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 266f6c7006SSage Weil 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 41e75b45cfSAlex Elder int ceph_calc_raw_layout(struct ceph_file_layout *layout, 423d14c5d2SYehuda Sadeh u64 off, u64 *plen, u64 *bno, 433d14c5d2SYehuda Sadeh struct ceph_osd_request *req, 443d14c5d2SYehuda Sadeh struct ceph_osd_req_op *op) 453d14c5d2SYehuda Sadeh { 463d14c5d2SYehuda Sadeh u64 orig_len = *plen; 473d14c5d2SYehuda Sadeh u64 objoff, objlen; /* extent in object */ 48d63b77f4SSage Weil int r; 493d14c5d2SYehuda Sadeh 503d14c5d2SYehuda Sadeh /* object extent? */ 51e8afad65SAlex Elder r = ceph_calc_file_object_mapping(layout, off, orig_len, bno, 523d14c5d2SYehuda Sadeh &objoff, &objlen); 53d63b77f4SSage Weil if (r < 0) 54d63b77f4SSage Weil return r; 55e8afad65SAlex Elder if (objlen < orig_len) { 56e8afad65SAlex Elder *plen = objlen; 573d14c5d2SYehuda Sadeh dout(" skipping last %llu, final file extent %llu~%llu\n", 583d14c5d2SYehuda Sadeh orig_len - *plen, off, *plen); 59e8afad65SAlex Elder } 603d14c5d2SYehuda Sadeh 613d14c5d2SYehuda Sadeh if (op_has_extent(op->op)) { 62a41bad1aSYan, Zheng u32 osize = le32_to_cpu(layout->fl_object_size); 633d14c5d2SYehuda Sadeh op->extent.offset = objoff; 643d14c5d2SYehuda Sadeh op->extent.length = objlen; 65a41bad1aSYan, Zheng if (op->extent.truncate_size <= off - objoff) { 66a41bad1aSYan, Zheng op->extent.truncate_size = 0; 67a41bad1aSYan, Zheng } else { 68a41bad1aSYan, Zheng op->extent.truncate_size -= off - objoff; 69a41bad1aSYan, Zheng if (op->extent.truncate_size > osize) 70a41bad1aSYan, Zheng op->extent.truncate_size = osize; 71a41bad1aSYan, Zheng } 723d14c5d2SYehuda Sadeh } 733d14c5d2SYehuda Sadeh req->r_num_pages = calc_pages_for(off, *plen); 74b7495fc2SSage Weil req->r_page_alignment = off & ~PAGE_MASK; 753d14c5d2SYehuda Sadeh if (op->op == CEPH_OSD_OP_WRITE) 763d14c5d2SYehuda Sadeh op->payload_len = *plen; 773d14c5d2SYehuda Sadeh 783d14c5d2SYehuda Sadeh dout("calc_layout bno=%llx %llu~%llu (%d pages)\n", 793d14c5d2SYehuda Sadeh *bno, objoff, objlen, req->r_num_pages); 80d63b77f4SSage Weil return 0; 813d14c5d2SYehuda Sadeh } 823d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_calc_raw_layout); 833d14c5d2SYehuda Sadeh 843d14c5d2SYehuda Sadeh /* 853d14c5d2SYehuda Sadeh * Implement client access to distributed object storage cluster. 863d14c5d2SYehuda Sadeh * 873d14c5d2SYehuda Sadeh * All data objects are stored within a cluster/cloud of OSDs, or 883d14c5d2SYehuda Sadeh * "object storage devices." (Note that Ceph OSDs have _nothing_ to 893d14c5d2SYehuda Sadeh * do with the T10 OSD extensions to SCSI.) Ceph OSDs are simply 903d14c5d2SYehuda Sadeh * remote daemons serving up and coordinating consistent and safe 913d14c5d2SYehuda Sadeh * access to storage. 923d14c5d2SYehuda Sadeh * 933d14c5d2SYehuda Sadeh * Cluster membership and the mapping of data objects onto storage devices 943d14c5d2SYehuda Sadeh * are described by the osd map. 953d14c5d2SYehuda Sadeh * 963d14c5d2SYehuda Sadeh * We keep track of pending OSD requests (read, write), resubmit 973d14c5d2SYehuda Sadeh * requests to different OSDs when the cluster topology/data layout 983d14c5d2SYehuda Sadeh * change, or retry the affected requests when the communications 993d14c5d2SYehuda Sadeh * channel with an OSD is reset. 1003d14c5d2SYehuda Sadeh */ 1013d14c5d2SYehuda Sadeh 1023d14c5d2SYehuda Sadeh /* 1033d14c5d2SYehuda Sadeh * calculate the mapping of a file extent onto an object, and fill out the 1043d14c5d2SYehuda Sadeh * request accordingly. shorten extent as necessary if it crosses an 1053d14c5d2SYehuda Sadeh * object boundary. 1063d14c5d2SYehuda Sadeh * 1073d14c5d2SYehuda Sadeh * fill osd op in request message. 1083d14c5d2SYehuda Sadeh */ 109e75b45cfSAlex Elder static int calc_layout(struct ceph_vino vino, 1103d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 1113d14c5d2SYehuda Sadeh u64 off, u64 *plen, 1123d14c5d2SYehuda Sadeh struct ceph_osd_request *req, 1133d14c5d2SYehuda Sadeh struct ceph_osd_req_op *op) 1143d14c5d2SYehuda Sadeh { 1153d14c5d2SYehuda Sadeh u64 bno; 116d63b77f4SSage Weil int r; 1173d14c5d2SYehuda Sadeh 118e75b45cfSAlex Elder r = ceph_calc_raw_layout(layout, off, plen, &bno, req, op); 119d63b77f4SSage Weil if (r < 0) 120d63b77f4SSage Weil return r; 1213d14c5d2SYehuda Sadeh 1222dab036bSSage Weil snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx", vino.ino, bno); 1233d14c5d2SYehuda Sadeh req->r_oid_len = strlen(req->r_oid); 124d63b77f4SSage Weil 125d63b77f4SSage Weil return r; 1263d14c5d2SYehuda Sadeh } 1273d14c5d2SYehuda Sadeh 1283d14c5d2SYehuda Sadeh /* 1293d14c5d2SYehuda Sadeh * requests 1303d14c5d2SYehuda Sadeh */ 1313d14c5d2SYehuda Sadeh void ceph_osdc_release_request(struct kref *kref) 1323d14c5d2SYehuda Sadeh { 1333d14c5d2SYehuda Sadeh struct ceph_osd_request *req = container_of(kref, 1343d14c5d2SYehuda Sadeh struct ceph_osd_request, 1353d14c5d2SYehuda Sadeh r_kref); 1363d14c5d2SYehuda Sadeh 1373d14c5d2SYehuda Sadeh if (req->r_request) 1383d14c5d2SYehuda Sadeh ceph_msg_put(req->r_request); 1393d14c5d2SYehuda Sadeh if (req->r_con_filling_msg) { 1409cbb1d72SAlex Elder dout("%s revoking msg %p from con %p\n", __func__, 1419cbb1d72SAlex Elder req->r_reply, req->r_con_filling_msg); 1428921d114SAlex Elder ceph_msg_revoke_incoming(req->r_reply); 1430d47766fSSage Weil req->r_con_filling_msg->ops->put(req->r_con_filling_msg); 1449cbb1d72SAlex Elder req->r_con_filling_msg = NULL; 1453d14c5d2SYehuda Sadeh } 146ab8cb34aSAlex Elder if (req->r_reply) 147ab8cb34aSAlex Elder ceph_msg_put(req->r_reply); 1483d14c5d2SYehuda Sadeh if (req->r_own_pages) 1493d14c5d2SYehuda Sadeh ceph_release_page_vector(req->r_pages, 1503d14c5d2SYehuda Sadeh req->r_num_pages); 1513d14c5d2SYehuda Sadeh ceph_put_snap_context(req->r_snapc); 152c885837fSAlex Elder ceph_pagelist_release(&req->r_trail); 1533d14c5d2SYehuda Sadeh if (req->r_mempool) 1543d14c5d2SYehuda Sadeh mempool_free(req, req->r_osdc->req_mempool); 1553d14c5d2SYehuda Sadeh else 1563d14c5d2SYehuda Sadeh kfree(req); 1573d14c5d2SYehuda Sadeh } 1583d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_release_request); 1593d14c5d2SYehuda Sadeh 1603d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, 1613d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 162ae7ca4a3SAlex Elder unsigned int num_op, 1633d14c5d2SYehuda Sadeh bool use_mempool, 16454a54007SAlex Elder gfp_t gfp_flags) 1653d14c5d2SYehuda Sadeh { 1663d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 1673d14c5d2SYehuda Sadeh struct ceph_msg *msg; 1683d14c5d2SYehuda Sadeh size_t msg_size = sizeof(struct ceph_osd_request_head); 1693d14c5d2SYehuda Sadeh 1703d14c5d2SYehuda Sadeh msg_size += num_op*sizeof(struct ceph_osd_op); 1713d14c5d2SYehuda Sadeh 1723d14c5d2SYehuda Sadeh if (use_mempool) { 1733d14c5d2SYehuda Sadeh req = mempool_alloc(osdc->req_mempool, gfp_flags); 1743d14c5d2SYehuda Sadeh memset(req, 0, sizeof(*req)); 1753d14c5d2SYehuda Sadeh } else { 1763d14c5d2SYehuda Sadeh req = kzalloc(sizeof(*req), gfp_flags); 1773d14c5d2SYehuda Sadeh } 1783d14c5d2SYehuda Sadeh if (req == NULL) 1793d14c5d2SYehuda Sadeh return NULL; 1803d14c5d2SYehuda Sadeh 1813d14c5d2SYehuda Sadeh req->r_osdc = osdc; 1823d14c5d2SYehuda Sadeh req->r_mempool = use_mempool; 1833d14c5d2SYehuda Sadeh 1843d14c5d2SYehuda Sadeh kref_init(&req->r_kref); 1853d14c5d2SYehuda Sadeh init_completion(&req->r_completion); 1863d14c5d2SYehuda Sadeh init_completion(&req->r_safe_completion); 187a978fa20SAlex Elder RB_CLEAR_NODE(&req->r_node); 1883d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&req->r_unsafe_item); 189a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&req->r_linger_item); 190a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&req->r_linger_osd); 191935b639aSSage Weil INIT_LIST_HEAD(&req->r_req_lru_item); 192cd43045cSSage Weil INIT_LIST_HEAD(&req->r_osd_item); 193cd43045cSSage Weil 1943d14c5d2SYehuda Sadeh /* create reply message */ 1953d14c5d2SYehuda Sadeh if (use_mempool) 1963d14c5d2SYehuda Sadeh msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0); 1973d14c5d2SYehuda Sadeh else 1983d14c5d2SYehuda Sadeh msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, 199b61c2763SSage Weil OSD_OPREPLY_FRONT_LEN, gfp_flags, true); 2003d14c5d2SYehuda Sadeh if (!msg) { 2013d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 2023d14c5d2SYehuda Sadeh return NULL; 2033d14c5d2SYehuda Sadeh } 2043d14c5d2SYehuda Sadeh req->r_reply = msg; 2053d14c5d2SYehuda Sadeh 206c885837fSAlex Elder ceph_pagelist_init(&req->r_trail); 207d50b409fSSage Weil 2083d14c5d2SYehuda Sadeh /* create request message; allow space for oid */ 209224736d9SStratos Psomadakis msg_size += MAX_OBJ_NAME_SIZE; 2103d14c5d2SYehuda Sadeh if (snapc) 2113d14c5d2SYehuda Sadeh msg_size += sizeof(u64) * snapc->num_snaps; 2123d14c5d2SYehuda Sadeh if (use_mempool) 2133d14c5d2SYehuda Sadeh msg = ceph_msgpool_get(&osdc->msgpool_op, 0); 2143d14c5d2SYehuda Sadeh else 215b61c2763SSage Weil msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size, gfp_flags, true); 2163d14c5d2SYehuda Sadeh if (!msg) { 2173d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 2183d14c5d2SYehuda Sadeh return NULL; 2193d14c5d2SYehuda Sadeh } 2203d14c5d2SYehuda Sadeh 2213d14c5d2SYehuda Sadeh memset(msg->front.iov_base, 0, msg->front.iov_len); 2223d14c5d2SYehuda Sadeh 2233d14c5d2SYehuda Sadeh req->r_request = msg; 2243d14c5d2SYehuda Sadeh 2253d14c5d2SYehuda Sadeh return req; 2263d14c5d2SYehuda Sadeh } 2273d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_alloc_request); 2283d14c5d2SYehuda Sadeh 2293d14c5d2SYehuda Sadeh static void osd_req_encode_op(struct ceph_osd_request *req, 2303d14c5d2SYehuda Sadeh struct ceph_osd_op *dst, 2313d14c5d2SYehuda Sadeh struct ceph_osd_req_op *src) 2323d14c5d2SYehuda Sadeh { 2333d14c5d2SYehuda Sadeh dst->op = cpu_to_le16(src->op); 2343d14c5d2SYehuda Sadeh 235065a68f9SAlex Elder switch (src->op) { 2363d14c5d2SYehuda Sadeh case CEPH_OSD_OP_READ: 2373d14c5d2SYehuda Sadeh case CEPH_OSD_OP_WRITE: 2383d14c5d2SYehuda Sadeh dst->extent.offset = 2393d14c5d2SYehuda Sadeh cpu_to_le64(src->extent.offset); 2403d14c5d2SYehuda Sadeh dst->extent.length = 2413d14c5d2SYehuda Sadeh cpu_to_le64(src->extent.length); 2423d14c5d2SYehuda Sadeh dst->extent.truncate_size = 2433d14c5d2SYehuda Sadeh cpu_to_le64(src->extent.truncate_size); 2443d14c5d2SYehuda Sadeh dst->extent.truncate_seq = 2453d14c5d2SYehuda Sadeh cpu_to_le32(src->extent.truncate_seq); 2463d14c5d2SYehuda Sadeh break; 2473d14c5d2SYehuda Sadeh 2483d14c5d2SYehuda Sadeh case CEPH_OSD_OP_GETXATTR: 2493d14c5d2SYehuda Sadeh case CEPH_OSD_OP_SETXATTR: 2503d14c5d2SYehuda Sadeh case CEPH_OSD_OP_CMPXATTR: 2513d14c5d2SYehuda Sadeh dst->xattr.name_len = cpu_to_le32(src->xattr.name_len); 2523d14c5d2SYehuda Sadeh dst->xattr.value_len = cpu_to_le32(src->xattr.value_len); 2533d14c5d2SYehuda Sadeh dst->xattr.cmp_op = src->xattr.cmp_op; 2543d14c5d2SYehuda Sadeh dst->xattr.cmp_mode = src->xattr.cmp_mode; 255c885837fSAlex Elder ceph_pagelist_append(&req->r_trail, src->xattr.name, 2563d14c5d2SYehuda Sadeh src->xattr.name_len); 257c885837fSAlex Elder ceph_pagelist_append(&req->r_trail, src->xattr.val, 2583d14c5d2SYehuda Sadeh src->xattr.value_len); 2593d14c5d2SYehuda Sadeh break; 2603d14c5d2SYehuda Sadeh case CEPH_OSD_OP_CALL: 2613d14c5d2SYehuda Sadeh dst->cls.class_len = src->cls.class_len; 2623d14c5d2SYehuda Sadeh dst->cls.method_len = src->cls.method_len; 2633d14c5d2SYehuda Sadeh dst->cls.indata_len = cpu_to_le32(src->cls.indata_len); 2643d14c5d2SYehuda Sadeh 265c885837fSAlex Elder ceph_pagelist_append(&req->r_trail, src->cls.class_name, 2663d14c5d2SYehuda Sadeh src->cls.class_len); 267c885837fSAlex Elder ceph_pagelist_append(&req->r_trail, src->cls.method_name, 2683d14c5d2SYehuda Sadeh src->cls.method_len); 269c885837fSAlex Elder ceph_pagelist_append(&req->r_trail, src->cls.indata, 2703d14c5d2SYehuda Sadeh src->cls.indata_len); 2713d14c5d2SYehuda Sadeh break; 2723d14c5d2SYehuda Sadeh case CEPH_OSD_OP_ROLLBACK: 2733d14c5d2SYehuda Sadeh dst->snap.snapid = cpu_to_le64(src->snap.snapid); 2743d14c5d2SYehuda Sadeh break; 2753d14c5d2SYehuda Sadeh case CEPH_OSD_OP_STARTSYNC: 2763d14c5d2SYehuda Sadeh break; 277a40c4f10SYehuda Sadeh case CEPH_OSD_OP_NOTIFY: 278a40c4f10SYehuda Sadeh { 279a40c4f10SYehuda Sadeh __le32 prot_ver = cpu_to_le32(src->watch.prot_ver); 280a40c4f10SYehuda Sadeh __le32 timeout = cpu_to_le32(src->watch.timeout); 281a40c4f10SYehuda Sadeh 282c885837fSAlex Elder ceph_pagelist_append(&req->r_trail, 283a40c4f10SYehuda Sadeh &prot_ver, sizeof(prot_ver)); 284c885837fSAlex Elder ceph_pagelist_append(&req->r_trail, 285a40c4f10SYehuda Sadeh &timeout, sizeof(timeout)); 286a40c4f10SYehuda Sadeh } 287a40c4f10SYehuda Sadeh case CEPH_OSD_OP_NOTIFY_ACK: 288a40c4f10SYehuda Sadeh case CEPH_OSD_OP_WATCH: 289a40c4f10SYehuda Sadeh dst->watch.cookie = cpu_to_le64(src->watch.cookie); 290a40c4f10SYehuda Sadeh dst->watch.ver = cpu_to_le64(src->watch.ver); 291a40c4f10SYehuda Sadeh dst->watch.flag = src->watch.flag; 292a40c4f10SYehuda