13d14c5d2SYehuda Sadeh #include <linux/ceph/ceph_debug.h> 23d14c5d2SYehuda Sadeh 33d14c5d2SYehuda Sadeh #include <linux/module.h> 43d14c5d2SYehuda Sadeh #include <linux/err.h> 53d14c5d2SYehuda Sadeh #include <linux/highmem.h> 63d14c5d2SYehuda Sadeh #include <linux/mm.h> 73d14c5d2SYehuda Sadeh #include <linux/pagemap.h> 83d14c5d2SYehuda Sadeh #include <linux/slab.h> 93d14c5d2SYehuda Sadeh #include <linux/uaccess.h> 103d14c5d2SYehuda Sadeh #ifdef CONFIG_BLOCK 113d14c5d2SYehuda Sadeh #include <linux/bio.h> 123d14c5d2SYehuda Sadeh #endif 133d14c5d2SYehuda Sadeh 143d14c5d2SYehuda Sadeh #include <linux/ceph/libceph.h> 153d14c5d2SYehuda Sadeh #include <linux/ceph/osd_client.h> 163d14c5d2SYehuda Sadeh #include <linux/ceph/messenger.h> 173d14c5d2SYehuda Sadeh #include <linux/ceph/decode.h> 183d14c5d2SYehuda Sadeh #include <linux/ceph/auth.h> 193d14c5d2SYehuda Sadeh #include <linux/ceph/pagelist.h> 203d14c5d2SYehuda Sadeh 213d14c5d2SYehuda Sadeh #define OSD_OP_FRONT_LEN 4096 223d14c5d2SYehuda Sadeh #define OSD_OPREPLY_FRONT_LEN 512 233d14c5d2SYehuda Sadeh 243d14c5d2SYehuda Sadeh static const struct ceph_connection_operations osd_con_ops; 253d14c5d2SYehuda Sadeh 26f9d25199SAlex Elder static void __send_queued(struct ceph_osd_client *osdc); 276f6c7006SSage Weil static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd); 28a40c4f10SYehuda Sadeh static void __register_request(struct ceph_osd_client *osdc, 29a40c4f10SYehuda Sadeh struct ceph_osd_request *req); 30a40c4f10SYehuda Sadeh static void __unregister_linger_request(struct ceph_osd_client *osdc, 31a40c4f10SYehuda Sadeh struct ceph_osd_request *req); 3256e925b6SSage Weil static void __send_request(struct ceph_osd_client *osdc, 33a40c4f10SYehuda Sadeh struct ceph_osd_request *req); 343d14c5d2SYehuda Sadeh 353d14c5d2SYehuda Sadeh /* 363d14c5d2SYehuda Sadeh * Implement client access to distributed object storage cluster. 373d14c5d2SYehuda Sadeh * 383d14c5d2SYehuda Sadeh * All data objects are stored within a cluster/cloud of OSDs, or 393d14c5d2SYehuda Sadeh * "object storage devices." (Note that Ceph OSDs have _nothing_ to 403d14c5d2SYehuda Sadeh * do with the T10 OSD extensions to SCSI.) Ceph OSDs are simply 413d14c5d2SYehuda Sadeh * remote daemons serving up and coordinating consistent and safe 423d14c5d2SYehuda Sadeh * access to storage. 433d14c5d2SYehuda Sadeh * 443d14c5d2SYehuda Sadeh * Cluster membership and the mapping of data objects onto storage devices 453d14c5d2SYehuda Sadeh * are described by the osd map. 463d14c5d2SYehuda Sadeh * 473d14c5d2SYehuda Sadeh * We keep track of pending OSD requests (read, write), resubmit 483d14c5d2SYehuda Sadeh * requests to different OSDs when the cluster topology/data layout 493d14c5d2SYehuda Sadeh * change, or retry the affected requests when the communications 503d14c5d2SYehuda Sadeh * channel with an OSD is reset. 513d14c5d2SYehuda Sadeh */ 523d14c5d2SYehuda Sadeh 533d14c5d2SYehuda Sadeh /* 543d14c5d2SYehuda Sadeh * calculate the mapping of a file extent onto an object, and fill out the 553d14c5d2SYehuda Sadeh * request accordingly. shorten extent as necessary if it crosses an 563d14c5d2SYehuda Sadeh * object boundary. 573d14c5d2SYehuda Sadeh * 583d14c5d2SYehuda Sadeh * fill osd op in request message. 593d14c5d2SYehuda Sadeh */ 60dbe0fc41SAlex Elder static int calc_layout(struct ceph_file_layout *layout, u64 off, u64 *plen, 61a19dadfbSAlex Elder u64 *objnum, u64 *objoff, u64 *objlen) 623d14c5d2SYehuda Sadeh { 6360e56f13SAlex Elder u64 orig_len = *plen; 64d63b77f4SSage Weil int r; 653d14c5d2SYehuda Sadeh 6660e56f13SAlex Elder /* object extent? */ 6775d1c941SAlex Elder r = ceph_calc_file_object_mapping(layout, off, orig_len, objnum, 6875d1c941SAlex Elder objoff, objlen); 69d63b77f4SSage Weil if (r < 0) 70d63b77f4SSage Weil return r; 7175d1c941SAlex Elder if (*objlen < orig_len) { 7275d1c941SAlex Elder *plen = *objlen; 7360e56f13SAlex Elder dout(" skipping last %llu, final file extent %llu~%llu\n", 7460e56f13SAlex Elder orig_len - *plen, off, *plen); 7560e56f13SAlex Elder } 7660e56f13SAlex Elder 7775d1c941SAlex Elder dout("calc_layout objnum=%llx %llu~%llu\n", *objnum, *objoff, *objlen); 783d14c5d2SYehuda Sadeh 793ff5f385SAlex Elder return 0; 803d14c5d2SYehuda Sadeh } 813d14c5d2SYehuda Sadeh 82c54d47bfSAlex Elder static void ceph_osd_data_init(struct ceph_osd_data *osd_data) 83c54d47bfSAlex Elder { 84c54d47bfSAlex Elder memset(osd_data, 0, sizeof (*osd_data)); 85c54d47bfSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_NONE; 86c54d47bfSAlex Elder } 87c54d47bfSAlex Elder 8843bfe5deSAlex Elder void ceph_osd_data_pages_init(struct ceph_osd_data *osd_data, 8943bfe5deSAlex Elder struct page **pages, u64 length, u32 alignment, 9043bfe5deSAlex Elder bool pages_from_pool, bool own_pages) 9143bfe5deSAlex Elder { 9243bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_PAGES; 9343bfe5deSAlex Elder osd_data->pages = pages; 9443bfe5deSAlex Elder osd_data->length = length; 9543bfe5deSAlex Elder osd_data->alignment = alignment; 9643bfe5deSAlex Elder osd_data->pages_from_pool = pages_from_pool; 9743bfe5deSAlex Elder osd_data->own_pages = own_pages; 9843bfe5deSAlex Elder } 9943bfe5deSAlex Elder EXPORT_SYMBOL(ceph_osd_data_pages_init); 10043bfe5deSAlex Elder 10143bfe5deSAlex Elder void ceph_osd_data_pagelist_init(struct ceph_osd_data *osd_data, 10243bfe5deSAlex Elder struct ceph_pagelist *pagelist) 10343bfe5deSAlex Elder { 10443bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_PAGELIST; 10543bfe5deSAlex Elder osd_data->pagelist = pagelist; 10643bfe5deSAlex Elder } 10743bfe5deSAlex Elder EXPORT_SYMBOL(ceph_osd_data_pagelist_init); 10843bfe5deSAlex Elder 10943bfe5deSAlex Elder #ifdef CONFIG_BLOCK 11043bfe5deSAlex Elder void ceph_osd_data_bio_init(struct ceph_osd_data *osd_data, 11143bfe5deSAlex Elder struct bio *bio, size_t bio_length) 11243bfe5deSAlex Elder { 11343bfe5deSAlex Elder osd_data->type = CEPH_OSD_DATA_TYPE_BIO; 11443bfe5deSAlex Elder osd_data->bio = bio; 11543bfe5deSAlex Elder osd_data->bio_length = bio_length; 11643bfe5deSAlex Elder } 11743bfe5deSAlex Elder EXPORT_SYMBOL(ceph_osd_data_bio_init); 11843bfe5deSAlex Elder #endif /* CONFIG_BLOCK */ 11943bfe5deSAlex Elder 12023c08a9cSAlex Elder static u64 ceph_osd_data_length(struct ceph_osd_data *osd_data) 12123c08a9cSAlex Elder { 12223c08a9cSAlex Elder switch (osd_data->type) { 12323c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_NONE: 12423c08a9cSAlex Elder return 0; 12523c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_PAGES: 12623c08a9cSAlex Elder return osd_data->length; 12723c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_PAGELIST: 12823c08a9cSAlex Elder return (u64)osd_data->pagelist->length; 12923c08a9cSAlex Elder #ifdef CONFIG_BLOCK 13023c08a9cSAlex Elder case CEPH_OSD_DATA_TYPE_BIO: 13123c08a9cSAlex Elder return (u64)osd_data->bio_length; 13223c08a9cSAlex Elder #endif /* CONFIG_BLOCK */ 13323c08a9cSAlex Elder default: 13423c08a9cSAlex Elder WARN(true, "unrecognized data type %d\n", (int)osd_data->type); 13523c08a9cSAlex Elder return 0; 13623c08a9cSAlex Elder } 13723c08a9cSAlex Elder } 13823c08a9cSAlex Elder 139c54d47bfSAlex Elder static void ceph_osd_data_release(struct ceph_osd_data *osd_data) 140c54d47bfSAlex Elder { 141c54d47bfSAlex Elder if (osd_data->type != CEPH_OSD_DATA_TYPE_PAGES) 142c54d47bfSAlex Elder return; 143c54d47bfSAlex Elder 144c54d47bfSAlex Elder if (osd_data->own_pages) { 145c54d47bfSAlex Elder int num_pages; 146c54d47bfSAlex Elder 147c54d47bfSAlex Elder num_pages = calc_pages_for((u64)osd_data->alignment, 148c54d47bfSAlex Elder (u64)osd_data->length); 149c54d47bfSAlex Elder ceph_release_page_vector(osd_data->pages, num_pages); 150c54d47bfSAlex Elder } 151c54d47bfSAlex Elder } 152c54d47bfSAlex Elder 1533d14c5d2SYehuda Sadeh /* 1543d14c5d2SYehuda Sadeh * requests 1553d14c5d2SYehuda Sadeh */ 1563d14c5d2SYehuda Sadeh void ceph_osdc_release_request(struct kref *kref) 1573d14c5d2SYehuda Sadeh { 158c54d47bfSAlex Elder struct ceph_osd_request *req; 1593d14c5d2SYehuda Sadeh 160c54d47bfSAlex Elder req = container_of(kref, struct ceph_osd_request, r_kref); 1613d14c5d2SYehuda Sadeh if (req->r_request) 1623d14c5d2SYehuda Sadeh ceph_msg_put(req->r_request); 163ace6d3a9SAlex Elder if (req->r_reply) { 1648921d114SAlex Elder ceph_msg_revoke_incoming(req->r_reply); 165ab8cb34aSAlex Elder ceph_msg_put(req->r_reply); 166ace6d3a9SAlex Elder } 1670fff87ecSAlex Elder 168c54d47bfSAlex Elder ceph_osd_data_release(&req->r_data_in); 169c54d47bfSAlex Elder ceph_osd_data_release(&req->r_data_out); 1700fff87ecSAlex Elder 1713d14c5d2SYehuda Sadeh ceph_put_snap_context(req->r_snapc); 1723d14c5d2SYehuda Sadeh if (req->r_mempool) 1733d14c5d2SYehuda Sadeh mempool_free(req, req->r_osdc->req_mempool); 1743d14c5d2SYehuda Sadeh else 1753d14c5d2SYehuda Sadeh kfree(req); 1763d14c5d2SYehuda Sadeh } 1773d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_release_request); 1783d14c5d2SYehuda Sadeh 1793d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, 1803d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 1811b83bef2SSage Weil unsigned int num_ops, 1823d14c5d2SYehuda Sadeh bool use_mempool, 18354a54007SAlex Elder gfp_t gfp_flags) 1843d14c5d2SYehuda Sadeh { 1853d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 1863d14c5d2SYehuda Sadeh struct ceph_msg *msg; 1871b83bef2SSage Weil size_t msg_size; 1883d14c5d2SYehuda Sadeh 18979528734SAlex Elder BUILD_BUG_ON(CEPH_OSD_MAX_OP > U16_MAX); 19079528734SAlex Elder BUG_ON(num_ops > CEPH_OSD_MAX_OP); 19179528734SAlex Elder 1921b83bef2SSage Weil msg_size = 4 + 4 + 8 + 8 + 4+8; 1931b83bef2SSage Weil msg_size += 2 + 4 + 8 + 4 + 4; /* oloc */ 1941b83bef2SSage Weil msg_size += 1 + 8 + 4 + 4; /* pg_t */ 1951b83bef2SSage Weil msg_size += 4 + MAX_OBJ_NAME_SIZE; 1961b83bef2SSage Weil msg_size += 2 + num_ops*sizeof(struct ceph_osd_op); 1971b83bef2SSage Weil msg_size += 8; /* snapid */ 1981b83bef2SSage Weil msg_size += 8; /* snap_seq */ 1991b83bef2SSage Weil msg_size += 8 * (snapc ? snapc->num_snaps : 0); /* snaps */ 2001b83bef2SSage Weil msg_size += 4; 2013d14c5d2SYehuda Sadeh 2023d14c5d2SYehuda Sadeh if (use_mempool) { 2033d14c5d2SYehuda Sadeh req = mempool_alloc(osdc->req_mempool, gfp_flags); 2043d14c5d2SYehuda Sadeh memset(req, 0, sizeof(*req)); 2053d14c5d2SYehuda Sadeh } else { 2063d14c5d2SYehuda Sadeh req = kzalloc(sizeof(*req), gfp_flags); 2073d14c5d2SYehuda Sadeh } 2083d14c5d2SYehuda Sadeh if (req == NULL) 2093d14c5d2SYehuda Sadeh return NULL; 2103d14c5d2SYehuda Sadeh 2113d14c5d2SYehuda Sadeh req->r_osdc = osdc; 2123d14c5d2SYehuda Sadeh req->r_mempool = use_mempool; 21379528734SAlex Elder req->r_num_ops = num_ops; 2143d14c5d2SYehuda Sadeh 2153d14c5d2SYehuda Sadeh kref_init(&req->r_kref); 2163d14c5d2SYehuda Sadeh init_completion(&req->r_completion); 2173d14c5d2SYehuda Sadeh init_completion(&req->r_safe_completion); 218a978fa20SAlex Elder RB_CLEAR_NODE(&req->r_node); 2193d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&req->r_unsafe_item); 220a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&req->r_linger_item); 221a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&req->r_linger_osd); 222935b639aSSage Weil INIT_LIST_HEAD(&req->r_req_lru_item); 223cd43045cSSage Weil INIT_LIST_HEAD(&req->r_osd_item); 224cd43045cSSage Weil 2253d14c5d2SYehuda Sadeh /* create reply message */ 2263d14c5d2SYehuda Sadeh if (use_mempool) 2273d14c5d2SYehuda Sadeh msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0); 2283d14c5d2SYehuda Sadeh else 2293d14c5d2SYehuda Sadeh msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, 230b61c2763SSage Weil OSD_OPREPLY_FRONT_LEN, gfp_flags, true); 2313d14c5d2SYehuda Sadeh if (!msg) { 2323d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 2333d14c5d2SYehuda Sadeh return NULL; 2343d14c5d2SYehuda Sadeh } 2353d14c5d2SYehuda Sadeh req->r_reply = msg; 2363d14c5d2SYehuda Sadeh 237c54d47bfSAlex Elder ceph_osd_data_init(&req->r_data_in); 238c54d47bfSAlex Elder ceph_osd_data_init(&req->r_data_out); 239d50b409fSSage Weil 2403d14c5d2SYehuda Sadeh /* create request message; allow space for oid */ 2413d14c5d2SYehuda Sadeh if (use_mempool) 2423d14c5d2SYehuda Sadeh msg = ceph_msgpool_get(&osdc->msgpool_op, 0); 2433d14c5d2SYehuda Sadeh else 244b61c2763SSage Weil msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size, gfp_flags, true); 2453d14c5d2SYehuda Sadeh if (!msg) { 2463d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 2473d14c5d2SYehuda Sadeh return NULL; 2483d14c5d2SYehuda Sadeh } 2493d14c5d2SYehuda Sadeh 2503d14c5d2SYehuda Sadeh memset(msg->front.iov_base, 0, msg->front.iov_len); 2513d14c5d2SYehuda Sadeh 2523d14c5d2SYehuda Sadeh req->r_request = msg; 2533d14c5d2SYehuda Sadeh 2543d14c5d2SYehuda Sadeh return req; 2553d14c5d2SYehuda Sadeh } 2563d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_alloc_request); 2573d14c5d2SYehuda Sadeh 258a8dd0a37SAlex Elder static bool osd_req_opcode_valid(u16 opcode) 259a8dd0a37SAlex Elder { 260a8dd0a37SAlex Elder switch (opcode) { 261a8dd0a37SAlex Elder case CEPH_OSD_OP_READ: 262a8dd0a37SAlex Elder case CEPH_OSD_OP_STAT: 263a8dd0a37SAlex Elder case CEPH_OSD_OP_MAPEXT: 264a8dd0a37SAlex Elder case CEPH_OSD_OP_MASKTRUNC: 265a8dd0a37SAlex Elder case CEPH_OSD_OP_SPARSE_READ: 266a8dd0a37SAlex Elder case CEPH_OSD_OP_NOTIFY: 267a8dd0a37SAlex Elder case CEPH_OSD_OP_NOTIFY_ACK: 268a8dd0a37SAlex Elder case CEPH_OSD_OP_ASSERT_VER: 269a8dd0a37SAlex Elder case CEPH_OSD_OP_WRITE: 270a8dd0a37SAlex Elder case CEPH_OSD_OP_WRITEFULL: 271a8dd0a37SAlex Elder case CEPH_OSD_OP_TRUNCATE: 272a8dd0a37SAlex Elder case CEPH_OSD_OP_ZERO: 273a8dd0a37SAlex Elder case CEPH_OSD_OP_DELETE: 274a8dd0a37SAlex Elder case CEPH_OSD_OP_APPEND: 275a8dd0a37SAlex Elder case CEPH_OSD_OP_STARTSYNC: 276a8dd0a37SAlex Elder case CEPH_OSD_OP_SETTRUNC: 277a8dd0a37SAlex Elder case CEPH_OSD_OP_TRIMTRUNC: 278a8dd0a37SAlex Elder case CEPH_OSD_OP_TMAPUP: 279a8dd0a37SAlex Elder case CEPH_OSD_OP_TMAPPUT: 280a8dd0a37SAlex Elder case CEPH_OSD_OP_TMAPGET: 281a8dd0a37SAlex Elder case CEPH_OSD_OP_CREATE: 282a8dd0a37SAlex Elder case CEPH_OSD_OP_ROLLBACK: 283a8dd0a37SAlex Elder case CEPH_OSD_OP_WATCH: 284a8dd0a37SAlex Elder case CEPH_OSD_OP_OMAPGETKEYS: 285a8dd0a37SAlex Elder case CEPH_OSD_OP_OMAPGETVALS: 286a8dd0a37SAlex Elder case CEPH_OSD_OP_OMAPGETHEADER: 287a8dd0a37SAlex Elder case CEPH_OSD_OP_OMAPGETVALSBYKEYS: 288a8dd0a37SAlex Elder case CEPH_OSD_OP_OMAPSETVALS: 289a8dd0a37SAlex Elder case CEPH_OSD_OP_OMAPSETHEADER: 290a8dd0a37SAlex Elder case CEPH_OSD_OP_OMAPCLEAR: 291a8dd0a37SAlex Elder case CEPH_OSD_OP_OMAPRMKEYS: 292a8dd0a37SAlex Elder case CEPH_OSD_OP_OMAP_CMP: 293a8dd0a37SAlex Elder case CEPH_OSD_OP_CLONERANGE: 294a8dd0a37SAlex Elder case CEPH_OSD_OP_ASSERT_SRC_VERSION: 295a8dd0a37SAlex Elder case CEPH_OSD_OP_SRC_CMPXATTR: 296a8dd0a37SAlex Elder case CEPH_OSD_OP_GETXATTR: 297a8dd0a37SAlex Elder case CEPH_OSD_OP_GETXATTRS: 298a8dd0a37SAlex Elder case CEPH_OSD_OP_CMPXATTR: 299a8dd0a37SAlex Elder case CEPH_OSD_OP_SETXATTR: 300a8dd0a37SAlex Elder case CEPH_OSD_OP_SETXATTRS: 301a8dd0a37SAlex Elder case CEPH_OSD_OP_RESETXATTRS: 302a8dd0a37SAlex Elder case CEPH_OSD_OP_RMXATTR: 303a8dd0a37SAlex Elder case CEPH_OSD_OP_PULL: 304a8dd0a37SAlex Elder case CEPH_OSD_OP_PUSH: 305a8dd0a37SAlex Elder case CEPH_OSD_OP_BALANCEREADS: 306a8dd0a37SAlex Elder case CEPH_OSD_OP_UNBALANCEREADS: 307a8dd0a37SAlex Elder case CEPH_OSD_OP_SCRUB: 308a8dd0a37SAlex Elder case CEPH_OSD_OP_SCRUB_RESERVE: 309a8dd0a37SAlex Elder case CEPH_OSD_OP_SCRUB_UNRESERVE: 310a8dd0a37SAlex Elder case CEPH_OSD_OP_SCRUB_STOP: 311a8dd0a37SAlex Elder case CEPH_OSD_OP_SCRUB_MAP: 312a8dd0a37SAlex Elder case CEPH_OSD_OP_WRLOCK: 313a8dd0a37SAlex Elder case CEPH_OSD_OP_WRUNLOCK: 314a8dd0a37SAlex Elder case CEPH_OSD_OP_RDLOCK: 315a8dd0a37SAlex Elder case CEPH_OSD_OP_RDUNLOCK: 316a8dd0a37SAlex Elder case CEPH_OSD_OP_UPLOCK: 317a8dd0a37SAlex Elder case CEPH_OSD_OP_DNLOCK: 318a8dd0a37SAlex Elder case CEPH_OSD_OP_CALL: 319a8dd0a37SAlex Elder case CEPH_OSD_OP_PGLS: 320a8dd0a37SAlex Elder case CEPH_OSD_OP_PGLS_FILTER: 321a8dd0a37SAlex Elder return true; 322a8dd0a37SAlex Elder default: 323a8dd0a37SAlex Elder return false; 324a8dd0a37SAlex Elder } 325a8dd0a37SAlex Elder } 326a8dd0a37SAlex Elder 32733803f33SAlex Elder /* 32833803f33SAlex Elder * This is an osd op init function for opcodes that have no data or 32933803f33SAlex Elder * other information associated with them. It also serves as a 33033803f33SAlex Elder * common init routine for all the other init functions, below. 