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 (c) 2007, 2010, Oracle and/or its affiliates. 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/mdt/mdt_handler.c
38 * Lustre Metadata Target (mdt) request handler
40 * Author: Peter Braam <braam@clusterfs.com>
41 * Author: Andreas Dilger <adilger@clusterfs.com>
42 * Author: Phil Schwan <phil@clusterfs.com>
43 * Author: Mike Shaver <shaver@clusterfs.com>
44 * Author: Nikita Danilov <nikita@clusterfs.com>
45 * Author: Huang Hua <huanghua@clusterfs.com>
46 * Author: Yury Umanets <umka@clusterfs.com>
50 # define EXPORT_SYMTAB
52 #define DEBUG_SUBSYSTEM S_MDS
54 #include <linux/module.h>
56 * struct OBD_{ALLOC,FREE}*()
58 #include <obd_support.h>
59 /* struct ptlrpc_request */
60 #include <lustre_net.h>
61 /* struct obd_export */
62 #include <lustre_export.h>
63 /* struct obd_device */
66 #include <dt_object.h>
67 #include <lustre_mds.h>
68 #include <lustre_mdt.h>
69 #include "mdt_internal.h"
70 #ifdef HAVE_QUOTA_SUPPORT
71 # include <lustre_quota.h>
73 #include <lustre_acl.h>
74 #include <lustre_param.h>
75 #include <lustre_fsfilt.h>
77 mdl_mode_t mdt_mdl_lock_modes[] = {
78 [LCK_MINMODE] = MDL_MINMODE,
85 [LCK_GROUP] = MDL_GROUP
88 ldlm_mode_t mdt_dlm_lock_modes[] = {
89 [MDL_MINMODE] = LCK_MINMODE,
96 [MDL_GROUP] = LCK_GROUP
100 * Initialized in mdt_mod_init().
102 static unsigned long mdt_num_threads;
103 static unsigned long mdt_min_threads;
104 static unsigned long mdt_max_threads;
106 /* ptlrpc request handler for MDT. All handlers are
107 * grouped into several slices - struct mdt_opc_slice,
108 * and stored in an array - mdt_handlers[].
111 /* The name of this handler. */
113 /* Fail id for this handler, checked at the beginning of this handler*/
115 /* Operation code for this handler */
117 /* flags are listed in enum mdt_handler_flags below. */
119 /* The actual handler function to execute. */
120 int (*mh_act)(struct mdt_thread_info *info);
121 /* Request format for this request. */
122 const struct req_format *mh_fmt;
125 enum mdt_handler_flags {
127 * struct mdt_body is passed in the incoming message, and object
128 * identified by this fid exists on disk.
130 * "habeo corpus" == "I have a body"
132 HABEO_CORPUS = (1 << 0),
134 * struct ldlm_request is passed in the incoming message.
136 * "habeo clavis" == "I have a key"
138 HABEO_CLAVIS = (1 << 1),
140 * this request has fixed reply format, so that reply message can be
141 * packed by generic code.
143 * "habeo refero" == "I have a reply"
145 HABEO_REFERO = (1 << 2),
147 * this request will modify something, so check whether the filesystem
148 * is readonly or not, then return -EROFS to client asap if necessary.
150 * "mutabor" == "I shall modify"
155 struct mdt_opc_slice {
158 struct mdt_handler *mos_hs;
161 static struct mdt_opc_slice mdt_regular_handlers[];
162 static struct mdt_opc_slice mdt_readpage_handlers[];
163 static struct mdt_opc_slice mdt_xmds_handlers[];
164 static struct mdt_opc_slice mdt_seq_handlers[];
165 static struct mdt_opc_slice mdt_fld_handlers[];
167 static struct mdt_device *mdt_dev(struct lu_device *d);
168 static int mdt_regular_handle(struct ptlrpc_request *req);
169 static int mdt_unpack_req_pack_rep(struct mdt_thread_info *info, __u32 flags);
170 static int mdt_fid2path(const struct lu_env *env, struct mdt_device *mdt,
171 struct getinfo_fid2path *fp);
173 static const struct lu_object_operations mdt_obj_ops;
175 int mdt_get_disposition(struct ldlm_reply *rep, int flag)
179 return (rep->lock_policy_res1 & flag);
182 void mdt_clear_disposition(struct mdt_thread_info *info,
183 struct ldlm_reply *rep, int flag)
186 info->mti_opdata &= ~flag;
188 rep->lock_policy_res1 &= ~flag;
191 void mdt_set_disposition(struct mdt_thread_info *info,
192 struct ldlm_reply *rep, int flag)
195 info->mti_opdata |= flag;
197 rep->lock_policy_res1 |= flag;
200 void mdt_lock_reg_init(struct mdt_lock_handle *lh, ldlm_mode_t lm)
202 lh->mlh_pdo_hash = 0;
203 lh->mlh_reg_mode = lm;
204 lh->mlh_type = MDT_REG_LOCK;
207 void mdt_lock_pdo_init(struct mdt_lock_handle *lh, ldlm_mode_t lm,
208 const char *name, int namelen)
210 lh->mlh_reg_mode = lm;
211 lh->mlh_type = MDT_PDO_LOCK;
214 LASSERT(namelen > 0);
215 lh->mlh_pdo_hash = full_name_hash(name, namelen);
217 LASSERT(namelen == 0);
218 lh->mlh_pdo_hash = 0ull;
222 static void mdt_lock_pdo_mode(struct mdt_thread_info *info, struct mdt_object *o,
223 struct mdt_lock_handle *lh)
229 * Any dir access needs couple of locks:
231 * 1) on part of dir we gonna take lookup/modify;
233 * 2) on whole dir to protect it from concurrent splitting and/or to
234 * flush client's cache for readdir().
236 * so, for a given mode and object this routine decides what lock mode
237 * to use for lock #2:
239 * 1) if caller's gonna lookup in dir then we need to protect dir from
240 * being splitted only - LCK_CR
242 * 2) if caller's gonna modify dir then we need to protect dir from
243 * being splitted and to flush cache - LCK_CW
245 * 3) if caller's gonna modify dir and that dir seems ready for
246 * splitting then we need to protect it from any type of access
247 * (lookup/modify/split) - LCK_EX --bzzz
250 LASSERT(lh->mlh_reg_mode != LCK_MINMODE);
251 LASSERT(lh->mlh_pdo_mode == LCK_MINMODE);
254 * Ask underlaying level its opinion about preferable PDO lock mode
255 * having access type passed as regular lock mode:
257 * - MDL_MINMODE means that lower layer does not want to specify lock
260 * - MDL_NL means that no PDO lock should be taken. This is used in some
261 * cases. Say, for non-splittable directories no need to use PDO locks
264 mode = mdo_lock_mode(info->mti_env, mdt_object_child(o),
265 mdt_dlm_mode2mdl_mode(lh->mlh_reg_mode));
267 if (mode != MDL_MINMODE) {
268 lh->mlh_pdo_mode = mdt_mdl_mode2dlm_mode(mode);
271 * Lower layer does not want to specify locking mode. We do it
272 * our selves. No special protection is needed, just flush
273 * client's cache on modification and allow concurrent
276 switch (lh->mlh_reg_mode) {
278 lh->mlh_pdo_mode = LCK_EX;
281 lh->mlh_pdo_mode = LCK_CR;
284 lh->mlh_pdo_mode = LCK_CW;
287 CERROR("Not expected lock type (0x%x)\n",
288 (int)lh->mlh_reg_mode);
293 LASSERT(lh->mlh_pdo_mode != LCK_MINMODE);
297 static int mdt_getstatus(struct mdt_thread_info *info)
299 struct mdt_device *mdt = info->mti_mdt;
300 struct md_device *next = mdt->mdt_child;
301 struct mdt_body *repbody;
306 rc = mdt_check_ucred(info);
308 RETURN(err_serious(rc));
310 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_GETSTATUS_PACK))
311 RETURN(err_serious(-ENOMEM));
313 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
314 rc = next->md_ops->mdo_root_get(info->mti_env, next, &repbody->fid1);
318 repbody->valid |= OBD_MD_FLID;
320 if (mdt->mdt_opts.mo_mds_capa &&
321 info->mti_exp->exp_connect_flags & OBD_CONNECT_MDS_CAPA) {
322 struct mdt_object *root;
323 struct lustre_capa *capa;
325 root = mdt_object_find(info->mti_env, mdt, &repbody->fid1);
327 RETURN(PTR_ERR(root));
329 capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA1);
331 capa->lc_opc = CAPA_OPC_MDS_DEFAULT;
332 rc = mo_capa_get(info->mti_env, mdt_object_child(root), capa,
334 mdt_object_put(info->mti_env, root);
336 repbody->valid |= OBD_MD_FLMDSCAPA;
342 static int mdt_statfs(struct mdt_thread_info *info)
344 struct md_device *next = info->mti_mdt->mdt_child;
345 struct ptlrpc_service *svc;
346 struct obd_statfs *osfs;
351 svc = info->mti_pill->rc_req->rq_rqbd->rqbd_service;
353 /* This will trigger a watchdog timeout */
354 OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_STATFS_LCW_SLEEP,
355 (MDT_SERVICE_WATCHDOG_FACTOR *
356 at_get(&svc->srv_at_estimate)) + 1);
358 rc = mdt_check_ucred(info);
360 RETURN(err_serious(rc));
362 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_STATFS_PACK)) {
363 rc = err_serious(-ENOMEM);
365 osfs = req_capsule_server_get(info->mti_pill, &RMF_OBD_STATFS);
366 rc = next->md_ops->mdo_statfs(info->mti_env, next,
368 statfs_pack(osfs, &info->mti_u.ksfs);
374 * Pack SOM attributes into the reply.
375 * Call under a DLM UPDATE lock.
377 static void mdt_pack_size2body(struct mdt_thread_info *info,
378 struct mdt_object *mo)
381 struct md_attr *ma = &info->mti_attr;
383 LASSERT(ma->ma_attr.la_valid & LA_MODE);
384 b = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
386 /* Check if Size-on-MDS is supported, if this is a regular file,
387 * if SOM is enabled on the object and if SOM cache exists and valid.
388 * Otherwise do not pack Size-on-MDS attributes to the reply. */
389 if (!(mdt_conn_flags(info) & OBD_CONNECT_SOM) ||
390 !S_ISREG(ma->ma_attr.la_mode) ||
391 !mdt_object_is_som_enabled(mo) ||
392 !(ma->ma_valid & MA_SOM))
395 b->valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
396 b->size = ma->ma_som->msd_size;
397 b->blocks = ma->ma_som->msd_blocks;
400 void mdt_pack_attr2body(struct mdt_thread_info *info, struct mdt_body *b,
401 const struct lu_attr *attr, const struct lu_fid *fid)
403 struct md_attr *ma = &info->mti_attr;
405 LASSERT(ma->ma_valid & MA_INODE);
407 b->atime = attr->la_atime;
408 b->mtime = attr->la_mtime;
409 b->ctime = attr->la_ctime;
410 b->mode = attr->la_mode;
411 b->size = attr->la_size;
412 b->blocks = attr->la_blocks;
413 b->uid = attr->la_uid;
414 b->gid = attr->la_gid;
415 b->flags = attr->la_flags;
416 b->nlink = attr->la_nlink;
417 b->rdev = attr->la_rdev;
419 /*XXX should pack the reply body according to lu_valid*/
420 b->valid |= OBD_MD_FLCTIME | OBD_MD_FLUID |
421 OBD_MD_FLGID | OBD_MD_FLTYPE |
422 OBD_MD_FLMODE | OBD_MD_FLNLINK | OBD_MD_FLFLAGS |
423 OBD_MD_FLATIME | OBD_MD_FLMTIME ;
425 if (!S_ISREG(attr->la_mode)) {
426 b->valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS | OBD_MD_FLRDEV;
427 } else if (ma->ma_need & MA_LOV && ma->ma_lmm_size == 0) {
428 /* means no objects are allocated on osts. */
429 LASSERT(!(ma->ma_valid & MA_LOV));
430 /* just ignore blocks occupied by extend attributes on MDS */
432 /* if no object is allocated on osts, the size on mds is valid. b=22272 */
433 b->valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
438 b->valid |= OBD_MD_FLID;
440 /* FIXME: these should be fixed when new igif ready.*/
441 b->ino = fid_oid(fid); /* 1.6 compatibility */
442 b->generation = fid_ver(fid); /* 1.6 compatibility */
443 b->valid |= OBD_MD_FLGENER; /* 1.6 compatibility */
445 CDEBUG(D_INODE, DFID": nlink=%d, mode=%o, size="LPU64"\n",
446 PFID(fid), b->nlink, b->mode, b->size);
450 mdt_body_reverse_idmap(info, b);
452 if (b->valid & OBD_MD_FLSIZE)
453 CDEBUG(D_VFSTRACE, DFID": returning size %llu\n",
454 PFID(fid), (unsigned long long)b->size);
457 static inline int mdt_body_has_lov(const struct lu_attr *la,
458 const struct mdt_body *body)
460 return ((S_ISREG(la->la_mode) && (body->valid & OBD_MD_FLEASIZE)) ||
461 (S_ISDIR(la->la_mode) && (body->valid & OBD_MD_FLDIREA )) );
464 static int mdt_getattr_internal(struct mdt_thread_info *info,
465 struct mdt_object *o, int ma_need)
467 struct md_object *next = mdt_object_child(o);
468 const struct mdt_body *reqbody = info->mti_body;
469 struct ptlrpc_request *req = mdt_info_req(info);
470 struct md_attr *ma = &info->mti_attr;
471 struct lu_attr *la = &ma->ma_attr;
472 struct req_capsule *pill = info->mti_pill;
473 const struct lu_env *env = info->mti_env;
474 struct mdt_body *repbody;
475 struct lu_buf *buffer = &info->mti_buf;
479 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_GETATTR_PACK))
480 RETURN(err_serious(-ENOMEM));
482 repbody = req_capsule_server_get(pill, &RMF_MDT_BODY);
486 rc = mdt_object_exists(o);
488 /* This object is located on remote node.*/
489 repbody->fid1 = *mdt_object_fid(o);
490 repbody->valid = OBD_MD_FLID | OBD_MD_MDS;
494 buffer->lb_buf = req_capsule_server_get(pill, &RMF_MDT_MD);
495 buffer->lb_len = req_capsule_get_size(pill, &RMF_MDT_MD, RCL_SERVER);
497 /* If it is dir object and client require MEA, then we got MEA */
498 if (S_ISDIR(lu_object_attr(&next->mo_lu)) &&
499 reqbody->valid & OBD_MD_MEA) {
500 /* Assumption: MDT_MD size is enough for lmv size. */
501 ma->ma_lmv = buffer->lb_buf;
502 ma->ma_lmv_size = buffer->lb_len;
503 ma->ma_need = MA_LMV | MA_INODE;
505 ma->ma_lmm = buffer->lb_buf;
506 ma->ma_lmm_size = buffer->lb_len;
507 ma->ma_need = MA_LOV | MA_INODE;
510 if (S_ISDIR(lu_object_attr(&next->mo_lu)) &&
511 reqbody->valid & OBD_MD_FLDIREA &&
512 lustre_msg_get_opc(req->rq_reqmsg) == MDS_GETATTR) {
513 /* get default stripe info for this dir. */
514 ma->ma_need |= MA_LOV_DEF;
516 ma->ma_need |= ma_need;
517 if (ma->ma_need & MA_SOM)
518 ma->ma_som = &info->mti_u.som.data;
520 rc = mo_attr_get(env, next, ma);
522 CERROR("getattr error for "DFID": %d\n",
523 PFID(mdt_object_fid(o)), rc);
527 if (likely(ma->ma_valid & MA_INODE))
528 mdt_pack_attr2body(info, repbody, la, mdt_object_fid(o));
532 if (mdt_body_has_lov(la, reqbody)) {
533 if (ma->ma_valid & MA_LOV) {
534 LASSERT(ma->ma_lmm_size);
535 mdt_dump_lmm(D_INFO, ma->ma_lmm);
536 repbody->eadatasize = ma->ma_lmm_size;
537 if (S_ISDIR(la->la_mode))
538 repbody->valid |= OBD_MD_FLDIREA;
540 repbody->valid |= OBD_MD_FLEASIZE;
542 if (ma->ma_valid & MA_LMV) {
543 LASSERT(S_ISDIR(la->la_mode));
544 repbody->eadatasize = ma->ma_lmv_size;
545 repbody->valid |= (OBD_MD_FLDIREA|OBD_MD_MEA);
547 } else if (S_ISLNK(la->la_mode) &&
548 reqbody->valid & OBD_MD_LINKNAME) {
549 buffer->lb_buf = ma->ma_lmm;
550 buffer->lb_len = reqbody->eadatasize;
551 rc = mo_readlink(env, next, buffer);
552 if (unlikely(rc <= 0)) {
553 CERROR("readlink failed: %d\n", rc);
556 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_READLINK_EPROTO))
558 repbody->valid |= OBD_MD_LINKNAME;
559 repbody->eadatasize = rc;
561 ((char*)ma->ma_lmm)[rc - 1] = 0;
562 CDEBUG(D_INODE, "symlink dest %s, len = %d\n",
563 (char*)ma->ma_lmm, rc);
568 if (reqbody->valid & OBD_MD_FLMODEASIZE) {
569 repbody->max_cookiesize = info->mti_mdt->mdt_max_cookiesize;
570 repbody->max_mdsize = info->mti_mdt->mdt_max_mdsize;
571 repbody->valid |= OBD_MD_FLMODEASIZE;
572 CDEBUG(D_INODE, "I am going to change the MAX_MD_SIZE & "
573 "MAX_COOKIE to : %d:%d\n", repbody->max_mdsize,
574 repbody->max_cookiesize);
577 if (exp_connect_rmtclient(info->mti_exp) &&
578 reqbody->valid & OBD_MD_FLRMTPERM) {
579 void *buf = req_capsule_server_get(pill, &RMF_ACL);
581 /* mdt_getattr_lock only */
582 rc = mdt_pack_remote_perm(info, o, buf);
584 repbody->valid &= ~OBD_MD_FLRMTPERM;
585 repbody->aclsize = 0;
588 repbody->valid |= OBD_MD_FLRMTPERM;
589 repbody->aclsize = sizeof(struct mdt_remote_perm);
592 #ifdef CONFIG_FS_POSIX_ACL
593 else if ((req->rq_export->exp_connect_flags & OBD_CONNECT_ACL) &&
594 (reqbody->valid & OBD_MD_FLACL)) {
595 buffer->lb_buf = req_capsule_server_get(pill, &RMF_ACL);
596 buffer->lb_len = req_capsule_get_size(pill,
597 &RMF_ACL, RCL_SERVER);
598 if (buffer->lb_len > 0) {
599 rc = mo_xattr_get(env, next, buffer,
600 XATTR_NAME_ACL_ACCESS);
602 if (rc == -ENODATA) {
603 repbody->aclsize = 0;
604 repbody->valid |= OBD_MD_FLACL;
606 } else if (rc == -EOPNOTSUPP) {
609 CERROR("got acl size: %d\n", rc);
612 repbody->aclsize = rc;
613 repbody->valid |= OBD_MD_FLACL;
620 if (reqbody->valid & OBD_MD_FLMDSCAPA &&
621 info->mti_mdt->mdt_opts.mo_mds_capa &&
622 info->mti_exp->exp_connect_flags & OBD_CONNECT_MDS_CAPA) {
623 struct lustre_capa *capa;
625 capa = req_capsule_server_get(pill, &RMF_CAPA1);
627 capa->lc_opc = CAPA_OPC_MDS_DEFAULT;
628 rc = mo_capa_get(env, next, capa, 0);
631 repbody->valid |= OBD_MD_FLMDSCAPA;
636 static int mdt_renew_capa(struct mdt_thread_info *info)
638 struct mdt_object *obj = info->mti_object;
639 struct mdt_body *body;
640 struct lustre_capa *capa, *c;
644 /* if object doesn't exist, or server has disabled capability,
645 * return directly, client will find body->valid OBD_MD_FLOSSCAPA
648 if (!obj || !info->mti_mdt->mdt_opts.mo_oss_capa ||
649 !(info->mti_exp->exp_connect_flags & OBD_CONNECT_OSS_CAPA))
652 body = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
653 LASSERT(body != NULL);
655 c = req_capsule_client_get(info->mti_pill, &RMF_CAPA1);
658 capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2);
662 rc = mo_capa_get(info->mti_env, mdt_object_child(obj), capa, 1);
664 body->valid |= OBD_MD_FLOSSCAPA;
668 static int mdt_getattr(struct mdt_thread_info *info)
670 struct mdt_object *obj = info->mti_object;
671 struct req_capsule *pill = info->mti_pill;
672 struct mdt_body *reqbody;
673 struct mdt_body *repbody;
679 reqbody = req_capsule_client_get(pill, &RMF_MDT_BODY);
682 if (reqbody->valid & OBD_MD_FLOSSCAPA) {
683 rc = req_capsule_server_pack(pill);
685 RETURN(err_serious(rc));
686 rc = mdt_renew_capa(info);
687 GOTO(out_shrink, rc);
690 LASSERT(obj != NULL);
691 LASSERT(lu_object_assert_exists(&obj->mot_obj.mo_lu));
693 mode = lu_object_attr(&obj->mot_obj.mo_lu);
694 if (S_ISLNK(mode) && (reqbody->valid & OBD_MD_LINKNAME) &&
695 (reqbody->eadatasize > info->mti_mdt->mdt_max_mdsize))
696 md_size = reqbody->eadatasize;
698 md_size = info->mti_mdt->mdt_max_mdsize;
700 req_capsule_set_size(pill, &RMF_MDT_MD, RCL_SERVER, md_size);
702 rc = req_capsule_server_pack(pill);
703 if (unlikely(rc != 0))
704 RETURN(err_serious(rc));
706 repbody = req_capsule_server_get(pill, &RMF_MDT_BODY);
707 LASSERT(repbody != NULL);
708 repbody->eadatasize = 0;
709 repbody->aclsize = 0;
711 if (reqbody->valid & OBD_MD_FLRMTPERM)
712 rc = mdt_init_ucred(info, reqbody);
714 rc = mdt_check_ucred(info);
716 GOTO(out_shrink, rc);
718 info->mti_spec.sp_ck_split = !!(reqbody->valid & OBD_MD_FLCKSPLIT);
719 info->mti_cross_ref = !!(reqbody->valid & OBD_MD_FLCROSSREF);
722 * Don't check capability at all, because rename might getattr for
723 * remote obj, and at that time no capability is available.
725 mdt_set_capainfo(info, 1, &reqbody->fid1, BYPASS_CAPA);
726 rc = mdt_getattr_internal(info, obj, 0);
727 if (reqbody->valid & OBD_MD_FLRMTPERM)
728 mdt_exit_ucred(info);
731 mdt_shrink_reply(info);
735 static int mdt_is_subdir(struct mdt_thread_info *info)
737 struct mdt_object *o = info->mti_object;
738 struct req_capsule *pill = info->mti_pill;
739 const struct mdt_body *body = info->mti_body;
740 struct mdt_body *repbody;
746 repbody = req_capsule_server_get(pill, &RMF_MDT_BODY);
749 * We save last checked parent fid to @repbody->fid1 for remote
752 LASSERT(fid_is_sane(&body->fid2));
753 LASSERT(mdt_object_exists(o) > 0);
754 rc = mdo_is_subdir(info->mti_env, mdt_object_child(o),
755 &body->fid2, &repbody->fid1);
756 if (rc == 0 || rc == -EREMOTE)
757 repbody->valid |= OBD_MD_FLID;
762 static int mdt_raw_lookup(struct mdt_thread_info *info,
763 struct mdt_object *parent,
764 const struct lu_name *lname,
765 struct ldlm_reply *ldlm_rep)
767 struct md_object *next = mdt_object_child(info->mti_object);
768 const struct mdt_body *reqbody = info->mti_body;
769 struct lu_fid *child_fid = &info->mti_tmp_fid1;
770 struct mdt_body *repbody;
774 if (reqbody->valid != OBD_MD_FLID)
777 LASSERT(!info->mti_cross_ref);
779 /* Only got the fid of this obj by name */
780 rc = mdo_lookup(info->mti_env, next, lname, child_fid,
783 /* XXX is raw_lookup possible as intent operation? */
786 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_NEG);
789 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS);
791 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
794 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
795 repbody->fid1 = *child_fid;
796 repbody->valid = OBD_MD_FLID;
802 * UPDATE lock should be taken against parent, and be release before exit;
803 * child_bits lock should be taken against child, and be returned back:
804 * (1)normal request should release the child lock;
805 * (2)intent request will grant the lock to client.
