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 static int op_has_extent(int op) 363d14c5d2SYehuda Sadeh { 373d14c5d2SYehuda Sadeh return (op == CEPH_OSD_OP_READ || 383d14c5d2SYehuda Sadeh op == CEPH_OSD_OP_WRITE); 393d14c5d2SYehuda Sadeh } 403d14c5d2SYehuda Sadeh 413d14c5d2SYehuda Sadeh /* 423d14c5d2SYehuda Sadeh * Implement client access to distributed object storage cluster. 433d14c5d2SYehuda Sadeh * 443d14c5d2SYehuda Sadeh * All data objects are stored within a cluster/cloud of OSDs, or 453d14c5d2SYehuda Sadeh * "object storage devices." (Note that Ceph OSDs have _nothing_ to 463d14c5d2SYehuda Sadeh * do with the T10 OSD extensions to SCSI.) Ceph OSDs are simply 473d14c5d2SYehuda Sadeh * remote daemons serving up and coordinating consistent and safe 483d14c5d2SYehuda Sadeh * access to storage. 493d14c5d2SYehuda Sadeh * 503d14c5d2SYehuda Sadeh * Cluster membership and the mapping of data objects onto storage devices 513d14c5d2SYehuda Sadeh * are described by the osd map. 523d14c5d2SYehuda Sadeh * 533d14c5d2SYehuda Sadeh * We keep track of pending OSD requests (read, write), resubmit 543d14c5d2SYehuda Sadeh * requests to different OSDs when the cluster topology/data layout 553d14c5d2SYehuda Sadeh * change, or retry the affected requests when the communications 563d14c5d2SYehuda Sadeh * channel with an OSD is reset. 573d14c5d2SYehuda Sadeh */ 583d14c5d2SYehuda Sadeh 593d14c5d2SYehuda Sadeh /* 603d14c5d2SYehuda Sadeh * calculate the mapping of a file extent onto an object, and fill out the 613d14c5d2SYehuda Sadeh * request accordingly. shorten extent as necessary if it crosses an 623d14c5d2SYehuda Sadeh * object boundary. 633d14c5d2SYehuda Sadeh * 643d14c5d2SYehuda Sadeh * fill osd op in request message. 653d14c5d2SYehuda Sadeh */ 66e75b45cfSAlex Elder static int calc_layout(struct ceph_vino vino, 673d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 683d14c5d2SYehuda Sadeh u64 off, u64 *plen, 693d14c5d2SYehuda Sadeh struct ceph_osd_request *req, 703d14c5d2SYehuda Sadeh struct ceph_osd_req_op *op) 713d14c5d2SYehuda Sadeh { 7260e56f13SAlex Elder u64 orig_len = *plen; 7360e56f13SAlex Elder u64 bno = 0; 7460e56f13SAlex Elder u64 objoff = 0; 7560e56f13SAlex Elder u64 objlen = 0; 76d63b77f4SSage Weil int r; 773d14c5d2SYehuda Sadeh 7860e56f13SAlex Elder /* object extent? */ 7960e56f13SAlex Elder r = ceph_calc_file_object_mapping(layout, off, orig_len, &bno, 8060e56f13SAlex Elder &objoff, &objlen); 81d63b77f4SSage Weil if (r < 0) 82d63b77f4SSage Weil return r; 8360e56f13SAlex Elder if (objlen < orig_len) { 8460e56f13SAlex Elder *plen = objlen; 8560e56f13SAlex Elder dout(" skipping last %llu, final file extent %llu~%llu\n", 8660e56f13SAlex Elder orig_len - *plen, off, *plen); 8760e56f13SAlex Elder } 8860e56f13SAlex Elder 8960e56f13SAlex Elder if (op_has_extent(op->op)) { 9060e56f13SAlex Elder u32 osize = le32_to_cpu(layout->fl_object_size); 9160e56f13SAlex Elder op->extent.offset = objoff; 9260e56f13SAlex Elder op->extent.length = objlen; 9360e56f13SAlex Elder if (op->extent.truncate_size <= off - objoff) { 9460e56f13SAlex Elder op->extent.truncate_size = 0; 9560e56f13SAlex Elder } else { 9660e56f13SAlex Elder op->extent.truncate_size -= off - objoff; 9760e56f13SAlex Elder if (op->extent.truncate_size > osize) 9860e56f13SAlex Elder op->extent.truncate_size = osize; 9960e56f13SAlex Elder } 10060e56f13SAlex Elder } 10160e56f13SAlex Elder req->r_num_pages = calc_pages_for(off, *plen); 10260e56f13SAlex Elder req->r_page_alignment = off & ~PAGE_MASK; 10360e56f13SAlex Elder if (op->op == CEPH_OSD_OP_WRITE) 10460e56f13SAlex Elder op->payload_len = *plen; 10560e56f13SAlex Elder 10660e56f13SAlex Elder dout("calc_layout bno=%llx %llu~%llu (%d pages)\n", 10760e56f13SAlex Elder bno, objoff, objlen, req->r_num_pages); 1083d14c5d2SYehuda Sadeh 1092dab036bSSage Weil snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx", vino.ino, bno); 1103d14c5d2SYehuda Sadeh req->r_oid_len = strlen(req->r_oid); 111d63b77f4SSage Weil 112d63b77f4SSage Weil return r; 1133d14c5d2SYehuda Sadeh } 1143d14c5d2SYehuda Sadeh 1153d14c5d2SYehuda Sadeh /* 1163d14c5d2SYehuda Sadeh * requests 1173d14c5d2SYehuda Sadeh */ 1183d14c5d2SYehuda Sadeh void ceph_osdc_release_request(struct kref *kref) 1193d14c5d2SYehuda Sadeh { 1203d14c5d2SYehuda Sadeh struct ceph_osd_request *req = container_of(kref, 1213d14c5d2SYehuda Sadeh struct ceph_osd_request, 1223d14c5d2SYehuda Sadeh r_kref); 1233d14c5d2SYehuda Sadeh 1243d14c5d2SYehuda Sadeh if (req->r_request) 1253d14c5d2SYehuda Sadeh ceph_msg_put(req->r_request); 1263d14c5d2SYehuda Sadeh if (req->r_con_filling_msg) { 1279cbb1d72SAlex Elder dout("%s revoking msg %p from con %p\n", __func__, 1289cbb1d72SAlex Elder req->r_reply, req->r_con_filling_msg); 1298921d114SAlex Elder ceph_msg_revoke_incoming(req->r_reply); 1300d47766fSSage Weil req->r_con_filling_msg->ops->put(req->r_con_filling_msg); 1319cbb1d72SAlex Elder req->r_con_filling_msg = NULL; 1323d14c5d2SYehuda Sadeh } 133ab8cb34aSAlex Elder if (req->r_reply) 134ab8cb34aSAlex Elder ceph_msg_put(req->r_reply); 1353d14c5d2SYehuda Sadeh if (req->r_own_pages) 1363d14c5d2SYehuda Sadeh ceph_release_page_vector(req->r_pages, 1373d14c5d2SYehuda Sadeh req->r_num_pages); 1383d14c5d2SYehuda Sadeh ceph_put_snap_context(req->r_snapc); 139c885837fSAlex Elder ceph_pagelist_release(&req->r_trail); 1403d14c5d2SYehuda Sadeh if (req->r_mempool) 1413d14c5d2SYehuda Sadeh mempool_free(req, req->r_osdc->req_mempool); 1423d14c5d2SYehuda Sadeh else 1433d14c5d2SYehuda Sadeh kfree(req); 1443d14c5d2SYehuda Sadeh } 1453d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_release_request); 1463d14c5d2SYehuda Sadeh 1473d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, 1483d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 149ae7ca4a3SAlex Elder unsigned int num_op, 1503d14c5d2SYehuda Sadeh bool use_mempool, 15154a54007SAlex Elder gfp_t gfp_flags) 1523d14c5d2SYehuda Sadeh { 1533d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 1543d14c5d2SYehuda Sadeh struct ceph_msg *msg; 1553d14c5d2SYehuda Sadeh size_t msg_size = sizeof(struct ceph_osd_request_head); 1563d14c5d2SYehuda Sadeh 1573d14c5d2SYehuda Sadeh msg_size += num_op*sizeof(struct ceph_osd_op); 1583d14c5d2SYehuda Sadeh 1593d14c5d2SYehuda Sadeh if (use_mempool) { 1603d14c5d2SYehuda Sadeh req = mempool_alloc(osdc->req_mempool, gfp_flags); 1613d14c5d2SYehuda Sadeh memset(req, 0, sizeof(*req)); 1623d14c5d2SYehuda Sadeh } else { 1633d14c5d2SYehuda Sadeh req = kzalloc(sizeof(*req), gfp_flags); 1643d14c5d2SYehuda Sadeh } 1653d14c5d2SYehuda Sadeh if (req == NULL) 1663d14c5d2SYehuda Sadeh return NULL; 1673d14c5d2SYehuda Sadeh 1683d14c5d2SYehuda Sadeh req->r_osdc = osdc; 1693d14c5d2SYehuda Sadeh req->r_mempool = use_mempool; 1703d14c5d2SYehuda Sadeh 1713d14c5d2SYehuda Sadeh kref_init(&req->r_kref); 1723d14c5d2SYehuda Sadeh init_completion(&req->r_completion); 1733d14c5d2SYehuda Sadeh init_completion(&req->r_safe_completion); 174a978fa20SAlex Elder RB_CLEAR_NODE(&req->r_node); 1753d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&req->r_unsafe_item); 176a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&req->r_linger_item); 177a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&req->r_linger_osd); 178935b639aSSage Weil INIT_LIST_HEAD(&req->r_req_lru_item); 179cd43045cSSage Weil INIT_LIST_HEAD(&req->r_osd_item); 180cd43045cSSage Weil 1813d14c5d2SYehuda Sadeh /* create reply message */ 1823d14c5d2SYehuda Sadeh if (use_mempool) 1833d14c5d2SYehuda Sadeh msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0); 1843d14c5d2SYehuda Sadeh else 1853d14c5d2SYehuda Sadeh msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, 186b61c2763SSage Weil OSD_OPREPLY_FRONT_LEN, gfp_flags, true); 1873d14c5d2SYehuda Sadeh if (!msg) { 1883d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 1893d14c5d2SYehuda Sadeh return NULL; 1903d14c5d2SYehuda Sadeh } 1913d14c5d2SYehuda Sadeh req->r_reply = msg; 1923d14c5d2SYehuda Sadeh 193c885837fSAlex Elder ceph_pagelist_init(&req->r_trail); 194d50b409fSSage Weil 1953d14c5d2SYehuda Sadeh /* create request message; allow space for oid */ 196224736d9SStratos Psomadakis msg_size += MAX_OBJ_NAME_SIZE; 1973d14c5d2SYehuda Sadeh if (snapc) 1983d14c5d2SYehuda Sadeh msg_size += sizeof(u64) * snapc->num_snaps; 1993d14c5d2SYehuda Sadeh if (use_mempool) 2003d14c5d2SYehuda Sadeh msg = ceph_msgpool_get(&osdc->msgpool_op, 0); 2013d14c5d2SYehuda Sadeh else 202b61c2763SSage Weil msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size, gfp_flags, true); 2033d14c5d2SYehuda Sadeh if (!msg) { 2043d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 2053d14c5d2SYehuda Sadeh return NULL; 2063d14c5d2SYehuda Sadeh } 2073d14c5d2SYehuda Sadeh 2083d14c5d2SYehuda Sadeh memset(msg->front.iov_base, 0, msg->front.iov_len); 2093d14c5d2SYehuda Sadeh 2103d14c5d2SYehuda Sadeh req->r_request = msg; 2113d14c5d2SYehuda Sadeh 2123d14c5d2SYehuda Sadeh return req; 2133d14c5d2SYehuda Sadeh } 2143d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_alloc_request); 2153d14c5d2SYehuda Sadeh 2163d14c5d2SYehuda Sadeh static void osd_req_encode_op(struct ceph_osd_request *req, 2173d14c5d2SYehuda Sadeh struct ceph_osd_op *dst, 2183d14c5d2SYehuda Sadeh struct ceph_osd_req_op *src) 2193d14c5d2SYehuda Sadeh { 2203d14c5d2SYehuda Sadeh dst->op = cpu_to_le16(src->op); 2213d14c5d2SYehuda Sadeh 222065a68f9SAlex Elder switch (src->op) { 223fbfab539SAlex Elder case CEPH_OSD_OP_STAT: 224fbfab539SAlex Elder break; 2253d14c5d2SYehuda Sadeh case CEPH_OSD_OP_READ: 2263d14c5d2SYehuda Sadeh case CEPH_OSD_OP_WRITE: 2273d14c5d2SYehuda Sadeh dst->extent.offset = 2283d14c5d2SYehuda Sadeh cpu_to_le64(src->extent.offset); 2293d14c5d2SYehuda Sadeh dst->extent.length = 2303d14c5d2SYehuda Sadeh cpu_to_le64(src->extent.length); 2313d14c5d2SYehuda Sadeh dst->extent.truncate_size = 2323d14c5d2SYehuda Sadeh cpu_to_le64(src->extent.truncate_size); 2333d14c5d2SYehuda Sadeh dst->extent.truncate_seq = 2343d14c5d2SYehuda Sadeh cpu_to_le32(src->extent.truncate_seq); 2353d14c5d2SYehuda Sadeh break; 2363d14c5d2SYehuda Sadeh case CEPH_OSD_OP_CALL: 2373d14c5d2SYehuda Sadeh dst->cls.class_len = src->cls.class_len; 2383d14c5d2SYehuda Sadeh dst->cls.method_len = src->cls.method_len; 2393d14c5d2SYehuda Sadeh dst->cls.indata_len = cpu_to_le32(src->cls.indata_len); 2403d14c5d2SYehuda Sadeh 241c885837fSAlex Elder ceph_pagelist_append(&req->r_trail, src->cls.class_name, 2423d14c5d2SYehuda Sadeh src->cls.class_len); 243c885837fSAlex Elder ceph_pagelist_append(&req->r_trail, src->cls.method_name, 2443d14c5d2SYehuda Sadeh src->cls.method_len); 245c885837fSAlex Elder ceph_pagelist_append(&req->r_trail, src->cls.indata, 2463d14c5d2SYehuda Sadeh src->cls.indata_len); 2473d14c5d2SYehuda Sadeh break; 2483d14c5d2SYehuda Sadeh case CEPH_OSD_OP_STARTSYNC: 2493d14c5d2SYehuda Sadeh break; 250a40c4f10SYehuda Sadeh case CEPH_OSD_OP_NOTIFY_ACK: 251a40c4f10SYehuda Sadeh case CEPH_OSD_OP_WATCH: 252a40c4f10SYehuda Sadeh dst->watch.cookie = cpu_to_le64(src->watch.cookie); 253a40c4f10SYehuda Sadeh dst->watch.ver = cpu_to_le64(src->watch.ver); 254a40c4f10SYehuda Sadeh dst->watch.flag = src->watch.flag; 255a40c4f10SYehuda Sadeh break; 2563d14c5d2SYehuda Sadeh default: 2573d14c5d2SYehuda Sadeh pr_err("unrecognized osd opcode %d\n", dst->op); 2583d14c5d2SYehuda Sadeh WARN_ON(1); 2593d14c5d2SYehuda Sadeh break; 2604c46459cSAlex Elder case CEPH_OSD_OP_MAPEXT: 2614c46459cSAlex Elder case CEPH_OSD_OP_MASKTRUNC: 2624c46459cSAlex Elder case CEPH_OSD_OP_SPARSE_READ: 263a9f36c3eSAlex Elder case CEPH_OSD_OP_NOTIFY: 2644c46459cSAlex Elder case CEPH_OSD_OP_ASSERT_VER: 2654c46459cSAlex Elder case CEPH_OSD_OP_WRITEFULL: 2664c46459cSAlex Elder case CEPH_OSD_OP_TRUNCATE: 2674c46459cSAlex Elder case CEPH_OSD_OP_ZERO: 2684c46459cSAlex Elder case CEPH_OSD_OP_DELETE: 2694c46459cSAlex Elder case CEPH_OSD_OP_APPEND: 2704c46459cSAlex Elder case CEPH_OSD_OP_SETTRUNC: 2714c46459cSAlex Elder case CEPH_OSD_OP_TRIMTRUNC: 2724c46459cSAlex Elder case CEPH_OSD_OP_TMAPUP: 2734c46459cSAlex Elder case CEPH_OSD_OP_TMAPPUT: 2744c46459cSAlex Elder case CEPH_OSD_OP_TMAPGET: 2754c46459cSAlex Elder case CEPH_OSD_OP_CREATE: 276a9f36c3eSAlex Elder case CEPH_OSD_OP_ROLLBACK: 2774c46459cSAlex Elder case CEPH_OSD_OP_OMAPGETKEYS: 2784c46459cSAlex Elder case CEPH_OSD_OP_OMAPGETVALS: 2794c46459cSAlex Elder case CEPH_OSD_OP_OMAPGETHEADER: 2804c46459cSAlex Elder case CEPH_OSD_OP_OMAPGETVALSBYKEYS: 2814c46459cSAlex Elder case CEPH_OSD_OP_MODE_RD: 2824c46459cSAlex Elder case CEPH_OSD_OP_OMAPSETVALS: 2834c46459cSAlex Elder case CEPH_OSD_OP_OMAPSETHEADER: 2844c46459cSAlex Elder case CEPH_OSD_OP_OMAPCLEAR: 2854c46459cSAlex Elder case CEPH_OSD_OP_OMAPRMKEYS: 2864c46459cSAlex Elder case CEPH_OSD_OP_OMAP_CMP: 2874c46459cSAlex Elder case CEPH_OSD_OP_CLONERANGE: 2884c46459cSAlex Elder case CEPH_OSD_OP_ASSERT_SRC_VERSION: 2894c46459cSAlex Elder case CEPH_OSD_OP_SRC_CMPXATTR: 290a9f36c3eSAlex Elder case CEPH_OSD_OP_GETXATTR: 2914c46459cSAlex Elder case CEPH_OSD_OP_GETXATTRS: 