33133803f33SAlex Elder */ 332c99d2d4aSAlex Elder static struct ceph_osd_req_op * 333c99d2d4aSAlex Elder osd_req_op_init(struct ceph_osd_request *osd_req, unsigned int which, 334c99d2d4aSAlex Elder u16 opcode) 33533803f33SAlex Elder { 336c99d2d4aSAlex Elder struct ceph_osd_req_op *op; 337c99d2d4aSAlex Elder 338c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 33933803f33SAlex Elder BUG_ON(!osd_req_opcode_valid(opcode)); 34033803f33SAlex Elder 341c99d2d4aSAlex Elder op = &osd_req->r_ops[which]; 34233803f33SAlex Elder memset(op, 0, sizeof (*op)); 34333803f33SAlex Elder op->op = opcode; 344c99d2d4aSAlex Elder 345c99d2d4aSAlex Elder return op; 34633803f33SAlex Elder } 34733803f33SAlex Elder 348c99d2d4aSAlex Elder void osd_req_op_extent_init(struct ceph_osd_request *osd_req, 349c99d2d4aSAlex Elder unsigned int which, u16 opcode, 35033803f33SAlex Elder u64 offset, u64 length, 35133803f33SAlex Elder u64 truncate_size, u32 truncate_seq) 35233803f33SAlex Elder { 353c99d2d4aSAlex Elder struct ceph_osd_req_op *op = osd_req_op_init(osd_req, which, opcode); 35433803f33SAlex Elder size_t payload_len = 0; 35533803f33SAlex Elder 35633803f33SAlex Elder BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE); 35733803f33SAlex Elder 35833803f33SAlex Elder op->extent.offset = offset; 35933803f33SAlex Elder op->extent.length = length; 36033803f33SAlex Elder op->extent.truncate_size = truncate_size; 36133803f33SAlex Elder op->extent.truncate_seq = truncate_seq; 36233803f33SAlex Elder if (opcode == CEPH_OSD_OP_WRITE) 36333803f33SAlex Elder payload_len += length; 36433803f33SAlex Elder 36533803f33SAlex Elder op->payload_len = payload_len; 36633803f33SAlex Elder } 36733803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_extent_init); 36833803f33SAlex Elder 369c99d2d4aSAlex Elder void osd_req_op_extent_update(struct ceph_osd_request *osd_req, 370c99d2d4aSAlex Elder unsigned int which, u64 length) 371e5975c7cSAlex Elder { 372c99d2d4aSAlex Elder struct ceph_osd_req_op *op; 373c99d2d4aSAlex Elder u64 previous; 374c99d2d4aSAlex Elder 375c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 376c99d2d4aSAlex Elder op = &osd_req->r_ops[which]; 377c99d2d4aSAlex Elder previous = op->extent.length; 378e5975c7cSAlex Elder 379e5975c7cSAlex Elder if (length == previous) 380e5975c7cSAlex Elder return; /* Nothing to do */ 381e5975c7cSAlex Elder BUG_ON(length > previous); 382e5975c7cSAlex Elder 383e5975c7cSAlex Elder op->extent.length = length; 384e5975c7cSAlex Elder op->payload_len -= previous - length; 385e5975c7cSAlex Elder } 386e5975c7cSAlex Elder EXPORT_SYMBOL(osd_req_op_extent_update); 387e5975c7cSAlex Elder 388c99d2d4aSAlex Elder void osd_req_op_extent_osd_data(struct ceph_osd_request *osd_req, 389c99d2d4aSAlex Elder unsigned int which, 3908c042b0dSAlex Elder struct ceph_osd_data *osd_data) 3918c042b0dSAlex Elder { 392c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 393c99d2d4aSAlex Elder osd_req->r_ops[which].extent.osd_data = osd_data; 3948c042b0dSAlex Elder } 3958c042b0dSAlex Elder EXPORT_SYMBOL(osd_req_op_extent_osd_data); 3968c042b0dSAlex Elder 397c99d2d4aSAlex Elder void osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which, 398c99d2d4aSAlex Elder u16 opcode, const char *class, const char *method, 39933803f33SAlex Elder const void *request_data, size_t request_data_size) 40033803f33SAlex Elder { 401c99d2d4aSAlex Elder struct ceph_osd_req_op *op = osd_req_op_init(osd_req, which, opcode); 40233803f33SAlex Elder size_t payload_len = 0; 40333803f33SAlex Elder size_t size; 40433803f33SAlex Elder 40533803f33SAlex Elder BUG_ON(opcode != CEPH_OSD_OP_CALL); 40633803f33SAlex Elder 40733803f33SAlex Elder op->cls.class_name = class; 40833803f33SAlex Elder size = strlen(class); 40933803f33SAlex Elder BUG_ON(size > (size_t) U8_MAX); 41033803f33SAlex Elder op->cls.class_len = size; 41133803f33SAlex Elder payload_len += size; 41233803f33SAlex Elder 41333803f33SAlex Elder op->cls.method_name = method; 41433803f33SAlex Elder size = strlen(method); 41533803f33SAlex Elder BUG_ON(size > (size_t) U8_MAX); 41633803f33SAlex Elder op->cls.method_len = size; 41733803f33SAlex Elder payload_len += size; 41833803f33SAlex Elder 41954d50649SAlex Elder op->cls.request_data = request_data; 42033803f33SAlex Elder BUG_ON(request_data_size > (size_t) U32_MAX); 42154d50649SAlex Elder op->cls.request_data_len = (u32) request_data_size; 42233803f33SAlex Elder payload_len += request_data_size; 42333803f33SAlex Elder 42433803f33SAlex Elder op->cls.argc = 0; /* currently unused */ 42533803f33SAlex Elder 42633803f33SAlex Elder op->payload_len = payload_len; 42733803f33SAlex Elder } 42833803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_cls_init); 429c99d2d4aSAlex Elder void osd_req_op_cls_response_data(struct ceph_osd_request *osd_req, 430c99d2d4aSAlex Elder unsigned int which, 4318c042b0dSAlex Elder struct ceph_osd_data *response_data) 4328c042b0dSAlex Elder { 433c99d2d4aSAlex Elder BUG_ON(which >= osd_req->r_num_ops); 434c99d2d4aSAlex Elder osd_req->r_ops[which].cls.response_data = response_data; 4358c042b0dSAlex Elder } 4368c042b0dSAlex Elder EXPORT_SYMBOL(osd_req_op_cls_response_data); 4378c042b0dSAlex Elder 438c99d2d4aSAlex Elder void osd_req_op_watch_init(struct ceph_osd_request *osd_req, 439c99d2d4aSAlex Elder unsigned int which, u16 opcode, 44033803f33SAlex Elder u64 cookie, u64 version, int flag) 44133803f33SAlex Elder { 442c99d2d4aSAlex Elder struct ceph_osd_req_op *op = osd_req_op_init(osd_req, which, opcode); 44333803f33SAlex Elder 444c99d2d4aSAlex Elder BUG_ON(opcode != CEPH_OSD_OP_NOTIFY_ACK && opcode != CEPH_OSD_OP_WATCH); 44533803f33SAlex Elder 44633803f33SAlex Elder op->watch.cookie = cookie; 44733803f33SAlex Elder /* op->watch.ver = version; */ /* XXX 3847 */ 44833803f33SAlex Elder op->watch.ver = cpu_to_le64(version); 44933803f33SAlex Elder if (opcode == CEPH_OSD_OP_WATCH && flag) 45033803f33SAlex Elder op->watch.flag = (u8)1; 45133803f33SAlex Elder } 45233803f33SAlex Elder EXPORT_SYMBOL(osd_req_op_watch_init); 45333803f33SAlex Elder 454175face2SAlex Elder static u64 osd_req_encode_op(struct ceph_osd_request *req, 45579528734SAlex Elder struct ceph_osd_op *dst, unsigned int which) 4563d14c5d2SYehuda Sadeh { 45779528734SAlex Elder struct ceph_osd_req_op *src; 45854d50649SAlex Elder u64 request_data_len = 0; 45995e072ebSAlex Elder struct ceph_pagelist *pagelist; 460175face2SAlex Elder 46179528734SAlex Elder BUG_ON(which >= req->r_num_ops); 46279528734SAlex Elder src = &req->r_ops[which]; 463a8dd0a37SAlex Elder if (WARN_ON(!osd_req_opcode_valid(src->op))) { 464a8dd0a37SAlex Elder pr_err("unrecognized osd opcode %d\n", src->op); 465a8dd0a37SAlex Elder 466a8dd0a37SAlex Elder return 0; 467a8dd0a37SAlex Elder } 4683d14c5d2SYehuda Sadeh 469065a68f9SAlex Elder switch (src->op) { 470fbfab539SAlex Elder case CEPH_OSD_OP_STAT: 471fbfab539SAlex Elder break; 4723d14c5d2SYehuda Sadeh case CEPH_OSD_OP_READ: 4733d14c5d2SYehuda Sadeh case CEPH_OSD_OP_WRITE: 474175face2SAlex Elder if (src->op == CEPH_OSD_OP_WRITE) 47554d50649SAlex Elder request_data_len = src->extent.length; 476175face2SAlex Elder dst->extent.offset = cpu_to_le64(src->extent.offset); 477175face2SAlex Elder dst->extent.length = cpu_to_le64(src->extent.length); 4783d14c5d2SYehuda Sadeh dst->extent.truncate_size = 4793d14c5d2SYehuda Sadeh cpu_to_le64(src->extent.truncate_size); 4803d14c5d2SYehuda Sadeh dst->extent.truncate_seq = 4813d14c5d2SYehuda Sadeh cpu_to_le32(src->extent.truncate_seq); 4828c042b0dSAlex Elder if (src->op == CEPH_OSD_OP_WRITE) 4838c042b0dSAlex Elder WARN_ON(src->extent.osd_data != &req->r_data_out); 4848c042b0dSAlex Elder else 4858c042b0dSAlex Elder WARN_ON(src->extent.osd_data != &req->r_data_in); 4863d14c5d2SYehuda Sadeh break; 4873d14c5d2SYehuda Sadeh case CEPH_OSD_OP_CALL: 48895e072ebSAlex Elder pagelist = kmalloc(sizeof (*pagelist), GFP_NOFS); 48995e072ebSAlex Elder BUG_ON(!pagelist); 49095e072ebSAlex Elder ceph_pagelist_init(pagelist); 49195e072ebSAlex Elder 4923d14c5d2SYehuda Sadeh dst->cls.class_len = src->cls.class_len; 4933d14c5d2SYehuda Sadeh dst->cls.method_len = src->cls.method_len; 49454d50649SAlex Elder dst->cls.indata_len = cpu_to_le32(src->cls.request_data_len); 49595e072ebSAlex Elder ceph_pagelist_append(pagelist, src->cls.class_name, 4963d14c5d2SYehuda Sadeh src->cls.class_len); 49795e072ebSAlex Elder ceph_pagelist_append(pagelist, src->cls.method_name, 4983d14c5d2SYehuda Sadeh src->cls.method_len); 49954d50649SAlex Elder ceph_pagelist_append(pagelist, src->cls.request_data, 50054d50649SAlex Elder src->cls.request_data_len); 50143bfe5deSAlex Elder ceph_osd_data_pagelist_init(&req->r_data_out, pagelist); 5028c042b0dSAlex Elder 5038c042b0dSAlex Elder WARN_ON(src->cls.response_data != &req->r_data_in); 50454d50649SAlex Elder request_data_len = pagelist->length; 5053d14c5d2SYehuda Sadeh break; 5063d14c5d2SYehuda Sadeh case CEPH_OSD_OP_STARTSYNC: 5073d14c5d2SYehuda Sadeh break; 508a40c4f10SYehuda Sadeh case CEPH_OSD_OP_NOTIFY_ACK: 509a40c4f10SYehuda Sadeh case CEPH_OSD_OP_WATCH: 510a40c4f10SYehuda Sadeh dst->watch.cookie = cpu_to_le64(src->watch.cookie); 511a40c4f10SYehuda Sadeh dst->watch.ver = cpu_to_le64(src->watch.ver); 512a40c4f10SYehuda Sadeh dst->watch.flag = src->watch.flag; 513a40c4f10SYehuda Sadeh break; 5143d14c5d2SYehuda Sadeh default: 5154c46459cSAlex Elder pr_err("unsupported osd opcode %s\n", 5168f63ca2dSAlex Elder ceph_osd_op_name(src->op)); 5174c46459cSAlex Elder WARN_ON(1); 518a8dd0a37SAlex Elder 519a8dd0a37SAlex Elder return 0; 5203d14c5d2SYehuda Sadeh } 521a8dd0a37SAlex Elder dst->op = cpu_to_le16(src->op); 5223d14c5d2SYehuda Sadeh dst->payload_len = cpu_to_le32(src->payload_len); 523175face2SAlex Elder 52454d50649SAlex Elder return request_data_len; 5253d14c5d2SYehuda Sadeh } 5263d14c5d2SYehuda Sadeh 5273d14c5d2SYehuda Sadeh /* 5283d14c5d2SYehuda Sadeh * build new request AND message 5293d14c5d2SYehuda Sadeh * 5303d14c5d2SYehuda Sadeh */ 53179528734SAlex Elder void ceph_osdc_build_request(struct ceph_osd_request *req, u64 off, 5324d6b250bSAlex Elder struct ceph_snap_context *snapc, u64 snap_id, 533af77f26cSAlex Elder struct timespec *mtime) 5343d14c5d2SYehuda Sadeh { 5353d14c5d2SYehuda Sadeh struct ceph_msg *msg = req->r_request; 5363d14c5d2SYehuda Sadeh void *p; 5371b83bef2SSage Weil size_t msg_size; 5383d14c5d2SYehuda Sadeh int flags = req->r_flags; 539f44246e3SAlex Elder u64 data_len; 54079528734SAlex Elder unsigned int i; 5413d14c5d2SYehuda Sadeh 5421b83bef2SSage Weil req->r_snapid = snap_id; 5433d14c5d2SYehuda Sadeh req->r_snapc = ceph_get_snap_context(snapc); 5443d14c5d2SYehuda Sadeh 5451b83bef2SSage Weil /* encode request */ 5461b83bef2SSage Weil msg->hdr.version = cpu_to_le16(4); 5473d14c5d2SYehuda Sadeh 5481b83bef2SSage Weil p = msg->front.iov_base; 5491b83bef2SSage Weil ceph_encode_32(&p, 1); /* client_inc is always 1 */ 5501b83bef2SSage Weil req->r_request_osdmap_epoch = p; 5511b83bef2SSage Weil p += 4; 5521b83bef2SSage Weil req->r_request_flags = p; 5531b83bef2SSage Weil p += 4; 5541b83bef2SSage Weil if (req->r_flags & CEPH_OSD_FLAG_WRITE) 5551b83bef2SSage Weil ceph_encode_timespec(p, mtime); 5561b83bef2SSage Weil p += sizeof(struct ceph_timespec); 5571b83bef2SSage Weil req->r_request_reassert_version = p; 5581b83bef2SSage Weil p += sizeof(struct ceph_eversion); /* will get filled in */ 5591b83bef2SSage Weil 5601b83bef2SSage Weil /* oloc */ 5611b83bef2SSage Weil ceph_encode_8(&p, 4); 5621b83bef2SSage Weil ceph_encode_8(&p, 4); 5631b83bef2SSage Weil ceph_encode_32(&p, 8 + 4 + 4); 5641b83bef2SSage Weil req->r_request_pool = p; 5651b83bef2SSage Weil p += 8; 5661b83bef2SSage Weil ceph_encode_32(&p, -1); /* preferred */ 5671b83bef2SSage Weil ceph_encode_32(&p, 0); /* key len */ 5681b83bef2SSage Weil 5691b83bef2SSage Weil ceph_encode_8(&p, 1); 5701b83bef2SSage Weil req->r_request_pgid = p; 5711b83bef2SSage Weil p += 8 + 4; 5721b83bef2SSage Weil ceph_encode_32(&p, -1); /* preferred */ 5731b83bef2SSage Weil 5741b83bef2SSage Weil /* oid */ 5751b83bef2SSage Weil ceph_encode_32(&p, req->r_oid_len); 576af77f26cSAlex Elder memcpy(p, req->r_oid, req->r_oid_len); 5771b83bef2SSage Weil dout("oid '%.*s' len %d\n", req->r_oid_len, req->r_oid, req->r_oid_len); 578af77f26cSAlex Elder p += req->r_oid_len; 5793d14c5d2SYehuda Sadeh 580175face2SAlex Elder /* ops--can imply data */ 58179528734SAlex Elder ceph_encode_16(&p, (u16)req->r_num_ops); 582175face2SAlex Elder data_len = 0; 58379528734SAlex Elder for (i = 0; i < req->r_num_ops; i++) { 58479528734SAlex Elder data_len += osd_req_encode_op(req, p, i); 5851b83bef2SSage Weil p += sizeof(struct ceph_osd_op); 5861b83bef2SSage Weil } 5873d14c5d2SYehuda Sadeh 5881b83bef2SSage Weil /* snaps */ 5891b83bef2SSage Weil ceph_encode_64(&p, req->r_snapid); 5901b83bef2SSage Weil ceph_encode_64(&p, req->r_snapc ? req->r_snapc->seq : 0); 5911b83bef2SSage Weil ceph_encode_32(&p, req->r_snapc ? req->r_snapc->num_snaps : 0); 5921b83bef2SSage Weil if (req->r_snapc) { 5933d14c5d2SYehuda Sadeh for (i = 0; i < snapc->num_snaps; i++) { 5941b83bef2SSage Weil ceph_encode_64(&p, req->r_snapc->snaps[i]); 5953d14c5d2SYehuda Sadeh } 5963d14c5d2SYehuda Sadeh } 5973d14c5d2SYehuda Sadeh 5981b83bef2SSage Weil req->r_request_attempts = p; 5991b83bef2SSage Weil p += 4; 6001b83bef2SSage Weil 601175face2SAlex Elder /* data */ 6020baa1bd9SAlex Elder if (flags & CEPH_OSD_FLAG_WRITE) { 6030baa1bd9SAlex Elder u16 data_off; 6040baa1bd9SAlex Elder 6050baa1bd9SAlex Elder /* 6060baa1bd9SAlex Elder * The header "data_off" is a hint to the receiver 6070baa1bd9SAlex Elder * allowing it to align received data into its 6080baa1bd9SAlex Elder * buffers such that there's no need to re-copy 6090baa1bd9SAlex Elder * it before writing it to disk (direct I/O). 