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 28f9d25199SAlex Elder static void __send_queued(struct ceph_osd_client *osdc); 296f6c7006SSage Weil static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd); 30a40c4f10SYehuda Sadeh static void __register_request(struct ceph_osd_client *osdc, 31a40c4f10SYehuda Sadeh struct ceph_osd_request *req); 322cc6128aSIlya Dryomov static void __unregister_request(struct ceph_osd_client *osdc, 332cc6128aSIlya Dryomov struct ceph_osd_request *req); 34a40c4f10SYehuda Sadeh static void __unregister_linger_request(struct ceph_osd_client *osdc, 35a40c4f10SYehuda Sadeh struct ceph_osd_request *req); 362cc6128aSIlya Dryomov static void __enqueue_request(struct ceph_osd_request *req); 373d14c5d2SYehuda Sadeh 383d14c5d2SYehuda Sadeh /* 393d14c5d2SYehuda Sadeh * Implement client access to distributed object storage cluster. 403d14c5d2SYehuda Sadeh * 413d14c5d2SYehuda Sadeh * All data objects are stored within a cluster/cloud of OSDs, or 423d14c5d2SYehuda Sadeh * "object storage devices." (Note that Ceph OSDs have _nothing_ to 433d14c5d2SYehuda Sadeh * do with the T10 OSD extensions to SCSI.) Ceph OSDs are simply 443d14c5d2SYehuda Sadeh * remote daemons serving up and coordinating consistent and safe 453d14c5d2SYehuda Sadeh * access to storage. 463d14c5d2SYehuda Sadeh * 473d14c5d2SYehuda Sadeh * Cluster membership and the mapping of data objects onto storage devices 483d14c5d2SYehuda Sadeh * are described by the osd map. 493d14c5d2SYehuda Sadeh * 503d14c5d2SYehuda Sadeh * We keep track of pending OSD requests (read, write), resubmit 513d14c5d2SYehuda Sadeh * requests to different OSDs when the cluster topology/data layout 523d14c5d2SYehuda Sadeh * change, or retry the affected requests when the communications 533d14c5d2SYehuda Sadeh * channel with an OSD is reset. 543d14c5d2SYehuda Sadeh */ 553d14c5d2SYehuda Sadeh 563d14c5d2SYehuda Sadeh /* 573d14c5d2SYehuda Sadeh * calculate the mapping of a file extent onto an object, and fill out the 583d14c5d2SYehuda Sadeh * request accordingly. shorten extent as necessary if it crosses an 593d14c5d2SYehuda Sadeh * object boundary. 603d14c5d2SYehuda Sadeh * 613d14c5d2SYehuda Sadeh * fill osd op in request message. 623d14c5d2SYehuda Sadeh */ 63dbe0fc41SAlex Elder static int calc_layout(struct ceph_file_layout *layout, u64 off, u64 *plen, 64a19dadfbSAlex Elder u64 *objnum, u64 *objoff, u64 *objlen) 653d14c5d2SYehuda Sadeh { 6660e56f13SAlex Elder u64 orig_len = *plen; 67d63b77f4SSage Weil int r; 683d14c5d2SYehuda Sadeh 6960e56f13SAlex Elder /* object extent? */ 7075d1c941SAlex Elder r = ceph_calc_file_object_mapping(layout, off, orig_len, objnum, 7175d1c941SAlex Elder objoff, objlen); 72d63b77f4SSage Weil if (r < 0) 73d63b77f4SSage Weil return r; 7475d1c941SAlex Elder if (*objlen < orig_len) { 7575d1c941SAlex Elder *plen = *objlen; 7660e56f13SAlex Elder dout(" skipping last %llu, final file extent %llu~%llu\n", 7760e56f13SAlex Elder orig_len - *plen, off, *plen); 7860e56f13SAlex Elder } 7960e56f13SAlex Elder 8075d1c941SAlex Elder dout("calc_layout objnum=%llx %llu~%llu\n", *objnum, *objoff, *objlen); 813d14c5d2SYehuda Sadeh 823ff5f385SAlex Elder return 0; 833d14c5d2SYehuda Sadeh } 843d14c5d2SYehuda Sadeh 85c54d47bfSAlex Elder static void ceph_osd_data_init(struct ceph_osd_data *osd_data) 86c54d47bfSAlex Elder { 87c54d47bfSAlex Elder memset(osd_data, 0, sizeof (*osd_data)); 88c54d47bfSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_NONE; 89c54d47bfSAlex Elder } 90c54d47bfSAlex Elder 91a4ce40a9SAlex Elder static void ceph_osd_data_pages_init(struct ceph_osd_data *osd_data, 9243bfe5deSAlex Elder struct page **pages, u64 length, u32 alignment, 9343bfe5deSAlex Elder bool pages_from_pool, bool own_pages) 9443bfe5deSAlex Elder { 9543bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_PAGES; 9643bfe5deSAlex Elder osd_data->pages = pages; 9743bfe5deSAlex Elder osd_data->length = length; 9843bfe5deSAlex Elder osd_data->alignment = alignment; 9943bfe5deSAlex Elder osd_data->pages_from_pool = pages_from_pool; 10043bfe5deSAlex Elder osd_data->own_pages = own_pages; 10143bfe5deSAlex Elder } 10243bfe5deSAlex Elder 103a4ce40a9SAlex Elder static void ceph_osd_data_pagelist_init(struct ceph_osd_data *osd_data, 10443bfe5deSAlex Elder struct ceph_pagelist *pagelist) 10543bfe5deSAlex Elder { 10643bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_PAGELIST; 10743bfe5deSAlex Elder osd_data->pagelist = pagelist; 10843bfe5deSAlex Elder } 10943bfe5deSAlex Elder 11043bfe5deSAlex Elder #ifdef CONFIG_BLOCK 111a4ce40a9SAlex Elder static void ceph_osd_data_bio_init(struct ceph_osd_data *osd_data, 11243bfe5deSAlex Elder struct bio *bio, size_t bio_length) 11343bfe5deSAlex Elder { 11443bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_BIO; 11543bfe5deSAlex Elder osd_data->bio = bio; 11643bfe5deSAlex Elder osd_data->bio_length = bio_length; 11743bfe5deSAlex Elder } 11843bfe5deSAlex Elder #endif /* CONFIG_BLOCK */ 11943bfe5deSAlex Elder 120863c7eb5SAlex Elder #define osd_req_op_data(oreq, whch, typ, fld) \ 121863c7eb5SAlex Elder ({ \ 1228a703a38SIoana Ciornei struct ceph_osd_request *__oreq = (oreq); \ 1238a703a38SIoana Ciornei unsigned int __whch = (whch); \ 1248a703a38SIoana Ciornei BUG_ON(__whch >= __oreq->r_num_ops); \ 1258a703a38SIoana Ciornei &__oreq->r_ops[__whch].typ.fld; \ 126863c7eb5SAlex Elder }) 127863c7eb5SAlex Elder 12849719778SAlex Elder static struct ceph_osd_data * 12949719778SAlex Elder osd_req_op_raw_data_in(struct ceph_osd_request *osd_req, unsigned int which) 13049719778SAlex Elder { 13149719778SAlex Elder BUG_ON(which >= osd_req->r_num_ops); 13249719778SAlex Elder 13349719778SAlex Elder return &osd_req->r_ops[which].raw_data_in; 13449719778SAlex Elder } 13549719778SAlex Elder 136a4ce40a9SAlex Elder struct ceph_osd_data * 137a4ce40a9SAlex Elder osd_req_op_extent_osd_data(struct ceph_osd_request *osd_req, 138406e2c9fSAlex Elder unsigned int which) 139a4ce40a9SAlex Elder { 140863c7eb5SAlex Elder return osd_req_op_data(osd_req, which, extent, osd_data); 141a4ce40a9SAlex Elder } 142a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data); 143a4ce40a9SAlex Elder 14449719778SAlex Elder void osd_req_op_raw_data_in_pages(struct ceph_osd_request *osd_req, 14549719778SAlex Elder unsigned int which, struct page **pages, 14649719778SAlex Elder u64 length, u32 alignment, 14749719778SAlex Elder bool pages_from_pool, bool own_pages) 14849719778SAlex Elder { 14949719778SAlex Elder struct ceph_osd_data *osd_data; 15049719778SAlex Elder 15149719778SAlex Elder osd_data = osd_req_op_raw_data_in(osd_req, which); 15249719778SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 15349719778SAlex Elder pages_from_pool, own_pages); 15449719778SAlex Elder } 15549719778SAlex Elder EXPORT_SYMBOL(osd_req_op_raw_data_in_pages); 15649719778SAlex Elder 157a4ce40a9SAlex Elder void osd_req_op_extent_osd_data_pages(struct ceph_osd_request *osd_req, 158406e2c9fSAlex Elder unsigned int which, struct page **pages, 159406e2c9fSAlex Elder u64 length, u32 alignment, 160a4ce40a9SAlex Elder bool pages_from_pool, bool own_pages) 161a4ce40a9SAlex Elder { 162a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 163a4ce40a9SAlex Elder 164863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 165a4ce40a9SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 166a4ce40a9SAlex Elder pages_from_pool, own_pages); 167a4ce40a9SAlex Elder } 168a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data_pages); 169a4ce40a9SAlex Elder 170a4ce40a9SAlex Elder void osd_req_op_extent_osd_data_pagelist(struct ceph_osd_request *osd_req, 171406e2c9fSAlex Elder unsigned int which, struct ceph_pagelist *pagelist) 172a4ce40a9SAlex Elder { 173a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 174a4ce40a9SAlex Elder 175863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 176a4ce40a9SAlex Elder ceph_osd_data_pagelist_init(osd_data, pagelist); 177a4ce40a9SAlex Elder } 178a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data_pagelist); 179a4ce40a9SAlex Elder 180a4ce40a9SAlex Elder #ifdef CONFIG_BLOCK 181a4ce40a9SAlex Elder void osd_req_op_extent_osd_data_bio(struct ceph_osd_request *osd_req, 182406e2c9fSAlex Elder unsigned int which, struct bio *bio, size_t bio_length) 183a4ce40a9SAlex Elder { 184a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 185863c7eb5SAlex Elder 186863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, extent, osd_data); 187a4ce40a9SAlex Elder ceph_osd_data_bio_init(osd_data, bio, bio_length); 188a4ce40a9SAlex Elder } 189a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data_bio); 190a4ce40a9SAlex Elder #endif /* CONFIG_BLOCK */ 191a4ce40a9SAlex Elder 192a4ce40a9SAlex Elder static void osd_req_op_cls_request_info_pagelist( 193a4ce40a9SAlex Elder struct ceph_osd_request *osd_req, 194a4ce40a9SAlex Elder unsigned int which, struct ceph_pagelist *pagelist) 195a4ce40a9SAlex Elder { 196a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 197a4ce40a9SAlex Elder 198863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, request_info); 199a4ce40a9SAlex Elder ceph_osd_data_pagelist_init(osd_data, pagelist); 200a4ce40a9SAlex Elder } 201a4ce40a9SAlex Elder 20204017e29SAlex Elder void osd_req_op_cls_request_data_pagelist( 20304017e29SAlex Elder struct ceph_osd_request *osd_req, 20404017e29SAlex Elder unsigned int which, struct ceph_pagelist *pagelist) 20504017e29SAlex Elder { 20604017e29SAlex Elder struct ceph_osd_data *osd_data; 20704017e29SAlex Elder 208863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, request_data); 20904017e29SAlex Elder ceph_osd_data_pagelist_init(osd_data, pagelist); 210bb873b53SIlya Dryomov osd_req->r_ops[which].cls.indata_len += pagelist->length; 211bb873b53SIlya Dryomov osd_req->r_ops[which].indata_len += pagelist->length; 21204017e29SAlex Elder } 21304017e29SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_request_data_pagelist); 21404017e29SAlex Elder 2156c57b554SAlex Elder void osd_req_op_cls_request_data_pages(struct ceph_osd_request *osd_req, 2166c57b554SAlex Elder unsigned int which, struct page **pages, u64 length, 2176c57b554SAlex Elder u32 alignment, bool pages_from_pool, bool own_pages) 2186c57b554SAlex Elder { 2196c57b554SAlex Elder struct ceph_osd_data *osd_data; 2206c57b554SAlex Elder 2216c57b554SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, request_data); 2226c57b554SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 2236c57b554SAlex Elder pages_from_pool, own_pages); 224bb873b53SIlya Dryomov osd_req->r_ops[which].cls.indata_len += length; 225bb873b53SIlya Dryomov osd_req->r_ops[which].indata_len += length; 2266c57b554SAlex Elder } 2276c57b554SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_request_data_pages); 2286c57b554SAlex Elder 229a4ce40a9SAlex Elder void osd_req_op_cls_response_data_pages(struct ceph_osd_request *osd_req, 230a4ce40a9SAlex Elder unsigned int which, struct page **pages, u64 length, 231a4ce40a9SAlex Elder u32 alignment, bool pages_from_pool, bool own_pages) 232a4ce40a9SAlex Elder { 233a4ce40a9SAlex Elder struct ceph_osd_data *osd_data; 234a4ce40a9SAlex Elder 235863c7eb5SAlex Elder osd_data = osd_req_op_data(osd_req, which, cls, response_data); 236a4ce40a9SAlex Elder ceph_osd_data_pages_init(osd_data, pages, length, alignment, 237a4ce40a9SAlex Elder pages_from_pool, own_pages); 238a4ce40a9SAlex Elder } 239a4ce40a9SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_response_data_pages); 240a4ce40a9SAlex Elder 24123c08a9cSAlex Elder static u64 ceph_osd_data_length(struct ceph_osd_data *osd_data) 24223c08a9cSAlex Elder { 24323c08a9cSAlex Elder switch (osd_data->type) { 24423c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_NONE: 24523c08a9cSAlex Elder return 0; 24623c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_PAGES: 24723c08a9cSAlex Elder return osd_data->length; 24823c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_PAGELIST: 24923c08a9cSAlex Elder return (u64)osd_data->pagelist->length; 25023c08a9cSAlex Elder #ifdef CONFIG_BLOCK 25123c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_BIO: 25223c08a9cSAlex Elder return (u64)osd_data->bio_length; 25323c08a9cSAlex Elder #endif /* CONFIG_BLOCK */ 25423c08a9cSAlex Elder default: 25523c08a9cSAlex Elder WARN(true, "unrecognized data type %d\n", (int)osd_data->type); 25623c08a9cSAlex Elder return 0; 25723c08a9cSAlex Elder } 25823c08a9cSAlex Elder } 25923c08a9cSAlex Elder 260c54d47bfSAlex Elder static void ceph_osd_data_release(struct ceph_osd_data *osd_data) 261c54d47bfSAlex Elder { 2625476492fSAlex Elder if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES && osd_data->own_pages) { 263c54d47bfSAlex Elder int num_pages; 264c54d47bfSAlex Elder 265c54d47bfSAlex Elder num_pages = calc_pages_for((u64)osd_data->alignment, 266c54d47bfSAlex Elder (u64)osd_data->length); 267c54d47bfSAlex Elder ceph_release_page_vector(osd_data->pages, num_pages); 268c54d47bfSAlex Elder } 2695476492fSAlex Elder ceph_osd_data_init(osd_data); 2705476492fSAlex Elder } 2715476492fSAlex Elder 2725476492fSAlex Elder static void osd_req_op_data_release(struct ceph_osd_request *osd_req, 2735476492fSAlex Elder unsigned int which) 2745476492fSAlex Elder { 2755476492fSAlex Elder struct ceph_osd_req_op *op; 2765476492fSAlex Elder 2775476492fSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 2785476492fSAlex Elder op = &osd_req->r_ops[which]; 2795476492fSAlex Elder 2805476492fSAlex Elder switch (op->op) { 2815476492fSAlex Elder case CEPH_OSD_OP_READ: 2825476492fSAlex Elder case CEPH_OSD_OP_WRITE: 283e30b7577SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 2845476492fSAlex Elder ceph_osd_data_release(&op->extent.osd_data); 2855476492fSAlex Elder break; 2865476492fSAlex Elder case CEPH_OSD_OP_CALL: 2875476492fSAlex Elder ceph_osd_data_release(&op->cls.request_info); 28804017e29SAlex Elder ceph_osd_data_release(&op->cls.request_data); 2895476492fSAlex Elder ceph_osd_data_release(&op->cls.response_data); 2905476492fSAlex Elder break; 291d74b50beSYan, Zheng case CEPH_OSD_OP_SETXATTR: 292d74b50beSYan, Zheng case CEPH_OSD_OP_CMPXATTR: 293d74b50beSYan, Zheng ceph_osd_data_release(&op->xattr.osd_data); 294d74b50beSYan, Zheng break; 29566ba609fSYan, Zheng case CEPH_OSD_OP_STAT: 29666ba609fSYan, Zheng ceph_osd_data_release(&op->raw_data_in); 29766ba609fSYan, Zheng break; 2985476492fSAlex Elder default: 2995476492fSAlex Elder break; 3005476492fSAlex Elder } 301c54d47bfSAlex Elder } 302c54d47bfSAlex Elder 3033d14c5d2SYehuda Sadeh /* 30463244fa1SIlya Dryomov * Assumes @t is zero-initialized. 30563244fa1SIlya Dryomov */ 30663244fa1SIlya Dryomov static void target_init(struct ceph_osd_request_target *t) 30763244fa1SIlya Dryomov { 30863244fa1SIlya Dryomov ceph_oid_init(&t->base_oid); 30963244fa1SIlya Dryomov ceph_oloc_init(&t->base_oloc); 31063244fa1SIlya Dryomov ceph_oid_init(&t->target_oid); 31163244fa1SIlya Dryomov ceph_oloc_init(&t->target_oloc); 31263244fa1SIlya Dryomov 31363244fa1SIlya Dryomov ceph_osds_init(&t->acting); 31463244fa1SIlya Dryomov ceph_osds_init(&t->up); 31563244fa1SIlya Dryomov t->size = -1; 31663244fa1SIlya Dryomov t->min_size = -1; 31763244fa1SIlya Dryomov 31863244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 31963244fa1SIlya Dryomov } 32063244fa1SIlya Dryomov 32163244fa1SIlya Dryomov static void target_destroy(struct ceph_osd_request_target *t) 32263244fa1SIlya Dryomov { 32363244fa1SIlya Dryomov ceph_oid_destroy(&t->base_oid); 32463244fa1SIlya Dryomov ceph_oid_destroy(&t->target_oid); 32563244fa1SIlya Dryomov } 32663244fa1SIlya Dryomov 32763244fa1SIlya Dryomov /* 3283d14c5d2SYehuda Sadeh * requests 3293d14c5d2SYehuda Sadeh */ 3309e94af20SIlya Dryomov static void ceph_osdc_release_request(struct kref *kref) 3313d14c5d2SYehuda Sadeh { 3329e94af20SIlya Dryomov struct ceph_osd_request *req = container_of(kref, 3339e94af20SIlya Dryomov struct ceph_osd_request, r_kref); 3345476492fSAlex Elder unsigned int which; 3353d14c5d2SYehuda Sadeh 3369e94af20SIlya Dryomov dout("%s %p (r_request %p r_reply %p)\n", __func__, req, 3379e94af20SIlya Dryomov req->r_request, req->r_reply); 3386562d661SIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&req->r_node)); 3396562d661SIlya Dryomov WARN_ON(!list_empty(&req->r_req_lru_item)); 3406562d661SIlya Dryomov WARN_ON(!list_empty(&req->r_osd_item)); 3416562d661SIlya Dryomov WARN_ON(!list_empty(&req->r_linger_item)); 3426562d661SIlya Dryomov WARN_ON(!list_empty(&req->r_linger_osd_item)); 3436562d661SIlya Dryomov WARN_ON(req->r_osd); 3449e94af20SIlya Dryomov 3453d14c5d2SYehuda Sadeh if (req->r_request) 3463d14c5d2SYehuda Sadeh ceph_msg_put(req->r_request); 347ace6d3a9SAlex Elder if (req->r_reply) { 3488921d114SAlex Elder ceph_msg_revoke_incoming(req->r_reply); 349ab8cb34aSAlex Elder ceph_msg_put(req->r_reply); 350ace6d3a9SAlex Elder } 3510fff87ecSAlex Elder 3525476492fSAlex Elder for (which = 0; which < req->r_num_ops; which++) 3535476492fSAlex Elder osd_req_op_data_release(req, which); 3540fff87ecSAlex Elder 355a66dd383SIlya Dryomov target_destroy(&req->r_t); 3563d14c5d2SYehuda Sadeh ceph_put_snap_context(req->r_snapc); 357d30291b9SIlya Dryomov 3583d14c5d2SYehuda Sadeh if (req->r_mempool) 3593d14c5d2SYehuda Sadeh mempool_free(req, req->r_osdc->req_mempool); 3603f1af42aSIlya Dryomov else if (req->r_num_ops <= CEPH_OSD_SLAB_OPS) 3615522ae0bSAlex Elder kmem_cache_free(ceph_osd_request_cache, req); 3623f1af42aSIlya Dryomov else 3633f1af42aSIlya Dryomov kfree(req); 3643d14c5d2SYehuda Sadeh } 3659e94af20SIlya Dryomov 3669e94af20SIlya Dryomov void ceph_osdc_get_request(struct ceph_osd_request *req) 3679e94af20SIlya Dryomov { 3689e94af20SIlya Dryomov dout("%s %p (was %d)\n", __func__, req, 3699e94af20SIlya Dryomov atomic_read(&req->r_kref.refcount)); 3709e94af20SIlya Dryomov kref_get(&req->r_kref); 3719e94af20SIlya Dryomov } 3729e94af20SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_get_request); 3739e94af20SIlya Dryomov 3749e94af20SIlya Dryomov void ceph_osdc_put_request(struct ceph_osd_request *req) 3759e94af20SIlya Dryomov { 3763ed97d63SIlya Dryomov if (req) { 3779e94af20SIlya Dryomov dout("%s %p (was %d)\n", __func__, req, 3789e94af20SIlya Dryomov atomic_read(&req->r_kref.refcount)); 3799e94af20SIlya Dryomov kref_put(&req->r_kref, ceph_osdc_release_request); 3809e94af20SIlya Dryomov } 3813ed97d63SIlya Dryomov } 3829e94af20SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_put_request); 3833d14c5d2SYehuda Sadeh 3843d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, 3853d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 3861b83bef2SSage Weil unsigned int num_ops, 3873d14c5d2SYehuda Sadeh bool use_mempool, 38854a54007SAlex Elder gfp_t gfp_flags) 3893d14c5d2SYehuda Sadeh { 3903d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 3913d14c5d2SYehuda Sadeh 3923d14c5d2SYehuda Sadeh if (use_mempool) { 3933f1af42aSIlya Dryomov BUG_ON(num_ops > CEPH_OSD_SLAB_OPS); 3943d14c5d2SYehuda Sadeh req = mempool_alloc(osdc->req_mempool, gfp_flags); 3953f1af42aSIlya Dryomov } else if (num_ops <= CEPH_OSD_SLAB_OPS) { 3963f1af42aSIlya Dryomov req = kmem_cache_alloc(ceph_osd_request_cache, gfp_flags); 3973d14c5d2SYehuda Sadeh } else { 3983f1af42aSIlya Dryomov BUG_ON(num_ops > CEPH_OSD_MAX_OPS); 3993f1af42aSIlya Dryomov req = kmalloc(sizeof(*req) + num_ops * sizeof(req->r_ops[0]), 4003f1af42aSIlya Dryomov gfp_flags); 4013d14c5d2SYehuda Sadeh } 4023f1af42aSIlya Dryomov if (unlikely(!req)) 4033d14c5d2SYehuda Sadeh return NULL; 4043d14c5d2SYehuda Sadeh 4053f1af42aSIlya Dryomov /* req only, each op is zeroed in _osd_req_op_init() */ 4063f1af42aSIlya Dryomov memset(req, 0, sizeof(*req)); 4073f1af42aSIlya Dryomov 4083d14c5d2SYehuda Sadeh req->r_osdc = osdc; 4093d14c5d2SYehuda Sadeh req->r_mempool = use_mempool; 41079528734SAlex Elder req->r_num_ops = num_ops; 41184127282SIlya Dryomov req->r_snapid = CEPH_NOSNAP; 41284127282SIlya Dryomov req->r_snapc = ceph_get_snap_context(snapc); 4133d14c5d2SYehuda Sadeh 4143d14c5d2SYehuda Sadeh kref_init(&req->r_kref); 4153d14c5d2SYehuda Sadeh init_completion(&req->r_completion); 