1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/ost/ost_handler.c
38 * Author: Peter J. Braam <braam@clusterfs.com>
39 * Author: Phil Schwan <phil@clusterfs.com>
43 # define EXPORT_SYMTAB
45 #define DEBUG_SUBSYSTEM S_OST
47 #include <linux/module.h>
48 #include <obd_cksum.h>
50 #include <lustre_net.h>
51 #include <lustre_dlm.h>
52 #include <lustre_export.h>
53 #include <lustre_debug.h>
54 #include <linux/init.h>
55 #include <lprocfs_status.h>
56 #include <libcfs/list.h>
57 #include <lustre_quota.h>
58 #include "ost_internal.h"
60 static int oss_num_threads;
61 CFS_MODULE_PARM(oss_num_threads, "i", int, 0444,
62 "number of OSS service threads to start");
64 static int ost_num_threads;
65 CFS_MODULE_PARM(ost_num_threads, "i", int, 0444,
66 "number of OST service threads to start (deprecated)");
68 static int oss_num_create_threads;
69 CFS_MODULE_PARM(oss_num_create_threads, "i", int, 0444,
70 "number of OSS create threads to start");
73 * Do not return server-side uid/gid to remote client
75 static void ost_drop_id(struct obd_export *exp, struct obdo *oa)
77 if (exp_connect_rmtclient(exp)) {
80 oa->o_valid &= ~(OBD_MD_FLUID | OBD_MD_FLGID);
84 void oti_to_request(struct obd_trans_info *oti, struct ptlrpc_request *req)
86 struct oti_req_ack_lock *ack_lock;
93 lustre_msg_set_transno(req->rq_repmsg, oti->oti_transno);
94 req->rq_transno = oti->oti_transno;
96 /* XXX 4 == entries in oti_ack_locks??? */
97 for (ack_lock = oti->oti_ack_locks, i = 0; i < 4; i++, ack_lock++) {
100 /* XXX not even calling target_send_reply in some cases... */
101 ptlrpc_save_lock (req, &ack_lock->lock, ack_lock->mode, 0);
105 static int ost_destroy(struct obd_export *exp, struct ptlrpc_request *req,
106 struct obd_trans_info *oti)
108 struct ost_body *body, *repbody;
109 struct lustre_capa *capa = NULL;
113 /* Get the request body */
114 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
118 if (body->oa.o_id == 0)
121 /* If there's a DLM request, cancel the locks mentioned in it*/
122 if (req_capsule_field_present(&req->rq_pill, &RMF_DLM_REQ, RCL_CLIENT)) {
123 struct ldlm_request *dlm;
125 dlm = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ);
128 ldlm_request_cancel(req, dlm, 0);
131 /* If there's a capability, get it */
132 if (body->oa.o_valid & OBD_MD_FLOSSCAPA) {
133 capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1);
135 CERROR("Missing capability for OST DESTROY");
140 /* Prepare the reply */
141 rc = req_capsule_server_pack(&req->rq_pill);
145 /* Get the log cancellation cookie */
146 if (body->oa.o_valid & OBD_MD_FLCOOKIE)
147 oti->oti_logcookies = &body->oa.o_lcookie;
149 /* Finish the reply */
150 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
151 memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
153 /* Do the destroy and set the reply status accordingly */
154 req->rq_status = obd_destroy(exp, &body->oa, NULL, oti, NULL, capa);
159 * Helper function for getting server side [start, start+count] DLM lock
160 * if asked by client.
162 static int ost_lock_get(struct obd_export *exp, struct obdo *oa,
163 __u64 start, __u64 count, struct lustre_handle *lh,
166 struct ldlm_res_id res_id = { .name = { oa->o_id, 0, oa->o_gr, 0} };
167 ldlm_policy_data_t policy;
168 __u64 end = start + count;
172 LASSERT(!lustre_handle_is_used(lh));
173 LASSERT((oa->o_valid & (OBD_MD_FLID | OBD_MD_FLGROUP)) ==
174 (OBD_MD_FLID | OBD_MD_FLGROUP));
176 if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
177 !(oa->o_flags & OBD_FL_SRVLOCK))
180 CDEBUG(D_INODE, "OST-side extent lock.\n");
182 policy.l_extent.start = start & CFS_PAGE_MASK;
184 /* If ->o_blocks is EOF it means "lock till the end of the
185 * file". Otherwise, it's size of a hole being punched (in bytes) */
186 if (count == OBD_OBJECT_EOF || end < start)
187 policy.l_extent.end = OBD_OBJECT_EOF;
189 policy.l_extent.end = end | ~CFS_PAGE_MASK;
191 RETURN(ldlm_cli_enqueue_local(exp->exp_obd->obd_namespace, &res_id,
192 LDLM_EXTENT, &policy, mode, &flags,
193 ldlm_blocking_ast, ldlm_completion_ast,
194 ldlm_glimpse_ast, NULL, 0, NULL, lh));
197 /* Helper function: release lock, if any. */
198 static void ost_lock_put(struct obd_export *exp,
199 struct lustre_handle *lh, int mode)
202 if (lustre_handle_is_used(lh))
203 ldlm_lock_decref(lh, mode);
207 static int ost_getattr(struct obd_export *exp, struct ptlrpc_request *req)
209 struct ost_body *body, *repbody;
210 struct obd_info oinfo = { { { 0 } } };
211 struct lustre_handle lh = { 0 };
215 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
219 rc = req_capsule_server_pack(&req->rq_pill);
223 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
224 repbody->oa = body->oa;
226 rc = ost_lock_get(exp, &body->oa, 0, OBD_OBJECT_EOF, &lh, LCK_PR, 0);
230 oinfo.oi_oa = &repbody->oa;
231 if (oinfo.oi_oa->o_valid & OBD_MD_FLOSSCAPA) {
232 oinfo.oi_capa = req_capsule_client_get(&req->rq_pill,
234 if (oinfo.oi_capa == NULL) {
235 CERROR("Missing capability for OST GETATTR");
240 req->rq_status = obd_getattr(exp, &oinfo);
241 ost_lock_put(exp, &lh, LCK_PR);
243 ost_drop_id(exp, &repbody->oa);
247 static int ost_statfs(struct ptlrpc_request *req)
249 struct obd_statfs *osfs;
253 rc = req_capsule_server_pack(&req->rq_pill);
257 osfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
259 req->rq_status = obd_statfs(req->rq_export->exp_obd, osfs,
260 cfs_time_current_64() - CFS_HZ, 0);
261 if (req->rq_status != 0)
262 CERROR("ost: statfs failed: rc %d\n", req->rq_status);
267 static int ost_create(struct obd_export *exp, struct ptlrpc_request *req,
268 struct obd_trans_info *oti)
270 struct ost_body *body, *repbody;
274 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
278 rc = req_capsule_server_pack(&req->rq_pill);
282 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
283 memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
284 oti->oti_logcookies = &repbody->oa.o_lcookie;
286 req->rq_status = obd_create(exp, &repbody->oa, NULL, oti);
287 //obd_log_cancel(conn, NULL, 1, oti->oti_logcookies, 0);
291 static int ost_punch(struct obd_export *exp, struct ptlrpc_request *req,
292 struct obd_trans_info *oti)
294 struct obd_info oinfo = { { { 0 } } };
295 struct ost_body *body, *repbody;
297 struct lustre_handle lh = {0,};
300 /* check that we do support OBD_CONNECT_TRUNCLOCK. */
301 CLASSERT(OST_CONNECT_SUPPORTED & OBD_CONNECT_TRUNCLOCK);
303 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
307 oinfo.oi_oa = &body->oa;
308 oinfo.oi_policy.l_extent.start = oinfo.oi_oa->o_size;
309 oinfo.oi_policy.l_extent.end = oinfo.oi_oa->o_blocks;
311 if ((oinfo.oi_oa->o_valid & (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS)) !=
312 (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS))
315 rc = req_capsule_server_pack(&req->rq_pill);
319 /* standard truncate optimization: if file body is completely
320 * destroyed, don't send data back to the server. */
321 if (oinfo.oi_oa->o_size == 0)
322 flags |= LDLM_AST_DISCARD_DATA;
324 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
325 rc = ost_lock_get(exp, oinfo.oi_oa, oinfo.oi_oa->o_size,
326 oinfo.oi_oa->o_blocks, &lh, LCK_PW, flags);
328 if (oinfo.oi_oa->o_valid & OBD_MD_FLFLAGS &&
329 oinfo.oi_oa->o_flags == OBD_FL_SRVLOCK)
331 * If OBD_FL_SRVLOCK is the only bit set in
332 * ->o_flags, clear OBD_MD_FLFLAGS to avoid falling
333 * through filter_setattr() to filter_iocontrol().
335 oinfo.oi_oa->o_valid &= ~OBD_MD_FLFLAGS;
337 if (oinfo.oi_oa->o_valid & OBD_MD_FLOSSCAPA) {
338 oinfo.oi_capa = req_capsule_client_get(&req->rq_pill,
340 if (oinfo.oi_capa == NULL) {
341 CERROR("Missing capability for OST PUNCH");
345 req->rq_status = obd_punch(exp, &oinfo, oti, NULL);
346 ost_lock_put(exp, &lh, LCK_PW);
348 repbody->oa = *oinfo.oi_oa;
349 ost_drop_id(exp, &repbody->oa);
353 static int ost_sync(struct obd_export *exp, struct ptlrpc_request *req)
355 struct ost_body *body, *repbody;
356 struct lustre_capa *capa = NULL;
360 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
364 if (body->oa.o_valid & OBD_MD_FLOSSCAPA) {
365 capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1);
367 CERROR("Missing capability for OST SYNC");
372 rc = req_capsule_server_pack(&req->rq_pill);
376 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
377 memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
378 req->rq_status = obd_sync(exp, &repbody->oa, NULL, repbody->oa.o_size,
379 repbody->oa.o_blocks, capa);
380 ost_drop_id(exp, &repbody->oa);
384 static int ost_setattr(struct obd_export *exp, struct ptlrpc_request *req,
385 struct obd_trans_info *oti)
387 struct ost_body *body, *repbody;
389 struct obd_info oinfo = { { { 0 } } };
392 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
396 rc = req_capsule_server_pack(&req->rq_pill);
400 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
401 repbody->oa = body->oa;
403 oinfo.oi_oa = &repbody->oa;
404 if (oinfo.oi_oa->o_valid & OBD_MD_FLOSSCAPA) {
405 oinfo.oi_capa = req_capsule_client_get(&req->rq_pill,
407 if (oinfo.oi_capa == NULL) {
408 CERROR("Missing capability for OST SETATTR");
412 req->rq_status = obd_setattr(exp, &oinfo, oti);
413 ost_drop_id(exp, &repbody->oa);
417 static int ost_bulk_timeout(void *data)
420 /* We don't fail the connection here, because having the export
421 * killed makes the (vital) call to commitrw very sad.