6100baa1bd9SAlex Elder */ 6110baa1bd9SAlex Elder data_off = (u16) (off & 0xffff); 6120baa1bd9SAlex Elder req->r_request->hdr.data_off = cpu_to_le16(data_off); 6130baa1bd9SAlex Elder } 614f44246e3SAlex Elder req->r_request->hdr.data_len = cpu_to_le32(data_len); 615c5c6b19dSSage Weil 6163d14c5d2SYehuda Sadeh BUG_ON(p > msg->front.iov_base + msg->front.iov_len); 6173d14c5d2SYehuda Sadeh msg_size = p - msg->front.iov_base; 6183d14c5d2SYehuda Sadeh msg->front.iov_len = msg_size; 6193d14c5d2SYehuda Sadeh msg->hdr.front_len = cpu_to_le32(msg_size); 6201b83bef2SSage Weil 621acead002SAlex Elder dout("build_request msg_size was %d\n", (int)msg_size); 6223d14c5d2SYehuda Sadeh } 6233d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_build_request); 6243d14c5d2SYehuda Sadeh 6253d14c5d2SYehuda Sadeh /* 6263d14c5d2SYehuda Sadeh * build new request AND message, calculate layout, and adjust file 6273d14c5d2SYehuda Sadeh * extent as needed. 6283d14c5d2SYehuda Sadeh * 6293d14c5d2SYehuda Sadeh * if the file was recently truncated, we include information about its 6303d14c5d2SYehuda Sadeh * old and new size so that the object can be updated appropriately. (we 6313d14c5d2SYehuda Sadeh * avoid synchronously deleting truncated objects because it's slow.) 6323d14c5d2SYehuda Sadeh * 6333d14c5d2SYehuda Sadeh * if @do_sync, include a 'startsync' command so that the osd will flush 6343d14c5d2SYehuda Sadeh * data quickly. 6353d14c5d2SYehuda Sadeh */ 6363d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, 6373d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 6383d14c5d2SYehuda Sadeh struct ceph_vino vino, 639acead002SAlex Elder u64 off, u64 *plen, int num_ops, 6403d14c5d2SYehuda Sadeh int opcode, int flags, 6413d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 6423d14c5d2SYehuda Sadeh u32 truncate_seq, 6433d14c5d2SYehuda Sadeh u64 truncate_size, 644153e5167SAlex Elder bool use_mempool) 6453d14c5d2SYehuda Sadeh { 6463d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 6478c042b0dSAlex Elder struct ceph_osd_data *osd_data; 64875d1c941SAlex Elder u64 objnum = 0; 64975d1c941SAlex Elder u64 objoff = 0; 65075d1c941SAlex Elder u64 objlen = 0; 651d18d1e28SAlex Elder u32 object_size; 652d18d1e28SAlex Elder u64 object_base; 6536816282dSSage Weil int r; 6543d14c5d2SYehuda Sadeh 655d18d1e28SAlex Elder BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE); 6563d14c5d2SYehuda Sadeh 657acead002SAlex Elder req = ceph_osdc_alloc_request(osdc, snapc, num_ops, use_mempool, 658ae7ca4a3SAlex Elder GFP_NOFS); 6594ad12621SSage Weil if (!req) 6606816282dSSage Weil return ERR_PTR(-ENOMEM); 6618c042b0dSAlex Elder osd_data = opcode == CEPH_OSD_OP_WRITE ? &req->r_data_out 6628c042b0dSAlex Elder : &req->r_data_in; 66379528734SAlex Elder 664d178a9e7SAlex Elder req->r_flags = flags; 6653d14c5d2SYehuda Sadeh 6663d14c5d2SYehuda Sadeh /* calculate max write size */ 667a19dadfbSAlex Elder r = calc_layout(layout, off, plen, &objnum, &objoff, &objlen); 6683ff5f385SAlex Elder if (r < 0) { 6693ff5f385SAlex Elder ceph_osdc_put_request(req); 6706816282dSSage Weil return ERR_PTR(r); 6713ff5f385SAlex Elder } 672a19dadfbSAlex Elder 673d18d1e28SAlex Elder object_size = le32_to_cpu(layout->fl_object_size); 674d18d1e28SAlex Elder object_base = off - objoff; 675d18d1e28SAlex Elder if (truncate_size <= object_base) { 676d18d1e28SAlex Elder truncate_size = 0; 677d18d1e28SAlex Elder } else { 678d18d1e28SAlex Elder truncate_size -= object_base; 679d18d1e28SAlex Elder if (truncate_size > object_size) 680d18d1e28SAlex Elder truncate_size = object_size; 681d18d1e28SAlex Elder } 682d18d1e28SAlex Elder 683c99d2d4aSAlex Elder osd_req_op_extent_init(req, 0, opcode, objoff, objlen, 684b0270324SAlex Elder truncate_size, truncate_seq); 685c99d2d4aSAlex Elder osd_req_op_extent_osd_data(req, 0, osd_data); 6868c042b0dSAlex Elder 687acead002SAlex Elder /* 688acead002SAlex Elder * A second op in the ops array means the caller wants to 689acead002SAlex Elder * also issue a include a 'startsync' command so that the 690acead002SAlex Elder * osd will flush data quickly. 691acead002SAlex Elder */ 692acead002SAlex Elder if (num_ops > 1) 693c99d2d4aSAlex Elder osd_req_op_init(req, 1, CEPH_OSD_OP_STARTSYNC); 694d18d1e28SAlex Elder 6953d14c5d2SYehuda Sadeh req->r_file_layout = *layout; /* keep a copy */ 6963d14c5d2SYehuda Sadeh 69775d1c941SAlex Elder snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx", 69875d1c941SAlex Elder vino.ino, objnum); 699dbe0fc41SAlex Elder req->r_oid_len = strlen(req->r_oid); 700dbe0fc41SAlex Elder 7013d14c5d2SYehuda Sadeh return req; 7023d14c5d2SYehuda Sadeh } 7033d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_new_request); 7043d14c5d2SYehuda Sadeh 7053d14c5d2SYehuda Sadeh /* 7063d14c5d2SYehuda Sadeh * We keep osd requests in an rbtree, sorted by ->r_tid. 7073d14c5d2SYehuda Sadeh */ 7083d14c5d2SYehuda Sadeh static void __insert_request(struct ceph_osd_client *osdc, 7093d14c5d2SYehuda Sadeh struct ceph_osd_request *new) 7103d14c5d2SYehuda Sadeh { 7113d14c5d2SYehuda Sadeh struct rb_node **p = &osdc->requests.rb_node; 7123d14c5d2SYehuda Sadeh struct rb_node *parent = NULL; 7133d14c5d2SYehuda Sadeh struct ceph_osd_request *req = NULL; 7143d14c5d2SYehuda Sadeh 7153d14c5d2SYehuda Sadeh while (*p) { 7163d14c5d2SYehuda Sadeh parent = *p; 7173d14c5d2SYehuda Sadeh req = rb_entry(parent, struct ceph_osd_request, r_node); 7183d14c5d2SYehuda Sadeh if (new->r_tid < req->r_tid) 7193d14c5d2SYehuda Sadeh p = &(*p)->rb_left; 7203d14c5d2SYehuda Sadeh else if (new->r_tid > req->r_tid) 7213d14c5d2SYehuda Sadeh p = &(*p)->rb_right; 7223d14c5d2SYehuda Sadeh else 7233d14c5d2SYehuda Sadeh BUG(); 7243d14c5d2SYehuda Sadeh } 7253d14c5d2SYehuda Sadeh 7263d14c5d2SYehuda Sadeh rb_link_node(&new->r_node, parent, p); 7273d14c5d2SYehuda Sadeh rb_insert_color(&new->r_node, &osdc->requests); 7283d14c5d2SYehuda Sadeh } 7293d14c5d2SYehuda Sadeh 7303d14c5d2SYehuda Sadeh static struct ceph_osd_request *__lookup_request(struct ceph_osd_client *osdc, 7313d14c5d2SYehuda Sadeh u64 tid) 7323d14c5d2SYehuda Sadeh { 7333d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 7343d14c5d2SYehuda Sadeh struct rb_node *n = osdc->requests.rb_node; 7353d14c5d2SYehuda Sadeh 7363d14c5d2SYehuda Sadeh while (n) { 7373d14c5d2SYehuda Sadeh req = rb_entry(n, struct ceph_osd_request, r_node); 7383d14c5d2SYehuda Sadeh if (tid < req->r_tid) 7393d14c5d2SYehuda Sadeh n = n->rb_left; 7403d14c5d2SYehuda Sadeh else if (tid > req->r_tid) 7413d14c5d2SYehuda Sadeh n = n->rb_right; 7423d14c5d2SYehuda Sadeh else 7433d14c5d2SYehuda Sadeh return req; 7443d14c5d2SYehuda Sadeh } 7453d14c5d2SYehuda Sadeh return NULL; 7463d14c5d2SYehuda Sadeh } 7473d14c5d2SYehuda Sadeh 7483d14c5d2SYehuda Sadeh static struct ceph_osd_request * 7493d14c5d2SYehuda Sadeh __lookup_request_ge(struct ceph_osd_client *osdc, 7503d14c5d2SYehuda Sadeh u64 tid) 7513d14c5d2SYehuda Sadeh { 7523d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 7533d14c5d2SYehuda Sadeh struct rb_node *n = osdc->requests.rb_node; 7543d14c5d2SYehuda Sadeh 7553d14c5d2SYehuda Sadeh while (n) { 7563d14c5d2SYehuda Sadeh req = rb_entry(n, struct ceph_osd_request, r_node); 7573d14c5d2SYehuda Sadeh if (tid < req->r_tid) { 7583d14c5d2SYehuda Sadeh if (!n->rb_left) 7593d14c5d2SYehuda Sadeh return req; 7603d14c5d2SYehuda Sadeh n = n->rb_left; 7613d14c5d2SYehuda Sadeh } else if (tid > req->r_tid) { 7623d14c5d2SYehuda Sadeh n = n->rb_right; 7633d14c5d2SYehuda Sadeh } else { 7643d14c5d2SYehuda Sadeh return req; 7653d14c5d2SYehuda Sadeh } 7663d14c5d2SYehuda Sadeh } 7673d14c5d2SYehuda Sadeh return NULL; 7683d14c5d2SYehuda Sadeh } 7693d14c5d2SYehuda Sadeh 7706f6c7006SSage Weil /* 7716f6c7006SSage Weil * Resubmit requests pending on the given osd. 7726f6c7006SSage Weil */ 7736f6c7006SSage Weil static void __kick_osd_requests(struct ceph_osd_client *osdc, 7746f6c7006SSage Weil struct ceph_osd *osd) 7756f6c7006SSage Weil { 776a40c4f10SYehuda Sadeh struct ceph_osd_request *req, *nreq; 777e02493c0SAlex Elder LIST_HEAD(resend); 7786f6c7006SSage Weil int err; 7796f6c7006SSage Weil 7806f6c7006SSage Weil dout("__kick_osd_requests osd%d\n", osd->o_osd); 7816f6c7006SSage Weil err = __reset_osd(osdc, osd); 782685a7555SAlex Elder if (err) 7836f6c7006SSage Weil return; 784e02493c0SAlex Elder /* 785e02493c0SAlex Elder * Build up a list of requests to resend by traversing the 786e02493c0SAlex Elder * osd's list of requests. Requests for a given object are 787e02493c0SAlex Elder * sent in tid order, and that is also the order they're 788e02493c0SAlex Elder * kept on this list. Therefore all requests that are in 789e02493c0SAlex Elder * flight will be found first, followed by all requests that 790e02493c0SAlex Elder * have not yet been sent. And to resend requests while 791e02493c0SAlex Elder * preserving this order we will want to put any sent 792e02493c0SAlex Elder * requests back on the front of the osd client's unsent 793e02493c0SAlex Elder * list. 794e02493c0SAlex Elder * 795e02493c0SAlex Elder * So we build a separate ordered list of already-sent 796e02493c0SAlex Elder * requests for the affected osd and splice it onto the 797e02493c0SAlex Elder * front of the osd client's unsent list. Once we've seen a 798e02493c0SAlex Elder * request that has not yet been sent we're done. Those 799e02493c0SAlex Elder * requests are already sitting right where they belong. 800e02493c0SAlex Elder */ 8016f6c7006SSage Weil list_for_each_entry(req, &osd->o_requests, r_osd_item) { 802e02493c0SAlex Elder if (!req->r_sent) 803e02493c0SAlex Elder break; 804e02493c0SAlex Elder list_move_tail(&req->r_req_lru_item, &resend); 805e02493c0SAlex Elder dout("requeueing %p tid %llu osd%d\n", req, req->r_tid, 8066f6c7006SSage Weil osd->o_osd); 807a40c4f10SYehuda Sadeh if (!req->r_linger) 8086f6c7006SSage Weil req->r_flags |= CEPH_OSD_FLAG_RETRY; 8096f6c7006SSage Weil } 810e02493c0SAlex Elder list_splice(&resend, &osdc->req_unsent); 811a40c4f10SYehuda Sadeh 812e02493c0SAlex Elder /* 813e02493c0SAlex Elder * Linger requests are re-registered before sending, which 814e02493c0SAlex Elder * sets up a new tid for each. We add them to the unsent 815e02493c0SAlex Elder * list at the end to keep things in tid order. 816e02493c0SAlex Elder */ 817a40c4f10SYehuda Sadeh list_for_each_entry_safe(req, nreq, &osd->o_linger_requests, 818a40c4f10SYehuda Sadeh r_linger_osd) { 81977f38e0eSSage Weil /* 82077f38e0eSSage Weil * reregister request prior to unregistering linger so 82177f38e0eSSage Weil * that r_osd is preserved. 82277f38e0eSSage Weil */ 82377f38e0eSSage Weil BUG_ON(!list_empty(&req->r_req_lru_item)); 824a40c4f10SYehuda Sadeh __register_request(osdc, req); 825e02493c0SAlex Elder list_add_tail(&req->r_req_lru_item, &osdc->req_unsent); 826ad885927SAlex Elder list_add_tail(&req->r_osd_item, &req->r_osd->o_requests); 82777f38e0eSSage Weil __unregister_linger_request(osdc, req); 828a40c4f10SYehuda Sadeh dout("requeued lingering %p tid %llu osd%d\n", req, req->r_tid, 829a40c4f10SYehuda Sadeh osd->o_osd); 830a40c4f10SYehuda Sadeh } 8316f6c7006SSage Weil } 8326f6c7006SSage Weil 8333d14c5d2SYehuda Sadeh /* 8343d14c5d2SYehuda Sadeh * If the osd connection drops, we need to resubmit all requests. 8353d14c5d2SYehuda Sadeh */ 8363d14c5d2SYehuda Sadeh static void osd_reset(struct ceph_connection *con) 8373d14c5d2SYehuda Sadeh { 8383d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 8393d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc; 8403d14c5d2SYehuda Sadeh 8413d14c5d2SYehuda Sadeh if (!osd) 8423d14c5d2SYehuda Sadeh return; 8433d14c5d2SYehuda Sadeh dout("osd_reset osd%d\n", osd->o_osd); 8443d14c5d2SYehuda Sadeh osdc = osd->o_osdc; 8453d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 84683aff95eSSage Weil mutex_lock(&osdc->request_mutex); 84783aff95eSSage Weil __kick_osd_requests(osdc, osd); 848f9d25199SAlex Elder __send_queued(osdc); 84983aff95eSSage Weil mutex_unlock(&osdc->request_mutex); 8503d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 8513d14c5d2SYehuda Sadeh } 8523d14c5d2SYehuda Sadeh 8533d14c5d2SYehuda Sadeh /* 8543d14c5d2SYehuda Sadeh * Track open sessions with osds. 8553d14c5d2SYehuda Sadeh */ 856e10006f8SAlex Elder static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum) 8573d14c5d2SYehuda Sadeh { 8583d14c5d2SYehuda Sadeh struct ceph_osd *osd; 8593d14c5d2SYehuda Sadeh 8603d14c5d2SYehuda Sadeh osd = kzalloc(sizeof(*osd), GFP_NOFS); 8613d14c5d2SYehuda Sadeh if (!osd) 8623d14c5d2SYehuda Sadeh return NULL; 8633d14c5d2SYehuda Sadeh 8643d14c5d2SYehuda Sadeh atomic_set(&osd->o_ref, 1); 8653d14c5d2SYehuda Sadeh osd->o_osdc = osdc; 866e10006f8SAlex Elder osd->o_osd = onum; 867f407731dSAlex Elder RB_CLEAR_NODE(&osd->o_node); 8683d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osd->o_requests); 869a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&osd->o_linger_requests); 8703d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osd->o_osd_lru); 8713d14c5d2SYehuda Sadeh osd->o_incarnation = 1; 8723d14c5d2SYehuda Sadeh 873b7a9e5ddSSage Weil ceph_con_init(&osd->o_con, osd, &osd_con_ops, &osdc->client->msgr); 8743d14c5d2SYehuda Sadeh 8753d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osd->o_keepalive_item); 8763d14c5d2SYehuda Sadeh return osd; 8773d14c5d2SYehuda Sadeh } 8783d14c5d2SYehuda Sadeh 8793d14c5d2SYehuda Sadeh static struct ceph_osd *get_osd(struct ceph_osd *osd) 8803d14c5d2SYehuda Sadeh { 8813d14c5d2SYehuda Sadeh if (atomic_inc_not_zero(&osd->o_ref)) { 8823d14c5d2SYehuda Sadeh dout("get_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref)-1, 8833d14c5d2SYehuda Sadeh atomic_read(&osd->o_ref)); 8843d14c5d2SYehuda Sadeh return osd; 8853d14c5d2SYehuda Sadeh } else { 8863d14c5d2SYehuda Sadeh dout("get_osd %p FAIL\n", osd); 8873d14c5d2SYehuda Sadeh return NULL; 8883d14c5d2SYehuda Sadeh } 8893d14c5d2SYehuda Sadeh } 8903d14c5d2SYehuda Sadeh 8913d14c5d2SYehuda Sadeh static void put_osd(struct ceph_osd *osd) 8923d14c5d2SYehuda Sadeh { 8933d14c5d2SYehuda Sadeh dout("put_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref), 8943d14c5d2SYehuda Sadeh atomic_read(&osd->o_ref) - 1); 895a255651dSAlex Elder if (atomic_dec_and_test(&osd->o_ref) && osd->o_auth.authorizer) { 8963d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osd->o_osdc->client->monc.auth; 8973d14c5d2SYehuda Sadeh 89827859f97SSage Weil ceph_auth_destroy_authorizer(ac, osd->o_auth.authorizer); 8993d14c5d2SYehuda Sadeh kfree(osd); 9003d14c5d2SYehuda Sadeh } 9013d14c5d2SYehuda Sadeh } 9023d14c5d2SYehuda Sadeh 9033d14c5d2SYehuda Sadeh /* 9043d14c5d2SYehuda Sadeh * remove an osd from our map 9053d14c5d2SYehuda Sadeh */ 9063d14c5d2SYehuda Sadeh static void __remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) 9073d14c5d2SYehuda Sadeh { 9083d14c5d2SYehuda Sadeh dout("__remove_osd %p\n", osd); 9093d14c5d2SYehuda Sadeh BUG_ON(!list_empty(&osd->o_requests)); 9103d14c5d2SYehuda Sadeh rb_erase(&osd->o_node, &osdc->osds); 9113d14c5d2SYehuda Sadeh list_del_init(&osd->o_osd_lru); 9123d14c5d2SYehuda Sadeh ceph_con_close(&osd->o_con); 9133d14c5d2SYehuda Sadeh put_osd(osd); 9143d14c5d2SYehuda Sadeh } 9153d14c5d2SYehuda Sadeh 916aca420bcSSage Weil static void remove_all_osds(struct ceph_osd_client *osdc) 917aca420bcSSage Weil { 918048a9d2dSJiaju Zhang dout("%s %p\n", __func__, osdc); 919aca420bcSSage Weil mutex_lock(&osdc->request_mutex); 920aca420bcSSage Weil while (!RB_EMPTY_ROOT(&osdc->osds)) { 921aca420bcSSage Weil struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds), 922aca420bcSSage Weil