4163d14c5d2SYehuda Sadeh init_completion(&req->r_safe_completion); 417a978fa20SAlex Elder RB_CLEAR_NODE(&req->r_node); 4183d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&req->r_unsafe_item); 419a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&req->r_linger_item); 4201d0326b1SIlya Dryomov INIT_LIST_HEAD(&req->r_linger_osd_item); 421935b639aSSage Weil INIT_LIST_HEAD(&req->r_req_lru_item); 422cd43045cSSage Weil INIT_LIST_HEAD(&req->r_osd_item); 423cd43045cSSage Weil 424a66dd383SIlya Dryomov target_init(&req->r_t); 42522116525SIlya Dryomov 42613d1ad16SIlya Dryomov dout("%s req %p\n", __func__, req); 42713d1ad16SIlya Dryomov return req; 4283f1af42aSIlya Dryomov } 42913d1ad16SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_alloc_request); 4303f1af42aSIlya Dryomov 43113d1ad16SIlya Dryomov int ceph_osdc_alloc_messages(struct ceph_osd_request *req, gfp_t gfp) 43213d1ad16SIlya Dryomov { 43313d1ad16SIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 43413d1ad16SIlya Dryomov struct ceph_msg *msg; 43513d1ad16SIlya Dryomov int msg_size; 4363d14c5d2SYehuda Sadeh 437d30291b9SIlya Dryomov WARN_ON(ceph_oid_empty(&req->r_base_oid)); 438d30291b9SIlya Dryomov 43913d1ad16SIlya Dryomov /* create request message */ 440ae458f5aSIlya Dryomov msg_size = 4 + 4 + 4; /* client_inc, osdmap_epoch, flags */ 441ae458f5aSIlya Dryomov msg_size += 4 + 4 + 4 + 8; /* mtime, reassert_version */ 442ae458f5aSIlya Dryomov msg_size += 2 + 4 + 8 + 4 + 4; /* oloc */ 443ae458f5aSIlya Dryomov msg_size += 1 + 8 + 4 + 4; /* pgid */ 44413d1ad16SIlya Dryomov msg_size += 4 + req->r_base_oid.name_len; /* oid */ 44513d1ad16SIlya Dryomov msg_size += 2 + req->r_num_ops * sizeof(struct ceph_osd_op); 446ae458f5aSIlya Dryomov msg_size += 8; /* snapid */ 447ae458f5aSIlya Dryomov msg_size += 8; /* snap_seq */ 44813d1ad16SIlya Dryomov msg_size += 4 + 8 * (req->r_snapc ? req->r_snapc->num_snaps : 0); 449ae458f5aSIlya Dryomov msg_size += 4; /* retry_attempt */ 450ae458f5aSIlya Dryomov 45113d1ad16SIlya Dryomov if (req->r_mempool) 4523d14c5d2SYehuda Sadeh msg = ceph_msgpool_get(&osdc->msgpool_op, 0); 4533d14c5d2SYehuda Sadeh else 45413d1ad16SIlya Dryomov msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size, gfp, true); 45513d1ad16SIlya Dryomov if (!msg) 45613d1ad16SIlya Dryomov return -ENOMEM; 4573d14c5d2SYehuda Sadeh 4583d14c5d2SYehuda Sadeh memset(msg->front.iov_base, 0, msg->front.iov_len); 4593d14c5d2SYehuda Sadeh req->r_request = msg; 4603d14c5d2SYehuda Sadeh 46113d1ad16SIlya Dryomov /* create reply message */ 46213d1ad16SIlya Dryomov msg_size = OSD_OPREPLY_FRONT_LEN; 463711da55dSIlya Dryomov msg_size += req->r_base_oid.name_len; 464711da55dSIlya Dryomov msg_size += req->r_num_ops * sizeof(struct ceph_osd_op); 46513d1ad16SIlya Dryomov 46613d1ad16SIlya Dryomov if (req->r_mempool) 46713d1ad16SIlya Dryomov msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0); 46813d1ad16SIlya Dryomov else 46913d1ad16SIlya Dryomov msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, msg_size, gfp, true); 47013d1ad16SIlya Dryomov if (!msg) 47113d1ad16SIlya Dryomov return -ENOMEM; 47213d1ad16SIlya Dryomov 47313d1ad16SIlya Dryomov req->r_reply = msg; 47413d1ad16SIlya Dryomov 47513d1ad16SIlya Dryomov return 0; 47613d1ad16SIlya Dryomov } 47713d1ad16SIlya Dryomov EXPORT_SYMBOL(ceph_osdc_alloc_messages); 4783d14c5d2SYehuda Sadeh 479a8dd0a37SAlex Elder static bool osd_req_opcode_valid(u16 opcode) 480a8dd0a37SAlex Elder { 481a8dd0a37SAlex Elder switch (opcode) { 48270b5bfa3SIlya Dryomov #define GENERATE_CASE(op, opcode, str) case CEPH_OSD_OP_##op: return true; 48370b5bfa3SIlya Dryomov __CEPH_FORALL_OSD_OPS(GENERATE_CASE) 48470b5bfa3SIlya Dryomov #undef GENERATE_CASE 485a8dd0a37SAlex Elder default: 486a8dd0a37SAlex Elder return false; 487a8dd0a37SAlex Elder } 488a8dd0a37SAlex Elder } 489a8dd0a37SAlex Elder 49033803f33SAlex Elder /* 49133803f33SAlex Elder * This is an osd op init function for opcodes that have no data or 49233803f33SAlex Elder * other information associated with them. It also serves as a 49333803f33SAlex Elder * common init routine for all the other init functions, below. 49433803f33SAlex Elder */ 495c99d2d4aSAlex Elder static struct ceph_osd_req_op * 49649719778SAlex Elder _osd_req_op_init(struct ceph_osd_request *osd_req, unsigned int which, 497144cba14SYan, Zheng u16 opcode, u32 flags) 49833803f33SAlex Elder { 499c99d2d4aSAlex Elder struct ceph_osd_req_op *op; 500c99d2d4aSAlex Elder 501c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 50233803f33SAlex Elder BUG_ON(!osd_req_opcode_valid(opcode)); 50333803f33SAlex Elder 504c99d2d4aSAlex Elder op = &osd_req->r_ops[which]; 50533803f33SAlex Elder memset(op, 0, sizeof (*op)); 50633803f33SAlex Elder op->op = opcode; 507144cba14SYan, Zheng op->flags = flags; 508c99d2d4aSAlex Elder 509c99d2d4aSAlex Elder return op; 51033803f33SAlex Elder } 51133803f33SAlex Elder 51249719778SAlex Elder void osd_req_op_init(struct ceph_osd_request *osd_req, 513144cba14SYan, Zheng unsigned int which, u16 opcode, u32 flags) 51449719778SAlex Elder { 515144cba14SYan, Zheng (void)_osd_req_op_init(osd_req, which, opcode, flags); 51649719778SAlex Elder } 51749719778SAlex Elder EXPORT_SYMBOL(osd_req_op_init); 51849719778SAlex Elder 519c99d2d4aSAlex Elder void osd_req_op_extent_init(struct ceph_osd_request *osd_req, 520c99d2d4aSAlex Elder unsigned int which, u16 opcode, 52133803f33SAlex Elder u64 offset, u64 length, 52233803f33SAlex Elder u64 truncate_size, u32 truncate_seq) 52333803f33SAlex Elder { 524144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 525144cba14SYan, Zheng opcode, 0); 52633803f33SAlex Elder size_t payload_len = 0; 52733803f33SAlex Elder 528ad7a60deSLi Wang BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && 529e30b7577SIlya Dryomov opcode != CEPH_OSD_OP_WRITEFULL && opcode != CEPH_OSD_OP_ZERO && 530e30b7577SIlya Dryomov opcode != CEPH_OSD_OP_TRUNCATE); 53133803f33SAlex Elder 53233803f33SAlex Elder op->extent.offset = offset; 53333803f33SAlex Elder op->extent.length = length; 53433803f33SAlex Elder op->extent.truncate_size = truncate_size; 53533803f33SAlex Elder op->extent.truncate_seq = truncate_seq; 536e30b7577SIlya Dryomov if (opcode == CEPH_OSD_OP_WRITE || opcode == CEPH_OSD_OP_WRITEFULL) 53733803f33SAlex Elder payload_len += length; 53833803f33SAlex Elder 539de2aa102SIlya Dryomov op->indata_len = payload_len; 54033803f33SAlex Elder } 54133803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_init); 54233803f33SAlex Elder 543c99d2d4aSAlex Elder void osd_req_op_extent_update(struct ceph_osd_request *osd_req, 544c99d2d4aSAlex Elder unsigned int which, u64 length) 545e5975c7cSAlex Elder { 546c99d2d4aSAlex Elder struct ceph_osd_req_op *op; 547c99d2d4aSAlex Elder u64 previous; 548c99d2d4aSAlex Elder 549c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 550c99d2d4aSAlex Elder op = &osd_req->r_ops[which]; 551c99d2d4aSAlex Elder previous = op->extent.length; 552e5975c7cSAlex Elder 553e5975c7cSAlex Elder if (length == previous) 554e5975c7cSAlex Elder return; /* Nothing to do */ 555e5975c7cSAlex Elder BUG_ON(length > previous); 556e5975c7cSAlex Elder 557e5975c7cSAlex Elder op->extent.length = length; 558de2aa102SIlya Dryomov op->indata_len -= previous - length; 559e5975c7cSAlex Elder } 560e5975c7cSAlex Elder EXPORT_SYMBOL(osd_req_op_extent_update); 561e5975c7cSAlex Elder 5622c63f49aSYan, Zheng void osd_req_op_extent_dup_last(struct ceph_osd_request *osd_req, 5632c63f49aSYan, Zheng unsigned int which, u64 offset_inc) 5642c63f49aSYan, Zheng { 5652c63f49aSYan, Zheng struct ceph_osd_req_op *op, *prev_op; 5662c63f49aSYan, Zheng 5672c63f49aSYan, Zheng BUG_ON(which + 1 >= osd_req->r_num_ops); 5682c63f49aSYan, Zheng 5692c63f49aSYan, Zheng prev_op = &osd_req->r_ops[which]; 5702c63f49aSYan, Zheng op = _osd_req_op_init(osd_req, which + 1, prev_op->op, prev_op->flags); 5712c63f49aSYan, Zheng /* dup previous one */ 5722c63f49aSYan, Zheng op->indata_len = prev_op->indata_len; 5732c63f49aSYan, Zheng op->outdata_len = prev_op->outdata_len; 5742c63f49aSYan, Zheng op->extent = prev_op->extent; 5752c63f49aSYan, Zheng /* adjust offset */ 5762c63f49aSYan, Zheng op->extent.offset += offset_inc; 5772c63f49aSYan, Zheng op->extent.length -= offset_inc; 5782c63f49aSYan, Zheng 5792c63f49aSYan, Zheng if (op->op == CEPH_OSD_OP_WRITE || op->op == CEPH_OSD_OP_WRITEFULL) 5802c63f49aSYan, Zheng op->indata_len -= offset_inc; 5812c63f49aSYan, Zheng } 5822c63f49aSYan, Zheng EXPORT_SYMBOL(osd_req_op_extent_dup_last); 5832c63f49aSYan, Zheng 584c99d2d4aSAlex Elder void osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which, 58504017e29SAlex Elder u16 opcode, const char *class, const char *method) 58633803f33SAlex Elder { 587144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 588144cba14SYan, Zheng opcode, 0); 5895f562df5SAlex Elder struct ceph_pagelist *pagelist; 59033803f33SAlex Elder size_t payload_len = 0; 59133803f33SAlex Elder size_t size; 59233803f33SAlex Elder 59333803f33SAlex Elder BUG_ON(opcode != CEPH_OSD_OP_CALL); 59433803f33SAlex Elder 5955f562df5SAlex Elder pagelist = kmalloc(sizeof (*pagelist), GFP_NOFS); 5965f562df5SAlex Elder BUG_ON(!pagelist); 5975f562df5SAlex Elder ceph_pagelist_init(pagelist); 5985f562df5SAlex Elder 59933803f33SAlex Elder op->cls.class_name = class; 60033803f33SAlex Elder size = strlen(class); 60133803f33SAlex Elder BUG_ON(size > (size_t) U8_MAX); 60233803f33SAlex Elder op->cls.class_len = size; 6035f562df5SAlex Elder ceph_pagelist_append(pagelist, class, size); 60433803f33SAlex Elder payload_len += size; 60533803f33SAlex Elder 60633803f33SAlex Elder op->cls.method_name = method; 60733803f33SAlex Elder size = strlen(method); 60833803f33SAlex Elder BUG_ON(size > (size_t) U8_MAX); 60933803f33SAlex Elder op->cls.method_len = size; 6105f562df5SAlex Elder ceph_pagelist_append(pagelist, method, size); 61133803f33SAlex Elder payload_len += size; 61233803f33SAlex Elder 613a4ce40a9SAlex Elder osd_req_op_cls_request_info_pagelist(osd_req, which, pagelist); 6145f562df5SAlex Elder 615de2aa102SIlya Dryomov op->indata_len = payload_len; 61633803f33SAlex Elder } 61733803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_init); 6188c042b0dSAlex Elder 619d74b50beSYan, Zheng int osd_req_op_xattr_init(struct ceph_osd_request *osd_req, unsigned int which, 620d74b50beSYan, Zheng u16 opcode, const char *name, const void *value, 621d74b50beSYan, Zheng size_t size, u8 cmp_op, u8 cmp_mode) 622d74b50beSYan, Zheng { 623144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 624144cba14SYan, Zheng opcode, 0); 625d74b50beSYan, Zheng struct ceph_pagelist *pagelist; 626d74b50beSYan, Zheng size_t payload_len; 627d74b50beSYan, Zheng 628d74b50beSYan, Zheng BUG_ON(opcode != CEPH_OSD_OP_SETXATTR && opcode != CEPH_OSD_OP_CMPXATTR); 629d74b50beSYan, Zheng 630d74b50beSYan, Zheng pagelist = kmalloc(sizeof(*pagelist), GFP_NOFS); 631d74b50beSYan, Zheng if (!pagelist) 632d74b50beSYan, Zheng return -ENOMEM; 633d74b50beSYan, Zheng 634d74b50beSYan, Zheng ceph_pagelist_init(pagelist); 635d74b50beSYan, Zheng 636d74b50beSYan, Zheng payload_len = strlen(name); 637d74b50beSYan, Zheng op->xattr.name_len = payload_len; 638d74b50beSYan, Zheng ceph_pagelist_append(pagelist, name, payload_len); 639d74b50beSYan, Zheng 640d74b50beSYan, Zheng op->xattr.value_len = size; 641d74b50beSYan, Zheng ceph_pagelist_append(pagelist, value, size); 642d74b50beSYan, Zheng payload_len += size; 643d74b50beSYan, Zheng 644d74b50beSYan, Zheng op->xattr.cmp_op = cmp_op; 645d74b50beSYan, Zheng op->xattr.cmp_mode = cmp_mode; 646d74b50beSYan, Zheng 647d74b50beSYan, Zheng ceph_osd_data_pagelist_init(&op->xattr.osd_data, pagelist); 648de2aa102SIlya Dryomov op->indata_len = payload_len; 649d74b50beSYan, Zheng return 0; 650d74b50beSYan, Zheng } 651d74b50beSYan, Zheng EXPORT_SYMBOL(osd_req_op_xattr_init); 652d74b50beSYan, Zheng 653c99d2d4aSAlex Elder void osd_req_op_watch_init(struct ceph_osd_request *osd_req, 654c99d2d4aSAlex Elder unsigned int which, u16 opcode, 65533803f33SAlex Elder u64 cookie, u64 version, int flag) 65633803f33SAlex Elder { 657144cba14SYan, Zheng struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 658144cba14SYan, Zheng opcode, 0); 65933803f33SAlex Elder 660c99d2d4aSAlex Elder BUG_ON(opcode != CEPH_OSD_OP_NOTIFY_ACK && opcode != CEPH_OSD_OP_WATCH); 66133803f33SAlex Elder 66233803f33SAlex Elder op->watch.cookie = cookie; 6639ef1ee5aSAlex Elder op->watch.ver = version; 66433803f33SAlex Elder if (opcode == CEPH_OSD_OP_WATCH && flag) 66533803f33SAlex Elder op->watch.flag = (u8)1; 66633803f33SAlex Elder } 66733803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_watch_init); 66833803f33SAlex Elder 669c647b8a8SIlya Dryomov void osd_req_op_alloc_hint_init(struct ceph_osd_request *osd_req, 670c647b8a8SIlya Dryomov unsigned int which, 671c647b8a8SIlya Dryomov u64 expected_object_size, 672c647b8a8SIlya Dryomov u64 expected_write_size) 673c647b8a8SIlya Dryomov { 674c647b8a8SIlya Dryomov struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, 675144cba14SYan, Zheng CEPH_OSD_OP_SETALLOCHINT, 676144cba14SYan, Zheng 0); 677c647b8a8SIlya Dryomov 678c647b8a8SIlya Dryomov op->alloc_hint.expected_object_size = expected_object_size; 679c647b8a8SIlya Dryomov op->alloc_hint.expected_write_size = expected_write_size; 680c647b8a8SIlya Dryomov 681c647b8a8SIlya Dryomov /* 682c647b8a8SIlya Dryomov * CEPH_OSD_OP_SETALLOCHINT op is advisory and therefore deemed 683c647b8a8SIlya Dryomov * not worth a feature bit. Set FAILOK per-op flag to make 684c647b8a8SIlya Dryomov * sure older osds don't trip over an unsupported opcode. 685c647b8a8SIlya Dryomov */ 686c647b8a8SIlya Dryomov op->flags |= CEPH_OSD_OP_FLAG_FAILOK; 687c647b8a8SIlya Dryomov } 688c647b8a8SIlya Dryomov EXPORT_SYMBOL(osd_req_op_alloc_hint_init); 689c647b8a8SIlya Dryomov 69090af3602SAlex Elder static void ceph_osdc_msg_data_add(struct ceph_msg *msg, 691ec9123c5SAlex Elder struct ceph_osd_data *osd_data) 692ec9123c5SAlex Elder { 693ec9123c5SAlex Elder u64 length = ceph_osd_data_length(osd_data); 694ec9123c5SAlex Elder 695ec9123c5SAlex Elder if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { 696ec9123c5SAlex Elder BUG_ON(length > (u64) SIZE_MAX); 697ec9123c5SAlex Elder if (length) 69890af3602SAlex Elder ceph_msg_data_add_pages(msg, osd_data->pages, 699ec9123c5SAlex Elder length, osd_data->alignment); 700ec9123c5SAlex Elder } else if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGELIST) { 701ec9123c5SAlex Elder BUG_ON(!length); 70290af3602SAlex Elder ceph_msg_data_add_pagelist(msg, osd_data->pagelist); 703ec9123c5SAlex Elder #ifdef CONFIG_BLOCK 704ec9123c5SAlex Elder } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) { 70590af3602SAlex Elder ceph_msg_data_add_bio(msg, osd_data->bio, length); 706ec9123c5SAlex Elder #endif 707ec9123c5SAlex Elder } else { 708ec9123c5SAlex Elder BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_NONE); 709ec9123c5SAlex Elder } 710ec9123c5SAlex Elder } 711ec9123c5SAlex Elder 712bb873b53SIlya Dryomov static u32 osd_req_encode_op(struct ceph_osd_op *dst, 713bb873b53SIlya Dryomov const struct ceph_osd_req_op *src) 7143d14c5d2SYehuda Sadeh { 715a8dd0a37SAlex Elder if (WARN_ON(!osd_req_opcode_valid(src->op))) { 716a8dd0a37SAlex Elder pr_err("unrecognized osd opcode %d\n", src->op); 717a8dd0a37SAlex Elder 718a8dd0a37SAlex Elder return 0; 719a8dd0a37SAlex Elder } 7203d14c5d2SYehuda Sadeh 721065a68f9SAlex Elder switch (src->op) { 722fbfab539SAlex Elder case CEPH_OSD_OP_STAT: 723fbfab539SAlex Elder break; 7243d14c5d2SYehuda Sadeh case CEPH_OSD_OP_READ: 7253d14c5d2SYehuda Sadeh case CEPH_OSD_OP_WRITE: 726e30b7577SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 727ad7a60deSLi Wang case CEPH_OSD_OP_ZERO: 728ad7a60deSLi Wang case CEPH_OSD_OP_TRUNCATE: 729175face2SAlex Elder dst->extent.offset = cpu_to_le64(src->extent.offset); 730175face2SAlex Elder dst->extent.length = cpu_to_le64(src->extent.length); 7313d14c5d2SYehuda Sadeh dst->extent.truncate_size = 7323d14c5d2SYehuda Sadeh cpu_to_le64(src->extent.truncate_size); 7333d14c5d2SYehuda Sadeh dst->extent.truncate_seq = 7343d14c5d2SYehuda Sadeh cpu_to_le32(src->extent.truncate_seq); 7353d14c5d2SYehuda Sadeh break; 7363d14c5d2SYehuda Sadeh case CEPH_OSD_OP_CALL: 7373d14c5d2SYehuda Sadeh dst->cls.class_len = src->cls.class_len; 7383d14c5d2SYehuda Sadeh dst->cls.method_len = src->cls.method_len; 739bb873b53SIlya Dryomov dst->cls.indata_len = cpu_to_le32(src->cls.indata_len); 7403d14c5d2SYehuda Sadeh break; 7413d14c5d2SYehuda Sadeh case CEPH_OSD_OP_STARTSYNC: 7423d14c5d2SYehuda Sadeh break; 743a40c4f10SYehuda Sadeh case CEPH_OSD_OP_NOTIFY_ACK: 744a40c4f10SYehuda Sadeh case CEPH_OSD_OP_WATCH: 745a40c4f10SYehuda Sadeh dst->watch.cookie = cpu_to_le64(src->watch.cookie); 746a40c4f10SYehuda Sadeh dst->watch.ver = cpu_to_le64(src->watch.ver); 747a40c4f10SYehuda Sadeh dst->watch.flag = src->watch.flag; 748a40c4f10SYehuda Sadeh break; 749c647b8a8SIlya Dryomov case CEPH_OSD_OP_SETALLOCHINT: 750c647b8a8SIlya Dryomov dst->alloc_hint.expected_object_size = 751c647b8a8SIlya Dryomov cpu_to_le64(src->alloc_hint.expected_object_size); 752c647b8a8SIlya Dryomov dst->alloc_hint.expected_write_size = 753c647b8a8SIlya Dryomov cpu_to_le64(src->alloc_hint.expected_write_size); 754c647b8a8SIlya Dryomov break; 755d74b50beSYan, Zheng case CEPH_OSD_OP_SETXATTR: 756d74b50beSYan, Zheng case CEPH_OSD_OP_CMPXATTR: 757d74b50beSYan, Zheng dst->xattr.name_len = cpu_to_le32(src->xattr.name_len); 758d74b50beSYan, Zheng dst->xattr.value_len = cpu_to_le32(src->xattr.value_len); 759d74b50beSYan, Zheng dst->xattr.cmp_op = src->xattr.cmp_op; 760d74b50beSYan, Zheng dst->xattr.cmp_mode = src->xattr.cmp_mode; 761d74b50beSYan, Zheng break; 762864e9197SYan, Zheng case CEPH_OSD_OP_CREATE: 763864e9197SYan, Zheng case CEPH_OSD_OP_DELETE: 764864e9197SYan, Zheng break; 7653d14c5d2SYehuda Sadeh default: 7664c46459cSAlex Elder pr_err("unsupported osd opcode %s\n", 7678f63ca2dSAlex Elder ceph_osd_op_name(src->op)); 7684c46459cSAlex Elder WARN_ON(1); 769a8dd0a37SAlex Elder 770a8dd0a37SAlex Elder return 0; 7713d14c5d2SYehuda Sadeh } 7727b25bf5fSIlya Dryomov 773a8dd0a37SAlex Elder dst->op = cpu_to_le16(src->op); 7747b25bf5fSIlya Dryomov dst->flags = cpu_to_le32(src->flags); 775de2aa102SIlya Dryomov dst->payload_len = cpu_to_le32(src->indata_len); 776175face2SAlex Elder 777bb873b53SIlya Dryomov return src->indata_len; 7783d14c5d2SYehuda Sadeh } 7793d14c5d2SYehuda Sadeh 7803d14c5d2SYehuda Sadeh /* 7813d14c5d2SYehuda Sadeh * build new request AND message, calculate layout, and adjust file 7823d14c5d2SYehuda Sadeh * extent as needed. 7833d14c5d2SYehuda Sadeh * 7843d14c5d2SYehuda Sadeh * if the file was recently truncated, we include information about its 7853d14c5d2SYehuda Sadeh * old and new size so that the object can be updated appropriately. (we 7863d14c5d2SYehuda Sadeh * avoid synchronously deleting truncated objects because it's slow.) 7873d14c5d2SYehuda Sadeh * 7883d14c5d2SYehuda Sadeh * if @do_sync, include a 'startsync' command so that the osd will flush 7893d14c5d2SYehuda Sadeh * data quickly. 7903d14c5d2SYehuda Sadeh */ 7913d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, 7923d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 7933d14c5d2SYehuda Sadeh struct ceph_vino vino, 794715e4cd4SYan, Zheng u64 off, u64 *plen, 795715e4cd4SYan, Zheng unsigned int which, int num_ops, 7963d14c5d2SYehuda Sadeh int opcode, int flags, 7973d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 7983d14c5d2SYehuda Sadeh u32 truncate_seq, 7993d14c5d2SYehuda Sadeh u64 truncate_size, 800153e5167SAlex Elder bool use_mempool) 8013d14c5d2SYehuda Sadeh { 8023d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 80375d1c941SAlex Elder u64 objnum = 0; 80475d1c941SAlex Elder u64 objoff = 0; 80575d1c941SAlex Elder u64 objlen = 0; 8066816282dSSage Weil int r; 8073d14c5d2SYehuda Sadeh 808ad7a60deSLi Wang BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && 809864e9197SYan, Zheng opcode != CEPH_OSD_OP_ZERO && opcode != CEPH_OSD_OP_TRUNCATE && 810864e9197SYan, Zheng opcode != CEPH_OSD_OP_CREATE && opcode != CEPH_OSD_OP_DELETE); 8113d14c5d2SYehuda Sadeh 812acead002SAlex Elder req = ceph_osdc_alloc_request(osdc, snapc, num_ops, use_mempool, 813ae7ca4a3SAlex Elder GFP_NOFS); 81413d1ad16SIlya Dryomov if (!req) { 81513d1ad16SIlya Dryomov r = -ENOMEM; 81613d1ad16SIlya Dryomov goto fail; 81713d1ad16SIlya Dryomov } 81879528734SAlex Elder 8193d14c5d2SYehuda Sadeh /* calculate max write size */ 820a19dadfbSAlex Elder r = calc_layout(layout, off, plen, &objnum, &objoff, &objlen); 82113d1ad16SIlya Dryomov if (r) 82213d1ad16SIlya Dryomov goto fail; 823a19dadfbSAlex Elder 824864e9197SYan, Zheng if (opcode == CEPH_OSD_OP_CREATE || opcode == CEPH_OSD_OP_DELETE) { 825144cba14SYan, Zheng osd_req_op_init(req, which, opcode, 0); 826864e9197SYan, Zheng } else { 827864e9197SYan, Zheng u32 object_size = le32_to_cpu(layout->fl_object_size); 828864e9197SYan, Zheng u32 object_base = off - objoff; 829ccca4e37SYan, Zheng if (!