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() - 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(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 !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 req_capsule_set_size(&req->rq_pill, &RMF_RCS, RCL_SERVER, 0);
685 rc = req_capsule_server_pack(&req->rq_pill);
690 * Per-thread array of struct niobuf_{local,remote}'s was allocated by
693 local_nb = ost_tls(req)->local;
695 rc = ost_brw_lock_get(LCK_PR, exp, ioo, remote_nb, &lockh);
700 * If getting the lock took more time than
701 * client was willing to wait, drop it. b=11330
703 if (cfs_time_current_sec() > req->rq_deadline ||
704 OBD_FAIL_CHECK(OBD_FAIL_OST_DROP_REQ)) {
706 CERROR("Dropping timed-out read from %s because locking"
707 "object "LPX64" took %ld seconds (limit was %ld).\n",
708 libcfs_id2str(req->rq_peer), ioo->ioo_id,
709 cfs_time_current_sec() - req->rq_arrival_time.tv_sec,
710 req->rq_deadline - req->rq_arrival_time.tv_sec);
711 GOTO(out_lock, rc = -ETIMEDOUT);
714 npages = OST_THREAD_POOL_SIZE;
715 rc = obd_preprw(OBD_BRW_READ, exp, &body->oa, 1, ioo,
716 remote_nb, &npages, local_nb, oti, capa);
720 desc = ptlrpc_prep_bulk_exp(req, npages,
721 BULK_PUT_SOURCE, OST_BULK_PORTAL);
723 GOTO(out_lock, rc = -ENOMEM);
725 if (!lustre_handle_is_used(&lockh))
726 /* no needs to try to prolong lock if server is asked
727 * to handle locking (= OBD_BRW_SRVLOCK) */
728 ost_rw_prolong_locks(req, ioo, remote_nb, &body->oa,
732 for (i = 0; i < npages; i++) {
733 int page_rc = local_nb[i].rc;
735 if (page_rc < 0) { /* error */
741 if (page_rc != 0) { /* some data! */
742 LASSERT (local_nb[i].page != NULL);
743 ptlrpc_prep_bulk_page(desc, local_nb[i].page,
744 local_nb[i].offset & ~CFS_PAGE_MASK,
748 if (page_rc != local_nb[i].len) { /* short read */
749 /* All subsequent pages should be 0 */
751 LASSERT(local_nb[i].rc == 0);
756 if (body->oa.o_valid & OBD_MD_FLCKSUM) {
757 cksum_type_t cksum_type = OBD_CKSUM_CRC32;
759 if (body->oa.o_valid & OBD_MD_FLFLAGS)
760 cksum_type = cksum_type_unpack(body->oa.o_flags);
761 body->oa.o_flags = cksum_type_pack(cksum_type);
762 body->oa.o_valid = OBD_MD_FLCKSUM | OBD_MD_FLFLAGS;
763 body->oa.o_cksum = ost_checksum_bulk(desc, OST_READ, cksum_type);
764 CDEBUG(D_PAGE,"checksum at read origin: %x\n",body->oa.o_cksum);
766 body->oa.o_valid = 0;
768 /* We're finishing using body->oa as an input variable */
770 /* Check if client was evicted while we were doing i/o before touching
773 /* Check if there is eviction in progress, and if so, wait for
775 if (unlikely(atomic_read(&exp->exp_obd->
776 obd_evict_inprogress))) {
777 lwi = LWI_INTR(NULL, NULL);
778 rc = l_wait_event(exp->exp_obd->
779 obd_evict_inprogress_waitq,
780 !atomic_read(&exp->exp_obd->
781 obd_evict_inprogress),
784 /* Check if client was evicted or tried to reconnect already */
785 if (exp->exp_failed || exp->exp_abort_active_req)
788 rc = sptlrpc_svc_wrap_bulk(req, desc);
790 rc = ptlrpc_start_bulk_transfer(desc);
794 time_t start = cfs_time_current_sec();
796 long timeoutl = req->rq_deadline -
797 cfs_time_current_sec();
798 cfs_duration_t timeout = timeoutl <= 0 ?
799 CFS_TICK : cfs_time_seconds(timeoutl);
800 lwi = LWI_TIMEOUT_INTERVAL(timeout,
804 rc = l_wait_event(desc->bd_waitq,
805 !ptlrpc_server_bulk_active(desc) ||
807 exp->exp_abort_active_req,
809 LASSERT(rc == 0 || rc == -ETIMEDOUT);
810 /* Wait again if we changed deadline */
811 } while ((rc == -ETIMEDOUT) &&
812 (req->rq_deadline > cfs_time_current_sec()));
814 if (rc == -ETIMEDOUT) {
815 DEBUG_REQ(D_ERROR, req,
816 "timeout on bulk PUT after %ld%+lds",
817 req->rq_deadline - start,
818 cfs_time_current_sec() -
820 ptlrpc_abort_bulk(desc);
821 } else if (exp->exp_failed) {
822 DEBUG_REQ(D_ERROR, req, "Eviction on bulk PUT");
824 ptlrpc_abort_bulk(desc);
825 } else if (exp->exp_abort_active_req) {
826 DEBUG_REQ(D_ERROR, req, "Reconnect on bulk PUT");
827 /* we don't reply anyway */
829 ptlrpc_abort_bulk(desc);
830 } else if (!desc->bd_success ||
831 desc->bd_nob_transferred != desc->bd_nob) {
832 DEBUG_REQ(D_ERROR, req, "%s bulk PUT %d(%d)",
834 "truncated" : "network error on",
835 desc->bd_nob_transferred,
837 /* XXX should this be a different errno? */
841 DEBUG_REQ(D_ERROR, req, "bulk PUT failed: rc %d", rc);
846 /* Must commit after prep above in all cases */
847 rc = obd_commitrw(OBD_BRW_READ, exp, &body->oa, 1, ioo,
848 remote_nb, npages, local_nb, oti, rc);
851 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
852 memcpy(&repbody->oa, &body->oa, sizeof(repbody->oa));
853 ost_drop_id(exp, &repbody->oa);
857 ost_brw_lock_put(LCK_PR, ioo, remote_nb, &lockh);
860 ptlrpc_free_bulk(desc);
864 req->rq_status = nob;
865 ptlrpc_lprocfs_brw(req, nob);
866 target_committed_to_req(req);
868 } else if (!no_reply) {
869 /* Only reply if there was no comms problem with bulk */
870 target_committed_to_req(req);
874 /* reply out callback would free */
875 ptlrpc_req_drop_rs(req);
876 CWARN("%s: ignoring bulk IO comm error with %s@%s id %s - "
877 "client will retry\n",
878 exp->exp_obd->obd_name,
879 exp->exp_client_uuid.uuid,
880 exp->exp_connection->c_remote_uuid.uuid,
881 libcfs_id2str(req->rq_peer));
887 static int ost_brw_write(struct ptlrpc_request *req, struct obd_trans_info *oti)
889 struct ptlrpc_bulk_desc *desc = NULL;
890 struct obd_export *exp = req->rq_export;
891 struct niobuf_remote *remote_nb;
892 struct niobuf_local *local_nb;
893 struct obd_ioobj *ioo;
894 struct ost_body *body, *repbody;
895 struct l_wait_info lwi;
896 struct lustre_handle lockh = {0};
897 struct lustre_capa *capa = NULL;
899 int objcount, niocount, npages;
901 obd_count client_cksum = 0, server_cksum = 0;
902 cksum_type_t cksum_type = OBD_CKSUM_CRC32;
904 __u32 o_uid = 0, o_gid = 0;
907 req->rq_bulk_write = 1;
909 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_WRITE_BULK))
910 GOTO(out, rc = -EIO);
911 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_WRITE_BULK2))
912 GOTO(out, rc = -EFAULT);
914 /* pause before transaction has been started */
915 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_BULK, (obd_timeout + 1) / 4);
917 /* Check if there is eviction in progress, and if so, wait for it to
919 if (unlikely(atomic_read(&exp->exp_obd->obd_evict_inprogress))) {
920 lwi = LWI_INTR(NULL, NULL); // We do not care how long it takes
921 rc = l_wait_event(exp->exp_obd->obd_evict_inprogress_waitq,
922 !atomic_read(&exp->exp_obd->obd_evict_inprogress),
926 GOTO(out, rc = -ENOTCONN);
928 /* ost_body, ioobj & noibuf_remote are verified and swabbed in
929 * ost_rw_hpreq_check(). */
930 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
932 GOTO(out, rc = -EFAULT);
934 if ((body->oa.o_flags & OBD_BRW_MEMALLOC) &&
935 (exp->exp_connection->c_peer.nid == exp->exp_connection->c_self))
936 libcfs_memory_pressure_set();
938 objcount = req_capsule_get_size(&req->rq_pill, &RMF_OBD_IOOBJ,
939 RCL_CLIENT) / sizeof(*ioo);
940 ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
942 GOTO(out, rc = -EFAULT);
943 for (niocount = i = 0; i < objcount; i++)
944 niocount += ioo[i].ioo_bufcnt;
947 * It'd be nice to have a capsule function to indicate how many elements
948 * there were in a buffer for an RMF that's declared to be an array.
