1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/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 /*XXX should pack the reply body according to lu_valid*/
408 b->valid |= OBD_MD_FLCTIME | OBD_MD_FLUID |
409 OBD_MD_FLGID | OBD_MD_FLTYPE |
410 OBD_MD_FLMODE | OBD_MD_FLNLINK | OBD_MD_FLFLAGS |
411 OBD_MD_FLATIME | OBD_MD_FLMTIME ;
413 if (!S_ISREG(attr->la_mode)) {
414 b->valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS | OBD_MD_FLRDEV;
415 } else if (ma->ma_need & MA_LOV && ma->ma_lmm_size == 0) {
416 /* means no objects are allocated on osts. */
417 LASSERT(!(ma->ma_valid & MA_LOV));
418 LASSERT(attr->la_blocks == 0);
419 /* if no object is allocated on osts, the size on mds is valid. b=22272 */
420 b->valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
423 b->atime = attr->la_atime;
424 b->mtime = attr->la_mtime;
425 b->ctime = attr->la_ctime;
426 b->mode = attr->la_mode;
427 b->size = attr->la_size;
428 b->blocks = attr->la_blocks;
429 b->uid = attr->la_uid;
430 b->gid = attr->la_gid;
431 b->flags = attr->la_flags;
432 b->nlink = attr->la_nlink;
433 b->rdev = attr->la_rdev;
437 b->valid |= OBD_MD_FLID;
439 /* FIXME: these should be fixed when new igif ready.*/
440 b->ino = fid_oid(fid); /* 1.6 compatibility */
441 b->generation = fid_ver(fid); /* 1.6 compatibility */
442 b->valid |= OBD_MD_FLGENER; /* 1.6 compatibility */
444 CDEBUG(D_INODE, DFID": nlink=%d, mode=%o, size="LPU64"\n",
445 PFID(fid), b->nlink, b->mode, b->size);
449 mdt_body_reverse_idmap(info, b);
452 static inline int mdt_body_has_lov(const struct lu_attr *la,
453 const struct mdt_body *body)
455 return ((S_ISREG(la->la_mode) && (body->valid & OBD_MD_FLEASIZE)) ||
456 (S_ISDIR(la->la_mode) && (body->valid & OBD_MD_FLDIREA )) );
459 static int mdt_getattr_internal(struct mdt_thread_info *info,
460 struct mdt_object *o, int ma_need)
462 struct md_object *next = mdt_object_child(o);
463 const struct mdt_body *reqbody = info->mti_body;
464 struct ptlrpc_request *req = mdt_info_req(info);
465 struct md_attr *ma = &info->mti_attr;
466 struct lu_attr *la = &ma->ma_attr;
467 struct req_capsule *pill = info->mti_pill;
468 const struct lu_env *env = info->mti_env;
469 struct mdt_body *repbody;
470 struct lu_buf *buffer = &info->mti_buf;
474 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_GETATTR_PACK))
475 RETURN(err_serious(-ENOMEM));
477 repbody = req_capsule_server_get(pill, &RMF_MDT_BODY);
481 rc = mdt_object_exists(o);
483 /* This object is located on remote node.*/
484 repbody->fid1 = *mdt_object_fid(o);
485 repbody->valid = OBD_MD_FLID | OBD_MD_MDS;
489 buffer->lb_buf = req_capsule_server_get(pill, &RMF_MDT_MD);
490 buffer->lb_len = req_capsule_get_size(pill, &RMF_MDT_MD, RCL_SERVER);
492 /* If it is dir object and client require MEA, then we got MEA */
493 if (S_ISDIR(lu_object_attr(&next->mo_lu)) &&
494 reqbody->valid & OBD_MD_MEA) {
495 /* Assumption: MDT_MD size is enough for lmv size. */
496 ma->ma_lmv = buffer->lb_buf;
497 ma->ma_lmv_size = buffer->lb_len;
498 ma->ma_need = MA_LMV | MA_INODE;
500 ma->ma_lmm = buffer->lb_buf;
501 ma->ma_lmm_size = buffer->lb_len;
502 ma->ma_need = MA_LOV | MA_INODE;
505 if (S_ISDIR(lu_object_attr(&next->mo_lu)) &&
506 reqbody->valid & OBD_MD_FLDIREA &&
507 lustre_msg_get_opc(req->rq_reqmsg) == MDS_GETATTR) {
508 /* get default stripe info for this dir. */
509 ma->ma_need |= MA_LOV_DEF;
511 ma->ma_need |= ma_need;
512 if (ma->ma_need & MA_SOM)
513 ma->ma_som = &info->mti_u.som.data;
515 rc = mo_attr_get(env, next, ma);
517 CERROR("getattr error for "DFID": %d\n",
518 PFID(mdt_object_fid(o)), rc);
522 if (likely(ma->ma_valid & MA_INODE))
523 mdt_pack_attr2body(info, repbody, la, mdt_object_fid(o));
527 if (mdt_body_has_lov(la, reqbody)) {
528 if (ma->ma_valid & MA_LOV) {
529 LASSERT(ma->ma_lmm_size);
530 mdt_dump_lmm(D_INFO, ma->ma_lmm);
531 repbody->eadatasize = ma->ma_lmm_size;
532 if (S_ISDIR(la->la_mode))
533 repbody->valid |= OBD_MD_FLDIREA;
535 repbody->valid |= OBD_MD_FLEASIZE;
537 if (ma->ma_valid & MA_LMV) {
538 LASSERT(S_ISDIR(la->la_mode));
539 repbody->eadatasize = ma->ma_lmv_size;
540 repbody->valid |= (OBD_MD_FLDIREA|OBD_MD_MEA);
542 if (!(ma->ma_valid & MA_LOV) && !(ma->ma_valid & MA_LMV)) {
543 repbody->valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
545 } else if (S_ISLNK(la->la_mode) &&
546 reqbody->valid & OBD_MD_LINKNAME) {
547 buffer->lb_buf = ma->ma_lmm;
548 buffer->lb_len = reqbody->eadatasize;
549 rc = mo_readlink(env, next, buffer);
550 if (unlikely(rc <= 0)) {
551 CERROR("readlink failed: %d\n", rc);
554 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_READLINK_EPROTO))
556 repbody->valid |= OBD_MD_LINKNAME;
557 repbody->eadatasize = rc;
559 ((char*)ma->ma_lmm)[rc - 1] = 0;
560 CDEBUG(D_INODE, "symlink dest %s, len = %d\n",
561 (char*)ma->ma_lmm, rc);
566 if (reqbody->valid & OBD_MD_FLMODEASIZE) {
567 repbody->max_cookiesize = info->mti_mdt->mdt_max_cookiesize;
568 repbody->max_mdsize = info->mti_mdt->mdt_max_mdsize;
569 repbody->valid |= OBD_MD_FLMODEASIZE;
570 CDEBUG(D_INODE, "I am going to change the MAX_MD_SIZE & "
571 "MAX_COOKIE to : %d:%d\n", repbody->max_mdsize,
572 repbody->max_cookiesize);
575 if (exp_connect_rmtclient(info->mti_exp) &&
576 reqbody->valid & OBD_MD_FLRMTPERM) {
577 void *buf = req_capsule_server_get(pill, &RMF_ACL);
579 /* mdt_getattr_lock only */
580 rc = mdt_pack_remote_perm(info, o, buf);
582 repbody->valid &= ~OBD_MD_FLRMTPERM;
583 repbody->aclsize = 0;
586 repbody->valid |= OBD_MD_FLRMTPERM;
587 repbody->aclsize = sizeof(struct mdt_remote_perm);
590 #ifdef CONFIG_FS_POSIX_ACL
591 else if ((req->rq_export->exp_connect_flags & OBD_CONNECT_ACL) &&
592 (reqbody->valid & OBD_MD_FLACL)) {
593 buffer->lb_buf = req_capsule_server_get(pill, &RMF_ACL);
594 buffer->lb_len = req_capsule_get_size(pill,
595 &RMF_ACL, RCL_SERVER);
596 if (buffer->lb_len > 0) {
597 rc = mo_xattr_get(env, next, buffer,
598 XATTR_NAME_ACL_ACCESS);
600 if (rc == -ENODATA) {
601 repbody->aclsize = 0;
602 repbody->valid |= OBD_MD_FLACL;
604 } else if (rc == -EOPNOTSUPP) {
607 CERROR("got acl size: %d\n", rc);
610 repbody->aclsize = rc;
611 repbody->valid |= OBD_MD_FLACL;
618 if (reqbody->valid & OBD_MD_FLMDSCAPA &&
619 info->mti_mdt->mdt_opts.mo_mds_capa &&
620 info->mti_exp->exp_connect_flags & OBD_CONNECT_MDS_CAPA) {
621 struct lustre_capa *capa;
623 capa = req_capsule_server_get(pill, &RMF_CAPA1);
625 capa->lc_opc = CAPA_OPC_MDS_DEFAULT;
626 rc = mo_capa_get(env, next, capa, 0);
629 repbody->valid |= OBD_MD_FLMDSCAPA;
634 static int mdt_renew_capa(struct mdt_thread_info *info)
636 struct mdt_object *obj = info->mti_object;
637 struct mdt_body *body;
638 struct lustre_capa *capa, *c;
642 /* if object doesn't exist, or server has disabled capability,
643 * return directly, client will find body->valid OBD_MD_FLOSSCAPA
646 if (!obj || !info->mti_mdt->mdt_opts.mo_oss_capa ||
647 !(info->mti_exp->exp_connect_flags & OBD_CONNECT_OSS_CAPA))
650 body = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
651 LASSERT(body != NULL);
653 c = req_capsule_client_get(info->mti_pill, &RMF_CAPA1);
656 capa = req_capsule_server_get(info->mti_pill, &RMF_CAPA2);
660 rc = mo_capa_get(info->mti_env, mdt_object_child(obj), capa, 1);
662 body->valid |= OBD_MD_FLOSSCAPA;
666 static int mdt_getattr(struct mdt_thread_info *info)
668 struct mdt_object *obj = info->mti_object;
669 struct req_capsule *pill = info->mti_pill;
670 struct mdt_body *reqbody;
671 struct mdt_body *repbody;
677 reqbody = req_capsule_client_get(pill, &RMF_MDT_BODY);
680 if (reqbody->valid & OBD_MD_FLOSSCAPA) {
681 rc = req_capsule_server_pack(pill);
683 RETURN(err_serious(rc));
684 rc = mdt_renew_capa(info);
685 GOTO(out_shrink, rc);
688 LASSERT(obj != NULL);
689 LASSERT(lu_object_assert_exists(&obj->mot_obj.mo_lu));
691 mode = lu_object_attr(&obj->mot_obj.mo_lu);
692 if (S_ISLNK(mode) && (reqbody->valid & OBD_MD_LINKNAME) &&
693 (reqbody->eadatasize > info->mti_mdt->mdt_max_mdsize))
694 md_size = reqbody->eadatasize;
696 md_size = info->mti_mdt->mdt_max_mdsize;
698 req_capsule_set_size(pill, &RMF_MDT_MD, RCL_SERVER, md_size);
700 rc = req_capsule_server_pack(pill);
701 if (unlikely(rc != 0))
702 RETURN(err_serious(rc));
704 repbody = req_capsule_server_get(pill, &RMF_MDT_BODY);
705 LASSERT(repbody != NULL);
706 repbody->eadatasize = 0;
707 repbody->aclsize = 0;
709 if (reqbody->valid & OBD_MD_FLRMTPERM)
710 rc = mdt_init_ucred(info, reqbody);
712 rc = mdt_check_ucred(info);
714 GOTO(out_shrink, rc);
716 info->mti_spec.sp_ck_split = !!(reqbody->valid & OBD_MD_FLCKSPLIT);
717 info->mti_cross_ref = !!(reqbody->valid & OBD_MD_FLCROSSREF);
720 * Don't check capability at all, because rename might getattr for
721 * remote obj, and at that time no capability is available.
723 mdt_set_capainfo(info, 1, &reqbody->fid1, BYPASS_CAPA);
724 rc = mdt_getattr_internal(info, obj, 0);
725 if (reqbody->valid & OBD_MD_FLRMTPERM)
726 mdt_exit_ucred(info);
729 mdt_shrink_reply(info);
733 static int mdt_is_subdir(struct mdt_thread_info *info)
735 struct mdt_object *o = info->mti_object;
736 struct req_capsule *pill = info->mti_pill;
737 const struct mdt_body *body = info->mti_body;
738 struct mdt_body *repbody;
744 repbody = req_capsule_server_get(pill, &RMF_MDT_BODY);
747 * We save last checked parent fid to @repbody->fid1 for remote
750 LASSERT(fid_is_sane(&body->fid2));
751 LASSERT(mdt_object_exists(o) > 0);
752 rc = mdo_is_subdir(info->mti_env, mdt_object_child(o),
753 &body->fid2, &repbody->fid1);
754 if (rc == 0 || rc == -EREMOTE)
755 repbody->valid |= OBD_MD_FLID;
760 static int mdt_raw_lookup(struct mdt_thread_info *info,
761 struct mdt_object *parent,
762 const struct lu_name *lname,
763 struct ldlm_reply *ldlm_rep)
765 struct md_object *next = mdt_object_child(info->mti_object);
766 const struct mdt_body *reqbody = info->mti_body;
767 struct lu_fid *child_fid = &info->mti_tmp_fid1;
768 struct mdt_body *repbody;
772 if (reqbody->valid != OBD_MD_FLID)
775 LASSERT(!info->mti_cross_ref);
777 /* Only got the fid of this obj by name */
778 rc = mdo_lookup(info->mti_env, next, lname, child_fid,
781 /* XXX is raw_lookup possible as intent operation? */
784 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_NEG);
787 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS);
789 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
792 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
793 repbody->fid1 = *child_fid;
794 repbody->valid = OBD_MD_FLID;
800 * UPDATE lock should be taken against parent, and be release before exit;
801 * child_bits lock should be taken against child, and be returned back:
802 * (1)normal request should release the child lock;
803 * (2)intent request will grant the lock to client.
805 static int mdt_getattr_name_lock(struct mdt_thread_info *info,
806 struct mdt_lock_handle *lhc,
808 struct ldlm_reply *ldlm_rep)
810 struct ptlrpc_request *req = mdt_info_req(info);
811 struct mdt_body *reqbody = NULL;
812 struct mdt_object *parent = info->mti_object;
813 struct mdt_object *child;
814 struct md_object *next = mdt_object_child(parent);
815 struct lu_fid *child_fid = &info->mti_tmp_fid1;
816 struct lu_name *lname = NULL;
817 const char *name = NULL;
819 struct mdt_lock_handle *lhp;
820 struct ldlm_lock *lock;
821 struct ldlm_res_id *res_id;
828 is_resent = lustre_handle_is_used(&lhc->mlh_reg_lh);
829 LASSERT(ergo(is_resent,
830 lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT));
832 LASSERT(parent != NULL);
833 name = req_capsule_client_get(info->mti_pill, &RMF_NAME);
835 RETURN(err_serious(-EFAULT));
837 namelen = req_capsule_get_size(info->mti_pill, &RMF_NAME,
839 if (!info->mti_cross_ref) {
841 * XXX: Check for "namelen == 0" is for getattr by fid
842 * (OBD_CONNECT_ATTRFID), otherwise do not allow empty name,
843 * that is the name must contain at least one character and
844 * the terminating '\0'
847 reqbody = req_capsule_client_get(info->mti_pill,
849 LASSERT(fid_is_sane(&reqbody->fid2));
852 CDEBUG(D_INODE, "getattr with lock for "DFID"/"DFID", "
854 PFID(mdt_object_fid(parent)), PFID(&reqbody->fid2),
857 lname = mdt_name(info->mti_env, (char *)name, namelen);
858 CDEBUG(D_INODE, "getattr with lock for "DFID"/%s, "
859 "ldlm_rep = %p\n", PFID(mdt_object_fid(parent)),
863 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_EXECD);
865 rc = mdt_object_exists(parent);
866 if (unlikely(rc == 0)) {
867 LU_OBJECT_DEBUG(D_WARNING, info->mti_env,
868 &parent->mot_obj.mo_lu,
869 "Parent doesn't exist!\n");
871 } else if (!info->mti_cross_ref) {
872 LASSERTF(rc > 0, "Parent "DFID" is on remote server\n",
873 PFID(mdt_object_fid(parent)));
876 rc = mdt_raw_lookup(info, parent, lname, ldlm_rep);
884 if (info->mti_cross_ref) {
885 /* Only getattr on the child. Parent is on another node. */
886 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS);
888 CDEBUG(D_INODE, "partial getattr_name child_fid = "DFID", "
889 "ldlm_rep=%p\n", PFID(mdt_object_fid(child)), ldlm_rep);
892 /* Do not take lock for resent case. */
893 lock = ldlm_handle2lock(&lhc->mlh_reg_lh);
894 LASSERTF(lock != NULL, "Invalid lock handle "LPX64"\n",
895 lhc->mlh_reg_lh.cookie);
896 LASSERT(fid_res_name_eq(mdt_object_fid(child),
897 &lock->l_resource->lr_name));
901 mdt_lock_handle_init(lhc);
902 mdt_lock_reg_init(lhc, LCK_PR);
905 * Object's name is on another MDS, no lookup lock is
906 * needed here but update is.
908 child_bits &= ~MDS_INODELOCK_LOOKUP;
909 child_bits |= MDS_INODELOCK_UPDATE;
911 rc = mdt_object_lock(info, child, lhc, child_bits,
915 /* Finally, we can get attr for child. */
916 mdt_set_capainfo(info, 0, mdt_object_fid(child),
918 rc = mdt_getattr_internal(info, child, 0);
919 if (unlikely(rc != 0))
920 mdt_object_unlock(info, child, lhc, 1);
925 /* step 1: lock parent */
926 lhp = &info->mti_lh[MDT_LH_PARENT];
927 mdt_lock_pdo_init(lhp, LCK_PR, name, namelen);
928 rc = mdt_object_lock(info, parent, lhp, MDS_INODELOCK_UPDATE,
931 if (unlikely(rc != 0))
935 /* step 2: lookup child's fid by name */
936 rc = mdo_lookup(info->mti_env, next, lname, child_fid,
941 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_NEG);
942 GOTO(out_parent, rc);
944 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS);
946 *child_fid = reqbody->fid2;
947 mdt_set_disposition(info, ldlm_rep, DISP_LOOKUP_POS);
951 *step 3: find the child object by fid & lock it.
952 * regardless if it is local or remote.
