4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Whamcloud, Inc.
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>
42 #define DEBUG_SUBSYSTEM S_OST
44 #include <linux/module.h>
45 #include <obd_cksum.h>
47 #include <lustre_net.h>
48 #include <lustre_dlm.h>
49 #include <lustre_export.h>
50 #include <lustre_debug.h>
51 #include <linux/init.h>
52 #include <lprocfs_status.h>
53 #include <libcfs/list.h>
54 #include "ost_internal.h"
56 static int oss_num_threads;
57 CFS_MODULE_PARM(oss_num_threads, "i", int, 0444,
58 "number of OSS service threads to start");
60 static int ost_num_threads;
61 CFS_MODULE_PARM(ost_num_threads, "i", int, 0444,
62 "number of OST service threads to start (deprecated)");
64 static int oss_num_create_threads;
65 CFS_MODULE_PARM(oss_num_create_threads, "i", int, 0444,
66 "number of OSS create threads to start");
68 static char *oss_cpts;
69 CFS_MODULE_PARM(oss_cpts, "s", charp, 0444,
70 "CPU partitions OSS threads should run on");
72 static char *oss_io_cpts;
73 CFS_MODULE_PARM(oss_io_cpts, "s", charp, 0444,
74 "CPU partitions OSS IO threads should run on");
77 * this page is allocated statically when module is initializing
78 * it is used to simulate data corruptions, see ost_checksum_bulk()
79 * for details. as the original pages provided by the layers below
80 * can be remain in the internal cache, we do not want to modify
83 static struct page *ost_page_to_corrupt = NULL;
86 * Do not return server-side uid/gid to remote client
88 static void ost_drop_id(struct obd_export *exp, struct obdo *oa)
90 if (exp_connect_rmtclient(exp)) {
93 oa->o_valid &= ~(OBD_MD_FLUID | OBD_MD_FLGID);
98 * Validate oa from client.
99 * If the request comes from 2.0 clients, currently only RSVD seq and IDIF
101 * a. for single MDS seq = FID_SEQ_OST_MDT0,
102 * b. for CMD, seq = FID_SEQ_OST_MDT0, FID_SEQ_OST_MDT1 - FID_SEQ_OST_MAX
104 static int ost_validate_obdo(struct obd_export *exp, struct obdo *oa,
105 struct obd_ioobj *ioobj)
107 if (oa != NULL && !(oa->o_valid & OBD_MD_FLGROUP)) {
108 oa->o_seq = FID_SEQ_OST_MDT0;
110 ioobj->ioo_seq = FID_SEQ_OST_MDT0;
111 /* remove fid_seq_is_rsvd() after FID-on-OST allows SEQ > 9 */
112 } else if (oa == NULL || !(fid_seq_is_rsvd(oa->o_seq) ||
113 fid_seq_is_mdt0(oa->o_seq))) {
114 CERROR("%s: client %s sent invalid object "POSTID"\n",
115 exp->exp_obd->obd_name, obd_export_nid2str(exp),
116 oa ? oa->o_id : -1, oa ? oa->o_seq : -1);
119 obdo_from_ostid(oa, &oa->o_oi);
121 ioobj_from_obdo(ioobj, oa);
125 void oti_to_request(struct obd_trans_info *oti, struct ptlrpc_request *req)
127 struct oti_req_ack_lock *ack_lock;
133 if (req->rq_repmsg) {
134 __u64 versions[PTLRPC_NUM_VERSIONS] = { 0 };
135 lustre_msg_set_transno(req->rq_repmsg, oti->oti_transno);
136 versions[0] = oti->oti_pre_version;
137 lustre_msg_set_versions(req->rq_repmsg, versions);
139 req->rq_transno = oti->oti_transno;
141 /* XXX 4 == entries in oti_ack_locks??? */
142 for (ack_lock = oti->oti_ack_locks, i = 0; i < 4; i++, ack_lock++) {
145 /* XXX not even calling target_send_reply in some cases... */
146 ptlrpc_save_lock (req, &ack_lock->lock, ack_lock->mode, 0);
150 static int ost_destroy(struct obd_export *exp, struct ptlrpc_request *req,
151 struct obd_trans_info *oti)
153 struct ost_body *body, *repbody;
154 struct lustre_capa *capa = NULL;
158 /* Get the request body */
159 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
163 if (body->oa.o_id == 0)
166 rc = ost_validate_obdo(exp, &body->oa, NULL);
170 /* If there's a DLM request, cancel the locks mentioned in it*/
171 if (req_capsule_field_present(&req->rq_pill, &RMF_DLM_REQ, RCL_CLIENT)) {
172 struct ldlm_request *dlm;
174 dlm = req_capsule_client_get(&req->rq_pill, &RMF_DLM_REQ);
177 ldlm_request_cancel(req, dlm, 0);
180 /* If there's a capability, get it */
181 if (body->oa.o_valid & OBD_MD_FLOSSCAPA) {
182 capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1);
184 CERROR("Missing capability for OST DESTROY");
189 /* Prepare the reply */
190 rc = req_capsule_server_pack(&req->rq_pill);
194 /* Get the log cancellation cookie */
195 if (body->oa.o_valid & OBD_MD_FLCOOKIE)
196 oti->oti_logcookies = &body->oa.o_lcookie;
198 /* Finish the reply */
199 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
200 memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
202 /* Do the destroy and set the reply status accordingly */
203 req->rq_status = obd_destroy(req->rq_svc_thread->t_env, exp,
204 &repbody->oa, NULL, oti, NULL, capa);
209 * Helper function for getting server side [start, start+count] DLM lock
210 * if asked by client.
212 static int ost_lock_get(struct obd_export *exp, struct obdo *oa,
213 __u64 start, __u64 count, struct lustre_handle *lh,
214 int mode, __u64 flags)
216 struct ldlm_res_id res_id;
217 ldlm_policy_data_t policy;
218 __u64 end = start + count;
222 LASSERT(!lustre_handle_is_used(lh));
223 /* o_id and o_gr are used for localizing resource, if client miss to set
224 * them, do not trigger ASSERTION. */
225 if (unlikely((oa->o_valid & (OBD_MD_FLID | OBD_MD_FLGROUP)) !=
226 (OBD_MD_FLID | OBD_MD_FLGROUP)))
229 if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
230 !(oa->o_flags & OBD_FL_SRVLOCK))
233 osc_build_res_name(oa->o_id, oa->o_seq, &res_id);
234 CDEBUG(D_INODE, "OST-side extent lock.\n");
236 policy.l_extent.start = start & CFS_PAGE_MASK;
238 /* If ->o_blocks is EOF it means "lock till the end of the
239 * file". Otherwise, it's size of a hole being punched (in bytes) */
240 if (count == OBD_OBJECT_EOF || end < start)
241 policy.l_extent.end = OBD_OBJECT_EOF;
243 policy.l_extent.end = end | ~CFS_PAGE_MASK;
245 RETURN(ldlm_cli_enqueue_local(exp->exp_obd->obd_namespace, &res_id,
246 LDLM_EXTENT, &policy, mode, &flags,
247 ldlm_blocking_ast, ldlm_completion_ast,
248 ldlm_glimpse_ast, NULL, 0, NULL, lh));
251 /* Helper function: release lock, if any. */
252 static void ost_lock_put(struct obd_export *exp,
253 struct lustre_handle *lh, int mode)
256 if (lustre_handle_is_used(lh))
257 ldlm_lock_decref(lh, mode);
261 static int ost_getattr(struct obd_export *exp, struct ptlrpc_request *req)
263 struct ost_body *body, *repbody;
264 struct obd_info *oinfo;
265 struct lustre_handle lh = { 0 };
266 struct lustre_capa *capa = NULL;
270 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
274 rc = ost_validate_obdo(exp, &body->oa, NULL);
278 if (body->oa.o_valid & OBD_MD_FLOSSCAPA) {
279 capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1);
281 CERROR("Missing capability for OST GETATTR");
286 rc = req_capsule_server_pack(&req->rq_pill);
290 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
291 repbody->oa = body->oa;
293 rc = ost_lock_get(exp, &repbody->oa, 0, OBD_OBJECT_EOF, &lh, LCK_PR, 0);
297 OBD_ALLOC_PTR(oinfo);
299 GOTO(unlock, rc = -ENOMEM);
300 oinfo->oi_oa = &repbody->oa;
301 oinfo->oi_capa = capa;
303 req->rq_status = obd_getattr(req->rq_svc_thread->t_env, exp, oinfo);
307 ost_drop_id(exp, &repbody->oa);
310 ost_lock_put(exp, &lh, LCK_PR);
314 static int ost_statfs(struct ptlrpc_request *req)
316 struct obd_statfs *osfs;
320 rc = req_capsule_server_pack(&req->rq_pill);
324 osfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS);
326 req->rq_status = obd_statfs(req->rq_svc_thread->t_env, req->rq_export,
328 cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
330 if (req->rq_status != 0)
331 CERROR("ost: statfs failed: rc %d\n", req->rq_status);
333 if (OBD_FAIL_CHECK(OBD_FAIL_OST_STATFS_EINPROGRESS))
334 req->rq_status = -EINPROGRESS;
339 static int ost_create(struct obd_export *exp, struct ptlrpc_request *req,
340 struct obd_trans_info *oti)
342 struct ost_body *body, *repbody;
346 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
350 rc = ost_validate_obdo(req->rq_export, &body->oa, NULL);
354 rc = req_capsule_server_pack(&req->rq_pill);
358 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
359 repbody->oa = body->oa;
360 oti->oti_logcookies = &body->oa.o_lcookie;
362 req->rq_status = obd_create(req->rq_svc_thread->t_env, exp,
363 &repbody->oa, NULL, oti);
364 //obd_log_cancel(conn, NULL, 1, oti->oti_logcookies, 0);
368 static int ost_punch(struct obd_export *exp, struct ptlrpc_request *req,
369 struct obd_trans_info *oti)
371 struct ost_body *body, *repbody;
373 struct lustre_handle lh = {0,};
377 /* check that we do support OBD_CONNECT_TRUNCLOCK. */
378 CLASSERT(OST_CONNECT_SUPPORTED & OBD_CONNECT_TRUNCLOCK);
380 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
384 rc = ost_validate_obdo(exp, &body->oa, NULL);
388 if ((body->oa.o_valid & (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS)) !=
389 (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS))
392 rc = req_capsule_server_pack(&req->rq_pill);
396 /* standard truncate optimization: if file body is completely
397 * destroyed, don't send data back to the server. */
398 if (body->oa.o_size == 0)
399 flags |= LDLM_AST_DISCARD_DATA;
401 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
402 repbody->oa = body->oa;
404 rc = ost_lock_get(exp, &repbody->oa, repbody->oa.o_size,
405 repbody->oa.o_blocks, &lh, LCK_PW, flags);
407 struct obd_info *oinfo;
408 struct lustre_capa *capa = NULL;
410 if (repbody->oa.o_valid & OBD_MD_FLFLAGS &&
411 repbody->oa.o_flags == OBD_FL_SRVLOCK)
413 * If OBD_FL_SRVLOCK is the only bit set in
414 * ->o_flags, clear OBD_MD_FLFLAGS to avoid falling
415 * through filter_setattr() to filter_iocontrol().