426 static __u32 ost_checksum_bulk(struct ptlrpc_bulk_desc *desc, int opc,
427 cksum_type_t cksum_type)
432 cksum = init_checksum(cksum_type);
433 for (i = 0; i < desc->bd_iov_count; i++) {
434 struct page *page = desc->bd_iov[i].kiov_page;
435 int off = desc->bd_iov[i].kiov_offset & ~CFS_PAGE_MASK;
436 char *ptr = kmap(page) + off;
437 int len = desc->bd_iov[i].kiov_len;
439 /* corrupt the data before we compute the checksum, to
440 * simulate a client->OST data error */
441 if (i == 0 && opc == OST_WRITE &&
442 OBD_FAIL_CHECK(OBD_FAIL_OST_CHECKSUM_RECEIVE))
443 memcpy(ptr, "bad3", min(4, len));
444 cksum = compute_checksum(cksum, ptr, len, cksum_type);
445 /* corrupt the data after we compute the checksum, to
446 * simulate an OST->client data error */
447 if (i == 0 && opc == OST_READ &&
448 OBD_FAIL_CHECK(OBD_FAIL_OST_CHECKSUM_SEND)) {
449 memcpy(ptr, "bad4", min(4, len));
450 /* nobody should use corrupted page again */
451 ClearPageUptodate(page);
459 static int ost_brw_lock_get(int mode, struct obd_export *exp,
460 struct obd_ioobj *obj, struct niobuf_remote *nb,
461 struct lustre_handle *lh)
464 int nrbufs = obj->ioo_bufcnt;
465 struct ldlm_res_id res_id;
466 ldlm_policy_data_t policy;
470 osc_build_res_name(obj->ioo_id, obj->ioo_gr, &res_id);
471 LASSERT(mode == LCK_PR || mode == LCK_PW);
472 LASSERT(!lustre_handle_is_used(lh));
474 if (nrbufs == 0 || !(nb[0].flags & OBD_BRW_SRVLOCK))
477 for (i = 1; i < nrbufs; i ++)
478 if ((nb[0].flags & OBD_BRW_SRVLOCK) !=
479 (nb[i].flags & OBD_BRW_SRVLOCK))
482 policy.l_extent.start = nb[0].offset & CFS_PAGE_MASK;
483 policy.l_extent.end = (nb[nrbufs - 1].offset +
484 nb[nrbufs - 1].len - 1) | ~CFS_PAGE_MASK;
486 RETURN(ldlm_cli_enqueue_local(exp->exp_obd->obd_namespace, &res_id,
487 LDLM_EXTENT, &policy, mode, &flags,
488 ldlm_blocking_ast, ldlm_completion_ast,
489 ldlm_glimpse_ast, NULL, 0, NULL, lh));
492 static void ost_brw_lock_put(int mode,
493 struct obd_ioobj *obj, struct niobuf_remote *niob,
494 struct lustre_handle *lh)
497 LASSERT(mode == LCK_PR || mode == LCK_PW);
498 LASSERT((obj->ioo_bufcnt > 0 && (niob[0].flags & OBD_BRW_SRVLOCK)) ==
499 lustre_handle_is_used(lh));
500 if (lustre_handle_is_used(lh))
501 ldlm_lock_decref(lh, mode);
505 struct ost_prolong_data {
506 struct obd_export *opd_exp;
507 ldlm_policy_data_t opd_policy;
509 ldlm_mode_t opd_mode;
514 static int ost_prolong_locks_iter(struct ldlm_lock *lock, void *data)
516 struct ost_prolong_data *opd = data;
518 LASSERT(lock->l_resource->lr_type == LDLM_EXTENT);
520 if (lock->l_req_mode != lock->l_granted_mode) {
521 /* scan granted locks only */
522 return LDLM_ITER_STOP;
525 if (lock->l_export != opd->opd_exp) {
526 /* prolong locks only for given client */
527 return LDLM_ITER_CONTINUE;
530 if (!(lock->l_granted_mode & opd->opd_mode)) {
531 /* we aren't interesting in all type of locks */
532 return LDLM_ITER_CONTINUE;
535 if (lock->l_policy_data.l_extent.end < opd->opd_policy.l_extent.start ||
536 lock->l_policy_data.l_extent.start > opd->opd_policy.l_extent.end) {
537 /* the request doesn't cross the lock, skip it */
538 return LDLM_ITER_CONTINUE;
541 /* Fill the obdo with the matched lock handle.
542 * XXX: it is possible in some cases the IO RPC is covered by several
543 * locks, even for the write case, so it may need to be a lock list. */
544 if (opd->opd_oa && !(opd->opd_oa->o_valid & OBD_MD_FLHANDLE)) {
545 opd->opd_oa->o_handle.cookie = lock->l_handle.h_cookie;
546 opd->opd_oa->o_valid |= OBD_MD_FLHANDLE;
549 if (!(lock->l_flags & LDLM_FL_AST_SENT)) {
550 /* ignore locks not being cancelled */
551 return LDLM_ITER_CONTINUE;
554 CDEBUG(D_DLMTRACE,"refresh lock: "LPU64"/"LPU64" ("LPU64"->"LPU64")\n",
555 lock->l_resource->lr_name.name[0],
556 lock->l_resource->lr_name.name[1],
557 opd->opd_policy.l_extent.start, opd->opd_policy.l_extent.end);
558 /* OK. this is a possible lock the user holds doing I/O
559 * let's refresh eviction timer for it */
560 ldlm_refresh_waiting_lock(lock, opd->opd_timeout);
561 opd->opd_lock_match = 1;
563 return LDLM_ITER_CONTINUE;
566 static int ost_rw_prolong_locks(struct ptlrpc_request *req, struct obd_ioobj *obj,
567 struct niobuf_remote *nb, struct obdo *oa,
570 struct ldlm_res_id res_id;
571 int nrbufs = obj->ioo_bufcnt;
572 struct ost_prolong_data opd = { 0 };
575 osc_build_res_name(obj->ioo_id, obj->ioo_gr, &res_id);
578 opd.opd_exp = req->rq_export;
579 opd.opd_policy.l_extent.start = nb[0].offset & CFS_PAGE_MASK;
580 opd.opd_policy.l_extent.end = (nb[nrbufs - 1].offset +
581 nb[nrbufs - 1].len - 1) | ~CFS_PAGE_MASK;
583 /* prolong locks for the current service time of the corresponding
584 * portal (= OST_IO_PORTAL) */
585 opd.opd_timeout = AT_OFF ? obd_timeout / 2:
586 max(at_est2timeout(at_get(&req->rq_rqbd->
587 rqbd_service->srv_at_estimate)), ldlm_timeout);
589 CDEBUG(D_INFO,"refresh locks: "LPU64"/"LPU64" ("LPU64"->"LPU64")\n",
590 res_id.name[0], res_id.name[1], opd.opd_policy.l_extent.start,
591 opd.opd_policy.l_extent.end);
593 if (oa->o_valid & OBD_MD_FLHANDLE) {
594 struct ldlm_lock *lock;
596 lock = ldlm_handle2lock(&oa->o_handle);
598 ost_prolong_locks_iter(lock, &opd);
599 if (opd.opd_lock_match) {
604 /* Check if the lock covers the whole IO region,
605 * otherwise iterate through the resource. */
606 if (lock->l_policy_data.l_extent.end >=
607 opd.opd_policy.l_extent.end &&
608 lock->l_policy_data.l_extent.start <=
609 opd.opd_policy.l_extent.start) {
618 ldlm_resource_iterate(req->rq_export->exp_obd->obd_namespace, &res_id,
619 ost_prolong_locks_iter, &opd);
620 RETURN(opd.opd_lock_match);
623 static int ost_brw_read(struct ptlrpc_request *req, struct obd_trans_info *oti)
625 struct ptlrpc_bulk_desc *desc = NULL;
626 struct obd_export *exp = req->rq_export;
627 struct niobuf_remote *remote_nb;
628 struct niobuf_local *local_nb;
629 struct obd_ioobj *ioo;
630 struct ost_body *body, *repbody;
631 struct lustre_capa *capa = NULL;
632 struct l_wait_info lwi;
633 struct lustre_handle lockh = { 0 };
634 int niocount, npages, nob = 0, rc, i;
638 req->rq_bulk_read = 1;
640 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_READ_BULK))
641 GOTO(out, rc = -EIO);
643 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_BULK, (obd_timeout + 1) / 4);
645 /* Check if there is eviction in progress, and if so, wait for it to
647 if (unlikely(cfs_atomic_read(&exp->exp_obd->obd_evict_inprogress))) {
648 lwi = LWI_INTR(NULL, NULL); // We do not care how long it takes
649 rc = l_wait_event(exp->exp_obd->obd_evict_inprogress_waitq,
650 !cfs_atomic_read(&exp->exp_obd->obd_evict_inprogress),
654 GOTO(out, rc = -ENOTCONN);
656 /* ost_body, ioobj & noibuf_remote are verified and swabbed in
657 * ost_rw_hpreq_check(). */
658 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
660 GOTO(out, rc = -EFAULT);
663 * A req_capsule_X_get_array(pill, field, ptr_to_element_count) function
664 * would be useful here and wherever we get &RMF_OBD_IOOBJ and
665 * &RMF_NIOBUF_REMOTE.