struct ceph_osd, o_node); 923aca420bcSSage Weil __remove_osd(osdc, osd); 924aca420bcSSage Weil } 925aca420bcSSage Weil mutex_unlock(&osdc->request_mutex); 926aca420bcSSage Weil } 927aca420bcSSage Weil 9283d14c5d2SYehuda Sadeh static void __move_osd_to_lru(struct ceph_osd_client *osdc, 9293d14c5d2SYehuda Sadeh struct ceph_osd *osd) 9303d14c5d2SYehuda Sadeh { 9313d14c5d2SYehuda Sadeh dout("__move_osd_to_lru %p\n", osd); 9323d14c5d2SYehuda Sadeh BUG_ON(!list_empty(&osd->o_osd_lru)); 9333d14c5d2SYehuda Sadeh list_add_tail(&osd->o_osd_lru, &osdc->osd_lru); 9343d14c5d2SYehuda Sadeh osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl * HZ; 9353d14c5d2SYehuda Sadeh } 9363d14c5d2SYehuda Sadeh 9373d14c5d2SYehuda Sadeh static void __remove_osd_from_lru(struct ceph_osd *osd) 9383d14c5d2SYehuda Sadeh { 9393d14c5d2SYehuda Sadeh dout("__remove_osd_from_lru %p\n", osd); 9403d14c5d2SYehuda Sadeh if (!list_empty(&osd->o_osd_lru)) 9413d14c5d2SYehuda Sadeh list_del_init(&osd->o_osd_lru); 9423d14c5d2SYehuda Sadeh } 9433d14c5d2SYehuda Sadeh 944aca420bcSSage Weil static void remove_old_osds(struct ceph_osd_client *osdc) 9453d14c5d2SYehuda Sadeh { 9463d14c5d2SYehuda Sadeh struct ceph_osd *osd, *nosd; 9473d14c5d2SYehuda Sadeh 9483d14c5d2SYehuda Sadeh dout("__remove_old_osds %p\n", osdc); 9493d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 9503d14c5d2SYehuda Sadeh list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { 951aca420bcSSage Weil if (time_before(jiffies, osd->lru_ttl)) 9523d14c5d2SYehuda Sadeh break; 9533d14c5d2SYehuda Sadeh __remove_osd(osdc, osd); 9543d14c5d2SYehuda Sadeh } 9553d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 9563d14c5d2SYehuda Sadeh } 9573d14c5d2SYehuda Sadeh 9583d14c5d2SYehuda Sadeh /* 9593d14c5d2SYehuda Sadeh * reset osd connect 9603d14c5d2SYehuda Sadeh */ 9613d14c5d2SYehuda Sadeh static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) 9623d14c5d2SYehuda Sadeh { 963c3acb181SAlex Elder struct ceph_entity_addr *peer_addr; 9643d14c5d2SYehuda Sadeh 9653d14c5d2SYehuda Sadeh dout("__reset_osd %p osd%d\n", osd, osd->o_osd); 966a40c4f10SYehuda Sadeh if (list_empty(&osd->o_requests) && 967a40c4f10SYehuda Sadeh list_empty(&osd->o_linger_requests)) { 9683d14c5d2SYehuda Sadeh __remove_osd(osdc, osd); 969c3acb181SAlex Elder 970c3acb181SAlex Elder return -ENODEV; 971c3acb181SAlex Elder } 972c3acb181SAlex Elder 973c3acb181SAlex Elder peer_addr = &osdc->osdmap->osd_addr[osd->o_osd]; 974c3acb181SAlex Elder if (!memcmp(peer_addr, &osd->o_con.peer_addr, sizeof (*peer_addr)) && 9753d14c5d2SYehuda Sadeh !ceph_con_opened(&osd->o_con)) { 976c3acb181SAlex Elder struct ceph_osd_request *req; 977c3acb181SAlex Elder 9783d14c5d2SYehuda Sadeh dout(" osd addr hasn't changed and connection never opened," 9793d14c5d2SYehuda Sadeh " letting msgr retry"); 9803d14c5d2SYehuda Sadeh /* touch each r_stamp for handle_timeout()'s benfit */ 9813d14c5d2SYehuda Sadeh list_for_each_entry(req, &osd->o_requests, r_osd_item) 9823d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 983c3acb181SAlex Elder 984c3acb181SAlex Elder return -EAGAIN; 9853d14c5d2SYehuda Sadeh } 986c3acb181SAlex Elder 987c3acb181SAlex Elder ceph_con_close(&osd->o_con); 988c3acb181SAlex Elder ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, peer_addr); 989c3acb181SAlex Elder osd->o_incarnation++; 990c3acb181SAlex Elder 991c3acb181SAlex Elder return 0; 9923d14c5d2SYehuda Sadeh } 9933d14c5d2SYehuda Sadeh 9943d14c5d2SYehuda Sadeh static void __insert_osd(struct ceph_osd_client *osdc, struct ceph_osd *new) 9953d14c5d2SYehuda Sadeh { 9963d14c5d2SYehuda Sadeh struct rb_node **p = &osdc->osds.rb_node; 9973d14c5d2SYehuda Sadeh struct rb_node *parent = NULL; 9983d14c5d2SYehuda Sadeh struct ceph_osd *osd = NULL; 9993d14c5d2SYehuda Sadeh 1000aca420bcSSage Weil dout("__insert_osd %p osd%d\n", new, new->o_osd); 10013d14c5d2SYehuda Sadeh while (*p) { 10023d14c5d2SYehuda Sadeh parent = *p; 10033d14c5d2SYehuda Sadeh osd = rb_entry(parent, struct ceph_osd, o_node); 10043d14c5d2SYehuda Sadeh if (new->o_osd < osd->o_osd) 10053d14c5d2SYehuda Sadeh p = &(*p)->rb_left; 10063d14c5d2SYehuda Sadeh else if (new->o_osd > osd->o_osd) 10073d14c5d2SYehuda Sadeh p = &(*p)->rb_right; 10083d14c5d2SYehuda Sadeh else 10093d14c5d2SYehuda Sadeh BUG(); 10103d14c5d2SYehuda Sadeh } 10113d14c5d2SYehuda Sadeh 10123d14c5d2SYehuda Sadeh rb_link_node(&new->o_node, parent, p); 10133d14c5d2SYehuda Sadeh rb_insert_color(&new->o_node, &osdc->osds); 10143d14c5d2SYehuda Sadeh } 10153d14c5d2SYehuda Sadeh 10163d14c5d2SYehuda Sadeh static struct ceph_osd *__lookup_osd(struct ceph_osd_client *osdc, int o) 10173d14c5d2SYehuda Sadeh { 10183d14c5d2SYehuda Sadeh struct ceph_osd *osd; 10193d14c5d2SYehuda Sadeh struct rb_node *n = osdc->osds.rb_node; 10203d14c5d2SYehuda Sadeh 10213d14c5d2SYehuda Sadeh while (n) { 10223d14c5d2SYehuda Sadeh osd = rb_entry(n, struct ceph_osd, o_node); 10233d14c5d2SYehuda Sadeh if (o < osd->o_osd) 10243d14c5d2SYehuda Sadeh n = n->rb_left; 10253d14c5d2SYehuda Sadeh else if (o > osd->o_osd) 10263d14c5d2SYehuda Sadeh n = n->rb_right; 10273d14c5d2SYehuda Sadeh else 10283d14c5d2SYehuda Sadeh return osd; 10293d14c5d2SYehuda Sadeh } 10303d14c5d2SYehuda Sadeh return NULL; 10313d14c5d2SYehuda Sadeh } 10323d14c5d2SYehuda Sadeh 10333d14c5d2SYehuda Sadeh static void __schedule_osd_timeout(struct ceph_osd_client *osdc) 10343d14c5d2SYehuda Sadeh { 10353d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->timeout_work, 10363d14c5d2SYehuda Sadeh osdc->client->options->osd_keepalive_timeout * HZ); 10373d14c5d2SYehuda Sadeh } 10383d14c5d2SYehuda Sadeh 10393d14c5d2SYehuda Sadeh static void __cancel_osd_timeout(struct ceph_osd_client *osdc) 10403d14c5d2SYehuda Sadeh { 10413d14c5d2SYehuda Sadeh cancel_delayed_work(&osdc->timeout_work); 10423d14c5d2SYehuda Sadeh } 10433d14c5d2SYehuda Sadeh 10443d14c5d2SYehuda Sadeh /* 10453d14c5d2SYehuda Sadeh * Register request, assign tid. If this is the first request, set up 10463d14c5d2SYehuda Sadeh * the timeout event. 10473d14c5d2SYehuda Sadeh */ 1048a40c4f10SYehuda Sadeh static void __register_request(struct ceph_osd_client *osdc, 10493d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 10503d14c5d2SYehuda Sadeh { 10513d14c5d2SYehuda Sadeh req->r_tid = ++osdc->last_tid; 10523d14c5d2SYehuda Sadeh req->r_request->hdr.tid = cpu_to_le64(req->r_tid); 105377f38e0eSSage Weil dout("__register_request %p tid %lld\n", req, req->r_tid); 10543d14c5d2SYehuda Sadeh __insert_request(osdc, req); 10553d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 10563d14c5d2SYehuda Sadeh osdc->num_requests++; 10573d14c5d2SYehuda Sadeh if (osdc->num_requests == 1) { 10583d14c5d2SYehuda Sadeh dout(" first request, scheduling timeout\n"); 10593d14c5d2SYehuda Sadeh __schedule_osd_timeout(osdc); 10603d14c5d2SYehuda Sadeh } 1061a40c4f10SYehuda Sadeh } 1062a40c4f10SYehuda Sadeh 10633d14c5d2SYehuda Sadeh /* 10643d14c5d2SYehuda Sadeh * called under osdc->request_mutex 10653d14c5d2SYehuda Sadeh */ 10663d14c5d2SYehuda Sadeh static void __unregister_request(struct ceph_osd_client *osdc, 10673d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 10683d14c5d2SYehuda Sadeh { 106935f9f8a0SSage Weil if (RB_EMPTY_NODE(&req->r_node)) { 107035f9f8a0SSage Weil dout("__unregister_request %p tid %lld not registered\n", 107135f9f8a0SSage Weil req, req->r_tid); 107235f9f8a0SSage Weil return; 107335f9f8a0SSage Weil } 107435f9f8a0SSage Weil 10753d14c5d2SYehuda Sadeh dout("__unregister_request %p tid %lld\n", req, req->r_tid); 10763d14c5d2SYehuda Sadeh rb_erase(&req->r_node, &osdc->requests); 10773d14c5d2SYehuda Sadeh osdc->num_requests--; 10783d14c5d2SYehuda Sadeh 10793d14c5d2SYehuda Sadeh if (req->r_osd) { 10803d14c5d2SYehuda Sadeh /* make sure the original request isn't in flight. */ 10816740a845SAlex Elder ceph_msg_revoke(req->r_request); 10823d14c5d2SYehuda Sadeh 10833d14c5d2SYehuda Sadeh list_del_init(&req->r_osd_item); 1084a40c4f10SYehuda Sadeh if (list_empty(&req->r_osd->o_requests) && 1085a40c4f10SYehuda Sadeh list_empty(&req->r_osd->o_linger_requests)) { 1086a40c4f10SYehuda Sadeh dout("moving osd to %p lru\n", req->r_osd); 10873d14c5d2SYehuda Sadeh __move_osd_to_lru(osdc, req->r_osd); 1088a40c4f10SYehuda Sadeh } 1089fbdb9190SSage Weil if (list_empty(&req->r_linger_item)) 10903d14c5d2SYehuda Sadeh req->r_osd = NULL; 10913d14c5d2SYehuda Sadeh } 10923d14c5d2SYehuda Sadeh 10937d5f2481SAlex Elder list_del_init(&req->r_req_lru_item); 10943d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 10953d14c5d2SYehuda Sadeh 10963d14c5d2SYehuda Sadeh if (osdc->num_requests == 0) { 10973d14c5d2SYehuda Sadeh dout(" no requests, canceling timeout\n"); 10983d14c5d2SYehuda Sadeh __cancel_osd_timeout(osdc); 10993d14c5d2SYehuda Sadeh } 11003d14c5d2SYehuda Sadeh } 11013d14c5d2SYehuda Sadeh 11023d14c5d2SYehuda Sadeh /* 11033d14c5d2SYehuda Sadeh * Cancel a previously queued request message 11043d14c5d2SYehuda Sadeh */ 11053d14c5d2SYehuda Sadeh static void __cancel_request(struct ceph_osd_request *req) 11063d14c5d2SYehuda Sadeh { 11073d14c5d2SYehuda Sadeh if (req->r_sent && req->r_osd) { 11086740a845SAlex Elder ceph_msg_revoke(req->r_request); 11093d14c5d2SYehuda Sadeh req->r_sent = 0; 11103d14c5d2SYehuda Sadeh } 11113d14c5d2SYehuda Sadeh } 11123d14c5d2SYehuda Sadeh 1113a40c4f10SYehuda Sadeh static void __register_linger_request(struct ceph_osd_client *osdc, 1114a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1115a40c4f10SYehuda Sadeh { 1116a40c4f10SYehuda Sadeh dout("__register_linger_request %p\n", req); 1117a40c4f10SYehuda Sadeh list_add_tail(&req->r_linger_item, &osdc->req_linger); 11186194ea89SSage Weil if (req->r_osd) 11196194ea89SSage Weil list_add_tail(&req->r_linger_osd, 11206194ea89SSage Weil &req->r_osd->o_linger_requests); 1121a40c4f10SYehuda Sadeh } 1122a40c4f10SYehuda Sadeh 1123a40c4f10SYehuda Sadeh static void __unregister_linger_request(struct ceph_osd_client *osdc, 1124a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1125a40c4f10SYehuda Sadeh { 1126a40c4f10SYehuda Sadeh dout("__unregister_linger_request %p\n", req); 1127a40c4f10SYehuda Sadeh list_del_init(&req->r_linger_item); 112861c74035SAlex Elder if (req->r_osd) { 1129a40c4f10SYehuda Sadeh list_del_init(&req->r_linger_osd); 1130a40c4f10SYehuda Sadeh 1131a40c4f10SYehuda Sadeh if (list_empty(&req->r_osd->o_requests) && 1132a40c4f10SYehuda Sadeh list_empty(&req->r_osd->o_linger_requests)) { 1133a40c4f10SYehuda Sadeh dout("moving osd to %p lru\n", req->r_osd); 1134a40c4f10SYehuda Sadeh __move_osd_to_lru(osdc, req->r_osd); 1135a40c4f10SYehuda Sadeh } 1136fbdb9190SSage Weil if (list_empty(&req->r_osd_item)) 1137a40c4f10SYehuda Sadeh req->r_osd = NULL; 1138a40c4f10SYehuda Sadeh } 1139a40c4f10SYehuda Sadeh } 1140a40c4f10SYehuda Sadeh 1141a40c4f10SYehuda Sadeh void ceph_osdc_unregister_linger_request(struct ceph_osd_client *osdc, 1142a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1143a40c4f10SYehuda Sadeh { 1144a40c4f10SYehuda Sadeh mutex_lock(&osdc->request_mutex); 1145a40c4f10SYehuda Sadeh if (req->r_linger) { 1146a40c4f10SYehuda Sadeh __unregister_linger_request(osdc, req); 1147a40c4f10SYehuda Sadeh ceph_osdc_put_request(req); 1148a40c4f10SYehuda Sadeh } 1149a40c4f10SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 1150a40c4f10SYehuda Sadeh } 1151a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_unregister_linger_request); 1152a40c4f10SYehuda Sadeh 1153a40c4f10SYehuda Sadeh void ceph_osdc_set_request_linger(struct ceph_osd_client *osdc, 1154a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 1155a40c4f10SYehuda Sadeh { 1156a40c4f10SYehuda Sadeh if (!req->r_linger) { 1157a40c4f10SYehuda Sadeh dout("set_request_linger %p\n", req); 1158a40c4f10SYehuda Sadeh req->r_linger = 1; 1159a40c4f10SYehuda Sadeh /* 1160a40c4f10SYehuda Sadeh * caller is now responsible for calling 1161a40c4f10SYehuda Sadeh * unregister_linger_request 1162a40c4f10SYehuda Sadeh */ 1163a40c4f10SYehuda Sadeh ceph_osdc_get_request(req); 1164a40c4f10SYehuda Sadeh } 1165a40c4f10SYehuda Sadeh } 1166a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_set_request_linger); 1167a40c4f10SYehuda Sadeh 11683d14c5d2SYehuda Sadeh /* 11693d14c5d2SYehuda Sadeh * Pick an osd (the first 'up' osd in the pg), allocate the osd struct 11703d14c5d2SYehuda Sadeh * (as needed), and set the request r_osd appropriately. If there is 117125985edcSLucas De Marchi * no up osd, set r_osd to NULL. Move the request to the appropriate list 11726f6c7006SSage Weil * (unsent, homeless) or leave on in-flight lru. 11733d14c5d2SYehuda Sadeh * 11743d14c5d2SYehuda Sadeh * Return 0 if unchanged, 1 if changed, or negative on error. 11753d14c5d2SYehuda Sadeh * 11763d14c5d2SYehuda Sadeh * Caller should hold map_sem for read and request_mutex. 11773d14c5d2SYehuda Sadeh */ 11786f6c7006SSage Weil static int __map_request(struct ceph_osd_client *osdc, 117938d6453cSSage Weil struct ceph_osd_request *req, int force_resend) 11803d14c5d2SYehuda Sadeh { 11815b191d99SSage Weil struct ceph_pg pgid; 11823d14c5d2SYehuda Sadeh int acting[CEPH_PG_MAX_SIZE]; 11833d14c5d2SYehuda Sadeh int o = -1, num = 0; 11843d14c5d2SYehuda Sadeh int err; 11853d14c5d2SYehuda Sadeh 11866f6c7006SSage Weil dout("map_request %p tid %lld\n", req, req->r_tid); 118741766f87SAlex Elder err = ceph_calc_ceph_pg(&pgid, req->r_oid, osdc->osdmap, 118841766f87SAlex Elder ceph_file_layout_pg_pool(req->r_file_layout)); 11896f6c7006SSage Weil if (err) { 11906f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_notarget); 11913d14c5d2SYehuda Sadeh return err; 11926f6c7006SSage Weil } 11933d14c5d2SYehuda Sadeh req->r_pgid = pgid; 11943d14c5d2SYehuda Sadeh 11953d14c5d2SYehuda Sadeh err = ceph_calc_pg_acting(osdc->osdmap, pgid, acting); 11963d14c5d2SYehuda Sadeh if (err > 0) { 11973d14c5d2SYehuda Sadeh o = acting[0]; 11983d14c5d2SYehuda Sadeh num = err; 11993d14c5d2SYehuda Sadeh } 12003d14c5d2SYehuda Sadeh 120138d6453cSSage Weil if ((!force_resend && 120238d6453cSSage Weil req->r_osd && req->r_osd->o_osd == o && 12033d14c5d2SYehuda Sadeh req->r_sent >= req->r_osd->o_incarnation && 12043d14c5d2SYehuda Sadeh req->r_num_pg_osds == num && 12053d14c5d2SYehuda Sadeh memcmp(req->r_pg_osds, acting, sizeof(acting[0])*num) == 0) || 12063d14c5d2SYehuda Sadeh (req->r_osd == NULL && o == -1)) 12073d14c5d2SYehuda Sadeh return 0; /* no change */ 12083d14c5d2SYehuda Sadeh 12095b191d99SSage Weil dout("map_request tid %llu pgid %lld.