949 * It's easy enough to compute the number of elements here though.
951 remote_nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
952 if (remote_nb == NULL || niocount != (req_capsule_get_size(&req->rq_pill,
953 &RMF_NIOBUF_REMOTE, RCL_CLIENT) / sizeof(*remote_nb)))
954 GOTO(out, rc = -EFAULT);
956 if (body->oa.o_valid & OBD_MD_FLOSSCAPA) {
957 capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1);
959 CERROR("Missing capability for OST BRW WRITE");
960 GOTO(out, rc = -EFAULT);
964 req_capsule_set_size(&req->rq_pill, &RMF_RCS, RCL_SERVER,
965 niocount * sizeof(*rcs));
966 rc = req_capsule_server_pack(&req->rq_pill);
969 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_PACK, obd_fail_val);
970 rcs = req_capsule_server_get(&req->rq_pill, &RMF_RCS);
973 * Per-thread array of struct niobuf_{local,remote}'s was allocated by
976 local_nb = ost_tls(req)->local;
978 rc = ost_brw_lock_get(LCK_PW, exp, ioo, remote_nb, &lockh);
983 * If getting the lock took more time than
984 * client was willing to wait, drop it. b=11330
986 if (cfs_time_current_sec() > req->rq_deadline ||
987 OBD_FAIL_CHECK(OBD_FAIL_OST_DROP_REQ)) {
989 CERROR("Dropping timed-out write from %s because locking "
990 "object "LPX64" took %ld seconds (limit was %ld).\n",
991 libcfs_id2str(req->rq_peer), ioo->ioo_id,
992 cfs_time_current_sec() - req->rq_arrival_time.tv_sec,
993 req->rq_deadline - req->rq_arrival_time.tv_sec);
994 GOTO(out_lock, rc = -ETIMEDOUT);
997 if (!lustre_handle_is_used(&lockh))
998 /* no needs to try to prolong lock if server is asked
999 * to handle locking (= OBD_BRW_SRVLOCK) */
1000 ost_rw_prolong_locks(req, ioo, remote_nb,&body->oa, LCK_PW);
1002 /* obd_preprw clobbers oa->valid, so save what we need */
1003 if (body->oa.o_valid & OBD_MD_FLCKSUM) {
1004 client_cksum = body->oa.o_cksum;
1005 if (body->oa.o_valid & OBD_MD_FLFLAGS)
1006 cksum_type = cksum_type_unpack(body->oa.o_flags);
1009 /* Because we already sync grant info with client when reconnect,
1010 * grant info will be cleared for resent req, then fed_grant and
1011 * total_grant will not be modified in following preprw_write */
1012 if (lustre_msg_get_flags(req->rq_reqmsg) & (MSG_RESENT | MSG_REPLAY)) {
1013 DEBUG_REQ(D_CACHE, req, "clear resent/replay req grant info");
1014 body->oa.o_valid &= ~OBD_MD_FLGRANT;
1017 if (exp_connect_rmtclient(exp)) {
1018 o_uid = body->oa.o_uid;
1019 o_gid = body->oa.o_gid;
1021 npages = OST_THREAD_POOL_SIZE;
1022 rc = obd_preprw(OBD_BRW_WRITE, exp, &body->oa, objcount,
1023 ioo, remote_nb, &npages, local_nb, oti, capa);
1027 desc = ptlrpc_prep_bulk_exp(req, npages,
1028 BULK_GET_SINK, OST_BULK_PORTAL);
1030 GOTO(out_lock, rc = -ENOMEM);
1032 /* NB Having prepped, we must commit... */
1034 for (i = 0; i < npages; i++)
1035 ptlrpc_prep_bulk_page(desc, local_nb[i].page,
1036 local_nb[i].offset & ~CFS_PAGE_MASK,
1039 rc = sptlrpc_svc_prep_bulk(req, desc);
1043 /* Check if client was evicted or tried to reconnect while we
1044 * were doing i/o before touching network */
1045 if (desc->bd_export->exp_failed ||
1046 desc->bd_export->exp_abort_active_req)
1049 rc = ptlrpc_start_bulk_transfer(desc);
1051 time_t start = cfs_time_current_sec();
1053 long timeoutl = req->rq_deadline -
1054 cfs_time_current_sec();
1055 cfs_duration_t timeout = timeoutl <= 0 ?
1056 CFS_TICK : cfs_time_seconds(timeoutl);
1057 lwi = LWI_TIMEOUT_INTERVAL(timeout, cfs_time_seconds(1),
1058 ost_bulk_timeout, desc);
1059 rc = l_wait_event(desc->bd_waitq,
1060 !ptlrpc_server_bulk_active(desc) ||
1061 desc->bd_export->exp_failed ||
1062 desc->bd_export->exp_abort_active_req,
1064 LASSERT(rc == 0 || rc == -ETIMEDOUT);
1065 /* Wait again if we changed deadline */
1066 } while ((rc == -ETIMEDOUT) &&
1067 (req->rq_deadline > cfs_time_current_sec()));
1069 if (rc == -ETIMEDOUT) {
1070 DEBUG_REQ(D_ERROR, req,
1071 "timeout on bulk GET after %ld%+lds",
1072 req->rq_deadline - start,
1073 cfs_time_current_sec() -
1075 ptlrpc_abort_bulk(desc);
1076 } else if (desc->bd_export->exp_failed) {
1077 DEBUG_REQ(D_ERROR, req, "Eviction on bulk GET");
1079 ptlrpc_abort_bulk(desc);
1080 } else if (desc->bd_export->exp_abort_active_req) {
1081 DEBUG_REQ(D_ERROR, req, "Reconnect on bulk GET");
1082 /* we don't reply anyway */
1084 ptlrpc_abort_bulk(desc);
1085 } else if (!desc->bd_success) {
1086 DEBUG_REQ(D_ERROR, req, "network error on bulk GET");
1087 /* XXX should this be a different errno? */
1090 rc = sptlrpc_svc_unwrap_bulk(req, desc);
1093 DEBUG_REQ(D_ERROR, req, "ptlrpc_bulk_get failed: rc %d", rc);
1097 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
1098 memcpy(&repbody->oa, &body->oa, sizeof(repbody->oa));
1100 if (unlikely(client_cksum != 0 && rc == 0)) {
1101 static int cksum_counter;
1102 repbody->oa.o_valid |= OBD_MD_FLCKSUM | OBD_MD_FLFLAGS;
1103 repbody->oa.o_flags &= ~OBD_FL_CKSUM_ALL;
1104 repbody->oa.o_flags |= cksum_type_pack(cksum_type);
1105 server_cksum = ost_checksum_bulk(desc, OST_WRITE, cksum_type);
1106 repbody->oa.o_cksum = server_cksum;
1108 if (unlikely(client_cksum != server_cksum)) {
1109 CERROR("client csum %x, server csum %x\n",
1110 client_cksum, server_cksum);
1112 } else if ((cksum_counter & (-cksum_counter)) == cksum_counter){
1113 CDEBUG(D_INFO, "Checksum %u from %s OK: %x\n",
1114 cksum_counter, libcfs_id2str(req->rq_peer),
1119 /* Must commit after prep above in all cases */
1120 rc = obd_commitrw(OBD_BRW_WRITE, exp, &repbody->oa, objcount, ioo,
1121 remote_nb, npages, local_nb, oti, rc);
1122 if (rc == -ENOTCONN)
1123 /* quota acquire process has been given up because
1124 * either the client has been evicted or the client
1125 * has timed out the request already */
1128 if (exp_connect_rmtclient(exp)) {
1129 repbody->oa.o_uid = o_uid;
1130 repbody->oa.o_gid = o_gid;
1133 if (unlikely(client_cksum != server_cksum && rc == 0)) {
1134 int new_cksum = ost_checksum_bulk(desc, OST_WRITE, cksum_type);
1139 if (new_cksum == server_cksum)
1140 msg = "changed in transit before arrival at OST";
1141 else if (new_cksum == client_cksum)
1142 msg = "initial checksum before message complete";
1144 msg = "changed in transit AND after initial checksum";
1146 if (req->rq_peer.nid == desc->bd_sender) {
1150 router = libcfs_nid2str(desc->bd_sender);
1153 LCONSOLE_ERROR_MSG(0x168, "%s: BAD WRITE CHECKSUM: %s from "
1154 "%s%s%s inum "LPU64"/"LPU64" object "
1155 LPU64"/"LPU64" extent ["LPU64"-"LPU64"]\n",
1156 exp->exp_obd->obd_name, msg,
1157 libcfs_id2str(req->rq_peer),
1159 body->oa.o_valid & OBD_MD_FLFID ?