667 ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
669 GOTO(out, rc = -EFAULT);
671 niocount = ioo->ioo_bufcnt;
672 remote_nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
673 if (remote_nb == NULL)
674 GOTO(out, rc = -EFAULT);
676 if (body->oa.o_valid & OBD_MD_FLOSSCAPA) {
677 capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1);
679 CERROR("Missing capability for OST BRW READ");
680 GOTO(out, rc = -EFAULT);
684 rc = req_capsule_server_pack(&req->rq_pill);
689 * Per-thread array of struct niobuf_{local,remote}'s was allocated by
692 local_nb = ost_tls(req)->local;
694 rc = ost_brw_lock_get(LCK_PR, exp, ioo, remote_nb, &lockh);
699 * If getting the lock took more time than
700 * client was willing to wait, drop it. b=11330
702 if (cfs_time_current_sec() > req->rq_deadline ||
703 OBD_FAIL_CHECK(OBD_FAIL_OST_DROP_REQ)) {
705 CERROR("Dropping timed-out read from %s because locking"
706 "object "LPX64" took %ld seconds (limit was %ld).\n",
707 libcfs_id2str(req->rq_peer), ioo->ioo_id,
708 cfs_time_current_sec() - req->rq_arrival_time.tv_sec,
709 req->rq_deadline - req->rq_arrival_time.tv_sec);
710 GOTO(out_lock, rc = -ETIMEDOUT);
713 npages = OST_THREAD_POOL_SIZE;
714 rc = obd_preprw(OBD_BRW_READ, exp, &body->oa, 1, ioo,
715 remote_nb, &npages, local_nb, oti, capa);
719 desc = ptlrpc_prep_bulk_exp(req, npages,
720 BULK_PUT_SOURCE, OST_BULK_PORTAL);
722 GOTO(out_lock, rc = -ENOMEM);
724 if (!lustre_handle_is_used(&lockh))
725 /* no needs to try to prolong lock if server is asked
726 * to handle locking (= OBD_BRW_SRVLOCK) */
727 ost_rw_prolong_locks(req, ioo, remote_nb, &body->oa,
731 for (i = 0; i < npages; i++) {
732 int page_rc = local_nb[i].rc;
734 if (page_rc < 0) { /* error */
740 if (page_rc != 0) { /* some data! */
741 LASSERT (local_nb[i].page != NULL);
742 ptlrpc_prep_bulk_page(desc, local_nb[i].page,
743 local_nb[i].offset & ~CFS_PAGE_MASK,
747 if (page_rc != local_nb[i].len) { /* short read */
748 /* All subsequent pages should be 0 */
750 LASSERT(local_nb[i].rc == 0);
755 if (body->oa.o_valid & OBD_MD_FLCKSUM) {
756 cksum_type_t cksum_type = OBD_CKSUM_CRC32;
758 if (body->oa.o_valid & OBD_MD_FLFLAGS)
759 cksum_type = cksum_type_unpack(body->oa.o_flags);
760 body->oa.o_flags = cksum_type_pack(cksum_type);
761 body->oa.o_valid = OBD_MD_FLCKSUM | OBD_MD_FLFLAGS;
762 body->oa.o_cksum = ost_checksum_bulk(desc, OST_READ, cksum_type);
763 CDEBUG(D_PAGE,"checksum at read origin: %x\n",body->oa.o_cksum);
765 body->oa.o_valid = 0;
767 /* We're finishing using body->oa as an input variable */
769 /* Check if client was evicted while we were doing i/o before touching
772 /* Check if there is eviction in progress, and if so, wait for
774 if (unlikely(cfs_atomic_read(&exp->exp_obd->
775 obd_evict_inprogress))) {
776 lwi = LWI_INTR(NULL, NULL);
777 rc = l_wait_event(exp->exp_obd->
778 obd_evict_inprogress_waitq,
779 !cfs_atomic_read(&exp->exp_obd->
780 obd_evict_inprogress),
783 /* Check if client was evicted or tried to reconnect already */
784 if (exp->exp_failed || exp->exp_abort_active_req)
787 rc = sptlrpc_svc_wrap_bulk(req, desc);
789 rc = ptlrpc_start_bulk_transfer(desc);
793 time_t start = cfs_time_current_sec();
795 long timeoutl = req->rq_deadline -
796 cfs_time_current_sec();
797 cfs_duration_t timeout = timeoutl <= 0 ?
798 CFS_TICK : cfs_time_seconds(timeoutl);
799 lwi = LWI_TIMEOUT_INTERVAL(timeout,
803 rc = l_wait_event(desc->bd_waitq,
804 !ptlrpc_server_bulk_active(desc) ||
806 exp->exp_abort_active_req,
808 LASSERT(rc == 0 || rc == -ETIMEDOUT);
809 /* Wait again if we changed deadline */
810 } while ((rc == -ETIMEDOUT) &&
811 (req->rq_deadline > cfs_time_current_sec()));
813 if (rc == -ETIMEDOUT) {
814 DEBUG_REQ(D_ERROR, req,
815 "timeout on bulk PUT after %ld%+lds",
816 req->rq_deadline - start,
817 cfs_time_current_sec() -
819 ptlrpc_abort_bulk(desc);
820 } else if (exp->exp_failed) {
821 DEBUG_REQ(D_ERROR, req, "Eviction on bulk PUT");
823 ptlrpc_abort_bulk(desc);
824 } else if (exp->exp_abort_active_req) {
825 DEBUG_REQ(D_ERROR, req, "Reconnect on bulk PUT");
826 /* we don't reply anyway */
828 ptlrpc_abort_bulk(desc);
829 } else if (!desc->bd_success ||
830 desc->bd_nob_transferred != desc->bd_nob) {
831 DEBUG_REQ(D_ERROR, req, "%s bulk PUT %d(%d)",
833 "truncated" : "network error on",
834 desc->bd_nob_transferred,
836 /* XXX should this be a different errno? */
840 DEBUG_REQ(D_ERROR, req, "bulk PUT failed: rc %d", rc);
845 /* Must commit after prep above in all cases */
846 rc = obd_commitrw(OBD_BRW_READ, exp, &body->oa, 1, ioo,
847 remote_nb, npages, local_nb, oti, rc);
850 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
851 memcpy(&repbody->oa, &body->oa, sizeof(repbody->oa));
852 ost_drop_id(exp, &repbody->oa);
856 ost_brw_lock_put(LCK_PR, ioo, remote_nb, &lockh);
859 ptlrpc_free_bulk(desc);
863 req->rq_status = nob;
864 ptlrpc_lprocfs_brw(req, nob);
865 target_committed_to_req(req);
867 } else if (!no_reply) {
868 /* Only reply if there was no comms problem with bulk */
869 target_committed_to_req(req);
873 /* reply out callback would free */
874 ptlrpc_req_drop_rs(req);
875 CWARN("%s: ignoring bulk IO comm error with %s@%s id %s - "
876 "client will retry\n",
877 exp->exp_obd->obd_name,
878 exp->exp_client_uuid.uuid,
879 exp->exp_connection->c_remote_uuid.uuid,
880 libcfs_id2str(req->rq_peer));
886 static int ost_brw_write(struct ptlrpc_request *req, struct obd_trans_info *oti)
888 struct ptlrpc_bulk_desc *desc = NULL;
889 struct obd_export *exp = req->rq_export;
890 struct niobuf_remote *remote_nb;
891 struct niobuf_local *local_nb;
892 struct obd_ioobj *ioo;
893 struct ost_body *body, *repbody;
894 struct l_wait_info lwi;
895 struct lustre_handle lockh = {0};
896 struct lustre_capa *capa = NULL;
898 int objcount, niocount, npages;
900 obd_count client_cksum = 0, server_cksum = 0;
901 cksum_type_t cksum_type = OBD_CKSUM_CRC32;
903 __u32 o_uid = 0, o_gid = 0;
906 req->rq_bulk_write = 1;
908 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_WRITE_BULK))
909 GOTO(out, rc = -EIO);
910 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_WRITE_BULK2))
911 GOTO(out, rc = -EFAULT);
913 /* pause before transaction has been started */
914 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_BULK, (obd_timeout + 1) / 4);
916 /* Check if there is eviction in progress, and if so, wait for it to
918 if (unlikely(cfs_atomic_read(&exp->exp_obd->obd_evict_inprogress))) {
919 lwi = LWI_INTR(NULL, NULL); // We do not care how long it takes
920 rc = l_wait_event(exp->exp_obd->obd_evict_inprogress_waitq,
921 !cfs_atomic_read(&exp->exp_obd->obd_evict_inprogress),
925 GOTO(out, rc = -ENOTCONN);
927 /* ost_body, ioobj & noibuf_remote are verified and swabbed in
928 * ost_rw_hpreq_check(). */
929 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
931 GOTO(out, rc = -EFAULT);
933 if ((body->oa.o_flags & OBD_BRW_MEMALLOC) &&
934 (exp->exp_connection->c_peer.nid == exp->exp_connection->c_self))
935 libcfs_memory_pressure_set();
937 objcount = req_capsule_get_size(&req->rq_pill, &RMF_OBD_IOOBJ,
938 RCL_CLIENT) / sizeof(*ioo);
939 ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
941 GOTO(out, rc = -EFAULT);
942 for (niocount = i = 0; i < objcount; i++)
943 niocount += ioo[i].ioo_bufcnt;
946 * It'd be nice to have a capsule function to indicate how many elements
947 * there were in a buffer for an RMF that's declared to be an array.
948 * It's easy enough to compute the number of elements here though.
