); 23943d14c5d2SYehuda Sadeh return; 23953d14c5d2SYehuda Sadeh 23963d14c5d2SYehuda Sadeh bad: 23973d14c5d2SYehuda Sadeh pr_err("osdc handle_map corrupt msg\n"); 23983d14c5d2SYehuda Sadeh ceph_msg_dump(msg); 23995aea3dcdSIlya Dryomov up_write(&osdc->lock); 24005aea3dcdSIlya Dryomov } 24015aea3dcdSIlya Dryomov 24025aea3dcdSIlya Dryomov /* 24035aea3dcdSIlya Dryomov * Resubmit requests pending on the given osd. 24045aea3dcdSIlya Dryomov */ 24055aea3dcdSIlya Dryomov static void kick_osd_requests(struct ceph_osd *osd) 24065aea3dcdSIlya Dryomov { 24075aea3dcdSIlya Dryomov struct rb_node *n; 24085aea3dcdSIlya Dryomov 24095aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) { 24105aea3dcdSIlya Dryomov struct ceph_osd_request *req = 24115aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 24125aea3dcdSIlya Dryomov 24135aea3dcdSIlya Dryomov if (!req->r_linger) { 24145aea3dcdSIlya Dryomov if (!req->r_t.paused) 24155aea3dcdSIlya Dryomov send_request(req); 24165aea3dcdSIlya Dryomov } 24175aea3dcdSIlya Dryomov } 24185aea3dcdSIlya Dryomov } 24195aea3dcdSIlya Dryomov 24205aea3dcdSIlya Dryomov /* 24215aea3dcdSIlya Dryomov * If the osd connection drops, we need to resubmit all requests. 24225aea3dcdSIlya Dryomov */ 24235aea3dcdSIlya Dryomov static void osd_fault(struct ceph_connection *con) 24245aea3dcdSIlya Dryomov { 24255aea3dcdSIlya Dryomov struct ceph_osd *osd = con->private; 24265aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 24275aea3dcdSIlya Dryomov 24285aea3dcdSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 24295aea3dcdSIlya Dryomov 24305aea3dcdSIlya Dryomov down_write(&osdc->lock); 24315aea3dcdSIlya Dryomov if (!osd_registered(osd)) { 24325aea3dcdSIlya Dryomov dout("%s osd%d unknown\n", __func__, osd->o_osd); 24335aea3dcdSIlya Dryomov goto out_unlock; 24345aea3dcdSIlya Dryomov } 24355aea3dcdSIlya Dryomov 24365aea3dcdSIlya Dryomov if (!reopen_osd(osd)) 24375aea3dcdSIlya Dryomov kick_osd_requests(osd); 24385aea3dcdSIlya Dryomov maybe_request_map(osdc); 24395aea3dcdSIlya Dryomov 24405aea3dcdSIlya Dryomov out_unlock: 24415aea3dcdSIlya Dryomov up_write(&osdc->lock); 24423d14c5d2SYehuda Sadeh } 24433d14c5d2SYehuda Sadeh 24443d14c5d2SYehuda Sadeh /* 2445a40c4f10SYehuda Sadeh * watch/notify callback event infrastructure 2446a40c4f10SYehuda Sadeh * 2447a40c4f10SYehuda Sadeh * These callbacks are used both for watch and notify operations. 2448a40c4f10SYehuda Sadeh */ 2449a40c4f10SYehuda Sadeh static void __release_event(struct kref *kref) 2450a40c4f10SYehuda Sadeh { 2451a40c4f10SYehuda Sadeh struct ceph_osd_event *event = 2452a40c4f10SYehuda Sadeh container_of(kref, struct ceph_osd_event, kref); 2453a40c4f10SYehuda Sadeh 2454a40c4f10SYehuda Sadeh dout("__release_event %p\n", event); 2455a40c4f10SYehuda Sadeh kfree(event); 2456a40c4f10SYehuda Sadeh } 2457a40c4f10SYehuda Sadeh 2458a40c4f10SYehuda Sadeh static void get_event(struct ceph_osd_event *event) 2459a40c4f10SYehuda Sadeh { 2460a40c4f10SYehuda Sadeh kref_get(&event->kref); 2461a40c4f10SYehuda Sadeh } 2462a40c4f10SYehuda Sadeh 2463a40c4f10SYehuda Sadeh void ceph_osdc_put_event(struct ceph_osd_event *event) 2464a40c4f10SYehuda Sadeh { 2465a40c4f10SYehuda Sadeh kref_put(&event->kref, __release_event); 2466a40c4f10SYehuda Sadeh } 2467a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_put_event); 2468a40c4f10SYehuda Sadeh 2469a40c4f10SYehuda Sadeh static void __insert_event(struct ceph_osd_client *osdc, 2470a40c4f10SYehuda Sadeh struct ceph_osd_event *new) 2471a40c4f10SYehuda Sadeh { 2472a40c4f10SYehuda Sadeh struct rb_node **p = &osdc->event_tree.rb_node; 2473a40c4f10SYehuda Sadeh struct rb_node *parent = NULL; 2474a40c4f10SYehuda Sadeh struct ceph_osd_event *event = NULL; 2475a40c4f10SYehuda Sadeh 2476a40c4f10SYehuda Sadeh while (*p) { 2477a40c4f10SYehuda Sadeh parent = *p; 2478a40c4f10SYehuda Sadeh event = rb_entry(parent, struct ceph_osd_event, node); 2479a40c4f10SYehuda Sadeh if (new->cookie < event->cookie) 2480a40c4f10SYehuda Sadeh p = &(*p)->rb_left; 2481a40c4f10SYehuda Sadeh else if (new->cookie > event->cookie) 2482a40c4f10SYehuda Sadeh p = &(*p)->rb_right; 2483a40c4f10SYehuda Sadeh else 2484a40c4f10SYehuda Sadeh BUG(); 2485a40c4f10SYehuda Sadeh } 2486a40c4f10SYehuda Sadeh 2487a40c4f10SYehuda Sadeh rb_link_node(&new->node, parent, p); 2488a40c4f10SYehuda Sadeh rb_insert_color(&new->node, &osdc->event_tree); 2489a40c4f10SYehuda Sadeh } 2490a40c4f10SYehuda Sadeh 2491a40c4f10SYehuda Sadeh static struct ceph_osd_event *__find_event(struct ceph_osd_client *osdc, 2492a40c4f10SYehuda Sadeh u64 cookie) 2493a40c4f10SYehuda Sadeh { 2494a40c4f10SYehuda Sadeh struct rb_node **p = &osdc->event_tree.rb_node; 2495a40c4f10SYehuda Sadeh struct rb_node *parent = NULL; 2496a40c4f10SYehuda Sadeh struct ceph_osd_event *event = NULL; 2497a40c4f10SYehuda Sadeh 2498a40c4f10SYehuda Sadeh