(truncate_seq == 1 && truncate_size == -1ULL)) { 830d18d1e28SAlex Elder if (truncate_size <= object_base) { 831d18d1e28SAlex Elder truncate_size = 0; 832d18d1e28SAlex Elder } else { 833d18d1e28SAlex Elder truncate_size -= object_base; 834d18d1e28SAlex Elder if (truncate_size > object_size) 835d18d1e28SAlex Elder truncate_size = object_size; 836d18d1e28SAlex Elder } 837ccca4e37SYan, Zheng } 838715e4cd4SYan, Zheng osd_req_op_extent_init(req, which, opcode, objoff, objlen, 839b0270324SAlex Elder truncate_size, truncate_seq); 840864e9197SYan, Zheng } 841d18d1e28SAlex Elder 842bb873b53SIlya Dryomov req->r_flags = flags; 8433c972c95SIlya Dryomov req->r_base_oloc.pool = ceph_file_layout_pg_pool(*layout); 844d30291b9SIlya Dryomov ceph_oid_printf(&req->r_base_oid, "%llx.%08llx", vino.ino, objnum); 845dbe0fc41SAlex Elder 846bb873b53SIlya Dryomov req->r_snapid = vino.snap; 847bb873b53SIlya Dryomov if (flags & CEPH_OSD_FLAG_WRITE) 848bb873b53SIlya Dryomov req->r_data_offset = off; 849bb873b53SIlya Dryomov 85013d1ad16SIlya Dryomov r = ceph_osdc_alloc_messages(req, GFP_NOFS); 85113d1ad16SIlya Dryomov if (r) 85213d1ad16SIlya Dryomov goto fail; 85313d1ad16SIlya Dryomov 8543d14c5d2SYehuda Sadeh return req; 85513d1ad16SIlya Dryomov 85613d1ad16SIlya Dryomov fail: 85713d1ad16SIlya Dryomov ceph_osdc_put_request(req); 85813d1ad16SIlya Dryomov return ERR_PTR(r); 8593d14c5d2SYehuda Sadeh } 8603d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_new_request); 8613d14c5d2SYehuda Sadeh 8623d14c5d2SYehuda Sadeh /* 8633d14c5d2SYehuda Sadeh * We keep osd requests in an rbtree, sorted by ->r_tid. 8643d14c5d2SYehuda Sadeh */ 865fcd00b68SIlya Dryomov DEFINE_RB_FUNCS(request, struct ceph_osd_request, r_tid, r_node) 8663d14c5d2SYehuda Sadeh 8670247a0cfSIlya Dryomov static bool osd_homeless(struct ceph_osd *osd) 8680247a0cfSIlya Dryomov { 8690247a0cfSIlya Dryomov return osd->o_osd == CEPH_HOMELESS_OSD; 8700247a0cfSIlya Dryomov } 8710247a0cfSIlya Dryomov 8723d14c5d2SYehuda Sadeh static struct ceph_osd_request * 8733d14c5d2SYehuda Sadeh __lookup_request_ge(struct ceph_osd_client *osdc, 8743d14c5d2SYehuda Sadeh u64 tid) 8753d14c5d2SYehuda Sadeh { 8763d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 8773d14c5d2SYehuda Sadeh struct rb_node *n = osdc->requests.rb_node; 8783d14c5d2SYehuda Sadeh 8793d14c5d2SYehuda Sadeh while (n) { 8803d14c5d2SYehuda Sadeh req = rb_entry(n, struct ceph_osd_request, r_node); 8813d14c5d2SYehuda Sadeh if (tid < req->r_tid) { 8823d14c5d2SYehuda Sadeh if (!n->rb_left) 8833d14c5d2SYehuda Sadeh return req; 8843d14c5d2SYehuda Sadeh n = n->rb_left; 8853d14c5d2SYehuda Sadeh } else if (tid > req->r_tid) { 8863d14c5d2SYehuda Sadeh n = n->rb_right; 8873d14c5d2SYehuda Sadeh } else { 8883d14c5d2SYehuda Sadeh return req; 8893d14c5d2SYehuda Sadeh } 8903d14c5d2SYehuda Sadeh } 8913d14c5d2SYehuda Sadeh return NULL; 8923d14c5d2SYehuda Sadeh } 8933d14c5d2SYehuda Sadeh 8942cc6128aSIlya Dryomov static void __kick_linger_request(struct ceph_osd_request *req) 8952cc6128aSIlya Dryomov { 8962cc6128aSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 8972cc6128aSIlya Dryomov struct ceph_osd *osd = req->r_osd; 8982cc6128aSIlya Dryomov 8992cc6128aSIlya Dryomov /* 9002cc6128aSIlya Dryomov * Linger requests need to be resent with a new tid to avoid 9012cc6128aSIlya Dryomov * the dup op detection logic on the OSDs. Achieve this with 9022cc6128aSIlya Dryomov * a re-register dance instead of open-coding. 9032cc6128aSIlya Dryomov */ 9042cc6128aSIlya Dryomov ceph_osdc_get_request(req); 9052cc6128aSIlya Dryomov if (!list_empty(&req->r_linger_item)) 9062cc6128aSIlya Dryomov __unregister_linger_request(osdc, req); 9072cc6128aSIlya Dryomov else 9082cc6128aSIlya Dryomov __unregister_request(osdc, req); 9092cc6128aSIlya Dryomov __register_request(osdc, req); 9102cc6128aSIlya Dryomov ceph_osdc_put_request(req); 9112cc6128aSIlya Dryomov 9122cc6128aSIlya Dryomov /* 9132cc6128aSIlya Dryomov * Unless request has been registered as both normal and 9142cc6128aSIlya Dryomov * lingering, __unregister{,_linger}_request clears r_osd. 9152cc6128aSIlya Dryomov * However, here we need to preserve r_osd to make sure we 9162cc6128aSIlya Dryomov * requeue on the same OSD. 9172cc6128aSIlya Dryomov */ 9182cc6128aSIlya Dryomov WARN_ON(req->r_osd || !osd); 9192cc6128aSIlya Dryomov req->r_osd = osd; 9202cc6128aSIlya Dryomov 9212cc6128aSIlya Dryomov dout("%s requeueing %p tid %llu\n", __func__, req, req->r_tid); 9222cc6128aSIlya Dryomov __enqueue_request(req); 9232cc6128aSIlya Dryomov } 9242cc6128aSIlya Dryomov 9256f6c7006SSage Weil /* 9266f6c7006SSage Weil * Resubmit requests pending on the given osd. 9276f6c7006SSage Weil */ 9286f6c7006SSage Weil static void __kick_osd_requests(struct ceph_osd_client *osdc, 9296f6c7006SSage Weil struct ceph_osd *osd) 9306f6c7006SSage Weil { 931a40c4f10SYehuda Sadeh struct ceph_osd_request *req, *nreq; 932e02493c0SAlex Elder LIST_HEAD(resend); 9332cc6128aSIlya Dryomov LIST_HEAD(resend_linger); 9346f6c7006SSage Weil int err; 9356f6c7006SSage Weil 9362cc6128aSIlya Dryomov dout("%s osd%d\n", __func__, osd->o_osd); 9376f6c7006SSage Weil err = __reset_osd(osdc, osd); 938685a7555SAlex Elder if (err) 9396f6c7006SSage Weil return; 9402cc6128aSIlya Dryomov 941e02493c0SAlex Elder /* 942e02493c0SAlex Elder * Build up a list of requests to resend by traversing the 943e02493c0SAlex Elder * osd's list of requests. Requests for a given object are 944e02493c0SAlex Elder * sent in tid order, and that is also the order they're 945e02493c0SAlex Elder * kept on this list. Therefore all requests that are in 946e02493c0SAlex Elder * flight will be found first, followed by all requests that 947e02493c0SAlex Elder * have not yet been sent. And to resend requests while 948e02493c0SAlex Elder * preserving this order we will want to put any sent 949e02493c0SAlex Elder * requests back on the front of the osd client's unsent 950e02493c0SAlex Elder * list. 951e02493c0SAlex Elder * 952e02493c0SAlex Elder * So we build a separate ordered list of already-sent 953e02493c0SAlex Elder * requests for the affected osd and splice it onto the 954e02493c0SAlex Elder * front of the osd client's unsent list. Once we've seen a 955e02493c0SAlex Elder * request that has not yet been sent we're done. Those 956e02493c0SAlex Elder * requests are already sitting right where they belong. 957e02493c0SAlex Elder */ 9586f6c7006SSage Weil list_for_each_entry(req, &osd->o_requests, r_osd_item) { 959e02493c0SAlex Elder if (!req->r_sent) 960e02493c0SAlex Elder break; 9612cc6128aSIlya Dryomov 9622cc6128aSIlya Dryomov if (!req->r_linger) { 9632cc6128aSIlya Dryomov dout("%s requeueing %p tid %llu\n", __func__, req, 9642cc6128aSIlya Dryomov req->r_tid); 965e02493c0SAlex Elder list_move_tail(&req->r_req_lru_item, &resend); 9666f6c7006SSage Weil req->r_flags |= CEPH_OSD_FLAG_RETRY; 9672cc6128aSIlya Dryomov } else { 9682cc6128aSIlya Dryomov list_move_tail(&req->r_req_lru_item, &resend_linger); 9692cc6128aSIlya Dryomov } 9706f6c7006SSage Weil } 971e02493c0SAlex Elder list_splice(&resend, &osdc->req_unsent); 972a40c4f10SYehuda Sadeh 973e02493c0SAlex Elder /* 9742cc6128aSIlya Dryomov * Both registered and not yet registered linger requests are 9752cc6128aSIlya Dryomov * enqueued with a new tid on the same OSD. We add/move them 9762cc6128aSIlya Dryomov * to req_unsent/o_requests at the end to keep things in tid 9772cc6128aSIlya Dryomov * order. 978e02493c0SAlex Elder */ 979a40c4f10SYehuda Sadeh list_for_each_entry_safe(req, nreq, &osd->o_linger_requests, 9801d0326b1SIlya Dryomov r_linger_osd_item) { 9812cc6128aSIlya Dryomov WARN_ON(!list_empty(&req->r_req_lru_item)); 9822cc6128aSIlya Dryomov __kick_linger_request(req); 983a40c4f10SYehuda Sadeh } 9842cc6128aSIlya Dryomov 9852cc6128aSIlya Dryomov list_for_each_entry_safe(req, nreq, &resend_linger, r_req_lru_item) 9862cc6128aSIlya Dryomov __kick_linger_request(req); 9876f6c7006SSage Weil } 9886f6c7006SSage Weil 9893d14c5d2SYehuda Sadeh /* 9903d14c5d2SYehuda Sadeh * If the osd connection drops, we need to resubmit all requests. 9913d14c5d2SYehuda Sadeh */ 9923d14c5d2SYehuda Sadeh static void osd_reset(struct ceph_connection *con) 9933d14c5d2SYehuda Sadeh { 9943d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 9953d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc; 9963d14c5d2SYehuda Sadeh 9973d14c5d2SYehuda Sadeh if (!osd) 9983d14c5d2SYehuda Sadeh return; 9993d14c5d2SYehuda Sadeh dout("osd_reset osd%d\n", osd->o_osd); 10003d14c5d2SYehuda Sadeh osdc = osd->o_osdc; 10013d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 100283aff95eSSage Weil mutex_lock(&osdc->request_mutex); 100383aff95eSSage Weil __kick_osd_requests(osdc, osd); 1004f9d25199SAlex Elder __send_queued(osdc); 100583aff95eSSage Weil mutex_unlock(&osdc->request_mutex); 10063d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 10073d14c5d2SYehuda Sadeh } 10083d14c5d2SYehuda Sadeh 10093d14c5d2SYehuda Sadeh /* 10100247a0cfSIlya Dryomov * Assumes @osd is zero-initialized. 10110247a0cfSIlya Dryomov */ 10120247a0cfSIlya Dryomov static void osd_init(struct ceph_osd *osd) 10130247a0cfSIlya Dryomov { 10140247a0cfSIlya Dryomov atomic_set(&osd->o_ref, 1); 10150247a0cfSIlya Dryomov RB_CLEAR_NODE(&osd->o_node); 10160247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_requests); 10170247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_linger_requests); 10180247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_osd_lru); 10190247a0cfSIlya Dryomov INIT_LIST_HEAD(&osd->o_keepalive_item); 10200247a0cfSIlya Dryomov osd->o_incarnation = 1; 10210247a0cfSIlya Dryomov } 10220247a0cfSIlya Dryomov 10230247a0cfSIlya Dryomov static void osd_cleanup(struct ceph_osd *osd) 10240247a0cfSIlya Dryomov { 10250247a0cfSIlya Dryomov WARN_ON(!RB_EMPTY_NODE(&osd->o_node)); 10260247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_requests)); 10270247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_linger_requests)); 10280247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_osd_lru)); 10290247a0cfSIlya Dryomov WARN_ON(!list_empty(&osd->o_keepalive_item)); 10300247a0cfSIlya Dryomov 10310247a0cfSIlya Dryomov if (osd->o_auth.authorizer) { 10320247a0cfSIlya Dryomov WARN_ON(osd_homeless(osd)); 10330247a0cfSIlya Dryomov ceph_auth_destroy_authorizer(osd->o_auth.authorizer); 10340247a0cfSIlya Dryomov } 10350247a0cfSIlya Dryomov } 10360247a0cfSIlya Dryomov 10370247a0cfSIlya Dryomov /* 10383d14c5d2SYehuda Sadeh * Track open sessions with osds. 10393d14c5d2SYehuda Sadeh */ 1040e10006f8SAlex Elder static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum) 10413d14c5d2SYehuda Sadeh { 10423d14c5d2SYehuda Sadeh struct ceph_osd *osd; 10433d14c5d2SYehuda Sadeh 10440247a0cfSIlya Dryomov WARN_ON(onum == CEPH_HOMELESS_OSD); 10450247a0cfSIlya Dryomov 10467a28f59bSIlya Dryomov osd = kzalloc(sizeof(*osd), GFP_NOIO | __GFP_NOFAIL); 10470247a0cfSIlya Dryomov osd_init(osd); 10483d14c5d2SYehuda Sadeh osd->o_osdc = osdc; 1049e10006f8SAlex Elder osd->o_osd = onum; 10503d14c5d2SYehuda Sadeh 1051b7a9e5ddSSage Weil ceph_con_init(&osd->o_con, osd, &osd_con_ops, &osdc->client->msgr); 10523d14c5d2SYehuda Sadeh 10533d14c5d2SYehuda Sadeh return osd; 10543d14c5d2SYehuda Sadeh } 10553d14c5d2SYehuda Sadeh 10563d14c5d2SYehuda Sadeh static struct ceph_osd *get_osd(struct ceph_osd *osd) 10573d14c5d2SYehuda Sadeh { 10583d14c5d2SYehuda Sadeh if (atomic_inc_not_zero(&osd->o_ref)) { 10593d14c5d2SYehuda Sadeh dout("get_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref)-1, 10603d14c5d2SYehuda Sadeh atomic_read(&osd->o_ref)); 10613d14c5d2SYehuda Sadeh return osd; 10623d14c5d2SYehuda Sadeh } else { 10633d14c5d2SYehuda Sadeh dout("get_osd %p FAIL\n", osd); 10643d14c5d2SYehuda Sadeh return NULL; 10653d14c5d2SYehuda Sadeh } 10663d14c5d2SYehuda Sadeh } 10673d14c5d2SYehuda Sadeh 10683d14c5d2SYehuda Sadeh static void put_osd(struct ceph_osd *osd) 10693d14c5d2SYehuda Sadeh { 10703d14c5d2SYehuda Sadeh dout("put_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref), 10713d14c5d2SYehuda Sadeh atomic_read(&osd->o_ref) - 1); 1072b28ec2f3SIlya Dryomov if (atomic_dec_and_test(&osd->o_ref)) { 10730247a0cfSIlya Dryomov osd_cleanup(osd); 10743d14c5d2SYehuda Sadeh kfree(osd); 10753d14c5d2SYehuda Sadeh } 10763d14c5d2SYehuda Sadeh } 10773d14c5d2SYehuda Sadeh 1078fcd00b68SIlya Dryomov DEFINE_RB_FUNCS(osd, struct ceph_osd, o_osd, o_node) 1079fcd00b68SIlya Dryomov 10803d14c5d2SYehuda Sadeh /* 10813d14c5d2SYehuda Sadeh * remove an osd from our map 10823d14c5d2SYehuda Sadeh */ 10833d14c5d2SYehuda Sadeh static void __remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) 10843d14c5d2SYehuda Sadeh { 10857eb71e03SIlya Dryomov dout("%s %p osd%d\n", __func__, osd, osd->o_osd); 1086cc9f1f51SIlya Dryomov WARN_ON(!list_empty(&osd->o_requests)); 1087cc9f1f51SIlya Dryomov WARN_ON(!list_empty(&osd->o_linger_requests)); 10887c6e6fc5SIlya Dryomov 10893d14c5d2SYehuda Sadeh list_del_init(&osd->o_osd_lru); 1090fcd00b68SIlya Dryomov erase_osd(&osdc->osds, osd); 10917eb71e03SIlya Dryomov } 10927eb71e03SIlya Dryomov 10937eb71e03SIlya Dryomov static void remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) 10947eb71e03SIlya Dryomov { 10957eb71e03SIlya Dryomov dout("%s %p osd%d\n", __func__, osd, osd->o_osd); 10967eb71e03SIlya Dryomov 10977eb71e03SIlya Dryomov if (!RB_EMPTY_NODE(&osd->o_node)) { 10983d14c5d2SYehuda Sadeh ceph_con_close(&osd->o_con); 10997eb71e03SIlya Dryomov __remove_osd(osdc, osd); 11003d14c5d2SYehuda Sadeh put_osd(osd); 11013d14c5d2SYehuda Sadeh } 11027eb71e03SIlya Dryomov } 11033d14c5d2SYehuda Sadeh 11049dd2845cSIlya Dryomov static void __move_osd_to_lru(struct ceph_osd *osd) 11053d14c5d2SYehuda Sadeh { 11069dd2845cSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 11079dd2845cSIlya Dryomov 11089dd2845cSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 11093d14c5d2SYehuda Sadeh BUG_ON(!list_empty(&osd->o_osd_lru)); 1110bbf37ec3SIlya Dryomov 11119dd2845cSIlya Dryomov spin_lock(&osdc->osd_lru_lock); 11123d14c5d2SYehuda Sadeh list_add_tail(&osd->o_osd_lru, &osdc->osd_lru); 11139dd2845cSIlya Dryomov spin_unlock(&osdc->osd_lru_lock); 11149dd2845cSIlya Dryomov 1115a319bf56SIlya Dryomov osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl; 11163d14c5d2SYehuda Sadeh } 11173d14c5d2SYehuda Sadeh 11189dd2845cSIlya Dryomov static void maybe_move_osd_to_lru(struct ceph_osd *osd) 1119bbf37ec3SIlya Dryomov { 1120bbf37ec3SIlya Dryomov if (list_empty(&osd->o_requests) && 1121bbf37ec3SIlya Dryomov list_empty(&osd->o_linger_requests)) 11229dd2845cSIlya Dryomov __move_osd_to_lru(osd); 1123bbf37ec3SIlya Dryomov } 1124bbf37ec3SIlya Dryomov 11253d14c5d2SYehuda Sadeh static void __remove_osd_from_lru(struct ceph_osd *osd) 11263d14c5d2SYehuda Sadeh { 11279dd2845cSIlya Dryomov struct ceph_osd_client *osdc = osd->o_osdc; 11289dd2845cSIlya Dryomov 11299dd2845cSIlya Dryomov dout("%s osd %p osd%d\n", __func__, osd, osd->o_osd); 11309dd2845cSIlya Dryomov 11319dd2845cSIlya Dryomov spin_lock(&osdc->osd_lru_lock); 11323d14c5d2SYehuda Sadeh if (!list_empty(&osd->o_osd_lru)) 11333d14c5d2SYehuda Sadeh list_del_init(&osd->o_osd_lru); 11349dd2845cSIlya Dryomov spin_unlock(&osdc->osd_lru_lock); 11353d14c5d2SYehuda Sadeh } 11363d14c5d2SYehuda Sadeh 11373d14c5d2SYehuda Sadeh /* 11383d14c5d2SYehuda Sadeh * reset osd connect 11393d14c5d2SYehuda Sadeh */ 11403d14c5d2SYehuda Sadeh static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) 11413d14c5d2SYehuda Sadeh { 1142c3acb181SAlex Elder struct ceph_entity_addr *peer_addr; 11433d14c5d2SYehuda Sadeh 11443d14c5d2SYehuda Sadeh dout("__reset_osd %p osd%d\n", osd, osd->o_osd); 1145a40c4f10SYehuda Sadeh if (list_empty(&osd->o_requests) && 1146a40c4f10SYehuda Sadeh list_empty(&osd->o_linger_requests)) { 11477eb71e03SIlya Dryomov remove_osd(osdc, osd); 1148c3acb181SAlex Elder return -ENODEV; 1149c3acb181SAlex Elder } 1150c3acb181SAlex Elder 1151c3acb181SAlex Elder peer_addr = &osdc->osdmap->osd_addr[osd->o_osd]; 1152c3acb181SAlex Elder if (!memcmp(peer_addr, &osd->o_con.peer_addr, sizeof (*peer_addr)) && 11533d14c5d2SYehuda Sadeh !ceph_con_opened(&osd->o_con)) { 1154c3acb181SAlex Elder struct ceph_osd_request *req; 1155c3acb181SAlex Elder 11563d14c5d2SYehuda Sadeh dout("osd addr hasn't changed and connection never opened, " 11570b4af2e8SIlya Dryomov "letting msgr retry\n"); 11583d14c5d2SYehuda Sadeh /* touch each r_stamp for handle_timeout()'s benfit */ 11593d14c5d2SYehuda Sadeh list_for_each_entry(req, &osd->o_requests, r_osd_item) 11603d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 1161c3acb181SAlex Elder 1162c3acb181SAlex Elder return -EAGAIN; 11633d14c5d2SYehuda Sadeh } 1164c3acb181SAlex Elder 1165c3acb181SAlex Elder ceph_con_close(&osd->o_con); 1166c3acb181SAlex Elder ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, peer_addr); 1167c3acb181SAlex Elder osd->o_incarnation++; 1168c3acb181SAlex Elder 1169c3acb181SAlex Elder return 0; 11703d14c5d2SYehuda Sadeh } 11713d14c5d2SYehuda Sadeh 11723d14c5d2SYehuda Sadeh /* 11733d14c5d2SYehuda Sadeh * Register request, assign tid. If this is the first request, set up 11743d14c5d2SYehuda Sadeh * the timeout event. 