950 remote_nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
951 if (remote_nb == NULL || niocount != (req_capsule_get_size(&req->rq_pill,
952 &RMF_NIOBUF_REMOTE, RCL_CLIENT) / sizeof(*remote_nb)))
953 GOTO(out, rc = -EFAULT);
955 if (body->oa.o_valid & OBD_MD_FLOSSCAPA) {
956 capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1);
958 CERROR("Missing capability for OST BRW WRITE");
959 GOTO(out, rc = -EFAULT);
963 req_capsule_set_size(&req->rq_pill, &RMF_RCS, RCL_SERVER,
964 niocount * sizeof(*rcs));
965 rc = req_capsule_server_pack(&req->rq_pill);
968 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_PACK, obd_fail_val);
969 rcs = req_capsule_server_get(&req->rq_pill, &RMF_RCS);
972 * Per-thread array of struct niobuf_{local,remote}'s was allocated by
975 local_nb = ost_tls(req)->local;
977 rc = ost_brw_lock_get(LCK_PW, exp, ioo, remote_nb, &lockh);
982 * If getting the lock took more time than
983 * client was willing to wait, drop it. b=11330
985 if (cfs_time_current_sec() > req->rq_deadline ||
986 OBD_FAIL_CHECK(OBD_FAIL_OST_DROP_REQ)) {
988 CERROR("Dropping timed-out write from %s because locking "
989 "object "LPX64" took %ld seconds (limit was %ld).\n",
990 libcfs_id2str(req->rq_peer), ioo->ioo_id,
991 cfs_time_current_sec() - req->rq_arrival_time.tv_sec,
992 req->rq_deadline - req->rq_arrival_time.tv_sec);
993 GOTO(out_lock, rc = -ETIMEDOUT);
996 if (!lustre_handle_is_used(&lockh))
997 /* no needs to try to prolong lock if server is asked
998 * to handle locking (= OBD_BRW_SRVLOCK) */
999 ost_rw_prolong_locks(req, ioo, remote_nb,&body->oa, LCK_PW);
1001 /* obd_preprw clobbers oa->valid, so save what we need */
1002 if (body->oa.o_valid & OBD_MD_FLCKSUM) {
1003 client_cksum = body->oa.o_cksum;
1004 if (body->oa.o_valid & OBD_MD_FLFLAGS)
1005 cksum_type = cksum_type_unpack(body->oa.o_flags);
1008 /* Because we already sync grant info with client when reconnect,
1009 * grant info will be cleared for resent req, then fed_grant and
1010 * total_grant will not be modified in following preprw_write */
1011 if (lustre_msg_get_flags(req->rq_reqmsg) & (MSG_RESENT | MSG_REPLAY)) {
1012 DEBUG_REQ(D_CACHE, req, "clear resent/replay req grant info");
1013 body->oa.o_valid &= ~OBD_MD_FLGRANT;
1016 if (exp_connect_rmtclient(exp)) {
1017 o_uid = body->oa.o_uid;
1018 o_gid = body->oa.o_gid;
1020 npages = OST_THREAD_POOL_SIZE;
1021 rc = obd_preprw(OBD_BRW_WRITE, exp, &body->oa, objcount,
1022 ioo, remote_nb, &npages, local_nb, oti, capa);
1026 desc = ptlrpc_prep_bulk_exp(req, npages,
1027 BULK_GET_SINK, OST_BULK_PORTAL);
1029 GOTO(out_lock, rc = -ENOMEM);
1031 /* NB Having prepped, we must commit... */
1033 for (i = 0; i < npages; i++)
1034 ptlrpc_prep_bulk_page(desc, local_nb[i].page,
1035 local_nb[i].offset & ~CFS_PAGE_MASK,
1038 rc = sptlrpc_svc_prep_bulk(req, desc);
1042 /* Check if client was evicted or tried to reconnect while we
1043 * were doing i/o before touching network */
1044 if (desc->bd_export->exp_failed ||
1045 desc->bd_export->exp_abort_active_req)
1048 rc = ptlrpc_start_bulk_transfer(desc);
1050 time_t start = cfs_time_current_sec();
1052 long timeoutl = req->rq_deadline -
1053 cfs_time_current_sec();
1054 cfs_duration_t timeout = timeoutl <= 0 ?
1055 CFS_TICK : cfs_time_seconds(timeoutl);
1056 lwi = LWI_TIMEOUT_INTERVAL(timeout, cfs_time_seconds(1),
1057 ost_bulk_timeout, desc);
1058 rc = l_wait_event(desc->bd_waitq,
1059 !ptlrpc_server_bulk_active(desc) ||
1060 desc->bd_export->exp_failed ||
1061 desc->bd_export->exp_abort_active_req,
1063 LASSERT(rc == 0 || rc == -ETIMEDOUT);
1064 /* Wait again if we changed deadline */
1065 } while ((rc == -ETIMEDOUT) &&
1066 (req->rq_deadline > cfs_time_current_sec()));
1068 if (rc == -ETIMEDOUT) {
1069 DEBUG_REQ(D_ERROR, req,
1070 "timeout on bulk GET after %ld%+lds",
1071 req->rq_deadline - start,
1072 cfs_time_current_sec() -
1074 ptlrpc_abort_bulk(desc);
1075 } else if (desc->bd_export->exp_failed) {
1076 DEBUG_REQ(D_ERROR, req, "Eviction on bulk GET");
1078 ptlrpc_abort_bulk(desc);
1079 } else if (desc->bd_export->exp_abort_active_req) {
1080 DEBUG_REQ(D_ERROR, req, "Reconnect on bulk GET");
1081 /* we don't reply anyway */
1083 ptlrpc_abort_bulk(desc);
1084 } else if (!desc->bd_success) {
1085 DEBUG_REQ(D_ERROR, req, "network error on bulk GET");
1086 /* XXX should this be a different errno? */
1089 rc = sptlrpc_svc_unwrap_bulk(req, desc);
1092 DEBUG_REQ(D_ERROR, req, "ptlrpc_bulk_get failed: rc %d", rc);
1096 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
1097 memcpy(&repbody->oa, &body->oa, sizeof(repbody->oa));
1099 if (unlikely(client_cksum != 0 && rc == 0)) {
1100 static int cksum_counter;
1101 repbody->oa.o_valid |= OBD_MD_FLCKSUM | OBD_MD_FLFLAGS;
1102 repbody->oa.o_flags &= ~OBD_FL_CKSUM_ALL;
1103 repbody->oa.o_flags |= cksum_type_pack(cksum_type);
1104 server_cksum = ost_checksum_bulk(desc, OST_WRITE, cksum_type);
1105 repbody->oa.o_cksum = server_cksum;
1107 if (unlikely(client_cksum != server_cksum)) {
1108 CERROR("client csum %x, server csum %x\n",
1109 client_cksum, server_cksum);
1111 } else if ((cksum_counter & (-cksum_counter)) == cksum_counter){
1112 CDEBUG(D_INFO, "Checksum %u from %s OK: %x\n",
1113 cksum_counter, libcfs_id2str(req->rq_peer),
1118 /* Must commit after prep above in all cases */
1119 rc = obd_commitrw(OBD_BRW_WRITE, exp, &repbody->oa, objcount, ioo,
1120 remote_nb, npages, local_nb, oti, rc);
1121 if (rc == -ENOTCONN)
1122 /* quota acquire process has been given up because
1123 * either the client has been evicted or the client
1124 * has timed out the request already */
1127 if (exp_connect_rmtclient(exp)) {
1128 repbody->oa.o_uid = o_uid;
1129 repbody->oa.o_gid = o_gid;
1132 if (unlikely(client_cksum != server_cksum && rc == 0)) {
1133 int new_cksum = ost_checksum_bulk(desc, OST_WRITE, cksum_type);
1138 if (new_cksum == server_cksum)
1139 msg = "changed in transit before arrival at OST";
1140 else if (new_cksum == client_cksum)
1141 msg = "initial checksum before message complete";
1143 msg = "changed in transit AND after initial checksum";
1145 if (req->rq_peer.nid == desc->bd_sender) {
1149 router = libcfs_nid2str(desc->bd_sender);
1152 LCONSOLE_ERROR_MSG(0x168, "%s: BAD WRITE CHECKSUM: %s from "
1153 "%s%s%s inum "LPU64"/"LPU64" object "
1154 LPU64"/"LPU64" extent ["LPU64"-"LPU64"]\n",
1155 exp->exp_obd->obd_name, msg,
1156 libcfs_id2str(req->rq_peer),
1158 body->oa.o_valid & OBD_MD_FLFID ?
1159 body->oa.o_fid : (__u64)0,
1160 body->oa.o_valid & OBD_MD_FLFID ?
1161 body->oa.o_generation :(__u64)0,
1163 body->oa.o_valid & OBD_MD_FLGROUP ?
1164 body->oa.o_gr : (__u64)0,
1166 local_nb[npages-1].offset +
1167 local_nb[npages-1].len - 1 );
1168 CERROR("client csum %x, original server csum %x, "
1169 "server csum now %x\n",
1170 client_cksum, server_cksum, new_cksum);
1176 /* set per-requested niobuf return codes */
1177 for (i = j = 0; i < niocount; i++) {
1178 int len = remote_nb[i].len;
1183 LASSERT(j < npages);
1184 if (local_nb[j].rc < 0)
1185 rcs[i] = local_nb[j].rc;
1186 len -= local_nb[j].len;
1191 LASSERT(j == npages);
1192 ptlrpc_lprocfs_brw(req, nob);
1196 ost_brw_lock_put(LCK_PW, ioo, remote_nb, &lockh);
1199 ptlrpc_free_bulk(desc);
1202 oti_to_request(oti, req);
1203 target_committed_to_req(req);
1204 rc = ptlrpc_reply(req);
1205 } else if (!no_reply) {
1206 /* Only reply if there was no comms problem with bulk */
1207 target_committed_to_req(req);
1208 req->rq_status = rc;
1211 /* reply out callback would free */
1212 ptlrpc_req_drop_rs(req);
1213 CWARN("%s: ignoring bulk IO comm error with %s@%s id %s - "
1214 "client will retry\n",
1215 exp->exp_obd->obd_name,
1216 exp->exp_client_uuid.uuid,
1217 exp->exp_connection->c_remote_uuid.uuid,
1218 libcfs_id2str(req->rq_peer));
1220 libcfs_memory_pressure_clr();
1225 * Implementation of OST_SET_INFO.
1227 * OST_SET_INFO is like ioctl(): heavily overloaded. Specifically, it takes a
1228 * "key" and a value RPC buffers as arguments, with the value's contents
1229 * interpreted according to the key.
1231 * Value types that need swabbing have swabbing done explicitly, either here or
1232 * in functions called from here. This should be corrected: all swabbing should
1233 * be done in the capsule abstraction, as that will then allow us to move
1234 * swabbing exclusively to the client without having to modify server code
1235 * outside the capsule abstraction's implementation itself. To correct this
1236 * will require minor changes to the capsule abstraction; see the comments for
1237 * req_capsule_extend() in layout.c.
