4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/osd/osd_handler.c
34 * Top-level entry points into osd module
36 * Author: Nikita Danilov <nikita@clusterfs.com>
37 * Pravin Shelar <pravin.shelar@sun.com> : Added fid in dirent
40 #define DEBUG_SUBSYSTEM S_OSD
42 #include <linux/kallsyms.h>
43 #include <linux/module.h>
44 #include <linux/user_namespace.h>
45 #ifdef HAVE_UIDGID_HEADER
46 # include <linux/uidgid.h>
49 /* prerequisite for linux/xattr.h */
50 #include <linux/types.h>
51 /* prerequisite for linux/xattr.h */
53 /* XATTR_{REPLACE,CREATE} */
54 #include <linux/xattr.h>
56 #include <ldiskfs/ldiskfs.h>
57 #include <ldiskfs/xattr.h>
58 #include <ldiskfs/ldiskfs_extents.h>
61 * struct OBD_{ALLOC,FREE}*()
64 #include <obd_support.h>
65 /* struct ptlrpc_thread */
66 #include <lustre_net.h>
67 #include <lustre_fid.h>
69 #include <uapi/linux/lustre/lustre_param.h>
71 #include "osd_internal.h"
72 #include "osd_dynlocks.h"
74 /* llo_* api support */
75 #include <md_object.h>
76 #include <lustre_quota.h>
78 #include <lustre_linkea.h>
81 module_param(ldiskfs_pdo, int, 0644);
82 MODULE_PARM_DESC(ldiskfs_pdo, "ldiskfs with parallel directory operations");
84 int ldiskfs_track_declares_assert;
85 module_param(ldiskfs_track_declares_assert, int, 0644);
86 MODULE_PARM_DESC(ldiskfs_track_declares_assert, "LBUG during tracking of declares");
88 /* Slab to allocate dynlocks */
89 struct kmem_cache *dynlock_cachep;
91 /* Slab to allocate osd_it_ea */
92 struct kmem_cache *osd_itea_cachep;
94 static struct lu_kmem_descr ldiskfs_caches[] = {
96 .ckd_cache = &dynlock_cachep,
97 .ckd_name = "dynlock_cache",
98 .ckd_size = sizeof(struct dynlock_handle)
101 .ckd_cache = &osd_itea_cachep,
102 .ckd_name = "osd_itea_cache",
103 .ckd_size = sizeof(struct osd_it_ea)
110 static const char dot[] = ".";
111 static const char dotdot[] = "..";
113 static const struct lu_object_operations osd_lu_obj_ops;
114 static const struct dt_object_operations osd_obj_ops;
115 static const struct dt_object_operations osd_obj_otable_it_ops;
116 static const struct dt_index_operations osd_index_iam_ops;
117 static const struct dt_index_operations osd_index_ea_ops;
119 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
120 const struct lu_fid *fid);
121 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
122 struct osd_device *osd);
124 int osd_trans_declare_op2rb[] = {
125 [OSD_OT_ATTR_SET] = OSD_OT_ATTR_SET,
126 [OSD_OT_PUNCH] = OSD_OT_MAX,
127 [OSD_OT_XATTR_SET] = OSD_OT_XATTR_SET,
128 [OSD_OT_CREATE] = OSD_OT_DESTROY,
129 [OSD_OT_DESTROY] = OSD_OT_CREATE,
130 [OSD_OT_REF_ADD] = OSD_OT_REF_DEL,
131 [OSD_OT_REF_DEL] = OSD_OT_REF_ADD,
132 [OSD_OT_WRITE] = OSD_OT_WRITE,
133 [OSD_OT_INSERT] = OSD_OT_DELETE,
134 [OSD_OT_DELETE] = OSD_OT_INSERT,
135 [OSD_OT_QUOTA] = OSD_OT_MAX,
138 static int osd_has_index(const struct osd_object *obj)
140 return obj->oo_dt.do_index_ops != NULL;
143 static int osd_object_invariant(const struct lu_object *l)
145 return osd_invariant(osd_obj(l));
149 * Concurrency: doesn't matter
151 static int osd_is_write_locked(const struct lu_env *env, struct osd_object *o)
153 struct osd_thread_info *oti = osd_oti_get(env);
154 return oti->oti_w_locks > 0 && o->oo_owner == env;
158 * Concurrency: doesn't access mutable data
160 static int osd_root_get(const struct lu_env *env,
161 struct dt_device *dev, struct lu_fid *f)
163 lu_local_obj_fid(f, OSD_FS_ROOT_OID);
168 * the following set of functions are used to maintain per-thread
169 * cache of FID->ino mapping. this mechanism is needed to resolve
170 * FID to inode at dt_insert() which in turn stores ino in the
171 * directory entries to keep ldiskfs compatible with ext[34].
172 * due to locking-originated restrictions we can't lookup ino
173 * using LU cache (deadlock is possible). lookup using OI is quite
174 * expensive. so instead we maintain this cache and methods like
175 * dt_create() fill it. so in the majority of cases dt_insert() is
176 * able to find needed mapping in lockless manner.