11753d14c5d2SYehuda Sadeh */ 1176a40c4f10SYehuda Sadeh static void __register_request(struct ceph_osd_client *osdc, 11773d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 11783d14c5d2SYehuda Sadeh { 11793d14c5d2SYehuda Sadeh req->r_tid = ++osdc->last_tid; 11803d14c5d2SYehuda Sadeh req->r_request->hdr.tid = cpu_to_le64(req->r_tid); 118177f38e0eSSage Weil dout("__register_request %p tid %lld\n", req, req->r_tid); 1182fcd00b68SIlya Dryomov insert_request(&osdc->requests, req); 11833d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 11843d14c5d2SYehuda Sadeh osdc->num_requests++; 1185a40c4f10SYehuda Sadeh } 1186a40c4f10SYehuda Sadeh 11873d14c5d2SYehuda Sadeh /* 11883d14c5d2SYehuda Sadeh * called under osdc->request_mutex 11893d14c5d2SYehuda Sadeh */ 11903d14c5d2SYehuda Sadeh static void __unregister_request(struct ceph_osd_client *osdc, 11913d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 11923d14c5d2SYehuda Sadeh { 119335f9f8a0SSage Weil if (RB_EMPTY_NODE(&req->r_node)) { 119435f9f8a0SSage Weil dout("__unregister_request %p tid %lld not registered\n", 119535f9f8a0SSage Weil req, req->r_tid); 119635f9f8a0SSage Weil return; 119735f9f8a0SSage Weil } 119835f9f8a0SSage Weil 11993d14c5d2SYehuda Sadeh dout("__unregister_request %p tid %lld\n", req, req->r_tid); 1200fcd00b68SIlya Dryomov erase_request(&osdc->requests, req); 12013d14c5d2SYehuda Sadeh osdc->num_requests--; 12023d14c5d2SYehuda Sadeh 12033d14c5d2SYehuda Sadeh if (req->r_osd) { 12043d14c5d2SYehuda Sadeh /* make sure the original request isn't in flight. */ 12056740a845SAlex Elder ceph_msg_revoke(req->r_request); 12063d14c5d2SYehuda Sadeh 12073d14c5d2SYehuda Sadeh list_del_init(&req->r_osd_item); 12089dd2845cSIlya Dryomov maybe_move_osd_to_lru(req->r_osd); 12094f23409eSIlya Dryomov if (list_empty(&req->r_linger_osd_item)) 12103d14c5d2SYehuda Sadeh req->r_osd = NULL; 12113d14c5d2SYehuda Sadeh } 12123d14c5d2SYehuda Sadeh 12137d5f2481SAlex Elder list_del_init(&req->r_req_lru_item); 12143d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 12153d14c5d2SYehuda Sadeh } 12163d14c5d2SYehuda Sadeh 12173d14c5d2SYehuda Sadeh /* 12183d14c5d2SYehuda Sadeh * Cancel a previously queued request message 12193d14c5d2SYehuda Sadeh */ 12203d14c5d2SYehuda Sadeh static void __cancel_request(struct ceph_osd_request *req) 12213d14c5d2SYehuda Sadeh { 12223d14c5d2SYehuda Sadeh if (req->r_sent && req->r_osd) { 12236740a845SAlex Elder ceph_msg_revoke(req->r_request); 12243d14c5d2SYehuda Sadeh req->r_sent = 0; 12253d14c5d2SYehuda Sadeh } 12263d14c5d2SYehuda Sadeh } 12273d14c5d2SYehuda Sadeh 1228a40c4f10SYehuda Sadeh static void __register_linger_request(struct ceph_osd_client *osdc, 1229a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1230a40c4f10SYehuda Sadeh { 1231af593064SIlya Dryomov dout("%s %p tid %llu\n", __func__, req, req->r_tid); 1232af593064SIlya Dryomov WARN_ON(!req->r_linger); 1233af593064SIlya Dryomov 123496e4dac6SAlex Elder ceph_osdc_get_request(req); 1235a40c4f10SYehuda Sadeh list_add_tail(&req->r_linger_item, &osdc->req_linger); 12366194ea89SSage Weil if (req->r_osd) 12371d0326b1SIlya Dryomov list_add_tail(&req->r_linger_osd_item, 12386194ea89SSage Weil &req->r_osd->o_linger_requests); 1239a40c4f10SYehuda Sadeh } 1240a40c4f10SYehuda Sadeh 1241a40c4f10SYehuda Sadeh static void __unregister_linger_request(struct ceph_osd_client *osdc, 1242a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1243a40c4f10SYehuda Sadeh { 1244af593064SIlya Dryomov WARN_ON(!req->r_linger); 1245af593064SIlya Dryomov 1246af593064SIlya Dryomov if (list_empty(&req->r_linger_item)) { 1247af593064SIlya Dryomov dout("%s %p tid %llu not registered\n", __func__, req, 1248af593064SIlya Dryomov req->r_tid); 1249af593064SIlya Dryomov return; 1250af593064SIlya Dryomov } 1251af593064SIlya Dryomov 1252af593064SIlya Dryomov dout("%s %p tid %llu\n", __func__, req, req->r_tid); 1253a40c4f10SYehuda Sadeh list_del_init(&req->r_linger_item); 1254af593064SIlya Dryomov 125561c74035SAlex Elder if (req->r_osd) { 12561d0326b1SIlya Dryomov list_del_init(&req->r_linger_osd_item); 12579dd2845cSIlya Dryomov maybe_move_osd_to_lru(req->r_osd); 1258fbdb9190SSage Weil if (list_empty(&req->r_osd_item)) 1259a40c4f10SYehuda Sadeh req->r_osd = NULL; 1260a40c4f10SYehuda Sadeh } 126196e4dac6SAlex Elder ceph_osdc_put_request(req); 1262a40c4f10SYehuda Sadeh } 1263a40c4f10SYehuda Sadeh 1264a40c4f10SYehuda Sadeh void ceph_osdc_set_request_linger(struct ceph_osd_client *osdc, 1265a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1266a40c4f10SYehuda Sadeh { 1267a40c4f10SYehuda Sadeh if (!req->r_linger) { 1268a40c4f10SYehuda Sadeh dout("set_request_linger %p\n", req); 1269a40c4f10SYehuda Sadeh req->r_linger = 1; 1270a40c4f10SYehuda Sadeh } 1271a40c4f10SYehuda Sadeh } 1272a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_set_request_linger); 1273a40c4f10SYehuda Sadeh 127463244fa1SIlya Dryomov static bool __pool_full(struct ceph_pg_pool_info *pi) 127563244fa1SIlya Dryomov { 127663244fa1SIlya Dryomov return pi->flags & CEPH_POOL_FLAG_FULL; 127763244fa1SIlya Dryomov } 127863244fa1SIlya Dryomov 127942c1b124SIlya Dryomov static bool have_pool_full(struct ceph_osd_client *osdc) 128042c1b124SIlya Dryomov { 128142c1b124SIlya Dryomov struct rb_node *n; 128242c1b124SIlya Dryomov 128342c1b124SIlya Dryomov for (n = rb_first(&osdc->osdmap->pg_pools); n; n = rb_next(n)) { 128442c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 128542c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 128642c1b124SIlya Dryomov 128742c1b124SIlya Dryomov if (__pool_full(pi)) 128842c1b124SIlya Dryomov return true; 128942c1b124SIlya Dryomov } 129042c1b124SIlya Dryomov 129142c1b124SIlya Dryomov return false; 129242c1b124SIlya Dryomov } 129342c1b124SIlya Dryomov 12943d14c5d2SYehuda Sadeh /* 1295d29adb34SJosh Durgin * Returns whether a request should be blocked from being sent 1296d29adb34SJosh Durgin * based on the current osdmap and osd_client settings. 1297d29adb34SJosh Durgin * 1298d29adb34SJosh Durgin * Caller should hold map_sem for read. 1299d29adb34SJosh Durgin */ 130063244fa1SIlya Dryomov static bool target_should_be_paused(struct ceph_osd_client *osdc, 130163244fa1SIlya Dryomov const struct ceph_osd_request_target *t, 130263244fa1SIlya Dryomov struct ceph_pg_pool_info *pi) 130363244fa1SIlya Dryomov { 130463244fa1SIlya Dryomov bool pauserd = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD); 130563244fa1SIlya Dryomov bool pausewr = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR) || 130663244fa1SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 130763244fa1SIlya Dryomov __pool_full(pi); 130863244fa1SIlya Dryomov 130963244fa1SIlya Dryomov WARN_ON(pi->id != t->base_oloc.pool); 131063244fa1SIlya Dryomov return (t->flags & CEPH_OSD_FLAG_READ && pauserd) || 131163244fa1SIlya Dryomov (t->flags & CEPH_OSD_FLAG_WRITE && pausewr); 131263244fa1SIlya Dryomov } 131363244fa1SIlya Dryomov 131463244fa1SIlya Dryomov enum calc_target_result { 131563244fa1SIlya Dryomov CALC_TARGET_NO_ACTION = 0, 131663244fa1SIlya Dryomov CALC_TARGET_NEED_RESEND, 131763244fa1SIlya Dryomov CALC_TARGET_POOL_DNE, 131863244fa1SIlya Dryomov }; 131963244fa1SIlya Dryomov 132063244fa1SIlya Dryomov static enum calc_target_result calc_target(struct ceph_osd_client *osdc, 132163244fa1SIlya Dryomov struct ceph_osd_request_target *t, 132263244fa1SIlya Dryomov u32 *last_force_resend, 132363244fa1SIlya Dryomov bool any_change) 132463244fa1SIlya Dryomov { 132563244fa1SIlya Dryomov struct ceph_pg_pool_info *pi; 132663244fa1SIlya Dryomov struct ceph_pg pgid, last_pgid; 132763244fa1SIlya Dryomov struct ceph_osds up, acting; 132863244fa1SIlya Dryomov bool force_resend = false; 132963244fa1SIlya Dryomov bool need_check_tiering = false; 133063244fa1SIlya Dryomov bool need_resend = false; 133163244fa1SIlya Dryomov bool sort_bitwise = ceph_osdmap_flag(osdc->osdmap, 133263244fa1SIlya Dryomov CEPH_OSDMAP_SORTBITWISE); 133363244fa1SIlya Dryomov enum calc_target_result ct_res; 133463244fa1SIlya Dryomov int ret; 133563244fa1SIlya Dryomov 133663244fa1SIlya Dryomov pi = ceph_pg_pool_by_id(osdc->osdmap, t->base_oloc.pool); 133763244fa1SIlya Dryomov if (!pi) { 133863244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 133963244fa1SIlya Dryomov ct_res = CALC_TARGET_POOL_DNE; 134063244fa1SIlya Dryomov goto out; 134163244fa1SIlya Dryomov } 134263244fa1SIlya Dryomov 134363244fa1SIlya Dryomov if (osdc->osdmap->epoch == pi->last_force_request_resend) { 134463244fa1SIlya Dryomov if (last_force_resend && 134563244fa1SIlya Dryomov *last_force_resend < pi->last_force_request_resend) { 134663244fa1SIlya Dryomov *last_force_resend = pi->last_force_request_resend; 134763244fa1SIlya Dryomov force_resend = true; 134863244fa1SIlya Dryomov } else if (!last_force_resend) { 134963244fa1SIlya Dryomov force_resend = true; 135063244fa1SIlya Dryomov } 135163244fa1SIlya Dryomov } 135263244fa1SIlya Dryomov if (ceph_oid_empty(&t->target_oid) || force_resend) { 135363244fa1SIlya Dryomov ceph_oid_copy(&t->target_oid, &t->base_oid); 135463244fa1SIlya Dryomov need_check_tiering = true; 135563244fa1SIlya Dryomov } 135663244fa1SIlya Dryomov if (ceph_oloc_empty(&t->target_oloc) || force_resend) { 135763244fa1SIlya Dryomov ceph_oloc_copy(&t->target_oloc, &t->base_oloc); 135863244fa1SIlya Dryomov need_check_tiering = true; 135963244fa1SIlya Dryomov } 136063244fa1SIlya Dryomov 136163244fa1SIlya Dryomov if (need_check_tiering && 136263244fa1SIlya Dryomov (t->flags & CEPH_OSD_FLAG_IGNORE_OVERLAY) == 0) { 136363244fa1SIlya Dryomov if (t->flags & CEPH_OSD_FLAG_READ && pi->read_tier >= 0) 136463244fa1SIlya Dryomov t->target_oloc.pool = pi->read_tier; 136563244fa1SIlya Dryomov if (t->flags & CEPH_OSD_FLAG_WRITE && pi->write_tier >= 0) 136663244fa1SIlya Dryomov t->target_oloc.pool = pi->write_tier; 136763244fa1SIlya Dryomov } 136863244fa1SIlya Dryomov 136963244fa1SIlya Dryomov ret = ceph_object_locator_to_pg(osdc->osdmap, &t->target_oid, 137063244fa1SIlya Dryomov &t->target_oloc, &pgid); 137163244fa1SIlya Dryomov if (ret) { 137263244fa1SIlya Dryomov WARN_ON(ret != -ENOENT); 137363244fa1SIlya Dryomov t->osd = CEPH_HOMELESS_OSD; 137463244fa1SIlya Dryomov ct_res = CALC_TARGET_POOL_DNE; 137563244fa1SIlya Dryomov goto out; 137663244fa1SIlya Dryomov } 137763244fa1SIlya Dryomov last_pgid.pool = pgid.pool; 137863244fa1SIlya Dryomov last_pgid.seed = ceph_stable_mod(pgid.seed, t->pg_num, t->pg_num_mask); 137963244fa1SIlya Dryomov 138063244fa1SIlya Dryomov ceph_pg_to_up_acting_osds(osdc->osdmap, &pgid, &up, &acting); 138163244fa1SIlya Dryomov if (any_change && 138263244fa1SIlya Dryomov ceph_is_new_interval(&t->acting, 138363244fa1SIlya Dryomov &acting, 138463244fa1SIlya Dryomov &t->up, 138563244fa1SIlya Dryomov &up, 138663244fa1SIlya Dryomov t->size, 138763244fa1SIlya Dryomov pi->size, 138863244fa1SIlya Dryomov t->min_size, 138963244fa1SIlya Dryomov pi->min_size, 139063244fa1SIlya Dryomov t->pg_num, 139163244fa1SIlya Dryomov pi->pg_num, 139263244fa1SIlya Dryomov t->sort_bitwise, 139363244fa1SIlya Dryomov sort_bitwise, 139463244fa1SIlya Dryomov &last_pgid)) 139563244fa1SIlya Dryomov force_resend = true; 139663244fa1SIlya Dryomov 139763244fa1SIlya Dryomov if (t->paused && !target_should_be_paused(osdc, t, pi)) { 139863244fa1SIlya Dryomov t->paused = false; 139963244fa1SIlya Dryomov need_resend = true; 140063244fa1SIlya Dryomov } 140163244fa1SIlya Dryomov 140263244fa1SIlya Dryomov if (ceph_pg_compare(&t->pgid, &pgid) || 140363244fa1SIlya Dryomov ceph_osds_changed(&t->acting, &acting, any_change) || 140463244fa1SIlya Dryomov force_resend) { 140563244fa1SIlya Dryomov t->pgid = pgid; /* struct */ 140663244fa1SIlya Dryomov ceph_osds_copy(&t->acting, &acting); 140763244fa1SIlya Dryomov ceph_osds_copy(&t->up, &up); 140863244fa1SIlya Dryomov t->size = pi->size; 140963244fa1SIlya Dryomov t->min_size = pi->min_size; 141063244fa1SIlya Dryomov t->pg_num = pi->pg_num; 141163244fa1SIlya Dryomov t->pg_num_mask = pi->pg_num_mask; 141263244fa1SIlya Dryomov t->sort_bitwise = sort_bitwise; 141363244fa1SIlya Dryomov 141463244fa1SIlya Dryomov t->osd = acting.primary; 141563244fa1SIlya Dryomov need_resend = true; 141663244fa1SIlya Dryomov } 141763244fa1SIlya Dryomov 141863244fa1SIlya Dryomov ct_res = need_resend ? CALC_TARGET_NEED_RESEND : CALC_TARGET_NO_ACTION; 141963244fa1SIlya Dryomov out: 142063244fa1SIlya Dryomov dout("%s t %p -> ct_res %d osd %d\n", __func__, t, ct_res, t->osd); 142163244fa1SIlya Dryomov return ct_res; 142263244fa1SIlya Dryomov } 142363244fa1SIlya Dryomov 1424f671b581SIlya Dryomov static void __enqueue_request(struct ceph_osd_request *req) 1425f671b581SIlya Dryomov { 1426f671b581SIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 1427f671b581SIlya Dryomov 1428f671b581SIlya Dryomov dout("%s %p tid %llu to osd%d\n", __func__, req, req->r_tid, 1429f671b581SIlya Dryomov req->r_osd ? req->r_osd->o_osd : -1); 1430f671b581SIlya Dryomov 1431f671b581SIlya Dryomov if (req->r_osd) { 1432f671b581SIlya Dryomov __remove_osd_from_lru(req->r_osd); 1433f671b581SIlya Dryomov list_add_tail(&req->r_osd_item, &req->r_osd->o_requests); 1434f671b581SIlya Dryomov list_move_tail(&req->r_req_lru_item, &osdc->req_unsent); 1435f671b581SIlya Dryomov } else { 1436f671b581SIlya Dryomov list_move_tail(&req->r_req_lru_item, &osdc->req_notarget); 1437f671b581SIlya Dryomov } 1438f671b581SIlya Dryomov } 1439f671b581SIlya Dryomov 144017a13e40SIlya Dryomov /* 14413d14c5d2SYehuda Sadeh * Pick an osd (the first 'up' osd in the pg), allocate the osd struct 14423d14c5d2SYehuda Sadeh * (as needed), and set the request r_osd appropriately. If there is 144325985edcSLucas De Marchi * no up osd, set r_osd to NULL. Move the request to the appropriate list 14446f6c7006SSage Weil * (unsent, homeless) or leave on in-flight lru. 14453d14c5d2SYehuda Sadeh * 14463d14c5d2SYehuda Sadeh * Return 0 if unchanged, 1 if changed, or negative on error. 14473d14c5d2SYehuda Sadeh * 14483d14c5d2SYehuda Sadeh * Caller should hold map_sem for read and request_mutex. 14493d14c5d2SYehuda Sadeh */ 14506f6c7006SSage Weil static int __map_request(struct ceph_osd_client *osdc, 145138d6453cSSage Weil struct ceph_osd_request *req, int force_resend) 14523d14c5d2SYehuda Sadeh { 1453a66dd383SIlya Dryomov enum calc_target_result ct_res; 14543d14c5d2SYehuda Sadeh int err; 14553d14c5d2SYehuda Sadeh 14566f6c7006SSage Weil dout("map_request %p tid %lld\n", req, req->r_tid); 145717a13e40SIlya Dryomov 1458a66dd383SIlya Dryomov ct_res = calc_target(osdc, &req->r_t, NULL, force_resend); 1459a66dd383SIlya Dryomov switch (ct_res) { 1460a66dd383SIlya Dryomov case CALC_TARGET_POOL_DNE: 14616f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_notarget); 1462a66dd383SIlya Dryomov return -EIO; 1463a66dd383SIlya Dryomov case CALC_TARGET_NO_ACTION: 14643d14c5d2SYehuda Sadeh return 0; /* no change */ 1465a66dd383SIlya Dryomov default: 1466a66dd383SIlya Dryomov BUG_ON(ct_res != CALC_TARGET_NEED_RESEND); 1467a66dd383SIlya Dryomov } 14683d14c5d2SYehuda Sadeh 14695b191d99SSage Weil dout("map_request tid %llu pgid %lld.%x osd%d (was osd%d)\n", 1470a66dd383SIlya Dryomov req->r_tid, req->r_t.pgid.pool, req->r_t.pgid.seed, req->r_t.osd, 14713d14c5d2SYehuda Sadeh req->r_osd ? req->r_osd->o_osd : -1); 14723d14c5d2SYehuda Sadeh 14733d14c5d2SYehuda Sadeh if (req->r_osd) { 14743d14c5d2SYehuda Sadeh __cancel_request(req); 14753d14c5d2SYehuda Sadeh list_del_init(&req->r_osd_item); 1476a390de02SIlya Dryomov list_del_init(&req->r_linger_osd_item); 14773d14c5d2SYehuda Sadeh req->r_osd = NULL; 14783d14c5d2SYehuda Sadeh } 14793d14c5d2SYehuda Sadeh 1480a66dd383SIlya Dryomov req->r_osd = lookup_osd(&osdc->osds, req->r_t.osd); 1481a66dd383SIlya Dryomov if (!req->r_osd && req->r_t.osd >= 0) { 14823d14c5d2SYehuda Sadeh err = -ENOMEM; 1483a66dd383SIlya Dryomov req->r_osd = create_osd(osdc, req->r_t.osd); 14846f6c7006SSage Weil if (!req->r_osd) { 14856f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_notarget); 14863d14c5d2SYehuda Sadeh goto out; 14876f6c7006SSage Weil } 14883d14c5d2SYehuda Sadeh 14896f3bfd45SIlya Dryomov dout("map_request osd %p is osd%d\n", req->r_osd, 1490a66dd383SIlya Dryomov req->r_osd->o_osd); 1491fcd00b68SIlya Dryomov insert_osd(&osdc->osds, req->r_osd); 14923d14c5d2SYehuda Sadeh 1493b7a9e5ddSSage Weil ceph_con_open(&req->r_osd->o_con, 1494a66dd383SIlya Dryomov CEPH_ENTITY_TYPE_OSD, req->r_osd->o_osd, 1495a66dd383SIlya Dryomov &osdc->osdmap->osd_addr[req->r_osd->o_osd]); 14963d14c5d2SYehuda Sadeh } 14973d14c5d2SYehuda Sadeh 1498f671b581SIlya Dryomov __enqueue_request(req); 14993d14c5d2SYehuda Sadeh err = 1; /* osd or pg changed */ 15003d14c5d2SYehuda Sadeh 15013d14c5d2SYehuda Sadeh out: 15023d14c5d2SYehuda Sadeh return err; 15033d14c5d2SYehuda Sadeh } 15043d14c5d2SYehuda Sadeh 1505bb873b53SIlya Dryomov static void setup_request_data(struct ceph_osd_request *req, 1506bb873b53SIlya Dryomov struct ceph_msg *msg) 15073d14c5d2SYehuda Sadeh { 1508bb873b53SIlya Dryomov u32 data_len = 0; 1509bb873b53SIlya Dryomov int i; 15103d14c5d2SYehuda Sadeh 1511bb873b53SIlya Dryomov if (!list_empty(&msg->data)) 1512bb873b53SIlya Dryomov return; 15133d14c5d2SYehuda Sadeh 1514bb873b53SIlya Dryomov WARN_ON(msg->data_length); 1515bb873b53SIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 1516bb873b53SIlya Dryomov struct ceph_osd_req_op *op = &req->r_ops[i]; 1517bb873b53SIlya Dryomov 1518bb873b53SIlya Dryomov switch (op->op) { 1519bb873b53SIlya Dryomov /* request */ 1520bb873b53SIlya Dryomov case CEPH_OSD_OP_WRITE: 1521bb873b53SIlya Dryomov case CEPH_OSD_OP_WRITEFULL: 1522bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->extent.length); 1523bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->extent.osd_data); 1524bb873b53SIlya Dryomov break; 1525bb873b53SIlya Dryomov case CEPH_OSD_OP_SETXATTR: 1526bb873b53SIlya Dryomov case CEPH_OSD_OP_CMPXATTR: 1527bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->xattr.name_len + 1528bb873b53SIlya Dryomov op->xattr.value_len); 1529bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->xattr.osd_data); 1530bb873b53SIlya Dryomov break; 1531bb873b53SIlya Dryomov 1532bb873b53SIlya Dryomov /* reply */ 1533bb873b53SIlya Dryomov case CEPH_OSD_OP_STAT: 1534bb873b53SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 1535bb873b53SIlya Dryomov &op->raw_data_in); 1536bb873b53SIlya Dryomov break; 1537bb873b53SIlya Dryomov case CEPH_OSD_OP_READ: 1538bb873b53SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 1539bb873b53SIlya Dryomov &op->extent.osd_data); 1540bb873b53SIlya Dryomov break; 1541bb873b53SIlya Dryomov 1542bb873b53SIlya Dryomov /* both */ 1543bb873b53SIlya Dryomov case CEPH_OSD_OP_CALL: 1544bb873b53SIlya Dryomov WARN_ON(op->indata_len != op->cls.class_len + 1545bb873b53SIlya Dryomov op->cls.method_len + 1546bb873b53SIlya Dryomov op->cls.indata_len); 1547bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->cls.request_info); 1548bb873b53SIlya Dryomov /* optional, can be NONE */ 1549bb873b53SIlya Dryomov ceph_osdc_msg_data_add(msg, &op->cls.request_data); 1550bb873b53SIlya Dryomov /* optional, can be NONE */ 1551bb873b53SIlya Dryomov ceph_osdc_msg_data_add(req->r_reply, 1552bb873b53SIlya Dryomov &op->cls.response_data); 1553bb873b53SIlya Dryomov break; 1554bb873b53SIlya Dryomov } 1555bb873b53SIlya Dryomov 1556bb873b53SIlya Dryomov data_len += op->indata_len; 1557bb873b53SIlya Dryomov } 1558bb873b53SIlya Dryomov 1559bb873b53SIlya Dryomov WARN_ON(data_len != msg->data_length); 1560bb873b53SIlya Dryomov } 1561bb873b53SIlya Dryomov 1562bb873b53SIlya Dryomov static void encode_request(struct ceph_osd_request *req, struct ceph_msg *msg) 1563bb873b53SIlya Dryomov { 1564bb873b53SIlya Dryomov void *p = msg->front.iov_base; 1565bb873b53SIlya Dryomov void *const end = p + msg->front_alloc_len; 1566bb873b53SIlya Dryomov u32 data_len = 0; 1567bb873b53SIlya Dryomov int i; 1568bb873b53SIlya Dryomov 1569bb873b53SIlya Dryomov if (req->r_flags & CEPH_OSD_FLAG_WRITE) { 1570bb873b53SIlya Dryomov /* snapshots aren't writeable */ 1571bb873b53SIlya Dryomov WARN_ON(req->r_snapid != CEPH_NOSNAP); 1572bb873b53SIlya Dryomov } else { 1573bb873b53SIlya Dryomov WARN_ON(req->r_mtime.tv_sec || req->r_mtime.tv_nsec || 1574bb873b53SIlya Dryomov req->r_data_offset || req->r_snapc); 1575bb873b53SIlya Dryomov } 1576bb873b53SIlya Dryomov 1577bb873b53SIlya Dryomov setup_request_data(req, msg); 1578bb873b53SIlya Dryomov 1579bb873b53SIlya Dryomov ceph_encode_32(&p, 1); /* client_inc, always 1 */ 1580bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_osdc->osdmap->epoch); 1581bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_flags); 1582bb873b53SIlya Dryomov ceph_encode_timespec(p, &req->r_mtime); 1583bb873b53SIlya Dryomov p += sizeof(struct ceph_timespec); 1584bb873b53SIlya Dryomov /* aka reassert_version */ 1585bb873b53SIlya Dryomov memcpy(p, &req->r_replay_version, sizeof(req->r_replay_version)); 1586bb873b53SIlya Dryomov p += sizeof(req->r_replay_version); 1587bb873b53SIlya Dryomov 1588bb873b53SIlya Dryomov /* oloc */ 1589bb873b53SIlya Dryomov ceph_encode_8(&p, 4); 1590bb873b53SIlya Dryomov ceph_encode_8(&p, 4); 1591bb873b53SIlya Dryomov ceph_encode_32(&p, 8 + 4 + 4); 1592bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_t.target_oloc.pool); 1593bb873b53SIlya Dryomov ceph_encode_32(&p, -1); /* preferred */ 1594bb873b53SIlya Dryomov ceph_encode_32(&p, 0); /* key len */ 1595bb873b53SIlya Dryomov 1596bb873b53SIlya Dryomov /* pgid */ 1597bb873b53SIlya Dryomov ceph_encode_8(&p, 1); 1598a66dd383SIlya Dryomov ceph_encode_64(&p, req->r_t.pgid.pool); 1599a66dd383SIlya Dryomov ceph_encode_32(&p, req->r_t.pgid.seed); 1600bb873b53SIlya Dryomov ceph_encode_32(&p, -1); /* preferred */ 16012169aea6SSage Weil 1602bb873b53SIlya Dryomov /* oid */ 1603bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_t.target_oid.name_len); 1604bb873b53SIlya Dryomov memcpy(p, req->r_t.target_oid.name, req->r_t.target_oid.name_len); 1605bb873b53SIlya Dryomov p += req->r_t.target_oid.name_len; 1606bb873b53SIlya Dryomov 1607bb873b53SIlya Dryomov /* ops, can imply data */ 1608bb873b53SIlya Dryomov ceph_encode_16(&p, req->r_num_ops); 1609bb873b53SIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 1610bb873b53SIlya Dryomov data_len += osd_req_encode_op(p, &req->r_ops[i]); 1611bb873b53SIlya Dryomov p += sizeof(struct ceph_osd_op); 1612bb873b53SIlya Dryomov } 1613bb873b53SIlya Dryomov 1614bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapid); /* snapid */ 1615bb873b53SIlya Dryomov if (req->r_snapc) { 1616bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapc->seq); 1617bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_snapc->num_snaps); 1618bb873b53SIlya Dryomov for (i = 0; i < req->r_snapc->num_snaps; i++) 1619bb873b53SIlya Dryomov ceph_encode_64(&p, req->r_snapc->snaps[i]); 1620bb873b53SIlya Dryomov } else { 1621bb873b53SIlya Dryomov ceph_encode_64(&p, 0); /* snap_seq */ 1622bb873b53SIlya Dryomov ceph_encode_32(&p, 0); /* snaps len */ 1623bb873b53SIlya Dryomov } 1624bb873b53SIlya Dryomov 1625bb873b53SIlya Dryomov ceph_encode_32(&p, req->r_attempts); /* retry_attempt */ 1626bb873b53SIlya Dryomov 1627bb873b53SIlya Dryomov BUG_ON(p > end); 1628bb873b53SIlya Dryomov msg->front.iov_len = p - msg->front.iov_base; 1629bb873b53SIlya Dryomov msg->hdr.version = cpu_to_le16(4); /* MOSDOp v4 */ 1630bb873b53SIlya Dryomov msg->hdr.front_len = cpu_to_le32(msg->front.iov_len); 1631bb873b53SIlya Dryomov msg->hdr.data_len = cpu_to_le32(data_len); 1632bb873b53SIlya Dryomov /* 1633bb873b53SIlya Dryomov * The header "data_off" is a hint to the receiver allowing it 1634bb873b53SIlya Dryomov * to align received data into its buffers such that there's no 1635bb873b53SIlya Dryomov * need to re-copy it before writing it to disk (direct I/O). 