807 static int mdt_getattr_name_lock(struct mdt_thread_info *info,
808 struct mdt_lock_handle *lhc,
810 struct ldlm_reply *ldlm_rep)
812 struct ptlrpc_request *req = mdt_info_req(info);
813 struct mdt_body *reqbody = NULL;
814 struct mdt_object *parent = info->mti_object;
815 struct mdt_object *child;
816 struct md_object *next = mdt_object_child(parent);
817 struct lu_fid *child_fid = &info->mti_tmp_fid1;
818 struct lu_name *lname = NULL;
819 const char *name = NULL;
821 struct mdt_lock_handle *lhp;
822 struct ldlm_lock *lock;
823 struct ldlm_res_id *res_id;
830 is_resent = lustre_handle_is_used(&lhc->mlh_reg_lh);
831 LASSERT(ergo(is_resent,
832 lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT));
834 LASSERT(parent != NULL);
835 name = req_capsule_client_get(info->mti_pill, &RMF_NAME);
837 RETURN(err_serious(-EFAULT));
839 namelen = req_capsule_get_size(info->mti_pill, &RMF_NAME,
841 if (!info->mti_cross_ref) {
843 * XXX: Check for "namelen == 0" is for getattr by fid
844 * (OBD_CONNECT_ATTRFID), otherwise do not allow empty name,
845 * that is the name must contain at least one character and
846 * the terminating '\0'
849 reqbody = req_capsule_client_get(info->mti_pill,
851 LASSERT(fid_is_sane(&reqbody->fid2));
854 CDEBUG(D_INODE, "getattr with lock for "DFID"/"DFID", "
856 PFID(mdt_object_fid(parent)), PFID(&reqbody->fid2),
859 lname = mdt_name(info->mti_env, (char *)name, namelen);
860 CDEBUG(D_INODE, "getattr with lock for "DFID"/%s, "
861 "ldlm_rep = %p\n", PFID(mdt_object_fid(parent)),
865 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_EXECD);
867 rc = mdt_object_exists(parent);
868 if (unlikely(rc == 0)) {
869 LU_OBJECT_DEBUG(D_WARNING, info->mti_env,
870 &parent->mot_obj.mo_lu,
871 "Parent doesn't exist!\n");
873 } else if (!info->mti_cross_ref) {
874 LASSERTF(rc > 0, "Parent "DFID" is on remote server\n",
875 PFID(mdt_object_fid(parent)));
878 rc = mdt_raw_lookup(info, parent, lname, ldlm_rep);
886 if (info->mti_cross_ref) {
887 /* Only getattr on the child. Parent is on another node. */
888 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS);
890 CDEBUG(D_INODE, "partial getattr_name child_fid = "DFID", "
891 "ldlm_rep=%p\n", PFID(mdt_object_fid(child)), ldlm_rep);
894 /* Do not take lock for resent case. */
895 lock = ldlm_handle2lock(&lhc->mlh_reg_lh);
896 LASSERTF(lock != NULL, "Invalid lock handle "LPX64"\n",
897 lhc->mlh_reg_lh.cookie);
898 LASSERT(fid_res_name_eq(mdt_object_fid(child),
899 &lock->l_resource->lr_name));
903 mdt_lock_handle_init(lhc);
904 mdt_lock_reg_init(lhc, LCK_PR);
907 * Object's name is on another MDS, no lookup lock is
908 * needed here but update is.
910 child_bits &= ~MDS_INODELOCK_LOOKUP;
911 child_bits |= MDS_INODELOCK_UPDATE;
913 rc = mdt_object_lock(info, child, lhc, child_bits,
917 /* Finally, we can get attr for child. */
918 mdt_set_capainfo(info, 0, mdt_object_fid(child),
920 rc = mdt_getattr_internal(info, child, 0);
921 if (unlikely(rc != 0))
922 mdt_object_unlock(info, child, lhc, 1);
927 /* step 1: lock parent */
928 lhp = &info->mti_lh[MDT_LH_PARENT];
929 mdt_lock_pdo_init(lhp, LCK_PR, name, namelen);
930 rc = mdt_object_lock(info, parent, lhp, MDS_INODELOCK_UPDATE,
933 if (unlikely(rc != 0))
937 /* step 2: lookup child's fid by name */
938 rc = mdo_lookup(info->mti_env, next, lname, child_fid,
943 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_NEG);
944 GOTO(out_parent, rc);
946 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS);
948 *child_fid = reqbody->fid2;
949 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS);
953 *step 3: find the child object by fid & lock it.
954 * regardless if it is local or remote.
956 child = mdt_object_find(info->mti_env, info->mti_mdt, child_fid);
958 if (unlikely(IS_ERR(child)))
959 GOTO(out_parent, rc = PTR_ERR(child));
961 /* Do not take lock for resent case. */
962 lock = ldlm_handle2lock(&lhc->mlh_reg_lh);
963 LASSERTF(lock != NULL, "Invalid lock handle "LPX64"\n",
964 lhc->mlh_reg_lh.cookie);
966 res_id = &lock->l_resource->lr_name;
967 if (!fid_res_name_eq(mdt_object_fid(child),
968 &lock->l_resource->lr_name)) {
969 LASSERTF(fid_res_name_eq(mdt_object_fid(parent),
970 &lock->l_resource->lr_name),
971 "Lock res_id: %lu/%lu/%lu, Fid: "DFID".\n",
972 (unsigned long)res_id->name[0],
973 (unsigned long)res_id->name[1],
974 (unsigned long)res_id->name[2],
975 PFID(mdt_object_fid(parent)));
976 CWARN("Although resent, but still not get child lock"
977 "parent:"DFID" child:"DFID"\n",
978 PFID(mdt_object_fid(parent)),
979 PFID(mdt_object_fid(child)));
980 lustre_msg_clear_flags(req->rq_reqmsg, MSG_RESENT);
989 ma = &info->mti_attr;
991 OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_RESEND, obd_timeout*2);
992 mdt_lock_handle_init(lhc);
993 mdt_lock_reg_init(lhc, LCK_PR);
995 if (mdt_object_exists(child) == 0) {
996 LU_OBJECT_DEBUG(D_WARNING, info->mti_env,
997 &child->mot_obj.mo_lu,
998 "Object doesn't exist!\n");
999 GOTO(out_child, rc = -ESTALE);
1003 ma->ma_need = MA_INODE;
1004 rc = mo_attr_get(info->mti_env, next, ma);
1005 if (unlikely(rc != 0))
1006 GOTO(out_child, rc);
1008 /* If the file has not been changed for some time, we return
1009 * not only a LOOKUP lock, but also an UPDATE lock and this
1010 * might save us RPC on later STAT. For directories, it also
1011 * let negative dentry starts working for this dir. */
1012 if (ma->ma_valid & MA_INODE &&
1013 ma->ma_attr.la_valid & LA_CTIME &&
1014 info->mti_mdt->mdt_namespace->ns_ctime_age_limit +
1015 ma->ma_attr.la_ctime < cfs_time_current_sec())
1016 child_bits |= MDS_INODELOCK_UPDATE;
1018 rc = mdt_object_lock(info, child, lhc, child_bits,
1021 if (unlikely(rc != 0))
1022 GOTO(out_child, rc);
1025 lock = ldlm_handle2lock(&lhc->mlh_reg_lh);
1026 /* Get MA_SOM attributes if update lock is given. */
1028 lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_UPDATE &&
1029 S_ISREG(lu_object_attr(&mdt_object_child(child)->mo_lu)))
1032 /* finally, we can get attr for child. */
1033 mdt_set_capainfo(info, 1, child_fid, BYPASS_CAPA);
1034 rc = mdt_getattr_internal(info, child, ma_need);
1035 if (unlikely(rc != 0)) {
1036 mdt_object_unlock(info, child, lhc, 1);
1038 /* Debugging code. */
1039 res_id = &lock->l_resource->lr_name;
1040 LDLM_DEBUG(lock, "Returning lock to client");
1041 LASSERTF(fid_res_name_eq(mdt_object_fid(child),
1042 &lock->l_resource->lr_name),
1043 "Lock res_id: %lu/%lu/%lu, Fid: "DFID".\n",
1044 (unsigned long)res_id->name[0],
1045 (unsigned long)res_id->name[1],
1046 (unsigned long)res_id->name[2],
1047 PFID(mdt_object_fid(child)));
1048 mdt_pack_size2body(info, child);
1051 LDLM_LOCK_PUT(lock);
1055 mdt_object_put(info->mti_env, child);
1057 mdt_object_unlock(info, parent, lhp, 1);
1061 /* normal handler: should release the child lock */
1062 static int mdt_getattr_name(struct mdt_thread_info *info)
1064 struct mdt_lock_handle *lhc = &info->mti_lh[MDT_LH_CHILD];
1065 struct mdt_body *reqbody;
1066 struct mdt_body *repbody;
1070 reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
1071 LASSERT(reqbody != NULL);
1072 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
1073 LASSERT(repbody != NULL);
1075 info->mti_spec.sp_ck_split = !!(reqbody->valid & OBD_MD_FLCKSPLIT);
1076 info->mti_cross_ref = !!(reqbody->valid & OBD_MD_FLCROSSREF);
1077 repbody->eadatasize = 0;
1078 repbody->aclsize = 0;
1080 rc = mdt_init_ucred(info, reqbody);
1082 GOTO(out_shrink, rc);
1084 rc = mdt_getattr_name_lock(info, lhc, MDS_INODELOCK_UPDATE, NULL);
1085 if (lustre_handle_is_used(&lhc->mlh_reg_lh)) {
1086 ldlm_lock_decref(&lhc->mlh_reg_lh, lhc->mlh_reg_mode);
1087 lhc->mlh_reg_lh.cookie = 0;
1089 mdt_exit_ucred(info);
1092 mdt_shrink_reply(info);
1096 static const struct lu_device_operations mdt_lu_ops;
1098 static int lu_device_is_mdt(struct lu_device *d)
1100 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdt_lu_ops);
1103 static int mdt_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
1104 void *karg, void *uarg);
1106 static int mdt_set_info(struct mdt_thread_info *info)
1108 struct ptlrpc_request *req = mdt_info_req(info);
1111 int keylen, vallen, rc = 0;
1114 rc = req_capsule_server_pack(info->mti_pill);
1118 key = req_capsule_client_get(info->mti_pill, &RMF_SETINFO_KEY);
1120 DEBUG_REQ(D_HA, req, "no set_info key");
1124 keylen = req_capsule_get_size(info->mti_pill, &RMF_SETINFO_KEY,
1127 val = req_capsule_client_get(info->mti_pill, &RMF_SETINFO_VAL);
1129 DEBUG_REQ(D_HA, req, "no set_info val");
1133 vallen = req_capsule_get_size(info->mti_pill, &RMF_SETINFO_VAL,
1136 /* Swab any part of val you need to here */
1137 if (KEY_IS(KEY_READ_ONLY)) {
1139 lustre_msg_set_status(req->rq_repmsg, 0);
1141 cfs_spin_lock(&req->rq_export->exp_lock);
1143 req->rq_export->exp_connect_flags |= OBD_CONNECT_RDONLY;
1145 req->rq_export->exp_connect_flags &=~OBD_CONNECT_RDONLY;
1146 cfs_spin_unlock(&req->rq_export->exp_lock);
1148 } else if (KEY_IS(KEY_CHANGELOG_CLEAR)) {
1149 struct changelog_setinfo *cs =
1150 (struct changelog_setinfo *)val;
1151 if (vallen != sizeof(*cs)) {
1152 CERROR("Bad changelog_clear setinfo size %d\n", vallen);
1155 if (ptlrpc_req_need_swab(req)) {
1156 __swab64s(&cs->cs_recno);
1157 __swab32s(&cs->cs_id);
1160 rc = mdt_iocontrol(OBD_IOC_CHANGELOG_CLEAR, info->mti_exp,
1162 lustre_msg_set_status(req->rq_repmsg, rc);
1170 static int mdt_connect(struct mdt_thread_info *info)
1173 struct ptlrpc_request *req;
1175 req = mdt_info_req(info);
1176 rc = target_handle_connect(req);
1178 LASSERT(req->rq_export != NULL);
1179 info->mti_mdt = mdt_dev(req->rq_export->exp_obd->obd_lu_dev);
1180 rc = mdt_init_sec_level(info);
1182 rc = mdt_init_idmap(info);
1184 obd_disconnect(class_export_get(req->rq_export));
1186 rc = err_serious(rc);
1191 static int mdt_disconnect(struct mdt_thread_info *info)
1196 rc = target_handle_disconnect(mdt_info_req(info));
1198 rc = err_serious(rc);
1202 static int mdt_sendpage(struct mdt_thread_info *info,
1203 struct lu_rdpg *rdpg)
1205 struct ptlrpc_request *req = mdt_info_req(info);
1206 struct obd_export *exp = req->rq_export;
1207 struct ptlrpc_bulk_desc *desc;
1208 struct l_wait_info *lwi = &info->mti_u.rdpg.mti_wait_info;
1216 desc = ptlrpc_prep_bulk_exp(req, rdpg->rp_npages, BULK_PUT_SOURCE,
1221 for (i = 0, tmpcount = rdpg->rp_count;
1222 i < rdpg->rp_npages; i++, tmpcount -= tmpsize) {
1223 tmpsize = min_t(int, tmpcount, CFS_PAGE_SIZE);
1224 ptlrpc_prep_bulk_page(desc, rdpg->rp_pages[i], 0, tmpsize);
1227 LASSERT(desc->bd_nob == rdpg->rp_count);
1228 rc = sptlrpc_svc_wrap_bulk(req, desc);
1230 GOTO(free_desc, rc);
1232 rc = ptlrpc_start_bulk_transfer(desc);
1234 GOTO(free_desc, rc);
1236 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_SENDPAGE))
1237 GOTO(abort_bulk, rc = 0);
1240 timeout = (int) req->rq_deadline - cfs_time_current_sec();
1242 CERROR("Req deadline already passed %lu (now: %lu)\n",
1243 req->rq_deadline, cfs_time_current_sec());
1244 *lwi = LWI_TIMEOUT_INTERVAL(cfs_time_seconds(max(timeout, 1)),
1245 cfs_time_seconds(1), NULL, NULL);
1246 rc = l_wait_event(desc->bd_waitq,
1247 !ptlrpc_server_bulk_active(desc) ||
1249 exp->exp_abort_active_req, lwi);
1250 LASSERT (rc == 0 || rc == -ETIMEDOUT);
1251 } while ((rc == -ETIMEDOUT) &&
1252 (req->rq_deadline > cfs_time_current_sec()));
1255 if (desc->bd_success &&
1256 desc->bd_nob_transferred == rdpg->rp_count)
1257 GOTO(free_desc, rc);
1260 if (exp->exp_abort_active_req || exp->exp_failed)
1261 GOTO(abort_bulk, rc);
1264 DEBUG_REQ(D_ERROR, req, "bulk failed: %s %d(%d), evicting %s@%s",
1265 (rc == -ETIMEDOUT) ? "timeout" : "network error",
1266 desc->bd_nob_transferred, rdpg->rp_count,
1267 exp->exp_client_uuid.uuid,
1268 exp->exp_connection->c_remote_uuid.uuid);
1270 class_fail_export(exp);
1274 ptlrpc_abort_bulk(desc);
1276 ptlrpc_free_bulk(desc);
1280 #ifdef HAVE_SPLIT_SUPPORT
1282 * Retrieve dir entry from the page and insert it to the slave object, actually,
1283 * this should be in osd layer, but since it will not in the final product, so
1284 * just do it here and do not define more moo api anymore for this.
1286 static int mdt_write_dir_page(struct mdt_thread_info *info, struct page *page,
1289 struct mdt_object *object = info->mti_object;
1290 struct lu_fid *lf = &info->mti_tmp_fid2;
1291 struct md_attr *ma = &info->mti_attr;
1292 struct lu_dirpage *dp;
1293 struct lu_dirent *ent;
1294 int rc = 0, offset = 0;
1297 /* Make sure we have at least one entry. */
1302 * Disable trans for this name insert, since it will include many trans
1305 info->mti_no_need_trans = 1;
1307 * When write_dir_page, no need update parent's ctime,
1308 * and no permission check for name_insert.
1310 ma->ma_attr.la_ctime = 0;
1311 ma->ma_attr.la_valid = LA_MODE;
1312 ma->ma_valid = MA_INODE;
1315 dp = page_address(page);
1316 offset = (int)((__u32)lu_dirent_start(dp) - (__u32)dp);
1318 for (ent = lu_dirent_start(dp); ent != NULL;
1319 ent = lu_dirent_next(ent)) {
1320 struct lu_name *lname;
1323 if (le16_to_cpu(ent->lde_namelen) == 0)
1326 fid_le_to_cpu(lf, &ent->lde_fid);
1327 if (le64_to_cpu(ent->lde_hash) & MAX_HASH_HIGHEST_BIT)
1328 ma->ma_attr.la_mode = S_IFDIR;
1330 ma->ma_attr.la_mode = 0;
1331 OBD_ALLOC(name, le16_to_cpu(ent->lde_namelen) + 1);
1333 GOTO(out, rc = -ENOMEM);
1335 memcpy(name, ent->lde_name, le16_to_cpu(ent->lde_namelen));
1336 lname = mdt_name(info->mti_env, name,
1337 le16_to_cpu(ent->lde_namelen));
1338 ma->ma_attr_flags |= (MDS_PERM_BYPASS | MDS_QUOTA_IGNORE);
1339 rc = mdo_name_insert(info->mti_env,
1340 md_object_next(&object->mot_obj),
1342 OBD_FREE(name, le16_to_cpu(ent->lde_namelen) + 1);
1344 CERROR("Can't insert %*.*s, rc %d\n",
1345 le16_to_cpu(ent->lde_namelen),
1346 le16_to_cpu(ent->lde_namelen),
1351 offset += lu_dirent_size(ent);
1361 static int mdt_bulk_timeout(void *data)
1365 CERROR("mdt bulk transfer timeout \n");
1370 static int mdt_writepage(struct mdt_thread_info *info)
1372 struct ptlrpc_request *req = mdt_info_req(info);
1373 struct mdt_body *reqbody;
1374 struct l_wait_info *lwi;
1375 struct ptlrpc_bulk_desc *desc;
1381 reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
1382 if (reqbody == NULL)
1383 RETURN(err_serious(-EFAULT));
1385 desc = ptlrpc_prep_bulk_exp(req, 1, BULK_GET_SINK, MDS_BULK_PORTAL);
1387 RETURN(err_serious(-ENOMEM));
1389 /* allocate the page for the desc */
1390 page = cfs_alloc_page(CFS_ALLOC_STD);
1392 GOTO(desc_cleanup, rc = -ENOMEM);
1394 CDEBUG(D_INFO, "Received page offset %d size %d \n",
1395 (int)reqbody->size, (int)reqbody->nlink);
1397 ptlrpc_prep_bulk_page(desc, page, (int)reqbody->size,
1398 (int)reqbody->nlink);
1400 rc = sptlrpc_svc_prep_bulk(req, desc);
1402 GOTO(cleanup_page, rc);
1404 * Check if client was evicted while we were doing i/o before touching
1409 GOTO(cleanup_page, rc = -ENOMEM);
1411 if (desc->bd_export->exp_failed)
1414 rc = ptlrpc_start_bulk_transfer (desc);
1416 *lwi = LWI_TIMEOUT_INTERVAL(obd_timeout * CFS_HZ / 4, CFS_HZ,
1417 mdt_bulk_timeout, desc);
1418 rc = l_wait_event(desc->bd_waitq, !ptlrpc_bulk_active(desc) ||
1419 desc->bd_export->exp_failed, lwi);
1420 LASSERT(rc == 0 || rc == -ETIMEDOUT);
1421 if (rc == -ETIMEDOUT) {
1422 DEBUG_REQ(D_ERROR, req, "timeout on bulk GET");
1423 ptlrpc_abort_bulk(desc);
1424 } else if (desc->bd_export->exp_failed) {
1425 DEBUG_REQ(D_ERROR, req, "Eviction on bulk GET");
1427 ptlrpc_abort_bulk(desc);
1428 } else if (!desc->bd_success ||
1429 desc->bd_nob_transferred != desc->bd_nob) {
1430 DEBUG_REQ(D_ERROR, req, "%s bulk GET %d(%d)",
1432 "truncated" : "network error on",
1433 desc->bd_nob_transferred, desc->bd_nob);
1434 /* XXX should this be a different errno? */
1438 DEBUG_REQ(D_ERROR, req, "ptlrpc_bulk_get failed: rc %d", rc);
1441 GOTO(cleanup_lwi, rc);
1442 rc = mdt_write_dir_page(info, page, reqbody->nlink);
1447 cfs_free_page(page);
1449 ptlrpc_free_bulk(desc);
1454 static int mdt_readpage(struct mdt_thread_info *info)
1456 struct mdt_object *object = info->mti_object;
1457 struct lu_rdpg *rdpg = &info->mti_u.rdpg.mti_rdpg;
1458 struct mdt_body *reqbody;
1459 struct mdt_body *repbody;
1464 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_READPAGE_PACK))
1465 RETURN(err_serious(-ENOMEM));
1467 reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
1468 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
1469 if (reqbody == NULL || repbody == NULL)
1470 RETURN(err_serious(-EFAULT));
1473 * prepare @rdpg before calling lower layers and transfer itself. Here
1474 * reqbody->size contains offset of where to start to read and
1475 * reqbody->nlink contains number bytes to read.