178 static struct osd_idmap_cache *
179 osd_idc_find(const struct lu_env *env, struct osd_device *osd,
180 const struct lu_fid *fid)
182 struct osd_thread_info *oti = osd_oti_get(env);
183 struct osd_idmap_cache *idc = oti->oti_ins_cache;
185 for (i = 0; i < oti->oti_ins_cache_used; i++) {
186 if (!lu_fid_eq(&idc[i].oic_fid, fid))
188 if (idc[i].oic_dev != osd)
197 static struct osd_idmap_cache *
198 osd_idc_add(const struct lu_env *env, struct osd_device *osd,
199 const struct lu_fid *fid)
201 struct osd_thread_info *oti = osd_oti_get(env);
202 struct osd_idmap_cache *idc;
205 if (unlikely(oti->oti_ins_cache_used >= oti->oti_ins_cache_size)) {
206 i = oti->oti_ins_cache_size * 2;
208 i = OSD_INS_CACHE_SIZE;
209 OBD_ALLOC(idc, sizeof(*idc) * i);
211 return ERR_PTR(-ENOMEM);
212 if (oti->oti_ins_cache != NULL) {
213 memcpy(idc, oti->oti_ins_cache,
214 oti->oti_ins_cache_used * sizeof(*idc));
215 OBD_FREE(oti->oti_ins_cache,
216 oti->oti_ins_cache_used * sizeof(*idc));
218 oti->oti_ins_cache = idc;
219 oti->oti_ins_cache_size = i;
222 idc = oti->oti_ins_cache + oti->oti_ins_cache_used++;
225 idc->oic_lid.oii_ino = 0;
226 idc->oic_lid.oii_gen = 0;
233 * lookup mapping for the given fid in the cache, initialize a
234 * new one if not found. the initialization checks whether the
235 * object is local or remote. for local objects, OI is used to
236 * learn ino/generation. the function is used when the caller
237 * has no information about the object, e.g. at dt_insert().
239 static struct osd_idmap_cache *
240 osd_idc_find_or_init(const struct lu_env *env, struct osd_device *osd,
241 const struct lu_fid *fid)
243 struct osd_idmap_cache *idc;
246 idc = osd_idc_find(env, osd, fid);
247 LASSERT(!IS_ERR(idc));
251 /* new mapping is needed */
252 idc = osd_idc_add(env, osd, fid);
257 rc = osd_remote_fid(env, osd, fid);
258 if (unlikely(rc < 0))
262 /* the object is local, lookup in OI */
263 /* XXX: probably cheaper to lookup in LU first? */
264 rc = osd_oi_lookup(osd_oti_get(env), osd, fid,
266 if (unlikely(rc < 0)) {
267 CERROR("can't lookup: rc = %d\n", rc);
271 /* the object is remote */
279 * lookup mapping for given FID and fill it from the given object.
280 * the object is lolcal by definition.
282 static int osd_idc_find_and_init(const struct lu_env *env,
283 struct osd_device *osd,
284 struct osd_object *obj)
286 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
287 struct osd_idmap_cache *idc;
289 idc = osd_idc_find(env, osd, fid);
290 LASSERT(!IS_ERR(idc));
292 if (obj->oo_inode == NULL)
294 if (idc->oic_lid.oii_ino != obj->oo_inode->i_ino) {
295 LASSERT(idc->oic_lid.oii_ino == 0);
296 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
297 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
302 /* new mapping is needed */
303 idc = osd_idc_add(env, osd, fid);
307 if (obj->oo_inode != NULL) {
308 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
309 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
315 * OSD object methods.
319 * Concurrency: no concurrent access is possible that early in object
322 static struct lu_object *osd_object_alloc(const struct lu_env *env,
323 const struct lu_object_header *hdr,
326 struct osd_object *mo;
331 struct lu_object_header *h;
333 l = &mo->oo_dt.do_lu;
334 h = &osd_dev(d)->od_scrub.os_scrub.os_obj_header;
335 if (unlikely(fid_is_zero(&h->loh_fid))) {
336 /* For the OI_scrub object during OSD device init. */
337 lu_object_header_init(h);
338 lu_object_init(l, h, d);
339 lu_object_add_top(h, l);
341 dt_object_init(&mo->oo_dt, NULL, d);
343 mo->oo_dt.do_ops = &osd_obj_ops;
344 l->lo_ops = &osd_lu_obj_ops;
345 init_rwsem(&mo->oo_sem);
346 init_rwsem(&mo->oo_ext_idx_sem);
347 spin_lock_init(&mo->oo_guard);
348 INIT_LIST_HEAD(&mo->oo_xattr_list);
355 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
356 struct dentry *dentry, struct lustre_ost_attrs *loa)
360 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
361 (void *)loa, sizeof(*loa));
363 struct lustre_mdt_attrs *lma = &loa->loa_lma;
365 if (rc < sizeof(*lma))
369 lustre_loa_swab(loa, true);
370 /* Check LMA compatibility */
371 if (lma->lma_incompat & ~LMA_INCOMPAT_SUPP) {
372 CWARN("%s: unsupported incompat LMA feature(s) %#x "
373 "for fid = "DFID", ino = %lu\n",
375 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
376 PFID(&lma->lma_self_fid), inode->i_ino);
379 } else if (rc == 0) {
387 * retrieve object from backend ext fs.