%x osd%d (was osd%d)\n", 12105b191d99SSage Weil req->r_tid, pgid.pool, pgid.seed, o, 12113d14c5d2SYehuda Sadeh req->r_osd ? req->r_osd->o_osd : -1); 12123d14c5d2SYehuda Sadeh 12133d14c5d2SYehuda Sadeh /* record full pg acting set */ 12143d14c5d2SYehuda Sadeh memcpy(req->r_pg_osds, acting, sizeof(acting[0]) * num); 12153d14c5d2SYehuda Sadeh req->r_num_pg_osds = num; 12163d14c5d2SYehuda Sadeh 12173d14c5d2SYehuda Sadeh if (req->r_osd) { 12183d14c5d2SYehuda Sadeh __cancel_request(req); 12193d14c5d2SYehuda Sadeh list_del_init(&req->r_osd_item); 12203d14c5d2SYehuda Sadeh req->r_osd = NULL; 12213d14c5d2SYehuda Sadeh } 12223d14c5d2SYehuda Sadeh 12233d14c5d2SYehuda Sadeh req->r_osd = __lookup_osd(osdc, o); 12243d14c5d2SYehuda Sadeh if (!req->r_osd && o >= 0) { 12253d14c5d2SYehuda Sadeh err = -ENOMEM; 1226e10006f8SAlex Elder req->r_osd = create_osd(osdc, o); 12276f6c7006SSage Weil if (!req->r_osd) { 12286f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_notarget); 12293d14c5d2SYehuda Sadeh goto out; 12306f6c7006SSage Weil } 12313d14c5d2SYehuda Sadeh 12326f6c7006SSage Weil dout("map_request osd %p is osd%d\n", req->r_osd, o); 12333d14c5d2SYehuda Sadeh __insert_osd(osdc, req->r_osd); 12343d14c5d2SYehuda Sadeh 1235b7a9e5ddSSage Weil ceph_con_open(&req->r_osd->o_con, 1236b7a9e5ddSSage Weil CEPH_ENTITY_TYPE_OSD, o, 1237b7a9e5ddSSage Weil &osdc->osdmap->osd_addr[o]); 12383d14c5d2SYehuda Sadeh } 12393d14c5d2SYehuda Sadeh 12403d14c5d2SYehuda Sadeh if (req->r_osd) { 12413d14c5d2SYehuda Sadeh __remove_osd_from_lru(req->r_osd); 1242ad885927SAlex Elder list_add_tail(&req->r_osd_item, &req->r_osd->o_requests); 1243ad885927SAlex Elder list_move_tail(&req->r_req_lru_item, &osdc->req_unsent); 12446f6c7006SSage Weil } else { 1245ad885927SAlex Elder list_move_tail(&req->r_req_lru_item, &osdc->req_notarget); 12463d14c5d2SYehuda Sadeh } 12473d14c5d2SYehuda Sadeh err = 1; /* osd or pg changed */ 12483d14c5d2SYehuda Sadeh 12493d14c5d2SYehuda Sadeh out: 12503d14c5d2SYehuda Sadeh return err; 12513d14c5d2SYehuda Sadeh } 12523d14c5d2SYehuda Sadeh 12533d14c5d2SYehuda Sadeh /* 12543d14c5d2SYehuda Sadeh * caller should hold map_sem (for read) and request_mutex 12553d14c5d2SYehuda Sadeh */ 125656e925b6SSage Weil static void __send_request(struct ceph_osd_client *osdc, 12573d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 12583d14c5d2SYehuda Sadeh { 12591b83bef2SSage Weil void *p; 12603d14c5d2SYehuda Sadeh 12611b83bef2SSage Weil dout("send_request %p tid %llu to osd%d flags %d pg %lld.%x\n", 12621b83bef2SSage Weil req, req->r_tid, req->r_osd->o_osd, req->r_flags, 12631b83bef2SSage Weil (unsigned long long)req->r_pgid.pool, req->r_pgid.seed); 12643d14c5d2SYehuda Sadeh 12651b83bef2SSage Weil /* fill in message content that changes each time we send it */ 12661b83bef2SSage Weil put_unaligned_le32(osdc->osdmap->epoch, req->r_request_osdmap_epoch); 12671b83bef2SSage Weil put_unaligned_le32(req->r_flags, req->r_request_flags); 12681b83bef2SSage Weil put_unaligned_le64(req->r_pgid.pool, req->r_request_pool); 12691b83bef2SSage Weil p = req->r_request_pgid; 12701b83bef2SSage Weil ceph_encode_64(&p, req->r_pgid.pool); 12711b83bef2SSage Weil ceph_encode_32(&p, req->r_pgid.seed); 12721b83bef2SSage Weil put_unaligned_le64(1, req->r_request_attempts); /* FIXME */ 12731b83bef2SSage Weil memcpy(req->r_request_reassert_version, &req->r_reassert_version, 12741b83bef2SSage Weil sizeof(req->r_reassert_version)); 12752169aea6SSage Weil 12763d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 12773d14c5d2SYehuda Sadeh list_move_tail(&req->r_req_lru_item, &osdc->req_lru); 12783d14c5d2SYehuda Sadeh 12793d14c5d2SYehuda Sadeh ceph_msg_get(req->r_request); /* send consumes a ref */ 12803d14c5d2SYehuda Sadeh ceph_con_send(&req->r_osd->o_con, req->r_request); 12813d14c5d2SYehuda Sadeh req->r_sent = req->r_osd->o_incarnation; 12823d14c5d2SYehuda Sadeh } 12833d14c5d2SYehuda Sadeh 12843d14c5d2SYehuda Sadeh /* 12856f6c7006SSage Weil * Send any requests in the queue (req_unsent). 12866f6c7006SSage Weil */ 1287f9d25199SAlex Elder static void __send_queued(struct ceph_osd_client *osdc) 12886f6c7006SSage Weil { 12896f6c7006SSage Weil struct ceph_osd_request *req, *tmp; 12906f6c7006SSage Weil 1291f9d25199SAlex Elder dout("__send_queued\n"); 1292f9d25199SAlex Elder list_for_each_entry_safe(req, tmp, &osdc->req_unsent, r_req_lru_item) 12936f6c7006SSage Weil __send_request(osdc, req); 12946f6c7006SSage Weil } 12956f6c7006SSage Weil 12966f6c7006SSage Weil /* 12973d14c5d2SYehuda Sadeh * Timeout callback, called every N seconds when 1 or more osd 12983d14c5d2SYehuda Sadeh * requests has been active for more than N seconds. When this 12993d14c5d2SYehuda Sadeh * happens, we ping all OSDs with requests who have timed out to 13003d14c5d2SYehuda Sadeh * ensure any communications channel reset is detected. Reset the 13013d14c5d2SYehuda Sadeh * request timeouts another N seconds in the future as we go. 13023d14c5d2SYehuda Sadeh * Reschedule the timeout event another N seconds in future (unless 13033d14c5d2SYehuda Sadeh * there are no open requests). 13043d14c5d2SYehuda Sadeh */ 13053d14c5d2SYehuda Sadeh static void handle_timeout(struct work_struct *work) 13063d14c5d2SYehuda Sadeh { 13073d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 13083d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, timeout_work.work); 130983aff95eSSage Weil struct ceph_osd_request *req; 13103d14c5d2SYehuda Sadeh struct ceph_osd *osd; 13113d14c5d2SYehuda Sadeh unsigned long keepalive = 13123d14c5d2SYehuda Sadeh osdc->client->options->osd_keepalive_timeout * HZ; 13133d14c5d2SYehuda Sadeh struct list_head slow_osds; 13143d14c5d2SYehuda Sadeh dout("timeout\n"); 13153d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 13163d14c5d2SYehuda Sadeh 13173d14c5d2SYehuda Sadeh ceph_monc_request_next_osdmap(&osdc->client->monc); 13183d14c5d2SYehuda Sadeh 13193d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 13203d14c5d2SYehuda Sadeh 13213d14c5d2SYehuda Sadeh /* 13223d14c5d2SYehuda Sadeh * ping osds that are a bit slow. this ensures that if there 13233d14c5d2SYehuda Sadeh * is a break in the TCP connection we will notice, and reopen 13243d14c5d2SYehuda Sadeh * a connection with that osd (from the fault callback). 13253d14c5d2SYehuda Sadeh */ 13263d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&slow_osds); 13273d14c5d2SYehuda Sadeh list_for_each_entry(req, &osdc->req_lru, r_req_lru_item) { 13283d14c5d2SYehuda Sadeh if (time_before(jiffies, req->r_stamp + keepalive)) 13293d14c5d2SYehuda Sadeh break; 13303d14c5d2SYehuda Sadeh 13313d14c5d2SYehuda Sadeh osd = req->r_osd; 13323d14c5d2SYehuda Sadeh BUG_ON(!osd); 13333d14c5d2SYehuda Sadeh dout(" tid %llu is slow, will send keepalive on osd%d\n", 13343d14c5d2SYehuda Sadeh req->r_tid, osd->o_osd); 13353d14c5d2SYehuda Sadeh list_move_tail(&osd->o_keepalive_item, &slow_osds); 13363d14c5d2SYehuda Sadeh } 13373d14c5d2SYehuda Sadeh while (!list_empty(&slow_osds)) { 13383d14c5d2SYehuda Sadeh osd = list_entry(slow_osds.next, struct ceph_osd, 13393d14c5d2SYehuda Sadeh o_keepalive_item); 13403d14c5d2SYehuda Sadeh list_del_init(&osd->o_keepalive_item); 13413d14c5d2SYehuda Sadeh ceph_con_keepalive(&osd->o_con); 13423d14c5d2SYehuda Sadeh } 13433d14c5d2SYehuda Sadeh 13443d14c5d2SYehuda Sadeh __schedule_osd_timeout(osdc); 1345f9d25199SAlex Elder __send_queued(osdc); 13463d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 13473d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 13483d14c5d2SYehuda Sadeh } 13493d14c5d2SYehuda Sadeh 13503d14c5d2SYehuda Sadeh static void handle_osds_timeout(struct work_struct *work) 13513d14c5d2SYehuda Sadeh { 13523d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 13533d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, 13543d14c5d2SYehuda Sadeh osds_timeout_work.work); 13553d14c5d2SYehuda Sadeh unsigned long delay = 13563d14c5d2SYehuda Sadeh osdc->client->options->osd_idle_ttl * HZ >> 2; 13573d14c5d2SYehuda Sadeh 13583d14c5d2SYehuda Sadeh dout("osds timeout\n"); 13593d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 1360aca420bcSSage Weil remove_old_osds(osdc); 13613d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 13623d14c5d2SYehuda Sadeh 13633d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->osds_timeout_work, 13643d14c5d2SYehuda Sadeh round_jiffies_relative(delay)); 13653d14c5d2SYehuda Sadeh } 13663d14c5d2SYehuda Sadeh 136725845472SSage Weil static void complete_request(struct ceph_osd_request *req) 136825845472SSage Weil { 136925845472SSage Weil if (req->r_safe_callback) 137025845472SSage Weil req->r_safe_callback(req, NULL); 137125845472SSage Weil complete_all(&req->r_safe_completion); /* fsync waiter */ 137225845472SSage Weil } 137325845472SSage Weil 13743d14c5d2SYehuda Sadeh /* 13753d14c5d2SYehuda Sadeh * handle osd op reply. either call the callback if it is specified, 13763d14c5d2SYehuda Sadeh * or do the completion to wake up the waiting thread. 13773d14c5d2SYehuda Sadeh */ 13783d14c5d2SYehuda Sadeh static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg, 13793d14c5d2SYehuda Sadeh struct ceph_connection *con) 13803d14c5d2SYehuda Sadeh { 13811b83bef2SSage Weil void *p, *end; 13823d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 13833d14c5d2SYehuda Sadeh u64 tid; 13841b83bef2SSage Weil int object_len; 138579528734SAlex Elder unsigned int numops; 138679528734SAlex Elder int payload_len, flags; 13873d14c5d2SYehuda Sadeh s32 result; 13881b83bef2SSage Weil s32 retry_attempt; 13891b83bef2SSage Weil struct ceph_pg pg; 13901b83bef2SSage Weil int err; 13911b83bef2SSage Weil u32 reassert_epoch; 13921b83bef2SSage Weil u64 reassert_version; 13931b83bef2SSage Weil u32 osdmap_epoch; 13940d5af164SAlex Elder int already_completed; 13959fc6e064SAlex Elder u32 bytes; 139679528734SAlex Elder unsigned int i; 13973d14c5d2SYehuda Sadeh 13983d14c5d2SYehuda Sadeh tid = le64_to_cpu(msg->hdr.tid); 13991b83bef2SSage Weil dout("handle_reply %p tid %llu\n", msg, tid); 14001b83bef2SSage Weil 14011b83bef2SSage Weil p = msg->front.iov_base; 14021b83bef2SSage Weil end = p + msg->front.iov_len; 14031b83bef2SSage Weil 14041b83bef2SSage Weil ceph_decode_need(&p, end, 4, bad); 14051b83bef2SSage Weil object_len = ceph_decode_32(&p); 14061b83bef2SSage Weil ceph_decode_need(&p, end, object_len, bad); 14071b83bef2SSage Weil p += object_len; 14081b83bef2SSage Weil 1409ef4859d6SAlex Elder err = ceph_decode_pgid(&p, end, &pg); 14101b83bef2SSage Weil if (err) 14113d14c5d2SYehuda Sadeh goto bad; 14121b83bef2SSage Weil 14131b83bef2SSage Weil ceph_decode_need(&p, end, 8 + 4 + 4 + 8 + 4, bad); 14141b83bef2SSage Weil flags = ceph_decode_64(&p); 14151b83bef2SSage Weil result = ceph_decode_32(&p); 14161b83bef2SSage Weil reassert_epoch = ceph_decode_32(&p); 14171b83bef2SSage Weil reassert_version = ceph_decode_64(&p); 14181b83bef2SSage Weil osdmap_epoch = ceph_decode_32(&p); 14191b83bef2SSage Weil 14203d14c5d2SYehuda Sadeh /* lookup */ 14213d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 14223d14c5d2SYehuda Sadeh req = __lookup_request(osdc, tid); 14233d14c5d2SYehuda Sadeh if (req == NULL) { 14243d14c5d2SYehuda Sadeh dout("handle_reply tid %llu dne\n", tid); 14258058fd45SAlex Elder goto bad_mutex; 14263d14c5d2SYehuda Sadeh } 14273d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 14281b83bef2SSage Weil 14291b83bef2SSage Weil dout("handle_reply %p tid %llu req %p result %d\n", msg, tid, 14301b83bef2SSage Weil req, result); 14311b83bef2SSage Weil 14321b83bef2SSage Weil ceph_decode_need(&p, end, 4, bad); 14331b83bef2SSage Weil numops = ceph_decode_32(&p); 14341b83bef2SSage Weil if (numops > CEPH_OSD_MAX_OP) 14351b83bef2SSage Weil goto bad_put; 14361b83bef2SSage Weil if (numops != req->r_num_ops) 14371b83bef2SSage Weil goto bad_put; 14381b83bef2SSage Weil payload_len = 0; 14391b83bef2SSage Weil ceph_decode_need(&p, end, numops * sizeof(struct ceph_osd_op), bad); 14401b83bef2SSage Weil for (i = 0; i < numops; i++) { 14411b83bef2SSage Weil struct ceph_osd_op *op = p; 14421b83bef2SSage Weil int len; 14431b83bef2SSage Weil 14441b83bef2SSage Weil len = le32_to_cpu(op->payload_len); 14451b83bef2SSage Weil req->r_reply_op_len[i] = len; 14461b83bef2SSage Weil dout(" op %d has %d bytes\n", i, len); 14471b83bef2SSage Weil payload_len += len; 14481b83bef2SSage Weil p += sizeof(*op); 14491b83bef2SSage Weil } 14509fc6e064SAlex Elder bytes = le32_to_cpu(msg->hdr.data_len); 14519fc6e064SAlex Elder if (payload_len != bytes) { 14521b83bef2SSage Weil pr_warning("sum of op payload lens %d != data_len %d", 14539fc6e064SAlex Elder payload_len, bytes); 14541b83bef2SSage Weil goto bad_put; 14551b83bef2SSage Weil } 14561b83bef2SSage Weil 14571b83bef2SSage Weil ceph_decode_need(&p, end, 4 + numops * 4, bad); 14581b83bef2SSage Weil retry_attempt = ceph_decode_32(&p); 14591b83bef2SSage Weil for (i = 0; i < numops; i++) 14601b83bef2SSage Weil req->r_reply_op_result[i] = ceph_decode_32(&p); 14613d14c5d2SYehuda Sadeh 14623d14c5d2SYehuda Sadeh if (!req->r_got_reply) { 14633d14c5d2SYehuda Sadeh 14641b83bef2SSage Weil req->r_result = result; 14653d14c5d2SYehuda Sadeh dout("handle_reply result %d bytes %d\n", req->r_result, 14663d14c5d2SYehuda Sadeh bytes); 14673d14c5d2SYehuda Sadeh if (req->r_result == 0) 14683d14c5d2SYehuda Sadeh req->r_result = bytes; 14693d14c5d2SYehuda Sadeh 14703d14c5d2SYehuda Sadeh /* in case this is a write and we need to replay, */ 14711b83bef2SSage Weil req->r_reassert_version.epoch = cpu_to_le32(reassert_epoch); 14721b83bef2SSage Weil req->r_reassert_version.version = cpu_to_le64(reassert_version); 14733d14c5d2SYehuda Sadeh 14743d14c5d2SYehuda Sadeh req->r_got_reply = 1; 14753d14c5d2SYehuda Sadeh } else if ((flags & CEPH_OSD_FLAG_ONDISK) == 0) { 14763d14c5d2SYehuda Sadeh dout("handle_reply tid %llu dup ack\n", tid); 14773d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 14783d14c5d2SYehuda Sadeh goto done; 14793d14c5d2SYehuda Sadeh } 14803d14c5d2SYehuda Sadeh 14813d14c5d2SYehuda Sadeh dout("handle_reply tid %llu flags %d\n", tid, flags); 14823d14c5d2SYehuda Sadeh 1483a40c4f10SYehuda Sadeh if (req->r_linger && (flags & CEPH_OSD_FLAG_ONDISK)) 1484a40c4f10SYehuda Sadeh __register_linger_request(osdc, req); 1485a40c4f10SYehuda Sadeh 14863d14c5d2SYehuda Sadeh /* either this is a read, or we got the safe response */ 14873d14c5d2SYehuda Sadeh if (result < 0 || 14883d14c5d2SYehuda Sadeh (flags & CEPH_OSD_FLAG_ONDISK) || 14893d14c5d2SYehuda Sadeh ((flags & CEPH_OSD_FLAG_WRITE) == 0)) 14903d14c5d2SYehuda Sadeh __unregister_request(osdc, req); 14913d14c5d2SYehuda Sadeh 14920d5af164SAlex Elder already_completed = req->r_completed; 14930d5af164SAlex Elder req->r_completed = 1; 14943d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 14950d5af164SAlex Elder if (already_completed) 14960d5af164SAlex Elder goto done; 14973d14c5d2SYehuda Sadeh 14983d14c5d2SYehuda Sadeh if (req->r_callback) 14993d14c5d2SYehuda Sadeh req->r_callback(req, msg); 15003d14c5d2SYehuda Sadeh else 15013d14c5d2SYehuda Sadeh complete_all(&req->r_completion); 15023d14c5d2SYehuda Sadeh 150325845472SSage Weil if (flags & CEPH_OSD_FLAG_ONDISK) 150425845472SSage Weil complete_request(req); 15053d14c5d2SYehuda Sadeh 15063d14c5d2SYehuda Sadeh done: 1507a40c4f10SYehuda Sadeh dout("req=%p req->r_linger=%d\n", req, req->r_linger); 15083d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 15093d14c5d2SYehuda Sadeh return; 15103d14c5d2SYehuda Sadeh 15111b83bef2SSage Weil bad_put: 15121b83bef2SSage Weil ceph_osdc_put_request(req); 15138058fd45SAlex Elder bad_mutex: 15148058fd45SAlex Elder mutex_unlock(&osdc->request_mutex); 15153d14c5d2SYehuda Sadeh bad: 15161b83bef2SSage Weil pr_err("corrupt osd_op_reply got %d %d\n", 15171b83bef2SSage Weil (int)msg->front.iov_len, le32_to_cpu(msg->hdr.front_len)); 15183d14c5d2SYehuda Sadeh ceph_msg_dump(msg); 15193d14c5d2SYehuda Sadeh } 15203d14c5d2SYehuda Sadeh 15216f6c7006SSage Weil static void reset_changed_osds(struct ceph_osd_client *osdc) 15223d14c5d2SYehuda Sadeh { 15233d14c5d2SYehuda Sadeh struct rb_node *p, *n; 15243d14c5d2SYehuda Sadeh 15253d14c5d2SYehuda Sadeh