417 repbody->oa.o_valid &= ~OBD_MD_FLFLAGS;
419 if (repbody->oa.o_valid & OBD_MD_FLOSSCAPA) {
420 capa = req_capsule_client_get(&req->rq_pill,
423 CERROR("Missing capability for OST PUNCH");
424 GOTO(unlock, rc = -EFAULT);
428 OBD_ALLOC_PTR(oinfo);
430 GOTO(unlock, rc = -ENOMEM);
431 oinfo->oi_oa = &repbody->oa;
432 oinfo->oi_policy.l_extent.start = oinfo->oi_oa->o_size;
433 oinfo->oi_policy.l_extent.end = oinfo->oi_oa->o_blocks;
434 oinfo->oi_capa = capa;
435 oinfo->oi_flags = OBD_FL_PUNCH;
437 req->rq_status = obd_punch(req->rq_svc_thread->t_env, exp,
441 ost_lock_put(exp, &lh, LCK_PW);
444 ost_drop_id(exp, &repbody->oa);
448 static int ost_sync(struct obd_export *exp, struct ptlrpc_request *req,
449 struct obd_trans_info *oti)
451 struct ost_body *body, *repbody;
452 struct obd_info *oinfo;
453 struct lustre_capa *capa = NULL;
457 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
461 rc = ost_validate_obdo(exp, &body->oa, NULL);
465 if (body->oa.o_valid & OBD_MD_FLOSSCAPA) {
466 capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1);
468 CERROR("Missing capability for OST SYNC");
473 rc = req_capsule_server_pack(&req->rq_pill);
477 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
478 repbody->oa = body->oa;
480 OBD_ALLOC_PTR(oinfo);
484 oinfo->oi_oa = &repbody->oa;
485 oinfo->oi_capa = capa;
486 oinfo->oi_jobid = oti->oti_jobid;
487 req->rq_status = obd_sync(req->rq_svc_thread->t_env, exp, oinfo,
488 repbody->oa.o_size, repbody->oa.o_blocks,
492 ost_drop_id(exp, &repbody->oa);
496 static int ost_setattr(struct obd_export *exp, struct ptlrpc_request *req,
497 struct obd_trans_info *oti)
499 struct ost_body *body, *repbody;
500 struct obd_info *oinfo;
501 struct lustre_capa *capa = NULL;
505 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
509 rc = ost_validate_obdo(req->rq_export, &body->oa, NULL);
513 rc = req_capsule_server_pack(&req->rq_pill);
517 if (body->oa.o_valid & OBD_MD_FLOSSCAPA) {
518 capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1);
520 CERROR("Missing capability for OST SETATTR");
525 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
526 repbody->oa = body->oa;
528 OBD_ALLOC_PTR(oinfo);
531 oinfo->oi_oa = &repbody->oa;
532 oinfo->oi_capa = capa;
534 req->rq_status = obd_setattr(req->rq_svc_thread->t_env, exp, oinfo,
539 ost_drop_id(exp, &repbody->oa);
543 static __u32 ost_checksum_bulk(struct ptlrpc_bulk_desc *desc, int opc,
544 cksum_type_t cksum_type)
546 struct cfs_crypto_hash_desc *hdesc;
547 unsigned int bufsize;
549 unsigned char cfs_alg = cksum_obd2cfs(cksum_type);
552 hdesc = cfs_crypto_hash_init(cfs_alg, NULL, 0);
554 CERROR("Unable to initialize checksum hash %s\n",
555 cfs_crypto_hash_name(cfs_alg));
556 return PTR_ERR(hdesc);
558 CDEBUG(D_INFO, "Checksum for algo %s\n", cfs_crypto_hash_name(cfs_alg));
559 for (i = 0; i < desc->bd_iov_count; i++) {
561 /* corrupt the data before we compute the checksum, to
562 * simulate a client->OST data error */
563 if (i == 0 && opc == OST_WRITE &&
564 OBD_FAIL_CHECK(OBD_FAIL_OST_CHECKSUM_RECEIVE)) {
565 int off = desc->bd_iov[i].kiov_offset & ~CFS_PAGE_MASK;
566 int len = desc->bd_iov[i].kiov_len;
567 struct page *np = ost_page_to_corrupt;
568 char *ptr = kmap(desc->bd_iov[i].kiov_page) + off;
571 char *ptr2 = kmap(np) + off;
573 memcpy(ptr2, ptr, len);
574 memcpy(ptr2, "bad3", min(4, len));
576 desc->bd_iov[i].kiov_page = np;
578 CERROR("can't alloc page for corruption\n");
581 cfs_crypto_hash_update_page(hdesc, desc->bd_iov[i].kiov_page,
582 desc->bd_iov[i].kiov_offset & ~CFS_PAGE_MASK,
583 desc->bd_iov[i].kiov_len);
585 /* corrupt the data after we compute the checksum, to
586 * simulate an OST->client data error */
587 if (i == 0 && opc == OST_READ &&
588 OBD_FAIL_CHECK(OBD_FAIL_OST_CHECKSUM_SEND)) {
589 int off = desc->bd_iov[i].kiov_offset & ~CFS_PAGE_MASK;
590 int len = desc->bd_iov[i].kiov_len;
591 struct page *np = ost_page_to_corrupt;
592 char *ptr = kmap(desc->bd_iov[i].kiov_page) + off;
595 char *ptr2 = kmap(np) + off;
597 memcpy(ptr2, ptr, len);
598 memcpy(ptr2, "bad4", min(4, len));
600 desc->bd_iov[i].kiov_page = np;
602 CERROR("can't alloc page for corruption\n");
608 err = cfs_crypto_hash_final(hdesc, (unsigned char *)&cksum, &bufsize);
610 cfs_crypto_hash_final(hdesc, NULL, NULL);
615 static int ost_brw_lock_get(int mode, struct obd_export *exp,
616 struct obd_ioobj *obj, struct niobuf_remote *nb,
617 struct lustre_handle *lh)
620 int nrbufs = obj->ioo_bufcnt;
621 struct ldlm_res_id res_id;
622 ldlm_policy_data_t policy;
626 osc_build_res_name(obj->ioo_id, obj->ioo_seq, &res_id);
627 LASSERT(mode == LCK_PR || mode == LCK_PW);
628 LASSERT(!lustre_handle_is_used(lh));
630 if (nrbufs == 0 || !(nb[0].flags & OBD_BRW_SRVLOCK))
633 for (i = 1; i < nrbufs; i ++)
634 if ((nb[0].flags & OBD_BRW_SRVLOCK) !=
635 (nb[i].flags & OBD_BRW_SRVLOCK))
638 policy.l_extent.start = nb[0].offset & CFS_PAGE_MASK;
639 policy.l_extent.end = (nb[nrbufs - 1].offset +
640 nb[nrbufs - 1].len - 1) | ~CFS_PAGE_MASK;
642 RETURN(ldlm_cli_enqueue_local(exp->exp_obd->obd_namespace, &res_id,
643 LDLM_EXTENT, &policy, mode, &flags,
644 ldlm_blocking_ast, ldlm_completion_ast,
645 ldlm_glimpse_ast, NULL, 0, NULL, lh));
648 static void ost_brw_lock_put(int mode,
649 struct obd_ioobj *obj, struct niobuf_remote *niob,
650 struct lustre_handle *lh)
653 LASSERT(mode == LCK_PR || mode == LCK_PW);
654 LASSERT((obj->ioo_bufcnt > 0 && (niob[0].flags & OBD_BRW_SRVLOCK)) ==
655 lustre_handle_is_used(lh));
656 if (lustre_handle_is_used(lh))
657 ldlm_lock_decref(lh, mode);
661 /* Allocate thread local buffers if needed */
662 static struct ost_thread_local_cache *ost_tls_get(struct ptlrpc_request *r)
664 struct ost_thread_local_cache *tls =
665 (struct ost_thread_local_cache *)(r->rq_svc_thread->t_data);
667 /* In normal mode of operation an I/O request is serviced only
668 * by ll_ost_io threads each of them has own tls buffers allocated by
669 * ost_io_thread_init().
670 * During recovery, an I/O request may be queued until any of the ost
671 * service threads process it. Not necessary it should be one of
672 * ll_ost_io threads. In that case we dynamically allocating tls
673 * buffers for the request service time. */
674 if (unlikely(tls == NULL)) {
675 LASSERT(r->rq_export->exp_in_recovery);
679 r->rq_svc_thread->t_data = tls;
685 /* Free thread local buffers if they were allocated only for servicing
686 * this one request */
687 static void ost_tls_put(struct ptlrpc_request *r)
689 struct ost_thread_local_cache *tls =
690 (struct ost_thread_local_cache *)(r->rq_svc_thread->t_data);
692 if (unlikely(tls->temporary)) {
694 r->rq_svc_thread->t_data = NULL;
698 static int ost_brw_read(struct ptlrpc_request *req, struct obd_trans_info *oti)
700 struct ptlrpc_bulk_desc *desc = NULL;
701 struct obd_export *exp = req->rq_export;
702 struct niobuf_remote *remote_nb;
703 struct niobuf_local *local_nb;
704 struct obd_ioobj *ioo;
705 struct ost_body *body, *repbody;
706 struct lustre_capa *capa = NULL;
707 struct l_wait_info lwi;
708 struct lustre_handle lockh = { 0 };
709 int niocount, npages, nob = 0, rc, i;
711 struct ost_thread_local_cache *tls;
714 req->rq_bulk_read = 1;
716 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_READ_BULK))
717 GOTO(out, rc = -EIO);
719 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_BULK, (obd_timeout + 1) / 4);
721 /* Check if there is eviction in progress, and if so, wait for it to
723 if (unlikely(cfs_atomic_read(&exp->exp_obd->obd_evict_inprogress))) {
724 lwi = LWI_INTR(NULL, NULL); // We do not care how long it takes
725 rc = l_wait_event(exp->exp_obd->obd_evict_inprogress_waitq,
726 !cfs_atomic_read(&exp->exp_obd->obd_evict_inprogress),
730 GOTO(out, rc = -ENOTCONN);
732 /* ost_body, ioobj & noibuf_remote are verified and swabbed in
733 * ost_rw_hpreq_check(). */
734 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
736 GOTO(out, rc = -EFAULT);
739 * A req_capsule_X_get_array(pill, field, ptr_to_element_count) function
740 * would be useful here and wherever we get &RMF_OBD_IOOBJ and
741 * &RMF_NIOBUF_REMOTE.
