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 */ 3579e94af20SIlya Dryomov static void ceph_osdc_release_request(struct kref *kref) 3583d14c5d2SYehuda Sadeh { 3599e94af20SIlya Dryomov struct ceph_osd_request *req = container_of(kref, 3609e94af20SIlya Dryomov struct ceph_osd_request, r_kref); 3615476492fSAlex Elder unsigned int which; 3623d14c5d2SYehuda Sadeh 3639e94af20SIlya Dryomov dout("%s %p (r_request %p r_reply %p)\n", __func__, req, 3649e94af20SIlya Dryomov req->r_request, req->r_reply); 3656562d661SIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&req->r_node)); 3666562d661SIlya Dryomov WARN_ON(!list_empty(&req->r_linger_item)); 3676562d661SIlya Dryomov WARN_ON(!list_empty(&req->r_linger_osd_item)); 3686562d661SIlya Dryomov WARN_ON(req->r_osd); 3699e94af20SIlya Dryomov 3703d14c5d2SYehuda Sadeh if (req->r_request) 3713d14c5d2SYehuda Sadeh ceph_msg_put(req->r_request); 3725aea3dcdSIlya Dryomov if (req->r_reply) 373ab8cb34aSAlex Elder ceph_msg_put(req->r_reply); 3740fff87ecSAlex Elder 3755476492fSAlex Elder for (which = 0; which < req->r_num_ops; which++) 3765476492fSAlex Elder osd_req_op_data_release(req, which); 3770fff87ecSAlex Elder 378a66dd383SIlya Dryomov target_destroy(&req->r_t); 3793d14c5d2SYehuda Sadeh ceph_put_snap_context(req->r_snapc); 380d30291b9SIlya Dryomov 3813d14c5d2SYehuda Sadeh if (req->r_mempool) 3823d14c5d2SYehuda Sadeh mempool_free(req, req->r_osdc->req_mempool); 3833f1af42aSIlya Dryomov else if (req->r_num_ops <= CEPH_OSD_SLAB_OPS) 3845522ae0bSAlex Elder kmem_cache_free(ceph_osd_request_cache, req); 3853f1af42aSIlya Dryomov else 3863f1af42aSIlya Dryomov kfree(req); 3873d14c5d2SYehuda Sadeh } 3889e94af20SIlya Dryomov 3899e94af20SIlya Dryomov void ceph_osdc_get_request(struct ceph_osd_request *req) 3909e94af20SIlya Dryomov { 3919e94af20SIlya Dryomov dout("%s %p (was %d)\n", __func__, req, 3929e94af20SIlya Dryomov atomic_read(&req->r_kref.refcount)); 3939e94af20SIlya Dryomov kref_get(&req->r_kref); 3949e94af20SIlya Dryomov } 3959e94af20SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_get_request); 3969e94af20SIlya Dryomov 3979e94af20SIlya Dryomov void ceph_osdc_put_request(struct ceph_osd_request *req) 3989e94af20SIlya Dryomov { 3993ed97d63SIlya Dryomov if (req) { 4009e94af20SIlya Dryomov dout("%s %p (was %d)\n", __func__, req, 4019e94af20SIlya Dryomov atomic_read(&req->r_kref.refcount)); 4029e94af20SIlya Dryomov kref_put(&req->r_kref, ceph_osdc_release_request); 4039e94af20SIlya Dryomov } 4043ed97d63SIlya Dryomov } 4059e94af20SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_put_request); 4063d14c5d2SYehuda Sadeh 4073d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, 4083d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 4091b83bef2SSage Weil unsigned int num_ops, 4103d14c5d2SYehuda Sadeh bool use_mempool, 41154a54007SAlex Elder gfp_t gfp_flags) 4123d14c5d2SYehuda Sadeh { 4133d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 4143d14c5d2SYehuda Sadeh 4153d14c5d2SYehuda Sadeh if (use_mempool) { 4163f1af42aSIlya Dryomov BUG_ON(num_ops > CEPH_OSD_SLAB_OPS); 4173d14c5d2SYehuda Sadeh req = mempool_alloc(osdc->req_mempool, gfp_flags); 4183f1af42aSIlya Dryomov } else if (num_ops <= CEPH_OSD_SLAB_OPS) { 4193f1af42aSIlya Dryomov req = kmem_cache_alloc(ceph_osd_request_cache, gfp_flags); 4203d14c5d2SYehuda Sadeh } else { 4213f1af42aSIlya Dryomov BUG_ON(num_ops > CEPH_OSD_MAX_OPS); 4223f1af42aSIlya Dryomov req = kmalloc(sizeof(*req) + num_ops * sizeof(req->r_ops[0]), 4233f1af42aSIlya Dryomov gfp_flags); 4243d14c5d2SYehuda Sadeh } 4253f1af42aSIlya Dryomov if (unlikely(!req)) 4263d14c5d2SYehuda Sadeh return NULL; 4273d14c5d2SYehuda Sadeh 4283f1af42aSIlya Dryomov /* req only, each op is zeroed in _osd_req_op_init() */ 4293f1af42aSIlya Dryomov memset(req, 0, sizeof(*req)); 4303f1af42aSIlya Dryomov 4313d14c5d2SYehuda Sadeh req->r_osdc = osdc; 4323d14c5d2SYehuda Sadeh req->r_mempool = use_mempool; 43379528734SAlex Elder req->r_num_ops = num_ops; 43484127282SIlya Dryomov req->r_snapid = CEPH_NOSNAP; 43584127282SIlya Dryomov req->r_snapc = ceph_get_snap_context(snapc); 4363d14c5d2SYehuda Sadeh 4373d14c5d2SYehuda Sadeh kref_init(&req->r_kref); 4383d14c5d2SYehuda Sadeh init_completion(&req->r_completion); 4393d14c5d2SYehuda Sadeh init_completion(&req->r_safe_completion); 440a978fa20SAlex Elder RB_CLEAR_NODE(&req->r_node); 4413d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&req->r_unsafe_item); 442a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&req->r_linger_item); 4431d0326b1SIlya Dryomov INIT_LIST_HEAD(&req->r_linger_osd_item); 444cd43045cSSage Weil 445a66dd383SIlya Dryomov target_init(&req->r_t); 44622116525SIlya Dryomov 44713d1ad16SIlya Dryomov dout("%s req %p\n", __func__, req); 44813d1ad16SIlya Dryomov return req; 4493f1af42aSIlya Dryomov } 45013d1ad16SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_alloc_request); 4513f1af42aSIlya Dryomov 45213d1ad16SIlya Dryomov int ceph_osdc_alloc_messages(struct ceph_osd_request *req, gfp_t gfp) 45313d1ad16SIlya Dryomov { 45413d1ad16SIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 45513d1ad16SIlya Dryomov struct ceph_msg *msg; 45613d1ad16SIlya Dryomov int msg_size; 4573d14c5d2SYehuda Sadeh 458d30291b9SIlya Dryomov WARN_ON(ceph_oid_empty(&req->r_base_oid)); 459d30291b9SIlya Dryomov 46013d1ad16SIlya Dryomov /* create request message */ 461ae458f5aSIlya Dryomov msg_size = 4 + 4 + 4; /* client_inc, osdmap_epoch, flags */ 462ae458f5aSIlya Dryomov msg_size += 4 + 4 + 4 + 8; /* mtime, reassert_version */ 463ae458f5aSIlya Dryomov msg_size += 2 + 4 + 8 + 4 + 4; /* oloc */ 464ae458f5aSIlya Dryomov msg_size += 1 + 8 + 4 + 4; /* pgid */ 46513d1ad16SIlya Dryomov msg_size += 4 + req->r_base_oid.name_len; /* oid */ 46613d1ad16SIlya Dryomov msg_size += 2 + req->r_num_ops * sizeof(struct ceph_osd_op); 467ae458f5aSIlya Dryomov msg_size += 8; /* snapid */ 468ae458f5aSIlya Dryomov msg_size += 8; /* snap_seq */ 46913d1ad16SIlya Dryomov msg_size += 4 + 8 * (req->r_snapc ? req->r_snapc->num_snaps : 0); 470ae458f5aSIlya Dryomov msg_size += 4; /* retry_attempt */ 471ae458f5aSIlya Dryomov 47213d1ad16SIlya Dryomov if (req->r_mempool) 4733d14c5d2SYehuda Sadeh msg = ceph_msgpool_get(&osdc->msgpool_op, 0); 4743d14c5d2SYehuda Sadeh else 47513d1ad16SIlya Dryomov msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size, gfp, true); 47613d1ad16SIlya Dryomov if (!msg) 47713d1ad16SIlya Dryomov return -ENOMEM; 4783d14c5d2SYehuda Sadeh 4793d14c5d2SYehuda Sadeh memset(msg->front.iov_base, 0, msg->front.iov_len); 4803d14c5d2SYehuda Sadeh req->r_request = msg; 4813d14c5d2SYehuda Sadeh 48213d1ad16SIlya Dryomov /* create reply message */ 48313d1ad16SIlya Dryomov msg_size = OSD_OPREPLY_FRONT_LEN; 484711da55dSIlya Dryomov msg_size += req->r_base_oid.name_len; 485711da55dSIlya Dryomov msg_size += req->r_num_ops * sizeof(struct ceph_osd_op); 48613d1ad16SIlya Dryomov 48713d1ad16SIlya Dryomov if (req->r_mempool) 48813d1ad16SIlya Dryomov msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0); 48913d1ad16SIlya Dryomov else 49013d1ad16SIlya Dryomov msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, msg_size, gfp, true); 49113d1ad16SIlya Dryomov if (!msg) 49213d1ad16SIlya Dryomov return -ENOMEM; 49313d1ad16SIlya Dryomov 49413d1ad16SIlya Dryomov req->r_reply = msg; 49513d1ad16SIlya Dryomov 49613d1ad16SIlya Dryomov return 0; 49713d1ad16SIlya Dryomov } 49813d1ad16SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_alloc_messages); 4993d14c5d2SYehuda Sadeh 500a8dd0a37SAlex Elder static bool osd_req_opcode_valid(u16 opcode) 501a8dd0a37SAlex Elder { 502a8dd0a37SAlex Elder switch (opcode) { 50370b5bfa3SIlya Dryomov #define GENERATE_CASE(op, opcode, str) case CEPH_OSD_OP_##op: return true; 50470b5bfa3SIlya Dryomov __CEPH_FORALL_OSD_OPS(GENERATE_CASE) 50570b5bfa3SIlya Dryomov #undef GENERATE_CASE 506a8dd0a37SAlex Elder default: 507a8dd0a37SAlex Elder return false; 508a8dd0a37SAlex Elder } 509a8dd0a37SAlex Elder } 510a8dd0a37SAlex Elder 51133803f33SAlex Elder /* 51233803f33SAlex Elder * This is an osd op init function for opcodes that have no data or 51333803f33SAlex Elder * other information associated with them. It also serves as a 51433803f33SAlex Elder * common init routine for all the other init functions, below. 51533803f33SAlex Elder */ 516c99d2d4aSAlex Elder static struct ceph_osd_req_op * 51749719778SAlex Elder _osd_req_op_init(struct ceph_osd_request *osd_req, unsigned int which, 518144cba14SYan, Zheng u16 opcode, u32 flags) 51933803f33SAlex Elder { 520c99d2d4aSAlex Elder struct ceph_osd_req_op *op; 521c99d2d4aSAlex Elder 522c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 52333803f33SAlex Elder BUG_ON(!osd_req_opcode_valid(opcode)); 52433803f33SAlex Elder 525c99d2d4aSAlex Elder op = &osd_req->r_ops[which]; 52633803f33SAlex Elder memset(op, 0, sizeof (*op)); 52733803f33SAlex Elder op->op = opcode; 528144cba14SYan, Zheng op->flags = flags; 529c99d2d4aSAlex Elder 530c99d2d4aSAlex Elder return op; 53133803f33SAlex Elder } 53233803f33SAlex Elder 53349719778SAlex Elder void osd_req_op_init(struct ceph_osd_request *osd_req, 534144cba14SYan, Zheng unsigned int which, u16 opcode, u32 flags) 53549719778SAlex Elder { 536144cba14SYan, Zheng (void)_osd_req_op_init(osd_req, which, opcode, flags); 53749719778SAlex Elder } 53849719778SAlex Elder EXPORT_SYMBOL(osd_req_op_init); 53949719778SAlex Elder 540c99d2d4aSAlex Elder void osd_req_op_extent_init(struct ceph_osd_request *osd_req, 541c99d2d4aSAlex Elder unsigned int which, u16 opcode, 54233803f33SAlex Elder u64 offset, u64 length, 54333803f33SAlex Elder u64 truncate_size, u32 truncate_seq) 54433803f33SAlex Elder { 545144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 546144cba14SYan, Zheng opcode, 0); 54733803f33SAlex Elder size_t payload_len = 0; 54833803f33SAlex Elder 549ad7a60deSLi Wang BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && 550e30b7577SIlya Dryomov opcode != CEPH_OSD_OP_WRITEFULL && opcode != CEPH_OSD_OP_ZERO && 551e30b7577SIlya Dryomov opcode != CEPH_OSD_OP_TRUNCATE); 55233803f33SAlex Elder 55333803f33SAlex Elder op->extent.offset = offset; 55433803f33SAlex Elder op->extent.length = length; 55533803f33SAlex Elder op->extent.truncate_size = truncate_size; 55633803f33SAlex Elder op->extent.truncate_seq = truncate_seq; 557e30b7577SIlya Dryomov if (opcode == CEPH_OSD_OP_WRITE || opcode == CEPH_OSD_OP_WRITEFULL) 55833803f33SAlex Elder payload_len += length; 55933803f33SAlex Elder 560de2aa102SIlya Dryomov op->indata_len = payload_len; 56133803f33SAlex Elder } 56233803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_init); 56333803f33SAlex Elder 564c99d2d4aSAlex Elder void osd_req_op_extent_update(struct ceph_osd_request *osd_req, 565c99d2d4aSAlex Elder unsigned int which, u64 length) 566e5975c7cSAlex Elder { 567c99d2d4aSAlex Elder struct ceph_osd_req_op *op; 568c99d2d4aSAlex Elder u64 previous; 569c99d2d4aSAlex Elder 570c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 571c99d2d4aSAlex Elder op = &osd_req->r_ops[which]; 572c99d2d4aSAlex Elder previous = op->extent.length; 573e5975c7cSAlex Elder 574e5975c7cSAlex Elder if (length == previous) 575e5975c7cSAlex Elder return; /* Nothing to do */ 576e5975c7cSAlex Elder BUG_ON(length > previous); 577e5975c7cSAlex Elder 578e5975c7cSAlex Elder op->extent.length = length; 579de2aa102SIlya Dryomov op->indata_len -= previous - length; 580e5975c7cSAlex Elder } 581e5975c7cSAlex Elder EXPORT_SYMBOL(osd_req_op_extent_update); 582e5975c7cSAlex Elder 5832c63f49aSYan, Zheng void osd_req_op_extent_dup_last(struct ceph_osd_request *osd_req, 5842c63f49aSYan, Zheng unsigned int which, u64 offset_inc) 5852c63f49aSYan, Zheng { 5862c63f49aSYan, Zheng struct ceph_osd_req_op *op, *prev_op; 5872c63f49aSYan, Zheng 5882c63f49aSYan, Zheng BUG_ON(which + 1 >= osd_req->r_num_ops); 5892c63f49aSYan, Zheng 5902c63f49aSYan, Zheng prev_op = &osd_req->r_ops[which]; 5912c63f49aSYan, Zheng op = _osd_req_op_init(osd_req, which + 1, prev_op->op, prev_op->flags); 5922c63f49aSYan, Zheng /* dup previous one */ 5932c63f49aSYan, Zheng op->indata_len = prev_op->indata_len; 5942c63f49aSYan, Zheng op->outdata_len = prev_op->outdata_len; 5952c63f49aSYan, Zheng op->extent = prev_op->extent; 5962c63f49aSYan, Zheng /* adjust offset */ 5972c63f49aSYan, Zheng op->extent.offset += offset_inc; 5982c63f49aSYan, Zheng op->extent.length -= offset_inc; 5992c63f49aSYan, Zheng 6002c63f49aSYan, Zheng if (op->op == CEPH_OSD_OP_WRITE || op->op == CEPH_OSD_OP_WRITEFULL) 6012c63f49aSYan, Zheng op->indata_len -= offset_inc; 6022c63f49aSYan, Zheng } 6032c63f49aSYan, Zheng EXPORT_SYMBOL(osd_req_op_extent_dup_last); 6042c63f49aSYan, Zheng 605c99d2d4aSAlex Elder void osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which, 60604017e29SAlex Elder u16 opcode, const char *class, const char *method) 60733803f33SAlex Elder { 608144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 609144cba14SYan, Zheng opcode, 0); 6105f562df5SAlex Elder struct ceph_pagelist *pagelist; 61133803f33SAlex Elder size_t payload_len = 0; 61233803f33SAlex Elder size_t size; 61333803f33SAlex Elder 61433803f33SAlex Elder BUG_ON(opcode != CEPH_OSD_OP_CALL); 61533803f33SAlex Elder 6165f562df5SAlex Elder pagelist = kmalloc(sizeof (*pagelist), GFP_NOFS); 6175f562df5SAlex Elder BUG_ON(!pagelist); 6185f562df5SAlex Elder ceph_pagelist_init(pagelist); 6195f562df5SAlex Elder 62033803f33SAlex Elder op->cls.class_name = class; 62133803f33SAlex Elder size = strlen(class); 62233803f33SAlex Elder BUG_ON(size > (size_t) U8_MAX); 62333803f33SAlex Elder op->cls.class_len = size; 6245f562df5SAlex Elder ceph_pagelist_append(pagelist, class, size); 62533803f33SAlex Elder payload_len += size; 62633803f33SAlex Elder 62733803f33SAlex Elder op->cls.method_name = method; 62833803f33SAlex Elder size = strlen(method); 62933803f33SAlex Elder BUG_ON(size > (size_t) U8_MAX); 63033803f33SAlex Elder op->cls.method_len = size; 6315f562df5SAlex Elder ceph_pagelist_append(pagelist, method, size); 63233803f33SAlex Elder payload_len += size; 63333803f33SAlex Elder 634a4ce40a9SAlex Elder osd_req_op_cls_request_info_pagelist(osd_req, which, pagelist); 6355f562df5SAlex Elder 636de2aa102SIlya Dryomov op->indata_len = payload_len; 63733803f33SAlex Elder } 63833803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_init); 6398c042b0dSAlex Elder 640d74b50beSYan, Zheng int osd_req_op_xattr_init(struct ceph_osd_request *osd_req, unsigned int which, 641d74b50beSYan, Zheng u16 opcode, const char *name, const void *value, 642d74b50beSYan, Zheng size_t size, u8 cmp_op, u8 cmp_mode) 643d74b50beSYan, Zheng { 644144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 645144cba14SYan, Zheng opcode, 0); 646d74b50beSYan, Zheng struct ceph_pagelist *pagelist; 647d74b50beSYan, Zheng size_t payload_len; 648d74b50beSYan, Zheng 649d74b50beSYan, Zheng BUG_ON(opcode != CEPH_OSD_OP_SETXATTR && opcode != CEPH_OSD_OP_CMPXATTR); 650d74b50beSYan, Zheng 651d74b50beSYan, Zheng pagelist = kmalloc(sizeof(*pagelist), GFP_NOFS); 652d74b50beSYan, Zheng if (!pagelist) 653d74b50beSYan, Zheng return -ENOMEM; 654d74b50beSYan, Zheng 655d74b50beSYan, Zheng ceph_pagelist_init(pagelist); 656d74b50beSYan, Zheng 657d74b50beSYan, Zheng payload_len = strlen(name); 658d74b50beSYan, Zheng op->xattr.name_len = payload_len; 659d74b50beSYan, Zheng ceph_pagelist_append(pagelist, name, payload_len); 660d74b50beSYan, Zheng 661d74b50beSYan, Zheng op->xattr.value_len = size; 662d74b50beSYan, Zheng ceph_pagelist_append(pagelist, value, size); 663d74b50beSYan, Zheng payload_len += size; 664d74b50beSYan, Zheng 665d74b50beSYan, Zheng op->xattr.cmp_op = cmp_op; 666d74b50beSYan, Zheng op->xattr.cmp_mode = cmp_mode; 667d74b50beSYan, Zheng 668d74b50beSYan, Zheng ceph_osd_data_pagelist_init(&op->xattr.osd_data, pagelist); 669de2aa102SIlya Dryomov op->indata_len = payload_len; 670d74b50beSYan, Zheng return 0; 671d74b50beSYan, Zheng } 672d74b50beSYan, Zheng EXPORT_SYMBOL(osd_req_op_xattr_init); 673d74b50beSYan, Zheng 674c99d2d4aSAlex Elder void osd_req_op_watch_init(struct ceph_osd_request *osd_req, 675c99d2d4aSAlex Elder unsigned int which, u16 opcode, 67633803f33SAlex Elder u64 cookie, u64 version, int flag) 67733803f33SAlex Elder { 678144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 679144cba14SYan, Zheng opcode, 0); 68033803f33SAlex Elder 681c99d2d4aSAlex Elder BUG_ON(opcode != CEPH_OSD_OP_NOTIFY_ACK && opcode != CEPH_OSD_OP_WATCH); 68233803f33SAlex Elder 68333803f33SAlex Elder op->watch.cookie = cookie; 6849ef1ee5aSAlex Elder op->watch.ver = version; 68533803f33SAlex Elder if (opcode == CEPH_OSD_OP_WATCH && flag) 68633803f33SAlex Elder op->watch.flag = (u8)1; 68733803f33SAlex Elder } 68833803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_watch_init); 68933803f33SAlex Elder 690c647b8a8SIlya Dryomov void osd_req_op_alloc_hint_init(struct ceph_osd_request *osd_req, 691c647b8a8SIlya Dryomov unsigned int which, 692c647b8a8SIlya Dryomov u64 expected_object_size, 693c647b8a8SIlya Dryomov u64 expected_write_size) 694c647b8a8SIlya Dryomov { 695c647b8a8SIlya Dryomov struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 696144cba14SYan, Zheng CEPH_OSD_OP_SETALLOCHINT, 697144cba14SYan, Zheng 0); 698c647b8a8SIlya Dryomov 699c647b8a8SIlya Dryomov op->alloc_hint.expected_object_size = expected_object_size; 700c647b8a8SIlya Dryomov op->alloc_hint.expected_write_size = expected_write_size; 701c647b8a8SIlya Dryomov 702c647b8a8SIlya Dryomov /* 703c647b8a8SIlya Dryomov * CEPH_OSD_OP_SETALLOCHINT op is advisory and therefore deemed 704c647b8a8SIlya Dryomov * not worth a feature bit. Set FAILOK per-op flag to make 705c647b8a8SIlya Dryomov * sure older osds don't trip over an unsupported opcode. 