1636bb873b53SIlya Dryomov */ 1637bb873b53SIlya Dryomov msg->hdr.data_off = cpu_to_le16(req->r_data_offset); 1638bb873b53SIlya Dryomov 1639bb873b53SIlya Dryomov dout("%s req %p oid %*pE oid_len %d front %zu data %u\n", __func__, 1640bb873b53SIlya Dryomov req, req->r_t.target_oid.name_len, req->r_t.target_oid.name, 1641bb873b53SIlya Dryomov req->r_t.target_oid.name_len, msg->front.iov_len, data_len); 1642bb873b53SIlya Dryomov } 1643bb873b53SIlya Dryomov 1644bb873b53SIlya Dryomov /* 1645bb873b53SIlya Dryomov * @req has to be assigned a tid and registered. 1646bb873b53SIlya Dryomov */ 1647bb873b53SIlya Dryomov static void send_request(struct ceph_osd_request *req) 1648bb873b53SIlya Dryomov { 1649bb873b53SIlya Dryomov struct ceph_osd *osd = req->r_osd; 1650bb873b53SIlya Dryomov 1651bb873b53SIlya Dryomov WARN_ON(osd->o_osd != req->r_t.osd); 1652bb873b53SIlya Dryomov 1653bb873b53SIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_KNOWN_REDIR; 1654bb873b53SIlya Dryomov if (req->r_attempts) 1655bb873b53SIlya Dryomov req->r_flags |= CEPH_OSD_FLAG_RETRY; 1656bb873b53SIlya Dryomov else 1657bb873b53SIlya Dryomov WARN_ON(req->r_flags & CEPH_OSD_FLAG_RETRY); 1658bb873b53SIlya Dryomov 1659bb873b53SIlya Dryomov encode_request(req, req->r_request); 1660bb873b53SIlya Dryomov 1661bb873b53SIlya Dryomov dout("%s req %p tid %llu to pg %llu.%x osd%d flags 0x%x attempt %d\n", 1662bb873b53SIlya Dryomov __func__, req, req->r_tid, req->r_t.pgid.pool, req->r_t.pgid.seed, 1663bb873b53SIlya Dryomov req->r_t.osd, req->r_flags, req->r_attempts); 1664bb873b53SIlya Dryomov 1665bb873b53SIlya Dryomov req->r_t.paused = false; 16663d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 1667bb873b53SIlya Dryomov req->r_attempts++; 16683d14c5d2SYehuda Sadeh 1669bb873b53SIlya Dryomov req->r_sent = osd->o_incarnation; 1670bb873b53SIlya Dryomov req->r_request->hdr.tid = cpu_to_le64(req->r_tid); 1671bb873b53SIlya Dryomov ceph_con_send(&osd->o_con, ceph_msg_get(req->r_request)); 16723d14c5d2SYehuda Sadeh } 16733d14c5d2SYehuda Sadeh 16743d14c5d2SYehuda Sadeh /* 16756f6c7006SSage Weil * Send any requests in the queue (req_unsent). 16766f6c7006SSage Weil */ 1677f9d25199SAlex Elder static void __send_queued(struct ceph_osd_client *osdc) 16786f6c7006SSage Weil { 16796f6c7006SSage Weil struct ceph_osd_request *req, *tmp; 16806f6c7006SSage Weil 1681f9d25199SAlex Elder dout("__send_queued\n"); 1682bb873b53SIlya Dryomov list_for_each_entry_safe(req, tmp, &osdc->req_unsent, r_req_lru_item) { 1683bb873b53SIlya Dryomov list_move_tail(&req->r_req_lru_item, &osdc->req_lru); 1684bb873b53SIlya Dryomov send_request(req); 1685bb873b53SIlya Dryomov } 16866f6c7006SSage Weil } 16876f6c7006SSage Weil 168842c1b124SIlya Dryomov static void maybe_request_map(struct ceph_osd_client *osdc) 168942c1b124SIlya Dryomov { 169042c1b124SIlya Dryomov bool continuous = false; 169142c1b124SIlya Dryomov 169242c1b124SIlya Dryomov WARN_ON(!osdc->osdmap->epoch); 169342c1b124SIlya Dryomov 169442c1b124SIlya Dryomov if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 169542c1b124SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD) || 169642c1b124SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR)) { 169742c1b124SIlya Dryomov dout("%s osdc %p continuous\n", __func__, osdc); 169842c1b124SIlya Dryomov continuous = true; 169942c1b124SIlya Dryomov } else { 170042c1b124SIlya Dryomov dout("%s osdc %p onetime\n", __func__, osdc); 170142c1b124SIlya Dryomov } 170242c1b124SIlya Dryomov 170342c1b124SIlya Dryomov if (ceph_monc_want_map(&osdc->client->monc, CEPH_SUB_OSDMAP, 170442c1b124SIlya Dryomov osdc->osdmap->epoch + 1, continuous)) 170542c1b124SIlya Dryomov ceph_monc_renew_subs(&osdc->client->monc); 170642c1b124SIlya Dryomov } 170742c1b124SIlya Dryomov 17086f6c7006SSage Weil /* 17090bbfdfe8SIlya Dryomov * Caller should hold map_sem for read and request_mutex. 17100bbfdfe8SIlya Dryomov */ 17110bbfdfe8SIlya Dryomov static int __ceph_osdc_start_request(struct ceph_osd_client *osdc, 17120bbfdfe8SIlya Dryomov struct ceph_osd_request *req, 17130bbfdfe8SIlya Dryomov bool nofail) 17140bbfdfe8SIlya Dryomov { 17150bbfdfe8SIlya Dryomov int rc; 17160bbfdfe8SIlya Dryomov 17170bbfdfe8SIlya Dryomov __register_request(osdc, req); 17180bbfdfe8SIlya Dryomov req->r_sent = 0; 17190bbfdfe8SIlya Dryomov req->r_got_reply = 0; 17200bbfdfe8SIlya Dryomov rc = __map_request(osdc, req, 0); 17210bbfdfe8SIlya Dryomov if (rc < 0) { 17220bbfdfe8SIlya Dryomov if (nofail) { 17230bbfdfe8SIlya Dryomov dout("osdc_start_request failed map, " 17240bbfdfe8SIlya Dryomov " will retry %lld\n", req->r_tid); 17250bbfdfe8SIlya Dryomov rc = 0; 17260bbfdfe8SIlya Dryomov } else { 17270bbfdfe8SIlya Dryomov __unregister_request(osdc, req); 17280bbfdfe8SIlya Dryomov } 17290bbfdfe8SIlya Dryomov return rc; 17300bbfdfe8SIlya Dryomov } 17310bbfdfe8SIlya Dryomov 17320bbfdfe8SIlya Dryomov if (req->r_osd == NULL) { 17330bbfdfe8SIlya Dryomov dout("send_request %p no up osds in pg\n", req); 17340bbfdfe8SIlya Dryomov ceph_monc_request_next_osdmap(&osdc->client->monc); 17350bbfdfe8SIlya Dryomov } else { 17360bbfdfe8SIlya Dryomov __send_queued(osdc); 17370bbfdfe8SIlya Dryomov } 17380bbfdfe8SIlya Dryomov 17390bbfdfe8SIlya Dryomov return 0; 17400bbfdfe8SIlya Dryomov } 17410bbfdfe8SIlya Dryomov 1742fe5da05eSIlya Dryomov static void __complete_request(struct ceph_osd_request *req) 1743fe5da05eSIlya Dryomov { 1744fe5da05eSIlya Dryomov if (req->r_callback) 1745fe5da05eSIlya Dryomov req->r_callback(req); 1746fe5da05eSIlya Dryomov else 1747fe5da05eSIlya Dryomov complete_all(&req->r_completion); 1748fe5da05eSIlya Dryomov } 1749fe5da05eSIlya Dryomov 17500bbfdfe8SIlya Dryomov /* 1751fbca9635SIlya Dryomov * Timeout callback, called every N seconds. When 1 or more OSD 1752fbca9635SIlya Dryomov * requests has been active for more than N seconds, we send a keepalive 1753fbca9635SIlya Dryomov * (tag + timestamp) to its OSD to ensure any communications channel 1754fbca9635SIlya Dryomov * reset is detected. 17553d14c5d2SYehuda Sadeh */ 17563d14c5d2SYehuda Sadeh static void handle_timeout(struct work_struct *work) 17573d14c5d2SYehuda Sadeh { 17583d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 17593d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, timeout_work.work); 1760a319bf56SIlya Dryomov struct ceph_options *opts = osdc->client->options; 176183aff95eSSage Weil struct ceph_osd_request *req; 17623d14c5d2SYehuda Sadeh struct ceph_osd *osd; 17633d14c5d2SYehuda Sadeh struct list_head slow_osds; 17643d14c5d2SYehuda Sadeh dout("timeout\n"); 17653d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 17663d14c5d2SYehuda Sadeh 17673d14c5d2SYehuda Sadeh ceph_monc_request_next_osdmap(&osdc->client->monc); 17683d14c5d2SYehuda Sadeh 17693d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 17703d14c5d2SYehuda Sadeh 17713d14c5d2SYehuda Sadeh /* 17723d14c5d2SYehuda Sadeh * ping osds that are a bit slow. this ensures that if there 17733d14c5d2SYehuda Sadeh * is a break in the TCP connection we will notice, and reopen 17743d14c5d2SYehuda Sadeh * a connection with that osd (from the fault callback). 17753d14c5d2SYehuda Sadeh */ 17763d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&slow_osds); 17773d14c5d2SYehuda Sadeh list_for_each_entry(req, &osdc->req_lru, r_req_lru_item) { 1778a319bf56SIlya Dryomov if (time_before(jiffies, 1779a319bf56SIlya Dryomov req->r_stamp + opts->osd_keepalive_timeout)) 17803d14c5d2SYehuda Sadeh break; 17813d14c5d2SYehuda Sadeh 17823d14c5d2SYehuda Sadeh osd = req->r_osd; 17833d14c5d2SYehuda Sadeh BUG_ON(!osd); 17843d14c5d2SYehuda Sadeh dout(" tid %llu is slow, will send keepalive on osd%d\n", 17853d14c5d2SYehuda Sadeh req->r_tid, osd->o_osd); 17863d14c5d2SYehuda Sadeh list_move_tail(&osd->o_keepalive_item, &slow_osds); 17873d14c5d2SYehuda Sadeh } 17883d14c5d2SYehuda Sadeh while (!list_empty(&slow_osds)) { 17893d14c5d2SYehuda Sadeh osd = list_entry(slow_osds.next, struct ceph_osd, 17903d14c5d2SYehuda Sadeh o_keepalive_item); 17913d14c5d2SYehuda Sadeh list_del_init(&osd->o_keepalive_item); 17923d14c5d2SYehuda Sadeh ceph_con_keepalive(&osd->o_con); 17933d14c5d2SYehuda Sadeh } 17943d14c5d2SYehuda Sadeh 1795f9d25199SAlex Elder __send_queued(osdc); 17963d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 17973d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 1798fbca9635SIlya Dryomov 1799fbca9635SIlya Dryomov schedule_delayed_work(&osdc->timeout_work, 1800fbca9635SIlya Dryomov osdc->client->options->osd_keepalive_timeout); 18013d14c5d2SYehuda Sadeh } 18023d14c5d2SYehuda Sadeh 18033d14c5d2SYehuda Sadeh static void handle_osds_timeout(struct work_struct *work) 18043d14c5d2SYehuda Sadeh { 18053d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 18063d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, 18073d14c5d2SYehuda Sadeh osds_timeout_work.work); 1808a319bf56SIlya Dryomov unsigned long delay = osdc->client->options->osd_idle_ttl / 4; 180942a2c09fSIlya Dryomov struct ceph_osd *osd, *nosd; 18103d14c5d2SYehuda Sadeh 181142a2c09fSIlya Dryomov dout("%s osdc %p\n", __func__, osdc); 18123d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 181342a2c09fSIlya Dryomov mutex_lock(&osdc->request_mutex); 18143d14c5d2SYehuda Sadeh 181542a2c09fSIlya Dryomov list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { 181642a2c09fSIlya Dryomov if (time_before(jiffies, osd->lru_ttl)) 181742a2c09fSIlya Dryomov break; 181842a2c09fSIlya Dryomov 181942a2c09fSIlya Dryomov remove_osd(osdc, osd); 182042a2c09fSIlya Dryomov } 182142a2c09fSIlya Dryomov 182242a2c09fSIlya Dryomov mutex_unlock(&osdc->request_mutex); 182342a2c09fSIlya Dryomov up_read(&osdc->map_sem); 18243d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->osds_timeout_work, 18253d14c5d2SYehuda Sadeh round_jiffies_relative(delay)); 18263d14c5d2SYehuda Sadeh } 18273d14c5d2SYehuda Sadeh 1828205ee118SIlya Dryomov static int ceph_oloc_decode(void **p, void *end, 1829205ee118SIlya Dryomov struct ceph_object_locator *oloc) 1830205ee118SIlya Dryomov { 1831205ee118SIlya Dryomov u8 struct_v, struct_cv; 1832205ee118SIlya Dryomov u32 len; 1833205ee118SIlya Dryomov void *struct_end; 1834205ee118SIlya Dryomov int ret = 0; 1835205ee118SIlya Dryomov 1836205ee118SIlya Dryomov ceph_decode_need(p, end, 1 + 1 + 4, e_inval); 1837205ee118SIlya Dryomov struct_v = ceph_decode_8(p); 1838205ee118SIlya Dryomov struct_cv = ceph_decode_8(p); 1839205ee118SIlya Dryomov if (struct_v < 3) { 1840205ee118SIlya Dryomov pr_warn("got v %d < 3 cv %d of ceph_object_locator\n", 1841205ee118SIlya Dryomov struct_v, struct_cv); 1842205ee118SIlya Dryomov goto e_inval; 1843205ee118SIlya Dryomov } 1844205ee118SIlya Dryomov if (struct_cv > 6) { 1845205ee118SIlya Dryomov pr_warn("got v %d cv %d > 6 of ceph_object_locator\n", 1846205ee118SIlya Dryomov struct_v, struct_cv); 1847205ee118SIlya Dryomov goto e_inval; 1848205ee118SIlya Dryomov } 1849205ee118SIlya Dryomov len = ceph_decode_32(p); 1850205ee118SIlya Dryomov ceph_decode_need(p, end, len, e_inval); 1851205ee118SIlya Dryomov struct_end = *p + len; 1852205ee118SIlya Dryomov 1853205ee118SIlya Dryomov oloc->pool = ceph_decode_64(p); 1854205ee118SIlya Dryomov *p += 4; /* skip preferred */ 1855205ee118SIlya Dryomov 1856205ee118SIlya Dryomov len = ceph_decode_32(p); 1857205ee118SIlya Dryomov if (len > 0) { 1858205ee118SIlya Dryomov pr_warn("ceph_object_locator::key is set\n"); 1859205ee118SIlya Dryomov goto e_inval; 1860205ee118SIlya Dryomov } 1861205ee118SIlya Dryomov 1862205ee118SIlya Dryomov if (struct_v >= 5) { 1863205ee118SIlya Dryomov len = ceph_decode_32(p); 1864205ee118SIlya Dryomov if (len > 0) { 1865205ee118SIlya Dryomov pr_warn("ceph_object_locator::nspace is set\n"); 1866205ee118SIlya Dryomov goto e_inval; 1867205ee118SIlya Dryomov } 1868205ee118SIlya Dryomov } 1869205ee118SIlya Dryomov 1870205ee118SIlya Dryomov if (struct_v >= 6) { 1871205ee118SIlya Dryomov s64 hash = ceph_decode_64(p); 1872205ee118SIlya Dryomov if (hash != -1) { 1873205ee118SIlya Dryomov pr_warn("ceph_object_locator::hash is set\n"); 1874205ee118SIlya Dryomov goto e_inval; 1875205ee118SIlya Dryomov } 1876205ee118SIlya Dryomov } 1877205ee118SIlya Dryomov 1878205ee118SIlya Dryomov /* skip the rest */ 1879205ee118SIlya Dryomov *p = struct_end; 1880205ee118SIlya Dryomov out: 1881205ee118SIlya Dryomov return ret; 1882205ee118SIlya Dryomov 1883205ee118SIlya Dryomov e_inval: 1884205ee118SIlya Dryomov ret = -EINVAL; 1885205ee118SIlya Dryomov goto out; 1886205ee118SIlya Dryomov } 1887205ee118SIlya Dryomov 1888205ee118SIlya Dryomov static int ceph_redirect_decode(void **p, void *end, 1889205ee118SIlya Dryomov struct ceph_request_redirect *redir) 1890205ee118SIlya Dryomov { 1891205ee118SIlya Dryomov u8 struct_v, struct_cv; 1892205ee118SIlya Dryomov u32 len; 1893205ee118SIlya Dryomov void *struct_end; 1894205ee118SIlya Dryomov int ret; 1895205ee118SIlya Dryomov 1896205ee118SIlya Dryomov ceph_decode_need(p, end, 1 + 1 + 4, e_inval); 1897205ee118SIlya Dryomov struct_v = ceph_decode_8(p); 1898205ee118SIlya Dryomov struct_cv = ceph_decode_8(p); 1899205ee118SIlya Dryomov if (struct_cv > 1) { 1900205ee118SIlya Dryomov pr_warn("got v %d cv %d > 1 of ceph_request_redirect\n", 1901205ee118SIlya Dryomov struct_v, struct_cv); 1902205ee118SIlya Dryomov goto e_inval; 1903205ee118SIlya Dryomov } 1904205ee118SIlya Dryomov len = ceph_decode_32(p); 1905205ee118SIlya Dryomov ceph_decode_need(p, end, len, e_inval); 1906205ee118SIlya Dryomov struct_end = *p + len; 1907205ee118SIlya Dryomov 1908205ee118SIlya Dryomov ret = ceph_oloc_decode(p, end, &redir->oloc); 1909205ee118SIlya Dryomov if (ret) 1910205ee118SIlya Dryomov goto out; 1911205ee118SIlya Dryomov 1912205ee118SIlya Dryomov len = ceph_decode_32(p); 1913205ee118SIlya Dryomov if (len > 0) { 1914205ee118SIlya Dryomov pr_warn("ceph_request_redirect::object_name is set\n"); 1915205ee118SIlya Dryomov goto e_inval; 1916205ee118SIlya Dryomov } 1917205ee118SIlya Dryomov 1918205ee118SIlya Dryomov len = ceph_decode_32(p); 1919205ee118SIlya Dryomov *p += len; /* skip osd_instructions */ 1920205ee118SIlya Dryomov 1921205ee118SIlya Dryomov /* skip the rest */ 1922205ee118SIlya Dryomov *p = struct_end; 1923205ee118SIlya Dryomov out: 1924205ee118SIlya Dryomov return ret; 1925205ee118SIlya Dryomov 1926205ee118SIlya Dryomov e_inval: 1927205ee118SIlya Dryomov ret = -EINVAL; 1928205ee118SIlya Dryomov goto out; 1929205ee118SIlya Dryomov } 1930205ee118SIlya Dryomov 1931fe5da05eSIlya Dryomov struct MOSDOpReply { 1932fe5da05eSIlya Dryomov struct ceph_pg pgid; 1933fe5da05eSIlya Dryomov u64 flags; 1934fe5da05eSIlya Dryomov int result; 1935fe5da05eSIlya Dryomov u32 epoch; 1936fe5da05eSIlya Dryomov int num_ops; 1937fe5da05eSIlya Dryomov u32 outdata_len[CEPH_OSD_MAX_OPS]; 1938fe5da05eSIlya Dryomov s32 rval[CEPH_OSD_MAX_OPS]; 1939fe5da05eSIlya Dryomov int retry_attempt; 1940fe5da05eSIlya Dryomov struct ceph_eversion replay_version; 1941fe5da05eSIlya Dryomov u64 user_version; 1942fe5da05eSIlya Dryomov struct ceph_request_redirect redirect; 1943fe5da05eSIlya Dryomov }; 194425845472SSage Weil 1945fe5da05eSIlya Dryomov static int decode_MOSDOpReply(const struct ceph_msg *msg, struct MOSDOpReply *m) 19463d14c5d2SYehuda Sadeh { 1947fe5da05eSIlya Dryomov void *p = msg->front.iov_base; 1948fe5da05eSIlya Dryomov void *const end = p + msg->front.iov_len; 1949fe5da05eSIlya Dryomov u16 version = le16_to_cpu(msg->hdr.version); 1950fe5da05eSIlya Dryomov struct ceph_eversion bad_replay_version; 1951b0b31a8fSIlya Dryomov u8 decode_redir; 1952fe5da05eSIlya Dryomov u32 len; 1953fe5da05eSIlya Dryomov int ret; 1954fe5da05eSIlya Dryomov int i; 19553d14c5d2SYehuda Sadeh 1956fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, len, e_inval); 1957fe5da05eSIlya Dryomov ceph_decode_need(&p, end, len, e_inval); 1958fe5da05eSIlya Dryomov p += len; /* skip oid */ 19591b83bef2SSage Weil 1960fe5da05eSIlya Dryomov ret = ceph_decode_pgid(&p, end, &m->pgid); 1961fe5da05eSIlya Dryomov if (ret) 1962fe5da05eSIlya Dryomov return ret; 19631b83bef2SSage Weil 1964fe5da05eSIlya Dryomov ceph_decode_64_safe(&p, end, m->flags, e_inval); 1965fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->result, e_inval); 1966fe5da05eSIlya Dryomov ceph_decode_need(&p, end, sizeof(bad_replay_version), e_inval); 1967fe5da05eSIlya Dryomov memcpy(&bad_replay_version, p, sizeof(bad_replay_version)); 1968fe5da05eSIlya Dryomov p += sizeof(bad_replay_version); 1969fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->epoch, e_inval); 19701b83bef2SSage Weil 1971fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->num_ops, e_inval); 1972fe5da05eSIlya Dryomov if (m->num_ops > ARRAY_SIZE(m->outdata_len)) 1973fe5da05eSIlya Dryomov goto e_inval; 19741b83bef2SSage Weil 1975fe5da05eSIlya Dryomov ceph_decode_need(&p, end, m->num_ops * sizeof(struct ceph_osd_op), 1976fe5da05eSIlya Dryomov e_inval); 1977fe5da05eSIlya Dryomov for (i = 0; i < m->num_ops; i++) { 19781b83bef2SSage Weil struct ceph_osd_op *op = p; 19791b83bef2SSage Weil 1980fe5da05eSIlya Dryomov m->outdata_len[i] = le32_to_cpu(op->payload_len); 19811b83bef2SSage Weil p += sizeof(*op); 19821b83bef2SSage Weil } 1983fe5da05eSIlya Dryomov 1984fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->retry_attempt, e_inval); 1985fe5da05eSIlya Dryomov for (i = 0; i < m->num_ops; i++) 1986fe5da05eSIlya Dryomov ceph_decode_32_safe(&p, end, m->rval[i], e_inval); 1987fe5da05eSIlya Dryomov 1988fe5da05eSIlya Dryomov if (version >= 5) { 1989fe5da05eSIlya Dryomov ceph_decode_need(&p, end, sizeof(m->replay_version), e_inval); 1990fe5da05eSIlya Dryomov memcpy(&m->replay_version, p, sizeof(m->replay_version)); 1991fe5da05eSIlya Dryomov p += sizeof(m->replay_version); 1992fe5da05eSIlya Dryomov ceph_decode_64_safe(&p, end, m->user_version, e_inval); 1993fe5da05eSIlya Dryomov } else { 1994fe5da05eSIlya Dryomov m->replay_version = bad_replay_version; /* struct */ 1995fe5da05eSIlya Dryomov m->user_version = le64_to_cpu(m->replay_version.version); 19961b83bef2SSage Weil } 19971b83bef2SSage Weil 1998fe5da05eSIlya Dryomov if (version >= 6) { 1999fe5da05eSIlya Dryomov if (version >= 7) 2000fe5da05eSIlya Dryomov ceph_decode_8_safe(&p, end, decode_redir, e_inval); 2001b0b31a8fSIlya Dryomov else 2002b0b31a8fSIlya Dryomov decode_redir = 1; 2003b0b31a8fSIlya Dryomov } else { 2004b0b31a8fSIlya Dryomov decode_redir = 0; 2005b0b31a8fSIlya Dryomov } 2006b0b31a8fSIlya Dryomov 2007b0b31a8fSIlya Dryomov if (decode_redir) { 2008fe5da05eSIlya Dryomov ret = ceph_redirect_decode(&p, end, &m->redirect); 2009fe5da05eSIlya Dryomov if (ret) 2010fe5da05eSIlya Dryomov return ret; 2011205ee118SIlya Dryomov } else { 2012fe5da05eSIlya Dryomov ceph_oloc_init(&m->redirect.oloc); 2013205ee118SIlya Dryomov } 2014205ee118SIlya Dryomov 2015fe5da05eSIlya Dryomov return 0; 2016205ee118SIlya Dryomov 2017fe5da05eSIlya Dryomov e_inval: 2018fe5da05eSIlya Dryomov return -EINVAL; 2019fe5da05eSIlya Dryomov } 2020fe5da05eSIlya Dryomov 2021fe5da05eSIlya Dryomov /* 2022fe5da05eSIlya Dryomov * We are done with @req if 2023fe5da05eSIlya Dryomov * - @m is a safe reply, or 2024fe5da05eSIlya Dryomov * - @m is an unsafe reply and we didn't want a safe one 2025fe5da05eSIlya Dryomov */ 2026fe5da05eSIlya Dryomov static bool done_request(const struct ceph_osd_request *req, 2027fe5da05eSIlya Dryomov const struct MOSDOpReply *m) 2028fe5da05eSIlya Dryomov { 2029fe5da05eSIlya Dryomov return (m->result < 0 || 2030fe5da05eSIlya Dryomov (m->flags & CEPH_OSD_FLAG_ONDISK) || 2031fe5da05eSIlya Dryomov !