743 ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
745 GOTO(out, rc = -EFAULT);
747 rc = ost_validate_obdo(exp, &body->oa, ioo);
751 niocount = ioo->ioo_bufcnt;
752 remote_nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
753 if (remote_nb == NULL)
754 GOTO(out, rc = -EFAULT);
756 if (body->oa.o_valid & OBD_MD_FLOSSCAPA) {
757 capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1);
759 CERROR("Missing capability for OST BRW READ");
760 GOTO(out, rc = -EFAULT);
764 rc = req_capsule_server_pack(&req->rq_pill);
768 tls = ost_tls_get(req);
770 GOTO(out_bulk, rc = -ENOMEM);
771 local_nb = tls->local;
773 rc = ost_brw_lock_get(LCK_PR, exp, ioo, remote_nb, &lockh);
778 * If getting the lock took more time than
779 * client was willing to wait, drop it. b=11330
781 if (cfs_time_current_sec() > req->rq_deadline ||
782 OBD_FAIL_CHECK(OBD_FAIL_OST_DROP_REQ)) {
784 CERROR("Dropping timed-out read from %s because locking"
785 "object "LPX64" took %ld seconds (limit was %ld).\n",
786 libcfs_id2str(req->rq_peer), ioo->ioo_id,
787 cfs_time_current_sec() - req->rq_arrival_time.tv_sec,
788 req->rq_deadline - req->rq_arrival_time.tv_sec);
789 GOTO(out_lock, rc = -ETIMEDOUT);
792 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
793 memcpy(&repbody->oa, &body->oa, sizeof(repbody->oa));
795 npages = OST_THREAD_POOL_SIZE;
796 rc = obd_preprw(req->rq_svc_thread->t_env, OBD_BRW_READ, exp,
797 &repbody->oa, 1, ioo, remote_nb, &npages, local_nb,
802 desc = ptlrpc_prep_bulk_exp(req, npages,
803 BULK_PUT_SOURCE, OST_BULK_PORTAL);
805 GOTO(out_commitrw, rc = -ENOMEM);
808 for (i = 0; i < npages; i++) {
809 int page_rc = local_nb[i].rc;
811 if (page_rc < 0) { /* error */
817 if (page_rc != 0) { /* some data! */
818 LASSERT (local_nb[i].page != NULL);
819 ptlrpc_prep_bulk_page_nopin(desc, local_nb[i].page,
820 local_nb[i].lnb_page_offset,
824 if (page_rc != local_nb[i].len) { /* short read */
825 /* All subsequent pages should be 0 */
827 LASSERT(local_nb[i].rc == 0);
832 if (body->oa.o_valid & OBD_MD_FLCKSUM) {
833 cksum_type_t cksum_type =
834 cksum_type_unpack(repbody->oa.o_valid & OBD_MD_FLFLAGS ?
835 repbody->oa.o_flags : 0);
836 repbody->oa.o_flags = cksum_type_pack(cksum_type);
837 repbody->oa.o_valid = OBD_MD_FLCKSUM | OBD_MD_FLFLAGS;
838 repbody->oa.o_cksum = ost_checksum_bulk(desc, OST_READ,cksum_type);
839 CDEBUG(D_PAGE, "checksum at read origin: %x\n",
840 repbody->oa.o_cksum);
842 repbody->oa.o_valid = 0;
844 /* We're finishing using body->oa as an input variable */
846 /* Check if client was evicted while we were doing i/o before touching
849 if (likely(!CFS_FAIL_PRECHECK(OBD_FAIL_PTLRPC_CLIENT_BULK_CB2)))
850 rc = target_bulk_io(exp, desc, &lwi);
855 /* Must commit after prep above in all cases */
856 rc = obd_commitrw(req->rq_svc_thread->t_env, OBD_BRW_READ, exp,
857 &repbody->oa, 1, ioo, remote_nb, npages, local_nb,
861 ost_drop_id(exp, &repbody->oa);
864 ost_brw_lock_put(LCK_PR, ioo, remote_nb, &lockh);
868 if (desc && !CFS_FAIL_PRECHECK(OBD_FAIL_PTLRPC_CLIENT_BULK_CB2))
869 ptlrpc_free_bulk_nopin(desc);
873 req->rq_status = nob;
874 ptlrpc_lprocfs_brw(req, nob);
875 target_committed_to_req(req);
877 } else if (!no_reply) {
878 /* Only reply if there was no comms problem with bulk */
879 target_committed_to_req(req);
883 /* reply out callback would free */
884 ptlrpc_req_drop_rs(req);
885 LCONSOLE_WARN("%s: Bulk IO read error with %s (at %s), "
886 "client will retry: rc %d\n",
887 exp->exp_obd->obd_name,
888 obd_uuid2str(&exp->exp_client_uuid),
889 obd_export_nid2str(exp), rc);
891 /* send a bulk after reply to simulate a network delay or reordering
893 if (unlikely(CFS_FAIL_PRECHECK(OBD_FAIL_PTLRPC_CLIENT_BULK_CB2))) {
895 struct l_wait_info lwi1;
897 CDEBUG(D_INFO, "reorder BULK\n");
898 cfs_waitq_init(&waitq);
900 lwi1 = LWI_TIMEOUT_INTR(cfs_time_seconds(3), NULL, NULL, NULL);
901 l_wait_event(waitq, 0, &lwi1);
902 rc = target_bulk_io(exp, desc, &lwi);
903 ptlrpc_free_bulk_nopin(desc);
909 static int ost_brw_write(struct ptlrpc_request *req, struct obd_trans_info *oti)
911 struct ptlrpc_bulk_desc *desc = NULL;
912 struct obd_export *exp = req->rq_export;
913 struct niobuf_remote *remote_nb;
914 struct niobuf_local *local_nb;
915 struct obd_ioobj *ioo;
916 struct ost_body *body, *repbody;
917 struct l_wait_info lwi;
918 struct lustre_handle lockh = {0};
919 struct lustre_capa *capa = NULL;
921 int objcount, niocount, npages;
923 obd_count client_cksum = 0, server_cksum = 0;
924 cksum_type_t cksum_type = OBD_CKSUM_CRC32;
925 int no_reply = 0, mmap = 0;
926 __u32 o_uid = 0, o_gid = 0;
927 struct ost_thread_local_cache *tls;
930 req->rq_bulk_write = 1;
932 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_WRITE_BULK))
933 GOTO(out, rc = -EIO);
934 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_WRITE_BULK2))
935 GOTO(out, rc = -EFAULT);
937 /* pause before transaction has been started */
938 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_BULK, (obd_timeout + 1) / 4);
940 /* ost_body, ioobj & noibuf_remote are verified and swabbed in
941 * ost_rw_hpreq_check(). */
942 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
944 GOTO(out, rc = -EFAULT);
946 objcount = req_capsule_get_size(&req->rq_pill, &RMF_OBD_IOOBJ,
947 RCL_CLIENT) / sizeof(*ioo);
948 ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
950 GOTO(out, rc = -EFAULT);
952 rc = ost_validate_obdo(exp, &body->oa, ioo);
956 for (niocount = i = 0; i < objcount; i++)
957 niocount += ioo[i].ioo_bufcnt;
960 * It'd be nice to have a capsule function to indicate how many elements
961 * there were in a buffer for an RMF that's declared to be an array.
962 * It's easy enough to compute the number of elements here though.
964 remote_nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
965 if (remote_nb == NULL || niocount != (req_capsule_get_size(&req->rq_pill,
966 &RMF_NIOBUF_REMOTE, RCL_CLIENT) / sizeof(*remote_nb)))
967 GOTO(out, rc = -EFAULT);
969 if ((remote_nb[0].flags & OBD_BRW_MEMALLOC) &&
970 (exp->exp_connection->c_peer.nid == exp->exp_connection->c_self))
971 cfs_memory_pressure_set();
973 if (body->oa.o_valid & OBD_MD_FLOSSCAPA) {
974 capa = req_capsule_client_get(&req->rq_pill, &RMF_CAPA1);
976 CERROR("Missing capability for OST BRW WRITE");
977 GOTO(out, rc = -EFAULT);
981 req_capsule_set_size(&req->rq_pill, &RMF_RCS, RCL_SERVER,
982 niocount * sizeof(*rcs));
983 rc = req_capsule_server_pack(&req->rq_pill);
986 CFS_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_PACK, cfs_fail_val);
987 rcs = req_capsule_server_get(&req->rq_pill, &RMF_RCS);
989 tls = ost_tls_get(req);
991 GOTO(out_bulk, rc = -ENOMEM);
992 local_nb = tls->local;
994 rc = ost_brw_lock_get(LCK_PW, exp, ioo, remote_nb, &lockh);
999 * If getting the lock took more time than
1000 * client was willing to wait, drop it. b=11330
1002 if (cfs_time_current_sec() > req->rq_deadline ||
1003 OBD_FAIL_CHECK(OBD_FAIL_OST_DROP_REQ)) {
1005 CERROR("Dropping timed-out write from %s because locking "
1006 "object "LPX64" took %ld seconds (limit was %ld).\n",
1007 libcfs_id2str(req->rq_peer), ioo->ioo_id,
1008 cfs_time_current_sec() - req->rq_arrival_time.tv_sec,
1009 req->rq_deadline - req->rq_arrival_time.tv_sec);
1010 GOTO(out_lock, rc = -ETIMEDOUT);
1013 /* obd_preprw clobbers oa->valid, so save what we need */
1014 if (body->oa.o_valid & OBD_MD_FLCKSUM) {
1015 client_cksum = body->oa.o_cksum;
1016 if (body->oa.o_valid & OBD_MD_FLFLAGS)
1017 cksum_type = cksum_type_unpack(body->oa.o_flags);
1019 if (body->oa.o_valid & OBD_MD_FLFLAGS && body->oa.o_flags & OBD_FL_MMAP)
1022 /* Because we already sync grant info with client when reconnect,
1023 * grant info will be cleared for resent req, then fed_grant and
1024 * total_grant will not be modified in following preprw_write */
1025 if (lustre_msg_get_flags(req->rq_reqmsg) & (MSG_RESENT | MSG_REPLAY)) {
1026 DEBUG_REQ(D_CACHE, req, "clear resent/replay req grant info");
1027 body->oa.o_valid &= ~OBD_MD_FLGRANT;
1030 if (exp_connect_rmtclient(exp)) {
1031 o_uid = body->oa.o_uid;
1032 o_gid = body->oa.o_gid;
1035 repbody = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY);
1036 memcpy(&repbody->oa, &body->oa, sizeof(repbody->oa));
1038 npages = OST_THREAD_POOL_SIZE;
1039 rc = obd_preprw(req->rq_svc_thread->t_env, OBD_BRW_WRITE, exp,
1040 &repbody->oa, objcount, ioo, remote_nb, &npages,
1041 local_nb, oti, capa);
1045 desc = ptlrpc_prep_bulk_exp(req, npages,
1046 BULK_GET_SINK, OST_BULK_PORTAL);
1048 GOTO(skip_transfer, rc = -ENOMEM);
1050 /* NB Having prepped, we must commit... */
1052 for (i = 0; i < npages; i++)
1053 ptlrpc_prep_bulk_page_nopin(desc, local_nb[i].page,
1054 local_nb[i].lnb_page_offset,
1057 rc = sptlrpc_svc_prep_bulk(req, desc);
1061 rc = target_bulk_io(exp, desc, &lwi);
1065 if (client_cksum != 0 && rc == 0) {
1066 static int cksum_counter;
1067 repbody->oa.o_valid |= OBD_MD_FLCKSUM | OBD_MD_FLFLAGS;
1068 repbody->oa.o_flags &= ~OBD_FL_CKSUM_ALL;
1069 repbody->oa.o_flags |= cksum_type_pack(cksum_type);
1070 server_cksum = ost_checksum_bulk(desc, OST_WRITE, cksum_type);
1071 repbody->oa.o_cksum = server_cksum;
1073 if (unlikely(client_cksum != server_cksum)) {
1074 CDEBUG_LIMIT(mmap ? D_INFO : D_ERROR,
1075 "client csum %x, server csum %x\n",
1076 client_cksum, server_cksum);
1078 } else if ((cksum_counter & (-cksum_counter)) == cksum_counter){
1079 CDEBUG(D_INFO, "Checksum %u from %s OK: %x\n",
1080 cksum_counter, libcfs_id2str(req->rq_peer),
1085 /* Must commit after prep above in all cases */
1086 rc = obd_commitrw(req->rq_svc_thread->t_env, OBD_BRW_WRITE, exp,
1087 &repbody->oa, objcount, ioo, remote_nb, npages,
1089 if (rc == -ENOTCONN)
1090 /* quota acquire process has been given up because
1091 * either the client has been evicted or the client
1092 * has timed out the request already */
1095 if (exp_connect_rmtclient(exp)) {
1096 repbody->oa.o_uid = o_uid;
1097 repbody->oa.o_gid = o_gid;
1101 * Disable sending mtime back to the client. If the client locked the
1102 * whole object, then it has already updated the mtime on its side,
1103 * otherwise it will have to glimpse anyway (see bug 21489, comment 32)
1105 repbody->oa.o_valid &= ~(OBD_MD_FLMTIME | OBD_MD_FLATIME);
1107 if (unlikely(client_cksum != server_cksum && rc == 0 && !mmap)) {
1108 int new_cksum = ost_checksum_bulk(desc, OST_WRITE, cksum_type);
1113 if (new_cksum == server_cksum)
1114 msg = "changed in transit before arrival at OST";
1115 else if (new_cksum == client_cksum)
1116 msg = "initial checksum before message complete";
1118 msg = "changed in transit AND after initial checksum";
1120 if (req->rq_peer.nid == desc->bd_sender) {
1124 router = libcfs_nid2str(desc->bd_sender);
1127 LCONSOLE_ERROR_MSG(0x168, "%s: BAD WRITE CHECKSUM: %s from "
1128 "%s%s%s inode "DFID" object "
1129 LPU64"/"LPU64" extent ["LPU64"-"LPU64"]\n",
1130 exp->exp_obd->obd_name, msg,
1131 libcfs_id2str(req->rq_peer),
1133 body->oa.o_valid & OBD_MD_FLFID ?