292a9f36c3eSAlex Elder case CEPH_OSD_OP_CMPXATTR: 293a9f36c3eSAlex Elder case CEPH_OSD_OP_SETXATTR: 2944c46459cSAlex Elder case CEPH_OSD_OP_SETXATTRS: 2954c46459cSAlex Elder case CEPH_OSD_OP_RESETXATTRS: 2964c46459cSAlex Elder case CEPH_OSD_OP_RMXATTR: 2974c46459cSAlex Elder case CEPH_OSD_OP_PULL: 2984c46459cSAlex Elder case CEPH_OSD_OP_PUSH: 2994c46459cSAlex Elder case CEPH_OSD_OP_BALANCEREADS: 3004c46459cSAlex Elder case CEPH_OSD_OP_UNBALANCEREADS: 3014c46459cSAlex Elder case CEPH_OSD_OP_SCRUB: 3024c46459cSAlex Elder case CEPH_OSD_OP_SCRUB_RESERVE: 3034c46459cSAlex Elder case CEPH_OSD_OP_SCRUB_UNRESERVE: 3044c46459cSAlex Elder case CEPH_OSD_OP_SCRUB_STOP: 3054c46459cSAlex Elder case CEPH_OSD_OP_SCRUB_MAP: 3064c46459cSAlex Elder case CEPH_OSD_OP_WRLOCK: 3074c46459cSAlex Elder case CEPH_OSD_OP_WRUNLOCK: 3084c46459cSAlex Elder case CEPH_OSD_OP_RDLOCK: 3094c46459cSAlex Elder case CEPH_OSD_OP_RDUNLOCK: 3104c46459cSAlex Elder case CEPH_OSD_OP_UPLOCK: 3114c46459cSAlex Elder case CEPH_OSD_OP_DNLOCK: 3124c46459cSAlex Elder case CEPH_OSD_OP_PGLS: 3134c46459cSAlex Elder case CEPH_OSD_OP_PGLS_FILTER: 3144c46459cSAlex Elder pr_err("unsupported osd opcode %s\n", 3154c46459cSAlex Elder ceph_osd_op_name(dst->op)); 3164c46459cSAlex Elder WARN_ON(1); 3174c46459cSAlex Elder break; 3183d14c5d2SYehuda Sadeh } 3193d14c5d2SYehuda Sadeh dst->payload_len = cpu_to_le32(src->payload_len); 3203d14c5d2SYehuda Sadeh } 3213d14c5d2SYehuda Sadeh 3223d14c5d2SYehuda Sadeh /* 3233d14c5d2SYehuda Sadeh * build new request AND message 3243d14c5d2SYehuda Sadeh * 3253d14c5d2SYehuda Sadeh */ 3263d14c5d2SYehuda Sadeh void ceph_osdc_build_request(struct ceph_osd_request *req, 327ae7ca4a3SAlex Elder u64 off, u64 len, unsigned int num_op, 3283d14c5d2SYehuda Sadeh struct ceph_osd_req_op *src_ops, 3294d6b250bSAlex Elder struct ceph_snap_context *snapc, u64 snap_id, 330af77f26cSAlex Elder struct timespec *mtime) 3313d14c5d2SYehuda Sadeh { 3323d14c5d2SYehuda Sadeh struct ceph_msg *msg = req->r_request; 3333d14c5d2SYehuda Sadeh struct ceph_osd_request_head *head; 3343d14c5d2SYehuda Sadeh struct ceph_osd_req_op *src_op; 3353d14c5d2SYehuda Sadeh struct ceph_osd_op *op; 3363d14c5d2SYehuda Sadeh void *p; 3373d14c5d2SYehuda Sadeh size_t msg_size = sizeof(*head) + num_op*sizeof(*op); 3383d14c5d2SYehuda Sadeh int flags = req->r_flags; 339f44246e3SAlex Elder u64 data_len; 3403d14c5d2SYehuda Sadeh int i; 3413d14c5d2SYehuda Sadeh 342d178a9e7SAlex Elder WARN_ON((flags & (CEPH_OSD_FLAG_READ|CEPH_OSD_FLAG_WRITE)) == 0); 343d178a9e7SAlex Elder 3443d14c5d2SYehuda Sadeh head = msg->front.iov_base; 3454d6b250bSAlex Elder head->snapid = cpu_to_le64(snap_id); 3463d14c5d2SYehuda Sadeh op = (void *)(head + 1); 3473d14c5d2SYehuda Sadeh p = (void *)(op + num_op); 3483d14c5d2SYehuda Sadeh 3493d14c5d2SYehuda Sadeh req->r_snapc = ceph_get_snap_context(snapc); 3503d14c5d2SYehuda Sadeh 3513d14c5d2SYehuda Sadeh head->client_inc = cpu_to_le32(1); /* always, for now. */ 3523d14c5d2SYehuda Sadeh head->flags = cpu_to_le32(flags); 3533d14c5d2SYehuda Sadeh if (flags & CEPH_OSD_FLAG_WRITE) 3543d14c5d2SYehuda Sadeh ceph_encode_timespec(&head->mtime, mtime); 355ae7ca4a3SAlex Elder BUG_ON(num_op > (unsigned int) ((u16) -1)); 3563d14c5d2SYehuda Sadeh head->num_ops = cpu_to_le16(num_op); 3573d14c5d2SYehuda Sadeh 3583d14c5d2SYehuda Sadeh /* fill in oid */ 359af77f26cSAlex Elder head->object_len = cpu_to_le32(req->r_oid_len); 360af77f26cSAlex Elder memcpy(p, req->r_oid, req->r_oid_len); 361af77f26cSAlex Elder p += req->r_oid_len; 3623d14c5d2SYehuda Sadeh 3633d14c5d2SYehuda Sadeh src_op = src_ops; 364ae7ca4a3SAlex Elder while (num_op--) 365ae7ca4a3SAlex Elder osd_req_encode_op(req, op++, src_op++); 3663d14c5d2SYehuda Sadeh 3673d14c5d2SYehuda Sadeh if (snapc) { 3683d14c5d2SYehuda Sadeh head->snap_seq = cpu_to_le64(snapc->seq); 3693d14c5d2SYehuda Sadeh head->num_snaps = cpu_to_le32(snapc->num_snaps); 3703d14c5d2SYehuda Sadeh for (i = 0; i < snapc->num_snaps; i++) { 3713d14c5d2SYehuda Sadeh put_unaligned_le64(snapc->snaps[i], p); 3723d14c5d2SYehuda Sadeh p += sizeof(u64); 3733d14c5d2SYehuda Sadeh } 3743d14c5d2SYehuda Sadeh } 3753d14c5d2SYehuda Sadeh 376f44246e3SAlex Elder data_len = req->r_trail.length; 3773d14c5d2SYehuda Sadeh if (flags & CEPH_OSD_FLAG_WRITE) { 3783d14c5d2SYehuda Sadeh req->r_request->hdr.data_off = cpu_to_le16(off); 379f44246e3SAlex Elder data_len += len; 3803d14c5d2SYehuda Sadeh } 381f44246e3SAlex Elder req->r_request->hdr.data_len = cpu_to_le32(data_len); 382c5c6b19dSSage Weil req->r_request->page_alignment = req->r_page_alignment; 383c5c6b19dSSage Weil 3843d14c5d2SYehuda Sadeh BUG_ON(p > msg->front.iov_base + msg->front.iov_len); 3853d14c5d2SYehuda Sadeh msg_size = p - msg->front.iov_base; 3863d14c5d2SYehuda Sadeh msg->front.iov_len = msg_size; 3873d14c5d2SYehuda Sadeh msg->hdr.front_len = cpu_to_le32(msg_size); 3883d14c5d2SYehuda Sadeh return; 3893d14c5d2SYehuda Sadeh } 3903d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_build_request); 3913d14c5d2SYehuda Sadeh 3923d14c5d2SYehuda Sadeh /* 3933d14c5d2SYehuda Sadeh * build new request AND message, calculate layout, and adjust file 3943d14c5d2SYehuda Sadeh * extent as needed. 3953d14c5d2SYehuda Sadeh * 3963d14c5d2SYehuda Sadeh * if the file was recently truncated, we include information about its 3973d14c5d2SYehuda Sadeh * old and new size so that the object can be updated appropriately. (we 3983d14c5d2SYehuda Sadeh * avoid synchronously deleting truncated objects because it's slow.) 3993d14c5d2SYehuda Sadeh * 4003d14c5d2SYehuda Sadeh * if @do_sync, include a 'startsync' command so that the osd will flush 4013d14c5d2SYehuda Sadeh * data quickly. 4023d14c5d2SYehuda Sadeh */ 4033d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, 4043d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 4053d14c5d2SYehuda Sadeh struct ceph_vino vino, 4063d14c5d2SYehuda Sadeh u64 off, u64 *plen, 4073d14c5d2SYehuda Sadeh int opcode, int flags, 4083d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 4093d14c5d2SYehuda Sadeh int do_sync, 4103d14c5d2SYehuda Sadeh u32 truncate_seq, 4113d14c5d2SYehuda Sadeh u64 truncate_size, 4123d14c5d2SYehuda Sadeh struct timespec *mtime, 413a3bea47eSAlex Elder bool use_mempool, 414b7495fc2SSage Weil int page_align) 4153d14c5d2SYehuda Sadeh { 416ae7ca4a3SAlex Elder struct ceph_osd_req_op ops[2]; 4173d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 418ae7ca4a3SAlex Elder unsigned int num_op = 1; 4196816282dSSage Weil int r; 4203d14c5d2SYehuda Sadeh 421ae7ca4a3SAlex Elder memset(&ops, 0, sizeof ops); 422ae7ca4a3SAlex Elder 4233d14c5d2SYehuda Sadeh ops[0].op = opcode; 4243d14c5d2SYehuda Sadeh ops[0].extent.truncate_seq = truncate_seq; 4253d14c5d2SYehuda Sadeh ops[0].extent.truncate_size = truncate_size; 4263d14c5d2SYehuda Sadeh 4273d14c5d2SYehuda Sadeh if (do_sync) { 4283d14c5d2SYehuda Sadeh ops[1].op = CEPH_OSD_OP_STARTSYNC; 429ae7ca4a3SAlex Elder num_op++; 430ae7ca4a3SAlex Elder } 4313d14c5d2SYehuda Sadeh 432ae7ca4a3SAlex Elder req = ceph_osdc_alloc_request(osdc, snapc, num_op, use_mempool, 433ae7ca4a3SAlex Elder GFP_NOFS); 4344ad12621SSage Weil if (!req) 4356816282dSSage Weil return ERR_PTR(-ENOMEM); 436d178a9e7SAlex Elder req->r_flags = flags; 4373d14c5d2SYehuda Sadeh 4383d14c5d2SYehuda Sadeh /* calculate max write size */ 439e75b45cfSAlex Elder r = calc_layout(vino, layout, off, plen, req, ops); 4406816282dSSage Weil if (r < 0) 4416816282dSSage Weil return ERR_PTR(r); 4423d14c5d2SYehuda Sadeh req->r_file_layout = *layout; /* keep a copy */ 4433d14c5d2SYehuda Sadeh 4449bb0ce2bSSage Weil /* in case it differs from natural (file) alignment that 4459bb0ce2bSSage Weil calc_layout filled in for us */ 4469bb0ce2bSSage Weil req->r_num_pages = calc_pages_for(page_align, *plen); 447b7495fc2SSage Weil req->r_page_alignment = page_align; 448b7495fc2SSage Weil 449ae7ca4a3SAlex Elder ceph_osdc_build_request(req, off, *plen, num_op, ops, 450ae7ca4a3SAlex Elder snapc, vino.snap, mtime); 4513d14c5d2SYehuda Sadeh 4523d14c5d2SYehuda Sadeh return req; 4533d14c5d2SYehuda Sadeh } 4543d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_new_request); 4553d14c5d2SYehuda Sadeh 4563d14c5d2SYehuda Sadeh /* 4573d14c5d2SYehuda Sadeh * We keep osd requests in an rbtree, sorted by ->r_tid. 4583d14c5d2SYehuda Sadeh */ 4593d14c5d2SYehuda Sadeh static void __insert_request(struct ceph_osd_client *osdc, 4603d14c5d2SYehuda Sadeh struct ceph_osd_request *new) 4613d14c5d2SYehuda Sadeh { 4623d14c5d2SYehuda Sadeh struct rb_node **p = &osdc->requests.rb_node; 4633d14c5d2SYehuda Sadeh struct rb_node *parent = NULL; 4643d14c5d2SYehuda Sadeh struct ceph_osd_request *req = NULL; 4653d14c5d2SYehuda Sadeh 4663d14c5d2SYehuda Sadeh while (*p) { 4673d14c5d2SYehuda Sadeh parent = *p; 4683d14c5d2SYehuda Sadeh req = rb_entry(parent, struct ceph_osd_request, r_node); 4693d14c5d2SYehuda Sadeh if (new->r_tid < req->r_tid) 4703d14c5d2SYehuda Sadeh p = &(*p)->rb_left; 4713d14c5d2SYehuda Sadeh else if (new->r_tid > req->r_tid) 4723d14c5d2SYehuda Sadeh p = &(*p)->rb_right; 4733d14c5d2SYehuda Sadeh else 4743d14c5d2SYehuda Sadeh BUG(); 4753d14c5d2SYehuda Sadeh } 4763d14c5d2SYehuda Sadeh 4773d14c5d2SYehuda Sadeh rb_link_node(&new->r_node, parent, p); 4783d14c5d2SYehuda Sadeh rb_insert_color(&new->r_node, &osdc->requests); 4793d14c5d2SYehuda Sadeh } 4803d14c5d2SYehuda Sadeh 4813d14c5d2SYehuda Sadeh static struct ceph_osd_request *__lookup_request(struct ceph_osd_client *osdc, 4823d14c5d2SYehuda Sadeh u64 tid) 4833d14c5d2SYehuda Sadeh { 4843d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 4853d14c5d2SYehuda Sadeh struct rb_node *n = osdc->requests.rb_node; 4863d14c5d2SYehuda Sadeh 4873d14c5d2SYehuda Sadeh while (n) { 4883d14c5d2SYehuda Sadeh req = rb_entry(n, struct ceph_osd_request, r_node); 4893d14c5d2SYehuda Sadeh if (tid < req->r_tid) 4903d14c5d2SYehuda Sadeh n = n->rb_left; 4913d14c5d2SYehuda Sadeh else if (tid > req->r_tid) 4923d14c5d2SYehuda Sadeh n = n->rb_right; 4933d14c5d2SYehuda Sadeh else 4943d14c5d2SYehuda Sadeh return req; 4953d14c5d2SYehuda Sadeh } 4963d14c5d2SYehuda Sadeh return NULL; 4973d14c5d2SYehuda Sadeh } 4983d14c5d2SYehuda Sadeh 4993d14c5d2SYehuda Sadeh static struct ceph_osd_request * 5003d14c5d2SYehuda Sadeh __lookup_request_ge(struct ceph_osd_client *osdc, 5013d14c5d2SYehuda Sadeh u64 tid) 5023d14c5d2SYehuda Sadeh { 5033d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 5043d14c5d2SYehuda Sadeh struct rb_node *n = osdc->requests.rb_node; 5053d14c5d2SYehuda Sadeh 5063d14c5d2SYehuda Sadeh while (n) { 5073d14c5d2SYehuda Sadeh req = rb_entry(n, struct ceph_osd_request, r_node); 5083d14c5d2SYehuda Sadeh if (tid < req->r_tid) { 5093d14c5d2SYehuda Sadeh if (!n->rb_left) 5103d14c5d2SYehuda Sadeh return req; 5113d14c5d2SYehuda Sadeh n = n->rb_left; 5123d14c5d2SYehuda Sadeh } else if (tid > req->r_tid) { 5133d14c5d2SYehuda Sadeh n = n->rb_right; 5143d14c5d2SYehuda Sadeh } else { 5153d14c5d2SYehuda Sadeh return req; 5163d14c5d2SYehuda Sadeh } 5173d14c5d2SYehuda Sadeh } 5183d14c5d2SYehuda Sadeh return NULL; 5193d14c5d2SYehuda Sadeh } 5203d14c5d2SYehuda Sadeh 5216f6c7006SSage Weil /* 5226f6c7006SSage Weil * Resubmit requests pending on the given osd. 5236f6c7006SSage Weil */ 5246f6c7006SSage Weil static void __kick_osd_requests(struct ceph_osd_client *osdc, 5256f6c7006SSage Weil struct ceph_osd *osd) 5266f6c7006SSage Weil { 527a40c4f10SYehuda Sadeh struct ceph_osd_request *req, *nreq; 5286f6c7006SSage Weil int err; 5296f6c7006SSage Weil 5306f6c7006SSage Weil dout("__kick_osd_requests osd%d\n", osd->o_osd); 5316f6c7006SSage Weil err = __reset_osd(osdc, osd); 532685a7555SAlex Elder if (err) 5336f6c7006SSage Weil return; 5346f6c7006SSage Weil 5356f6c7006SSage Weil list_for_each_entry(req, &osd->o_requests, r_osd_item) { 5366f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_unsent); 5376f6c7006SSage Weil dout("requeued %p tid %llu osd%d\n", req, req->r_tid, 5386f6c7006SSage Weil osd->o_osd); 539a40c4f10SYehuda Sadeh if (!req->r_linger) 5406f6c7006SSage Weil req->r_flags |= CEPH_OSD_FLAG_RETRY; 5416f6c7006SSage Weil } 542a40c4f10SYehuda Sadeh 543a40c4f10SYehuda Sadeh list_for_each_entry_safe(req, nreq, &osd->o_linger_requests, 544a40c4f10SYehuda Sadeh r_linger_osd) { 54577f38e0eSSage Weil /* 54677f38e0eSSage Weil * reregister request prior to unregistering linger so 54777f38e0eSSage Weil * that r_osd is preserved. 54877f38e0eSSage Weil */ 54977f38e0eSSage Weil BUG_ON(!list_empty(&req->r_req_lru_item)); 550a40c4f10SYehuda Sadeh __register_request(osdc, req); 55177f38e0eSSage Weil list_add(&req->r_req_lru_item, &osdc->req_unsent); 55277f38e0eSSage Weil list_add(&req->r_osd_item, &req->r_osd->o_requests); 55377f38e0eSSage Weil __unregister_linger_request(osdc, req); 554a40c4f10SYehuda Sadeh dout("requeued lingering %p tid %llu osd%d\n", req, req->r_tid, 555a40c4f10SYehuda Sadeh osd->o_osd); 556a40c4f10SYehuda Sadeh } 5576f6c7006SSage Weil } 5586f6c7006SSage Weil 5593d14c5d2SYehuda Sadeh /* 5603d14c5d2SYehuda Sadeh * If the osd connection drops, we need to resubmit all requests. 