1477 rdpg->rp_hash = reqbody->size;
1478 if (rdpg->rp_hash != reqbody->size) {
1479 CERROR("Invalid hash: "LPX64" != "LPX64"\n",
1480 rdpg->rp_hash, reqbody->size);
1484 rdpg->rp_attrs = reqbody->mode;
1485 rdpg->rp_count = reqbody->nlink;
1486 rdpg->rp_npages = (rdpg->rp_count + CFS_PAGE_SIZE - 1)>>CFS_PAGE_SHIFT;
1487 OBD_ALLOC(rdpg->rp_pages, rdpg->rp_npages * sizeof rdpg->rp_pages[0]);
1488 if (rdpg->rp_pages == NULL)
1491 for (i = 0; i < rdpg->rp_npages; ++i) {
1492 rdpg->rp_pages[i] = cfs_alloc_page(CFS_ALLOC_STD);
1493 if (rdpg->rp_pages[i] == NULL)
1494 GOTO(free_rdpg, rc = -ENOMEM);
1497 /* call lower layers to fill allocated pages with directory data */
1498 rc = mo_readpage(info->mti_env, mdt_object_child(object), rdpg);
1500 GOTO(free_rdpg, rc);
1502 /* send pages to client */
1503 rc = mdt_sendpage(info, rdpg);
1508 for (i = 0; i < rdpg->rp_npages; i++)
1509 if (rdpg->rp_pages[i] != NULL)
1510 cfs_free_page(rdpg->rp_pages[i]);
1511 OBD_FREE(rdpg->rp_pages, rdpg->rp_npages * sizeof rdpg->rp_pages[0]);
1513 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_SENDPAGE))
1519 static int mdt_reint_internal(struct mdt_thread_info *info,
1520 struct mdt_lock_handle *lhc,
1523 struct req_capsule *pill = info->mti_pill;
1524 struct mdt_device *mdt = info->mti_mdt;
1525 struct md_quota *mq = md_quota(info->mti_env);
1526 struct mdt_body *repbody;
1531 if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER))
1532 req_capsule_set_size(pill, &RMF_MDT_MD, RCL_SERVER,
1533 mdt->mdt_max_mdsize);
1534 if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
1535 req_capsule_set_size(pill, &RMF_LOGCOOKIES, RCL_SERVER,
1536 mdt->mdt_max_cookiesize);
1538 rc = req_capsule_server_pack(pill);
1540 CERROR("Can't pack response, rc %d\n", rc);
1541 RETURN(err_serious(rc));
1544 if (req_capsule_has_field(pill, &RMF_MDT_BODY, RCL_SERVER)) {
1545 repbody = req_capsule_server_get(pill, &RMF_MDT_BODY);
1547 repbody->eadatasize = 0;
1548 repbody->aclsize = 0;
1551 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_UNPACK))
1552 GOTO(out_shrink, rc = err_serious(-EFAULT));
1554 rc = mdt_reint_unpack(info, op);
1556 CERROR("Can't unpack reint, rc %d\n", rc);
1557 GOTO(out_shrink, rc = err_serious(rc));
1560 OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_REINT_DELAY, 10);
1562 /* for replay no cookkie / lmm need, because client have this already */
1563 if (info->mti_spec.no_create == 1) {
1564 if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER))
1565 req_capsule_set_size(pill, &RMF_MDT_MD, RCL_SERVER, 0);
1567 if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
1568 req_capsule_set_size(pill, &RMF_LOGCOOKIES, RCL_SERVER,
1572 rc = mdt_init_ucred_reint(info);
1574 GOTO(out_shrink, rc);
1576 rc = mdt_fix_attr_ucred(info, op);
1578 GOTO(out_ucred, rc = err_serious(rc));
1580 if (mdt_check_resent(info, mdt_reconstruct, lhc)) {
1581 rc = lustre_msg_get_status(mdt_info_req(info)->rq_repmsg);
1582 GOTO(out_ucred, rc);
1584 mq->mq_exp = info->mti_exp;
1585 rc = mdt_reint_rec(info, lhc);
1588 mdt_exit_ucred(info);
1590 mdt_shrink_reply(info);
1594 static long mdt_reint_opcode(struct mdt_thread_info *info,
1595 const struct req_format **fmt)
1597 struct mdt_rec_reint *rec;
1600 opc = err_serious(-EFAULT);
1601 rec = req_capsule_client_get(info->mti_pill, &RMF_REC_REINT);
1603 opc = rec->rr_opcode;
1604 DEBUG_REQ(D_INODE, mdt_info_req(info), "reint opt = %ld", opc);
1605 if (opc < REINT_MAX && fmt[opc] != NULL)
1606 req_capsule_extend(info->mti_pill, fmt[opc]);
1608 CERROR("Unsupported opc: %ld\n", opc);
1609 opc = err_serious(opc);
1615 static int mdt_reint(struct mdt_thread_info *info)
1620 static const struct req_format *reint_fmts[REINT_MAX] = {
1621 [REINT_SETATTR] = &RQF_MDS_REINT_SETATTR,
1622 [REINT_CREATE] = &RQF_MDS_REINT_CREATE,
1623 [REINT_LINK] = &RQF_MDS_REINT_LINK,
1624 [REINT_UNLINK] = &RQF_MDS_REINT_UNLINK,
1625 [REINT_RENAME] = &RQF_MDS_REINT_RENAME,
1626 [REINT_OPEN] = &RQF_MDS_REINT_OPEN,
1627 [REINT_SETXATTR] = &RQF_MDS_REINT_SETXATTR
1632 opc = mdt_reint_opcode(info, reint_fmts);
1635 * No lock possible here from client to pass it to reint code
1638 rc = mdt_reint_internal(info, NULL, opc);
1643 info->mti_fail_id = OBD_FAIL_MDS_REINT_NET_REP;
1647 /* this should sync the whole device */
1648 static int mdt_device_sync(const struct lu_env *env, struct mdt_device *mdt)
1650 struct dt_device *dt = mdt->mdt_bottom;
1654 rc = dt->dd_ops->dt_sync(env, dt);
1658 /* this should sync this object */
1659 static int mdt_object_sync(struct mdt_thread_info *info)
1661 struct md_object *next;
1665 if (!mdt_object_exists(info->mti_object)) {
1666 CWARN("Non existing object "DFID"!\n",
1667 PFID(mdt_object_fid(info->mti_object)));
1670 next = mdt_object_child(info->mti_object);
1671 rc = mo_object_sync(info->mti_env, next);
1676 static int mdt_sync(struct mdt_thread_info *info)
1678 struct req_capsule *pill = info->mti_pill;
1679 struct mdt_body *body;
1683 /* The fid may be zero, so we req_capsule_set manually */
1684 req_capsule_set(pill, &RQF_MDS_SYNC);
1686 body = req_capsule_client_get(pill, &RMF_MDT_BODY);
1688 RETURN(err_serious(-EINVAL));
1690 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_SYNC_PACK))
1691 RETURN(err_serious(-ENOMEM));
1693 if (fid_seq(&body->fid1) == 0) {
1694 /* sync the whole device */
1695 rc = req_capsule_server_pack(pill);
1697 rc = mdt_device_sync(info->mti_env, info->mti_mdt);
1699 rc = err_serious(rc);
1701 /* sync an object */
1702 rc = mdt_unpack_req_pack_rep(info, HABEO_CORPUS|HABEO_REFERO);
1704 rc = mdt_object_sync(info);
1706 struct md_object *next;
1707 const struct lu_fid *fid;
1708 struct lu_attr *la = &info->mti_attr.ma_attr;
1710 next = mdt_object_child(info->mti_object);
1711 info->mti_attr.ma_need = MA_INODE;
1712 info->mti_attr.ma_valid = 0;
1713 rc = mo_attr_get(info->mti_env, next,
1716 body = req_capsule_server_get(pill,
1718 fid = mdt_object_fid(info->mti_object);
1719 mdt_pack_attr2body(info, body, la, fid);
1723 rc = err_serious(rc);
1728 #ifdef HAVE_QUOTA_SUPPORT
1729 static int mdt_quotacheck_handle(struct mdt_thread_info *info)
1731 struct obd_quotactl *oqctl;
1732 struct req_capsule *pill = info->mti_pill;
1733 struct obd_export *exp = info->mti_exp;
1734 struct md_quota *mq = md_quota(info->mti_env);
1735 struct md_device *next = info->mti_mdt->mdt_child;
1739 oqctl = req_capsule_client_get(pill, &RMF_OBD_QUOTACTL);
1743 /* remote client has no permission for quotacheck */
1744 if (unlikely(exp_connect_rmtclient(exp)))
1747 rc = req_capsule_server_pack(pill);
1752 rc = next->md_ops->mdo_quota.mqo_check(info->mti_env, next,
1757 static int mdt_quotactl_handle(struct mdt_thread_info *info)
1759 struct obd_quotactl *oqctl, *repoqc;
1760 struct req_capsule *pill = info->mti_pill;
1761 struct obd_export *exp = info->mti_exp;
1762 struct md_quota *mq = md_quota(info->mti_env);
1763 struct md_device *next = info->mti_mdt->mdt_child;
1764 const struct md_quota_operations *mqo = &next->md_ops->mdo_quota;
1768 oqctl = req_capsule_client_get(pill, &RMF_OBD_QUOTACTL);
1773 if (exp_connect_rmtclient(exp)) {
1774 struct ptlrpc_request *req = mdt_info_req(info);
1775 struct mdt_export_data *med = mdt_req2med(req);
1776 struct lustre_idmap_table *idmap = med->med_idmap;
1778 if (unlikely(oqctl->qc_cmd != Q_GETQUOTA &&
1779 oqctl->qc_cmd != Q_GETINFO))
1783 if (oqctl->qc_type == USRQUOTA)
1784 id = lustre_idmap_lookup_uid(NULL, idmap, 0,
1786 else if (oqctl->qc_type == GRPQUOTA)
1787 id = lustre_idmap_lookup_gid(NULL, idmap, 0,
1792 if (id == CFS_IDMAP_NOTFOUND) {
1793 CDEBUG(D_QUOTA, "no mapping for id %u\n",
1799 rc = req_capsule_server_pack(pill);
1803 repoqc = req_capsule_server_get(pill, &RMF_OBD_QUOTACTL);
1804 LASSERT(repoqc != NULL);
1807 switch (oqctl->qc_cmd) {
1809 rc = mqo->mqo_on(info->mti_env, next, oqctl->qc_type);
1812 rc = mqo->mqo_off(info->mti_env, next, oqctl->qc_type);
1815 rc = mqo->mqo_setinfo(info->mti_env, next, oqctl->qc_type, id,
1819 rc = mqo->mqo_getinfo(info->mti_env, next, oqctl->qc_type, id,
1823 rc = mqo->mqo_setquota(info->mti_env, next, oqctl->qc_type, id,
1827 rc = mqo->mqo_getquota(info->mti_env, next, oqctl->qc_type, id,
1831 rc = mqo->mqo_getoinfo(info->mti_env, next, oqctl->qc_type, id,
1835 rc = mqo->mqo_getoquota(info->mti_env, next, oqctl->qc_type, id,
1838 case LUSTRE_Q_INVALIDATE:
1839 rc = mqo->mqo_invalidate(info->mti_env, next, oqctl->qc_type);
1841 case LUSTRE_Q_FINVALIDATE:
1842 rc = mqo->mqo_finvalidate(info->mti_env, next, oqctl->qc_type);
1845 CERROR("unsupported mdt_quotactl command: %d\n",
1857 * OBD PING and other handlers.
1859 static int mdt_obd_ping(struct mdt_thread_info *info)
1864 req_capsule_set(info->mti_pill, &RQF_OBD_PING);
1866 rc = target_handle_ping(mdt_info_req(info));
1868 rc = err_serious(rc);
1872 static int mdt_obd_log_cancel(struct mdt_thread_info *info)
1874 return err_serious(-EOPNOTSUPP);
1877 static int mdt_obd_qc_callback(struct mdt_thread_info *info)
1879 return err_serious(-EOPNOTSUPP);
1887 /** clone llog ctxt from child (mdd)
1888 * This allows remote llog (replicator) access.
1889 * We can either pass all llog RPCs (eg mdt_llog_create) on to child where the
1890 * context was originally set up, or we can handle them directly.
1891 * I choose the latter, but that means I need any llog
1892 * contexts set up by child to be accessable by the mdt. So we clone the
1893 * context into our context list here.
1895 static int mdt_llog_ctxt_clone(const struct lu_env *env, struct mdt_device *mdt,
1898 struct md_device *next = mdt->mdt_child;
1899 struct llog_ctxt *ctxt;
1902 if (!llog_ctxt_null(mdt2obd_dev(mdt), idx))
1905 rc = next->md_ops->mdo_llog_ctxt_get(env, next, idx, (void **)&ctxt);
1906 if (rc || ctxt == NULL) {
1907 CERROR("Can't get mdd ctxt %d\n", rc);
1911 rc = llog_group_set_ctxt(&mdt2obd_dev(mdt)->obd_olg, ctxt, idx);
1913 CERROR("Can't set mdt ctxt %d\n", rc);
1918 static int mdt_llog_ctxt_unclone(const struct lu_env *env,
1919 struct mdt_device *mdt, int idx)
1921 struct llog_ctxt *ctxt;
1923 ctxt = llog_get_context(mdt2obd_dev(mdt), idx);
1926 /* Put once for the get we just did, and once for the clone */
1927 llog_ctxt_put(ctxt);
1928 llog_ctxt_put(ctxt);
1932 static int mdt_llog_create(struct mdt_thread_info *info)
1936 req_capsule_set(info->mti_pill, &RQF_LLOG_ORIGIN_HANDLE_CREATE);
1937 rc = llog_origin_handle_create(mdt_info_req(info));
1938 return (rc < 0 ? err_serious(rc) : rc);
1941 static int mdt_llog_destroy(struct mdt_thread_info *info)
1945 req_capsule_set(info->mti_pill, &RQF_LLOG_ORIGIN_HANDLE_DESTROY);
1946 rc = llog_origin_handle_destroy(mdt_info_req(info));
1947 return (rc < 0 ? err_serious(rc) : rc);
1950 static int mdt_llog_read_header(struct mdt_thread_info *info)
1954 req_capsule_set(info->mti_pill, &RQF_LLOG_ORIGIN_HANDLE_READ_HEADER);
1955 rc = llog_origin_handle_read_header(mdt_info_req(info));
1956 return (rc < 0 ? err_serious(rc) : rc);
1959 static int mdt_llog_next_block(struct mdt_thread_info *info)
1963 req_capsule_set(info->mti_pill, &RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK);
1964 rc = llog_origin_handle_next_block(mdt_info_req(info));
1965 return (rc < 0 ? err_serious(rc) : rc);
1968 static int mdt_llog_prev_block(struct mdt_thread_info *info)
1972 req_capsule_set(info->mti_pill, &RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK);
1973 rc = llog_origin_handle_prev_block(mdt_info_req(info));
1974 return (rc < 0 ? err_serious(rc) : rc);
1981 static struct ldlm_callback_suite cbs = {
1982 .lcs_completion = ldlm_server_completion_ast,
1983 .lcs_blocking = ldlm_server_blocking_ast,
1987 static int mdt_enqueue(struct mdt_thread_info *info)
1989 struct ptlrpc_request *req;
1993 * info->mti_dlm_req already contains swapped and (if necessary)
1994 * converted dlm request.
1996 LASSERT(info->mti_dlm_req != NULL);
1998 req = mdt_info_req(info);
1999 rc = ldlm_handle_enqueue0(info->mti_mdt->mdt_namespace,
2000 req, info->mti_dlm_req, &cbs);
2001 info->mti_fail_id = OBD_FAIL_LDLM_REPLY;
2002 return rc ? err_serious(rc) : req->rq_status;
2005 static int mdt_convert(struct mdt_thread_info *info)
2008 struct ptlrpc_request *req;
2010 LASSERT(info->mti_dlm_req);
2011 req = mdt_info_req(info);
2012 rc = ldlm_handle_convert0(req, info->mti_dlm_req);
2013 return rc ? err_serious(rc) : req->rq_status;
2016 static int mdt_bl_callback(struct mdt_thread_info *info)
2018 CERROR("bl callbacks should not happen on MDS\n");
2020 return err_serious(-EOPNOTSUPP);
2023 static int mdt_cp_callback(struct mdt_thread_info *info)
2025 CERROR("cp callbacks should not happen on MDS\n");
2027 return err_serious(-EOPNOTSUPP);
2031 * sec context handlers
2033 static int mdt_sec_ctx_handle(struct mdt_thread_info *info)
2037 rc = mdt_handle_idmap(info);
2040 struct ptlrpc_request *req = mdt_info_req(info);
2043 opc = lustre_msg_get_opc(req->rq_reqmsg);
2044 if (opc == SEC_CTX_INIT || opc == SEC_CTX_INIT_CONT)
2045 sptlrpc_svc_ctx_invalidate(req);
2048 OBD_FAIL_TIMEOUT(OBD_FAIL_SEC_CTX_HDL_PAUSE, obd_fail_val);
2053 static struct mdt_object *mdt_obj(struct lu_object *o)
2055 LASSERT(lu_device_is_mdt(o->lo_dev));
2056 return container_of0(o, struct mdt_object, mot_obj.mo_lu);
2059 struct mdt_object *mdt_object_find(const struct lu_env *env,
2060 struct mdt_device *d,
2061 const struct lu_fid *f)
2063 struct lu_object *o;
2064 struct mdt_object *m;
2067 CDEBUG(D_INFO, "Find object for "DFID"\n", PFID(f));
2068 o = lu_object_find(env, &d->mdt_md_dev.md_lu_dev, f, NULL);
2069 if (unlikely(IS_ERR(o)))
2070 m = (struct mdt_object *)o;
2077 * Asyncronous commit for mdt device.
2079 * Pass asynchonous commit call down the MDS stack.
2081 * \param env environment
2082 * \param mdt the mdt device
2084 static void mdt_device_commit_async(const struct lu_env *env,
2085 struct mdt_device *mdt)
2087 struct dt_device *dt = mdt->mdt_bottom;
2090 rc = dt->dd_ops->dt_commit_async(env, dt);
2091 if (unlikely(rc != 0))
2092 CWARN("async commit start failed with rc = %d", rc);
2096 * Mark the lock as "synchonous".
2098 * Mark the lock to deffer transaction commit to the unlock time.
2100 * \param lock the lock to mark as "synchonous"
2102 * \see mdt_is_lock_sync
2103 * \see mdt_save_lock
2105 static inline void mdt_set_lock_sync(struct ldlm_lock *lock)
2107 lock->l_ast_data = (void*)1;
2111 * Check whehter the lock "synchonous" or not.
2113 * \param lock the lock to check
2114 * \retval 1 the lock is "synchonous"
2115 * \retval 0 the lock isn't "synchronous"
2117 * \see mdt_set_lock_sync
2118 * \see mdt_save_lock
2120 static inline int mdt_is_lock_sync(struct ldlm_lock *lock)
2122 return lock->l_ast_data != NULL;
2126 * Blocking AST for mdt locks.
2128 * Starts transaction commit if in case of COS lock conflict or
2129 * deffers such a commit to the mdt_save_lock.
2131 * \param lock the lock which blocks a request or cancelling lock
2132 * \param desc unused
2133 * \param data unused
2134 * \param flag indicates whether this cancelling or blocking callback
2136 * \see ldlm_blocking_ast_nocheck
2138 int mdt_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
2139 void *data, int flag)
2141 struct obd_device *obd = ldlm_lock_to_ns(lock)->ns_obd;
2142 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
2146 if (flag == LDLM_CB_CANCELING)
2148 lock_res_and_lock(lock);
2149 if (lock->l_blocking_ast != mdt_blocking_ast) {
2150 unlock_res_and_lock(lock);
2153 if (mdt_cos_is_enabled(mdt) &&
2154 lock->l_req_mode & (LCK_PW | LCK_EX) &&
2155 lock->l_blocking_lock != NULL &&
2156 lock->l_client_cookie != lock->l_blocking_lock->l_client_cookie) {
2157 mdt_set_lock_sync(lock);
2159 rc = ldlm_blocking_ast_nocheck(lock);
2161 /* There is no lock conflict if l_blocking_lock == NULL,
2162 * it indicates a blocking ast sent from ldlm_lock_decref_internal
2163 * when the last reference to a local lock was released */
2164 if (lock->l_req_mode == LCK_COS && lock->l_blocking_lock != NULL) {
2167 rc = lu_env_init(&env, LCT_MD_THREAD);
2168 if (unlikely(rc != 0))
2169 CWARN("lu_env initialization failed with rc = %d,"
2170 "cannot start asynchronous commit\n", rc);
2172 mdt_device_commit_async(&env, mdt);
2178 int mdt_object_lock(struct mdt_thread_info *info, struct mdt_object *o,
2179 struct mdt_lock_handle *lh, __u64 ibits, int locality)
2181 struct ldlm_namespace *ns = info->mti_mdt->mdt_namespace;
2182 ldlm_policy_data_t *policy = &info->mti_policy;
2183 struct ldlm_res_id *res_id = &info->mti_res_id;
2187 LASSERT(!lustre_handle_is_used(&lh->mlh_reg_lh));
2188 LASSERT(!lustre_handle_is_used(&lh->mlh_pdo_lh));
2189 LASSERT(lh->mlh_reg_mode != LCK_MINMODE);
2190 LASSERT(lh->mlh_type != MDT_NUL_LOCK);
2192 if (mdt_object_exists(o) < 0) {
2193 if (locality == MDT_CROSS_LOCK) {
2194 /* cross-ref object fix */
2195 ibits &= ~MDS_INODELOCK_UPDATE;
2196 ibits |= MDS_INODELOCK_LOOKUP;
2198 LASSERT(!(ibits & MDS_INODELOCK_UPDATE));
2199 LASSERT(ibits & MDS_INODELOCK_LOOKUP);
2201 /* No PDO lock on remote object */
2202 LASSERT(lh->mlh_type != MDT_PDO_LOCK);
2205 if (lh->mlh_type == MDT_PDO_LOCK) {
2206 /* check for exists after object is locked */
2207 if (mdt_object_exists(o) == 0) {
2208 /* Non-existent object shouldn't have PDO lock */
2211 /* Non-dir object shouldn't have PDO lock */
2212 LASSERT(S_ISDIR(lu_object_attr(&o->mot_obj.mo_lu)));
2216 memset(policy, 0, sizeof(*policy));
2217 fid_build_reg_res_name(mdt_object_fid(o), res_id);
2220 * Take PDO lock on whole directory and build correct @res_id for lock
2221 * on part of directory.
2223 if (lh->mlh_pdo_hash != 0) {
2224 LASSERT(lh->mlh_type == MDT_PDO_LOCK);
2225 mdt_lock_pdo_mode(info, o, lh);
2226 if (lh->mlh_pdo_mode != LCK_NL) {
2228 * Do not use LDLM_FL_LOCAL_ONLY for parallel lock, it
2229 * is never going to be sent to client and we do not
2230 * want it slowed down due to possible cancels.
2232 policy->l_inodebits.bits = MDS_INODELOCK_UPDATE;
2233 rc = mdt_fid_lock(ns, &lh->mlh_pdo_lh, lh->mlh_pdo_mode,
2234 policy, res_id, LDLM_FL_ATOMIC_CB,
2235 &info->mti_exp->exp_handle.h_cookie);
2241 * Finish res_id initializing by name hash marking part of
2242 * directory which is taking modification.
2244 res_id->name[LUSTRE_RES_ID_HSH_OFF] = lh->mlh_pdo_hash;
2247 policy->l_inodebits.bits = ibits;
2250 * Use LDLM_FL_LOCAL_ONLY for this lock. We do not know yet if it is
2251 * going to be sent to client. If it is - mdt_intent_policy() path will
2252 * fix it up and turn FL_LOCAL flag off.
2254 rc = mdt_fid_lock(ns, &lh->mlh_reg_lh, lh->mlh_reg_mode, policy,
2255 res_id, LDLM_FL_LOCAL_ONLY | LDLM_FL_ATOMIC_CB,
2256 &info->mti_exp->exp_handle.h_cookie);
2258 mdt_object_unlock(info, o, lh, 1);
2259 else if (unlikely(OBD_FAIL_PRECHECK(OBD_FAIL_MDS_PDO_LOCK)) &&
2260 lh->mlh_pdo_hash != 0 &&
2261 (lh->mlh_reg_mode == LCK_PW || lh->mlh_reg_mode == LCK_EX)) {
2262 OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_PDO_LOCK, 10);
2269 * Save a lock within request object.
2271 * Keep the lock referenced until whether client ACK or transaction
2272 * commit happens or release the lock immediately depending on input
2273 * parameters. If COS is ON, a write lock is converted to COS lock
2276 * \param info thead info object
2277 * \param h lock handle
2278 * \param mode lock mode
2279 * \param decref force immediate lock releasing
2282 void mdt_save_lock(struct mdt_thread_info *info, struct lustre_handle *h,
2283 ldlm_mode_t mode, int decref)
2287 if (lustre_handle_is_used(h)) {
2288 if (decref || !info->mti_has_trans ||
2289 !(mode & (LCK_PW | LCK_EX))){
2290 mdt_fid_unlock(h, mode);
2292 struct mdt_device *mdt = info->mti_mdt;
2293 struct ldlm_lock *lock = ldlm_handle2lock(h);
2294 struct ptlrpc_request *req = mdt_info_req(info);
2297 LASSERTF(lock != NULL, "no lock for cookie "LPX64"\n",
2299 CDEBUG(D_HA, "request = %p reply state = %p"
2300 " transno = "LPD64"\n",
2301 req, req->rq_reply_state, req->rq_transno);
2302 if (mdt_cos_is_enabled(mdt)) {
2304 ldlm_lock_downgrade(lock, LCK_COS);
2307 ptlrpc_save_lock(req, h, mode, no_ack);
2308 if (mdt_is_lock_sync(lock)) {
2309 CDEBUG(D_HA, "found sync-lock,"
2310 " async commit started\n");
2311 mdt_device_commit_async(info->mti_env,
2314 LDLM_LOCK_PUT(lock);
2323 * Unlock mdt object.