1134 body->oa.o_parent_seq : (__u64)0,
1135 body->oa.o_valid & OBD_MD_FLFID ?
1136 body->oa.o_parent_oid : 0,
1137 body->oa.o_valid & OBD_MD_FLFID ?
1138 body->oa.o_parent_ver : 0,
1140 body->oa.o_valid & OBD_MD_FLGROUP ?
1141 body->oa.o_seq : (__u64)0,
1142 local_nb[0].lnb_file_offset,
1143 local_nb[npages-1].lnb_file_offset +
1144 local_nb[npages-1].len - 1 );
1145 CERROR("client csum %x, original server csum %x, "
1146 "server csum now %x\n",
1147 client_cksum, server_cksum, new_cksum);
1153 /* set per-requested niobuf return codes */
1154 for (i = j = 0; i < niocount; i++) {
1155 int len = remote_nb[i].len;
1160 LASSERT(j < npages);
1161 if (local_nb[j].rc < 0)
1162 rcs[i] = local_nb[j].rc;
1163 len -= local_nb[j].len;
1168 LASSERT(j == npages);
1169 ptlrpc_lprocfs_brw(req, nob);
1173 ost_brw_lock_put(LCK_PW, ioo, remote_nb, &lockh);
1178 ptlrpc_free_bulk_nopin(desc);
1181 oti_to_request(oti, req);
1182 target_committed_to_req(req);
1183 rc = ptlrpc_reply(req);
1184 } else if (!no_reply) {
1185 /* Only reply if there was no comms problem with bulk */
1186 target_committed_to_req(req);
1187 req->rq_status = rc;
1190 /* reply out callback would free */
1191 ptlrpc_req_drop_rs(req);
1192 LCONSOLE_WARN("%s: Bulk IO write error with %s (at %s), "
1193 "client will retry: rc %d\n",
1194 exp->exp_obd->obd_name,
1195 obd_uuid2str(&exp->exp_client_uuid),
1196 obd_export_nid2str(exp), rc);
1198 cfs_memory_pressure_clr();
1203 * Implementation of OST_SET_INFO.
1205 * OST_SET_INFO is like ioctl(): heavily overloaded. Specifically, it takes a
1206 * "key" and a value RPC buffers as arguments, with the value's contents
1207 * interpreted according to the key.
1209 * Value types that need swabbing have swabbing done explicitly, either here or
1210 * in functions called from here. This should be corrected: all swabbing should
1211 * be done in the capsule abstraction, as that will then allow us to move
1212 * swabbing exclusively to the client without having to modify server code
1213 * outside the capsule abstraction's implementation itself. To correct this
1214 * will require minor changes to the capsule abstraction; see the comments for
1215 * req_capsule_extend() in layout.c.
1217 static int ost_set_info(struct obd_export *exp, struct ptlrpc_request *req)
1219 struct ost_body *body = NULL, *repbody;
1220 char *key, *val = NULL;
1221 int keylen, vallen, rc = 0;
1222 int is_grant_shrink = 0;
1225 key = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
1227 DEBUG_REQ(D_HA, req, "no set_info key");
1230 keylen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_KEY,
1233 vallen = req_capsule_get_size(&req->rq_pill, &RMF_SETINFO_VAL,
1236 if ((is_grant_shrink = KEY_IS(KEY_GRANT_SHRINK)))
1237 /* In this case the value is actually an RMF_OST_BODY, so we
1238 * transmutate the type of this PTLRPC */
1239 req_capsule_extend(&req->rq_pill, &RQF_OST_SET_GRANT_INFO);
1241 rc = req_capsule_server_pack(&req->rq_pill);
1246 if (is_grant_shrink) {
1247 body = req_capsule_client_get(&req->rq_pill,
1252 repbody = req_capsule_server_get(&req->rq_pill,
1254 memcpy(repbody, body, sizeof(*body));
1255 val = (char*)repbody;
1257 val = req_capsule_client_get(&req->rq_pill,
1262 if (KEY_IS(KEY_EVICT_BY_NID)) {
1264 obd_export_evict_by_nid(exp->exp_obd, val);
1266 } else if (KEY_IS(KEY_MDS_CONN) && ptlrpc_req_need_swab(req)) {
1267 if (vallen < sizeof(__u32))
1269 __swab32s((__u32 *)val);
1272 /* OBD will also check if KEY_IS(KEY_GRANT_SHRINK), and will cast val to
1273 * a struct ost_body * value */
1274 rc = obd_set_info_async(req->rq_svc_thread->t_env, exp, keylen,
1275 key, vallen, val, NULL);
1277 lustre_msg_set_status(req->rq_repmsg, 0);
1281 static int ost_get_info(struct obd_export *exp, struct ptlrpc_request *req)
1284 int keylen, replylen, rc = 0;
1285 struct req_capsule *pill = &req->rq_pill;
1288 /* this common part for get_info rpc */
1289 key = req_capsule_client_get(pill, &RMF_SETINFO_KEY);
1291 DEBUG_REQ(D_HA, req, "no get_info key");
1294 keylen = req_capsule_get_size(pill, &RMF_SETINFO_KEY, RCL_CLIENT);
1296 if (KEY_IS(KEY_FIEMAP)) {
1297 struct ll_fiemap_info_key *fm_key = key;
1300 rc = ost_validate_obdo(exp, &fm_key->oa, NULL);
1305 rc = obd_get_info(req->rq_svc_thread->t_env, exp, keylen, key,
1306 &replylen, NULL, NULL);
1310 req_capsule_set_size(pill, &RMF_GENERIC_DATA,
1311 RCL_SERVER, replylen);
1313 rc = req_capsule_server_pack(pill);
1317 reply = req_capsule_server_get(pill, &RMF_GENERIC_DATA);
1321 /* call again to fill in the reply buffer */
1322 rc = obd_get_info(req->rq_svc_thread->t_env, exp, keylen, key,
1323 &replylen, reply, NULL);
1325 lustre_msg_set_status(req->rq_repmsg, 0);
1329 static int ost_handle_quotactl(struct ptlrpc_request *req)
1331 struct obd_quotactl *oqctl, *repoqc;
1335 oqctl = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
1337 GOTO(out, rc = -EPROTO);
1339 rc = req_capsule_server_pack(&req->rq_pill);
1343 repoqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
1344 req->rq_status = obd_quotactl(req->rq_export, oqctl);
1351 static int ost_handle_quotacheck(struct ptlrpc_request *req)
1353 struct obd_quotactl *oqctl;
1357 oqctl = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL);
1361 rc = req_capsule_server_pack(&req->rq_pill);
1365 /* deprecated, not used any more */
1366 req->rq_status = -EOPNOTSUPP;
1367 RETURN(-EOPNOTSUPP);
1370 static int ost_llog_handle_connect(struct obd_export *exp,
1371 struct ptlrpc_request *req)
1373 struct llogd_conn_body *body;
1377 body = req_capsule_client_get(&req->rq_pill, &RMF_LLOGD_CONN_BODY);
1378 rc = obd_llog_connect(exp, body);
1382 #define ost_init_sec_none(reply, exp) \
1384 reply->ocd_connect_flags &= ~(OBD_CONNECT_RMT_CLIENT | \
1385 OBD_CONNECT_RMT_CLIENT_FORCE | \
1386 OBD_CONNECT_OSS_CAPA); \
1387 cfs_spin_lock(&exp->exp_lock); \
1388 exp->exp_connect_flags = reply->ocd_connect_flags; \
1389 cfs_spin_unlock(&exp->exp_lock); \
1392 static int ost_init_sec_level(struct ptlrpc_request *req)
1394 struct obd_export *exp = req->rq_export;
1395 struct req_capsule *pill = &req->rq_pill;
1396 struct obd_device *obd = exp->exp_obd;
1397 struct filter_obd *filter = &obd->u.filter;
1398 char *client = libcfs_nid2str(req->rq_peer.nid);
1399 struct obd_connect_data *data, *reply;
1403 data = req_capsule_client_get(pill, &RMF_CONNECT_DATA);
1404 reply = req_capsule_server_get(pill, &RMF_CONNECT_DATA);
1405 if (data == NULL || reply == NULL)
1408 /* connection from MDT is always trusted */
1409 if (req->rq_auth_usr_mdt) {
1410 ost_init_sec_none(reply, exp);
1414 /* no GSS support case */
1415 if (!req->rq_auth_gss) {
1416 if (filter->fo_sec_level > LUSTRE_SEC_NONE) {
1417 CWARN("client %s -> target %s does not user GSS, "
1418 "can not run under security level %d.\n",
1419 client, obd->obd_name, filter->fo_sec_level);
1422 ost_init_sec_none(reply, exp);
1427 /* old version case */
1428 if (unlikely(!(data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT) ||
1429 !(data->ocd_connect_flags & OBD_CONNECT_OSS_CAPA))) {
1430 if (filter->fo_sec_level > LUSTRE_SEC_NONE) {
1431 CWARN("client %s -> target %s uses old version, "
1432 "can not run under security level %d.\n",
1433 client, obd->obd_name, filter->fo_sec_level);
1436 CWARN("client %s -> target %s uses old version, "
1437 "run under security level %d.\n",
1438 client, obd->obd_name, filter->fo_sec_level);
1439 ost_init_sec_none(reply, exp);
1444 remote = data->ocd_connect_flags & OBD_CONNECT_RMT_CLIENT_FORCE;
1446 if (!req->rq_auth_remote)
1447 CDEBUG(D_SEC, "client (local realm) %s -> target %s "
1448 "asked to be remote.\n", client, obd->obd_name);
1449 } else if (req->rq_auth_remote) {
1451 CDEBUG(D_SEC, "client (remote realm) %s -> target %s is set "
1452 "as remote by default.\n", client, obd->obd_name);
1456 if (!filter->fo_fl_oss_capa) {
1457 CDEBUG(D_SEC, "client %s -> target %s is set as remote,"
1458 " but OSS capabilities are not enabled: %d.\n",
1459 client, obd->obd_name, filter->fo_fl_oss_capa);
1464 switch (filter->fo_sec_level) {
1465 case LUSTRE_SEC_NONE:
1467 ost_init_sec_none(reply, exp);
1470 CDEBUG(D_SEC, "client %s -> target %s is set as remote, "
1471 "can not run under security level %d.\n",
1472 client, obd->obd_name, filter->fo_sec_level);
1475 case LUSTRE_SEC_REMOTE:
1477 ost_init_sec_none(reply, exp);
1479 case LUSTRE_SEC_ALL:
1481 reply->ocd_connect_flags &= ~(OBD_CONNECT_RMT_CLIENT |
1482 OBD_CONNECT_RMT_CLIENT_FORCE);
1483 if (!filter->fo_fl_oss_capa)
1484 reply->ocd_connect_flags &= ~OBD_CONNECT_OSS_CAPA;
1486 cfs_spin_lock(&exp->exp_lock);
1487 exp->exp_connect_flags = reply->ocd_connect_flags;
1488 cfs_spin_unlock(&exp->exp_lock);
1500 * this should be done in filter_connect()/filter_reconnect(), but
1501 * we can't obtain information like NID, which stored in incoming
1502 * request, thus can't decide what flavor to use. so we do it here.