for (p = rb_first(&osdc->osds); p; p = n) { 15266f6c7006SSage Weil struct ceph_osd *osd = rb_entry(p, struct ceph_osd, o_node); 15273d14c5d2SYehuda Sadeh 15283d14c5d2SYehuda Sadeh n = rb_next(p); 15293d14c5d2SYehuda Sadeh if (!ceph_osd_is_up(osdc->osdmap, osd->o_osd) || 15303d14c5d2SYehuda Sadeh memcmp(&osd->o_con.peer_addr, 15313d14c5d2SYehuda Sadeh ceph_osd_addr(osdc->osdmap, 15323d14c5d2SYehuda Sadeh osd->o_osd), 15333d14c5d2SYehuda Sadeh sizeof(struct ceph_entity_addr)) != 0) 15343d14c5d2SYehuda Sadeh __reset_osd(osdc, osd); 15353d14c5d2SYehuda Sadeh } 15363d14c5d2SYehuda Sadeh } 15373d14c5d2SYehuda Sadeh 15383d14c5d2SYehuda Sadeh /* 15396f6c7006SSage Weil * Requeue requests whose mapping to an OSD has changed. If requests map to 15406f6c7006SSage Weil * no osd, request a new map. 15413d14c5d2SYehuda Sadeh * 1542e6d50f67SAlex Elder * Caller should hold map_sem for read. 15433d14c5d2SYehuda Sadeh */ 154438d6453cSSage Weil static void kick_requests(struct ceph_osd_client *osdc, int force_resend) 15453d14c5d2SYehuda Sadeh { 1546a40c4f10SYehuda Sadeh struct ceph_osd_request *req, *nreq; 15476f6c7006SSage Weil struct rb_node *p; 15486f6c7006SSage Weil int needmap = 0; 15496f6c7006SSage Weil int err; 15503d14c5d2SYehuda Sadeh 155138d6453cSSage Weil dout("kick_requests %s\n", force_resend ? " (force resend)" : ""); 15523d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 15536194ea89SSage Weil for (p = rb_first(&osdc->requests); p; ) { 15546f6c7006SSage Weil req = rb_entry(p, struct ceph_osd_request, r_node); 15556194ea89SSage Weil p = rb_next(p); 1556ab60b16dSAlex Elder 1557ab60b16dSAlex Elder /* 1558ab60b16dSAlex Elder * For linger requests that have not yet been 1559ab60b16dSAlex Elder * registered, move them to the linger list; they'll 1560ab60b16dSAlex Elder * be sent to the osd in the loop below. Unregister 1561ab60b16dSAlex Elder * the request before re-registering it as a linger 1562ab60b16dSAlex Elder * request to ensure the __map_request() below 1563ab60b16dSAlex Elder * will decide it needs to be sent. 1564ab60b16dSAlex Elder */ 1565ab60b16dSAlex Elder if (req->r_linger && list_empty(&req->r_linger_item)) { 1566ab60b16dSAlex Elder dout("%p tid %llu restart on osd%d\n", 1567ab60b16dSAlex Elder req, req->r_tid, 1568ab60b16dSAlex Elder req->r_osd ? req->r_osd->o_osd : -1); 1569ab60b16dSAlex Elder __unregister_request(osdc, req); 1570ab60b16dSAlex Elder __register_linger_request(osdc, req); 1571ab60b16dSAlex Elder continue; 1572ab60b16dSAlex Elder } 1573ab60b16dSAlex Elder 157438d6453cSSage Weil err = __map_request(osdc, req, force_resend); 15756f6c7006SSage Weil if (err < 0) 15766f6c7006SSage Weil continue; /* error */ 15776f6c7006SSage Weil if (req->r_osd == NULL) { 15786f6c7006SSage Weil dout("%p tid %llu maps to no osd\n", req, req->r_tid); 15796f6c7006SSage Weil needmap++; /* request a newer map */ 15806f6c7006SSage Weil } else if (err > 0) { 15816194ea89SSage Weil if (!req->r_linger) { 15826194ea89SSage Weil dout("%p tid %llu requeued on osd%d\n", req, 15836194ea89SSage Weil req->r_tid, 15846f6c7006SSage Weil req->r_osd ? req->r_osd->o_osd : -1); 15856f6c7006SSage Weil req->r_flags |= CEPH_OSD_FLAG_RETRY; 15866f6c7006SSage Weil } 15876f6c7006SSage Weil } 15886194ea89SSage Weil } 1589a40c4f10SYehuda Sadeh 1590a40c4f10SYehuda Sadeh list_for_each_entry_safe(req, nreq, &osdc->req_linger, 1591a40c4f10SYehuda Sadeh r_linger_item) { 1592a40c4f10SYehuda Sadeh dout("linger req=%p req->r_osd=%p\n", req, req->r_osd); 1593a40c4f10SYehuda Sadeh 159438d6453cSSage Weil err = __map_request(osdc, req, force_resend); 1595ab60b16dSAlex Elder dout("__map_request returned %d\n", err); 1596a40c4f10SYehuda Sadeh if (err == 0) 1597a40c4f10SYehuda Sadeh continue; /* no change and no osd was specified */ 1598a40c4f10SYehuda Sadeh if (err < 0) 1599a40c4f10SYehuda Sadeh continue; /* hrm! */ 1600a40c4f10SYehuda Sadeh if (req->r_osd == NULL) { 1601a40c4f10SYehuda Sadeh dout("tid %llu maps to no valid osd\n", req->r_tid); 1602a40c4f10SYehuda Sadeh needmap++; /* request a newer map */ 1603a40c4f10SYehuda Sadeh continue; 1604a40c4f10SYehuda Sadeh } 1605a40c4f10SYehuda Sadeh 1606a40c4f10SYehuda Sadeh dout("kicking lingering %p tid %llu osd%d\n", req, req->r_tid, 1607a40c4f10SYehuda Sadeh req->r_osd ? req->r_osd->o_osd : -1); 1608a40c4f10SYehuda Sadeh __register_request(osdc, req); 1609c89ce05eSAlex Elder __unregister_linger_request(osdc, req); 1610a40c4f10SYehuda Sadeh } 16113d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 16123d14c5d2SYehuda Sadeh 16133d14c5d2SYehuda Sadeh if (needmap) { 16143d14c5d2SYehuda Sadeh dout("%d requests for down osds, need new map\n", needmap); 16153d14c5d2SYehuda Sadeh ceph_monc_request_next_osdmap(&osdc->client->monc); 16163d14c5d2SYehuda Sadeh } 1617e6d50f67SAlex Elder reset_changed_osds(osdc); 16183d14c5d2SYehuda Sadeh } 16196f6c7006SSage Weil 16206f6c7006SSage Weil 16213d14c5d2SYehuda Sadeh /* 16223d14c5d2SYehuda Sadeh * Process updated osd map. 16233d14c5d2SYehuda Sadeh * 16243d14c5d2SYehuda Sadeh * The message contains any number of incremental and full maps, normally 16253d14c5d2SYehuda Sadeh * indicating some sort of topology change in the cluster. Kick requests 16263d14c5d2SYehuda Sadeh * off to different OSDs as needed. 16273d14c5d2SYehuda Sadeh */ 16283d14c5d2SYehuda Sadeh void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) 16293d14c5d2SYehuda Sadeh { 16303d14c5d2SYehuda Sadeh void *p, *end, *next; 16313d14c5d2SYehuda Sadeh u32 nr_maps, maplen; 16323d14c5d2SYehuda Sadeh u32 epoch; 16333d14c5d2SYehuda Sadeh struct ceph_osdmap *newmap = NULL, *oldmap; 16343d14c5d2SYehuda Sadeh int err; 16353d14c5d2SYehuda Sadeh struct ceph_fsid fsid; 16363d14c5d2SYehuda Sadeh 16373d14c5d2SYehuda Sadeh dout("handle_map have %u\n", osdc->osdmap ? osdc->osdmap->epoch : 0); 16383d14c5d2SYehuda Sadeh p = msg->front.iov_base; 16393d14c5d2SYehuda Sadeh end = p + msg->front.iov_len; 16403d14c5d2SYehuda Sadeh 16413d14c5d2SYehuda Sadeh /* verify fsid */ 16423d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, sizeof(fsid), bad); 16433d14c5d2SYehuda Sadeh ceph_decode_copy(&p, &fsid, sizeof(fsid)); 16443d14c5d2SYehuda Sadeh if (ceph_check_fsid(osdc->client, &fsid) < 0) 16453d14c5d2SYehuda Sadeh return; 16463d14c5d2SYehuda Sadeh 16473d14c5d2SYehuda Sadeh down_write(&osdc->map_sem); 16483d14c5d2SYehuda Sadeh 16493d14c5d2SYehuda Sadeh /* incremental maps */ 16503d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 16513d14c5d2SYehuda Sadeh dout(" %d inc maps\n", nr_maps); 16523d14c5d2SYehuda Sadeh while (nr_maps > 0) { 16533d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 16543d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 16553d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 16563d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 16573d14c5d2SYehuda Sadeh next = p + maplen; 16583d14c5d2SYehuda Sadeh if (osdc->osdmap && osdc->osdmap->epoch+1 == epoch) { 16593d14c5d2SYehuda Sadeh dout("applying incremental map %u len %d\n", 16603d14c5d2SYehuda Sadeh epoch, maplen); 16613d14c5d2SYehuda Sadeh newmap = osdmap_apply_incremental(&p, next, 16623d14c5d2SYehuda Sadeh osdc->osdmap, 166315d9882cSAlex Elder &osdc->client->msgr); 16643d14c5d2SYehuda Sadeh if (IS_ERR(newmap)) { 16653d14c5d2SYehuda Sadeh err = PTR_ERR(newmap); 16663d14c5d2SYehuda Sadeh goto bad; 16673d14c5d2SYehuda Sadeh } 16683d14c5d2SYehuda Sadeh BUG_ON(!newmap); 16693d14c5d2SYehuda Sadeh if (newmap != osdc->osdmap) { 16703d14c5d2SYehuda Sadeh ceph_osdmap_destroy(osdc->osdmap); 16713d14c5d2SYehuda Sadeh osdc->osdmap = newmap; 16723d14c5d2SYehuda Sadeh } 167338d6453cSSage Weil kick_requests(osdc, 0); 16743d14c5d2SYehuda Sadeh } else { 16753d14c5d2SYehuda Sadeh dout("ignoring incremental map %u len %d\n", 16763d14c5d2SYehuda Sadeh epoch, maplen); 16773d14c5d2SYehuda Sadeh } 16783d14c5d2SYehuda Sadeh p = next; 16793d14c5d2SYehuda Sadeh nr_maps--; 16803d14c5d2SYehuda Sadeh } 16813d14c5d2SYehuda Sadeh if (newmap) 16823d14c5d2SYehuda Sadeh goto done; 16833d14c5d2SYehuda Sadeh 16843d14c5d2SYehuda Sadeh /* full maps */ 16853d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 16863d14c5d2SYehuda Sadeh dout(" %d full maps\n", nr_maps); 16873d14c5d2SYehuda Sadeh while (nr_maps) { 16883d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 16893d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 16903d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 16913d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 16923d14c5d2SYehuda Sadeh if (nr_maps > 1) { 16933d14c5d2SYehuda Sadeh dout("skipping non-latest full map %u len %d\n", 16943d14c5d2SYehuda Sadeh epoch, maplen); 16953d14c5d2SYehuda Sadeh } else if (osdc->osdmap && osdc->osdmap->epoch >= epoch) { 16963d14c5d2SYehuda Sadeh dout("skipping full map %u len %d, " 16973d14c5d2SYehuda Sadeh "older than our %u\n", epoch, maplen, 16983d14c5d2SYehuda Sadeh osdc->osdmap->epoch); 16993d14c5d2SYehuda Sadeh } else { 170038d6453cSSage Weil int skipped_map = 0; 170138d6453cSSage Weil 17023d14c5d2SYehuda Sadeh dout("taking full map %u len %d\n", epoch, maplen); 17033d14c5d2SYehuda Sadeh newmap = osdmap_decode(&p, p+maplen); 17043d14c5d2SYehuda Sadeh if (IS_ERR(newmap)) { 17053d14c5d2SYehuda Sadeh err = PTR_ERR(newmap); 17063d14c5d2SYehuda Sadeh goto bad; 17073d14c5d2SYehuda Sadeh } 17083d14c5d2SYehuda Sadeh BUG_ON(!newmap); 17093d14c5d2SYehuda Sadeh oldmap = osdc->osdmap; 17103d14c5d2SYehuda Sadeh osdc->osdmap = newmap; 171138d6453cSSage Weil if (oldmap) { 171238d6453cSSage Weil if (oldmap->epoch + 1 < newmap->epoch) 171338d6453cSSage Weil skipped_map = 1; 17143d14c5d2SYehuda Sadeh ceph_osdmap_destroy(oldmap); 171538d6453cSSage Weil } 171638d6453cSSage Weil kick_requests(osdc, skipped_map); 17173d14c5d2SYehuda Sadeh } 17183d14c5d2SYehuda Sadeh p += maplen; 17193d14c5d2SYehuda Sadeh nr_maps--; 17203d14c5d2SYehuda Sadeh } 17213d14c5d2SYehuda Sadeh 17223d14c5d2SYehuda Sadeh done: 17233d14c5d2SYehuda Sadeh downgrade_write(&osdc->map_sem); 17243d14c5d2SYehuda Sadeh ceph_monc_got_osdmap(&osdc->client->monc, osdc->osdmap->epoch); 1725cd634fb6SSage Weil 1726cd634fb6SSage Weil /* 1727cd634fb6SSage Weil * subscribe to subsequent osdmap updates if full to ensure 1728cd634fb6SSage Weil * we find out when we are no longer full and stop returning 1729cd634fb6SSage Weil * ENOSPC. 1730cd634fb6SSage Weil */ 1731cd634fb6SSage Weil if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL)) 1732cd634fb6SSage Weil ceph_monc_request_next_osdmap(&osdc->client->monc); 1733cd634fb6SSage Weil 1734f9d25199SAlex Elder mutex_lock(&osdc->request_mutex); 1735f9d25199SAlex Elder __send_queued(osdc); 1736f9d25199SAlex Elder mutex_unlock(&osdc->request_mutex); 17373d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 17383d14c5d2SYehuda Sadeh wake_up_all(&osdc->client->auth_wq); 17393d14c5d2SYehuda Sadeh return; 17403d14c5d2SYehuda Sadeh 17413d14c5d2SYehuda Sadeh bad: 17423d14c5d2SYehuda Sadeh pr_err("osdc handle_map corrupt msg\n"); 17433d14c5d2SYehuda Sadeh ceph_msg_dump(msg); 17443d14c5d2SYehuda Sadeh up_write(&osdc->map_sem); 17453d14c5d2SYehuda Sadeh return; 17463d14c5d2SYehuda Sadeh } 17473d14c5d2SYehuda Sadeh 17483d14c5d2SYehuda Sadeh /* 1749a40c4f10SYehuda Sadeh * watch/notify callback event infrastructure 1750a40c4f10SYehuda Sadeh * 1751a40c4f10SYehuda Sadeh * These callbacks are used both for watch and notify operations. 1752a40c4f10SYehuda Sadeh */ 1753a40c4f10SYehuda Sadeh static void __release_event(struct kref *kref) 1754a40c4f10SYehuda Sadeh { 1755a40c4f10SYehuda Sadeh struct ceph_osd_event *event = 1756a40c4f10SYehuda Sadeh container_of(kref, struct ceph_osd_event, kref); 1757a40c4f10SYehuda Sadeh 1758a40c4f10SYehuda Sadeh dout("__release_event %p\n", event); 1759a40c4f10SYehuda Sadeh kfree(event); 1760a40c4f10SYehuda Sadeh } 1761a40c4f10SYehuda Sadeh 1762a40c4f10SYehuda Sadeh static void get_event(struct ceph_osd_event *event) 1763a40c4f10SYehuda Sadeh { 1764a40c4f10SYehuda Sadeh kref_get(&event->kref); 1765a40c4f10SYehuda Sadeh } 1766a40c4f10SYehuda Sadeh 1767a40c4f10SYehuda Sadeh void ceph_osdc_put_event(struct ceph_osd_event *event) 1768a40c4f10SYehuda Sadeh { 1769a40c4f10SYehuda Sadeh kref_put(&event->kref, __release_event); 1770a40c4f10SYehuda Sadeh } 1771a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_put_event); 1772a40c4f10SYehuda Sadeh 1773a40c4f10SYehuda Sadeh static void __insert_event(struct ceph_osd_client *osdc, 1774a40c4f10SYehuda Sadeh struct ceph_osd_event *new) 1775a40c4f10SYehuda Sadeh { 1776a40c4f10SYehuda Sadeh struct rb_node **p = &osdc->event_tree.rb_node; 1777a40c4f10SYehuda Sadeh struct rb_node *parent = NULL; 1778a40c4f10SYehuda Sadeh struct ceph_osd_event *event = NULL; 1779a40c4f10SYehuda Sadeh 1780a40c4f10SYehuda Sadeh while (*p) { 1781a40c4f10SYehuda Sadeh parent = *p; 1782a40c4f10SYehuda Sadeh event = rb_entry(parent, struct ceph_osd_event, node); 1783a40c4f10SYehuda Sadeh if (new->cookie < event->cookie) 1784a40c4f10SYehuda Sadeh p = &(*p)->rb_left; 1785a40c4f10SYehuda Sadeh else if (new->cookie > event->cookie) 1786a40c4f10SYehuda Sadeh p = &(*p)->rb_right; 1787a40c4f10SYehuda Sadeh else 1788a40c4f10SYehuda Sadeh BUG(); 1789a40c4f10SYehuda Sadeh } 1790a40c4f10SYehuda Sadeh 1791a40c4f10SYehuda Sadeh rb_link_node(&new->node, parent, p); 1792a40c4f10SYehuda Sadeh rb_insert_color(&new->node, &osdc->event_tree); 1793a40c4f10SYehuda Sadeh } 1794a40c4f10SYehuda Sadeh 1795a40c4f10SYehuda Sadeh static struct ceph_osd_event *__find_event(struct ceph_osd_client *osdc, 1796a40c4f10SYehuda Sadeh u64 cookie) 1797a40c4f10SYehuda Sadeh { 1798a40c4f10SYehuda Sadeh struct rb_node **p = &osdc->event_tree.rb_node; 1799a40c4f10SYehuda Sadeh struct rb_node *parent = NULL; 1800a40c4f10SYehuda Sadeh struct ceph_osd_event *event = NULL; 1801a40c4f10SYehuda Sadeh 1802a40c4f10SYehuda Sadeh while (*p) { 1803a40c4f10SYehuda Sadeh parent = *p; 1804a40c4f10SYehuda Sadeh event = rb_entry(parent, struct ceph_osd_event, node); 1805a40c4f10SYehuda Sadeh if (cookie < event->cookie) 1806a40c4f10SYehuda Sadeh p = &(*p)->rb_left; 1807a40c4f10SYehuda Sadeh else if (cookie > event->cookie) 1808a40c4f10SYehuda Sadeh p = &(*p)->rb_right; 1809a40c4f10SYehuda Sadeh else 1810a40c4f10SYehuda Sadeh return event; 1811a40c4f10SYehuda Sadeh } 1812a40c4f10SYehuda Sadeh return NULL; 1813a40c4f10SYehuda Sadeh } 1814a40c4f10SYehuda Sadeh 1815a40c4f10SYehuda Sadeh static void __remove_event(struct ceph_osd_event *event) 1816a40c4f10SYehuda Sadeh { 1817a40c4f10SYehuda Sadeh struct ceph_osd_client *osdc = event->osdc; 1818a40c4f10SYehuda Sadeh 1819a40c4f10SYehuda Sadeh if (!RB_EMPTY_NODE(&event->node)) { 1820a40c4f10SYehuda Sadeh dout("__remove_event removed %p\n", event); 1821a40c4f10SYehuda Sadeh rb_erase(&event->node, &osdc->event_tree); 1822a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 1823a40c4f10SYehuda Sadeh } else { 1824a40c4f10SYehuda Sadeh dout("__remove_event didn't remove %p\n", event); 1825a40c4f10SYehuda Sadeh } 1826a40c4f10SYehuda Sadeh } 1827a40c4f10SYehuda Sadeh 1828a40c4f10SYehuda Sadeh int ceph_osdc_create_event(struct ceph_osd_client *osdc, 1829a40c4f10SYehuda Sadeh void (*event_cb)(u64, u64, u8, void *), 18303c663bbdSAlex Elder void *data, struct ceph_osd_event **pevent) 1831a40c4f10SYehuda