954 child = mdt_object_find(info->mti_env, info->mti_mdt, child_fid);
956 if (unlikely(IS_ERR(child)))
957 GOTO(out_parent, rc = PTR_ERR(child));
959 /* Do not take lock for resent case. */
960 lock = ldlm_handle2lock(&lhc->mlh_reg_lh);
961 LASSERTF(lock != NULL, "Invalid lock handle "LPX64"\n",
962 lhc->mlh_reg_lh.cookie);
964 res_id = &lock->l_resource->lr_name;
965 if (!fid_res_name_eq(mdt_object_fid(child),
966 &lock->l_resource->lr_name)) {
967 LASSERTF(fid_res_name_eq(mdt_object_fid(parent),
968 &lock->l_resource->lr_name),
969 "Lock res_id: %lu/%lu/%lu, Fid: "DFID".\n",
970 (unsigned long)res_id->name[0],
971 (unsigned long)res_id->name[1],
972 (unsigned long)res_id->name[2],
973 PFID(mdt_object_fid(parent)));
974 CWARN("Although resent, but still not get child lock"
975 "parent:"DFID" child:"DFID"\n",
976 PFID(mdt_object_fid(parent)),
977 PFID(mdt_object_fid(child)));
978 lustre_msg_clear_flags(req->rq_reqmsg, MSG_RESENT);
987 ma = &info->mti_attr;
989 OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_RESEND, obd_timeout*2);
990 mdt_lock_handle_init(lhc);
991 mdt_lock_reg_init(lhc, LCK_PR);
993 if (mdt_object_exists(child) == 0) {
994 LU_OBJECT_DEBUG(D_WARNING, info->mti_env,
995 &child->mot_obj.mo_lu,
996 "Object doesn't exist!\n");
997 GOTO(out_child, rc = -ESTALE);
1001 ma->ma_need = MA_INODE;
1002 rc = mo_attr_get(info->mti_env, next, ma);
1003 if (unlikely(rc != 0))
1004 GOTO(out_child, rc);
1006 /* If the file has not been changed for some time, we return
1007 * not only a LOOKUP lock, but also an UPDATE lock and this
1008 * might save us RPC on later STAT. For directories, it also
1009 * let negative dentry starts working for this dir. */
1010 if (ma->ma_valid & MA_INODE &&
1011 ma->ma_attr.la_valid & LA_CTIME &&
1012 info->mti_mdt->mdt_namespace->ns_ctime_age_limit +
1013 ma->ma_attr.la_ctime < cfs_time_current_sec())
1014 child_bits |= MDS_INODELOCK_UPDATE;
1016 rc = mdt_object_lock(info, child, lhc, child_bits,
1019 if (unlikely(rc != 0))
1020 GOTO(out_child, rc);
1023 lock = ldlm_handle2lock(&lhc->mlh_reg_lh);
1024 /* Get MA_SOM attributes if update lock is given. */
1026 lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_UPDATE &&
1027 S_ISREG(lu_object_attr(&mdt_object_child(child)->mo_lu)))
1030 /* finally, we can get attr for child. */
1031 mdt_set_capainfo(info, 1, child_fid, BYPASS_CAPA);
1032 rc = mdt_getattr_internal(info, child, ma_need);
1033 if (unlikely(rc != 0)) {
1034 mdt_object_unlock(info, child, lhc, 1);
1036 /* Debugging code. */
1037 res_id = &lock->l_resource->lr_name;
1038 LDLM_DEBUG(lock, "Returning lock to client");
1039 LASSERTF(fid_res_name_eq(mdt_object_fid(child),
1040 &lock->l_resource->lr_name),
1041 "Lock res_id: %lu/%lu/%lu, Fid: "DFID".\n",
1042 (unsigned long)res_id->name[0],
1043 (unsigned long)res_id->name[1],
1044 (unsigned long)res_id->name[2],
1045 PFID(mdt_object_fid(child)));
1046 mdt_pack_size2body(info, child);
1049 LDLM_LOCK_PUT(lock);
1053 mdt_object_put(info->mti_env, child);
1055 mdt_object_unlock(info, parent, lhp, 1);
1059 /* normal handler: should release the child lock */
1060 static int mdt_getattr_name(struct mdt_thread_info *info)
1062 struct mdt_lock_handle *lhc = &info->mti_lh[MDT_LH_CHILD];
1063 struct mdt_body *reqbody;
1064 struct mdt_body *repbody;
1068 reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
1069 LASSERT(reqbody != NULL);
1070 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
1071 LASSERT(repbody != NULL);
1073 info->mti_spec.sp_ck_split = !!(reqbody->valid & OBD_MD_FLCKSPLIT);
1074 info->mti_cross_ref = !!(reqbody->valid & OBD_MD_FLCROSSREF);
1075 repbody->eadatasize = 0;
1076 repbody->aclsize = 0;
1078 rc = mdt_init_ucred(info, reqbody);
1080 GOTO(out_shrink, rc);
1082 rc = mdt_getattr_name_lock(info, lhc, MDS_INODELOCK_UPDATE, NULL);
1083 if (lustre_handle_is_used(&lhc->mlh_reg_lh)) {
1084 ldlm_lock_decref(&lhc->mlh_reg_lh, lhc->mlh_reg_mode);
1085 lhc->mlh_reg_lh.cookie = 0;
1087 mdt_exit_ucred(info);
1090 mdt_shrink_reply(info);
1094 static const struct lu_device_operations mdt_lu_ops;
1096 static int lu_device_is_mdt(struct lu_device *d)
1098 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &mdt_lu_ops);
1101 static int mdt_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
1102 void *karg, void *uarg);
1104 static int mdt_set_info(struct mdt_thread_info *info)
1106 struct ptlrpc_request *req = mdt_info_req(info);
1109 int keylen, vallen, rc = 0;
1112 rc = req_capsule_server_pack(info->mti_pill);
1116 key = req_capsule_client_get(info->mti_pill, &RMF_SETINFO_KEY);
1118 DEBUG_REQ(D_HA, req, "no set_info key");
1122 keylen = req_capsule_get_size(info->mti_pill, &RMF_SETINFO_KEY,
1125 val = req_capsule_client_get(info->mti_pill, &RMF_SETINFO_VAL);
1127 DEBUG_REQ(D_HA, req, "no set_info val");
1131 vallen = req_capsule_get_size(info->mti_pill, &RMF_SETINFO_VAL,
1134 /* Swab any part of val you need to here */
1135 if (KEY_IS(KEY_READ_ONLY)) {
1137 lustre_msg_set_status(req->rq_repmsg, 0);
1139 cfs_spin_lock(&req->rq_export->exp_lock);
1141 req->rq_export->exp_connect_flags |= OBD_CONNECT_RDONLY;
1143 req->rq_export->exp_connect_flags &=~OBD_CONNECT_RDONLY;
1144 cfs_spin_unlock(&req->rq_export->exp_lock);
1146 } else if (KEY_IS(KEY_CHANGELOG_CLEAR)) {
1147 struct changelog_setinfo *cs =
1148 (struct changelog_setinfo *)val;
1149 if (vallen != sizeof(*cs)) {
1150 CERROR("Bad changelog_clear setinfo size %d\n", vallen);
1153 if (ptlrpc_req_need_swab(req)) {
1154 __swab64s(&cs->cs_recno);
1155 __swab32s(&cs->cs_id);
1158 rc = mdt_iocontrol(OBD_IOC_CHANGELOG_CLEAR, info->mti_exp,
1160 lustre_msg_set_status(req->rq_repmsg, rc);
1168 static int mdt_connect(struct mdt_thread_info *info)
1171 struct ptlrpc_request *req;
1173 req = mdt_info_req(info);
1174 rc = target_handle_connect(req);
1176 LASSERT(req->rq_export != NULL);
1177 info->mti_mdt = mdt_dev(req->rq_export->exp_obd->obd_lu_dev);
1178 rc = mdt_init_sec_level(info);
1180 rc = mdt_init_idmap(info);
1182 obd_disconnect(class_export_get(req->rq_export));
1184 rc = err_serious(rc);
1189 static int mdt_disconnect(struct mdt_thread_info *info)
1194 rc = target_handle_disconnect(mdt_info_req(info));
1196 rc = err_serious(rc);
1200 static int mdt_sendpage(struct mdt_thread_info *info,
1201 struct lu_rdpg *rdpg)
1203 struct ptlrpc_request *req = mdt_info_req(info);
1204 struct obd_export *exp = req->rq_export;
1205 struct ptlrpc_bulk_desc *desc;
1206 struct l_wait_info *lwi = &info->mti_u.rdpg.mti_wait_info;
1214 desc = ptlrpc_prep_bulk_exp(req, rdpg->rp_npages, BULK_PUT_SOURCE,
1219 for (i = 0, tmpcount = rdpg->rp_count;
1220 i < rdpg->rp_npages; i++, tmpcount -= tmpsize) {
1221 tmpsize = min_t(int, tmpcount, CFS_PAGE_SIZE);
1222 ptlrpc_prep_bulk_page(desc, rdpg->rp_pages[i], 0, tmpsize);
1225 LASSERT(desc->bd_nob == rdpg->rp_count);
1226 rc = sptlrpc_svc_wrap_bulk(req, desc);
1228 GOTO(free_desc, rc);
1230 rc = ptlrpc_start_bulk_transfer(desc);
1232 GOTO(free_desc, rc);
1234 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_SENDPAGE))
1235 GOTO(abort_bulk, rc = 0);
1237 timeout = (int) req->rq_deadline - cfs_time_current_sec();
1239 CERROR("Req deadline already passed %lu (now: %lu)\n",
1240 req->rq_deadline, cfs_time_current_sec());
1241 *lwi = LWI_TIMEOUT_INTERVAL(cfs_time_seconds(max(timeout, 1)),
1242 cfs_time_seconds(1), NULL, NULL);
1243 rc = l_wait_event(desc->bd_waitq, !ptlrpc_server_bulk_active(desc) ||
1244 exp->exp_failed || exp->exp_abort_active_req, lwi);
1245 LASSERT (rc == 0 || rc == -ETIMEDOUT);
1248 if (desc->bd_success &&
1249 desc->bd_nob_transferred == rdpg->rp_count)
1250 GOTO(free_desc, rc);
1253 if (exp->exp_abort_active_req || exp->exp_failed)
1254 GOTO(abort_bulk, rc);
1257 DEBUG_REQ(D_ERROR, req, "bulk failed: %s %d(%d), evicting %s@%s",
1258 (rc == -ETIMEDOUT) ? "timeout" : "network error",
1259 desc->bd_nob_transferred, rdpg->rp_count,
1260 exp->exp_client_uuid.uuid,
1261 exp->exp_connection->c_remote_uuid.uuid);
1263 class_fail_export(exp);
1267 ptlrpc_abort_bulk(desc);
1269 ptlrpc_free_bulk(desc);
1273 #ifdef HAVE_SPLIT_SUPPORT
1275 * Retrieve dir entry from the page and insert it to the slave object, actually,
1276 * this should be in osd layer, but since it will not in the final product, so
1277 * just do it here and do not define more moo api anymore for this.
1279 static int mdt_write_dir_page(struct mdt_thread_info *info, struct page *page,
1282 struct mdt_object *object = info->mti_object;
1283 struct lu_fid *lf = &info->mti_tmp_fid2;
1284 struct md_attr *ma = &info->mti_attr;
1285 struct lu_dirpage *dp;
1286 struct lu_dirent *ent;
1287 int rc = 0, offset = 0;
1290 /* Make sure we have at least one entry. */
1295 * Disable trans for this name insert, since it will include many trans
1298 info->mti_no_need_trans = 1;
1300 * When write_dir_page, no need update parent's ctime,
1301 * and no permission check for name_insert.
1303 ma->ma_attr.la_ctime = 0;
1304 ma->ma_attr.la_valid = LA_MODE;
1305 ma->ma_valid = MA_INODE;
1308 dp = page_address(page);
1309 offset = (int)((__u32)lu_dirent_start(dp) - (__u32)dp);
1311 for (ent = lu_dirent_start(dp); ent != NULL;
1312 ent = lu_dirent_next(ent)) {
1313 struct lu_name *lname;
1316 if (le16_to_cpu(ent->lde_namelen) == 0)
1319 fid_le_to_cpu(lf, &ent->lde_fid);
1320 if (le64_to_cpu(ent->lde_hash) & MAX_HASH_HIGHEST_BIT)
1321 ma->ma_attr.la_mode = S_IFDIR;
1323 ma->ma_attr.la_mode = 0;
1324 OBD_ALLOC(name, le16_to_cpu(ent->lde_namelen) + 1);
1326 GOTO(out, rc = -ENOMEM);
1328 memcpy(name, ent->lde_name, le16_to_cpu(ent->lde_namelen));
1329 lname = mdt_name(info->mti_env, name,
1330 le16_to_cpu(ent->lde_namelen));
1331 ma->ma_attr_flags |= (MDS_PERM_BYPASS | MDS_QUOTA_IGNORE);
1332 rc = mdo_name_insert(info->mti_env,
1333 md_object_next(&object->mot_obj),
1335 OBD_FREE(name, le16_to_cpu(ent->lde_namelen) + 1);
1337 CERROR("Can't insert %*.*s, rc %d\n",
1338 le16_to_cpu(ent->lde_namelen),
1339 le16_to_cpu(ent->lde_namelen),
1344 offset += lu_dirent_size(ent);
1354 static int mdt_bulk_timeout(void *data)
1358 CERROR("mdt bulk transfer timeout \n");
1363 static int mdt_writepage(struct mdt_thread_info *info)
1365 struct ptlrpc_request *req = mdt_info_req(info);
1366 struct mdt_body *reqbody;
1367 struct l_wait_info *lwi;
1368 struct ptlrpc_bulk_desc *desc;
1374 reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
1375 if (reqbody == NULL)
1376 RETURN(err_serious(-EFAULT));
1378 desc = ptlrpc_prep_bulk_exp(req, 1, BULK_GET_SINK, MDS_BULK_PORTAL);
1380 RETURN(err_serious(-ENOMEM));
1382 /* allocate the page for the desc */
1383 page = cfs_alloc_page(CFS_ALLOC_STD);
1385 GOTO(desc_cleanup, rc = -ENOMEM);
1387 CDEBUG(D_INFO, "Received page offset %d size %d \n",
1388 (int)reqbody->size, (int)reqbody->nlink);
1390 ptlrpc_prep_bulk_page(desc, page, (int)reqbody->size,
1391 (int)reqbody->nlink);
1393 rc = sptlrpc_svc_prep_bulk(req, desc);
1395 GOTO(cleanup_page, rc);
1397 * Check if client was evicted while we were doing i/o before touching
1402 GOTO(cleanup_page, rc = -ENOMEM);
1404 if (desc->bd_export->exp_failed)
1407 rc = ptlrpc_start_bulk_transfer (desc);
1409 *lwi = LWI_TIMEOUT_INTERVAL(obd_timeout * CFS_HZ / 4, CFS_HZ,
1410 mdt_bulk_timeout, desc);
1411 rc = l_wait_event(desc->bd_waitq, !ptlrpc_bulk_active(desc) ||
1412 desc->bd_export->exp_failed, lwi);
1413 LASSERT(rc == 0 || rc == -ETIMEDOUT);
1414 if (rc == -ETIMEDOUT) {
1415 DEBUG_REQ(D_ERROR, req, "timeout on bulk GET");
1416 ptlrpc_abort_bulk(desc);
1417 } else if (desc->bd_export->exp_failed) {
1418 DEBUG_REQ(D_ERROR, req, "Eviction on bulk GET");
1420 ptlrpc_abort_bulk(desc);
1421 } else if (!desc->bd_success ||
1422 desc->bd_nob_transferred != desc->bd_nob) {
1423 DEBUG_REQ(D_ERROR, req, "%s bulk GET %d(%d)",
1425 "truncated" : "network error on",
1426 desc->bd_nob_transferred, desc->bd_nob);
1427 /* XXX should this be a different errno? */
1431 DEBUG_REQ(D_ERROR, req, "ptlrpc_bulk_get failed: rc %d", rc);
1434 GOTO(cleanup_lwi, rc);
1435 rc = mdt_write_dir_page(info, page, reqbody->nlink);
1440 cfs_free_page(page);
1442 ptlrpc_free_bulk(desc);
1447 static int mdt_readpage(struct mdt_thread_info *info)
1449 struct mdt_object *object = info->mti_object;
1450 struct lu_rdpg *rdpg = &info->mti_u.rdpg.mti_rdpg;
1451 struct mdt_body *reqbody;
1452 struct mdt_body *repbody;
1457 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_READPAGE_PACK))
1458 RETURN(err_serious(-ENOMEM));
1460 reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
1461 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
1462 if (reqbody == NULL || repbody == NULL)
1463 RETURN(err_serious(-EFAULT));
1466 * prepare @rdpg before calling lower layers and transfer itself. Here
1467 * reqbody->size contains offset of where to start to read and
1468 * reqbody->nlink contains number bytes to read.
1470 rdpg->rp_hash = reqbody->size;
1471 if (rdpg->rp_hash != reqbody->size) {
1472 CERROR("Invalid hash: "LPX64" != "LPX64"\n",
1473 rdpg->rp_hash, reqbody->size);
1477 rdpg->rp_attrs = reqbody->mode;
1478 rdpg->rp_count = reqbody->nlink;
1479 rdpg->rp_npages = (rdpg->rp_count + CFS_PAGE_SIZE - 1)>>CFS_PAGE_SHIFT;
1480 OBD_ALLOC(rdpg->rp_pages, rdpg->rp_npages * sizeof rdpg->rp_pages[0]);
1481 if (rdpg->rp_pages == NULL)
1484 for (i = 0; i < rdpg->rp_npages; ++i) {
1485 rdpg->rp_pages[i] = cfs_alloc_page(CFS_ALLOC_STD);
1486 if (rdpg->rp_pages[i] == NULL)
1487 GOTO(free_rdpg, rc = -ENOMEM);
1490 /* call lower layers to fill allocated pages with directory data */
1491 rc = mo_readpage(info->mti_env, mdt_object_child(object), rdpg);
1493 GOTO(free_rdpg, rc);
1495 /* send pages to client */
1496 rc = mdt_sendpage(info, rdpg);
1501 for (i = 0; i < rdpg->rp_npages; i++)
1502 if (rdpg->rp_pages[i] != NULL)
1503 cfs_free_page(rdpg->rp_pages[i]);
1504 OBD_FREE(rdpg->rp_pages, rdpg->rp_npages * sizeof rdpg->rp_pages[0]);
1506 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_SENDPAGE))
1512 static int mdt_reint_internal(struct mdt_thread_info *info,
1513 struct mdt_lock_handle *lhc,
1516 struct req_capsule *pill = info->mti_pill;
1517 struct mdt_device *mdt = info->mti_mdt;
1518 struct md_quota *mq = md_quota(info->mti_env);
1519 struct mdt_body *repbody;
1524 if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER))
1525 req_capsule_set_size(pill, &RMF_MDT_MD, RCL_SERVER,
1526 mdt->mdt_max_mdsize);
1527 if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
1528 req_capsule_set_size(pill, &RMF_LOGCOOKIES, RCL_SERVER,
1529 mdt->mdt_max_cookiesize);
1531 rc = req_capsule_server_pack(pill);
1533 CERROR("Can't pack response, rc %d\n", rc);
1534 RETURN(err_serious(rc));
1537 if (req_capsule_has_field(pill, &RMF_MDT_BODY, RCL_SERVER)) {
1538 repbody = req_capsule_server_get(pill, &RMF_MDT_BODY);
1540 repbody->eadatasize = 0;
1541 repbody->aclsize = 0;
1544 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_UNPACK))
1545 GOTO(out_shrink, rc = err_serious(-EFAULT));
1547 rc = mdt_reint_unpack(info, op);
1549 CERROR("Can't unpack reint, rc %d\n", rc);
1550 GOTO(out_shrink, rc = err_serious(rc));
1553 OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_REINT_DELAY, 10);
1555 /* for replay no cookkie / lmm need, because client have this already */
1556 if (info->mti_spec.no_create == 1) {
1557 if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER))
1558 req_capsule_set_size(pill, &RMF_MDT_MD, RCL_SERVER, 0);
1560 if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
1561 req_capsule_set_size(pill, &RMF_LOGCOOKIES, RCL_SERVER,
1565 rc = mdt_init_ucred_reint(info);
1567 GOTO(out_shrink, rc);
1569 rc = mdt_fix_attr_ucred(info, op);
1571 GOTO(out_ucred, rc = err_serious(rc));
1573 if (mdt_check_resent(info, mdt_reconstruct, lhc)) {
1574 rc = lustre_msg_get_status(mdt_info_req(info)->rq_repmsg);
1575 GOTO(out_ucred, rc);
1577 mq->mq_exp = info->mti_exp;
1578 rc = mdt_reint_rec(info, lhc);
1581 mdt_exit_ucred(info);
1583 mdt_shrink_reply(info);
1587 static long mdt_reint_opcode(struct mdt_thread_info *info,
1588 const struct req_format **fmt)
1590 struct mdt_rec_reint *rec;
1593 opc = err_serious(-EFAULT);
1594 rec = req_capsule_client_get(info->mti_pill, &RMF_REC_REINT);
1596 opc = rec->rr_opcode;
1597 DEBUG_REQ(D_INODE, mdt_info_req(info), "reint opt = %ld", opc);
1598 if (opc < REINT_MAX && fmt[opc] != NULL)
1599 req_capsule_extend(info->mti_pill, fmt[opc]);
1601 CERROR("Unsupported opc: %ld\n", opc);
1602 opc = err_serious(opc);
1608 static int mdt_reint(struct mdt_thread_info *info)
1613 static const struct req_format *reint_fmts[REINT_MAX] = {
1614 [REINT_SETATTR] = &RQF_MDS_REINT_SETATTR,
1615 [REINT_CREATE] = &RQF_MDS_REINT_CREATE,
1616 [REINT_LINK] = &RQF_MDS_REINT_LINK,
1617 [REINT_UNLINK] = &RQF_MDS_REINT_UNLINK,
1618 [REINT_RENAME] = &RQF_MDS_REINT_RENAME,
1619 [REINT_OPEN] = &RQF_MDS_REINT_OPEN,
1620 [REINT_SETXATTR] = &RQF_MDS_REINT_SETXATTR
1625 opc = mdt_reint_opcode(info, reint_fmts);
1628 * No lock possible here from client to pass it to reint code
1631 rc = mdt_reint_internal(info, NULL, opc);
1636 info->mti_fail_id = OBD_FAIL_MDS_REINT_NET_REP;
1640 /* this should sync the whole device */
1641 static int mdt_device_sync(const struct lu_env *env, struct mdt_device *mdt)
1643 struct dt_device *dt = mdt->mdt_bottom;
1647 rc = dt->dd_ops->dt_sync(env, dt);
1651 /* this should sync this object */
1652 static int mdt_object_sync(struct mdt_thread_info *info)
1654 struct md_object *next;
1658 if (!mdt_object_exists(info->mti_object)) {
1659 CWARN("Non existing object "DFID"!\n",
1660 PFID(mdt_object_fid(info->mti_object)));
1663 next = mdt_object_child(info->mti_object);
1664 rc = mo_object_sync(info->mti_env, next);
1669 static int mdt_sync(struct mdt_thread_info *info)
1671 struct req_capsule *pill = info->mti_pill;
1672 struct mdt_body *body;
1676 /* The fid may be zero, so we req_capsule_set manually */
1677 req_capsule_set(pill, &RQF_MDS_SYNC);
1679 body = req_capsule_client_get(pill, &RMF_MDT_BODY);
1681 RETURN(err_serious(-EINVAL));
1683 if (OBD_FAIL_CHECK(OBD_FAIL_MDS_SYNC_PACK))
1684 RETURN(err_serious(-ENOMEM));
1686 if (fid_seq(&body->fid1) == 0) {
1687 /* sync the whole device */
1688 rc = req_capsule_server_pack(pill);
1690 rc = mdt_device_sync(info->mti_env, info->mti_mdt);
1692 rc = err_serious(rc);
1694 /* sync an object */
1695 rc = mdt_unpack_req_pack_rep(info, HABEO_CORPUS|HABEO_REFERO);
1697 rc = mdt_object_sync(info);
1699 struct md_object *next;
1700 const struct lu_fid *fid;
1701 struct lu_attr *la = &info->mti_attr.ma_attr;
1703 next = mdt_object_child(info->mti_object);
1704 info->mti_attr.ma_need = MA_INODE;
1705 info->mti_attr.ma_valid = 0;
1706 rc = mo_attr_get(info->mti_env, next,
1709 body = req_capsule_server_get(pill,
1711 fid = mdt_object_fid(info->mti_object);
1712 mdt_pack_attr2body(info, body, la, fid);
1716 rc = err_serious(rc);
1721 #ifdef HAVE_QUOTA_SUPPORT
1722 static int mdt_quotacheck_handle(struct mdt_thread_info *info)
1724 struct obd_quotactl *oqctl;
1725 struct req_capsule *pill = info->mti_pill;
1726 struct obd_export *exp = info->mti_exp;
1727 struct md_quota *mq = md_quota(info->mti_env);
1728 struct md_device *next = info->mti_mdt->mdt_child;
1732 oqctl = req_capsule_client_get(pill, &RMF_OBD_QUOTACTL);
1736 /* remote client has no permission for quotacheck */
1737 if (unlikely(exp_connect_rmtclient(exp)))
1740 rc = req_capsule_server_pack(pill);
1745 rc = next->md_ops->mdo_quota.mqo_check(info->mti_env, next,
1750 static int mdt_quotactl_handle(struct mdt_thread_info *info)
1752 struct obd_quotactl *oqctl, *repoqc;
1753 struct req_capsule *pill = info->mti_pill;
1754 struct obd_export *exp = info->mti_exp;
1755 struct md_quota *mq = md_quota(info->mti_env);
1756 struct md_device *next = info->mti_mdt->mdt_child;
1757 const struct md_quota_operations *mqo = &next->md_ops->mdo_quota;
1761 oqctl = req_capsule_client_get(pill, &RMF_OBD_QUOTACTL);
1766 if (exp_connect_rmtclient(exp)) {
1767 struct ptlrpc_request *req = mdt_info_req(info);
1768 struct mdt_export_data *med = mdt_req2med(req);
1769 struct lustre_idmap_table *idmap = med->med_idmap;
1771 if (unlikely(oqctl->qc_cmd != Q_GETQUOTA &&
1772 oqctl->qc_cmd != Q_GETINFO))
1776 if (oqctl->qc_type == USRQUOTA)
1777 id = lustre_idmap_lookup_uid(NULL, idmap, 0,
1779 else if (oqctl->qc_type == GRPQUOTA)
1780 id = lustre_idmap_lookup_gid(NULL, idmap, 0,
1785 if (id == CFS_IDMAP_NOTFOUND) {
1786 CDEBUG(D_QUOTA, "no mapping for id %u\n",
1792 rc = req_capsule_server_pack(pill);
1796 repoqc = req_capsule_server_get(pill, &RMF_OBD_QUOTACTL);
1797 LASSERT(repoqc != NULL);
1800 switch (oqctl->qc_cmd) {
1802 rc = mqo->mqo_on(info->mti_env, next, oqctl->qc_type);
1805 rc = mqo->mqo_off(info->mti_env, next, oqctl->qc_type);
1808 rc = mqo->mqo_setinfo(info->mti_env, next, oqctl->qc_type, id,
1812 rc = mqo->mqo_getinfo(info->mti_env, next, oqctl->qc_type, id,
1816 rc = mqo->mqo_setquota(info->mti_env, next, oqctl->qc_type, id,
1820 rc = mqo->mqo_getquota(info->mti_env, next, oqctl->qc_type, id,
1824 rc = mqo->mqo_getoinfo(info->mti_env, next, oqctl->qc_type, id,
1828 rc = mqo->mqo_getoquota(info->mti_env, next, oqctl->qc_type, id,
1831 case LUSTRE_Q_INVALIDATE:
1832 rc = mqo->mqo_invalidate(info->mti_env, next, oqctl->qc_type);
1834 case LUSTRE_Q_FINVALIDATE:
1835 rc = mqo->mqo_finvalidate(info->mti_env, next, oqctl->qc_type);
1838 CERROR("unsupported mdt_quotactl command: %d\n",
1850 * OBD PING and other handlers.