1239 static int ost_set_info(struct obd_export *exp, struct ptlrpc_request *req)
1241 struct ost_body *body = NULL, *repbody;
1242 char *key, *val = NULL;
1243 int keylen, vallen, rc = 0;
1244 int is_grant_shrink = 0;
1247 key = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
1249 DEBUG_REQ(D_HA, req, "no set_info key");
1252 keylen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_KEY,
1255 vallen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_VAL,
1258 if ((is_grant_shrink = KEY_IS(KEY_GRANT_SHRINK)))
1259 /* In this case the value is actually an RMF_OST_BODY, so we
1260 * transmutate the type of this PTLRPC */
1261 req_capsule_extend(&req->rq_pill, &RQF_OST_SET_GRANT_INFO);
1263 rc = req_capsule_server_pack(&req->rq_pill);
1268 if (is_grant_shrink) {
1269 body = req_capsule_client_get(&req->rq_pill,
1274 repbody = req_capsule_server_get(&req->rq_pill,
1276 memcpy(repbody, body, sizeof(*body));
1277 val = (char*)repbody;
1279 val = req_capsule_client_get(&req->rq_pill,
1284 if (KEY_IS(KEY_EVICT_BY_NID)) {
1286 obd_export_evict_by_nid(exp->exp_obd, val);
1288 } else if (KEY_IS(KEY_MDS_CONN) && ptlrpc_req_need_swab(req)) {
1289 if (vallen < sizeof(__u32))
1291 __swab32s((__u32 *)val);
1294 /* OBD will also check if KEY_IS(KEY_GRANT_SHRINK), and will cast val to
1295 * a struct ost_body * value */
1296 rc = obd_set_info_async(exp, keylen, key, vallen, val, NULL);
1298 lustre_msg_set_status(req->rq_repmsg, 0);
1302 static int ost_get_info(struct obd_export *exp, struct ptlrpc_request *req)
1305 int keylen, replylen, rc = 0;
1306 struct req_capsule *pill = &req->rq_pill;
1309 /* this common part for get_info rpc */
1310 key = req_capsule_client_get(pill, &RMF_SETINFO_KEY);
1312 DEBUG_REQ(D_HA, req, "no get_info key");
1315 keylen = req_capsule_get_size(pill, &RMF_SETINFO_KEY, RCL_CLIENT);
1317 rc = obd_get_info(exp, keylen, key, &replylen, NULL, NULL);
1321 req_capsule_set_size(pill, &RMF_GENERIC_DATA,
1322 RCL_SERVER, replylen);
1324 rc = req_capsule_server_pack(pill);
1328 reply = req_capsule_server_get(pill, &RMF_GENERIC_DATA);
1332 /* call again to fill in the reply buffer */
1333 rc = obd_get_info(exp, keylen, key, &replylen, reply, NULL);
1335 lustre_msg_set_status(req->rq_repmsg, 0);
1339 #ifdef HAVE_QUOTA_SUPPORT
1340 static int ost_handle_quotactl(struct ptlrpc_request *req)
1342 struct obd_quotactl *oqctl, *repoqc;
1346 oqctl = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
1348 GOTO(out, rc = -EPROTO);
1350 rc = req_capsule_server_pack(&req->rq_pill);
1354 repoqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
1355 req->rq_status = obd_quotactl(req->rq_export, oqctl);
1362 static int ost_handle_quotacheck(struct ptlrpc_request *req)
1364 struct obd_quotactl *oqctl;
1368 oqctl = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
1372 rc = req_capsule_server_pack(&req->rq_pill);
1376 req->rq_status = obd_quotacheck(req->rq_export, oqctl);
1380 static int ost_handle_quota_adjust_qunit(struct ptlrpc_request *req)
1382 struct quota_adjust_qunit *oqaq, *repoqa;
1383 struct lustre_quota_ctxt *qctxt;
1387 qctxt = &req->rq_export->exp_obd->u.obt.obt_qctxt;
1388 oqaq = req_capsule_client_get(&req->rq_pill, &RMF_QUOTA_ADJUST_QUNIT);
1390 GOTO(out, rc = -EPROTO);
1392 rc = req_capsule_server_pack(&req->rq_pill);
1396 repoqa = req_capsule_server_get(&req->rq_pill, &RMF_QUOTA_ADJUST_QUNIT);
1397 req->rq_status = obd_quota_adjust_qunit(req->rq_export, oqaq, qctxt);
1405 static int ost_llog_handle_connect(struct obd_export *exp,
1406 struct ptlrpc_request *req)
1408 struct llogd_conn_body *body;
1412 body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_CONN_BODY);
1413 rc = obd_llog_connect(exp, body);
1417 #define ost_init_sec_none(reply, exp) \
1419 reply->ocd_connect_flags &= ~(OBD_CONNECT_RMT_CLIENT | \
1420 OBD_CONNECT_RMT_CLIENT_FORCE | \
1421 OBD_CONNECT_OSS_CAPA); \
1422 cfs_spin_lock(&exp->exp_lock); \
1423 exp->exp_connect_flags = reply->ocd_connect_flags; \
1424 cfs_spin_unlock(&exp->exp_lock); \
1427 static int ost_init_sec_level(struct ptlrpc_request *req)
1429 struct obd_export *exp = req->rq_export;
1430 struct req_capsule *pill = &req->rq_pill;
1431 struct obd_device *obd = exp->exp_obd;
1432 struct filter_obd *filter = &obd->u.filter;
1433 char *client = libcfs_nid2str(req->rq_peer.nid);
1434 struct obd_connect_data *data, *reply;
1438 data = req_capsule_client_get(pill, &RMF_CONNECT_DATA);
1439 reply = req_capsule_server_get(pill, &RMF_CONNECT_DATA);
1440 if (data == NULL || reply == NULL)
1443 /* connection from MDT is always trusted */
1444 if (req->rq_auth_usr_mdt) {
1445 ost_init_sec_none(reply, exp);
1449 /* no GSS support case */
1450 if (!req->rq_auth_gss) {
1451 if (filter->fo_sec_level > LUSTRE_SEC_NONE) {
1452 CWARN("client %s -> target %s does not user GSS, "
1453 "can not run under security level %d.\n",
1454 client, obd->obd_name, filter->fo_sec_level);
1457 ost_init_sec_none(reply, exp);
1462 /* old version case */
1463 if (unlikely(!(data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) ||
1464 !(data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA))) {
1465 if (filter->fo_sec_level > LUSTRE_SEC_NONE) {
1466 CWARN("client %s -> target %s uses old version, "
1467 "can not run under security level %d.\n",
1468 client, obd->obd_name, filter->fo_sec_level);
1471 CWARN("client %s -> target %s uses old version, "
1472 "run under security level %d.\n",
1473 client, obd->obd_name, filter->fo_sec_level);
1474 ost_init_sec_none(reply, exp);
1479 remote = data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT_FORCE;
1481 if (!req->rq_auth_remote)
1482 CDEBUG(D_SEC, "client (local realm) %s -> target %s "
1483 "asked to be remote.\n", client, obd->obd_name);
1484 } else if (req->rq_auth_remote) {
1486 CDEBUG(D_SEC, "client (remote realm) %s -> target %s is set "
1487 "as remote by default.\n", client, obd->obd_name);
1491 if (!filter->fo_fl_oss_capa) {
1492 CDEBUG(D_SEC, "client %s -> target %s is set as remote,"
1493 " but OSS capabilities are not enabled: %d.\n",
1494 client, obd->obd_name, filter->fo_fl_oss_capa);
1499 switch (filter->fo_sec_level) {
1500 case LUSTRE_SEC_NONE:
1502 ost_init_sec_none(reply, exp);
1505 CDEBUG(D_SEC, "client %s -> target %s is set as remote, "
1506 "can not run under security level %d.\n",
1507 client, obd->obd_name, filter->fo_sec_level);
1510 case LUSTRE_SEC_REMOTE:
1512 ost_init_sec_none(reply, exp);
1514 case LUSTRE_SEC_ALL:
1516 reply->ocd_connect_flags &= ~(OBD_CONNECT_RMT_CLIENT |
1517 OBD_CONNECT_RMT_CLIENT_FORCE);
1518 if (!filter->fo_fl_oss_capa)
1519 reply->ocd_connect_flags &= ~OBD_CONNECT_OSS_CAPA;
1521 cfs_spin_lock(&exp->exp_lock);
1522 exp->exp_connect_flags = reply->ocd_connect_flags;
1523 cfs_spin_unlock(&exp->exp_lock);
1535 * this should be done in filter_connect()/filter_reconnect(), but
1536 * we can't obtain information like NID, which stored in incoming
1537 * request, thus can't decide what flavor to use. so we do it here.
1539 * This hack should be removed after the OST stack be rewritten, just
1540 * like what we are doing in mdt_obd_connect()/mdt_obd_reconnect().