2325 * Immeditely release the regular lock and the PDO lock or save the
2326 * lock in reqeuest and keep them referenced until client ACK or
2327 * transaction commit.
2329 * \param info thread info object
2330 * \param o mdt object
2331 * \param lh mdt lock handle referencing regular and PDO locks
2332 * \param decref force immediate lock releasing
2334 void mdt_object_unlock(struct mdt_thread_info *info, struct mdt_object *o,
2335 struct mdt_lock_handle *lh, int decref)
2339 mdt_save_lock(info, &lh->mlh_pdo_lh, lh->mlh_pdo_mode, decref);
2340 mdt_save_lock(info, &lh->mlh_reg_lh, lh->mlh_reg_mode, decref);
2345 struct mdt_object *mdt_object_find_lock(struct mdt_thread_info *info,
2346 const struct lu_fid *f,
2347 struct mdt_lock_handle *lh,
2350 struct mdt_object *o;
2352 o = mdt_object_find(info->mti_env, info->mti_mdt, f);
2356 rc = mdt_object_lock(info, o, lh, ibits,
2359 mdt_object_put(info->mti_env, o);
2366 void mdt_object_unlock_put(struct mdt_thread_info * info,
2367 struct mdt_object * o,
2368 struct mdt_lock_handle *lh,
2371 mdt_object_unlock(info, o, lh, decref);
2372 mdt_object_put(info->mti_env, o);
2375 static struct mdt_handler *mdt_handler_find(__u32 opc,
2376 struct mdt_opc_slice *supported)
2378 struct mdt_opc_slice *s;
2379 struct mdt_handler *h;
2382 for (s = supported; s->mos_hs != NULL; s++) {
2383 if (s->mos_opc_start <= opc && opc < s->mos_opc_end) {
2384 h = s->mos_hs + (opc - s->mos_opc_start);
2385 if (likely(h->mh_opc != 0))
2386 LASSERTF(h->mh_opc == opc,
2387 "opcode mismatch %d != %d\n",
2390 h = NULL; /* unsupported opc */
2397 static int mdt_lock_resname_compat(struct mdt_device *m,
2398 struct ldlm_request *req)
2400 /* XXX something... later. */
2404 static int mdt_lock_reply_compat(struct mdt_device *m, struct ldlm_reply *rep)
2406 /* XXX something... later. */
2411 * Generic code handling requests that have struct mdt_body passed in:
2413 * - extract mdt_body from request and save it in @info, if present;
2415 * - create lu_object, corresponding to the fid in mdt_body, and save it in
2418 * - if HABEO_CORPUS flag is set for this request type check whether object
2419 * actually exists on storage (lu_object_exists()).
2422 static int mdt_body_unpack(struct mdt_thread_info *info, __u32 flags)
2424 const struct mdt_body *body;
2425 struct mdt_object *obj;
2426 const struct lu_env *env;
2427 struct req_capsule *pill;
2431 env = info->mti_env;
2432 pill = info->mti_pill;
2434 body = info->mti_body = req_capsule_client_get(pill, &RMF_MDT_BODY);
2438 if (!(body->valid & OBD_MD_FLID))
2441 if (!fid_is_sane(&body->fid1)) {
2442 CERROR("Invalid fid: "DFID"\n", PFID(&body->fid1));
2447 * Do not get size or any capa fields before we check that request
2448 * contains capa actually. There are some requests which do not, for
2449 * instance MDS_IS_SUBDIR.
2451 if (req_capsule_has_field(pill, &RMF_CAPA1, RCL_CLIENT) &&
2452 req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
2453 mdt_set_capainfo(info, 0, &body->fid1,
2454 req_capsule_client_get(pill, &RMF_CAPA1));
2456 obj = mdt_object_find(env, info->mti_mdt, &body->fid1);
2458 if ((flags & HABEO_CORPUS) &&
2459 !mdt_object_exists(obj)) {
2460 mdt_object_put(env, obj);
2461 /* for capability renew ENOENT will be handled in
2463 if (body->valid & OBD_MD_FLOSSCAPA)
2468 info->mti_object = obj;
2477 static int mdt_unpack_req_pack_rep(struct mdt_thread_info *info, __u32 flags)
2479 struct req_capsule *pill = info->mti_pill;
2483 if (req_capsule_has_field(pill, &RMF_MDT_BODY, RCL_CLIENT))
2484 rc = mdt_body_unpack(info, flags);
2488 if (rc == 0 && (flags & HABEO_REFERO)) {
2489 struct mdt_device *mdt = info->mti_mdt;
2493 if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER))
2494 req_capsule_set_size(pill, &RMF_MDT_MD, RCL_SERVER,
2495 mdt->mdt_max_mdsize);
2496 if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
2497 req_capsule_set_size(pill, &RMF_LOGCOOKIES, RCL_SERVER,
2498 mdt->mdt_max_cookiesize);
2500 rc = req_capsule_server_pack(pill);
2505 static int mdt_init_capa_ctxt(const struct lu_env *env, struct mdt_device *m)
2507 struct md_device *next = m->mdt_child;
2509 return next->md_ops->mdo_init_capa_ctxt(env, next,
2510 m->mdt_opts.mo_mds_capa,
2511 m->mdt_capa_timeout,
2517 * Invoke handler for this request opc. Also do necessary preprocessing
2518 * (according to handler ->mh_flags), and post-processing (setting of
2519 * ->last_{xid,committed}).
2521 static int mdt_req_handle(struct mdt_thread_info *info,
2522 struct mdt_handler *h, struct ptlrpc_request *req)
2524 int rc, serious = 0;
2529 LASSERT(h->mh_act != NULL);
2530 LASSERT(h->mh_opc == lustre_msg_get_opc(req->rq_reqmsg));
2531 LASSERT(current->journal_info == NULL);
2534 * Checking for various OBD_FAIL_$PREF_$OPC_NET codes. _Do_ not try
2535 * to put same checks into handlers like mdt_close(), mdt_reint(),
2536 * etc., without talking to mdt authors first. Checking same thing
2537 * there again is useless and returning 0 error without packing reply
2538 * is buggy! Handlers either pack reply or return error.
2540 * We return 0 here and do not send any reply in order to emulate
2541 * network failure. Do not send any reply in case any of NET related
2542 * fail_id has occured.
2544 if (OBD_FAIL_CHECK_ORSET(h->mh_fail_id, OBD_FAIL_ONCE))
2548 flags = h->mh_flags;
2549 LASSERT(ergo(flags & (HABEO_CORPUS|HABEO_REFERO), h->mh_fmt != NULL));
2551 if (h->mh_fmt != NULL) {
2552 req_capsule_set(info->mti_pill, h->mh_fmt);
2553 rc = mdt_unpack_req_pack_rep(info, flags);
2556 if (rc == 0 && flags & MUTABOR &&
2557 req->rq_export->exp_connect_flags & OBD_CONNECT_RDONLY)
2558 /* should it be rq_status? */
2561 if (rc == 0 && flags & HABEO_CLAVIS) {
2562 struct ldlm_request *dlm_req;
2564 LASSERT(h->mh_fmt != NULL);
2566 dlm_req = req_capsule_client_get(info->mti_pill, &RMF_DLM_REQ);
2567 if (dlm_req != NULL) {
2568 if (unlikely(dlm_req->lock_desc.l_resource.lr_type ==
2570 dlm_req->lock_desc.l_policy_data.\
2571 l_inodebits.bits == 0)) {
2573 * Lock without inodebits makes no sense and
2574 * will oops later in ldlm. If client miss to
2575 * set such bits, do not trigger ASSERTION.
2577 * For liblustre flock case, it maybe zero.
2581 if (info->mti_mdt->mdt_opts.mo_compat_resname)
2582 rc = mdt_lock_resname_compat(
2585 info->mti_dlm_req = dlm_req;
2592 /* capability setting changed via /proc, needs reinitialize ctxt */
2593 if (info->mti_mdt && info->mti_mdt->mdt_capa_conf) {
2594 mdt_init_capa_ctxt(info->mti_env, info->mti_mdt);
2595 info->mti_mdt->mdt_capa_conf = 0;
2598 if (likely(rc == 0)) {
2600 * Process request, there can be two types of rc:
2601 * 1) errors with msg unpack/pack, other failures outside the
2602 * operation itself. This is counted as serious errors;
2603 * 2) errors during fs operation, should be placed in rq_status
2606 rc = h->mh_act(info);
2608 !req->rq_no_reply && req->rq_reply_state == NULL) {
2609 DEBUG_REQ(D_ERROR, req, "MDT \"handler\" %s did not "
2610 "pack reply and returned 0 error\n",
2614 serious = is_serious(rc);
2615 rc = clear_serious(rc);
2619 req->rq_status = rc;
2622 * ELDLM_* codes which > 0 should be in rq_status only as well as
2623 * all non-serious errors.
2625 if (rc > 0 || !serious)
2628 LASSERT(current->journal_info == NULL);
2630 if (rc == 0 && (flags & HABEO_CLAVIS) &&
2631 info->mti_mdt->mdt_opts.mo_compat_resname) {
2632 struct ldlm_reply *dlmrep;
2634 dlmrep = req_capsule_server_get(info->mti_pill, &RMF_DLM_REP);
2636 rc = mdt_lock_reply_compat(info->mti_mdt, dlmrep);
2639 /* If we're DISCONNECTing, the mdt_export_data is already freed */
2640 if (likely(rc == 0 && req->rq_export && h->mh_opc != MDS_DISCONNECT))
2641 target_committed_to_req(req);
2643 if (unlikely(req_is_replay(req) &&
2644 lustre_msg_get_transno(req->rq_reqmsg) == 0)) {
2645 DEBUG_REQ(D_ERROR, req, "transno is 0 during REPLAY");
2649 target_send_reply(req, rc, info->mti_fail_id);
2653 void mdt_lock_handle_init(struct mdt_lock_handle *lh)
2655 lh->mlh_type = MDT_NUL_LOCK;
2656 lh->mlh_reg_lh.cookie = 0ull;
2657 lh->mlh_reg_mode = LCK_MINMODE;
2658 lh->mlh_pdo_lh.cookie = 0ull;
2659 lh->mlh_pdo_mode = LCK_MINMODE;
2662 void mdt_lock_handle_fini(struct mdt_lock_handle *lh)
2664 LASSERT(!lustre_handle_is_used(&lh->mlh_reg_lh));
2665 LASSERT(!lustre_handle_is_used(&lh->mlh_pdo_lh));
2669 * Initialize fields of struct mdt_thread_info. Other fields are left in
2670 * uninitialized state, because it's too expensive to zero out whole
2671 * mdt_thread_info (> 1K) on each request arrival.
2673 static void mdt_thread_info_init(struct ptlrpc_request *req,
2674 struct mdt_thread_info *info)
2677 struct md_capainfo *ci;
2679 req_capsule_init(&req->rq_pill, req, RCL_SERVER);
2680 info->mti_pill = &req->rq_pill;
2683 for (i = 0; i < ARRAY_SIZE(info->mti_lh); i++)
2684 mdt_lock_handle_init(&info->mti_lh[i]);
2686 /* mdt device: it can be NULL while CONNECT */
2687 if (req->rq_export) {
2688 info->mti_mdt = mdt_dev(req->rq_export->exp_obd->obd_lu_dev);
2689 info->mti_exp = req->rq_export;
2691 info->mti_mdt = NULL;
2692 info->mti_env = req->rq_svc_thread->t_env;
2693 ci = md_capainfo(info->mti_env);
2694 memset(ci, 0, sizeof *ci);
2695 if (req->rq_export) {
2696 if (exp_connect_rmtclient(req->rq_export))
2697 ci->mc_auth = LC_ID_CONVERT;
2698 else if (req->rq_export->exp_connect_flags &
2699 OBD_CONNECT_MDS_CAPA)
2700 ci->mc_auth = LC_ID_PLAIN;
2702 ci->mc_auth = LC_ID_NONE;
2705 info->mti_fail_id = OBD_FAIL_MDS_ALL_REPLY_NET;
2706 info->mti_transno = lustre_msg_get_transno(req->rq_reqmsg);
2707 info->mti_mos = NULL;
2709 memset(&info->mti_attr, 0, sizeof(info->mti_attr));
2710 info->mti_body = NULL;
2711 info->mti_object = NULL;
2712 info->mti_dlm_req = NULL;
2713 info->mti_has_trans = 0;
2714 info->mti_no_need_trans = 0;
2715 info->mti_cross_ref = 0;
2716 info->mti_opdata = 0;
2718 /* To not check for split by default. */
2719 info->mti_spec.sp_ck_split = 0;
2720 info->mti_spec.no_create = 0;
2723 static void mdt_thread_info_fini(struct mdt_thread_info *info)
2727 req_capsule_fini(info->mti_pill);
2728 if (info->mti_object != NULL) {
2730 * freeing an object may lead to OSD level transaction, do not
2731 * let it mess with MDT. bz19385.
2733 info->mti_no_need_trans = 1;
2734 mdt_object_put(info->mti_env, info->mti_object);
2735 info->mti_object = NULL;
2737 for (i = 0; i < ARRAY_SIZE(info->mti_lh); i++)
2738 mdt_lock_handle_fini(&info->mti_lh[i]);
2739 info->mti_env = NULL;
2742 static int mdt_filter_recovery_request(struct ptlrpc_request *req,
2743 struct obd_device *obd, int *process)
2745 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
2746 case MDS_CONNECT: /* This will never get here, but for completeness. */
2747 case OST_CONNECT: /* This will never get here, but for completeness. */
2748 case MDS_DISCONNECT:
2749 case OST_DISCONNECT:
2754 case MDS_DONE_WRITING:
2755 case MDS_SYNC: /* used in unmounting */
2761 *process = target_queue_recovery_request(req, obd);
2765 DEBUG_REQ(D_ERROR, req, "not permitted during recovery");
2772 * Handle recovery. Return:
2773 * +1: continue request processing;
2774 * -ve: abort immediately with the given error code;
2775 * 0: send reply with error code in req->rq_status;
2777 static int mdt_recovery(struct mdt_thread_info *info)
2779 struct ptlrpc_request *req = mdt_info_req(info);
2780 struct obd_device *obd;
2784 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
2787 case SEC_CTX_INIT_CONT:
2793 rc = mdt_handle_idmap(info);
2802 if (unlikely(!class_connected_export(req->rq_export))) {
2803 CERROR("operation %d on unconnected MDS from %s\n",
2804 lustre_msg_get_opc(req->rq_reqmsg),
2805 libcfs_id2str(req->rq_peer));
2806 /* FIXME: For CMD cleanup, when mds_B stop, the req from
2807 * mds_A will get -ENOTCONN(especially for ping req),
2808 * which will cause that mds_A deactive timeout, then when
2809 * mds_A cleanup, the cleanup process will be suspended since
2810 * deactive timeout is not zero.
2812 req->rq_status = -ENOTCONN;
2813 target_send_reply(req, -ENOTCONN, info->mti_fail_id);
2817 /* sanity check: if the xid matches, the request must be marked as a
2818 * resent or replayed */
2819 if (req_xid_is_last(req)) {
2820 if (!(lustre_msg_get_flags(req->rq_reqmsg) &
2821 (MSG_RESENT | MSG_REPLAY))) {
2822 DEBUG_REQ(D_WARNING, req, "rq_xid "LPU64" matches last_xid, "
2823 "expected REPLAY or RESENT flag (%x)", req->rq_xid,
2824 lustre_msg_get_flags(req->rq_reqmsg));
2826 req->rq_status = -ENOTCONN;
2831 /* else: note the opposite is not always true; a RESENT req after a
2832 * failover will usually not match the last_xid, since it was likely
2833 * never committed. A REPLAYed request will almost never match the
2834 * last xid, however it could for a committed, but still retained,
2837 obd = req->rq_export->exp_obd;
2839 /* Check for aborted recovery... */
2840 if (unlikely(obd->obd_recovering)) {
2843 DEBUG_REQ(D_INFO, req, "Got new replay");
2844 rc = mdt_filter_recovery_request(req, obd, &should_process);
2845 if (rc != 0 || !should_process)
2847 else if (should_process < 0) {
2848 req->rq_status = should_process;
2849 rc = ptlrpc_error(req);
2856 static int mdt_msg_check_version(struct lustre_msg *msg)
2860 switch (lustre_msg_get_opc(msg)) {
2862 case MDS_DISCONNECT:
2865 case SEC_CTX_INIT_CONT:
2867 rc = lustre_msg_check_version(msg, LUSTRE_OBD_VERSION);
2869 CERROR("bad opc %u version %08x, expecting %08x\n",
2870 lustre_msg_get_opc(msg),
2871 lustre_msg_get_version(msg),
2872 LUSTRE_OBD_VERSION);
2876 case MDS_GETATTR_NAME:
2883 case MDS_DONE_WRITING:
2890 case MDS_QUOTACHECK:
2896 rc = lustre_msg_check_version(msg, LUSTRE_MDS_VERSION);
2898 CERROR("bad opc %u version %08x, expecting %08x\n",
2899 lustre_msg_get_opc(msg),
2900 lustre_msg_get_version(msg),
2901 LUSTRE_MDS_VERSION);
2905 case LDLM_BL_CALLBACK:
2906 case LDLM_CP_CALLBACK:
2907 rc = lustre_msg_check_version(msg, LUSTRE_DLM_VERSION);
2909 CERROR("bad opc %u version %08x, expecting %08x\n",
2910 lustre_msg_get_opc(msg),
2911 lustre_msg_get_version(msg),
2912 LUSTRE_DLM_VERSION);
2914 case OBD_LOG_CANCEL:
2915 case LLOG_ORIGIN_HANDLE_CREATE:
2916 case LLOG_ORIGIN_HANDLE_NEXT_BLOCK:
2917 case LLOG_ORIGIN_HANDLE_READ_HEADER:
2918 case LLOG_ORIGIN_HANDLE_CLOSE:
2919 case LLOG_ORIGIN_HANDLE_DESTROY:
2920 case LLOG_ORIGIN_HANDLE_PREV_BLOCK:
2922 rc = lustre_msg_check_version(msg, LUSTRE_LOG_VERSION);
2924 CERROR("bad opc %u version %08x, expecting %08x\n",
2925 lustre_msg_get_opc(msg),
2926 lustre_msg_get_version(msg),
2927 LUSTRE_LOG_VERSION);
2930 CERROR("MDS unknown opcode %d\n", lustre_msg_get_opc(msg));
2936 static int mdt_handle0(struct ptlrpc_request *req,
2937 struct mdt_thread_info *info,
2938 struct mdt_opc_slice *supported)
2940 struct mdt_handler *h;
2941 struct lustre_msg *msg;
2946 if (OBD_FAIL_CHECK_ORSET(OBD_FAIL_MDS_ALL_REQUEST_NET, OBD_FAIL_ONCE))
2949 LASSERT(current->journal_info == NULL);
2951 msg = req->rq_reqmsg;
2952 rc = mdt_msg_check_version(msg);
2953 if (likely(rc == 0)) {
2954 rc = mdt_recovery(info);
2955 if (likely(rc == +1)) {
2956 h = mdt_handler_find(lustre_msg_get_opc(msg),
2958 if (likely(h != NULL)) {
2959 rc = mdt_req_handle(info, h, req);
2961 CERROR("The unsupported opc: 0x%x\n",
2962 lustre_msg_get_opc(msg) );
2963 req->rq_status = -ENOTSUPP;
2964 rc = ptlrpc_error(req);
2969 CERROR(LUSTRE_MDT_NAME" drops mal-formed request\n");
2974 * MDT handler function called by ptlrpc service thread when request comes.
2976 * XXX common "target" functionality should be factored into separate module
2977 * shared by mdt, ost and stand-alone services like fld.
2979 static int mdt_handle_common(struct ptlrpc_request *req,
2980 struct mdt_opc_slice *supported)
2983 struct mdt_thread_info *info;
2987 env = req->rq_svc_thread->t_env;
2988 LASSERT(env != NULL);
2989 LASSERT(env->le_ses != NULL);
2990 LASSERT(env->le_ctx.lc_thread == req->rq_svc_thread);
2991 info = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
2992 LASSERT(info != NULL);
2994 mdt_thread_info_init(req, info);
2996 rc = mdt_handle0(req, info, supported);
2998 mdt_thread_info_fini(info);
3003 * This is called from recovery code as handler of _all_ RPC types, FLD and SEQ
3006 int mdt_recovery_handle(struct ptlrpc_request *req)
3011 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
3013 rc = mdt_handle_common(req, mdt_fld_handlers);
3016 rc = mdt_handle_common(req, mdt_seq_handlers);
3019 rc = mdt_handle_common(req, mdt_regular_handlers);
3026 static int mdt_regular_handle(struct ptlrpc_request *req)
3028 return mdt_handle_common(req, mdt_regular_handlers);
3031 static int mdt_readpage_handle(struct ptlrpc_request *req)
3033 return mdt_handle_common(req, mdt_readpage_handlers);
3036 static int mdt_xmds_handle(struct ptlrpc_request *req)
3038 return mdt_handle_common(req, mdt_xmds_handlers);
3041 static int mdt_mdsc_handle(struct ptlrpc_request *req)
3043 return mdt_handle_common(req, mdt_seq_handlers);
3046 static int mdt_mdss_handle(struct ptlrpc_request *req)
3048 return mdt_handle_common(req, mdt_seq_handlers);
3051 static int mdt_dtss_handle(struct ptlrpc_request *req)
3053 return mdt_handle_common(req, mdt_seq_handlers);
3056 static int mdt_fld_handle(struct ptlrpc_request *req)
3058 return mdt_handle_common(req, mdt_fld_handlers);
3074 static int mdt_intent_getattr(enum mdt_it_code opcode,
3075 struct mdt_thread_info *info,
3076 struct ldlm_lock **,
3078 static int mdt_intent_reint(enum mdt_it_code opcode,
3079 struct mdt_thread_info *info,
3080 struct ldlm_lock **,
3083 static struct mdt_it_flavor {
3084 const struct req_format *it_fmt;
3086 int (*it_act)(enum mdt_it_code ,
3087 struct mdt_thread_info *,
3088 struct ldlm_lock **,
3091 } mdt_it_flavor[] = {
3093 .it_fmt = &RQF_LDLM_INTENT,
3094 /*.it_flags = HABEO_REFERO,*/
3096 .it_act = mdt_intent_reint,
3097 .it_reint = REINT_OPEN
3100 .it_fmt = &RQF_LDLM_INTENT,
3101 .it_flags = MUTABOR,
3102 .it_act = mdt_intent_reint,
3103 .it_reint = REINT_OPEN
3106 .it_fmt = &RQF_LDLM_INTENT,
3107 .it_flags = MUTABOR,
3108 .it_act = mdt_intent_reint,
3109 .it_reint = REINT_CREATE
3111 [MDT_IT_GETATTR] = {
3112 .it_fmt = &RQF_LDLM_INTENT_GETATTR,
3113 .it_flags = HABEO_REFERO,
3114 .it_act = mdt_intent_getattr
3116 [MDT_IT_READDIR] = {
3122 .it_fmt = &RQF_LDLM_INTENT_GETATTR,
3123 .it_flags = HABEO_REFERO,
3124 .it_act = mdt_intent_getattr
3127 .it_fmt = &RQF_LDLM_INTENT_UNLINK,
3128 .it_flags = MUTABOR,
3130 .it_reint = REINT_UNLINK
3134 .it_flags = MUTABOR,
3137 [MDT_IT_GETXATTR] = {
3144 int mdt_intent_lock_replace(struct mdt_thread_info *info,
3145 struct ldlm_lock **lockp,
3146 struct ldlm_lock *new_lock,
3147 struct mdt_lock_handle *lh,
3150 struct ptlrpc_request *req = mdt_info_req(info);
3151 struct ldlm_lock *lock = *lockp;
3154 * Get new lock only for cases when possible resent did not find any
3157 if (new_lock == NULL)
3158 new_lock = ldlm_handle2lock_long(&lh->mlh_reg_lh, 0);
3160 if (new_lock == NULL && (flags & LDLM_FL_INTENT_ONLY)) {
3161 lh->mlh_reg_lh.cookie = 0;
3165 LASSERTF(new_lock != NULL,
3166 "lockh "LPX64"\n", lh->mlh_reg_lh.cookie);
3169 * If we've already given this lock to a client once, then we should
3170 * have no readers or writers. Otherwise, we should have one reader
3171 * _or_ writer ref (which will be zeroed below) before returning the
3174 if (new_lock->l_export == req->rq_export) {
3175 LASSERT(new_lock->l_readers + new_lock->l_writers == 0);
3177 LASSERT(new_lock->l_export == NULL);
3178 LASSERT(new_lock->l_readers + new_lock->l_writers == 1);
3183 if (new_lock->l_export == req->rq_export) {
3185 * Already gave this to the client, which means that we
3186 * reconstructed a reply.