706c647b8a8SIlya Dryomov */ 707c647b8a8SIlya Dryomov op->flags |= CEPH_OSD_OP_FLAG_FAILOK; 708c647b8a8SIlya Dryomov } 709c647b8a8SIlya Dryomov EXPORT_SYMBOL(osd_req_op_alloc_hint_init); 710c647b8a8SIlya Dryomov 71190af3602SAlex Elder static void ceph_osdc_msg_data_add(struct ceph_msg *msg, 712ec9123c5SAlex Elder struct ceph_osd_data *osd_data) 713ec9123c5SAlex Elder { 714ec9123c5SAlex Elder u64 length = ceph_osd_data_length(osd_data); 715ec9123c5SAlex Elder 716ec9123c5SAlex Elder if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { 717ec9123c5SAlex Elder BUG_ON(length > (u64) SIZE_MAX); 718ec9123c5SAlex Elder if (length) 71990af3602SAlex Elder ceph_msg_data_add_pages(msg, osd_data->pages, 720ec9123c5SAlex Elder length, osd_data->alignment); 721ec9123c5SAlex Elder } else if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGELIST) { 722ec9123c5SAlex Elder BUG_ON(!length); 72390af3602SAlex Elder ceph_msg_data_add_pagelist(msg, osd_data->pagelist); 724ec9123c5SAlex Elder #ifdef CONFIG_BLOCK 725ec9123c5SAlex Elder } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) { 72690af3602SAlex Elder ceph_msg_data_add_bio(msg, osd_data->bio, length); 727ec9123c5SAlex Elder #endif 728ec9123c5SAlex Elder } else { 729ec9123c5SAlex Elder BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_NONE); 730ec9123c5SAlex Elder } 731ec9123c5SAlex Elder } 732ec9123c5SAlex Elder 733bb873b53SIlya Dryomov static u32 osd_req_encode_op(struct ceph_osd_op *dst, 734bb873b53SIlya Dryomov const struct ceph_osd_req_op *src) 7353d14c5d2SYehuda Sadeh { 736a8dd0a37SAlex Elder if (WARN_ON(!osd_req_opcode_valid(src->op))) { 737a8dd0a37SAlex Elder pr_err("unrecognized osd opcode %d\n", src->op); 738a8dd0a37SAlex Elder 739a8dd0a37SAlex Elder return 0; 740a8dd0a37SAlex Elder } 7413d14c5d2SYehuda Sadeh 742065a68f9SAlex Elder switch (src->op) { 743fbfab539SAlex Elder case CEPH_OSD_OP_STAT: 744fbfab539SAlex Elder break; 7453d14c5d2SYehuda Sadeh case CEPH_OSD_OP_READ: 7463d14c5d2SYehuda Sadeh case CEPH_OSD_OP_WRITE: 747e30b7577SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 748ad7a60deSLi Wang case CEPH_OSD_OP_ZERO: 749ad7a60deSLi Wang case CEPH_OSD_OP_TRUNCATE: 750175face2SAlex Elder dst->extent.offset = cpu_to_le64(src->extent.offset); 751175face2SAlex Elder dst->extent.length = cpu_to_le64(src->extent.length); 7523d14c5d2SYehuda Sadeh dst->extent.truncate_size = 7533d14c5d2SYehuda Sadeh cpu_to_le64(src->extent.truncate_size); 7543d14c5d2SYehuda Sadeh dst->extent.truncate_seq = 7553d14c5d2SYehuda Sadeh cpu_to_le32(src->extent.truncate_seq); 7563d14c5d2SYehuda Sadeh break; 7573d14c5d2SYehuda Sadeh case CEPH_OSD_OP_CALL: 7583d14c5d2SYehuda Sadeh dst->cls.class_len = src->cls.class_len; 7593d14c5d2SYehuda Sadeh dst->cls.method_len = src->cls.method_len; 760bb873b53SIlya Dryomov dst->cls.indata_len = cpu_to_le32(src->cls.indata_len); 7613d14c5d2SYehuda Sadeh break; 7623d14c5d2SYehuda Sadeh case CEPH_OSD_OP_STARTSYNC: 7633d14c5d2SYehuda Sadeh break; 764a40c4f10SYehuda Sadeh case CEPH_OSD_OP_NOTIFY_ACK: 765a40c4f10SYehuda Sadeh case CEPH_OSD_OP_WATCH: 766a40c4f10SYehuda Sadeh dst->watch.cookie = cpu_to_le64(src->watch.cookie); 767a40c4f10SYehuda Sadeh dst->watch.ver = cpu_to_le64(src->watch.ver); 768a40c4f10SYehuda Sadeh dst->watch.flag = src->watch.flag; 769a40c4f10SYehuda Sadeh break; 770c647b8a8SIlya Dryomov case CEPH_OSD_OP_SETALLOCHINT: 771c647b8a8SIlya Dryomov dst->alloc_hint.expected_object_size = 772c647b8a8SIlya Dryomov cpu_to_le64(src->alloc_hint.expected_object_size); 773c647b8a8SIlya Dryomov dst->alloc_hint.expected_write_size = 774c647b8a8SIlya Dryomov cpu_to_le64(src->alloc_hint.expected_write_size); 775c647b8a8SIlya Dryomov break; 776d74b50beSYan, Zheng case CEPH_OSD_OP_SETXATTR: 777d74b50beSYan, Zheng case CEPH_OSD_OP_CMPXATTR: 778d74b50beSYan, Zheng dst->xattr.name_len = cpu_to_le32(src->xattr.name_len); 779d74b50beSYan, Zheng dst->xattr.value_len = cpu_to_le32(src->xattr.value_len); 780d74b50beSYan, Zheng dst->xattr.cmp_op = src->xattr.cmp_op; 781d74b50beSYan, Zheng dst->xattr.cmp_mode = src->xattr.cmp_mode; 782d74b50beSYan, Zheng break; 783864e9197SYan, Zheng case CEPH_OSD_OP_CREATE: 784864e9197SYan, Zheng case CEPH_OSD_OP_DELETE: 785864e9197SYan, Zheng break; 7863d14c5d2SYehuda Sadeh default: 7874c46459cSAlex Elder pr_err("unsupported osd opcode %s\n", 7888f63ca2dSAlex Elder ceph_osd_op_name(src->op)); 7894c46459cSAlex Elder WARN_ON(1); 790a8dd0a37SAlex Elder 791a8dd0a37SAlex Elder return 0; 7923d14c5d2SYehuda Sadeh } 7937b25bf5fSIlya Dryomov 794a8dd0a37SAlex Elder dst->op = cpu_to_le16(src->op); 7957b25bf5fSIlya Dryomov dst->flags = cpu_to_le32(src->flags); 796de2aa102SIlya Dryomov dst->payload_len = cpu_to_le32(src->indata_len); 797175face2SAlex Elder 798bb873b53SIlya Dryomov return src->indata_len; 7993d14c5d2SYehuda Sadeh } 8003d14c5d2SYehuda Sadeh 8013d14c5d2SYehuda Sadeh /* 8023d14c5d2SYehuda Sadeh * build new request AND message, calculate layout, and adjust file 8033d14c5d2SYehuda Sadeh * extent as needed. 8043d14c5d2SYehuda Sadeh * 8053d14c5d2SYehuda Sadeh * if the file was recently truncated, we include information about its 8063d14c5d2SYehuda Sadeh * old and new size so that the object can be updated appropriately. (we 8073d14c5d2SYehuda Sadeh * avoid synchronously deleting truncated objects because it's slow.) 8083d14c5d2SYehuda Sadeh * 8093d14c5d2SYehuda Sadeh * if @do_sync, include a 'startsync' command so that the osd will flush 8103d14c5d2SYehuda Sadeh * data quickly. 8113d14c5d2SYehuda Sadeh */ 8123d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, 8133d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 8143d14c5d2SYehuda Sadeh struct ceph_vino vino, 815715e4cd4SYan, Zheng u64 off, u64 *plen, 816715e4cd4SYan, Zheng unsigned int which, int num_ops, 8173d14c5d2SYehuda Sadeh int opcode, int flags, 8183d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 8193d14c5d2SYehuda Sadeh u32 truncate_seq, 8203d14c5d2SYehuda Sadeh u64 truncate_size, 821153e5167SAlex Elder bool use_mempool) 8223d14c5d2SYehuda Sadeh { 8233d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 82475d1c941SAlex Elder u64 objnum = 0; 82575d1c941SAlex Elder u64 objoff = 0; 82675d1c941SAlex Elder u64 objlen = 0; 8276816282dSSage Weil int r; 8283d14c5d2SYehuda Sadeh 829ad7a60deSLi Wang BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && 830864e9197SYan, Zheng opcode != CEPH_OSD_OP_ZERO && opcode != CEPH_OSD_OP_TRUNCATE && 831864e9197SYan, Zheng opcode != CEPH_OSD_OP_CREATE && opcode != CEPH_OSD_OP_DELETE); 8323d14c5d2SYehuda Sadeh 833acead002SAlex Elder req = ceph_osdc_alloc_request(osdc, snapc, num_ops, use_mempool, 834ae7ca4a3SAlex Elder GFP_NOFS); 83513d1ad16SIlya Dryomov if (!req) { 83613d1ad16SIlya Dryomov r = -ENOMEM; 83713d1ad16SIlya Dryomov goto fail; 83813d1ad16SIlya Dryomov } 83979528734SAlex Elder 8403d14c5d2SYehuda Sadeh /* calculate max write size */ 841a19dadfbSAlex Elder r = calc_layout(layout, off, plen, &objnum, &objoff, &objlen); 84213d1ad16SIlya Dryomov if (r) 84313d1ad16SIlya Dryomov goto fail; 844a19dadfbSAlex Elder 845864e9197SYan, Zheng if (opcode == CEPH_OSD_OP_CREATE || opcode == CEPH_OSD_OP_DELETE) { 846144cba14SYan, Zheng osd_req_op_init(req, which, opcode, 0); 847864e9197SYan, Zheng } else { 848864e9197SYan, Zheng u32 object_size = le32_to_cpu(layout->fl_object_size); 849864e9197SYan, Zheng u32 object_base = off - objoff; 850ccca4e37SYan, Zheng if (!(truncate_seq == 1 && truncate_size == -1ULL)) { 851d18d1e28SAlex Elder if (truncate_size <= object_base) { 852d18d1e28SAlex Elder truncate_size = 0; 853d18d1e28SAlex Elder } else { 854d18d1e28SAlex Elder truncate_size -= object_base; 855d18d1e28SAlex Elder if (truncate_size > object_size) 856d18d1e28SAlex Elder truncate_size = object_size; 857d18d1e28SAlex Elder } 858ccca4e37SYan, Zheng } 859715e4cd4SYan, Zheng osd_req_op_extent_init(req, which, opcode, objoff, objlen, 860b0270324SAlex Elder truncate_size, truncate_seq); 861864e9197SYan, Zheng } 862d18d1e28SAlex Elder 863bb873b53SIlya Dryomov req->r_flags = flags; 8643c972c95SIlya Dryomov req->r_base_oloc.pool = ceph_file_layout_pg_pool(*layout); 865d30291b9SIlya Dryomov ceph_oid_printf(&req->r_base_oid, "%llx.%08llx", vino.ino, objnum); 866dbe0fc41SAlex Elder 867bb873b53SIlya Dryomov req->r_snapid = vino.snap; 868bb873b53SIlya Dryomov if (flags & CEPH_OSD_FLAG_WRITE) 869bb873b53SIlya Dryomov req->r_data_offset = off; 870bb873b53SIlya Dryomov 87113d1ad16SIlya Dryomov r = ceph_osdc_alloc_messages(req, GFP_NOFS); 87213d1ad16SIlya Dryomov if (r) 87313d1ad16SIlya Dryomov goto fail; 87413d1ad16SIlya Dryomov 8753d14c5d2SYehuda Sadeh return req; 87613d1ad16SIlya Dryomov 87713d1ad16SIlya Dryomov fail: 87813d1ad16SIlya Dryomov ceph_osdc_put_request(req); 87913d1ad16SIlya Dryomov return ERR_PTR(r); 8803d14c5d2SYehuda Sadeh } 8813d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_new_request); 8823d14c5d2SYehuda Sadeh 8833d14c5d2SYehuda Sadeh /* 8843d14c5d2SYehuda Sadeh * We keep osd requests in an rbtree, sorted by ->r_tid. 8853d14c5d2SYehuda Sadeh */ 886fcd00b68SIlya Dryomov DEFINE_RB_FUNCS(request, struct ceph_osd_request, r_tid, r_node) 8873d14c5d2SYehuda Sadeh 8880247a0cfSIlya Dryomov static bool osd_homeless(struct ceph_osd *osd) 8890247a0cfSIlya Dryomov { 8900247a0cfSIlya Dryomov return osd->o_osd == CEPH_HOMELESS_OSD; 8910247a0cfSIlya Dryomov } 8920247a0cfSIlya Dryomov 8935aea3dcdSIlya Dryomov static bool osd_registered(struct ceph_osd *osd) 8943d14c5d2SYehuda Sadeh { 8955aea3dcdSIlya Dryomov verify_osdc_locked(osd->o_osdc); 8963d14c5d2SYehuda Sadeh 8975aea3dcdSIlya Dryomov return !RB_EMPTY_NODE(&osd->o_node); 8983d14c5d2SYehuda Sadeh } 8993d14c5d2SYehuda Sadeh 9003d14c5d2SYehuda Sadeh /* 9010247a0cfSIlya Dryomov * Assumes @osd is zero-initialized. 9020247a0cfSIlya Dryomov */ 9030247a0cfSIlya Dryomov static void osd_init(struct ceph_osd *osd) 9040247a0cfSIlya Dryomov { 9050247a0cfSIlya Dryomov atomic_set(&osd->o_ref, 1); 9060247a0cfSIlya Dryomov RB_CLEAR_NODE(&osd->o_node); 9075aea3dcdSIlya Dryomov osd->o_requests = RB_ROOT; 9080247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_linger_requests); 9090247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_osd_lru); 9100247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_keepalive_item); 9110247a0cfSIlya Dryomov osd->o_incarnation = 1; 9125aea3dcdSIlya Dryomov mutex_init(&osd->lock); 9130247a0cfSIlya Dryomov } 9140247a0cfSIlya Dryomov 9150247a0cfSIlya Dryomov static void osd_cleanup(struct ceph_osd *osd) 9160247a0cfSIlya Dryomov { 9170247a0cfSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&osd->o_node)); 9185aea3dcdSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_requests)); 9190247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_linger_requests)); 9200247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_osd_lru)); 9210247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_keepalive_item)); 9220247a0cfSIlya Dryomov 9230247a0cfSIlya Dryomov if (osd->o_auth.authorizer) { 9240247a0cfSIlya Dryomov WARN_ON(osd_homeless(osd)); 9250247a0cfSIlya Dryomov ceph_auth_destroy_authorizer(osd->o_auth.authorizer); 9260247a0cfSIlya Dryomov } 9270247a0cfSIlya Dryomov } 9280247a0cfSIlya Dryomov 9290247a0cfSIlya Dryomov /* 9303d14c5d2SYehuda Sadeh * Track open sessions with osds. 9313d14c5d2SYehuda Sadeh */ 932e10006f8SAlex Elder static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum) 9333d14c5d2SYehuda Sadeh { 9343d14c5d2SYehuda Sadeh struct ceph_osd *osd; 9353d14c5d2SYehuda Sadeh 9360247a0cfSIlya Dryomov WARN_ON(onum == CEPH_HOMELESS_OSD); 9370247a0cfSIlya Dryomov 9387a28f59bSIlya Dryomov osd = kzalloc(sizeof(*osd), GFP_NOIO | __GFP_NOFAIL); 9390247a0cfSIlya Dryomov osd_init(osd); 9403d14c5d2SYehuda Sadeh osd->o_osdc = osdc; 941e10006f8SAlex Elder osd->o_osd = onum; 9423d14c5d2SYehuda Sadeh 943b7a9e5ddSSage Weil ceph_con_init(&osd->o_con, osd, &osd_con_ops, &osdc->client->msgr); 9443d14c5d2SYehuda Sadeh 9453d14c5d2SYehuda Sadeh return osd; 9463d14c5d2SYehuda Sadeh } 9473d14c5d2SYehuda Sadeh 9483d14c5d2SYehuda Sadeh static struct ceph_osd *get_osd(struct ceph_osd *osd) 9493d14c5d2SYehuda Sadeh { 9503d14c5d2SYehuda Sadeh if (atomic_inc_not_zero(&osd->o_ref)) { 9513d14c5d2SYehuda Sadeh dout("get_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref)-1, 9523d14c5d2SYehuda Sadeh atomic_read(&osd->o_ref)); 9533d14c5d2SYehuda Sadeh return osd; 9543d14c5d2SYehuda Sadeh } else { 9553d14c5d2SYehuda Sadeh dout("get_osd %p FAIL\n", osd); 9563d14c5d2SYehuda Sadeh return NULL; 9573d14c5d2SYehuda Sadeh } 9583d14c5d2SYehuda Sadeh } 9593d14c5d2SYehuda Sadeh 9603d14c5d2SYehuda Sadeh static void put_osd(struct ceph_osd *osd) 9613d14c5d2SYehuda Sadeh { 9623d14c5d2SYehuda Sadeh dout("put_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref), 9633d14c5d2SYehuda Sadeh atomic_read(&osd->o_ref) - 1); 964b28ec2f3SIlya Dryomov if (atomic_dec_and_test(&osd->o_ref)) { 9650247a0cfSIlya Dryomov osd_cleanup(osd); 9663d14c5d2SYehuda Sadeh kfree(osd); 9673d14c5d2SYehuda Sadeh } 9683d14c5d2SYehuda Sadeh } 9693d14c5d2SYehuda Sadeh 970fcd00b68SIlya Dryomov DEFINE_RB_FUNCS(osd, struct ceph_osd, o_osd, o_node) 971fcd00b68SIlya Dryomov 9729dd2845cSIlya Dryomov static void __move_osd_to_lru(struct ceph_osd *osd) 9733d14c5d2SYehuda Sadeh { 9749dd2845cSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 9759dd2845cSIlya Dryomov 9769dd2845cSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 9773d14c5d2SYehuda Sadeh BUG_ON(!list_empty(&osd->o_osd_lru)); 978bbf37ec3SIlya Dryomov 9799dd2845cSIlya Dryomov spin_lock(&osdc->osd_lru_lock); 9803d14c5d2SYehuda Sadeh list_add_tail(&osd->o_osd_lru, &osdc->osd_lru); 9819dd2845cSIlya Dryomov spin_unlock(&osdc->osd_lru_lock); 9829dd2845cSIlya Dryomov 983a319bf56SIlya Dryomov osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl; 9843d14c5d2SYehuda Sadeh } 9853d14c5d2SYehuda Sadeh 9869dd2845cSIlya Dryomov static void maybe_move_osd_to_lru(struct ceph_osd *osd) 987bbf37ec3SIlya Dryomov { 9885aea3dcdSIlya Dryomov if (RB_EMPTY_ROOT(&osd->o_requests) && 989bbf37ec3SIlya Dryomov list_empty(&osd->o_linger_requests)) 9909dd2845cSIlya Dryomov __move_osd_to_lru(osd); 991bbf37ec3SIlya Dryomov } 992bbf37ec3SIlya Dryomov 9933d14c5d2SYehuda Sadeh static void __remove_osd_from_lru(struct ceph_osd *osd) 9943d14c5d2SYehuda Sadeh { 9959dd2845cSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 9969dd2845cSIlya Dryomov 9979dd2845cSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 9989dd2845cSIlya Dryomov 9999dd2845cSIlya Dryomov spin_lock(&osdc->osd_lru_lock); 10003d14c5d2SYehuda Sadeh if (!list_empty(&osd->o_osd_lru)) 10013d14c5d2SYehuda Sadeh list_del_init(&osd->o_osd_lru); 10029dd2845cSIlya Dryomov spin_unlock(&osdc->osd_lru_lock); 10033d14c5d2SYehuda Sadeh } 10043d14c5d2SYehuda Sadeh 10053d14c5d2SYehuda Sadeh /* 10065aea3dcdSIlya Dryomov * Close the connection and assign any leftover requests to the 10075aea3dcdSIlya Dryomov * homeless session. 10085aea3dcdSIlya Dryomov */ 10095aea3dcdSIlya Dryomov static void close_osd(struct ceph_osd *osd) 10105aea3dcdSIlya Dryomov { 10115aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 10125aea3dcdSIlya Dryomov struct rb_node *n; 10135aea3dcdSIlya Dryomov 10145aea3dcdSIlya Dryomov verify_osdc_wrlocked(osdc); 10155aea3dcdSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 10165aea3dcdSIlya Dryomov 10175aea3dcdSIlya Dryomov ceph_con_close(&osd->o_con); 10185aea3dcdSIlya Dryomov 10195aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; ) { 10205aea3dcdSIlya Dryomov struct ceph_osd_request *req = 10215aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 10225aea3dcdSIlya Dryomov 10235aea3dcdSIlya Dryomov n = rb_next(n); /* unlink_request() */ 10245aea3dcdSIlya Dryomov 10255aea3dcdSIlya Dryomov dout(" reassigning req %p tid %llu\n", req, req->r_tid); 10265aea3dcdSIlya Dryomov unlink_request(osd, req); 10275aea3dcdSIlya Dryomov link_request(&osdc->homeless_osd, req); 10285aea3dcdSIlya Dryomov } 10295aea3dcdSIlya Dryomov 10305aea3dcdSIlya Dryomov __remove_osd_from_lru(osd); 10315aea3dcdSIlya Dryomov erase_osd(&osdc->osds, osd); 10325aea3dcdSIlya Dryomov put_osd(osd); 10335aea3dcdSIlya Dryomov } 10345aea3dcdSIlya Dryomov 10355aea3dcdSIlya Dryomov /* 10363d14c5d2SYehuda Sadeh * reset osd connect 10373d14c5d2SYehuda Sadeh */ 10385aea3dcdSIlya Dryomov static int reopen_osd(struct ceph_osd *osd) 10393d14c5d2SYehuda Sadeh { 1040c3acb181SAlex Elder struct ceph_entity_addr *peer_addr; 10413d14c5d2SYehuda Sadeh 10425aea3dcdSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 10435aea3dcdSIlya Dryomov 10445aea3dcdSIlya Dryomov if (RB_EMPTY_ROOT(&osd->o_requests) && 1045a40c4f10SYehuda Sadeh list_empty(&osd->o_linger_requests)) { 10465aea3dcdSIlya Dryomov close_osd(osd); 1047c3acb181SAlex Elder return -ENODEV; 1048c3acb181SAlex Elder } 1049c3acb181SAlex Elder 10505aea3dcdSIlya Dryomov peer_addr = &osd->o_osdc->osdmap->osd_addr[osd->o_osd]; 1051c3acb181SAlex Elder if (!memcmp(peer_addr, &osd->o_con.peer_addr, sizeof (*peer_addr)) && 10523d14c5d2SYehuda Sadeh !ceph_con_opened(&osd->o_con)) { 10535aea3dcdSIlya Dryomov struct rb_node *n; 1054c3acb181SAlex Elder 10553d14c5d2SYehuda Sadeh dout("osd addr hasn't changed and connection never opened, " 10560b4af2e8SIlya Dryomov "letting msgr retry\n"); 10573d14c5d2SYehuda Sadeh /* touch each r_stamp for handle_timeout()'s benfit */ 10585aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) { 10595aea3dcdSIlya Dryomov struct ceph_osd_request *req = 10605aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 10613d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 10625aea3dcdSIlya Dryomov } 1063c3acb181SAlex Elder 1064c3acb181SAlex Elder return -EAGAIN; 10653d14c5d2SYehuda Sadeh } 1066c3acb181SAlex Elder 1067c3acb181SAlex Elder ceph_con_close(&osd->o_con); 1068c3acb181SAlex Elder ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, peer_addr); 1069c3acb181SAlex Elder osd->o_incarnation++; 1070c3acb181SAlex Elder 1071c3acb181SAlex Elder return 0; 10723d14c5d2SYehuda Sadeh } 10733d14c5d2SYehuda Sadeh 10745aea3dcdSIlya Dryomov static struct ceph_osd *lookup_create_osd(struct ceph_osd_client *osdc, int o, 10755aea3dcdSIlya Dryomov bool wrlocked) 10763d14c5d2SYehuda Sadeh { 10775aea3dcdSIlya Dryomov struct ceph_osd *osd; 10785aea3dcdSIlya Dryomov 10795aea3dcdSIlya Dryomov if (wrlocked) 10805aea3dcdSIlya Dryomov verify_osdc_wrlocked(osdc); 10815aea3dcdSIlya Dryomov else 10825aea3dcdSIlya Dryomov verify_osdc_locked(osdc); 10835aea3dcdSIlya Dryomov 10845aea3dcdSIlya Dryomov if (o != CEPH_HOMELESS_OSD) 10855aea3dcdSIlya Dryomov osd = lookup_osd(&osdc->osds, o); 10865aea3dcdSIlya Dryomov else 10875aea3dcdSIlya Dryomov osd = &osdc->homeless_osd; 10885aea3dcdSIlya Dryomov if (!osd) { 10895aea3dcdSIlya Dryomov if (!wrlocked) 10905aea3dcdSIlya Dryomov return ERR_PTR(-EAGAIN); 10915aea3dcdSIlya Dryomov 10925aea3dcdSIlya Dryomov osd = create_osd(osdc, o); 10935aea3dcdSIlya Dryomov insert_osd(&osdc->osds, osd); 10945aea3dcdSIlya Dryomov ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, 10955aea3dcdSIlya Dryomov &osdc->osdmap->osd_addr[osd->o_osd]); 10965aea3dcdSIlya Dryomov } 10975aea3dcdSIlya Dryomov 10985aea3dcdSIlya Dryomov dout("%s osdc %p osd%d -> osd %p\n", __func__, osdc, o, osd); 10995aea3dcdSIlya Dryomov return osd; 1100a40c4f10SYehuda Sadeh } 1101a40c4f10SYehuda Sadeh 11023d14c5d2SYehuda Sadeh /* 11035aea3dcdSIlya Dryomov * Create request <-> OSD session relation. 