1542 static int ost_connect_check_sptlrpc(struct ptlrpc_request *req)
1544 struct obd_export *exp = req->rq_export;
1545 struct filter_obd *filter = &exp->exp_obd->u.filter;
1546 struct sptlrpc_flavor flvr;
1549 if (unlikely(strcmp(exp->exp_obd->obd_type->typ_name,
1550 LUSTRE_ECHO_NAME) == 0)) {
1551 exp->exp_flvr.sf_rpc = SPTLRPC_FLVR_ANY;
1555 if (exp->exp_flvr.sf_rpc == SPTLRPC_FLVR_INVALID) {
1556 cfs_read_lock(&filter->fo_sptlrpc_lock);
1557 sptlrpc_target_choose_flavor(&filter->fo_sptlrpc_rset,
1561 cfs_read_unlock(&filter->fo_sptlrpc_lock);
1563 cfs_spin_lock(&exp->exp_lock);
1565 exp->exp_sp_peer = req->rq_sp_from;
1566 exp->exp_flvr = flvr;
1568 if (exp->exp_flvr.sf_rpc != SPTLRPC_FLVR_ANY &&
1569 exp->exp_flvr.sf_rpc != req->rq_flvr.sf_rpc) {
1570 CERROR("unauthorized rpc flavor %x from %s, "
1571 "expect %x\n", req->rq_flvr.sf_rpc,
1572 libcfs_nid2str(req->rq_peer.nid),
1573 exp->exp_flvr.sf_rpc);
1577 cfs_spin_unlock(&exp->exp_lock);
1579 if (exp->exp_sp_peer != req->rq_sp_from) {
1580 CERROR("RPC source %s doesn't match %s\n",
1581 sptlrpc_part2name(req->rq_sp_from),
1582 sptlrpc_part2name(exp->exp_sp_peer));
1585 rc = sptlrpc_target_export_check(exp, req);
1592 static int ost_filter_recovery_request(struct ptlrpc_request *req,
1593 struct obd_device *obd, int *process)
1595 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
1596 case OST_CONNECT: /* This will never get here, but for completeness. */
1597 case OST_DISCONNECT:
1608 case OBD_LOG_CANCEL:
1610 *process = target_queue_recovery_request(req, obd);
1614 DEBUG_REQ(D_ERROR, req, "not permitted during recovery");
1620 int ost_msg_check_version(struct lustre_msg *msg)
1624 switch(lustre_msg_get_opc(msg)) {
1626 case OST_DISCONNECT:
1629 case SEC_CTX_INIT_CONT:
1631 rc = lustre_msg_check_version(msg, LUSTRE_OBD_VERSION);
1633 CERROR("bad opc %u version %08x, expecting %08x\n",
1634 lustre_msg_get_opc(msg),
1635 lustre_msg_get_version(msg),
1636 LUSTRE_OBD_VERSION);
1649 #ifdef HAVE_QUOTA_SUPPORT
1650 case OST_QUOTACHECK:
1652 case OST_QUOTA_ADJUST_QUNIT:
1654 rc = lustre_msg_check_version(msg, LUSTRE_OST_VERSION);
1656 CERROR("bad opc %u version %08x, expecting %08x\n",
1657 lustre_msg_get_opc(msg),
1658 lustre_msg_get_version(msg),
1659 LUSTRE_OST_VERSION);
1664 case LDLM_BL_CALLBACK:
1665 case LDLM_CP_CALLBACK:
1666 rc = lustre_msg_check_version(msg, LUSTRE_DLM_VERSION);
1668 CERROR("bad opc %u version %08x, expecting %08x\n",
1669 lustre_msg_get_opc(msg),
1670 lustre_msg_get_version(msg),
1671 LUSTRE_DLM_VERSION);
1673 case LLOG_ORIGIN_CONNECT:
1674 case OBD_LOG_CANCEL:
1675 rc = lustre_msg_check_version(msg, LUSTRE_LOG_VERSION);
1677 CERROR("bad opc %u version %08x, expecting %08x\n",
1678 lustre_msg_get_opc(msg),
1679 lustre_msg_get_version(msg),
1680 LUSTRE_LOG_VERSION);
1683 CERROR("Unexpected opcode %d\n", lustre_msg_get_opc(msg));
1690 * Returns 1 if the given PTLRPC matches the given LDLM locks, or 0 if it does
1693 static int ost_rw_hpreq_lock_match(struct ptlrpc_request *req,
1694 struct ldlm_lock *lock)
1696 struct niobuf_remote *nb;
1697 struct obd_ioobj *ioo;
1698 struct ost_body *body;
1699 int objcount, niocount;
1704 opc = lustre_msg_get_opc(req->rq_reqmsg);
1705 LASSERT(opc == OST_READ || opc == OST_WRITE);
1707 /* As the request may be covered by several locks, do not look at
1708 * o_handle, look at the RPC IO region. */
1709 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
1713 objcount = req_capsule_get_size(&req->rq_pill, &RMF_OBD_IOOBJ,
1714 RCL_CLIENT) / sizeof(*ioo);
1715 ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
1719 for (niocount = i = 0; i < objcount; i++)
1720 niocount += ioo[i].ioo_bufcnt;
1722 nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
1724 niocount != (req_capsule_get_size(&req->rq_pill, &RMF_NIOBUF_REMOTE,
1725 RCL_CLIENT) / sizeof(*nb)))
1729 if (opc == OST_READ)
1732 start = nb[0].offset & CFS_PAGE_MASK;
1733 end = (nb[ioo->ioo_bufcnt - 1].offset +
1734 nb[ioo->ioo_bufcnt - 1].len - 1) | ~CFS_PAGE_MASK;
1736 LASSERT(lock->l_resource != NULL);
1737 if (!osc_res_name_eq(ioo->ioo_id, ioo->ioo_gr,
1738 &lock->l_resource->lr_name))
1741 if (!(lock->l_granted_mode & mode))
1744 if (lock->l_policy_data.l_extent.end < start ||
1745 lock->l_policy_data.l_extent.start > end)
1752 * High-priority queue request check for whether the given PTLRPC request (\a
1753 * req) is blocking an LDLM lock cancel.
1755 * Returns 1 if the given given PTLRPC request (\a req) is blocking an LDLM lock
1756 * cancel, 0 if it is not, and -EFAULT if the request is malformed.
1758 * Only OST_READs, OST_WRITEs and OST_PUNCHes go on the h-p RPC queue. This
1759 * function looks only at OST_READs and OST_WRITEs.
1761 static int ost_rw_hpreq_check(struct ptlrpc_request *req)
1763 struct niobuf_remote *nb;
1764 struct obd_ioobj *ioo;
1765 struct ost_body *body;
1766 int objcount, niocount;
1770 opc = lustre_msg_get_opc(req->rq_reqmsg);
1771 LASSERT(opc == OST_READ || opc == OST_WRITE);
1773 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
1777 objcount = req_capsule_get_size(&req->rq_pill, &RMF_OBD_IOOBJ,
1778 RCL_CLIENT) / sizeof(*ioo);
1779 ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
1783 for (niocount = i = 0; i < objcount; i++)
1784 niocount += ioo[i].ioo_bufcnt;
1785 nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
1787 niocount != (req_capsule_get_size(&req->rq_pill, &RMF_NIOBUF_REMOTE,
1788 RCL_CLIENT) / sizeof(*nb)))
1790 if (niocount != 0 && (nb[0].flags & OBD_BRW_SRVLOCK))
1794 if (opc == OST_READ)
1796 RETURN(ost_rw_prolong_locks(req, ioo, nb, &body->oa, mode));
1799 static int ost_punch_prolong_locks(struct ptlrpc_request *req, struct obdo *oa)
1801 struct ldlm_res_id res_id = { .name = { oa->o_id } };
1802 struct ost_prolong_data opd = { 0 };
1807 end = start + oa->o_blocks;
1809 opd.opd_mode = LCK_PW;
1810 opd.opd_exp = req->rq_export;
1811 opd.opd_policy.l_extent.start = start & CFS_PAGE_MASK;
1812 if (oa->o_blocks == OBD_OBJECT_EOF || end < start)
1813 opd.opd_policy.l_extent.end = OBD_OBJECT_EOF;
1815 opd.opd_policy.l_extent.end = end | ~CFS_PAGE_MASK;
1817 /* prolong locks for the current service time of the corresponding
1818 * portal (= OST_IO_PORTAL) */
1819 opd.opd_timeout = AT_OFF ? obd_timeout / 2:
1820 max(at_est2timeout(at_get(&req->rq_rqbd->
1821 rqbd_service->srv_at_estimate)), ldlm_timeout);
1823 CDEBUG(D_DLMTRACE,"refresh locks: "LPU64"/"LPU64" ("LPU64"->"LPU64")\n",
1824 res_id.name[0], res_id.name[1], opd.opd_policy.l_extent.start,
1825 opd.opd_policy.l_extent.end);
1828 ldlm_resource_iterate(req->rq_export->exp_obd->obd_namespace, &res_id,
1829 ost_prolong_locks_iter, &opd);
1830 RETURN(opd.opd_lock_match);
1834 * Like ost_rw_hpreq_lock_match(), but for OST_PUNCH RPCs.
1836 static int ost_punch_hpreq_lock_match(struct ptlrpc_request *req,
1837 struct ldlm_lock *lock)
1839 struct ost_body *body;
1842 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
1844 RETURN(0); /* can't return -EFAULT here */
1846 if (body->oa.o_valid & OBD_MD_FLHANDLE &&
1847 body->oa.o_handle.cookie == lock->l_handle.h_cookie)
1853 * Like ost_rw_hpreq_check(), but for OST_PUNCH RPCs.
1855 static int ost_punch_hpreq_check(struct ptlrpc_request *req)
1857 struct ost_body *body;
1859 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
1863 LASSERT(!(body->oa.o_valid & OBD_MD_FLFLAGS) ||
1864 !(body->oa.o_flags & OBD_FL_SRVLOCK));
1866 RETURN(ost_punch_prolong_locks(req, &body->oa));
1869 struct ptlrpc_hpreq_ops ost_hpreq_rw = {
1870 .hpreq_lock_match = ost_rw_hpreq_lock_match,
1871 .hpreq_check = ost_rw_hpreq_check,
1874 struct ptlrpc_hpreq_ops ost_hpreq_punch = {
1875 .hpreq_lock_match = ost_punch_hpreq_lock_match,
1876 .hpreq_check = ost_punch_hpreq_check,
1879 /** Assign high priority operations to the request if needed. */
1880 static int ost_hpreq_handler(struct ptlrpc_request *req)
1883 if (req->rq_export) {
1884 int opc = lustre_msg_get_opc(req->rq_reqmsg);
1885 struct ost_body *body;
1887 if (opc == OST_READ || opc == OST_WRITE) {
1888 struct niobuf_remote *nb;
1889 struct obd_ioobj *ioo;
1890 int objcount, niocount;
1893 /* RPCs on the H-P queue can be inspected before
1894 * ost_handler() initializes their pills, so we
1895 * initialize that here. Capsule initialization is
1896 * idempotent, as is setting the pill's format (provided
1897 * it doesn't change).