1160 body->oa.o_fid : (__u64)0,
1161 body->oa.o_valid & OBD_MD_FLFID ?
1162 body->oa.o_generation :(__u64)0,
1164 body->oa.o_valid & OBD_MD_FLGROUP ?
1165 body->oa.o_gr : (__u64)0,
1167 local_nb[npages-1].offset +
1168 local_nb[npages-1].len - 1 );
1169 CERROR("client csum %x, original server csum %x, "
1170 "server csum now %x\n",
1171 client_cksum, server_cksum, new_cksum);
1177 /* set per-requested niobuf return codes */
1178 for (i = j = 0; i < niocount; i++) {
1179 int len = remote_nb[i].len;
1184 LASSERT(j < npages);
1185 if (local_nb[j].rc < 0)
1186 rcs[i] = local_nb[j].rc;
1187 len -= local_nb[j].len;
1192 LASSERT(j == npages);
1193 ptlrpc_lprocfs_brw(req, nob);
1197 ost_brw_lock_put(LCK_PW, ioo, remote_nb, &lockh);
1200 ptlrpc_free_bulk(desc);
1203 oti_to_request(oti, req);
1204 target_committed_to_req(req);
1205 rc = ptlrpc_reply(req);
1206 } else if (!no_reply) {
1207 /* Only reply if there was no comms problem with bulk */
1208 target_committed_to_req(req);
1209 req->rq_status = rc;
1212 /* reply out callback would free */
1213 ptlrpc_req_drop_rs(req);
1214 CWARN("%s: ignoring bulk IO comm error with %s@%s id %s - "
1215 "client will retry\n",
1216 exp->exp_obd->obd_name,
1217 exp->exp_client_uuid.uuid,
1218 exp->exp_connection->c_remote_uuid.uuid,
1219 libcfs_id2str(req->rq_peer));
1221 libcfs_memory_pressure_clr();
1226 * Implementation of OST_SET_INFO.
1228 * OST_SET_INFO is like ioctl(): heavily overloaded. Specifically, it takes a
1229 * "key" and a value RPC buffers as arguments, with the value's contents
1230 * interpreted according to the key.
1232 * Value types that need swabbing have swabbing done explicitly, either here or
1233 * in functions called from here. This should be corrected: all swabbing should
1234 * be done in the capsule abstraction, as that will then allow us to move
1235 * swabbing exclusively to the client without having to modify server code
1236 * outside the capsule abstraction's implementation itself. To correct this
1237 * will require minor changes to the capsule abstraction; see the comments for
1238 * req_capsule_extend() in layout.c.
1240 static int ost_set_info(struct obd_export *exp, struct ptlrpc_request *req)
1242 struct ost_body *body = NULL, *repbody;
1243 char *key, *val = NULL;
1244 int keylen, vallen, rc = 0;
1245 int is_grant_shrink = 0;
1248 key = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
1250 DEBUG_REQ(D_HA, req, "no set_info key");
1253 keylen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_KEY,
1256 vallen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_VAL,
1259 if ((is_grant_shrink = KEY_IS(KEY_GRANT_SHRINK)))
1260 /* In this case the value is actually an RMF_OST_BODY, so we
1261 * transmutate the type of this PTLRPC */
1262 req_capsule_extend(&req->rq_pill, &RQF_OST_SET_GRANT_INFO);
1264 rc = req_capsule_server_pack(&req->rq_pill);
1269 if (is_grant_shrink) {
1270 body = req_capsule_client_get(&req->rq_pill,
1275 repbody = req_capsule_server_get(&req->rq_pill,
1277 memcpy(repbody, body, sizeof(*body));
1278 val = (char*)repbody;
1280 val = req_capsule_client_get(&req->rq_pill,
1285 if (KEY_IS(KEY_EVICT_BY_NID)) {
1287 obd_export_evict_by_nid(exp->exp_obd, val);
1289 } else if (KEY_IS(KEY_MDS_CONN) && ptlrpc_req_need_swab(req)) {
1290 if (vallen < sizeof(__u32))
1292 __swab32s((__u32 *)val);
1295 /* OBD will also check if KEY_IS(KEY_GRANT_SHRINK), and will cast val to
1296 * a struct ost_body * value */
1297 rc = obd_set_info_async(exp, keylen, key, vallen, val, NULL);
1299 lustre_msg_set_status(req->rq_repmsg, 0);
1303 static int ost_get_info(struct obd_export *exp, struct ptlrpc_request *req)
1306 int keylen, replylen, rc = 0;
1307 struct req_capsule *pill = &req->rq_pill;
1310 /* this common part for get_info rpc */
1311 key = req_capsule_client_get(pill, &RMF_SETINFO_KEY);
1313 DEBUG_REQ(D_HA, req, "no get_info key");
1316 keylen = req_capsule_get_size(pill, &RMF_SETINFO_KEY, RCL_CLIENT);
1318 rc = obd_get_info(exp, keylen, key, &replylen, NULL, NULL);
1322 req_capsule_set_size(pill, &RMF_GENERIC_DATA,
1323 RCL_SERVER, replylen);
1325 rc = req_capsule_server_pack(pill);
1329 reply = req_capsule_server_get(pill, &RMF_GENERIC_DATA);
1333 /* call again to fill in the reply buffer */
1334 rc = obd_get_info(exp, keylen, key, &replylen, reply, NULL);
1336 lustre_msg_set_status(req->rq_repmsg, 0);
1340 #ifdef HAVE_QUOTA_SUPPORT
1341 static int ost_handle_quotactl(struct ptlrpc_request *req)
1343 struct obd_quotactl *oqctl, *repoqc;
1347 oqctl = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
1349 GOTO(out, rc = -EPROTO);