1504 * This hack should be removed after the OST stack be rewritten, just
1505 * like what we are doing in mdt_obd_connect()/mdt_obd_reconnect().
1507 static int ost_connect_check_sptlrpc(struct ptlrpc_request *req)
1509 struct obd_export *exp = req->rq_export;
1510 struct filter_obd *filter = &exp->exp_obd->u.filter;
1511 struct sptlrpc_flavor flvr;
1514 if (unlikely(strcmp(exp->exp_obd->obd_type->typ_name,
1515 LUSTRE_ECHO_NAME) == 0)) {
1516 exp->exp_flvr.sf_rpc = SPTLRPC_FLVR_ANY;
1520 if (exp->exp_flvr.sf_rpc == SPTLRPC_FLVR_INVALID) {
1521 cfs_read_lock(&filter->fo_sptlrpc_lock);
1522 sptlrpc_target_choose_flavor(&filter->fo_sptlrpc_rset,
1526 cfs_read_unlock(&filter->fo_sptlrpc_lock);
1528 cfs_spin_lock(&exp->exp_lock);
1530 exp->exp_sp_peer = req->rq_sp_from;
1531 exp->exp_flvr = flvr;
1533 if (exp->exp_flvr.sf_rpc != SPTLRPC_FLVR_ANY &&
1534 exp->exp_flvr.sf_rpc != req->rq_flvr.sf_rpc) {
1535 CERROR("unauthorized rpc flavor %x from %s, "
1536 "expect %x\n", req->rq_flvr.sf_rpc,
1537 libcfs_nid2str(req->rq_peer.nid),
1538 exp->exp_flvr.sf_rpc);
1542 cfs_spin_unlock(&exp->exp_lock);
1544 if (exp->exp_sp_peer != req->rq_sp_from) {
1545 CERROR("RPC source %s doesn't match %s\n",
1546 sptlrpc_part2name(req->rq_sp_from),
1547 sptlrpc_part2name(exp->exp_sp_peer));
1550 rc = sptlrpc_target_export_check(exp, req);
1557 /* Ensure that data and metadata are synced to the disk when lock is cancelled
1559 int ost_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
1560 void *data, int flag)
1563 __u32 sync_lock_cancel = 0;
1564 __u32 len = sizeof(sync_lock_cancel);
1569 rc = lu_env_init(&env, LCT_DT_THREAD);
1570 if (unlikely(rc != 0))
1573 rc = obd_get_info(&env, lock->l_export, sizeof(KEY_SYNC_LOCK_CANCEL),
1574 KEY_SYNC_LOCK_CANCEL, &len, &sync_lock_cancel, NULL);
1575 if (rc == 0 && flag == LDLM_CB_CANCELING &&
1576 (lock->l_granted_mode & (LCK_PW|LCK_GROUP)) &&
1577 (sync_lock_cancel == ALWAYS_SYNC_ON_CANCEL ||
1578 (sync_lock_cancel == BLOCKING_SYNC_ON_CANCEL &&
1579 lock->l_flags & LDLM_FL_CBPENDING))) {
1580 struct obd_info *oinfo;
1584 OBD_ALLOC_PTR(oinfo);
1586 GOTO(out_env, rc = -ENOMEM);
1589 OBD_FREE_PTR(oinfo);
1590 GOTO(out_env, rc = -ENOMEM);
1592 oa->o_id = lock->l_resource->lr_name.name[0];
1593 oa->o_seq = lock->l_resource->lr_name.name[1];
1594 oa->o_valid = OBD_MD_FLID|OBD_MD_FLGROUP;
1596 oinfo->oi_capa = BYPASS_CAPA;
1598 rc = obd_sync(&env, lock->l_export, oinfo,
1599 lock->l_policy_data.l_extent.start,
1600 lock->l_policy_data.l_extent.end, NULL);
1602 CERROR("Error %d syncing data on lock cancel\n", rc);
1605 OBD_FREE_PTR(oinfo);
1608 rc = ldlm_server_blocking_ast(lock, desc, data, flag);
1614 static int ost_filter_recovery_request(struct ptlrpc_request *req,
1615 struct obd_device *obd, int *process)
1617 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
1618 case OST_CONNECT: /* This will never get here, but for completeness. */
1619 case OST_DISCONNECT:
1630 case OBD_LOG_CANCEL:
1632 *process = target_queue_recovery_request(req, obd);
1636 DEBUG_REQ(D_WARNING, req, "not permitted during recovery");
1642 int ost_msg_check_version(struct lustre_msg *msg)
1646 switch(lustre_msg_get_opc(msg)) {
1648 case OST_DISCONNECT:
1651 case SEC_CTX_INIT_CONT:
1653 rc = lustre_msg_check_version(msg, LUSTRE_OBD_VERSION);
1655 CERROR("bad opc %u version %08x, expecting %08x\n",
1656 lustre_msg_get_opc(msg),
1657 lustre_msg_get_version(msg),
1658 LUSTRE_OBD_VERSION);
1671 case OST_QUOTACHECK:
1673 rc = lustre_msg_check_version(msg, LUSTRE_OST_VERSION);
1675 CERROR("bad opc %u version %08x, expecting %08x\n",
1676 lustre_msg_get_opc(msg),
1677 lustre_msg_get_version(msg),
1678 LUSTRE_OST_VERSION);
1683 case LDLM_BL_CALLBACK:
1684 case LDLM_CP_CALLBACK:
1685 rc = lustre_msg_check_version(msg, LUSTRE_DLM_VERSION);
1687 CERROR("bad opc %u version %08x, expecting %08x\n",
1688 lustre_msg_get_opc(msg),
1689 lustre_msg_get_version(msg),
1690 LUSTRE_DLM_VERSION);
1692 case LLOG_ORIGIN_CONNECT:
1693 case OBD_LOG_CANCEL:
1694 rc = lustre_msg_check_version(msg, LUSTRE_LOG_VERSION);
1696 CERROR("bad opc %u version %08x, expecting %08x\n",
1697 lustre_msg_get_opc(msg),
1698 lustre_msg_get_version(msg),
1699 LUSTRE_LOG_VERSION);
1701 case OST_QUOTA_ADJUST_QUNIT:
1703 CERROR("Quota adjust is deprecated as of 2.4.0\n");
1706 CERROR("Unexpected opcode %d\n", lustre_msg_get_opc(msg));
1712 struct ost_prolong_data {
1713 struct ptlrpc_request *opd_req;
1714 struct obd_export *opd_exp;
1715 struct obdo *opd_oa;
1716 struct ldlm_res_id opd_resid;
1717 struct ldlm_extent opd_extent;
1718 ldlm_mode_t opd_mode;
1719 unsigned int opd_locks;
1723 /* prolong locks for the current service time of the corresponding
1724 * portal (= OST_IO_PORTAL)
1726 static inline int prolong_timeout(struct ptlrpc_request *req)
1728 struct ptlrpc_service_part *svcpt = req->rq_rqbd->rqbd_svcpt;
1731 return obd_timeout / 2;
1733 return max(at_est2timeout(at_get(&svcpt->scp_at_estimate)),
1737 static void ost_prolong_lock_one(struct ost_prolong_data *opd,
1738 struct ldlm_lock *lock)
1740 LASSERT(lock->l_export == opd->opd_exp);
1742 if (lock->l_destroyed) /* lock already cancelled */
1745 /* XXX: never try to grab resource lock here because we're inside
1746 * exp_bl_list_lock; in ldlm_lockd.c to handle waiting list we take
1747 * res lock and then exp_bl_list_lock. */
1749 if (!(lock->l_flags & LDLM_FL_AST_SENT))
1750 /* ignore locks not being cancelled */
1754 "refreshed for req x"LPU64" ext("LPU64"->"LPU64") to %ds.\n",
1755 opd->opd_req->rq_xid, opd->opd_extent.start,
1756 opd->opd_extent.end, opd->opd_timeout);
1758 /* OK. this is a possible lock the user holds doing I/O
1759 * let's refresh eviction timer for it */
1760 ldlm_refresh_waiting_lock(lock, opd->opd_timeout);
1764 static void ost_prolong_locks(struct ost_prolong_data *data)
1766 struct obd_export *exp = data->opd_exp;
1767 struct obdo *oa = data->opd_oa;
1768 struct ldlm_lock *lock;
1771 if (oa->o_valid & OBD_MD_FLHANDLE) {
1772 /* mostly a request should be covered by only one lock, try
1774 lock = ldlm_handle2lock(&oa->o_handle);
1776 /* Fast path to check if the lock covers the whole IO
1777 * region exclusively. */
1778 if (lock->l_granted_mode == LCK_PW &&
1779 ldlm_extent_contain(&lock->l_policy_data.l_extent,
1780 &data->opd_extent)) {
1782 ost_prolong_lock_one(data, lock);
1783 LDLM_LOCK_PUT(lock);
1786 LDLM_LOCK_PUT(lock);
1791 cfs_spin_lock_bh(&exp->exp_bl_list_lock);
1792 cfs_list_for_each_entry(lock, &exp->exp_bl_list, l_exp_list) {
1793 LASSERT(lock->l_flags & LDLM_FL_AST_SENT);
1794 LASSERT(lock->l_resource->lr_type == LDLM_EXTENT);
1796 if (!ldlm_res_eq(&data->opd_resid, &lock->l_resource->lr_name))
1799 if (!ldlm_extent_overlap(&lock->l_policy_data.l_extent,
1803 ost_prolong_lock_one(data, lock);
1805 cfs_spin_unlock_bh(&exp->exp_bl_list_lock);
1811 * Returns 1 if the given PTLRPC matches the given LDLM locks, or 0 if it does
1814 static int ost_rw_hpreq_lock_match(struct ptlrpc_request *req,
1815 struct ldlm_lock *lock)
1817 struct niobuf_remote *nb;
1818 struct obd_ioobj *ioo;
1820 struct ldlm_extent ext;
1823 opc = lustre_msg_get_opc(req->rq_reqmsg);
1824 LASSERT(opc == OST_READ || opc == OST_WRITE);
1826 ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
1827 LASSERT(ioo != NULL);
1829 nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
1830 LASSERT(nb != NULL);
1832 ext.start = nb->offset;
1833 nb += ioo->ioo_bufcnt - 1;
1834 ext.end = nb->offset + nb->len - 1;
1836 LASSERT(lock->l_resource != NULL);
1837 if (!osc_res_name_eq(ioo->ioo_id, ioo->ioo_seq,
1838 &lock->l_resource->lr_name))
1842 if (opc == OST_READ)
1844 if (!(lock->l_granted_mode & mode))
1847 RETURN(ldlm_extent_overlap(&lock->l_policy_data.l_extent, &ext));
1851 * High-priority queue request check for whether the given PTLRPC request (\a
1852 * req) is blocking an LDLM lock cancel.