1852 static int mdt_obd_ping(struct mdt_thread_info *info)
1857 req_capsule_set(info->mti_pill, &RQF_OBD_PING);
1859 rc = target_handle_ping(mdt_info_req(info));
1861 rc = err_serious(rc);
1865 static int mdt_obd_log_cancel(struct mdt_thread_info *info)
1867 return err_serious(-EOPNOTSUPP);
1870 static int mdt_obd_qc_callback(struct mdt_thread_info *info)
1872 return err_serious(-EOPNOTSUPP);
1880 /** clone llog ctxt from child (mdd)
1881 * This allows remote llog (replicator) access.
1882 * We can either pass all llog RPCs (eg mdt_llog_create) on to child where the
1883 * context was originally set up, or we can handle them directly.
1884 * I choose the latter, but that means I need any llog
1885 * contexts set up by child to be accessable by the mdt. So we clone the
1886 * context into our context list here.
1888 static int mdt_llog_ctxt_clone(const struct lu_env *env, struct mdt_device *mdt,
1891 struct md_device *next = mdt->mdt_child;
1892 struct llog_ctxt *ctxt;
1895 if (!llog_ctxt_null(mdt2obd_dev(mdt), idx))
1898 rc = next->md_ops->mdo_llog_ctxt_get(env, next, idx, (void **)&ctxt);
1899 if (rc || ctxt == NULL) {
1900 CERROR("Can't get mdd ctxt %d\n", rc);
1904 rc = llog_group_set_ctxt(&mdt2obd_dev(mdt)->obd_olg, ctxt, idx);
1906 CERROR("Can't set mdt ctxt %d\n", rc);
1911 static int mdt_llog_ctxt_unclone(const struct lu_env *env,
1912 struct mdt_device *mdt, int idx)
1914 struct llog_ctxt *ctxt;
1916 ctxt = llog_get_context(mdt2obd_dev(mdt), idx);
1919 /* Put once for the get we just did, and once for the clone */
1920 llog_ctxt_put(ctxt);
1921 llog_ctxt_put(ctxt);
1925 static int mdt_llog_create(struct mdt_thread_info *info)
1929 req_capsule_set(info->mti_pill, &RQF_LLOG_ORIGIN_HANDLE_CREATE);
1930 rc = llog_origin_handle_create(mdt_info_req(info));
1931 return (rc < 0 ? err_serious(rc) : rc);
1934 static int mdt_llog_destroy(struct mdt_thread_info *info)
1938 req_capsule_set(info->mti_pill, &RQF_LLOG_ORIGIN_HANDLE_DESTROY);
1939 rc = llog_origin_handle_destroy(mdt_info_req(info));
1940 return (rc < 0 ? err_serious(rc) : rc);
1943 static int mdt_llog_read_header(struct mdt_thread_info *info)
1947 req_capsule_set(info->mti_pill, &RQF_LLOG_ORIGIN_HANDLE_READ_HEADER);
1948 rc = llog_origin_handle_read_header(mdt_info_req(info));
1949 return (rc < 0 ? err_serious(rc) : rc);
1952 static int mdt_llog_next_block(struct mdt_thread_info *info)
1956 req_capsule_set(info->mti_pill, &RQF_LLOG_ORIGIN_HANDLE_NEXT_BLOCK);
1957 rc = llog_origin_handle_next_block(mdt_info_req(info));
1958 return (rc < 0 ? err_serious(rc) : rc);
1961 static int mdt_llog_prev_block(struct mdt_thread_info *info)
1965 req_capsule_set(info->mti_pill, &RQF_LLOG_ORIGIN_HANDLE_PREV_BLOCK);
1966 rc = llog_origin_handle_prev_block(mdt_info_req(info));
1967 return (rc < 0 ? err_serious(rc) : rc);
1974 static struct ldlm_callback_suite cbs = {
1975 .lcs_completion = ldlm_server_completion_ast,
1976 .lcs_blocking = ldlm_server_blocking_ast,
1980 static int mdt_enqueue(struct mdt_thread_info *info)
1982 struct ptlrpc_request *req;
1987 * info->mti_dlm_req already contains swapped and (if necessary)
1988 * converted dlm request.
1990 LASSERT(info->mti_dlm_req != NULL);
1992 req = mdt_info_req(info);
1995 * Lock without inodebits makes no sense and will oops later in
1996 * ldlm. Let's check it now to see if we have wrong lock from client or
1997 * bits get corrupted somewhere in mdt_intent_policy().
1999 req_bits = info->mti_dlm_req->lock_desc.l_policy_data.l_inodebits.bits;
2000 /* This is disabled because we need to support liblustre flock.
2001 * LASSERT(req_bits != 0);
2004 rc = ldlm_handle_enqueue0(info->mti_mdt->mdt_namespace,
2005 req, info->mti_dlm_req, &cbs);
2006 info->mti_fail_id = OBD_FAIL_LDLM_REPLY;
2007 return rc ? err_serious(rc) : req->rq_status;
2010 static int mdt_convert(struct mdt_thread_info *info)
2013 struct ptlrpc_request *req;
2015 LASSERT(info->mti_dlm_req);
2016 req = mdt_info_req(info);
2017 rc = ldlm_handle_convert0(req, info->mti_dlm_req);
2018 return rc ? err_serious(rc) : req->rq_status;
2021 static int mdt_bl_callback(struct mdt_thread_info *info)
2023 CERROR("bl callbacks should not happen on MDS\n");
2025 return err_serious(-EOPNOTSUPP);
2028 static int mdt_cp_callback(struct mdt_thread_info *info)
2030 CERROR("cp callbacks should not happen on MDS\n");
2032 return err_serious(-EOPNOTSUPP);
2036 * sec context handlers
2038 static int mdt_sec_ctx_handle(struct mdt_thread_info *info)
2042 rc = mdt_handle_idmap(info);
2045 struct ptlrpc_request *req = mdt_info_req(info);
2048 opc = lustre_msg_get_opc(req->rq_reqmsg);
2049 if (opc == SEC_CTX_INIT || opc == SEC_CTX_INIT_CONT)
2050 sptlrpc_svc_ctx_invalidate(req);
2053 OBD_FAIL_TIMEOUT(OBD_FAIL_SEC_CTX_HDL_PAUSE, obd_fail_val);
2058 static struct mdt_object *mdt_obj(struct lu_object *o)
2060 LASSERT(lu_device_is_mdt(o->lo_dev));
2061 return container_of0(o, struct mdt_object, mot_obj.mo_lu);
2064 struct mdt_object *mdt_object_find(const struct lu_env *env,
2065 struct mdt_device *d,
2066 const struct lu_fid *f)
2068 struct lu_object *o;
2069 struct mdt_object *m;
2072 CDEBUG(D_INFO, "Find object for "DFID"\n", PFID(f));
2073 o = lu_object_find(env, &d->mdt_md_dev.md_lu_dev, f, NULL);
2074 if (unlikely(IS_ERR(o)))
2075 m = (struct mdt_object *)o;
2082 * Asyncronous commit for mdt device.
2084 * Pass asynchonous commit call down the MDS stack.
2086 * \param env environment
2087 * \param mdt the mdt device
2089 static void mdt_device_commit_async(const struct lu_env *env,
2090 struct mdt_device *mdt)
2092 struct dt_device *dt = mdt->mdt_bottom;
2095 rc = dt->dd_ops->dt_commit_async(env, dt);
2096 if (unlikely(rc != 0))
2097 CWARN("async commit start failed with rc = %d", rc);
2101 * Mark the lock as "synchonous".
2103 * Mark the lock to deffer transaction commit to the unlock time.
2105 * \param lock the lock to mark as "synchonous"
2107 * \see mdt_is_lock_sync
2108 * \see mdt_save_lock
2110 static inline void mdt_set_lock_sync(struct ldlm_lock *lock)
2112 lock->l_ast_data = (void*)1;
2116 * Check whehter the lock "synchonous" or not.
2118 * \param lock the lock to check
2119 * \retval 1 the lock is "synchonous"
2120 * \retval 0 the lock isn't "synchronous"
2122 * \see mdt_set_lock_sync
2123 * \see mdt_save_lock
2125 static inline int mdt_is_lock_sync(struct ldlm_lock *lock)
2127 return lock->l_ast_data != NULL;
2131 * Blocking AST for mdt locks.
2133 * Starts transaction commit if in case of COS lock conflict or
2134 * deffers such a commit to the mdt_save_lock.
2136 * \param lock the lock which blocks a request or cancelling lock
2137 * \param desc unused
2138 * \param data unused
2139 * \param flag indicates whether this cancelling or blocking callback
2141 * \see ldlm_blocking_ast_nocheck
2143 int mdt_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
2144 void *data, int flag)
2146 struct obd_device *obd = lock->l_resource->lr_namespace->ns_obd;
2147 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
2151 if (flag == LDLM_CB_CANCELING)
2153 lock_res_and_lock(lock);
2154 if (lock->l_blocking_ast != mdt_blocking_ast) {
2155 unlock_res_and_lock(lock);
2158 if (mdt_cos_is_enabled(mdt) &&
2159 lock->l_req_mode & (LCK_PW | LCK_EX) &&
2160 lock->l_blocking_lock != NULL &&
2161 lock->l_client_cookie != lock->l_blocking_lock->l_client_cookie) {
2162 mdt_set_lock_sync(lock);
2164 rc = ldlm_blocking_ast_nocheck(lock);
2166 /* There is no lock conflict if l_blocking_lock == NULL,
2167 * it indicates a blocking ast sent from ldlm_lock_decref_internal
2168 * when the last reference to a local lock was released */
2169 if (lock->l_req_mode == LCK_COS && lock->l_blocking_lock != NULL) {
2172 rc = lu_env_init(&env, LCT_MD_THREAD);
2173 if (unlikely(rc != 0))
2174 CWARN("lu_env initialization failed with rc = %d,"
2175 "cannot start asynchronous commit\n", rc);
2177 mdt_device_commit_async(&env, mdt);
2183 int mdt_object_lock(struct mdt_thread_info *info, struct mdt_object *o,
2184 struct mdt_lock_handle *lh, __u64 ibits, int locality)
2186 struct ldlm_namespace *ns = info->mti_mdt->mdt_namespace;
2187 ldlm_policy_data_t *policy = &info->mti_policy;
2188 struct ldlm_res_id *res_id = &info->mti_res_id;
2192 LASSERT(!lustre_handle_is_used(&lh->mlh_reg_lh));
2193 LASSERT(!lustre_handle_is_used(&lh->mlh_pdo_lh));
2194 LASSERT(lh->mlh_reg_mode != LCK_MINMODE);
2195 LASSERT(lh->mlh_type != MDT_NUL_LOCK);
2197 if (mdt_object_exists(o) < 0) {
2198 if (locality == MDT_CROSS_LOCK) {
2199 /* cross-ref object fix */
2200 ibits &= ~MDS_INODELOCK_UPDATE;
2201 ibits |= MDS_INODELOCK_LOOKUP;
2203 LASSERT(!(ibits & MDS_INODELOCK_UPDATE));
2204 LASSERT(ibits & MDS_INODELOCK_LOOKUP);
2206 /* No PDO lock on remote object */
2207 LASSERT(lh->mlh_type != MDT_PDO_LOCK);
2210 if (lh->mlh_type == MDT_PDO_LOCK) {
2211 /* check for exists after object is locked */
2212 if (mdt_object_exists(o) == 0) {
2213 /* Non-existent object shouldn't have PDO lock */
2216 /* Non-dir object shouldn't have PDO lock */
2217 LASSERT(S_ISDIR(lu_object_attr(&o->mot_obj.mo_lu)));
2221 memset(policy, 0, sizeof(*policy));
2222 fid_build_reg_res_name(mdt_object_fid(o), res_id);
2225 * Take PDO lock on whole directory and build correct @res_id for lock
2226 * on part of directory.
2228 if (lh->mlh_pdo_hash != 0) {
2229 LASSERT(lh->mlh_type == MDT_PDO_LOCK);
2230 mdt_lock_pdo_mode(info, o, lh);
2231 if (lh->mlh_pdo_mode != LCK_NL) {
2233 * Do not use LDLM_FL_LOCAL_ONLY for parallel lock, it
2234 * is never going to be sent to client and we do not
2235 * want it slowed down due to possible cancels.
2237 policy->l_inodebits.bits = MDS_INODELOCK_UPDATE;
2238 rc = mdt_fid_lock(ns, &lh->mlh_pdo_lh, lh->mlh_pdo_mode,
2239 policy, res_id, LDLM_FL_ATOMIC_CB,
2240 &info->mti_exp->exp_handle.h_cookie);
2246 * Finish res_id initializing by name hash marking part of
2247 * directory which is taking modification.
2249 res_id->name[LUSTRE_RES_ID_HSH_OFF] = lh->mlh_pdo_hash;
2252 policy->l_inodebits.bits = ibits;
2255 * Use LDLM_FL_LOCAL_ONLY for this lock. We do not know yet if it is
2256 * going to be sent to client. If it is - mdt_intent_policy() path will
2257 * fix it up and turn FL_LOCAL flag off.
2259 rc = mdt_fid_lock(ns, &lh->mlh_reg_lh, lh->mlh_reg_mode, policy,
2260 res_id, LDLM_FL_LOCAL_ONLY | LDLM_FL_ATOMIC_CB,
2261 &info->mti_exp->exp_handle.h_cookie);
2263 mdt_object_unlock(info, o, lh, 1);
2264 else if (unlikely(OBD_FAIL_PRECHECK(OBD_FAIL_MDS_PDO_LOCK)) &&
2265 lh->mlh_pdo_hash != 0 &&
2266 (lh->mlh_reg_mode == LCK_PW || lh->mlh_reg_mode == LCK_EX)) {
2267 OBD_FAIL_TIMEOUT(OBD_FAIL_MDS_PDO_LOCK, 10);
2274 * Save a lock within request object.
2276 * Keep the lock referenced until whether client ACK or transaction
2277 * commit happens or release the lock immediately depending on input
2278 * parameters. If COS is ON, a write lock is converted to COS lock
2281 * \param info thead info object
2282 * \param h lock handle
2283 * \param mode lock mode
2284 * \param decref force immediate lock releasing
2287 void mdt_save_lock(struct mdt_thread_info *info, struct lustre_handle *h,
2288 ldlm_mode_t mode, int decref)
2292 if (lustre_handle_is_used(h)) {
2293 if (decref || !info->mti_has_trans ||
2294 !(mode & (LCK_PW | LCK_EX))){
2295 mdt_fid_unlock(h, mode);
2297 struct mdt_device *mdt = info->mti_mdt;
2298 struct ldlm_lock *lock = ldlm_handle2lock(h);
2299 struct ptlrpc_request *req = mdt_info_req(info);
2302 LASSERTF(lock != NULL, "no lock for cookie "LPX64"\n",
2304 CDEBUG(D_HA, "request = %p reply state = %p"
2305 " transno = "LPD64"\n",
2306 req, req->rq_reply_state, req->rq_transno);
2307 if (mdt_cos_is_enabled(mdt)) {
2309 ldlm_lock_downgrade(lock, LCK_COS);
2312 ptlrpc_save_lock(req, h, mode, no_ack);
2313 if (mdt_is_lock_sync(lock)) {
2314 CDEBUG(D_HA, "found sync-lock,"
2315 " async commit started\n");
2316 mdt_device_commit_async(info->mti_env,
2319 LDLM_LOCK_PUT(lock);
2328 * Unlock mdt object.
2330 * Immeditely release the regular lock and the PDO lock or save the
2331 * lock in reqeuest and keep them referenced until client ACK or
2332 * transaction commit.
2334 * \param info thread info object
2335 * \param o mdt object
2336 * \param lh mdt lock handle referencing regular and PDO locks
2337 * \param decref force immediate lock releasing
2339 void mdt_object_unlock(struct mdt_thread_info *info, struct mdt_object *o,
2340 struct mdt_lock_handle *lh, int decref)
2344 mdt_save_lock(info, &lh->mlh_pdo_lh, lh->mlh_pdo_mode, decref);
2345 mdt_save_lock(info, &lh->mlh_reg_lh, lh->mlh_reg_mode, decref);
2350 struct mdt_object *mdt_object_find_lock(struct mdt_thread_info *info,
2351 const struct lu_fid *f,
2352 struct mdt_lock_handle *lh,
2355 struct mdt_object *o;
2357 o = mdt_object_find(info->mti_env, info->mti_mdt, f);
2361 rc = mdt_object_lock(info, o, lh, ibits,
2364 mdt_object_put(info->mti_env, o);
2371 void mdt_object_unlock_put(struct mdt_thread_info * info,
2372 struct mdt_object * o,
2373 struct mdt_lock_handle *lh,
2376 mdt_object_unlock(info, o, lh, decref);
2377 mdt_object_put(info->mti_env, o);
2380 static struct mdt_handler *mdt_handler_find(__u32 opc,
2381 struct mdt_opc_slice *supported)
2383 struct mdt_opc_slice *s;
2384 struct mdt_handler *h;
2387 for (s = supported; s->mos_hs != NULL; s++) {
2388 if (s->mos_opc_start <= opc && opc < s->mos_opc_end) {
2389 h = s->mos_hs + (opc - s->mos_opc_start);
2390 if (likely(h->mh_opc != 0))
2391 LASSERTF(h->mh_opc == opc,
2392 "opcode mismatch %d != %d\n",
2395 h = NULL; /* unsupported opc */
2402 static int mdt_lock_resname_compat(struct mdt_device *m,
2403 struct ldlm_request *req)
2405 /* XXX something... later. */
2409 static int mdt_lock_reply_compat(struct mdt_device *m, struct ldlm_reply *rep)
2411 /* XXX something... later. */
2416 * Generic code handling requests that have struct mdt_body passed in:
2418 * - extract mdt_body from request and save it in @info, if present;
2420 * - create lu_object, corresponding to the fid in mdt_body, and save it in
2423 * - if HABEO_CORPUS flag is set for this request type check whether object
2424 * actually exists on storage (lu_object_exists()).
2427 static int mdt_body_unpack(struct mdt_thread_info *info, __u32 flags)
2429 const struct mdt_body *body;
2430 struct mdt_object *obj;
2431 const struct lu_env *env;
2432 struct req_capsule *pill;
2436 env = info->mti_env;
2437 pill = info->mti_pill;
2439 body = info->mti_body = req_capsule_client_get(pill, &RMF_MDT_BODY);
2443 if (!(body->valid & OBD_MD_FLID))
2446 if (!fid_is_sane(&body->fid1)) {
2447 CERROR("Invalid fid: "DFID"\n", PFID(&body->fid1));
2452 * Do not get size or any capa fields before we check that request
2453 * contains capa actually. There are some requests which do not, for
2454 * instance MDS_IS_SUBDIR.
2456 if (req_capsule_has_field(pill, &RMF_CAPA1, RCL_CLIENT) &&
2457 req_capsule_get_size(pill, &RMF_CAPA1, RCL_CLIENT))
2458 mdt_set_capainfo(info, 0, &body->fid1,
2459 req_capsule_client_get(pill, &RMF_CAPA1));
2461 obj = mdt_object_find(env, info->mti_mdt, &body->fid1);
2463 if ((flags & HABEO_CORPUS) &&
2464 !mdt_object_exists(obj)) {
2465 mdt_object_put(env, obj);
2466 /* for capability renew ENOENT will be handled in
2468 if (body->valid & OBD_MD_FLOSSCAPA)
2473 info->mti_object = obj;
2482 static int mdt_unpack_req_pack_rep(struct mdt_thread_info *info, __u32 flags)
2484 struct req_capsule *pill = info->mti_pill;
2488 if (req_capsule_has_field(pill, &RMF_MDT_BODY, RCL_CLIENT))
2489 rc = mdt_body_unpack(info, flags);
2493 if (rc == 0 && (flags & HABEO_REFERO)) {
2494 struct mdt_device *mdt = info->mti_mdt;
2498 if (req_capsule_has_field(pill, &RMF_MDT_MD, RCL_SERVER))
2499 req_capsule_set_size(pill, &RMF_MDT_MD, RCL_SERVER,
2500 mdt->mdt_max_mdsize);
2501 if (req_capsule_has_field(pill, &RMF_LOGCOOKIES, RCL_SERVER))
2502 req_capsule_set_size(pill, &RMF_LOGCOOKIES, RCL_SERVER,
2503 mdt->mdt_max_cookiesize);
2505 rc = req_capsule_server_pack(pill);
2510 static int mdt_init_capa_ctxt(const struct lu_env *env, struct mdt_device *m)
2512 struct md_device *next = m->mdt_child;
2514 return next->md_ops->mdo_init_capa_ctxt(env, next,
2515 m->mdt_opts.mo_mds_capa,
2516 m->mdt_capa_timeout,
2522 * Invoke handler for this request opc. Also do necessary preprocessing
2523 * (according to handler ->mh_flags), and post-processing (setting of
2524 * ->last_{xid,committed}).
2526 static int mdt_req_handle(struct mdt_thread_info *info,
2527 struct mdt_handler *h, struct ptlrpc_request *req)
2529 int rc, serious = 0;
2534 LASSERT(h->mh_act != NULL);
2535 LASSERT(h->mh_opc == lustre_msg_get_opc(req->rq_reqmsg));
2536 LASSERT(current->journal_info == NULL);
2539 * Checking for various OBD_FAIL_$PREF_$OPC_NET codes. _Do_ not try
2540 * to put same checks into handlers like mdt_close(), mdt_reint(),
2541 * etc., without talking to mdt authors first. Checking same thing
2542 * there again is useless and returning 0 error without packing reply
2543 * is buggy! Handlers either pack reply or return error.