1899 req_capsule_init(&req->rq_pill, req, RCL_SERVER);
1900 if (opc == OST_READ)
1901 req_capsule_set(&req->rq_pill,
1904 req_capsule_set(&req->rq_pill,
1905 &RQF_OST_BRW_WRITE);
1907 body = req_capsule_client_get(&req->rq_pill,
1910 CERROR("Missing/short ost_body\n");
1913 objcount = req_capsule_get_size(&req->rq_pill,
1917 if (objcount == 0) {
1918 CERROR("Missing/short ioobj\n");
1922 CERROR("too many ioobjs (%d)\n", objcount);
1926 ioo = req_capsule_client_get(&req->rq_pill,
1929 CERROR("Missing/short ioobj\n");
1933 for (niocount = i = 0; i < objcount; i++) {
1934 if (ioo[i].ioo_bufcnt == 0) {
1935 CERROR("ioo[%d] has zero bufcnt\n", i);
1938 niocount += ioo[i].ioo_bufcnt;
1940 if (niocount > PTLRPC_MAX_BRW_PAGES) {
1941 DEBUG_REQ(D_RPCTRACE, req,
1942 "bulk has too many pages (%d)",
1947 nb = req_capsule_client_get(&req->rq_pill,
1948 &RMF_NIOBUF_REMOTE);
1950 CERROR("Missing/short niobuf\n");
1954 if (niocount == 0 || !(nb[0].flags & OBD_BRW_SRVLOCK))
1955 req->rq_ops = &ost_hpreq_rw;
1956 } else if (opc == OST_PUNCH) {
1957 req_capsule_init(&req->rq_pill, req, RCL_SERVER);
1958 req_capsule_set(&req->rq_pill, &RQF_OST_PUNCH);
1960 body = req_capsule_client_get(&req->rq_pill,
1963 CERROR("Missing/short ost_body\n");
1967 if (!(body->oa.o_valid & OBD_MD_FLFLAGS) ||
1968 !(body->oa.o_flags & OBD_FL_SRVLOCK))
1969 req->rq_ops = &ost_hpreq_punch;
1975 /* TODO: handle requests in a similar way as MDT: see mdt_handle_common() */
1976 int ost_handle(struct ptlrpc_request *req)
1978 struct obd_trans_info trans_info = { 0, };
1979 struct obd_trans_info *oti = &trans_info;
1980 int should_process, fail = OBD_FAIL_OST_ALL_REPLY_NET, rc = 0;
1981 struct obd_device *obd = NULL;
1984 LASSERT(current->journal_info == NULL);
1986 /* primordial rpcs don't affect server recovery */
1987 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
1989 case SEC_CTX_INIT_CONT:
1994 req_capsule_init(&req->rq_pill, req, RCL_SERVER);
1996 if (lustre_msg_get_opc(req->rq_reqmsg) != OST_CONNECT) {
1999 if (!class_connected_export(req->rq_export)) {
2000 CDEBUG(D_HA,"operation %d on unconnected OST from %s\n",
2001 lustre_msg_get_opc(req->rq_reqmsg),
2002 libcfs_id2str(req->rq_peer));
2003 req->rq_status = -ENOTCONN;
2004 GOTO(out, rc = -ENOTCONN);
2007 obd = req->rq_export->exp_obd;
2009 /* Check for aborted recovery. */
2010 cfs_spin_lock_bh(&obd->obd_processing_task_lock);
2011 recovering = obd->obd_recovering;
2012 cfs_spin_unlock_bh(&obd->obd_processing_task_lock);
2014 rc = ost_filter_recovery_request(req, obd,
2016 if (rc || !should_process)
2018 else if (should_process < 0) {
2019 req->rq_status = should_process;
2020 rc = ptlrpc_error(req);
2028 rc = ost_msg_check_version(req->rq_reqmsg);
2032 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
2034 CDEBUG(D_INODE, "connect\n");
2035 req_capsule_set(&req->rq_pill, &RQF_OST_CONNECT);
2036 if (OBD_FAIL_CHECK(OBD_FAIL_OST_CONNECT_NET))
2038 rc = target_handle_connect(req);
2039 if (OBD_FAIL_CHECK(OBD_FAIL_OST_CONNECT_NET2))
2042 rc = ost_init_sec_level(req);
2044 rc = ost_connect_check_sptlrpc(req);
2048 case OST_DISCONNECT:
2049 CDEBUG(D_INODE, "disconnect\n");
2050 req_capsule_set(&req->rq_pill, &RQF_OST_DISCONNECT);
2051 if (OBD_FAIL_CHECK(OBD_FAIL_OST_DISCONNECT_NET))
2053 rc = target_handle_disconnect(req);
2056 CDEBUG(D_INODE, "create\n");
2057 req_capsule_set(&req->rq_pill, &RQF_OST_CREATE);
2058 if (OBD_FAIL_CHECK(OBD_FAIL_OST_CREATE_NET))
2060 if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
2061 GOTO(out, rc = -EROFS);
2062 rc = ost_create(req->rq_export, req, oti);
2065 CDEBUG(D_INODE, "destroy\n");
2066 req_capsule_set(&req->rq_pill, &RQF_OST_DESTROY);
2067 if (OBD_FAIL_CHECK(OBD_FAIL_OST_DESTROY_NET))
2069 if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
2070 GOTO(out, rc = -EROFS);
2071 rc = ost_destroy(req->rq_export, req, oti);
2074 CDEBUG(D_INODE, "getattr\n");
2075 req_capsule_set(&req->rq_pill, &RQF_OST_GETATTR);
2076 if (OBD_FAIL_CHECK(OBD_FAIL_OST_GETATTR_NET))
2078 rc = ost_getattr(req->rq_export, req);
2081 CDEBUG(D_INODE, "setattr\n");
2082 req_capsule_set(&req->rq_pill, &RQF_OST_SETATTR);
2083 if (OBD_FAIL_CHECK(OBD_FAIL_OST_SETATTR_NET))
2085 rc = ost_setattr(req->rq_export, req, oti);
2088 req_capsule_set(&req->rq_pill, &RQF_OST_BRW_WRITE);
2089 CDEBUG(D_INODE, "write\n");
2090 /* req->rq_request_portal would be nice, if it was set */
2091 if (req->rq_rqbd->rqbd_service->srv_req_portal !=OST_IO_PORTAL){
2092 CERROR("%s: deny write request from %s to portal %u\n",
2093 req->rq_export->exp_obd->obd_name,
2094 obd_export_nid2str(req->rq_export),
2095 req->rq_rqbd->rqbd_service->srv_req_portal);
2096 GOTO(out, rc = -EPROTO);
2098 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_NET))
2100 if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOSPC))
2101 GOTO(out, rc = -ENOSPC);
2102 if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
2103 GOTO(out, rc = -EROFS);
2104 rc = ost_brw_write(req, oti);
2105 LASSERT(current->journal_info == NULL);
2106 /* ost_brw_write sends its own replies */
2109 req_capsule_set(&req->rq_pill, &RQF_OST_BRW_READ);
2110 CDEBUG(D_INODE, "read\n");
2111 /* req->rq_request_portal would be nice, if it was set */
2112 if (req->rq_rqbd->rqbd_service->srv_req_portal !=OST_IO_PORTAL){
2113 CERROR("%s: deny read request from %s to portal %u\n",
2114 req->rq_export->exp_obd->obd_name,
2115 obd_export_nid2str(req->rq_export),
2116 req->rq_rqbd->rqbd_service->srv_req_portal);
2117 GOTO(out, rc = -EPROTO);
2119 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_NET))
2121 rc = ost_brw_read(req, oti);
2122 LASSERT(current->journal_info == NULL);
2123 /* ost_brw_read sends its own replies */
2126 CDEBUG(D_INODE, "punch\n");
2127 req_capsule_set(&req->rq_pill, &RQF_OST_PUNCH);
2128 if (OBD_FAIL_CHECK(OBD_FAIL_OST_PUNCH_NET))
2130 if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
2131 GOTO(out, rc = -EROFS);
2132 rc = ost_punch(req->rq_export, req, oti);
2135 CDEBUG(D_INODE, "statfs\n");
2136 req_capsule_set(&req->rq_pill, &RQF_OST_STATFS);
2137 if (OBD_FAIL_CHECK(OBD_FAIL_OST_STATFS_NET))
2139 rc = ost_statfs(req);
2142 CDEBUG(D_INODE, "sync\n");
2143 req_capsule_set(&req->rq_pill, &RQF_OST_SYNC);
2144 if (OBD_FAIL_CHECK(OBD_FAIL_OST_SYNC_NET))
2146 rc = ost_sync(req->rq_export, req);
2149 DEBUG_REQ(D_INODE, req, "set_info");
2150 req_capsule_set(&req->rq_pill, &RQF_OBD_SET_INFO);
2151 rc = ost_set_info(req->rq_export, req);
2154 DEBUG_REQ(D_INODE, req, "get_info");
2155 req_capsule_set(&req->rq_pill, &RQF_OST_GET_INFO_GENERIC);
2156 rc = ost_get_info(req->rq_export, req);
2158 #ifdef HAVE_QUOTA_SUPPORT
2159 case OST_QUOTACHECK:
2160 CDEBUG(D_INODE, "quotacheck\n");
2161 req_capsule_set(&req->rq_pill, &RQF_OST_QUOTACHECK);
2162 if (OBD_FAIL_CHECK(OBD_FAIL_OST_QUOTACHECK_NET))
2164 rc = ost_handle_quotacheck(req);
2167 CDEBUG(D_INODE, "quotactl\n");
2168 req_capsule_set(&req->rq_pill, &RQF_OST_QUOTACTL);
2169 if (OBD_FAIL_CHECK(OBD_FAIL_OST_QUOTACTL_NET))
2171 rc = ost_handle_quotactl(req);
2173 case OST_QUOTA_ADJUST_QUNIT:
2174 CDEBUG(D_INODE, "quota_adjust_qunit\n");
2175 req_capsule_set(&req->rq_pill, &RQF_OST_QUOTA_ADJUST_QUNIT);
2176 rc = ost_handle_quota_adjust_qunit(req);
2180 DEBUG_REQ(D_INODE, req, "ping");
2181 req_capsule_set(&req->rq_pill, &RQF_OBD_PING);
2182 rc = target_handle_ping(req);
2184 /* FIXME - just reply status */
2185 case LLOG_ORIGIN_CONNECT:
2186 DEBUG_REQ(D_INODE, req, "log connect");
2187 req_capsule_set(&req->rq_pill, &RQF_LLOG_ORIGIN_CONNECT);
2188 rc = ost_llog_handle_connect(req->rq_export, req);
2189 req->rq_status = rc;
2190 rc = req_capsule_server_pack(&req->rq_pill);
2193 RETURN(ptlrpc_reply(req));
2194 case OBD_LOG_CANCEL:
2195 CDEBUG(D_INODE, "log cancel\n");
2196 req_capsule_set(&req->rq_pill, &RQF_LOG_CANCEL);
2197 if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LOG_CANCEL_NET))
2199 rc = llog_origin_handle_cancel(req);
2200 if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LOG_CANCEL_REP))
2202 req->rq_status = rc;
2203 rc = req_capsule_server_pack(&req->rq_pill);
2206 RETURN(ptlrpc_reply(req));
2208 CDEBUG(D_INODE, "enqueue\n");
2209 req_capsule_set(&req->rq_pill, &RQF_LDLM_ENQUEUE);
2210 if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_ENQUEUE))
2212 rc = ldlm_handle_enqueue(req, ldlm_server_completion_ast,
2213 ldlm_server_blocking_ast,
2214 ldlm_server_glimpse_ast);
2215 fail = OBD_FAIL_OST_LDLM_REPLY_NET;
2218 CDEBUG(D_INODE, "convert\n");
2219 req_capsule_set(&req->rq_pill, &RQF_LDLM_CONVERT);
2220 if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CONVERT))
2222 rc = ldlm_handle_convert(req);
2225 CDEBUG(D_INODE, "cancel\n");
2226 req_capsule_set(&req->rq_pill, &RQF_LDLM_CANCEL);
2227 if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CANCEL))
2229 rc = ldlm_handle_cancel(req);
2231 case LDLM_BL_CALLBACK:
2232 case LDLM_CP_CALLBACK:
2233 CDEBUG(D_INODE, "callback\n");
2234 CERROR("callbacks should not happen on OST\n");
2237 CERROR("Unexpected opcode %d\n",
2238 lustre_msg_get_opc(req->rq_reqmsg));
2239 req->rq_status = -ENOTSUPP;
2240 rc = ptlrpc_error(req);
2244 LASSERT(current->journal_info == NULL);
2247 /* If we're DISCONNECTing, the export_data is already freed */
2248 if (!rc && lustre_msg_get_opc(req->rq_reqmsg) != OST_DISCONNECT)
2249 target_committed_to_req(req);
2253 oti_to_request(oti, req);
2255 target_send_reply(req, rc, fail);
2258 EXPORT_SYMBOL(ost_handle);
2260 * free per-thread pool created by ost_thread_init().