(req->r_flags & CEPH_OSD_FLAG_ONDISK)); 2032fe5da05eSIlya Dryomov } 2033fe5da05eSIlya Dryomov 2034fe5da05eSIlya Dryomov /* 2035fe5da05eSIlya Dryomov * handle osd op reply. either call the callback if it is specified, 2036fe5da05eSIlya Dryomov * or do the completion to wake up the waiting thread. 2037fe5da05eSIlya Dryomov * 2038fe5da05eSIlya Dryomov * ->r_unsafe_callback is set? yes no 2039fe5da05eSIlya Dryomov * 2040fe5da05eSIlya Dryomov * first reply is OK (needed r_cb/r_completion, r_cb/r_completion, 2041fe5da05eSIlya Dryomov * any or needed/got safe) r_safe_completion r_safe_completion 2042fe5da05eSIlya Dryomov * 2043fe5da05eSIlya Dryomov * first reply is unsafe r_unsafe_cb(true) (nothing) 2044fe5da05eSIlya Dryomov * 2045fe5da05eSIlya Dryomov * when we get the safe reply r_unsafe_cb(false), r_cb/r_completion, 2046fe5da05eSIlya Dryomov * r_safe_completion r_safe_completion 2047fe5da05eSIlya Dryomov */ 2048fe5da05eSIlya Dryomov static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg) 2049fe5da05eSIlya Dryomov { 2050fe5da05eSIlya Dryomov struct ceph_osd_request *req; 2051fe5da05eSIlya Dryomov struct MOSDOpReply m; 2052fe5da05eSIlya Dryomov u64 tid = le64_to_cpu(msg->hdr.tid); 2053fe5da05eSIlya Dryomov u32 data_len = 0; 2054fe5da05eSIlya Dryomov bool already_acked; 2055fe5da05eSIlya Dryomov int ret; 2056fe5da05eSIlya Dryomov int i; 2057fe5da05eSIlya Dryomov 2058fe5da05eSIlya Dryomov dout("%s msg %p tid %llu\n", __func__, msg, tid); 2059fe5da05eSIlya Dryomov 2060fe5da05eSIlya Dryomov down_read(&osdc->map_sem); 2061fe5da05eSIlya Dryomov mutex_lock(&osdc->request_mutex); 2062fe5da05eSIlya Dryomov req = lookup_request(&osdc->requests, tid); 2063fe5da05eSIlya Dryomov if (!req) { 2064fe5da05eSIlya Dryomov dout("%s no tid %llu\n", __func__, tid); 2065fe5da05eSIlya Dryomov goto out_unlock; 2066fe5da05eSIlya Dryomov } 2067fe5da05eSIlya Dryomov ceph_osdc_get_request(req); 2068fe5da05eSIlya Dryomov 2069fe5da05eSIlya Dryomov ret = decode_MOSDOpReply(msg, &m); 2070fe5da05eSIlya Dryomov if (ret) { 2071fe5da05eSIlya Dryomov pr_err("failed to decode MOSDOpReply for tid %llu: %d\n", 2072fe5da05eSIlya Dryomov req->r_tid, ret); 2073fe5da05eSIlya Dryomov ceph_msg_dump(msg); 2074fe5da05eSIlya Dryomov goto fail_request; 2075fe5da05eSIlya Dryomov } 2076fe5da05eSIlya Dryomov dout("%s req %p tid %llu flags 0x%llx pgid %llu.%x epoch %u attempt %d v %u'%llu uv %llu\n", 2077fe5da05eSIlya Dryomov __func__, req, req->r_tid, m.flags, m.pgid.pool, m.pgid.seed, 2078fe5da05eSIlya Dryomov m.epoch, m.retry_attempt, le32_to_cpu(m.replay_version.epoch), 2079fe5da05eSIlya Dryomov le64_to_cpu(m.replay_version.version), m.user_version); 2080fe5da05eSIlya Dryomov 2081fe5da05eSIlya Dryomov if (m.retry_attempt >= 0) { 2082fe5da05eSIlya Dryomov if (m.retry_attempt != req->r_attempts - 1) { 2083fe5da05eSIlya Dryomov dout("req %p tid %llu retry_attempt %d != %d, ignoring\n", 2084fe5da05eSIlya Dryomov req, req->r_tid, m.retry_attempt, 2085fe5da05eSIlya Dryomov req->r_attempts - 1); 2086fe5da05eSIlya Dryomov goto out_put; 2087fe5da05eSIlya Dryomov } 2088fe5da05eSIlya Dryomov } else { 2089fe5da05eSIlya Dryomov WARN_ON(1); /* MOSDOpReply v4 is assumed */ 2090fe5da05eSIlya Dryomov } 2091fe5da05eSIlya Dryomov 2092fe5da05eSIlya Dryomov if (!ceph_oloc_empty(&m.redirect.oloc)) { 2093fe5da05eSIlya Dryomov dout("req %p tid %llu redirect pool %lld\n", req, req->r_tid, 2094fe5da05eSIlya Dryomov m.redirect.oloc.pool); 2095205ee118SIlya Dryomov __unregister_request(osdc, req); 2096205ee118SIlya Dryomov 2097fe5da05eSIlya Dryomov ceph_oloc_copy(&req->r_t.target_oloc, &m.redirect.oloc); 2098205ee118SIlya Dryomov 2099205ee118SIlya Dryomov /* 2100205ee118SIlya Dryomov * Start redirect requests with nofail=true. If 2101205ee118SIlya Dryomov * mapping fails, request will end up on the notarget 2102205ee118SIlya Dryomov * list, waiting for the new osdmap (which can take 2103205ee118SIlya Dryomov * a while), even though the original request mapped 2104205ee118SIlya Dryomov * successfully. In the future we might want to follow 2105205ee118SIlya Dryomov * original request's nofail setting here. 2106205ee118SIlya Dryomov */ 2107fe5da05eSIlya Dryomov ret = __ceph_osdc_start_request(osdc, req, true); 2108fe5da05eSIlya Dryomov BUG_ON(ret); 2109205ee118SIlya Dryomov 2110fe5da05eSIlya Dryomov goto out_put; 2111205ee118SIlya Dryomov } 2112205ee118SIlya Dryomov 2113fe5da05eSIlya Dryomov if (m.num_ops != req->r_num_ops) { 2114fe5da05eSIlya Dryomov pr_err("num_ops %d != %d for tid %llu\n", m.num_ops, 2115fe5da05eSIlya Dryomov req->r_num_ops, req->r_tid); 2116fe5da05eSIlya Dryomov goto fail_request; 2117fe5da05eSIlya Dryomov } 2118fe5da05eSIlya Dryomov for (i = 0; i < req->r_num_ops; i++) { 2119fe5da05eSIlya Dryomov dout(" req %p tid %llu op %d rval %d len %u\n", req, 2120fe5da05eSIlya Dryomov req->r_tid, i, m.rval[i], m.outdata_len[i]); 2121fe5da05eSIlya Dryomov req->r_ops[i].rval = m.rval[i]; 2122fe5da05eSIlya Dryomov req->r_ops[i].outdata_len = m.outdata_len[i]; 2123fe5da05eSIlya Dryomov data_len += m.outdata_len[i]; 2124fe5da05eSIlya Dryomov } 2125fe5da05eSIlya Dryomov if (data_len != le32_to_cpu(msg->hdr.data_len)) { 2126fe5da05eSIlya Dryomov pr_err("sum of lens %u != %u for tid %llu\n", data_len, 2127fe5da05eSIlya Dryomov le32_to_cpu(msg->hdr.data_len), req->r_tid); 2128fe5da05eSIlya Dryomov goto fail_request; 2129fe5da05eSIlya Dryomov } 2130fe5da05eSIlya Dryomov dout("%s req %p tid %llu acked %d result %d data_len %u\n", __func__, 2131fe5da05eSIlya Dryomov req, req->r_tid, req->r_got_reply, m.result, data_len); 21323d14c5d2SYehuda Sadeh 2133fe5da05eSIlya Dryomov already_acked = req->r_got_reply; 2134fe5da05eSIlya Dryomov if (!already_acked) { 2135fe5da05eSIlya Dryomov req->r_result = m.result ?: data_len; 2136fe5da05eSIlya Dryomov req->r_replay_version = m.replay_version; /* struct */ 2137fe5da05eSIlya Dryomov req->r_got_reply = true; 2138fe5da05eSIlya Dryomov } else if (!(m.flags & CEPH_OSD_FLAG_ONDISK)) { 2139fe5da05eSIlya Dryomov dout("req %p tid %llu dup ack\n", req, req->r_tid); 2140fe5da05eSIlya Dryomov goto out_put; 21413d14c5d2SYehuda Sadeh } 21423d14c5d2SYehuda Sadeh 2143fe5da05eSIlya Dryomov if (done_request(req, &m)) { 21443d14c5d2SYehuda Sadeh __unregister_request(osdc, req); 2145fe5da05eSIlya Dryomov if (req->r_linger) { 2146fe5da05eSIlya Dryomov WARN_ON(req->r_unsafe_callback); 2147fe5da05eSIlya Dryomov __register_linger_request(osdc, req); 2148fe5da05eSIlya Dryomov } 2149fe5da05eSIlya Dryomov } 21503d14c5d2SYehuda Sadeh 21513d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 2152ff513aceSIlya Dryomov up_read(&osdc->map_sem); 21533d14c5d2SYehuda Sadeh 2154fe5da05eSIlya Dryomov if (done_request(req, &m)) { 2155fe5da05eSIlya Dryomov if (already_acked && req->r_unsafe_callback) { 2156fe5da05eSIlya Dryomov dout("req %p tid %llu safe-cb\n", req, req->r_tid); 215761c5d6bfSYan, Zheng req->r_unsafe_callback(req, false); 2158fe5da05eSIlya Dryomov } else { 2159fe5da05eSIlya Dryomov dout("req %p tid %llu cb\n", req, req->r_tid); 2160fe5da05eSIlya Dryomov __complete_request(req); 216161c5d6bfSYan, Zheng } 2162fe5da05eSIlya Dryomov } else { 2163fe5da05eSIlya Dryomov if (req->r_unsafe_callback) { 2164fe5da05eSIlya Dryomov dout("req %p tid %llu unsafe-cb\n", req, req->r_tid); 2165fe5da05eSIlya Dryomov req->r_unsafe_callback(req, true); 2166fe5da05eSIlya Dryomov } else { 2167fe5da05eSIlya Dryomov WARN_ON(1); 2168fe5da05eSIlya Dryomov } 2169fe5da05eSIlya Dryomov } 2170fe5da05eSIlya Dryomov if (m.flags & CEPH_OSD_FLAG_ONDISK) 2171fe5da05eSIlya Dryomov complete_all(&req->r_safe_completion); 21723d14c5d2SYehuda Sadeh 21733d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 21743d14c5d2SYehuda Sadeh return; 2175fe5da05eSIlya Dryomov 2176fe5da05eSIlya Dryomov fail_request: 2177fe5da05eSIlya Dryomov req->r_result = -EIO; 2178fe5da05eSIlya Dryomov __unregister_request(osdc, req); 2179fe5da05eSIlya Dryomov __complete_request(req); 2180fe5da05eSIlya Dryomov complete_all(&req->r_safe_completion); 2181fe5da05eSIlya Dryomov out_put: 2182fe5da05eSIlya Dryomov ceph_osdc_put_request(req); 2183ff513aceSIlya Dryomov out_unlock: 2184ff513aceSIlya Dryomov mutex_unlock(&osdc->request_mutex); 2185ff513aceSIlya Dryomov up_read(&osdc->map_sem); 21863d14c5d2SYehuda Sadeh } 21873d14c5d2SYehuda Sadeh 218842c1b124SIlya Dryomov static void set_pool_was_full(struct ceph_osd_client *osdc) 218942c1b124SIlya Dryomov { 219042c1b124SIlya Dryomov struct rb_node *n; 219142c1b124SIlya Dryomov 219242c1b124SIlya Dryomov for (n = rb_first(&osdc->osdmap->pg_pools); n; n = rb_next(n)) { 219342c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 219442c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 219542c1b124SIlya Dryomov 219642c1b124SIlya Dryomov pi->was_full = __pool_full(pi); 219742c1b124SIlya Dryomov } 219842c1b124SIlya Dryomov } 219942c1b124SIlya Dryomov 22006f6c7006SSage Weil static void reset_changed_osds(struct ceph_osd_client *osdc) 22013d14c5d2SYehuda Sadeh { 22023d14c5d2SYehuda Sadeh struct rb_node *p, *n; 22033d14c5d2SYehuda Sadeh 22047eb71e03SIlya Dryomov dout("%s %p\n", __func__, osdc); 22053d14c5d2SYehuda Sadeh for (p = rb_first(&osdc->osds); p; p = n) { 22066f6c7006SSage Weil struct ceph_osd *osd = rb_entry(p, struct ceph_osd, o_node); 22073d14c5d2SYehuda Sadeh 22083d14c5d2SYehuda Sadeh n = rb_next(p); 22093d14c5d2SYehuda Sadeh if (!ceph_osd_is_up(osdc->osdmap, osd->o_osd) || 22103d14c5d2SYehuda Sadeh memcmp(&osd->o_con.peer_addr, 22113d14c5d2SYehuda Sadeh ceph_osd_addr(osdc->osdmap, 22123d14c5d2SYehuda Sadeh osd->o_osd), 22133d14c5d2SYehuda Sadeh sizeof(struct ceph_entity_addr)) != 0) 22143d14c5d2SYehuda Sadeh __reset_osd(osdc, osd); 22153d14c5d2SYehuda Sadeh } 22163d14c5d2SYehuda Sadeh } 22173d14c5d2SYehuda Sadeh 22183d14c5d2SYehuda Sadeh /* 22196f6c7006SSage Weil * Requeue requests whose mapping to an OSD has changed. If requests map to 22206f6c7006SSage Weil * no osd, request a new map. 22213d14c5d2SYehuda Sadeh * 2222e6d50f67SAlex Elder * Caller should hold map_sem for read. 22233d14c5d2SYehuda Sadeh */ 22249a1ea2dbSJosh Durgin static void kick_requests(struct ceph_osd_client *osdc, bool force_resend, 22259a1ea2dbSJosh Durgin bool force_resend_writes) 22263d14c5d2SYehuda Sadeh { 2227a40c4f10SYehuda Sadeh struct ceph_osd_request *req, *nreq; 22286f6c7006SSage Weil struct rb_node *p; 22296f6c7006SSage Weil int needmap = 0; 22306f6c7006SSage Weil int err; 22319a1ea2dbSJosh Durgin bool force_resend_req; 22323d14c5d2SYehuda Sadeh 22339a1ea2dbSJosh Durgin dout("kick_requests %s %s\n", force_resend ? " (force resend)" : "", 22349a1ea2dbSJosh Durgin force_resend_writes ? " (force resend writes)" : ""); 22353d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 22366194ea89SSage Weil for (p = rb_first(&osdc->requests); p; ) { 22376f6c7006SSage Weil req = rb_entry(p, struct ceph_osd_request, r_node); 22386194ea89SSage Weil p = rb_next(p); 2239ab60b16dSAlex Elder 2240ab60b16dSAlex Elder /* 2241ab60b16dSAlex Elder * For linger requests that have not yet been 2242ab60b16dSAlex Elder * registered, move them to the linger list; they'll 2243ab60b16dSAlex Elder * be sent to the osd in the loop below. Unregister 2244ab60b16dSAlex Elder * the request before re-registering it as a linger 2245ab60b16dSAlex Elder * request to ensure the __map_request() below 2246ab60b16dSAlex Elder * will decide it needs to be sent. 2247ab60b16dSAlex Elder */ 2248ab60b16dSAlex Elder if (req->r_linger && list_empty(&req->r_linger_item)) { 2249ab60b16dSAlex Elder dout("%p tid %llu restart on osd%d\n", 2250ab60b16dSAlex Elder req, req->r_tid, 2251ab60b16dSAlex Elder req->r_osd ? req->r_osd->o_osd : -1); 225296e4dac6SAlex Elder ceph_osdc_get_request(req); 2253ab60b16dSAlex Elder __unregister_request(osdc, req); 2254ab60b16dSAlex Elder __register_linger_request(osdc, req); 225596e4dac6SAlex Elder ceph_osdc_put_request(req); 2256ab60b16dSAlex Elder continue; 2257ab60b16dSAlex Elder } 2258ab60b16dSAlex Elder 22599a1ea2dbSJosh Durgin force_resend_req = force_resend || 22609a1ea2dbSJosh Durgin (force_resend_writes && 22619a1ea2dbSJosh Durgin req->r_flags & CEPH_OSD_FLAG_WRITE); 22629a1ea2dbSJosh Durgin err = __map_request(osdc, req, force_resend_req); 22636f6c7006SSage Weil if (err < 0) 22646f6c7006SSage Weil continue; /* error */ 22656f6c7006SSage Weil if (req->r_osd == NULL) { 22666f6c7006SSage Weil dout("%p tid %llu maps to no osd\n", req, req->r_tid); 22676f6c7006SSage Weil needmap++; /* request a newer map */ 22686f6c7006SSage Weil } else if (err > 0) { 22696194ea89SSage Weil if (!req->r_linger) { 22706194ea89SSage Weil dout("%p tid %llu requeued on osd%d\n", req, 22716194ea89SSage Weil req->r_tid, 22726f6c7006SSage Weil req->r_osd ? req->r_osd->o_osd : -1); 22736f6c7006SSage Weil req->r_flags |= CEPH_OSD_FLAG_RETRY; 22746f6c7006SSage Weil } 22756f6c7006SSage Weil } 22766194ea89SSage Weil } 2277a40c4f10SYehuda Sadeh 2278a40c4f10SYehuda Sadeh list_for_each_entry_safe(req, nreq, &osdc->req_linger, 2279a40c4f10SYehuda Sadeh r_linger_item) { 2280a40c4f10SYehuda Sadeh dout("linger req=%p req->r_osd=%p\n", req, req->r_osd); 2281a40c4f10SYehuda Sadeh 22829a1ea2dbSJosh Durgin err = __map_request(osdc, req, 22839a1ea2dbSJosh Durgin force_resend || force_resend_writes); 2284ab60b16dSAlex Elder dout("__map_request returned %d\n", err); 2285a40c4f10SYehuda Sadeh if (err < 0) 2286a40c4f10SYehuda Sadeh continue; /* hrm! */ 2287b0494532SIlya Dryomov if (req->r_osd == NULL || err > 0) { 2288a40c4f10SYehuda Sadeh if (req->r_osd == NULL) { 2289b0494532SIlya Dryomov dout("lingering %p tid %llu maps to no osd\n", 2290b0494532SIlya Dryomov req, req->r_tid); 2291b0494532SIlya Dryomov /* 2292b0494532SIlya Dryomov * A homeless lingering request makes 2293b0494532SIlya Dryomov * no sense, as it's job is to keep 2294b0494532SIlya Dryomov * a particular OSD connection open. 2295b0494532SIlya Dryomov * Request a newer map and kick the 2296b0494532SIlya Dryomov * request, knowing that it won't be 2297b0494532SIlya Dryomov * resent until we actually get a map 2298b0494532SIlya Dryomov * that can tell us where to send it. 2299b0494532SIlya Dryomov */ 2300b0494532SIlya Dryomov needmap++; 2301a40c4f10SYehuda Sadeh } 2302a40c4f10SYehuda Sadeh 2303b0494532SIlya Dryomov dout("kicking lingering %p tid %llu osd%d\n", req, 2304b0494532SIlya Dryomov req->r_tid, req->r_osd ? req->r_osd->o_osd : -1); 2305a40c4f10SYehuda Sadeh __register_request(osdc, req); 2306c89ce05eSAlex Elder __unregister_linger_request(osdc, req); 2307a40c4f10SYehuda Sadeh } 2308b0494532SIlya Dryomov } 230914d2f38dSAlex Elder reset_changed_osds(osdc); 23103d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 23113d14c5d2SYehuda Sadeh 23123d14c5d2SYehuda Sadeh if (needmap) { 23133d14c5d2SYehuda Sadeh dout("%d requests for down osds, need new map\n", needmap); 23143d14c5d2SYehuda Sadeh ceph_monc_request_next_osdmap(&osdc->client->monc); 23153d14c5d2SYehuda Sadeh } 23163d14c5d2SYehuda Sadeh } 23176f6c7006SSage Weil 231842c1b124SIlya Dryomov static int handle_one_map(struct ceph_osd_client *osdc, 231942c1b124SIlya Dryomov void *p, void *end, bool incremental) 232042c1b124SIlya Dryomov { 232142c1b124SIlya Dryomov struct ceph_osdmap *newmap; 232242c1b124SIlya Dryomov struct rb_node *n; 232342c1b124SIlya Dryomov bool skipped_map = false; 232442c1b124SIlya Dryomov bool was_full; 232542c1b124SIlya Dryomov 232642c1b124SIlya Dryomov was_full = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL); 232742c1b124SIlya Dryomov set_pool_was_full(osdc); 232842c1b124SIlya Dryomov 232942c1b124SIlya Dryomov if (incremental) 233042c1b124SIlya Dryomov newmap = osdmap_apply_incremental(&p, end, osdc->osdmap); 233142c1b124SIlya Dryomov else 233242c1b124SIlya Dryomov newmap = ceph_osdmap_decode(&p, end); 233342c1b124SIlya Dryomov if (IS_ERR(newmap)) 233442c1b124SIlya Dryomov return PTR_ERR(newmap); 233542c1b124SIlya Dryomov 233642c1b124SIlya Dryomov if (newmap != osdc->osdmap) { 233742c1b124SIlya Dryomov /* 233842c1b124SIlya Dryomov * Preserve ->was_full before destroying the old map. 233942c1b124SIlya Dryomov * For pools that weren't in the old map, ->was_full 234042c1b124SIlya Dryomov * should be false. 234142c1b124SIlya Dryomov */ 234242c1b124SIlya Dryomov for (n = rb_first(&newmap->pg_pools); n; n = rb_next(n)) { 234342c1b124SIlya Dryomov struct ceph_pg_pool_info *pi = 234442c1b124SIlya Dryomov rb_entry(n, struct ceph_pg_pool_info, node); 234542c1b124SIlya Dryomov struct ceph_pg_pool_info *old_pi; 234642c1b124SIlya Dryomov 234742c1b124SIlya Dryomov old_pi = ceph_pg_pool_by_id(osdc->osdmap, pi->id); 234842c1b124SIlya Dryomov if (old_pi) 234942c1b124SIlya Dryomov pi->was_full = old_pi->was_full; 235042c1b124SIlya Dryomov else 235142c1b124SIlya Dryomov WARN_ON(pi->was_full); 235242c1b124SIlya Dryomov } 235342c1b124SIlya Dryomov 235442c1b124SIlya Dryomov if (osdc->osdmap->epoch && 235542c1b124SIlya Dryomov osdc->osdmap->epoch + 1 < newmap->epoch) { 235642c1b124SIlya Dryomov WARN_ON(incremental); 235742c1b124SIlya Dryomov skipped_map = true; 235842c1b124SIlya Dryomov } 235942c1b124SIlya Dryomov 236042c1b124SIlya Dryomov ceph_osdmap_destroy(osdc->osdmap); 236142c1b124SIlya Dryomov osdc->osdmap = newmap; 236242c1b124SIlya Dryomov } 236342c1b124SIlya Dryomov 236442c1b124SIlya Dryomov was_full &= !ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL); 236542c1b124SIlya Dryomov kick_requests(osdc, skipped_map, was_full); 236642c1b124SIlya Dryomov 236742c1b124SIlya Dryomov return 0; 236842c1b124SIlya Dryomov } 23696f6c7006SSage Weil 23703d14c5d2SYehuda Sadeh /* 23713d14c5d2SYehuda Sadeh * Process updated osd map. 23723d14c5d2SYehuda Sadeh * 23733d14c5d2SYehuda Sadeh * The message contains any number of incremental and full maps, normally 23743d14c5d2SYehuda Sadeh * indicating some sort of topology change in the cluster. Kick requests 23753d14c5d2SYehuda Sadeh * off to different OSDs as needed. 