3188 LASSERT(lustre_msg_get_flags(req->rq_reqmsg) &
3190 lh->mlh_reg_lh.cookie = 0;
3191 RETURN(ELDLM_LOCK_REPLACED);
3195 * Fixup the lock to be given to the client.
3197 lock_res_and_lock(new_lock);
3198 /* Zero new_lock->l_readers and new_lock->l_writers without triggering
3199 * possible blocking AST. */
3200 while (new_lock->l_readers > 0) {
3201 lu_ref_del(&new_lock->l_reference, "reader", new_lock);
3202 lu_ref_del(&new_lock->l_reference, "user", new_lock);
3203 new_lock->l_readers--;
3205 while (new_lock->l_writers > 0) {
3206 lu_ref_del(&new_lock->l_reference, "writer", new_lock);
3207 lu_ref_del(&new_lock->l_reference, "user", new_lock);
3208 new_lock->l_writers--;
3211 new_lock->l_export = class_export_lock_get(req->rq_export, new_lock);
3212 new_lock->l_blocking_ast = lock->l_blocking_ast;
3213 new_lock->l_completion_ast = lock->l_completion_ast;
3214 new_lock->l_remote_handle = lock->l_remote_handle;
3215 new_lock->l_flags &= ~LDLM_FL_LOCAL;
3217 unlock_res_and_lock(new_lock);
3219 cfs_hash_add(new_lock->l_export->exp_lock_hash,
3220 &new_lock->l_remote_handle,
3221 &new_lock->l_exp_hash);
3223 LDLM_LOCK_RELEASE(new_lock);
3224 lh->mlh_reg_lh.cookie = 0;
3226 RETURN(ELDLM_LOCK_REPLACED);
3229 static void mdt_intent_fixup_resent(struct mdt_thread_info *info,
3230 struct ldlm_lock *new_lock,
3231 struct ldlm_lock **old_lock,
3232 struct mdt_lock_handle *lh)
3234 struct ptlrpc_request *req = mdt_info_req(info);
3235 struct obd_export *exp = req->rq_export;
3236 struct lustre_handle remote_hdl;
3237 struct ldlm_request *dlmreq;
3238 struct ldlm_lock *lock;
3240 if (!(lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT))
3243 dlmreq = req_capsule_client_get(info->mti_pill, &RMF_DLM_REQ);
3244 remote_hdl = dlmreq->lock_handle[0];
3246 lock = cfs_hash_lookup(exp->exp_lock_hash, &remote_hdl);
3248 if (lock != new_lock) {
3249 lh->mlh_reg_lh.cookie = lock->l_handle.h_cookie;
3250 lh->mlh_reg_mode = lock->l_granted_mode;
3252 LDLM_DEBUG(lock, "Restoring lock cookie");
3253 DEBUG_REQ(D_DLMTRACE, req,
3254 "restoring lock cookie "LPX64,
3255 lh->mlh_reg_lh.cookie);
3257 *old_lock = LDLM_LOCK_GET(lock);
3258 cfs_hash_put(exp->exp_lock_hash, &lock->l_exp_hash);
3262 cfs_hash_put(exp->exp_lock_hash, &lock->l_exp_hash);
3266 * If the xid matches, then we know this is a resent request, and allow
3267 * it. (It's probably an OPEN, for which we don't send a lock.
3269 if (req_xid_is_last(req))
3273 * This remote handle isn't enqueued, so we never received or processed
3274 * this request. Clear MSG_RESENT, because it can be handled like any
3275 * normal request now.
3277 lustre_msg_clear_flags(req->rq_reqmsg, MSG_RESENT);
3279 DEBUG_REQ(D_DLMTRACE, req, "no existing lock with rhandle "LPX64,
3283 static int mdt_intent_getattr(enum mdt_it_code opcode,
3284 struct mdt_thread_info *info,
3285 struct ldlm_lock **lockp,
3288 struct mdt_lock_handle *lhc = &info->mti_lh[MDT_LH_RMT];
3289 struct ldlm_lock *new_lock = NULL;
3291 struct ldlm_reply *ldlm_rep;
3292 struct ptlrpc_request *req;
3293 struct mdt_body *reqbody;
3294 struct mdt_body *repbody;
3298 reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
3301 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
3304 info->mti_spec.sp_ck_split = !!(reqbody->valid & OBD_MD_FLCKSPLIT);
3305 info->mti_cross_ref = !!(reqbody->valid & OBD_MD_FLCROSSREF);
3306 repbody->eadatasize = 0;
3307 repbody->aclsize = 0;
3311 child_bits = MDS_INODELOCK_LOOKUP;
3313 case MDT_IT_GETATTR:
3314 child_bits = MDS_INODELOCK_LOOKUP | MDS_INODELOCK_UPDATE;
3317 CERROR("Unhandled till now");
3318 GOTO(out_shrink, rc = -EINVAL);
3321 rc = mdt_init_ucred(info, reqbody);
3323 GOTO(out_shrink, rc);
3325 req = info->mti_pill->rc_req;
3326 ldlm_rep = req_capsule_server_get(info->mti_pill, &RMF_DLM_REP);
3327 mdt_set_disposition(info, ldlm_rep, DISP_IT_EXECD);
3329 /* Get lock from request for possible resent case. */
3330 mdt_intent_fixup_resent(info, *lockp, &new_lock, lhc);
3332 ldlm_rep->lock_policy_res2 =
3333 mdt_getattr_name_lock(info, lhc, child_bits, ldlm_rep);
3335 if (mdt_get_disposition(ldlm_rep, DISP_LOOKUP_NEG))
3336 ldlm_rep->lock_policy_res2 = 0;
3337 if (!mdt_get_disposition(ldlm_rep, DISP_LOOKUP_POS) ||
3338 ldlm_rep->lock_policy_res2) {
3339 lhc->mlh_reg_lh.cookie = 0ull;
3340 GOTO(out_ucred, rc = ELDLM_LOCK_ABORTED);
3343 rc = mdt_intent_lock_replace(info, lockp, new_lock, lhc, flags);
3346 mdt_exit_ucred(info);
3348 mdt_shrink_reply(info);
3352 static int mdt_intent_reint(enum mdt_it_code opcode,
3353 struct mdt_thread_info *info,
3354 struct ldlm_lock **lockp,
3357 struct mdt_lock_handle *lhc = &info->mti_lh[MDT_LH_RMT];
3358 struct ldlm_reply *rep = NULL;
3362 static const struct req_format *intent_fmts[REINT_MAX] = {
3363 [REINT_CREATE] = &RQF_LDLM_INTENT_CREATE,
3364 [REINT_OPEN] = &RQF_LDLM_INTENT_OPEN
3369 opc = mdt_reint_opcode(info, intent_fmts);
3373 if (mdt_it_flavor[opcode].it_reint != opc) {
3374 CERROR("Reint code %ld doesn't match intent: %d\n",
3376 RETURN(err_serious(-EPROTO));
3379 /* Get lock from request for possible resent case. */
3380 mdt_intent_fixup_resent(info, *lockp, NULL, lhc);
3382 rc = mdt_reint_internal(info, lhc, opc);
3384 /* Check whether the reply has been packed successfully. */
3385 if (mdt_info_req(info)->rq_repmsg != NULL)
3386 rep = req_capsule_server_get(info->mti_pill, &RMF_DLM_REP);
3388 RETURN(err_serious(-EFAULT));
3390 /* MDC expects this in any case */
3392 mdt_set_disposition(info, rep, DISP_LOOKUP_EXECD);
3394 /* Cross-ref case, the lock should be returned to the client */
3395 if (rc == -EREMOTE) {
3396 LASSERT(lustre_handle_is_used(&lhc->mlh_reg_lh));
3397 rep->lock_policy_res2 = 0;
3398 rc = mdt_intent_lock_replace(info, lockp, NULL, lhc, flags);
3401 rep->lock_policy_res2 = clear_serious(rc);
3403 if (rc == -ENOTCONN || rc == -ENODEV ||
3404 rc == -EOVERFLOW) { /**< if VBR failure then return error */
3406 * If it is the disconnect error (ENODEV & ENOCONN), the error
3407 * will be returned by rq_status, and client at ptlrpc layer
3408 * will detect this, then disconnect, reconnect the import
3409 * immediately, instead of impacting the following the rpc.
3411 lhc->mlh_reg_lh.cookie = 0ull;
3415 * For other cases, the error will be returned by intent.
3416 * and client will retrieve the result from intent.
3419 * FIXME: when open lock is finished, that should be
3422 if (lustre_handle_is_used(&lhc->mlh_reg_lh)) {
3423 LASSERTF(rc == 0, "Error occurred but lock handle "
3424 "is still in use\n");
3425 rep->lock_policy_res2 = 0;
3426 rc = mdt_intent_lock_replace(info, lockp, NULL, lhc, flags);
3429 lhc->mlh_reg_lh.cookie = 0ull;
3430 RETURN(ELDLM_LOCK_ABORTED);
3435 static int mdt_intent_code(long itcode)
3443 case IT_OPEN|IT_CREAT:
3450 rc = MDT_IT_READDIR;
3453 rc = MDT_IT_GETATTR;
3465 rc = MDT_IT_GETXATTR;
3468 CERROR("Unknown intent opcode: %ld\n", itcode);
3475 static int mdt_intent_opc(long itopc, struct mdt_thread_info *info,
3476 struct ldlm_lock **lockp, int flags)
3478 struct req_capsule *pill;
3479 struct mdt_it_flavor *flv;
3484 opc = mdt_intent_code(itopc);
3488 pill = info->mti_pill;
3489 flv = &mdt_it_flavor[opc];
3491 if (flv->it_fmt != NULL)
3492 req_capsule_extend(pill, flv->it_fmt);
3494 rc = mdt_unpack_req_pack_rep(info, flv->it_flags);
3496 struct ptlrpc_request *req = mdt_info_req(info);
3497 if (flv->it_flags & MUTABOR &&
3498 req->rq_export->exp_connect_flags & OBD_CONNECT_RDONLY)
3501 if (rc == 0 && flv->it_act != NULL) {
3502 /* execute policy */
3503 rc = flv->it_act(opc, info, lockp, flags);
3510 static int mdt_intent_policy(struct ldlm_namespace *ns,
3511 struct ldlm_lock **lockp, void *req_cookie,
3512 ldlm_mode_t mode, int flags, void *data)
3514 struct mdt_thread_info *info;
3515 struct ptlrpc_request *req = req_cookie;
3516 struct ldlm_intent *it;
3517 struct req_capsule *pill;
3522 LASSERT(req != NULL);
3524 info = lu_context_key_get(&req->rq_svc_thread->t_env->le_ctx,
3526 LASSERT(info != NULL);
3527 pill = info->mti_pill;
3528 LASSERT(pill->rc_req == req);
3530 if (req->rq_reqmsg->lm_bufcount > DLM_INTENT_IT_OFF) {
3531 req_capsule_extend(pill, &RQF_LDLM_INTENT);
3532 it = req_capsule_client_get(pill, &RMF_LDLM_INTENT);
3534 rc = mdt_intent_opc(it->opc, info, lockp, flags);
3538 /* Lock without inodebits makes no sense and will oops
3539 * later in ldlm. Let's check it now to see if we have
3540 * ibits corrupted somewhere in mdt_intent_opc().
3541 * The case for client miss to set ibits has been
3542 * processed by others. */
3543 LASSERT(ergo(info->mti_dlm_req->lock_desc.l_resource.\
3544 lr_type == LDLM_IBITS,
3545 info->mti_dlm_req->lock_desc.\
3546 l_policy_data.l_inodebits.bits != 0));
3548 rc = err_serious(-EFAULT);
3550 /* No intent was provided */
3551 LASSERT(pill->rc_fmt == &RQF_LDLM_ENQUEUE);
3552 rc = req_capsule_server_pack(pill);
3554 rc = err_serious(rc);
3559 static int mdt_seq_fini(const struct lu_env *env,
3560 struct mdt_device *m)
3562 struct md_site *ms = mdt_md_site(m);
3566 if (ms->ms_server_seq) {
3567 seq_server_fini(ms->ms_server_seq, env);
3568 OBD_FREE_PTR(ms->ms_server_seq);
3569 ms->ms_server_seq = NULL;
3572 if (ms->ms_control_seq) {
3573 seq_server_fini(ms->ms_control_seq, env);
3574 OBD_FREE_PTR(ms->ms_control_seq);
3575 ms->ms_control_seq = NULL;
3578 if (ms->ms_client_seq) {
3579 seq_client_fini(ms->ms_client_seq);
3580 OBD_FREE_PTR(ms->ms_client_seq);
3581 ms->ms_client_seq = NULL;
3588 static int mdt_seq_init(const struct lu_env *env,
3590 struct mdt_device *m)
3597 ms = mdt_md_site(m);
3600 * This is sequence-controller node. Init seq-controller server on local
3603 if (ms->ms_node_id == 0) {
3604 LASSERT(ms->ms_control_seq == NULL);
3606 OBD_ALLOC_PTR(ms->ms_control_seq);
3607 if (ms->ms_control_seq == NULL)
3610 rc = seq_server_init(ms->ms_control_seq,
3611 m->mdt_bottom, uuid,
3612 LUSTRE_SEQ_CONTROLLER,
3617 GOTO(out_seq_fini, rc);
3619 OBD_ALLOC_PTR(ms->ms_client_seq);
3620 if (ms->ms_client_seq == NULL)
3621 GOTO(out_seq_fini, rc = -ENOMEM);
3623 OBD_ALLOC(prefix, MAX_OBD_NAME + 5);
3624 if (prefix == NULL) {
3625 OBD_FREE_PTR(ms->ms_client_seq);
3626 GOTO(out_seq_fini, rc = -ENOMEM);
3629 snprintf(prefix, MAX_OBD_NAME + 5, "ctl-%s",
3633 * Init seq-controller client after seq-controller server is
3634 * ready. Pass ms->ms_control_seq to it for direct talking.
3636 rc = seq_client_init(ms->ms_client_seq, NULL,
3637 LUSTRE_SEQ_METADATA, prefix,
3638 ms->ms_control_seq);
3639 OBD_FREE(prefix, MAX_OBD_NAME + 5);
3642 GOTO(out_seq_fini, rc);
3645 /* Init seq-server on local MDT */
3646 LASSERT(ms->ms_server_seq == NULL);
3648 OBD_ALLOC_PTR(ms->ms_server_seq);
3649 if (ms->ms_server_seq == NULL)
3650 GOTO(out_seq_fini, rc = -ENOMEM);
3652 rc = seq_server_init(ms->ms_server_seq,
3653 m->mdt_bottom, uuid,
3658 GOTO(out_seq_fini, rc = -ENOMEM);
3660 /* Assign seq-controller client to local seq-server. */
3661 if (ms->ms_node_id == 0) {
3662 LASSERT(ms->ms_client_seq != NULL);
3664 rc = seq_server_set_cli(ms->ms_server_seq,
3672 mdt_seq_fini(env, m);
3677 * Init client sequence manager which is used by local MDS to talk to sequence
3678 * controller on remote node.
3680 static int mdt_seq_init_cli(const struct lu_env *env,
3681 struct mdt_device *m,
3682 struct lustre_cfg *cfg)
3684 struct md_site *ms = mdt_md_site(m);
3685 struct obd_device *mdc;
3686 struct obd_uuid *uuidp, *mdcuuidp;
3687 char *uuid_str, *mdc_uuid_str;
3690 struct mdt_thread_info *info;
3691 char *p, *index_string = lustre_cfg_string(cfg, 2);
3694 info = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
3695 uuidp = &info->mti_u.uuid[0];
3696 mdcuuidp = &info->mti_u.uuid[1];
3698 LASSERT(index_string);
3700 index = simple_strtol(index_string, &p, 10);
3702 CERROR("Invalid index in lustre_cgf, offset 2\n");
3706 /* check if this is adding the first MDC and controller is not yet
3708 if (index != 0 || ms->ms_client_seq)
3711 uuid_str = lustre_cfg_string(cfg, 1);
3712 mdc_uuid_str = lustre_cfg_string(cfg, 4);
3713 obd_str2uuid(uuidp, uuid_str);
3714 obd_str2uuid(mdcuuidp, mdc_uuid_str);
3716 mdc = class_find_client_obd(uuidp, LUSTRE_MDC_NAME, mdcuuidp);
3718 CERROR("can't find controller MDC by uuid %s\n",
3721 } else if (!mdc->obd_set_up) {
3722 CERROR("target %s not set up\n", mdc->obd_name);
3725 LASSERT(ms->ms_control_exp);
3726 OBD_ALLOC_PTR(ms->ms_client_seq);
3727 if (ms->ms_client_seq != NULL) {
3730 OBD_ALLOC(prefix, MAX_OBD_NAME + 5);
3734 snprintf(prefix, MAX_OBD_NAME + 5, "ctl-%s",
3737 rc = seq_client_init(ms->ms_client_seq,
3739 LUSTRE_SEQ_METADATA,
3741 OBD_FREE(prefix, MAX_OBD_NAME + 5);
3748 LASSERT(ms->ms_server_seq != NULL);
3749 rc = seq_server_set_cli(ms->ms_server_seq, ms->ms_client_seq,
3756 static void mdt_seq_fini_cli(struct mdt_device *m)
3762 ms = mdt_md_site(m);
3765 if (ms->ms_server_seq)
3766 seq_server_set_cli(ms->ms_server_seq,
3769 if (ms->ms_control_exp) {
3770 class_export_put(ms->ms_control_exp);
3771 ms->ms_control_exp = NULL;
3780 static int mdt_fld_fini(const struct lu_env *env,
3781 struct mdt_device *m)
3783 struct md_site *ms = mdt_md_site(m);
3786 if (ms && ms->ms_server_fld) {
3787 fld_server_fini(ms->ms_server_fld, env);
3788 OBD_FREE_PTR(ms->ms_server_fld);
3789 ms->ms_server_fld = NULL;
3795 static int mdt_fld_init(const struct lu_env *env,
3797 struct mdt_device *m)
3803 ms = mdt_md_site(m);
3805 OBD_ALLOC_PTR(ms->ms_server_fld);
3806 if (ms->ms_server_fld == NULL)
3807 RETURN(rc = -ENOMEM);
3809 rc = fld_server_init(ms->ms_server_fld,
3810 m->mdt_bottom, uuid,
3811 env, ms->ms_node_id);
3813 OBD_FREE_PTR(ms->ms_server_fld);
3814 ms->ms_server_fld = NULL;
3821 /* device init/fini methods */
3822 static void mdt_stop_ptlrpc_service(struct mdt_device *m)
3825 if (m->mdt_regular_service != NULL) {
3826 ptlrpc_unregister_service(m->mdt_regular_service);
3827 m->mdt_regular_service = NULL;
3829 if (m->mdt_readpage_service != NULL) {
3830 ptlrpc_unregister_service(m->mdt_readpage_service);
3831 m->mdt_readpage_service = NULL;
3833 if (m->mdt_xmds_service != NULL) {
3834 ptlrpc_unregister_service(m->mdt_xmds_service);
3835 m->mdt_xmds_service = NULL;
3837 if (m->mdt_setattr_service != NULL) {
3838 ptlrpc_unregister_service(m->mdt_setattr_service);
3839 m->mdt_setattr_service = NULL;
3841 if (m->mdt_mdsc_service != NULL) {
3842 ptlrpc_unregister_service(m->mdt_mdsc_service);
3843 m->mdt_mdsc_service = NULL;
3845 if (m->mdt_mdss_service != NULL) {
3846 ptlrpc_unregister_service(m->mdt_mdss_service);
3847 m->mdt_mdss_service = NULL;
3849 if (m->mdt_dtss_service != NULL) {
3850 ptlrpc_unregister_service(m->mdt_dtss_service);
3851 m->mdt_dtss_service = NULL;
3853 if (m->mdt_fld_service != NULL) {
3854 ptlrpc_unregister_service(m->mdt_fld_service);
3855 m->mdt_fld_service = NULL;
3860 static int mdt_start_ptlrpc_service(struct mdt_device *m)
3863 static struct ptlrpc_service_conf conf;
3864 cfs_proc_dir_entry_t *procfs_entry;
3867 procfs_entry = m->mdt_md_dev.md_lu_dev.ld_obd->obd_proc_entry;
3869 conf = (typeof(conf)) {
3870 .psc_nbufs = MDS_NBUFS,
3871 .psc_bufsize = MDS_BUFSIZE,
3872 .psc_max_req_size = MDS_MAXREQSIZE,
3873 .psc_max_reply_size = MDS_MAXREPSIZE,
3874 .psc_req_portal = MDS_REQUEST_PORTAL,
3875 .psc_rep_portal = MDC_REPLY_PORTAL,
3876 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
3878 * We'd like to have a mechanism to set this on a per-device
3879 * basis, but alas...
3881 .psc_min_threads = mdt_min_threads,
3882 .psc_max_threads = mdt_max_threads,
3883 .psc_ctx_tags = LCT_MD_THREAD
3886 m->mdt_ldlm_client = &m->mdt_md_dev.md_lu_dev.ld_obd->obd_ldlm_client;
3887 ptlrpc_init_client(LDLM_CB_REQUEST_PORTAL, LDLM_CB_REPLY_PORTAL,
3888 "mdt_ldlm_client", m->mdt_ldlm_client);
3890 m->mdt_regular_service =
3891 ptlrpc_init_svc_conf(&conf, mdt_regular_handle, LUSTRE_MDT_NAME,
3892 procfs_entry, target_print_req,
3894 if (m->mdt_regular_service == NULL)
3897 rc = ptlrpc_start_threads(m->mdt_regular_service);
3899 GOTO(err_mdt_svc, rc);
3902 * readpage service configuration. Parameters have to be adjusted,
3905 conf = (typeof(conf)) {
3906 .psc_nbufs = MDS_NBUFS,
3907 .psc_bufsize = MDS_BUFSIZE,
3908 .psc_max_req_size = MDS_MAXREQSIZE,
3909 .psc_max_reply_size = MDS_MAXREPSIZE,
3910 .psc_req_portal = MDS_READPAGE_PORTAL,
3911 .psc_rep_portal = MDC_REPLY_PORTAL,
3912 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
3913 .psc_min_threads = mdt_min_threads,
3914 .psc_max_threads = mdt_max_threads,
3915 .psc_ctx_tags = LCT_MD_THREAD
3917 m->mdt_readpage_service =
3918 ptlrpc_init_svc_conf(&conf, mdt_readpage_handle,
3919 LUSTRE_MDT_NAME "_readpage",
3920 procfs_entry, target_print_req,"mdt_rdpg");
3922 if (m->mdt_readpage_service == NULL) {
3923 CERROR("failed to start readpage service\n");
3924 GOTO(err_mdt_svc, rc = -ENOMEM);
3927 rc = ptlrpc_start_threads(m->mdt_readpage_service);
3930 * setattr service configuration.