11045aea3dcdSIlya Dryomov * 11055aea3dcdSIlya Dryomov * @req has to be assigned a tid, @osd may be homeless. 11063d14c5d2SYehuda Sadeh */ 11075aea3dcdSIlya Dryomov static void link_request(struct ceph_osd *osd, struct ceph_osd_request *req) 11083d14c5d2SYehuda Sadeh { 11095aea3dcdSIlya Dryomov verify_osd_locked(osd); 11105aea3dcdSIlya Dryomov WARN_ON(!req->r_tid || req->r_osd); 11115aea3dcdSIlya Dryomov dout("%s osd %p osd%d req %p tid %llu\n", __func__, osd, osd->o_osd, 111235f9f8a0SSage Weil req, req->r_tid); 11135aea3dcdSIlya Dryomov 11145aea3dcdSIlya Dryomov if (!osd_homeless(osd)) 11155aea3dcdSIlya Dryomov __remove_osd_from_lru(osd); 11165aea3dcdSIlya Dryomov else 11175aea3dcdSIlya Dryomov atomic_inc(&osd->o_osdc->num_homeless); 11185aea3dcdSIlya Dryomov 11195aea3dcdSIlya Dryomov get_osd(osd); 11205aea3dcdSIlya Dryomov insert_request(&osd->o_requests, req); 11215aea3dcdSIlya Dryomov req->r_osd = osd; 112235f9f8a0SSage Weil } 112335f9f8a0SSage Weil 11245aea3dcdSIlya Dryomov static void unlink_request(struct ceph_osd *osd, struct ceph_osd_request *req) 11253d14c5d2SYehuda Sadeh { 11265aea3dcdSIlya Dryomov verify_osd_locked(osd); 11275aea3dcdSIlya Dryomov WARN_ON(req->r_osd != osd); 11285aea3dcdSIlya Dryomov dout("%s osd %p osd%d req %p tid %llu\n", __func__, osd, osd->o_osd, 11295aea3dcdSIlya Dryomov req, req->r_tid); 11305aea3dcdSIlya Dryomov 11315aea3dcdSIlya Dryomov req->r_osd = NULL; 11325aea3dcdSIlya Dryomov erase_request(&osd->o_requests, req); 11335aea3dcdSIlya Dryomov put_osd(osd); 11345aea3dcdSIlya Dryomov 11355aea3dcdSIlya Dryomov if (!osd_homeless(osd)) 11365aea3dcdSIlya Dryomov maybe_move_osd_to_lru(osd); 11375aea3dcdSIlya Dryomov else 11385aea3dcdSIlya Dryomov atomic_dec(&osd->o_osdc->num_homeless); 11393d14c5d2SYehuda Sadeh } 11403d14c5d2SYehuda Sadeh 11415aea3dcdSIlya Dryomov static void __register_linger_request(struct ceph_osd *osd, 1142a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1143a40c4f10SYehuda Sadeh { 1144af593064SIlya Dryomov dout("%s %p tid %llu\n", __func__, req, req->r_tid); 1145af593064SIlya Dryomov WARN_ON(!req->r_linger); 1146af593064SIlya Dryomov 114796e4dac6SAlex Elder ceph_osdc_get_request(req); 11485aea3dcdSIlya Dryomov list_add_tail(&req->r_linger_item, &osd->o_osdc->req_linger); 11495aea3dcdSIlya Dryomov list_add_tail(&req->r_linger_osd_item, &osd->o_linger_requests); 11505aea3dcdSIlya Dryomov __remove_osd_from_lru(osd); 11515aea3dcdSIlya Dryomov req->r_osd = osd; 1152a40c4f10SYehuda Sadeh } 1153a40c4f10SYehuda Sadeh 1154a40c4f10SYehuda Sadeh static void __unregister_linger_request(struct ceph_osd_client *osdc, 1155a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1156a40c4f10SYehuda Sadeh { 1157af593064SIlya Dryomov WARN_ON(!req->r_linger); 1158af593064SIlya Dryomov 1159af593064SIlya Dryomov if (list_empty(&req->r_linger_item)) { 1160af593064SIlya Dryomov dout("%s %p tid %llu not registered\n", __func__, req, 1161af593064SIlya Dryomov req->r_tid); 1162af593064SIlya Dryomov return; 1163af593064SIlya Dryomov } 1164af593064SIlya Dryomov 1165af593064SIlya Dryomov dout("%s %p tid %llu\n", __func__, req, req->r_tid); 1166a40c4f10SYehuda Sadeh list_del_init(&req->r_linger_item); 1167af593064SIlya Dryomov 116861c74035SAlex Elder if (req->r_osd) { 11691d0326b1SIlya Dryomov list_del_init(&req->r_linger_osd_item); 11709dd2845cSIlya Dryomov maybe_move_osd_to_lru(req->r_osd); 11715aea3dcdSIlya Dryomov if (RB_EMPTY_ROOT(&req->r_osd->o_requests)) 1172a40c4f10SYehuda Sadeh req->r_osd = NULL; 1173a40c4f10SYehuda Sadeh } 117496e4dac6SAlex Elder ceph_osdc_put_request(req); 1175a40c4f10SYehuda Sadeh } 1176a40c4f10SYehuda Sadeh 1177a40c4f10SYehuda Sadeh void ceph_osdc_set_request_linger(struct ceph_osd_client *osdc, 1178a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1179a40c4f10SYehuda Sadeh { 1180a40c4f10SYehuda Sadeh if (!req->r_linger) { 1181a40c4f10SYehuda Sadeh dout("set_request_linger %p\n", req); 1182a40c4f10SYehuda Sadeh req->r_linger = 1; 1183a40c4f10SYehuda Sadeh } 1184a40c4f10SYehuda Sadeh } 1185a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_set_request_linger); 1186a40c4f10SYehuda Sadeh 118763244fa1SIlya Dryomov static bool __pool_full(struct ceph_pg_pool_info *pi) 118863244fa1SIlya Dryomov { 118963244fa1SIlya Dryomov return pi->flags & CEPH_POOL_FLAG_FULL; 119063244fa1SIlya Dryomov } 119163244fa1SIlya Dryomov 119242c1b124SIlya Dryomov static bool have_pool_full(struct ceph_osd_client *osdc) 119342c1b124SIlya Dryomov { 119442c1b124SIlya Dryomov struct rb_node *n; 119542c1b124SIlya Dryomov 119642c1b124SIlya Dryomov for (n = rb_first(&osdc->osdmap->pg_pools); n; n = rb_next(n)) { 119742c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 119842c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 119942c1b124SIlya Dryomov 120042c1b124SIlya Dryomov if (__pool_full(pi)) 120142c1b124SIlya Dryomov return true; 120242c1b124SIlya Dryomov } 120342c1b124SIlya Dryomov 120442c1b124SIlya Dryomov return false; 120542c1b124SIlya Dryomov } 120642c1b124SIlya Dryomov 12075aea3dcdSIlya Dryomov static bool pool_full(struct ceph_osd_client *osdc, s64 pool_id) 12085aea3dcdSIlya Dryomov { 12095aea3dcdSIlya Dryomov struct ceph_pg_pool_info *pi; 12105aea3dcdSIlya Dryomov 12115aea3dcdSIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, pool_id); 12125aea3dcdSIlya Dryomov if (!pi) 12135aea3dcdSIlya Dryomov return false; 12145aea3dcdSIlya Dryomov 12155aea3dcdSIlya Dryomov return __pool_full(pi); 12165aea3dcdSIlya Dryomov } 12175aea3dcdSIlya Dryomov 12183d14c5d2SYehuda Sadeh /* 1219d29adb34SJosh Durgin * Returns whether a request should be blocked from being sent 1220d29adb34SJosh Durgin * based on the current osdmap and osd_client settings. 1221d29adb34SJosh Durgin */ 122263244fa1SIlya Dryomov static bool target_should_be_paused(struct ceph_osd_client *osdc, 122363244fa1SIlya Dryomov const struct ceph_osd_request_target *t, 122463244fa1SIlya Dryomov struct ceph_pg_pool_info *pi) 122563244fa1SIlya Dryomov { 122663244fa1SIlya Dryomov bool pauserd = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD); 122763244fa1SIlya Dryomov bool pausewr = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR) || 122863244fa1SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 122963244fa1SIlya Dryomov __pool_full(pi); 123063244fa1SIlya Dryomov 123163244fa1SIlya Dryomov WARN_ON(pi->id != t->base_oloc.pool); 123263244fa1SIlya Dryomov return (t->flags & CEPH_OSD_FLAG_READ && pauserd) || 123363244fa1SIlya Dryomov (t->flags & CEPH_OSD_FLAG_WRITE && pausewr); 123463244fa1SIlya Dryomov } 123563244fa1SIlya Dryomov 123663244fa1SIlya Dryomov enum calc_target_result { 123763244fa1SIlya Dryomov CALC_TARGET_NO_ACTION = 0, 123863244fa1SIlya Dryomov CALC_TARGET_NEED_RESEND, 123963244fa1SIlya Dryomov CALC_TARGET_POOL_DNE, 124063244fa1SIlya Dryomov }; 124163244fa1SIlya Dryomov 124263244fa1SIlya Dryomov static enum calc_target_result calc_target(struct ceph_osd_client *osdc, 124363244fa1SIlya Dryomov struct ceph_osd_request_target *t, 124463244fa1SIlya Dryomov u32 *last_force_resend, 124563244fa1SIlya Dryomov bool any_change) 124663244fa1SIlya Dryomov { 124763244fa1SIlya Dryomov struct ceph_pg_pool_info *pi; 124863244fa1SIlya Dryomov struct ceph_pg pgid, last_pgid; 124963244fa1SIlya Dryomov struct ceph_osds up, acting; 125063244fa1SIlya Dryomov bool force_resend = false; 125163244fa1SIlya Dryomov bool need_check_tiering = false; 125263244fa1SIlya Dryomov bool need_resend = false; 125363244fa1SIlya Dryomov bool sort_bitwise = ceph_osdmap_flag(osdc->osdmap, 125463244fa1SIlya Dryomov CEPH_OSDMAP_SORTBITWISE); 125563244fa1SIlya Dryomov enum calc_target_result ct_res; 125663244fa1SIlya Dryomov int ret; 125763244fa1SIlya Dryomov 125863244fa1SIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, t->base_oloc.pool); 125963244fa1SIlya Dryomov if (!pi) { 126063244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 126163244fa1SIlya Dryomov ct_res = CALC_TARGET_POOL_DNE; 126263244fa1SIlya Dryomov goto out; 126363244fa1SIlya Dryomov } 126463244fa1SIlya Dryomov 126563244fa1SIlya Dryomov if (osdc->osdmap->epoch == pi->last_force_request_resend) { 126663244fa1SIlya Dryomov if (last_force_resend && 126763244fa1SIlya Dryomov *last_force_resend < pi->last_force_request_resend) { 126863244fa1SIlya Dryomov *last_force_resend = pi->last_force_request_resend; 126963244fa1SIlya Dryomov force_resend = true; 127063244fa1SIlya Dryomov } else if (!last_force_resend) { 127163244fa1SIlya Dryomov force_resend = true; 127263244fa1SIlya Dryomov } 127363244fa1SIlya Dryomov } 127463244fa1SIlya Dryomov if (ceph_oid_empty(&t->target_oid) || force_resend) { 127563244fa1SIlya Dryomov ceph_oid_copy(&t->target_oid, &t->base_oid); 127663244fa1SIlya Dryomov need_check_tiering = true; 127763244fa1SIlya Dryomov } 127863244fa1SIlya Dryomov if (ceph_oloc_empty(&t->target_oloc) || force_resend) { 127963244fa1SIlya Dryomov ceph_oloc_copy(&t->target_oloc, &t->base_oloc); 128063244fa1SIlya Dryomov need_check_tiering = true; 128163244fa1SIlya Dryomov } 128263244fa1SIlya Dryomov 128363244fa1SIlya Dryomov if (need_check_tiering && 128463244fa1SIlya Dryomov (t->flags & CEPH_OSD_FLAG_IGNORE_OVERLAY) == 0) { 128563244fa1SIlya Dryomov if (t->flags & CEPH_OSD_FLAG_READ && pi->read_tier >= 0) 128663244fa1SIlya Dryomov t->target_oloc.pool = pi->read_tier; 128763244fa1SIlya Dryomov if (t->flags & CEPH_OSD_FLAG_WRITE && pi->write_tier >= 0) 128863244fa1SIlya Dryomov t->target_oloc.pool = pi->write_tier; 128963244fa1SIlya Dryomov } 129063244fa1SIlya Dryomov 129163244fa1SIlya Dryomov ret = ceph_object_locator_to_pg(osdc->osdmap, &t->target_oid, 129263244fa1SIlya Dryomov &t->target_oloc, &pgid); 129363244fa1SIlya Dryomov if (ret) { 129463244fa1SIlya Dryomov WARN_ON(ret != -ENOENT); 129563244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 129663244fa1SIlya Dryomov ct_res = CALC_TARGET_POOL_DNE; 129763244fa1SIlya Dryomov goto out; 129863244fa1SIlya Dryomov } 129963244fa1SIlya Dryomov last_pgid.pool = pgid.pool; 130063244fa1SIlya Dryomov last_pgid.seed = ceph_stable_mod(pgid.seed, t->pg_num, t->pg_num_mask); 130163244fa1SIlya Dryomov 130263244fa1SIlya Dryomov ceph_pg_to_up_acting_osds(osdc->osdmap, &pgid, &up, &acting); 130363244fa1SIlya Dryomov if (any_change && 130463244fa1SIlya Dryomov ceph_is_new_interval(&t->acting, 130563244fa1SIlya Dryomov &acting, 130663244fa1SIlya Dryomov &t->up, 130763244fa1SIlya Dryomov &up, 130863244fa1SIlya Dryomov t->size, 130963244fa1SIlya Dryomov pi->size, 131063244fa1SIlya Dryomov t->min_size, 131163244fa1SIlya Dryomov pi->min_size, 131263244fa1SIlya Dryomov t->pg_num, 131363244fa1SIlya Dryomov pi->pg_num, 131463244fa1SIlya Dryomov t->sort_bitwise, 131563244fa1SIlya Dryomov sort_bitwise, 131663244fa1SIlya Dryomov &last_pgid)) 131763244fa1SIlya Dryomov force_resend = true; 131863244fa1SIlya Dryomov 131963244fa1SIlya Dryomov if (t->paused && !target_should_be_paused(osdc, t, pi)) { 132063244fa1SIlya Dryomov t->paused = false; 132163244fa1SIlya Dryomov need_resend = true; 132263244fa1SIlya Dryomov } 132363244fa1SIlya Dryomov 132463244fa1SIlya Dryomov if (ceph_pg_compare(&t->pgid, &pgid) || 132563244fa1SIlya Dryomov ceph_osds_changed(&t->acting, &acting, any_change) || 132663244fa1SIlya Dryomov force_resend) { 132763244fa1SIlya Dryomov t->pgid = pgid; /* struct */ 132863244fa1SIlya Dryomov ceph_osds_copy(&t->acting, &acting); 132963244fa1SIlya Dryomov ceph_osds_copy(&t->up, &up); 133063244fa1SIlya Dryomov t->size = pi->size; 133163244fa1SIlya Dryomov t->min_size = pi->min_size; 133263244fa1SIlya Dryomov t->pg_num = pi->pg_num; 133363244fa1SIlya Dryomov t->pg_num_mask = pi->pg_num_mask; 133463244fa1SIlya Dryomov t->sort_bitwise = sort_bitwise; 133563244fa1SIlya Dryomov 133663244fa1SIlya Dryomov t->osd = acting.primary; 133763244fa1SIlya Dryomov need_resend = true; 133863244fa1SIlya Dryomov } 133963244fa1SIlya Dryomov 134063244fa1SIlya Dryomov ct_res = need_resend ? CALC_TARGET_NEED_RESEND : CALC_TARGET_NO_ACTION; 134163244fa1SIlya Dryomov out: 134263244fa1SIlya Dryomov dout("%s t %p -> ct_res %d osd %d\n", __func__, t, ct_res, t->osd); 134363244fa1SIlya Dryomov return ct_res; 134463244fa1SIlya Dryomov } 134563244fa1SIlya Dryomov 1346bb873b53SIlya Dryomov static void setup_request_data(struct ceph_osd_request *req, 1347bb873b53SIlya Dryomov struct ceph_msg *msg) 13483d14c5d2SYehuda Sadeh { 1349bb873b53SIlya Dryomov u32 data_len = 0; 1350bb873b53SIlya Dryomov int i; 13513d14c5d2SYehuda Sadeh 1352bb873b53SIlya Dryomov if (!list_empty(&msg->data)) 1353bb873b53SIlya Dryomov return; 13543d14c5d2SYehuda Sadeh 1355bb873b53SIlya Dryomov WARN_ON(msg->data_length); 1356bb873b53SIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 1357bb873b53SIlya Dryomov struct ceph_osd_req_op *op = &req->r_ops[i]; 1358bb873b53SIlya Dryomov 1359bb873b53SIlya Dryomov switch (op->op) { 1360bb873b53SIlya Dryomov /* request */ 1361bb873b53SIlya Dryomov case CEPH_OSD_OP_WRITE: 1362bb873b53SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 1363bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->extent.length); 1364bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->extent.osd_data); 1365bb873b53SIlya Dryomov break; 1366bb873b53SIlya Dryomov case CEPH_OSD_OP_SETXATTR: 1367bb873b53SIlya Dryomov case CEPH_OSD_OP_CMPXATTR: 1368bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->xattr.name_len + 1369bb873b53SIlya Dryomov op->xattr.value_len); 1370bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->xattr.osd_data); 1371bb873b53SIlya Dryomov break; 1372bb873b53SIlya Dryomov 1373bb873b53SIlya Dryomov /* reply */ 1374bb873b53SIlya Dryomov case CEPH_OSD_OP_STAT: 1375bb873b53SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 1376bb873b53SIlya Dryomov &op->raw_data_in); 1377bb873b53SIlya Dryomov break; 1378bb873b53SIlya Dryomov case CEPH_OSD_OP_READ: 1379bb873b53SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 1380bb873b53SIlya Dryomov &op->extent.osd_data); 1381bb873b53SIlya Dryomov break; 1382bb873b53SIlya Dryomov 1383bb873b53SIlya Dryomov /* both */ 1384bb873b53SIlya Dryomov case CEPH_OSD_OP_CALL: 1385bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->cls.class_len + 1386bb873b53SIlya Dryomov op->cls.method_len + 1387bb873b53SIlya Dryomov op->cls.indata_len); 1388bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->cls.request_info); 1389bb873b53SIlya Dryomov /* optional, can be NONE */ 1390bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->cls.request_data); 1391bb873b53SIlya Dryomov /* optional, can be NONE */ 1392bb873b53SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 1393bb873b53SIlya Dryomov &op->cls.response_data); 1394bb873b53SIlya Dryomov break; 1395bb873b53SIlya Dryomov } 1396bb873b53SIlya Dryomov 1397bb873b53SIlya Dryomov data_len += op->indata_len; 1398bb873b53SIlya Dryomov } 1399bb873b53SIlya Dryomov 1400bb873b53SIlya Dryomov WARN_ON(data_len != msg->data_length); 1401bb873b53SIlya Dryomov } 1402bb873b53SIlya Dryomov 1403bb873b53SIlya Dryomov static void encode_request(struct ceph_osd_request *req, struct ceph_msg *msg) 1404bb873b53SIlya Dryomov { 1405bb873b53SIlya Dryomov void *p = msg->front.iov_base; 1406bb873b53SIlya Dryomov void *const end = p + msg->front_alloc_len; 1407bb873b53SIlya Dryomov u32 data_len = 0; 1408bb873b53SIlya Dryomov int i; 1409bb873b53SIlya Dryomov 1410bb873b53SIlya Dryomov if (req->r_flags & CEPH_OSD_FLAG_WRITE) { 1411bb873b53SIlya Dryomov /* snapshots aren't writeable */ 1412bb873b53SIlya Dryomov WARN_ON(req->r_snapid != CEPH_NOSNAP); 1413bb873b53SIlya Dryomov } else { 1414bb873b53SIlya Dryomov WARN_ON(req->r_mtime.tv_sec || req->r_mtime.tv_nsec || 1415bb873b53SIlya Dryomov req->r_data_offset || req->r_snapc); 1416bb873b53SIlya Dryomov } 1417bb873b53SIlya