while (*p) { 2499a40c4f10SYehuda Sadeh parent = *p; 2500a40c4f10SYehuda Sadeh event = rb_entry(parent, struct ceph_osd_event, node); 2501a40c4f10SYehuda Sadeh if (cookie < event->cookie) 2502a40c4f10SYehuda Sadeh p = &(*p)->rb_left; 2503a40c4f10SYehuda Sadeh else if (cookie > event->cookie) 2504a40c4f10SYehuda Sadeh p = &(*p)->rb_right; 2505a40c4f10SYehuda Sadeh else 2506a40c4f10SYehuda Sadeh return event; 2507a40c4f10SYehuda Sadeh } 2508a40c4f10SYehuda Sadeh return NULL; 2509a40c4f10SYehuda Sadeh } 2510a40c4f10SYehuda Sadeh 2511a40c4f10SYehuda Sadeh static void __remove_event(struct ceph_osd_event *event) 2512a40c4f10SYehuda Sadeh { 2513a40c4f10SYehuda Sadeh struct ceph_osd_client *osdc = event->osdc; 2514a40c4f10SYehuda Sadeh 2515a40c4f10SYehuda Sadeh if (!RB_EMPTY_NODE(&event->node)) { 2516a40c4f10SYehuda Sadeh dout("__remove_event removed %p\n", event); 2517a40c4f10SYehuda Sadeh rb_erase(&event->node, &osdc->event_tree); 2518a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 2519a40c4f10SYehuda Sadeh } else { 2520a40c4f10SYehuda Sadeh dout("__remove_event didn't remove %p\n", event); 2521a40c4f10SYehuda Sadeh } 2522a40c4f10SYehuda Sadeh } 2523a40c4f10SYehuda Sadeh 2524a40c4f10SYehuda Sadeh int ceph_osdc_create_event(struct ceph_osd_client *osdc, 2525a40c4f10SYehuda Sadeh void (*event_cb)(u64, u64, u8, void *), 25263c663bbdSAlex Elder void *data, struct ceph_osd_event **pevent) 2527a40c4f10SYehuda Sadeh { 2528a40c4f10SYehuda Sadeh struct ceph_osd_event *event; 2529a40c4f10SYehuda Sadeh 2530a40c4f10SYehuda Sadeh event = kmalloc(sizeof(*event), GFP_NOIO); 2531a40c4f10SYehuda Sadeh if (!event) 2532a40c4f10SYehuda Sadeh return -ENOMEM; 2533a40c4f10SYehuda Sadeh 2534a40c4f10SYehuda Sadeh dout("create_event %p\n", event); 2535a40c4f10SYehuda Sadeh event->cb = event_cb; 25363c663bbdSAlex Elder event->one_shot = 0; 2537a40c4f10SYehuda Sadeh event->data = data; 2538a40c4f10SYehuda Sadeh event->osdc = osdc; 2539a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&event->osd_node); 25403ee5234dSAlex Elder RB_CLEAR_NODE(&event->node); 2541a40c4f10SYehuda Sadeh kref_init(&event->kref); /* one ref for us */ 2542a40c4f10SYehuda Sadeh kref_get(&event->kref); /* one ref for the caller */ 2543a40c4f10SYehuda Sadeh 2544a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 2545a40c4f10SYehuda Sadeh event->cookie = ++osdc->event_count; 2546a40c4f10SYehuda Sadeh __insert_event(osdc, event); 2547a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 2548a40c4f10SYehuda Sadeh 2549a40c4f10SYehuda Sadeh *pevent = event; 2550a40c4f10SYehuda Sadeh return 0; 2551a40c4f10SYehuda Sadeh } 2552a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_create_event); 2553a40c4f10SYehuda Sadeh 2554a40c4f10SYehuda Sadeh void ceph_osdc_cancel_event(struct ceph_osd_event *event) 2555a40c4f10SYehuda Sadeh { 2556a40c4f10SYehuda Sadeh struct ceph_osd_client *osdc = event->osdc; 2557a40c4f10SYehuda Sadeh 2558a40c4f10SYehuda Sadeh dout("cancel_event %p\n", event); 2559a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 2560a40c4f10SYehuda Sadeh __remove_event(event); 2561a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 2562a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); /* caller's */ 2563a40c4f10SYehuda Sadeh } 2564a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_cancel_event); 2565a40c4f10SYehuda Sadeh 2566a40c4f10SYehuda Sadeh 2567a40c4f10SYehuda Sadeh static void do_event_work(struct work_struct *work) 2568a40c4f10SYehuda Sadeh { 2569a40c4f10SYehuda Sadeh struct ceph_osd_event_work *event_work = 2570a40c4f10SYehuda Sadeh container_of(work, struct ceph_osd_event_work, work); 2571a40c4f10SYehuda Sadeh struct ceph_osd_event *event = event_work->event; 2572a40c4f10SYehuda Sadeh u64 ver = event_work->ver; 2573a40c4f10SYehuda Sadeh u64 notify_id = event_work->notify_id; 2574a40c4f10SYehuda Sadeh u8 opcode = event_work->opcode; 2575a40c4f10SYehuda Sadeh 2576a40c4f10SYehuda Sadeh dout("do_event_work completing %p\n", event); 2577a40c4f10SYehuda Sadeh event->cb(ver, notify_id, opcode, event->data); 2578a40c4f10SYehuda Sadeh dout("do_event_work completed %p\n", event); 2579a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 2580a40c4f10SYehuda Sadeh kfree(event_work); 2581a40c4f10SYehuda Sadeh } 2582a40c4f10SYehuda Sadeh 2583a40c4f10SYehuda Sadeh 2584a40c4f10SYehuda Sadeh /* 2585a40c4f10SYehuda Sadeh * Process osd watch notifications 2586a40c4f10SYehuda Sadeh */ 25873c663bbdSAlex Elder static void handle_watch_notify(struct ceph_osd_client *osdc, 25883c663bbdSAlex Elder struct ceph_msg *msg) 2589a40c4f10SYehuda Sadeh { 2590a40c4f10SYehuda Sadeh void *p, *end; 2591a40c4f10SYehuda Sadeh u8 proto_ver; 2592a40c4f10SYehuda Sadeh u64 cookie, ver, notify_id; 2593a40c4f10SYehuda Sadeh u8 opcode; 2594a40c4f10SYehuda Sadeh struct ceph_osd_event *event; 