5613d14c5d2SYehuda Sadeh */ 5623d14c5d2SYehuda Sadeh static void osd_reset(struct ceph_connection *con) 5633d14c5d2SYehuda Sadeh { 5643d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 5653d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc; 5663d14c5d2SYehuda Sadeh 5673d14c5d2SYehuda Sadeh if (!osd) 5683d14c5d2SYehuda Sadeh return; 5693d14c5d2SYehuda Sadeh dout("osd_reset osd%d\n", osd->o_osd); 5703d14c5d2SYehuda Sadeh osdc = osd->o_osdc; 5713d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 57283aff95eSSage Weil mutex_lock(&osdc->request_mutex); 57383aff95eSSage Weil __kick_osd_requests(osdc, osd); 574f9d25199SAlex Elder __send_queued(osdc); 57583aff95eSSage Weil mutex_unlock(&osdc->request_mutex); 5763d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 5773d14c5d2SYehuda Sadeh } 5783d14c5d2SYehuda Sadeh 5793d14c5d2SYehuda Sadeh /* 5803d14c5d2SYehuda Sadeh * Track open sessions with osds. 5813d14c5d2SYehuda Sadeh */ 582e10006f8SAlex Elder static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum) 5833d14c5d2SYehuda Sadeh { 5843d14c5d2SYehuda Sadeh struct ceph_osd *osd; 5853d14c5d2SYehuda Sadeh 5863d14c5d2SYehuda Sadeh osd = kzalloc(sizeof(*osd), GFP_NOFS); 5873d14c5d2SYehuda Sadeh if (!osd) 5883d14c5d2SYehuda Sadeh return NULL; 5893d14c5d2SYehuda Sadeh 5903d14c5d2SYehuda Sadeh atomic_set(&osd->o_ref, 1); 5913d14c5d2SYehuda Sadeh osd->o_osdc = osdc; 592e10006f8SAlex Elder osd->o_osd = onum; 593f407731dSAlex Elder RB_CLEAR_NODE(&osd->o_node); 5943d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osd->o_requests); 595a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&osd->o_linger_requests); 5963d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osd->o_osd_lru); 5973d14c5d2SYehuda Sadeh osd->o_incarnation = 1; 5983d14c5d2SYehuda Sadeh 599b7a9e5ddSSage Weil ceph_con_init(&osd->o_con, osd, &osd_con_ops, &osdc->client->msgr); 6003d14c5d2SYehuda Sadeh 6013d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osd->o_keepalive_item); 6023d14c5d2SYehuda Sadeh return osd; 6033d14c5d2SYehuda Sadeh } 6043d14c5d2SYehuda Sadeh 6053d14c5d2SYehuda Sadeh static struct ceph_osd *get_osd(struct ceph_osd *osd) 6063d14c5d2SYehuda Sadeh { 6073d14c5d2SYehuda Sadeh if (atomic_inc_not_zero(&osd->o_ref)) { 6083d14c5d2SYehuda Sadeh dout("get_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref)-1, 6093d14c5d2SYehuda Sadeh atomic_read(&osd->o_ref)); 6103d14c5d2SYehuda Sadeh return osd; 6113d14c5d2SYehuda Sadeh } else { 6123d14c5d2SYehuda Sadeh dout("get_osd %p FAIL\n", osd); 6133d14c5d2SYehuda Sadeh return NULL; 6143d14c5d2SYehuda Sadeh } 6153d14c5d2SYehuda Sadeh } 6163d14c5d2SYehuda Sadeh 6173d14c5d2SYehuda Sadeh static void put_osd(struct ceph_osd *osd) 6183d14c5d2SYehuda Sadeh { 6193d14c5d2SYehuda Sadeh dout("put_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref), 6203d14c5d2SYehuda Sadeh atomic_read(&osd->o_ref) - 1); 621a255651dSAlex Elder if (atomic_dec_and_test(&osd->o_ref) && osd->o_auth.authorizer) { 6223d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osd->o_osdc->client->monc.auth; 6233d14c5d2SYehuda Sadeh 624a255651dSAlex Elder if (ac->ops && ac->ops->destroy_authorizer) 6256c4a1915SAlex Elder ac->ops->destroy_authorizer(ac, osd->o_auth.authorizer); 6263d14c5d2SYehuda Sadeh kfree(osd); 6273d14c5d2SYehuda Sadeh } 6283d14c5d2SYehuda Sadeh } 6293d14c5d2SYehuda Sadeh 6303d14c5d2SYehuda Sadeh /* 6313d14c5d2SYehuda Sadeh * remove an osd from our map 6323d14c5d2SYehuda Sadeh */ 6333d14c5d2SYehuda Sadeh static void __remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) 6343d14c5d2SYehuda Sadeh { 6353d14c5d2SYehuda Sadeh dout("__remove_osd %p\n", osd); 6363d14c5d2SYehuda Sadeh BUG_ON(!list_empty(&osd->o_requests)); 6373d14c5d2SYehuda Sadeh rb_erase(&osd->o_node, &osdc->osds); 6383d14c5d2SYehuda Sadeh list_del_init(&osd->o_osd_lru); 6393d14c5d2SYehuda Sadeh ceph_con_close(&osd->o_con); 6403d14c5d2SYehuda Sadeh put_osd(osd); 6413d14c5d2SYehuda Sadeh } 6423d14c5d2SYehuda Sadeh 643aca420bcSSage Weil static void remove_all_osds(struct ceph_osd_client *osdc) 644aca420bcSSage Weil { 645048a9d2dSJiaju Zhang dout("%s %p\n", __func__, osdc); 646aca420bcSSage Weil mutex_lock(&osdc->request_mutex); 647aca420bcSSage Weil while (!RB_EMPTY_ROOT(&osdc->osds)) { 648aca420bcSSage Weil struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds), 649aca420bcSSage Weil struct ceph_osd, o_node); 650aca420bcSSage Weil __remove_osd(osdc, osd); 651aca420bcSSage Weil } 652aca420bcSSage Weil mutex_unlock(&osdc->request_mutex); 653aca420bcSSage Weil } 654aca420bcSSage Weil 6553d14c5d2SYehuda Sadeh static void __move_osd_to_lru(struct ceph_osd_client *osdc, 6563d14c5d2SYehuda Sadeh struct ceph_osd *osd) 6573d14c5d2SYehuda Sadeh { 6583d14c5d2SYehuda Sadeh dout("__move_osd_to_lru %p\n", osd); 6593d14c5d2SYehuda Sadeh BUG_ON(!list_empty(&osd->o_osd_lru)); 6603d14c5d2SYehuda Sadeh list_add_tail(&osd->o_osd_lru, &osdc->osd_lru); 6613d14c5d2SYehuda Sadeh osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl * HZ; 6623d14c5d2SYehuda Sadeh } 6633d14c5d2SYehuda Sadeh 6643d14c5d2SYehuda Sadeh static void __remove_osd_from_lru(struct ceph_osd *osd) 6653d14c5d2SYehuda Sadeh { 6663d14c5d2SYehuda Sadeh dout("__remove_osd_from_lru %p\n", osd); 6673d14c5d2SYehuda Sadeh if (!list_empty(&osd->o_osd_lru)) 6683d14c5d2SYehuda Sadeh list_del_init(&osd->o_osd_lru); 6693d14c5d2SYehuda Sadeh } 6703d14c5d2SYehuda Sadeh 671aca420bcSSage Weil static void remove_old_osds(struct ceph_osd_client *osdc) 6723d14c5d2SYehuda Sadeh { 6733d14c5d2SYehuda Sadeh struct ceph_osd *osd, *nosd; 6743d14c5d2SYehuda Sadeh 6753d14c5d2SYehuda Sadeh dout("__remove_old_osds %p\n", osdc); 6763d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 6773d14c5d2SYehuda Sadeh list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { 678aca420bcSSage Weil if (time_before(jiffies, osd->lru_ttl)) 6793d14c5d2SYehuda Sadeh break; 6803d14c5d2SYehuda Sadeh __remove_osd(osdc, osd); 6813d14c5d2SYehuda Sadeh } 6823d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 6833d14c5d2SYehuda Sadeh } 6843d14c5d2SYehuda Sadeh 6853d14c5d2SYehuda Sadeh /* 6863d14c5d2SYehuda Sadeh * reset osd connect 6873d14c5d2SYehuda Sadeh */ 6883d14c5d2SYehuda Sadeh static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) 6893d14c5d2SYehuda Sadeh { 690c3acb181SAlex Elder struct ceph_entity_addr *peer_addr; 6913d14c5d2SYehuda Sadeh 6923d14c5d2SYehuda Sadeh dout("__reset_osd %p osd%d\n", osd, osd->o_osd); 693a40c4f10SYehuda Sadeh if (list_empty(&osd->o_requests) && 694a40c4f10SYehuda Sadeh list_empty(&osd->o_linger_requests)) { 6953d14c5d2SYehuda Sadeh __remove_osd(osdc, osd); 696c3acb181SAlex Elder 697c3acb181SAlex Elder return -ENODEV; 698c3acb181SAlex Elder } 699c3acb181SAlex Elder 700c3acb181SAlex Elder peer_addr = &osdc->osdmap->osd_addr[osd->o_osd]; 701c3acb181SAlex Elder if (!memcmp(peer_addr, &osd->o_con.peer_addr, sizeof (*peer_addr)) && 7023d14c5d2SYehuda Sadeh !ceph_con_opened(&osd->o_con)) { 703c3acb181SAlex Elder struct ceph_osd_request *req; 704c3acb181SAlex Elder 7053d14c5d2SYehuda Sadeh dout(" osd addr hasn't changed and connection never opened," 7063d14c5d2SYehuda Sadeh " letting msgr retry"); 7073d14c5d2SYehuda Sadeh /* touch each r_stamp for handle_timeout()'s benfit */ 7083d14c5d2SYehuda Sadeh list_for_each_entry(req, &osd->o_requests, r_osd_item) 7093d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 710c3acb181SAlex Elder 711c3acb181SAlex Elder return -EAGAIN; 7123d14c5d2SYehuda Sadeh } 713c3acb181SAlex Elder 714c3acb181SAlex Elder ceph_con_close(&osd->o_con); 715c3acb181SAlex Elder ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, peer_addr); 716c3acb181SAlex Elder osd->o_incarnation++; 717c3acb181SAlex Elder 718c3acb181SAlex Elder return 0; 7193d14c5d2SYehuda Sadeh } 7203d14c5d2SYehuda Sadeh 7213d14c5d2SYehuda Sadeh static void __insert_osd(struct ceph_osd_client *osdc, struct ceph_osd *new) 7223d14c5d2SYehuda Sadeh { 7233d14c5d2SYehuda Sadeh struct rb_node **p = &osdc->osds.rb_node; 7243d14c5d2SYehuda Sadeh struct rb_node *parent = NULL; 7253d14c5d2SYehuda Sadeh struct ceph_osd *osd = NULL; 7263d14c5d2SYehuda Sadeh 727aca420bcSSage Weil dout("__insert_osd %p osd%d\n", new, new->o_osd); 7283d14c5d2SYehuda Sadeh while (*p) { 7293d14c5d2SYehuda Sadeh parent = *p; 7303d14c5d2SYehuda Sadeh osd = rb_entry(parent, struct ceph_osd, o_node); 7313d14c5d2SYehuda Sadeh if (new->o_osd < osd->o_osd) 7323d14c5d2SYehuda Sadeh p = &(*p)->rb_left; 7333d14c5d2SYehuda Sadeh else if (new->o_osd > osd->o_osd) 7343d14c5d2SYehuda Sadeh p = &(*p)->rb_right; 7353d14c5d2SYehuda Sadeh else 7363d14c5d2SYehuda Sadeh BUG(); 7373d14c5d2SYehuda Sadeh } 7383d14c5d2SYehuda Sadeh 7393d14c5d2SYehuda Sadeh rb_link_node(&new->o_node, parent, p); 7403d14c5d2SYehuda Sadeh rb_insert_color(&new->o_node, &osdc->osds); 7413d14c5d2SYehuda Sadeh } 7423d14c5d2SYehuda Sadeh 7433d14c5d2SYehuda Sadeh static struct ceph_osd *__lookup_osd(struct ceph_osd_client *osdc, int o) 7443d14c5d2SYehuda Sadeh { 7453d14c5d2SYehuda Sadeh struct ceph_osd *osd; 7463d14c5d2SYehuda Sadeh struct rb_node *n = osdc->osds.rb_node; 7473d14c5d2SYehuda Sadeh 7483d14c5d2SYehuda Sadeh while (n) { 7493d14c5d2SYehuda Sadeh osd = rb_entry(n, struct ceph_osd, o_node); 7503d14c5d2SYehuda Sadeh if (o < osd->o_osd) 7513d14c5d2SYehuda Sadeh n = n->rb_left; 7523d14c5d2SYehuda Sadeh else if (o > osd->o_osd) 7533d14c5d2SYehuda Sadeh n = n->rb_right; 7543d14c5d2SYehuda Sadeh else 7553d14c5d2SYehuda Sadeh return osd; 7563d14c5d2SYehuda Sadeh } 7573d14c5d2SYehuda Sadeh return NULL; 7583d14c5d2SYehuda Sadeh } 7593d14c5d2SYehuda Sadeh 7603d14c5d2SYehuda Sadeh static void __schedule_osd_timeout(struct ceph_osd_client *osdc) 7613d14c5d2SYehuda Sadeh { 7623d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->timeout_work, 7633d14c5d2SYehuda Sadeh osdc->client->options->osd_keepalive_timeout * HZ); 7643d14c5d2SYehuda Sadeh } 7653d14c5d2SYehuda Sadeh 7663d14c5d2SYehuda Sadeh static void __cancel_osd_timeout(struct ceph_osd_client *osdc) 7673d14c5d2SYehuda Sadeh { 7683d14c5d2SYehuda Sadeh cancel_delayed_work(&osdc->timeout_work); 7693d14c5d2SYehuda Sadeh } 7703d14c5d2SYehuda Sadeh 7713d14c5d2SYehuda Sadeh /* 7723d14c5d2SYehuda Sadeh * Register request, assign tid. If this is the first request, set up 7733d14c5d2SYehuda Sadeh * the timeout event. 7743d14c5d2SYehuda Sadeh */ 775a40c4f10SYehuda Sadeh static void __register_request(struct ceph_osd_client *osdc, 7763d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 7773d14c5d2SYehuda Sadeh { 7783d14c5d2SYehuda Sadeh req->r_tid = ++osdc->last_tid; 7793d14c5d2SYehuda Sadeh req->r_request->hdr.tid = cpu_to_le64(req->r_tid); 78077f38e0eSSage Weil dout("__register_request %p tid %lld\n", req, req->r_tid); 7813d14c5d2SYehuda Sadeh __insert_request(osdc, req); 7823d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 7833d14c5d2SYehuda Sadeh osdc->num_requests++; 7843d14c5d2SYehuda Sadeh if (osdc->num_requests == 1) { 7853d14c5d2SYehuda Sadeh dout(" first request, scheduling timeout\n"); 7863d14c5d2SYehuda Sadeh __schedule_osd_timeout(osdc); 7873d14c5d2SYehuda Sadeh } 788a40c4f10SYehuda Sadeh } 789a40c4f10SYehuda Sadeh 790a40c4f10SYehuda Sadeh static void register_request(struct ceph_osd_client *osdc, 791a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 792a40c4f10SYehuda Sadeh { 793a40c4f10SYehuda Sadeh mutex_lock(&osdc->request_mutex); 794a40c4f10SYehuda Sadeh __register_request(osdc, req); 7953d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 7963d14c5d2SYehuda Sadeh } 7973d14c5d2SYehuda Sadeh 7983d14c5d2SYehuda Sadeh /* 7993d14c5d2SYehuda Sadeh * called under osdc->request_mutex 8003d14c5d2SYehuda Sadeh */ 8013d14c5d2SYehuda Sadeh static void __unregister_request(struct ceph_osd_client *osdc, 8023d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 8033d14c5d2SYehuda Sadeh { 80435f9f8a0SSage Weil if (RB_EMPTY_NODE(&req->r_node)) { 80535f9f8a0SSage Weil dout("__unregister_request %p tid %lld not registered\n", 80635f9f8a0SSage Weil req, req->r_tid); 80735f9f8a0SSage Weil return; 80835f9f8a0SSage Weil } 80935f9f8a0SSage Weil 8103d14c5d2SYehuda Sadeh dout("__unregister_request %p tid %lld\n", req, req->r_tid); 8113d14c5d2SYehuda Sadeh rb_erase(&req->r_node, &osdc->requests); 8123d14c5d2SYehuda Sadeh osdc->num_requests--; 8133d14c5d2SYehuda Sadeh 8143d14c5d2SYehuda Sadeh if (req->r_osd) { 8153d14c5d2SYehuda Sadeh /* make sure the original request isn't in flight. */ 8166740a845SAlex Elder ceph_msg_revoke(req->r_request); 8173d14c5d2SYehuda Sadeh 8183d14c5d2SYehuda Sadeh list_del_init(&req->r_osd_item); 819a40c4f10SYehuda Sadeh if (list_empty(&req->r_osd->o_requests) && 820a40c4f10SYehuda Sadeh list_empty(&req->r_osd->o_linger_requests)) { 821a40c4f10SYehuda Sadeh dout("moving osd to %p lru\n", req->r_osd); 8223d14c5d2SYehuda Sadeh __move_osd_to_lru(osdc, req->r_osd); 823a40c4f10SYehuda Sadeh } 824fbdb9190SSage Weil if (list_empty(&req->r_linger_item)) 