Sadeh break; 2933d14c5d2SYehuda Sadeh default: 2943d14c5d2SYehuda Sadeh pr_err("unrecognized osd opcode %d\n", dst->op); 2953d14c5d2SYehuda Sadeh WARN_ON(1); 2963d14c5d2SYehuda Sadeh break; 2973d14c5d2SYehuda Sadeh } 2983d14c5d2SYehuda Sadeh dst->payload_len = cpu_to_le32(src->payload_len); 2993d14c5d2SYehuda Sadeh } 3003d14c5d2SYehuda Sadeh 3013d14c5d2SYehuda Sadeh /* 3023d14c5d2SYehuda Sadeh * build new request AND message 3033d14c5d2SYehuda Sadeh * 3043d14c5d2SYehuda Sadeh */ 3053d14c5d2SYehuda Sadeh void ceph_osdc_build_request(struct ceph_osd_request *req, 306ae7ca4a3SAlex Elder u64 off, u64 len, unsigned int num_op, 3073d14c5d2SYehuda Sadeh struct ceph_osd_req_op *src_ops, 3084d6b250bSAlex Elder struct ceph_snap_context *snapc, u64 snap_id, 309af77f26cSAlex Elder struct timespec *mtime) 3103d14c5d2SYehuda Sadeh { 3113d14c5d2SYehuda Sadeh struct ceph_msg *msg = req->r_request; 3123d14c5d2SYehuda Sadeh struct ceph_osd_request_head *head; 3133d14c5d2SYehuda Sadeh struct ceph_osd_req_op *src_op; 3143d14c5d2SYehuda Sadeh struct ceph_osd_op *op; 3153d14c5d2SYehuda Sadeh void *p; 3163d14c5d2SYehuda Sadeh size_t msg_size = sizeof(*head) + num_op*sizeof(*op); 3173d14c5d2SYehuda Sadeh int flags = req->r_flags; 3183d14c5d2SYehuda Sadeh u64 data_len = 0; 3193d14c5d2SYehuda Sadeh int i; 3203d14c5d2SYehuda Sadeh 321d178a9e7SAlex Elder WARN_ON((flags & (CEPH_OSD_FLAG_READ|CEPH_OSD_FLAG_WRITE)) == 0); 322d178a9e7SAlex Elder 3233d14c5d2SYehuda Sadeh head = msg->front.iov_base; 3244d6b250bSAlex Elder head->snapid = cpu_to_le64(snap_id); 3253d14c5d2SYehuda Sadeh op = (void *)(head + 1); 3263d14c5d2SYehuda Sadeh p = (void *)(op + num_op); 3273d14c5d2SYehuda Sadeh 3283d14c5d2SYehuda Sadeh req->r_snapc = ceph_get_snap_context(snapc); 3293d14c5d2SYehuda Sadeh 3303d14c5d2SYehuda Sadeh head->client_inc = cpu_to_le32(1); /* always, for now. */ 3313d14c5d2SYehuda Sadeh head->flags = cpu_to_le32(flags); 3323d14c5d2SYehuda Sadeh if (flags & CEPH_OSD_FLAG_WRITE) 3333d14c5d2SYehuda Sadeh ceph_encode_timespec(&head->mtime, mtime); 334ae7ca4a3SAlex Elder BUG_ON(num_op > (unsigned int) ((u16) -1)); 3353d14c5d2SYehuda Sadeh head->num_ops = cpu_to_le16(num_op); 3363d14c5d2SYehuda Sadeh 3373d14c5d2SYehuda Sadeh /* fill in oid */ 338af77f26cSAlex Elder head->object_len = cpu_to_le32(req->r_oid_len); 339af77f26cSAlex Elder memcpy(p, req->r_oid, req->r_oid_len); 340af77f26cSAlex Elder p += req->r_oid_len; 3413d14c5d2SYehuda Sadeh 3423d14c5d2SYehuda Sadeh src_op = src_ops; 343ae7ca4a3SAlex Elder while (num_op--) 344ae7ca4a3SAlex Elder osd_req_encode_op(req, op++, src_op++); 3453d14c5d2SYehuda Sadeh 346c885837fSAlex Elder data_len += req->r_trail.length; 3473d14c5d2SYehuda Sadeh 3483d14c5d2SYehuda Sadeh if (snapc) { 3493d14c5d2SYehuda Sadeh head->snap_seq = cpu_to_le64(snapc->seq); 3503d14c5d2SYehuda Sadeh head->num_snaps = cpu_to_le32(snapc->num_snaps); 3513d14c5d2SYehuda Sadeh for (i = 0; i < snapc->num_snaps; i++) { 3523d14c5d2SYehuda Sadeh put_unaligned_le64(snapc->snaps[i], p); 3533d14c5d2SYehuda Sadeh p += sizeof(u64); 3543d14c5d2SYehuda Sadeh } 3553d14c5d2SYehuda Sadeh } 3563d14c5d2SYehuda Sadeh 3573d14c5d2SYehuda Sadeh if (flags & CEPH_OSD_FLAG_WRITE) { 3583d14c5d2SYehuda Sadeh req->r_request->hdr.data_off = cpu_to_le16(off); 3590120be3cSAlex Elder req->r_request->hdr.data_len = cpu_to_le32(len + data_len); 3603d14c5d2SYehuda Sadeh } else if (data_len) { 3613d14c5d2SYehuda Sadeh req->r_request->hdr.data_off = 0; 3623d14c5d2SYehuda Sadeh req->r_request->hdr.data_len = cpu_to_le32(data_len); 3633d14c5d2SYehuda Sadeh } 3643d14c5d2SYehuda Sadeh 365c5c6b19dSSage Weil req->r_request->page_alignment = req->r_page_alignment; 366c5c6b19dSSage Weil 3673d14c5d2SYehuda Sadeh BUG_ON(p > msg->front.iov_base + msg->front.iov_len); 3683d14c5d2SYehuda Sadeh msg_size = p - msg->front.iov_base; 3693d14c5d2SYehuda Sadeh msg->front.iov_len = msg_size; 3703d14c5d2SYehuda Sadeh msg->hdr.front_len = cpu_to_le32(msg_size); 3713d14c5d2SYehuda Sadeh return; 3723d14c5d2SYehuda Sadeh } 3733d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_build_request); 3743d14c5d2SYehuda Sadeh 3753d14c5d2SYehuda Sadeh /* 3763d14c5d2SYehuda Sadeh * build new request AND message, calculate layout, and adjust file 3773d14c5d2SYehuda Sadeh * extent as needed. 3783d14c5d2SYehuda Sadeh * 3793d14c5d2SYehuda Sadeh * if the file was recently truncated, we include information about its 3803d14c5d2SYehuda Sadeh * old and new size so that the object can be updated appropriately. (we 3813d14c5d2SYehuda Sadeh * avoid synchronously deleting truncated objects because it's slow.) 3823d14c5d2SYehuda Sadeh * 3833d14c5d2SYehuda Sadeh * if @do_sync, include a 'startsync' command so that the osd will flush 3843d14c5d2SYehuda Sadeh * data quickly. 3853d14c5d2SYehuda Sadeh */ 3863d14c5d2SYehuda Sadeh struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, 3873d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 3883d14c5d2SYehuda Sadeh struct ceph_vino vino, 3893d14c5d2SYehuda Sadeh u64 off, u64 *plen, 3903d14c5d2SYehuda Sadeh int opcode, int flags, 3913d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 3923d14c5d2SYehuda Sadeh int do_sync, 3933d14c5d2SYehuda Sadeh u32 truncate_seq, 3943d14c5d2SYehuda Sadeh u64 truncate_size, 3953d14c5d2SYehuda Sadeh struct timespec *mtime, 396b7495fc2SSage Weil bool use_mempool, int num_reply, 397b7495fc2SSage Weil int page_align) 3983d14c5d2SYehuda Sadeh { 399ae7ca4a3SAlex Elder struct ceph_osd_req_op ops[2]; 4003d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 401ae7ca4a3SAlex Elder unsigned int num_op = 1; 4026816282dSSage Weil int r; 4033d14c5d2SYehuda Sadeh 404ae7ca4a3SAlex Elder memset(&ops, 0, sizeof ops); 405ae7ca4a3SAlex Elder 4063d14c5d2SYehuda Sadeh ops[0].op = opcode; 4073d14c5d2SYehuda Sadeh ops[0].extent.truncate_seq = truncate_seq; 4083d14c5d2SYehuda Sadeh ops[0].extent.truncate_size = truncate_size; 4093d14c5d2SYehuda Sadeh 4103d14c5d2SYehuda Sadeh if (do_sync) { 4113d14c5d2SYehuda Sadeh ops[1].op = CEPH_OSD_OP_STARTSYNC; 412ae7ca4a3SAlex Elder num_op++; 413ae7ca4a3SAlex Elder } 4143d14c5d2SYehuda Sadeh 415ae7ca4a3SAlex Elder req = ceph_osdc_alloc_request(osdc, snapc, num_op, use_mempool, 416ae7ca4a3SAlex Elder GFP_NOFS); 4174ad12621SSage Weil if (!req) 4186816282dSSage Weil return ERR_PTR(-ENOMEM); 419d178a9e7SAlex Elder req->r_flags = flags; 4203d14c5d2SYehuda Sadeh 4213d14c5d2SYehuda Sadeh /* calculate max write size */ 422e75b45cfSAlex Elder r = calc_layout(vino, layout, off, plen, req, ops); 4236816282dSSage Weil if (r < 0) 4246816282dSSage Weil return ERR_PTR(r); 4253d14c5d2SYehuda Sadeh req->r_file_layout = *layout; /* keep a copy */ 4263d14c5d2SYehuda Sadeh 4279bb0ce2bSSage Weil /* in case it differs from natural (file) alignment that 4289bb0ce2bSSage Weil calc_layout filled in for us */ 4299bb0ce2bSSage Weil req->r_num_pages = calc_pages_for(page_align, *plen); 430b7495fc2SSage Weil req->r_page_alignment = page_align; 431b7495fc2SSage Weil 432ae7ca4a3SAlex Elder ceph_osdc_build_request(req, off, *plen, num_op, ops, 433ae7ca4a3SAlex Elder snapc, vino.snap, mtime); 4343d14c5d2SYehuda Sadeh 4353d14c5d2SYehuda Sadeh return req; 4363d14c5d2SYehuda Sadeh } 4373d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_new_request); 4383d14c5d2SYehuda Sadeh 4393d14c5d2SYehuda Sadeh /* 4403d14c5d2SYehuda Sadeh * We keep osd requests in an rbtree, sorted by ->r_tid. 4413d14c5d2SYehuda Sadeh */ 4423d14c5d2SYehuda Sadeh static void __insert_request(struct ceph_osd_client *osdc, 4433d14c5d2SYehuda Sadeh struct ceph_osd_request *new) 4443d14c5d2SYehuda Sadeh { 4453d14c5d2SYehuda Sadeh struct rb_node **p = &osdc->requests.rb_node; 4463d14c5d2SYehuda Sadeh struct rb_node *parent = NULL; 4473d14c5d2SYehuda Sadeh struct ceph_osd_request *req = NULL; 4483d14c5d2SYehuda Sadeh 4493d14c5d2SYehuda Sadeh while (*p) { 4503d14c5d2SYehuda Sadeh parent = *p; 4513d14c5d2SYehuda Sadeh req = rb_entry(parent, struct ceph_osd_request, r_node); 4523d14c5d2SYehuda Sadeh if (new->r_tid < req->r_tid) 4533d14c5d2SYehuda Sadeh p = &(*p)->rb_left; 4543d14c5d2SYehuda Sadeh else if (new->r_tid > req->r_tid) 4553d14c5d2SYehuda Sadeh p = &(*p)->rb_right; 4563d14c5d2SYehuda Sadeh else 4573d14c5d2SYehuda Sadeh BUG(); 4583d14c5d2SYehuda Sadeh } 4593d14c5d2SYehuda Sadeh 4603d14c5d2SYehuda Sadeh rb_link_node(&new->r_node, parent, p); 4613d14c5d2SYehuda Sadeh rb_insert_color(&new->r_node, &osdc->requests); 4623d14c5d2SYehuda Sadeh } 4633d14c5d2SYehuda Sadeh 4643d14c5d2SYehuda Sadeh static struct ceph_osd_request *__lookup_request(struct ceph_osd_client *osdc, 4653d14c5d2SYehuda Sadeh u64 tid) 4663d14c5d2SYehuda Sadeh { 4673d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 4683d14c5d2SYehuda Sadeh struct rb_node *n = osdc->requests.rb_node; 4693d14c5d2SYehuda Sadeh 4703d14c5d2SYehuda Sadeh while (n) { 4713d14c5d2SYehuda Sadeh req = rb_entry(n, struct ceph_osd_request, r_node); 4723d14c5d2SYehuda Sadeh if (tid < req->r_tid) 4733d14c5d2SYehuda Sadeh n = n->rb_left; 4743d14c5d2SYehuda Sadeh else if (tid > req->r_tid) 4753d14c5d2SYehuda Sadeh n = n->rb_right; 4763d14c5d2SYehuda Sadeh else 4773d14c5d2SYehuda Sadeh return req; 4783d14c5d2SYehuda Sadeh } 4793d14c5d2SYehuda Sadeh return NULL; 4803d14c5d2SYehuda Sadeh } 4813d14c5d2SYehuda Sadeh 4823d14c5d2SYehuda Sadeh static struct ceph_osd_request * 4833d14c5d2SYehuda Sadeh __lookup_request_ge(struct ceph_osd_client *osdc, 4843d14c5d2SYehuda Sadeh u64 tid) 4853d14c5d2SYehuda Sadeh { 4863d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 4873d14c5d2SYehuda Sadeh struct rb_node *n = osdc->requests.rb_node; 4883d14c5d2SYehuda Sadeh 4893d14c5d2SYehuda Sadeh while (n) { 4903d14c5d2SYehuda Sadeh req = rb_entry(n, struct ceph_osd_request, r_node); 4913d14c5d2SYehuda Sadeh if (tid < req->r_tid) { 4923d14c5d2SYehuda Sadeh if (!n->rb_left) 4933d14c5d2SYehuda Sadeh return req; 4943d14c5d2SYehuda Sadeh n = n->rb_left; 4953d14c5d2SYehuda Sadeh } else if (tid > req->r_tid) { 4963d14c5d2SYehuda Sadeh n = n->rb_right; 4973d14c5d2SYehuda Sadeh } else { 4983d14c5d2SYehuda Sadeh return req; 4993d14c5d2SYehuda Sadeh } 5003d14c5d2SYehuda Sadeh } 5013d14c5d2SYehuda Sadeh return NULL; 5023d14c5d2SYehuda Sadeh } 5033d14c5d2SYehuda Sadeh 5046f6c7006SSage Weil /* 5056f6c7006SSage Weil * Resubmit requests pending on the given osd. 5066f6c7006SSage Weil */ 5076f6c7006SSage Weil static void __kick_osd_requests(struct ceph_osd_client *osdc, 5086f6c7006SSage Weil struct ceph_osd *osd) 5096f6c7006SSage Weil { 510a40c4f10SYehuda Sadeh struct ceph_osd_request *req, *nreq; 5116f6c7006SSage Weil int err; 5126f6c7006SSage Weil 5136f6c7006SSage Weil dout("__kick_osd_requests osd%d\n", osd->o_osd); 5146f6c7006SSage Weil err = __reset_osd(osdc, osd); 515685a7555SAlex Elder if (err) 5166f6c7006SSage Weil return; 5176f6c7006SSage Weil 5186f6c7006SSage Weil list_for_each_entry(req, &osd->o_requests, r_osd_item) { 5196f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_unsent); 5206f6c7006SSage Weil dout("requeued %p tid %llu osd%d\n", req, req->r_tid, 5216f6c7006SSage Weil osd->o_osd); 522a40c4f10SYehuda Sadeh if (!req->r_linger) 5236f6c7006SSage Weil req->r_flags |= CEPH_OSD_FLAG_RETRY; 5246f6c7006SSage Weil } 525a40c4f10SYehuda Sadeh 526a40c4f10SYehuda Sadeh list_for_each_entry_safe(req, nreq, &osd->o_linger_requests, 527a40c4f10SYehuda Sadeh r_linger_osd) { 52877f38e0eSSage Weil /* 52977f38e0eSSage Weil * reregister request prior to unregistering linger so 53077f38e0eSSage Weil * that r_osd is preserved. 53177f38e0eSSage Weil */ 53277f38e0eSSage Weil BUG_ON(!list_empty(&req->r_req_lru_item)); 533a40c4f10SYehuda Sadeh __register_request(osdc, req); 53477f38e0eSSage Weil list_add(&req->r_req_lru_item, &osdc->req_unsent); 53577f38e0eSSage Weil list_add(&req->r_osd_item, &req->r_osd->o_requests); 53677f38e0eSSage Weil __unregister_linger_request(osdc, req); 537a40c4f10SYehuda Sadeh dout("requeued lingering %p tid %llu osd%d\n", req, req->r_tid, 538a40c4f10SYehuda Sadeh osd->o_osd); 539a40c4f10SYehuda Sadeh } 5406f6c7006SSage Weil } 5416f6c7006SSage Weil 5423d14c5d2SYehuda Sadeh /* 5433d14c5d2SYehuda Sadeh * If the osd connection drops, we need to resubmit all requests. 