2595a40c4f10SYehuda Sadeh struct ceph_osd_event_work *event_work; 2596a40c4f10SYehuda Sadeh 2597a40c4f10SYehuda Sadeh p = msg->front.iov_base; 2598a40c4f10SYehuda Sadeh end = p + msg->front.iov_len; 2599a40c4f10SYehuda Sadeh 2600a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, proto_ver, bad); 2601a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, opcode, bad); 2602a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, cookie, bad); 2603a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, ver, bad); 2604a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, notify_id, bad); 2605a40c4f10SYehuda Sadeh 2606a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 2607a40c4f10SYehuda Sadeh event = __find_event(osdc, cookie); 2608a40c4f10SYehuda Sadeh if (event) { 26093c663bbdSAlex Elder BUG_ON(event->one_shot); 2610a40c4f10SYehuda Sadeh get_event(event); 2611a40c4f10SYehuda Sadeh } 2612a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 2613a40c4f10SYehuda Sadeh dout("handle_watch_notify cookie %lld ver %lld event %p\n", 2614a40c4f10SYehuda Sadeh cookie, ver, event); 2615a40c4f10SYehuda Sadeh if (event) { 2616a40c4f10SYehuda Sadeh event_work = kmalloc(sizeof(*event_work), GFP_NOIO); 2617a40c4f10SYehuda Sadeh if (!event_work) { 261891883cd2SIlya Dryomov pr_err("couldn't allocate event_work\n"); 261991883cd2SIlya Dryomov ceph_osdc_put_event(event); 262091883cd2SIlya Dryomov return; 2621a40c4f10SYehuda Sadeh } 26226b0ae409SMariusz Kozlowski INIT_WORK(&event_work->work, do_event_work); 2623a40c4f10SYehuda Sadeh event_work->event = event; 2624a40c4f10SYehuda Sadeh event_work->ver = ver; 2625a40c4f10SYehuda Sadeh event_work->notify_id = notify_id; 2626a40c4f10SYehuda Sadeh event_work->opcode = opcode; 262791883cd2SIlya Dryomov 262891883cd2SIlya Dryomov queue_work(osdc->notify_wq, &event_work->work); 2629a40c4f10SYehuda Sadeh } 2630a40c4f10SYehuda Sadeh 2631a40c4f10SYehuda Sadeh return; 2632a40c4f10SYehuda Sadeh 2633a40c4f10SYehuda Sadeh bad: 2634a40c4f10SYehuda Sadeh pr_err("osdc handle_watch_notify corrupt msg\n"); 2635a40c4f10SYehuda Sadeh } 2636a40c4f10SYehuda Sadeh 2637a40c4f10SYehuda Sadeh /* 26383d14c5d2SYehuda Sadeh * Register request, send initial attempt. 26393d14c5d2SYehuda Sadeh */ 26403d14c5d2SYehuda Sadeh int ceph_osdc_start_request(struct ceph_osd_client *osdc, 26413d14c5d2SYehuda Sadeh struct ceph_osd_request *req, 26423d14c5d2SYehuda Sadeh bool nofail) 26433d14c5d2SYehuda Sadeh { 26445aea3dcdSIlya Dryomov down_read(&osdc->lock); 26455aea3dcdSIlya Dryomov submit_request(req, false); 26465aea3dcdSIlya Dryomov up_read(&osdc->lock); 26473d14c5d2SYehuda Sadeh 26485aea3dcdSIlya Dryomov return 0; 26493d14c5d2SYehuda Sadeh } 26503d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_start_request); 26513d14c5d2SYehuda Sadeh 26523d14c5d2SYehuda Sadeh /* 2653c9f9b93dSIlya Dryomov * Unregister a registered request. The request is not completed (i.e. 2654c9f9b93dSIlya Dryomov * no callbacks or wakeups) - higher layers are supposed to know what 2655c9f9b93dSIlya Dryomov * they are canceling. 2656c9f9b93dSIlya Dryomov */ 2657c9f9b93dSIlya Dryomov void ceph_osdc_cancel_request(struct ceph_osd_request *req) 2658c9f9b93dSIlya Dryomov { 2659c9f9b93dSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 2660c9f9b93dSIlya Dryomov 26615aea3dcdSIlya Dryomov down_write(&osdc->lock); 2662c9f9b93dSIlya Dryomov if (req->r_linger) 2663c9f9b93dSIlya Dryomov __unregister_linger_request(osdc, req); 26645aea3dcdSIlya Dryomov if (req->r_osd) 26655aea3dcdSIlya Dryomov cancel_request(req); 26665aea3dcdSIlya Dryomov up_write(&osdc->lock); 2667c9f9b93dSIlya Dryomov } 2668c9f9b93dSIlya Dryomov EXPORT_SYMBOL(ceph_osdc_cancel_request); 2669c9f9b93dSIlya Dryomov 2670c9f9b93dSIlya Dryomov /* 267142b06965SIlya Dryomov * @timeout: in jiffies, 0 means "wait forever" 267242b06965SIlya Dryomov */ 267342b06965SIlya Dryomov static int wait_request_timeout(struct ceph_osd_request *req, 267442b06965SIlya Dryomov unsigned long timeout) 267542b06965SIlya Dryomov { 267642b06965SIlya Dryomov long left; 267742b06965SIlya Dryomov 267842b06965SIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 267942b06965SIlya Dryomov left = wait_for_completion_interruptible_timeout(&req->r_completion, 268042b06965SIlya Dryomov ceph_timeout_jiffies(timeout)); 268142b06965SIlya Dryomov if (left <= 0) { 268242b06965SIlya Dryomov left = left ?: -ETIMEDOUT; 268342b06965SIlya Dryomov ceph_osdc_cancel_request(req); 268442b06965SIlya Dryomov 268542b06965SIlya Dryomov /* kludge - need to to wake ceph_osdc_sync() */ 268642b06965SIlya Dryomov complete_all(&req->r_safe_completion); 268742b06965SIlya Dryomov } else { 268842b06965SIlya Dryomov left = req->r_result; /* completed */ 268942b06965SIlya Dryomov } 269042b06965SIlya Dryomov 269142b06965SIlya Dryomov return left; 269242b06965SIlya Dryomov } 269342b06965SIlya Dryomov 269442b06965SIlya Dryomov /* 26953d14c5d2SYehuda Sadeh * wait for a request to complete 26963d14c5d2SYehuda Sadeh */ 26973d14c5d2SYehuda Sadeh int ceph_osdc_wait_request(struct ceph_osd_client *osdc, 26983d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 26993d14c5d2SYehuda Sadeh { 270042b06965SIlya Dryomov return wait_request_timeout(req, 0); 27013d14c5d2SYehuda Sadeh } 27023d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_wait_request); 27033d14c5d2SYehuda Sadeh 27043d14c5d2SYehuda Sadeh /* 27053d14c5d2SYehuda Sadeh * sync - wait for all in-flight requests to flush. avoid starvation. 