2545 * We return 0 here and do not send any reply in order to emulate
2546 * network failure. Do not send any reply in case any of NET related
2547 * fail_id has occured.
2549 if (OBD_FAIL_CHECK_ORSET(h->mh_fail_id, OBD_FAIL_ONCE))
2553 flags = h->mh_flags;
2554 LASSERT(ergo(flags & (HABEO_CORPUS|HABEO_REFERO), h->mh_fmt != NULL));
2556 if (h->mh_fmt != NULL) {
2557 req_capsule_set(info->mti_pill, h->mh_fmt);
2558 rc = mdt_unpack_req_pack_rep(info, flags);
2561 if (rc == 0 && flags & MUTABOR &&
2562 req->rq_export->exp_connect_flags & OBD_CONNECT_RDONLY)
2563 /* should it be rq_status? */
2566 if (rc == 0 && flags & HABEO_CLAVIS) {
2567 struct ldlm_request *dlm_req;
2569 LASSERT(h->mh_fmt != NULL);
2571 dlm_req = req_capsule_client_get(info->mti_pill, &RMF_DLM_REQ);
2572 if (dlm_req != NULL) {
2573 if (info->mti_mdt->mdt_opts.mo_compat_resname)
2574 rc = mdt_lock_resname_compat(info->mti_mdt,
2576 info->mti_dlm_req = dlm_req;
2582 /* capability setting changed via /proc, needs reinitialize ctxt */
2583 if (info->mti_mdt && info->mti_mdt->mdt_capa_conf) {
2584 mdt_init_capa_ctxt(info->mti_env, info->mti_mdt);
2585 info->mti_mdt->mdt_capa_conf = 0;
2588 if (likely(rc == 0)) {
2590 * Process request, there can be two types of rc:
2591 * 1) errors with msg unpack/pack, other failures outside the
2592 * operation itself. This is counted as serious errors;
2593 * 2) errors during fs operation, should be placed in rq_status
2596 rc = h->mh_act(info);
2598 !req->rq_no_reply && req->rq_reply_state == NULL) {
2599 DEBUG_REQ(D_ERROR, req, "MDT \"handler\" %s did not "
2600 "pack reply and returned 0 error\n",
2604 serious = is_serious(rc);
2605 rc = clear_serious(rc);
2609 req->rq_status = rc;
2612 * ELDLM_* codes which > 0 should be in rq_status only as well as
2613 * all non-serious errors.
2615 if (rc > 0 || !serious)
2618 LASSERT(current->journal_info == NULL);
2620 if (rc == 0 && (flags & HABEO_CLAVIS) &&
2621 info->mti_mdt->mdt_opts.mo_compat_resname) {
2622 struct ldlm_reply *dlmrep;
2624 dlmrep = req_capsule_server_get(info->mti_pill, &RMF_DLM_REP);
2626 rc = mdt_lock_reply_compat(info->mti_mdt, dlmrep);
2629 /* If we're DISCONNECTing, the mdt_export_data is already freed */
2630 if (likely(rc == 0 && req->rq_export && h->mh_opc != MDS_DISCONNECT))
2631 target_committed_to_req(req);
2633 if (unlikely(req_is_replay(req) &&
2634 lustre_msg_get_transno(req->rq_reqmsg) == 0)) {
2635 DEBUG_REQ(D_ERROR, req, "transno is 0 during REPLAY");
2639 target_send_reply(req, rc, info->mti_fail_id);
2643 void mdt_lock_handle_init(struct mdt_lock_handle *lh)
2645 lh->mlh_type = MDT_NUL_LOCK;
2646 lh->mlh_reg_lh.cookie = 0ull;
2647 lh->mlh_reg_mode = LCK_MINMODE;
2648 lh->mlh_pdo_lh.cookie = 0ull;
2649 lh->mlh_pdo_mode = LCK_MINMODE;
2652 void mdt_lock_handle_fini(struct mdt_lock_handle *lh)
2654 LASSERT(!lustre_handle_is_used(&lh->mlh_reg_lh));
2655 LASSERT(!lustre_handle_is_used(&lh->mlh_pdo_lh));
2659 * Initialize fields of struct mdt_thread_info. Other fields are left in
2660 * uninitialized state, because it's too expensive to zero out whole
2661 * mdt_thread_info (> 1K) on each request arrival.
2663 static void mdt_thread_info_init(struct ptlrpc_request *req,
2664 struct mdt_thread_info *info)
2667 struct md_capainfo *ci;
2669 req_capsule_init(&req->rq_pill, req, RCL_SERVER);
2670 info->mti_pill = &req->rq_pill;
2673 for (i = 0; i < ARRAY_SIZE(info->mti_lh); i++)
2674 mdt_lock_handle_init(&info->mti_lh[i]);
2676 /* mdt device: it can be NULL while CONNECT */
2677 if (req->rq_export) {
2678 info->mti_mdt = mdt_dev(req->rq_export->exp_obd->obd_lu_dev);
2679 info->mti_exp = req->rq_export;
2681 info->mti_mdt = NULL;
2682 info->mti_env = req->rq_svc_thread->t_env;
2683 ci = md_capainfo(info->mti_env);
2684 memset(ci, 0, sizeof *ci);
2685 if (req->rq_export) {
2686 if (exp_connect_rmtclient(req->rq_export))
2687 ci->mc_auth = LC_ID_CONVERT;
2688 else if (req->rq_export->exp_connect_flags &
2689 OBD_CONNECT_MDS_CAPA)
2690 ci->mc_auth = LC_ID_PLAIN;
2692 ci->mc_auth = LC_ID_NONE;
2695 info->mti_fail_id = OBD_FAIL_MDS_ALL_REPLY_NET;
2696 info->mti_transno = lustre_msg_get_transno(req->rq_reqmsg);
2697 info->mti_mos = NULL;
2699 memset(&info->mti_attr, 0, sizeof(info->mti_attr));
2700 info->mti_body = NULL;
2701 info->mti_object = NULL;
2702 info->mti_dlm_req = NULL;
2703 info->mti_has_trans = 0;
2704 info->mti_no_need_trans = 0;
2705 info->mti_cross_ref = 0;
2706 info->mti_opdata = 0;
2708 /* To not check for split by default. */
2709 info->mti_spec.sp_ck_split = 0;
2710 info->mti_spec.no_create = 0;
2713 static void mdt_thread_info_fini(struct mdt_thread_info *info)
2717 req_capsule_fini(info->mti_pill);
2718 if (info->mti_object != NULL) {
2720 * freeing an object may lead to OSD level transaction, do not
2721 * let it mess with MDT. bz19385.
2723 info->mti_no_need_trans = 1;
2724 mdt_object_put(info->mti_env, info->mti_object);
2725 info->mti_object = NULL;
2727 for (i = 0; i < ARRAY_SIZE(info->mti_lh); i++)
2728 mdt_lock_handle_fini(&info->mti_lh[i]);
2729 info->mti_env = NULL;
2732 static int mdt_filter_recovery_request(struct ptlrpc_request *req,
2733 struct obd_device *obd, int *process)
2735 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
2736 case MDS_CONNECT: /* This will never get here, but for completeness. */
2737 case OST_CONNECT: /* This will never get here, but for completeness. */
2738 case MDS_DISCONNECT:
2739 case OST_DISCONNECT:
2744 case MDS_DONE_WRITING:
2745 case MDS_SYNC: /* used in unmounting */
2751 *process = target_queue_recovery_request(req, obd);
2755 DEBUG_REQ(D_ERROR, req, "not permitted during recovery");
2762 * Handle recovery. Return:
2763 * +1: continue request processing;
2764 * -ve: abort immediately with the given error code;
2765 * 0: send reply with error code in req->rq_status;
2767 static int mdt_recovery(struct mdt_thread_info *info)
2769 struct ptlrpc_request *req = mdt_info_req(info);
2770 struct obd_device *obd;
2774 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
2777 case SEC_CTX_INIT_CONT:
2783 rc = mdt_handle_idmap(info);
2792 if (unlikely(!class_connected_export(req->rq_export))) {
2793 CERROR("operation %d on unconnected MDS from %s\n",
2794 lustre_msg_get_opc(req->rq_reqmsg),
2795 libcfs_id2str(req->rq_peer));
2796 /* FIXME: For CMD cleanup, when mds_B stop, the req from
2797 * mds_A will get -ENOTCONN(especially for ping req),
2798 * which will cause that mds_A deactive timeout, then when
2799 * mds_A cleanup, the cleanup process will be suspended since
2800 * deactive timeout is not zero.
2802 req->rq_status = -ENOTCONN;
2803 target_send_reply(req, -ENOTCONN, info->mti_fail_id);
2807 /* sanity check: if the xid matches, the request must be marked as a
2808 * resent or replayed */
2809 if (req_xid_is_last(req)) {
2810 if (!(lustre_msg_get_flags(req->rq_reqmsg) &
2811 (MSG_RESENT | MSG_REPLAY))) {
2812 DEBUG_REQ(D_WARNING, req, "rq_xid "LPU64" matches last_xid, "
2813 "expected REPLAY or RESENT flag (%x)", req->rq_xid,
2814 lustre_msg_get_flags(req->rq_reqmsg));
2816 req->rq_status = -ENOTCONN;
2821 /* else: note the opposite is not always true; a RESENT req after a
2822 * failover will usually not match the last_xid, since it was likely
2823 * never committed. A REPLAYed request will almost never match the
2824 * last xid, however it could for a committed, but still retained,
2827 obd = req->rq_export->exp_obd;
2829 /* Check for aborted recovery... */
2830 if (unlikely(obd->obd_recovering)) {
2833 DEBUG_REQ(D_INFO, req, "Got new replay");
2834 rc = mdt_filter_recovery_request(req, obd, &should_process);
2835 if (rc != 0 || !should_process)
2837 else if (should_process < 0) {
2838 req->rq_status = should_process;
2839 rc = ptlrpc_error(req);
2846 static int mdt_msg_check_version(struct lustre_msg *msg)
2850 switch (lustre_msg_get_opc(msg)) {
2852 case MDS_DISCONNECT:
2855 case SEC_CTX_INIT_CONT:
2857 rc = lustre_msg_check_version(msg, LUSTRE_OBD_VERSION);
2859 CERROR("bad opc %u version %08x, expecting %08x\n",
2860 lustre_msg_get_opc(msg),
2861 lustre_msg_get_version(msg),
2862 LUSTRE_OBD_VERSION);
2866 case MDS_GETATTR_NAME:
2873 case MDS_DONE_WRITING:
2880 case MDS_QUOTACHECK:
2886 rc = lustre_msg_check_version(msg, LUSTRE_MDS_VERSION);
2888 CERROR("bad opc %u version %08x, expecting %08x\n",
2889 lustre_msg_get_opc(msg),
2890 lustre_msg_get_version(msg),
2891 LUSTRE_MDS_VERSION);
2895 case LDLM_BL_CALLBACK:
2896 case LDLM_CP_CALLBACK:
2897 rc = lustre_msg_check_version(msg, LUSTRE_DLM_VERSION);
2899 CERROR("bad opc %u version %08x, expecting %08x\n",
2900 lustre_msg_get_opc(msg),
2901 lustre_msg_get_version(msg),
2902 LUSTRE_DLM_VERSION);
2904 case OBD_LOG_CANCEL:
2905 case LLOG_ORIGIN_HANDLE_CREATE:
2906 case LLOG_ORIGIN_HANDLE_NEXT_BLOCK:
2907 case LLOG_ORIGIN_HANDLE_READ_HEADER:
2908 case LLOG_ORIGIN_HANDLE_CLOSE:
2909 case LLOG_ORIGIN_HANDLE_DESTROY:
2910 case LLOG_ORIGIN_HANDLE_PREV_BLOCK:
2912 rc = lustre_msg_check_version(msg, LUSTRE_LOG_VERSION);
2914 CERROR("bad opc %u version %08x, expecting %08x\n",
2915 lustre_msg_get_opc(msg),
2916 lustre_msg_get_version(msg),
2917 LUSTRE_LOG_VERSION);
2920 CERROR("MDS unknown opcode %d\n", lustre_msg_get_opc(msg));
2926 static int mdt_handle0(struct ptlrpc_request *req,
2927 struct mdt_thread_info *info,
2928 struct mdt_opc_slice *supported)
2930 struct mdt_handler *h;
2931 struct lustre_msg *msg;
2936 if (OBD_FAIL_CHECK_ORSET(OBD_FAIL_MDS_ALL_REQUEST_NET, OBD_FAIL_ONCE))
2939 LASSERT(current->journal_info == NULL);
2941 msg = req->rq_reqmsg;
2942 rc = mdt_msg_check_version(msg);
2943 if (likely(rc == 0)) {
2944 rc = mdt_recovery(info);
2945 if (likely(rc == +1)) {
2946 h = mdt_handler_find(lustre_msg_get_opc(msg),
2948 if (likely(h != NULL)) {
2949 rc = mdt_req_handle(info, h, req);
2951 CERROR("The unsupported opc: 0x%x\n",
2952 lustre_msg_get_opc(msg) );
2953 req->rq_status = -ENOTSUPP;
2954 rc = ptlrpc_error(req);
2959 CERROR(LUSTRE_MDT_NAME" drops mal-formed request\n");
2964 * MDT handler function called by ptlrpc service thread when request comes.
2966 * XXX common "target" functionality should be factored into separate module
2967 * shared by mdt, ost and stand-alone services like fld.
2969 static int mdt_handle_common(struct ptlrpc_request *req,
2970 struct mdt_opc_slice *supported)
2973 struct mdt_thread_info *info;
2977 env = req->rq_svc_thread->t_env;
2978 LASSERT(env != NULL);
2979 LASSERT(env->le_ses != NULL);
2980 LASSERT(env->le_ctx.lc_thread == req->rq_svc_thread);
2981 info = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
2982 LASSERT(info != NULL);
2984 mdt_thread_info_init(req, info);
2986 rc = mdt_handle0(req, info, supported);
2988 mdt_thread_info_fini(info);
2993 * This is called from recovery code as handler of _all_ RPC types, FLD and SEQ
2996 int mdt_recovery_handle(struct ptlrpc_request *req)
3001 switch (lustre_msg_get_opc(req->rq_reqmsg)) {
3003 rc = mdt_handle_common(req, mdt_fld_handlers);
3006 rc = mdt_handle_common(req, mdt_seq_handlers);
3009 rc = mdt_handle_common(req, mdt_regular_handlers);
3016 static int mdt_regular_handle(struct ptlrpc_request *req)
3018 return mdt_handle_common(req, mdt_regular_handlers);
3021 static int mdt_readpage_handle(struct ptlrpc_request *req)
3023 return mdt_handle_common(req, mdt_readpage_handlers);
3026 static int mdt_xmds_handle(struct ptlrpc_request *req)
3028 return mdt_handle_common(req, mdt_xmds_handlers);
3031 static int mdt_mdsc_handle(struct ptlrpc_request *req)
3033 return mdt_handle_common(req, mdt_seq_handlers);
3036 static int mdt_mdss_handle(struct ptlrpc_request *req)
3038 return mdt_handle_common(req, mdt_seq_handlers);
3041 static int mdt_dtss_handle(struct ptlrpc_request *req)
3043 return mdt_handle_common(req, mdt_seq_handlers);
3046 static int mdt_fld_handle(struct ptlrpc_request *req)
3048 return mdt_handle_common(req, mdt_fld_handlers);
3064 static int mdt_intent_getattr(enum mdt_it_code opcode,
3065 struct mdt_thread_info *info,
3066 struct ldlm_lock **,
3068 static int mdt_intent_reint(enum mdt_it_code opcode,
3069 struct mdt_thread_info *info,
3070 struct ldlm_lock **,
3073 static struct mdt_it_flavor {
3074 const struct req_format *it_fmt;
3076 int (*it_act)(enum mdt_it_code ,
3077 struct mdt_thread_info *,
3078 struct ldlm_lock **,
3081 } mdt_it_flavor[] = {
3083 .it_fmt = &RQF_LDLM_INTENT,
3084 /*.it_flags = HABEO_REFERO,*/
3086 .it_act = mdt_intent_reint,
3087 .it_reint = REINT_OPEN
3090 .it_fmt = &RQF_LDLM_INTENT,
3091 .it_flags = MUTABOR,
3092 .it_act = mdt_intent_reint,
3093 .it_reint = REINT_OPEN
3096 .it_fmt = &RQF_LDLM_INTENT,
3097 .it_flags = MUTABOR,
3098 .it_act = mdt_intent_reint,
3099 .it_reint = REINT_CREATE
3101 [MDT_IT_GETATTR] = {
3102 .it_fmt = &RQF_LDLM_INTENT_GETATTR,
3103 .it_flags = HABEO_REFERO,
3104 .it_act = mdt_intent_getattr
3106 [MDT_IT_READDIR] = {
3112 .it_fmt = &RQF_LDLM_INTENT_GETATTR,
3113 .it_flags = HABEO_REFERO,
3114 .it_act = mdt_intent_getattr
3117 .it_fmt = &RQF_LDLM_INTENT_UNLINK,
3118 .it_flags = MUTABOR,
3120 .it_reint = REINT_UNLINK
3124 .it_flags = MUTABOR,
3127 [MDT_IT_GETXATTR] = {
3134 int mdt_intent_lock_replace(struct mdt_thread_info *info,
3135 struct ldlm_lock **lockp,
3136 struct ldlm_lock *new_lock,
3137 struct mdt_lock_handle *lh,
3140 struct ptlrpc_request *req = mdt_info_req(info);
3141 struct ldlm_lock *lock = *lockp;
3144 * Get new lock only for cases when possible resent did not find any
3147 if (new_lock == NULL)
3148 new_lock = ldlm_handle2lock_long(&lh->mlh_reg_lh, 0);
3150 if (new_lock == NULL && (flags & LDLM_FL_INTENT_ONLY)) {
3151 lh->mlh_reg_lh.cookie = 0;
3155 LASSERTF(new_lock != NULL,
3156 "lockh "LPX64"\n", lh->mlh_reg_lh.cookie);
3159 * If we've already given this lock to a client once, then we should
3160 * have no readers or writers. Otherwise, we should have one reader
3161 * _or_ writer ref (which will be zeroed below) before returning the
3164 if (new_lock->l_export == req->rq_export) {
3165 LASSERT(new_lock->l_readers + new_lock->l_writers == 0);
3167 LASSERT(new_lock->l_export == NULL);
3168 LASSERT(new_lock->l_readers + new_lock->l_writers == 1);
3173 if (new_lock->l_export == req->rq_export) {
3175 * Already gave this to the client, which means that we
3176 * reconstructed a reply.
3178 LASSERT(lustre_msg_get_flags(req->rq_reqmsg) &
3180 lh->mlh_reg_lh.cookie = 0;
3181 RETURN(ELDLM_LOCK_REPLACED);
3185 * Fixup the lock to be given to the client.
3187 lock_res_and_lock(new_lock);
3188 /* Zero new_lock->l_readers and new_lock->l_writers without triggering
3189 * possible blocking AST. */
3190 while (new_lock->l_readers > 0) {
3191 lu_ref_del(&new_lock->l_reference, "reader", new_lock);
3192 lu_ref_del(&new_lock->l_reference, "user", new_lock);
3193 new_lock->l_readers--;
3195 while (new_lock->l_writers > 0) {
3196 lu_ref_del(&new_lock->l_reference, "writer", new_lock);
3197 lu_ref_del(&new_lock->l_reference, "user", new_lock);
3198 new_lock->l_writers--;
3201 new_lock->l_export = class_export_lock_get(req->rq_export, new_lock);
3202 new_lock->l_blocking_ast = lock->l_blocking_ast;
3203 new_lock->l_completion_ast = lock->l_completion_ast;
3204 new_lock->l_remote_handle = lock->l_remote_handle;
3205 new_lock->l_flags &= ~LDLM_FL_LOCAL;
3207 unlock_res_and_lock(new_lock);
3209 cfs_hash_add(new_lock->l_export->exp_lock_hash,
3210 &new_lock->l_remote_handle,
3211 &new_lock->l_exp_hash);
3213 LDLM_LOCK_RELEASE(new_lock);
3214 lh->mlh_reg_lh.cookie = 0;
3216 RETURN(ELDLM_LOCK_REPLACED);
3219 static void mdt_intent_fixup_resent(struct mdt_thread_info *info,
3220 struct ldlm_lock *new_lock,
3221 struct ldlm_lock **old_lock,
3222 struct mdt_lock_handle *lh)
3224 struct ptlrpc_request *req = mdt_info_req(info);
3225 struct obd_export *exp = req->rq_export;
3226 struct lustre_handle remote_hdl;
3227 struct ldlm_request *dlmreq;
3228 struct ldlm_lock *lock;
3230 if (!(lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT))
3233 dlmreq = req_capsule_client_get(info->mti_pill, &RMF_DLM_REQ);
3234 remote_hdl = dlmreq->lock_handle[0];
3236 lock = cfs_hash_lookup(exp->exp_lock_hash, &remote_hdl);
3238 if (lock != new_lock) {
3239 lh->mlh_reg_lh.cookie = lock->l_handle.h_cookie;
3240 lh->mlh_reg_mode = lock->l_granted_mode;
3242 LDLM_DEBUG(lock, "Restoring lock cookie");
3243 DEBUG_REQ(D_DLMTRACE, req,
3244 "restoring lock cookie "LPX64,
3245 lh->mlh_reg_lh.cookie);
3247 *old_lock = LDLM_LOCK_GET(lock);
3248 cfs_hash_put(exp->exp_lock_hash, &lock->l_exp_hash);
3252 cfs_hash_put(exp->exp_lock_hash, &lock->l_exp_hash);
3256 * If the xid matches, then we know this is a resent request, and allow
3257 * it. (It's probably an OPEN, for which we don't send a lock.
3259 if (req_xid_is_last(req))
3263 * This remote handle isn't enqueued, so we never received or processed
3264 * this request. Clear MSG_RESENT, because it can be handled like any
3265 * normal request now.