Sadeh { 1832a40c4f10SYehuda Sadeh struct ceph_osd_event *event; 1833a40c4f10SYehuda Sadeh 1834a40c4f10SYehuda Sadeh event = kmalloc(sizeof(*event), GFP_NOIO); 1835a40c4f10SYehuda Sadeh if (!event) 1836a40c4f10SYehuda Sadeh return -ENOMEM; 1837a40c4f10SYehuda Sadeh 1838a40c4f10SYehuda Sadeh dout("create_event %p\n", event); 1839a40c4f10SYehuda Sadeh event->cb = event_cb; 18403c663bbdSAlex Elder event->one_shot = 0; 1841a40c4f10SYehuda Sadeh event->data = data; 1842a40c4f10SYehuda Sadeh event->osdc = osdc; 1843a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&event->osd_node); 18443ee5234dSAlex Elder RB_CLEAR_NODE(&event->node); 1845a40c4f10SYehuda Sadeh kref_init(&event->kref); /* one ref for us */ 1846a40c4f10SYehuda Sadeh kref_get(&event->kref); /* one ref for the caller */ 1847a40c4f10SYehuda Sadeh 1848a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 1849a40c4f10SYehuda Sadeh event->cookie = ++osdc->event_count; 1850a40c4f10SYehuda Sadeh __insert_event(osdc, event); 1851a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 1852a40c4f10SYehuda Sadeh 1853a40c4f10SYehuda Sadeh *pevent = event; 1854a40c4f10SYehuda Sadeh return 0; 1855a40c4f10SYehuda Sadeh } 1856a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_create_event); 1857a40c4f10SYehuda Sadeh 1858a40c4f10SYehuda Sadeh void ceph_osdc_cancel_event(struct ceph_osd_event *event) 1859a40c4f10SYehuda Sadeh { 1860a40c4f10SYehuda Sadeh struct ceph_osd_client *osdc = event->osdc; 1861a40c4f10SYehuda Sadeh 1862a40c4f10SYehuda Sadeh dout("cancel_event %p\n", event); 1863a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 1864a40c4f10SYehuda Sadeh __remove_event(event); 1865a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 1866a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); /* caller's */ 1867a40c4f10SYehuda Sadeh } 1868a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_cancel_event); 1869a40c4f10SYehuda Sadeh 1870a40c4f10SYehuda Sadeh 1871a40c4f10SYehuda Sadeh static void do_event_work(struct work_struct *work) 1872a40c4f10SYehuda Sadeh { 1873a40c4f10SYehuda Sadeh struct ceph_osd_event_work *event_work = 1874a40c4f10SYehuda Sadeh container_of(work, struct ceph_osd_event_work, work); 1875a40c4f10SYehuda Sadeh struct ceph_osd_event *event = event_work->event; 1876a40c4f10SYehuda Sadeh u64 ver = event_work->ver; 1877a40c4f10SYehuda Sadeh u64 notify_id = event_work->notify_id; 1878a40c4f10SYehuda Sadeh u8 opcode = event_work->opcode; 1879a40c4f10SYehuda Sadeh 1880a40c4f10SYehuda Sadeh dout("do_event_work completing %p\n", event); 1881a40c4f10SYehuda Sadeh event->cb(ver, notify_id, opcode, event->data); 1882a40c4f10SYehuda Sadeh dout("do_event_work completed %p\n", event); 1883a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 1884a40c4f10SYehuda Sadeh kfree(event_work); 1885a40c4f10SYehuda Sadeh } 1886a40c4f10SYehuda Sadeh 1887a40c4f10SYehuda Sadeh 1888a40c4f10SYehuda Sadeh /* 1889a40c4f10SYehuda Sadeh * Process osd watch notifications 1890a40c4f10SYehuda Sadeh */ 18913c663bbdSAlex Elder static void handle_watch_notify(struct ceph_osd_client *osdc, 18923c663bbdSAlex Elder struct ceph_msg *msg) 1893a40c4f10SYehuda Sadeh { 1894a40c4f10SYehuda Sadeh void *p, *end; 1895a40c4f10SYehuda Sadeh u8 proto_ver; 1896a40c4f10SYehuda Sadeh u64 cookie, ver, notify_id; 1897a40c4f10SYehuda Sadeh u8 opcode; 1898a40c4f10SYehuda Sadeh struct ceph_osd_event *event; 1899a40c4f10SYehuda Sadeh struct ceph_osd_event_work *event_work; 1900a40c4f10SYehuda Sadeh 1901a40c4f10SYehuda Sadeh p = msg->front.iov_base; 1902a40c4f10SYehuda Sadeh end = p + msg->front.iov_len; 1903a40c4f10SYehuda Sadeh 1904a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, proto_ver, bad); 1905a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, opcode, bad); 1906a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, cookie, bad); 1907a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, ver, bad); 1908a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, notify_id, bad); 1909a40c4f10SYehuda Sadeh 1910a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 1911a40c4f10SYehuda Sadeh event = __find_event(osdc, cookie); 1912a40c4f10SYehuda Sadeh if (event) { 19133c663bbdSAlex Elder BUG_ON(event->one_shot); 1914a40c4f10SYehuda Sadeh get_event(event); 1915a40c4f10SYehuda Sadeh } 1916a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 1917a40c4f10SYehuda Sadeh dout("handle_watch_notify cookie %lld ver %lld event %p\n", 1918a40c4f10SYehuda Sadeh cookie, ver, event); 1919a40c4f10SYehuda Sadeh if (event) { 1920a40c4f10SYehuda Sadeh event_work = kmalloc(sizeof(*event_work), GFP_NOIO); 1921a40c4f10SYehuda Sadeh if (!event_work) { 1922a40c4f10SYehuda Sadeh dout("ERROR: could not allocate event_work\n"); 1923a40c4f10SYehuda Sadeh goto done_err; 1924a40c4f10SYehuda Sadeh } 19256b0ae409SMariusz Kozlowski INIT_WORK(&event_work->work, do_event_work); 1926a40c4f10SYehuda Sadeh event_work->event = event; 1927a40c4f10SYehuda Sadeh event_work->ver = ver; 1928a40c4f10SYehuda Sadeh event_work->notify_id = notify_id; 1929a40c4f10SYehuda Sadeh event_work->opcode = opcode; 1930a40c4f10SYehuda Sadeh if (!queue_work(osdc->notify_wq, &event_work->work)) { 1931a40c4f10SYehuda Sadeh dout("WARNING: failed to queue notify event work\n"); 1932a40c4f10SYehuda Sadeh goto done_err; 1933a40c4f10SYehuda Sadeh } 1934a40c4f10SYehuda Sadeh } 1935a40c4f10SYehuda Sadeh 1936a40c4f10SYehuda Sadeh return; 1937a40c4f10SYehuda Sadeh 1938a40c4f10SYehuda Sadeh done_err: 1939a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 1940a40c4f10SYehuda Sadeh return; 1941a40c4f10SYehuda Sadeh 1942a40c4f10SYehuda Sadeh bad: 1943a40c4f10SYehuda Sadeh pr_err("osdc handle_watch_notify corrupt msg\n"); 1944a40c4f10SYehuda Sadeh return; 1945a40c4f10SYehuda Sadeh } 1946a40c4f10SYehuda Sadeh 194770636773SAlex Elder static void ceph_osdc_msg_data_set(struct ceph_msg *msg, 194870636773SAlex Elder struct ceph_osd_data *osd_data) 194970636773SAlex Elder { 195023c08a9cSAlex Elder u64 length = ceph_osd_data_length(osd_data); 195123c08a9cSAlex Elder 195270636773SAlex Elder if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { 195323c08a9cSAlex Elder BUG_ON(length > (u64) SIZE_MAX); 195423c08a9cSAlex Elder if (length) 195570636773SAlex Elder ceph_msg_data_set_pages(msg, osd_data->pages, 195623c08a9cSAlex Elder length, osd_data->alignment); 19579a5e6d09SAlex Elder } else if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGELIST) { 195823c08a9cSAlex Elder BUG_ON(!length); 19599a5e6d09SAlex Elder ceph_msg_data_set_pagelist(msg, osd_data->pagelist); 196070636773SAlex Elder #ifdef CONFIG_BLOCK 196170636773SAlex Elder } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) { 196223c08a9cSAlex Elder ceph_msg_data_set_bio(msg, osd_data->bio, length); 196370636773SAlex Elder #endif 196470636773SAlex Elder } else { 196570636773SAlex Elder BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_NONE); 196670636773SAlex Elder } 196770636773SAlex Elder } 196870636773SAlex Elder 1969a40c4f10SYehuda Sadeh /* 19703d14c5d2SYehuda Sadeh * Register request, send initial attempt. 19713d14c5d2SYehuda Sadeh */ 19723d14c5d2SYehuda Sadeh int ceph_osdc_start_request(struct ceph_osd_client *osdc, 19733d14c5d2SYehuda Sadeh struct ceph_osd_request *req, 19743d14c5d2SYehuda Sadeh bool nofail) 19753d14c5d2SYehuda Sadeh { 19763d14c5d2SYehuda Sadeh int rc = 0; 19773d14c5d2SYehuda Sadeh 197870636773SAlex Elder /* Set up response incoming data and request outgoing data fields */ 19790fff87ecSAlex Elder 198070636773SAlex Elder ceph_osdc_msg_data_set(req->r_reply, &req->r_data_in); 198170636773SAlex Elder ceph_osdc_msg_data_set(req->r_request, &req->r_data_out); 19823d14c5d2SYehuda Sadeh 19833d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 19843d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 1985dc4b870cSAlex Elder __register_request(osdc, req); 198692451b49SAlex Elder WARN_ON(req->r_sent); 198738d6453cSSage Weil rc = __map_request(osdc, req, 0); 19889d6fcb08SSage Weil if (rc < 0) { 19899d6fcb08SSage Weil if (nofail) { 19909d6fcb08SSage Weil dout("osdc_start_request failed map, " 19919d6fcb08SSage Weil " will retry %lld\n", req->r_tid); 19929d6fcb08SSage Weil rc = 0; 19939d6fcb08SSage Weil } 1994234af26fSDan Carpenter goto out_unlock; 19959d6fcb08SSage Weil } 19966f6c7006SSage Weil if (req->r_osd == NULL) { 19976f6c7006SSage Weil dout("send_request %p no up osds in pg\n", req); 19986f6c7006SSage Weil ceph_monc_request_next_osdmap(&osdc->client->monc); 19996f6c7006SSage Weil } else { 20007e2766a1SAlex Elder __send_queued(osdc); 200156e925b6SSage Weil } 20023d14c5d2SYehuda Sadeh rc = 0; 2003234af26fSDan Carpenter out_unlock: 20043d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 20053d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 20063d14c5d2SYehuda Sadeh return rc; 20073d14c5d2SYehuda Sadeh } 20083d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_start_request); 20093d14c5d2SYehuda Sadeh 20103d14c5d2SYehuda Sadeh /* 20113d14c5d2SYehuda Sadeh * wait for a request to complete 20123d14c5d2SYehuda Sadeh */ 20133d14c5d2SYehuda Sadeh int ceph_osdc_wait_request(struct ceph_osd_client *osdc, 20143d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 20153d14c5d2SYehuda Sadeh { 20163d14c5d2SYehuda Sadeh int rc; 20173d14c5d2SYehuda Sadeh 20183d14c5d2SYehuda Sadeh rc = wait_for_completion_interruptible(&req->r_completion); 20193d14c5d2SYehuda Sadeh if (rc < 0) { 20203d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 20213d14c5d2SYehuda Sadeh __cancel_request(req); 20223d14c5d2SYehuda Sadeh __unregister_request(osdc, req); 20233d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 202425845472SSage Weil complete_request(req); 20253d14c5d2SYehuda Sadeh dout("wait_request tid %llu canceled/timed out\n", req->r_tid); 20263d14c5d2SYehuda Sadeh return rc; 20273d14c5d2SYehuda Sadeh } 20283d14c5d2SYehuda Sadeh 20293d14c5d2SYehuda Sadeh dout("wait_request tid %llu result %d\n", req->r_tid, req->r_result); 20303d14c5d2SYehuda Sadeh return req->r_result; 20313d14c5d2SYehuda Sadeh } 20323d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_wait_request); 20333d14c5d2SYehuda Sadeh 20343d14c5d2SYehuda Sadeh /* 20353d14c5d2SYehuda Sadeh * sync - wait for all in-flight requests to flush. avoid starvation. 20363d14c5d2SYehuda Sadeh */ 20373d14c5d2SYehuda Sadeh void ceph_osdc_sync(struct ceph_osd_client *osdc) 20383d14c5d2SYehuda Sadeh { 20393d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 20403d14c5d2SYehuda Sadeh u64 last_tid, next_tid = 0; 20413d14c5d2SYehuda Sadeh 20423d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 20433d14c5d2SYehuda Sadeh last_tid = osdc->last_tid; 20443d14c5d2SYehuda Sadeh while (1) { 20453d14c5d2SYehuda Sadeh req = __lookup_request_ge(osdc, next_tid); 20463d14c5d2SYehuda Sadeh if (!req) 20473d14c5d2SYehuda Sadeh break; 20483d14c5d2SYehuda Sadeh if (req->r_tid > last_tid) 20493d14c5d2SYehuda Sadeh break; 20503d14c5d2SYehuda Sadeh 20513d14c5d2SYehuda Sadeh next_tid = req->r_tid + 1; 20523d14c5d2SYehuda Sadeh if ((req->r_flags & CEPH_OSD_FLAG_WRITE) == 0) 20533d14c5d2SYehuda Sadeh continue; 20543d14c5d2SYehuda Sadeh 20553d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 20563d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 20573d14c5d2SYehuda Sadeh dout("sync waiting on tid %llu (last is %llu)\n", 20583d14c5d2SYehuda Sadeh req->r_tid, last_tid); 20593d14c5d2SYehuda Sadeh wait_for_completion(&req->r_safe_completion); 20603d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 20613d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 20623d14c5d2SYehuda Sadeh } 20633d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 20643d14c5d2SYehuda Sadeh dout("sync done (thru tid %llu)\n", last_tid); 20653d14c5d2SYehuda Sadeh } 20663d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_sync); 20673d14c5d2SYehuda Sadeh 20683d14c5d2SYehuda Sadeh /* 20693d14c5d2SYehuda Sadeh * init, shutdown 20703d14c5d2SYehuda Sadeh */ 20713d14c5d2SYehuda Sadeh int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) 20723d14c5d2SYehuda Sadeh { 20733d14c5d2SYehuda Sadeh int err; 20743d14c5d2SYehuda Sadeh 20753d14c5d2SYehuda Sadeh dout("init\n"); 20763d14c5d2SYehuda Sadeh osdc->client = client; 20773d14c5d2SYehuda Sadeh osdc->osdmap = NULL; 20783d14c5d2SYehuda Sadeh init_rwsem(&osdc->map_sem); 20793d14c5d2SYehuda Sadeh init_completion(&osdc->map_waiters); 20803d14c5d2SYehuda Sadeh osdc->last_requested_map = 0; 20813d14c5d2SYehuda Sadeh mutex_init(&osdc->request_mutex); 20823d14c5d2SYehuda Sadeh osdc->last_tid = 0; 20833d14c5d2SYehuda Sadeh osdc->osds = RB_ROOT; 20843d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osdc->osd_lru); 20853d14c5d2SYehuda Sadeh osdc->requests = RB_ROOT; 20863d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osdc->req_lru); 20876f6c7006SSage Weil INIT_LIST_HEAD(&osdc->req_unsent); 20886f6c7006SSage Weil INIT_LIST_HEAD(&osdc->req_notarget); 2089a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&osdc->req_linger); 20903d14c5d2SYehuda Sadeh osdc->num_requests = 0; 20913d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->timeout_work, handle_timeout); 20923d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->osds_timeout_work, handle_osds_timeout); 2093a40c4f10SYehuda Sadeh spin_lock_init(&osdc->event_lock); 2094a40c4f10SYehuda Sadeh osdc->event_tree = RB_ROOT; 2095a40c4f10SYehuda Sadeh osdc->event_count = 0; 20963d14c5d2SYehuda Sadeh 20973d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->osds_timeout_work, 20983d14c5d2SYehuda Sadeh round_jiffies_relative(osdc->client->options->osd_idle_ttl * HZ)); 20993d14c5d2SYehuda Sadeh 21003d14c5d2SYehuda Sadeh err = -ENOMEM; 21013d14c5d2SYehuda Sadeh osdc->req_mempool = mempool_create_kmalloc_pool(10, 21023d14c5d2SYehuda Sadeh sizeof(struct ceph_osd_request)); 21033d14c5d2SYehuda Sadeh if (!osdc->req_mempool) 21043d14c5d2SYehuda Sadeh goto out; 21053d14c5d2SYehuda Sadeh 2106d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op, CEPH_MSG_OSD_OP, 2107d50b409fSSage Weil OSD_OP_FRONT_LEN, 10, true, 21083d14c5d2SYehuda Sadeh "osd_op"); 21093d14c5d2SYehuda Sadeh if (err < 0) 21103d14c5d2SYehuda Sadeh goto out_mempool; 2111d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op_reply, CEPH_MSG_OSD_OPREPLY, 21123d14c5d2SYehuda Sadeh OSD_OPREPLY_FRONT_LEN, 10, true, 21133d14c5d2SYehuda Sadeh "osd_op_reply"); 21143d14c5d2SYehuda Sadeh if (err < 0) 21153d14c5d2SYehuda Sadeh goto out_msgpool; 2116a40c4f10SYehuda Sadeh 2117a40c4f10SYehuda Sadeh osdc->notify_wq = create_singlethread_workqueue("ceph-watch-notify"); 2118a40c4f10SYehuda Sadeh if (IS_ERR(osdc->notify_wq)) { 2119a40c4f10SYehuda Sadeh err = PTR_ERR(osdc->notify_wq); 2120a40c4f10SYehuda Sadeh osdc->notify_wq = NULL; 2121a40c4f10SYehuda Sadeh goto out_msgpool; 2122a40c4f10SYehuda Sadeh } 21233d14c5d2SYehuda Sadeh return 0; 21243d14c5d2SYehuda Sadeh 21253d14c5d2SYehuda Sadeh out_msgpool: 21263d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 21273d14c5d2SYehuda Sadeh out_mempool: 21283d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 21293d14c5d2SYehuda Sadeh out: 21303d14c5d2SYehuda Sadeh return err; 21313d14c5d2SYehuda Sadeh } 21323d14c5d2SYehuda Sadeh 21333d14c5d2SYehuda Sadeh void ceph_osdc_stop(struct ceph_osd_client *osdc) 21343d14c5d2SYehuda Sadeh { 2135a40c4f10SYehuda Sadeh flush_workqueue(osdc->notify_wq); 2136a40c4f10SYehuda Sadeh destroy_workqueue(osdc->notify_wq); 21373d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->timeout_work); 21383d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->osds_timeout_work); 21393d14c5d2SYehuda Sadeh if (osdc->osdmap) { 21403d14c5d2SYehuda Sadeh ceph_osdmap_destroy(osdc->osdmap); 21413d14c5d2SYehuda Sadeh osdc->osdmap = NULL; 21423d14c5d2SYehuda Sadeh } 2143aca420bcSSage Weil remove_all_osds(osdc); 21443d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 21453d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 21463d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op_reply); 21473d14c5d2SYehuda Sadeh } 21483d14c5d2SYehuda Sadeh 21493d14c5d2SYehuda Sadeh /* 21503d14c5d2SYehuda Sadeh * Read some contiguous pages. If we cross a stripe boundary, shorten 21513d14c5d2SYehuda Sadeh * *plen. Return number of bytes read, or error. 