Dryomov 1418bb873b53SIlya Dryomov setup_request_data(req, msg); 1419bb873b53SIlya Dryomov 1420bb873b53SIlya Dryomov ceph_encode_32(&p, 1); /* client_inc, always 1 */ 1421bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_osdc->osdmap->epoch); 1422bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_flags); 1423bb873b53SIlya Dryomov ceph_encode_timespec(p, &req->r_mtime); 1424bb873b53SIlya Dryomov p += sizeof(struct ceph_timespec); 1425bb873b53SIlya Dryomov /* aka reassert_version */ 1426bb873b53SIlya Dryomov memcpy(p, &req->r_replay_version, sizeof(req->r_replay_version)); 1427bb873b53SIlya Dryomov p += sizeof(req->r_replay_version); 1428bb873b53SIlya Dryomov 1429bb873b53SIlya Dryomov /* oloc */ 1430bb873b53SIlya Dryomov ceph_encode_8(&p, 4); 1431bb873b53SIlya Dryomov ceph_encode_8(&p, 4); 1432bb873b53SIlya Dryomov ceph_encode_32(&p, 8 + 4 + 4); 1433bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_t.target_oloc.pool); 1434bb873b53SIlya Dryomov ceph_encode_32(&p, -1); /* preferred */ 1435bb873b53SIlya Dryomov ceph_encode_32(&p, 0); /* key len */ 1436bb873b53SIlya Dryomov 1437bb873b53SIlya Dryomov /* pgid */ 1438bb873b53SIlya Dryomov ceph_encode_8(&p, 1); 1439a66dd383SIlya Dryomov ceph_encode_64(&p, req->r_t.pgid.pool); 1440a66dd383SIlya Dryomov ceph_encode_32(&p, req->r_t.pgid.seed); 1441bb873b53SIlya Dryomov ceph_encode_32(&p, -1); /* preferred */ 14422169aea6SSage Weil 1443bb873b53SIlya Dryomov /* oid */ 1444bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_t.target_oid.name_len); 1445bb873b53SIlya Dryomov memcpy(p, req->r_t.target_oid.name, req->r_t.target_oid.name_len); 1446bb873b53SIlya Dryomov p += req->r_t.target_oid.name_len; 1447bb873b53SIlya Dryomov 1448bb873b53SIlya Dryomov /* ops, can imply data */ 1449bb873b53SIlya Dryomov ceph_encode_16(&p, req->r_num_ops); 1450bb873b53SIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 1451bb873b53SIlya Dryomov data_len += osd_req_encode_op(p, &req->r_ops[i]); 1452bb873b53SIlya Dryomov p += sizeof(struct ceph_osd_op); 1453bb873b53SIlya Dryomov } 1454bb873b53SIlya Dryomov 1455bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapid); /* snapid */ 1456bb873b53SIlya Dryomov if (req->r_snapc) { 1457bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapc->seq); 1458bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_snapc->num_snaps); 1459bb873b53SIlya Dryomov for (i = 0; i < req->r_snapc->num_snaps; i++) 1460bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapc->snaps[i]); 1461bb873b53SIlya Dryomov } else { 1462bb873b53SIlya Dryomov ceph_encode_64(&p, 0); /* snap_seq */ 1463bb873b53SIlya Dryomov ceph_encode_32(&p, 0); /* snaps len */ 1464bb873b53SIlya Dryomov } 1465bb873b53SIlya Dryomov 1466bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_attempts); /* retry_attempt */ 1467bb873b53SIlya Dryomov 1468bb873b53SIlya Dryomov BUG_ON(p > end); 1469bb873b53SIlya Dryomov msg->front.iov_len = p - msg->front.iov_base; 1470bb873b53SIlya Dryomov msg->hdr.version = cpu_to_le16(4); /* MOSDOp v4 */ 1471bb873b53SIlya Dryomov msg->hdr.front_len = cpu_to_le32(msg->front.iov_len); 1472bb873b53SIlya Dryomov msg->hdr.data_len = cpu_to_le32(data_len); 1473bb873b53SIlya Dryomov /* 1474bb873b53SIlya Dryomov * The header "data_off" is a hint to the receiver allowing it 1475bb873b53SIlya Dryomov * to align received data into its buffers such that there's no 1476bb873b53SIlya Dryomov * need to re-copy it before writing it to disk (direct I/O). 1477bb873b53SIlya Dryomov */ 1478bb873b53SIlya Dryomov msg->hdr.data_off = cpu_to_le16(req->r_data_offset); 1479bb873b53SIlya Dryomov 1480bb873b53SIlya Dryomov dout("%s req %p oid %*pE oid_len %d front %zu data %u\n", __func__, 1481bb873b53SIlya Dryomov req, req->r_t.target_oid.name_len, req->r_t.target_oid.name, 1482bb873b53SIlya Dryomov req->r_t.target_oid.name_len, msg->front.iov_len, data_len); 1483bb873b53SIlya Dryomov } 1484bb873b53SIlya Dryomov 1485bb873b53SIlya Dryomov /* 1486bb873b53SIlya Dryomov * @req has to be assigned a tid and registered. 1487bb873b53SIlya Dryomov */ 1488bb873b53SIlya Dryomov static void send_request(struct ceph_osd_request *req) 1489bb873b53SIlya Dryomov { 1490bb873b53SIlya Dryomov struct ceph_osd *osd = req->r_osd; 1491bb873b53SIlya Dryomov 14925aea3dcdSIlya Dryomov verify_osd_locked(osd); 1493bb873b53SIlya Dryomov WARN_ON(osd->o_osd != req->r_t.osd); 1494bb873b53SIlya Dryomov 14955aea3dcdSIlya Dryomov /* 14965aea3dcdSIlya Dryomov * We may have a previously queued request message hanging 14975aea3dcdSIlya Dryomov * around. Cancel it to avoid corrupting the msgr. 14985aea3dcdSIlya Dryomov */ 14995aea3dcdSIlya Dryomov if (req->r_sent) 15005aea3dcdSIlya Dryomov ceph_msg_revoke(req->r_request); 15015aea3dcdSIlya Dryomov 1502bb873b53SIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_KNOWN_REDIR; 1503bb873b53SIlya Dryomov if (req->r_attempts) 1504bb873b53SIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_RETRY; 1505bb873b53SIlya Dryomov else 1506bb873b53SIlya Dryomov WARN_ON(req->r_flags & CEPH_OSD_FLAG_RETRY); 1507bb873b53SIlya Dryomov 1508bb873b53SIlya Dryomov encode_request(req, req->r_request); 1509bb873b53SIlya Dryomov 1510bb873b53SIlya Dryomov dout("%s req %p tid %llu to pg %llu.%x osd%d flags 0x%x attempt %d\n", 1511bb873b53SIlya Dryomov __func__, req, req->r_tid, req->r_t.pgid.pool, req->r_t.pgid.seed, 1512bb873b53SIlya Dryomov req->r_t.osd, req->r_flags, req->r_attempts); 1513bb873b53SIlya Dryomov 1514bb873b53SIlya Dryomov req->r_t.paused = false; 15153d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 1516bb873b53SIlya Dryomov req->r_attempts++; 15173d14c5d2SYehuda Sadeh 1518bb873b53SIlya Dryomov req->r_sent = osd->o_incarnation; 1519bb873b53SIlya Dryomov req->r_request->hdr.tid = cpu_to_le64(req->r_tid); 1520bb873b53SIlya Dryomov ceph_con_send(&osd->o_con, ceph_msg_get(req->r_request)); 15213d14c5d2SYehuda Sadeh } 15223d14c5d2SYehuda Sadeh 152342c1b124SIlya Dryomov static void maybe_request_map(struct ceph_osd_client *osdc) 152442c1b124SIlya Dryomov { 152542c1b124SIlya Dryomov bool continuous = false; 152642c1b124SIlya Dryomov 15275aea3dcdSIlya Dryomov verify_osdc_locked(osdc); 152842c1b124SIlya Dryomov WARN_ON(!osdc->osdmap->epoch); 152942c1b124SIlya Dryomov 153042c1b124SIlya Dryomov if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 153142c1b124SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD) || 153242c1b124SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR)) { 153342c1b124SIlya Dryomov dout("%s osdc %p continuous\n", __func__, osdc); 153442c1b124SIlya Dryomov continuous = true; 153542c1b124SIlya Dryomov } else { 153642c1b124SIlya Dryomov dout("%s osdc %p onetime\n", __func__, osdc); 153742c1b124SIlya Dryomov } 153842c1b124SIlya Dryomov 153942c1b124SIlya Dryomov if (ceph_monc_want_map(&osdc->client->monc, CEPH_SUB_OSDMAP, 154042c1b124SIlya Dryomov osdc->osdmap->epoch + 1, continuous)) 154142c1b124SIlya Dryomov ceph_monc_renew_subs(&osdc->client->monc); 154242c1b124SIlya Dryomov } 154342c1b124SIlya Dryomov 15445aea3dcdSIlya Dryomov static void __submit_request(struct ceph_osd_request *req, bool wrlocked) 15450bbfdfe8SIlya Dryomov { 15465aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 15475aea3dcdSIlya Dryomov struct ceph_osd *osd; 15485aea3dcdSIlya Dryomov bool need_send = false; 15495aea3dcdSIlya Dryomov bool promoted = false; 15500bbfdfe8SIlya Dryomov 15515aea3dcdSIlya Dryomov WARN_ON(req->r_tid || req->r_got_reply); 15525aea3dcdSIlya Dryomov dout("%s req %p wrlocked %d\n", __func__, req, wrlocked); 15535aea3dcdSIlya Dryomov 15545aea3dcdSIlya Dryomov again: 15555aea3dcdSIlya Dryomov calc_target(osdc, &req->r_t, &req->r_last_force_resend, false); 15565aea3dcdSIlya Dryomov osd = lookup_create_osd(osdc, req->r_t.osd, wrlocked); 15575aea3dcdSIlya Dryomov if (IS_ERR(osd)) { 15585aea3dcdSIlya Dryomov WARN_ON(PTR_ERR(osd) != -EAGAIN || wrlocked); 15595aea3dcdSIlya Dryomov goto promote; 15605aea3dcdSIlya Dryomov } 15615aea3dcdSIlya Dryomov 15625aea3dcdSIlya Dryomov if ((req->r_flags & CEPH_OSD_FLAG_WRITE) && 15635aea3dcdSIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR)) { 15645aea3dcdSIlya Dryomov dout("req %p pausewr\n", req); 15655aea3dcdSIlya Dryomov req->r_t.paused = true; 15665aea3dcdSIlya Dryomov maybe_request_map(osdc); 15675aea3dcdSIlya Dryomov } else if ((req->r_flags & CEPH_OSD_FLAG_READ) && 15685aea3dcdSIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD)) { 15695aea3dcdSIlya Dryomov dout("req %p pauserd\n", req); 15705aea3dcdSIlya Dryomov req->r_t.paused = true; 15715aea3dcdSIlya Dryomov maybe_request_map(osdc); 15725aea3dcdSIlya Dryomov } else if ((req->r_flags & CEPH_OSD_FLAG_WRITE) && 15735aea3dcdSIlya Dryomov !(req->r_flags & (CEPH_OSD_FLAG_FULL_TRY | 15745aea3dcdSIlya Dryomov CEPH_OSD_FLAG_FULL_FORCE)) && 15755aea3dcdSIlya Dryomov (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 15765aea3dcdSIlya Dryomov pool_full(osdc, req->r_t.base_oloc.pool))) { 15775aea3dcdSIlya Dryomov dout("req %p full/pool_full\n", req); 15785aea3dcdSIlya Dryomov pr_warn_ratelimited("FULL or reached pool quota\n"); 15795aea3dcdSIlya Dryomov req->r_t.paused = true; 15805aea3dcdSIlya Dryomov maybe_request_map(osdc); 15815aea3dcdSIlya Dryomov } else if (!osd_homeless(osd)) { 15825aea3dcdSIlya Dryomov need_send = true; 15830bbfdfe8SIlya Dryomov } else { 15845aea3dcdSIlya Dryomov maybe_request_map(osdc); 15850bbfdfe8SIlya Dryomov } 15860bbfdfe8SIlya Dryomov 15875aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 15885aea3dcdSIlya Dryomov /* 15895aea3dcdSIlya Dryomov * Assign the tid atomically with send_request() to protect 15905aea3dcdSIlya Dryomov * multiple writes to the same object from racing with each 15915aea3dcdSIlya Dryomov * other, resulting in out of order ops on the OSDs. 15925aea3dcdSIlya Dryomov */ 15935aea3dcdSIlya Dryomov req->r_tid = atomic64_inc_return(&osdc->last_tid); 15945aea3dcdSIlya Dryomov link_request(osd, req); 15955aea3dcdSIlya Dryomov if (need_send) 15965aea3dcdSIlya Dryomov send_request(req); 15975aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 15985aea3dcdSIlya Dryomov 15995aea3dcdSIlya Dryomov if (promoted) 16005aea3dcdSIlya Dryomov downgrade_write(&osdc->lock); 16015aea3dcdSIlya Dryomov return; 16025aea3dcdSIlya Dryomov 16035aea3dcdSIlya Dryomov promote: 16045aea3dcdSIlya Dryomov up_read(&osdc->lock); 16055aea3dcdSIlya Dryomov down_write(&osdc->lock); 16065aea3dcdSIlya Dryomov wrlocked = true; 16075aea3dcdSIlya Dryomov promoted = true; 16085aea3dcdSIlya Dryomov goto again; 16090bbfdfe8SIlya Dryomov } 16100bbfdfe8SIlya Dryomov 16115aea3dcdSIlya Dryomov static void account_request(struct ceph_osd_request *req) 16125aea3dcdSIlya Dryomov { 16135aea3dcdSIlya Dryomov unsigned int mask = CEPH_OSD_FLAG_ACK | CEPH_OSD_FLAG_ONDISK; 16145aea3dcdSIlya Dryomov 16155aea3dcdSIlya Dryomov if (req->r_flags & CEPH_OSD_FLAG_READ) { 16165aea3dcdSIlya Dryomov WARN_ON(req->r_flags & mask); 16175aea3dcdSIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_ACK; 16185aea3dcdSIlya Dryomov } else if (req->r_flags & CEPH_OSD_FLAG_WRITE) 16195aea3dcdSIlya Dryomov WARN_ON(!(req->r_flags & mask)); 16205aea3dcdSIlya Dryomov else 16215aea3dcdSIlya Dryomov WARN_ON(1); 16225aea3dcdSIlya Dryomov 16235aea3dcdSIlya Dryomov WARN_ON(req->r_unsafe_callback && (req->r_flags & mask) != mask); 16245aea3dcdSIlya Dryomov atomic_inc(&req->r_osdc->num_requests); 16255aea3dcdSIlya Dryomov } 16265aea3dcdSIlya Dryomov 16275aea3dcdSIlya Dryomov static void submit_request(struct ceph_osd_request *req, bool wrlocked) 16285aea3dcdSIlya Dryomov { 16295aea3dcdSIlya Dryomov ceph_osdc_get_request(req); 16305aea3dcdSIlya Dryomov account_request(req); 16315aea3dcdSIlya Dryomov __submit_request(req, wrlocked); 16325aea3dcdSIlya Dryomov } 16335aea3dcdSIlya Dryomov 16345aea3dcdSIlya Dryomov static void __finish_request(struct ceph_osd_request *req) 16355aea3dcdSIlya Dryomov { 16365aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 16375aea3dcdSIlya Dryomov struct ceph_osd *osd = req->r_osd; 16385aea3dcdSIlya Dryomov 16395aea3dcdSIlya Dryomov verify_osd_locked(osd); 16405aea3dcdSIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 16415aea3dcdSIlya Dryomov 16425aea3dcdSIlya Dryomov unlink_request(osd, req); 16435aea3dcdSIlya Dryomov atomic_dec(&osdc->num_requests); 16445aea3dcdSIlya Dryomov 16455aea3dcdSIlya Dryomov /* 16465aea3dcdSIlya Dryomov * If an OSD has failed or returned and a request has been sent 16475aea3dcdSIlya Dryomov * twice, it's possible to get a reply and end up here while the 16485aea3dcdSIlya Dryomov * request message is queued for delivery. We will ignore the 16495aea3dcdSIlya Dryomov * reply, so not a big deal, but better to try and catch it. 16505aea3dcdSIlya Dryomov */ 16515aea3dcdSIlya Dryomov ceph_msg_revoke(req->r_request); 16525aea3dcdSIlya Dryomov ceph_msg_revoke_incoming(req->r_reply); 16535aea3dcdSIlya Dryomov } 16545aea3dcdSIlya Dryomov 16555aea3dcdSIlya Dryomov static void finish_request(struct ceph_osd_request *req) 16565aea3dcdSIlya Dryomov { 16575aea3dcdSIlya Dryomov __finish_request(req); 16585aea3dcdSIlya Dryomov ceph_osdc_put_request(req); 16590bbfdfe8SIlya Dryomov } 16600bbfdfe8SIlya Dryomov 1661fe5da05eSIlya Dryomov static void __complete_request(struct ceph_osd_request *req) 1662fe5da05eSIlya Dryomov { 1663fe5da05eSIlya Dryomov if (req->r_callback) 1664fe5da05eSIlya Dryomov req->r_callback(req); 1665fe5da05eSIlya Dryomov else 1666fe5da05eSIlya Dryomov complete_all(&req->r_completion); 1667fe5da05eSIlya Dryomov } 1668fe5da05eSIlya Dryomov 16695aea3dcdSIlya Dryomov static void cancel_request(struct ceph_osd_request *req) 16705aea3dcdSIlya Dryomov { 16715aea3dcdSIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 16725aea3dcdSIlya Dryomov 16735aea3dcdSIlya Dryomov finish_request(req); 16745aea3dcdSIlya Dryomov } 16755aea3dcdSIlya Dryomov 16760bbfdfe8SIlya Dryomov /* 1677fbca9635SIlya Dryomov * Timeout callback, called every N seconds. When 1 or more OSD 1678fbca9635SIlya Dryomov * requests has been active for more than N seconds, we send a keepalive 1679fbca9635SIlya Dryomov * (tag + timestamp) to its OSD to ensure any communications channel 1680fbca9635SIlya Dryomov * reset is detected. 16813d14c5d2SYehuda Sadeh */ 16823d14c5d2SYehuda Sadeh static void handle_timeout(struct work_struct *work) 16833d14c5d2SYehuda Sadeh { 16843d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 16853d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, timeout_work.work); 1686a319bf56SIlya Dryomov struct ceph_options *opts = osdc->client->options; 16875aea3dcdSIlya Dryomov unsigned long cutoff = jiffies - opts->osd_keepalive_timeout; 16885aea3dcdSIlya Dryomov LIST_HEAD(slow_osds); 16895aea3dcdSIlya Dryomov struct rb_node *n, *p; 16903d14c5d2SYehuda Sadeh 16915aea3dcdSIlya Dryomov dout("%s osdc %p\n", __func__, osdc); 16925aea3dcdSIlya Dryomov down_write(&osdc->lock); 16933d14c5d2SYehuda Sadeh 16943d14c5d2SYehuda Sadeh /* 16953d14c5d2SYehuda Sadeh * ping osds that are a bit slow. this ensures that if there 16963d14c5d2SYehuda Sadeh * is a break in the TCP connection we will notice, and reopen 16973d14c5d2SYehuda Sadeh * a connection with that osd (from the fault callback). 