23763d14c5d2SYehuda Sadeh */ 23773d14c5d2SYehuda Sadeh void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) 23783d14c5d2SYehuda Sadeh { 237942c1b124SIlya Dryomov void *p = msg->front.iov_base; 238042c1b124SIlya Dryomov void *const end = p + msg->front.iov_len; 23813d14c5d2SYehuda Sadeh u32 nr_maps, maplen; 23823d14c5d2SYehuda Sadeh u32 epoch; 23833d14c5d2SYehuda Sadeh struct ceph_fsid fsid; 238442c1b124SIlya Dryomov bool handled_incremental = false; 238542c1b124SIlya Dryomov bool was_pauserd, was_pausewr; 238642c1b124SIlya Dryomov bool pauserd, pausewr; 238742c1b124SIlya Dryomov int err; 23883d14c5d2SYehuda Sadeh 238942c1b124SIlya Dryomov dout("%s have %u\n", __func__, osdc->osdmap->epoch); 239042c1b124SIlya Dryomov down_write(&osdc->map_sem); 23913d14c5d2SYehuda Sadeh 23923d14c5d2SYehuda Sadeh /* verify fsid */ 23933d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, sizeof(fsid), bad); 23943d14c5d2SYehuda Sadeh ceph_decode_copy(&p, &fsid, sizeof(fsid)); 23953d14c5d2SYehuda Sadeh if (ceph_check_fsid(osdc->client, &fsid) < 0) 239642c1b124SIlya Dryomov goto bad; 23973d14c5d2SYehuda Sadeh 239842c1b124SIlya Dryomov was_pauserd = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD); 239942c1b124SIlya Dryomov was_pausewr = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR) || 240042c1b124SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 240142c1b124SIlya Dryomov have_pool_full(osdc); 24029a1ea2dbSJosh Durgin 24033d14c5d2SYehuda Sadeh /* incremental maps */ 24043d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 24053d14c5d2SYehuda Sadeh dout(" %d inc maps\n", nr_maps); 24063d14c5d2SYehuda Sadeh while (nr_maps > 0) { 24073d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 24083d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 24093d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 24103d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 241142c1b124SIlya Dryomov if (osdc->osdmap->epoch && 241242c1b124SIlya Dryomov osdc->osdmap->epoch + 1 == epoch) { 24133d14c5d2SYehuda Sadeh dout("applying incremental map %u len %d\n", 24143d14c5d2SYehuda Sadeh epoch, maplen); 241542c1b124SIlya Dryomov err = handle_one_map(osdc, p, p + maplen, true); 241642c1b124SIlya Dryomov if (err) 24173d14c5d2SYehuda Sadeh goto bad; 241842c1b124SIlya Dryomov handled_incremental = true; 24193d14c5d2SYehuda Sadeh } else { 24203d14c5d2SYehuda Sadeh dout("ignoring incremental map %u len %d\n", 24213d14c5d2SYehuda Sadeh epoch, maplen); 24223d14c5d2SYehuda Sadeh } 242342c1b124SIlya Dryomov p += maplen; 24243d14c5d2SYehuda Sadeh nr_maps--; 24253d14c5d2SYehuda Sadeh } 242642c1b124SIlya Dryomov if (handled_incremental) 24273d14c5d2SYehuda Sadeh goto done; 24283d14c5d2SYehuda Sadeh 24293d14c5d2SYehuda Sadeh /* full maps */ 24303d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 24313d14c5d2SYehuda Sadeh dout(" %d full maps\n", nr_maps); 24323d14c5d2SYehuda Sadeh while (nr_maps) { 24333d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 24343d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 24353d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 24363d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 24373d14c5d2SYehuda Sadeh if (nr_maps > 1) { 24383d14c5d2SYehuda Sadeh dout("skipping non-latest full map %u len %d\n", 24393d14c5d2SYehuda Sadeh epoch, maplen); 2440e5253a7bSIlya Dryomov } else if (osdc->osdmap->epoch >= epoch) { 24413d14c5d2SYehuda Sadeh dout("skipping full map %u len %d, " 24423d14c5d2SYehuda Sadeh "older than our %u\n", epoch, maplen, 24433d14c5d2SYehuda Sadeh osdc->osdmap->epoch); 24443d14c5d2SYehuda Sadeh } else { 24453d14c5d2SYehuda Sadeh dout("taking full map %u len %d\n", epoch, maplen); 244642c1b124SIlya Dryomov err = handle_one_map(osdc, p, p + maplen, false); 244742c1b124SIlya Dryomov if (err) 24483d14c5d2SYehuda Sadeh goto bad; 24493d14c5d2SYehuda Sadeh } 24503d14c5d2SYehuda Sadeh p += maplen; 24513d14c5d2SYehuda Sadeh nr_maps--; 24523d14c5d2SYehuda Sadeh } 24533d14c5d2SYehuda Sadeh 24543d14c5d2SYehuda Sadeh done: 2455cd634fb6SSage Weil /* 2456cd634fb6SSage Weil * subscribe to subsequent osdmap updates if full to ensure 2457cd634fb6SSage Weil * we find out when we are no longer full and stop returning 2458cd634fb6SSage Weil * ENOSPC. 2459cd634fb6SSage Weil */ 246042c1b124SIlya Dryomov pauserd = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSERD); 246142c1b124SIlya Dryomov pausewr = ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_PAUSEWR) || 246242c1b124SIlya Dryomov ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL) || 246342c1b124SIlya Dryomov have_pool_full(osdc); 246442c1b124SIlya Dryomov if (was_pauserd || was_pausewr || pauserd || pausewr) 246542c1b124SIlya Dryomov maybe_request_map(osdc); 2466cd634fb6SSage Weil 2467f9d25199SAlex Elder mutex_lock(&osdc->request_mutex); 2468f9d25199SAlex Elder __send_queued(osdc); 2469f9d25199SAlex Elder mutex_unlock(&osdc->request_mutex); 247042c1b124SIlya Dryomov 247142c1b124SIlya Dryomov ceph_monc_got_map(&osdc->client->monc, CEPH_SUB_OSDMAP, 247242c1b124SIlya Dryomov osdc->osdmap->epoch); 247342c1b124SIlya Dryomov up_write(&osdc->map_sem); 24743d14c5d2SYehuda Sadeh wake_up_all(&osdc->client->auth_wq); 24753d14c5d2SYehuda Sadeh return; 24763d14c5d2SYehuda Sadeh 24773d14c5d2SYehuda Sadeh bad: 24783d14c5d2SYehuda Sadeh pr_err("osdc handle_map corrupt msg\n"); 24793d14c5d2SYehuda Sadeh ceph_msg_dump(msg); 24803d14c5d2SYehuda Sadeh up_write(&osdc->map_sem); 24813d14c5d2SYehuda Sadeh } 24823d14c5d2SYehuda Sadeh 24833d14c5d2SYehuda Sadeh /* 2484a40c4f10SYehuda Sadeh * watch/notify callback event infrastructure 2485a40c4f10SYehuda Sadeh * 2486a40c4f10SYehuda Sadeh * These callbacks are used both for watch and notify operations. 2487a40c4f10SYehuda Sadeh */ 2488a40c4f10SYehuda Sadeh static void __release_event(struct kref *kref) 2489a40c4f10SYehuda Sadeh { 2490a40c4f10SYehuda Sadeh struct ceph_osd_event *event = 2491a40c4f10SYehuda Sadeh container_of(kref, struct ceph_osd_event, kref); 2492a40c4f10SYehuda Sadeh 2493a40c4f10SYehuda Sadeh dout("__release_event %p\n", event); 2494a40c4f10SYehuda Sadeh kfree(event); 2495a40c4f10SYehuda Sadeh } 2496a40c4f10SYehuda Sadeh 2497a40c4f10SYehuda Sadeh static void get_event(struct ceph_osd_event *event) 2498a40c4f10SYehuda Sadeh { 2499a40c4f10SYehuda Sadeh kref_get(&event->kref); 2500a40c4f10SYehuda Sadeh } 2501a40c4f10SYehuda Sadeh 2502a40c4f10SYehuda Sadeh void ceph_osdc_put_event(struct ceph_osd_event *event) 2503a40c4f10SYehuda Sadeh { 2504a40c4f10SYehuda Sadeh kref_put(&event->kref, __release_event); 2505a40c4f10SYehuda Sadeh } 2506a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_put_event); 2507a40c4f10SYehuda Sadeh 2508a40c4f10SYehuda Sadeh static void __insert_event(struct ceph_osd_client *osdc, 2509a40c4f10SYehuda Sadeh struct ceph_osd_event *new) 2510a40c4f10SYehuda Sadeh { 2511a40c4f10SYehuda Sadeh struct rb_node **p = &osdc->event_tree.rb_node; 2512a40c4f10SYehuda Sadeh struct rb_node *parent = NULL; 2513a40c4f10SYehuda Sadeh struct ceph_osd_event *event = NULL; 2514a40c4f10SYehuda Sadeh 2515a40c4f10SYehuda Sadeh while (*p) { 2516a40c4f10SYehuda Sadeh parent = *p; 2517a40c4f10SYehuda Sadeh event = rb_entry(parent, struct ceph_osd_event, node); 2518a40c4f10SYehuda Sadeh if (new->cookie < event->cookie) 2519a40c4f10SYehuda Sadeh p = &(*p)->rb_left; 2520a40c4f10SYehuda Sadeh else if (new->cookie > event->cookie) 2521a40c4f10SYehuda Sadeh p = &(*p)->rb_right; 2522a40c4f10SYehuda Sadeh else 2523a40c4f10SYehuda Sadeh BUG(); 2524a40c4f10SYehuda Sadeh } 2525a40c4f10SYehuda Sadeh 2526a40c4f10SYehuda Sadeh rb_link_node(&new->node, parent, p); 2527a40c4f10SYehuda Sadeh rb_insert_color(&new->node, &osdc->event_tree); 2528a40c4f10SYehuda Sadeh } 2529a40c4f10SYehuda Sadeh 2530a40c4f10SYehuda Sadeh static struct ceph_osd_event *__find_event(struct ceph_osd_client *osdc, 2531a40c4f10SYehuda Sadeh u64 cookie) 2532a40c4f10SYehuda Sadeh { 2533a40c4f10SYehuda Sadeh struct rb_node **p = &osdc->event_tree.rb_node; 2534a40c4f10SYehuda Sadeh struct rb_node *parent = NULL; 2535a40c4f10SYehuda Sadeh struct ceph_osd_event *event = NULL; 2536a40c4f10SYehuda Sadeh 2537a40c4f10SYehuda Sadeh while (*p) { 2538a40c4f10SYehuda Sadeh parent = *p; 2539a40c4f10SYehuda Sadeh event = rb_entry(parent, struct ceph_osd_event, node); 2540a40c4f10SYehuda Sadeh if (cookie < event->cookie) 2541a40c4f10SYehuda Sadeh p = &(*p)->rb_left; 2542a40c4f10SYehuda Sadeh else if (cookie > event->cookie) 2543a40c4f10SYehuda Sadeh p = &(*p)->rb_right; 2544a40c4f10SYehuda Sadeh else 2545a40c4f10SYehuda Sadeh return event; 2546a40c4f10SYehuda Sadeh } 2547a40c4f10SYehuda Sadeh return NULL; 2548a40c4f10SYehuda Sadeh } 2549a40c4f10SYehuda Sadeh 2550a40c4f10SYehuda Sadeh static void __remove_event(struct ceph_osd_event *event) 2551a40c4f10SYehuda Sadeh { 2552a40c4f10SYehuda Sadeh struct ceph_osd_client *osdc = event->osdc; 2553a40c4f10SYehuda Sadeh 2554a40c4f10SYehuda Sadeh if (!RB_EMPTY_NODE(&event->node)) { 2555a40c4f10SYehuda Sadeh dout("__remove_event removed %p\n", event); 2556a40c4f10SYehuda Sadeh rb_erase(&event->node, &osdc->event_tree); 2557a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 2558a40c4f10SYehuda Sadeh } else { 2559a40c4f10SYehuda Sadeh dout("__remove_event didn't remove %p\n", event); 2560a40c4f10SYehuda Sadeh } 2561a40c4f10SYehuda Sadeh } 2562a40c4f10SYehuda Sadeh 2563a40c4f10SYehuda Sadeh int ceph_osdc_create_event(struct ceph_osd_client *osdc, 2564a40c4f10SYehuda Sadeh void (*event_cb)(u64, u64, u8, void *), 25653c663bbdSAlex Elder void *data, struct ceph_osd_event **pevent) 2566a40c4f10SYehuda Sadeh { 2567a40c4f10SYehuda Sadeh struct ceph_osd_event *event; 2568a40c4f10SYehuda Sadeh 2569a40c4f10SYehuda Sadeh event = kmalloc(sizeof(*event), GFP_NOIO); 2570a40c4f10SYehuda Sadeh if (!event) 2571a40c4f10SYehuda Sadeh return -ENOMEM; 2572a40c4f10SYehuda Sadeh 2573a40c4f10SYehuda Sadeh dout("create_event %p\n", event); 2574a40c4f10SYehuda Sadeh event->cb = event_cb; 25753c663bbdSAlex Elder event->one_shot = 0; 2576a40c4f10SYehuda Sadeh event->data = data; 2577a40c4f10SYehuda Sadeh event->osdc = osdc; 2578a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&event->osd_node); 25793ee5234dSAlex Elder RB_CLEAR_NODE(&event->node); 2580a40c4f10SYehuda Sadeh kref_init(&event->kref); /* one ref for us */ 2581a40c4f10SYehuda Sadeh kref_get(&event->kref); /* one ref for the caller */ 2582a40c4f10SYehuda Sadeh 2583a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 2584a40c4f10SYehuda Sadeh event->cookie = ++osdc->event_count; 2585a40c4f10SYehuda Sadeh __insert_event(osdc, event); 2586a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 2587a40c4f10SYehuda Sadeh 2588a40c4f10SYehuda Sadeh *pevent = event; 2589a40c4f10SYehuda Sadeh return 0; 2590a40c4f10SYehuda Sadeh } 2591a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_create_event); 2592a40c4f10SYehuda Sadeh 2593a40c4f10SYehuda Sadeh void ceph_osdc_cancel_event(struct ceph_osd_event *event) 2594a40c4f10SYehuda Sadeh { 2595a40c4f10SYehuda Sadeh struct ceph_osd_client *osdc = event->osdc; 2596a40c4f10SYehuda Sadeh 2597a40c4f10SYehuda Sadeh dout("cancel_event %p\n", event); 2598a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 2599a40c4f10SYehuda Sadeh __remove_event(event); 2600a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 2601a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); /* caller's */ 2602a40c4f10SYehuda Sadeh } 2603a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_cancel_event); 2604a40c4f10SYehuda Sadeh 2605a40c4f10SYehuda Sadeh 2606a40c4f10SYehuda Sadeh static void do_event_work(struct work_struct *work) 2607a40c4f10SYehuda Sadeh { 2608a40c4f10SYehuda Sadeh struct ceph_osd_event_work *event_work = 2609a40c4f10SYehuda Sadeh container_of(work, struct ceph_osd_event_work, work); 2610a40c4f10SYehuda Sadeh struct ceph_osd_event *event = event_work->event; 2611a40c4f10SYehuda Sadeh u64 ver = event_work->ver; 2612a40c4f10SYehuda Sadeh u64 notify_id = event_work->notify_id; 2613a40c4f10SYehuda Sadeh u8 opcode = event_work->opcode; 2614a40c4f10SYehuda Sadeh 2615a40c4f10SYehuda Sadeh dout("do_event_work completing %p\n", event); 2616a40c4f10SYehuda Sadeh event->cb(ver, notify_id, opcode, event->data); 2617a40c4f10SYehuda Sadeh dout("do_event_work completed %p\n", event); 2618a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 2619a40c4f10SYehuda Sadeh kfree(event_work); 2620a40c4f10SYehuda Sadeh } 2621a40c4f10SYehuda Sadeh 2622a40c4f10SYehuda Sadeh 2623a40c4f10SYehuda Sadeh /* 2624a40c4f10SYehuda Sadeh * Process osd watch notifications 2625a40c4f10SYehuda Sadeh */ 26263c663bbdSAlex Elder static void handle_watch_notify(struct ceph_osd_client *osdc, 26273c663bbdSAlex Elder struct ceph_msg *msg) 2628a40c4f10SYehuda Sadeh { 2629a40c4f10SYehuda Sadeh void *p, *end; 2630a40c4f10SYehuda Sadeh u8 proto_ver; 2631a40c4f10SYehuda Sadeh u64 cookie, ver, notify_id; 2632a40c4f10SYehuda Sadeh u8 opcode; 2633a40c4f10SYehuda Sadeh struct ceph_osd_event *event; 2634a40c4f10SYehuda Sadeh struct ceph_osd_event_work *event_work; 2635a40c4f10SYehuda Sadeh 2636a40c4f10SYehuda Sadeh p = msg->front.iov_base; 2637a40c4f10SYehuda Sadeh end = p + msg->front.iov_len; 2638a40c4f10SYehuda Sadeh 2639a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, proto_ver, bad); 2640a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, opcode, bad); 2641a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, cookie, bad); 2642a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, ver, bad); 2643a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, notify_id, bad); 2644a40c4f10SYehuda Sadeh 2645a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 2646a40c4f10SYehuda Sadeh event = __find_event(osdc, cookie); 2647a40c4f10SYehuda Sadeh if (event) { 26483c663bbdSAlex Elder BUG_ON(event->one_shot); 2649a40c4f10SYehuda Sadeh get_event(event); 2650a40c4f10SYehuda Sadeh } 2651a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 2652a40c4f10SYehuda Sadeh dout("handle_watch_notify cookie %lld ver %lld event %p\n", 2653a40c4f10SYehuda Sadeh cookie, ver, event); 2654a40c4f10SYehuda Sadeh if (event) { 2655a40c4f10SYehuda Sadeh event_work = kmalloc(sizeof(*event_work), GFP_NOIO); 2656a40c4f10SYehuda Sadeh if (!event_work) { 265791883cd2SIlya Dryomov pr_err("couldn't allocate event_work\n"); 265891883cd2SIlya Dryomov ceph_osdc_put_event(event); 265991883cd2SIlya Dryomov return; 2660a40c4f10SYehuda Sadeh } 26616b0ae409SMariusz Kozlowski INIT_WORK(&event_work->work, do_event_work); 2662a40c4f10SYehuda Sadeh event_work->event = event; 2663a40c4f10SYehuda Sadeh event_work->ver = ver; 2664a40c4f10SYehuda Sadeh event_work->notify_id = notify_id; 2665a40c4f10SYehuda Sadeh event_work->opcode = opcode; 266691883cd2SIlya Dryomov 266791883cd2SIlya Dryomov queue_work(osdc->notify_wq, &event_work->work); 2668a40c4f10SYehuda Sadeh } 2669a40c4f10SYehuda Sadeh 2670a40c4f10SYehuda Sadeh return; 2671a40c4f10SYehuda Sadeh 2672a40c4f10SYehuda Sadeh bad: 2673a40c4f10SYehuda Sadeh pr_err("osdc handle_watch_notify corrupt msg\n"); 2674a40c4f10SYehuda Sadeh } 2675a40c4f10SYehuda Sadeh 2676a40c4f10SYehuda Sadeh /* 26773d14c5d2SYehuda Sadeh * Register request, send initial attempt. 26783d14c5d2SYehuda Sadeh */ 26793d14c5d2SYehuda Sadeh int ceph_osdc_start_request(struct ceph_osd_client *osdc, 26803d14c5d2SYehuda Sadeh struct ceph_osd_request *req, 26813d14c5d2SYehuda Sadeh bool nofail) 26823d14c5d2SYehuda Sadeh { 26830bbfdfe8SIlya Dryomov int rc; 26843d14c5d2SYehuda Sadeh 26853d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 26863d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 26870bbfdfe8SIlya Dryomov 26880bbfdfe8SIlya Dryomov rc = __ceph_osdc_start_request(osdc, req, nofail); 26890bbfdfe8SIlya Dryomov 26903d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 26913d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 26920bbfdfe8SIlya Dryomov 26933d14c5d2SYehuda Sadeh return rc; 26943d14c5d2SYehuda Sadeh } 26953d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_start_request); 26963d14c5d2SYehuda Sadeh 26973d14c5d2SYehuda Sadeh /* 2698c9f9b93dSIlya Dryomov * Unregister a registered request. The request is not completed (i.e. 2699c9f9b93dSIlya Dryomov * no callbacks or wakeups) - higher layers are supposed to know what 2700c9f9b93dSIlya Dryomov * they are canceling. 2701c9f9b93dSIlya Dryomov */ 2702c9f9b93dSIlya Dryomov void ceph_osdc_cancel_request(struct ceph_osd_request *req) 2703c9f9b93dSIlya Dryomov { 2704c9f9b93dSIlya Dryomov struct ceph_osd_client *osdc = req->r_osdc; 2705c9f9b93dSIlya Dryomov 2706c9f9b93dSIlya Dryomov mutex_lock(&osdc->request_mutex); 2707c9f9b93dSIlya Dryomov if (req->r_linger) 2708c9f9b93dSIlya Dryomov __unregister_linger_request(osdc, req); 2709c9f9b93dSIlya Dryomov __unregister_request(osdc, req); 2710c9f9b93dSIlya Dryomov mutex_unlock(&osdc->request_mutex); 2711c9f9b93dSIlya Dryomov 2712c9f9b93dSIlya Dryomov dout("%s %p tid %llu canceled\n", __func__, req, req->r_tid); 2713c9f9b93dSIlya Dryomov } 2714c9f9b93dSIlya Dryomov EXPORT_SYMBOL(ceph_osdc_cancel_request); 2715c9f9b93dSIlya Dryomov 2716c9f9b93dSIlya Dryomov /* 27173d14c5d2SYehuda Sadeh * wait for a request to complete 27183d14c5d2SYehuda Sadeh */ 27193d14c5d2SYehuda Sadeh int ceph_osdc_wait_request(struct ceph_osd_client *osdc, 27203d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 27213d14c5d2SYehuda Sadeh { 27223d14c5d2SYehuda Sadeh int rc; 27233d14c5d2SYehuda Sadeh 2724c9f9b93dSIlya Dryomov dout("%s %p tid %llu\n", __func__, req, req->r_tid); 2725c9f9b93dSIlya Dryomov 27263d14c5d2SYehuda Sadeh rc = wait_for_completion_interruptible(&req->r_completion); 27273d14c5d2SYehuda Sadeh if (rc < 0) { 2728c9f9b93dSIlya Dryomov dout("%s %p tid %llu interrupted\n", __func__, req, req->r_tid); 2729c9f9b93dSIlya Dryomov ceph_osdc_cancel_request(req); 2730fe5da05eSIlya Dryomov 2731fe5da05eSIlya Dryomov /* kludge - need to to wake ceph_osdc_sync() */ 2732fe5da05eSIlya Dryomov complete_all(&req->r_safe_completion); 27333d14c5d2SYehuda Sadeh return rc; 27343d14c5d2SYehuda Sadeh } 27353d14c5d2SYehuda Sadeh 2736c9f9b93dSIlya Dryomov dout("%s %p tid %llu result %d\n", __func__, req, req->r_tid, 2737c9f9b93dSIlya Dryomov req->r_result); 27383d14c5d2SYehuda Sadeh return req->r_result; 27393d14c5d2SYehuda Sadeh } 27403d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_wait_request); 27413d14c5d2SYehuda Sadeh 27423d14c5d2SYehuda Sadeh /* 27433d14c5d2SYehuda Sadeh * sync - wait for all in-flight requests to flush. avoid starvation. 