3932 conf = (typeof(conf)) {
3933 .psc_nbufs = MDS_NBUFS,
3934 .psc_bufsize = MDS_BUFSIZE,
3935 .psc_max_req_size = MDS_MAXREQSIZE,
3936 .psc_max_reply_size = MDS_MAXREPSIZE,
3937 .psc_req_portal = MDS_SETATTR_PORTAL,
3938 .psc_rep_portal = MDC_REPLY_PORTAL,
3939 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
3940 .psc_min_threads = mdt_min_threads,
3941 .psc_max_threads = mdt_max_threads,
3942 .psc_ctx_tags = LCT_MD_THREAD
3945 m->mdt_setattr_service =
3946 ptlrpc_init_svc_conf(&conf, mdt_regular_handle,
3947 LUSTRE_MDT_NAME "_setattr",
3948 procfs_entry, target_print_req,"mdt_attr");
3950 if (!m->mdt_setattr_service) {
3951 CERROR("failed to start setattr service\n");
3952 GOTO(err_mdt_svc, rc = -ENOMEM);
3955 rc = ptlrpc_start_threads(m->mdt_setattr_service);
3957 GOTO(err_mdt_svc, rc);
3960 * sequence controller service configuration
3962 conf = (typeof(conf)) {
3963 .psc_nbufs = MDS_NBUFS,
3964 .psc_bufsize = MDS_BUFSIZE,
3965 .psc_max_req_size = SEQ_MAXREQSIZE,
3966 .psc_max_reply_size = SEQ_MAXREPSIZE,
3967 .psc_req_portal = SEQ_CONTROLLER_PORTAL,
3968 .psc_rep_portal = MDC_REPLY_PORTAL,
3969 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
3970 .psc_min_threads = mdt_min_threads,
3971 .psc_max_threads = mdt_max_threads,
3972 .psc_ctx_tags = LCT_MD_THREAD|LCT_DT_THREAD
3975 m->mdt_mdsc_service =
3976 ptlrpc_init_svc_conf(&conf, mdt_mdsc_handle,
3977 LUSTRE_MDT_NAME"_mdsc",
3978 procfs_entry, target_print_req,"mdt_mdsc");
3979 if (!m->mdt_mdsc_service) {
3980 CERROR("failed to start seq controller service\n");
3981 GOTO(err_mdt_svc, rc = -ENOMEM);
3984 rc = ptlrpc_start_threads(m->mdt_mdsc_service);
3986 GOTO(err_mdt_svc, rc);
3989 * metadata sequence server service configuration
3991 conf = (typeof(conf)) {
3992 .psc_nbufs = MDS_NBUFS,
3993 .psc_bufsize = MDS_BUFSIZE,
3994 .psc_max_req_size = SEQ_MAXREQSIZE,
3995 .psc_max_reply_size = SEQ_MAXREPSIZE,
3996 .psc_req_portal = SEQ_METADATA_PORTAL,
3997 .psc_rep_portal = MDC_REPLY_PORTAL,
3998 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
3999 .psc_min_threads = mdt_min_threads,
4000 .psc_max_threads = mdt_max_threads,
4001 .psc_ctx_tags = LCT_MD_THREAD|LCT_DT_THREAD
4004 m->mdt_mdss_service =
4005 ptlrpc_init_svc_conf(&conf, mdt_mdss_handle,
4006 LUSTRE_MDT_NAME"_mdss",
4007 procfs_entry, target_print_req,"mdt_mdss");
4008 if (!m->mdt_mdss_service) {
4009 CERROR("failed to start metadata seq server service\n");
4010 GOTO(err_mdt_svc, rc = -ENOMEM);
4013 rc = ptlrpc_start_threads(m->mdt_mdss_service);
4015 GOTO(err_mdt_svc, rc);
4019 * Data sequence server service configuration. We want to have really
4020 * cluster-wide sequences space. This is why we start only one sequence
4021 * controller which manages space.
4023 conf = (typeof(conf)) {
4024 .psc_nbufs = MDS_NBUFS,
4025 .psc_bufsize = MDS_BUFSIZE,
4026 .psc_max_req_size = SEQ_MAXREQSIZE,
4027 .psc_max_reply_size = SEQ_MAXREPSIZE,
4028 .psc_req_portal = SEQ_DATA_PORTAL,
4029 .psc_rep_portal = OSC_REPLY_PORTAL,
4030 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
4031 .psc_min_threads = mdt_min_threads,
4032 .psc_max_threads = mdt_max_threads,
4033 .psc_ctx_tags = LCT_MD_THREAD|LCT_DT_THREAD
4036 m->mdt_dtss_service =
4037 ptlrpc_init_svc_conf(&conf, mdt_dtss_handle,
4038 LUSTRE_MDT_NAME"_dtss",
4039 procfs_entry, target_print_req,"mdt_dtss");
4040 if (!m->mdt_dtss_service) {
4041 CERROR("failed to start data seq server service\n");
4042 GOTO(err_mdt_svc, rc = -ENOMEM);
4045 rc = ptlrpc_start_threads(m->mdt_dtss_service);
4047 GOTO(err_mdt_svc, rc);
4049 /* FLD service start */
4050 conf = (typeof(conf)) {
4051 .psc_nbufs = MDS_NBUFS,
4052 .psc_bufsize = MDS_BUFSIZE,
4053 .psc_max_req_size = FLD_MAXREQSIZE,
4054 .psc_max_reply_size = FLD_MAXREPSIZE,
4055 .psc_req_portal = FLD_REQUEST_PORTAL,
4056 .psc_rep_portal = MDC_REPLY_PORTAL,
4057 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
4058 .psc_min_threads = mdt_min_threads,
4059 .psc_max_threads = mdt_max_threads,
4060 .psc_ctx_tags = LCT_DT_THREAD|LCT_MD_THREAD
4063 m->mdt_fld_service =
4064 ptlrpc_init_svc_conf(&conf, mdt_fld_handle,
4065 LUSTRE_MDT_NAME"_fld",
4066 procfs_entry, target_print_req, "mdt_fld");
4067 if (!m->mdt_fld_service) {
4068 CERROR("failed to start fld service\n");
4069 GOTO(err_mdt_svc, rc = -ENOMEM);
4072 rc = ptlrpc_start_threads(m->mdt_fld_service);
4074 GOTO(err_mdt_svc, rc);
4077 * mds-mds service configuration. Separate portal is used to allow
4078 * mds-mds requests be not blocked during recovery.
4080 conf = (typeof(conf)) {
4081 .psc_nbufs = MDS_NBUFS,
4082 .psc_bufsize = MDS_BUFSIZE,
4083 .psc_max_req_size = MDS_MAXREQSIZE,
4084 .psc_max_reply_size = MDS_MAXREPSIZE,
4085 .psc_req_portal = MDS_MDS_PORTAL,
4086 .psc_rep_portal = MDC_REPLY_PORTAL,
4087 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
4088 .psc_min_threads = mdt_min_threads,
4089 .psc_max_threads = mdt_max_threads,
4090 .psc_ctx_tags = LCT_MD_THREAD
4092 m->mdt_xmds_service =
4093 ptlrpc_init_svc_conf(&conf, mdt_xmds_handle,
4094 LUSTRE_MDT_NAME "_mds",
4095 procfs_entry, target_print_req,"mdt_xmds");
4097 if (m->mdt_xmds_service == NULL) {
4098 CERROR("failed to start xmds service\n");
4099 GOTO(err_mdt_svc, rc = -ENOMEM);
4102 rc = ptlrpc_start_threads(m->mdt_xmds_service);
4104 GOTO(err_mdt_svc, rc);
4109 mdt_stop_ptlrpc_service(m);
4114 static void mdt_stack_fini(const struct lu_env *env,
4115 struct mdt_device *m, struct lu_device *top)
4117 struct obd_device *obd = mdt2obd_dev(m);
4118 struct lustre_cfg_bufs *bufs;
4119 struct lustre_cfg *lcfg;
4120 struct mdt_thread_info *info;
4124 info = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
4125 LASSERT(info != NULL);
4127 bufs = &info->mti_u.bufs;
4128 /* process cleanup, pass mdt obd name to get obd umount flags */
4129 lustre_cfg_bufs_reset(bufs, obd->obd_name);
4134 lustre_cfg_bufs_set_string(bufs, 1, flags);
4135 lcfg = lustre_cfg_new(LCFG_CLEANUP, bufs);
4137 CERROR("Cannot alloc lcfg!\n");
4142 top->ld_ops->ldo_process_config(env, top, lcfg);
4143 lustre_cfg_free(lcfg);
4145 lu_stack_fini(env, top);
4146 m->mdt_child = NULL;
4147 m->mdt_bottom = NULL;
4150 static struct lu_device *mdt_layer_setup(struct lu_env *env,
4151 const char *typename,
4152 struct lu_device *child,
4153 struct lustre_cfg *cfg)
4155 const char *dev = lustre_cfg_string(cfg, 0);
4156 struct obd_type *type;
4157 struct lu_device_type *ldt;
4158 struct lu_device *d;
4163 type = class_get_type(typename);
4165 CERROR("Unknown type: '%s'\n", typename);
4166 GOTO(out, rc = -ENODEV);
4169 rc = lu_env_refill((struct lu_env *)env);
4171 CERROR("Failure to refill session: '%d'\n", rc);
4177 CERROR("type: '%s'\n", typename);
4178 GOTO(out_type, rc = -EINVAL);
4181 ldt->ldt_obd_type = type;
4182 d = ldt->ldt_ops->ldto_device_alloc(env, ldt, cfg);
4184 CERROR("Cannot allocate device: '%s'\n", typename);
4185 GOTO(out_type, rc = -ENODEV);
4188 LASSERT(child->ld_site);
4189 d->ld_site = child->ld_site;
4192 rc = ldt->ldt_ops->ldto_device_init(env, d, dev, child);
4194 CERROR("can't init device '%s', rc %d\n", typename, rc);
4195 GOTO(out_alloc, rc);
4198 lu_ref_add(&d->ld_reference, "lu-stack", &lu_site_init);
4203 ldt->ldt_ops->ldto_device_free(env, d);
4206 class_put_type(type);
4211 static int mdt_stack_init(struct lu_env *env,
4212 struct mdt_device *m,
4213 struct lustre_cfg *cfg,
4214 struct lustre_mount_info *lmi)
4216 struct lu_device *d = &m->mdt_md_dev.md_lu_dev;
4217 struct lu_device *tmp;
4218 struct md_device *md;
4219 struct lu_device *child_lu_dev;
4223 /* init the stack */
4224 tmp = mdt_layer_setup(env, LUSTRE_OSD_NAME, d, cfg);
4226 RETURN(PTR_ERR(tmp));
4228 m->mdt_bottom = lu2dt_dev(tmp);
4230 tmp = mdt_layer_setup(env, LUSTRE_MDD_NAME, d, cfg);
4232 GOTO(out, rc = PTR_ERR(tmp));
4237 tmp = mdt_layer_setup(env, LUSTRE_CMM_NAME, d, cfg);
4239 GOTO(out, rc = PTR_ERR(tmp));
4242 /*set mdd upcall device*/
4243 md_upcall_dev_set(md, lu2md_dev(d));
4246 /*set cmm upcall device*/
4247 md_upcall_dev_set(md, &m->mdt_md_dev);
4249 m->mdt_child = lu2md_dev(d);
4251 /* process setup config */
4252 tmp = &m->mdt_md_dev.md_lu_dev;
4253 rc = tmp->ld_ops->ldo_process_config(env, tmp, cfg);
4257 /* initialize local objects */
4258 child_lu_dev = &m->mdt_child->md_lu_dev;
4260 rc = child_lu_dev->ld_ops->ldo_prepare(env,
4261 &m->mdt_md_dev.md_lu_dev,
4264 /* fini from last known good lu_device */
4266 mdt_stack_fini(env, m, d);
4272 * setup CONFIG_ORIG context, used to access local config log.
4273 * this may need to be rewrite as part of llog rewrite for lu-api.
4275 static int mdt_obd_llog_setup(struct obd_device *obd,
4276 struct lustre_sb_info *lsi)
4280 LASSERT(obd->obd_fsops == NULL);
4282 obd->obd_fsops = fsfilt_get_ops(MT_STR(lsi->lsi_ldd));
4283 if (IS_ERR(obd->obd_fsops))
4284 return PTR_ERR(obd->obd_fsops);
4286 rc = fsfilt_setup(obd, lsi->lsi_srv_mnt->mnt_sb);
4288 fsfilt_put_ops(obd->obd_fsops);
4292 OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
4293 obd->obd_lvfs_ctxt.pwdmnt = lsi->lsi_srv_mnt;
4294 obd->obd_lvfs_ctxt.pwd = lsi->lsi_srv_mnt->mnt_root;
4295 obd->obd_lvfs_ctxt.fs = get_ds();
4297 rc = llog_setup(obd, &obd->obd_olg, LLOG_CONFIG_ORIG_CTXT, obd,
4298 0, NULL, &llog_lvfs_ops);
4300 CERROR("llog_setup() failed: %d\n", rc);
4301 fsfilt_put_ops(obd->obd_fsops);
4307 static void mdt_obd_llog_cleanup(struct obd_device *obd)
4309 struct llog_ctxt *ctxt;
4311 ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
4315 if (obd->obd_fsops) {
4316 fsfilt_put_ops(obd->obd_fsops);
4317 obd->obd_fsops = NULL;
4321 static void mdt_fini(const struct lu_env *env, struct mdt_device *m)
4323 struct md_device *next = m->mdt_child;
4324 struct lu_device *d = &m->mdt_md_dev.md_lu_dev;
4325 struct lu_site *ls = d->ld_site;
4326 struct obd_device *obd = mdt2obd_dev(m);
4329 target_recovery_fini(obd);
4331 ping_evictor_stop();
4333 mdt_stop_ptlrpc_service(m);
4334 mdt_llog_ctxt_unclone(env, m, LLOG_CHANGELOG_ORIG_CTXT);
4335 mdt_obd_llog_cleanup(obd);
4336 obd_exports_barrier(obd);
4337 obd_zombie_barrier();
4338 #ifdef HAVE_QUOTA_SUPPORT
4339 next->md_ops->mdo_quota.mqo_cleanup(env, next);
4341 lut_fini(env, &m->mdt_lut);
4342 mdt_fs_cleanup(env, m);
4343 upcall_cache_cleanup(m->mdt_identity_cache);
4344 m->mdt_identity_cache = NULL;
4346 if (m->mdt_namespace != NULL) {
4347 ldlm_namespace_free(m->mdt_namespace, NULL,
4348 d->ld_obd->obd_force);
4349 d->ld_obd->obd_namespace = m->mdt_namespace = NULL;
4352 cfs_free_nidlist(&m->mdt_nosquash_nids);
4353 if (m->mdt_nosquash_str) {
4354 OBD_FREE(m->mdt_nosquash_str, m->mdt_nosquash_strlen);
4355 m->mdt_nosquash_str = NULL;
4356 m->mdt_nosquash_strlen = 0;
4359 mdt_seq_fini(env, m);
4360 mdt_seq_fini_cli(m);
4361 mdt_fld_fini(env, m);
4362 sptlrpc_rule_set_free(&m->mdt_sptlrpc_rset);
4364 next->md_ops->mdo_init_capa_ctxt(env, next, 0, 0, 0, NULL);
4365 cfs_timer_disarm(&m->mdt_ck_timer);
4366 mdt_ck_thread_stop(m);
4371 mdt_stack_fini(env, m, md2lu_dev(m->mdt_child));
4373 lprocfs_free_per_client_stats(obd);
4374 lprocfs_free_obd_stats(obd);
4378 struct md_site *mite;
4381 mite = lu_site2md(ls);
4385 LASSERT(cfs_atomic_read(&d->ld_ref) == 0);
4390 static int mdt_adapt_sptlrpc_conf(struct obd_device *obd, int initial)
4392 struct mdt_device *m = mdt_dev(obd->obd_lu_dev);
4393 struct sptlrpc_rule_set tmp_rset;
4396 sptlrpc_rule_set_init(&tmp_rset);
4397 rc = sptlrpc_conf_target_get_rules(obd, &tmp_rset, initial);
4399 CERROR("mdt %s: failed get sptlrpc rules: %d\n",
4404 sptlrpc_target_update_exp_flavor(obd, &tmp_rset);
4406 cfs_write_lock(&m->mdt_sptlrpc_lock);
4407 sptlrpc_rule_set_free(&m->mdt_sptlrpc_rset);
4408 m->mdt_sptlrpc_rset = tmp_rset;
4409 cfs_write_unlock(&m->mdt_sptlrpc_lock);
4414 static void fsoptions_to_mdt_flags(struct mdt_device *m, char *options)
4418 m->mdt_opts.mo_mds_capa = 1;
4419 m->mdt_opts.mo_oss_capa = 1;
4420 #ifdef CONFIG_FS_POSIX_ACL
4421 /* ACLs should be enabled by default (b=13829) */
4422 m->mdt_opts.mo_acl = 1;
4423 LCONSOLE_INFO("Enabling ACL\n");
4425 m->mdt_opts.mo_acl = 0;
4426 LCONSOLE_INFO("Disabling ACL\n");
4435 while (*p && *p != ',')
4439 if ((len == sizeof("user_xattr") - 1) &&
4440 (memcmp(options, "user_xattr", len) == 0)) {
4441 m->mdt_opts.mo_user_xattr = 1;
4442 LCONSOLE_INFO("Enabling user_xattr\n");
4443 } else if ((len == sizeof("nouser_xattr") - 1) &&
4444 (memcmp(options, "nouser_xattr", len) == 0)) {
4445 m->mdt_opts.mo_user_xattr = 0;
4446 LCONSOLE_INFO("Disabling user_xattr\n");
4447 } else if ((len == sizeof("noacl") - 1) &&
4448 (memcmp(options, "noacl", len) == 0)) {
4449 m->mdt_opts.mo_acl = 0;
4450 LCONSOLE_INFO("Disabling ACL\n");
4460 int mdt_postrecov(const struct lu_env *, struct mdt_device *);
4462 static int mdt_init0(const struct lu_env *env, struct mdt_device *m,
4463 struct lu_device_type *ldt, struct lustre_cfg *cfg)
4465 struct mdt_thread_info *info;
4466 struct obd_device *obd;
4467 const char *dev = lustre_cfg_string(cfg, 0);
4468 const char *num = lustre_cfg_string(cfg, 2);
4469 struct lustre_mount_info *lmi = NULL;
4470 struct lustre_sb_info *lsi;
4471 struct lustre_disk_data *ldd;
4473 struct md_site *mite;
4474 const char *identity_upcall = "NONE";
4475 #ifdef HAVE_QUOTA_SUPPORT
4476 struct md_device *next;
4482 md_device_init(&m->mdt_md_dev, ldt);
4484 * Environment (env) might be missing mdt_thread_key values at that
4485 * point, if device is allocated when mdt_thread_key is in QUIESCENT
4488 * Usually device allocation path doesn't use module key values, but
4489 * mdt has to do a lot of work here, so allocate key value.
4491 rc = lu_env_refill((struct lu_env *)env);
4495 info = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
4496 LASSERT(info != NULL);
4498 obd = class_name2obd(dev);
4499 LASSERT(obd != NULL);
4501 m->mdt_max_mdsize = MAX_MD_SIZE;
4502 m->mdt_max_cookiesize = sizeof(struct llog_cookie);
4503 m->mdt_som_conf = 0;
4505 m->mdt_opts.mo_user_xattr = 0;
4506 m->mdt_opts.mo_acl = 0;
4507 m->mdt_opts.mo_cos = MDT_COS_DEFAULT;
4508 lmi = server_get_mount_2(dev);
4510 CERROR("Cannot get mount info for %s!\n", dev);
4513 lsi = s2lsi(lmi->lmi_sb);
4514 fsoptions_to_mdt_flags(m, lsi->lsi_lmd->lmd_opts);
4515 /* CMD is supported only in IAM mode */
4518 node_id = simple_strtol(num, NULL, 10);
4519 if (!(ldd->ldd_flags & LDD_F_IAM_DIR) && node_id) {
4520 CERROR("CMD Operation not allowed in IOP mode\n");
4521 GOTO(err_lmi, rc = -EINVAL);
4523 /* Read recovery timeouts */
4524 if (lsi->lsi_lmd && lsi->lsi_lmd->lmd_recovery_time_soft)
4525 obd->obd_recovery_timeout =
4526 lsi->lsi_lmd->lmd_recovery_time_soft;
4528 if (lsi->lsi_lmd && lsi->lsi_lmd->lmd_recovery_time_hard)
4529 obd->obd_recovery_time_hard =
4530 lsi->lsi_lmd->lmd_recovery_time_hard;
4533 cfs_rwlock_init(&m->mdt_sptlrpc_lock);
4534 sptlrpc_rule_set_init(&m->mdt_sptlrpc_rset);
4536 cfs_spin_lock_init(&m->mdt_ioepoch_lock);
4537 m->mdt_opts.mo_compat_resname = 0;
4538 m->mdt_capa_timeout = CAPA_TIMEOUT;
4539 m->mdt_capa_alg = CAPA_HMAC_ALG_SHA1;
4540 m->mdt_ck_timeout = CAPA_KEY_TIMEOUT;
4541 m->mdt_squash_uid = 0;
4542 m->mdt_squash_gid = 0;
4543 CFS_INIT_LIST_HEAD(&m->mdt_nosquash_nids);
4544 m->mdt_nosquash_str = NULL;
4545 m->mdt_nosquash_strlen = 0;
4546 cfs_init_rwsem(&m->mdt_squash_sem);
4548 OBD_ALLOC_PTR(mite);
4550 GOTO(err_lmi, rc = -ENOMEM);
4554 m->mdt_md_dev.md_lu_dev.ld_ops = &mdt_lu_ops;
4555 m->mdt_md_dev.md_lu_dev.ld_obd = obd;
4556 /* set this lu_device to obd, because error handling need it */
4557 obd->obd_lu_dev = &m->mdt_md_dev.md_lu_dev;
4559 rc = lu_site_init(s, &m->mdt_md_dev.md_lu_dev);
4561 CERROR("Can't init lu_site, rc %d\n", rc);
4562 GOTO(err_free_site, rc);
4565 rc = mdt_procfs_init(m, dev);
4567 CERROR("Can't init MDT lprocfs, rc %d\n", rc);
4568 GOTO(err_fini_proc, rc);
4571 /* set server index */
4572 lu_site2md(s)->ms_node_id = node_id;
4574 /* failover is the default
4575 * FIXME: we do not failout mds0/mgs, which may cause some problems.