27063d14c5d2SYehuda Sadeh */ 27073d14c5d2SYehuda Sadeh void ceph_osdc_sync(struct ceph_osd_client *osdc) 27083d14c5d2SYehuda Sadeh { 27095aea3dcdSIlya Dryomov struct rb_node *n, *p; 27105aea3dcdSIlya Dryomov u64 last_tid = atomic64_read(&osdc->last_tid); 27113d14c5d2SYehuda Sadeh 27125aea3dcdSIlya Dryomov again: 27135aea3dcdSIlya Dryomov down_read(&osdc->lock); 27145aea3dcdSIlya Dryomov for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { 27155aea3dcdSIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 27165aea3dcdSIlya Dryomov 27175aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 27185aea3dcdSIlya Dryomov for (p = rb_first(&osd->o_requests); p; p = rb_next(p)) { 27195aea3dcdSIlya Dryomov struct ceph_osd_request *req = 27205aea3dcdSIlya Dryomov rb_entry(p, struct ceph_osd_request, r_node); 27215aea3dcdSIlya Dryomov 27223d14c5d2SYehuda Sadeh if (req->r_tid > last_tid) 27233d14c5d2SYehuda Sadeh break; 27243d14c5d2SYehuda Sadeh 27255aea3dcdSIlya Dryomov if (!(req->r_flags & CEPH_OSD_FLAG_WRITE)) 27263d14c5d2SYehuda Sadeh continue; 27273d14c5d2SYehuda Sadeh 27283d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 27295aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 27305aea3dcdSIlya Dryomov up_read(&osdc->lock); 27315aea3dcdSIlya Dryomov dout("%s waiting on req %p tid %llu last_tid %llu\n", 27325aea3dcdSIlya Dryomov __func__, req, req->r_tid, last_tid); 27333d14c5d2SYehuda Sadeh wait_for_completion(&req->r_safe_completion); 27343d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 27355aea3dcdSIlya Dryomov goto again; 27363d14c5d2SYehuda Sadeh } 27375aea3dcdSIlya Dryomov 27385aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 27395aea3dcdSIlya Dryomov } 27405aea3dcdSIlya Dryomov 27415aea3dcdSIlya Dryomov up_read(&osdc->lock); 27425aea3dcdSIlya Dryomov dout("%s done last_tid %llu\n", __func__, last_tid); 27433d14c5d2SYehuda Sadeh } 27443d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_sync); 27453d14c5d2SYehuda Sadeh 27463d14c5d2SYehuda Sadeh /* 2747dd935f44SJosh Durgin * Call all pending notify callbacks - for use after a watch is 2748dd935f44SJosh Durgin * unregistered, to make sure no more callbacks for it will be invoked 2749dd935f44SJosh Durgin */ 2750f6479449Sstephen hemminger void ceph_osdc_flush_notifies(struct ceph_osd_client *osdc) 2751dd935f44SJosh Durgin { 2752dd935f44SJosh Durgin flush_workqueue(osdc->notify_wq); 2753dd935f44SJosh Durgin } 2754dd935f44SJosh Durgin EXPORT_SYMBOL(ceph_osdc_flush_notifies); 2755dd935f44SJosh Durgin 2756dd935f44SJosh Durgin 2757dd935f44SJosh Durgin /* 27583d14c5d2SYehuda Sadeh * init, shutdown 27593d14c5d2SYehuda Sadeh */ 27603d14c5d2SYehuda Sadeh int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) 27613d14c5d2SYehuda Sadeh { 27623d14c5d2SYehuda Sadeh int err; 27633d14c5d2SYehuda Sadeh 27643d14c5d2SYehuda Sadeh dout("init\n"); 27653d14c5d2SYehuda Sadeh osdc->client = client; 27665aea3dcdSIlya Dryomov init_rwsem(&osdc->lock); 27673d14c5d2SYehuda Sadeh osdc->osds = RB_ROOT; 27683d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osdc->osd_lru); 27699dd2845cSIlya Dryomov spin_lock_init(&osdc->osd_lru_lock); 2770a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&osdc->req_linger); 27715aea3dcdSIlya Dryomov osd_init(&osdc->homeless_osd); 27725aea3dcdSIlya Dryomov osdc->homeless_osd.o_osdc = osdc; 27735aea3dcdSIlya Dryomov osdc->homeless_osd.o_osd = CEPH_HOMELESS_OSD; 27743d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->timeout_work, handle_timeout); 27753d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->osds_timeout_work, handle_osds_timeout); 2776a40c4f10SYehuda Sadeh spin_lock_init(&osdc->event_lock); 2777a40c4f10SYehuda Sadeh osdc->event_tree = RB_ROOT; 2778a40c4f10SYehuda Sadeh osdc->event_count = 0; 27793d14c5d2SYehuda Sadeh 27803d14c5d2SYehuda Sadeh err = -ENOMEM; 2781e5253a7bSIlya Dryomov osdc->osdmap = ceph_osdmap_alloc(); 2782e5253a7bSIlya Dryomov if (!osdc->osdmap) 2783e5253a7bSIlya Dryomov goto out; 2784e5253a7bSIlya Dryomov 27859e767adbSIlya Dryomov osdc->req_mempool = mempool_create_slab_pool(10, 27869e767adbSIlya Dryomov ceph_osd_request_cache); 27873d14c5d2SYehuda Sadeh if (!osdc->req_mempool) 