16983d14c5d2SYehuda Sadeh */ 16995aea3dcdSIlya Dryomov for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { 17005aea3dcdSIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 17015aea3dcdSIlya Dryomov bool found = false; 17023d14c5d2SYehuda Sadeh 17035aea3dcdSIlya Dryomov for (p = rb_first(&osd->o_requests); p; p = rb_next(p)) { 17045aea3dcdSIlya Dryomov struct ceph_osd_request *req = 17055aea3dcdSIlya Dryomov rb_entry(p, struct ceph_osd_request, r_node); 17065aea3dcdSIlya Dryomov 17075aea3dcdSIlya Dryomov if (time_before(req->r_stamp, cutoff)) { 17085aea3dcdSIlya Dryomov dout(" req %p tid %llu on osd%d is laggy\n", 17095aea3dcdSIlya Dryomov req, req->r_tid, osd->o_osd); 17105aea3dcdSIlya Dryomov found = true; 17115aea3dcdSIlya Dryomov } 17125aea3dcdSIlya Dryomov } 17135aea3dcdSIlya Dryomov 17145aea3dcdSIlya Dryomov if (found) 17153d14c5d2SYehuda Sadeh list_move_tail(&osd->o_keepalive_item, &slow_osds); 17163d14c5d2SYehuda Sadeh } 17175aea3dcdSIlya Dryomov 17185aea3dcdSIlya Dryomov if (atomic_read(&osdc->num_homeless) || !list_empty(&slow_osds)) 17195aea3dcdSIlya Dryomov maybe_request_map(osdc); 17205aea3dcdSIlya Dryomov 17213d14c5d2SYehuda Sadeh while (!list_empty(&slow_osds)) { 17225aea3dcdSIlya Dryomov struct ceph_osd *osd = list_first_entry(&slow_osds, 17235aea3dcdSIlya Dryomov struct ceph_osd, 17243d14c5d2SYehuda Sadeh o_keepalive_item); 17253d14c5d2SYehuda Sadeh list_del_init(&osd->o_keepalive_item); 17263d14c5d2SYehuda Sadeh ceph_con_keepalive(&osd->o_con); 17273d14c5d2SYehuda Sadeh } 17283d14c5d2SYehuda Sadeh 17295aea3dcdSIlya Dryomov up_write(&osdc->lock); 1730fbca9635SIlya Dryomov schedule_delayed_work(&osdc->timeout_work, 1731fbca9635SIlya Dryomov osdc->client->options->osd_keepalive_timeout); 17323d14c5d2SYehuda Sadeh } 17333d14c5d2SYehuda Sadeh 17343d14c5d2SYehuda Sadeh static void handle_osds_timeout(struct work_struct *work) 17353d14c5d2SYehuda Sadeh { 17363d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 17373d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, 17383d14c5d2SYehuda Sadeh osds_timeout_work.work); 1739a319bf56SIlya Dryomov unsigned long delay = osdc->client->options->osd_idle_ttl / 4; 174042a2c09fSIlya Dryomov struct ceph_osd *osd, *nosd; 17413d14c5d2SYehuda Sadeh 174242a2c09fSIlya Dryomov dout("%s osdc %p\n", __func__, osdc); 17435aea3dcdSIlya Dryomov down_write(&osdc->lock); 174442a2c09fSIlya Dryomov list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { 174542a2c09fSIlya Dryomov if (time_before(jiffies, osd->lru_ttl)) 174642a2c09fSIlya Dryomov break; 174742a2c09fSIlya Dryomov 17485aea3dcdSIlya Dryomov WARN_ON(!RB_EMPTY_ROOT(&osd->o_requests)); 17495aea3dcdSIlya Dryomov WARN_ON(!list_empty(&osd->o_linger_requests)); 17505aea3dcdSIlya Dryomov close_osd(osd); 175142a2c09fSIlya Dryomov } 175242a2c09fSIlya Dryomov 17535aea3dcdSIlya Dryomov up_write(&osdc->lock); 17543d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->osds_timeout_work, 17553d14c5d2SYehuda Sadeh round_jiffies_relative(delay)); 17563d14c5d2SYehuda Sadeh } 17573d14c5d2SYehuda Sadeh 1758205ee118SIlya Dryomov static int ceph_oloc_decode(void **p, void *end, 1759205ee118SIlya Dryomov struct ceph_object_locator *oloc) 1760205ee118SIlya Dryomov { 1761205ee118SIlya Dryomov u8 struct_v, struct_cv; 1762205ee118SIlya Dryomov u32 len; 1763205ee118SIlya Dryomov void *struct_end; 1764205ee118SIlya Dryomov int ret = 0; 1765205ee118SIlya Dryomov 1766205ee118SIlya Dryomov ceph_decode_need(p, end, 1 + 1 + 4, e_inval); 1767205ee118SIlya Dryomov struct_v = ceph_decode_8(p); 1768205ee118SIlya Dryomov struct_cv = ceph_decode_8(p); 1769205ee118SIlya Dryomov if (struct_v < 3) { 1770205ee118SIlya Dryomov pr_warn("got v %d < 3 cv %d of ceph_object_locator\n", 1771205ee118SIlya Dryomov struct_v, struct_cv); 1772205ee118SIlya Dryomov goto e_inval; 1773205ee118SIlya Dryomov } 1774205ee118SIlya Dryomov if (struct_cv > 6) { 1775205ee118SIlya Dryomov pr_warn("got v %d cv %d > 6 of ceph_object_locator\n", 1776205ee118SIlya Dryomov struct_v, struct_cv); 1777205ee118SIlya Dryomov goto e_inval; 1778205ee118SIlya Dryomov } 1779205ee118SIlya Dryomov len = ceph_decode_32(p); 1780205ee118SIlya Dryomov ceph_decode_need(p, end, len, e_inval); 1781205ee118SIlya Dryomov struct_end = *p + len; 1782205ee118SIlya Dryomov 1783205ee118SIlya Dryomov oloc->pool = ceph_decode_64(p); 1784205ee118SIlya Dryomov *p += 4; /* skip preferred */ 1785205ee118SIlya Dryomov 1786205ee118SIlya Dryomov len = ceph_decode_32(p); 1787205ee118SIlya Dryomov if (len > 0) { 1788205ee118SIlya Dryomov pr_warn("ceph_object_locator::key is set\n"); 1789205ee118SIlya Dryomov goto e_inval; 1790205ee118SIlya Dryomov } 1791205ee118SIlya Dryomov 1792205ee118SIlya Dryomov if (struct_v >= 5) { 1793205ee118SIlya Dryomov len = ceph_decode_32(p); 1794205ee118SIlya Dryomov if (len > 0) { 1795205ee118SIlya Dryomov pr_warn("ceph_object_locator::nspace is set\n"); 1796205ee118SIlya Dryomov goto e_inval; 1797205ee118SIlya Dryomov } 1798205ee118SIlya Dryomov } 1799205ee118SIlya Dryomov 1800205ee118SIlya Dryomov if (struct_v >= 6) { 1801205ee118SIlya Dryomov s64 hash = ceph_decode_64(p); 1802205ee118SIlya Dryomov if (hash != -1) { 1803205ee118SIlya Dryomov pr_warn("ceph_object_locator::hash is set\n"); 1804205ee118SIlya Dryomov goto e_inval; 1805205ee118SIlya Dryomov } 1806205ee118SIlya Dryomov } 1807205ee118SIlya Dryomov 1808205ee118SIlya Dryomov /* skip the rest */ 1809205ee118SIlya Dryomov *p = struct_end; 1810205ee118SIlya Dryomov out: 1811205ee118SIlya Dryomov return ret; 1812205ee118SIlya Dryomov 1813205ee118SIlya Dryomov e_inval: 1814205ee118SIlya Dryomov ret = -EINVAL; 1815205ee118SIlya Dryomov goto out; 1816205ee118SIlya Dryomov } 1817205ee118SIlya Dryomov 1818205ee118SIlya Dryomov static int ceph_redirect_decode(void **p, void *end, 1819205ee118SIlya Dryomov struct ceph_request_redirect *redir) 1820205ee118SIlya Dryomov { 1821205ee118SIlya Dryomov u8 struct_v, struct_cv; 1822205ee118SIlya Dryomov u32 len; 1823205ee118SIlya Dryomov void *struct_end; 1824205ee118SIlya Dryomov int ret; 1825205ee118SIlya Dryomov 1826205ee118SIlya Dryomov ceph_decode_need(p, end, 1 + 1 + 4, e_inval); 1827205ee118SIlya Dryomov struct_v = ceph_decode_8(p); 1828205ee118SIlya Dryomov struct_cv = ceph_decode_8(p); 1829205ee118SIlya Dryomov if (struct_cv > 1) { 1830205ee118SIlya Dryomov pr_warn("got v %d cv %d > 1 of ceph_request_redirect\n", 1831205ee118SIlya Dryomov struct_v, struct_cv); 1832205ee118SIlya Dryomov goto e_inval; 1833205ee118SIlya Dryomov } 1834205ee118SIlya Dryomov len = ceph_decode_32(p); 1835205ee118SIlya Dryomov ceph_decode_need(p, end, len, e_inval); 1836205ee118SIlya Dryomov struct_end = *p + len; 1837205ee118SIlya Dryomov 1838205ee118SIlya Dryomov ret = ceph_oloc_decode(p, end, &redir->oloc); 1839205ee118SIlya Dryomov if (ret) 1840205ee118SIlya Dryomov goto out; 1841205ee118SIlya Dryomov 1842205ee118SIlya Dryomov len = ceph_decode_32(p); 1843205ee118SIlya Dryomov if (len > 0) { 1844205ee118SIlya Dryomov pr_warn("ceph_request_redirect::object_name is set\n"); 1845205ee118SIlya Dryomov goto e_inval; 1846205ee118SIlya Dryomov } 1847205ee118SIlya Dryomov 1848205ee118SIlya Dryomov len = ceph_decode_32(p); 1849205ee118SIlya Dryomov *p += len; /* skip osd_instructions */ 1850205ee118SIlya Dryomov 1851205ee118SIlya Dryomov /* skip the rest */ 1852205ee118SIlya Dryomov *p = struct_end; 1853205ee118SIlya Dryomov out: 1854205ee118SIlya Dryomov return ret; 1855205ee118SIlya Dryomov 1856205ee118SIlya Dryomov e_inval: 1857205ee118SIlya Dryomov ret = -EINVAL; 1858205ee118SIlya Dryomov goto out; 1859205ee118SIlya Dryomov } 1860205ee118SIlya Dryomov 1861fe5da05eSIlya Dryomov struct MOSDOpReply { 1862fe5da05eSIlya Dryomov struct ceph_pg pgid; 1863fe5da05eSIlya Dryomov u64 flags; 1864fe5da05eSIlya Dryomov int result; 1865fe5da05eSIlya Dryomov u32 epoch; 1866fe5da05eSIlya Dryomov int num_ops; 1867fe5da05eSIlya Dryomov u32 outdata_len[CEPH_OSD_MAX_OPS]; 1868fe5da05eSIlya Dryomov s32 rval[CEPH_OSD_MAX_OPS]; 1869fe5da05eSIlya Dryomov int retry_attempt; 1870fe5da05eSIlya Dryomov struct ceph_eversion replay_version; 1871fe5da05eSIlya Dryomov u64 user_version; 1872fe5da05eSIlya Dryomov struct ceph_request_redirect redirect; 1873fe5da05eSIlya Dryomov }; 187425845472SSage Weil 1875fe5da05eSIlya Dryomov static int decode_MOSDOpReply(const struct ceph_msg *msg, struct MOSDOpReply *m) 18763d14c5d2SYehuda Sadeh { 1877fe5da05eSIlya Dryomov void *p = msg->front.iov_base; 1878fe5da05eSIlya Dryomov void *const end = p + msg->front.iov_len; 1879fe5da05eSIlya Dryomov u16 version = le16_to_cpu(msg->hdr.version); 1880fe5da05eSIlya Dryomov struct ceph_eversion bad_replay_version; 1881b0b31a8fSIlya Dryomov u8 decode_redir; 1882fe5da05eSIlya Dryomov u32 len; 1883fe5da05eSIlya Dryomov int ret; 1884fe5da05eSIlya Dryomov int i; 18853d14c5d2SYehuda Sadeh 1886fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, len, e_inval); 1887fe5da05eSIlya Dryomov ceph_decode_need(&p, end, len, e_inval); 1888fe5da05eSIlya Dryomov p += len; /* skip oid */ 18891b83bef2SSage Weil 1890fe5da05eSIlya Dryomov ret = ceph_decode_pgid(&p, end, &m->pgid); 1891fe5da05eSIlya Dryomov if (ret) 1892fe5da05eSIlya Dryomov return ret; 18931b83bef2SSage Weil 1894fe5da05eSIlya Dryomov ceph_decode_64_safe(&p, end, m->flags, e_inval); 1895fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->result, e_inval); 1896fe5da05eSIlya Dryomov ceph_decode_need(&p, end, sizeof(bad_replay_version), e_inval); 1897fe5da05eSIlya Dryomov memcpy(&bad_replay_version, p, sizeof(bad_replay_version)); 1898fe5da05eSIlya Dryomov p += sizeof(bad_replay_version); 1899fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->epoch, e_inval); 19001b83bef2SSage Weil 1901fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->num_ops, e_inval); 1902fe5da05eSIlya Dryomov if (m->num_ops > ARRAY_SIZE(m->outdata_len)) 1903fe5da05eSIlya Dryomov goto e_inval; 19041b83bef2SSage Weil 1905fe5da05eSIlya Dryomov ceph_decode_need(&p, end, m->num_ops * sizeof(struct ceph_osd_op), 1906fe5da05eSIlya Dryomov e_inval); 1907fe5da05eSIlya Dryomov for (i = 0; i < m->num_ops; i++) { 19081b83bef2SSage Weil struct ceph_osd_op *op = p; 19091b83bef2SSage Weil 1910fe5da05eSIlya Dryomov m->outdata_len[i] = le32_to_cpu(op->payload_len); 19111b83bef2SSage Weil p += sizeof(*op); 19121b83bef2SSage Weil } 1913fe5da05eSIlya Dryomov 1914fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->retry_attempt, e_inval); 1915fe5da05eSIlya Dryomov for (i = 0; i < m->num_ops; i++) 1916fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->rval[i], e_inval); 1917fe5da05eSIlya Dryomov 1918fe5da05eSIlya Dryomov if (version >= 5) { 1919fe5da05eSIlya Dryomov ceph_decode_need(&p, end, sizeof(m->replay_version), e_inval); 1920fe5da05eSIlya Dryomov memcpy(&m->replay_version, p, sizeof(m->replay_version)); 1921fe5da05eSIlya Dryomov p += sizeof(m->replay_version); 1922fe5da05eSIlya Dryomov ceph_decode_64_safe(&p, end, m->user_version, e_inval); 1923fe5da05eSIlya Dryomov } else { 1924fe5da05eSIlya Dryomov m->replay_version = bad_replay_version; /* struct */ 1925fe5da05eSIlya Dryomov m->user_version = le64_to_cpu(m->replay_version.version); 19261b83bef2SSage Weil } 19271b83bef2SSage Weil 1928fe5da05eSIlya Dryomov if (version >= 6) { 1929fe5da05eSIlya Dryomov if (version >= 7) 1930fe5da05eSIlya Dryomov ceph_decode_8_safe(&p, end, decode_redir, e_inval); 1931b0b31a8fSIlya Dryomov else 1932b0b31a8fSIlya Dryomov decode_redir = 1; 1933b0b31a8fSIlya Dryomov } else { 1934b0b31a8fSIlya Dryomov decode_redir = 0; 1935b0b31a8fSIlya Dryomov } 1936b0b31a8fSIlya Dryomov 1937b0b31a8fSIlya Dryomov if (decode_redir) { 1938fe5da05eSIlya Dryomov ret = ceph_redirect_decode(&p, end, &m->redirect); 1939fe5da05eSIlya Dryomov if (ret) 1940fe5da05eSIlya Dryomov return ret; 1941205ee118SIlya Dryomov } else { 1942fe5da05eSIlya Dryomov ceph_oloc_init(&m->redirect.oloc); 1943205ee118SIlya Dryomov } 1944205ee118SIlya Dryomov 1945fe5da05eSIlya Dryomov return 0; 1946205ee118SIlya Dryomov 1947fe5da05eSIlya Dryomov e_inval: 1948fe5da05eSIlya Dryomov return -EINVAL; 1949fe5da05eSIlya Dryomov } 1950fe5da05eSIlya Dryomov 1951fe5da05eSIlya Dryomov /* 1952fe5da05eSIlya Dryomov * We are done with @req if 1953fe5da05eSIlya Dryomov * - @m is a safe reply, or 1954fe5da05eSIlya Dryomov * - @m is an unsafe reply and we didn't want a safe one 1955fe5da05eSIlya Dryomov */ 1956fe5da05eSIlya Dryomov static bool done_request(const struct ceph_osd_request *req, 1957fe5da05eSIlya Dryomov const struct MOSDOpReply *m) 1958fe5da05eSIlya Dryomov { 1959fe5da05eSIlya Dryomov return (m->result < 0 || 1960fe5da05eSIlya Dryomov (m->flags & CEPH_OSD_FLAG_ONDISK) || 1961fe5da05eSIlya Dryomov !(req->r_flags & CEPH_OSD_FLAG_ONDISK)); 1962fe5da05eSIlya Dryomov } 1963fe5da05eSIlya Dryomov 1964fe5da05eSIlya Dryomov /* 1965fe5da05eSIlya Dryomov * handle osd op reply. either call the callback if it is specified, 1966fe5da05eSIlya Dryomov * or do the completion to wake up the waiting thread. 1967fe5da05eSIlya Dryomov * 1968fe5da05eSIlya Dryomov * ->r_unsafe_callback is set? yes no 1969fe5da05eSIlya Dryomov * 1970fe5da05eSIlya Dryomov * first reply is OK (needed r_cb/r_completion, r_cb/r_completion, 1971fe5da05eSIlya Dryomov * any or needed/got safe) r_safe_completion r_safe_completion 1972fe5da05eSIlya Dryomov * 1973fe5da05eSIlya Dryomov * first reply is unsafe r_unsafe_cb(true) (nothing) 1974fe5da05eSIlya Dryomov * 1975fe5da05eSIlya Dryomov * when we get the safe reply r_unsafe_cb(false), r_cb/r_completion, 1976fe5da05eSIlya Dryomov * r_safe_completion r_safe_completion 1977fe5da05eSIlya Dryomov */ 19785aea3dcdSIlya Dryomov static void handle_reply(struct ceph_osd *osd, struct ceph_msg *msg) 1979fe5da05eSIlya Dryomov { 19805aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 1981fe5da05eSIlya Dryomov struct ceph_osd_request *req; 1982fe5da05eSIlya Dryomov struct MOSDOpReply m; 1983fe5da05eSIlya Dryomov u64 tid = le64_to_cpu(msg->hdr.tid); 1984fe5da05eSIlya Dryomov u32 data_len = 0; 1985fe5da05eSIlya Dryomov bool already_acked; 1986fe5da05eSIlya Dryomov int ret; 1987fe5da05eSIlya Dryomov int i; 1988fe5da05eSIlya Dryomov 1989fe5da05eSIlya Dryomov dout("%s msg %p tid %llu\n", __func__, msg, tid); 1990fe5da05eSIlya Dryomov 19915aea3dcdSIlya Dryomov down_read(&osdc->lock); 19925aea3dcdSIlya Dryomov if (!osd_registered(osd)) { 19935aea3dcdSIlya Dryomov dout("%s osd%d unknown\n", __func__, osd->o_osd); 19945aea3dcdSIlya Dryomov goto out_unlock_osdc; 1995fe5da05eSIlya Dryomov } 19965aea3dcdSIlya Dryomov WARN_ON(osd->o_osd != le64_to_cpu(msg->hdr.src.num)); 19975aea3dcdSIlya Dryomov 19985aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 19995aea3dcdSIlya Dryomov req = lookup_request(&osd->o_requests, tid); 20005aea3dcdSIlya Dryomov if (!req) { 20015aea3dcdSIlya Dryomov dout("%s osd%d tid %llu unknown\n", __func__, osd->o_osd, tid); 20025aea3dcdSIlya Dryomov goto out_unlock_session; 20035aea3dcdSIlya Dryomov } 2004fe5da05eSIlya Dryomov 2005fe5da05eSIlya Dryomov ret = decode_MOSDOpReply(msg, &m); 2006fe5da05eSIlya Dryomov if (ret) { 2007fe5da05eSIlya Dryomov pr_err("failed to decode MOSDOpReply for tid %llu: %d\n", 2008fe5da05eSIlya Dryomov req->r_tid, ret); 2009fe5da05eSIlya Dryomov ceph_msg_dump(msg); 2010fe5da05eSIlya Dryomov goto fail_request; 2011fe5da05eSIlya Dryomov } 2012fe5da05eSIlya Dryomov dout("%s req %p tid %llu flags 0x%llx pgid %llu.%x epoch %u attempt %d v %u'%llu uv %llu\n", 2013fe5da05eSIlya Dryomov __func__, req, req->r_tid, m.flags, m.pgid.pool, m.pgid.seed, 2014fe5da05eSIlya Dryomov m.epoch, m.retry_attempt, le32_to_cpu(m.replay_version.epoch), 2015fe5da05eSIlya Dryomov le64_to_cpu(m.replay_version.version), m.user_version); 2016fe5da05eSIlya Dryomov 2017fe5da05eSIlya Dryomov if (m.retry_attempt >= 0) { 2018fe5da05eSIlya Dryomov if (m.retry_attempt != req->r_attempts - 1) { 2019fe5da05eSIlya Dryomov dout("req %p tid %llu retry_attempt %d != %d, ignoring\n", 2020fe5da05eSIlya Dryomov req, req->r_tid, m.retry_attempt, 2021fe5da05eSIlya Dryomov req->r_attempts - 1); 20225aea3dcdSIlya Dryomov goto out_unlock_session; 2023fe5da05eSIlya Dryomov } 2024fe5da05eSIlya Dryomov } else { 2025fe5da05eSIlya Dryomov WARN_ON(1); /* MOSDOpReply v4 is assumed */ 2026fe5da05eSIlya Dryomov } 2027fe5da05eSIlya Dryomov 2028fe5da05eSIlya Dryomov if (!ceph_oloc_empty(&m.redirect.oloc)) { 2029fe5da05eSIlya Dryomov dout("req %p tid %llu redirect pool %lld\n", req, req->r_tid, 2030fe5da05eSIlya Dryomov m.redirect.oloc.pool); 20315aea3dcdSIlya Dryomov unlink_request(osd, req); 20325aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 2033205ee118SIlya Dryomov 2034fe5da05eSIlya Dryomov ceph_oloc_copy(&req->r_t.target_oloc, &m.redirect.oloc); 20355aea3dcdSIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_REDIRECTED; 20365aea3dcdSIlya Dryomov req->r_tid = 0; 20375aea3dcdSIlya Dryomov __submit_request(req, false); 20385aea3dcdSIlya Dryomov goto out_unlock_osdc; 2039205ee118SIlya Dryomov } 2040205ee118SIlya Dryomov 2041fe5da05eSIlya Dryomov if (m.num_ops != req->r_num_ops) { 2042fe5da05eSIlya Dryomov pr_err("num_ops %d != %d for tid %llu\n", m.num_ops, 2043fe5da05eSIlya Dryomov req->r_num_ops, req->r_tid); 2044fe5da05eSIlya Dryomov goto fail_request; 2045fe5da05eSIlya Dryomov } 2046fe5da05eSIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 2047fe5da05eSIlya Dryomov dout(" req %p tid %llu op %d rval %d len %u\n", req, 2048fe5da05eSIlya Dryomov req->r_tid, i, m.rval[i], m.outdata_len[i]); 2049fe5da05eSIlya Dryomov req->r_ops[i].rval = m.rval[i]; 2050fe5da05eSIlya Dryomov req->r_ops[i].outdata_len = m.outdata_len[i]; 2051fe5da05eSIlya Dryomov data_len += m.outdata_len[i]; 2052fe5da05eSIlya Dryomov } 2053fe5da05eSIlya Dryomov if (data_len != le32_to_cpu(msg->hdr.data_len)) { 2054fe5da05eSIlya Dryomov pr_err("sum of lens %u != %u for tid %llu\n", data_len, 2055fe5da05eSIlya Dryomov le32_to_cpu(msg->hdr.data_len), req->r_tid); 2056fe5da05eSIlya Dryomov goto fail_request; 2057fe5da05eSIlya Dryomov } 2058fe5da05eSIlya Dryomov dout("%s req %p tid %llu acked %d result %d data_len %u\n", __func__, 2059fe5da05eSIlya Dryomov req, req->r_tid, req->r_got_reply, m.result, data_len); 20603d14c5d2SYehuda Sadeh 2061fe5da05eSIlya Dryomov already_acked = req->r_got_reply; 2062fe5da05eSIlya Dryomov if (!already_acked) { 2063fe5da05eSIlya Dryomov req->r_result = m.result ?: data_len; 2064fe5da05eSIlya Dryomov req->r_replay_version = m.replay_version; /* struct */ 2065fe5da05eSIlya Dryomov req->r_got_reply = true; 2066fe5da05eSIlya Dryomov } else if (!