389 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
390 struct osd_inode_id *id)
393 struct inode *inode = NULL;
395 /* if we look for an inode withing a running
396 * transaction, then we risk to deadlock */
397 /* osd_dirent_check_repair() breaks this */
398 /*LASSERT(current->journal_info == NULL);*/
400 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
402 CDEBUG(D_INODE, "no inode: ino = %u, rc = %ld\n",
403 id->oii_ino, PTR_ERR(inode));
404 } else if (id->oii_gen != OSD_OII_NOGEN &&
405 inode->i_generation != id->oii_gen) {
406 CDEBUG(D_INODE, "unmatched inode: ino = %u, oii_gen = %u, "
407 "i_generation = %u\n",
408 id->oii_ino, id->oii_gen, inode->i_generation);
410 inode = ERR_PTR(-ESTALE);
411 } else if (inode->i_nlink == 0) {
412 /* due to parallel readdir and unlink,
413 * we can have dead inode here. */
414 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
416 inode = ERR_PTR(-ESTALE);
417 } else if (is_bad_inode(inode)) {
418 CWARN("%s: bad inode: ino = %u\n",
419 osd_dev2name(dev), id->oii_ino);
421 inode = ERR_PTR(-ENOENT);
422 } else if ((rc = osd_attach_jinode(inode))) {
426 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
427 if (id->oii_gen == OSD_OII_NOGEN)
428 osd_id_gen(id, inode->i_ino, inode->i_generation);
430 /* Do not update file c/mtime in ldiskfs.
431 * NB: we don't have any lock to protect this because we don't
432 * have reference on osd_object now, but contention with
433 * another lookup + attr_set can't happen in the tiny window
434 * between if (...) and set S_NOCMTIME. */
435 if (!(inode->i_flags & S_NOCMTIME))
436 inode->i_flags |= S_NOCMTIME;
441 int osd_ldiskfs_add_entry(struct osd_thread_info *info, struct osd_device *osd,
442 handle_t *handle, struct dentry *child,
443 struct inode *inode, struct htree_lock *hlock)
447 rc = __ldiskfs_add_entry(handle, child, inode, hlock);
448 if (rc == -ENOBUFS || rc == -ENOSPC) {
449 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
450 struct inode *parent = child->d_parent->d_inode;
451 struct lu_fid *fid = NULL;
453 rc2 = osd_get_lma(info, parent, child->d_parent, loa);
455 fid = &loa->loa_lma.lma_self_fid;
456 } else if (rc2 == -ENODATA) {
457 if (unlikely(parent == inode->i_sb->s_root->d_inode)) {
458 fid = &info->oti_fid3;
459 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
460 } else if (!osd->od_is_ost && osd->od_index == 0) {
461 fid = &info->oti_fid3;
462 lu_igif_build(fid, parent->i_ino,
463 parent->i_generation);
468 CWARN("%s: directory (inode: %lu, FID: "DFID") %s "
469 "maximum entry limit\n",
470 osd_name(osd), parent->i_ino, PFID(fid),
471 rc == -ENOSPC ? "has reached" : "is approaching");
473 CWARN("%s: directory (inode: %lu, FID: unknown) %s "
474 "maximum entry limit\n",
475 osd_name(osd), parent->i_ino,
476 rc == -ENOSPC ? "has reached" : "is approaching");
478 /* ignore such error now */
487 static struct inode *
488 osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
489 struct osd_inode_id *id, struct lu_fid *fid)
491 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
495 inode = osd_iget(info, dev, id);
499 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
501 *fid = loa->loa_lma.lma_self_fid;
502 } else if (rc == -ENODATA) {
503 if (unlikely(inode == osd_sb(dev)->s_root->d_inode))
504 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
506 lu_igif_build(fid, inode->i_ino, inode->i_generation);
514 static struct inode *osd_iget_check(struct osd_thread_info *info,
515 struct osd_device *dev,
516 const struct lu_fid *fid,
517 struct osd_inode_id *id,
524 /* The cached OI mapping is trustable. If we cannot locate the inode
525 * via the cached OI mapping, then return the failure to the caller
526 * directly without further OI checking. */
529 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
532 if (!trusted && (rc == -ENOENT || rc == -ESTALE))
535 CDEBUG(D_INODE, "no inode for FID: "DFID", ino = %u, rc = %d\n",
536 PFID(fid), id->oii_ino, rc);
540 if (is_bad_inode(inode)) {
545 CDEBUG(D_INODE, "bad inode for FID: "DFID", ino = %u\n",
546 PFID(fid), id->oii_ino);
550 if (id->oii_gen != OSD_OII_NOGEN &&
551 inode->i_generation != id->oii_gen) {
556 CDEBUG(D_INODE, "unmatched inode for FID: "DFID", ino = %u, "
557 "oii_gen = %u, i_generation = %u\n", PFID(fid),
558 id->oii_ino, id->oii_gen, inode->i_generation);
562 if (inode->i_nlink == 0) {
567 CDEBUG(D_INODE, "stale inode for FID: "DFID", ino = %u\n",
568 PFID(fid), id->oii_ino);
572 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
576 __u32 saved_ino = id->oii_ino;
577 __u32 saved_gen = id->oii_gen;
580 LASSERTF(rc == -ESTALE || rc == -ENOENT, "rc = %d\n", rc);
582 rc = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
583 /* XXX: There are four possible cases:
585 * Backup/restore caused the OI invalid.
587 * Someone unlinked the object but NOT removed
588 * the OI mapping, such as mount target device
589 * as ldiskfs, and modify something directly.
591 * Someone just removed the object between the
592 * former oi_lookup and the iget. It is normal.
593 * 4. Other failure cases.