3267 lustre_msg_clear_flags(req->rq_reqmsg, MSG_RESENT);
3269 DEBUG_REQ(D_DLMTRACE, req, "no existing lock with rhandle "LPX64,
3273 static int mdt_intent_getattr(enum mdt_it_code opcode,
3274 struct mdt_thread_info *info,
3275 struct ldlm_lock **lockp,
3278 struct mdt_lock_handle *lhc = &info->mti_lh[MDT_LH_RMT];
3279 struct ldlm_lock *new_lock = NULL;
3281 struct ldlm_reply *ldlm_rep;
3282 struct ptlrpc_request *req;
3283 struct mdt_body *reqbody;
3284 struct mdt_body *repbody;
3288 reqbody = req_capsule_client_get(info->mti_pill, &RMF_MDT_BODY);
3291 repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
3294 info->mti_spec.sp_ck_split = !!(reqbody->valid & OBD_MD_FLCKSPLIT);
3295 info->mti_cross_ref = !!(reqbody->valid & OBD_MD_FLCROSSREF);
3296 repbody->eadatasize = 0;
3297 repbody->aclsize = 0;
3301 child_bits = MDS_INODELOCK_LOOKUP;
3303 case MDT_IT_GETATTR:
3304 child_bits = MDS_INODELOCK_LOOKUP | MDS_INODELOCK_UPDATE;
3307 CERROR("Unhandled till now");
3308 GOTO(out_shrink, rc = -EINVAL);
3311 rc = mdt_init_ucred(info, reqbody);
3313 GOTO(out_shrink, rc);
3315 req = info->mti_pill->rc_req;
3316 ldlm_rep = req_capsule_server_get(info->mti_pill, &RMF_DLM_REP);
3317 mdt_set_disposition(info, ldlm_rep, DISP_IT_EXECD);
3319 /* Get lock from request for possible resent case. */
3320 mdt_intent_fixup_resent(info, *lockp, &new_lock, lhc);
3322 ldlm_rep->lock_policy_res2 =
3323 mdt_getattr_name_lock(info, lhc, child_bits, ldlm_rep);
3325 if (mdt_get_disposition(ldlm_rep, DISP_LOOKUP_NEG))
3326 ldlm_rep->lock_policy_res2 = 0;
3327 if (!mdt_get_disposition(ldlm_rep, DISP_LOOKUP_POS) ||
3328 ldlm_rep->lock_policy_res2) {
3329 lhc->mlh_reg_lh.cookie = 0ull;
3330 GOTO(out_ucred, rc = ELDLM_LOCK_ABORTED);
3333 rc = mdt_intent_lock_replace(info, lockp, new_lock, lhc, flags);
3336 mdt_exit_ucred(info);
3338 mdt_shrink_reply(info);
3342 static int mdt_intent_reint(enum mdt_it_code opcode,
3343 struct mdt_thread_info *info,
3344 struct ldlm_lock **lockp,
3347 struct mdt_lock_handle *lhc = &info->mti_lh[MDT_LH_RMT];
3348 struct ldlm_reply *rep = NULL;
3352 static const struct req_format *intent_fmts[REINT_MAX] = {
3353 [REINT_CREATE] = &RQF_LDLM_INTENT_CREATE,
3354 [REINT_OPEN] = &RQF_LDLM_INTENT_OPEN
3359 opc = mdt_reint_opcode(info, intent_fmts);
3363 if (mdt_it_flavor[opcode].it_reint != opc) {
3364 CERROR("Reint code %ld doesn't match intent: %d\n",
3366 RETURN(err_serious(-EPROTO));
3369 /* Get lock from request for possible resent case. */
3370 mdt_intent_fixup_resent(info, *lockp, NULL, lhc);
3372 rc = mdt_reint_internal(info, lhc, opc);
3374 /* Check whether the reply has been packed successfully. */
3375 if (mdt_info_req(info)->rq_repmsg != NULL)
3376 rep = req_capsule_server_get(info->mti_pill, &RMF_DLM_REP);
3378 RETURN(err_serious(-EFAULT));
3380 /* MDC expects this in any case */
3382 mdt_set_disposition(info, rep, DISP_LOOKUP_EXECD);
3384 /* Cross-ref case, the lock should be returned to the client */
3385 if (rc == -EREMOTE) {
3386 LASSERT(lustre_handle_is_used(&lhc->mlh_reg_lh));
3387 rep->lock_policy_res2 = 0;
3388 rc = mdt_intent_lock_replace(info, lockp, NULL, lhc, flags);
3391 rep->lock_policy_res2 = clear_serious(rc);
3393 if (rc == -ENOTCONN || rc == -ENODEV ||
3394 rc == -EOVERFLOW) { /**< if VBR failure then return error */
3396 * If it is the disconnect error (ENODEV & ENOCONN), the error
3397 * will be returned by rq_status, and client at ptlrpc layer
3398 * will detect this, then disconnect, reconnect the import
3399 * immediately, instead of impacting the following the rpc.
3401 lhc->mlh_reg_lh.cookie = 0ull;
3405 * For other cases, the error will be returned by intent.
3406 * and client will retrieve the result from intent.
3409 * FIXME: when open lock is finished, that should be
3412 if (lustre_handle_is_used(&lhc->mlh_reg_lh)) {
3413 rep->lock_policy_res2 = 0;
3414 rc = mdt_intent_lock_replace(info, lockp, NULL, lhc, flags);
3417 lhc->mlh_reg_lh.cookie = 0ull;
3418 RETURN(ELDLM_LOCK_ABORTED);
3423 static int mdt_intent_code(long itcode)
3431 case IT_OPEN|IT_CREAT:
3438 rc = MDT_IT_READDIR;
3441 rc = MDT_IT_GETATTR;
3453 rc = MDT_IT_GETXATTR;
3456 CERROR("Unknown intent opcode: %ld\n", itcode);
3463 static int mdt_intent_opc(long itopc, struct mdt_thread_info *info,
3464 struct ldlm_lock **lockp, int flags)
3466 struct req_capsule *pill;
3467 struct mdt_it_flavor *flv;
3472 opc = mdt_intent_code(itopc);
3476 pill = info->mti_pill;
3477 flv = &mdt_it_flavor[opc];
3479 if (flv->it_fmt != NULL)
3480 req_capsule_extend(pill, flv->it_fmt);
3482 rc = mdt_unpack_req_pack_rep(info, flv->it_flags);
3484 struct ptlrpc_request *req = mdt_info_req(info);
3485 if (flv->it_flags & MUTABOR &&
3486 req->rq_export->exp_connect_flags & OBD_CONNECT_RDONLY)
3489 if (rc == 0 && flv->it_act != NULL) {
3490 /* execute policy */
3491 rc = flv->it_act(opc, info, lockp, flags);
3498 static int mdt_intent_policy(struct ldlm_namespace *ns,
3499 struct ldlm_lock **lockp, void *req_cookie,
3500 ldlm_mode_t mode, int flags, void *data)
3502 struct mdt_thread_info *info;
3503 struct ptlrpc_request *req = req_cookie;
3504 struct ldlm_intent *it;
3505 struct req_capsule *pill;
3510 LASSERT(req != NULL);
3512 info = lu_context_key_get(&req->rq_svc_thread->t_env->le_ctx,
3514 LASSERT(info != NULL);
3515 pill = info->mti_pill;
3516 LASSERT(pill->rc_req == req);
3518 if (req->rq_reqmsg->lm_bufcount > DLM_INTENT_IT_OFF) {
3519 req_capsule_extend(pill, &RQF_LDLM_INTENT);
3520 it = req_capsule_client_get(pill, &RMF_LDLM_INTENT);
3522 const struct ldlm_request *dlmreq;
3525 rc = mdt_intent_opc(it->opc, info, lockp, flags);
3530 * Lock without inodebits makes no sense and will oops
3531 * later in ldlm. Let's check it now to see if we have
3532 * wrong lock from client or bits get corrupted
3533 * somewhere in mdt_intent_opc().
3535 dlmreq = info->mti_dlm_req;
3536 req_bits = dlmreq->lock_desc.l_policy_data.l_inodebits.bits;
3537 LASSERT(req_bits != 0);
3540 rc = err_serious(-EFAULT);
3542 /* No intent was provided */
3543 LASSERT(pill->rc_fmt == &RQF_LDLM_ENQUEUE);
3544 rc = req_capsule_server_pack(pill);
3546 rc = err_serious(rc);
3551 static int mdt_seq_fini(const struct lu_env *env,
3552 struct mdt_device *m)
3554 struct md_site *ms = mdt_md_site(m);
3558 if (ms->ms_server_seq) {
3559 seq_server_fini(ms->ms_server_seq, env);
3560 OBD_FREE_PTR(ms->ms_server_seq);
3561 ms->ms_server_seq = NULL;
3564 if (ms->ms_control_seq) {
3565 seq_server_fini(ms->ms_control_seq, env);
3566 OBD_FREE_PTR(ms->ms_control_seq);
3567 ms->ms_control_seq = NULL;
3570 if (ms->ms_client_seq) {
3571 seq_client_fini(ms->ms_client_seq);
3572 OBD_FREE_PTR(ms->ms_client_seq);
3573 ms->ms_client_seq = NULL;
3580 static int mdt_seq_init(const struct lu_env *env,
3582 struct mdt_device *m)
3589 ms = mdt_md_site(m);
3592 * This is sequence-controller node. Init seq-controller server on local
3595 if (ms->ms_node_id == 0) {
3596 LASSERT(ms->ms_control_seq == NULL);
3598 OBD_ALLOC_PTR(ms->ms_control_seq);
3599 if (ms->ms_control_seq == NULL)
3602 rc = seq_server_init(ms->ms_control_seq,
3603 m->mdt_bottom, uuid,
3604 LUSTRE_SEQ_CONTROLLER,
3609 GOTO(out_seq_fini, rc);
3611 OBD_ALLOC_PTR(ms->ms_client_seq);
3612 if (ms->ms_client_seq == NULL)
3613 GOTO(out_seq_fini, rc = -ENOMEM);
3615 OBD_ALLOC(prefix, MAX_OBD_NAME + 5);
3616 if (prefix == NULL) {
3617 OBD_FREE_PTR(ms->ms_client_seq);
3618 GOTO(out_seq_fini, rc = -ENOMEM);
3621 snprintf(prefix, MAX_OBD_NAME + 5, "ctl-%s",
3625 * Init seq-controller client after seq-controller server is
3626 * ready. Pass ms->ms_control_seq to it for direct talking.
3628 rc = seq_client_init(ms->ms_client_seq, NULL,
3629 LUSTRE_SEQ_METADATA, prefix,
3630 ms->ms_control_seq);
3631 OBD_FREE(prefix, MAX_OBD_NAME + 5);
3634 GOTO(out_seq_fini, rc);
3637 /* Init seq-server on local MDT */
3638 LASSERT(ms->ms_server_seq == NULL);
3640 OBD_ALLOC_PTR(ms->ms_server_seq);
3641 if (ms->ms_server_seq == NULL)
3642 GOTO(out_seq_fini, rc = -ENOMEM);
3644 rc = seq_server_init(ms->ms_server_seq,
3645 m->mdt_bottom, uuid,
3650 GOTO(out_seq_fini, rc = -ENOMEM);
3652 /* Assign seq-controller client to local seq-server. */
3653 if (ms->ms_node_id == 0) {
3654 LASSERT(ms->ms_client_seq != NULL);
3656 rc = seq_server_set_cli(ms->ms_server_seq,
3664 mdt_seq_fini(env, m);
3669 * Init client sequence manager which is used by local MDS to talk to sequence
3670 * controller on remote node.
3672 static int mdt_seq_init_cli(const struct lu_env *env,
3673 struct mdt_device *m,
3674 struct lustre_cfg *cfg)
3676 struct md_site *ms = mdt_md_site(m);
3677 struct obd_device *mdc;
3678 struct obd_uuid *uuidp, *mdcuuidp;
3679 char *uuid_str, *mdc_uuid_str;
3682 struct mdt_thread_info *info;
3683 char *p, *index_string = lustre_cfg_string(cfg, 2);
3686 info = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
3687 uuidp = &info->mti_u.uuid[0];
3688 mdcuuidp = &info->mti_u.uuid[1];
3690 LASSERT(index_string);
3692 index = simple_strtol(index_string, &p, 10);
3694 CERROR("Invalid index in lustre_cgf, offset 2\n");
3698 /* check if this is adding the first MDC and controller is not yet
3700 if (index != 0 || ms->ms_client_seq)
3703 uuid_str = lustre_cfg_string(cfg, 1);
3704 mdc_uuid_str = lustre_cfg_string(cfg, 4);
3705 obd_str2uuid(uuidp, uuid_str);
3706 obd_str2uuid(mdcuuidp, mdc_uuid_str);
3708 mdc = class_find_client_obd(uuidp, LUSTRE_MDC_NAME, mdcuuidp);
3710 CERROR("can't find controller MDC by uuid %s\n",
3713 } else if (!mdc->obd_set_up) {
3714 CERROR("target %s not set up\n", mdc->obd_name);
3717 LASSERT(ms->ms_control_exp);
3718 OBD_ALLOC_PTR(ms->ms_client_seq);
3719 if (ms->ms_client_seq != NULL) {
3722 OBD_ALLOC(prefix, MAX_OBD_NAME + 5);
3726 snprintf(prefix, MAX_OBD_NAME + 5, "ctl-%s",
3729 rc = seq_client_init(ms->ms_client_seq,
3731 LUSTRE_SEQ_METADATA,
3733 OBD_FREE(prefix, MAX_OBD_NAME + 5);
3740 LASSERT(ms->ms_server_seq != NULL);
3741 rc = seq_server_set_cli(ms->ms_server_seq, ms->ms_client_seq,
3748 static void mdt_seq_fini_cli(struct mdt_device *m)
3754 ms = mdt_md_site(m);
3757 if (ms->ms_server_seq)
3758 seq_server_set_cli(ms->ms_server_seq,
3761 if (ms->ms_control_exp) {
3762 class_export_put(ms->ms_control_exp);
3763 ms->ms_control_exp = NULL;
3772 static int mdt_fld_fini(const struct lu_env *env,
3773 struct mdt_device *m)
3775 struct md_site *ms = mdt_md_site(m);
3778 if (ms && ms->ms_server_fld) {
3779 fld_server_fini(ms->ms_server_fld, env);
3780 OBD_FREE_PTR(ms->ms_server_fld);
3781 ms->ms_server_fld = NULL;
3787 static int mdt_fld_init(const struct lu_env *env,
3789 struct mdt_device *m)
3795 ms = mdt_md_site(m);
3797 OBD_ALLOC_PTR(ms->ms_server_fld);
3798 if (ms->ms_server_fld == NULL)
3799 RETURN(rc = -ENOMEM);
3801 rc = fld_server_init(ms->ms_server_fld,
3802 m->mdt_bottom, uuid,
3803 env, ms->ms_node_id);
3805 OBD_FREE_PTR(ms->ms_server_fld);
3806 ms->ms_server_fld = NULL;
3813 /* device init/fini methods */
3814 static void mdt_stop_ptlrpc_service(struct mdt_device *m)
3817 if (m->mdt_regular_service != NULL) {
3818 ptlrpc_unregister_service(m->mdt_regular_service);
3819 m->mdt_regular_service = NULL;
3821 if (m->mdt_readpage_service != NULL) {
3822 ptlrpc_unregister_service(m->mdt_readpage_service);
3823 m->mdt_readpage_service = NULL;
3825 if (m->mdt_xmds_service != NULL) {
3826 ptlrpc_unregister_service(m->mdt_xmds_service);
3827 m->mdt_xmds_service = NULL;
3829 if (m->mdt_setattr_service != NULL) {
3830 ptlrpc_unregister_service(m->mdt_setattr_service);
3831 m->mdt_setattr_service = NULL;
3833 if (m->mdt_mdsc_service != NULL) {
3834 ptlrpc_unregister_service(m->mdt_mdsc_service);
3835 m->mdt_mdsc_service = NULL;
3837 if (m->mdt_mdss_service != NULL) {
3838 ptlrpc_unregister_service(m->mdt_mdss_service);
3839 m->mdt_mdss_service = NULL;
3841 if (m->mdt_dtss_service != NULL) {
3842 ptlrpc_unregister_service(m->mdt_dtss_service);
3843 m->mdt_dtss_service = NULL;
3845 if (m->mdt_fld_service != NULL) {
3846 ptlrpc_unregister_service(m->mdt_fld_service);
3847 m->mdt_fld_service = NULL;
3852 static int mdt_start_ptlrpc_service(struct mdt_device *m)
3855 static struct ptlrpc_service_conf conf;
3856 cfs_proc_dir_entry_t *procfs_entry;
3859 procfs_entry = m->mdt_md_dev.md_lu_dev.ld_obd->obd_proc_entry;
3861 conf = (typeof(conf)) {
3862 .psc_nbufs = MDS_NBUFS,
3863 .psc_bufsize = MDS_BUFSIZE,
3864 .psc_max_req_size = MDS_MAXREQSIZE,
3865 .psc_max_reply_size = MDS_MAXREPSIZE,
3866 .psc_req_portal = MDS_REQUEST_PORTAL,
3867 .psc_rep_portal = MDC_REPLY_PORTAL,
3868 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
3870 * We'd like to have a mechanism to set this on a per-device
3871 * basis, but alas...
3873 .psc_min_threads = mdt_min_threads,
3874 .psc_max_threads = mdt_max_threads,
3875 .psc_ctx_tags = LCT_MD_THREAD
3878 m->mdt_ldlm_client = &m->mdt_md_dev.md_lu_dev.ld_obd->obd_ldlm_client;
3879 ptlrpc_init_client(LDLM_CB_REQUEST_PORTAL, LDLM_CB_REPLY_PORTAL,
3880 "mdt_ldlm_client", m->mdt_ldlm_client);
3882 m->mdt_regular_service =
3883 ptlrpc_init_svc_conf(&conf, mdt_regular_handle, LUSTRE_MDT_NAME,
3884 procfs_entry, target_print_req,
3886 if (m->mdt_regular_service == NULL)
3889 rc = ptlrpc_start_threads(NULL, m->mdt_regular_service);
3891 GOTO(err_mdt_svc, rc);
3894 * readpage service configuration. Parameters have to be adjusted,
3897 conf = (typeof(conf)) {
3898 .psc_nbufs = MDS_NBUFS,
3899 .psc_bufsize = MDS_BUFSIZE,
3900 .psc_max_req_size = MDS_MAXREQSIZE,
3901 .psc_max_reply_size = MDS_MAXREPSIZE,
3902 .psc_req_portal = MDS_READPAGE_PORTAL,
3903 .psc_rep_portal = MDC_REPLY_PORTAL,
3904 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
3905 .psc_min_threads = mdt_min_threads,
3906 .psc_max_threads = mdt_max_threads,
3907 .psc_ctx_tags = LCT_MD_THREAD
3909 m->mdt_readpage_service =
3910 ptlrpc_init_svc_conf(&conf, mdt_readpage_handle,
3911 LUSTRE_MDT_NAME "_readpage",
3912 procfs_entry, target_print_req,"mdt_rdpg");
3914 if (m->mdt_readpage_service == NULL) {
3915 CERROR("failed to start readpage service\n");
3916 GOTO(err_mdt_svc, rc = -ENOMEM);
3919 rc = ptlrpc_start_threads(NULL, m->mdt_readpage_service);
3922 * setattr service configuration.
3924 conf = (typeof(conf)) {
3925 .psc_nbufs = MDS_NBUFS,
3926 .psc_bufsize = MDS_BUFSIZE,
3927 .psc_max_req_size = MDS_MAXREQSIZE,
3928 .psc_max_reply_size = MDS_MAXREPSIZE,
3929 .psc_req_portal = MDS_SETATTR_PORTAL,
3930 .psc_rep_portal = MDC_REPLY_PORTAL,
3931 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
3932 .psc_min_threads = mdt_min_threads,
3933 .psc_max_threads = mdt_max_threads,
3934 .psc_ctx_tags = LCT_MD_THREAD
3937 m->mdt_setattr_service =
3938 ptlrpc_init_svc_conf(&conf, mdt_regular_handle,
3939 LUSTRE_MDT_NAME "_setattr",
3940 procfs_entry, target_print_req,"mdt_attr");
3942 if (!m->mdt_setattr_service) {
3943 CERROR("failed to start setattr service\n");
3944 GOTO(err_mdt_svc, rc = -ENOMEM);
3947 rc = ptlrpc_start_threads(NULL, m->mdt_setattr_service);
3949 GOTO(err_mdt_svc, rc);
3952 * sequence controller service configuration
3954 conf = (typeof(conf)) {
3955 .psc_nbufs = MDS_NBUFS,
3956 .psc_bufsize = MDS_BUFSIZE,
3957 .psc_max_req_size = SEQ_MAXREQSIZE,
3958 .psc_max_reply_size = SEQ_MAXREPSIZE,
3959 .psc_req_portal = SEQ_CONTROLLER_PORTAL,
3960 .psc_rep_portal = MDC_REPLY_PORTAL,
3961 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
3962 .psc_min_threads = mdt_min_threads,
3963 .psc_max_threads = mdt_max_threads,
3964 .psc_ctx_tags = LCT_MD_THREAD|LCT_DT_THREAD
3967 m->mdt_mdsc_service =
3968 ptlrpc_init_svc_conf(&conf, mdt_mdsc_handle,
3969 LUSTRE_MDT_NAME"_mdsc",
3970 procfs_entry, target_print_req,"mdt_mdsc");
3971 if (!m->mdt_mdsc_service) {
3972 CERROR("failed to start seq controller service\n");
3973 GOTO(err_mdt_svc, rc = -ENOMEM);
3976 rc = ptlrpc_start_threads(NULL, m->mdt_mdsc_service);
3978 GOTO(err_mdt_svc, rc);
3981 * metadata sequence server service configuration
3983 conf = (typeof(conf)) {
3984 .psc_nbufs = MDS_NBUFS,
3985 .psc_bufsize = MDS_BUFSIZE,
3986 .psc_max_req_size = SEQ_MAXREQSIZE,
3987 .psc_max_reply_size = SEQ_MAXREPSIZE,
3988 .psc_req_portal = SEQ_METADATA_PORTAL,
3989 .psc_rep_portal = MDC_REPLY_PORTAL,
3990 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
3991 .psc_min_threads = mdt_min_threads,
3992 .psc_max_threads = mdt_max_threads,
3993 .psc_ctx_tags = LCT_MD_THREAD|LCT_DT_THREAD
3996 m->mdt_mdss_service =
3997 ptlrpc_init_svc_conf(&conf, mdt_mdss_handle,
3998 LUSTRE_MDT_NAME"_mdss",
3999 procfs_entry, target_print_req,"mdt_mdss");
4000 if (!m->mdt_mdss_service) {
4001 CERROR("failed to start metadata seq server service\n");
4002 GOTO(err_mdt_svc, rc = -ENOMEM);
4005 rc = ptlrpc_start_threads(NULL, m->mdt_mdss_service);
4007 GOTO(err_mdt_svc, rc);
4011 * Data sequence server service configuration. We want to have really
4012 * cluster-wide sequences space. This is why we start only one sequence
4013 * controller which manages space.