(m.flags & CEPH_OSD_FLAG_ONDISK)) { 2067fe5da05eSIlya Dryomov dout("req %p tid %llu dup ack\n", req, req->r_tid); 20685aea3dcdSIlya Dryomov goto out_unlock_session; 20693d14c5d2SYehuda Sadeh } 20703d14c5d2SYehuda Sadeh 2071fe5da05eSIlya Dryomov if (done_request(req, &m)) { 20725aea3dcdSIlya Dryomov __finish_request(req); 2073fe5da05eSIlya Dryomov if (req->r_linger) { 2074fe5da05eSIlya Dryomov WARN_ON(req->r_unsafe_callback); 20755aea3dcdSIlya Dryomov __register_linger_request(osd, req); 2076fe5da05eSIlya Dryomov } 2077fe5da05eSIlya Dryomov } 20783d14c5d2SYehuda Sadeh 20795aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 20805aea3dcdSIlya Dryomov up_read(&osdc->lock); 20813d14c5d2SYehuda Sadeh 2082fe5da05eSIlya Dryomov if (done_request(req, &m)) { 2083fe5da05eSIlya Dryomov if (already_acked && req->r_unsafe_callback) { 2084fe5da05eSIlya Dryomov dout("req %p tid %llu safe-cb\n", req, req->r_tid); 208561c5d6bfSYan, Zheng req->r_unsafe_callback(req, false); 2086fe5da05eSIlya Dryomov } else { 2087fe5da05eSIlya Dryomov dout("req %p tid %llu cb\n", req, req->r_tid); 2088fe5da05eSIlya Dryomov __complete_request(req); 208961c5d6bfSYan, Zheng } 2090fe5da05eSIlya Dryomov } else { 2091fe5da05eSIlya Dryomov if (req->r_unsafe_callback) { 2092fe5da05eSIlya Dryomov dout("req %p tid %llu unsafe-cb\n", req, req->r_tid); 2093fe5da05eSIlya Dryomov req->r_unsafe_callback(req, true); 2094fe5da05eSIlya Dryomov } else { 2095fe5da05eSIlya Dryomov WARN_ON(1); 2096fe5da05eSIlya Dryomov } 2097fe5da05eSIlya Dryomov } 2098fe5da05eSIlya Dryomov if (m.flags & CEPH_OSD_FLAG_ONDISK) 2099fe5da05eSIlya Dryomov complete_all(&req->r_safe_completion); 21003d14c5d2SYehuda Sadeh 21013d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 21023d14c5d2SYehuda Sadeh return; 2103fe5da05eSIlya Dryomov 2104fe5da05eSIlya Dryomov fail_request: 2105fe5da05eSIlya Dryomov req->r_result = -EIO; 21065aea3dcdSIlya Dryomov __finish_request(req); 2107fe5da05eSIlya Dryomov __complete_request(req); 2108fe5da05eSIlya Dryomov complete_all(&req->r_safe_completion); 21095aea3dcdSIlya Dryomov out_unlock_session: 21105aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 21115aea3dcdSIlya Dryomov out_unlock_osdc: 21125aea3dcdSIlya Dryomov up_read(&osdc->lock); 21133d14c5d2SYehuda Sadeh } 21143d14c5d2SYehuda Sadeh 211542c1b124SIlya Dryomov static void set_pool_was_full(struct ceph_osd_client *osdc) 211642c1b124SIlya Dryomov { 211742c1b124SIlya Dryomov struct rb_node *n; 211842c1b124SIlya Dryomov 211942c1b124SIlya Dryomov for (n = rb_first(&osdc->osdmap->pg_pools); n; n = rb_next(n)) { 212042c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 212142c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 212242c1b124SIlya Dryomov 212342c1b124SIlya Dryomov pi->was_full = __pool_full(pi); 212442c1b124SIlya Dryomov } 212542c1b124SIlya Dryomov } 212642c1b124SIlya Dryomov 21275aea3dcdSIlya Dryomov static bool pool_cleared_full(struct ceph_osd_client *osdc, s64 pool_id) 21283d14c5d2SYehuda Sadeh { 21295aea3dcdSIlya Dryomov struct ceph_pg_pool_info *pi; 21303d14c5d2SYehuda Sadeh 21315aea3dcdSIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, pool_id); 21325aea3dcdSIlya Dryomov if (!pi) 21335aea3dcdSIlya Dryomov return false; 21343d14c5d2SYehuda Sadeh 21355aea3dcdSIlya Dryomov return pi->was_full && !__pool_full(pi); 21363d14c5d2SYehuda Sadeh } 21373d14c5d2SYehuda Sadeh 21383d14c5d2SYehuda Sadeh /* 21395aea3dcdSIlya Dryomov * Requeue requests whose mapping to an OSD has changed. 21403d14c5d2SYehuda Sadeh */ 21415aea3dcdSIlya Dryomov static void scan_requests(struct ceph_osd *osd, 21425aea3dcdSIlya Dryomov bool force_resend, 21435aea3dcdSIlya Dryomov bool cleared_full, 21445aea3dcdSIlya Dryomov bool check_pool_cleared_full, 21455aea3dcdSIlya Dryomov struct rb_root *need_resend, 21465aea3dcdSIlya Dryomov struct list_head *need_resend_linger) 21473d14c5d2SYehuda Sadeh { 21485aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 21495aea3dcdSIlya Dryomov struct rb_node *n; 21505aea3dcdSIlya Dryomov bool force_resend_writes; 21513d14c5d2SYehuda Sadeh 21525aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; ) { 21535aea3dcdSIlya Dryomov struct ceph_osd_request *req = 21545aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 21555aea3dcdSIlya Dryomov enum calc_target_result ct_res; 2156ab60b16dSAlex Elder 21575aea3dcdSIlya Dryomov n = rb_next(n); /* unlink_request() */ 2158ab60b16dSAlex Elder 21595aea3dcdSIlya Dryomov dout("%s req %p tid %llu\n", __func__, req, req->r_tid); 21605aea3dcdSIlya Dryomov ct_res = calc_target(osdc, &req->r_t, 21615aea3dcdSIlya Dryomov &req->r_last_force_resend, false); 21625aea3dcdSIlya Dryomov switch (ct_res) { 21635aea3dcdSIlya Dryomov case CALC_TARGET_NO_ACTION: 21645aea3dcdSIlya Dryomov force_resend_writes = cleared_full || 21655aea3dcdSIlya Dryomov (check_pool_cleared_full && 21665aea3dcdSIlya Dryomov pool_cleared_full(osdc, req->r_t.base_oloc.pool)); 21675aea3dcdSIlya Dryomov if (!force_resend && 21685aea3dcdSIlya Dryomov (!(req->r_flags & CEPH_OSD_FLAG_WRITE) || 21695aea3dcdSIlya Dryomov !force_resend_writes)) 21705aea3dcdSIlya Dryomov break; 2171a40c4f10SYehuda Sadeh 21725aea3dcdSIlya Dryomov /* fall through */ 21735aea3dcdSIlya Dryomov case CALC_TARGET_NEED_RESEND: 21745aea3dcdSIlya Dryomov unlink_request(osd, req); 21755aea3dcdSIlya Dryomov insert_request(need_resend, req); 21765aea3dcdSIlya Dryomov break; 21775aea3dcdSIlya Dryomov case CALC_TARGET_POOL_DNE: 21785aea3dcdSIlya Dryomov break; 2179a40c4f10SYehuda Sadeh } 21803d14c5d2SYehuda Sadeh } 21813d14c5d2SYehuda Sadeh } 21826f6c7006SSage Weil 218342c1b124SIlya Dryomov static int handle_one_map(struct ceph_osd_client *osdc, 21845aea3dcdSIlya Dryomov void *p, void *end, bool incremental, 21855aea3dcdSIlya Dryomov struct rb_root *need_resend, 21865aea3dcdSIlya Dryomov struct list_head *need_resend_linger) 218742c1b124SIlya Dryomov { 218842c1b124SIlya Dryomov struct ceph_osdmap *newmap; 218942c1b124SIlya Dryomov struct rb_node *n; 219042c1b124SIlya Dryomov bool skipped_map = false; 219142c1b124SIlya Dryomov bool was_full; 219242c1b124SIlya Dryomov 219342c1b124SIlya Dryomov was_full = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL); 219442c1b124SIlya Dryomov set_pool_was_full(osdc); 219542c1b124SIlya Dryomov 219642c1b124SIlya Dryomov if (incremental) 219742c1b124SIlya Dryomov newmap = osdmap_apply_incremental(&p, end, osdc->osdmap); 219842c1b124SIlya Dryomov else 219942c1b124SIlya Dryomov newmap = ceph_osdmap_decode(&p, end); 220042c1b124SIlya Dryomov if (IS_ERR(newmap)) 220142c1b124SIlya Dryomov return PTR_ERR(newmap); 220242c1b124SIlya Dryomov 220342c1b124SIlya Dryomov if (newmap != osdc->osdmap) { 220442c1b124SIlya Dryomov /* 220542c1b124SIlya Dryomov * Preserve ->was_full before destroying the old map. 220642c1b124SIlya Dryomov * For pools that weren't in the old map, ->was_full 220742c1b124SIlya Dryomov * should be false. 220842c1b124SIlya Dryomov */ 220942c1b124SIlya Dryomov for (n = rb_first(&newmap->pg_pools); n; n = rb_next(n)) { 221042c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 221142c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 221242c1b124SIlya Dryomov struct ceph_pg_pool_info *old_pi; 221342c1b124SIlya Dryomov 221442c1b124SIlya Dryomov old_pi = ceph_pg_pool_by_id(osdc->osdmap, pi->id); 221542c1b124SIlya Dryomov if (old_pi) 221642c1b124SIlya Dryomov pi->was_full = old_pi->was_full; 221742c1b124SIlya Dryomov else 221842c1b124SIlya Dryomov WARN_ON(pi->was_full); 221942c1b124SIlya Dryomov } 222042c1b124SIlya Dryomov 222142c1b124SIlya Dryomov if (osdc->osdmap->epoch && 222242c1b124SIlya Dryomov osdc->osdmap->epoch + 1 < newmap->epoch) { 222342c1b124SIlya Dryomov WARN_ON(incremental); 222442c1b124SIlya Dryomov skipped_map = true; 222542c1b124SIlya Dryomov } 222642c1b124SIlya Dryomov 222742c1b124SIlya Dryomov ceph_osdmap_destroy(osdc->osdmap); 222842c1b124SIlya Dryomov osdc->osdmap = newmap; 222942c1b124SIlya Dryomov } 223042c1b124SIlya Dryomov 223142c1b124SIlya Dryomov was_full &= !ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL); 22325aea3dcdSIlya Dryomov scan_requests(&osdc->homeless_osd, skipped_map, was_full, true, 22335aea3dcdSIlya Dryomov need_resend, need_resend_linger); 22345aea3dcdSIlya Dryomov 22355aea3dcdSIlya Dryomov for (n = rb_first(&osdc->osds); n; ) { 22365aea3dcdSIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 22375aea3dcdSIlya Dryomov 22385aea3dcdSIlya Dryomov n = rb_next(n); /* close_osd() */ 22395aea3dcdSIlya Dryomov 22405aea3dcdSIlya Dryomov scan_requests(osd, skipped_map, was_full, true, need_resend, 22415aea3dcdSIlya Dryomov need_resend_linger); 22425aea3dcdSIlya Dryomov if (!ceph_osd_is_up(osdc->osdmap, osd->o_osd) || 22435aea3dcdSIlya Dryomov memcmp(&osd->o_con.peer_addr, 22445aea3dcdSIlya Dryomov ceph_osd_addr(osdc->osdmap, osd->o_osd), 22455aea3dcdSIlya Dryomov sizeof(struct ceph_entity_addr))) 22465aea3dcdSIlya Dryomov close_osd(osd); 22475aea3dcdSIlya Dryomov } 224842c1b124SIlya Dryomov 224942c1b124SIlya Dryomov return 0; 225042c1b124SIlya Dryomov } 22516f6c7006SSage Weil 22525aea3dcdSIlya Dryomov static void kick_requests(struct ceph_osd_client *osdc, 22535aea3dcdSIlya Dryomov struct rb_root *need_resend, 22545aea3dcdSIlya Dryomov struct list_head *need_resend_linger) 22555aea3dcdSIlya Dryomov { 22565aea3dcdSIlya Dryomov struct rb_node *n; 22575aea3dcdSIlya Dryomov 22585aea3dcdSIlya Dryomov for (n = rb_first(need_resend); n; ) { 22595aea3dcdSIlya Dryomov struct ceph_osd_request *req = 22605aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 22615aea3dcdSIlya Dryomov struct ceph_osd *osd; 22625aea3dcdSIlya Dryomov 22635aea3dcdSIlya Dryomov n = rb_next(n); 22645aea3dcdSIlya Dryomov erase_request(need_resend, req); /* before link_request() */ 22655aea3dcdSIlya Dryomov 22665aea3dcdSIlya Dryomov WARN_ON(req->r_osd); 22675aea3dcdSIlya Dryomov calc_target(osdc, &req->r_t, NULL, false); 22685aea3dcdSIlya Dryomov osd = lookup_create_osd(osdc, req->r_t.osd, true); 22695aea3dcdSIlya Dryomov link_request(osd, req); 22705aea3dcdSIlya Dryomov if (!req->r_linger) { 22715aea3dcdSIlya Dryomov if (!osd_homeless(osd) && !req->r_t.paused) 22725aea3dcdSIlya Dryomov send_request(req); 22735aea3dcdSIlya Dryomov } 22745aea3dcdSIlya Dryomov } 22755aea3dcdSIlya Dryomov } 22765aea3dcdSIlya Dryomov 22773d14c5d2SYehuda Sadeh /* 22783d14c5d2SYehuda Sadeh * Process updated osd map. 22793d14c5d2SYehuda Sadeh * 22803d14c5d2SYehuda Sadeh * The message contains any number of incremental and full maps, normally 22813d14c5d2SYehuda Sadeh * indicating some sort of topology change in the cluster. Kick requests 22823d14c5d2SYehuda Sadeh * off to different OSDs as needed. 22833d14c5d2SYehuda Sadeh */ 22843d14c5d2SYehuda Sadeh void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) 22853d14c5d2SYehuda Sadeh { 228642c1b124SIlya Dryomov void *p = msg->front.iov_base; 228742c1b124SIlya Dryomov void *const end = p + msg->front.iov_len; 22883d14c5d2SYehuda Sadeh u32 nr_maps, maplen; 22893d14c5d2SYehuda Sadeh u32 epoch; 22903d14c5d2SYehuda Sadeh struct ceph_fsid fsid; 22915aea3dcdSIlya Dryomov struct rb_root need_resend = RB_ROOT; 22925aea3dcdSIlya Dryomov LIST_HEAD(need_resend_linger); 229342c1b124SIlya Dryomov bool handled_incremental = false; 229442c1b124SIlya Dryomov bool was_pauserd, was_pausewr; 229542c1b124SIlya Dryomov bool pauserd, pausewr; 229642c1b124SIlya Dryomov int err; 22973d14c5d2SYehuda Sadeh 229842c1b124SIlya Dryomov dout("%s have %u\n", __func__, osdc->osdmap->epoch); 22995aea3dcdSIlya Dryomov down_write(&osdc->lock); 23003d14c5d2SYehuda Sadeh 23013d14c5d2SYehuda Sadeh /* verify fsid */ 23023d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, sizeof(fsid), bad); 23033d14c5d2SYehuda Sadeh ceph_decode_copy(&p, &fsid, sizeof(fsid)); 23043d14c5d2SYehuda Sadeh if (ceph_check_fsid(osdc->client, &fsid) < 0) 230542c1b124SIlya Dryomov goto bad; 23063d14c5d2SYehuda Sadeh 230742c1b124SIlya Dryomov was_pauserd = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD); 230842c1b124SIlya Dryomov was_pausewr = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR) || 230942c1b124SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 231042c1b124SIlya Dryomov have_pool_full(osdc); 23119a1ea2dbSJosh Durgin 23123d14c5d2SYehuda Sadeh /* incremental maps */ 23133d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 23143d14c5d2SYehuda Sadeh dout(" %d inc maps\n", nr_maps); 23153d14c5d2SYehuda Sadeh while (nr_maps > 0) { 23163d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 23173d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 23183d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 23193d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 232042c1b124SIlya Dryomov if (osdc->osdmap->epoch && 232142c1b124SIlya Dryomov osdc->osdmap->epoch + 1 == epoch) { 23223d14c5d2SYehuda Sadeh dout("applying incremental map %u len %d\n", 23233d14c5d2SYehuda Sadeh epoch, maplen); 23245aea3dcdSIlya Dryomov err = handle_one_map(osdc, p, p + maplen, true, 23255aea3dcdSIlya Dryomov &need_resend, &need_resend_linger); 232642c1b124SIlya Dryomov if (err) 23273d14c5d2SYehuda Sadeh goto bad; 232842c1b124SIlya Dryomov handled_incremental = true; 23293d14c5d2SYehuda Sadeh } else { 23303d14c5d2SYehuda Sadeh dout("ignoring incremental map %u len %d\n", 23313d14c5d2SYehuda Sadeh epoch, maplen); 23323d14c5d2SYehuda Sadeh } 233342c1b124SIlya Dryomov p += maplen; 23343d14c5d2SYehuda Sadeh nr_maps--; 23353d14c5d2SYehuda Sadeh } 233642c1b124SIlya Dryomov if (handled_incremental) 23373d14c5d2SYehuda Sadeh goto done; 23383d14c5d2SYehuda Sadeh 23393d14c5d2SYehuda Sadeh /* full maps */ 23403d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 23413d14c5d2SYehuda Sadeh dout(" %d full maps\n", nr_maps); 23423d14c5d2SYehuda Sadeh while (nr_maps) { 23433d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 23443d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 23453d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 23463d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 23473d14c5d2SYehuda Sadeh if (nr_maps > 1) { 23483d14c5d2SYehuda Sadeh dout("skipping non-latest full map %u len %d\n", 23493d14c5d2SYehuda Sadeh epoch, maplen); 2350e5253a7bSIlya Dryomov } else if (osdc->osdmap->epoch >= epoch) { 23513d14c5d2SYehuda Sadeh dout("skipping full map %u len %d, " 23523d14c5d2SYehuda Sadeh "older than our %u\n", epoch, maplen, 23533d14c5d2SYehuda Sadeh osdc->osdmap->epoch); 23543d14c5d2SYehuda Sadeh } else { 23553d14c5d2SYehuda Sadeh dout("taking full map %u len %d\n", epoch, maplen); 23565aea3dcdSIlya Dryomov err = handle_one_map(osdc, p, p + maplen, false, 23575aea3dcdSIlya Dryomov &need_resend, &need_resend_linger); 235842c1b124SIlya Dryomov if (err) 23593d14c5d2SYehuda Sadeh goto bad; 23603d14c5d2SYehuda Sadeh } 23613d14c5d2SYehuda Sadeh p += maplen; 23623d14c5d2SYehuda Sadeh nr_maps--; 23633d14c5d2SYehuda Sadeh } 23643d14c5d2SYehuda Sadeh 23653d14c5d2SYehuda Sadeh done: 2366cd634fb6SSage Weil /* 2367cd634fb6SSage Weil * subscribe to subsequent osdmap updates if full to ensure 2368cd634fb6SSage Weil * we find out when we are no longer full and stop returning 2369cd634fb6SSage Weil * ENOSPC. 2370cd634fb6SSage Weil */ 237142c1b124SIlya Dryomov pauserd = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD); 237242c1b124SIlya Dryomov pausewr = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR) || 237342c1b124SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 237442c1b124SIlya Dryomov have_pool_full(osdc); 237542c1b124SIlya Dryomov if (was_pauserd || was_pausewr || pauserd || pausewr) 237642c1b124SIlya Dryomov maybe_request_map(osdc); 2377cd634fb6SSage Weil 23785aea3dcdSIlya Dryomov kick_requests(osdc, &need_resend, &need_resend_linger); 237942c1b124SIlya Dryomov 238042c1b124SIlya Dryomov ceph_monc_got_map(&osdc->client->monc, CEPH_SUB_OSDMAP, 238142c1b124SIlya Dryomov osdc->osdmap->epoch); 23825aea3dcdSIlya Dryomov up_write(&osdc->lock); 23833d14c5d2SYehuda Sadeh wake_up_all(&osdc->client->auth_wq); 23843d14c5d2SYehuda Sadeh return; 23853d14c5d2SYehuda Sadeh 23863d14c5d2SYehuda Sadeh bad: 23873d14c5d2SYehuda Sadeh pr_err("osdc handle_map corrupt msg\n"); 23883d14c5d2SYehuda Sadeh ceph_msg_dump(msg); 23895aea3dcdSIlya Dryomov up_write(&osdc->lock); 23905aea3dcdSIlya Dryomov } 23915aea3dcdSIlya Dryomov 23925aea3dcdSIlya Dryomov /* 23935aea3dcdSIlya Dryomov * Resubmit requests pending on the given osd. 23945aea3dcdSIlya Dryomov */ 23955aea3dcdSIlya Dryomov static void kick_osd_requests(struct ceph_osd *osd) 23965aea3dcdSIlya Dryomov { 23975aea3dcdSIlya Dryomov struct rb_node *n; 23985aea3dcdSIlya Dryomov 23995aea3dcdSIlya Dryomov for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) { 24005aea3dcdSIlya Dryomov struct ceph_osd_request *req = 24015aea3dcdSIlya Dryomov rb_entry(n, struct ceph_osd_request, r_node); 24025aea3dcdSIlya Dryomov 24035aea3dcdSIlya Dryomov if (!req->r_linger) { 24045aea3dcdSIlya Dryomov if (!req->r_t.paused) 24055aea3dcdSIlya Dryomov send_request(req); 24065aea3dcdSIlya Dryomov } 24075aea3dcdSIlya Dryomov } 24085aea3dcdSIlya Dryomov } 24095aea3dcdSIlya Dryomov 24105aea3dcdSIlya Dryomov /* 24115aea3dcdSIlya Dryomov * If the osd connection drops, we need to resubmit all requests. 24125aea3dcdSIlya Dryomov */ 24135aea3dcdSIlya Dryomov static void osd_fault(struct ceph_connection *con) 24145aea3dcdSIlya Dryomov { 24155aea3dcdSIlya Dryomov struct ceph_osd *osd = con->private; 24165aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 24175aea3dcdSIlya Dryomov 24185aea3dcdSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 24195aea3dcdSIlya Dryomov 24205aea3dcdSIlya Dryomov down_write(&osdc->lock); 24215aea3dcdSIlya Dryomov if (!osd_registered(osd)) { 24225aea3dcdSIlya Dryomov dout("%s osd%d unknown\n", __func__, osd->o_osd); 24235aea3dcdSIlya Dryomov goto out_unlock; 24245aea3dcdSIlya Dryomov } 24255aea3dcdSIlya Dryomov 24265aea3dcdSIlya Dryomov if (!reopen_osd(osd)) 24275aea3dcdSIlya Dryomov kick_osd_requests(osd); 24285aea3dcdSIlya Dryomov maybe_request_map(osdc); 24295aea3dcdSIlya Dryomov 24305aea3dcdSIlya Dryomov out_unlock: 24315aea3dcdSIlya Dryomov up_write(&osdc->lock); 24323d14c5d2SYehuda Sadeh } 24333d14c5d2SYehuda Sadeh 24343d14c5d2SYehuda Sadeh /* 2435a40c4f10SYehuda Sadeh * watch/notify callback event infrastructure 2436a40c4f10SYehuda Sadeh * 2437a40c4f10SYehuda Sadeh * These callbacks are used both for watch and notify operations. 