595 * Generally, when the device is mounted, it will
596 * auto check whether the system is restored from
597 * file-level backup or not. We trust such detect
598 * to distinguish the 1st case from the 2nd case:
599 * if the OI files are consistent but may contain
600 * stale OI mappings because of case 2, if iget()
601 * returns -ENOENT or -ESTALE, then it should be
604 /* If the OI mapping was in OI file before the
605 * osd_iget_check(), but now, it is disappear,
606 * then it must be removed by race. That is a
607 * normal race case. */
610 /* It is the OI scrub updated the OI mapping by race.
611 * The new OI mapping must be valid. */
612 if (saved_ino != id->oii_ino ||
613 (saved_gen != id->oii_gen && saved_gen != OSD_OII_NOGEN)) {
622 if (dev->od_scrub.os_scrub.os_file.sf_flags &
624 /* It still can be the case 2, but we cannot
625 * distinguish it from the case 1. So return
626 * -EREMCHG to block current operation until
627 * OI scrub rebuilt the OI mappings. */
635 if (inode->i_generation == id->oii_gen)
640 if (id->oii_gen == OSD_OII_NOGEN)
641 osd_id_gen(id, inode->i_ino, inode->i_generation);
643 /* Do not update file c/mtime in ldiskfs.
644 * NB: we don't have any lock to protect this because we don't
645 * have reference on osd_object now, but contention with
646 * another lookup + attr_set can't happen in the tiny window
647 * between if (...) and set S_NOCMTIME. */
648 if (!(inode->i_flags & S_NOCMTIME))
649 inode->i_flags |= S_NOCMTIME;
666 * \retval +v: new filter_fid, does not contain self-fid
667 * \retval 0: filter_fid_old, contains self-fid
668 * \retval -v: other failure cases
670 int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
671 struct dentry *dentry, struct lu_fid *fid)
673 struct filter_fid_old *ff = &info->oti_ff;
674 struct ost_id *ostid = &info->oti_ostid;
677 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
678 if (rc == sizeof(*ff)) {
680 ostid_set_seq(ostid, le64_to_cpu(ff->ff_seq));
681 rc = ostid_set_id(ostid, le64_to_cpu(ff->ff_objid));
683 * XXX: use 0 as the index for compatibility, the caller will
684 * handle index related issues when necessary.
687 ostid_to_fid(fid, ostid, 0);
688 } else if (rc == sizeof(struct filter_fid)) {
690 } else if (rc >= 0) {
697 static int osd_lma_self_repair(struct osd_thread_info *info,
698 struct osd_device *osd, struct inode *inode,
699 const struct lu_fid *fid, __u32 compat)
704 LASSERT(current->journal_info == NULL);
706 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC,
707 osd_dto_credits_noquota[DTO_XATTR_SET]);
710 CWARN("%s: cannot start journal for lma_self_repair: rc = %d\n",
715 rc = osd_ea_fid_set(info, inode, fid, compat, 0);
717 CWARN("%s: cannot self repair the LMA: rc = %d\n",
719 ldiskfs_journal_stop(jh);
723 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
725 struct osd_thread_info *info = osd_oti_get(env);
726 struct osd_device *osd = osd_obj2dev(obj);
727 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
728 struct lustre_mdt_attrs *lma = &loa->loa_lma;
729 struct inode *inode = obj->oo_inode;
730 struct dentry *dentry = &info->oti_obj_dentry;
731 struct lu_fid *fid = NULL;
732 const struct lu_fid *rfid = lu_object_fid(&obj->oo_dt.do_lu);
736 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
737 (void *)loa, sizeof(*loa));
738 if (rc == -ENODATA && !fid_is_igif(rfid) && osd->od_check_ff) {
739 fid = &lma->lma_self_fid;
740 rc = osd_get_idif(info, inode, dentry, fid);
741 if ((rc > 0) || (rc == -ENODATA && osd->od_index_in_idif)) {
742 /* For the given OST-object, if it has neither LMA nor
743 * FID in XATTR_NAME_FID, then the given FID (which is
744 * contained in the @obj, from client RPC for locating
745 * the OST-object) is trusted. We use it to generate
747 osd_lma_self_repair(info, osd, inode, rfid,
758 lustre_lma_swab(lma);
759 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
760 (CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT) &&
761 S_ISREG(inode->i_mode)))) {
762 CWARN("%s: unsupported incompat LMA feature(s) %#x for "
763 "fid = "DFID", ino = %lu\n", osd_name(osd),
764 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
765 PFID(rfid), inode->i_ino);
768 fid = &lma->lma_self_fid;
769 if (lma->lma_compat & LMAC_STRIPE_INFO &&
771 obj->oo_pfid_in_lma = 1;
772 if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
774 lu_object_set_agent_entry(&obj->oo_dt.do_lu);
778 if (fid != NULL && unlikely(!lu_fid_eq(rfid, fid))) {
779 if (fid_is_idif(rfid) && fid_is_idif(fid)) {
780 struct ost_id *oi = &info->oti_ostid;
781 struct lu_fid *fid1 = &info->oti_fid3;
782 __u32 idx = fid_idif_ost_idx(rfid);
784 /* For old IDIF, the OST index is not part of the IDIF,
785 * Means that different OSTs may have the same IDIFs.