5443d14c5d2SYehuda Sadeh */ 5453d14c5d2SYehuda Sadeh static void osd_reset(struct ceph_connection *con) 5463d14c5d2SYehuda Sadeh { 5473d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 5483d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc; 5493d14c5d2SYehuda Sadeh 5503d14c5d2SYehuda Sadeh if (!osd) 5513d14c5d2SYehuda Sadeh return; 5523d14c5d2SYehuda Sadeh dout("osd_reset osd%d\n", osd->o_osd); 5533d14c5d2SYehuda Sadeh osdc = osd->o_osdc; 5543d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 55583aff95eSSage Weil mutex_lock(&osdc->request_mutex); 55683aff95eSSage Weil __kick_osd_requests(osdc, osd); 55783aff95eSSage Weil mutex_unlock(&osdc->request_mutex); 5586f6c7006SSage Weil send_queued(osdc); 5593d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 5603d14c5d2SYehuda Sadeh } 5613d14c5d2SYehuda Sadeh 5623d14c5d2SYehuda Sadeh /* 5633d14c5d2SYehuda Sadeh * Track open sessions with osds. 5643d14c5d2SYehuda Sadeh */ 565e10006f8SAlex Elder static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum) 5663d14c5d2SYehuda Sadeh { 5673d14c5d2SYehuda Sadeh struct ceph_osd *osd; 5683d14c5d2SYehuda Sadeh 5693d14c5d2SYehuda Sadeh osd = kzalloc(sizeof(*osd), GFP_NOFS); 5703d14c5d2SYehuda Sadeh if (!osd) 5713d14c5d2SYehuda Sadeh return NULL; 5723d14c5d2SYehuda Sadeh 5733d14c5d2SYehuda Sadeh atomic_set(&osd->o_ref, 1); 5743d14c5d2SYehuda Sadeh osd->o_osdc = osdc; 575e10006f8SAlex Elder osd->o_osd = onum; 576f407731dSAlex Elder RB_CLEAR_NODE(&osd->o_node); 5773d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osd->o_requests); 578a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&osd->o_linger_requests); 5793d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osd->o_osd_lru); 5803d14c5d2SYehuda Sadeh osd->o_incarnation = 1; 5813d14c5d2SYehuda Sadeh 582b7a9e5ddSSage Weil ceph_con_init(&osd->o_con, osd, &osd_con_ops, &osdc->client->msgr); 5833d14c5d2SYehuda Sadeh 5843d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osd->o_keepalive_item); 5853d14c5d2SYehuda Sadeh return osd; 5863d14c5d2SYehuda Sadeh } 5873d14c5d2SYehuda Sadeh 5883d14c5d2SYehuda Sadeh static struct ceph_osd *get_osd(struct ceph_osd *osd) 5893d14c5d2SYehuda Sadeh { 5903d14c5d2SYehuda Sadeh if (atomic_inc_not_zero(&osd->o_ref)) { 5913d14c5d2SYehuda Sadeh dout("get_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref)-1, 5923d14c5d2SYehuda Sadeh atomic_read(&osd->o_ref)); 5933d14c5d2SYehuda Sadeh return osd; 5943d14c5d2SYehuda Sadeh } else { 5953d14c5d2SYehuda Sadeh dout("get_osd %p FAIL\n", osd); 5963d14c5d2SYehuda Sadeh return NULL; 5973d14c5d2SYehuda Sadeh } 5983d14c5d2SYehuda Sadeh } 5993d14c5d2SYehuda Sadeh 6003d14c5d2SYehuda Sadeh static void put_osd(struct ceph_osd *osd) 6013d14c5d2SYehuda Sadeh { 6023d14c5d2SYehuda Sadeh dout("put_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref), 6033d14c5d2SYehuda Sadeh atomic_read(&osd->o_ref) - 1); 604a255651dSAlex Elder if (atomic_dec_and_test(&osd->o_ref) && osd->o_auth.authorizer) { 6053d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osd->o_osdc->client->monc.auth; 6063d14c5d2SYehuda Sadeh 607a255651dSAlex Elder if (ac->ops && ac->ops->destroy_authorizer) 6086c4a1915SAlex Elder ac->ops->destroy_authorizer(ac, osd->o_auth.authorizer); 6093d14c5d2SYehuda Sadeh kfree(osd); 6103d14c5d2SYehuda Sadeh } 6113d14c5d2SYehuda Sadeh } 6123d14c5d2SYehuda Sadeh 6133d14c5d2SYehuda Sadeh /* 6143d14c5d2SYehuda Sadeh * remove an osd from our map 6153d14c5d2SYehuda Sadeh */ 6163d14c5d2SYehuda Sadeh static void __remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) 6173d14c5d2SYehuda Sadeh { 6183d14c5d2SYehuda Sadeh dout("__remove_osd %p\n", osd); 6193d14c5d2SYehuda Sadeh BUG_ON(!list_empty(&osd->o_requests)); 6203d14c5d2SYehuda Sadeh rb_erase(&osd->o_node, &osdc->osds); 6213d14c5d2SYehuda Sadeh list_del_init(&osd->o_osd_lru); 6223d14c5d2SYehuda Sadeh ceph_con_close(&osd->o_con); 6233d14c5d2SYehuda Sadeh put_osd(osd); 6243d14c5d2SYehuda Sadeh } 6253d14c5d2SYehuda Sadeh 626aca420bcSSage Weil static void remove_all_osds(struct ceph_osd_client *osdc) 627aca420bcSSage Weil { 628048a9d2dSJiaju Zhang dout("%s %p\n", __func__, osdc); 629aca420bcSSage Weil mutex_lock(&osdc->request_mutex); 630aca420bcSSage Weil while (!RB_EMPTY_ROOT(&osdc->osds)) { 631aca420bcSSage Weil struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds), 632aca420bcSSage Weil struct ceph_osd, o_node); 633aca420bcSSage Weil __remove_osd(osdc, osd); 634aca420bcSSage Weil } 635aca420bcSSage Weil mutex_unlock(&osdc->request_mutex); 636aca420bcSSage Weil } 637aca420bcSSage Weil 6383d14c5d2SYehuda Sadeh static void __move_osd_to_lru(struct ceph_osd_client *osdc, 6393d14c5d2SYehuda Sadeh struct ceph_osd *osd) 6403d14c5d2SYehuda Sadeh { 6413d14c5d2SYehuda Sadeh dout("__move_osd_to_lru %p\n", osd); 6423d14c5d2SYehuda Sadeh BUG_ON(!list_empty(&osd->o_osd_lru)); 6433d14c5d2SYehuda Sadeh list_add_tail(&osd->o_osd_lru, &osdc->osd_lru); 6443d14c5d2SYehuda Sadeh osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl * HZ; 6453d14c5d2SYehuda Sadeh } 6463d14c5d2SYehuda Sadeh 6473d14c5d2SYehuda Sadeh static void __remove_osd_from_lru(struct ceph_osd *osd) 6483d14c5d2SYehuda Sadeh { 6493d14c5d2SYehuda Sadeh dout("__remove_osd_from_lru %p\n", osd); 6503d14c5d2SYehuda Sadeh if (!list_empty(&osd->o_osd_lru)) 6513d14c5d2SYehuda Sadeh list_del_init(&osd->o_osd_lru); 6523d14c5d2SYehuda Sadeh } 6533d14c5d2SYehuda Sadeh 654aca420bcSSage Weil static void remove_old_osds(struct ceph_osd_client *osdc) 6553d14c5d2SYehuda Sadeh { 6563d14c5d2SYehuda Sadeh struct ceph_osd *osd, *nosd; 6573d14c5d2SYehuda Sadeh 6583d14c5d2SYehuda Sadeh dout("__remove_old_osds %p\n", osdc); 6593d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 6603d14c5d2SYehuda Sadeh list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { 661aca420bcSSage Weil if (time_before(jiffies, osd->lru_ttl)) 6623d14c5d2SYehuda Sadeh break; 6633d14c5d2SYehuda Sadeh __remove_osd(osdc, osd); 6643d14c5d2SYehuda Sadeh } 6653d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 6663d14c5d2SYehuda Sadeh } 6673d14c5d2SYehuda Sadeh 6683d14c5d2SYehuda Sadeh /* 6693d14c5d2SYehuda Sadeh * reset osd connect 6703d14c5d2SYehuda Sadeh */ 6713d14c5d2SYehuda Sadeh static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) 6723d14c5d2SYehuda Sadeh { 673c3acb181SAlex Elder struct ceph_entity_addr *peer_addr; 6743d14c5d2SYehuda Sadeh 6753d14c5d2SYehuda Sadeh dout("__reset_osd %p osd%d\n", osd, osd->o_osd); 676a40c4f10SYehuda Sadeh if (list_empty(&osd->o_requests) && 677a40c4f10SYehuda Sadeh list_empty(&osd->o_linger_requests)) { 6783d14c5d2SYehuda Sadeh __remove_osd(osdc, osd); 679c3acb181SAlex Elder 680c3acb181SAlex Elder return -ENODEV; 681c3acb181SAlex Elder } 682c3acb181SAlex Elder 683c3acb181SAlex Elder peer_addr = &osdc->osdmap->osd_addr[osd->o_osd]; 684c3acb181SAlex Elder if (!memcmp(peer_addr, &osd->o_con.peer_addr, sizeof (*peer_addr)) && 6853d14c5d2SYehuda Sadeh !ceph_con_opened(&osd->o_con)) { 686c3acb181SAlex Elder struct ceph_osd_request *req; 687c3acb181SAlex Elder 6883d14c5d2SYehuda Sadeh dout(" osd addr hasn't changed and connection never opened," 6893d14c5d2SYehuda Sadeh " letting msgr retry"); 6903d14c5d2SYehuda Sadeh /* touch each r_stamp for handle_timeout()'s benfit */ 6913d14c5d2SYehuda Sadeh list_for_each_entry(req, &osd->o_requests, r_osd_item) 6923d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 693c3acb181SAlex Elder 694c3acb181SAlex Elder return -EAGAIN; 6953d14c5d2SYehuda Sadeh } 696c3acb181SAlex Elder 697c3acb181SAlex Elder ceph_con_close(&osd->o_con); 698c3acb181SAlex Elder ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, peer_addr); 699c3acb181SAlex Elder osd->o_incarnation++; 700c3acb181SAlex Elder 701c3acb181SAlex Elder return 0; 7023d14c5d2SYehuda Sadeh } 7033d14c5d2SYehuda Sadeh 7043d14c5d2SYehuda Sadeh static void __insert_osd(struct ceph_osd_client *osdc, struct ceph_osd *new) 7053d14c5d2SYehuda Sadeh { 7063d14c5d2SYehuda Sadeh struct rb_node **p = &osdc->osds.rb_node; 7073d14c5d2SYehuda Sadeh struct rb_node *parent = NULL; 7083d14c5d2SYehuda Sadeh struct ceph_osd *osd = NULL; 7093d14c5d2SYehuda Sadeh 710aca420bcSSage Weil dout("__insert_osd %p osd%d\n", new, new->o_osd); 7113d14c5d2SYehuda Sadeh while (*p) { 7123d14c5d2SYehuda Sadeh parent = *p; 7133d14c5d2SYehuda Sadeh osd = rb_entry(parent, struct ceph_osd, o_node); 7143d14c5d2SYehuda Sadeh if (new->o_osd < osd->o_osd) 7153d14c5d2SYehuda Sadeh p = &(*p)->rb_left; 7163d14c5d2SYehuda Sadeh else if (new->o_osd > osd->o_osd) 7173d14c5d2SYehuda Sadeh p = &(*p)->rb_right; 7183d14c5d2SYehuda Sadeh else 7193d14c5d2SYehuda Sadeh BUG(); 7203d14c5d2SYehuda Sadeh } 7213d14c5d2SYehuda Sadeh 7223d14c5d2SYehuda Sadeh rb_link_node(&new->o_node, parent, p); 7233d14c5d2SYehuda Sadeh rb_insert_color(&new->o_node, &osdc->osds); 7243d14c5d2SYehuda Sadeh } 7253d14c5d2SYehuda Sadeh 7263d14c5d2SYehuda Sadeh static struct ceph_osd *__lookup_osd(struct ceph_osd_client *osdc, int o) 7273d14c5d2SYehuda Sadeh { 7283d14c5d2SYehuda Sadeh struct ceph_osd *osd; 7293d14c5d2SYehuda Sadeh struct rb_node *n = osdc->osds.rb_node; 7303d14c5d2SYehuda Sadeh 7313d14c5d2SYehuda Sadeh while (n) { 7323d14c5d2SYehuda Sadeh osd = rb_entry(n, struct ceph_osd, o_node); 7333d14c5d2SYehuda Sadeh if (o < osd->o_osd) 7343d14c5d2SYehuda Sadeh n = n->rb_left; 7353d14c5d2SYehuda Sadeh else if (o > osd->o_osd) 7363d14c5d2SYehuda Sadeh n = n->rb_right; 7373d14c5d2SYehuda Sadeh else 7383d14c5d2SYehuda Sadeh return osd; 7393d14c5d2SYehuda Sadeh } 7403d14c5d2SYehuda Sadeh return NULL; 7413d14c5d2SYehuda Sadeh } 7423d14c5d2SYehuda Sadeh 7433d14c5d2SYehuda Sadeh static void __schedule_osd_timeout(struct ceph_osd_client *osdc) 7443d14c5d2SYehuda Sadeh { 7453d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->timeout_work, 7463d14c5d2SYehuda Sadeh osdc->client->options->osd_keepalive_timeout * HZ); 7473d14c5d2SYehuda Sadeh } 7483d14c5d2SYehuda Sadeh 7493d14c5d2SYehuda Sadeh static void __cancel_osd_timeout(struct ceph_osd_client *osdc) 7503d14c5d2SYehuda Sadeh { 7513d14c5d2SYehuda Sadeh cancel_delayed_work(&osdc->timeout_work); 7523d14c5d2SYehuda Sadeh } 7533d14c5d2SYehuda Sadeh 7543d14c5d2SYehuda Sadeh /* 7553d14c5d2SYehuda Sadeh * Register request, assign tid. If this is the first request, set up 7563d14c5d2SYehuda Sadeh * the timeout event. 7573d14c5d2SYehuda Sadeh */ 758a40c4f10SYehuda Sadeh static void __register_request(struct ceph_osd_client *osdc, 7593d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 7603d14c5d2SYehuda Sadeh { 7613d14c5d2SYehuda Sadeh req->r_tid = ++osdc->last_tid; 7623d14c5d2SYehuda Sadeh req->r_request->hdr.tid = cpu_to_le64(req->r_tid); 76377f38e0eSSage Weil dout("__register_request %p tid %lld\n", req, req->r_tid); 7643d14c5d2SYehuda Sadeh __insert_request(osdc, req); 7653d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 7663d14c5d2SYehuda Sadeh osdc->num_requests++; 7673d14c5d2SYehuda Sadeh if (osdc->num_requests == 1) { 7683d14c5d2SYehuda Sadeh dout(" first request, scheduling timeout\n"); 7693d14c5d2SYehuda Sadeh __schedule_osd_timeout(osdc); 7703d14c5d2SYehuda Sadeh } 771a40c4f10SYehuda Sadeh } 772a40c4f10SYehuda Sadeh 773a40c4f10SYehuda Sadeh static void register_request(struct ceph_osd_client *osdc, 774a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 775a40c4f10SYehuda Sadeh { 776a40c4f10SYehuda Sadeh mutex_lock(&osdc->request_mutex); 777a40c4f10SYehuda Sadeh __register_request(osdc, req); 7783d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 7793d14c5d2SYehuda Sadeh } 7803d14c5d2SYehuda Sadeh 7813d14c5d2SYehuda Sadeh /* 7823d14c5d2SYehuda Sadeh * called under osdc->request_mutex 7833d14c5d2SYehuda Sadeh */ 7843d14c5d2SYehuda Sadeh static void __unregister_request(struct ceph_osd_client *osdc, 7853d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 7863d14c5d2SYehuda Sadeh { 78735f9f8a0SSage Weil if (RB_EMPTY_NODE(&req->r_node)) { 78835f9f8a0SSage Weil dout("__unregister_request %p tid %lld not registered\n", 78935f9f8a0SSage Weil req, req->r_tid); 79035f9f8a0SSage Weil return; 79135f9f8a0SSage Weil } 79235f9f8a0SSage Weil 7933d14c5d2SYehuda Sadeh dout("__unregister_request %p tid %lld\n", req, req->r_tid); 7943d14c5d2SYehuda Sadeh rb_erase(&req->r_node, &osdc->requests); 7953d14c5d2SYehuda Sadeh osdc->num_requests--; 7963d14c5d2SYehuda Sadeh 7973d14c5d2SYehuda Sadeh if (req->r_osd) { 7983d14c5d2SYehuda Sadeh /* make sure the original request isn't in flight. */ 7996740a845SAlex Elder ceph_msg_revoke(req->r_request); 8003d14c5d2SYehuda Sadeh 8013d14c5d2SYehuda Sadeh list_del_init(&req->r_osd_item); 802a40c4f10SYehuda Sadeh if (list_empty(&req->r_osd->o_requests) && 803a40c4f10SYehuda Sadeh list_empty(&req->r_osd->o_linger_requests)) { 804a40c4f10SYehuda Sadeh dout("moving osd to %p lru\n", req->r_osd); 8053d14c5d2SYehuda Sadeh __move_osd_to_lru(osdc, req->r_osd); 806a40c4f10SYehuda Sadeh } 807fbdb9190SSage Weil if (list_empty(&req->r_linger_item)) 8083d14c5d2SYehuda Sadeh req->r_osd = NULL; 8093d14c5d2SYehuda Sadeh } 8103d14c5d2SYehuda Sadeh 8117d5f2481SAlex Elder list_del_init(&req->r_req_lru_item); 8123d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 8133d14c5d2SYehuda Sadeh 8143d14c5d2SYehuda Sadeh if (osdc->num_requests == 0) { 8153d14c5d2SYehuda Sadeh dout(" no requests, canceling timeout\n"); 8163d14c5d2SYehuda Sadeh __cancel_osd_timeout(osdc); 8173d14c5d2SYehuda Sadeh } 8183d14c5d2SYehuda Sadeh } 8193d14c5d2SYehuda Sadeh 8203d14c5d2SYehuda Sadeh /* 8213d14c5d2SYehuda Sadeh * Cancel a previously queued request message 8223d14c5d2SYehuda Sadeh */ 8233d14c5d2SYehuda Sadeh static void __cancel_request(struct ceph_osd_request *req) 8243d14c5d2SYehuda Sadeh { 8253d14c5d2SYehuda Sadeh if (req->r_sent && req->r_osd) { 8266740a845SAlex Elder ceph_msg_revoke(req->r_request); 8273d14c5d2SYehuda Sadeh req->r_sent = 0; 8283d14c5d2SYehuda Sadeh } 