8253d14c5d2SYehuda Sadeh req->r_osd = NULL; 8263d14c5d2SYehuda Sadeh } 8273d14c5d2SYehuda Sadeh 8287d5f2481SAlex Elder list_del_init(&req->r_req_lru_item); 8293d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 8303d14c5d2SYehuda Sadeh 8313d14c5d2SYehuda Sadeh if (osdc->num_requests == 0) { 8323d14c5d2SYehuda Sadeh dout(" no requests, canceling timeout\n"); 8333d14c5d2SYehuda Sadeh __cancel_osd_timeout(osdc); 8343d14c5d2SYehuda Sadeh } 8353d14c5d2SYehuda Sadeh } 8363d14c5d2SYehuda Sadeh 8373d14c5d2SYehuda Sadeh /* 8383d14c5d2SYehuda Sadeh * Cancel a previously queued request message 8393d14c5d2SYehuda Sadeh */ 8403d14c5d2SYehuda Sadeh static void __cancel_request(struct ceph_osd_request *req) 8413d14c5d2SYehuda Sadeh { 8423d14c5d2SYehuda Sadeh if (req->r_sent && req->r_osd) { 8436740a845SAlex Elder ceph_msg_revoke(req->r_request); 8443d14c5d2SYehuda Sadeh req->r_sent = 0; 8453d14c5d2SYehuda Sadeh } 8463d14c5d2SYehuda Sadeh } 8473d14c5d2SYehuda Sadeh 848a40c4f10SYehuda Sadeh static void __register_linger_request(struct ceph_osd_client *osdc, 849a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 850a40c4f10SYehuda Sadeh { 851a40c4f10SYehuda Sadeh dout("__register_linger_request %p\n", req); 852a40c4f10SYehuda Sadeh list_add_tail(&req->r_linger_item, &osdc->req_linger); 8536194ea89SSage Weil if (req->r_osd) 8546194ea89SSage Weil list_add_tail(&req->r_linger_osd, 8556194ea89SSage Weil &req->r_osd->o_linger_requests); 856a40c4f10SYehuda Sadeh } 857a40c4f10SYehuda Sadeh 858a40c4f10SYehuda Sadeh static void __unregister_linger_request(struct ceph_osd_client *osdc, 859a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 860a40c4f10SYehuda Sadeh { 861a40c4f10SYehuda Sadeh dout("__unregister_linger_request %p\n", req); 862a40c4f10SYehuda Sadeh list_del_init(&req->r_linger_item); 86361c74035SAlex Elder if (req->r_osd) { 864a40c4f10SYehuda Sadeh list_del_init(&req->r_linger_osd); 865a40c4f10SYehuda Sadeh 866a40c4f10SYehuda Sadeh if (list_empty(&req->r_osd->o_requests) && 867a40c4f10SYehuda Sadeh list_empty(&req->r_osd->o_linger_requests)) { 868a40c4f10SYehuda Sadeh dout("moving osd to %p lru\n", req->r_osd); 869a40c4f10SYehuda Sadeh __move_osd_to_lru(osdc, req->r_osd); 870a40c4f10SYehuda Sadeh } 871fbdb9190SSage Weil if (list_empty(&req->r_osd_item)) 872a40c4f10SYehuda Sadeh req->r_osd = NULL; 873a40c4f10SYehuda Sadeh } 874a40c4f10SYehuda Sadeh } 875a40c4f10SYehuda Sadeh 876a40c4f10SYehuda Sadeh void ceph_osdc_unregister_linger_request(struct ceph_osd_client *osdc, 877a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 878a40c4f10SYehuda Sadeh { 879a40c4f10SYehuda Sadeh mutex_lock(&osdc->request_mutex); 880a40c4f10SYehuda Sadeh if (req->r_linger) { 881a40c4f10SYehuda Sadeh __unregister_linger_request(osdc, req); 882a40c4f10SYehuda Sadeh ceph_osdc_put_request(req); 883a40c4f10SYehuda Sadeh } 884a40c4f10SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 885a40c4f10SYehuda Sadeh } 886a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_unregister_linger_request); 887a40c4f10SYehuda Sadeh 888a40c4f10SYehuda Sadeh void ceph_osdc_set_request_linger(struct ceph_osd_client *osdc, 889a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 890a40c4f10SYehuda Sadeh { 891a40c4f10SYehuda Sadeh if (!req->r_linger) { 892a40c4f10SYehuda Sadeh dout("set_request_linger %p\n", req); 893a40c4f10SYehuda Sadeh req->r_linger = 1; 894a40c4f10SYehuda Sadeh /* 895a40c4f10SYehuda Sadeh * caller is now responsible for calling 896a40c4f10SYehuda Sadeh * unregister_linger_request 897a40c4f10SYehuda Sadeh */ 898a40c4f10SYehuda Sadeh ceph_osdc_get_request(req); 899a40c4f10SYehuda Sadeh } 900a40c4f10SYehuda Sadeh } 901a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_set_request_linger); 902a40c4f10SYehuda Sadeh 9033d14c5d2SYehuda Sadeh /* 9043d14c5d2SYehuda Sadeh * Pick an osd (the first 'up' osd in the pg), allocate the osd struct 9053d14c5d2SYehuda Sadeh * (as needed), and set the request r_osd appropriately. If there is 90625985edcSLucas De Marchi * no up osd, set r_osd to NULL. Move the request to the appropriate list 9076f6c7006SSage Weil * (unsent, homeless) or leave on in-flight lru. 9083d14c5d2SYehuda Sadeh * 9093d14c5d2SYehuda Sadeh * Return 0 if unchanged, 1 if changed, or negative on error. 9103d14c5d2SYehuda Sadeh * 9113d14c5d2SYehuda Sadeh * Caller should hold map_sem for read and request_mutex. 9123d14c5d2SYehuda Sadeh */ 9136f6c7006SSage Weil static int __map_request(struct ceph_osd_client *osdc, 91438d6453cSSage Weil struct ceph_osd_request *req, int force_resend) 9153d14c5d2SYehuda Sadeh { 9163d14c5d2SYehuda Sadeh struct ceph_osd_request_head *reqhead = req->r_request->front.iov_base; 9173d14c5d2SYehuda Sadeh struct ceph_pg pgid; 9183d14c5d2SYehuda Sadeh int acting[CEPH_PG_MAX_SIZE]; 9193d14c5d2SYehuda Sadeh int o = -1, num = 0; 9203d14c5d2SYehuda Sadeh int err; 9213d14c5d2SYehuda Sadeh 9226f6c7006SSage Weil dout("map_request %p tid %lld\n", req, req->r_tid); 9233d14c5d2SYehuda Sadeh err = ceph_calc_object_layout(&reqhead->layout, req->r_oid, 9243d14c5d2SYehuda Sadeh &req->r_file_layout, osdc->osdmap); 9256f6c7006SSage Weil if (err) { 9266f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_notarget); 9273d14c5d2SYehuda Sadeh return err; 9286f6c7006SSage Weil } 9293d14c5d2SYehuda Sadeh pgid = reqhead->layout.ol_pgid; 9303d14c5d2SYehuda Sadeh req->r_pgid = pgid; 9313d14c5d2SYehuda Sadeh 9323d14c5d2SYehuda Sadeh err = ceph_calc_pg_acting(osdc->osdmap, pgid, acting); 9333d14c5d2SYehuda Sadeh if (err > 0) { 9343d14c5d2SYehuda Sadeh o = acting[0]; 9353d14c5d2SYehuda Sadeh num = err; 9363d14c5d2SYehuda Sadeh } 9373d14c5d2SYehuda Sadeh 93838d6453cSSage Weil if ((!force_resend && 93938d6453cSSage Weil req->r_osd && req->r_osd->o_osd == o && 9403d14c5d2SYehuda Sadeh req->r_sent >= req->r_osd->o_incarnation && 9413d14c5d2SYehuda Sadeh req->r_num_pg_osds == num && 9423d14c5d2SYehuda Sadeh memcmp(req->r_pg_osds, acting, sizeof(acting[0])*num) == 0) || 9433d14c5d2SYehuda Sadeh (req->r_osd == NULL && o == -1)) 9443d14c5d2SYehuda Sadeh return 0; /* no change */ 9453d14c5d2SYehuda Sadeh 9466f6c7006SSage Weil dout("map_request tid %llu pgid %d.%x osd%d (was osd%d)\n", 9473d14c5d2SYehuda Sadeh req->r_tid, le32_to_cpu(pgid.pool), le16_to_cpu(pgid.ps), o, 9483d14c5d2SYehuda Sadeh req->r_osd ? req->r_osd->o_osd : -1); 9493d14c5d2SYehuda Sadeh 9503d14c5d2SYehuda Sadeh /* record full pg acting set */ 9513d14c5d2SYehuda Sadeh memcpy(req->r_pg_osds, acting, sizeof(acting[0]) * num); 9523d14c5d2SYehuda Sadeh req->r_num_pg_osds = num; 9533d14c5d2SYehuda Sadeh 9543d14c5d2SYehuda Sadeh if (req->r_osd) { 9553d14c5d2SYehuda Sadeh __cancel_request(req); 9563d14c5d2SYehuda Sadeh list_del_init(&req->r_osd_item); 9573d14c5d2SYehuda Sadeh req->r_osd = NULL; 9583d14c5d2SYehuda Sadeh } 9593d14c5d2SYehuda Sadeh 9603d14c5d2SYehuda Sadeh req->r_osd = __lookup_osd(osdc, o); 9613d14c5d2SYehuda Sadeh if (!req->r_osd && o >= 0) { 9623d14c5d2SYehuda Sadeh err = -ENOMEM; 963e10006f8SAlex Elder req->r_osd = create_osd(osdc, o); 9646f6c7006SSage Weil if (!req->r_osd) { 9656f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_notarget); 9663d14c5d2SYehuda Sadeh goto out; 9676f6c7006SSage Weil } 9683d14c5d2SYehuda Sadeh 9696f6c7006SSage Weil dout("map_request osd %p is osd%d\n", req->r_osd, o); 9703d14c5d2SYehuda Sadeh __insert_osd(osdc, req->r_osd); 9713d14c5d2SYehuda Sadeh 972b7a9e5ddSSage Weil ceph_con_open(&req->r_osd->o_con, 973b7a9e5ddSSage Weil CEPH_ENTITY_TYPE_OSD, o, 974b7a9e5ddSSage Weil &osdc->osdmap->osd_addr[o]); 9753d14c5d2SYehuda Sadeh } 9763d14c5d2SYehuda Sadeh 9773d14c5d2SYehuda Sadeh if (req->r_osd) { 9783d14c5d2SYehuda Sadeh __remove_osd_from_lru(req->r_osd); 9793d14c5d2SYehuda Sadeh list_add(&req->r_osd_item, &req->r_osd->o_requests); 9806f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_unsent); 9816f6c7006SSage Weil } else { 9826f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_notarget); 9833d14c5d2SYehuda Sadeh } 9843d14c5d2SYehuda Sadeh err = 1; /* osd or pg changed */ 9853d14c5d2SYehuda Sadeh 9863d14c5d2SYehuda Sadeh out: 9873d14c5d2SYehuda Sadeh return err; 9883d14c5d2SYehuda Sadeh } 9893d14c5d2SYehuda Sadeh 9903d14c5d2SYehuda Sadeh /* 9913d14c5d2SYehuda Sadeh * caller should hold map_sem (for read) and request_mutex 9923d14c5d2SYehuda Sadeh */ 99356e925b6SSage Weil static void __send_request(struct ceph_osd_client *osdc, 9943d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 9953d14c5d2SYehuda Sadeh { 9963d14c5d2SYehuda Sadeh struct ceph_osd_request_head *reqhead; 9973d14c5d2SYehuda Sadeh 9983d14c5d2SYehuda Sadeh dout("send_request %p tid %llu to osd%d flags %d\n", 9993d14c5d2SYehuda Sadeh req, req->r_tid, req->r_osd->o_osd, req->r_flags); 10003d14c5d2SYehuda Sadeh 10013d14c5d2SYehuda Sadeh reqhead = req->r_request->front.iov_base; 10023d14c5d2SYehuda Sadeh reqhead->osdmap_epoch = cpu_to_le32(osdc->osdmap->epoch); 10033d14c5d2SYehuda Sadeh reqhead->flags |= cpu_to_le32(req->r_flags); /* e.g., RETRY */ 10043d14c5d2SYehuda Sadeh reqhead->reassert_version = req->r_reassert_version; 10053d14c5d2SYehuda Sadeh 10063d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 10073d14c5d2SYehuda Sadeh list_move_tail(&req->r_req_lru_item, &osdc->req_lru); 10083d14c5d2SYehuda Sadeh 10093d14c5d2SYehuda Sadeh ceph_msg_get(req->r_request); /* send consumes a ref */ 10103d14c5d2SYehuda Sadeh ceph_con_send(&req->r_osd->o_con, req->r_request); 10113d14c5d2SYehuda Sadeh req->r_sent = req->r_osd->o_incarnation; 10123d14c5d2SYehuda Sadeh } 10133d14c5d2SYehuda Sadeh 10143d14c5d2SYehuda Sadeh /* 10156f6c7006SSage Weil * Send any requests in the queue (req_unsent). 10166f6c7006SSage Weil */ 1017f9d25199SAlex Elder static void __send_queued(struct ceph_osd_client *osdc) 10186f6c7006SSage Weil { 10196f6c7006SSage Weil struct ceph_osd_request *req, *tmp; 10206f6c7006SSage Weil 1021f9d25199SAlex Elder dout("__send_queued\n"); 1022f9d25199SAlex Elder list_for_each_entry_safe(req, tmp, &osdc->req_unsent, r_req_lru_item) 10236f6c7006SSage Weil __send_request(osdc, req); 10246f6c7006SSage Weil } 10256f6c7006SSage Weil 10266f6c7006SSage Weil /* 10273d14c5d2SYehuda Sadeh * Timeout callback, called every N seconds when 1 or more osd 10283d14c5d2SYehuda Sadeh * requests has been active for more than N seconds. When this 10293d14c5d2SYehuda Sadeh * happens, we ping all OSDs with requests who have timed out to 10303d14c5d2SYehuda Sadeh * ensure any communications channel reset is detected. Reset the 10313d14c5d2SYehuda Sadeh * request timeouts another N seconds in the future as we go. 10323d14c5d2SYehuda Sadeh * Reschedule the timeout event another N seconds in future (unless 10333d14c5d2SYehuda Sadeh * there are no open requests). 10343d14c5d2SYehuda Sadeh */ 10353d14c5d2SYehuda Sadeh static void handle_timeout(struct work_struct *work) 10363d14c5d2SYehuda Sadeh { 10373d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 10383d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, timeout_work.work); 103983aff95eSSage Weil struct ceph_osd_request *req; 10403d14c5d2SYehuda Sadeh struct ceph_osd *osd; 10413d14c5d2SYehuda Sadeh unsigned long keepalive = 10423d14c5d2SYehuda Sadeh osdc->client->options->osd_keepalive_timeout * HZ; 10433d14c5d2SYehuda Sadeh struct list_head slow_osds; 10443d14c5d2SYehuda Sadeh dout("timeout\n"); 10453d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 10463d14c5d2SYehuda Sadeh 10473d14c5d2SYehuda Sadeh ceph_monc_request_next_osdmap(&osdc->client->monc); 10483d14c5d2SYehuda Sadeh 10493d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 10503d14c5d2SYehuda Sadeh 10513d14c5d2SYehuda Sadeh /* 10523d14c5d2SYehuda Sadeh * ping osds that are a bit slow. this ensures that if there 10533d14c5d2SYehuda Sadeh * is a break in the TCP connection we will notice, and reopen 10543d14c5d2SYehuda Sadeh * a connection with that osd (from the fault callback). 