786 * Under such case, we need to make some compatible
787 * check to make sure to trigger OI scrub properly. */
788 if (idx != 0 && fid_idif_ost_idx(fid) == 0) {
789 /* Given @rfid is new, LMA is old. */
790 fid_to_ostid(fid, oi);
791 ostid_to_fid(fid1, oi, idx);
792 if (lu_fid_eq(fid1, rfid)) {
793 if (osd->od_index_in_idif)
794 osd_lma_self_repair(info, osd,
808 struct osd_check_lmv_buf {
809 #ifdef HAVE_DIR_CONTEXT
810 /* please keep it as first member */
811 struct dir_context ctx;
813 struct osd_thread_info *oclb_info;
814 struct osd_device *oclb_dev;
815 struct osd_idmap_cache *oclb_oic;
821 * It is called internally by ->readdir() to filter out the
822 * local slave object's FID of the striped directory.
824 * \retval 1 found the local slave's FID
825 * \retval 0 continue to check next item
826 * \retval -ve for failure
828 #ifdef HAVE_FILLDIR_USE_CTX
829 static int osd_stripe_dir_filldir(struct dir_context *buf,
831 static int osd_stripe_dir_filldir(void *buf,
833 const char *name, int namelen,
834 loff_t offset, __u64 ino, unsigned d_type)
836 struct osd_check_lmv_buf *oclb = (struct osd_check_lmv_buf *)buf;
837 struct osd_thread_info *oti = oclb->oclb_info;
838 struct lu_fid *fid = &oti->oti_fid3;
839 struct osd_inode_id *id = &oti->oti_id3;
840 struct osd_device *dev = oclb->oclb_dev;
841 struct osd_idmap_cache *oic = oclb->oclb_oic;
850 sscanf(name + 1, SFID, RFID(fid));
851 if (!fid_is_sane(fid))
854 if (osd_remote_fid(oti->oti_env, dev, fid))
857 osd_id_gen(id, ino, OSD_OII_NOGEN);
858 inode = osd_iget(oti, dev, id);
860 return PTR_ERR(inode);
863 osd_add_oi_cache(oti, dev, id, fid);
867 osd_oii_insert(dev, oic, true);
868 oclb->oclb_found = true;
873 /* When lookup item under striped directory, we need to locate the master
874 * MDT-object of the striped directory firstly, then the client will send
875 * lookup (getattr_by_name) RPC to the MDT with some slave MDT-object's FID
876 * and the item's name. If the system is restored from MDT file level backup,
877 * then before the OI scrub completely built the OI files, the OI mappings of
878 * the master MDT-object and slave MDT-object may be invalid. Usually, it is
879 * not a problem for the master MDT-object. Because when locate the master
880 * MDT-object, we will do name based lookup (for the striped directory itself)
881 * firstly, during such process we can setup the correct OI mapping for the
882 * master MDT-object. But it will be trouble for the slave MDT-object. Because
883 * the client will not trigger name based lookup on the MDT to locate the slave
884 * MDT-object before locating item under the striped directory, then when
885 * osd_fid_lookup(), it will find that the OI mapping for the slave MDT-object
886 * is invalid and does not know what the right OI mapping is, then the MDT has
887 * to return -EINPROGRESS to the client to notify that the OI scrub is rebuiding
888 * the OI file, related OI mapping is unknown yet, please try again later. And
889 * then client will re-try the RPC again and again until related OI mapping has
890 * been updated. That is quite inefficient.
892 * To resolve above trouble, we will handle it as the following two cases:
894 * 1) The slave MDT-object and the master MDT-object are on different MDTs.
895 * It is relative easy. Be as one of remote MDT-objects, the slave MDT-object
896 * is linked under /REMOTE_PARENT_DIR with the name of its FID string.
897 * We can locate the slave MDT-object via lookup the /REMOTE_PARENT_DIR
898 * directly. Please check osd_fid_lookup().
900 * 2) The slave MDT-object and the master MDT-object reside on the same MDT.