2788e5253a7bSIlya Dryomov goto out_map; 27893d14c5d2SYehuda Sadeh 2790d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op, CEPH_MSG_OSD_OP, 2791711da55dSIlya Dryomov PAGE_SIZE, 10, true, "osd_op"); 27923d14c5d2SYehuda Sadeh if (err < 0) 27933d14c5d2SYehuda Sadeh goto out_mempool; 2794d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op_reply, CEPH_MSG_OSD_OPREPLY, 2795711da55dSIlya Dryomov PAGE_SIZE, 10, true, "osd_op_reply"); 27963d14c5d2SYehuda Sadeh if (err < 0) 27973d14c5d2SYehuda Sadeh goto out_msgpool; 2798a40c4f10SYehuda Sadeh 2799dbcae088SDan Carpenter err = -ENOMEM; 2800a40c4f10SYehuda Sadeh osdc->notify_wq = create_singlethread_workqueue("ceph-watch-notify"); 2801dbcae088SDan Carpenter if (!osdc->notify_wq) 2802c172ec5cSIlya Dryomov goto out_msgpool_reply; 2803c172ec5cSIlya Dryomov 2804fbca9635SIlya Dryomov schedule_delayed_work(&osdc->timeout_work, 2805fbca9635SIlya Dryomov osdc->client->options->osd_keepalive_timeout); 2806b37ee1b9SIlya Dryomov schedule_delayed_work(&osdc->osds_timeout_work, 2807b37ee1b9SIlya Dryomov round_jiffies_relative(osdc->client->options->osd_idle_ttl)); 2808b37ee1b9SIlya Dryomov 28093d14c5d2SYehuda Sadeh return 0; 28103d14c5d2SYehuda Sadeh 2811c172ec5cSIlya Dryomov out_msgpool_reply: 2812c172ec5cSIlya Dryomov ceph_msgpool_destroy(&osdc->msgpool_op_reply); 28133d14c5d2SYehuda Sadeh out_msgpool: 28143d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 28153d14c5d2SYehuda Sadeh out_mempool: 28163d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 2817e5253a7bSIlya Dryomov out_map: 2818e5253a7bSIlya Dryomov ceph_osdmap_destroy(osdc->osdmap); 28193d14c5d2SYehuda Sadeh out: 28203d14c5d2SYehuda Sadeh return err; 28213d14c5d2SYehuda Sadeh } 28223d14c5d2SYehuda Sadeh 28233d14c5d2SYehuda Sadeh void ceph_osdc_stop(struct ceph_osd_client *osdc) 28243d14c5d2SYehuda Sadeh { 2825a40c4f10SYehuda Sadeh flush_workqueue(osdc->notify_wq); 2826a40c4f10SYehuda Sadeh destroy_workqueue(osdc->notify_wq); 28273d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->timeout_work); 28283d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->osds_timeout_work); 282942a2c09fSIlya Dryomov 28305aea3dcdSIlya Dryomov down_write(&osdc->lock); 283142a2c09fSIlya Dryomov while (!RB_EMPTY_ROOT(&osdc->osds)) { 283242a2c09fSIlya Dryomov struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds), 283342a2c09fSIlya Dryomov struct ceph_osd, o_node); 28345aea3dcdSIlya Dryomov close_osd(osd); 283542a2c09fSIlya Dryomov } 28365aea3dcdSIlya Dryomov up_write(&osdc->lock); 28375aea3dcdSIlya Dryomov WARN_ON(atomic_read(&osdc->homeless_osd.o_ref) != 1); 28385aea3dcdSIlya Dryomov osd_cleanup(&osdc->homeless_osd); 28395aea3dcdSIlya Dryomov 28405aea3dcdSIlya Dryomov WARN_ON(!list_empty(&osdc->osd_lru)); 28415aea3dcdSIlya Dryomov WARN_ON(atomic_read(&osdc->num_requests)); 28425aea3dcdSIlya Dryomov WARN_ON(atomic_read(&osdc->num_homeless)); 284342a2c09fSIlya Dryomov 28443d14c5d2SYehuda Sadeh ceph_osdmap_destroy(osdc->osdmap); 28453d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 28463d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 28473d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op_reply); 28483d14c5d2SYehuda Sadeh } 28493d14c5d2SYehuda Sadeh 28503d14c5d2SYehuda Sadeh /* 28513d14c5d2SYehuda Sadeh * Read some contiguous pages. If we cross a stripe boundary, shorten 28523d14c5d2SYehuda Sadeh * *plen. Return number of bytes read, or error. 28533d14c5d2SYehuda Sadeh */ 28543d14c5d2SYehuda Sadeh int ceph_osdc_readpages(struct ceph_osd_client *osdc, 28553d14c5d2SYehuda Sadeh struct ceph_vino vino, struct ceph_file_layout *layout, 28563d14c5d2SYehuda Sadeh u64 off, u64 *plen, 28573d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 2858b7495fc2SSage Weil struct page **pages, int num_pages, int page_align) 28593d14c5d2SYehuda Sadeh { 28603d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 28613d14c5d2SYehuda Sadeh int rc = 0; 28623d14c5d2SYehuda Sadeh 28633d14c5d2SYehuda Sadeh dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino, 28643d14c5d2SYehuda Sadeh vino.snap, off, *plen); 2865715e4cd4SYan, Zheng req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 0, 1, 28663d14c5d2SYehuda Sadeh CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, 2867acead002SAlex Elder NULL, truncate_seq, truncate_size, 2868153e5167SAlex Elder false); 28696816282dSSage Weil if (IS_ERR(req)) 28706816282dSSage Weil return PTR_ERR(req); 28713d14c5d2SYehuda Sadeh 28723d14c5d2SYehuda Sadeh /* it may be a short read due to an object boundary */ 2873406e2c9fSAlex Elder osd_req_op_extent_osd_data_pages(req, 0, 2874a4ce40a9SAlex Elder pages, *plen, page_align, false, false); 28753d14c5d2SYehuda Sadeh 2876e0c59487SAlex Elder dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n", 287743bfe5deSAlex Elder off, *plen, *plen, page_align); 