8293d14c5d2SYehuda Sadeh } 8303d14c5d2SYehuda Sadeh 831a40c4f10SYehuda Sadeh static void __register_linger_request(struct ceph_osd_client *osdc, 832a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 833a40c4f10SYehuda Sadeh { 834a40c4f10SYehuda Sadeh dout("__register_linger_request %p\n", req); 835a40c4f10SYehuda Sadeh list_add_tail(&req->r_linger_item, &osdc->req_linger); 8366194ea89SSage Weil if (req->r_osd) 8376194ea89SSage Weil list_add_tail(&req->r_linger_osd, 8386194ea89SSage Weil &req->r_osd->o_linger_requests); 839a40c4f10SYehuda Sadeh } 840a40c4f10SYehuda Sadeh 841a40c4f10SYehuda Sadeh static void __unregister_linger_request(struct ceph_osd_client *osdc, 842a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 843a40c4f10SYehuda Sadeh { 844a40c4f10SYehuda Sadeh dout("__unregister_linger_request %p\n", req); 845a40c4f10SYehuda Sadeh list_del_init(&req->r_linger_item); 84661c74035SAlex Elder if (req->r_osd) { 847a40c4f10SYehuda Sadeh list_del_init(&req->r_linger_osd); 848a40c4f10SYehuda Sadeh 849a40c4f10SYehuda Sadeh if (list_empty(&req->r_osd->o_requests) && 850a40c4f10SYehuda Sadeh list_empty(&req->r_osd->o_linger_requests)) { 851a40c4f10SYehuda Sadeh dout("moving osd to %p lru\n", req->r_osd); 852a40c4f10SYehuda Sadeh __move_osd_to_lru(osdc, req->r_osd); 853a40c4f10SYehuda Sadeh } 854fbdb9190SSage Weil if (list_empty(&req->r_osd_item)) 855a40c4f10SYehuda Sadeh req->r_osd = NULL; 856a40c4f10SYehuda Sadeh } 857a40c4f10SYehuda Sadeh } 858a40c4f10SYehuda Sadeh 859a40c4f10SYehuda Sadeh void ceph_osdc_unregister_linger_request(struct ceph_osd_client *osdc, 860a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 861a40c4f10SYehuda Sadeh { 862a40c4f10SYehuda Sadeh mutex_lock(&osdc->request_mutex); 863a40c4f10SYehuda Sadeh if (req->r_linger) { 864a40c4f10SYehuda Sadeh __unregister_linger_request(osdc, req); 865a40c4f10SYehuda Sadeh ceph_osdc_put_request(req); 866a40c4f10SYehuda Sadeh } 867a40c4f10SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 868a40c4f10SYehuda Sadeh } 869a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_unregister_linger_request); 870a40c4f10SYehuda Sadeh 871a40c4f10SYehuda Sadeh void ceph_osdc_set_request_linger(struct ceph_osd_client *osdc, 872a40c4f10SYehuda Sadeh struct ceph_osd_request *req) 873a40c4f10SYehuda Sadeh { 874a40c4f10SYehuda Sadeh if (!req->r_linger) { 875a40c4f10SYehuda Sadeh dout("set_request_linger %p\n", req); 876a40c4f10SYehuda Sadeh req->r_linger = 1; 877a40c4f10SYehuda Sadeh /* 878a40c4f10SYehuda Sadeh * caller is now responsible for calling 879a40c4f10SYehuda Sadeh * unregister_linger_request 880a40c4f10SYehuda Sadeh */ 881a40c4f10SYehuda Sadeh ceph_osdc_get_request(req); 882a40c4f10SYehuda Sadeh } 883a40c4f10SYehuda Sadeh } 884a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_set_request_linger); 885a40c4f10SYehuda Sadeh 8863d14c5d2SYehuda Sadeh /* 8873d14c5d2SYehuda Sadeh * Pick an osd (the first 'up' osd in the pg), allocate the osd struct 8883d14c5d2SYehuda Sadeh * (as needed), and set the request r_osd appropriately. If there is 88925985edcSLucas De Marchi * no up osd, set r_osd to NULL. Move the request to the appropriate list 8906f6c7006SSage Weil * (unsent, homeless) or leave on in-flight lru. 8913d14c5d2SYehuda Sadeh * 8923d14c5d2SYehuda Sadeh * Return 0 if unchanged, 1 if changed, or negative on error. 8933d14c5d2SYehuda Sadeh * 8943d14c5d2SYehuda Sadeh * Caller should hold map_sem for read and request_mutex. 8953d14c5d2SYehuda Sadeh */ 8966f6c7006SSage Weil static int __map_request(struct ceph_osd_client *osdc, 89738d6453cSSage Weil struct ceph_osd_request *req, int force_resend) 8983d14c5d2SYehuda Sadeh { 8993d14c5d2SYehuda Sadeh struct ceph_osd_request_head *reqhead = req->r_request->front.iov_base; 9003d14c5d2SYehuda Sadeh struct ceph_pg pgid; 9013d14c5d2SYehuda Sadeh int acting[CEPH_PG_MAX_SIZE]; 9023d14c5d2SYehuda Sadeh int o = -1, num = 0; 9033d14c5d2SYehuda Sadeh int err; 9043d14c5d2SYehuda Sadeh 9056f6c7006SSage Weil dout("map_request %p tid %lld\n", req, req->r_tid); 9063d14c5d2SYehuda Sadeh err = ceph_calc_object_layout(&reqhead->layout, req->r_oid, 9073d14c5d2SYehuda Sadeh &req->r_file_layout, osdc->osdmap); 9086f6c7006SSage Weil if (err) { 9096f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_notarget); 9103d14c5d2SYehuda Sadeh return err; 9116f6c7006SSage Weil } 9123d14c5d2SYehuda Sadeh pgid = reqhead->layout.ol_pgid; 9133d14c5d2SYehuda Sadeh req->r_pgid = pgid; 9143d14c5d2SYehuda Sadeh 9153d14c5d2SYehuda Sadeh err = ceph_calc_pg_acting(osdc->osdmap, pgid, acting); 9163d14c5d2SYehuda Sadeh if (err > 0) { 9173d14c5d2SYehuda Sadeh o = acting[0]; 9183d14c5d2SYehuda Sadeh num = err; 9193d14c5d2SYehuda Sadeh } 9203d14c5d2SYehuda Sadeh 92138d6453cSSage Weil if ((!force_resend && 92238d6453cSSage Weil req->r_osd && req->r_osd->o_osd == o && 9233d14c5d2SYehuda Sadeh req->r_sent >= req->r_osd->o_incarnation && 9243d14c5d2SYehuda Sadeh req->r_num_pg_osds == num && 9253d14c5d2SYehuda Sadeh memcmp(req->r_pg_osds, acting, sizeof(acting[0])*num) == 0) || 9263d14c5d2SYehuda Sadeh (req->r_osd == NULL && o == -1)) 9273d14c5d2SYehuda Sadeh return 0; /* no change */ 9283d14c5d2SYehuda Sadeh 9296f6c7006SSage Weil dout("map_request tid %llu pgid %d.%x osd%d (was osd%d)\n", 9303d14c5d2SYehuda Sadeh req->r_tid, le32_to_cpu(pgid.pool), le16_to_cpu(pgid.ps), o, 9313d14c5d2SYehuda Sadeh req->r_osd ? req->r_osd->o_osd : -1); 9323d14c5d2SYehuda Sadeh 9333d14c5d2SYehuda Sadeh /* record full pg acting set */ 9343d14c5d2SYehuda Sadeh memcpy(req->r_pg_osds, acting, sizeof(acting[0]) * num); 9353d14c5d2SYehuda Sadeh req->r_num_pg_osds = num; 9363d14c5d2SYehuda Sadeh 9373d14c5d2SYehuda Sadeh if (req->r_osd) { 9383d14c5d2SYehuda Sadeh __cancel_request(req); 9393d14c5d2SYehuda Sadeh list_del_init(&req->r_osd_item); 9403d14c5d2SYehuda Sadeh req->r_osd = NULL; 9413d14c5d2SYehuda Sadeh } 9423d14c5d2SYehuda Sadeh 9433d14c5d2SYehuda Sadeh req->r_osd = __lookup_osd(osdc, o); 9443d14c5d2SYehuda Sadeh if (!req->r_osd && o >= 0) { 9453d14c5d2SYehuda Sadeh err = -ENOMEM; 946e10006f8SAlex Elder req->r_osd = create_osd(osdc, o); 9476f6c7006SSage Weil if (!req->r_osd) { 9486f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_notarget); 9493d14c5d2SYehuda Sadeh goto out; 9506f6c7006SSage Weil } 9513d14c5d2SYehuda Sadeh 9526f6c7006SSage Weil dout("map_request osd %p is osd%d\n", req->r_osd, o); 9533d14c5d2SYehuda Sadeh __insert_osd(osdc, req->r_osd); 9543d14c5d2SYehuda Sadeh 955b7a9e5ddSSage Weil ceph_con_open(&req->r_osd->o_con, 956b7a9e5ddSSage Weil CEPH_ENTITY_TYPE_OSD, o, 957b7a9e5ddSSage Weil &osdc->osdmap->osd_addr[o]); 9583d14c5d2SYehuda Sadeh } 9593d14c5d2SYehuda Sadeh 9603d14c5d2SYehuda Sadeh if (req->r_osd) { 9613d14c5d2SYehuda Sadeh __remove_osd_from_lru(req->r_osd); 9623d14c5d2SYehuda Sadeh list_add(&req->r_osd_item, &req->r_osd->o_requests); 9636f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_unsent); 9646f6c7006SSage Weil } else { 9656f6c7006SSage Weil list_move(&req->r_req_lru_item, &osdc->req_notarget); 9663d14c5d2SYehuda Sadeh } 9673d14c5d2SYehuda Sadeh err = 1; /* osd or pg changed */ 9683d14c5d2SYehuda Sadeh 9693d14c5d2SYehuda Sadeh out: 9703d14c5d2SYehuda Sadeh return err; 9713d14c5d2SYehuda Sadeh } 9723d14c5d2SYehuda Sadeh 9733d14c5d2SYehuda Sadeh /* 9743d14c5d2SYehuda Sadeh * caller should hold map_sem (for read) and request_mutex 9753d14c5d2SYehuda Sadeh */ 97656e925b6SSage Weil static void __send_request(struct ceph_osd_client *osdc, 9773d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 9783d14c5d2SYehuda Sadeh { 9793d14c5d2SYehuda Sadeh struct ceph_osd_request_head *reqhead; 9803d14c5d2SYehuda Sadeh 9813d14c5d2SYehuda Sadeh dout("send_request %p tid %llu to osd%d flags %d\n", 9823d14c5d2SYehuda Sadeh req, req->r_tid, req->r_osd->o_osd, req->r_flags); 9833d14c5d2SYehuda Sadeh 9843d14c5d2SYehuda Sadeh reqhead = req->r_request->front.iov_base; 9853d14c5d2SYehuda Sadeh reqhead->osdmap_epoch = cpu_to_le32(osdc->osdmap->epoch); 9863d14c5d2SYehuda Sadeh reqhead->flags |= cpu_to_le32(req->r_flags); /* e.g., RETRY */ 9873d14c5d2SYehuda Sadeh reqhead->reassert_version = req->r_reassert_version; 9883d14c5d2SYehuda Sadeh 9893d14c5d2SYehuda Sadeh req->r_stamp = jiffies; 9903d14c5d2SYehuda Sadeh list_move_tail(&req->r_req_lru_item, &osdc->req_lru); 9913d14c5d2SYehuda Sadeh 9923d14c5d2SYehuda Sadeh ceph_msg_get(req->r_request); /* send consumes a ref */ 9933d14c5d2SYehuda Sadeh ceph_con_send(&req->r_osd->o_con, req->r_request); 9943d14c5d2SYehuda Sadeh req->r_sent = req->r_osd->o_incarnation; 9953d14c5d2SYehuda Sadeh } 9963d14c5d2SYehuda Sadeh 9973d14c5d2SYehuda Sadeh /* 9986f6c7006SSage Weil * Send any requests in the queue (req_unsent). 9996f6c7006SSage Weil */ 10006f6c7006SSage Weil static void send_queued(struct ceph_osd_client *osdc) 10016f6c7006SSage Weil { 10026f6c7006SSage Weil struct ceph_osd_request *req, *tmp; 10036f6c7006SSage Weil 10046f6c7006SSage Weil dout("send_queued\n"); 10056f6c7006SSage Weil mutex_lock(&osdc->request_mutex); 10066f6c7006SSage Weil list_for_each_entry_safe(req, tmp, &osdc->req_unsent, r_req_lru_item) { 10076f6c7006SSage Weil __send_request(osdc, req); 10086f6c7006SSage Weil } 10096f6c7006SSage Weil mutex_unlock(&osdc->request_mutex); 10106f6c7006SSage Weil } 10116f6c7006SSage Weil 10126f6c7006SSage Weil /* 10133d14c5d2SYehuda Sadeh * Timeout callback, called every N seconds when 1 or more osd 10143d14c5d2SYehuda Sadeh * requests has been active for more than N seconds. When this 10153d14c5d2SYehuda Sadeh * happens, we ping all OSDs with requests who have timed out to 10163d14c5d2SYehuda Sadeh * ensure any communications channel reset is detected. Reset the 10173d14c5d2SYehuda Sadeh * request timeouts another N seconds in the future as we go. 10183d14c5d2SYehuda Sadeh * Reschedule the timeout event another N seconds in future (unless 10193d14c5d2SYehuda Sadeh * there are no open requests). 10203d14c5d2SYehuda Sadeh */ 10213d14c5d2SYehuda Sadeh static void handle_timeout(struct work_struct *work) 10223d14c5d2SYehuda Sadeh { 10233d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 10243d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, timeout_work.work); 102583aff95eSSage Weil struct ceph_osd_request *req; 10263d14c5d2SYehuda Sadeh struct ceph_osd *osd; 10273d14c5d2SYehuda Sadeh unsigned long keepalive = 10283d14c5d2SYehuda Sadeh osdc->client->options->osd_keepalive_timeout * HZ; 10293d14c5d2SYehuda Sadeh struct list_head slow_osds; 10303d14c5d2SYehuda Sadeh dout("timeout\n"); 10313d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 10323d14c5d2SYehuda Sadeh 10333d14c5d2SYehuda Sadeh ceph_monc_request_next_osdmap(&osdc->client->monc); 10343d14c5d2SYehuda Sadeh 10353d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 10363d14c5d2SYehuda Sadeh 10373d14c5d2SYehuda Sadeh /* 10383d14c5d2SYehuda Sadeh * ping osds that are a bit slow. this ensures that if there 10393d14c5d2SYehuda Sadeh * is a break in the TCP connection we will notice, and reopen 10403d14c5d2SYehuda Sadeh * a connection with that osd (from the fault callback). 10413d14c5d2SYehuda Sadeh */ 10423d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&slow_osds); 10433d14c5d2SYehuda Sadeh list_for_each_entry(req, &osdc->req_lru, r_req_lru_item) { 10443d14c5d2SYehuda Sadeh if (time_before(jiffies, req->r_stamp + keepalive)) 10453d14c5d2SYehuda Sadeh break; 10463d14c5d2SYehuda Sadeh 10473d14c5d2SYehuda Sadeh osd = req->r_osd; 10483d14c5d2SYehuda Sadeh BUG_ON(!osd); 10493d14c5d2SYehuda Sadeh dout(" tid %llu is slow, will send keepalive on osd%d\n", 10503d14c5d2SYehuda Sadeh req->r_tid, osd->o_osd); 10513d14c5d2SYehuda Sadeh list_move_tail(&osd->o_keepalive_item, &slow_osds); 10523d14c5d2SYehuda Sadeh } 10533d14c5d2SYehuda Sadeh while (!list_empty(&slow_osds)) { 10543d14c5d2SYehuda Sadeh osd = list_entry(slow_osds.next, struct ceph_osd, 10553d14c5d2SYehuda Sadeh o_keepalive_item); 10563d14c5d2SYehuda Sadeh list_del_init(&osd->o_keepalive_item); 10573d14c5d2SYehuda Sadeh ceph_con_keepalive(&osd->o_con); 10583d14c5d2SYehuda Sadeh } 10593d14c5d2SYehuda Sadeh 10603d14c5d2SYehuda Sadeh __schedule_osd_timeout(osdc); 10613d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 10626f6c7006SSage Weil send_queued(osdc); 10633d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 10643d14c5d2SYehuda Sadeh } 10653d14c5d2SYehuda Sadeh 10663d14c5d2SYehuda Sadeh static void handle_osds_timeout(struct work_struct *work) 10673d14c5d2SYehuda Sadeh { 10683d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = 10693d14c5d2SYehuda Sadeh container_of(work, struct ceph_osd_client, 10703d14c5d2SYehuda Sadeh osds_timeout_work.work); 10713d14c5d2SYehuda Sadeh unsigned long delay = 10723d14c5d2SYehuda Sadeh osdc->client->options->osd_idle_ttl * HZ >> 2; 10733d14c5d2SYehuda Sadeh 10743d14c5d2SYehuda Sadeh dout("osds timeout\n"); 10753d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 1076aca420bcSSage Weil remove_old_osds(osdc); 10773d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 10783d14c5d2SYehuda Sadeh 10793d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->osds_timeout_work, 10803d14c5d2SYehuda Sadeh round_jiffies_relative(delay)); 10813d14c5d2SYehuda Sadeh } 10823d14c5d2SYehuda Sadeh 108325845472SSage Weil static void complete_request(struct ceph_osd_request *req) 108425845472SSage Weil { 108525845472SSage Weil if (req->r_safe_callback) 108625845472SSage Weil req->r_safe_callback(req, NULL); 108725845472SSage Weil complete_all(&req->r_safe_completion); /* fsync waiter */ 108825845472SSage Weil } 108925845472SSage Weil 10903d14c5d2SYehuda Sadeh /* 10913d14c5d2SYehuda Sadeh * handle osd op reply. either call the callback if it is specified, 10923d14c5d2SYehuda Sadeh * or do the completion to wake up the waiting thread. 