901 * Under such case, during lookup the master MDT-object, we will lookup the
902 * slave MDT-object via readdir against the master MDT-object, because the
903 * slave MDT-objects information are stored as sub-directories with the name
904 * "${FID}:${index}". Then when find the local slave MDT-object, its OI
905 * mapping will be recorded. Then subsequent osd_fid_lookup() will know
906 * the correct OI mapping for the slave MDT-object. */
907 static int osd_check_lmv(struct osd_thread_info *oti, struct osd_device *dev,
908 struct inode *inode, struct osd_idmap_cache *oic)
910 struct lu_buf *buf = &oti->oti_big_buf;
911 struct dentry *dentry = &oti->oti_obj_dentry;
912 struct file *filp = &oti->oti_file;
913 const struct file_operations *fops;
914 struct lmv_mds_md_v1 *lmv1;
915 struct osd_check_lmv_buf oclb = {
916 #ifdef HAVE_DIR_CONTEXT
917 .ctx.actor = osd_stripe_dir_filldir,
928 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, buf->lb_buf,
931 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, NULL, 0);
933 lu_buf_realloc(buf, rc);
934 if (buf->lb_buf == NULL)
935 GOTO(out, rc = -ENOMEM);
941 if (unlikely(rc == 0 || rc == -ENODATA))
947 if (unlikely(buf->lb_buf == NULL)) {
948 lu_buf_realloc(buf, rc);
949 if (buf->lb_buf == NULL)
950 GOTO(out, rc = -ENOMEM);
956 if (le32_to_cpu(lmv1->lmv_magic) != LMV_MAGIC_V1)
960 dentry->d_inode = inode;
961 dentry->d_sb = inode->i_sb;
963 filp->f_path.dentry = dentry;
964 filp->f_mode = FMODE_64BITHASH;
965 filp->f_mapping = inode->i_mapping;
967 filp->private_data = NULL;
968 set_file_inode(filp, inode);
972 #ifdef HAVE_DIR_CONTEXT
973 oclb.ctx.pos = filp->f_pos;
974 rc = fops->iterate(filp, &oclb.ctx);
975 filp->f_pos = oclb.ctx.pos;
977 rc = fops->readdir(filp, &oclb, osd_stripe_dir_filldir);
979 } while (rc >= 0 && oclb.oclb_items > 0 && !oclb.oclb_found &&
980 filp->f_pos != LDISKFS_HTREE_EOF_64BIT);
981 fops->release(inode, filp);
985 CDEBUG(D_LFSCK, "%s: fail to check LMV EA, inode = %lu/%u,"
986 DFID": rc = %d\n", osd_ino2name(inode),
987 inode->i_ino, inode->i_generation,
988 PFID(&oic->oic_fid), rc);
995 static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
996 const struct lu_fid *fid,
997 const struct lu_object_conf *conf)
999 struct osd_thread_info *info;
1000 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
1001 struct osd_device *dev;
1002 struct osd_idmap_cache *oic;
1003 struct osd_inode_id *id;
1004 struct inode *inode = NULL;
1005 struct lustre_scrub *scrub;
1006 struct scrub_file *sf;
1007 __u32 flags = SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT | SS_AUTO_FULL;
1012 bool remote = false;
1013 bool trusted = true;
1014 bool updated = false;
1015 bool checked = false;
1018 LINVRNT(osd_invariant(obj));
1019 LASSERT(obj->oo_inode == NULL);
1020 LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID"\n", PFID(fid));
1022 dev = osd_dev(ldev);
1023 scrub = &dev->od_scrub.os_scrub;
1024 sf = &scrub->os_file;
1025 info = osd_oti_get(env);
1027 oic = &info->oti_cache;
1029 if (OBD_FAIL_CHECK(OBD_FAIL_SRV_ENOENT))
1032 /* For the object is created as locking anchor, or for the object to
1033 * be created on disk. No need to osd_oi_lookup() at here because FID
1034 * shouldn't never be re-used, if it's really a duplicate FID from
1035 * unexpected reason, we should be able to detect it later by calling
1036 * do_create->osd_oi_insert(). */
1037 if (conf && conf->loc_flags & LOC_F_NEW)
1038 GOTO(out, result = 0);
1040 /* Search order: 1. per-thread cache. */
1041 if (lu_fid_eq(fid, &oic->oic_fid) && likely(oic->oic_dev == dev)) {
1047 if (!list_empty(&scrub->os_inconsistent_items)) {
1048 /* Search order: 2. OI scrub pending list. */
1049 result = osd_oii_lookup(dev, fid, id);
1054 /* The OI mapping in the OI file can be updated by the OI scrub
1055 * when we locate the inode via FID. So it may be not trustable. */
1058 /* Search order: 3. OI files. */
1059 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1060 if (result == -ENOENT) {
1061 if (!(fid_is_norm(fid) || fid_is_igif(fid)) ||
1062 fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) ||
1063 !ldiskfs_test_bit(osd_oi_fid2idx(dev,fid),
1065 GOTO(out, result = 0);
1074 obj->oo_inode = NULL;
1075 /* for later passes through checks, not true on first pass */
1076 if (!IS_ERR_OR_NULL(inode))
1079 inode = osd_iget_check(info, dev, fid, id, trusted);
1080 if (!IS_ERR(inode)) {
1081 obj->oo_inode = inode;
1089 result = PTR_ERR(inode);
1090 if (result == -ENOENT || result == -ESTALE)
1091 GOTO(out, result = 0);
1093 if (result != -EREMCHG)
1097 /* We still have chance to get the valid inode: for the
1098 * object which is referenced by remote name entry, the
1099 * object on the local MDT will be linked under the dir
1100 * of "/REMOTE_PARENT_DIR" with its FID string as name.
1102 * We do not know whether the object for the given FID
1103 * is referenced by some remote name entry or not, and
1104 * especially for DNE II, a multiple-linked object may
1105 * have many name entries reside on many MDTs.