1351 rc = req_capsule_server_pack(&req->rq_pill);
1355 repoqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
1356 req->rq_status = obd_quotactl(req->rq_export, oqctl);
1363 static int ost_handle_quotacheck(struct ptlrpc_request *req)
1365 struct obd_quotactl *oqctl;
1369 oqctl = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
1373 rc = req_capsule_server_pack(&req->rq_pill);
1377 req->rq_status = obd_quotacheck(req->rq_export, oqctl);
1381 static int ost_handle_quota_adjust_qunit(struct ptlrpc_request *req)
1383 struct quota_adjust_qunit *oqaq, *repoqa;
1384 struct lustre_quota_ctxt *qctxt;
1388 qctxt = &req->rq_export->exp_obd->u.obt.obt_qctxt;
1389 oqaq = req_capsule_client_get(&req->rq_pill, &RMF_QUOTA_ADJUST_QUNIT);
1391 GOTO(out, rc = -EPROTO);
1393 rc = req_capsule_server_pack(&req->rq_pill);
1397 repoqa = req_capsule_server_get(&req->rq_pill, &RMF_QUOTA_ADJUST_QUNIT);
1398 req->rq_status = obd_quota_adjust_qunit(req->rq_export, oqaq, qctxt);
1406 static int ost_llog_handle_connect(struct obd_export *exp,
1407 struct ptlrpc_request *req)
1409 struct llogd_conn_body *body;
1413 body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_CONN_BODY);
1414 rc = obd_llog_connect(exp, body);
1418 #define ost_init_sec_none(reply, exp) \
1420 reply->ocd_connect_flags &= ~(OBD_CONNECT_RMT_CLIENT | \
1421 OBD_CONNECT_RMT_CLIENT_FORCE | \
1422 OBD_CONNECT_OSS_CAPA); \
1423 spin_lock(&exp->exp_lock); \
1424 exp->exp_connect_flags = reply->ocd_connect_flags; \
1425 spin_unlock(&exp->exp_lock); \
1428 static int ost_init_sec_level(struct ptlrpc_request *req)
1430 struct obd_export *exp = req->rq_export;
1431 struct req_capsule *pill = &req->rq_pill;
1432 struct obd_device *obd = exp->exp_obd;
1433 struct filter_obd *filter = &obd->u.filter;
1434 char *client = libcfs_nid2str(req->rq_peer.nid);
1435 struct obd_connect_data *data, *reply;
1439 data = req_capsule_client_get(pill, &RMF_CONNECT_DATA);
1440 reply = req_capsule_server_get(pill, &RMF_CONNECT_DATA);
1441 if (data == NULL || reply == NULL)
1444 /* connection from MDT is always trusted */
1445 if (req->rq_auth_usr_mdt) {
1446 ost_init_sec_none(reply, exp);
1450 /* no GSS support case */
1451 if (!req->rq_auth_gss) {
1452 if (filter->fo_sec_level > LUSTRE_SEC_NONE) {
1453 CWARN("client %s -> target %s does not user GSS, "
1454 "can not run under security level %d.\n",
1455 client, obd->obd_name, filter->fo_sec_level);
1458 ost_init_sec_none(reply, exp);
1463 /* old version case */
1464 if (unlikely(!(data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) ||
1465 !(data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA))) {
1466 if (filter->fo_sec_level > LUSTRE_SEC_NONE) {
1467 CWARN("client %s -> target %s uses old version, "
1468 "can not run under security level %d.\n",
1469 client, obd->obd_name, filter->fo_sec_level);
1472 CWARN("client %s -> target %s uses old version, "
1473 "run under security level %d.\n",
1474 client, obd->obd_name, filter->fo_sec_level);
1475 ost_init_sec_none(reply, exp);
1480 remote = data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT_FORCE;
1482 if (!req->rq_auth_remote)
1483 CDEBUG(D_SEC, "client (local realm) %s -> target %s "
1484 "asked to be remote.\n", client, obd->obd_name);
1485 } else if (req->rq_auth_remote) {
1487 CDEBUG(D_SEC, "client (remote realm) %s -> target %s is set "
1488 "as remote by default.\n", client, obd->obd_name);
1492 if (!filter->fo_fl_oss_capa) {
1493 CDEBUG(D_SEC, "client %s -> target %s is set as remote,"
1494 " but OSS capabilities are not enabled: %d.\n",
1495 client, obd->obd_name, filter->fo_fl_oss_capa);
1500 switch (filter->fo_sec_level) {
1501 case LUSTRE_SEC_NONE:
1503 ost_init_sec_none(reply, exp);
1506 CDEBUG(D_SEC, "client %s -> target %s is set as remote, "
1507 "can not run under security level %d.\n",
1508 client, obd->obd_name, filter->fo_sec_level);
1511 case LUSTRE_SEC_REMOTE:
1513 ost_init_sec_none(reply, exp);
1515 case LUSTRE_SEC_ALL:
1517 reply->ocd_connect_flags &= ~(OBD_CONNECT_RMT_CLIENT |
1518 OBD_CONNECT_RMT_CLIENT_FORCE);
1519 if (!filter->fo_fl_oss_capa)
1520 reply->ocd_connect_flags &= ~OBD_CONNECT_OSS_CAPA;
1522 spin_lock(&exp->exp_lock);
1523 exp->exp_connect_flags = reply->ocd_connect_flags;
1524 spin_unlock(&exp->exp_lock);
1536 * this should be done in filter_connect()/filter_reconnect(), but
1537 * we can't obtain information like NID, which stored in incoming
1538 * request, thus can't decide what flavor to use. so we do it here.
1540 * This hack should be removed after the OST stack be rewritten, just
1541 * like what we are doing in mdt_obd_connect()/mdt_obd_reconnect().