28783d14c5d2SYehuda Sadeh 28793d14c5d2SYehuda Sadeh rc = ceph_osdc_start_request(osdc, req, false); 28803d14c5d2SYehuda Sadeh if (!rc) 28813d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 28823d14c5d2SYehuda Sadeh 28833d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 28843d14c5d2SYehuda Sadeh dout("readpages result %d\n", rc); 28853d14c5d2SYehuda Sadeh return rc; 28863d14c5d2SYehuda Sadeh } 28873d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_readpages); 28883d14c5d2SYehuda Sadeh 28893d14c5d2SYehuda Sadeh /* 28903d14c5d2SYehuda Sadeh * do a synchronous write on N pages 28913d14c5d2SYehuda Sadeh */ 28923d14c5d2SYehuda Sadeh int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, 28933d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 28943d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 28953d14c5d2SYehuda Sadeh u64 off, u64 len, 28963d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 28973d14c5d2SYehuda Sadeh struct timespec *mtime, 289824808826SAlex Elder struct page **pages, int num_pages) 28993d14c5d2SYehuda Sadeh { 29003d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 29013d14c5d2SYehuda Sadeh int rc = 0; 2902b7495fc2SSage Weil int page_align = off & ~PAGE_MASK; 29033d14c5d2SYehuda Sadeh 2904715e4cd4SYan, Zheng req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 0, 1, 29053d14c5d2SYehuda Sadeh CEPH_OSD_OP_WRITE, 290624808826SAlex Elder CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE, 2907acead002SAlex Elder snapc, truncate_seq, truncate_size, 2908153e5167SAlex Elder true); 29096816282dSSage Weil if (IS_ERR(req)) 29106816282dSSage Weil return PTR_ERR(req); 29113d14c5d2SYehuda Sadeh 29123d14c5d2SYehuda Sadeh /* it may be a short write due to an object boundary */ 2913406e2c9fSAlex Elder osd_req_op_extent_osd_data_pages(req, 0, pages, len, page_align, 291443bfe5deSAlex Elder false, false); 291543bfe5deSAlex Elder dout("writepages %llu~%llu (%llu bytes)\n", off, len, len); 29163d14c5d2SYehuda Sadeh 2917bb873b53SIlya Dryomov req->r_mtime = *mtime; 291887f979d3SAlex Elder rc = ceph_osdc_start_request(osdc, req, true); 29193d14c5d2SYehuda Sadeh if (!rc) 29203d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 29213d14c5d2SYehuda Sadeh 29223d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 29233d14c5d2SYehuda Sadeh if (rc == 0) 29243d14c5d2SYehuda Sadeh rc = len; 29253d14c5d2SYehuda Sadeh dout("writepages result %d\n", rc); 29263d14c5d2SYehuda Sadeh return rc; 29273d14c5d2SYehuda Sadeh } 29283d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_writepages); 29293d14c5d2SYehuda Sadeh 29305522ae0bSAlex Elder int ceph_osdc_setup(void) 29315522ae0bSAlex Elder { 29323f1af42aSIlya Dryomov size_t size = sizeof(struct ceph_osd_request) + 29333f1af42aSIlya Dryomov CEPH_OSD_SLAB_OPS * sizeof(struct ceph_osd_req_op); 29343f1af42aSIlya Dryomov 29355522ae0bSAlex Elder BUG_ON(ceph_osd_request_cache); 29363f1af42aSIlya Dryomov ceph_osd_request_cache = kmem_cache_create("ceph_osd_request", size, 29373f1af42aSIlya Dryomov 0, 0, NULL); 29385522ae0bSAlex Elder 29395522ae0bSAlex Elder return ceph_osd_request_cache ? 0 : -ENOMEM; 29405522ae0bSAlex Elder } 29415522ae0bSAlex Elder EXPORT_SYMBOL(ceph_osdc_setup); 29425522ae0bSAlex Elder 29435522ae0bSAlex Elder void ceph_osdc_cleanup(void) 29445522ae0bSAlex Elder { 29455522ae0bSAlex Elder BUG_ON(!ceph_osd_request_cache); 29465522ae0bSAlex Elder kmem_cache_destroy(ceph_osd_request_cache); 29475522ae0bSAlex Elder ceph_osd_request_cache = NULL; 29485522ae0bSAlex Elder } 29495522ae0bSAlex Elder EXPORT_SYMBOL(ceph_osdc_cleanup); 29505522ae0bSAlex Elder 29513d14c5d2SYehuda Sadeh /* 29523d14c5d2SYehuda Sadeh * handle incoming message 29533d14c5d2SYehuda Sadeh */ 29543d14c5d2SYehuda Sadeh static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) 29553d14c5d2SYehuda Sadeh { 29563d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 29575aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 29583d14c5d2SYehuda Sadeh int type = le16_to_cpu(msg->hdr.type); 29593d14c5d2SYehuda Sadeh 29603d14c5d2SYehuda Sadeh switch (type) { 29613d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 29623d14c5d2SYehuda Sadeh ceph_osdc_handle_map(osdc, msg); 29633d14c5d2SYehuda Sadeh break; 29643d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 29655aea3dcdSIlya Dryomov handle_reply(osd, msg); 29663d14c5d2SYehuda Sadeh break; 2967a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 2968a40c4f10SYehuda Sadeh handle_watch_notify(osdc, msg); 2969a40c4f10SYehuda Sadeh break; 29703d14c5d2SYehuda Sadeh 29713d14c5d2SYehuda Sadeh default: 29723d14c5d2SYehuda Sadeh pr_err("received unknown message type %d %s\n", type, 29733d14c5d2SYehuda Sadeh ceph_msg_type_name(type)); 29743d14c5d2SYehuda Sadeh } 29755aea3dcdSIlya Dryomov 29763d14c5d2SYehuda Sadeh ceph_msg_put(msg); 29773d14c5d2SYehuda Sadeh } 29783d14c5d2SYehuda Sadeh 29793d14c5d2SYehuda Sadeh /* 2980d15f9d69SIlya Dryomov * Lookup and return message for incoming reply. Don't try to do 2981d15f9d69SIlya Dryomov * anything about a larger than preallocated data portion of the 2982d15f9d69SIlya Dryomov * message at the moment - for now, just skip the message. 