4015 conf = (typeof(conf)) {
4016 .psc_nbufs = MDS_NBUFS,
4017 .psc_bufsize = MDS_BUFSIZE,
4018 .psc_max_req_size = SEQ_MAXREQSIZE,
4019 .psc_max_reply_size = SEQ_MAXREPSIZE,
4020 .psc_req_portal = SEQ_DATA_PORTAL,
4021 .psc_rep_portal = OSC_REPLY_PORTAL,
4022 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
4023 .psc_min_threads = mdt_min_threads,
4024 .psc_max_threads = mdt_max_threads,
4025 .psc_ctx_tags = LCT_MD_THREAD|LCT_DT_THREAD
4028 m->mdt_dtss_service =
4029 ptlrpc_init_svc_conf(&conf, mdt_dtss_handle,
4030 LUSTRE_MDT_NAME"_dtss",
4031 procfs_entry, target_print_req,"mdt_dtss");
4032 if (!m->mdt_dtss_service) {
4033 CERROR("failed to start data seq server service\n");
4034 GOTO(err_mdt_svc, rc = -ENOMEM);
4037 rc = ptlrpc_start_threads(NULL, m->mdt_dtss_service);
4039 GOTO(err_mdt_svc, rc);
4041 /* FLD service start */
4042 conf = (typeof(conf)) {
4043 .psc_nbufs = MDS_NBUFS,
4044 .psc_bufsize = MDS_BUFSIZE,
4045 .psc_max_req_size = FLD_MAXREQSIZE,
4046 .psc_max_reply_size = FLD_MAXREPSIZE,
4047 .psc_req_portal = FLD_REQUEST_PORTAL,
4048 .psc_rep_portal = MDC_REPLY_PORTAL,
4049 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
4050 .psc_min_threads = mdt_min_threads,
4051 .psc_max_threads = mdt_max_threads,
4052 .psc_ctx_tags = LCT_DT_THREAD|LCT_MD_THREAD
4055 m->mdt_fld_service =
4056 ptlrpc_init_svc_conf(&conf, mdt_fld_handle,
4057 LUSTRE_MDT_NAME"_fld",
4058 procfs_entry, target_print_req, "mdt_fld");
4059 if (!m->mdt_fld_service) {
4060 CERROR("failed to start fld service\n");
4061 GOTO(err_mdt_svc, rc = -ENOMEM);
4064 rc = ptlrpc_start_threads(NULL, m->mdt_fld_service);
4066 GOTO(err_mdt_svc, rc);
4069 * mds-mds service configuration. Separate portal is used to allow
4070 * mds-mds requests be not blocked during recovery.
4072 conf = (typeof(conf)) {
4073 .psc_nbufs = MDS_NBUFS,
4074 .psc_bufsize = MDS_BUFSIZE,
4075 .psc_max_req_size = MDS_MAXREQSIZE,
4076 .psc_max_reply_size = MDS_MAXREPSIZE,
4077 .psc_req_portal = MDS_MDS_PORTAL,
4078 .psc_rep_portal = MDC_REPLY_PORTAL,
4079 .psc_watchdog_factor = MDT_SERVICE_WATCHDOG_FACTOR,
4080 .psc_min_threads = mdt_min_threads,
4081 .psc_max_threads = mdt_max_threads,
4082 .psc_ctx_tags = LCT_MD_THREAD
4084 m->mdt_xmds_service =
4085 ptlrpc_init_svc_conf(&conf, mdt_xmds_handle,
4086 LUSTRE_MDT_NAME "_mds",
4087 procfs_entry, target_print_req,"mdt_xmds");
4089 if (m->mdt_xmds_service == NULL) {
4090 CERROR("failed to start xmds service\n");
4091 GOTO(err_mdt_svc, rc = -ENOMEM);
4094 rc = ptlrpc_start_threads(NULL, m->mdt_xmds_service);
4096 GOTO(err_mdt_svc, rc);
4101 mdt_stop_ptlrpc_service(m);
4106 static void mdt_stack_fini(const struct lu_env *env,
4107 struct mdt_device *m, struct lu_device *top)
4109 struct obd_device *obd = mdt2obd_dev(m);
4110 struct lustre_cfg_bufs *bufs;
4111 struct lustre_cfg *lcfg;
4112 struct mdt_thread_info *info;
4116 info = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
4117 LASSERT(info != NULL);
4119 bufs = &info->mti_u.bufs;
4120 /* process cleanup, pass mdt obd name to get obd umount flags */
4121 lustre_cfg_bufs_reset(bufs, obd->obd_name);
4126 lustre_cfg_bufs_set_string(bufs, 1, flags);
4127 lcfg = lustre_cfg_new(LCFG_CLEANUP, bufs);
4129 CERROR("Cannot alloc lcfg!\n");
4134 top->ld_ops->ldo_process_config(env, top, lcfg);
4135 lustre_cfg_free(lcfg);
4137 lu_stack_fini(env, top);
4138 m->mdt_child = NULL;
4139 m->mdt_bottom = NULL;
4142 static struct lu_device *mdt_layer_setup(struct lu_env *env,
4143 const char *typename,
4144 struct lu_device *child,
4145 struct lustre_cfg *cfg)
4147 const char *dev = lustre_cfg_string(cfg, 0);
4148 struct obd_type *type;
4149 struct lu_device_type *ldt;
4150 struct lu_device *d;
4155 type = class_get_type(typename);
4157 CERROR("Unknown type: '%s'\n", typename);
4158 GOTO(out, rc = -ENODEV);
4161 rc = lu_env_refill((struct lu_env *)env);
4163 CERROR("Failure to refill session: '%d'\n", rc);
4169 CERROR("type: '%s'\n", typename);
4170 GOTO(out_type, rc = -EINVAL);
4173 ldt->ldt_obd_type = type;
4174 d = ldt->ldt_ops->ldto_device_alloc(env, ldt, cfg);
4176 CERROR("Cannot allocate device: '%s'\n", typename);
4177 GOTO(out_type, rc = -ENODEV);
4180 LASSERT(child->ld_site);
4181 d->ld_site = child->ld_site;
4184 rc = ldt->ldt_ops->ldto_device_init(env, d, dev, child);
4186 CERROR("can't init device '%s', rc %d\n", typename, rc);
4187 GOTO(out_alloc, rc);
4190 lu_ref_add(&d->ld_reference, "lu-stack", &lu_site_init);
4195 ldt->ldt_ops->ldto_device_free(env, d);
4198 class_put_type(type);
4203 static int mdt_stack_init(struct lu_env *env,
4204 struct mdt_device *m,
4205 struct lustre_cfg *cfg,
4206 struct lustre_mount_info *lmi)
4208 struct lu_device *d = &m->mdt_md_dev.md_lu_dev;
4209 struct lu_device *tmp;
4210 struct md_device *md;
4211 struct lu_device *child_lu_dev;
4215 /* init the stack */
4216 tmp = mdt_layer_setup(env, LUSTRE_OSD_NAME, d, cfg);
4218 RETURN(PTR_ERR(tmp));
4220 m->mdt_bottom = lu2dt_dev(tmp);
4222 tmp = mdt_layer_setup(env, LUSTRE_MDD_NAME, d, cfg);
4224 GOTO(out, rc = PTR_ERR(tmp));
4229 tmp = mdt_layer_setup(env, LUSTRE_CMM_NAME, d, cfg);
4231 GOTO(out, rc = PTR_ERR(tmp));
4234 /*set mdd upcall device*/
4235 md_upcall_dev_set(md, lu2md_dev(d));
4238 /*set cmm upcall device*/
4239 md_upcall_dev_set(md, &m->mdt_md_dev);
4241 m->mdt_child = lu2md_dev(d);
4243 /* process setup config */
4244 tmp = &m->mdt_md_dev.md_lu_dev;
4245 rc = tmp->ld_ops->ldo_process_config(env, tmp, cfg);
4249 /* initialize local objects */
4250 child_lu_dev = &m->mdt_child->md_lu_dev;
4252 rc = child_lu_dev->ld_ops->ldo_prepare(env,
4253 &m->mdt_md_dev.md_lu_dev,
4256 /* fini from last known good lu_device */
4258 mdt_stack_fini(env, m, d);
4264 * setup CONFIG_ORIG context, used to access local config log.
4265 * this may need to be rewrite as part of llog rewrite for lu-api.
4267 static int mdt_obd_llog_setup(struct obd_device *obd,
4268 struct lustre_sb_info *lsi)
4272 LASSERT(obd->obd_fsops == NULL);
4274 obd->obd_fsops = fsfilt_get_ops(MT_STR(lsi->lsi_ldd));
4275 if (IS_ERR(obd->obd_fsops))
4276 return PTR_ERR(obd->obd_fsops);
4278 rc = fsfilt_setup(obd, lsi->lsi_srv_mnt->mnt_sb);
4280 fsfilt_put_ops(obd->obd_fsops);
4284 OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
4285 obd->obd_lvfs_ctxt.pwdmnt = lsi->lsi_srv_mnt;
4286 obd->obd_lvfs_ctxt.pwd = lsi->lsi_srv_mnt->mnt_root;
4287 obd->obd_lvfs_ctxt.fs = get_ds();
4289 rc = llog_setup(obd, &obd->obd_olg, LLOG_CONFIG_ORIG_CTXT, obd,
4290 0, NULL, &llog_lvfs_ops);
4292 CERROR("llog_setup() failed: %d\n", rc);
4293 fsfilt_put_ops(obd->obd_fsops);
4299 static void mdt_obd_llog_cleanup(struct obd_device *obd)
4301 struct llog_ctxt *ctxt;
4303 ctxt = llog_get_context(obd, LLOG_CONFIG_ORIG_CTXT);
4307 if (obd->obd_fsops) {
4308 fsfilt_put_ops(obd->obd_fsops);
4309 obd->obd_fsops = NULL;
4313 static void mdt_fini(const struct lu_env *env, struct mdt_device *m)
4315 struct md_device *next = m->mdt_child;
4316 struct lu_device *d = &m->mdt_md_dev.md_lu_dev;
4317 struct lu_site *ls = d->ld_site;
4318 struct obd_device *obd = mdt2obd_dev(m);
4321 target_recovery_fini(obd);
4323 ping_evictor_stop();
4325 mdt_stop_ptlrpc_service(m);
4326 mdt_llog_ctxt_unclone(env, m, LLOG_CHANGELOG_ORIG_CTXT);
4327 mdt_obd_llog_cleanup(obd);
4328 obd_exports_barrier(obd);
4329 obd_zombie_barrier();
4330 #ifdef HAVE_QUOTA_SUPPORT
4331 next->md_ops->mdo_quota.mqo_cleanup(env, next);
4333 lut_fini(env, &m->mdt_lut);
4334 mdt_fs_cleanup(env, m);
4335 upcall_cache_cleanup(m->mdt_identity_cache);
4336 m->mdt_identity_cache = NULL;
4338 if (m->mdt_namespace != NULL) {
4339 ldlm_namespace_free(m->mdt_namespace, NULL,
4340 d->ld_obd->obd_force);
4341 d->ld_obd->obd_namespace = m->mdt_namespace = NULL;
4344 cfs_free_nidlist(&m->mdt_nosquash_nids);
4345 if (m->mdt_nosquash_str) {
4346 OBD_FREE(m->mdt_nosquash_str, m->mdt_nosquash_strlen);
4347 m->mdt_nosquash_str = NULL;
4348 m->mdt_nosquash_strlen = 0;
4351 mdt_seq_fini(env, m);
4352 mdt_seq_fini_cli(m);
4353 mdt_fld_fini(env, m);
4354 sptlrpc_rule_set_free(&m->mdt_sptlrpc_rset);
4356 next->md_ops->mdo_init_capa_ctxt(env, next, 0, 0, 0, NULL);
4357 cfs_timer_disarm(&m->mdt_ck_timer);
4358 mdt_ck_thread_stop(m);
4363 mdt_stack_fini(env, m, md2lu_dev(m->mdt_child));
4365 lprocfs_free_per_client_stats(obd);
4366 lprocfs_free_obd_stats(obd);
4370 struct md_site *mite;
4373 mite = lu_site2md(ls);
4377 LASSERT(cfs_atomic_read(&d->ld_ref) == 0);
4382 static int mdt_adapt_sptlrpc_conf(struct obd_device *obd, int initial)
4384 struct mdt_device *m = mdt_dev(obd->obd_lu_dev);
4385 struct sptlrpc_rule_set tmp_rset;
4388 sptlrpc_rule_set_init(&tmp_rset);
4389 rc = sptlrpc_conf_target_get_rules(obd, &tmp_rset, initial);
4391 CERROR("mdt %s: failed get sptlrpc rules: %d\n",
4396 sptlrpc_target_update_exp_flavor(obd, &tmp_rset);
4398 cfs_write_lock(&m->mdt_sptlrpc_lock);
4399 sptlrpc_rule_set_free(&m->mdt_sptlrpc_rset);
4400 m->mdt_sptlrpc_rset = tmp_rset;
4401 cfs_write_unlock(&m->mdt_sptlrpc_lock);
4406 static void fsoptions_to_mdt_flags(struct mdt_device *m, char *options)
4410 m->mdt_opts.mo_mds_capa = 1;
4411 m->mdt_opts.mo_oss_capa = 1;
4412 #ifdef CONFIG_FS_POSIX_ACL
4413 /* ACLs should be enabled by default (b=13829) */
4414 m->mdt_opts.mo_acl = 1;
4415 LCONSOLE_INFO("Enabling ACL\n");
4417 m->mdt_opts.mo_acl = 0;
4418 LCONSOLE_INFO("Disabling ACL\n");
4427 while (*p && *p != ',')
4431 if ((len == sizeof("user_xattr") - 1) &&
4432 (memcmp(options, "user_xattr", len) == 0)) {
4433 m->mdt_opts.mo_user_xattr = 1;
4434 LCONSOLE_INFO("Enabling user_xattr\n");
4435 } else if ((len == sizeof("nouser_xattr") - 1) &&
4436 (memcmp(options, "nouser_xattr", len) == 0)) {
4437 m->mdt_opts.mo_user_xattr = 0;
4438 LCONSOLE_INFO("Disabling user_xattr\n");
4439 } else if ((len == sizeof("noacl") - 1) &&
4440 (memcmp(options, "noacl", len) == 0)) {
4441 m->mdt_opts.mo_acl = 0;
4442 LCONSOLE_INFO("Disabling ACL\n");
4449 int mdt_postrecov(const struct lu_env *, struct mdt_device *);
4451 static int mdt_init0(const struct lu_env *env, struct mdt_device *m,
4452 struct lu_device_type *ldt, struct lustre_cfg *cfg)
4454 struct mdt_thread_info *info;
4455 struct obd_device *obd;
4456 const char *dev = lustre_cfg_string(cfg, 0);
4457 const char *num = lustre_cfg_string(cfg, 2);
4458 struct lustre_mount_info *lmi = NULL;
4459 struct lustre_sb_info *lsi;
4460 struct lustre_disk_data *ldd;
4462 struct md_site *mite;
4463 const char *identity_upcall = "NONE";
4464 #ifdef HAVE_QUOTA_SUPPORT
4465 struct md_device *next;
4471 md_device_init(&m->mdt_md_dev, ldt);
4473 * Environment (env) might be missing mdt_thread_key values at that
4474 * point, if device is allocated when mdt_thread_key is in QUIESCENT
4477 * Usually device allocation path doesn't use module key values, but
4478 * mdt has to do a lot of work here, so allocate key value.
4480 rc = lu_env_refill((struct lu_env *)env);
4484 info = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
4485 LASSERT(info != NULL);
4487 obd = class_name2obd(dev);
4488 LASSERT(obd != NULL);
4490 m->mdt_max_mdsize = MAX_MD_SIZE;
4491 m->mdt_max_cookiesize = sizeof(struct llog_cookie);
4492 m->mdt_som_conf = 0;
4494 m->mdt_opts.mo_user_xattr = 0;
4495 m->mdt_opts.mo_acl = 0;
4496 m->mdt_opts.mo_cos = MDT_COS_DEFAULT;
4497 lmi = server_get_mount_2(dev);
4499 CERROR("Cannot get mount info for %s!\n", dev);
4502 lsi = s2lsi(lmi->lmi_sb);
4503 fsoptions_to_mdt_flags(m, lsi->lsi_lmd->lmd_opts);
4504 /* CMD is supported only in IAM mode */
4507 node_id = simple_strtol(num, NULL, 10);
4508 if (!(ldd->ldd_flags & LDD_F_IAM_DIR) && node_id) {
4509 CERROR("CMD Operation not allowed in IOP mode\n");
4510 GOTO(err_lmi, rc = -EINVAL);
4512 /* Read recovery timeouts */
4513 if (lsi->lsi_lmd && lsi->lsi_lmd->lmd_recovery_time_soft)
4514 obd->obd_recovery_timeout =
4515 lsi->lsi_lmd->lmd_recovery_time_soft;
4517 if (lsi->lsi_lmd && lsi->lsi_lmd->lmd_recovery_time_hard)
4518 obd->obd_recovery_time_hard =
4519 lsi->lsi_lmd->lmd_recovery_time_hard;
4522 cfs_rwlock_init(&m->mdt_sptlrpc_lock);
4523 sptlrpc_rule_set_init(&m->mdt_sptlrpc_rset);
4525 cfs_spin_lock_init(&m->mdt_ioepoch_lock);
4526 m->mdt_opts.mo_compat_resname = 0;
4527 m->mdt_capa_timeout = CAPA_TIMEOUT;
4528 m->mdt_capa_alg = CAPA_HMAC_ALG_SHA1;
4529 m->mdt_ck_timeout = CAPA_KEY_TIMEOUT;
4530 m->mdt_squash_uid = 0;
4531 m->mdt_squash_gid = 0;
4532 CFS_INIT_LIST_HEAD(&m->mdt_nosquash_nids);
4533 m->mdt_nosquash_str = NULL;
4534 m->mdt_nosquash_strlen = 0;
4535 cfs_init_rwsem(&m->mdt_squash_sem);
4537 OBD_ALLOC_PTR(mite);
4539 GOTO(err_lmi, rc = -ENOMEM);
4543 m->mdt_md_dev.md_lu_dev.ld_ops = &mdt_lu_ops;
4544 m->mdt_md_dev.md_lu_dev.ld_obd = obd;
4545 /* set this lu_device to obd, because error handling need it */
4546 obd->obd_lu_dev = &m->mdt_md_dev.md_lu_dev;
4548 rc = lu_site_init(s, &m->mdt_md_dev.md_lu_dev);
4550 CERROR("Can't init lu_site, rc %d\n", rc);
4551 GOTO(err_free_site, rc);
4554 rc = mdt_procfs_init(m, dev);
4556 CERROR("Can't init MDT lprocfs, rc %d\n", rc);
4557 GOTO(err_fini_proc, rc);
4560 /* set server index */
4561 lu_site2md(s)->ms_node_id = node_id;
4563 /* failover is the default
4564 * FIXME: we do not failout mds0/mgs, which may cause some problems.
4565 * assumed whose ms_node_id == 0 XXX
4567 obd->obd_replayable = 1;
4568 /* No connection accepted until configurations will finish */
4569 obd->obd_no_conn = 1;
4571 if (cfg->lcfg_bufcount > 4 && LUSTRE_CFG_BUFLEN(cfg, 4) > 0) {
4572 char *str = lustre_cfg_string(cfg, 4);
4573 if (strchr(str, 'n')) {
4574 CWARN("%s: recovery disabled\n", obd->obd_name);
4575 obd->obd_replayable = 0;
4579 /* init the stack */
4580 rc = mdt_stack_init((struct lu_env *)env, m, cfg, lmi);
4582 CERROR("Can't init device stack, rc %d\n", rc);
4583 GOTO(err_fini_proc, rc);
4586 rc = lut_init(env, &m->mdt_lut, obd, m->mdt_bottom);
4588 GOTO(err_fini_stack, rc);
4590 rc = mdt_fld_init(env, obd->obd_name, m);
4594 rc = mdt_seq_init(env, obd->obd_name, m);
4596 GOTO(err_fini_fld, rc);
4598 snprintf(info->mti_u.ns_name, sizeof info->mti_u.ns_name,
4599 LUSTRE_MDT_NAME"-%p", m);
4600 m->mdt_namespace = ldlm_namespace_new(obd, info->mti_u.ns_name,
4601 LDLM_NAMESPACE_SERVER,
4602 LDLM_NAMESPACE_GREEDY);
4603 if (m->mdt_namespace == NULL)
4604 GOTO(err_fini_seq, rc = -ENOMEM);
4606 ldlm_register_intent(m->mdt_namespace, mdt_intent_policy);
4607 /* set obd_namespace for compatibility with old code */
4608 obd->obd_namespace = m->mdt_namespace;
4610 /* XXX: to support suppgid for ACL, we enable identity_upcall
4611 * by default, otherwise, maybe got unexpected -EACCESS. */
4612 if (m->mdt_opts.mo_acl)
4613 identity_upcall = MDT_IDENTITY_UPCALL_PATH;
4615 m->mdt_identity_cache = upcall_cache_init(obd->obd_name, identity_upcall,
4616 &mdt_identity_upcall_cache_ops);
4617 if (IS_ERR(m->mdt_identity_cache)) {
4618 rc = PTR_ERR(m->mdt_identity_cache);
4619 m->mdt_identity_cache = NULL;
4620 GOTO(err_free_ns, rc);
4623 cfs_timer_init(&m->mdt_ck_timer, mdt_ck_timer_callback, m);
4625 rc = mdt_ck_thread_start(m);
4627 GOTO(err_free_ns, rc);
4629 rc = mdt_fs_setup(env, m, obd, lsi);
4633 rc = mdt_obd_llog_setup(obd, lsi);
4635 GOTO(err_fs_cleanup, rc);
4637 rc = mdt_llog_ctxt_clone(env, m, LLOG_CHANGELOG_ORIG_CTXT);
4639 GOTO(err_llog_cleanup, rc);
4641 mdt_adapt_sptlrpc_conf(obd, 1);
4643 #ifdef HAVE_QUOTA_SUPPORT
4644 next = m->mdt_child;
4645 rc = next->md_ops->mdo_quota.mqo_setup(env, next, lmi->lmi_mnt);
4647 GOTO(err_llog_cleanup, rc);
4650 server_put_mount_2(dev, lmi->lmi_mnt);
4653 target_recovery_init(&m->mdt_lut, mdt_recovery_handle);
4655 rc = mdt_start_ptlrpc_service(m);
4657 GOTO(err_recovery, rc);
4659 ping_evictor_start();
4661 rc = lu_site_init_finish(s);
4663 GOTO(err_stop_service, rc);
4665 if (obd->obd_recovering == 0)
4666 mdt_postrecov(env, m);
4668 mdt_init_capa_ctxt(env, m);
4670 /* Reduce the initial timeout on an MDS because it doesn't need such
4671 * a long timeout as an OST does. Adaptive timeouts will adjust this
4672 * value appropriately. */
4673 if (ldlm_timeout == LDLM_TIMEOUT_DEFAULT)
4674 ldlm_timeout = MDS_LDLM_TIMEOUT_DEFAULT;
4679 ping_evictor_stop();
4680 mdt_stop_ptlrpc_service(m);
4682 target_recovery_fini(obd);
4683 #ifdef HAVE_QUOTA_SUPPORT
4684 next->md_ops->mdo_quota.mqo_cleanup(env, next);
4687 mdt_llog_ctxt_unclone(env, m, LLOG_CHANGELOG_ORIG_CTXT);
4688 mdt_obd_llog_cleanup(obd);
4690 mdt_fs_cleanup(env, m);
4692 cfs_timer_disarm(&m->mdt_ck_timer);
4693 mdt_ck_thread_stop(m);
4695 upcall_cache_cleanup(m->mdt_identity_cache);
4696 m->mdt_identity_cache = NULL;
4697 ldlm_namespace_free(m->mdt_namespace, NULL, 0);
4698 obd->obd_namespace = m->mdt_namespace = NULL;
4700 mdt_seq_fini(env, m);
4702 mdt_fld_fini(env, m);
4704 lut_fini(env, &m->mdt_lut);
4706 mdt_stack_fini(env, m, md2lu_dev(m->mdt_child));
4714 server_put_mount_2(dev, lmi->lmi_mnt);
4718 /* used by MGS to process specific configurations */
4719 static int mdt_process_config(const struct lu_env *env,
4720 struct lu_device *d, struct lustre_cfg *cfg)
4722 struct mdt_device *m = mdt_dev(d);
4723 struct md_device *md_next = m->mdt_child;
4724 struct lu_device *next = md2lu_dev(md_next);
4728 switch (cfg->lcfg_command) {
4730 struct lprocfs_static_vars lvars;
4731 struct obd_device *obd = d->ld_obd;
4734 * For interoperability between 1.8 and 2.0,
4735 * skip old "mdt.group_upcall" param.