21523d14c5d2SYehuda Sadeh */ 21533d14c5d2SYehuda Sadeh int ceph_osdc_readpages(struct ceph_osd_client *osdc, 21543d14c5d2SYehuda Sadeh struct ceph_vino vino, struct ceph_file_layout *layout, 21553d14c5d2SYehuda Sadeh u64 off, u64 *plen, 21563d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 2157b7495fc2SSage Weil struct page **pages, int num_pages, int page_align) 21583d14c5d2SYehuda Sadeh { 21593d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 21603d14c5d2SYehuda Sadeh int rc = 0; 21613d14c5d2SYehuda Sadeh 21623d14c5d2SYehuda Sadeh dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino, 21633d14c5d2SYehuda Sadeh vino.snap, off, *plen); 216479528734SAlex Elder req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 1, 21653d14c5d2SYehuda Sadeh CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, 2166acead002SAlex Elder NULL, truncate_seq, truncate_size, 2167153e5167SAlex Elder false); 21686816282dSSage Weil if (IS_ERR(req)) 21696816282dSSage Weil return PTR_ERR(req); 21703d14c5d2SYehuda Sadeh 21713d14c5d2SYehuda Sadeh /* it may be a short read due to an object boundary */ 21720fff87ecSAlex Elder 217343bfe5deSAlex Elder ceph_osd_data_pages_init(&req->r_data_in, pages, *plen, page_align, 217443bfe5deSAlex Elder false, false); 21753d14c5d2SYehuda Sadeh 2176e0c59487SAlex Elder dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n", 217743bfe5deSAlex Elder off, *plen, *plen, page_align); 21783d14c5d2SYehuda Sadeh 217979528734SAlex Elder ceph_osdc_build_request(req, off, NULL, vino.snap, NULL); 218002ee07d3SAlex Elder 21813d14c5d2SYehuda Sadeh rc = ceph_osdc_start_request(osdc, req, false); 21823d14c5d2SYehuda Sadeh if (!rc) 21833d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 21843d14c5d2SYehuda Sadeh 21853d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 21863d14c5d2SYehuda Sadeh dout("readpages result %d\n", rc); 21873d14c5d2SYehuda Sadeh return rc; 21883d14c5d2SYehuda Sadeh } 21893d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_readpages); 21903d14c5d2SYehuda Sadeh 21913d14c5d2SYehuda Sadeh /* 21923d14c5d2SYehuda Sadeh * do a synchronous write on N pages 21933d14c5d2SYehuda Sadeh */ 21943d14c5d2SYehuda Sadeh int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, 21953d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 21963d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 21973d14c5d2SYehuda Sadeh u64 off, u64 len, 21983d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 21993d14c5d2SYehuda Sadeh struct timespec *mtime, 220024808826SAlex Elder struct page **pages, int num_pages) 22013d14c5d2SYehuda Sadeh { 22023d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 22033d14c5d2SYehuda Sadeh int rc = 0; 2204b7495fc2SSage Weil int page_align = off & ~PAGE_MASK; 22053d14c5d2SYehuda Sadeh 2206acead002SAlex Elder BUG_ON(vino.snap != CEPH_NOSNAP); /* snapshots aren't writeable */ 220779528734SAlex Elder req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 1, 22083d14c5d2SYehuda Sadeh CEPH_OSD_OP_WRITE, 220924808826SAlex Elder CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE, 2210acead002SAlex Elder snapc, truncate_seq, truncate_size, 2211153e5167SAlex Elder true); 22126816282dSSage Weil if (IS_ERR(req)) 22136816282dSSage Weil return PTR_ERR(req); 22143d14c5d2SYehuda Sadeh 22153d14c5d2SYehuda Sadeh /* it may be a short write due to an object boundary */ 221643bfe5deSAlex Elder ceph_osd_data_pages_init(&req->r_data_out, pages, len, page_align, 221743bfe5deSAlex Elder false, false); 221843bfe5deSAlex Elder dout("writepages %llu~%llu (%llu bytes)\n", off, len, len); 22193d14c5d2SYehuda Sadeh 222079528734SAlex Elder ceph_osdc_build_request(req, off, snapc, CEPH_NOSNAP, mtime); 222102ee07d3SAlex Elder 222287f979d3SAlex Elder rc = ceph_osdc_start_request(osdc, req, true); 22233d14c5d2SYehuda Sadeh if (!rc) 22243d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 22253d14c5d2SYehuda Sadeh 22263d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 22273d14c5d2SYehuda Sadeh if (rc == 0) 22283d14c5d2SYehuda Sadeh rc = len; 22293d14c5d2SYehuda Sadeh dout("writepages result %d\n", rc); 22303d14c5d2SYehuda Sadeh return rc; 22313d14c5d2SYehuda Sadeh } 22323d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_writepages); 22333d14c5d2SYehuda Sadeh 22343d14c5d2SYehuda Sadeh /* 22353d14c5d2SYehuda Sadeh * handle incoming message 22363d14c5d2SYehuda Sadeh */ 22373d14c5d2SYehuda Sadeh static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) 22383d14c5d2SYehuda Sadeh { 22393d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 22403d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc; 22413d14c5d2SYehuda Sadeh int type = le16_to_cpu(msg->hdr.type); 22423d14c5d2SYehuda Sadeh 22433d14c5d2SYehuda Sadeh if (!osd) 22443d14c5d2SYehuda Sadeh goto out; 22453d14c5d2SYehuda Sadeh osdc = osd->o_osdc; 22463d14c5d2SYehuda Sadeh 22473d14c5d2SYehuda Sadeh switch (type) { 22483d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 22493d14c5d2SYehuda Sadeh ceph_osdc_handle_map(osdc, msg); 22503d14c5d2SYehuda Sadeh break; 22513d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 22523d14c5d2SYehuda Sadeh handle_reply(osdc, msg, con); 22533d14c5d2SYehuda Sadeh break; 2254a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 2255a40c4f10SYehuda Sadeh handle_watch_notify(osdc, msg); 2256a40c4f10SYehuda Sadeh break; 22573d14c5d2SYehuda Sadeh 22583d14c5d2SYehuda Sadeh default: 22593d14c5d2SYehuda Sadeh pr_err("received unknown message type %d %s\n", type, 22603d14c5d2SYehuda Sadeh ceph_msg_type_name(type)); 22613d14c5d2SYehuda Sadeh } 22623d14c5d2SYehuda Sadeh out: 22633d14c5d2SYehuda Sadeh ceph_msg_put(msg); 22643d14c5d2SYehuda Sadeh } 22653d14c5d2SYehuda Sadeh 22663d14c5d2SYehuda Sadeh /* 22673d14c5d2SYehuda Sadeh * lookup and return message for incoming reply. set up reply message 22683d14c5d2SYehuda Sadeh * pages. 22693d14c5d2SYehuda Sadeh */ 22703d14c5d2SYehuda Sadeh static struct ceph_msg *get_reply(struct ceph_connection *con, 22713d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 22723d14c5d2SYehuda Sadeh int *skip) 22733d14c5d2SYehuda Sadeh { 22743d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 22753d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = osd->o_osdc; 22763d14c5d2SYehuda Sadeh struct ceph_msg *m; 22773d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 22783d14c5d2SYehuda Sadeh int front = le32_to_cpu(hdr->front_len); 22793d14c5d2SYehuda Sadeh int data_len = le32_to_cpu(hdr->data_len); 22803d14c5d2SYehuda Sadeh u64 tid; 22813d14c5d2SYehuda Sadeh 22823d14c5d2SYehuda Sadeh tid = le64_to_cpu(hdr->tid); 22833d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 22843d14c5d2SYehuda Sadeh req = __lookup_request(osdc, tid); 22853d14c5d2SYehuda Sadeh if (!req) { 22863d14c5d2SYehuda Sadeh *skip = 1; 22873d14c5d2SYehuda Sadeh m = NULL; 2288756a16a5SSage Weil dout("get_reply unknown tid %llu from osd%d\n", tid, 22893d14c5d2SYehuda Sadeh osd->o_osd); 22903d14c5d2SYehuda Sadeh goto out; 22913d14c5d2SYehuda Sadeh } 22923d14c5d2SYehuda Sadeh 2293ace6d3a9SAlex Elder if (req->r_reply->con) 22948921d114SAlex Elder dout("%s revoking msg %p from old con %p\n", __func__, 2295ace6d3a9SAlex Elder req->r_reply, req->r_reply->con); 22968921d114SAlex Elder ceph_msg_revoke_incoming(req->r_reply); 22973d14c5d2SYehuda Sadeh 22983d14c5d2SYehuda Sadeh if (front > req->r_reply->front.iov_len) { 22993d14c5d2SYehuda Sadeh pr_warning("get_reply front %d > preallocated %d\n", 23003d14c5d2SYehuda Sadeh front, (int)req->r_reply->front.iov_len); 2301b61c2763SSage Weil m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front, GFP_NOFS, false); 23023d14c5d2SYehuda Sadeh if (!m) 23033d14c5d2SYehuda Sadeh goto out; 23043d14c5d2SYehuda Sadeh ceph_msg_put(req->r_reply); 23053d14c5d2SYehuda Sadeh req->r_reply = m; 23063d14c5d2SYehuda Sadeh } 23073d14c5d2SYehuda Sadeh m = ceph_msg_get(req->r_reply); 23083d14c5d2SYehuda Sadeh 23093d14c5d2SYehuda Sadeh if (data_len > 0) { 23100fff87ecSAlex Elder struct ceph_osd_data *osd_data = &req->r_data_in; 23110fff87ecSAlex Elder 23120fff87ecSAlex Elder if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { 23130fff87ecSAlex Elder if (osd_data->pages && 2314e0c59487SAlex Elder unlikely(osd_data->length < data_len)) { 23152ac2b7a6SAlex Elder 2316e0c59487SAlex Elder pr_warning("tid %lld reply has %d bytes " 2317e0c59487SAlex Elder "we had only %llu bytes ready\n", 2318e0c59487SAlex Elder tid, data_len, osd_data->length); 23193d14c5d2SYehuda Sadeh *skip = 1; 23203d14c5d2SYehuda Sadeh ceph_msg_put(m); 23213d14c5d2SYehuda Sadeh m = NULL; 23223d14c5d2SYehuda Sadeh goto out; 23233d14c5d2SYehuda Sadeh } 23243d14c5d2SYehuda Sadeh } 23252ac2b7a6SAlex Elder } 23263d14c5d2SYehuda Sadeh *skip = 0; 23273d14c5d2SYehuda Sadeh dout("get_reply tid %lld %p\n", tid, m); 23283d14c5d2SYehuda Sadeh 23293d14c5d2SYehuda Sadeh out: 23303d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 23313d14c5d2SYehuda Sadeh return m; 23323d14c5d2SYehuda Sadeh 23333d14c5d2SYehuda Sadeh } 23343d14c5d2SYehuda Sadeh 23353d14c5d2SYehuda Sadeh static struct ceph_msg *alloc_msg(struct ceph_connection *con, 23363d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 23373d14c5d2SYehuda Sadeh int *skip) 23383d14c5d2SYehuda Sadeh { 23393d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 23403d14c5d2SYehuda Sadeh int type = le16_to_cpu(hdr->type); 23413d14c5d2SYehuda Sadeh int front = le32_to_cpu(hdr->front_len); 23423d14c5d2SYehuda Sadeh 23431c20f2d2SAlex Elder *skip = 0; 23443d14c5d2SYehuda Sadeh switch (type) { 23453d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 2346a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 2347b61c2763SSage Weil return ceph_msg_new(type, front, GFP_NOFS, false); 23483d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 23493d14c5d2SYehuda Sadeh return get_reply(con, hdr, skip); 23503d14c5d2SYehuda Sadeh default: 23513d14c5d2SYehuda Sadeh pr_info("alloc_msg unexpected msg type %d from osd%d\n", type, 23523d14c5d2SYehuda Sadeh osd->o_osd); 23533d14c5d2SYehuda Sadeh *skip = 1; 23543d14c5d2SYehuda Sadeh return NULL; 23553d14c5d2SYehuda Sadeh } 23563d14c5d2SYehuda Sadeh } 23573d14c5d2SYehuda Sadeh 23583d14c5d2SYehuda Sadeh /* 23593d14c5d2SYehuda Sadeh * Wrappers to refcount containing ceph_osd struct 23603d14c5d2SYehuda Sadeh */ 23613d14c5d2SYehuda Sadeh static struct ceph_connection *get_osd_con(struct ceph_connection *con) 23623d14c5d2SYehuda Sadeh { 23633d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 23643d14c5d2SYehuda Sadeh if (get_osd(osd)) 23653d14c5d2SYehuda Sadeh return con; 23663d14c5d2SYehuda Sadeh return NULL; 23673d14c5d2SYehuda Sadeh } 23683d14c5d2SYehuda Sadeh 23693d14c5d2SYehuda Sadeh static void put_osd_con(struct ceph_connection *con) 23703d14c5d2SYehuda Sadeh { 23713d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 23723d14c5d2SYehuda Sadeh put_osd(osd); 23733d14c5d2SYehuda Sadeh } 23743d14c5d2SYehuda Sadeh 23753d14c5d2SYehuda Sadeh /* 23763d14c5d2SYehuda Sadeh * authentication 23773d14c5d2SYehuda Sadeh */ 2378a3530df3SAlex Elder /* 2379a3530df3SAlex Elder * Note: returned pointer is the address of a structure that's 2380a3530df3SAlex Elder * managed separately. Caller must *not* attempt to free it. 2381a3530df3SAlex Elder */ 2382a3530df3SAlex Elder static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con, 23838f43fb53SAlex Elder int *proto, int force_new) 23843d14c5d2SYehuda Sadeh { 23853d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 23863d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 23873d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 238874f1869fSAlex Elder struct ceph_auth_handshake *auth = &o->o_auth; 23893d14c5d2SYehuda Sadeh 239074f1869fSAlex Elder if (force_new && auth->authorizer) { 239127859f97SSage Weil ceph_auth_destroy_authorizer(ac, auth->authorizer); 239274f1869fSAlex Elder auth->authorizer = NULL; 23933d14c5d2SYehuda Sadeh } 239427859f97SSage Weil if (!auth->authorizer) { 239527859f97SSage Weil int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_OSD, 2396a3530df3SAlex Elder auth); 23973d14c5d2SYehuda Sadeh if (ret) 2398a3530df3SAlex Elder return ERR_PTR(ret); 239927859f97SSage Weil } else { 240027859f97SSage Weil int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_OSD, 24010bed9b5cSSage Weil auth); 24020bed9b5cSSage Weil if (ret) 24030bed9b5cSSage Weil return ERR_PTR(ret); 24043d14c5d2SYehuda Sadeh } 24053d14c5d2SYehuda Sadeh *proto = ac->protocol; 240674f1869fSAlex Elder 2407a3530df3SAlex Elder return auth; 24083d14c5d2SYehuda Sadeh } 24093d14c5d2SYehuda Sadeh 24103d14c5d2SYehuda Sadeh 24113d14c5d2SYehuda Sadeh static int verify_authorizer_reply(struct ceph_connection *con, int len) 24123d14c5d2SYehuda Sadeh { 24133d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 24143d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 24153d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 24163d14c5d2SYehuda Sadeh 241727859f97SSage Weil return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer, len); 24183d14c5d2SYehuda Sadeh } 24193d14c5d2SYehuda Sadeh 24203d14c5d2SYehuda Sadeh static int invalidate_authorizer(struct ceph_connection *con) 24213d14c5d2SYehuda Sadeh { 24223d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 24233d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 24243d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 24253d14c5d2SYehuda Sadeh 242627859f97SSage Weil ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD); 24273d14c5d2SYehuda Sadeh return ceph_monc_validate_auth(&osdc->client->monc); 24283d14c5d2SYehuda Sadeh } 24293d14c5d2SYehuda Sadeh 24303d14c5d2SYehuda Sadeh static const struct ceph_connection_operations osd_con_ops = { 24313d14c5d2SYehuda Sadeh .get = get_osd_con, 24323d14c5d2SYehuda Sadeh .put = put_osd_con, 24333d14c5d2SYehuda Sadeh .dispatch = dispatch, 24343d14c5d2SYehuda Sadeh .get_authorizer = get_authorizer, 24353d14c5d2SYehuda Sadeh .verify_authorizer_reply = verify_authorizer_reply, 24363d14c5d2SYehuda Sadeh .invalidate_authorizer = invalidate_authorizer, 24373d14c5d2SYehuda Sadeh .alloc_msg = alloc_msg, 24383d14c5d2SYehuda Sadeh .fault = osd_reset, 24393d14c5d2SYehuda Sadeh }; 2440