1543 static int ost_connect_check_sptlrpc(struct ptlrpc_request *req)
1545 struct obd_export *exp = req->rq_export;
1546 struct filter_obd *filter = &exp->exp_obd->u.filter;
1547 struct sptlrpc_flavor flvr;
1550 if (unlikely(strcmp(exp->exp_obd->obd_type->typ_name,
1551 LUSTRE_ECHO_NAME) == 0)) {
1552 exp->exp_flvr.sf_rpc = SPTLRPC_FLVR_ANY;
1556 if (exp->exp_flvr.sf_rpc == SPTLRPC_FLVR_INVALID) {
1557 read_lock(&filter->fo_sptlrpc_lock);
1558 sptlrpc_target_choose_flavor(&filter->fo_sptlrpc_rset,
1562 read_unlock(&filter->fo_sptlrpc_lock);
1564 spin_lock(&exp->exp_lock);
1566 exp->exp_sp_peer = req->rq_sp_from;
1567 exp->exp_flvr = flvr;
1569 if (exp->exp_flvr.sf_rpc != SPTLRPC_FLVR_ANY &&
1570 exp->exp_flvr.sf_rpc != req->rq_flvr.sf_rpc) {
1571 CERROR("unauthorized rpc flavor %x from %s, "
1572 "expect %x\n", req->rq_flvr.sf_rpc,
1573 libcfs_nid2str(req->rq_peer.nid),
1574 exp->exp_flvr.sf_rpc);
1578 spin_unlock(&exp->exp_lock);
1580 if (exp->exp_sp_peer != req->rq_sp_from) {
1581 CERROR("RPC source %s doesn't match %s\n",
1582 sptlrpc_part2name(req->rq_sp_from),
1583 sptlrpc_part2name(exp->exp_sp_peer));
1586 rc = sptlrpc_target_export_check(exp, req);
1593 static int ost_filter_recovery_request(struct ptlrpc_request *req,
1594 struct obd_device *obd, int *process)
1596 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
1597 case OST_CONNECT: /* This will never get here, but for completeness. */
1598 case OST_DISCONNECT:
1609 case OBD_LOG_CANCEL:
1611 *process = target_queue_recovery_request(req, obd);
1615 DEBUG_REQ(D_ERROR, req, "not permitted during recovery");
1621 int ost_msg_check_version(struct lustre_msg *msg)
1625 switch(lustre_msg_get_opc(msg)) {
1627 case OST_DISCONNECT:
1630 case SEC_CTX_INIT_CONT:
1632 rc = lustre_msg_check_version(msg, LUSTRE_OBD_VERSION);
1634 CERROR("bad opc %u version %08x, expecting %08x\n",
1635 lustre_msg_get_opc(msg),
1636 lustre_msg_get_version(msg),
1637 LUSTRE_OBD_VERSION);
1650 #ifdef HAVE_QUOTA_SUPPORT
1651 case OST_QUOTACHECK:
1653 case OST_QUOTA_ADJUST_QUNIT:
1655 rc = lustre_msg_check_version(msg, LUSTRE_OST_VERSION);
1657 CERROR("bad opc %u version %08x, expecting %08x\n",
1658 lustre_msg_get_opc(msg),
1659 lustre_msg_get_version(msg),
1660 LUSTRE_OST_VERSION);
1665 case LDLM_BL_CALLBACK:
1666 case LDLM_CP_CALLBACK:
1667 rc = lustre_msg_check_version(msg, LUSTRE_DLM_VERSION);
1669 CERROR("bad opc %u version %08x, expecting %08x\n",
1670 lustre_msg_get_opc(msg),
1671 lustre_msg_get_version(msg),
1672 LUSTRE_DLM_VERSION);
1674 case LLOG_ORIGIN_CONNECT:
1675 case OBD_LOG_CANCEL:
1676 rc = lustre_msg_check_version(msg, LUSTRE_LOG_VERSION);
1678 CERROR("bad opc %u version %08x, expecting %08x\n",
1679 lustre_msg_get_opc(msg),
1680 lustre_msg_get_version(msg),
1681 LUSTRE_LOG_VERSION);
1684 CERROR("Unexpected opcode %d\n", lustre_msg_get_opc(msg));
1691 * Returns 1 if the given PTLRPC matches the given LDLM locks, or 0 if it does
1694 static int ost_rw_hpreq_lock_match(struct ptlrpc_request *req,
1695 struct ldlm_lock *lock)
1697 struct niobuf_remote *nb;
1698 struct obd_ioobj *ioo;
1699 struct ost_body *body;
1700 int objcount, niocount;
1705 opc = lustre_msg_get_opc(req->rq_reqmsg);
1706 LASSERT(opc == OST_READ || opc == OST_WRITE);
1708 /* As the request may be covered by several locks, do not look at
1709 * o_handle, look at the RPC IO region. */
1710 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
1714 objcount = req_capsule_get_size(&req->rq_pill, &RMF_OBD_IOOBJ,
1715 RCL_CLIENT) / sizeof(*ioo);
1716 ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
1720 for (niocount = i = 0; i < objcount; i++)
1721 niocount += ioo[i].ioo_bufcnt;
1723 nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
1725 niocount != (req_capsule_get_size(&req->rq_pill, &RMF_NIOBUF_REMOTE,
1726 RCL_CLIENT) / sizeof(*nb)))
1730 if (opc == OST_READ)
1733 start = nb[0].offset & CFS_PAGE_MASK;
1734 end = (nb[ioo->ioo_bufcnt - 1].offset +
1735 nb[ioo->ioo_bufcnt - 1].len - 1) | ~CFS_PAGE_MASK;
1737 LASSERT(lock->l_resource != NULL);
1738 if (!osc_res_name_eq(ioo->ioo_id, ioo->ioo_gr,
1739 &lock->l_resource->lr_name))
1742 if (!(lock->l_granted_mode & mode))
1745 if (lock->l_policy_data.l_extent.end < start ||
1746 lock->l_policy_data.l_extent.start > end)
1753 * High-priority queue request check for whether the given PTLRPC request (\a
1754 * req) is blocking an LDLM lock cancel.
1756 * Returns 1 if the given given PTLRPC request (\a req) is blocking an LDLM lock
1757 * cancel, 0 if it is not, and -EFAULT if the request is malformed.
1759 * Only OST_READs, OST_WRITEs and OST_PUNCHes go on the h-p RPC queue. This
1760 * function looks only at OST_READs and OST_WRITEs.
1762 static int ost_rw_hpreq_check(struct ptlrpc_request *req)
1764 struct niobuf_remote *nb;
1765 struct obd_ioobj *ioo;
1766 struct ost_body *body;
1767 int objcount, niocount;
1771 opc = lustre_msg_get_opc(req->rq_reqmsg);
1772 LASSERT(opc == OST_READ || opc == OST_WRITE);
1774 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
1778 objcount = req_capsule_get_size(&req->rq_pill, &RMF_OBD_IOOBJ,
1779 RCL_CLIENT) / sizeof(*ioo);
1780 ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
1784 for (niocount = i = 0; i < objcount; i++)
1785 niocount += ioo[i].ioo_bufcnt;
1786 nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
1788 niocount != (req_capsule_get_size(&req->rq_pill, &RMF_NIOBUF_REMOTE,
1789 RCL_CLIENT) / sizeof(*nb)))
1791 if (niocount != 0 && (nb[0].flags & OBD_BRW_SRVLOCK))
1795 if (opc == OST_READ)
1797 RETURN(ost_rw_prolong_locks(req, ioo, nb, &body->oa, mode));
1800 static int ost_punch_prolong_locks(struct ptlrpc_request *req, struct obdo *oa)
1802 struct ldlm_res_id res_id = { .name = { oa->o_id } };
1803 struct ost_prolong_data opd = { 0 };
1808 end = start + oa->o_blocks;
1810 opd.opd_mode = LCK_PW;
1811 opd.opd_exp = req->rq_export;
1812 opd.opd_policy.l_extent.start = start & CFS_PAGE_MASK;
1813 if (oa->o_blocks == OBD_OBJECT_EOF || end < start)
1814 opd.opd_policy.l_extent.end = OBD_OBJECT_EOF;
1816 opd.opd_policy.l_extent.end = end | ~CFS_PAGE_MASK;
1818 /* prolong locks for the current service time of the corresponding
1819 * portal (= OST_IO_PORTAL) */
1820 opd.opd_timeout = AT_OFF ? obd_timeout / 2:
1821 max(at_est2timeout(at_get(&req->rq_rqbd->
1822 rqbd_service->srv_at_estimate)), ldlm_timeout);
1824 CDEBUG(D_DLMTRACE,"refresh locks: "LPU64"/"LPU64" ("LPU64"->"LPU64")\n",
1825 res_id.name[0], res_id.name[1], opd.opd_policy.l_extent.start,
1826 opd.opd_policy.l_extent.end);
1829 ldlm_resource_iterate(req->rq_export->exp_obd->obd_namespace, &res_id,
1830 ost_prolong_locks_iter, &opd);
1831 RETURN(opd.opd_lock_match);
1835 * Like ost_rw_hpreq_lock_match(), but for OST_PUNCH RPCs.
1837 static int ost_punch_hpreq_lock_match(struct ptlrpc_request *req,
1838 struct ldlm_lock *lock)
1840 struct ost_body *body;
1843 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
1845 RETURN(0); /* can't return -EFAULT here */
1847 if (body->oa.o_valid & OBD_MD_FLHANDLE &&
1848 body->oa.o_handle.cookie == lock->l_handle.h_cookie)
1854 * Like ost_rw_hpreq_check(), but for OST_PUNCH RPCs.