2438a40c4f10SYehuda Sadeh */ 2439a40c4f10SYehuda Sadeh static void __release_event(struct kref *kref) 2440a40c4f10SYehuda Sadeh { 2441a40c4f10SYehuda Sadeh struct ceph_osd_event *event = 2442a40c4f10SYehuda Sadeh container_of(kref, struct ceph_osd_event, kref); 2443a40c4f10SYehuda Sadeh 2444a40c4f10SYehuda Sadeh dout("__release_event %p\n", event); 2445a40c4f10SYehuda Sadeh kfree(event); 2446a40c4f10SYehuda Sadeh } 2447a40c4f10SYehuda Sadeh 2448a40c4f10SYehuda Sadeh static void get_event(struct ceph_osd_event *event) 2449a40c4f10SYehuda Sadeh { 2450a40c4f10SYehuda Sadeh kref_get(&event->kref); 2451a40c4f10SYehuda Sadeh } 2452a40c4f10SYehuda Sadeh 2453a40c4f10SYehuda Sadeh void ceph_osdc_put_event(struct ceph_osd_event *event) 2454a40c4f10SYehuda Sadeh { 2455a40c4f10SYehuda Sadeh kref_put(&event->kref, __release_event); 2456a40c4f10SYehuda Sadeh } 2457a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_put_event); 2458a40c4f10SYehuda Sadeh 2459a40c4f10SYehuda Sadeh static void __insert_event(struct ceph_osd_client *osdc, 2460a40c4f10SYehuda Sadeh struct ceph_osd_event *new) 2461a40c4f10SYehuda Sadeh { 2462a40c4f10SYehuda Sadeh struct rb_node **p = &osdc->event_tree.rb_node; 2463a40c4f10SYehuda Sadeh struct rb_node *parent = NULL; 2464a40c4f10SYehuda Sadeh struct ceph_osd_event *event = NULL; 2465a40c4f10SYehuda Sadeh 2466a40c4f10SYehuda Sadeh while (*p) { 2467a40c4f10SYehuda Sadeh parent = *p; 2468a40c4f10SYehuda Sadeh event = rb_entry(parent, struct ceph_osd_event, node); 2469a40c4f10SYehuda Sadeh if (new->cookie < event->cookie) 2470a40c4f10SYehuda Sadeh p = &(*p)->rb_left; 2471a40c4f10SYehuda Sadeh else if (new->cookie > event->cookie) 2472a40c4f10SYehuda Sadeh p = &(*p)->rb_right; 2473a40c4f10SYehuda Sadeh else 2474a40c4f10SYehuda Sadeh BUG(); 2475a40c4f10SYehuda Sadeh } 2476a40c4f10SYehuda Sadeh 2477a40c4f10SYehuda Sadeh rb_link_node(&new->node, parent, p); 2478a40c4f10SYehuda Sadeh rb_insert_color(&new->node, &osdc->event_tree); 2479a40c4f10SYehuda Sadeh } 2480a40c4f10SYehuda Sadeh 2481a40c4f10SYehuda Sadeh static struct ceph_osd_event *__find_event(struct ceph_osd_client *osdc, 2482a40c4f10SYehuda Sadeh u64 cookie) 2483a40c4f10SYehuda Sadeh { 2484a40c4f10SYehuda Sadeh struct rb_node **p = &osdc->event_tree.rb_node; 2485a40c4f10SYehuda Sadeh struct rb_node *parent = NULL; 2486a40c4f10SYehuda Sadeh struct ceph_osd_event *event = NULL; 2487a40c4f10SYehuda Sadeh 2488a40c4f10SYehuda Sadeh while (*p) { 2489a40c4f10SYehuda Sadeh parent = *p; 2490a40c4f10SYehuda Sadeh event = rb_entry(parent, struct ceph_osd_event, node); 2491a40c4f10SYehuda Sadeh if (cookie < event->cookie) 2492a40c4f10SYehuda Sadeh p = &(*p)->rb_left; 2493a40c4f10SYehuda Sadeh else if (cookie > event->cookie) 2494a40c4f10SYehuda Sadeh p = &(*p)->rb_right; 2495a40c4f10SYehuda Sadeh else 2496a40c4f10SYehuda Sadeh return event; 2497a40c4f10SYehuda Sadeh } 2498a40c4f10SYehuda Sadeh return NULL; 2499a40c4f10SYehuda Sadeh } 2500a40c4f10SYehuda Sadeh 2501a40c4f10SYehuda Sadeh static void __remove_event(struct ceph_osd_event *event) 2502a40c4f10SYehuda Sadeh { 2503a40c4f10SYehuda Sadeh struct ceph_osd_client *osdc = event->osdc; 2504a40c4f10SYehuda Sadeh 2505a40c4f10SYehuda Sadeh if (!RB_EMPTY_NODE(&event->node)) { 2506a40c4f10SYehuda Sadeh dout("__remove_event removed %p\n", event); 2507a40c4f10SYehuda Sadeh rb_erase(&event->node, &osdc->event_tree); 2508a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 2509a40c4f10SYehuda Sadeh } else { 2510a40c4f10SYehuda Sadeh dout("__remove_event didn't remove %p\n", event); 2511a40c4f10SYehuda Sadeh } 2512a40c4f10SYehuda Sadeh } 2513a40c4f10SYehuda Sadeh 2514a40c4f10SYehuda Sadeh int ceph_osdc_create_event(struct ceph_osd_client *osdc, 2515a40c4f10SYehuda Sadeh void (*event_cb)(u64, u64, u8, void *), 25163c663bbdSAlex Elder void *data, struct ceph_osd_event **pevent) 2517a40c4f10SYehuda Sadeh { 2518a40c4f10SYehuda Sadeh struct ceph_osd_event *event; 2519a40c4f10SYehuda Sadeh 2520a40c4f10SYehuda Sadeh event = kmalloc(sizeof(*event), GFP_NOIO); 2521a40c4f10SYehuda Sadeh if (!event) 2522a40c4f10SYehuda Sadeh return -ENOMEM; 2523a40c4f10SYehuda Sadeh 2524a40c4f10SYehuda Sadeh dout("create_event %p\n", event); 2525a40c4f10SYehuda Sadeh event->cb = event_cb; 25263c663bbdSAlex Elder event->one_shot = 0; 2527a40c4f10SYehuda Sadeh event->data = data; 2528a40c4f10SYehuda Sadeh event->osdc = osdc; 2529a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&event->osd_node); 25303ee5234dSAlex Elder RB_CLEAR_NODE(&event->node); 2531a40c4f10SYehuda Sadeh kref_init(&event->kref); /* one ref for us */ 2532a40c4f10SYehuda Sadeh kref_get(&event->kref); /* one ref for the caller */ 2533a40c4f10SYehuda Sadeh 2534a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 2535a40c4f10SYehuda Sadeh event->cookie = ++osdc->event_count; 2536a40c4f10SYehuda Sadeh __insert_event(osdc, event); 2537a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 2538a40c4f10SYehuda Sadeh 2539a40c4f10SYehuda Sadeh *pevent = event; 2540a40c4f10SYehuda Sadeh return 0; 2541a40c4f10SYehuda Sadeh } 2542a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_create_event); 2543a40c4f10SYehuda Sadeh 2544a40c4f10SYehuda Sadeh void ceph_osdc_cancel_event(struct ceph_osd_event *event) 2545a40c4f10SYehuda Sadeh { 2546a40c4f10SYehuda Sadeh struct ceph_osd_client *osdc = event->osdc; 2547a40c4f10SYehuda Sadeh 2548a40c4f10SYehuda Sadeh dout("cancel_event %p\n", event); 2549a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 2550a40c4f10SYehuda Sadeh __remove_event(event); 2551a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 2552a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); /* caller's */ 2553a40c4f10SYehuda Sadeh } 2554a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_cancel_event); 2555a40c4f10SYehuda Sadeh 2556a40c4f10SYehuda Sadeh 2557a40c4f10SYehuda Sadeh static void do_event_work(struct work_struct *work) 2558a40c4f10SYehuda Sadeh { 2559a40c4f10SYehuda Sadeh struct ceph_osd_event_work *event_work = 2560a40c4f10SYehuda Sadeh container_of(work, struct ceph_osd_event_work, work); 2561a40c4f10SYehuda Sadeh struct ceph_osd_event *event = event_work->event; 2562a40c4f10SYehuda Sadeh u64 ver = event_work->ver; 2563a40c4f10SYehuda Sadeh u64 notify_id = event_work->notify_id; 2564a40c4f10SYehuda Sadeh u8 opcode = event_work->opcode; 2565a40c4f10SYehuda Sadeh 2566a40c4f10SYehuda Sadeh dout("do_event_work completing %p\n", event); 2567a40c4f10SYehuda Sadeh event->cb(ver, notify_id, opcode, event->data); 2568a40c4f10SYehuda Sadeh dout("do_event_work completed %p\n", event); 2569a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 2570a40c4f10SYehuda Sadeh kfree(event_work); 2571a40c4f10SYehuda Sadeh } 2572a40c4f10SYehuda Sadeh 2573a40c4f10SYehuda Sadeh 2574a40c4f10SYehuda Sadeh /* 2575a40c4f10SYehuda Sadeh * Process osd watch notifications 2576a40c4f10SYehuda Sadeh */ 25773c663bbdSAlex Elder static void handle_watch_notify(struct ceph_osd_client *osdc, 25783c663bbdSAlex Elder struct ceph_msg *msg) 2579a40c4f10SYehuda Sadeh { 2580a40c4f10SYehuda Sadeh void *p, *end; 2581a40c4f10SYehuda Sadeh u8 proto_ver; 2582a40c4f10SYehuda Sadeh u64 cookie, ver, notify_id; 2583a40c4f10SYehuda Sadeh u8 opcode; 2584a40c4f10SYehuda Sadeh struct ceph_osd_event *event; 2585a40c4f10SYehuda Sadeh struct ceph_osd_event_work *event_work; 2586a40c4f10SYehuda Sadeh 2587a40c4f10SYehuda Sadeh p = msg->front.iov_base; 2588a40c4f10SYehuda Sadeh end = p + msg->front.iov_len; 2589a40c4f10SYehuda Sadeh 2590a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, proto_ver, bad); 2591a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, opcode, bad); 2592a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, cookie, bad); 2593a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, ver, bad); 2594a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, notify_id, bad); 2595a40c4f10SYehuda Sadeh 2596a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 2597a40c4f10SYehuda Sadeh event = __find_event(osdc, cookie); 2598a40c4f10SYehuda Sadeh if (event) { 25993c663bbdSAlex Elder BUG_ON(event->one_shot); 2600a40c4f10SYehuda Sadeh get_event(event); 2601a40c4f10SYehuda Sadeh } 2602a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 2603a40c4f10SYehuda Sadeh dout("handle_watch_notify cookie %lld ver %lld event %p\n", 2604a40c4f10SYehuda Sadeh cookie, ver, event); 2605a40c4f10SYehuda Sadeh if (event) { 2606a40c4f10SYehuda Sadeh event_work = kmalloc(sizeof(*event_work), GFP_NOIO); 2607a40c4f10SYehuda Sadeh if (!event_work) { 260891883cd2SIlya Dryomov pr_err("couldn't allocate event_work\n"); 260991883cd2SIlya Dryomov ceph_osdc_put_event(event); 261091883cd2SIlya Dryomov return; 2611a40c4f10SYehuda Sadeh } 26126b0ae409SMariusz Kozlowski INIT_WORK(&event_work->work, do_event_work); 2613a40c4f10SYehuda Sadeh event_work->event = event; 2614a40c4f10SYehuda Sadeh event_work->ver = ver; 2615a40c4f10SYehuda Sadeh event_work->notify_id = notify_id; 2616a40c4f10SYehuda Sadeh event_work->opcode = opcode; 261791883cd2SIlya Dryomov 261891883cd2SIlya Dryomov queue_work(osdc->notify_wq, &event_work->work); 2619a40c4f10SYehuda Sadeh } 2620a40c4f10SYehuda Sadeh 2621a40c4f10SYehuda Sadeh return; 2622a40c4f10SYehuda Sadeh 2623a40c4f10SYehuda Sadeh bad: 2624a40c4f10SYehuda Sadeh pr_err("osdc handle_watch_notify corrupt msg\n"); 2625a40c4f10SYehuda Sadeh } 2626a40c4f10SYehuda Sadeh 2627a40c4f10SYehuda Sadeh /* 26283d14c5d2SYehuda Sadeh * Register request, send initial attempt. 26293d14c5d2SYehuda Sadeh */ 26303d14c5d2SYehuda Sadeh int ceph_osdc_start_request(struct ceph_osd_client *osdc, 26313d14c5d2SYehuda Sadeh struct ceph_osd_request *req, 26323d14c5d2SYehuda Sadeh bool nofail) 26333d14c5d2SYehuda Sadeh { 26345aea3dcdSIlya Dryomov down_read(&osdc->lock); 26355aea3dcdSIlya Dryomov submit_request(req, false); 26365aea3dcdSIlya Dryomov up_read(&osdc->lock); 26373d14c5d2SYehuda Sadeh 26385aea3dcdSIlya Dryomov return 0; 26393d14c5d2SYehuda Sadeh } 26403d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_start_request); 26413d14c5d2SYehuda Sadeh 26423d14c5d2SYehuda Sadeh /* 2643c9f9b93dSIlya Dryomov * Unregister a registered request. The request is not completed (i.e. 2644c9f9b93dSIlya Dryomov * no callbacks or wakeups) - higher layers are supposed to know what 2645c9f9b93dSIlya Dryomov * they are canceling. 2646c9f9b93dSIlya Dryomov */ 2647c9f9b93dSIlya Dryomov void ceph_osdc_cancel_request(struct ceph_osd_request *req) 2648c9f9b93dSIlya Dryomov { 2649c9f9b93dSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 2650c9f9b93dSIlya Dryomov 26515aea3dcdSIlya Dryomov down_write(&osdc->lock); 2652c9f9b93dSIlya Dryomov if (req->r_linger) 2653c9f9b93dSIlya Dryomov __unregister_linger_request(osdc, req); 26545aea3dcdSIlya Dryomov if (req->r_osd) 26555aea3dcdSIlya Dryomov cancel_request(req); 26565aea3dcdSIlya Dryomov up_write(&osdc->lock); 2657c9f9b93dSIlya Dryomov } 2658c9f9b93dSIlya Dryomov EXPORT_SYMBOL(ceph_osdc_cancel_request); 2659c9f9b93dSIlya Dryomov 2660c9f9b93dSIlya Dryomov /* 26613d14c5d2SYehuda Sadeh * wait for a request to complete 26623d14c5d2SYehuda Sadeh */ 26633d14c5d2SYehuda Sadeh int ceph_osdc_wait_request(struct ceph_osd_client *osdc, 26643d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 26653d14c5d2SYehuda Sadeh { 26663d14c5d2SYehuda Sadeh int rc; 26673d14c5d2SYehuda Sadeh 2668c9f9b93dSIlya Dryomov dout("%s %p tid %llu\n", __func__, req, req->r_tid); 2669c9f9b93dSIlya Dryomov 26703d14c5d2SYehuda Sadeh rc = wait_for_completion_interruptible(&req->r_completion); 26713d14c5d2SYehuda Sadeh if (rc < 0) { 2672c9f9b93dSIlya Dryomov dout("%s %p tid %llu interrupted\n", __func__, req, req->r_tid); 2673c9f9b93dSIlya Dryomov ceph_osdc_cancel_request(req); 2674fe5da05eSIlya Dryomov 2675fe5da05eSIlya Dryomov /* kludge - need to to wake ceph_osdc_sync() */ 2676fe5da05eSIlya Dryomov complete_all(&req->r_safe_completion); 26773d14c5d2SYehuda Sadeh return rc; 26783d14c5d2SYehuda Sadeh } 26793d14c5d2SYehuda Sadeh 2680c9f9b93dSIlya Dryomov dout("%s %p tid %llu result %d\n", __func__, req, req->r_tid, 2681c9f9b93dSIlya Dryomov req->r_result); 26823d14c5d2SYehuda Sadeh return req->r_result; 26833d14c5d2SYehuda Sadeh } 26843d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_wait_request); 26853d14c5d2SYehuda Sadeh 26863d14c5d2SYehuda Sadeh /* 26873d14c5d2SYehuda Sadeh * sync - wait for all in-flight requests to flush. avoid starvation. 26883d14c5d2SYehuda Sadeh */ 26893d14c5d2SYehuda Sadeh void ceph_osdc_sync(struct ceph_osd_client *osdc) 26903d14c5d2SYehuda Sadeh { 26915aea3dcdSIlya Dryomov struct rb_node *n, *p; 26925aea3dcdSIlya Dryomov u64 last_tid = atomic64_read(&osdc->last_tid); 26933d14c5d2SYehuda Sadeh 26945aea3dcdSIlya Dryomov again: 26955aea3dcdSIlya Dryomov down_read(&osdc->lock); 26965aea3dcdSIlya Dryomov for (n = rb_first(&osdc->osds); n; n = rb_next(n)) { 26975aea3dcdSIlya Dryomov struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node); 26985aea3dcdSIlya Dryomov 26995aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 27005aea3dcdSIlya Dryomov for (p = rb_first(&osd->o_requests); p; p = rb_next(p)) { 27015aea3dcdSIlya Dryomov struct ceph_osd_request *req = 27025aea3dcdSIlya Dryomov rb_entry(p, struct ceph_osd_request, r_node); 27035aea3dcdSIlya Dryomov 27043d14c5d2SYehuda Sadeh if (req->r_tid > last_tid) 27053d14c5d2SYehuda Sadeh break; 27063d14c5d2SYehuda Sadeh 27075aea3dcdSIlya Dryomov if (!(req->r_flags & CEPH_OSD_FLAG_WRITE)) 27083d14c5d2SYehuda Sadeh continue; 27093d14c5d2SYehuda Sadeh 27103d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 27115aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 27125aea3dcdSIlya Dryomov up_read(&osdc->lock); 27135aea3dcdSIlya Dryomov dout("%s waiting on req %p tid %llu last_tid %llu\n", 27145aea3dcdSIlya Dryomov __func__, req, req->r_tid, last_tid); 27153d14c5d2SYehuda Sadeh wait_for_completion(&req->r_safe_completion); 27163d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 27175aea3dcdSIlya Dryomov goto again; 27183d14c5d2SYehuda Sadeh } 27195aea3dcdSIlya Dryomov 27205aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 27215aea3dcdSIlya Dryomov } 27225aea3dcdSIlya Dryomov 27235aea3dcdSIlya Dryomov up_read(&osdc->lock); 27245aea3dcdSIlya Dryomov dout("%s done last_tid %llu\n", __func__, last_tid); 27253d14c5d2SYehuda Sadeh } 27263d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_sync); 27273d14c5d2SYehuda Sadeh 27283d14c5d2SYehuda Sadeh /* 2729dd935f44SJosh Durgin * Call all pending notify callbacks - for use after a watch is 2730dd935f44SJosh Durgin * unregistered, to make sure no more callbacks for it will be invoked 2731dd935f44SJosh Durgin */ 2732f6479449Sstephen hemminger void ceph_osdc_flush_notifies(struct ceph_osd_client *osdc) 2733dd935f44SJosh Durgin { 2734dd935f44SJosh Durgin flush_workqueue(osdc->notify_wq); 2735dd935f44SJosh Durgin } 2736dd935f44SJosh Durgin EXPORT_SYMBOL(ceph_osdc_flush_notifies); 2737dd935f44SJosh Durgin 2738dd935f44SJosh Durgin 2739dd935f44SJosh Durgin /* 27403d14c5d2SYehuda Sadeh * init, shutdown 27413d14c5d2SYehuda Sadeh */ 27423d14c5d2SYehuda Sadeh int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) 27433d14c5d2SYehuda Sadeh { 27443d14c5d2SYehuda Sadeh int err; 27453d14c5d2SYehuda Sadeh 27463d14c5d2SYehuda Sadeh dout("init\n"); 27473d14c5d2SYehuda Sadeh osdc->client = client; 27485aea3dcdSIlya Dryomov init_rwsem(&osdc->lock); 27493d14c5d2SYehuda Sadeh osdc->osds = RB_ROOT; 27503d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osdc->osd_lru); 27519dd2845cSIlya Dryomov spin_lock_init(&osdc->osd_lru_lock); 2752a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&osdc->req_linger); 27535aea3dcdSIlya Dryomov osd_init(&osdc->homeless_osd); 27545aea3dcdSIlya Dryomov osdc->homeless_osd.o_osdc = osdc; 27555aea3dcdSIlya Dryomov osdc->homeless_osd.o_osd = CEPH_HOMELESS_OSD; 27563d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->timeout_work, handle_timeout); 27573d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->osds_timeout_work, handle_osds_timeout); 2758a40c4f10SYehuda Sadeh spin_lock_init(&osdc->event_lock); 2759a40c4f10SYehuda Sadeh osdc->event_tree = RB_ROOT; 2760a40c4f10SYehuda Sadeh osdc->event_count = 0; 27613d14c5d2SYehuda Sadeh 27623d14c5d2SYehuda Sadeh err = -ENOMEM; 2763e5253a7bSIlya Dryomov osdc->osdmap = ceph_osdmap_alloc(); 2764e5253a7bSIlya Dryomov if (!osdc->osdmap) 2765e5253a7bSIlya Dryomov goto out; 2766e5253a7bSIlya Dryomov 27679e767adbSIlya Dryomov osdc->req_mempool = mempool_create_slab_pool(10, 27689e767adbSIlya Dryomov ceph_osd_request_cache); 27693d14c5d2SYehuda Sadeh if (!osdc->req_mempool) 2770e5253a7bSIlya Dryomov goto out_map; 27713d14c5d2SYehuda Sadeh 2772d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op, CEPH_MSG_OSD_OP, 2773711da55dSIlya Dryomov PAGE_SIZE, 10, true, "osd_op"); 27743d14c5d2SYehuda Sadeh if (err < 0) 27753d14c5d2SYehuda Sadeh goto out_mempool; 2776d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op_reply, CEPH_MSG_OSD_OPREPLY, 2777711da55dSIlya Dryomov PAGE_SIZE, 10, true, "osd_op_reply"); 27783d14c5d2SYehuda Sadeh if (err < 0) 27793d14c5d2SYehuda Sadeh goto out_msgpool; 2780a40c4f10SYehuda Sadeh 2781dbcae088SDan Carpenter err = -ENOMEM; 2782a40c4f10SYehuda Sadeh osdc->notify_wq = create_singlethread_workqueue("ceph-watch-notify"); 2783dbcae088SDan Carpenter if (!osdc->notify_wq) 2784c172ec5cSIlya Dryomov goto out_msgpool_reply; 2785c172ec5cSIlya Dryomov 2786fbca9635SIlya Dryomov schedule_delayed_work(&osdc->timeout_work, 2787fbca9635SIlya Dryomov osdc->client->options->osd_keepalive_timeout); 2788b37ee1b9SIlya Dryomov schedule_delayed_work(&osdc->osds_timeout_work, 2789b37ee1b9SIlya Dryomov round_jiffies_relative(osdc->client->options->osd_idle_ttl)); 2790b37ee1b9SIlya Dryomov 27913d14c5d2SYehuda Sadeh return 0; 27923d14c5d2SYehuda Sadeh 2793c172ec5cSIlya Dryomov out_msgpool_reply: 2794c172ec5cSIlya Dryomov ceph_msgpool_destroy(&osdc->msgpool_op_reply); 27953d14c5d2SYehuda Sadeh out_msgpool: 27963d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 27973d14c5d2SYehuda Sadeh out_mempool: 27983d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 2799e5253a7bSIlya Dryomov out_map: 2800e5253a7bSIlya Dryomov ceph_osdmap_destroy(osdc->osdmap); 28013d14c5d2SYehuda Sadeh out: 28023d14c5d2SYehuda Sadeh return err; 28033d14c5d2SYehuda Sadeh } 28043d14c5d2SYehuda Sadeh 28053d14c5d2SYehuda Sadeh void ceph_osdc_stop(struct ceph_osd_client *osdc) 28063d14c5d2SYehuda Sadeh { 2807a40c4f10SYehuda Sadeh flush_workqueue(osdc->notify_wq); 2808a40c4f10SYehuda Sadeh destroy_workqueue(osdc->notify_wq); 28093d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->timeout_work); 28103d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->osds_timeout_work); 281142a2c09fSIlya Dryomov 28125aea3dcdSIlya Dryomov down_write(&osdc->lock); 281342a2c09fSIlya Dryomov while (!RB_EMPTY_ROOT(&osdc->osds)) { 281442a2c09fSIlya Dryomov struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds), 281542a2c09fSIlya Dryomov struct ceph_osd, o_node); 28165aea3dcdSIlya Dryomov close_osd(osd); 281742a2c09fSIlya Dryomov } 28185aea3dcdSIlya Dryomov up_write(&osdc->lock); 28195aea3dcdSIlya Dryomov WARN_ON(atomic_read(&osdc->homeless_osd.o_ref) != 1); 28205aea3dcdSIlya Dryomov osd_cleanup(&osdc->homeless_osd); 28215aea3dcdSIlya Dryomov 28225aea3dcdSIlya Dryomov WARN_ON(!list_empty(&osdc->osd_lru)); 28235aea3dcdSIlya Dryomov WARN_ON(atomic_read(&osdc->num_requests)); 28245aea3dcdSIlya Dryomov WARN_ON(atomic_read(&osdc->num_homeless)); 282542a2c09fSIlya Dryomov 28263d14c5d2SYehuda Sadeh ceph_osdmap_destroy(osdc->osdmap); 28273d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 28283d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 28293d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op_reply); 28303d14c5d2SYehuda Sadeh } 28313d14c5d2SYehuda Sadeh 28323d14c5d2SYehuda Sadeh /* 28333d14c5d2SYehuda Sadeh * Read some contiguous pages. If we cross a stripe boundary, shorten 28343d14c5d2SYehuda Sadeh * *plen. Return number of bytes read, or error. 