2262 static void ost_thread_done(struct ptlrpc_thread *thread)
2264 struct ost_thread_local_cache *tls; /* TLS stands for Thread-Local
2269 LASSERT(thread != NULL);
2272 * be prepared to handle partially-initialized pools (because this is
2273 * called from ost_thread_init() for cleanup.
2275 tls = thread->t_data;
2278 thread->t_data = NULL;
2284 * initialize per-thread page pool (bug 5137).
2286 static int ost_thread_init(struct ptlrpc_thread *thread)
2288 struct ost_thread_local_cache *tls;
2292 LASSERT(thread != NULL);
2293 LASSERT(thread->t_data == NULL);
2294 LASSERTF(thread->t_id <= OSS_THREADS_MAX, "%u\n", thread->t_id);
2299 thread->t_data = tls;
2303 #define OST_WATCHDOG_TIMEOUT (obd_timeout * 1000)
2305 /* Sigh - really, this is an OSS, the _server_, not the _target_ */
2306 static int ost_setup(struct obd_device *obd, struct lustre_cfg* lcfg)
2308 struct ost_obd *ost = &obd->u.ost;
2309 struct lprocfs_static_vars lvars;
2310 int oss_min_threads;
2311 int oss_max_threads;
2312 int oss_min_create_threads;
2313 int oss_max_create_threads;
2317 rc = cfs_cleanup_group_info();
2321 lprocfs_ost_init_vars(&lvars);
2322 lprocfs_obd_setup(obd, lvars.obd_vars);
2324 cfs_sema_init(&ost->ost_health_sem, 1);
2326 if (oss_num_threads) {
2327 /* If oss_num_threads is set, it is the min and the max. */
2328 if (oss_num_threads > OSS_THREADS_MAX)
2329 oss_num_threads = OSS_THREADS_MAX;
2330 if (oss_num_threads < OSS_THREADS_MIN)
2331 oss_num_threads = OSS_THREADS_MIN;
2332 oss_max_threads = oss_min_threads = oss_num_threads;
2334 /* Base min threads on memory and cpus */
2336 cfs_num_possible_cpus() * CFS_NUM_CACHEPAGES >>
2337 (27 - CFS_PAGE_SHIFT);
2338 if (oss_min_threads < OSS_THREADS_MIN)
2339 oss_min_threads = OSS_THREADS_MIN;
2340 /* Insure a 4x range for dynamic threads */
2341 if (oss_min_threads > OSS_THREADS_MAX / 4)
2342 oss_min_threads = OSS_THREADS_MAX / 4;
2343 oss_max_threads = min(OSS_THREADS_MAX, oss_min_threads * 4 + 1);
2347 ptlrpc_init_svc(OST_NBUFS, OST_BUFSIZE, OST_MAXREQSIZE,
2348 OST_MAXREPSIZE, OST_REQUEST_PORTAL,
2349 OSC_REPLY_PORTAL, OSS_SERVICE_WATCHDOG_FACTOR,
2350 ost_handle, LUSTRE_OSS_NAME,
2351 obd->obd_proc_entry, target_print_req,
2352 oss_min_threads, oss_max_threads,
2353 "ll_ost", LCT_DT_THREAD, NULL);
2354 if (ost->ost_service == NULL) {
2355 CERROR("failed to start service\n");
2356 GOTO(out_lprocfs, rc = -ENOMEM);
2359 rc = ptlrpc_start_threads(obd, ost->ost_service);
2361 GOTO(out_service, rc = -EINVAL);
2363 if (oss_num_create_threads) {
2364 if (oss_num_create_threads > OSS_MAX_CREATE_THREADS)
2365 oss_num_create_threads = OSS_MAX_CREATE_THREADS;
2366 if (oss_num_create_threads < OSS_MIN_CREATE_THREADS)
2367 oss_num_create_threads = OSS_MIN_CREATE_THREADS;
2368 oss_min_create_threads = oss_max_create_threads =
2369 oss_num_create_threads;
2371 oss_min_create_threads = OSS_MIN_CREATE_THREADS;
2372 oss_max_create_threads = OSS_MAX_CREATE_THREADS;
2375 ost->ost_create_service =
2376 ptlrpc_init_svc(OST_NBUFS, OST_BUFSIZE, OST_MAXREQSIZE,
2377 OST_MAXREPSIZE, OST_CREATE_PORTAL,
2378 OSC_REPLY_PORTAL, OSS_SERVICE_WATCHDOG_FACTOR,
2379 ost_handle, "ost_create",
2380 obd->obd_proc_entry, target_print_req,
2381 oss_min_create_threads, oss_max_create_threads,
2382 "ll_ost_creat", LCT_DT_THREAD, NULL);
2383 if (ost->ost_create_service == NULL) {
2384 CERROR("failed to start OST create service\n");
2385 GOTO(out_service, rc = -ENOMEM);
2388 rc = ptlrpc_start_threads(obd, ost->ost_create_service);
2390 GOTO(out_create, rc = -EINVAL);
2392 ost->ost_io_service =
2393 ptlrpc_init_svc(OST_NBUFS, OST_BUFSIZE, OST_MAXREQSIZE,
2394 OST_MAXREPSIZE, OST_IO_PORTAL,
2395 OSC_REPLY_PORTAL, OSS_SERVICE_WATCHDOG_FACTOR,
2396 ost_handle, "ost_io",
2397 obd->obd_proc_entry, target_print_req,
2398 oss_min_threads, oss_max_threads,
2399 "ll_ost_io", LCT_DT_THREAD, ost_hpreq_handler);
2400 if (ost->ost_io_service == NULL) {
2401 CERROR("failed to start OST I/O service\n");
2402 GOTO(out_create, rc = -ENOMEM);
2405 ost->ost_io_service->srv_init = ost_thread_init;
2406 ost->ost_io_service->srv_done = ost_thread_done;
2407 ost->ost_io_service->srv_cpu_affinity = 1;
2408 rc = ptlrpc_start_threads(obd, ost->ost_io_service);
2410 GOTO(out_io, rc = -EINVAL);
2412 ping_evictor_start();
2417 ptlrpc_unregister_service(ost->ost_io_service);
2418 ost->ost_io_service = NULL;
2420 ptlrpc_unregister_service(ost->ost_create_service);
2421 ost->ost_create_service = NULL;
2423 ptlrpc_unregister_service(ost->ost_service);
2424 ost->ost_service = NULL;
2426 lprocfs_obd_cleanup(obd);
2430 static int ost_cleanup(struct obd_device *obd)
2432 struct ost_obd *ost = &obd->u.ost;
2436 ping_evictor_stop();
2438 cfs_spin_lock_bh(&obd->obd_processing_task_lock);
2439 if (obd->obd_recovering) {
2440 target_cancel_recovery_timer(obd);
2441 obd->obd_recovering = 0;
2443 cfs_spin_unlock_bh(&obd->obd_processing_task_lock);
2445 cfs_down(&ost->ost_health_sem);
2446 ptlrpc_unregister_service(ost->ost_service);
2447 ptlrpc_unregister_service(ost->ost_create_service);
2448 ptlrpc_unregister_service(ost->ost_io_service);
2449 ost->ost_service = NULL;
2450 ost->ost_create_service = NULL;
2451 cfs_up(&ost->ost_health_sem);
2453 lprocfs_obd_cleanup(obd);
2458 static int ost_health_check(struct obd_device *obd)
2460 struct ost_obd *ost = &obd->u.ost;
2463 cfs_down(&ost->ost_health_sem);
2464 rc |= ptlrpc_service_health_check(ost->ost_service);
2465 rc |= ptlrpc_service_health_check(ost->ost_create_service);
2466 rc |= ptlrpc_service_health_check(ost->ost_io_service);
2467 cfs_up(&ost->ost_health_sem);
2470 * health_check to return 0 on healthy
2471 * and 1 on unhealthy.
2479 struct ost_thread_local_cache *ost_tls(struct ptlrpc_request *r)
2481 return (struct ost_thread_local_cache *)(r->rq_svc_thread->t_data);
2484 /* use obd ops to offer management infrastructure */
2485 static struct obd_ops ost_obd_ops = {
2486 .o_owner = THIS_MODULE,
2487 .o_setup = ost_setup,
2488 .o_cleanup = ost_cleanup,
2489 .o_health_check = ost_health_check,
2493 static int __init ost_init(void)
2495 struct lprocfs_static_vars lvars;
2499 lprocfs_ost_init_vars(&lvars);
2500 rc = class_register_type(&ost_obd_ops, NULL, lvars.module_vars,
2501 LUSTRE_OSS_NAME, NULL);
2503 if (ost_num_threads != 0 && oss_num_threads == 0) {
2504 LCONSOLE_INFO("ost_num_threads module parameter is deprecated, "
2505 "use oss_num_threads instead or unset both for "
2506 "dynamic thread startup\n");
2507 oss_num_threads = ost_num_threads;
2513 static void /*__exit*/ ost_exit(void)
2515 class_unregister_type(LUSTRE_OSS_NAME);
2518 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
2519 MODULE_DESCRIPTION("Lustre Object Storage Target (OST) v0.01");
2520 MODULE_LICENSE("GPL");
2522 module_init(ost_init);
2523 module_exit(ost_exit);