10553d14c5d2SYehuda Sadeh */ 10563d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&slow_osds); 10573d14c5d2SYehuda Sadeh list_for_each_entry(req, &osdc->req_lru, r_req_lru_item) { 10583d14c5d2SYehuda Sadeh if (time_before(jiffies, req->r_stamp + keepalive)) 10593d14c5d2SYehuda Sadeh break; 10603d14c5d2SYehuda Sadeh 10613d14c5d2SYehuda Sadeh osd = req->r_osd; 10623d14c5d2SYehuda Sadeh BUG_ON(!osd); 10633d14c5d2SYehuda Sadeh dout(" tid %llu is slow, will send keepalive on osd%d\n", 10643d14c5d2SYehuda Sadeh req->r_tid, osd->o_osd); 10653d14c5d2SYehuda Sadeh list_move_tail(&osd->o_keepalive_item, &slow_osds); 10663d14c5d2SYehuda Sadeh } 10673d14c5d2SYehuda Sadeh while (!list_empty(&slow_osds)) { 10683d14c5d2SYehuda Sadeh osd = list_entry(slow_osds.next, struct ceph_osd, 10693d14c5d2SYehuda Sadeh o_keepalive_item); 10703d14c5d2SYehuda Sadeh list_del_init(&osd->o_keepalive_item); 10713d14c5d2SYehuda Sadeh ceph_con_keepalive(&osd->o_con); 10723d14c5d2SYehuda Sadeh } 10733d14c5d2SYehuda Sadeh 10743d14c5d2SYehuda Sadeh __schedule_osd_timeout(osdc); 1075f9d25199SAlex Elder __send_queued(osdc); 10763d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 10773d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 10783d14c5d2SYehuda Sadeh } 10793d14c5d2SYehuda Sadeh 10803d14c5d2SYehuda Sadeh static void handle_osds_timeout(struct work_struct *work) 10813d14c5d2SYehuda Sadeh { 10823d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 10833d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, 10843d14c5d2SYehuda Sadeh osds_timeout_work.work); 10853d14c5d2SYehuda Sadeh unsigned long delay = 10863d14c5d2SYehuda Sadeh osdc->client->options->osd_idle_ttl * HZ >> 2; 10873d14c5d2SYehuda Sadeh 10883d14c5d2SYehuda Sadeh dout("osds timeout\n"); 10893d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 1090aca420bcSSage Weil remove_old_osds(osdc); 10913d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 10923d14c5d2SYehuda Sadeh 10933d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->osds_timeout_work, 10943d14c5d2SYehuda Sadeh round_jiffies_relative(delay)); 10953d14c5d2SYehuda Sadeh } 10963d14c5d2SYehuda Sadeh 109725845472SSage Weil static void complete_request(struct ceph_osd_request *req) 109825845472SSage Weil { 109925845472SSage Weil if (req->r_safe_callback) 110025845472SSage Weil req->r_safe_callback(req, NULL); 110125845472SSage Weil complete_all(&req->r_safe_completion); /* fsync waiter */ 110225845472SSage Weil } 110325845472SSage Weil 11043d14c5d2SYehuda Sadeh /* 11053d14c5d2SYehuda Sadeh * handle osd op reply. either call the callback if it is specified, 11063d14c5d2SYehuda Sadeh * or do the completion to wake up the waiting thread. 11073d14c5d2SYehuda Sadeh */ 11083d14c5d2SYehuda Sadeh static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg, 11093d14c5d2SYehuda Sadeh struct ceph_connection *con) 11103d14c5d2SYehuda Sadeh { 11113d14c5d2SYehuda Sadeh struct ceph_osd_reply_head *rhead = msg->front.iov_base; 11123d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 11133d14c5d2SYehuda Sadeh u64 tid; 11143d14c5d2SYehuda Sadeh int numops, object_len, flags; 11153d14c5d2SYehuda Sadeh s32 result; 11163d14c5d2SYehuda Sadeh 11173d14c5d2SYehuda Sadeh tid = le64_to_cpu(msg->hdr.tid); 11183d14c5d2SYehuda Sadeh if (msg->front.iov_len < sizeof(*rhead)) 11193d14c5d2SYehuda Sadeh goto bad; 11203d14c5d2SYehuda Sadeh numops = le32_to_cpu(rhead->num_ops); 11213d14c5d2SYehuda Sadeh object_len = le32_to_cpu(rhead->object_len); 11223d14c5d2SYehuda Sadeh result = le32_to_cpu(rhead->result); 11233d14c5d2SYehuda Sadeh if (msg->front.iov_len != sizeof(*rhead) + object_len + 11243d14c5d2SYehuda Sadeh numops * sizeof(struct ceph_osd_op)) 11253d14c5d2SYehuda Sadeh goto bad; 11263d14c5d2SYehuda Sadeh dout("handle_reply %p tid %llu result %d\n", msg, tid, (int)result); 11273d14c5d2SYehuda Sadeh /* lookup */ 11283d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 11293d14c5d2SYehuda Sadeh req = __lookup_request(osdc, tid); 11303d14c5d2SYehuda Sadeh if (req == NULL) { 11313d14c5d2SYehuda Sadeh dout("handle_reply tid %llu dne\n", tid); 11323d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 11333d14c5d2SYehuda Sadeh return; 11343d14c5d2SYehuda Sadeh } 11353d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 11363d14c5d2SYehuda Sadeh flags = le32_to_cpu(rhead->flags); 11373d14c5d2SYehuda Sadeh 11383d14c5d2SYehuda Sadeh /* 11393d14c5d2SYehuda Sadeh * if this connection filled our message, drop our reference now, to 11403d14c5d2SYehuda Sadeh * avoid a (safe but slower) revoke later. 11413d14c5d2SYehuda Sadeh */ 11423d14c5d2SYehuda Sadeh if (req->r_con_filling_msg == con && req->r_reply == msg) { 11433d14c5d2SYehuda Sadeh dout(" dropping con_filling_msg ref %p\n", con); 11443d14c5d2SYehuda Sadeh req->r_con_filling_msg = NULL; 11450d47766fSSage Weil con->ops->put(con); 11463d14c5d2SYehuda Sadeh } 11473d14c5d2SYehuda Sadeh 11483d14c5d2SYehuda Sadeh if (!req->r_got_reply) { 114995c96174SEric Dumazet unsigned int bytes; 11503d14c5d2SYehuda Sadeh 11513d14c5d2SYehuda Sadeh req->r_result = le32_to_cpu(rhead->result); 11523d14c5d2SYehuda Sadeh bytes = le32_to_cpu(msg->hdr.data_len); 11533d14c5d2SYehuda Sadeh dout("handle_reply result %d bytes %d\n", req->r_result, 11543d14c5d2SYehuda Sadeh bytes); 11553d14c5d2SYehuda Sadeh if (req->r_result == 0) 11563d14c5d2SYehuda Sadeh req->r_result = bytes; 11573d14c5d2SYehuda Sadeh 11583d14c5d2SYehuda Sadeh /* in case this is a write and we need to replay, */ 11593d14c5d2SYehuda Sadeh req->r_reassert_version = rhead->reassert_version; 11603d14c5d2SYehuda Sadeh 11613d14c5d2SYehuda Sadeh req->r_got_reply = 1; 11623d14c5d2SYehuda Sadeh } else if ((flags & CEPH_OSD_FLAG_ONDISK) == 0) { 11633d14c5d2SYehuda Sadeh dout("handle_reply tid %llu dup ack\n", tid); 11643d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 11653d14c5d2SYehuda Sadeh goto done; 11663d14c5d2SYehuda Sadeh } 11673d14c5d2SYehuda Sadeh 11683d14c5d2SYehuda Sadeh dout("handle_reply tid %llu flags %d\n", tid, flags); 11693d14c5d2SYehuda Sadeh 1170a40c4f10SYehuda Sadeh if (req->r_linger && (flags & CEPH_OSD_FLAG_ONDISK)) 1171a40c4f10SYehuda Sadeh __register_linger_request(osdc, req); 1172a40c4f10SYehuda Sadeh 11733d14c5d2SYehuda Sadeh /* either this is a read, or we got the safe response */ 11743d14c5d2SYehuda Sadeh if (result < 0 || 11753d14c5d2SYehuda Sadeh (flags & CEPH_OSD_FLAG_ONDISK) || 11763d14c5d2SYehuda Sadeh ((flags & CEPH_OSD_FLAG_WRITE) == 0)) 11773d14c5d2SYehuda Sadeh __unregister_request(osdc, req); 11783d14c5d2SYehuda Sadeh 11793d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 11803d14c5d2SYehuda Sadeh 11813d14c5d2SYehuda Sadeh if (req->r_callback) 11823d14c5d2SYehuda Sadeh req->r_callback(req, msg); 11833d14c5d2SYehuda Sadeh else 11843d14c5d2SYehuda Sadeh complete_all(&req->r_completion); 11853d14c5d2SYehuda Sadeh 118625845472SSage Weil if (flags & CEPH_OSD_FLAG_ONDISK) 118725845472SSage Weil complete_request(req); 11883d14c5d2SYehuda Sadeh 11893d14c5d2SYehuda Sadeh done: 1190a40c4f10SYehuda Sadeh dout("req=%p req->r_linger=%d\n", req, req->r_linger); 11913d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 11923d14c5d2SYehuda Sadeh return; 11933d14c5d2SYehuda Sadeh 11943d14c5d2SYehuda Sadeh bad: 11953d14c5d2SYehuda Sadeh pr_err("corrupt osd_op_reply got %d %d expected %d\n", 11963d14c5d2SYehuda Sadeh (int)msg->front.iov_len, le32_to_cpu(msg->hdr.front_len), 11973d14c5d2SYehuda Sadeh (int)sizeof(*rhead)); 11983d14c5d2SYehuda Sadeh ceph_msg_dump(msg); 11993d14c5d2SYehuda Sadeh } 12003d14c5d2SYehuda Sadeh 12016f6c7006SSage Weil static void reset_changed_osds(struct ceph_osd_client *osdc) 12023d14c5d2SYehuda Sadeh { 12033d14c5d2SYehuda Sadeh struct rb_node *p, *n; 12043d14c5d2SYehuda Sadeh 12053d14c5d2SYehuda Sadeh for (p = rb_first(&osdc->osds); p; p = n) { 12066f6c7006SSage Weil struct ceph_osd *osd = rb_entry(p, struct ceph_osd, o_node); 12073d14c5d2SYehuda Sadeh 12083d14c5d2SYehuda Sadeh n = rb_next(p); 12093d14c5d2SYehuda Sadeh if (!ceph_osd_is_up(osdc->osdmap, osd->o_osd) || 12103d14c5d2SYehuda Sadeh memcmp(&osd->o_con.peer_addr, 12113d14c5d2SYehuda Sadeh ceph_osd_addr(osdc->osdmap, 12123d14c5d2SYehuda Sadeh osd->o_osd), 12133d14c5d2SYehuda Sadeh sizeof(struct ceph_entity_addr)) != 0) 12143d14c5d2SYehuda Sadeh __reset_osd(osdc, osd); 12153d14c5d2SYehuda Sadeh } 12163d14c5d2SYehuda Sadeh } 12173d14c5d2SYehuda Sadeh 12183d14c5d2SYehuda Sadeh /* 12196f6c7006SSage Weil * Requeue requests whose mapping to an OSD has changed. If requests map to 12206f6c7006SSage Weil * no osd, request a new map. 12213d14c5d2SYehuda Sadeh * 1222e6d50f67SAlex Elder * Caller should hold map_sem for read. 12233d14c5d2SYehuda Sadeh */ 122438d6453cSSage Weil static void kick_requests(struct ceph_osd_client *osdc, int force_resend) 12253d14c5d2SYehuda Sadeh { 1226a40c4f10SYehuda Sadeh struct ceph_osd_request *req, *nreq; 12276f6c7006SSage Weil struct rb_node *p; 12286f6c7006SSage Weil int needmap = 0; 12296f6c7006SSage Weil int err; 12303d14c5d2SYehuda Sadeh 123138d6453cSSage Weil dout("kick_requests %s\n", force_resend ? " (force resend)" : ""); 12323d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 12336194ea89SSage Weil for (p = rb_first(&osdc->requests); p; ) { 12346f6c7006SSage Weil req = rb_entry(p, struct ceph_osd_request, r_node); 12356194ea89SSage Weil p = rb_next(p); 1236ab60b16dSAlex Elder 1237ab60b16dSAlex Elder /* 1238ab60b16dSAlex Elder * For linger requests that have not yet been 1239ab60b16dSAlex Elder * registered, move them to the linger list; they'll 1240ab60b16dSAlex Elder * be sent to the osd in the loop below. Unregister 1241ab60b16dSAlex Elder * the request before re-registering it as a linger 1242ab60b16dSAlex Elder * request to ensure the __map_request() below 1243ab60b16dSAlex Elder * will decide it needs to be sent. 1244ab60b16dSAlex Elder */ 1245ab60b16dSAlex Elder if (req->r_linger && list_empty(&req->r_linger_item)) { 1246ab60b16dSAlex Elder dout("%p tid %llu restart on osd%d\n", 1247ab60b16dSAlex Elder req, req->r_tid, 1248ab60b16dSAlex Elder req->r_osd ? req->r_osd->o_osd : -1); 1249ab60b16dSAlex Elder __unregister_request(osdc, req); 1250ab60b16dSAlex Elder __register_linger_request(osdc, req); 1251ab60b16dSAlex Elder continue; 1252ab60b16dSAlex Elder } 1253ab60b16dSAlex Elder 125438d6453cSSage Weil err = __map_request(osdc, req, force_resend); 12556f6c7006SSage Weil if (err < 0) 12566f6c7006SSage Weil continue; /* error */ 12576f6c7006SSage Weil if (req->r_osd == NULL) { 12586f6c7006SSage Weil dout("%p tid %llu maps to no osd\n", req, req->r_tid); 12596f6c7006SSage Weil needmap++; /* request a newer map */ 12606f6c7006SSage Weil } else if (err > 0) { 12616194ea89SSage Weil if (!req->r_linger) { 12626194ea89SSage Weil dout("%p tid %llu requeued on osd%d\n", req, 12636194ea89SSage Weil req->r_tid, 12646f6c7006SSage Weil req->r_osd ? req->r_osd->o_osd : -1); 12656f6c7006SSage Weil req->r_flags |= CEPH_OSD_FLAG_RETRY; 12666f6c7006SSage Weil } 12676f6c7006SSage Weil } 12686194ea89SSage Weil } 1269a40c4f10SYehuda Sadeh 1270a40c4f10SYehuda Sadeh list_for_each_entry_safe(req, nreq, &osdc->req_linger, 1271a40c4f10SYehuda Sadeh r_linger_item) { 1272a40c4f10SYehuda Sadeh dout("linger req=%p req->r_osd=%p\n", req, req->r_osd); 1273a40c4f10SYehuda Sadeh 127438d6453cSSage Weil err = __map_request(osdc, req, force_resend); 1275ab60b16dSAlex Elder dout("__map_request returned %d\n", err); 1276a40c4f10SYehuda Sadeh if (err == 0) 1277a40c4f10SYehuda Sadeh continue; /* no change and no osd was specified */ 1278a40c4f10SYehuda Sadeh if (err < 0) 1279a40c4f10SYehuda Sadeh continue; /* hrm! */ 1280a40c4f10SYehuda Sadeh if (req->r_osd == NULL) { 1281a40c4f10SYehuda Sadeh dout("tid %llu maps to no valid osd\n", req->r_tid); 1282a40c4f10SYehuda Sadeh needmap++; /* request a newer map */ 1283a40c4f10SYehuda Sadeh continue; 1284a40c4f10SYehuda Sadeh } 1285a40c4f10SYehuda Sadeh 1286a40c4f10SYehuda Sadeh dout("kicking lingering %p tid %llu osd%d\n", req, req->r_tid, 1287a40c4f10SYehuda Sadeh req->r_osd ? req->r_osd->o_osd : -1); 1288a40c4f10SYehuda Sadeh __register_request(osdc, req); 1289c89ce05eSAlex Elder __unregister_linger_request(osdc, req); 1290a40c4f10SYehuda Sadeh } 12913d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 12923d14c5d2SYehuda Sadeh 12933d14c5d2SYehuda Sadeh if (needmap) { 12943d14c5d2SYehuda Sadeh dout("%d requests for down osds, need new map\n", needmap); 12953d14c5d2SYehuda Sadeh ceph_monc_request_next_osdmap(&osdc->client->monc); 12963d14c5d2SYehuda Sadeh } 1297e6d50f67SAlex Elder reset_changed_osds(osdc); 12983d14c5d2SYehuda Sadeh } 12996f6c7006SSage Weil 13006f6c7006SSage Weil 13013d14c5d2SYehuda Sadeh /* 13023d14c5d2SYehuda Sadeh * Process updated osd map. 13033d14c5d2SYehuda Sadeh * 13043d14c5d2SYehuda Sadeh * The message contains any number of incremental and full maps, normally 13053d14c5d2SYehuda Sadeh * indicating some sort of topology change in the cluster. Kick requests 13063d14c5d2SYehuda Sadeh * off to different OSDs as needed. 