27443d14c5d2SYehuda Sadeh */ 27453d14c5d2SYehuda Sadeh void ceph_osdc_sync(struct ceph_osd_client *osdc) 27463d14c5d2SYehuda Sadeh { 27473d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 27483d14c5d2SYehuda Sadeh u64 last_tid, next_tid = 0; 27493d14c5d2SYehuda Sadeh 27503d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 27513d14c5d2SYehuda Sadeh last_tid = osdc->last_tid; 27523d14c5d2SYehuda Sadeh while (1) { 27533d14c5d2SYehuda Sadeh req = __lookup_request_ge(osdc, next_tid); 27543d14c5d2SYehuda Sadeh if (!req) 27553d14c5d2SYehuda Sadeh break; 27563d14c5d2SYehuda Sadeh if (req->r_tid > last_tid) 27573d14c5d2SYehuda Sadeh break; 27583d14c5d2SYehuda Sadeh 27593d14c5d2SYehuda Sadeh next_tid = req->r_tid + 1; 27603d14c5d2SYehuda Sadeh if ((req->r_flags & CEPH_OSD_FLAG_WRITE) == 0) 27613d14c5d2SYehuda Sadeh continue; 27623d14c5d2SYehuda Sadeh 27633d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 27643d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 27653d14c5d2SYehuda Sadeh dout("sync waiting on tid %llu (last is %llu)\n", 27663d14c5d2SYehuda Sadeh req->r_tid, last_tid); 27673d14c5d2SYehuda Sadeh wait_for_completion(&req->r_safe_completion); 27683d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 27693d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 27703d14c5d2SYehuda Sadeh } 27713d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 27723d14c5d2SYehuda Sadeh dout("sync done (thru tid %llu)\n", last_tid); 27733d14c5d2SYehuda Sadeh } 27743d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_sync); 27753d14c5d2SYehuda Sadeh 27763d14c5d2SYehuda Sadeh /* 2777dd935f44SJosh Durgin * Call all pending notify callbacks - for use after a watch is 2778dd935f44SJosh Durgin * unregistered, to make sure no more callbacks for it will be invoked 2779dd935f44SJosh Durgin */ 2780f6479449Sstephen hemminger void ceph_osdc_flush_notifies(struct ceph_osd_client *osdc) 2781dd935f44SJosh Durgin { 2782dd935f44SJosh Durgin flush_workqueue(osdc->notify_wq); 2783dd935f44SJosh Durgin } 2784dd935f44SJosh Durgin EXPORT_SYMBOL(ceph_osdc_flush_notifies); 2785dd935f44SJosh Durgin 2786dd935f44SJosh Durgin 2787dd935f44SJosh Durgin /* 27883d14c5d2SYehuda Sadeh * init, shutdown 27893d14c5d2SYehuda Sadeh */ 27903d14c5d2SYehuda Sadeh int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) 27913d14c5d2SYehuda Sadeh { 27923d14c5d2SYehuda Sadeh int err; 27933d14c5d2SYehuda Sadeh 27943d14c5d2SYehuda Sadeh dout("init\n"); 27953d14c5d2SYehuda Sadeh osdc->client = client; 27963d14c5d2SYehuda Sadeh init_rwsem(&osdc->map_sem); 27973d14c5d2SYehuda Sadeh mutex_init(&osdc->request_mutex); 27983d14c5d2SYehuda Sadeh osdc->last_tid = 0; 27993d14c5d2SYehuda Sadeh osdc->osds = RB_ROOT; 28003d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osdc->osd_lru); 28019dd2845cSIlya Dryomov spin_lock_init(&osdc->osd_lru_lock); 28023d14c5d2SYehuda Sadeh osdc->requests = RB_ROOT; 28033d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osdc->req_lru); 28046f6c7006SSage Weil INIT_LIST_HEAD(&osdc->req_unsent); 28056f6c7006SSage Weil INIT_LIST_HEAD(&osdc->req_notarget); 2806a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&osdc->req_linger); 28073d14c5d2SYehuda Sadeh osdc->num_requests = 0; 28083d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->timeout_work, handle_timeout); 28093d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->osds_timeout_work, handle_osds_timeout); 2810a40c4f10SYehuda Sadeh spin_lock_init(&osdc->event_lock); 2811a40c4f10SYehuda Sadeh osdc->event_tree = RB_ROOT; 2812a40c4f10SYehuda Sadeh osdc->event_count = 0; 28133d14c5d2SYehuda Sadeh 28143d14c5d2SYehuda Sadeh err = -ENOMEM; 2815e5253a7bSIlya Dryomov osdc->osdmap = ceph_osdmap_alloc(); 2816e5253a7bSIlya Dryomov if (!osdc->osdmap) 2817e5253a7bSIlya Dryomov goto out; 2818e5253a7bSIlya Dryomov 28199e767adbSIlya Dryomov osdc->req_mempool = mempool_create_slab_pool(10, 28209e767adbSIlya Dryomov ceph_osd_request_cache); 28213d14c5d2SYehuda Sadeh if (!osdc->req_mempool) 2822e5253a7bSIlya Dryomov goto out_map; 28233d14c5d2SYehuda Sadeh 2824d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op, CEPH_MSG_OSD_OP, 2825711da55dSIlya Dryomov PAGE_SIZE, 10, true, "osd_op"); 28263d14c5d2SYehuda Sadeh if (err < 0) 28273d14c5d2SYehuda Sadeh goto out_mempool; 2828d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op_reply, CEPH_MSG_OSD_OPREPLY, 2829711da55dSIlya Dryomov PAGE_SIZE, 10, true, "osd_op_reply"); 28303d14c5d2SYehuda Sadeh if (err < 0) 28313d14c5d2SYehuda Sadeh goto out_msgpool; 2832a40c4f10SYehuda Sadeh 2833dbcae088SDan Carpenter err = -ENOMEM; 2834a40c4f10SYehuda Sadeh osdc->notify_wq = create_singlethread_workqueue("ceph-watch-notify"); 2835dbcae088SDan Carpenter if (!osdc->notify_wq) 2836c172ec5cSIlya Dryomov goto out_msgpool_reply; 2837c172ec5cSIlya Dryomov 2838fbca9635SIlya Dryomov schedule_delayed_work(&osdc->timeout_work, 2839fbca9635SIlya Dryomov osdc->client->options->osd_keepalive_timeout); 2840b37ee1b9SIlya Dryomov schedule_delayed_work(&osdc->osds_timeout_work, 2841b37ee1b9SIlya Dryomov round_jiffies_relative(osdc->client->options->osd_idle_ttl)); 2842b37ee1b9SIlya Dryomov 28433d14c5d2SYehuda Sadeh return 0; 28443d14c5d2SYehuda Sadeh 2845c172ec5cSIlya Dryomov out_msgpool_reply: 2846c172ec5cSIlya Dryomov ceph_msgpool_destroy(&osdc->msgpool_op_reply); 28473d14c5d2SYehuda Sadeh out_msgpool: 28483d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 28493d14c5d2SYehuda Sadeh out_mempool: 28503d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 2851e5253a7bSIlya Dryomov out_map: 2852e5253a7bSIlya Dryomov ceph_osdmap_destroy(osdc->osdmap); 28533d14c5d2SYehuda Sadeh out: 28543d14c5d2SYehuda Sadeh return err; 28553d14c5d2SYehuda Sadeh } 28563d14c5d2SYehuda Sadeh 28573d14c5d2SYehuda Sadeh void ceph_osdc_stop(struct ceph_osd_client *osdc) 28583d14c5d2SYehuda Sadeh { 2859a40c4f10SYehuda Sadeh flush_workqueue(osdc->notify_wq); 2860a40c4f10SYehuda Sadeh destroy_workqueue(osdc->notify_wq); 28613d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->timeout_work); 28623d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->osds_timeout_work); 286342a2c09fSIlya Dryomov 286442a2c09fSIlya Dryomov mutex_lock(&osdc->request_mutex); 286542a2c09fSIlya Dryomov while (!RB_EMPTY_ROOT(&osdc->osds)) { 286642a2c09fSIlya Dryomov struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds), 286742a2c09fSIlya Dryomov struct ceph_osd, o_node); 286842a2c09fSIlya Dryomov remove_osd(osdc, osd); 286942a2c09fSIlya Dryomov } 287042a2c09fSIlya Dryomov mutex_unlock(&osdc->request_mutex); 287142a2c09fSIlya Dryomov 28723d14c5d2SYehuda Sadeh ceph_osdmap_destroy(osdc->osdmap); 28733d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 28743d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 28753d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op_reply); 28763d14c5d2SYehuda Sadeh } 28773d14c5d2SYehuda Sadeh 28783d14c5d2SYehuda Sadeh /* 28793d14c5d2SYehuda Sadeh * Read some contiguous pages. If we cross a stripe boundary, shorten 28803d14c5d2SYehuda Sadeh * *plen. Return number of bytes read, or error. 28813d14c5d2SYehuda Sadeh */ 28823d14c5d2SYehuda Sadeh int ceph_osdc_readpages(struct ceph_osd_client *osdc, 28833d14c5d2SYehuda Sadeh struct ceph_vino vino, struct ceph_file_layout *layout, 28843d14c5d2SYehuda Sadeh u64 off, u64 *plen, 28853d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 2886b7495fc2SSage Weil struct page **pages, int num_pages, int page_align) 28873d14c5d2SYehuda Sadeh { 28883d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 28893d14c5d2SYehuda Sadeh int rc = 0; 28903d14c5d2SYehuda Sadeh 28913d14c5d2SYehuda Sadeh dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino, 28923d14c5d2SYehuda Sadeh vino.snap, off, *plen); 2893715e4cd4SYan, Zheng req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 0, 1, 28943d14c5d2SYehuda Sadeh CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, 2895acead002SAlex Elder NULL, truncate_seq, truncate_size, 2896153e5167SAlex Elder false); 28976816282dSSage Weil if (IS_ERR(req)) 28986816282dSSage Weil return PTR_ERR(req); 28993d14c5d2SYehuda Sadeh 29003d14c5d2SYehuda Sadeh /* it may be a short read due to an object boundary */ 2901406e2c9fSAlex Elder osd_req_op_extent_osd_data_pages(req, 0, 2902a4ce40a9SAlex Elder pages, *plen, page_align, false, false); 29033d14c5d2SYehuda Sadeh 2904e0c59487SAlex Elder dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n", 290543bfe5deSAlex Elder off, *plen, *plen, page_align); 29063d14c5d2SYehuda Sadeh 29073d14c5d2SYehuda Sadeh rc = ceph_osdc_start_request(osdc, req, false); 29083d14c5d2SYehuda Sadeh if (!rc) 29093d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 29103d14c5d2SYehuda Sadeh 29113d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 29123d14c5d2SYehuda Sadeh dout("readpages result %d\n", rc); 29133d14c5d2SYehuda Sadeh return rc; 29143d14c5d2SYehuda Sadeh } 29153d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_readpages); 29163d14c5d2SYehuda Sadeh 29173d14c5d2SYehuda Sadeh /* 29183d14c5d2SYehuda Sadeh * do a synchronous write on N pages 29193d14c5d2SYehuda Sadeh */ 29203d14c5d2SYehuda Sadeh int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, 29213d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 29223d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 29233d14c5d2SYehuda Sadeh u64 off, u64 len, 29243d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 29253d14c5d2SYehuda Sadeh struct timespec *mtime, 292624808826SAlex Elder struct page **pages, int num_pages) 29273d14c5d2SYehuda Sadeh { 29283d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 29293d14c5d2SYehuda Sadeh int rc = 0; 2930b7495fc2SSage Weil int page_align = off & ~PAGE_MASK; 29313d14c5d2SYehuda Sadeh 2932715e4cd4SYan, Zheng req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 0, 1, 29333d14c5d2SYehuda Sadeh CEPH_OSD_OP_WRITE, 293424808826SAlex Elder CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE, 2935acead002SAlex Elder snapc, truncate_seq, truncate_size, 2936153e5167SAlex Elder true); 29376816282dSSage Weil if (IS_ERR(req)) 29386816282dSSage Weil return PTR_ERR(req); 29393d14c5d2SYehuda Sadeh 29403d14c5d2SYehuda Sadeh /* it may be a short write due to an object boundary */ 2941406e2c9fSAlex Elder osd_req_op_extent_osd_data_pages(req, 0, pages, len, page_align, 294243bfe5deSAlex Elder false, false); 294343bfe5deSAlex Elder dout("writepages %llu~%llu (%llu bytes)\n", off, len, len); 29443d14c5d2SYehuda Sadeh 2945bb873b53SIlya Dryomov req->r_mtime = *mtime; 294687f979d3SAlex Elder rc = ceph_osdc_start_request(osdc, req, true); 29473d14c5d2SYehuda Sadeh if (!rc) 29483d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 29493d14c5d2SYehuda Sadeh 29503d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 29513d14c5d2SYehuda Sadeh if (rc == 0) 29523d14c5d2SYehuda Sadeh rc = len; 29533d14c5d2SYehuda Sadeh dout("writepages result %d\n", rc); 29543d14c5d2SYehuda Sadeh return rc; 29553d14c5d2SYehuda Sadeh } 29563d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_writepages); 29573d14c5d2SYehuda Sadeh 29585522ae0bSAlex Elder int ceph_osdc_setup(void) 29595522ae0bSAlex Elder { 29603f1af42aSIlya Dryomov size_t size = sizeof(struct ceph_osd_request) + 29613f1af42aSIlya Dryomov CEPH_OSD_SLAB_OPS * sizeof(struct ceph_osd_req_op); 29623f1af42aSIlya Dryomov 29635522ae0bSAlex Elder BUG_ON(ceph_osd_request_cache); 29643f1af42aSIlya Dryomov ceph_osd_request_cache = kmem_cache_create("ceph_osd_request", size, 29653f1af42aSIlya Dryomov 0, 0, NULL); 29665522ae0bSAlex Elder 29675522ae0bSAlex Elder return ceph_osd_request_cache ? 0 : -ENOMEM; 29685522ae0bSAlex Elder } 29695522ae0bSAlex Elder EXPORT_SYMBOL(ceph_osdc_setup); 29705522ae0bSAlex Elder 29715522ae0bSAlex Elder void ceph_osdc_cleanup(void) 29725522ae0bSAlex Elder { 29735522ae0bSAlex Elder BUG_ON(!ceph_osd_request_cache); 29745522ae0bSAlex Elder kmem_cache_destroy(ceph_osd_request_cache); 29755522ae0bSAlex Elder ceph_osd_request_cache = NULL; 29765522ae0bSAlex Elder } 29775522ae0bSAlex Elder EXPORT_SYMBOL(ceph_osdc_cleanup); 29785522ae0bSAlex Elder 29793d14c5d2SYehuda Sadeh /* 29803d14c5d2SYehuda Sadeh * handle incoming message 29813d14c5d2SYehuda Sadeh */ 29823d14c5d2SYehuda Sadeh static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) 29833d14c5d2SYehuda Sadeh { 29843d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 29853d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc; 29863d14c5d2SYehuda Sadeh int type = le16_to_cpu(msg->hdr.type); 29873d14c5d2SYehuda Sadeh 29883d14c5d2SYehuda Sadeh if (!osd) 29893d14c5d2SYehuda Sadeh goto out; 29903d14c5d2SYehuda Sadeh osdc = osd->o_osdc; 29913d14c5d2SYehuda Sadeh 29923d14c5d2SYehuda Sadeh switch (type) { 29933d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 29943d14c5d2SYehuda Sadeh ceph_osdc_handle_map(osdc, msg); 29953d14c5d2SYehuda Sadeh break; 29963d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 299770cf052dSShraddha Barke handle_reply(osdc, msg); 29983d14c5d2SYehuda Sadeh break; 2999a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 3000a40c4f10SYehuda Sadeh handle_watch_notify(osdc, msg); 3001a40c4f10SYehuda Sadeh break; 30023d14c5d2SYehuda Sadeh 30033d14c5d2SYehuda Sadeh default: 30043d14c5d2SYehuda Sadeh pr_err("received unknown message type %d %s\n", type, 30053d14c5d2SYehuda Sadeh ceph_msg_type_name(type)); 30063d14c5d2SYehuda Sadeh } 30073d14c5d2SYehuda Sadeh out: 30083d14c5d2SYehuda Sadeh ceph_msg_put(msg); 30093d14c5d2SYehuda Sadeh } 30103d14c5d2SYehuda Sadeh 30113d14c5d2SYehuda Sadeh /* 3012d15f9d69SIlya Dryomov * Lookup and return message for incoming reply. Don't try to do 3013d15f9d69SIlya Dryomov * anything about a larger than preallocated data portion of the 3014d15f9d69SIlya Dryomov * message at the moment - for now, just skip the message. 30153d14c5d2SYehuda Sadeh */ 30163d14c5d2SYehuda Sadeh static struct ceph_msg *get_reply(struct ceph_connection *con, 30173d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 30183d14c5d2SYehuda Sadeh int *skip) 30193d14c5d2SYehuda Sadeh { 30203d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 30213d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = osd->o_osdc; 30223d14c5d2SYehuda Sadeh struct ceph_msg *m; 30233d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 30243f0a4ac5SIlya Dryomov int front_len = le32_to_cpu(hdr->front_len); 30253d14c5d2SYehuda Sadeh int data_len = le32_to_cpu(hdr->data_len); 30263d14c5d2SYehuda Sadeh u64 tid; 30273d14c5d2SYehuda Sadeh 30283d14c5d2SYehuda Sadeh tid = le64_to_cpu(hdr->tid); 30293d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 3030fcd00b68SIlya Dryomov req = lookup_request(&osdc->requests, tid); 30313d14c5d2SYehuda Sadeh if (!req) { 3032cd8140c6SIlya Dryomov dout("%s osd%d tid %llu unknown, skipping\n", __func__, 3033cd8140c6SIlya Dryomov osd->o_osd, tid); 30343d14c5d2SYehuda Sadeh m = NULL; 3035d15f9d69SIlya Dryomov *skip = 1; 30363d14c5d2SYehuda Sadeh goto out; 30373d14c5d2SYehuda Sadeh } 30383d14c5d2SYehuda Sadeh 30398921d114SAlex Elder ceph_msg_revoke_incoming(req->r_reply); 30403d14c5d2SYehuda Sadeh 3041f2be82b0SIlya Dryomov if (front_len > req->r_reply->front_alloc_len) { 3042d15f9d69SIlya Dryomov pr_warn("%s osd%d tid %llu front %d > preallocated %d\n", 3043d15f9d69SIlya Dryomov __func__, osd->o_osd, req->r_tid, front_len, 3044d15f9d69SIlya Dryomov req->r_reply->front_alloc_len); 30453f0a4ac5SIlya Dryomov m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front_len, GFP_NOFS, 30463f0a4ac5SIlya Dryomov false); 30473d14c5d2SYehuda Sadeh if (!m) 30483d14c5d2SYehuda Sadeh goto out; 30493d14c5d2SYehuda Sadeh ceph_msg_put(req->r_reply); 30503d14c5d2SYehuda Sadeh req->r_reply = m; 30513d14c5d2SYehuda Sadeh } 30523d14c5d2SYehuda Sadeh 3053d15f9d69SIlya Dryomov if (data_len > req->r_reply->data_length) { 3054d15f9d69SIlya Dryomov pr_warn("%s osd%d tid %llu data %d > preallocated %zu, skipping\n", 3055d15f9d69SIlya Dryomov __func__, osd->o_osd, req->r_tid, data_len, 3056d15f9d69SIlya Dryomov req->r_reply->data_length); 30573d14c5d2SYehuda Sadeh m = NULL; 3058d15f9d69SIlya Dryomov *skip = 1; 30593d14c5d2SYehuda Sadeh goto out; 30603d14c5d2SYehuda Sadeh } 3061d15f9d69SIlya Dryomov 3062d15f9d69SIlya Dryomov m = ceph_msg_get(req->r_reply); 30633d14c5d2SYehuda Sadeh dout("get_reply tid %lld %p\n", tid, m); 30643d14c5d2SYehuda Sadeh 30653d14c5d2SYehuda Sadeh out: 30663d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 30673d14c5d2SYehuda Sadeh return m; 30683d14c5d2SYehuda Sadeh } 30693d14c5d2SYehuda Sadeh 30703d14c5d2SYehuda Sadeh static struct ceph_msg *alloc_msg(struct ceph_connection *con, 30713d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 30723d14c5d2SYehuda Sadeh int *skip) 30733d14c5d2SYehuda Sadeh { 30743d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 30753d14c5d2SYehuda Sadeh int type = le16_to_cpu(hdr->type); 30763d14c5d2SYehuda Sadeh int front = le32_to_cpu(hdr->front_len); 30773d14c5d2SYehuda Sadeh 30781c20f2d2SAlex Elder *skip = 0; 30793d14c5d2SYehuda Sadeh switch (type) { 30803d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 3081a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 3082b61c2763SSage Weil return ceph_msg_new(type, front, GFP_NOFS, false); 30833d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 30843d14c5d2SYehuda Sadeh return get_reply(con, hdr, skip); 30853d14c5d2SYehuda Sadeh default: 30863d14c5d2SYehuda Sadeh pr_info("alloc_msg unexpected msg type %d from osd%d\n", type, 30873d14c5d2SYehuda Sadeh osd->o_osd); 30883d14c5d2SYehuda Sadeh *skip = 1; 30893d14c5d2SYehuda Sadeh return NULL; 30903d14c5d2SYehuda Sadeh } 30913d14c5d2SYehuda Sadeh } 30923d14c5d2SYehuda Sadeh 30933d14c5d2SYehuda Sadeh /* 30943d14c5d2SYehuda Sadeh * Wrappers to refcount containing ceph_osd struct 30953d14c5d2SYehuda Sadeh */ 30963d14c5d2SYehuda Sadeh static struct ceph_connection *get_osd_con(struct ceph_connection *con) 30973d14c5d2SYehuda Sadeh { 30983d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 30993d14c5d2SYehuda Sadeh if (get_osd(osd)) 31003d14c5d2SYehuda Sadeh return con; 31013d14c5d2SYehuda Sadeh return NULL; 31023d14c5d2SYehuda Sadeh } 31033d14c5d2SYehuda Sadeh 31043d14c5d2SYehuda Sadeh static void put_osd_con(struct ceph_connection *con) 31053d14c5d2SYehuda Sadeh { 31063d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 31073d14c5d2SYehuda Sadeh put_osd(osd); 31083d14c5d2SYehuda Sadeh } 31093d14c5d2SYehuda Sadeh 31103d14c5d2SYehuda Sadeh /* 31113d14c5d2SYehuda Sadeh * authentication 31123d14c5d2SYehuda Sadeh */ 3113a3530df3SAlex Elder /* 3114a3530df3SAlex Elder * Note: returned pointer is the address of a structure that's 3115a3530df3SAlex Elder * managed separately. Caller must *not* attempt to free it. 3116a3530df3SAlex Elder */ 3117a3530df3SAlex Elder static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con, 31188f43fb53SAlex Elder int *proto, int force_new) 31193d14c5d2SYehuda Sadeh { 31203d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 31213d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 31223d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 312374f1869fSAlex Elder struct ceph_auth_handshake *auth = &o->o_auth; 31243d14c5d2SYehuda Sadeh 312574f1869fSAlex Elder if (force_new && auth->authorizer) { 31266c1ea260SIlya Dryomov ceph_auth_destroy_authorizer(auth->authorizer); 312774f1869fSAlex Elder auth->authorizer = NULL; 31283d14c5d2SYehuda Sadeh } 312927859f97SSage Weil if (!auth->authorizer) { 313027859f97SSage Weil int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_OSD, 3131a3530df3SAlex Elder auth); 31323d14c5d2SYehuda Sadeh if (ret) 3133a3530df3SAlex Elder return ERR_PTR(ret); 313427859f97SSage Weil } else { 313527859f97SSage Weil int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_OSD, 31360bed9b5cSSage Weil auth); 31370bed9b5cSSage Weil if (ret) 31380bed9b5cSSage Weil return ERR_PTR(ret); 31393d14c5d2SYehuda Sadeh } 31403d14c5d2SYehuda Sadeh *proto = ac->protocol; 314174f1869fSAlex Elder 3142a3530df3SAlex Elder return auth; 31433d14c5d2SYehuda Sadeh } 31443d14c5d2SYehuda Sadeh 31453d14c5d2SYehuda Sadeh 31463d14c5d2SYehuda Sadeh static int verify_authorizer_reply(struct ceph_connection *con, int len) 31473d14c5d2SYehuda Sadeh { 31483d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 31493d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 31503d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 31513d14c5d2SYehuda Sadeh 315227859f97SSage Weil return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer, len); 31533d14c5d2SYehuda Sadeh } 31543d14c5d2SYehuda Sadeh 31553d14c5d2SYehuda Sadeh static int invalidate_authorizer(struct ceph_connection *con) 31563d14c5d2SYehuda Sadeh { 31573d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 31583d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 31593d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 31603d14c5d2SYehuda Sadeh 316127859f97SSage Weil ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD); 31623d14c5d2SYehuda Sadeh return ceph_monc_validate_auth(&osdc->client->monc); 31633d14c5d2SYehuda Sadeh } 31643d14c5d2SYehuda Sadeh 316579dbd1baSIlya Dryomov static int osd_sign_message(struct ceph_msg *msg) 316633d07337SYan, Zheng { 316779dbd1baSIlya Dryomov struct ceph_osd *o = msg->con->private; 316833d07337SYan, Zheng struct ceph_auth_handshake *auth = &o->o_auth; 316979dbd1baSIlya Dryomov 317033d07337SYan, Zheng return ceph_auth_sign_message(auth, msg); 317133d07337SYan, Zheng } 317233d07337SYan, Zheng 317379dbd1baSIlya Dryomov static int osd_check_message_signature(struct ceph_msg *msg) 317433d07337SYan, Zheng { 317579dbd1baSIlya Dryomov struct ceph_osd *o = msg->con->private; 317633d07337SYan, Zheng struct ceph_auth_handshake *auth = &o->o_auth; 317779dbd1baSIlya Dryomov 317833d07337SYan, Zheng return ceph_auth_check_message_signature(auth, msg); 317933d07337SYan, Zheng } 318033d07337SYan, Zheng 31813d14c5d2SYehuda Sadeh static const struct ceph_connection_operations osd_con_ops = { 31823d14c5d2SYehuda Sadeh .get = get_osd_con, 31833d14c5d2SYehuda Sadeh .put = put_osd_con, 31843d14c5d2SYehuda Sadeh .dispatch = dispatch, 31853d14c5d2SYehuda Sadeh .get_authorizer = get_authorizer, 31863d14c5d2SYehuda Sadeh .verify_authorizer_reply = verify_authorizer_reply, 31873d14c5d2SYehuda Sadeh .invalidate_authorizer = invalidate_authorizer, 31883d14c5d2SYehuda Sadeh .alloc_msg = alloc_msg, 318979dbd1baSIlya Dryomov .sign_message = osd_sign_message, 319079dbd1baSIlya Dryomov .check_message_signature = osd_check_message_signature, 31913d14c5d2SYehuda Sadeh .fault = osd_reset, 31923d14c5d2SYehuda Sadeh }; 3193