28353d14c5d2SYehuda Sadeh */ 28363d14c5d2SYehuda Sadeh int ceph_osdc_readpages(struct ceph_osd_client *osdc, 28373d14c5d2SYehuda Sadeh struct ceph_vino vino, struct ceph_file_layout *layout, 28383d14c5d2SYehuda Sadeh u64 off, u64 *plen, 28393d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 2840b7495fc2SSage Weil struct page **pages, int num_pages, int page_align) 28413d14c5d2SYehuda Sadeh { 28423d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 28433d14c5d2SYehuda Sadeh int rc = 0; 28443d14c5d2SYehuda Sadeh 28453d14c5d2SYehuda Sadeh dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino, 28463d14c5d2SYehuda Sadeh vino.snap, off, *plen); 2847715e4cd4SYan, Zheng req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 0, 1, 28483d14c5d2SYehuda Sadeh CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, 2849acead002SAlex Elder NULL, truncate_seq, truncate_size, 2850153e5167SAlex Elder false); 28516816282dSSage Weil if (IS_ERR(req)) 28526816282dSSage Weil return PTR_ERR(req); 28533d14c5d2SYehuda Sadeh 28543d14c5d2SYehuda Sadeh /* it may be a short read due to an object boundary */ 2855406e2c9fSAlex Elder osd_req_op_extent_osd_data_pages(req, 0, 2856a4ce40a9SAlex Elder pages, *plen, page_align, false, false); 28573d14c5d2SYehuda Sadeh 2858e0c59487SAlex Elder dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n", 285943bfe5deSAlex Elder off, *plen, *plen, page_align); 28603d14c5d2SYehuda Sadeh 28613d14c5d2SYehuda Sadeh rc = ceph_osdc_start_request(osdc, req, false); 28623d14c5d2SYehuda Sadeh if (!rc) 28633d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 28643d14c5d2SYehuda Sadeh 28653d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 28663d14c5d2SYehuda Sadeh dout("readpages result %d\n", rc); 28673d14c5d2SYehuda Sadeh return rc; 28683d14c5d2SYehuda Sadeh } 28693d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_readpages); 28703d14c5d2SYehuda Sadeh 28713d14c5d2SYehuda Sadeh /* 28723d14c5d2SYehuda Sadeh * do a synchronous write on N pages 28733d14c5d2SYehuda Sadeh */ 28743d14c5d2SYehuda Sadeh int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, 28753d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 28763d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 28773d14c5d2SYehuda Sadeh u64 off, u64 len, 28783d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 28793d14c5d2SYehuda Sadeh struct timespec *mtime, 288024808826SAlex Elder struct page **pages, int num_pages) 28813d14c5d2SYehuda Sadeh { 28823d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 28833d14c5d2SYehuda Sadeh int rc = 0; 2884b7495fc2SSage Weil int page_align = off & ~PAGE_MASK; 28853d14c5d2SYehuda Sadeh 2886715e4cd4SYan, Zheng req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 0, 1, 28873d14c5d2SYehuda Sadeh CEPH_OSD_OP_WRITE, 288824808826SAlex Elder CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE, 2889acead002SAlex Elder snapc, truncate_seq, truncate_size, 2890153e5167SAlex Elder true); 28916816282dSSage Weil if (IS_ERR(req)) 28926816282dSSage Weil return PTR_ERR(req); 28933d14c5d2SYehuda Sadeh 28943d14c5d2SYehuda Sadeh /* it may be a short write due to an object boundary */ 2895406e2c9fSAlex Elder osd_req_op_extent_osd_data_pages(req, 0, pages, len, page_align, 289643bfe5deSAlex Elder false, false); 289743bfe5deSAlex Elder dout("writepages %llu~%llu (%llu bytes)\n", off, len, len); 28983d14c5d2SYehuda Sadeh 2899bb873b53SIlya Dryomov req->r_mtime = *mtime; 290087f979d3SAlex Elder rc = ceph_osdc_start_request(osdc, req, true); 29013d14c5d2SYehuda Sadeh if (!rc) 29023d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 29033d14c5d2SYehuda Sadeh 29043d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 29053d14c5d2SYehuda Sadeh if (rc == 0) 29063d14c5d2SYehuda Sadeh rc = len; 29073d14c5d2SYehuda Sadeh dout("writepages result %d\n", rc); 29083d14c5d2SYehuda Sadeh return rc; 29093d14c5d2SYehuda Sadeh } 29103d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_writepages); 29113d14c5d2SYehuda Sadeh 29125522ae0bSAlex Elder int ceph_osdc_setup(void) 29135522ae0bSAlex Elder { 29143f1af42aSIlya Dryomov size_t size = sizeof(struct ceph_osd_request) + 29153f1af42aSIlya Dryomov CEPH_OSD_SLAB_OPS * sizeof(struct ceph_osd_req_op); 29163f1af42aSIlya Dryomov 29175522ae0bSAlex Elder BUG_ON(ceph_osd_request_cache); 29183f1af42aSIlya Dryomov ceph_osd_request_cache = kmem_cache_create("ceph_osd_request", size, 29193f1af42aSIlya Dryomov 0, 0, NULL); 29205522ae0bSAlex Elder 29215522ae0bSAlex Elder return ceph_osd_request_cache ? 0 : -ENOMEM; 29225522ae0bSAlex Elder } 29235522ae0bSAlex Elder EXPORT_SYMBOL(ceph_osdc_setup); 29245522ae0bSAlex Elder 29255522ae0bSAlex Elder void ceph_osdc_cleanup(void) 29265522ae0bSAlex Elder { 29275522ae0bSAlex Elder BUG_ON(!ceph_osd_request_cache); 29285522ae0bSAlex Elder kmem_cache_destroy(ceph_osd_request_cache); 29295522ae0bSAlex Elder ceph_osd_request_cache = NULL; 29305522ae0bSAlex Elder } 29315522ae0bSAlex Elder EXPORT_SYMBOL(ceph_osdc_cleanup); 29325522ae0bSAlex Elder 29333d14c5d2SYehuda Sadeh /* 29343d14c5d2SYehuda Sadeh * handle incoming message 29353d14c5d2SYehuda Sadeh */ 29363d14c5d2SYehuda Sadeh static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) 29373d14c5d2SYehuda Sadeh { 29383d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 29395aea3dcdSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 29403d14c5d2SYehuda Sadeh int type = le16_to_cpu(msg->hdr.type); 29413d14c5d2SYehuda Sadeh 29423d14c5d2SYehuda Sadeh switch (type) { 29433d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 29443d14c5d2SYehuda Sadeh ceph_osdc_handle_map(osdc, msg); 29453d14c5d2SYehuda Sadeh break; 29463d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 29475aea3dcdSIlya Dryomov handle_reply(osd, msg); 29483d14c5d2SYehuda Sadeh break; 2949a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 2950a40c4f10SYehuda Sadeh handle_watch_notify(osdc, msg); 2951a40c4f10SYehuda Sadeh break; 29523d14c5d2SYehuda Sadeh 29533d14c5d2SYehuda Sadeh default: 29543d14c5d2SYehuda Sadeh pr_err("received unknown message type %d %s\n", type, 29553d14c5d2SYehuda Sadeh ceph_msg_type_name(type)); 29563d14c5d2SYehuda Sadeh } 29575aea3dcdSIlya Dryomov 29583d14c5d2SYehuda Sadeh ceph_msg_put(msg); 29593d14c5d2SYehuda Sadeh } 29603d14c5d2SYehuda Sadeh 29613d14c5d2SYehuda Sadeh /* 2962d15f9d69SIlya Dryomov * Lookup and return message for incoming reply. Don't try to do 2963d15f9d69SIlya Dryomov * anything about a larger than preallocated data portion of the 2964d15f9d69SIlya Dryomov * message at the moment - for now, just skip the message. 29653d14c5d2SYehuda Sadeh */ 29663d14c5d2SYehuda Sadeh static struct ceph_msg *get_reply(struct ceph_connection *con, 29673d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 29683d14c5d2SYehuda Sadeh int *skip) 29693d14c5d2SYehuda Sadeh { 29703d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 29713d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = osd->o_osdc; 29725aea3dcdSIlya Dryomov struct ceph_msg *m = NULL; 29733d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 29743f0a4ac5SIlya Dryomov int front_len = le32_to_cpu(hdr->front_len); 29753d14c5d2SYehuda Sadeh int data_len = le32_to_cpu(hdr->data_len); 29765aea3dcdSIlya Dryomov u64 tid = le64_to_cpu(hdr->tid); 29773d14c5d2SYehuda Sadeh 29785aea3dcdSIlya Dryomov down_read(&osdc->lock); 29795aea3dcdSIlya Dryomov if (!osd_registered(osd)) { 29805aea3dcdSIlya Dryomov dout("%s osd%d unknown, skipping\n", __func__, osd->o_osd); 29815aea3dcdSIlya Dryomov *skip = 1; 29825aea3dcdSIlya Dryomov goto out_unlock_osdc; 29835aea3dcdSIlya Dryomov } 29845aea3dcdSIlya Dryomov WARN_ON(osd->o_osd != le64_to_cpu(hdr->src.num)); 29855aea3dcdSIlya Dryomov 29865aea3dcdSIlya Dryomov mutex_lock(&osd->lock); 29875aea3dcdSIlya Dryomov req = lookup_request(&osd->o_requests, tid); 29883d14c5d2SYehuda Sadeh if (!req) { 2989cd8140c6SIlya Dryomov dout("%s osd%d tid %llu unknown, skipping\n", __func__, 2990cd8140c6SIlya Dryomov osd->o_osd, tid); 2991d15f9d69SIlya Dryomov *skip = 1; 29925aea3dcdSIlya Dryomov goto out_unlock_session; 29933d14c5d2SYehuda Sadeh } 29943d14c5d2SYehuda Sadeh 29958921d114SAlex Elder ceph_msg_revoke_incoming(req->r_reply); 29963d14c5d2SYehuda Sadeh 2997f2be82b0SIlya Dryomov if (front_len > req->r_reply->front_alloc_len) { 2998d15f9d69SIlya Dryomov pr_warn("%s osd%d tid %llu front %d > preallocated %d\n", 2999d15f9d69SIlya Dryomov __func__, osd->o_osd, req->r_tid, front_len, 3000d15f9d69SIlya Dryomov req->r_reply->front_alloc_len); 30013f0a4ac5SIlya Dryomov m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front_len, GFP_NOFS, 30023f0a4ac5SIlya Dryomov false); 30033d14c5d2SYehuda Sadeh if (!m) 30045aea3dcdSIlya Dryomov goto out_unlock_session; 30053d14c5d2SYehuda Sadeh ceph_msg_put(req->r_reply); 30063d14c5d2SYehuda Sadeh req->r_reply = m; 30073d14c5d2SYehuda Sadeh } 30083d14c5d2SYehuda Sadeh 3009d15f9d69SIlya Dryomov if (data_len > req->r_reply->data_length) { 3010d15f9d69SIlya Dryomov pr_warn("%s osd%d tid %llu data %d > preallocated %zu, skipping\n", 3011d15f9d69SIlya Dryomov __func__, osd->o_osd, req->r_tid, data_len, 3012d15f9d69SIlya Dryomov req->r_reply->data_length); 30133d14c5d2SYehuda Sadeh m = NULL; 3014d15f9d69SIlya Dryomov *skip = 1; 30155aea3dcdSIlya Dryomov goto out_unlock_session; 30163d14c5d2SYehuda Sadeh } 3017d15f9d69SIlya Dryomov 3018d15f9d69SIlya Dryomov m = ceph_msg_get(req->r_reply); 30193d14c5d2SYehuda Sadeh dout("get_reply tid %lld %p\n", tid, m); 30203d14c5d2SYehuda Sadeh 30215aea3dcdSIlya Dryomov out_unlock_session: 30225aea3dcdSIlya Dryomov mutex_unlock(&osd->lock); 30235aea3dcdSIlya Dryomov out_unlock_osdc: 30245aea3dcdSIlya Dryomov up_read(&osdc->lock); 30253d14c5d2SYehuda Sadeh return m; 30263d14c5d2SYehuda Sadeh } 30273d14c5d2SYehuda Sadeh 30283d14c5d2SYehuda Sadeh static struct ceph_msg *alloc_msg(struct ceph_connection *con, 30293d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 30303d14c5d2SYehuda Sadeh int *skip) 30313d14c5d2SYehuda Sadeh { 30323d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 30333d14c5d2SYehuda Sadeh int type = le16_to_cpu(hdr->type); 30343d14c5d2SYehuda Sadeh int front = le32_to_cpu(hdr->front_len); 30353d14c5d2SYehuda Sadeh 30361c20f2d2SAlex Elder *skip = 0; 30373d14c5d2SYehuda Sadeh switch (type) { 30383d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 3039a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 3040b61c2763SSage Weil return ceph_msg_new(type, front, GFP_NOFS, false); 30413d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 30423d14c5d2SYehuda Sadeh return get_reply(con, hdr, skip); 30433d14c5d2SYehuda Sadeh default: 30445aea3dcdSIlya Dryomov pr_warn("%s osd%d unknown msg type %d, skipping\n", __func__, 30455aea3dcdSIlya Dryomov osd->o_osd, type); 30463d14c5d2SYehuda Sadeh *skip = 1; 30473d14c5d2SYehuda Sadeh return NULL; 30483d14c5d2SYehuda Sadeh } 30493d14c5d2SYehuda Sadeh } 30503d14c5d2SYehuda Sadeh 30513d14c5d2SYehuda Sadeh /* 30523d14c5d2SYehuda Sadeh * Wrappers to refcount containing ceph_osd struct 30533d14c5d2SYehuda Sadeh */ 30543d14c5d2SYehuda Sadeh static struct ceph_connection *get_osd_con(struct ceph_connection *con) 30553d14c5d2SYehuda Sadeh { 30563d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 30573d14c5d2SYehuda Sadeh if (get_osd(osd)) 30583d14c5d2SYehuda Sadeh return con; 30593d14c5d2SYehuda Sadeh return NULL; 30603d14c5d2SYehuda Sadeh } 30613d14c5d2SYehuda Sadeh 30623d14c5d2SYehuda Sadeh static void put_osd_con(struct ceph_connection *con) 30633d14c5d2SYehuda Sadeh { 30643d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 30653d14c5d2SYehuda Sadeh put_osd(osd); 30663d14c5d2SYehuda Sadeh } 30673d14c5d2SYehuda Sadeh 30683d14c5d2SYehuda Sadeh /* 30693d14c5d2SYehuda Sadeh * authentication 30703d14c5d2SYehuda Sadeh */ 3071a3530df3SAlex Elder /* 3072a3530df3SAlex Elder * Note: returned pointer is the address of a structure that's 3073a3530df3SAlex Elder * managed separately. Caller must *not* attempt to free it. 3074a3530df3SAlex Elder */ 3075a3530df3SAlex Elder static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con, 30768f43fb53SAlex Elder int *proto, int force_new) 30773d14c5d2SYehuda Sadeh { 30783d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 30793d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 30803d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 308174f1869fSAlex Elder struct ceph_auth_handshake *auth = &o->o_auth; 30823d14c5d2SYehuda Sadeh 308374f1869fSAlex Elder if (force_new && auth->authorizer) { 30846c1ea260SIlya Dryomov ceph_auth_destroy_authorizer(auth->authorizer); 308574f1869fSAlex Elder auth->authorizer = NULL; 30863d14c5d2SYehuda Sadeh } 308727859f97SSage Weil if (!auth->authorizer) { 308827859f97SSage Weil int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_OSD, 3089a3530df3SAlex Elder auth); 30903d14c5d2SYehuda Sadeh if (ret) 3091a3530df3SAlex Elder return ERR_PTR(ret); 309227859f97SSage Weil } else { 309327859f97SSage Weil int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_OSD, 30940bed9b5cSSage Weil auth); 30950bed9b5cSSage Weil if (ret) 30960bed9b5cSSage Weil return ERR_PTR(ret); 30973d14c5d2SYehuda Sadeh } 30983d14c5d2SYehuda Sadeh *proto = ac->protocol; 309974f1869fSAlex Elder 3100a3530df3SAlex Elder return auth; 31013d14c5d2SYehuda Sadeh } 31023d14c5d2SYehuda Sadeh 31033d14c5d2SYehuda Sadeh 31043d14c5d2SYehuda Sadeh static int verify_authorizer_reply(struct ceph_connection *con, int len) 31053d14c5d2SYehuda Sadeh { 31063d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 31073d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 31083d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 31093d14c5d2SYehuda Sadeh 311027859f97SSage Weil return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer, len); 31113d14c5d2SYehuda Sadeh } 31123d14c5d2SYehuda Sadeh 31133d14c5d2SYehuda Sadeh static int invalidate_authorizer(struct ceph_connection *con) 31143d14c5d2SYehuda Sadeh { 31153d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 31163d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 31173d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 31183d14c5d2SYehuda Sadeh 311927859f97SSage Weil ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD); 31203d14c5d2SYehuda Sadeh return ceph_monc_validate_auth(&osdc->client->monc); 31213d14c5d2SYehuda Sadeh } 31223d14c5d2SYehuda Sadeh 312379dbd1baSIlya Dryomov static int osd_sign_message(struct ceph_msg *msg) 312433d07337SYan, Zheng { 312579dbd1baSIlya Dryomov struct ceph_osd *o = msg->con->private; 312633d07337SYan, Zheng struct ceph_auth_handshake *auth = &o->o_auth; 312779dbd1baSIlya Dryomov 312833d07337SYan, Zheng return ceph_auth_sign_message(auth, msg); 312933d07337SYan, Zheng } 313033d07337SYan, Zheng 313179dbd1baSIlya Dryomov static int osd_check_message_signature(struct ceph_msg *msg) 313233d07337SYan, Zheng { 313379dbd1baSIlya Dryomov struct ceph_osd *o = msg->con->private; 313433d07337SYan, Zheng struct ceph_auth_handshake *auth = &o->o_auth; 313579dbd1baSIlya Dryomov 313633d07337SYan, Zheng return ceph_auth_check_message_signature(auth, msg); 313733d07337SYan, Zheng } 313833d07337SYan, Zheng 31393d14c5d2SYehuda Sadeh static const struct ceph_connection_operations osd_con_ops = { 31403d14c5d2SYehuda Sadeh .get = get_osd_con, 31413d14c5d2SYehuda Sadeh .put = put_osd_con, 31423d14c5d2SYehuda Sadeh .dispatch = dispatch, 31433d14c5d2SYehuda Sadeh .get_authorizer = get_authorizer, 31443d14c5d2SYehuda Sadeh .verify_authorizer_reply = verify_authorizer_reply, 31453d14c5d2SYehuda Sadeh .invalidate_authorizer = invalidate_authorizer, 31463d14c5d2SYehuda Sadeh .alloc_msg = alloc_msg, 314779dbd1baSIlya Dryomov .sign_message = osd_sign_message, 314879dbd1baSIlya Dryomov .check_message_signature = osd_check_message_signature, 31495aea3dcdSIlya Dryomov .fault = osd_fault, 31503d14c5d2SYehuda Sadeh }; 3151