1856 static int ost_punch_hpreq_check(struct ptlrpc_request *req)
1858 struct ost_body *body;
1860 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
1864 LASSERT(!(body->oa.o_valid & OBD_MD_FLFLAGS) ||
1865 !(body->oa.o_flags & OBD_FL_SRVLOCK));
1867 RETURN(ost_punch_prolong_locks(req, &body->oa));
1870 struct ptlrpc_hpreq_ops ost_hpreq_rw = {
1871 .hpreq_lock_match = ost_rw_hpreq_lock_match,
1872 .hpreq_check = ost_rw_hpreq_check,
1875 struct ptlrpc_hpreq_ops ost_hpreq_punch = {
1876 .hpreq_lock_match = ost_punch_hpreq_lock_match,
1877 .hpreq_check = ost_punch_hpreq_check,
1880 /** Assign high priority operations to the request if needed. */
1881 static int ost_hpreq_handler(struct ptlrpc_request *req)
1884 if (req->rq_export) {
1885 int opc = lustre_msg_get_opc(req->rq_reqmsg);
1886 struct ost_body *body;
1888 if (opc == OST_READ || opc == OST_WRITE) {
1889 struct niobuf_remote *nb;
1890 struct obd_ioobj *ioo;
1891 int objcount, niocount;
1894 /* RPCs on the H-P queue can be inspected before
1895 * ost_handler() initializes their pills, so we
1896 * initialize that here. Capsule initialization is
1897 * idempotent, as is setting the pill's format (provided
1898 * it doesn't change).
1900 req_capsule_init(&req->rq_pill, req, RCL_SERVER);
1901 req_capsule_set(&req->rq_pill, &RQF_OST_BRW);
1903 body = req_capsule_client_get(&req->rq_pill,
1906 CERROR("Missing/short ost_body\n");
1909 objcount = req_capsule_get_size(&req->rq_pill,
1913 if (objcount == 0) {
1914 CERROR("Missing/short ioobj\n");
1918 CERROR("too many ioobjs (%d)\n", objcount);
1922 ioo = req_capsule_client_get(&req->rq_pill,
1925 CERROR("Missing/short ioobj\n");
1929 for (niocount = i = 0; i < objcount; i++) {
1930 if (ioo[i].ioo_bufcnt == 0) {
1931 CERROR("ioo[%d] has zero bufcnt\n", i);
1934 niocount += ioo[i].ioo_bufcnt;
1936 if (niocount > PTLRPC_MAX_BRW_PAGES) {
1937 DEBUG_REQ(D_RPCTRACE, req,
1938 "bulk has too many pages (%d)",
1943 nb = req_capsule_client_get(&req->rq_pill,
1944 &RMF_NIOBUF_REMOTE);
1946 CERROR("Missing/short niobuf\n");
1950 if (niocount == 0 || !(nb[0].flags & OBD_BRW_SRVLOCK))
1951 req->rq_ops = &ost_hpreq_rw;
1952 } else if (opc == OST_PUNCH) {
1953 req_capsule_init(&req->rq_pill, req, RCL_SERVER);
1954 req_capsule_set(&req->rq_pill, &RQF_OST_PUNCH);
1956 body = req_capsule_client_get(&req->rq_pill,
1959 CERROR("Missing/short ost_body\n");
1963 if (!(body->oa.o_valid & OBD_MD_FLFLAGS) ||
1964 !(body->oa.o_flags & OBD_FL_SRVLOCK))
1965 req->rq_ops = &ost_hpreq_punch;
1971 /* TODO: handle requests in a similar way as MDT: see mdt_handle_common() */
1972 int ost_handle(struct ptlrpc_request *req)
1974 struct obd_trans_info trans_info = { 0, };
1975 struct obd_trans_info *oti = &trans_info;
1976 int should_process, fail = OBD_FAIL_OST_ALL_REPLY_NET, rc = 0;
1977 struct obd_device *obd = NULL;
1980 LASSERT(current->journal_info == NULL);
1982 /* primordial rpcs don't affect server recovery */
1983 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
1985 case SEC_CTX_INIT_CONT:
1990 req_capsule_init(&req->rq_pill, req, RCL_SERVER);
1992 if (lustre_msg_get_opc(req->rq_reqmsg) != OST_CONNECT) {
1995 if (!class_connected_export(req->rq_export)) {
1996 CDEBUG(D_HA,"operation %d on unconnected OST from %s\n",
1997 lustre_msg_get_opc(req->rq_reqmsg),
1998 libcfs_id2str(req->rq_peer));
1999 req->rq_status = -ENOTCONN;
2000 GOTO(out, rc = -ENOTCONN);
2003 obd = req->rq_export->exp_obd;
2005 /* Check for aborted recovery. */
2006 spin_lock_bh(&obd->obd_processing_task_lock);
2007 recovering = obd->obd_recovering;
2008 spin_unlock_bh(&obd->obd_processing_task_lock);
2010 rc = ost_filter_recovery_request(req, obd,
2012 if (rc || !should_process)
2014 else if (should_process < 0) {
2015 req->rq_status = should_process;
2016 rc = ptlrpc_error(req);
2024 rc = ost_msg_check_version(req->rq_reqmsg);
2028 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
2030 CDEBUG(D_INODE, "connect\n");
2031 req_capsule_set(&req->rq_pill, &RQF_OST_CONNECT);
2032 if (OBD_FAIL_CHECK(OBD_FAIL_OST_CONNECT_NET))
2034 rc = target_handle_connect(req);
2035 if (OBD_FAIL_CHECK(OBD_FAIL_OST_CONNECT_NET2))
2038 rc = ost_init_sec_level(req);
2040 rc = ost_connect_check_sptlrpc(req);
2044 case OST_DISCONNECT:
2045 CDEBUG(D_INODE, "disconnect\n");
2046 req_capsule_set(&req->rq_pill, &RQF_OST_DISCONNECT);
2047 if (OBD_FAIL_CHECK(OBD_FAIL_OST_DISCONNECT_NET))
2049 rc = target_handle_disconnect(req);
2052 CDEBUG(D_INODE, "create\n");
2053 req_capsule_set(&req->rq_pill, &RQF_OST_CREATE);
2054 if (OBD_FAIL_CHECK(OBD_FAIL_OST_CREATE_NET))
2056 if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
2057 GOTO(out, rc = -EROFS);
2058 rc = ost_create(req->rq_export, req, oti);
2061 CDEBUG(D_INODE, "destroy\n");
2062 req_capsule_set(&req->rq_pill, &RQF_OST_DESTROY);
2063 if (OBD_FAIL_CHECK(OBD_FAIL_OST_DESTROY_NET))
2065 if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
2066 GOTO(out, rc = -EROFS);
2067 rc = ost_destroy(req->rq_export, req, oti);
2070 CDEBUG(D_INODE, "getattr\n");
2071 req_capsule_set(&req->rq_pill, &RQF_OST_GETATTR);
2072 if (OBD_FAIL_CHECK(OBD_FAIL_OST_GETATTR_NET))
2074 rc = ost_getattr(req->rq_export, req);
2077 CDEBUG(D_INODE, "setattr\n");
2078 req_capsule_set(&req->rq_pill, &RQF_OST_SETATTR);
2079 if (OBD_FAIL_CHECK(OBD_FAIL_OST_SETATTR_NET))
2081 rc = ost_setattr(req->rq_export, req, oti);
2084 req_capsule_set(&req->rq_pill, &RQF_OST_BRW);
2085 CDEBUG(D_INODE, "write\n");
2086 /* req->rq_request_portal would be nice, if it was set */