10933d14c5d2SYehuda Sadeh */ 10943d14c5d2SYehuda Sadeh static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg, 10953d14c5d2SYehuda Sadeh struct ceph_connection *con) 10963d14c5d2SYehuda Sadeh { 10973d14c5d2SYehuda Sadeh struct ceph_osd_reply_head *rhead = msg->front.iov_base; 10983d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 10993d14c5d2SYehuda Sadeh u64 tid; 11003d14c5d2SYehuda Sadeh int numops, object_len, flags; 11013d14c5d2SYehuda Sadeh s32 result; 11023d14c5d2SYehuda Sadeh 11033d14c5d2SYehuda Sadeh tid = le64_to_cpu(msg->hdr.tid); 11043d14c5d2SYehuda Sadeh if (msg->front.iov_len < sizeof(*rhead)) 11053d14c5d2SYehuda Sadeh goto bad; 11063d14c5d2SYehuda Sadeh numops = le32_to_cpu(rhead->num_ops); 11073d14c5d2SYehuda Sadeh object_len = le32_to_cpu(rhead->object_len); 11083d14c5d2SYehuda Sadeh result = le32_to_cpu(rhead->result); 11093d14c5d2SYehuda Sadeh if (msg->front.iov_len != sizeof(*rhead) + object_len + 11103d14c5d2SYehuda Sadeh numops * sizeof(struct ceph_osd_op)) 11113d14c5d2SYehuda Sadeh goto bad; 11123d14c5d2SYehuda Sadeh dout("handle_reply %p tid %llu result %d\n", msg, tid, (int)result); 11133d14c5d2SYehuda Sadeh /* lookup */ 11143d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 11153d14c5d2SYehuda Sadeh req = __lookup_request(osdc, tid); 11163d14c5d2SYehuda Sadeh if (req == NULL) { 11173d14c5d2SYehuda Sadeh dout("handle_reply tid %llu dne\n", tid); 11183d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 11193d14c5d2SYehuda Sadeh return; 11203d14c5d2SYehuda Sadeh } 11213d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 11223d14c5d2SYehuda Sadeh flags = le32_to_cpu(rhead->flags); 11233d14c5d2SYehuda Sadeh 11243d14c5d2SYehuda Sadeh /* 11253d14c5d2SYehuda Sadeh * if this connection filled our message, drop our reference now, to 11263d14c5d2SYehuda Sadeh * avoid a (safe but slower) revoke later. 11273d14c5d2SYehuda Sadeh */ 11283d14c5d2SYehuda Sadeh if (req->r_con_filling_msg == con && req->r_reply == msg) { 11293d14c5d2SYehuda Sadeh dout(" dropping con_filling_msg ref %p\n", con); 11303d14c5d2SYehuda Sadeh req->r_con_filling_msg = NULL; 11310d47766fSSage Weil con->ops->put(con); 11323d14c5d2SYehuda Sadeh } 11333d14c5d2SYehuda Sadeh 11343d14c5d2SYehuda Sadeh if (!req->r_got_reply) { 113595c96174SEric Dumazet unsigned int bytes; 11363d14c5d2SYehuda Sadeh 11373d14c5d2SYehuda Sadeh req->r_result = le32_to_cpu(rhead->result); 11383d14c5d2SYehuda Sadeh bytes = le32_to_cpu(msg->hdr.data_len); 11393d14c5d2SYehuda Sadeh dout("handle_reply result %d bytes %d\n", req->r_result, 11403d14c5d2SYehuda Sadeh bytes); 11413d14c5d2SYehuda Sadeh if (req->r_result == 0) 11423d14c5d2SYehuda Sadeh req->r_result = bytes; 11433d14c5d2SYehuda Sadeh 11443d14c5d2SYehuda Sadeh /* in case this is a write and we need to replay, */ 11453d14c5d2SYehuda Sadeh req->r_reassert_version = rhead->reassert_version; 11463d14c5d2SYehuda Sadeh 11473d14c5d2SYehuda Sadeh req->r_got_reply = 1; 11483d14c5d2SYehuda Sadeh } else if ((flags & CEPH_OSD_FLAG_ONDISK) == 0) { 11493d14c5d2SYehuda Sadeh dout("handle_reply tid %llu dup ack\n", tid); 11503d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 11513d14c5d2SYehuda Sadeh goto done; 11523d14c5d2SYehuda Sadeh } 11533d14c5d2SYehuda Sadeh 11543d14c5d2SYehuda Sadeh dout("handle_reply tid %llu flags %d\n", tid, flags); 11553d14c5d2SYehuda Sadeh 1156a40c4f10SYehuda Sadeh if (req->r_linger && (flags & CEPH_OSD_FLAG_ONDISK)) 1157a40c4f10SYehuda Sadeh __register_linger_request(osdc, req); 1158a40c4f10SYehuda Sadeh 11593d14c5d2SYehuda Sadeh /* either this is a read, or we got the safe response */ 11603d14c5d2SYehuda Sadeh if (result < 0 || 11613d14c5d2SYehuda Sadeh (flags & CEPH_OSD_FLAG_ONDISK) || 11623d14c5d2SYehuda Sadeh ((flags & CEPH_OSD_FLAG_WRITE) == 0)) 11633d14c5d2SYehuda Sadeh __unregister_request(osdc, req); 11643d14c5d2SYehuda Sadeh 11653d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 11663d14c5d2SYehuda Sadeh 11673d14c5d2SYehuda Sadeh if (req->r_callback) 11683d14c5d2SYehuda Sadeh req->r_callback(req, msg); 11693d14c5d2SYehuda Sadeh else 11703d14c5d2SYehuda Sadeh complete_all(&req->r_completion); 11713d14c5d2SYehuda Sadeh 117225845472SSage Weil if (flags & CEPH_OSD_FLAG_ONDISK) 117325845472SSage Weil complete_request(req); 11743d14c5d2SYehuda Sadeh 11753d14c5d2SYehuda Sadeh done: 1176a40c4f10SYehuda Sadeh dout("req=%p req->r_linger=%d\n", req, req->r_linger); 11773d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 11783d14c5d2SYehuda Sadeh return; 11793d14c5d2SYehuda Sadeh 11803d14c5d2SYehuda Sadeh bad: 11813d14c5d2SYehuda Sadeh pr_err("corrupt osd_op_reply got %d %d expected %d\n", 11823d14c5d2SYehuda Sadeh (int)msg->front.iov_len, le32_to_cpu(msg->hdr.front_len), 11833d14c5d2SYehuda Sadeh (int)sizeof(*rhead)); 11843d14c5d2SYehuda Sadeh ceph_msg_dump(msg); 11853d14c5d2SYehuda Sadeh } 11863d14c5d2SYehuda Sadeh 11876f6c7006SSage Weil static void reset_changed_osds(struct ceph_osd_client *osdc) 11883d14c5d2SYehuda Sadeh { 11893d14c5d2SYehuda Sadeh struct rb_node *p, *n; 11903d14c5d2SYehuda Sadeh 11913d14c5d2SYehuda Sadeh for (p = rb_first(&osdc->osds); p; p = n) { 11926f6c7006SSage Weil struct ceph_osd *osd = rb_entry(p, struct ceph_osd, o_node); 11933d14c5d2SYehuda Sadeh 11943d14c5d2SYehuda Sadeh n = rb_next(p); 11953d14c5d2SYehuda Sadeh if (!ceph_osd_is_up(osdc->osdmap, osd->o_osd) || 11963d14c5d2SYehuda Sadeh memcmp(&osd->o_con.peer_addr, 11973d14c5d2SYehuda Sadeh ceph_osd_addr(osdc->osdmap, 11983d14c5d2SYehuda Sadeh osd->o_osd), 11993d14c5d2SYehuda Sadeh sizeof(struct ceph_entity_addr)) != 0) 12003d14c5d2SYehuda Sadeh __reset_osd(osdc, osd); 12013d14c5d2SYehuda Sadeh } 12023d14c5d2SYehuda Sadeh } 12033d14c5d2SYehuda Sadeh 12043d14c5d2SYehuda Sadeh /* 12056f6c7006SSage Weil * Requeue requests whose mapping to an OSD has changed. If requests map to 12066f6c7006SSage Weil * no osd, request a new map. 12073d14c5d2SYehuda Sadeh * 1208e6d50f67SAlex Elder * Caller should hold map_sem for read. 12093d14c5d2SYehuda Sadeh */ 121038d6453cSSage Weil static void kick_requests(struct ceph_osd_client *osdc, int force_resend) 12113d14c5d2SYehuda Sadeh { 1212a40c4f10SYehuda Sadeh struct ceph_osd_request *req, *nreq; 12136f6c7006SSage Weil struct rb_node *p; 12146f6c7006SSage Weil int needmap = 0; 12156f6c7006SSage Weil int err; 12163d14c5d2SYehuda Sadeh 121738d6453cSSage Weil dout("kick_requests %s\n", force_resend ? " (force resend)" : ""); 12183d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 12196194ea89SSage Weil for (p = rb_first(&osdc->requests); p; ) { 12206f6c7006SSage Weil req = rb_entry(p, struct ceph_osd_request, r_node); 12216194ea89SSage Weil p = rb_next(p); 1222ab60b16dSAlex Elder 1223ab60b16dSAlex Elder /* 1224ab60b16dSAlex Elder * For linger requests that have not yet been 1225ab60b16dSAlex Elder * registered, move them to the linger list; they'll 1226ab60b16dSAlex Elder * be sent to the osd in the loop below. Unregister 1227ab60b16dSAlex Elder * the request before re-registering it as a linger 1228ab60b16dSAlex Elder * request to ensure the __map_request() below 1229ab60b16dSAlex Elder * will decide it needs to be sent. 1230ab60b16dSAlex Elder */ 1231ab60b16dSAlex Elder if (req->r_linger && list_empty(&req->r_linger_item)) { 1232ab60b16dSAlex Elder dout("%p tid %llu restart on osd%d\n", 1233ab60b16dSAlex Elder req, req->r_tid, 1234ab60b16dSAlex Elder req->r_osd ? req->r_osd->o_osd : -1); 1235ab60b16dSAlex Elder __unregister_request(osdc, req); 1236ab60b16dSAlex Elder __register_linger_request(osdc, req); 1237ab60b16dSAlex Elder continue; 1238ab60b16dSAlex Elder } 1239ab60b16dSAlex Elder 124038d6453cSSage Weil err = __map_request(osdc, req, force_resend); 12416f6c7006SSage Weil if (err < 0) 12426f6c7006SSage Weil continue; /* error */ 12436f6c7006SSage Weil if (req->r_osd == NULL) { 12446f6c7006SSage Weil dout("%p tid %llu maps to no osd\n", req, req->r_tid); 12456f6c7006SSage Weil needmap++; /* request a newer map */ 12466f6c7006SSage Weil } else if (err > 0) { 12476194ea89SSage Weil if (!req->r_linger) { 12486194ea89SSage Weil dout("%p tid %llu requeued on osd%d\n", req, 12496194ea89SSage Weil req->r_tid, 12506f6c7006SSage Weil req->r_osd ? req->r_osd->o_osd : -1); 12516f6c7006SSage Weil req->r_flags |= CEPH_OSD_FLAG_RETRY; 12526f6c7006SSage Weil } 12536f6c7006SSage Weil } 12546194ea89SSage Weil } 1255a40c4f10SYehuda Sadeh 1256a40c4f10SYehuda Sadeh list_for_each_entry_safe(req, nreq, &osdc->req_linger, 1257a40c4f10SYehuda Sadeh r_linger_item) { 1258a40c4f10SYehuda Sadeh dout("linger req=%p req->r_osd=%p\n", req, req->r_osd); 1259a40c4f10SYehuda Sadeh 126038d6453cSSage Weil err = __map_request(osdc, req, force_resend); 1261ab60b16dSAlex Elder dout("__map_request returned %d\n", err); 1262a40c4f10SYehuda Sadeh if (err == 0) 1263a40c4f10SYehuda Sadeh continue; /* no change and no osd was specified */ 1264a40c4f10SYehuda Sadeh if (err < 0) 1265a40c4f10SYehuda Sadeh continue; /* hrm! */ 1266a40c4f10SYehuda Sadeh if (req->r_osd == NULL) { 1267a40c4f10SYehuda Sadeh dout("tid %llu maps to no valid osd\n", req->r_tid); 1268a40c4f10SYehuda Sadeh needmap++; /* request a newer map */ 1269a40c4f10SYehuda Sadeh continue; 1270a40c4f10SYehuda Sadeh } 1271a40c4f10SYehuda Sadeh 1272a40c4f10SYehuda Sadeh dout("kicking lingering %p tid %llu osd%d\n", req, req->r_tid, 1273a40c4f10SYehuda Sadeh req->r_osd ? req->r_osd->o_osd : -1); 1274a40c4f10SYehuda Sadeh __register_request(osdc, req); 1275c89ce05eSAlex Elder __unregister_linger_request(osdc, req); 1276a40c4f10SYehuda Sadeh } 12773d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 12783d14c5d2SYehuda Sadeh 12793d14c5d2SYehuda Sadeh if (needmap) { 12803d14c5d2SYehuda Sadeh dout("%d requests for down osds, need new map\n", needmap); 12813d14c5d2SYehuda Sadeh ceph_monc_request_next_osdmap(&osdc->client->monc); 12823d14c5d2SYehuda Sadeh } 1283e6d50f67SAlex Elder reset_changed_osds(osdc); 12843d14c5d2SYehuda Sadeh } 12856f6c7006SSage Weil 12866f6c7006SSage Weil 12873d14c5d2SYehuda Sadeh /* 12883d14c5d2SYehuda Sadeh * Process updated osd map. 12893d14c5d2SYehuda Sadeh * 12903d14c5d2SYehuda Sadeh * The message contains any number of incremental and full maps, normally 12913d14c5d2SYehuda Sadeh * indicating some sort of topology change in the cluster. Kick requests 12923d14c5d2SYehuda Sadeh * off to different OSDs as needed. 