4738 char *param = lustre_cfg_string(cfg, 1);
4739 if (param && !strncmp("mdt.group_upcall", param, 16)) {
4740 CWARN("For 1.8 interoperability, skip this"
4741 " mdt.group_upcall. It is obsolete\n");
4746 lprocfs_mdt_init_vars(&lvars);
4747 rc = class_process_proc_param(PARAM_MDT, lvars.obd_vars,
4749 if (rc > 0 || rc == -ENOSYS)
4750 /* we don't understand; pass it on */
4751 rc = next->ld_ops->ldo_process_config(env, next, cfg);
4756 * Add mdc hook to get first MDT uuid and connect it to
4757 * ls->controller to use for seq manager.
4759 rc = next->ld_ops->ldo_process_config(env, next, cfg);
4761 CERROR("Can't add mdc, rc %d\n", rc);
4763 rc = mdt_seq_init_cli(env, mdt_dev(d), cfg);
4766 /* others are passed further */
4767 rc = next->ld_ops->ldo_process_config(env, next, cfg);
4773 static struct lu_object *mdt_object_alloc(const struct lu_env *env,
4774 const struct lu_object_header *hdr,
4775 struct lu_device *d)
4777 struct mdt_object *mo;
4783 struct lu_object *o;
4784 struct lu_object_header *h;
4786 o = &mo->mot_obj.mo_lu;
4787 h = &mo->mot_header;
4788 lu_object_header_init(h);
4789 lu_object_init(o, h, d);
4790 lu_object_add_top(h, o);
4791 o->lo_ops = &mdt_obj_ops;
4792 cfs_sema_init(&mo->mot_ioepoch_sem, 1);
4798 static int mdt_object_init(const struct lu_env *env, struct lu_object *o,
4799 const struct lu_object_conf *unused)
4801 struct mdt_device *d = mdt_dev(o->lo_dev);
4802 struct lu_device *under;
4803 struct lu_object *below;
4807 CDEBUG(D_INFO, "object init, fid = "DFID"\n",
4808 PFID(lu_object_fid(o)));
4810 under = &d->mdt_child->md_lu_dev;
4811 below = under->ld_ops->ldo_object_alloc(env, o->lo_header, under);
4812 if (below != NULL) {
4813 lu_object_add(o, below);
4820 static void mdt_object_free(const struct lu_env *env, struct lu_object *o)
4822 struct mdt_object *mo = mdt_obj(o);
4823 struct lu_object_header *h;
4827 CDEBUG(D_INFO, "object free, fid = "DFID"\n",
4828 PFID(lu_object_fid(o)));
4831 lu_object_header_fini(h);
4836 static int mdt_object_print(const struct lu_env *env, void *cookie,
4837 lu_printer_t p, const struct lu_object *o)
4839 struct mdt_object *mdto = mdt_obj((struct lu_object *)o);
4840 return (*p)(env, cookie, LUSTRE_MDT_NAME"-object@%p(ioepoch="LPU64" "
4841 "flags="LPX64", epochcount=%d, writecount=%d)",
4842 mdto, mdto->mot_ioepoch, mdto->mot_flags,
4843 mdto->mot_ioepoch_count, mdto->mot_writecount);
4846 static const struct lu_device_operations mdt_lu_ops = {
4847 .ldo_object_alloc = mdt_object_alloc,
4848 .ldo_process_config = mdt_process_config,
4851 static const struct lu_object_operations mdt_obj_ops = {
4852 .loo_object_init = mdt_object_init,
4853 .loo_object_free = mdt_object_free,
4854 .loo_object_print = mdt_object_print
4857 static int mdt_obd_set_info_async(struct obd_export *exp,
4858 __u32 keylen, void *key,
4859 __u32 vallen, void *val,
4860 struct ptlrpc_request_set *set)
4862 struct obd_device *obd = exp->exp_obd;
4868 if (KEY_IS(KEY_SPTLRPC_CONF)) {
4869 rc = mdt_adapt_sptlrpc_conf(obd, 0);
4876 /* mds_connect_internal */
4877 static int mdt_connect_internal(struct obd_export *exp,
4878 struct mdt_device *mdt,
4879 struct obd_connect_data *data)
4882 data->ocd_connect_flags &= MDT_CONNECT_SUPPORTED;
4883 data->ocd_ibits_known &= MDS_INODELOCK_FULL;
4885 /* If no known bits (which should not happen, probably,
4886 as everybody should support LOOKUP and UPDATE bits at least)
4887 revert to compat mode with plain locks. */
4888 if (!data->ocd_ibits_known &&
4889 data->ocd_connect_flags & OBD_CONNECT_IBITS)
4890 data->ocd_connect_flags &= ~OBD_CONNECT_IBITS;
4892 if (!mdt->mdt_opts.mo_acl)
4893 data->ocd_connect_flags &= ~OBD_CONNECT_ACL;
4895 if (!mdt->mdt_opts.mo_user_xattr)
4896 data->ocd_connect_flags &= ~OBD_CONNECT_XATTR;
4898 if (!mdt->mdt_som_conf)
4899 data->ocd_connect_flags &= ~OBD_CONNECT_SOM;
4901 cfs_spin_lock(&exp->exp_lock);
4902 exp->exp_connect_flags = data->ocd_connect_flags;
4903 cfs_spin_unlock(&exp->exp_lock);
4904 data->ocd_version = LUSTRE_VERSION_CODE;
4905 exp->exp_mdt_data.med_ibits_known = data->ocd_ibits_known;
4909 if (mdt->mdt_opts.mo_acl &&
4910 ((exp->exp_connect_flags & OBD_CONNECT_ACL) == 0)) {
4911 CWARN("%s: MDS requires ACL support but client does not\n",
4912 mdt->mdt_md_dev.md_lu_dev.ld_obd->obd_name);
4917 if ((exp->exp_connect_flags & OBD_CONNECT_FID) == 0) {
4918 CWARN("%s: MDS requires FID support, but client not\n",
4919 mdt->mdt_md_dev.md_lu_dev.ld_obd->obd_name);
4923 if (mdt->mdt_som_conf && !exp_connect_som(exp) &&
4924 !(exp->exp_connect_flags & OBD_CONNECT_MDS_MDS)) {
4925 CWARN("%s: MDS has SOM enabled, but client does not support "
4926 "it\n", mdt->mdt_md_dev.md_lu_dev.ld_obd->obd_name);
4933 static int mdt_connect_check_sptlrpc(struct mdt_device *mdt,
4934 struct obd_export *exp,
4935 struct ptlrpc_request *req)
4937 struct sptlrpc_flavor flvr;
4940 if (exp->exp_flvr.sf_rpc == SPTLRPC_FLVR_INVALID) {
4941 cfs_read_lock(&mdt->mdt_sptlrpc_lock);
4942 sptlrpc_target_choose_flavor(&mdt->mdt_sptlrpc_rset,
4946 cfs_read_unlock(&mdt->mdt_sptlrpc_lock);
4948 cfs_spin_lock(&exp->exp_lock);
4950 exp->exp_sp_peer = req->rq_sp_from;
4951 exp->exp_flvr = flvr;
4953 if (exp->exp_flvr.sf_rpc != SPTLRPC_FLVR_ANY &&
4954 exp->exp_flvr.sf_rpc != req->rq_flvr.sf_rpc) {
4955 CERROR("unauthorized rpc flavor %x from %s, "
4956 "expect %x\n", req->rq_flvr.sf_rpc,
4957 libcfs_nid2str(req->rq_peer.nid),
4958 exp->exp_flvr.sf_rpc);
4962 cfs_spin_unlock(&exp->exp_lock);
4964 if (exp->exp_sp_peer != req->rq_sp_from) {
4965 CERROR("RPC source %s doesn't match %s\n",
4966 sptlrpc_part2name(req->rq_sp_from),
4967 sptlrpc_part2name(exp->exp_sp_peer));
4970 rc = sptlrpc_target_export_check(exp, req);
4977 /* mds_connect copy */
4978 static int mdt_obd_connect(const struct lu_env *env,
4979 struct obd_export **exp, struct obd_device *obd,
4980 struct obd_uuid *cluuid,
4981 struct obd_connect_data *data,
4984 struct mdt_thread_info *info;
4985 struct lsd_client_data *lcd;
4986 struct obd_export *lexp;
4987 struct lustre_handle conn = { 0 };
4988 struct mdt_device *mdt;
4989 struct ptlrpc_request *req;
4993 LASSERT(env != NULL);
4994 if (!exp || !obd || !cluuid)
4997 info = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
4998 req = info->mti_pill->rc_req;
4999 mdt = mdt_dev(obd->obd_lu_dev);
5001 rc = class_connect(&conn, obd, cluuid);
5005 lexp = class_conn2export(&conn);
5006 LASSERT(lexp != NULL);
5008 rc = mdt_connect_check_sptlrpc(mdt, lexp, req);
5012 rc = mdt_connect_internal(lexp, mdt, data);
5016 struct mdt_thread_info *mti;
5017 mti = lu_context_key_get(&env->le_ctx,
5019 LASSERT(mti != NULL);
5020 mti->mti_exp = lexp;
5021 memcpy(lcd->lcd_uuid, cluuid, sizeof lcd->lcd_uuid);
5022 lexp->exp_target_data.ted_lcd = lcd;
5023 rc = mdt_client_new(env, mdt);
5025 mdt_export_stats_init(obd, lexp, localdata);
5033 class_disconnect(lexp);
5040 static int mdt_obd_reconnect(const struct lu_env *env,
5041 struct obd_export *exp, struct obd_device *obd,
5042 struct obd_uuid *cluuid,
5043 struct obd_connect_data *data,
5046 struct mdt_thread_info *info;
5047 struct mdt_device *mdt;
5048 struct ptlrpc_request *req;
5052 if (exp == NULL || obd == NULL || cluuid == NULL)
5055 info = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
5056 req = info->mti_pill->rc_req;
5057 mdt = mdt_dev(obd->obd_lu_dev);
5059 rc = mdt_connect_check_sptlrpc(mdt, exp, req);
5063 rc = mdt_connect_internal(exp, mdt_dev(obd->obd_lu_dev), data);
5065 mdt_export_stats_init(obd, exp, localdata);
5069 static int mdt_export_cleanup(struct obd_export *exp)
5071 struct mdt_export_data *med = &exp->exp_mdt_data;
5072 struct obd_device *obd = exp->exp_obd;
5073 struct mdt_device *mdt;
5074 struct mdt_thread_info *info;
5076 CFS_LIST_HEAD(closing_list);
5077 struct mdt_file_data *mfd, *n;
5081 cfs_spin_lock(&med->med_open_lock);
5082 while (!cfs_list_empty(&med->med_open_head)) {
5083 cfs_list_t *tmp = med->med_open_head.next;
5084 mfd = cfs_list_entry(tmp, struct mdt_file_data, mfd_list);
5086 /* Remove mfd handle so it can't be found again.
5087 * We are consuming the mfd_list reference here. */
5088 class_handle_unhash(&mfd->mfd_handle);
5089 cfs_list_move_tail(&mfd->mfd_list, &closing_list);
5091 cfs_spin_unlock(&med->med_open_lock);
5092 mdt = mdt_dev(obd->obd_lu_dev);
5093 LASSERT(mdt != NULL);
5095 rc = lu_env_init(&env, LCT_MD_THREAD);
5099 info = lu_context_key_get(&env.le_ctx, &mdt_thread_key);
5100 LASSERT(info != NULL);
5101 memset(info, 0, sizeof *info);
5102 info->mti_env = &env;
5103 info->mti_mdt = mdt;
5104 info->mti_exp = exp;
5106 if (!cfs_list_empty(&closing_list)) {
5107 struct md_attr *ma = &info->mti_attr;
5111 lmm_size = mdt->mdt_max_mdsize;
5112 OBD_ALLOC(ma->ma_lmm, lmm_size);
5113 if (ma->ma_lmm == NULL)
5114 GOTO(out_lmm, rc = -ENOMEM);
5116 cookie_size = mdt->mdt_max_cookiesize;
5117 OBD_ALLOC(ma->ma_cookie, cookie_size);
5118 if (ma->ma_cookie == NULL)
5119 GOTO(out_cookie, rc = -ENOMEM);
5121 /* Close any open files (which may also cause orphan unlinking). */
5122 cfs_list_for_each_entry_safe(mfd, n, &closing_list, mfd_list) {
5123 cfs_list_del_init(&mfd->mfd_list);
5124 memset(&ma->ma_attr, 0, sizeof(ma->ma_attr));
5125 ma->ma_lmm_size = lmm_size;
5126 ma->ma_cookie_size = cookie_size;
5128 /* It is not for setattr, just tell MDD to send
5129 * DESTROY RPC to OSS if needed */
5130 ma->ma_attr_flags = MDS_CLOSE_CLEANUP;
5131 ma->ma_valid = MA_FLAGS;
5132 mdt_mfd_close(info, mfd);
5134 OBD_FREE(ma->ma_cookie, cookie_size);
5135 ma->ma_cookie = NULL;
5137 OBD_FREE(ma->ma_lmm, lmm_size);
5141 info->mti_mdt = NULL;
5142 /* cleanup client slot early */
5143 /* Do not erase record for recoverable client. */
5144 if (!obd->obd_fail || exp->exp_failed)
5145 mdt_client_del(&env, mdt);
5151 static int mdt_obd_disconnect(struct obd_export *exp)
5157 class_export_get(exp);
5159 rc = server_disconnect_export(exp);
5161 CDEBUG(D_IOCTL, "server disconnect error: %d\n", rc);
5163 rc = mdt_export_cleanup(exp);
5164 class_export_put(exp);
5168 /* FIXME: Can we avoid using these two interfaces? */
5169 static int mdt_init_export(struct obd_export *exp)
5171 struct mdt_export_data *med = &exp->exp_mdt_data;
5175 CFS_INIT_LIST_HEAD(&med->med_open_head);
5176 cfs_spin_lock_init(&med->med_open_lock);
5177 cfs_sema_init(&med->med_idmap_sem, 1);
5178 med->med_idmap = NULL;
5179 cfs_spin_lock(&exp->exp_lock);
5180 exp->exp_connecting = 1;
5181 cfs_spin_unlock(&exp->exp_lock);
5182 rc = ldlm_init_export(exp);
5184 CERROR("Error %d while initializing export\n", rc);
5188 static int mdt_destroy_export(struct obd_export *exp)
5190 struct mdt_export_data *med;
5194 med = &exp->exp_mdt_data;
5195 if (exp_connect_rmtclient(exp))
5196 mdt_cleanup_idmap(&exp->exp_mdt_data);
5198 target_destroy_export(exp);
5199 ldlm_destroy_export(exp);
5201 LASSERT(cfs_list_empty(&exp->exp_outstanding_replies));
5202 LASSERT(cfs_list_empty(&exp->exp_mdt_data.med_open_head));
5203 if (obd_uuid_equals(&exp->exp_client_uuid, &exp->exp_obd->obd_uuid))
5206 lut_client_free(exp);
5210 static void mdt_allow_cli(struct mdt_device *m, unsigned int flag)
5212 if (flag & CONFIG_LOG)
5213 cfs_set_bit(MDT_FL_CFGLOG, &m->mdt_state);
5215 /* also notify active event */
5216 if (flag & CONFIG_SYNC)
5217 cfs_set_bit(MDT_FL_SYNCED, &m->mdt_state);
5219 if (cfs_test_bit(MDT_FL_CFGLOG, &m->mdt_state) &&
5220 cfs_test_bit(MDT_FL_SYNCED, &m->mdt_state)) {
5221 struct obd_device *obd = m->mdt_md_dev.md_lu_dev.ld_obd;
5223 /* Open for clients */
5224 if (obd->obd_no_conn) {
5225 cfs_spin_lock_bh(&obd->obd_processing_task_lock);
5226 obd->obd_no_conn = 0;
5227 cfs_spin_unlock_bh(&obd->obd_processing_task_lock);
5232 static int mdt_upcall(const struct lu_env *env, struct md_device *md,
5233 enum md_upcall_event ev, void *data)
5235 struct mdt_device *m = mdt_dev(&md->md_lu_dev);
5236 struct md_device *next = m->mdt_child;
5237 struct mdt_thread_info *mti;
5243 rc = next->md_ops->mdo_maxsize_get(env, next,
5245 &m->mdt_max_cookiesize);
5246 CDEBUG(D_INFO, "get max mdsize %d max cookiesize %d\n",
5247 m->mdt_max_mdsize, m->mdt_max_cookiesize);
5248 mdt_allow_cli(m, CONFIG_SYNC);
5250 (*(__u64 *)data) = m->mdt_lut.lut_mount_count;
5253 mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
5254 mti->mti_no_need_trans = 1;
5255 CDEBUG(D_INFO, "disable mdt trans for this thread\n");
5258 /* Check that MDT is not yet configured */
5259 LASSERT(!cfs_test_bit(MDT_FL_CFGLOG, &m->mdt_state));
5261 #ifdef HAVE_QUOTA_SUPPORT
5263 if (md->md_lu_dev.ld_obd->obd_recovering == 0 &&
5264 likely(md->md_lu_dev.ld_obd->obd_stopping == 0))
5265 next->md_ops->mdo_quota.mqo_recovery(env, next);
5269 CERROR("invalid event\n");
5276 static int mdt_obd_notify(struct obd_device *host,
5277 struct obd_device *watched,
5278 enum obd_notify_event ev, void *data)
5280 struct mdt_device *mdt = mdt_dev(host->obd_lu_dev);
5281 #ifdef HAVE_QUOTA_SUPPORT
5282 struct md_device *next = mdt->mdt_child;
5287 case OBD_NOTIFY_CONFIG:
5288 mdt_allow_cli(mdt, (unsigned long)data);
5290 #ifdef HAVE_QUOTA_SUPPORT
5291 /* quota_type has been processed, we can now handle
5292 * incoming quota requests */
5293 next->md_ops->mdo_quota.mqo_notify(NULL, next);
5297 CDEBUG(D_INFO, "Unhandled notification %#x\n", ev);
5302 static int mdt_rpc_fid2path(struct mdt_thread_info *info, void *key,
5303 void *val, int vallen)
5305 struct mdt_device *mdt = mdt_dev(info->mti_exp->exp_obd->obd_lu_dev);
5306 struct getinfo_fid2path *fpout, *fpin;
5309 fpin = key + cfs_size_round(sizeof(KEY_FID2PATH));
5312 if (ptlrpc_req_need_swab(info->mti_pill->rc_req))
5313 lustre_swab_fid2path(fpin);
5315 memcpy(fpout, fpin, sizeof(*fpin));
5316 if (fpout->gf_pathlen != vallen - sizeof(*fpin))
5319 rc = mdt_fid2path(info->mti_env, mdt, fpout);
5323 static int mdt_fid2path(const struct lu_env *env, struct mdt_device *mdt,
5324 struct getinfo_fid2path *fp)
5326 struct mdt_object *obj;
5330 CDEBUG(D_IOCTL, "path get "DFID" from "LPU64" #%d\n",
5331 PFID(&fp->gf_fid), fp->gf_recno, fp->gf_linkno);
5333 if (!fid_is_sane(&fp->gf_fid))
5336 obj = mdt_object_find(env, mdt, &fp->gf_fid);
5337 if (obj == NULL || IS_ERR(obj)) {
5338 CDEBUG(D_IOCTL, "no object "DFID": %ld\n",PFID(&fp->gf_fid),
5343 rc = lu_object_exists(&obj->mot_obj.mo_lu);
5349 mdt_object_put(env, obj);
5350 CDEBUG(D_IOCTL, "nonlocal object "DFID": %d\n",
5351 PFID(&fp->gf_fid), rc);
5355 rc = mo_path(env, md_object_next(&obj->mot_obj), fp->gf_path,
5356 fp->gf_pathlen, &fp->gf_recno, &fp->gf_linkno);
5357 mdt_object_put(env, obj);
5362 static int mdt_get_info(struct mdt_thread_info *info)
5364 struct ptlrpc_request *req = mdt_info_req(info);
5372 key = req_capsule_client_get(info->mti_pill, &RMF_GETINFO_KEY);
5374 CDEBUG(D_IOCTL, "No GETINFO key");
5377 keylen = req_capsule_get_size(info->mti_pill, &RMF_GETINFO_KEY,
5380 vallen = req_capsule_client_get(info->mti_pill, &RMF_GETINFO_VALLEN);
5381 if (vallen == NULL) {
5382 CDEBUG(D_IOCTL, "Unable to get RMF_GETINFO_VALLEN buffer");
5386 req_capsule_set_size(info->mti_pill, &RMF_GETINFO_VAL, RCL_SERVER,
5388 rc = req_capsule_server_pack(info->mti_pill);
5389 valout = req_capsule_server_get(info->mti_pill, &RMF_GETINFO_VAL);
5390 if (valout == NULL) {
5391 CDEBUG(D_IOCTL, "Unable to get get-info RPC out buffer");
5395 if (KEY_IS(KEY_FID2PATH))
5396 rc = mdt_rpc_fid2path(info, key, valout, *vallen);
5400 lustre_msg_set_status(req->rq_repmsg, rc);
5405 /* Pass the ioc down */
5406 static int mdt_ioc_child(struct lu_env *env, struct mdt_device *mdt,
5407 unsigned int cmd, int len, void *data)
5409 struct lu_context ioctl_session;
5410 struct md_device *next = mdt->mdt_child;
5414 rc = lu_context_init(&ioctl_session, LCT_SESSION);
5417 ioctl_session.lc_thread = (struct ptlrpc_thread *)cfs_current();
5418 lu_context_enter(&ioctl_session);
5419 env->le_ses = &ioctl_session;
5421 LASSERT(next->md_ops->mdo_iocontrol);
5422 rc = next->md_ops->mdo_iocontrol(env, next, cmd, len, data);
5424 lu_context_exit(&ioctl_session);
5425 lu_context_fini(&ioctl_session);
5429 static int mdt_ioc_version_get(struct mdt_thread_info *mti, void *karg)
5431 struct obd_ioctl_data *data = karg;
5432 struct lu_fid *fid = (struct lu_fid *)data->ioc_inlbuf1;
5434 struct mdt_object *obj;
5435 struct mdt_lock_handle *lh;
5438 CDEBUG(D_IOCTL, "getting version for "DFID"\n", PFID(fid));
5439 if (!fid_is_sane(fid))
5442 lh = &mti->mti_lh[MDT_LH_PARENT];
5443 mdt_lock_reg_init(lh, LCK_CR);
5445 obj = mdt_object_find_lock(mti, fid, lh, MDS_INODELOCK_UPDATE);
5447 RETURN(PTR_ERR(obj));
5449 rc = mdt_object_exists(obj);
5453 * before calling version get the correct MDS should be
5454 * fid, this is error to find remote object here
5456 CERROR("nonlocal object "DFID"\n", PFID(fid));
5458 version = mo_version_get(mti->mti_env, mdt_object_child(obj));
5459 *(__u64 *)data->ioc_inlbuf2 = version;
5462 mdt_object_unlock_put(mti, obj, lh, 1);
5466 /* ioctls on obd dev */
5467 static int mdt_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
5468 void *karg, void *uarg)
5471 struct obd_device *obd = exp->exp_obd;
5472 struct mdt_device *mdt = mdt_dev(obd->obd_lu_dev);
5473 struct dt_device *dt = mdt->mdt_bottom;
5477 CDEBUG(D_IOCTL, "handling ioctl cmd %#x\n", cmd);
5478 rc = lu_env_init(&env, LCT_MD_THREAD);
5484 rc = mdt_device_sync(&env, mdt);
5486 case OBD_IOC_SET_READONLY:
5487 dt->dd_ops->dt_ro(&env, dt);
5489 case OBD_IOC_ABORT_RECOVERY:
5490 CERROR("Aborting recovery for device %s\n", obd->obd_name);
5491 target_stop_recovery_thread(obd);
5494 case OBD_IOC_CHANGELOG_REG:
5495 case OBD_IOC_CHANGELOG_DEREG:
5496 case OBD_IOC_CHANGELOG_CLEAR:
5497 rc = mdt_ioc_child(&env, mdt, cmd, len, karg);
5499 case OBD_IOC_GET_OBJ_VERSION: {
5500 struct mdt_thread_info *mti;
5501 mti = lu_context_key_get(&env.le_ctx, &mdt_thread_key);
5502 memset(mti, 0, sizeof *mti);
5503 mti->mti_env = &env;
5507 rc = mdt_ioc_version_get(mti, karg);
5511 CERROR("Not supported cmd = %d for device %s\n",
5512 cmd, obd->obd_name);
5520 int mdt_postrecov(const struct lu_env *env, struct mdt_device *mdt)
5522 struct lu_device *ld = md2lu_dev(mdt->mdt_child);
5523 struct obd_device *obd = mdt2obd_dev(mdt);
5524 #ifdef HAVE_QUOTA_SUPPORT
5525 struct md_device *next = mdt->mdt_child;
5530 rc = ld->ld_ops->ldo_recovery_complete(env, ld);
5531 #ifdef HAVE_QUOTA_SUPPORT
5532 if (likely(obd->obd_stopping == 0))
5533 next->md_ops->mdo_quota.mqo_recovery(env, next);
5538 int mdt_obd_postrecov(struct obd_device *obd)
5543 rc = lu_env_init(&env, LCT_MD_THREAD);
5546 rc = mdt_postrecov(&env, mdt_dev(obd->obd_lu_dev));
5552 * Send a copytool req to a client
5553 * Note this sends a request RPC from a server (MDT) to a client (MDC),
5554 * backwards of normal comms.