13073d14c5d2SYehuda Sadeh */ 13083d14c5d2SYehuda Sadeh void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) 13093d14c5d2SYehuda Sadeh { 13103d14c5d2SYehuda Sadeh void *p, *end, *next; 13113d14c5d2SYehuda Sadeh u32 nr_maps, maplen; 13123d14c5d2SYehuda Sadeh u32 epoch; 13133d14c5d2SYehuda Sadeh struct ceph_osdmap *newmap = NULL, *oldmap; 13143d14c5d2SYehuda Sadeh int err; 13153d14c5d2SYehuda Sadeh struct ceph_fsid fsid; 13163d14c5d2SYehuda Sadeh 13173d14c5d2SYehuda Sadeh dout("handle_map have %u\n", osdc->osdmap ? osdc->osdmap->epoch : 0); 13183d14c5d2SYehuda Sadeh p = msg->front.iov_base; 13193d14c5d2SYehuda Sadeh end = p + msg->front.iov_len; 13203d14c5d2SYehuda Sadeh 13213d14c5d2SYehuda Sadeh /* verify fsid */ 13223d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, sizeof(fsid), bad); 13233d14c5d2SYehuda Sadeh ceph_decode_copy(&p, &fsid, sizeof(fsid)); 13243d14c5d2SYehuda Sadeh if (ceph_check_fsid(osdc->client, &fsid) < 0) 13253d14c5d2SYehuda Sadeh return; 13263d14c5d2SYehuda Sadeh 13273d14c5d2SYehuda Sadeh down_write(&osdc->map_sem); 13283d14c5d2SYehuda Sadeh 13293d14c5d2SYehuda Sadeh /* incremental maps */ 13303d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 13313d14c5d2SYehuda Sadeh dout(" %d inc maps\n", nr_maps); 13323d14c5d2SYehuda Sadeh while (nr_maps > 0) { 13333d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 13343d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 13353d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 13363d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 13373d14c5d2SYehuda Sadeh next = p + maplen; 13383d14c5d2SYehuda Sadeh if (osdc->osdmap && osdc->osdmap->epoch+1 == epoch) { 13393d14c5d2SYehuda Sadeh dout("applying incremental map %u len %d\n", 13403d14c5d2SYehuda Sadeh epoch, maplen); 13413d14c5d2SYehuda Sadeh newmap = osdmap_apply_incremental(&p, next, 13423d14c5d2SYehuda Sadeh osdc->osdmap, 134315d9882cSAlex Elder &osdc->client->msgr); 13443d14c5d2SYehuda Sadeh if (IS_ERR(newmap)) { 13453d14c5d2SYehuda Sadeh err = PTR_ERR(newmap); 13463d14c5d2SYehuda Sadeh goto bad; 13473d14c5d2SYehuda Sadeh } 13483d14c5d2SYehuda Sadeh BUG_ON(!newmap); 13493d14c5d2SYehuda Sadeh if (newmap != osdc->osdmap) { 13503d14c5d2SYehuda Sadeh ceph_osdmap_destroy(osdc->osdmap); 13513d14c5d2SYehuda Sadeh osdc->osdmap = newmap; 13523d14c5d2SYehuda Sadeh } 135338d6453cSSage Weil kick_requests(osdc, 0); 13543d14c5d2SYehuda Sadeh } else { 13553d14c5d2SYehuda Sadeh dout("ignoring incremental map %u len %d\n", 13563d14c5d2SYehuda Sadeh epoch, maplen); 13573d14c5d2SYehuda Sadeh } 13583d14c5d2SYehuda Sadeh p = next; 13593d14c5d2SYehuda Sadeh nr_maps--; 13603d14c5d2SYehuda Sadeh } 13613d14c5d2SYehuda Sadeh if (newmap) 13623d14c5d2SYehuda Sadeh goto done; 13633d14c5d2SYehuda Sadeh 13643d14c5d2SYehuda Sadeh /* full maps */ 13653d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 13663d14c5d2SYehuda Sadeh dout(" %d full maps\n", nr_maps); 13673d14c5d2SYehuda Sadeh while (nr_maps) { 13683d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 13693d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 13703d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 13713d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 13723d14c5d2SYehuda Sadeh if (nr_maps > 1) { 13733d14c5d2SYehuda Sadeh dout("skipping non-latest full map %u len %d\n", 13743d14c5d2SYehuda Sadeh epoch, maplen); 13753d14c5d2SYehuda Sadeh } else if (osdc->osdmap && osdc->osdmap->epoch >= epoch) { 13763d14c5d2SYehuda Sadeh dout("skipping full map %u len %d, " 13773d14c5d2SYehuda Sadeh "older than our %u\n", epoch, maplen, 13783d14c5d2SYehuda Sadeh osdc->osdmap->epoch); 13793d14c5d2SYehuda Sadeh } else { 138038d6453cSSage Weil int skipped_map = 0; 138138d6453cSSage Weil 13823d14c5d2SYehuda Sadeh dout("taking full map %u len %d\n", epoch, maplen); 13833d14c5d2SYehuda Sadeh newmap = osdmap_decode(&p, p+maplen); 13843d14c5d2SYehuda Sadeh if (IS_ERR(newmap)) { 13853d14c5d2SYehuda Sadeh err = PTR_ERR(newmap); 13863d14c5d2SYehuda Sadeh goto bad; 13873d14c5d2SYehuda Sadeh } 13883d14c5d2SYehuda Sadeh BUG_ON(!newmap); 13893d14c5d2SYehuda Sadeh oldmap = osdc->osdmap; 13903d14c5d2SYehuda Sadeh osdc->osdmap = newmap; 139138d6453cSSage Weil if (oldmap) { 139238d6453cSSage Weil if (oldmap->epoch + 1 < newmap->epoch) 139338d6453cSSage Weil skipped_map = 1; 13943d14c5d2SYehuda Sadeh ceph_osdmap_destroy(oldmap); 139538d6453cSSage Weil } 139638d6453cSSage Weil kick_requests(osdc, skipped_map); 13973d14c5d2SYehuda Sadeh } 13983d14c5d2SYehuda Sadeh p += maplen; 13993d14c5d2SYehuda Sadeh nr_maps--; 14003d14c5d2SYehuda Sadeh } 14013d14c5d2SYehuda Sadeh 14023d14c5d2SYehuda Sadeh done: 14033d14c5d2SYehuda Sadeh downgrade_write(&osdc->map_sem); 14043d14c5d2SYehuda Sadeh ceph_monc_got_osdmap(&osdc->client->monc, osdc->osdmap->epoch); 1405cd634fb6SSage Weil 1406cd634fb6SSage Weil /* 1407cd634fb6SSage Weil * subscribe to subsequent osdmap updates if full to ensure 1408cd634fb6SSage Weil * we find out when we are no longer full and stop returning 1409cd634fb6SSage Weil * ENOSPC. 1410cd634fb6SSage Weil */ 1411cd634fb6SSage Weil if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL)) 1412cd634fb6SSage Weil ceph_monc_request_next_osdmap(&osdc->client->monc); 1413cd634fb6SSage Weil 1414f9d25199SAlex Elder mutex_lock(&osdc->request_mutex); 1415f9d25199SAlex Elder __send_queued(osdc); 1416f9d25199SAlex Elder mutex_unlock(&osdc->request_mutex); 14173d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 14183d14c5d2SYehuda Sadeh wake_up_all(&osdc->client->auth_wq); 14193d14c5d2SYehuda Sadeh return; 14203d14c5d2SYehuda Sadeh 14213d14c5d2SYehuda Sadeh bad: 14223d14c5d2SYehuda Sadeh pr_err("osdc handle_map corrupt msg\n"); 14233d14c5d2SYehuda Sadeh ceph_msg_dump(msg); 14243d14c5d2SYehuda Sadeh up_write(&osdc->map_sem); 14253d14c5d2SYehuda Sadeh return; 14263d14c5d2SYehuda Sadeh } 14273d14c5d2SYehuda Sadeh 14283d14c5d2SYehuda Sadeh /* 1429a40c4f10SYehuda Sadeh * watch/notify callback event infrastructure 1430a40c4f10SYehuda Sadeh * 1431a40c4f10SYehuda Sadeh * These callbacks are used both for watch and notify operations. 1432a40c4f10SYehuda Sadeh */ 1433a40c4f10SYehuda Sadeh static void __release_event(struct kref *kref) 1434a40c4f10SYehuda Sadeh { 1435a40c4f10SYehuda Sadeh struct ceph_osd_event *event = 1436a40c4f10SYehuda Sadeh container_of(kref, struct ceph_osd_event, kref); 1437a40c4f10SYehuda Sadeh 1438a40c4f10SYehuda Sadeh dout("__release_event %p\n", event); 1439a40c4f10SYehuda Sadeh kfree(event); 1440a40c4f10SYehuda Sadeh } 1441a40c4f10SYehuda Sadeh 1442a40c4f10SYehuda Sadeh static void get_event(struct ceph_osd_event *event) 1443a40c4f10SYehuda Sadeh { 1444a40c4f10SYehuda Sadeh kref_get(&event->kref); 1445a40c4f10SYehuda Sadeh } 1446a40c4f10SYehuda Sadeh 1447a40c4f10SYehuda Sadeh void ceph_osdc_put_event(struct ceph_osd_event *event) 1448a40c4f10SYehuda Sadeh { 1449a40c4f10SYehuda Sadeh kref_put(&event->kref, __release_event); 1450a40c4f10SYehuda Sadeh } 1451a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_put_event); 1452a40c4f10SYehuda Sadeh 1453a40c4f10SYehuda Sadeh static void __insert_event(struct ceph_osd_client *osdc, 1454a40c4f10SYehuda Sadeh struct ceph_osd_event *new) 1455a40c4f10SYehuda Sadeh { 1456a40c4f10SYehuda Sadeh struct rb_node **p = &osdc->event_tree.rb_node; 1457a40c4f10SYehuda Sadeh struct rb_node *parent = NULL; 1458a40c4f10SYehuda Sadeh struct ceph_osd_event *event = NULL; 1459a40c4f10SYehuda Sadeh 1460a40c4f10SYehuda Sadeh while (*p) { 1461a40c4f10SYehuda Sadeh parent = *p; 1462a40c4f10SYehuda Sadeh event = rb_entry(parent, struct ceph_osd_event, node); 1463a40c4f10SYehuda Sadeh if (new->cookie < event->cookie) 1464a40c4f10SYehuda Sadeh p = &(*p)->rb_left; 1465a40c4f10SYehuda Sadeh else if (new->cookie > event->cookie) 1466a40c4f10SYehuda Sadeh p = &(*p)->rb_right; 1467a40c4f10SYehuda Sadeh else 1468a40c4f10SYehuda Sadeh BUG(); 1469a40c4f10SYehuda Sadeh } 1470a40c4f10SYehuda Sadeh 1471a40c4f10SYehuda Sadeh rb_link_node(&new->node, parent, p); 1472a40c4f10SYehuda Sadeh rb_insert_color(&new->node, &osdc->event_tree); 1473a40c4f10SYehuda Sadeh } 1474a40c4f10SYehuda Sadeh 1475a40c4f10SYehuda Sadeh static struct ceph_osd_event *__find_event(struct ceph_osd_client *osdc, 1476a40c4f10SYehuda Sadeh u64 cookie) 1477a40c4f10SYehuda Sadeh { 1478a40c4f10SYehuda Sadeh struct rb_node **p = &osdc->event_tree.rb_node; 1479a40c4f10SYehuda Sadeh struct rb_node *parent = NULL; 1480a40c4f10SYehuda Sadeh struct ceph_osd_event *event = NULL; 1481a40c4f10SYehuda Sadeh 1482a40c4f10SYehuda Sadeh while (*p) { 1483a40c4f10SYehuda Sadeh parent = *p; 1484a40c4f10SYehuda Sadeh event = rb_entry(parent, struct ceph_osd_event, node); 1485a40c4f10SYehuda Sadeh if (cookie < event->cookie) 1486a40c4f10SYehuda Sadeh p = &(*p)->rb_left; 1487a40c4f10SYehuda Sadeh else if (cookie > event->cookie) 1488a40c4f10SYehuda Sadeh p = &(*p)->rb_right; 1489a40c4f10SYehuda Sadeh else 1490a40c4f10SYehuda Sadeh return event; 1491a40c4f10SYehuda Sadeh } 1492a40c4f10SYehuda Sadeh return NULL; 1493a40c4f10SYehuda Sadeh } 1494a40c4f10SYehuda Sadeh 1495a40c4f10SYehuda Sadeh static void __remove_event(struct ceph_osd_event *event) 1496a40c4f10SYehuda Sadeh { 1497a40c4f10SYehuda Sadeh struct ceph_osd_client *osdc = event->osdc; 1498a40c4f10SYehuda Sadeh 1499a40c4f10SYehuda Sadeh if (!RB_EMPTY_NODE(&event->node)) { 1500a40c4f10SYehuda Sadeh dout("__remove_event removed %p\n", event); 1501a40c4f10SYehuda Sadeh rb_erase(&event->node, &osdc->event_tree); 1502a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 1503a40c4f10SYehuda Sadeh } else { 1504a40c4f10SYehuda Sadeh dout("__remove_event didn't remove %p\n", event); 1505a40c4f10SYehuda Sadeh } 1506a40c4f10SYehuda Sadeh } 1507a40c4f10SYehuda Sadeh 1508a40c4f10SYehuda Sadeh int ceph_osdc_create_event(struct ceph_osd_client *osdc, 1509a40c4f10SYehuda Sadeh void (*event_cb)(u64, u64, u8, void *), 15103c663bbdSAlex Elder void *data, struct ceph_osd_event **pevent) 1511a40c4f10SYehuda Sadeh { 1512a40c4f10SYehuda Sadeh struct ceph_osd_event *event; 1513a40c4f10SYehuda Sadeh 1514a40c4f10SYehuda Sadeh event = kmalloc(sizeof(*event), GFP_NOIO); 1515a40c4f10SYehuda Sadeh if (!event) 1516a40c4f10SYehuda Sadeh return -ENOMEM; 1517a40c4f10SYehuda Sadeh 1518a40c4f10SYehuda Sadeh dout("create_event %p\n", event); 1519a40c4f10SYehuda Sadeh event->cb = event_cb; 15203c663bbdSAlex Elder event->one_shot = 0; 1521a40c4f10SYehuda Sadeh event->data = data; 1522a40c4f10SYehuda Sadeh event->osdc = osdc; 1523a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&event->osd_node); 15243ee5234dSAlex Elder RB_CLEAR_NODE(&event->node); 1525a40c4f10SYehuda Sadeh kref_init(&event->kref); /* one ref for us */ 1526a40c4f10SYehuda Sadeh kref_get(&event->kref); /* one ref for the caller */ 1527a40c4f10SYehuda Sadeh 1528a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 1529a40c4f10SYehuda Sadeh event->cookie = ++osdc->event_count; 1530a40c4f10SYehuda Sadeh __insert_event(osdc, event); 1531a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 1532a40c4f10SYehuda Sadeh 1533a40c4f10SYehuda Sadeh *pevent = event; 1534a40c4f10SYehuda Sadeh return 0; 1535a40c4f10SYehuda Sadeh } 1536a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_create_event); 1537a40c4f10SYehuda Sadeh 1538a40c4f10SYehuda Sadeh void ceph_osdc_cancel_event(struct ceph_osd_event *event) 1539a40c4f10SYehuda Sadeh { 1540a40c4f10SYehuda Sadeh struct ceph_osd_client *osdc = event->osdc; 1541a40c4f10SYehuda Sadeh 1542a40c4f10SYehuda Sadeh dout("cancel_event %p\n", event); 1543a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 1544a40c4f10SYehuda Sadeh __remove_event(event); 1545a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 1546a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); /* caller's */ 1547a40c4f10SYehuda Sadeh } 1548a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_cancel_event); 1549a40c4f10SYehuda Sadeh 1550a40c4f10SYehuda Sadeh 1551a40c4f10SYehuda Sadeh static void do_event_work(struct work_struct *work) 1552a40c4f10SYehuda Sadeh { 1553a40c4f10SYehuda Sadeh struct ceph_osd_event_work *event_work = 1554a40c4f10SYehuda Sadeh container_of(work, struct ceph_osd_event_work, work); 1555a40c4f10SYehuda Sadeh struct ceph_osd_event *event = event_work->event; 1556a40c4f10SYehuda Sadeh u64 ver = event_work->ver; 1557a40c4f10SYehuda Sadeh u64 notify_id = event_work->notify_id; 1558a40c4f10SYehuda Sadeh u8 opcode = event_work->opcode; 1559a40c4f10SYehuda Sadeh 1560a40c4f10SYehuda Sadeh dout("do_event_work completing %p\n", event); 1561a40c4f10SYehuda Sadeh event->cb(ver, notify_id, opcode, event->data); 1562a40c4f10SYehuda Sadeh dout("do_event_work completed %p\n", event); 1563a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 1564a40c4f10SYehuda Sadeh kfree(event_work); 1565a40c4f10SYehuda Sadeh } 1566a40c4f10SYehuda Sadeh 1567a40c4f10SYehuda Sadeh 1568a40c4f10SYehuda Sadeh /* 1569a40c4f10SYehuda Sadeh * Process osd watch notifications 1570a40c4f10SYehuda Sadeh */ 15713c663bbdSAlex Elder static void handle_watch_notify(struct ceph_osd_client *osdc, 15723c663bbdSAlex Elder struct ceph_msg *msg) 1573a40c4f10SYehuda Sadeh { 1574a40c4f10SYehuda Sadeh void *p, *end; 1575a40c4f10SYehuda Sadeh u8 proto_ver; 1576a40c4f10SYehuda Sadeh u64 cookie, ver, notify_id; 1577a40c4f10SYehuda Sadeh u8 opcode; 1578a40c4f10SYehuda Sadeh struct ceph_osd_event *event; 1579a40c4f10SYehuda Sadeh struct ceph_osd_event_work *event_work; 1580a40c4f10SYehuda Sadeh 1581a40c4f10SYehuda Sadeh p = msg->front.iov_base; 1582a40c4f10SYehuda Sadeh end = p + msg->front.iov_len; 1583a40c4f10SYehuda Sadeh 1584a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, proto_ver, bad); 1585a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, opcode, bad); 1586a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, cookie, bad); 1587a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, ver, bad); 1588a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, notify_id, bad); 1589a40c4f10SYehuda Sadeh 1590a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 1591a40c4f10SYehuda Sadeh event = __find_event(osdc, cookie); 1592a40c4f10SYehuda Sadeh if (event) { 15933c663bbdSAlex Elder BUG_ON(event->one_shot); 1594a40c4f10SYehuda Sadeh get_event(event); 1595a40c4f10SYehuda Sadeh } 1596a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 1597a40c4f10SYehuda Sadeh dout("handle_watch_notify cookie %lld ver %lld event %p\n", 1598a40c4f10SYehuda Sadeh cookie, ver, event); 1599a40c4f10SYehuda Sadeh if (event) { 1600a40c4f10SYehuda Sadeh event_work = kmalloc(sizeof(*event_work), GFP_NOIO); 1601a40c4f10SYehuda Sadeh if (!event_work) { 1602a40c4f10SYehuda Sadeh dout("ERROR: could not allocate event_work\n"); 1603a40c4f10SYehuda Sadeh goto done_err; 1604a40c4f10SYehuda Sadeh } 16056b0ae409SMariusz Kozlowski INIT_WORK(&event_work->work, do_event_work); 1606a40c4f10SYehuda Sadeh event_work->event = event; 1607a40c4f10SYehuda Sadeh event_work->ver = ver; 1608a40c4f10SYehuda Sadeh event_work->notify_id = notify_id; 1609a40c4f10SYehuda Sadeh event_work->opcode = opcode; 1610a40c4f10SYehuda Sadeh if (!queue_work(osdc->notify_wq, &event_work->work)) { 1611a40c4f10SYehuda Sadeh dout("WARNING: failed to queue notify event work\n"); 1612a40c4f10SYehuda Sadeh goto done_err; 1613a40c4f10SYehuda Sadeh } 1614a40c4f10SYehuda Sadeh } 1615a40c4f10SYehuda Sadeh 1616a40c4f10SYehuda Sadeh return; 1617a40c4f10SYehuda Sadeh 1618a40c4f10SYehuda Sadeh done_err: 1619a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 1620a40c4f10SYehuda Sadeh return; 1621a40c4f10SYehuda Sadeh 1622a40c4f10SYehuda Sadeh bad: 1623a40c4f10SYehuda Sadeh pr_err("osdc handle_watch_notify corrupt msg\n"); 1624a40c4f10SYehuda Sadeh return; 1625a40c4f10SYehuda Sadeh } 1626a40c4f10SYehuda Sadeh 1627a40c4f10SYehuda Sadeh /* 16283d14c5d2SYehuda Sadeh * Register request, send initial attempt. 