12933d14c5d2SYehuda Sadeh */ 12943d14c5d2SYehuda Sadeh void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) 12953d14c5d2SYehuda Sadeh { 12963d14c5d2SYehuda Sadeh void *p, *end, *next; 12973d14c5d2SYehuda Sadeh u32 nr_maps, maplen; 12983d14c5d2SYehuda Sadeh u32 epoch; 12993d14c5d2SYehuda Sadeh struct ceph_osdmap *newmap = NULL, *oldmap; 13003d14c5d2SYehuda Sadeh int err; 13013d14c5d2SYehuda Sadeh struct ceph_fsid fsid; 13023d14c5d2SYehuda Sadeh 13033d14c5d2SYehuda Sadeh dout("handle_map have %u\n", osdc->osdmap ? osdc->osdmap->epoch : 0); 13043d14c5d2SYehuda Sadeh p = msg->front.iov_base; 13053d14c5d2SYehuda Sadeh end = p + msg->front.iov_len; 13063d14c5d2SYehuda Sadeh 13073d14c5d2SYehuda Sadeh /* verify fsid */ 13083d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, sizeof(fsid), bad); 13093d14c5d2SYehuda Sadeh ceph_decode_copy(&p, &fsid, sizeof(fsid)); 13103d14c5d2SYehuda Sadeh if (ceph_check_fsid(osdc->client, &fsid) < 0) 13113d14c5d2SYehuda Sadeh return; 13123d14c5d2SYehuda Sadeh 13133d14c5d2SYehuda Sadeh down_write(&osdc->map_sem); 13143d14c5d2SYehuda Sadeh 13153d14c5d2SYehuda Sadeh /* incremental maps */ 13163d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 13173d14c5d2SYehuda Sadeh dout(" %d inc maps\n", nr_maps); 13183d14c5d2SYehuda Sadeh while (nr_maps > 0) { 13193d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 13203d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 13213d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 13223d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 13233d14c5d2SYehuda Sadeh next = p + maplen; 13243d14c5d2SYehuda Sadeh if (osdc->osdmap && osdc->osdmap->epoch+1 == epoch) { 13253d14c5d2SYehuda Sadeh dout("applying incremental map %u len %d\n", 13263d14c5d2SYehuda Sadeh epoch, maplen); 13273d14c5d2SYehuda Sadeh newmap = osdmap_apply_incremental(&p, next, 13283d14c5d2SYehuda Sadeh osdc->osdmap, 132915d9882cSAlex Elder &osdc->client->msgr); 13303d14c5d2SYehuda Sadeh if (IS_ERR(newmap)) { 13313d14c5d2SYehuda Sadeh err = PTR_ERR(newmap); 13323d14c5d2SYehuda Sadeh goto bad; 13333d14c5d2SYehuda Sadeh } 13343d14c5d2SYehuda Sadeh BUG_ON(!newmap); 13353d14c5d2SYehuda Sadeh if (newmap != osdc->osdmap) { 13363d14c5d2SYehuda Sadeh ceph_osdmap_destroy(osdc->osdmap); 13373d14c5d2SYehuda Sadeh osdc->osdmap = newmap; 13383d14c5d2SYehuda Sadeh } 133938d6453cSSage Weil kick_requests(osdc, 0); 13403d14c5d2SYehuda Sadeh } else { 13413d14c5d2SYehuda Sadeh dout("ignoring incremental map %u len %d\n", 13423d14c5d2SYehuda Sadeh epoch, maplen); 13433d14c5d2SYehuda Sadeh } 13443d14c5d2SYehuda Sadeh p = next; 13453d14c5d2SYehuda Sadeh nr_maps--; 13463d14c5d2SYehuda Sadeh } 13473d14c5d2SYehuda Sadeh if (newmap) 13483d14c5d2SYehuda Sadeh goto done; 13493d14c5d2SYehuda Sadeh 13503d14c5d2SYehuda Sadeh /* full maps */ 13513d14c5d2SYehuda Sadeh ceph_decode_32_safe(&p, end, nr_maps, bad); 13523d14c5d2SYehuda Sadeh dout(" %d full maps\n", nr_maps); 13533d14c5d2SYehuda Sadeh while (nr_maps) { 13543d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, 2*sizeof(u32), bad); 13553d14c5d2SYehuda Sadeh epoch = ceph_decode_32(&p); 13563d14c5d2SYehuda Sadeh maplen = ceph_decode_32(&p); 13573d14c5d2SYehuda Sadeh ceph_decode_need(&p, end, maplen, bad); 13583d14c5d2SYehuda Sadeh if (nr_maps > 1) { 13593d14c5d2SYehuda Sadeh dout("skipping non-latest full map %u len %d\n", 13603d14c5d2SYehuda Sadeh epoch, maplen); 13613d14c5d2SYehuda Sadeh } else if (osdc->osdmap && osdc->osdmap->epoch >= epoch) { 13623d14c5d2SYehuda Sadeh dout("skipping full map %u len %d, " 13633d14c5d2SYehuda Sadeh "older than our %u\n", epoch, maplen, 13643d14c5d2SYehuda Sadeh osdc->osdmap->epoch); 13653d14c5d2SYehuda Sadeh } else { 136638d6453cSSage Weil int skipped_map = 0; 136738d6453cSSage Weil 13683d14c5d2SYehuda Sadeh dout("taking full map %u len %d\n", epoch, maplen); 13693d14c5d2SYehuda Sadeh newmap = osdmap_decode(&p, p+maplen); 13703d14c5d2SYehuda Sadeh if (IS_ERR(newmap)) { 13713d14c5d2SYehuda Sadeh err = PTR_ERR(newmap); 13723d14c5d2SYehuda Sadeh goto bad; 13733d14c5d2SYehuda Sadeh } 13743d14c5d2SYehuda Sadeh BUG_ON(!newmap); 13753d14c5d2SYehuda Sadeh oldmap = osdc->osdmap; 13763d14c5d2SYehuda Sadeh osdc->osdmap = newmap; 137738d6453cSSage Weil if (oldmap) { 137838d6453cSSage Weil if (oldmap->epoch + 1 < newmap->epoch) 137938d6453cSSage Weil skipped_map = 1; 13803d14c5d2SYehuda Sadeh ceph_osdmap_destroy(oldmap); 138138d6453cSSage Weil } 138238d6453cSSage Weil kick_requests(osdc, skipped_map); 13833d14c5d2SYehuda Sadeh } 13843d14c5d2SYehuda Sadeh p += maplen; 13853d14c5d2SYehuda Sadeh nr_maps--; 13863d14c5d2SYehuda Sadeh } 13873d14c5d2SYehuda Sadeh 13883d14c5d2SYehuda Sadeh done: 13893d14c5d2SYehuda Sadeh downgrade_write(&osdc->map_sem); 13903d14c5d2SYehuda Sadeh ceph_monc_got_osdmap(&osdc->client->monc, osdc->osdmap->epoch); 1391cd634fb6SSage Weil 1392cd634fb6SSage Weil /* 1393cd634fb6SSage Weil * subscribe to subsequent osdmap updates if full to ensure 1394cd634fb6SSage Weil * we find out when we are no longer full and stop returning 1395cd634fb6SSage Weil * ENOSPC. 1396cd634fb6SSage Weil */ 1397cd634fb6SSage Weil if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL)) 1398cd634fb6SSage Weil ceph_monc_request_next_osdmap(&osdc->client->monc); 1399cd634fb6SSage Weil 14006f6c7006SSage Weil send_queued(osdc); 14013d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 14023d14c5d2SYehuda Sadeh wake_up_all(&osdc->client->auth_wq); 14033d14c5d2SYehuda Sadeh return; 14043d14c5d2SYehuda Sadeh 14053d14c5d2SYehuda Sadeh bad: 14063d14c5d2SYehuda Sadeh pr_err("osdc handle_map corrupt msg\n"); 14073d14c5d2SYehuda Sadeh ceph_msg_dump(msg); 14083d14c5d2SYehuda Sadeh up_write(&osdc->map_sem); 14093d14c5d2SYehuda Sadeh return; 14103d14c5d2SYehuda Sadeh } 14113d14c5d2SYehuda Sadeh 14123d14c5d2SYehuda Sadeh /* 1413a40c4f10SYehuda Sadeh * watch/notify callback event infrastructure 1414a40c4f10SYehuda Sadeh * 1415a40c4f10SYehuda Sadeh * These callbacks are used both for watch and notify operations. 1416a40c4f10SYehuda Sadeh */ 1417a40c4f10SYehuda Sadeh static void __release_event(struct kref *kref) 1418a40c4f10SYehuda Sadeh { 1419a40c4f10SYehuda Sadeh struct ceph_osd_event *event = 1420a40c4f10SYehuda Sadeh container_of(kref, struct ceph_osd_event, kref); 1421a40c4f10SYehuda Sadeh 1422a40c4f10SYehuda Sadeh dout("__release_event %p\n", event); 1423a40c4f10SYehuda Sadeh kfree(event); 1424a40c4f10SYehuda Sadeh } 1425a40c4f10SYehuda Sadeh 1426a40c4f10SYehuda Sadeh static void get_event(struct ceph_osd_event *event) 1427a40c4f10SYehuda Sadeh { 1428a40c4f10SYehuda Sadeh kref_get(&event->kref); 1429a40c4f10SYehuda Sadeh } 1430a40c4f10SYehuda Sadeh 1431a40c4f10SYehuda Sadeh void ceph_osdc_put_event(struct ceph_osd_event *event) 1432a40c4f10SYehuda Sadeh { 1433a40c4f10SYehuda Sadeh kref_put(&event->kref, __release_event); 1434a40c4f10SYehuda Sadeh } 1435a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_put_event); 1436a40c4f10SYehuda Sadeh 1437a40c4f10SYehuda Sadeh static void __insert_event(struct ceph_osd_client *osdc, 1438a40c4f10SYehuda Sadeh struct ceph_osd_event *new) 1439a40c4f10SYehuda Sadeh { 1440a40c4f10SYehuda Sadeh struct rb_node **p = &osdc->event_tree.rb_node; 1441a40c4f10SYehuda Sadeh struct rb_node *parent = NULL; 1442a40c4f10SYehuda Sadeh struct ceph_osd_event *event = NULL; 1443a40c4f10SYehuda Sadeh 1444a40c4f10SYehuda Sadeh while (*p) { 1445a40c4f10SYehuda Sadeh parent = *p; 1446a40c4f10SYehuda Sadeh event = rb_entry(parent, struct ceph_osd_event, node); 1447a40c4f10SYehuda Sadeh if (new->cookie < event->cookie) 1448a40c4f10SYehuda Sadeh p = &(*p)->rb_left; 1449a40c4f10SYehuda Sadeh else if (new->cookie > event->cookie) 1450a40c4f10SYehuda Sadeh p = &(*p)->rb_right; 1451a40c4f10SYehuda Sadeh else 1452a40c4f10SYehuda Sadeh BUG(); 1453a40c4f10SYehuda Sadeh } 1454a40c4f10SYehuda Sadeh 1455a40c4f10SYehuda Sadeh rb_link_node(&new->node, parent, p); 1456a40c4f10SYehuda Sadeh rb_insert_color(&new->node, &osdc->event_tree); 1457a40c4f10SYehuda Sadeh } 1458a40c4f10SYehuda Sadeh 1459a40c4f10SYehuda Sadeh static struct ceph_osd_event *__find_event(struct ceph_osd_client *osdc, 1460a40c4f10SYehuda Sadeh u64 cookie) 1461a40c4f10SYehuda Sadeh { 1462a40c4f10SYehuda Sadeh struct rb_node **p = &osdc->event_tree.rb_node; 1463a40c4f10SYehuda Sadeh struct rb_node *parent = NULL; 1464a40c4f10SYehuda Sadeh struct ceph_osd_event *event = NULL; 1465a40c4f10SYehuda Sadeh 1466a40c4f10SYehuda Sadeh while (*p) { 1467a40c4f10SYehuda Sadeh parent = *p; 1468a40c4f10SYehuda Sadeh event = rb_entry(parent, struct ceph_osd_event, node); 1469a40c4f10SYehuda Sadeh if (cookie < event->cookie) 1470a40c4f10SYehuda Sadeh p = &(*p)->rb_left; 1471a40c4f10SYehuda Sadeh else if (cookie > event->cookie) 1472a40c4f10SYehuda Sadeh p = &(*p)->rb_right; 1473a40c4f10SYehuda Sadeh else 1474a40c4f10SYehuda Sadeh return event; 1475a40c4f10SYehuda Sadeh } 1476a40c4f10SYehuda Sadeh return NULL; 1477a40c4f10SYehuda Sadeh } 1478a40c4f10SYehuda Sadeh 1479a40c4f10SYehuda Sadeh static void __remove_event(struct ceph_osd_event *event) 1480a40c4f10SYehuda Sadeh { 1481a40c4f10SYehuda Sadeh struct ceph_osd_client *osdc = event->osdc; 1482a40c4f10SYehuda Sadeh 1483a40c4f10SYehuda Sadeh if (!RB_EMPTY_NODE(&event->node)) { 1484a40c4f10SYehuda Sadeh dout("__remove_event removed %p\n", event); 1485a40c4f10SYehuda Sadeh rb_erase(&event->node, &osdc->event_tree); 1486a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 1487a40c4f10SYehuda Sadeh } else { 1488a40c4f10SYehuda Sadeh dout("__remove_event didn't remove %p\n", event); 1489a40c4f10SYehuda Sadeh } 1490a40c4f10SYehuda Sadeh } 1491a40c4f10SYehuda Sadeh 1492a40c4f10SYehuda Sadeh int ceph_osdc_create_event(struct ceph_osd_client *osdc, 1493a40c4f10SYehuda Sadeh void (*event_cb)(u64, u64, u8, void *), 1494a40c4f10SYehuda Sadeh int one_shot, void *data, 1495a40c4f10SYehuda Sadeh struct ceph_osd_event **pevent) 1496a40c4f10SYehuda Sadeh { 1497a40c4f10SYehuda Sadeh struct ceph_osd_event *event; 1498a40c4f10SYehuda Sadeh 1499a40c4f10SYehuda Sadeh event = kmalloc(sizeof(*event), GFP_NOIO); 1500a40c4f10SYehuda Sadeh if (!event) 1501a40c4f10SYehuda Sadeh return -ENOMEM; 1502a40c4f10SYehuda Sadeh 1503a40c4f10SYehuda Sadeh dout("create_event %p\n", event); 1504a40c4f10SYehuda Sadeh event->cb = event_cb; 1505a40c4f10SYehuda Sadeh event->one_shot = one_shot; 1506a40c4f10SYehuda Sadeh event->data = data; 1507a40c4f10SYehuda Sadeh event->osdc = osdc; 1508a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&event->osd_node); 15093ee5234dSAlex Elder RB_CLEAR_NODE(&event->node); 1510a40c4f10SYehuda Sadeh kref_init(&event->kref); /* one ref for us */ 1511a40c4f10SYehuda Sadeh kref_get(&event->kref); /* one ref for the caller */ 1512a40c4f10SYehuda Sadeh init_completion(&event->completion); 1513a40c4f10SYehuda Sadeh 1514a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 1515a40c4f10SYehuda Sadeh event->cookie = ++osdc->event_count; 1516a40c4f10SYehuda Sadeh __insert_event(osdc, event); 1517a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 1518a40c4f10SYehuda Sadeh 1519a40c4f10SYehuda Sadeh *pevent = event; 1520a40c4f10SYehuda Sadeh return 0; 1521a40c4f10SYehuda Sadeh } 1522a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_create_event); 1523a40c4f10SYehuda Sadeh 1524a40c4f10SYehuda Sadeh void ceph_osdc_cancel_event(struct ceph_osd_event *event) 1525a40c4f10SYehuda Sadeh { 1526a40c4f10SYehuda Sadeh struct ceph_osd_client *osdc = event->osdc; 1527a40c4f10SYehuda Sadeh 1528a40c4f10SYehuda Sadeh dout("cancel_event %p\n", event); 1529a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 1530a40c4f10SYehuda Sadeh __remove_event(event); 1531a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 1532a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); /* caller's */ 1533a40c4f10SYehuda Sadeh } 1534a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_cancel_event); 1535a40c4f10SYehuda Sadeh 1536a40c4f10SYehuda Sadeh 1537a40c4f10SYehuda Sadeh static void do_event_work(struct work_struct *work) 1538a40c4f10SYehuda Sadeh { 1539a40c4f10SYehuda Sadeh struct ceph_osd_event_work *event_work = 1540a40c4f10SYehuda Sadeh container_of(work, struct ceph_osd_event_work, work); 1541a40c4f10SYehuda Sadeh struct ceph_osd_event *event = event_work->event; 1542a40c4f10SYehuda Sadeh u64 ver = event_work->ver; 1543a40c4f10SYehuda Sadeh u64 notify_id = event_work->notify_id; 1544a40c4f10SYehuda Sadeh u8 opcode = event_work->opcode; 1545a40c4f10SYehuda Sadeh 1546a40c4f10SYehuda Sadeh dout("do_event_work completing %p\n", event); 1547a40c4f10SYehuda Sadeh event->cb(ver, notify_id, opcode, event->data); 1548a40c4f10SYehuda Sadeh complete(&event->completion); 1549a40c4f10SYehuda Sadeh dout("do_event_work completed %p\n", event); 1550a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 1551a40c4f10SYehuda Sadeh kfree(event_work); 1552a40c4f10SYehuda Sadeh } 1553a40c4f10SYehuda Sadeh 1554a40c4f10SYehuda Sadeh 1555a40c4f10SYehuda Sadeh /* 1556a40c4f10SYehuda Sadeh * Process osd watch notifications 1557a40c4f10SYehuda Sadeh */ 1558a40c4f10SYehuda Sadeh void handle_watch_notify(struct ceph_osd_client *osdc, struct ceph_msg *msg) 1559a40c4f10SYehuda Sadeh { 1560a40c4f10SYehuda Sadeh void *p, *end; 1561a40c4f10SYehuda Sadeh u8 proto_ver; 1562a40c4f10SYehuda Sadeh u64 cookie, ver, notify_id; 1563a40c4f10SYehuda Sadeh u8 opcode; 1564a40c4f10SYehuda Sadeh struct ceph_osd_event *event; 1565a40c4f10SYehuda Sadeh struct ceph_osd_event_work *event_work; 1566a40c4f10SYehuda Sadeh 1567a40c4f10SYehuda Sadeh p = msg->front.iov_base; 1568a40c4f10SYehuda Sadeh end = p + msg->front.iov_len; 1569a40c4f10SYehuda Sadeh 1570a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, proto_ver, bad); 1571a40c4f10SYehuda Sadeh ceph_decode_8_safe(&p, end, opcode, bad); 1572a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, cookie, bad); 1573a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, ver, bad); 1574a40c4f10SYehuda Sadeh ceph_decode_64_safe(&p, end, notify_id, bad); 1575a40c4f10SYehuda Sadeh 1576a40c4f10SYehuda Sadeh spin_lock(&osdc->event_lock); 1577a40c4f10SYehuda Sadeh event = __find_event(osdc, cookie); 1578a40c4f10SYehuda Sadeh if (event) { 1579a40c4f10SYehuda Sadeh get_event(event); 1580a40c4f10SYehuda Sadeh if (event->one_shot) 1581a40c4f10SYehuda Sadeh __remove_event(event); 1582a40c4f10SYehuda Sadeh } 1583a40c4f10SYehuda Sadeh spin_unlock(&osdc->event_lock); 1584a40c4f10SYehuda Sadeh dout("handle_watch_notify cookie %lld ver %lld event %p\n", 1585a40c4f10SYehuda Sadeh cookie, ver, event); 1586a40c4f10SYehuda Sadeh if (event) { 1587a40c4f10SYehuda Sadeh event_work = kmalloc(sizeof(*event_work), GFP_NOIO); 1588a40c4f10SYehuda Sadeh if (!event_work) { 1589a40c4f10SYehuda Sadeh dout("ERROR: could not allocate event_work\n"); 1590a40c4f10SYehuda Sadeh goto done_err; 1591a40c4f10SYehuda Sadeh } 15926b0ae409SMariusz Kozlowski INIT_WORK(&event_work->work, do_event_work); 1593a40c4f10SYehuda Sadeh event_work->event = event; 1594a40c4f10SYehuda Sadeh event_work->ver = ver; 1595a40c4f10SYehuda Sadeh event_work->notify_id = notify_id; 1596a40c4f10SYehuda Sadeh event_work->opcode = opcode; 1597a40c4f10SYehuda Sadeh if (!queue_work(osdc->notify_wq, &event_work->work)) { 1598a40c4f10SYehuda Sadeh dout("WARNING: failed to queue notify event work\n"); 1599a40c4f10SYehuda Sadeh goto done_err; 1600a40c4f10SYehuda Sadeh } 1601a40c4f10SYehuda Sadeh } 1602a40c4f10SYehuda Sadeh 1603a40c4f10SYehuda Sadeh return; 1604a40c4f10SYehuda Sadeh 1605a40c4f10SYehuda Sadeh done_err: 1606a40c4f10SYehuda Sadeh complete(&event->completion); 1607a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 1608a40c4f10SYehuda Sadeh return; 1609a40c4f10SYehuda Sadeh 1610a40c4f10SYehuda Sadeh bad: 1611a40c4f10SYehuda Sadeh pr_err("osdc handle_watch_notify corrupt msg\n"); 1612a40c4f10SYehuda Sadeh return; 1613a40c4f10SYehuda Sadeh } 1614a40c4f10SYehuda Sadeh 1615a40c4f10SYehuda Sadeh int ceph_osdc_wait_event(struct ceph_osd_event *event, unsigned long timeout) 1616a40c4f10SYehuda Sadeh { 1617a40c4f10SYehuda Sadeh int err; 1618a40c4f10SYehuda Sadeh 1619a40c4f10SYehuda Sadeh dout("wait_event %p\n", event); 1620a40c4f10SYehuda Sadeh err = wait_for_completion_interruptible_timeout(&event->completion, 1621a40c4f10SYehuda Sadeh timeout * HZ); 1622a40c4f10SYehuda Sadeh ceph_osdc_put_event(event); 1623a40c4f10SYehuda Sadeh if (err > 0) 1624a40c4f10SYehuda Sadeh err = 0; 1625a40c4f10SYehuda Sadeh dout("wait_event %p returns %d\n", event, err); 1626a40c4f10SYehuda Sadeh return err; 1627a40c4f10SYehuda Sadeh } 1628a40c4f10SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_wait_event); 1629a40c4f10SYehuda Sadeh 1630a40c4f10SYehuda Sadeh /* 16313d14c5d2SYehuda Sadeh * Register request, send initial attempt. 