5556 int mdt_hsm_copytool_send(struct obd_export *exp)
5559 struct hsm_action_list *hal;
5560 struct hsm_action_item *hai;
5564 CWARN("%s: writing to mdc at %s\n", exp->exp_obd->obd_name,
5565 libcfs_nid2str(exp->exp_connection->c_peer.nid));
5567 len = sizeof(*lh) + sizeof(*hal) + MTI_NAME_MAXLEN +
5568 /* for mockup below */ 2 * cfs_size_round(sizeof(*hai));
5573 lh->kuc_magic = KUC_MAGIC;
5574 lh->kuc_transport = KUC_TRANSPORT_HSM;
5575 lh->kuc_msgtype = HMT_ACTION_LIST;
5576 lh->kuc_msglen = len;
5578 hal = (struct hsm_action_list *)(lh + 1);
5579 hal->hal_version = HAL_VERSION;
5580 hal->hal_archive_num = 1;
5581 obd_uuid2fsname(hal->hal_fsname, exp->exp_obd->obd_name,
5584 /* mock up an action list */
5586 hai = hai_zero(hal);
5587 hai->hai_action = HSMA_ARCHIVE;
5588 hai->hai_fid.f_oid = 0xA00A;
5589 hai->hai_len = sizeof(*hai);
5590 hai = hai_next(hai);
5591 hai->hai_action = HSMA_RESTORE;
5592 hai->hai_fid.f_oid = 0xB00B;
5593 hai->hai_len = sizeof(*hai);
5595 /* Uses the ldlm reverse import; this rpc will be seen by
5596 the ldlm_callback_handler */
5597 rc = do_set_info_async(exp->exp_imp_reverse,
5598 LDLM_SET_INFO, LUSTRE_OBD_VERSION,
5599 sizeof(KEY_HSM_COPYTOOL_SEND),
5600 KEY_HSM_COPYTOOL_SEND,
5608 static struct obd_ops mdt_obd_device_ops = {
5609 .o_owner = THIS_MODULE,
5610 .o_set_info_async = mdt_obd_set_info_async,
5611 .o_connect = mdt_obd_connect,
5612 .o_reconnect = mdt_obd_reconnect,
5613 .o_disconnect = mdt_obd_disconnect,
5614 .o_init_export = mdt_init_export,
5615 .o_destroy_export = mdt_destroy_export,
5616 .o_iocontrol = mdt_iocontrol,
5617 .o_postrecov = mdt_obd_postrecov,
5618 .o_notify = mdt_obd_notify
5621 static struct lu_device* mdt_device_fini(const struct lu_env *env,
5622 struct lu_device *d)
5624 struct mdt_device *m = mdt_dev(d);
5631 static struct lu_device *mdt_device_free(const struct lu_env *env,
5632 struct lu_device *d)
5634 struct mdt_device *m = mdt_dev(d);
5637 md_device_fini(&m->mdt_md_dev);
5642 static struct lu_device *mdt_device_alloc(const struct lu_env *env,
5643 struct lu_device_type *t,
5644 struct lustre_cfg *cfg)
5646 struct lu_device *l;
5647 struct mdt_device *m;
5653 l = &m->mdt_md_dev.md_lu_dev;
5654 rc = mdt_init0(env, m, t, cfg);
5656 mdt_device_free(env, l);
5660 md_upcall_init(&m->mdt_md_dev, mdt_upcall);
5662 l = ERR_PTR(-ENOMEM);
5666 /* context key constructor/destructor: mdt_key_init, mdt_key_fini */
5667 LU_KEY_INIT_FINI(mdt, struct mdt_thread_info);
5669 /* context key: mdt_thread_key */
5670 LU_CONTEXT_KEY_DEFINE(mdt, LCT_MD_THREAD);
5672 /* context key constructor/destructor: mdt_txn_key_init, mdt_txn_key_fini */
5673 LU_KEY_INIT_FINI(mdt_txn, struct mdt_txn_info);
5675 struct lu_context_key mdt_txn_key = {
5676 .lct_tags = LCT_TX_HANDLE,
5677 .lct_init = mdt_txn_key_init,
5678 .lct_fini = mdt_txn_key_fini
5681 struct md_ucred *mdt_ucred(const struct mdt_thread_info *info)
5683 return md_ucred(info->mti_env);
5687 * Enable/disable COS (Commit On Sharing).
5689 * Set/Clear the COS flag in mdt options.
5691 * \param mdt mdt device
5692 * \param val 0 disables COS, other values enable COS
5694 void mdt_enable_cos(struct mdt_device *mdt, int val)
5699 mdt->mdt_opts.mo_cos = !!val;
5700 rc = lu_env_init(&env, LCT_MD_THREAD);
5701 if (unlikely(rc != 0)) {
5702 CWARN("lu_env initialization failed with rc = %d,"
5703 "cannot sync\n", rc);
5706 mdt_device_sync(&env, mdt);
5711 * Check COS (Commit On Sharing) status.
5713 * Return COS flag status.
5715 * \param mdt mdt device
5717 int mdt_cos_is_enabled(struct mdt_device *mdt)
5719 return mdt->mdt_opts.mo_cos != 0;
5722 /* type constructor/destructor: mdt_type_init, mdt_type_fini */
5723 LU_TYPE_INIT_FINI(mdt, &mdt_thread_key, &mdt_txn_key);
5725 static struct lu_device_type_operations mdt_device_type_ops = {
5726 .ldto_init = mdt_type_init,
5727 .ldto_fini = mdt_type_fini,
5729 .ldto_start = mdt_type_start,
5730 .ldto_stop = mdt_type_stop,
5732 .ldto_device_alloc = mdt_device_alloc,
5733 .ldto_device_free = mdt_device_free,
5734 .ldto_device_fini = mdt_device_fini
5737 static struct lu_device_type mdt_device_type = {
5738 .ldt_tags = LU_DEVICE_MD,
5739 .ldt_name = LUSTRE_MDT_NAME,
5740 .ldt_ops = &mdt_device_type_ops,
5741 .ldt_ctx_tags = LCT_MD_THREAD
5744 static struct lu_local_obj_desc mdt_last_recv = {
5745 .llod_name = LAST_RCVD,
5746 .llod_oid = MDT_LAST_RECV_OID,
5750 static int __init mdt_mod_init(void)
5752 struct lprocfs_static_vars lvars;
5755 llo_local_obj_register(&mdt_last_recv);
5757 if (mdt_num_threads > 0) {
5758 if (mdt_num_threads > MDT_MAX_THREADS)
5759 mdt_num_threads = MDT_MAX_THREADS;
5760 if (mdt_num_threads < MDT_MIN_THREADS)
5761 mdt_num_threads = MDT_MIN_THREADS;
5762 mdt_max_threads = mdt_min_threads = mdt_num_threads;
5764 mdt_max_threads = MDT_MAX_THREADS;
5765 mdt_min_threads = MDT_MIN_THREADS;
5766 if (mdt_min_threads < MDT_NUM_THREADS)
5767 mdt_min_threads = MDT_NUM_THREADS;
5770 lprocfs_mdt_init_vars(&lvars);
5771 rc = class_register_type(&mdt_obd_device_ops, NULL,
5772 lvars.module_vars, LUSTRE_MDT_NAME,
5778 static void __exit mdt_mod_exit(void)
5780 llo_local_obj_unregister(&mdt_last_recv);
5781 class_unregister_type(LUSTRE_MDT_NAME);
5785 #define DEF_HNDL(prefix, base, suffix, flags, opc, fn, fmt) \
5786 [prefix ## _ ## opc - prefix ## _ ## base] = { \
5788 .mh_fail_id = OBD_FAIL_ ## prefix ## _ ## opc ## suffix, \
5789 .mh_opc = prefix ## _ ## opc, \
5790 .mh_flags = flags, \
5795 #define DEF_MDT_HNDL(flags, name, fn, fmt) \
5796 DEF_HNDL(MDS, GETATTR, _NET, flags, name, fn, fmt)
5798 #define DEF_SEQ_HNDL(flags, name, fn, fmt) \
5799 DEF_HNDL(SEQ, QUERY, _NET, flags, name, fn, fmt)
5801 #define DEF_FLD_HNDL(flags, name, fn, fmt) \
5802 DEF_HNDL(FLD, QUERY, _NET, flags, name, fn, fmt)
5804 * Request with a format known in advance
5806 #define DEF_MDT_HNDL_F(flags, name, fn) \
5807 DEF_HNDL(MDS, GETATTR, _NET, flags, name, fn, &RQF_MDS_ ## name)
5809 #define DEF_SEQ_HNDL_F(flags, name, fn) \
5810 DEF_HNDL(SEQ, QUERY, _NET, flags, name, fn, &RQF_SEQ_ ## name)
5812 #define DEF_FLD_HNDL_F(flags, name, fn) \
5813 DEF_HNDL(FLD, QUERY, _NET, flags, name, fn, &RQF_FLD_ ## name)
5815 * Request with a format we do not yet know
5817 #define DEF_MDT_HNDL_0(flags, name, fn) \
5818 DEF_HNDL(MDS, GETATTR, _NET, flags, name, fn, NULL)
5820 static struct mdt_handler mdt_mds_ops[] = {
5821 DEF_MDT_HNDL_F(0, CONNECT, mdt_connect),
5822 DEF_MDT_HNDL_F(0, DISCONNECT, mdt_disconnect),
5823 DEF_MDT_HNDL (0, SET_INFO, mdt_set_info,
5825 DEF_MDT_HNDL_F(0, GET_INFO, mdt_get_info),
5826 DEF_MDT_HNDL_F(0 |HABEO_REFERO, GETSTATUS, mdt_getstatus),
5827 DEF_MDT_HNDL_F(HABEO_CORPUS, GETATTR, mdt_getattr),
5828 DEF_MDT_HNDL_F(HABEO_CORPUS|HABEO_REFERO, GETATTR_NAME, mdt_getattr_name),
5829 DEF_MDT_HNDL_F(HABEO_CORPUS, GETXATTR, mdt_getxattr),
5830 DEF_MDT_HNDL_F(0 |HABEO_REFERO, STATFS, mdt_statfs),
5831 DEF_MDT_HNDL_F(0 |MUTABOR, REINT, mdt_reint),
5832 DEF_MDT_HNDL_F(HABEO_CORPUS, CLOSE, mdt_close),
5833 DEF_MDT_HNDL_F(HABEO_CORPUS, DONE_WRITING, mdt_done_writing),
5834 DEF_MDT_HNDL_F(0 |HABEO_REFERO, PIN, mdt_pin),
5835 DEF_MDT_HNDL_0(0, SYNC, mdt_sync),
5836 DEF_MDT_HNDL_F(HABEO_CORPUS|HABEO_REFERO, IS_SUBDIR, mdt_is_subdir),
5837 #ifdef HAVE_QUOTA_SUPPORT
5838 DEF_MDT_HNDL_F(0, QUOTACHECK, mdt_quotacheck_handle),
5839 DEF_MDT_HNDL_F(0, QUOTACTL, mdt_quotactl_handle)
5843 #define DEF_OBD_HNDL(flags, name, fn) \
5844 DEF_HNDL(OBD, PING, _NET, flags, name, fn, NULL)
5847 static struct mdt_handler mdt_obd_ops[] = {
5848 DEF_OBD_HNDL(0, PING, mdt_obd_ping),
5849 DEF_OBD_HNDL(0, LOG_CANCEL, mdt_obd_log_cancel),
5850 DEF_OBD_HNDL(0, QC_CALLBACK, mdt_obd_qc_callback)
5853 #define DEF_DLM_HNDL_0(flags, name, fn) \
5854 DEF_HNDL(LDLM, ENQUEUE, , flags, name, fn, NULL)
5855 #define DEF_DLM_HNDL_F(flags, name, fn) \
5856 DEF_HNDL(LDLM, ENQUEUE, , flags, name, fn, &RQF_LDLM_ ## name)
5858 static struct mdt_handler mdt_dlm_ops[] = {
5859 DEF_DLM_HNDL_F(HABEO_CLAVIS, ENQUEUE, mdt_enqueue),
5860 DEF_DLM_HNDL_0(HABEO_CLAVIS, CONVERT, mdt_convert),
5861 DEF_DLM_HNDL_0(0, BL_CALLBACK, mdt_bl_callback),
5862 DEF_DLM_HNDL_0(0, CP_CALLBACK, mdt_cp_callback)
5865 #define DEF_LLOG_HNDL(flags, name, fn) \
5866 DEF_HNDL(LLOG, ORIGIN_HANDLE_CREATE, _NET, flags, name, fn, NULL)
5868 static struct mdt_handler mdt_llog_ops[] = {
5869 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_CREATE, mdt_llog_create),
5870 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_NEXT_BLOCK, mdt_llog_next_block),
5871 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_READ_HEADER, mdt_llog_read_header),
5872 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_WRITE_REC, NULL),
5873 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_CLOSE, NULL),
5874 DEF_LLOG_HNDL(0, ORIGIN_CONNECT, NULL),
5875 DEF_LLOG_HNDL(0, CATINFO, NULL),
5876 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_PREV_BLOCK, mdt_llog_prev_block),
5877 DEF_LLOG_HNDL(0, ORIGIN_HANDLE_DESTROY, mdt_llog_destroy),
5880 #define DEF_SEC_CTX_HNDL(name, fn) \
5881 DEF_HNDL(SEC_CTX, INIT, _NET, 0, name, fn, NULL)
5883 static struct mdt_handler mdt_sec_ctx_ops[] = {
5884 DEF_SEC_CTX_HNDL(INIT, mdt_sec_ctx_handle),
5885 DEF_SEC_CTX_HNDL(INIT_CONT, mdt_sec_ctx_handle),
5886 DEF_SEC_CTX_HNDL(FINI, mdt_sec_ctx_handle)
5889 static struct mdt_opc_slice mdt_regular_handlers[] = {
5891 .mos_opc_start = MDS_GETATTR,
5892 .mos_opc_end = MDS_LAST_OPC,
5893 .mos_hs = mdt_mds_ops
5896 .mos_opc_start = OBD_PING,
5897 .mos_opc_end = OBD_LAST_OPC,
5898 .mos_hs = mdt_obd_ops
5901 .mos_opc_start = LDLM_ENQUEUE,
5902 .mos_opc_end = LDLM_LAST_OPC,
5903 .mos_hs = mdt_dlm_ops
5906 .mos_opc_start = LLOG_ORIGIN_HANDLE_CREATE,
5907 .mos_opc_end = LLOG_LAST_OPC,
5908 .mos_hs = mdt_llog_ops
5911 .mos_opc_start = SEC_CTX_INIT,
5912 .mos_opc_end = SEC_LAST_OPC,
5913 .mos_hs = mdt_sec_ctx_ops
5920 static struct mdt_handler mdt_readpage_ops[] = {
5921 DEF_MDT_HNDL_F(0, CONNECT, mdt_connect),
5922 DEF_MDT_HNDL_F(HABEO_CORPUS|HABEO_REFERO, READPAGE, mdt_readpage),
5923 #ifdef HAVE_SPLIT_SUPPORT
5924 DEF_MDT_HNDL_F(HABEO_CORPUS|HABEO_REFERO, WRITEPAGE, mdt_writepage),
5928 * XXX: this is ugly and should be fixed one day, see mdc_close() for
5929 * detailed comments. --umka
5931 DEF_MDT_HNDL_F(HABEO_CORPUS, CLOSE, mdt_close),
5932 DEF_MDT_HNDL_F(HABEO_CORPUS, DONE_WRITING, mdt_done_writing),
5935 static struct mdt_opc_slice mdt_readpage_handlers[] = {
5937 .mos_opc_start = MDS_GETATTR,
5938 .mos_opc_end = MDS_LAST_OPC,
5939 .mos_hs = mdt_readpage_ops
5946 static struct mdt_handler mdt_xmds_ops[] = {
5947 DEF_MDT_HNDL_F(0, CONNECT, mdt_connect),
5948 DEF_MDT_HNDL_F(HABEO_CORPUS , GETATTR, mdt_getattr),
5949 DEF_MDT_HNDL_F(0 | MUTABOR , REINT, mdt_reint),
5950 DEF_MDT_HNDL_F(HABEO_CORPUS|HABEO_REFERO, IS_SUBDIR, mdt_is_subdir),
5953 static struct mdt_opc_slice mdt_xmds_handlers[] = {
5955 .mos_opc_start = MDS_GETATTR,
5956 .mos_opc_end = MDS_LAST_OPC,
5957 .mos_hs = mdt_xmds_ops
5960 .mos_opc_start = OBD_PING,
5961 .mos_opc_end = OBD_LAST_OPC,
5962 .mos_hs = mdt_obd_ops
5965 .mos_opc_start = SEC_CTX_INIT,
5966 .mos_opc_end = SEC_LAST_OPC,
5967 .mos_hs = mdt_sec_ctx_ops
5974 static struct mdt_handler mdt_seq_ops[] = {
5975 DEF_SEQ_HNDL_F(0, QUERY, (int (*)(struct mdt_thread_info *))seq_query)
5978 static struct mdt_opc_slice mdt_seq_handlers[] = {
5980 .mos_opc_start = SEQ_QUERY,
5981 .mos_opc_end = SEQ_LAST_OPC,
5982 .mos_hs = mdt_seq_ops
5989 static struct mdt_handler mdt_fld_ops[] = {
5990 DEF_FLD_HNDL_F(0, QUERY, (int (*)(struct mdt_thread_info *))fld_query)
5993 static struct mdt_opc_slice mdt_fld_handlers[] = {
5995 .mos_opc_start = FLD_QUERY,
5996 .mos_opc_end = FLD_LAST_OPC,
5997 .mos_hs = mdt_fld_ops
6004 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
6005 MODULE_DESCRIPTION("Lustre Meta-data Target ("LUSTRE_MDT_NAME")");
6006 MODULE_LICENSE("GPL");
6008 CFS_MODULE_PARM(mdt_num_threads, "ul", ulong, 0444,
6009 "number of mdt service threads to start");
6011 cfs_module(mdt, "0.2.0", mdt_mod_init, mdt_mod_exit);