2087 if (req->rq_rqbd->rqbd_service->srv_req_portal !=OST_IO_PORTAL){
2088 CERROR("%s: deny write request from %s to portal %u\n",
2089 req->rq_export->exp_obd->obd_name,
2090 obd_export_nid2str(req->rq_export),
2091 req->rq_rqbd->rqbd_service->srv_req_portal);
2092 GOTO(out, rc = -EPROTO);
2094 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_NET))
2096 if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOSPC))
2097 GOTO(out, rc = -ENOSPC);
2098 if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
2099 GOTO(out, rc = -EROFS);
2100 rc = ost_brw_write(req, oti);
2101 LASSERT(current->journal_info == NULL);
2102 /* ost_brw_write sends its own replies */
2105 req_capsule_set(&req->rq_pill, &RQF_OST_BRW);
2106 CDEBUG(D_INODE, "read\n");
2107 /* req->rq_request_portal would be nice, if it was set */
2108 if (req->rq_rqbd->rqbd_service->srv_req_portal !=OST_IO_PORTAL){
2109 CERROR("%s: deny read request from %s to portal %u\n",
2110 req->rq_export->exp_obd->obd_name,
2111 obd_export_nid2str(req->rq_export),
2112 req->rq_rqbd->rqbd_service->srv_req_portal);
2113 GOTO(out, rc = -EPROTO);
2115 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_NET))
2117 rc = ost_brw_read(req, oti);
2118 LASSERT(current->journal_info == NULL);
2119 /* ost_brw_read sends its own replies */
2122 CDEBUG(D_INODE, "punch\n");
2123 req_capsule_set(&req->rq_pill, &RQF_OST_PUNCH);
2124 if (OBD_FAIL_CHECK(OBD_FAIL_OST_PUNCH_NET))
2126 if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
2127 GOTO(out, rc = -EROFS);
2128 rc = ost_punch(req->rq_export, req, oti);
2131 CDEBUG(D_INODE, "statfs\n");
2132 req_capsule_set(&req->rq_pill, &RQF_OST_STATFS);
2133 if (OBD_FAIL_CHECK(OBD_FAIL_OST_STATFS_NET))
2135 rc = ost_statfs(req);
2138 CDEBUG(D_INODE, "sync\n");
2139 req_capsule_set(&req->rq_pill, &RQF_OST_SYNC);
2140 if (OBD_FAIL_CHECK(OBD_FAIL_OST_SYNC_NET))
2142 rc = ost_sync(req->rq_export, req);
2145 DEBUG_REQ(D_INODE, req, "set_info");
2146 req_capsule_set(&req->rq_pill, &RQF_OBD_SET_INFO);
2147 rc = ost_set_info(req->rq_export, req);
2150 DEBUG_REQ(D_INODE, req, "get_info");
2151 req_capsule_set(&req->rq_pill, &RQF_OST_GET_INFO_GENERIC);
2152 rc = ost_get_info(req->rq_export, req);
2154 #ifdef HAVE_QUOTA_SUPPORT
2155 case OST_QUOTACHECK:
2156 CDEBUG(D_INODE, "quotacheck\n");
2157 req_capsule_set(&req->rq_pill, &RQF_OST_QUOTACHECK);
2158 if (OBD_FAIL_CHECK(OBD_FAIL_OST_QUOTACHECK_NET))
2160 rc = ost_handle_quotacheck(req);
2163 CDEBUG(D_INODE, "quotactl\n");
2164 req_capsule_set(&req->rq_pill, &RQF_OST_QUOTACTL);
2165 if (OBD_FAIL_CHECK(OBD_FAIL_OST_QUOTACTL_NET))
2167 rc = ost_handle_quotactl(req);
2169 case OST_QUOTA_ADJUST_QUNIT:
2170 CDEBUG(D_INODE, "quota_adjust_qunit\n");
2171 req_capsule_set(&req->rq_pill, &RQF_OST_QUOTA_ADJUST_QUNIT);
2172 rc = ost_handle_quota_adjust_qunit(req);
2176 DEBUG_REQ(D_INODE, req, "ping");
2177 req_capsule_set(&req->rq_pill, &RQF_OBD_PING);
2178 rc = target_handle_ping(req);
2180 /* FIXME - just reply status */
2181 case LLOG_ORIGIN_CONNECT:
2182 DEBUG_REQ(D_INODE, req, "log connect");
2183 req_capsule_set(&req->rq_pill, &RQF_LLOG_ORIGIN_CONNECT);
2184 rc = ost_llog_handle_connect(req->rq_export, req);
2185 req->rq_status = rc;
2186 rc = req_capsule_server_pack(&req->rq_pill);
2189 RETURN(ptlrpc_reply(req));
2190 case OBD_LOG_CANCEL:
2191 CDEBUG(D_INODE, "log cancel\n");
2192 req_capsule_set(&req->rq_pill, &RQF_LOG_CANCEL);
2193 if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LOG_CANCEL_NET))
2195 rc = llog_origin_handle_cancel(req);
2196 if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LOG_CANCEL_REP))
2198 req->rq_status = rc;
2199 rc = req_capsule_server_pack(&req->rq_pill);
2202 RETURN(ptlrpc_reply(req));
2204 CDEBUG(D_INODE, "enqueue\n");
2205 req_capsule_set(&req->rq_pill, &RQF_LDLM_ENQUEUE);
2206 if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_ENQUEUE))
2208 rc = ldlm_handle_enqueue(req, ldlm_server_completion_ast,
2209 ldlm_server_blocking_ast,
2210 ldlm_server_glimpse_ast);
2211 fail = OBD_FAIL_OST_LDLM_REPLY_NET;
2214 CDEBUG(D_INODE, "convert\n");
2215 req_capsule_set(&req->rq_pill, &RQF_LDLM_CONVERT);
2216 if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CONVERT))
2218 rc = ldlm_handle_convert(req);
2221 CDEBUG(D_INODE, "cancel\n");
2222 req_capsule_set(&req->rq_pill, &RQF_LDLM_CANCEL);
2223 if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CANCEL))
2225 rc = ldlm_handle_cancel(req);
2227 case LDLM_BL_CALLBACK:
2228 case LDLM_CP_CALLBACK:
2229 CDEBUG(D_INODE, "callback\n");
2230 CERROR("callbacks should not happen on OST\n");
2233 CERROR("Unexpected opcode %d\n",
2234 lustre_msg_get_opc(req->rq_reqmsg));
2235 req->rq_status = -ENOTSUPP;
2236 rc = ptlrpc_error(req);
2240 LASSERT(current->journal_info == NULL);
2243 /* If we're DISCONNECTing, the export_data is already freed */
2244 if (!rc && lustre_msg_get_opc(req->rq_reqmsg) != OST_DISCONNECT)
2245 target_committed_to_req(req);
2249 oti_to_request(oti, req);
2251 target_send_reply(req, rc, fail);
2254 EXPORT_SYMBOL(ost_handle);
2256 * free per-thread pool created by ost_thread_init().
2258 static void ost_thread_done(struct ptlrpc_thread *thread)
2260 struct ost_thread_local_cache *tls; /* TLS stands for Thread-Local
2265 LASSERT(thread != NULL);
2268 * be prepared to handle partially-initialized pools (because this is
2269 * called from ost_thread_init() for cleanup.
2271 tls = thread->t_data;
2274 thread->t_data = NULL;
2280 * initialize per-thread page pool (bug 5137).