16323d14c5d2SYehuda Sadeh */ 16333d14c5d2SYehuda Sadeh int ceph_osdc_start_request(struct ceph_osd_client *osdc, 16343d14c5d2SYehuda Sadeh struct ceph_osd_request *req, 16353d14c5d2SYehuda Sadeh bool nofail) 16363d14c5d2SYehuda Sadeh { 16373d14c5d2SYehuda Sadeh int rc = 0; 16383d14c5d2SYehuda Sadeh 16393d14c5d2SYehuda Sadeh req->r_request->pages = req->r_pages; 16403d14c5d2SYehuda Sadeh req->r_request->nr_pages = req->r_num_pages; 16413d14c5d2SYehuda Sadeh #ifdef CONFIG_BLOCK 16423d14c5d2SYehuda Sadeh req->r_request->bio = req->r_bio; 16433d14c5d2SYehuda Sadeh #endif 1644c885837fSAlex Elder req->r_request->trail = &req->r_trail; 16453d14c5d2SYehuda Sadeh 16463d14c5d2SYehuda Sadeh register_request(osdc, req); 16473d14c5d2SYehuda Sadeh 16483d14c5d2SYehuda Sadeh down_read(&osdc->map_sem); 16493d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 16503d14c5d2SYehuda Sadeh /* 16513d14c5d2SYehuda Sadeh * a racing kick_requests() may have sent the message for us 16523d14c5d2SYehuda Sadeh * while we dropped request_mutex above, so only send now if 16533d14c5d2SYehuda Sadeh * the request still han't been touched yet. 16543d14c5d2SYehuda Sadeh */ 16553d14c5d2SYehuda Sadeh if (req->r_sent == 0) { 165638d6453cSSage Weil rc = __map_request(osdc, req, 0); 16579d6fcb08SSage Weil if (rc < 0) { 16589d6fcb08SSage Weil if (nofail) { 16599d6fcb08SSage Weil dout("osdc_start_request failed map, " 16609d6fcb08SSage Weil " will retry %lld\n", req->r_tid); 16619d6fcb08SSage Weil rc = 0; 16629d6fcb08SSage Weil } 1663234af26fSDan Carpenter goto out_unlock; 16649d6fcb08SSage Weil } 16656f6c7006SSage Weil if (req->r_osd == NULL) { 16666f6c7006SSage Weil dout("send_request %p no up osds in pg\n", req); 16676f6c7006SSage Weil ceph_monc_request_next_osdmap(&osdc->client->monc); 16686f6c7006SSage Weil } else { 166956e925b6SSage Weil __send_request(osdc, req); 167056e925b6SSage Weil } 16713d14c5d2SYehuda Sadeh rc = 0; 16726f6c7006SSage Weil } 1673234af26fSDan Carpenter 1674234af26fSDan Carpenter out_unlock: 16753d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 16763d14c5d2SYehuda Sadeh up_read(&osdc->map_sem); 16773d14c5d2SYehuda Sadeh return rc; 16783d14c5d2SYehuda Sadeh } 16793d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_start_request); 16803d14c5d2SYehuda Sadeh 16813d14c5d2SYehuda Sadeh /* 16823d14c5d2SYehuda Sadeh * wait for a request to complete 16833d14c5d2SYehuda Sadeh */ 16843d14c5d2SYehuda Sadeh int ceph_osdc_wait_request(struct ceph_osd_client *osdc, 16853d14c5d2SYehuda Sadeh struct ceph_osd_request *req) 16863d14c5d2SYehuda Sadeh { 16873d14c5d2SYehuda Sadeh int rc; 16883d14c5d2SYehuda Sadeh 16893d14c5d2SYehuda Sadeh rc = wait_for_completion_interruptible(&req->r_completion); 16903d14c5d2SYehuda Sadeh if (rc < 0) { 16913d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 16923d14c5d2SYehuda Sadeh __cancel_request(req); 16933d14c5d2SYehuda Sadeh __unregister_request(osdc, req); 16943d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 169525845472SSage Weil complete_request(req); 16963d14c5d2SYehuda Sadeh dout("wait_request tid %llu canceled/timed out\n", req->r_tid); 16973d14c5d2SYehuda Sadeh return rc; 16983d14c5d2SYehuda Sadeh } 16993d14c5d2SYehuda Sadeh 17003d14c5d2SYehuda Sadeh dout("wait_request tid %llu result %d\n", req->r_tid, req->r_result); 17013d14c5d2SYehuda Sadeh return req->r_result; 17023d14c5d2SYehuda Sadeh } 17033d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_wait_request); 17043d14c5d2SYehuda Sadeh 17053d14c5d2SYehuda Sadeh /* 17063d14c5d2SYehuda Sadeh * sync - wait for all in-flight requests to flush. avoid starvation. 17073d14c5d2SYehuda Sadeh */ 17083d14c5d2SYehuda Sadeh void ceph_osdc_sync(struct ceph_osd_client *osdc) 17093d14c5d2SYehuda Sadeh { 17103d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 17113d14c5d2SYehuda Sadeh u64 last_tid, next_tid = 0; 17123d14c5d2SYehuda Sadeh 17133d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 17143d14c5d2SYehuda Sadeh last_tid = osdc->last_tid; 17153d14c5d2SYehuda Sadeh while (1) { 17163d14c5d2SYehuda Sadeh req = __lookup_request_ge(osdc, next_tid); 17173d14c5d2SYehuda Sadeh if (!req) 17183d14c5d2SYehuda Sadeh break; 17193d14c5d2SYehuda Sadeh if (req->r_tid > last_tid) 17203d14c5d2SYehuda Sadeh break; 17213d14c5d2SYehuda Sadeh 17223d14c5d2SYehuda Sadeh next_tid = req->r_tid + 1; 17233d14c5d2SYehuda Sadeh if ((req->r_flags & CEPH_OSD_FLAG_WRITE) == 0) 17243d14c5d2SYehuda Sadeh continue; 17253d14c5d2SYehuda Sadeh 17263d14c5d2SYehuda Sadeh ceph_osdc_get_request(req); 17273d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 17283d14c5d2SYehuda Sadeh dout("sync waiting on tid %llu (last is %llu)\n", 17293d14c5d2SYehuda Sadeh req->r_tid, last_tid); 17303d14c5d2SYehuda Sadeh wait_for_completion(&req->r_safe_completion); 17313d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 17323d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 17333d14c5d2SYehuda Sadeh } 17343d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 17353d14c5d2SYehuda Sadeh dout("sync done (thru tid %llu)\n", last_tid); 17363d14c5d2SYehuda Sadeh } 17373d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_sync); 17383d14c5d2SYehuda Sadeh 17393d14c5d2SYehuda Sadeh /* 17403d14c5d2SYehuda Sadeh * init, shutdown 17413d14c5d2SYehuda Sadeh */ 17423d14c5d2SYehuda Sadeh int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) 17433d14c5d2SYehuda Sadeh { 17443d14c5d2SYehuda Sadeh int err; 17453d14c5d2SYehuda Sadeh 17463d14c5d2SYehuda Sadeh dout("init\n"); 17473d14c5d2SYehuda Sadeh osdc->client = client; 17483d14c5d2SYehuda Sadeh osdc->osdmap = NULL; 17493d14c5d2SYehuda Sadeh init_rwsem(&osdc->map_sem); 17503d14c5d2SYehuda Sadeh init_completion(&osdc->map_waiters); 17513d14c5d2SYehuda Sadeh osdc->last_requested_map = 0; 17523d14c5d2SYehuda Sadeh mutex_init(&osdc->request_mutex); 17533d14c5d2SYehuda Sadeh osdc->last_tid = 0; 17543d14c5d2SYehuda Sadeh osdc->osds = RB_ROOT; 17553d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osdc->osd_lru); 17563d14c5d2SYehuda Sadeh osdc->requests = RB_ROOT; 17573d14c5d2SYehuda Sadeh INIT_LIST_HEAD(&osdc->req_lru); 17586f6c7006SSage Weil INIT_LIST_HEAD(&osdc->req_unsent); 17596f6c7006SSage Weil INIT_LIST_HEAD(&osdc->req_notarget); 1760a40c4f10SYehuda Sadeh INIT_LIST_HEAD(&osdc->req_linger); 17613d14c5d2SYehuda Sadeh osdc->num_requests = 0; 17623d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->timeout_work, handle_timeout); 17633d14c5d2SYehuda Sadeh INIT_DELAYED_WORK(&osdc->osds_timeout_work, handle_osds_timeout); 1764a40c4f10SYehuda Sadeh spin_lock_init(&osdc->event_lock); 1765a40c4f10SYehuda Sadeh osdc->event_tree = RB_ROOT; 1766a40c4f10SYehuda Sadeh osdc->event_count = 0; 17673d14c5d2SYehuda Sadeh 17683d14c5d2SYehuda Sadeh schedule_delayed_work(&osdc->osds_timeout_work, 17693d14c5d2SYehuda Sadeh round_jiffies_relative(osdc->client->options->osd_idle_ttl * HZ)); 17703d14c5d2SYehuda Sadeh 17713d14c5d2SYehuda Sadeh err = -ENOMEM; 17723d14c5d2SYehuda Sadeh osdc->req_mempool = mempool_create_kmalloc_pool(10, 17733d14c5d2SYehuda Sadeh sizeof(struct ceph_osd_request)); 17743d14c5d2SYehuda Sadeh if (!osdc->req_mempool) 17753d14c5d2SYehuda Sadeh goto out; 17763d14c5d2SYehuda Sadeh 1777d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op, CEPH_MSG_OSD_OP, 1778d50b409fSSage Weil OSD_OP_FRONT_LEN, 10, true, 17793d14c5d2SYehuda Sadeh "osd_op"); 17803d14c5d2SYehuda Sadeh if (err < 0) 17813d14c5d2SYehuda Sadeh goto out_mempool; 1782d50b409fSSage Weil err = ceph_msgpool_init(&osdc->msgpool_op_reply, CEPH_MSG_OSD_OPREPLY, 17833d14c5d2SYehuda Sadeh OSD_OPREPLY_FRONT_LEN, 10, true, 17843d14c5d2SYehuda Sadeh "osd_op_reply"); 17853d14c5d2SYehuda Sadeh if (err < 0) 17863d14c5d2SYehuda Sadeh goto out_msgpool; 1787a40c4f10SYehuda Sadeh 1788a40c4f10SYehuda Sadeh osdc->notify_wq = create_singlethread_workqueue("ceph-watch-notify"); 1789a40c4f10SYehuda Sadeh if (IS_ERR(osdc->notify_wq)) { 1790a40c4f10SYehuda Sadeh err = PTR_ERR(osdc->notify_wq); 1791a40c4f10SYehuda Sadeh osdc->notify_wq = NULL; 1792a40c4f10SYehuda Sadeh goto out_msgpool; 1793a40c4f10SYehuda Sadeh } 17943d14c5d2SYehuda Sadeh return 0; 17953d14c5d2SYehuda Sadeh 17963d14c5d2SYehuda Sadeh out_msgpool: 17973d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 17983d14c5d2SYehuda Sadeh out_mempool: 17993d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 18003d14c5d2SYehuda Sadeh out: 18013d14c5d2SYehuda Sadeh return err; 18023d14c5d2SYehuda Sadeh } 18033d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_init); 18043d14c5d2SYehuda Sadeh 18053d14c5d2SYehuda Sadeh void ceph_osdc_stop(struct ceph_osd_client *osdc) 18063d14c5d2SYehuda Sadeh { 1807a40c4f10SYehuda Sadeh flush_workqueue(osdc->notify_wq); 1808a40c4f10SYehuda Sadeh destroy_workqueue(osdc->notify_wq); 18093d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->timeout_work); 18103d14c5d2SYehuda Sadeh cancel_delayed_work_sync(&osdc->osds_timeout_work); 18113d14c5d2SYehuda Sadeh if (osdc->osdmap) { 18123d14c5d2SYehuda Sadeh ceph_osdmap_destroy(osdc->osdmap); 18133d14c5d2SYehuda Sadeh osdc->osdmap = NULL; 18143d14c5d2SYehuda Sadeh } 1815aca420bcSSage Weil remove_all_osds(osdc); 18163d14c5d2SYehuda Sadeh mempool_destroy(osdc->req_mempool); 18173d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op); 18183d14c5d2SYehuda Sadeh ceph_msgpool_destroy(&osdc->msgpool_op_reply); 18193d14c5d2SYehuda Sadeh } 18203d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_stop); 18213d14c5d2SYehuda Sadeh 18223d14c5d2SYehuda Sadeh /* 18233d14c5d2SYehuda Sadeh * Read some contiguous pages. If we cross a stripe boundary, shorten 18243d14c5d2SYehuda Sadeh * *plen. Return number of bytes read, or error. 