29833d14c5d2SYehuda Sadeh */ 29843d14c5d2SYehuda Sadeh static struct ceph_msg *get_reply(struct ceph_connection *con, 29853d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 29863d14c5d2SYehuda Sadeh int *skip) 29873d14c5d2SYehuda Sadeh { 29883d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 29893d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = osd->o_osdc; 29905aea3dcdSIlya Dryomov struct ceph_msg *m = NULL; 29913d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 29923f0a4ac5SIlya Dryomov int front_len = le32_to_cpu(hdr->front_len); 29933d14c5d2SYehuda Sadeh int data_len = le32_to_cpu(hdr->data_len); 29945aea3dcdSIlya Dryomov u64 tid = le64_to_cpu(hdr->tid); 29953d14c5d2SYehuda Sadeh 29965aea3dcdSIlya Dryomov down_read(&osdc->lock); 29975aea3dcdSIlya Dryomov if (!osd_registered(osd)) { 29985aea3dcdSIlya Dryomov dout("%s osd%d unknown, skipping\n", __func__, osd->o_osd); 29995aea3dcdSIlya Dryomov *skip = 1; 30005aea3dcdSIlya Dryomov goto out_unlock_osdc; 30015aea3dcdSIlya Dryomov } 30025aea3dcdSIlya Dryomov WARN_ON(osd->o_osd != le64_to_cpu(hdr->src.num)); 30035aea3dcdSIlya Dryomov 30045aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 30055aea3dcdSIlya Dryomov req = lookup_request(&osd->o_requests, tid); 30063d14c5d2SYehuda Sadeh if (!req) { 3007cd8140c6SIlya Dryomov dout("%s osd%d tid %llu unknown, skipping\n", __func__, 3008cd8140c6SIlya Dryomov osd->o_osd, tid); 3009d15f9d69SIlya Dryomov *skip = 1; 30105aea3dcdSIlya Dryomov goto out_unlock_session; 30113d14c5d2SYehuda Sadeh } 30123d14c5d2SYehuda Sadeh 30138921d114SAlex Elder ceph_msg_revoke_incoming(req->r_reply); 30143d14c5d2SYehuda Sadeh 3015f2be82b0SIlya Dryomov if (front_len > req->r_reply->front_alloc_len) { 3016d15f9d69SIlya Dryomov pr_warn("%s osd%d tid %llu front %d > preallocated %d\n", 3017d15f9d69SIlya Dryomov __func__, osd->o_osd, req->r_tid, front_len, 3018d15f9d69SIlya Dryomov req->r_reply->front_alloc_len); 30193f0a4ac5SIlya Dryomov m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front_len, GFP_NOFS, 30203f0a4ac5SIlya Dryomov false); 30213d14c5d2SYehuda Sadeh if (!m) 30225aea3dcdSIlya Dryomov goto out_unlock_session; 30233d14c5d2SYehuda Sadeh ceph_msg_put(req->r_reply); 30243d14c5d2SYehuda Sadeh req->r_reply = m; 30253d14c5d2SYehuda Sadeh } 30263d14c5d2SYehuda Sadeh 3027d15f9d69SIlya Dryomov if (data_len > req->r_reply->data_length) { 3028d15f9d69SIlya Dryomov pr_warn("%s osd%d tid %llu data %d > preallocated %zu, skipping\n", 3029d15f9d69SIlya Dryomov __func__, osd->o_osd, req->r_tid, data_len, 3030d15f9d69SIlya Dryomov req->r_reply->data_length); 30313d14c5d2SYehuda Sadeh m = NULL; 3032d15f9d69SIlya Dryomov *skip = 1; 30335aea3dcdSIlya Dryomov goto out_unlock_session; 30343d14c5d2SYehuda Sadeh } 3035d15f9d69SIlya Dryomov 3036d15f9d69SIlya Dryomov m = ceph_msg_get(req->r_reply); 30373d14c5d2SYehuda Sadeh dout("get_reply tid %lld %p\n", tid, m); 30383d14c5d2SYehuda Sadeh 30395aea3dcdSIlya Dryomov out_unlock_session: 30405aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 30415aea3dcdSIlya Dryomov out_unlock_osdc: 30425aea3dcdSIlya Dryomov up_read(&osdc->lock); 30433d14c5d2SYehuda Sadeh return m; 30443d14c5d2SYehuda Sadeh } 30453d14c5d2SYehuda Sadeh 30463d14c5d2SYehuda Sadeh static struct ceph_msg *alloc_msg(struct ceph_connection *con, 30473d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 30483d14c5d2SYehuda Sadeh int *skip) 30493d14c5d2SYehuda Sadeh { 30503d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 30513d14c5d2SYehuda Sadeh int type = le16_to_cpu(hdr->type); 30523d14c5d2SYehuda Sadeh int front = le32_to_cpu(hdr->front_len); 30533d14c5d2SYehuda Sadeh 30541c20f2d2SAlex Elder *skip = 0; 30553d14c5d2SYehuda Sadeh switch (type) { 30563d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 3057a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 3058b61c2763SSage Weil return ceph_msg_new(type, front, GFP_NOFS, false); 30593d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 30603d14c5d2SYehuda Sadeh return get_reply(con, hdr, skip); 30613d14c5d2SYehuda Sadeh default: 30625aea3dcdSIlya Dryomov pr_warn("%s osd%d unknown msg type %d, skipping\n", __func__, 30635aea3dcdSIlya Dryomov osd->o_osd, type); 30643d14c5d2SYehuda Sadeh *skip = 1; 30653d14c5d2SYehuda Sadeh return NULL; 30663d14c5d2SYehuda Sadeh } 30673d14c5d2SYehuda Sadeh } 30683d14c5d2SYehuda Sadeh 30693d14c5d2SYehuda Sadeh /* 30703d14c5d2SYehuda Sadeh * Wrappers to refcount containing ceph_osd struct 