1107 * To simplify the operation, OSD will not distinguish
1108 * more, just lookup "/REMOTE_PARENT_DIR". Usually, it
1109 * only happened for the RPC from other MDT during the
1110 * OI scrub, or for the client side RPC with FID only,
1111 * such as FID to path, or from old connected client. */
1112 if (!remote && !fid_is_on_ost(info, dev, fid, OI_CHECK_FLD)) {
1113 rc1 = osd_lookup_in_remote_parent(info, dev, fid, id);
1117 flags |= SS_AUTO_PARTIAL;
1118 flags &= ~SS_AUTO_FULL;
1123 if (thread_is_running(&scrub->os_thread)) {
1124 if (scrub->os_partial_scan && !scrub->os_in_join)
1127 if (IS_ERR_OR_NULL(inode) || result)
1128 GOTO(out, result = -EINPROGRESS);
1131 LASSERT(obj->oo_inode == inode);
1133 osd_add_oi_cache(info, dev, id, fid);
1134 osd_oii_insert(dev, oic, true);
1138 if (dev->od_auto_scrub_interval == AS_NEVER) {
1140 GOTO(out, result = -EREMCHG);
1143 LASSERT(obj->oo_inode == inode);
1145 osd_add_oi_cache(info, dev, id, fid);
1150 rc1 = osd_scrub_start(env, dev, flags);
1151 LCONSOLE_WARN("%s: trigger OI scrub by RPC for the " DFID" with flags "
1152 "0x%x, rc = %d\n", osd_name(dev), PFID(fid), flags, rc1);
1153 if (rc1 && rc1 != -EALREADY)
1154 GOTO(out, result = -EREMCHG);
1156 if (IS_ERR_OR_NULL(inode) || result)
1157 GOTO(out, result = -EINPROGRESS);
1160 LASSERT(obj->oo_inode == inode);
1162 osd_add_oi_cache(info, dev, id, fid);
1163 osd_oii_insert(dev, oic, true);
1167 result = osd_check_lma(env, obj);
1172 LASSERTF(id->oii_ino == inode->i_ino &&
1173 id->oii_gen == inode->i_generation,
1174 "locate wrong inode for FID: "DFID", %u/%u => %ld/%u\n",
1175 PFID(fid), id->oii_ino, id->oii_gen,
1176 inode->i_ino, inode->i_generation);
1178 saved_ino = inode->i_ino;
1179 saved_gen = inode->i_generation;
1181 if (unlikely(result == -ENODATA)) {
1182 /* If the OI scrub updated the OI mapping by race, it
1183 * must be valid. Trust the inode that has no LMA EA. */
1187 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1189 /* The OI mapping is still there, the inode is still
1190 * valid. It is just becaues the inode has no LMA EA. */
1191 if (saved_ino == id->oii_ino &&
1192 saved_gen == id->oii_gen)
1195 /* It is the OI scrub updated the OI mapping by race.
1196 * The new OI mapping must be valid. */
1202 /* "result == -ENOENT" means that the OI mappinghas been
1203 * removed by race, so the inode belongs to other object.
1205 * Others error can be returned directly. */
1206 if (result == -ENOENT) {
1209 obj->oo_inode = NULL;
1214 if (result != -EREMCHG)
1219 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1220 /* "result == -ENOENT" means the cached OI mapping has been removed
1221 * from the OI file by race, above inode belongs to other object. */
1222 if (result == -ENOENT) {
1225 obj->oo_inode = NULL;
1226 GOTO(out, result = 0);
1232 if (saved_ino == id->oii_ino && saved_gen == id->oii_gen) {
1237 /* It is the OI scrub updated the OI mapping by race.
1238 * The new OI mapping must be valid. */
1245 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
1246 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
1248 result = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
1250 if (lma->lma_compat & LMAC_STRIPE_INFO &&
1252 obj->oo_pfid_in_lma = 1;
1253 if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
1255 lu_object_set_agent_entry(&obj->oo_dt.do_lu);
1256 } else if (result != -ENODATA) {
1261 obj->oo_compat_dot_created = 1;
1262 obj->oo_compat_dotdot_created = 1;
1264 if (S_ISDIR(inode->i_mode) &&
1265 (flags & SS_AUTO_PARTIAL || sf->sf_status == SS_SCANNING))
1266 osd_check_lmv(info, dev, inode, oic);
1268 result = osd_attach_jinode(inode);
1273 GOTO(out, result = 0);
1275 LASSERT(!obj->oo_hl_head);
1276 obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
1278 GOTO(out, result = (!obj->oo_hl_head ? -ENOMEM : 0));
1281 if (result || !obj->oo_inode) {
1282 if (!IS_ERR_OR_NULL(inode))
1285 obj->oo_inode = NULL;
1287 fid_zero(&oic->oic_fid);
1290 LINVRNT(osd_invariant(obj));
1295 * Concurrency: shouldn't matter.
1297 static void osd_object_init0(struct osd_object *obj)
1299 LASSERT(obj->oo_inode != NULL);
1300 obj->oo_dt.do_body_ops = &osd_body_ops;
1301 obj->oo_dt.do_lu.lo_header->loh_attr |=
1302 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
1306 * Concurrency: no concurrent access is possible that early in object
1309 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
1310 const struct lu_object_conf *conf)
1312 struct osd_object *obj = osd_obj(l);
1315 LINVRNT(osd_invariant(obj));
1317 if (fid_is_otable_it(&l->lo_header->loh_fid)) {
1318 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
1319 l->lo_header->loh_attr |= LOHA_EXISTS;
1323 result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
1324 if (unlikely(l->lo_header ==
1325 &osd_obj2dev(obj)->od_scrub.os_scrub.os_obj_header)) {
1326 /* For the OI_scrub object during OSD device init. */
1327 l->lo_header->loh_attr |= LOHA_EXISTS;
1328 obj->oo_dt.do_body_ops = &osd_body_ops;
1330 obj->oo_dt.do_body_ops = &osd_body_ops_new;
1332 if (result == 0 && obj->oo_inode != NULL) {
1333 struct osd_thread_info *oti = osd_oti_get(env);
1334 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
1336 osd_object_init0(obj);
1337 result = osd_get_lma(oti, obj->oo_inode,
1338 &oti->oti_obj_dentry, loa);
1340 /* Convert LMAI flags to lustre LMA flags
1341 * and cache it to oo_lma_flags */
1343 lma_to_lustre_flags(loa->loa_lma.lma_incompat);
1344 } else if (result == -ENODATA) {
1349 LINVRNT(osd_invariant(obj));
1353 /* The first part of oxe_buf is xattr name, and is '\0' terminated.