2282 static int ost_thread_init(struct ptlrpc_thread *thread)
2284 struct ost_thread_local_cache *tls;
2288 LASSERT(thread != NULL);
2289 LASSERT(thread->t_data == NULL);
2290 LASSERTF(thread->t_id <= OSS_THREADS_MAX, "%u\n", thread->t_id);
2295 thread->t_data = tls;
2299 #define OST_WATCHDOG_TIMEOUT (obd_timeout * 1000)
2301 /* Sigh - really, this is an OSS, the _server_, not the _target_ */
2302 static int ost_setup(struct obd_device *obd, struct lustre_cfg* lcfg)
2304 struct ost_obd *ost = &obd->u.ost;
2305 struct lprocfs_static_vars lvars;
2306 int oss_min_threads;
2307 int oss_max_threads;
2308 int oss_min_create_threads;
2309 int oss_max_create_threads;
2313 rc = cleanup_group_info();
2317 lprocfs_ost_init_vars(&lvars);
2318 lprocfs_obd_setup(obd, lvars.obd_vars);
2320 sema_init(&ost->ost_health_sem, 1);
2322 if (oss_num_threads) {
2323 /* If oss_num_threads is set, it is the min and the max. */
2324 if (oss_num_threads > OSS_THREADS_MAX)
2325 oss_num_threads = OSS_THREADS_MAX;
2326 if (oss_num_threads < OSS_THREADS_MIN)
2327 oss_num_threads = OSS_THREADS_MIN;
2328 oss_max_threads = oss_min_threads = oss_num_threads;
2330 /* Base min threads on memory and cpus */
2331 oss_min_threads = num_possible_cpus() * CFS_NUM_CACHEPAGES >>
2332 (27 - CFS_PAGE_SHIFT);
2333 if (oss_min_threads < OSS_THREADS_MIN)
2334 oss_min_threads = OSS_THREADS_MIN;
2335 /* Insure a 4x range for dynamic threads */
2336 if (oss_min_threads > OSS_THREADS_MAX / 4)
2337 oss_min_threads = OSS_THREADS_MAX / 4;
2338 oss_max_threads = min(OSS_THREADS_MAX, oss_min_threads * 4 + 1);
2342 ptlrpc_init_svc(OST_NBUFS, OST_BUFSIZE, OST_MAXREQSIZE,
2343 OST_MAXREPSIZE, OST_REQUEST_PORTAL,
2344 OSC_REPLY_PORTAL, OSS_SERVICE_WATCHDOG_FACTOR,
2345 ost_handle, LUSTRE_OSS_NAME,
2346 obd->obd_proc_entry, target_print_req,
2347 oss_min_threads, oss_max_threads,
2348 "ll_ost", LCT_DT_THREAD, NULL);
2349 if (ost->ost_service == NULL) {
2350 CERROR("failed to start service\n");
2351 GOTO(out_lprocfs, rc = -ENOMEM);
2354 rc = ptlrpc_start_threads(obd, ost->ost_service);
2356 GOTO(out_service, rc = -EINVAL);
2358 if (oss_num_create_threads) {
2359 if (oss_num_create_threads > OSS_MAX_CREATE_THREADS)
2360 oss_num_create_threads = OSS_MAX_CREATE_THREADS;
2361 if (oss_num_create_threads < OSS_MIN_CREATE_THREADS)
2362 oss_num_create_threads = OSS_MIN_CREATE_THREADS;
2363 oss_min_create_threads = oss_max_create_threads =
2364 oss_num_create_threads;
2366 oss_min_create_threads = OSS_MIN_CREATE_THREADS;
2367 oss_max_create_threads = OSS_MAX_CREATE_THREADS;
2370 ost->ost_create_service =
2371 ptlrpc_init_svc(OST_NBUFS, OST_BUFSIZE, OST_MAXREQSIZE,
2372 OST_MAXREPSIZE, OST_CREATE_PORTAL,
2373 OSC_REPLY_PORTAL, OSS_SERVICE_WATCHDOG_FACTOR,
2374 ost_handle, "ost_create",
2375 obd->obd_proc_entry, target_print_req,
2376 oss_min_create_threads, oss_max_create_threads,
2377 "ll_ost_creat", LCT_DT_THREAD, NULL);
2378 if (ost->ost_create_service == NULL) {
2379 CERROR("failed to start OST create service\n");
2380 GOTO(out_service, rc = -ENOMEM);
2383 rc = ptlrpc_start_threads(obd, ost->ost_create_service);
2385 GOTO(out_create, rc = -EINVAL);
2387 ost->ost_io_service =
2388 ptlrpc_init_svc(OST_NBUFS, OST_BUFSIZE, OST_MAXREQSIZE,
2389 OST_MAXREPSIZE, OST_IO_PORTAL,
2390 OSC_REPLY_PORTAL, OSS_SERVICE_WATCHDOG_FACTOR,
2391 ost_handle, "ost_io",
2392 obd->obd_proc_entry, target_print_req,
2393 oss_min_threads, oss_max_threads,
2394 "ll_ost_io", LCT_DT_THREAD, ost_hpreq_handler);
2395 if (ost->ost_io_service == NULL) {
2396 CERROR("failed to start OST I/O service\n");
2397 GOTO(out_create, rc = -ENOMEM);
2400 ost->ost_io_service->srv_init = ost_thread_init;
2401 ost->ost_io_service->srv_done = ost_thread_done;
2402 ost->ost_io_service->srv_cpu_affinity = 1;
2403 rc = ptlrpc_start_threads(obd, ost->ost_io_service);
2405 GOTO(out_io, rc = -EINVAL);
2407 ping_evictor_start();
2412 ptlrpc_unregister_service(ost->ost_io_service);
2413 ost->ost_io_service = NULL;
2415 ptlrpc_unregister_service(ost->ost_create_service);
2416 ost->ost_create_service = NULL;
2418 ptlrpc_unregister_service(ost->ost_service);
2419 ost->ost_service = NULL;
2421 lprocfs_obd_cleanup(obd);
2425 static int ost_cleanup(struct obd_device *obd)
2427 struct ost_obd *ost = &obd->u.ost;
2431 ping_evictor_stop();
2433 spin_lock_bh(&obd->obd_processing_task_lock);
2434 if (obd->obd_recovering) {
2435 target_cancel_recovery_timer(obd);
2436 obd->obd_recovering = 0;
2438 spin_unlock_bh(&obd->obd_processing_task_lock);
2440 down(&ost->ost_health_sem);
2441 ptlrpc_unregister_service(ost->ost_service);
2442 ptlrpc_unregister_service(ost->ost_create_service);
2443 ptlrpc_unregister_service(ost->ost_io_service);
2444 ost->ost_service = NULL;
2445 ost->ost_create_service = NULL;
2446 up(&ost->ost_health_sem);
2448 lprocfs_obd_cleanup(obd);
2453 static int ost_health_check(struct obd_device *obd)
2455 struct ost_obd *ost = &obd->u.ost;
2458 down(&ost->ost_health_sem);
2459 rc |= ptlrpc_service_health_check(ost->ost_service);
2460 rc |= ptlrpc_service_health_check(ost->ost_create_service);
2461 rc |= ptlrpc_service_health_check(ost->ost_io_service);
2462 up(&ost->ost_health_sem);
2465 * health_check to return 0 on healthy
2466 * and 1 on unhealthy.
2474 struct ost_thread_local_cache *ost_tls(struct ptlrpc_request *r)
2476 return (struct ost_thread_local_cache *)(r->rq_svc_thread->t_data);
2479 /* use obd ops to offer management infrastructure */
2480 static struct obd_ops ost_obd_ops = {
2481 .o_owner = THIS_MODULE,
2482 .o_setup = ost_setup,
2483 .o_cleanup = ost_cleanup,
2484 .o_health_check = ost_health_check,
2488 static int __init ost_init(void)
2490 struct lprocfs_static_vars lvars;
2494 lprocfs_ost_init_vars(&lvars);
2495 rc = class_register_type(&ost_obd_ops, NULL, lvars.module_vars,
2496 LUSTRE_OSS_NAME, NULL);
2498 if (ost_num_threads != 0 && oss_num_threads == 0) {
2499 LCONSOLE_INFO("ost_num_threads module parameter is deprecated, "
2500 "use oss_num_threads instead or unset both for "
2501 "dynamic thread startup\n");
2502 oss_num_threads = ost_num_threads;
2508 static void /*__exit*/ ost_exit(void)
2510 class_unregister_type(LUSTRE_OSS_NAME);
2513 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
2514 MODULE_DESCRIPTION("Lustre Object Storage Target (OST) v0.01");
2515 MODULE_LICENSE("GPL");
2517 module_init(ost_init);
2518 module_exit(ost_exit);