16293d14c5d2SYehuda Sadeh */ 16303d14c5d2SYehuda Sadeh int ceph_osdc_start_request(struct ceph_osd_client *osdc, 16313d14c5d2SYehuda Sadeh struct ceph_osd_request *req, 16323d14c5d2SYehuda Sadeh bool nofail) 16333d14c5d2SYehuda Sadeh { 16343d14c5d2SYehuda Sadeh int rc = 0; 16353d14c5d2SYehuda Sadeh 16363d14c5d2SYehuda Sadeh req->r_request->pages = req->r_pages; 16373d14c5d2SYehuda Sadeh req->r_request->nr_pages = req->r_num_pages; 16383d14c5d2SYehuda Sadeh #ifdef CONFIG_BLOCK 16393d14c5d2SYehuda Sadeh req->r_request->bio = req->r_bio; 16403d14c5d2SYehuda Sadeh #endif 1641c885837fSAlex Elder req->r_request->trail = &req->r_trail; 16423d14c5d2SYehuda Sadeh 16433d14c5d2SYehuda Sadeh register_request(osdc, req); 16443d14c5d2SYehuda Sadeh 16453d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 16463d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 16473d14c5d2SYehuda Sadeh /* 16483d14c5d2SYehuda Sadeh * a racing kick_requests() may have sent the message for us 16493d14c5d2SYehuda Sadeh * while we dropped request_mutex above, so only send now if 16503d14c5d2SYehuda Sadeh * the request still han't been touched yet. 16513d14c5d2SYehuda Sadeh */ 16523d14c5d2SYehuda Sadeh if (req->r_sent == 0) { 165338d6453cSSage Weil rc = __map_request(osdc, req, 0); 16549d6fcb08SSage Weil if (rc < 0) { 16559d6fcb08SSage Weil if (nofail) { 16569d6fcb08SSage Weil dout("osdc_start_request failed map, " 16579d6fcb08SSage Weil " will retry %lld\n", req->r_tid); 16589d6fcb08SSage Weil rc = 0; 16599d6fcb08SSage Weil } 1660234af26fSDan Carpenter goto out_unlock; 16619d6fcb08SSage Weil } 16626f6c7006SSage Weil if (req->r_osd == NULL) { 16636f6c7006SSage Weil dout("send_request %p no up osds in pg\n", req); 16646f6c7006SSage Weil ceph_monc_request_next_osdmap(&osdc->client->monc); 16656f6c7006SSage Weil } else { 166656e925b6SSage Weil __send_request(osdc, req); 166756e925b6SSage Weil } 16683d14c5d2SYehuda Sadeh rc = 0; 16696f6c7006SSage Weil } 1670234af26fSDan Carpenter 1671234af26fSDan Carpenter out_unlock: 16723d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 16733d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 16743d14c5d2SYehuda Sadeh return rc; 16753d14c5d2SYehuda Sadeh } 16763d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_start_request); 16773d14c5d2SYehuda Sadeh 16783d14c5d2SYehuda Sadeh /* 16793d14c5d2SYehuda Sadeh * wait for a request to complete 16803d14c5d2SYehuda Sadeh */ 16813d14c5d2SYehuda Sadeh int ceph_osdc_wait_request(struct ceph_osd_client *osdc, 16823d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 16833d14c5d2SYehuda Sadeh { 16843d14c5d2SYehuda Sadeh int rc; 16853d14c5d2SYehuda Sadeh 16863d14c5d2SYehuda Sadeh rc = wait_for_completion_interruptible(&req->r_completion); 16873d14c5d2SYehuda Sadeh if (rc < 0) { 16883d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 16893d14c5d2SYehuda Sadeh __cancel_request(req); 16903d14c5d2SYehuda Sadeh __unregister_request(osdc, req); 16913d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 169225845472SSage Weil complete_request(req); 16933d14c5d2SYehuda Sadeh dout("wait_request tid %llu canceled/timed out\n", req->r_tid); 16943d14c5d2SYehuda Sadeh return rc; 16953d14c5d2SYehuda Sadeh } 16963d14c5d2SYehuda Sadeh 16973d14c5d2SYehuda Sadeh dout("wait_request tid %llu result %d\n", req->r_tid, req->r_result); 16983d14c5d2SYehuda Sadeh return req->r_result; 16993d14c5d2SYehuda Sadeh } 17003d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_wait_request); 17013d14c5d2SYehuda Sadeh 17023d14c5d2SYehuda Sadeh /* 17033d14c5d2SYehuda Sadeh * sync - wait for all in-flight requests to flush. avoid starvation. 17043d14c5d2SYehuda Sadeh */ 17053d14c5d2SYehuda Sadeh void ceph_osdc_sync(struct ceph_osd_client *osdc) 17063d14c5d2SYehuda Sadeh { 17073d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 17083d14c5d2SYehuda Sadeh u64 last_tid, next_tid = 0; 17093d14c5d2SYehuda Sadeh 17103d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 17113d14c5d2SYehuda Sadeh last_tid = osdc->last_tid; 17123d14c5d2SYehuda Sadeh while (1) { 17133d14c5d2SYehuda Sadeh req = __lookup_request_ge(osdc, next_tid); 17143d14c5d2SYehuda Sadeh if (!req) 17153d14c5d2SYehuda Sadeh break; 17163d14c5d2SYehuda Sadeh if (req->r_tid > last_tid) 17173d14c5d2SYehuda Sadeh break; 17183d14c5d2SYehuda Sadeh 17193d14c5d2SYehuda Sadeh next_tid = req->r_tid + 1; 17203d14c5d2SYehuda Sadeh if ((req->r_flags & CEPH_OSD_FLAG_WRITE) == 0) 17213d14c5d2SYehuda Sadeh continue; 17223d14c5d2SYehuda Sadeh 17233d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 17243d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 17253d14c5d2SYehuda Sadeh dout("sync waiting on tid %llu (last is %llu)\n", 17263d14c5d2SYehuda Sadeh req->r_tid, last_tid); 17273d14c5d2SYehuda Sadeh wait_for_completion(&req->r_safe_completion); 17283d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 17293d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 17303d14c5d2SYehuda Sadeh } 17313d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 17323d14c5d2SYehuda Sadeh dout("sync done (thru tid %llu)\n", last_tid); 17333d14c5d2SYehuda Sadeh } 17343d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_sync); 17353d14c5d2SYehuda Sadeh 17363d14c5d2SYehuda Sadeh /* 17373d14c5d2SYehuda Sadeh * init, shutdown 17383d14c5d2SYehuda Sadeh */ 17393d14c5d2SYehuda Sadeh int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) 17403d14c5d2SYehuda Sadeh { 17413d14c5d2SYehuda Sadeh int err; 17423d14c5d2SYehuda Sadeh 17433d14c5d2SYehuda Sadeh dout("init\n"); 17443d14c5d2SYehuda Sadeh osdc->client = client; 17453d14c5d2SYehuda Sadeh osdc->osdmap = NULL; 17463d14c5d2SYehuda Sadeh init_rwsem(&osdc->map_sem); 17473d14c5d2SYehuda Sadeh init_completion(&osdc->map_waiters); 17483d14c5d2SYehuda Sadeh osdc->last_requested_map = 0; 17493d14c5d2SYehuda Sadeh mutex_init(&osdc->request_mutex); 17503d14c5d2SYehuda Sadeh osdc->last_tid = 0; 17513d14c5d2SYehuda Sadeh osdc->osds = RB_ROOT; 17523d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osdc->osd_lru); 17533d14c5d2SYehuda Sadeh osdc->requests = RB_ROOT; 17543d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osdc->req_lru); 17556f6c7006SSage Weil INIT_LIST_HEAD(&osdc->req_unsent); 17566f6c7006SSage Weil INIT_LIST_HEAD(&osdc->req_notarget); 1757a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&osdc->req_linger); 17583d14c5d2SYehuda Sadeh osdc->num_requests = 0; 17593d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->timeout_work, handle_timeout); 17603d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->osds_timeout_work, handle_osds_timeout); 1761a40c4f10SYehuda Sadeh spin_lock_init(&osdc->event_lock); 1762a40c4f10SYehuda Sadeh osdc->event_tree = RB_ROOT; 1763a40c4f10SYehuda Sadeh osdc->event_count = 0; 17643d14c5d2SYehuda Sadeh 17653d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->osds_timeout_work, 17663d14c5d2SYehuda Sadeh round_jiffies_relative(osdc->client->options->osd_idle_ttl * HZ)); 17673d14c5d2SYehuda Sadeh 17683d14c5d2SYehuda Sadeh err = -ENOMEM; 17693d14c5d2SYehuda Sadeh osdc->req_mempool = mempool_create_kmalloc_pool(10, 17703d14c5d2SYehuda Sadeh sizeof(struct ceph_osd_request)); 17713d14c5d2SYehuda Sadeh if (!osdc->req_mempool) 17723d14c5d2SYehuda Sadeh goto out; 17733d14c5d2SYehuda Sadeh 1774d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op, CEPH_MSG_OSD_OP, 1775d50b409fSSage Weil OSD_OP_FRONT_LEN, 10, true, 17763d14c5d2SYehuda Sadeh "osd_op"); 17773d14c5d2SYehuda Sadeh if (err < 0) 17783d14c5d2SYehuda Sadeh goto out_mempool; 1779d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op_reply, CEPH_MSG_OSD_OPREPLY, 17803d14c5d2SYehuda Sadeh OSD_OPREPLY_FRONT_LEN, 10, true, 17813d14c5d2SYehuda Sadeh "osd_op_reply"); 17823d14c5d2SYehuda Sadeh if (err < 0) 17833d14c5d2SYehuda Sadeh goto out_msgpool; 1784a40c4f10SYehuda Sadeh 1785a40c4f10SYehuda Sadeh osdc->notify_wq = create_singlethread_workqueue("ceph-watch-notify"); 1786a40c4f10SYehuda Sadeh if (IS_ERR(osdc->notify_wq)) { 1787a40c4f10SYehuda Sadeh err = PTR_ERR(osdc->notify_wq); 1788a40c4f10SYehuda Sadeh osdc->notify_wq = NULL; 1789a40c4f10SYehuda Sadeh goto out_msgpool; 1790a40c4f10SYehuda Sadeh } 17913d14c5d2SYehuda Sadeh return 0; 17923d14c5d2SYehuda Sadeh 17933d14c5d2SYehuda Sadeh out_msgpool: 17943d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 17953d14c5d2SYehuda Sadeh out_mempool: 17963d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 17973d14c5d2SYehuda Sadeh out: 17983d14c5d2SYehuda Sadeh return err; 17993d14c5d2SYehuda Sadeh } 18003d14c5d2SYehuda Sadeh 18013d14c5d2SYehuda Sadeh void ceph_osdc_stop(struct ceph_osd_client *osdc) 18023d14c5d2SYehuda Sadeh { 1803a40c4f10SYehuda Sadeh flush_workqueue(osdc->notify_wq); 1804a40c4f10SYehuda Sadeh destroy_workqueue(osdc->notify_wq); 18053d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->timeout_work); 18063d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->osds_timeout_work); 18073d14c5d2SYehuda Sadeh if (osdc->osdmap) { 18083d14c5d2SYehuda Sadeh ceph_osdmap_destroy(osdc->osdmap); 18093d14c5d2SYehuda Sadeh osdc->osdmap = NULL; 18103d14c5d2SYehuda Sadeh } 1811aca420bcSSage Weil remove_all_osds(osdc); 18123d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 18133d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 18143d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op_reply); 18153d14c5d2SYehuda Sadeh } 18163d14c5d2SYehuda Sadeh 18173d14c5d2SYehuda Sadeh /* 18183d14c5d2SYehuda Sadeh * Read some contiguous pages. If we cross a stripe boundary, shorten 18193d14c5d2SYehuda Sadeh * *plen. Return number of bytes read, or error. 