18253d14c5d2SYehuda Sadeh */ 18263d14c5d2SYehuda Sadeh int ceph_osdc_readpages(struct ceph_osd_client *osdc, 18273d14c5d2SYehuda Sadeh struct ceph_vino vino, struct ceph_file_layout *layout, 18283d14c5d2SYehuda Sadeh u64 off, u64 *plen, 18293d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 1830b7495fc2SSage Weil struct page **pages, int num_pages, int page_align) 18313d14c5d2SYehuda Sadeh { 18323d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 18333d14c5d2SYehuda Sadeh int rc = 0; 18343d14c5d2SYehuda Sadeh 18353d14c5d2SYehuda Sadeh dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino, 18363d14c5d2SYehuda Sadeh vino.snap, off, *plen); 18373d14c5d2SYehuda Sadeh req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 18383d14c5d2SYehuda Sadeh CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, 18393d14c5d2SYehuda Sadeh NULL, 0, truncate_seq, truncate_size, NULL, 1840b7495fc2SSage Weil false, 1, page_align); 18416816282dSSage Weil if (IS_ERR(req)) 18426816282dSSage Weil return PTR_ERR(req); 18433d14c5d2SYehuda Sadeh 18443d14c5d2SYehuda Sadeh /* it may be a short read due to an object boundary */ 18453d14c5d2SYehuda Sadeh req->r_pages = pages; 18463d14c5d2SYehuda Sadeh 1847b7495fc2SSage Weil dout("readpages final extent is %llu~%llu (%d pages align %d)\n", 1848b7495fc2SSage Weil off, *plen, req->r_num_pages, page_align); 18493d14c5d2SYehuda Sadeh 18503d14c5d2SYehuda Sadeh rc = ceph_osdc_start_request(osdc, req, false); 18513d14c5d2SYehuda Sadeh if (!rc) 18523d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 18533d14c5d2SYehuda Sadeh 18543d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 18553d14c5d2SYehuda Sadeh dout("readpages result %d\n", rc); 18563d14c5d2SYehuda Sadeh return rc; 18573d14c5d2SYehuda Sadeh } 18583d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_readpages); 18593d14c5d2SYehuda Sadeh 18603d14c5d2SYehuda Sadeh /* 18613d14c5d2SYehuda Sadeh * do a synchronous write on N pages 18623d14c5d2SYehuda Sadeh */ 18633d14c5d2SYehuda Sadeh int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, 18643d14c5d2SYehuda Sadeh struct ceph_file_layout *layout, 18653d14c5d2SYehuda Sadeh struct ceph_snap_context *snapc, 18663d14c5d2SYehuda Sadeh u64 off, u64 len, 18673d14c5d2SYehuda Sadeh u32 truncate_seq, u64 truncate_size, 18683d14c5d2SYehuda Sadeh struct timespec *mtime, 186924808826SAlex Elder struct page **pages, int num_pages) 18703d14c5d2SYehuda Sadeh { 18713d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 18723d14c5d2SYehuda Sadeh int rc = 0; 1873b7495fc2SSage Weil int page_align = off & ~PAGE_MASK; 18743d14c5d2SYehuda Sadeh 18753d14c5d2SYehuda Sadeh BUG_ON(vino.snap != CEPH_NOSNAP); 18763d14c5d2SYehuda Sadeh req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 18773d14c5d2SYehuda Sadeh CEPH_OSD_OP_WRITE, 187824808826SAlex Elder CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE, 1879fbf8685fSAlex Elder snapc, 0, 18803d14c5d2SYehuda Sadeh truncate_seq, truncate_size, mtime, 188187f979d3SAlex Elder true, 1, page_align); 18826816282dSSage Weil if (IS_ERR(req)) 18836816282dSSage Weil return PTR_ERR(req); 18843d14c5d2SYehuda Sadeh 18853d14c5d2SYehuda Sadeh /* it may be a short write due to an object boundary */ 18863d14c5d2SYehuda Sadeh req->r_pages = pages; 18873d14c5d2SYehuda Sadeh dout("writepages %llu~%llu (%d pages)\n", off, len, 18883d14c5d2SYehuda Sadeh req->r_num_pages); 18893d14c5d2SYehuda Sadeh 189087f979d3SAlex Elder rc = ceph_osdc_start_request(osdc, req, true); 18913d14c5d2SYehuda Sadeh if (!rc) 18923d14c5d2SYehuda Sadeh rc = ceph_osdc_wait_request(osdc, req); 18933d14c5d2SYehuda Sadeh 18943d14c5d2SYehuda Sadeh ceph_osdc_put_request(req); 18953d14c5d2SYehuda Sadeh if (rc == 0) 18963d14c5d2SYehuda Sadeh rc = len; 18973d14c5d2SYehuda Sadeh dout("writepages result %d\n", rc); 18983d14c5d2SYehuda Sadeh return rc; 18993d14c5d2SYehuda Sadeh } 19003d14c5d2SYehuda Sadeh EXPORT_SYMBOL(ceph_osdc_writepages); 19013d14c5d2SYehuda Sadeh 19023d14c5d2SYehuda Sadeh /* 19033d14c5d2SYehuda Sadeh * handle incoming message 19043d14c5d2SYehuda Sadeh */ 19053d14c5d2SYehuda Sadeh static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) 19063d14c5d2SYehuda Sadeh { 19073d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 19083d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc; 19093d14c5d2SYehuda Sadeh int type = le16_to_cpu(msg->hdr.type); 19103d14c5d2SYehuda Sadeh 19113d14c5d2SYehuda Sadeh if (!osd) 19123d14c5d2SYehuda Sadeh goto out; 19133d14c5d2SYehuda Sadeh osdc = osd->o_osdc; 19143d14c5d2SYehuda Sadeh 19153d14c5d2SYehuda Sadeh switch (type) { 19163d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 19173d14c5d2SYehuda Sadeh ceph_osdc_handle_map(osdc, msg); 19183d14c5d2SYehuda Sadeh break; 19193d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 19203d14c5d2SYehuda Sadeh handle_reply(osdc, msg, con); 19213d14c5d2SYehuda Sadeh break; 1922a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 1923a40c4f10SYehuda Sadeh handle_watch_notify(osdc, msg); 1924a40c4f10SYehuda Sadeh break; 19253d14c5d2SYehuda Sadeh 19263d14c5d2SYehuda Sadeh default: 19273d14c5d2SYehuda Sadeh pr_err("received unknown message type %d %s\n", type, 19283d14c5d2SYehuda Sadeh ceph_msg_type_name(type)); 19293d14c5d2SYehuda Sadeh } 19303d14c5d2SYehuda Sadeh out: 19313d14c5d2SYehuda Sadeh ceph_msg_put(msg); 19323d14c5d2SYehuda Sadeh } 19333d14c5d2SYehuda Sadeh 19343d14c5d2SYehuda Sadeh /* 19353d14c5d2SYehuda Sadeh * lookup and return message for incoming reply. set up reply message 19363d14c5d2SYehuda Sadeh * pages. 19373d14c5d2SYehuda Sadeh */ 19383d14c5d2SYehuda Sadeh static struct ceph_msg *get_reply(struct ceph_connection *con, 19393d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 19403d14c5d2SYehuda Sadeh int *skip) 19413d14c5d2SYehuda Sadeh { 19423d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 19433d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = osd->o_osdc; 19443d14c5d2SYehuda Sadeh struct ceph_msg *m; 19453d14c5d2SYehuda Sadeh struct ceph_osd_request *req; 19463d14c5d2SYehuda Sadeh int front = le32_to_cpu(hdr->front_len); 19473d14c5d2SYehuda Sadeh int data_len = le32_to_cpu(hdr->data_len); 19483d14c5d2SYehuda Sadeh u64 tid; 19493d14c5d2SYehuda Sadeh 19503d14c5d2SYehuda Sadeh tid = le64_to_cpu(hdr->tid); 19513d14c5d2SYehuda Sadeh mutex_lock(&osdc->request_mutex); 19523d14c5d2SYehuda Sadeh req = __lookup_request(osdc, tid); 19533d14c5d2SYehuda Sadeh if (!req) { 19543d14c5d2SYehuda Sadeh *skip = 1; 19553d14c5d2SYehuda Sadeh m = NULL; 1956756a16a5SSage Weil dout("get_reply unknown tid %llu from osd%d\n", tid, 19573d14c5d2SYehuda Sadeh osd->o_osd); 19583d14c5d2SYehuda Sadeh goto out; 19593d14c5d2SYehuda Sadeh } 19603d14c5d2SYehuda Sadeh 19613d14c5d2SYehuda Sadeh if (req->r_con_filling_msg) { 19628921d114SAlex Elder dout("%s revoking msg %p from old con %p\n", __func__, 19633d14c5d2SYehuda Sadeh req->r_reply, req->r_con_filling_msg); 19648921d114SAlex Elder ceph_msg_revoke_incoming(req->r_reply); 19650d47766fSSage Weil req->r_con_filling_msg->ops->put(req->r_con_filling_msg); 19663d14c5d2SYehuda Sadeh req->r_con_filling_msg = NULL; 19673d14c5d2SYehuda Sadeh } 19683d14c5d2SYehuda Sadeh 19693d14c5d2SYehuda Sadeh if (front > req->r_reply->front.iov_len) { 19703d14c5d2SYehuda Sadeh pr_warning("get_reply front %d > preallocated %d\n", 19713d14c5d2SYehuda Sadeh front, (int)req->r_reply->front.iov_len); 1972b61c2763SSage Weil m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front, GFP_NOFS, false); 19733d14c5d2SYehuda Sadeh if (!m) 19743d14c5d2SYehuda Sadeh goto out; 19753d14c5d2SYehuda Sadeh ceph_msg_put(req->r_reply); 19763d14c5d2SYehuda Sadeh req->r_reply = m; 19773d14c5d2SYehuda Sadeh } 19783d14c5d2SYehuda Sadeh m = ceph_msg_get(req->r_reply); 19793d14c5d2SYehuda Sadeh 19803d14c5d2SYehuda Sadeh if (data_len > 0) { 1981b7495fc2SSage Weil int want = calc_pages_for(req->r_page_alignment, data_len); 19823d14c5d2SYehuda Sadeh 19839cbb1d72SAlex Elder if (req->r_pages && unlikely(req->r_num_pages < want)) { 19849bb0ce2bSSage Weil pr_warning("tid %lld reply has %d bytes %d pages, we" 19859bb0ce2bSSage Weil " had only %d pages ready\n", tid, data_len, 19869bb0ce2bSSage Weil want, req->r_num_pages); 19873d14c5d2SYehuda Sadeh *skip = 1; 19883d14c5d2SYehuda Sadeh ceph_msg_put(m); 19893d14c5d2SYehuda Sadeh m = NULL; 19903d14c5d2SYehuda Sadeh goto out; 19913d14c5d2SYehuda Sadeh } 19923d14c5d2SYehuda Sadeh m->pages = req->r_pages; 19933d14c5d2SYehuda Sadeh m->nr_pages = req->r_num_pages; 1994c5c6b19dSSage Weil m->page_alignment = req->r_page_alignment; 19953d14c5d2SYehuda Sadeh #ifdef CONFIG_BLOCK 19963d14c5d2SYehuda Sadeh m->bio = req->r_bio; 19973d14c5d2SYehuda Sadeh #endif 19983d14c5d2SYehuda Sadeh } 19993d14c5d2SYehuda Sadeh *skip = 0; 20000d47766fSSage Weil req->r_con_filling_msg = con->ops->get(con); 20013d14c5d2SYehuda Sadeh dout("get_reply tid %lld %p\n", tid, m); 20023d14c5d2SYehuda Sadeh 20033d14c5d2SYehuda Sadeh out: 20043d14c5d2SYehuda Sadeh mutex_unlock(&osdc->request_mutex); 20053d14c5d2SYehuda Sadeh return m; 20063d14c5d2SYehuda Sadeh 20073d14c5d2SYehuda Sadeh } 20083d14c5d2SYehuda Sadeh 20093d14c5d2SYehuda Sadeh static struct ceph_msg *alloc_msg(struct ceph_connection *con, 20103d14c5d2SYehuda Sadeh struct ceph_msg_header *hdr, 20113d14c5d2SYehuda Sadeh int *skip) 20123d14c5d2SYehuda Sadeh { 20133d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 20143d14c5d2SYehuda Sadeh int type = le16_to_cpu(hdr->type); 20153d14c5d2SYehuda Sadeh int front = le32_to_cpu(hdr->front_len); 20163d14c5d2SYehuda Sadeh 20171c20f2d2SAlex Elder *skip = 0; 20183d14c5d2SYehuda Sadeh switch (type) { 20193d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_MAP: 2020a40c4f10SYehuda Sadeh case CEPH_MSG_WATCH_NOTIFY: 2021b61c2763SSage Weil return ceph_msg_new(type, front, GFP_NOFS, false); 20223d14c5d2SYehuda Sadeh case CEPH_MSG_OSD_OPREPLY: 20233d14c5d2SYehuda Sadeh return get_reply(con, hdr, skip); 20243d14c5d2SYehuda Sadeh default: 20253d14c5d2SYehuda Sadeh pr_info("alloc_msg unexpected msg type %d from osd%d\n", type, 20263d14c5d2SYehuda Sadeh osd->o_osd); 20273d14c5d2SYehuda Sadeh *skip = 1; 20283d14c5d2SYehuda Sadeh return NULL; 20293d14c5d2SYehuda Sadeh } 20303d14c5d2SYehuda Sadeh } 20313d14c5d2SYehuda Sadeh 20323d14c5d2SYehuda Sadeh /* 20333d14c5d2SYehuda Sadeh * Wrappers to refcount containing ceph_osd struct 20343d14c5d2SYehuda Sadeh */ 20353d14c5d2SYehuda Sadeh static struct ceph_connection *get_osd_con(struct ceph_connection *con) 20363d14c5d2SYehuda Sadeh { 20373d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 20383d14c5d2SYehuda Sadeh if (get_osd(osd)) 20393d14c5d2SYehuda Sadeh return con; 20403d14c5d2SYehuda Sadeh return NULL; 20413d14c5d2SYehuda Sadeh } 20423d14c5d2SYehuda Sadeh 20433d14c5d2SYehuda Sadeh static void put_osd_con(struct ceph_connection *con) 20443d14c5d2SYehuda Sadeh { 20453d14c5d2SYehuda Sadeh struct ceph_osd *osd = con->private; 20463d14c5d2SYehuda Sadeh put_osd(osd); 20473d14c5d2SYehuda Sadeh } 20483d14c5d2SYehuda Sadeh 20493d14c5d2SYehuda Sadeh /* 20503d14c5d2SYehuda Sadeh * authentication 20513d14c5d2SYehuda Sadeh */ 2052a3530df3SAlex Elder /* 2053a3530df3SAlex Elder * Note: returned pointer is the address of a structure that's 2054a3530df3SAlex Elder * managed separately. Caller must *not* attempt to free it. 2055a3530df3SAlex Elder */ 2056a3530df3SAlex Elder static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con, 20578f43fb53SAlex Elder int *proto, int force_new) 20583d14c5d2SYehuda Sadeh { 20593d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 20603d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 20613d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 206274f1869fSAlex Elder struct ceph_auth_handshake *auth = &o->o_auth; 20633d14c5d2SYehuda Sadeh 206474f1869fSAlex Elder if (force_new && auth->authorizer) { 2065a255651dSAlex Elder if (ac->ops && ac->ops->destroy_authorizer) 206674f1869fSAlex Elder ac->ops->destroy_authorizer(ac, auth->authorizer); 206774f1869fSAlex Elder auth->authorizer = NULL; 20683d14c5d2SYehuda Sadeh } 2069a255651dSAlex Elder if (!auth->authorizer && ac->ops && ac->ops->create_authorizer) { 2070a3530df3SAlex Elder int ret = ac->ops->create_authorizer(ac, CEPH_ENTITY_TYPE_OSD, 2071a3530df3SAlex Elder auth); 20723d14c5d2SYehuda Sadeh if (ret) 2073a3530df3SAlex Elder return ERR_PTR(ret); 20743d14c5d2SYehuda Sadeh } 20753d14c5d2SYehuda Sadeh *proto = ac->protocol; 207674f1869fSAlex Elder 2077a3530df3SAlex Elder return auth; 20783d14c5d2SYehuda Sadeh } 20793d14c5d2SYehuda Sadeh 20803d14c5d2SYehuda Sadeh 20813d14c5d2SYehuda Sadeh static int verify_authorizer_reply(struct ceph_connection *con, int len) 20823d14c5d2SYehuda Sadeh { 20833d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 20843d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 20853d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 20863d14c5d2SYehuda Sadeh 2087a255651dSAlex Elder /* 2088a255651dSAlex Elder * XXX If ac->ops or ac->ops->verify_authorizer_reply is null, 2089a255651dSAlex Elder * XXX which do we do: succeed or fail? 2090a255651dSAlex Elder */ 20916c4a1915SAlex Elder return ac->ops->verify_authorizer_reply(ac, o->o_auth.authorizer, len); 20923d14c5d2SYehuda Sadeh } 20933d14c5d2SYehuda Sadeh 20943d14c5d2SYehuda Sadeh static int invalidate_authorizer(struct ceph_connection *con) 20953d14c5d2SYehuda Sadeh { 20963d14c5d2SYehuda Sadeh struct ceph_osd *o = con->private; 20973d14c5d2SYehuda Sadeh struct ceph_osd_client *osdc = o->o_osdc; 20983d14c5d2SYehuda Sadeh struct ceph_auth_client *ac = osdc->client->monc.auth; 20993d14c5d2SYehuda Sadeh 2100a255651dSAlex Elder if (ac->ops && ac->ops->invalidate_authorizer) 21013d14c5d2SYehuda Sadeh ac->ops->invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD); 21023d14c5d2SYehuda Sadeh 21033d14c5d2SYehuda Sadeh return ceph_monc_validate_auth(&osdc->client->monc); 21043d14c5d2SYehuda Sadeh } 21053d14c5d2SYehuda Sadeh 21063d14c5d2SYehuda Sadeh static const struct ceph_connection_operations osd_con_ops = { 21073d14c5d2SYehuda Sadeh .get = get_osd_con, 21083d14c5d2SYehuda Sadeh .put = put_osd_con, 21093d14c5d2SYehuda Sadeh .dispatch = dispatch, 21103d14c5d2SYehuda Sadeh .get_authorizer = get_authorizer, 21113d14c5d2SYehuda Sadeh .verify_authorizer_reply = verify_authorizer_reply, 21123d14c5d2SYehuda Sadeh .invalidate_authorizer = invalidate_authorizer, 21133d14c5d2SYehuda Sadeh .alloc_msg = alloc_msg, 21143d14c5d2SYehuda Sadeh .fault = osd_reset, 21153d14c5d2SYehuda Sadeh }; 2116