1854 * Returns 1 if the given given PTLRPC request (\a req) is blocking an LDLM lock
1855 * cancel, 0 if it is not, and -EFAULT if the request is malformed.
1857 * Only OST_READs, OST_WRITEs and OST_PUNCHes go on the h-p RPC queue. This
1858 * function looks only at OST_READs and OST_WRITEs.
1860 static int ost_rw_hpreq_check(struct ptlrpc_request *req)
1862 struct obd_device *obd = req->rq_export->exp_obd;
1863 struct ost_body *body;
1864 struct obd_ioobj *ioo;
1865 struct niobuf_remote *nb;
1866 struct ost_prolong_data opd = { 0 };
1871 * Use LASSERT to do sanity check because malformed RPCs should have
1872 * been filtered out in ost_hpreq_handler().
1874 opc = lustre_msg_get_opc(req->rq_reqmsg);
1875 LASSERT(opc == OST_READ || opc == OST_WRITE);
1877 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
1878 LASSERT(body != NULL);
1880 ioo = req_capsule_client_get(&req->rq_pill, &RMF_OBD_IOOBJ);
1881 LASSERT(ioo != NULL);
1883 nb = req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE);
1884 LASSERT(nb != NULL);
1885 LASSERT(!(nb->flags & OBD_BRW_SRVLOCK));
1887 osc_build_res_name(ioo->ioo_id, ioo->ioo_seq, &opd.opd_resid);
1891 if (opc == OST_READ)
1893 opd.opd_mode = mode;
1894 opd.opd_exp = req->rq_export;
1895 opd.opd_oa = &body->oa;
1896 opd.opd_extent.start = nb->offset;
1897 nb += ioo->ioo_bufcnt - 1;
1898 opd.opd_extent.end = nb->offset + nb->len - 1;
1899 opd.opd_timeout = prolong_timeout(req);
1901 DEBUG_REQ(D_RPCTRACE, req,
1902 "%s %s: refresh rw locks: " LPU64"/"LPU64" ("LPU64"->"LPU64")\n",
1903 obd->obd_name, cfs_current()->comm,
1904 opd.opd_resid.name[0], opd.opd_resid.name[1],
1905 opd.opd_extent.start, opd.opd_extent.end);
1907 ost_prolong_locks(&opd);
1909 CDEBUG(D_DLMTRACE, "%s: refreshed %u locks timeout for req %p.\n",
1910 obd->obd_name, opd.opd_locks, req);
1912 RETURN(opd.opd_locks);
1915 static void ost_rw_hpreq_fini(struct ptlrpc_request *req)
1917 (void)ost_rw_hpreq_check(req);
1921 * Like ost_rw_hpreq_lock_match(), but for OST_PUNCH RPCs.
1923 static int ost_punch_hpreq_lock_match(struct ptlrpc_request *req,
1924 struct ldlm_lock *lock)
1926 struct ost_body *body;
1929 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
1930 LASSERT(body != NULL);
1932 if (body->oa.o_valid & OBD_MD_FLHANDLE &&
1933 body->oa.o_handle.cookie == lock->l_handle.h_cookie)
1940 * Like ost_rw_hpreq_check(), but for OST_PUNCH RPCs.
1942 static int ost_punch_hpreq_check(struct ptlrpc_request *req)
1944 struct obd_device *obd = req->rq_export->exp_obd;
1945 struct ost_body *body;
1947 struct ost_prolong_data opd = { 0 };
1951 body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY);
1952 LASSERT(body != NULL);
1955 LASSERT(!(oa->o_valid & OBD_MD_FLFLAGS) ||
1956 !(oa->o_flags & OBD_FL_SRVLOCK));
1959 end = start + oa->o_blocks;
1962 opd.opd_mode = LCK_PW;
1963 opd.opd_exp = req->rq_export;
1965 opd.opd_extent.start = start;
1966 opd.opd_extent.end = end;
1967 if (oa->o_blocks == OBD_OBJECT_EOF)
1968 opd.opd_extent.end = OBD_OBJECT_EOF;
1969 opd.opd_timeout = prolong_timeout(req);
1971 osc_build_res_name(oa->o_id, oa->o_seq, &opd.opd_resid);
1974 "%s: refresh locks: "LPU64"/"LPU64" ("LPU64"->"LPU64")\n",
1976 opd.opd_resid.name[0], opd.opd_resid.name[1],
1977 opd.opd_extent.start, opd.opd_extent.end);
1979 ost_prolong_locks(&opd);
1981 CDEBUG(D_DLMTRACE, "%s: refreshed %u locks timeout for req %p.\n",
1982 obd->obd_name, opd.opd_locks, req);
1984 RETURN(opd.opd_locks > 0);
1987 static void ost_punch_hpreq_fini(struct ptlrpc_request *req)
1989 (void)ost_punch_hpreq_check(req);
1992 struct ptlrpc_hpreq_ops ost_hpreq_rw = {
1993 .hpreq_lock_match = ost_rw_hpreq_lock_match,
1994 .hpreq_check = ost_rw_hpreq_check,
1995 .hpreq_fini = ost_rw_hpreq_fini
1998 struct ptlrpc_hpreq_ops ost_hpreq_punch = {
1999 .hpreq_lock_match = ost_punch_hpreq_lock_match,
2000 .hpreq_check = ost_punch_hpreq_check,
2001 .hpreq_fini = ost_punch_hpreq_fini
2004 /** Assign high priority operations to the request if needed. */
2005 static int ost_io_hpreq_handler(struct ptlrpc_request *req)
2008 if (req->rq_export) {
2009 int opc = lustre_msg_get_opc(req->rq_reqmsg);
2010 struct ost_body *body;
2012 if (opc == OST_READ || opc == OST_WRITE) {
2013 struct niobuf_remote *nb;
2014 struct obd_ioobj *ioo;
2015 int objcount, niocount;
2019 /* RPCs on the H-P queue can be inspected before
2020 * ost_handler() initializes their pills, so we
2021 * initialize that here. Capsule initialization is
2022 * idempotent, as is setting the pill's format (provided
2023 * it doesn't change).