30713d14c5d2SYehuda Sadeh */ 30723d14c5d2SYehuda Sadeh static struct ceph_connection *get_osd_con(struct ceph_connection *con) 30733d14c5d2SYehuda Sadeh { 30743d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 30753d14c5d2SYehuda Sadeh if (get_osd(osd)) 30763d14c5d2SYehuda Sadeh return con; 30773d14c5d2SYehuda Sadeh return NULL; 30783d14c5d2SYehuda Sadeh } 30793d14c5d2SYehuda Sadeh 30803d14c5d2SYehuda Sadeh static void put_osd_con(struct ceph_connection *con) 30813d14c5d2SYehuda Sadeh { 30823d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 30833d14c5d2SYehuda Sadeh put_osd(osd); 30843d14c5d2SYehuda Sadeh } 30853d14c5d2SYehuda Sadeh 30863d14c5d2SYehuda Sadeh /* 30873d14c5d2SYehuda Sadeh * authentication 30883d14c5d2SYehuda Sadeh */ 3089a3530df3SAlex Elder /* 3090a3530df3SAlex Elder * Note: returned pointer is the address of a structure that's 3091a3530df3SAlex Elder * managed separately. Caller must *not* attempt to free it. 3092a3530df3SAlex Elder */ 3093a3530df3SAlex Elder static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con, 30948f43fb53SAlex Elder int *proto, int force_new) 30953d14c5d2SYehuda Sadeh { 30963d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 30973d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 30983d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 309974f1869fSAlex Elder struct ceph_auth_handshake *auth = &o->o_auth; 31003d14c5d2SYehuda Sadeh 310174f1869fSAlex Elder if (force_new && auth->authorizer) { 31026c1ea260SIlya Dryomov ceph_auth_destroy_authorizer(auth->authorizer); 310374f1869fSAlex Elder auth->authorizer = NULL; 31043d14c5d2SYehuda Sadeh } 310527859f97SSage Weil if (!auth->authorizer) { 310627859f97SSage Weil int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_OSD, 3107a3530df3SAlex Elder auth); 31083d14c5d2SYehuda Sadeh if (ret) 3109a3530df3SAlex Elder return ERR_PTR(ret); 311027859f97SSage Weil } else { 311127859f97SSage Weil int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_OSD, 31120bed9b5cSSage Weil auth); 31130bed9b5cSSage Weil if (ret) 31140bed9b5cSSage Weil return ERR_PTR(ret); 31153d14c5d2SYehuda Sadeh } 31163d14c5d2SYehuda Sadeh *proto = ac->protocol; 311774f1869fSAlex Elder 3118a3530df3SAlex Elder return auth; 31193d14c5d2SYehuda Sadeh } 31203d14c5d2SYehuda Sadeh 31213d14c5d2SYehuda Sadeh 31223d14c5d2SYehuda Sadeh static int verify_authorizer_reply(struct ceph_connection *con, int len) 31233d14c5d2SYehuda Sadeh { 31243d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 31253d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 31263d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 31273d14c5d2SYehuda Sadeh 312827859f97SSage Weil return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer, len); 31293d14c5d2SYehuda Sadeh } 31303d14c5d2SYehuda Sadeh 31313d14c5d2SYehuda Sadeh static int invalidate_authorizer(struct ceph_connection *con) 31323d14c5d2SYehuda Sadeh { 31333d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 31343d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 31353d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 31363d14c5d2SYehuda Sadeh 313727859f97SSage Weil ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD); 31383d14c5d2SYehuda Sadeh return ceph_monc_validate_auth(&osdc->client->monc); 31393d14c5d2SYehuda Sadeh } 31403d14c5d2SYehuda Sadeh 314179dbd1baSIlya Dryomov static int osd_sign_message(struct ceph_msg *msg) 314233d07337SYan, Zheng { 314379dbd1baSIlya Dryomov struct ceph_osd *o = msg->con->private; 314433d07337SYan, Zheng struct ceph_auth_handshake *auth = &o->o_auth; 314579dbd1baSIlya Dryomov 314633d07337SYan, Zheng return ceph_auth_sign_message(auth, msg); 314733d07337SYan, Zheng } 314833d07337SYan, Zheng 314979dbd1baSIlya Dryomov static int osd_check_message_signature(struct ceph_msg *msg) 315033d07337SYan, Zheng { 315179dbd1baSIlya Dryomov struct ceph_osd *o = msg->con->private; 315233d07337SYan, Zheng struct ceph_auth_handshake *auth = &o->o_auth; 315379dbd1baSIlya Dryomov 315433d07337SYan, Zheng return ceph_auth_check_message_signature(auth, msg); 315533d07337SYan, Zheng } 315633d07337SYan, Zheng 31573d14c5d2SYehuda Sadeh static const struct ceph_connection_operations osd_con_ops = { 31583d14c5d2SYehuda Sadeh .get = get_osd_con, 31593d14c5d2SYehuda Sadeh .put = put_osd_con, 31603d14c5d2SYehuda Sadeh .dispatch = dispatch, 31613d14c5d2SYehuda Sadeh .get_authorizer = get_authorizer, 31623d14c5d2SYehuda Sadeh .verify_authorizer_reply = verify_authorizer_reply, 31633d14c5d2SYehuda Sadeh .invalidate_authorizer = invalidate_authorizer, 31643d14c5d2SYehuda Sadeh .alloc_msg = alloc_msg, 316579dbd1baSIlya Dryomov .sign_message = osd_sign_message, 316679dbd1baSIlya Dryomov .check_message_signature = osd_check_message_signature, 31675aea3dcdSIlya Dryomov .fault = osd_fault, 31683d14c5d2SYehuda Sadeh }; 3169