4576 * assumed whose ms_node_id == 0 XXX
4578 obd->obd_replayable = 1;
4579 /* No connection accepted until configurations will finish */
4580 obd->obd_no_conn = 1;
4582 if (cfg->lcfg_bufcount > 4 && LUSTRE_CFG_BUFLEN(cfg, 4) > 0) {
4583 char *str = lustre_cfg_string(cfg, 4);
4584 if (strchr(str, 'n')) {
4585 CWARN("%s: recovery disabled\n", obd->obd_name);
4586 obd->obd_replayable = 0;
4590 /* init the stack */
4591 rc = mdt_stack_init((struct lu_env *)env, m, cfg, lmi);
4593 CERROR("Can't init device stack, rc %d\n", rc);
4594 GOTO(err_fini_proc, rc);
4597 rc = lut_init(env, &m->mdt_lut, obd, m->mdt_bottom);
4599 GOTO(err_fini_stack, rc);
4601 rc = mdt_fld_init(env, obd->obd_name, m);
4605 rc = mdt_seq_init(env, obd->obd_name, m);
4607 GOTO(err_fini_fld, rc);
4609 snprintf(info->mti_u.ns_name, sizeof info->mti_u.ns_name,
4610 LUSTRE_MDT_NAME"-%p", m);
4611 m->mdt_namespace = ldlm_namespace_new(obd, info->mti_u.ns_name,
4612 LDLM_NAMESPACE_SERVER,
4613 LDLM_NAMESPACE_GREEDY,
4615 if (m->mdt_namespace == NULL)
4616 GOTO(err_fini_seq, rc = -ENOMEM);
4618 ldlm_register_intent(m->mdt_namespace, mdt_intent_policy);
4619 /* set obd_namespace for compatibility with old code */
4620 obd->obd_namespace = m->mdt_namespace;
4622 /* XXX: to support suppgid for ACL, we enable identity_upcall
4623 * by default, otherwise, maybe got unexpected -EACCESS. */
4624 if (m->mdt_opts.mo_acl)
4625 identity_upcall = MDT_IDENTITY_UPCALL_PATH;
4627 m->mdt_identity_cache = upcall_cache_init(obd->obd_name, identity_upcall,
4628 &mdt_identity_upcall_cache_ops);
4629 if (IS_ERR(m->mdt_identity_cache)) {
4630 rc = PTR_ERR(m->mdt_identity_cache);
4631 m->mdt_identity_cache = NULL;
4632 GOTO(err_free_ns, rc);
4635 cfs_timer_init(&m->mdt_ck_timer, mdt_ck_timer_callback, m);
4637 rc = mdt_ck_thread_start(m);
4639 GOTO(err_free_ns, rc);
4641 rc = mdt_fs_setup(env, m, obd, lsi);
4645 rc = mdt_obd_llog_setup(obd, lsi);
4647 GOTO(err_fs_cleanup, rc);
4649 rc = mdt_llog_ctxt_clone(env, m, LLOG_CHANGELOG_ORIG_CTXT);
4651 GOTO(err_llog_cleanup, rc);
4653 mdt_adapt_sptlrpc_conf(obd, 1);
4655 #ifdef HAVE_QUOTA_SUPPORT
4656 next = m->mdt_child;
4657 rc = next->md_ops->mdo_quota.mqo_setup(env, next, lmi->lmi_mnt);
4659 GOTO(err_llog_cleanup, rc);
4662 server_put_mount_2(dev, lmi->lmi_mnt);
4665 target_recovery_init(&m->mdt_lut, mdt_recovery_handle);
4667 rc = mdt_start_ptlrpc_service(m);
4669 GOTO(err_recovery, rc);
4671 ping_evictor_start();
4673 rc = lu_site_init_finish(s);
4675 GOTO(err_stop_service, rc);
4677 if (obd->obd_recovering == 0)
4678 mdt_postrecov(env, m);
4680 mdt_init_capa_ctxt(env, m);
4682 /* Reduce the initial timeout on an MDS because it doesn't need such
4683 * a long timeout as an OST does. Adaptive timeouts will adjust this
4684 * value appropriately. */
4685 if (ldlm_timeout == LDLM_TIMEOUT_DEFAULT)
4686 ldlm_timeout = MDS_LDLM_TIMEOUT_DEFAULT;
4691 ping_evictor_stop();
4692 mdt_stop_ptlrpc_service(m);
4694 target_recovery_fini(obd);
4695 #ifdef HAVE_QUOTA_SUPPORT
4696 next->md_ops->mdo_quota.mqo_cleanup(env, next);
4699 mdt_llog_ctxt_unclone(env, m, LLOG_CHANGELOG_ORIG_CTXT);
4700 mdt_obd_llog_cleanup(obd);
4702 mdt_fs_cleanup(env, m);
4704 cfs_timer_disarm(&m->mdt_ck_timer);
4705 mdt_ck_thread_stop(m);
4707 upcall_cache_cleanup(m->mdt_identity_cache);
4708 m->mdt_identity_cache = NULL;
4709 ldlm_namespace_free(m->mdt_namespace, NULL, 0);
4710 obd->obd_namespace = m->mdt_namespace = NULL;
4712 mdt_seq_fini(env, m);
4714 mdt_fld_fini(env, m);
4716 lut_fini(env, &m->mdt_lut);
4718 mdt_stack_fini(env, m, md2lu_dev(m->mdt_child));
4726 server_put_mount_2(dev, lmi->lmi_mnt);
4730 /* used by MGS to process specific configurations */
4731 static int mdt_process_config(const struct lu_env *env,
4732 struct lu_device *d, struct lustre_cfg *cfg)
4734 struct mdt_device *m = mdt_dev(d);
4735 struct md_device *md_next = m->mdt_child;
4736 struct lu_device *next = md2lu_dev(md_next);
4740 switch (cfg->lcfg_command) {
4742 struct lprocfs_static_vars lvars;
4743 struct obd_device *obd = d->ld_obd;
4746 * For interoperability between 1.8 and 2.0,
4747 * skip old "mdt.group_upcall" param.
4750 char *param = lustre_cfg_string(cfg, 1);
4751 if (param && !strncmp("mdt.group_upcall", param, 16)) {
4752 CWARN("For 1.8 interoperability, skip this"
4753 " mdt.group_upcall. It is obsolete\n");
4758 lprocfs_mdt_init_vars(&lvars);
4759 rc = class_process_proc_param(PARAM_MDT, lvars.obd_vars,
4761 if (rc > 0 || rc == -ENOSYS)
4762 /* we don't understand; pass it on */
4763 rc = next->ld_ops->ldo_process_config(env, next, cfg);
4768 * Add mdc hook to get first MDT uuid and connect it to
4769 * ls->controller to use for seq manager.
4771 rc = next->ld_ops->ldo_process_config(env, next, cfg);
4773 CERROR("Can't add mdc, rc %d\n", rc);
4775 rc = mdt_seq_init_cli(env, mdt_dev(d), cfg);
4778 /* others are passed further */
4779 rc = next->ld_ops->ldo_process_config(env, next, cfg);
4785 static struct lu_object *mdt_object_alloc(const struct lu_env *env,
4786 const struct lu_object_header *hdr,
4787 struct lu_device *d)
4789 struct mdt_object *mo;
4795 struct lu_object *o;
4796 struct lu_object_header *h;
4798 o = &mo->mot_obj.mo_lu;
4799 h = &mo->mot_header;
4800 lu_object_header_init(h);
4801 lu_object_init(o, h, d);
4802 lu_object_add_top(h, o);
4803 o->lo_ops = &mdt_obj_ops;
4804 cfs_sema_init(&mo->mot_ioepoch_sem, 1);
4810 static int mdt_object_init(const struct lu_env *env, struct lu_object *o,
4811 const struct lu_object_conf *unused)
4813 struct mdt_device *d = mdt_dev(o->lo_dev);
4814 struct lu_device *under;
4815 struct lu_object *below;
4819 CDEBUG(D_INFO, "object init, fid = "DFID"\n",
4820 PFID(lu_object_fid(o)));
4822 under = &d->mdt_child->md_lu_dev;
4823 below = under->ld_ops->ldo_object_alloc(env, o->lo_header, under);
4824 if (below != NULL) {
4825 lu_object_add(o, below);
4832 static void mdt_object_free(const struct lu_env *env, struct lu_object *o)
4834 struct mdt_object *mo = mdt_obj(o);
4835 struct lu_object_header *h;
4839 CDEBUG(D_INFO, "object free, fid = "DFID"\n",
4840 PFID(lu_object_fid(o)));
4843 lu_object_header_fini(h);
4848 static int mdt_object_print(const struct lu_env *env, void *cookie,
4849 lu_printer_t p, const struct lu_object *o)
4851 struct mdt_object *mdto = mdt_obj((struct lu_object *)o);
4852 return (*p)(env, cookie, LUSTRE_MDT_NAME"-object@%p(ioepoch="LPU64" "
4853 "flags="LPX64", epochcount=%d, writecount=%d)",
4854 mdto, mdto->mot_ioepoch, mdto->mot_flags,
4855 mdto->mot_ioepoch_count, mdto->mot_writecount);
4858 static const struct lu_device_operations mdt_lu_ops = {
4859 .ldo_object_alloc = mdt_object_alloc,
4860 .ldo_process_config = mdt_process_config,
4863 static const struct lu_object_operations mdt_obj_ops = {
4864 .loo_object_init = mdt_object_init,
4865 .loo_object_free = mdt_object_free,
4866 .loo_object_print = mdt_object_print
4869 static int mdt_obd_set_info_async(struct obd_export *exp,
4870 __u32 keylen, void *key,
4871 __u32 vallen, void *val,
4872 struct ptlrpc_request_set *set)
4874 struct obd_device *obd = exp->exp_obd;
4880 if (KEY_IS(KEY_SPTLRPC_CONF)) {
4881 rc = mdt_adapt_sptlrpc_conf(obd, 0);
4888 /* mds_connect_internal */
4889 static int mdt_connect_internal(struct obd_export *exp,
4890 struct mdt_device *mdt,
4891 struct obd_connect_data *data)
4894 data->ocd_connect_flags &= MDT_CONNECT_SUPPORTED;
4895 data->ocd_ibits_known &= MDS_INODELOCK_FULL;
4897 /* If no known bits (which should not happen, probably,
4898 as everybody should support LOOKUP and UPDATE bits at least)
4899 revert to compat mode with plain locks. */
4900 if (!data->ocd_ibits_known &&
4901 data->ocd_connect_flags & OBD_CONNECT_IBITS)
4902 data->ocd_connect_flags &= ~OBD_CONNECT_IBITS;
4904 if (!mdt->mdt_opts.mo_acl)
4905 data->ocd_connect_flags &= ~OBD_CONNECT_ACL;
4907 if (!mdt->mdt_opts.mo_user_xattr)
4908 data->ocd_connect_flags &= ~OBD_CONNECT_XATTR;
4910 if (!mdt->mdt_som_conf)
4911 data->ocd_connect_flags &= ~OBD_CONNECT_SOM;
4913 cfs_spin_lock(&exp->exp_lock);
4914 exp->exp_connect_flags = data->ocd_connect_flags;
4915 cfs_spin_unlock(&exp->exp_lock);
4916 data->ocd_version = LUSTRE_VERSION_CODE;
4917 exp->exp_mdt_data.med_ibits_known = data->ocd_ibits_known;
4921 if (mdt->mdt_opts.mo_acl &&
4922 ((exp->exp_connect_flags & OBD_CONNECT_ACL) == 0)) {
4923 CWARN("%s: MDS requires ACL support but client does not\n",
4924 mdt->mdt_md_dev.md_lu_dev.ld_obd->obd_name);
4929 if ((exp->exp_connect_flags & OBD_CONNECT_FID) == 0) {
4930 CWARN("%s: MDS requires FID support, but client not\n",
4931 mdt->mdt_md_dev.md_lu_dev.ld_obd->obd_name);
4935 if (mdt->mdt_som_conf && !exp_connect_som(exp) &&
4936 !(exp->exp_connect_flags & OBD_CONNECT_MDS_MDS)) {
4937 CWARN("%s: MDS has SOM enabled, but client does not support "
4938 "it\n", mdt->mdt_md_dev.md_lu_dev.ld_obd->obd_name);
4945 static int mdt_connect_check_sptlrpc(struct mdt_device *mdt,
4946 struct obd_export *exp,
4947 struct ptlrpc_request *req)
4949 struct sptlrpc_flavor flvr;
4952 if (exp->exp_flvr.sf_rpc == SPTLRPC_FLVR_INVALID) {
4953 cfs_read_lock(&mdt->mdt_sptlrpc_lock);
4954 sptlrpc_target_choose_flavor(&mdt->mdt_sptlrpc_rset,
4958 cfs_read_unlock(&mdt->mdt_sptlrpc_lock);
4960 cfs_spin_lock(&exp->exp_lock);
4962 exp->exp_sp_peer = req->rq_sp_from;
4963 exp->exp_flvr = flvr;
4965 if (exp->exp_flvr.sf_rpc != SPTLRPC_FLVR_ANY &&
4966 exp->exp_flvr.sf_rpc != req->rq_flvr.sf_rpc) {
4967 CERROR("unauthorized rpc flavor %x from %s, "
4968 "expect %x\n", req->rq_flvr.sf_rpc,
4969 libcfs_nid2str(req->rq_peer.nid),
4970 exp->exp_flvr.sf_rpc);
4974 cfs_spin_unlock(&exp->exp_lock);
4976 if (exp->exp_sp_peer != req->rq_sp_from) {
4977 CERROR("RPC source %s doesn't match %s\n",
4978 sptlrpc_part2name(req->rq_sp_from),
4979 sptlrpc_part2name(exp->exp_sp_peer));
4982 rc = sptlrpc_target_export_check(exp, req);
4989 /* mds_connect copy */
4990 static int mdt_obd_connect(const struct lu_env *env,
4991 struct obd_export **exp, struct obd_device *obd,
4992 struct obd_uuid *cluuid,
4993 struct obd_connect_data *data,
4996 struct mdt_thread_info *info;
4997 struct obd_export *lexp;
4998 struct lustre_handle conn = { 0 };
4999 struct mdt_device *mdt;
5000 struct ptlrpc_request *req;
5004 LASSERT(env != NULL);
5005 if (!exp || !obd || !cluuid)
5008 info = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
5009 req = info->mti_pill->rc_req;
5010 mdt = mdt_dev(obd->obd_lu_dev);
5012 rc = class_connect(&conn, obd, cluuid);
5016 lexp = class_conn2export(&conn);
5017 LASSERT(lexp != NULL);
5019 rc = mdt_connect_check_sptlrpc(mdt, lexp, req);
5023 rc = mdt_connect_internal(lexp, mdt, data);
5025 struct mdt_thread_info *mti;
5026 struct lsd_client_data *lcd = lexp->exp_target_data.ted_lcd;
5028 mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
5029 LASSERT(mti != NULL);
5030 mti->mti_exp = lexp;
5031 memcpy(lcd->lcd_uuid, cluuid, sizeof lcd->lcd_uuid);
5032 rc = mdt_client_new(env, mdt);
5034 mdt_export_stats_init(obd, lexp, 0, localdata);
5039 class_disconnect(lexp);
5048 static int mdt_obd_reconnect(const struct lu_env *env,
5049 struct obd_export *exp, struct obd_device *obd,
5050 struct obd_uuid *cluuid,
5051 struct obd_connect_data *data,
5054 struct mdt_thread_info *info;
5055 struct mdt_device *mdt;
5056 struct ptlrpc_request *req;
5060 if (exp == NULL || obd == NULL || cluuid == NULL)
5063 info = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
5064 req = info->mti_pill->rc_req;
5065 mdt = mdt_dev(obd->obd_lu_dev);
5067 rc = mdt_connect_check_sptlrpc(mdt, exp, req);
5071 rc = mdt_connect_internal(exp, mdt_dev(obd->obd_lu_dev), data);
5073 mdt_export_stats_init(obd, exp, 1, localdata);
5077 static int mdt_export_cleanup(struct obd_export *exp)
5079 struct mdt_export_data *med = &exp->exp_mdt_data;
5080 struct obd_device *obd = exp->exp_obd;
5081 struct mdt_device *mdt;
5082 struct mdt_thread_info *info;
5084 CFS_LIST_HEAD(closing_list);
5085 struct mdt_file_data *mfd, *n;
5089 cfs_spin_lock(&med->med_open_lock);
5090 while (!cfs_list_empty(&med->med_open_head)) {
5091 cfs_list_t *tmp = med->med_open_head.next;
5092 mfd = cfs_list_entry(tmp, struct mdt_file_data, mfd_list);
5094 /* Remove mfd handle so it can't be found again.
5095 * We are consuming the mfd_list reference here. */
5096 class_handle_unhash(&mfd->mfd_handle);
5097 cfs_list_move_tail(&mfd->mfd_list, &closing_list);
5099 cfs_spin_unlock(&med->med_open_lock);
5100 mdt = mdt_dev(obd->obd_lu_dev);
5101 LASSERT(mdt != NULL);
5103 rc = lu_env_init(&env, LCT_MD_THREAD);
5107 info = lu_context_key_get(&env.le_ctx, &mdt_thread_key);
5108 LASSERT(info != NULL);
5109 memset(info, 0, sizeof *info);
5110 info->mti_env = &env;
5111 info->mti_mdt = mdt;
5112 info->mti_exp = exp;
5114 if (!cfs_list_empty(&closing_list)) {
5115 struct md_attr *ma = &info->mti_attr;
5119 lmm_size = mdt->mdt_max_mdsize;
5120 OBD_ALLOC(ma->ma_lmm, lmm_size);
5121 if (ma->ma_lmm == NULL)
5122 GOTO(out_lmm, rc = -ENOMEM);
5124 cookie_size = mdt->mdt_max_cookiesize;
5125 OBD_ALLOC(ma->ma_cookie, cookie_size);
5126 if (ma->ma_cookie == NULL)
5127 GOTO(out_cookie, rc = -ENOMEM);
5129 /* Close any open files (which may also cause orphan unlinking). */
5130 cfs_list_for_each_entry_safe(mfd, n, &closing_list, mfd_list) {
5131 cfs_list_del_init(&mfd->mfd_list);
5132 memset(&ma->ma_attr, 0, sizeof(ma->ma_attr));
5133 ma->ma_lmm_size = lmm_size;
5134 ma->ma_cookie_size = cookie_size;
5136 /* It is not for setattr, just tell MDD to send
5137 * DESTROY RPC to OSS if needed */
5138 ma->ma_attr_flags = MDS_CLOSE_CLEANUP;
5139 ma->ma_valid = MA_FLAGS;
5140 mdt_mfd_close(info, mfd);
5142 OBD_FREE(ma->ma_cookie, cookie_size);
5143 ma->ma_cookie = NULL;
5145 OBD_FREE(ma->ma_lmm, lmm_size);
5149 info->mti_mdt = NULL;
5150 /* cleanup client slot early */
5151 /* Do not erase record for recoverable client. */
5152 if (!obd->obd_fail || exp->exp_failed)
5153 mdt_client_del(&env, mdt);
5159 static int mdt_obd_disconnect(struct obd_export *exp)
5165 class_export_get(exp);
5167 rc = server_disconnect_export(exp);
5169 CDEBUG(D_IOCTL, "server disconnect error: %d\n", rc);
5171 rc = mdt_export_cleanup(exp);
5172 class_export_put(exp);
5176 /* FIXME: Can we avoid using these two interfaces? */
5177 static int mdt_init_export(struct obd_export *exp)
5179 struct mdt_export_data *med = &exp->exp_mdt_data;
5183 CFS_INIT_LIST_HEAD(&med->med_open_head);
5184 cfs_spin_lock_init(&med->med_open_lock);
5185 cfs_sema_init(&med->med_idmap_sem, 1);
5186 med->med_idmap = NULL;
5187 cfs_spin_lock(&exp->exp_lock);
5188 exp->exp_connecting = 1;
5189 cfs_spin_unlock(&exp->exp_lock);
5190 rc = lut_client_alloc(exp);
5192 rc = ldlm_init_export(exp);
5195 CERROR("Error %d while initializing export\n", rc);
5199 static int mdt_destroy_export(struct obd_export *exp)
5201 struct mdt_export_data *med;
5205 med = &exp->exp_mdt_data;
5206 if (exp_connect_rmtclient(exp))
5207 mdt_cleanup_idmap(&exp->exp_mdt_data);
5209 target_destroy_export(exp);
5210 ldlm_destroy_export(exp);
5211 lut_client_free(exp);
5213 LASSERT(cfs_list_empty(&exp->exp_outstanding_replies));
5214 LASSERT(cfs_list_empty(&exp->exp_mdt_data.med_open_head));
5215 if (obd_uuid_equals(&exp->exp_client_uuid, &exp->exp_obd->obd_uuid))
5221 static void mdt_allow_cli(struct mdt_device *m, unsigned int flag)
5223 if (flag & CONFIG_LOG)
5224 cfs_set_bit(MDT_FL_CFGLOG, &m->mdt_state);
5226 /* also notify active event */
5227 if (flag & CONFIG_SYNC)
5228 cfs_set_bit(MDT_FL_SYNCED, &m->mdt_state);
5230 if (cfs_test_bit(MDT_FL_CFGLOG, &m->mdt_state) &&
5231 cfs_test_bit(MDT_FL_SYNCED, &m->mdt_state)) {
5232 struct obd_device *obd = m->mdt_md_dev.md_lu_dev.ld_obd;
5234 /* Open for clients */
5235 if (obd->obd_no_conn) {
5236 cfs_spin_lock(&obd->obd_dev_lock);
5237 obd->obd_no_conn = 0;
5238 cfs_spin_unlock(&obd->obd_dev_lock);
5243 static int mdt_upcall(const struct lu_env *env, struct md_device *md,
5244 enum md_upcall_event ev, void *data)
5246 struct mdt_device *m = mdt_dev(&md->md_lu_dev);
5247 struct md_device *next = m->mdt_child;
5248 struct mdt_thread_info *mti;
5254 rc = next->md_ops->mdo_maxsize_get(env, next,
5256 &m->mdt_max_cookiesize);
5257 CDEBUG(D_INFO, "get max mdsize %d max cookiesize %d\n",
5258 m->mdt_max_mdsize, m->mdt_max_cookiesize);
5259 mdt_allow_cli(m, CONFIG_SYNC);
5262 m->mdt_lut.lut_obd->u.obt.obt_mount_count;
5265 mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
5266 mti->mti_no_need_trans = 1;
5267 CDEBUG(D_INFO, "disable mdt trans for this thread\n");
5270 /* Check that MDT is not yet configured */
5271 LASSERT(!cfs_test_bit(MDT_FL_CFGLOG, &m->mdt_state));
5273 #ifdef HAVE_QUOTA_SUPPORT
5275 if (md->md_lu_dev.ld_obd->obd_recovering == 0 &&
5276 likely(md->md_lu_dev.ld_obd->obd_stopping == 0))
5277 next->md_ops->mdo_quota.mqo_recovery(env, next);
5281 CERROR("invalid event\n");
5288 static int mdt_obd_notify(struct obd_device *host,
5289 struct obd_device *watched,
5290 enum obd_notify_event ev, void *data)
5292 struct mdt_device *mdt = mdt_dev(host->obd_lu_dev);
5293 #ifdef HAVE_QUOTA_SUPPORT
5294 struct md_device *next = mdt->mdt_child;
5299 case OBD_NOTIFY_CONFIG:
5300 mdt_allow_cli(mdt, (unsigned long)data);
5302 #ifdef HAVE_QUOTA_SUPPORT
5303 /* quota_type has been processed, we can now handle
5304 * incoming quota requests */
5305 next->md_ops->mdo_quota.mqo_notify(NULL, next);
5309 CDEBUG(D_INFO, "Unhandled notification %#x\n", ev);
5314 static int mdt_rpc_fid2path(struct mdt_thread_info *info, void *key,
5315 void *val, int vallen)
5317 struct mdt_device *mdt = mdt_dev(info->mti_exp->exp_obd->obd_lu_dev);
5318 struct getinfo_fid2path *fpout, *fpin;
5321 fpin = key + cfs_size_round(sizeof(KEY_FID2PATH));
5324 if (ptlrpc_req_need_swab(info->mti_pill->rc_req))
5325 lustre_swab_fid2path(fpin);
5327 memcpy(fpout, fpin, sizeof(*fpin));
5328 if (fpout->gf_pathlen != vallen - sizeof(*fpin))
5331 rc = mdt_fid2path(info->mti_env, mdt, fpout);
5335 static int mdt_fid2path(const struct lu_env *env, struct mdt_device *mdt,
5336 struct getinfo_fid2path *fp)
5338 struct mdt_object *obj;
5342 CDEBUG(D_IOCTL, "path get "DFID" from "LPU64" #%d\n",
5343 PFID(&fp->gf_fid), fp->gf_recno, fp->gf_linkno);
5345 if (!fid_is_sane(&fp->gf_fid))
5348 obj = mdt_object_find(env, mdt, &fp->gf_fid);
5349 if (obj == NULL || IS_ERR(obj)) {
5350 CDEBUG(D_IOCTL, "no object "DFID": %ld\n",PFID(&fp->gf_fid),
5355 rc = lu_object_exists(&obj->mot_obj.mo_lu);
5361 mdt_object_put(env, obj);
5362 CDEBUG(D_IOCTL, "nonlocal object "DFID": %d\n",
5363 PFID(&fp->gf_fid), rc);
5367 rc = mo_path(env, md_object_next(&obj->mot_obj), fp->gf_path,
5368 fp->gf_pathlen, &fp->gf_recno, &fp->gf_linkno);
5369 mdt_object_put(env, obj);
5374 static int mdt_get_info(struct mdt_thread_info *info)
5376 struct ptlrpc_request *req = mdt_info_req(info);
5384 key = req_capsule_client_get(info->mti_pill, &RMF_GETINFO_KEY);
5386 CDEBUG(D_IOCTL, "No GETINFO key");
5389 keylen = req_capsule_get_size(info->mti_pill, &RMF_GETINFO_KEY,
5392 vallen = req_capsule_client_get(info->mti_pill, &RMF_GETINFO_VALLEN);
5393 if (vallen == NULL) {
5394 CDEBUG(D_IOCTL, "Unable to get RMF_GETINFO_VALLEN buffer");
5398 req_capsule_set_size(info->mti_pill, &RMF_GETINFO_VAL, RCL_SERVER,
5400 rc = req_capsule_server_pack(info->mti_pill);
5401 valout = req_capsule_server_get(info->mti_pill, &RMF_GETINFO_VAL);
5402 if (valout == NULL) {
5403 CDEBUG(D_IOCTL, "Unable to get get-info RPC out buffer");
5407 if (KEY_IS(KEY_FID2PATH))
5408 rc = mdt_rpc_fid2path(info, key, valout, *vallen);
5412 lustre_msg_set_status(req->rq_repmsg, rc);
5417 /* Pass the ioc down */
5418 static int mdt_ioc_child(struct lu_env *env, struct mdt_device *mdt,
5419 unsigned int cmd, int len, void *data)
5421 struct lu_context ioctl_session;
5422 struct md_device *next = mdt->mdt_child;
5426 rc = lu_context_init(&ioctl_session, LCT_SESSION);
5429 ioctl_session.lc_thread = (struct ptlrpc_thread *)cfs_current();
5430 lu_context_enter(&ioctl_session);
5431 env->le_ses = &ioctl_session;
5433 LASSERT(next->md_ops->mdo_iocontrol);
5434 rc = next->md_ops->mdo_iocontrol(env, next, cmd, len, data);
5436 lu_context_exit(&ioctl_session);
5437 lu_context_fini(&ioctl_session);
5441 static int mdt_ioc_version_get(struct mdt_thread_info *mti, void *karg)
5443 struct obd_ioctl_data *data = karg;
5444 struct lu_fid *fid = (struct lu_fid *)data->ioc_inlbuf1;
5446 struct mdt_object *obj;
5447 struct mdt_lock_handle *lh;
5450 CDEBUG(D_IOCTL, "getting version for "DFID"\n", PFID(fid));
5451 if (!fid_is_sane(fid))
5454 lh = &mti->mti_lh[MDT_LH_PARENT];
5455 mdt_lock_reg_init(lh, LCK_CR);
5457 obj = mdt_object_find_lock(mti, fid, lh, MDS_INODELOCK_UPDATE);
5459 RETURN(PTR_ERR(obj));
5461 rc = mdt_object_exists(obj);
5465 * before calling version get the correct MDS should be
5466 * fid, this is error to find remote object here
5468 CERROR("nonlocal object "DFID"\n", PFID(fid));
5470 version = mo_version_get(mti->mti_env, mdt_object_child(obj));
5471 *(__u64 *)data->ioc_inlbuf2 = version;
5474 mdt_object_unlock_put(mti, obj, lh, 1);
5478 /* ioctls on obd dev */
5479 static int mdt_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
5480 void *karg, void *uarg)
5483 struct obd_device *obd = exp->exp_obd;
5484 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
5485 struct dt_device *dt = mdt->mdt_bottom;
5489 CDEBUG(D_IOCTL, "handling ioctl cmd %#x\n", cmd);
5490 rc = lu_env_init(&env, LCT_MD_THREAD);
5496 rc = mdt_device_sync(&env, mdt);
5498 case OBD_IOC_SET_READONLY:
5499 dt->dd_ops->dt_ro(&env, dt);
5501 case OBD_IOC_ABORT_RECOVERY:
5502 CERROR("Aborting recovery for device %s\n", obd->obd_name);
5503 target_stop_recovery_thread(obd);
5506 case OBD_IOC_CHANGELOG_REG:
5507 case OBD_IOC_CHANGELOG_DEREG:
5508 case OBD_IOC_CHANGELOG_CLEAR:
5509 rc = mdt_ioc_child(&env, mdt, cmd, len, karg);
5511 case OBD_IOC_GET_OBJ_VERSION: {
5512 struct mdt_thread_info *mti;
5513 mti = lu_context_key_get(&env.le_ctx, &mdt_thread_key);
5514 memset(mti, 0, sizeof *mti);
5515 mti->mti_env = &env;
5519 rc = mdt_ioc_version_get(mti, karg);
5523 CERROR("Not supported cmd = %d for device %s\n",
5524 cmd, obd->obd_name);
5532 int mdt_postrecov(const struct lu_env *env, struct mdt_device *mdt)
5534 struct lu_device *ld = md2lu_dev(mdt->mdt_child);
5535 #ifdef HAVE_QUOTA_SUPPORT
5536 struct obd_device *obd = mdt2obd_dev(mdt);
5537 struct md_device *next = mdt->mdt_child;
5542 rc = ld->ld_ops->ldo_recovery_complete(env, ld);
5543 #ifdef HAVE_QUOTA_SUPPORT
5544 if (likely(obd->obd_stopping == 0))
5545 next->md_ops->mdo_quota.mqo_recovery(env, next);
5550 int mdt_obd_postrecov(struct obd_device *obd)
5555 rc = lu_env_init(&env, LCT_MD_THREAD);
5558 rc = mdt_postrecov(&env, mdt_dev(obd->obd_lu_dev));
5564 * Send a copytool req to a client
5565 * Note this sends a request RPC from a server (MDT) to a client (MDC),
5566 * backwards of normal comms.