2025 req_capsule_init(&req->rq_pill, req, RCL_SERVER);
2026 if (opc == OST_READ)
2027 req_capsule_set(&req->rq_pill,
2030 req_capsule_set(&req->rq_pill,
2031 &RQF_OST_BRW_WRITE);
2033 body = req_capsule_client_get(&req->rq_pill,
2036 CERROR("Missing/short ost_body\n");
2040 objcount = req_capsule_get_size(&req->rq_pill,
2044 if (objcount == 0) {
2045 CERROR("Missing/short ioobj\n");
2049 CERROR("too many ioobjs (%d)\n", objcount);
2053 ioo = req_capsule_client_get(&req->rq_pill,
2056 CERROR("Missing/short ioobj\n");
2060 rc = ost_validate_obdo(req->rq_export, &body->oa, ioo);
2062 CERROR("invalid object ids\n");
2066 for (niocount = i = 0; i < objcount; i++) {
2067 if (ioo[i].ioo_bufcnt == 0) {
2068 CERROR("ioo[%d] has zero bufcnt\n", i);
2071 niocount += ioo[i].ioo_bufcnt;
2073 if (niocount > PTLRPC_MAX_BRW_PAGES) {
2074 DEBUG_REQ(D_RPCTRACE, req,
2075 "bulk has too many pages (%d)",
2080 nb = req_capsule_client_get(&req->rq_pill,
2081 &RMF_NIOBUF_REMOTE);
2083 CERROR("Missing/short niobuf\n");
2087 if (niocount == 0 || !(nb[0].flags & OBD_BRW_SRVLOCK))
2088 req->rq_ops = &ost_hpreq_rw;
2089 } else if (opc == OST_PUNCH) {
2090 req_capsule_init(&req->rq_pill, req, RCL_SERVER);
2091 req_capsule_set(&req->rq_pill, &RQF_OST_PUNCH);
2093 body = req_capsule_client_get(&req->rq_pill,
2096 CERROR("Missing/short ost_body\n");
2100 if (!(body->oa.o_valid & OBD_MD_FLFLAGS) ||
2101 !(body->oa.o_flags & OBD_FL_SRVLOCK))
2102 req->rq_ops = &ost_hpreq_punch;
2108 /* TODO: handle requests in a similar way as MDT: see mdt_handle_common() */
2109 int ost_handle(struct ptlrpc_request *req)
2111 struct obd_trans_info trans_info = { 0, };
2112 struct obd_trans_info *oti = &trans_info;
2113 int should_process, fail = OBD_FAIL_OST_ALL_REPLY_NET, rc = 0;
2114 struct obd_device *obd = NULL;
2117 /* OST module is kept between remounts, but the last reference
2118 * to specific module (say, osd or ofd) kills all related keys
2119 * from the environment. so we have to refill it until the root
2120 * cause is fixed properly */
2121 lu_env_refill(req->rq_svc_thread->t_env);
2123 LASSERT(current->journal_info == NULL);
2125 /* primordial rpcs don't affect server recovery */
2126 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
2128 case SEC_CTX_INIT_CONT:
2133 req_capsule_init(&req->rq_pill, req, RCL_SERVER);
2135 if (lustre_msg_get_opc(req->rq_reqmsg) != OST_CONNECT) {
2136 if (!class_connected_export(req->rq_export)) {
2137 CDEBUG(D_HA,"operation %d on unconnected OST from %s\n",
2138 lustre_msg_get_opc(req->rq_reqmsg),
2139 libcfs_id2str(req->rq_peer));
2140 req->rq_status = -ENOTCONN;
2141 GOTO(out, rc = -ENOTCONN);
2144 obd = req->rq_export->exp_obd;
2146 /* Check for aborted recovery. */
2147 if (obd->obd_recovering) {
2148 rc = ost_filter_recovery_request(req, obd,
2150 if (rc || !should_process)
2152 else if (should_process < 0) {
2153 req->rq_status = should_process;
2154 rc = ptlrpc_error(req);
2162 rc = ost_msg_check_version(req->rq_reqmsg);
2166 if (req && req->rq_reqmsg && req->rq_export &&
2167 (req->rq_export->exp_connect_flags & OBD_CONNECT_JOBSTATS))
2168 oti->oti_jobid = lustre_msg_get_jobid(req->rq_reqmsg);
2170 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
2172 CDEBUG(D_INODE, "connect\n");
2173 req_capsule_set(&req->rq_pill, &RQF_OST_CONNECT);
2174 if (OBD_FAIL_CHECK(OBD_FAIL_OST_CONNECT_NET))
2176 rc = target_handle_connect(req);
2177 if (OBD_FAIL_CHECK(OBD_FAIL_OST_CONNECT_NET2))
2180 rc = ost_init_sec_level(req);
2182 rc = ost_connect_check_sptlrpc(req);
2186 case OST_DISCONNECT:
2187 CDEBUG(D_INODE, "disconnect\n");
2188 req_capsule_set(&req->rq_pill, &RQF_OST_DISCONNECT);
2189 if (OBD_FAIL_CHECK(OBD_FAIL_OST_DISCONNECT_NET))
2191 rc = target_handle_disconnect(req);
2194 CDEBUG(D_INODE, "create\n");
2195 req_capsule_set(&req->rq_pill, &RQF_OST_CREATE);
2196 if (OBD_FAIL_CHECK(OBD_FAIL_OST_CREATE_NET))
2198 if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
2199 GOTO(out, rc = -EROFS);
2200 rc = ost_create(req->rq_export, req, oti);
2203 CDEBUG(D_INODE, "destroy\n");
2204 req_capsule_set(&req->rq_pill, &RQF_OST_DESTROY);
2205 if (OBD_FAIL_CHECK(OBD_FAIL_OST_DESTROY_NET))
2207 if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
2208 GOTO(out, rc = -EROFS);
2209 rc = ost_destroy(req->rq_export, req, oti);
2212 CDEBUG(D_INODE, "getattr\n");
2213 req_capsule_set(&req->rq_pill, &RQF_OST_GETATTR);
2214 if (OBD_FAIL_CHECK(OBD_FAIL_OST_GETATTR_NET))
2216 rc = ost_getattr(req->rq_export, req);
2219 CDEBUG(D_INODE, "setattr\n");
2220 req_capsule_set(&req->rq_pill, &RQF_OST_SETATTR);
2221 if (OBD_FAIL_CHECK(OBD_FAIL_OST_SETATTR_NET))
2223 rc = ost_setattr(req->rq_export, req, oti);
2226 req_capsule_set(&req->rq_pill, &RQF_OST_BRW_WRITE);
2227 CDEBUG(D_INODE, "write\n");
2228 /* req->rq_request_portal would be nice, if it was set */
2229 if (ptlrpc_req2svc(req)->srv_req_portal != OST_IO_PORTAL) {
2230 CERROR("%s: deny write request from %s to portal %u\n",
2231 req->rq_export->exp_obd->obd_name,
2232 obd_export_nid2str(req->rq_export),
2233 ptlrpc_req2svc(req)->srv_req_portal);
2234 GOTO(out, rc = -EPROTO);
2236 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_NET))
2238 if (OBD_FAIL_CHECK(OBD_FAIL_OST_ENOSPC))
2239 GOTO(out, rc = -ENOSPC);
2240 if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
2241 GOTO(out, rc = -EROFS);
2242 rc = ost_brw_write(req, oti);
2243 LASSERT(current->journal_info == NULL);
2244 /* ost_brw_write sends its own replies */
2247 req_capsule_set(&req->rq_pill, &RQF_OST_BRW_READ);
2248 CDEBUG(D_INODE, "read\n");
2249 /* req->rq_request_portal would be nice, if it was set */
2250 if (ptlrpc_req2svc(req)->srv_req_portal != OST_IO_PORTAL) {
2251 CERROR("%s: deny read request from %s to portal %u\n",
2252 req->rq_export->exp_obd->obd_name,
2253 obd_export_nid2str(req->rq_export),
2254 ptlrpc_req2svc(req)->srv_req_portal);
2255 GOTO(out, rc = -EPROTO);
2257 if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_NET))
2259 rc = ost_brw_read(req, oti);
2260 LASSERT(current->journal_info == NULL);
2261 /* ost_brw_read sends its own replies */
2264 CDEBUG(D_INODE, "punch\n");
2265 req_capsule_set(&req->rq_pill, &RQF_OST_PUNCH);
2266 if (OBD_FAIL_CHECK(OBD_FAIL_OST_PUNCH_NET))
2268 if (OBD_FAIL_CHECK(OBD_FAIL_OST_EROFS))
2269 GOTO(out, rc = -EROFS);
2270 rc = ost_punch(req->rq_export, req, oti);
2273 CDEBUG(D_INODE, "statfs\n");
2274 req_capsule_set(&req->rq_pill, &RQF_OST_STATFS);
2275 if (OBD_FAIL_CHECK(OBD_FAIL_OST_STATFS_NET))
2277 rc = ost_statfs(req);
2280 CDEBUG(D_INODE, "sync\n");
2281 req_capsule_set(&req->rq_pill, &RQF_OST_SYNC);
2282 if (OBD_FAIL_CHECK(OBD_FAIL_OST_SYNC_NET))
2284 rc = ost_sync(req->rq_export, req, oti);
2287 DEBUG_REQ(D_INODE, req, "set_info");
2288 req_capsule_set(&req->rq_pill, &RQF_OBD_SET_INFO);
2289 rc = ost_set_info(req->rq_export, req);
2292 DEBUG_REQ(D_INODE, req, "get_info");
2293 req_capsule_set(&req->rq_pill, &RQF_OST_GET_INFO_GENERIC);
2294 rc = ost_get_info(req->rq_export, req);
2296 case OST_QUOTACHECK:
2297 CDEBUG(D_INODE, "quotacheck\n");
2298 req_capsule_set(&req->rq_pill, &RQF_OST_QUOTACHECK);
2299 if (OBD_FAIL_CHECK(OBD_FAIL_OST_QUOTACHECK_NET))
2301 rc = ost_handle_quotacheck(req);
2304 CDEBUG(D_INODE, "quotactl\n");
2305 req_capsule_set(&req->rq_pill, &RQF_OST_QUOTACTL);
2306 if (OBD_FAIL_CHECK(OBD_FAIL_OST_QUOTACTL_NET))
2308 rc = ost_handle_quotactl(req);
2311 DEBUG_REQ(D_INODE, req, "ping");
2312 req_capsule_set(&req->rq_pill, &RQF_OBD_PING);
2313 rc = target_handle_ping(req);
2315 /* FIXME - just reply status */
2316 case LLOG_ORIGIN_CONNECT:
2317 DEBUG_REQ(D_INODE, req, "log connect");
2318 req_capsule_set(&req->rq_pill, &RQF_LLOG_ORIGIN_CONNECT);
2319 rc = ost_llog_handle_connect(req->rq_export, req);
2320 req->rq_status = rc;
2321 rc = req_capsule_server_pack(&req->rq_pill);
2324 RETURN(ptlrpc_reply(req));
2325 case OBD_LOG_CANCEL:
2326 CDEBUG(D_INODE, "log cancel\n");
2327 req_capsule_set(&req->rq_pill, &RQF_LOG_CANCEL);
2328 if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LOG_CANCEL_NET))
2330 rc = llog_origin_handle_cancel(req);
2331 if (OBD_FAIL_CHECK(OBD_FAIL_OBD_LOG_CANCEL_REP))
2333 req->rq_status = rc;
2334 rc = req_capsule_server_pack(&req->rq_pill);
2337 RETURN(ptlrpc_reply(req));
2339 CDEBUG(D_INODE, "enqueue\n");
2340 req_capsule_set(&req->rq_pill, &RQF_LDLM_ENQUEUE);
2341 if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_ENQUEUE_NET))
2343 rc = ldlm_handle_enqueue(req, ldlm_server_completion_ast,
2345 ldlm_server_glimpse_ast);
2346 fail = OBD_FAIL_OST_LDLM_REPLY_NET;
2349 CDEBUG(D_INODE, "convert\n");
2350 req_capsule_set(&req->rq_pill, &RQF_LDLM_CONVERT);
2351 if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CONVERT_NET))
2353 rc = ldlm_handle_convert(req);
2356 CDEBUG(D_INODE, "cancel\n");
2357 req_capsule_set(&req->rq_pill, &RQF_LDLM_CANCEL);
2358 if (OBD_FAIL_CHECK(OBD_FAIL_LDLM_CANCEL_NET))
2360 rc = ldlm_handle_cancel(req);
2362 case LDLM_BL_CALLBACK:
2363 case LDLM_CP_CALLBACK:
2364 CDEBUG(D_INODE, "callback\n");
2365 CERROR("callbacks should not happen on OST\n");
2368 CERROR("Unexpected opcode %d\n",
2369 lustre_msg_get_opc(req->rq_reqmsg));
2370 req->rq_status = -ENOTSUPP;
2371 rc = ptlrpc_error(req);
2375 LASSERT(current->journal_info == NULL);
2378 /* If we're DISCONNECTing, the export_data is already freed */
2379 if (!rc && lustre_msg_get_opc(req->rq_reqmsg) != OST_DISCONNECT)
2380 target_committed_to_req(req);
2384 oti_to_request(oti, req);
2386 target_send_reply(req, rc, fail);
2389 EXPORT_SYMBOL(ost_handle);
2392 * free per-thread pool created by ost_io_thread_init().