18203d14c5d2SYehuda Sadeh */ 18213d14c5d2SYehuda Sadeh int ceph_osdc_readpages(struct ceph_osd_client *osdc, 18223d14c5d2SYehuda Sadeh struct ceph_vino vino, struct ceph_file_layout *layout, 18233d14c5d2SYehuda Sadeh u64 off, u64 *plen, 18243d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 1825b7495fc2SSage Weil struct page **pages, int num_pages, int page_align) 18263d14c5d2SYehuda Sadeh { 18273d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 18283d14c5d2SYehuda Sadeh int rc = 0; 18293d14c5d2SYehuda Sadeh 18303d14c5d2SYehuda Sadeh dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino, 18313d14c5d2SYehuda Sadeh vino.snap, off, *plen); 18323d14c5d2SYehuda Sadeh req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 18333d14c5d2SYehuda Sadeh CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, 18343d14c5d2SYehuda Sadeh NULL, 0, truncate_seq, truncate_size, NULL, 1835a3bea47eSAlex Elder false, page_align); 18366816282dSSage Weil if (IS_ERR(req)) 18376816282dSSage Weil return PTR_ERR(req); 18383d14c5d2SYehuda Sadeh 18393d14c5d2SYehuda Sadeh /* it may be a short read due to an object boundary */ 18403d14c5d2SYehuda Sadeh req->r_pages = pages; 18413d14c5d2SYehuda Sadeh 1842b7495fc2SSage Weil dout("readpages final extent is %llu~%llu (%d pages align %d)\n", 1843b7495fc2SSage Weil off, *plen, req->r_num_pages, page_align); 18443d14c5d2SYehuda Sadeh 18453d14c5d2SYehuda Sadeh rc = ceph_osdc_start_request(osdc, req, false); 18463d14c5d2SYehuda Sadeh if (!rc) 18473d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 18483d14c5d2SYehuda Sadeh 18493d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 18503d14c5d2SYehuda Sadeh dout("readpages result %d\n", rc); 18513d14c5d2SYehuda Sadeh return rc; 18523d14c5d2SYehuda Sadeh } 18533d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_readpages); 18543d14c5d2SYehuda Sadeh 18553d14c5d2SYehuda Sadeh /* 18563d14c5d2SYehuda Sadeh * do a synchronous write on N pages 18573d14c5d2SYehuda Sadeh */ 18583d14c5d2SYehuda Sadeh int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, 18593d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 18603d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 18613d14c5d2SYehuda Sadeh u64 off, u64 len, 18623d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 18633d14c5d2SYehuda Sadeh struct timespec *mtime, 186424808826SAlex Elder struct page **pages, int num_pages) 18653d14c5d2SYehuda Sadeh { 18663d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 18673d14c5d2SYehuda Sadeh int rc = 0; 1868b7495fc2SSage Weil int page_align = off & ~PAGE_MASK; 18693d14c5d2SYehuda Sadeh 18703d14c5d2SYehuda Sadeh BUG_ON(vino.snap != CEPH_NOSNAP); 18713d14c5d2SYehuda Sadeh req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 18723d14c5d2SYehuda Sadeh CEPH_OSD_OP_WRITE, 187324808826SAlex Elder CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE, 1874fbf8685fSAlex Elder snapc, 0, 18753d14c5d2SYehuda Sadeh truncate_seq, truncate_size, mtime, 1876a3bea47eSAlex Elder true, page_align); 18776816282dSSage Weil if (IS_ERR(req)) 18786816282dSSage Weil return PTR_ERR(req); 18793d14c5d2SYehuda Sadeh 18803d14c5d2SYehuda Sadeh /* it may be a short write due to an object boundary */ 18813d14c5d2SYehuda Sadeh req->r_pages = pages; 18823d14c5d2SYehuda Sadeh dout("writepages %llu~%llu (%d pages)\n", off, len, 18833d14c5d2SYehuda Sadeh req->r_num_pages); 18843d14c5d2SYehuda Sadeh 188587f979d3SAlex Elder rc = ceph_osdc_start_request(osdc, req, true); 18863d14c5d2SYehuda Sadeh if (!rc) 18873d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 18883d14c5d2SYehuda Sadeh 18893d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 18903d14c5d2SYehuda Sadeh if (rc == 0) 18913d14c5d2SYehuda Sadeh rc = len; 18923d14c5d2SYehuda Sadeh dout("writepages result %d\n", rc); 18933d14c5d2SYehuda Sadeh return rc; 18943d14c5d2SYehuda Sadeh } 18953d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_writepages); 18963d14c5d2SYehuda Sadeh 18973d14c5d2SYehuda Sadeh /* 18983d14c5d2SYehuda Sadeh * handle incoming message 18993d14c5d2SYehuda Sadeh */ 19003d14c5d2SYehuda Sadeh static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) 19013d14c5d2SYehuda Sadeh { 19023d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 19033d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc; 19043d14c5d2SYehuda Sadeh int type = le16_to_cpu(msg->hdr.type); 19053d14c5d2SYehuda Sadeh 19063d14c5d2SYehuda Sadeh if (!osd) 19073d14c5d2SYehuda Sadeh goto out; 19083d14c5d2SYehuda Sadeh osdc = osd->o_osdc; 19093d14c5d2SYehuda Sadeh 19103d14c5d2SYehuda Sadeh switch (type) { 19113d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 19123d14c5d2SYehuda Sadeh ceph_osdc_handle_map(osdc, msg); 19133d14c5d2SYehuda Sadeh break; 19143d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 19153d14c5d2SYehuda Sadeh handle_reply(osdc, msg, con); 19163d14c5d2SYehuda Sadeh break; 1917a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 1918a40c4f10SYehuda Sadeh handle_watch_notify(osdc, msg); 1919a40c4f10SYehuda Sadeh break; 19203d14c5d2SYehuda Sadeh 19213d14c5d2SYehuda Sadeh default: 19223d14c5d2SYehuda Sadeh pr_err("received unknown message type %d %s\n", type, 19233d14c5d2SYehuda Sadeh ceph_msg_type_name(type)); 19243d14c5d2SYehuda Sadeh } 19253d14c5d2SYehuda Sadeh out: 19263d14c5d2SYehuda Sadeh ceph_msg_put(msg); 19273d14c5d2SYehuda Sadeh } 19283d14c5d2SYehuda Sadeh 19293d14c5d2SYehuda Sadeh /* 19303d14c5d2SYehuda Sadeh * lookup and return message for incoming reply. set up reply message 19313d14c5d2SYehuda Sadeh * pages. 19323d14c5d2SYehuda Sadeh */ 19333d14c5d2SYehuda Sadeh static struct ceph_msg *get_reply(struct ceph_connection *con, 19343d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 19353d14c5d2SYehuda Sadeh int *skip) 19363d14c5d2SYehuda Sadeh { 19373d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 19383d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = osd->o_osdc; 19393d14c5d2SYehuda Sadeh struct ceph_msg *m; 19403d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 19413d14c5d2SYehuda Sadeh int front = le32_to_cpu(hdr->front_len); 19423d14c5d2SYehuda Sadeh int data_len = le32_to_cpu(hdr->data_len); 19433d14c5d2SYehuda Sadeh u64 tid; 19443d14c5d2SYehuda Sadeh 19453d14c5d2SYehuda Sadeh tid = le64_to_cpu(hdr->tid); 19463d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 19473d14c5d2SYehuda Sadeh req = __lookup_request(osdc, tid); 19483d14c5d2SYehuda Sadeh if (!req) { 19493d14c5d2SYehuda Sadeh *skip = 1; 19503d14c5d2SYehuda Sadeh m = NULL; 1951756a16a5SSage Weil dout("get_reply unknown tid %llu from osd%d\n", tid, 19523d14c5d2SYehuda Sadeh osd->o_osd); 19533d14c5d2SYehuda Sadeh goto out; 19543d14c5d2SYehuda Sadeh } 19553d14c5d2SYehuda Sadeh 19563d14c5d2SYehuda Sadeh if (req->r_con_filling_msg) { 19578921d114SAlex Elder dout("%s revoking msg %p from old con %p\n", __func__, 19583d14c5d2SYehuda Sadeh req->r_reply, req->r_con_filling_msg); 19598921d114SAlex Elder ceph_msg_revoke_incoming(req->r_reply); 19600d47766fSSage Weil req->r_con_filling_msg->ops->put(req->r_con_filling_msg); 19613d14c5d2SYehuda Sadeh req->r_con_filling_msg = NULL; 19623d14c5d2SYehuda Sadeh } 19633d14c5d2SYehuda Sadeh 19643d14c5d2SYehuda Sadeh if (front > req->r_reply->front.iov_len) { 19653d14c5d2SYehuda Sadeh pr_warning("get_reply front %d > preallocated %d\n", 19663d14c5d2SYehuda Sadeh front, (int)req->r_reply->front.iov_len); 1967b61c2763SSage Weil m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front, GFP_NOFS, false); 19683d14c5d2SYehuda Sadeh if (!m) 19693d14c5d2SYehuda Sadeh goto out; 19703d14c5d2SYehuda Sadeh ceph_msg_put(req->r_reply); 19713d14c5d2SYehuda Sadeh req->r_reply = m; 19723d14c5d2SYehuda Sadeh } 19733d14c5d2SYehuda Sadeh m = ceph_msg_get(req->r_reply); 19743d14c5d2SYehuda Sadeh 19753d14c5d2SYehuda Sadeh if (data_len > 0) { 1976b7495fc2SSage Weil int want = calc_pages_for(req->r_page_alignment, data_len); 19773d14c5d2SYehuda Sadeh 19789cbb1d72SAlex Elder if (req->r_pages && unlikely(req->r_num_pages < want)) { 19799bb0ce2bSSage Weil pr_warning("tid %lld reply has %d bytes %d pages, we" 19809bb0ce2bSSage Weil " had only %d pages ready\n", tid, data_len, 19819bb0ce2bSSage Weil want, req->r_num_pages); 19823d14c5d2SYehuda Sadeh *skip = 1; 19833d14c5d2SYehuda Sadeh ceph_msg_put(m); 19843d14c5d2SYehuda Sadeh m = NULL; 19853d14c5d2SYehuda Sadeh goto out; 19863d14c5d2SYehuda Sadeh } 19873d14c5d2SYehuda Sadeh m->pages = req->r_pages; 19883d14c5d2SYehuda Sadeh m->nr_pages = req->r_num_pages; 1989c5c6b19dSSage Weil m->page_alignment = req->r_page_alignment; 19903d14c5d2SYehuda Sadeh #ifdef CONFIG_BLOCK 19913d14c5d2SYehuda Sadeh m->bio = req->r_bio; 19923d14c5d2SYehuda Sadeh #endif 19933d14c5d2SYehuda Sadeh } 19943d14c5d2SYehuda Sadeh *skip = 0; 19950d47766fSSage Weil req->r_con_filling_msg = con->ops->get(con); 19963d14c5d2SYehuda Sadeh dout("get_reply tid %lld %p\n", tid, m); 19973d14c5d2SYehuda Sadeh 19983d14c5d2SYehuda Sadeh out: 19993d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 20003d14c5d2SYehuda Sadeh return m; 20013d14c5d2SYehuda Sadeh 20023d14c5d2SYehuda Sadeh } 20033d14c5d2SYehuda Sadeh 20043d14c5d2SYehuda Sadeh static struct ceph_msg *alloc_msg(struct ceph_connection *con, 20053d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 20063d14c5d2SYehuda Sadeh int *skip) 20073d14c5d2SYehuda Sadeh { 20083d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 20093d14c5d2SYehuda Sadeh int type = le16_to_cpu(hdr->type); 20103d14c5d2SYehuda Sadeh int front = le32_to_cpu(hdr->front_len); 20113d14c5d2SYehuda Sadeh 20121c20f2d2SAlex Elder *skip = 0; 20133d14c5d2SYehuda Sadeh switch (type) { 20143d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 2015a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 2016b61c2763SSage Weil return ceph_msg_new(type, front, GFP_NOFS, false); 20173d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 20183d14c5d2SYehuda Sadeh return get_reply(con, hdr, skip); 20193d14c5d2SYehuda Sadeh default: 20203d14c5d2SYehuda Sadeh pr_info("alloc_msg unexpected msg type %d from osd%d\n", type, 20213d14c5d2SYehuda Sadeh osd->o_osd); 20223d14c5d2SYehuda Sadeh *skip = 1; 20233d14c5d2SYehuda Sadeh return NULL; 20243d14c5d2SYehuda Sadeh } 20253d14c5d2SYehuda Sadeh } 20263d14c5d2SYehuda Sadeh 20273d14c5d2SYehuda Sadeh /* 20283d14c5d2SYehuda Sadeh * Wrappers to refcount containing ceph_osd struct 20293d14c5d2SYehuda Sadeh */ 20303d14c5d2SYehuda Sadeh static struct ceph_connection *get_osd_con(struct ceph_connection *con) 20313d14c5d2SYehuda Sadeh { 20323d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 20333d14c5d2SYehuda Sadeh if (get_osd(osd)) 20343d14c5d2SYehuda Sadeh return con; 20353d14c5d2SYehuda Sadeh return NULL; 20363d14c5d2SYehuda Sadeh } 20373d14c5d2SYehuda Sadeh 20383d14c5d2SYehuda Sadeh static void put_osd_con(struct ceph_connection *con) 20393d14c5d2SYehuda Sadeh { 20403d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 20413d14c5d2SYehuda Sadeh put_osd(osd); 20423d14c5d2SYehuda Sadeh } 20433d14c5d2SYehuda Sadeh 20443d14c5d2SYehuda Sadeh /* 20453d14c5d2SYehuda Sadeh * authentication 20463d14c5d2SYehuda Sadeh */ 2047a3530df3SAlex Elder /* 2048a3530df3SAlex Elder * Note: returned pointer is the address of a structure that's 2049a3530df3SAlex Elder * managed separately. Caller must *not* attempt to free it. 2050a3530df3SAlex Elder */ 2051a3530df3SAlex Elder static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con, 20528f43fb53SAlex Elder int *proto, int force_new) 20533d14c5d2SYehuda Sadeh { 20543d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 20553d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 20563d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 205774f1869fSAlex Elder struct ceph_auth_handshake *auth = &o->o_auth; 20583d14c5d2SYehuda Sadeh 205974f1869fSAlex Elder if (force_new && auth->authorizer) { 2060a255651dSAlex Elder if (ac->ops && ac->ops->destroy_authorizer) 206174f1869fSAlex Elder ac->ops->destroy_authorizer(ac, auth->authorizer); 206274f1869fSAlex Elder auth->authorizer = NULL; 20633d14c5d2SYehuda Sadeh } 2064a255651dSAlex Elder if (!auth->authorizer && ac->ops && ac->ops->create_authorizer) { 2065a3530df3SAlex Elder int ret = ac->ops->create_authorizer(ac, CEPH_ENTITY_TYPE_OSD, 2066a3530df3SAlex Elder auth); 20673d14c5d2SYehuda Sadeh if (ret) 2068a3530df3SAlex Elder return ERR_PTR(ret); 20693d14c5d2SYehuda Sadeh } 20703d14c5d2SYehuda Sadeh *proto = ac->protocol; 207174f1869fSAlex Elder 2072a3530df3SAlex Elder return auth; 20733d14c5d2SYehuda Sadeh } 20743d14c5d2SYehuda Sadeh 20753d14c5d2SYehuda Sadeh 20763d14c5d2SYehuda Sadeh static int verify_authorizer_reply(struct ceph_connection *con, int len) 20773d14c5d2SYehuda Sadeh { 20783d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 20793d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 20803d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 20813d14c5d2SYehuda Sadeh 2082a255651dSAlex Elder /* 2083a255651dSAlex Elder * XXX If ac->ops or ac->ops->verify_authorizer_reply is null, 2084a255651dSAlex Elder * XXX which do we do: succeed or fail? 2085a255651dSAlex Elder */ 20866c4a1915SAlex Elder return ac->ops->verify_authorizer_reply(ac, o->o_auth.authorizer, len); 20873d14c5d2SYehuda Sadeh } 20883d14c5d2SYehuda Sadeh 20893d14c5d2SYehuda Sadeh static int invalidate_authorizer(struct ceph_connection *con) 20903d14c5d2SYehuda Sadeh { 20913d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 20923d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 20933d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 20943d14c5d2SYehuda Sadeh 2095a255651dSAlex Elder if (ac->ops && ac->ops->invalidate_authorizer) 20963d14c5d2SYehuda Sadeh ac->ops->invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD); 20973d14c5d2SYehuda Sadeh 20983d14c5d2SYehuda Sadeh return ceph_monc_validate_auth(&osdc->client->monc); 20993d14c5d2SYehuda Sadeh } 21003d14c5d2SYehuda Sadeh 21013d14c5d2SYehuda Sadeh static const struct ceph_connection_operations osd_con_ops = { 21023d14c5d2SYehuda Sadeh .get = get_osd_con, 21033d14c5d2SYehuda Sadeh .put = put_osd_con, 21043d14c5d2SYehuda Sadeh .dispatch = dispatch, 21053d14c5d2SYehuda Sadeh .get_authorizer = get_authorizer, 21063d14c5d2SYehuda Sadeh .verify_authorizer_reply = verify_authorizer_reply, 21073d14c5d2SYehuda Sadeh .invalidate_authorizer = invalidate_authorizer, 21083d14c5d2SYehuda Sadeh .alloc_msg = alloc_msg, 21093d14c5d2SYehuda Sadeh .fault = osd_reset, 21103d14c5d2SYehuda Sadeh }; 2111