5568 int mdt_hsm_copytool_send(struct obd_export *exp)
5571 struct hsm_action_list *hal;
5572 struct hsm_action_item *hai;
5576 CWARN("%s: writing to mdc at %s\n", exp->exp_obd->obd_name,
5577 libcfs_nid2str(exp->exp_connection->c_peer.nid));
5579 len = sizeof(*lh) + sizeof(*hal) + MTI_NAME_MAXLEN +
5580 /* for mockup below */ 2 * cfs_size_round(sizeof(*hai));
5585 lh->kuc_magic = KUC_MAGIC;
5586 lh->kuc_transport = KUC_TRANSPORT_HSM;
5587 lh->kuc_msgtype = HMT_ACTION_LIST;
5588 lh->kuc_msglen = len;
5590 hal = (struct hsm_action_list *)(lh + 1);
5591 hal->hal_version = HAL_VERSION;
5592 hal->hal_archive_num = 1;
5593 obd_uuid2fsname(hal->hal_fsname, exp->exp_obd->obd_name,
5596 /* mock up an action list */
5598 hai = hai_zero(hal);
5599 hai->hai_action = HSMA_ARCHIVE;
5600 hai->hai_fid.f_oid = 0xA00A;
5601 hai->hai_len = sizeof(*hai);
5602 hai = hai_next(hai);
5603 hai->hai_action = HSMA_RESTORE;
5604 hai->hai_fid.f_oid = 0xB00B;
5605 hai->hai_len = sizeof(*hai);
5607 /* Uses the ldlm reverse import; this rpc will be seen by
5608 the ldlm_callback_handler */
5609 rc = do_set_info_async(exp->exp_imp_reverse,
5610 LDLM_SET_INFO, LUSTRE_OBD_VERSION,
5611 sizeof(KEY_HSM_COPYTOOL_SEND),
5612 KEY_HSM_COPYTOOL_SEND,
5620 static struct obd_ops mdt_obd_device_ops = {
5621 .o_owner = THIS_MODULE,
5622 .o_set_info_async = mdt_obd_set_info_async,
5623 .o_connect = mdt_obd_connect,
5624 .o_reconnect = mdt_obd_reconnect,
5625 .o_disconnect = mdt_obd_disconnect,
5626 .o_init_export = mdt_init_export,
5627 .o_destroy_export = mdt_destroy_export,
5628 .o_iocontrol = mdt_iocontrol,
5629 .o_postrecov = mdt_obd_postrecov,
5630 .o_notify = mdt_obd_notify
5633 static struct lu_device* mdt_device_fini(const struct lu_env *env,
5634 struct lu_device *d)
5636 struct mdt_device *m = mdt_dev(d);
5643 static struct lu_device *mdt_device_free(const struct lu_env *env,
5644 struct lu_device *d)
5646 struct mdt_device *m = mdt_dev(d);
5649 md_device_fini(&m->mdt_md_dev);
5654 static struct lu_device *mdt_device_alloc(const struct lu_env *env,
5655 struct lu_device_type *t,
5656 struct lustre_cfg *cfg)
5658 struct lu_device *l;
5659 struct mdt_device *m;
5665 l = &m->mdt_md_dev.md_lu_dev;
5666 rc = mdt_init0(env, m, t, cfg);
5668 mdt_device_free(env, l);
5672 md_upcall_init(&m->mdt_md_dev, mdt_upcall);
5674 l = ERR_PTR(-ENOMEM);
5678 /* context key constructor/destructor: mdt_key_init, mdt_key_fini */
5679 LU_KEY_INIT_FINI(mdt, struct mdt_thread_info);
5681 /* context key: mdt_thread_key */
5682 LU_CONTEXT_KEY_DEFINE(mdt, LCT_MD_THREAD);
5684 /* context key constructor/destructor: mdt_txn_key_init, mdt_txn_key_fini */
5685 LU_KEY_INIT_FINI(mdt_txn, struct mdt_txn_info);
5687 struct lu_context_key mdt_txn_key = {
5688 .lct_tags = LCT_TX_HANDLE,
5689 .lct_init = mdt_txn_key_init,
5690 .lct_fini = mdt_txn_key_fini
5693 struct md_ucred *mdt_ucred(const struct mdt_thread_info *info)
5695 return md_ucred(info->mti_env);
5699 * Enable/disable COS (Commit On Sharing).
5701 * Set/Clear the COS flag in mdt options.
5703 * \param mdt mdt device
5704 * \param val 0 disables COS, other values enable COS
5706 void mdt_enable_cos(struct mdt_device *mdt, int val)
5711 mdt->mdt_opts.mo_cos = !!val;
5712 rc = lu_env_init(&env, LCT_MD_THREAD);
5713 if (unlikely(rc != 0)) {
5714 CWARN("lu_env initialization failed with rc = %d,"
5715 "cannot sync\n", rc);
5718 mdt_device_sync(&env, mdt);
5723 * Check COS (Commit On Sharing) status.
5725 * Return COS flag status.
5727 * \param mdt mdt device
5729 int mdt_cos_is_enabled(struct mdt_device *mdt)
5731 return mdt->mdt_opts.mo_cos != 0;
5734 /* type constructor/destructor: mdt_type_init, mdt_type_fini */
5735 LU_TYPE_INIT_FINI(mdt, &mdt_thread_key, &mdt_txn_key);
5737 static struct lu_device_type_operations mdt_device_type_ops = {
5738 .ldto_init = mdt_type_init,
5739 .ldto_fini = mdt_type_fini,
5741 .ldto_start = mdt_type_start,
5742 .ldto_stop = mdt_type_stop,
5744 .ldto_device_alloc = mdt_device_alloc,
5745 .ldto_device_free = mdt_device_free,
5746 .ldto_device_fini = mdt_device_fini
5749 static struct lu_device_type mdt_device_type = {
5750 .ldt_tags = LU_DEVICE_MD,
5751 .ldt_name = LUSTRE_MDT_NAME,
5752 .ldt_ops = &mdt_device_type_ops,
5753 .ldt_ctx_tags = LCT_MD_THREAD
5756 static struct lu_local_obj_desc mdt_last_recv = {
5757 .llod_name = LAST_RCVD,
5758 .llod_oid = MDT_LAST_RECV_OID,
5762 static int __init mdt_mod_init(void)
5764 struct lprocfs_static_vars lvars;
5767 llo_local_obj_register(&mdt_last_recv);
5769 if (mdt_num_threads > 0) {
5770 if (mdt_num_threads > MDT_MAX_THREADS)
5771 mdt_num_threads = MDT_MAX_THREADS;
5772 if (mdt_num_threads < MDT_MIN_THREADS)
5773 mdt_num_threads = MDT_MIN_THREADS;
5774 mdt_max_threads = mdt_min_threads = mdt_num_threads;
5776 mdt_max_threads = MDT_MAX_THREADS;
5777 mdt_min_threads = MDT_MIN_THREADS;
5778 if (mdt_min_threads < MDT_NUM_THREADS)
5779 mdt_min_threads = MDT_NUM_THREADS;
5782 lprocfs_mdt_init_vars(&lvars);
5783 rc = class_register_type(&mdt_obd_device_ops, NULL,
5784 lvars.module_vars, LUSTRE_MDT_NAME,
5790 static void __exit mdt_mod_exit(void)
5792 llo_local_obj_unregister(&mdt_last_recv);
5793 class_unregister_type(LUSTRE_MDT_NAME);
5797 #define DEF_HNDL(prefix, base, suffix, flags, opc, fn, fmt) \
5798 [prefix ## _ ## opc - prefix ## _ ## base] = { \
5800 .mh_fail_id = OBD_FAIL_ ## prefix ## _ ## opc ## suffix, \
5801 .mh_opc = prefix ## _ ## opc, \
5802 .mh_flags = flags, \
5807 #define DEF_MDT_HNDL(flags, name, fn, fmt) \
5808 DEF_HNDL(MDS, GETATTR, _NET, flags, name, fn, fmt)
5810 #define DEF_SEQ_HNDL(flags, name, fn, fmt) \
5811 DEF_HNDL(SEQ, QUERY, _NET, flags, name, fn, fmt)
5813 #define DEF_FLD_HNDL(flags, name, fn, fmt) \
5814 DEF_HNDL(FLD, QUERY, _NET, flags, name, fn, fmt)
5816 * Request with a format known in advance
5818 #define DEF_MDT_HNDL_F(flags, name, fn) \
5819 DEF_HNDL(MDS, GETATTR, _NET, flags, name, fn, &RQF_MDS_ ## name)
5821 #define DEF_SEQ_HNDL_F(flags, name, fn) \
5822 DEF_HNDL(SEQ, QUERY, _NET, flags, name, fn, &RQF_SEQ_ ## name)
5824 #define DEF_FLD_HNDL_F(flags, name, fn) \
5825 DEF_HNDL(FLD, QUERY, _NET, flags, name, fn, &RQF_FLD_ ## name)
5827 * Request with a format we do not yet know
5829 #define DEF_MDT_HNDL_0(flags, name, fn) \
5830 DEF_HNDL(MDS, GETATTR, _NET, flags, name, fn, NULL)
5832 static struct mdt_handler mdt_mds_ops[] = {
5833 DEF_MDT_HNDL_F(0, CONNECT, mdt_connect),
5834 DEF_MDT_HNDL_F(0, DISCONNECT, mdt_disconnect),
5835 DEF_MDT_HNDL (0, SET_INFO, mdt_set_info,
5837 DEF_MDT_HNDL_F(0, GET_INFO, mdt_get_info),
5838 DEF_MDT_HNDL_F(0 |HABEO_REFERO, GETSTATUS, mdt_getstatus),
5839 DEF_MDT_HNDL_F(HABEO_CORPUS, GETATTR, mdt_getattr),
5840 DEF_MDT_HNDL_F(HABEO_CORPUS|HABEO_REFERO, GETATTR_NAME, mdt_getattr_name),
5841 DEF_MDT_HNDL_F(HABEO_CORPUS, GETXATTR, mdt_getxattr),
5842 DEF_MDT_HNDL_F(0 |HABEO_REFERO, STATFS, mdt_statfs),
5843 DEF_MDT_HNDL_F(0 |MUTABOR, REINT, mdt_reint),
5844 DEF_MDT_HNDL_F(HABEO_CORPUS, CLOSE, mdt_close),
5845 DEF_MDT_HNDL_F(HABEO_CORPUS, DONE_WRITING, mdt_done_writing),
5846 DEF_MDT_HNDL_F(0 |HABEO_REFERO, PIN, mdt_pin),
5847 DEF_MDT_HNDL_0(0, SYNC, mdt_sync),
5848 DEF_MDT_HNDL_F(HABEO_CORPUS|HABEO_REFERO, IS_SUBDIR, mdt_is_subdir),
5849 #ifdef HAVE_QUOTA_SUPPORT
5850 DEF_MDT_HNDL_F(0, QUOTACHECK, mdt_quotacheck_handle),
5851 DEF_MDT_HNDL_F(0, QUOTACTL, mdt_quotactl_handle)
5855 #define DEF_OBD_HNDL(flags, name, fn) \
5856 DEF_HNDL(OBD, PING, _NET, flags, name, fn, NULL)
5859 static struct mdt_handler mdt_obd_ops[] = {
5860 DEF_OBD_HNDL(0, PING, mdt_obd_ping),
5861 DEF_OBD_HNDL(0, LOG_CANCEL, mdt_obd_log_cancel),
5862 DEF_OBD_HNDL(0, QC_CALLBACK, mdt_obd_qc_callback)
5865 #define DEF_DLM_HNDL_0(flags, name, fn) \
5866 DEF_HNDL(LDLM, ENQUEUE, , flags, name, fn, NULL)
5867 #define DEF_DLM_HNDL_F(flags, name, fn) \
5868 DEF_HNDL(LDLM, ENQUEUE, , flags, name, fn, &RQF_LDLM_ ## name)
5870 static struct mdt_handler mdt_dlm_ops[] = {
5871 DEF_DLM_HNDL_F(HABEO_CLAVIS, ENQUEUE, mdt_enqueue),
5872 DEF_DLM_HNDL_0(HABEO_CLAVIS, CONVERT, mdt_convert),
5873 DEF_DLM_HNDL_0(0, BL_CALLBACK, mdt_bl_callback),
5874 DEF_DLM_HNDL_0(0, CP_CALLBACK, mdt_cp_callback)
5877 #define DEF_LLOG_HNDL(flags, name, fn) \
5878 DEF_HNDL(LLOG, ORIGIN_HANDLE_CREATE, _NET, flags, name, fn, NULL)
5880 static struct mdt_handler mdt_llog_ops[] = {
5881 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_CREATE, mdt_llog_create),
5882 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_NEXT_BLOCK, mdt_llog_next_block),
5883 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_READ_HEADER, mdt_llog_read_header),
5884 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_WRITE_REC, NULL),
5885 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_CLOSE, NULL),
5886 DEF_LLOG_HNDL(0, ORIGIN_CONNECT, NULL),
5887 DEF_LLOG_HNDL(0, CATINFO, NULL),
5888 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_PREV_BLOCK, mdt_llog_prev_block),
5889 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_DESTROY, mdt_llog_destroy),
5892 #define DEF_SEC_CTX_HNDL(name, fn) \
5893 DEF_HNDL(SEC_CTX, INIT, _NET, 0, name, fn, NULL)
5895 static struct mdt_handler mdt_sec_ctx_ops[] = {
5896 DEF_SEC_CTX_HNDL(INIT, mdt_sec_ctx_handle),
5897 DEF_SEC_CTX_HNDL(INIT_CONT, mdt_sec_ctx_handle),
5898 DEF_SEC_CTX_HNDL(FINI, mdt_sec_ctx_handle)
5901 static struct mdt_opc_slice mdt_regular_handlers[] = {
5903 .mos_opc_start = MDS_GETATTR,
5904 .mos_opc_end = MDS_LAST_OPC,
5905 .mos_hs = mdt_mds_ops
5908 .mos_opc_start = OBD_PING,
5909 .mos_opc_end = OBD_LAST_OPC,
5910 .mos_hs = mdt_obd_ops
5913 .mos_opc_start = LDLM_ENQUEUE,
5914 .mos_opc_end = LDLM_LAST_OPC,
5915 .mos_hs = mdt_dlm_ops
5918 .mos_opc_start = LLOG_ORIGIN_HANDLE_CREATE,
5919 .mos_opc_end = LLOG_LAST_OPC,
5920 .mos_hs = mdt_llog_ops
5923 .mos_opc_start = SEC_CTX_INIT,
5924 .mos_opc_end = SEC_LAST_OPC,
5925 .mos_hs = mdt_sec_ctx_ops
5932 static struct mdt_handler mdt_readpage_ops[] = {
5933 DEF_MDT_HNDL_F(0, CONNECT, mdt_connect),
5934 DEF_MDT_HNDL_F(HABEO_CORPUS|HABEO_REFERO, READPAGE, mdt_readpage),
5935 #ifdef HAVE_SPLIT_SUPPORT
5936 DEF_MDT_HNDL_F(HABEO_CORPUS|HABEO_REFERO, WRITEPAGE, mdt_writepage),
5940 * XXX: this is ugly and should be fixed one day, see mdc_close() for
5941 * detailed comments. --umka
5943 DEF_MDT_HNDL_F(HABEO_CORPUS, CLOSE, mdt_close),
5944 DEF_MDT_HNDL_F(HABEO_CORPUS, DONE_WRITING, mdt_done_writing),
5947 static struct mdt_opc_slice mdt_readpage_handlers[] = {
5949 .mos_opc_start = MDS_GETATTR,
5950 .mos_opc_end = MDS_LAST_OPC,
5951 .mos_hs = mdt_readpage_ops
5958 static struct mdt_handler mdt_xmds_ops[] = {
5959 DEF_MDT_HNDL_F(0, CONNECT, mdt_connect),
5960 DEF_MDT_HNDL_F(HABEO_CORPUS , GETATTR, mdt_getattr),
5961 DEF_MDT_HNDL_F(0 | MUTABOR , REINT, mdt_reint),
5962 DEF_MDT_HNDL_F(HABEO_CORPUS|HABEO_REFERO, IS_SUBDIR, mdt_is_subdir),
5965 static struct mdt_opc_slice mdt_xmds_handlers[] = {
5967 .mos_opc_start = MDS_GETATTR,
5968 .mos_opc_end = MDS_LAST_OPC,
5969 .mos_hs = mdt_xmds_ops
5972 .mos_opc_start = OBD_PING,
5973 .mos_opc_end = OBD_LAST_OPC,
5974 .mos_hs = mdt_obd_ops
5977 .mos_opc_start = SEC_CTX_INIT,
5978 .mos_opc_end = SEC_LAST_OPC,
5979 .mos_hs = mdt_sec_ctx_ops
5986 static struct mdt_handler mdt_seq_ops[] = {
5987 DEF_SEQ_HNDL_F(0, QUERY, (int (*)(struct mdt_thread_info *))seq_query)
5990 static struct mdt_opc_slice mdt_seq_handlers[] = {
5992 .mos_opc_start = SEQ_QUERY,
5993 .mos_opc_end = SEQ_LAST_OPC,
5994 .mos_hs = mdt_seq_ops
6001 static struct mdt_handler mdt_fld_ops[] = {
6002 DEF_FLD_HNDL_F(0, QUERY, (int (*)(struct mdt_thread_info *))fld_query)
6005 static struct mdt_opc_slice mdt_fld_handlers[] = {
6007 .mos_opc_start = FLD_QUERY,
6008 .mos_opc_end = FLD_LAST_OPC,
6009 .mos_hs = mdt_fld_ops
6016 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
6017 MODULE_DESCRIPTION("Lustre Meta-data Target ("LUSTRE_MDT_NAME")");
6018 MODULE_LICENSE("GPL");
6020 CFS_MODULE_PARM(mdt_num_threads, "ul", ulong, 0444,
6021 "number of mdt service threads to start");
6023 cfs_module(mdt, "0.2.0", mdt_mod_init, mdt_mod_exit);