2394 static void ost_io_thread_done(struct ptlrpc_thread *thread)
2396 struct ost_thread_local_cache *tls; /* TLS stands for Thread-Local
2401 LASSERT(thread != NULL);
2404 * be prepared to handle partially-initialized pools (because this is
2405 * called from ost_io_thread_init() for cleanup.
2407 tls = thread->t_data;
2410 thread->t_data = NULL;
2416 * initialize per-thread page pool (bug 5137).
2418 static int ost_io_thread_init(struct ptlrpc_thread *thread)
2420 struct ost_thread_local_cache *tls;
2424 LASSERT(thread != NULL);
2425 LASSERT(thread->t_data == NULL);
2430 thread->t_data = tls;
2434 #define OST_WATCHDOG_TIMEOUT (obd_timeout * 1000)
2436 static struct cfs_cpt_table *ost_io_cptable;
2438 /* Sigh - really, this is an OSS, the _server_, not the _target_ */
2439 static int ost_setup(struct obd_device *obd, struct lustre_cfg* lcfg)
2441 static struct ptlrpc_service_conf svc_conf;
2442 struct ost_obd *ost = &obd->u.ost;
2443 struct lprocfs_static_vars lvars;
2448 rc = cfs_cleanup_group_info();
2452 lprocfs_ost_init_vars(&lvars);
2453 lprocfs_obd_setup(obd, lvars.obd_vars);
2455 cfs_mutex_init(&ost->ost_health_mutex);
2457 svc_conf = (typeof(svc_conf)) {
2458 .psc_name = LUSTRE_OSS_NAME,
2459 .psc_watchdog_factor = OSS_SERVICE_WATCHDOG_FACTOR,
2461 .bc_nbufs = OST_NBUFS,
2462 .bc_buf_size = OST_BUFSIZE,
2463 .bc_req_max_size = OST_MAXREQSIZE,
2464 .bc_rep_max_size = OST_MAXREPSIZE,
2465 .bc_req_portal = OST_REQUEST_PORTAL,
2466 .bc_rep_portal = OSC_REPLY_PORTAL,
2469 .tc_thr_name = "ll_ost",
2470 .tc_thr_factor = OSS_THR_FACTOR,
2471 .tc_nthrs_init = OSS_NTHRS_INIT,
2472 .tc_nthrs_base = OSS_NTHRS_BASE,
2473 .tc_nthrs_max = OSS_NTHRS_MAX,
2474 .tc_nthrs_user = oss_num_threads,
2475 .tc_cpu_affinity = 1,
2476 .tc_ctx_tags = LCT_DT_THREAD,
2479 .cc_pattern = oss_cpts,
2482 .so_req_handler = ost_handle,
2483 .so_req_printer = target_print_req,
2484 .so_hpreq_handler = ptlrpc_hpreq_handler,
2487 ost->ost_service = ptlrpc_register_service(&svc_conf,
2488 obd->obd_proc_entry);
2489 if (IS_ERR(ost->ost_service)) {
2490 rc = PTR_ERR(ost->ost_service);
2491 CERROR("failed to start service: %d\n", rc);
2492 GOTO(out_lprocfs, rc);
2495 memset(&svc_conf, 0, sizeof(svc_conf));
2496 svc_conf = (typeof(svc_conf)) {
2497 .psc_name = "ost_create",
2498 .psc_watchdog_factor = OSS_SERVICE_WATCHDOG_FACTOR,
2500 .bc_nbufs = OST_NBUFS,
2501 .bc_buf_size = OST_BUFSIZE,
2502 .bc_req_max_size = OST_MAXREQSIZE,
2503 .bc_rep_max_size = OST_MAXREPSIZE,
2504 .bc_req_portal = OST_CREATE_PORTAL,
2505 .bc_rep_portal = OSC_REPLY_PORTAL,
2508 .tc_thr_name = "ll_ost_create",
2509 .tc_thr_factor = OSS_CR_THR_FACTOR,
2510 .tc_nthrs_init = OSS_CR_NTHRS_INIT,
2511 .tc_nthrs_base = OSS_CR_NTHRS_BASE,
2512 .tc_nthrs_max = OSS_CR_NTHRS_MAX,
2513 .tc_nthrs_user = oss_num_create_threads,
2514 .tc_cpu_affinity = 1,
2515 .tc_ctx_tags = LCT_DT_THREAD,
2518 .cc_pattern = oss_cpts,
2521 .so_req_handler = ost_handle,
2522 .so_req_printer = target_print_req,
2525 ost->ost_create_service = ptlrpc_register_service(&svc_conf,
2526 obd->obd_proc_entry);
2527 if (IS_ERR(ost->ost_create_service)) {
2528 rc = PTR_ERR(ost->ost_create_service);
2529 CERROR("failed to start OST create service: %d\n", rc);
2530 GOTO(out_service, rc);
2533 mask = cfs_cpt_table->ctb_nodemask;
2534 /* event CPT feature is disabled in libcfs level by set partition
2535 * number to 1, we still want to set node affinity for io service */
2536 if (cfs_cpt_number(cfs_cpt_table) == 1 && nodes_weight(*mask) > 1) {
2540 ost_io_cptable = cfs_cpt_table_alloc(nodes_weight(*mask));
2541 for_each_node_mask(i, *mask) {
2542 if (ost_io_cptable == NULL) {
2543 CWARN("OSS failed to create CPT table\n");
2547 rc = cfs_cpt_set_node(ost_io_cptable, cpt++, i);
2549 CWARN("OSS Failed to set node %d for"
2550 "IO CPT table\n", i);
2551 cfs_cpt_table_free(ost_io_cptable);
2552 ost_io_cptable = NULL;
2558 memset(&svc_conf, 0, sizeof(svc_conf));
2559 svc_conf = (typeof(svc_conf)) {
2560 .psc_name = "ost_io",
2561 .psc_watchdog_factor = OSS_SERVICE_WATCHDOG_FACTOR,
2563 .bc_nbufs = OST_NBUFS,
2564 .bc_buf_size = OST_BUFSIZE,
2565 .bc_req_max_size = OST_MAXREQSIZE,
2566 .bc_rep_max_size = OST_MAXREPSIZE,
2567 .bc_req_portal = OST_IO_PORTAL,
2568 .bc_rep_portal = OSC_REPLY_PORTAL,
2571 .tc_thr_name = "ll_ost_io",
2572 .tc_thr_factor = OSS_THR_FACTOR,
2573 .tc_nthrs_init = OSS_NTHRS_INIT,
2574 .tc_nthrs_base = OSS_NTHRS_BASE,
2575 .tc_nthrs_max = OSS_NTHRS_MAX,
2576 .tc_nthrs_user = oss_num_threads,
2577 .tc_cpu_affinity = 1,
2578 .tc_ctx_tags = LCT_DT_THREAD,
2581 .cc_cptable = ost_io_cptable,
2582 .cc_pattern = ost_io_cptable == NULL ?
2586 .so_thr_init = ost_io_thread_init,
2587 .so_thr_done = ost_io_thread_done,
2588 .so_req_handler = ost_handle,
2589 .so_hpreq_handler = ost_io_hpreq_handler,
2590 .so_req_printer = target_print_req,
2593 ost->ost_io_service = ptlrpc_register_service(&svc_conf,
2594 obd->obd_proc_entry);
2595 if (IS_ERR(ost->ost_io_service)) {
2596 rc = PTR_ERR(ost->ost_io_service);
2597 CERROR("failed to start OST I/O service: %d\n", rc);
2598 ost->ost_io_service = NULL;
2599 GOTO(out_create, rc);
2602 ping_evictor_start();
2607 ptlrpc_unregister_service(ost->ost_create_service);
2608 ost->ost_create_service = NULL;
2610 ptlrpc_unregister_service(ost->ost_service);
2611 ost->ost_service = NULL;
2613 lprocfs_obd_cleanup(obd);
2617 static int ost_cleanup(struct obd_device *obd)
2619 struct ost_obd *ost = &obd->u.ost;
2623 ping_evictor_stop();
2625 /* there is no recovery for OST OBD, all recovery is controlled by
2627 LASSERT(obd->obd_recovering == 0);
2628 cfs_mutex_lock(&ost->ost_health_mutex);
2629 ptlrpc_unregister_service(ost->ost_service);
2630 ptlrpc_unregister_service(ost->ost_create_service);
2631 ptlrpc_unregister_service(ost->ost_io_service);
2632 ost->ost_service = NULL;
2633 ost->ost_create_service = NULL;
2634 ost->ost_io_service = NULL;
2636 cfs_mutex_unlock(&ost->ost_health_mutex);
2638 lprocfs_obd_cleanup(obd);
2640 if (ost_io_cptable != NULL) {
2641 cfs_cpt_table_free(ost_io_cptable);
2642 ost_io_cptable = NULL;
2648 static int ost_health_check(const struct lu_env *env, struct obd_device *obd)
2650 struct ost_obd *ost = &obd->u.ost;
2653 cfs_mutex_lock(&ost->ost_health_mutex);
2654 rc |= ptlrpc_service_health_check(ost->ost_service);
2655 rc |= ptlrpc_service_health_check(ost->ost_create_service);
2656 rc |= ptlrpc_service_health_check(ost->ost_io_service);
2657 cfs_mutex_unlock(&ost->ost_health_mutex);
2660 * health_check to return 0 on healthy
2661 * and 1 on unhealthy.
2669 struct ost_thread_local_cache *ost_tls(struct ptlrpc_request *r)
2671 return (struct ost_thread_local_cache *)(r->rq_svc_thread->t_data);
2674 /* use obd ops to offer management infrastructure */
2675 static struct obd_ops ost_obd_ops = {
2676 .o_owner = THIS_MODULE,
2677 .o_setup = ost_setup,
2678 .o_cleanup = ost_cleanup,
2679 .o_health_check = ost_health_check,
2683 static int __init ost_init(void)
2685 struct lprocfs_static_vars lvars;
2689 ost_page_to_corrupt = cfs_alloc_page(CFS_ALLOC_STD);
2691 lprocfs_ost_init_vars(&lvars);
2692 rc = class_register_type(&ost_obd_ops, NULL, lvars.module_vars,
2693 LUSTRE_OSS_NAME, NULL);
2695 if (ost_num_threads != 0 && oss_num_threads == 0) {
2696 LCONSOLE_INFO("ost_num_threads module parameter is deprecated, "
2697 "use oss_num_threads instead or unset both for "
2698 "dynamic thread startup\n");
2699 oss_num_threads = ost_num_threads;
2705 static void /*__exit*/ ost_exit(void)
2707 if (ost_page_to_corrupt)
2708 page_cache_release(ost_page_to_corrupt);
2710 class_unregister_type(LUSTRE_OSS_NAME);
2713 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
2714 MODULE_DESCRIPTION("Lustre Object Storage Target (OST) v0.01");
2715 MODULE_LICENSE("GPL");
2717 module_init(ost_init);
2718 module_exit(ost_exit);