1354 * The left part is for value, binary mode. */
1355 struct osd_xattr_entry {
1356 struct list_head oxe_list;
1360 struct rcu_head oxe_rcu;
1364 static int osd_oxc_get(struct osd_object *obj, const char *name,
1367 struct osd_xattr_entry *tmp;
1368 struct osd_xattr_entry *oxe = NULL;
1369 size_t namelen = strlen(name);
1374 list_for_each_entry_rcu(tmp, &obj->oo_xattr_list, oxe_list) {
1375 if (namelen == tmp->oxe_namelen &&
1376 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1383 GOTO(out, rc = -ENOENT);
1385 if (!oxe->oxe_exist)
1386 GOTO(out, rc = -ENODATA);
1389 rc = oxe->oxe_len - sizeof(*oxe) - oxe->oxe_namelen - 1;
1392 if (buf->lb_buf == NULL)
1395 if (buf->lb_len < rc)
1396 GOTO(out, rc = -ERANGE);
1398 memcpy(buf->lb_buf, &oxe->oxe_buf[namelen + 1], rc);
1406 static void osd_oxc_free(struct rcu_head *head)
1408 struct osd_xattr_entry *oxe;
1410 oxe = container_of(head, struct osd_xattr_entry, oxe_rcu);
1411 OBD_FREE(oxe, oxe->oxe_len);
1414 static void osd_oxc_add(struct osd_object *obj, const char *name,
1415 const char *buf, int buflen)
1417 struct osd_xattr_entry *oxe;
1418 struct osd_xattr_entry *old = NULL;
1419 struct osd_xattr_entry *tmp;
1420 size_t namelen = strlen(name);
1421 size_t len = sizeof(*oxe) + namelen + 1 + buflen;
1423 OBD_ALLOC(oxe, len);
1427 INIT_LIST_HEAD(&oxe->oxe_list);
1429 oxe->oxe_namelen = namelen;
1430 memcpy(oxe->oxe_buf, name, namelen);
1432 LASSERT(buf != NULL);
1433 memcpy(oxe->oxe_buf + namelen + 1, buf, buflen);
1434 oxe->oxe_exist = true;
1436 oxe->oxe_exist = false;
1439 /* this should be rarely called, just remove old and add new */
1440 spin_lock(&obj->oo_guard);
1441 list_for_each_entry(tmp, &obj->oo_xattr_list, oxe_list) {
1442 if (namelen == tmp->oxe_namelen &&
1443 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1449 list_replace_rcu(&old->oxe_list, &oxe->oxe_list);
1450 call_rcu(&old->oxe_rcu, osd_oxc_free);
1452 list_add_tail_rcu(&oxe->oxe_list, &obj->oo_xattr_list);
1454 spin_unlock(&obj->oo_guard);
1457 static void osd_oxc_del(struct osd_object *obj, const char *name)
1459 struct osd_xattr_entry *oxe;
1460 size_t namelen = strlen(name);
1462 spin_lock(&obj->oo_guard);
1463 list_for_each_entry(oxe, &obj->oo_xattr_list, oxe_list) {
1464 if (namelen == oxe->oxe_namelen &&
1465 strncmp(name, oxe->oxe_buf, namelen) == 0) {
1466 list_del_rcu(&oxe->oxe_list);
1467 call_rcu(&oxe->oxe_rcu, osd_oxc_free);
1471 spin_unlock(&obj->oo_guard);
1474 static void osd_oxc_fini(struct osd_object *obj)
1476 struct osd_xattr_entry *oxe, *next;
1478 list_for_each_entry_safe(oxe, next, &obj->oo_xattr_list, oxe_list) {
1479 list_del(&oxe->oxe_list);
1480 OBD_FREE(oxe, oxe->oxe_len);
1485 * Concurrency: no concurrent access is possible that late in object
1488 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
1490 struct osd_object *obj = osd_obj(l);
1491 struct lu_object_header *h = NULL;
1493 LINVRNT(osd_invariant(obj));
1495 if (unlikely(l->lo_header ==
1496 &osd_obj2dev(obj)->od_scrub.os_scrub.os_obj_header))
1500 dt_object_fini(&obj->oo_dt);
1501 if (obj->oo_hl_head != NULL)
1502 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
1505 lu_object_header_fini(h);
1509 * Concurrency: no concurrent access is possible that late in object
1512 static void osd_index_fini(struct osd_object *o)
1514 struct iam_container *bag;
1516 if (o->oo_dir != NULL) {
1517 bag = &o->oo_dir->od_container;
1518 if (o->oo_inode != NULL) {
1519 if (bag->ic_object == o->oo_inode)
1520 iam_container_fini(bag);
1522 OBD_FREE_PTR(o->oo_dir);
1528 * Concurrency: no concurrent access is possible that late in object
1529 * life-cycle (for all existing callers, that is. New callers have to provide
1530 * their own locking.)
1532 static int osd_inode_unlinked(const struct inode *inode)
1534 return inode->i_nlink == 0;
1538 OSD_TXN_OI_DELETE_CREDITS = 20,
1539 OSD_TXN_INODE_DELETE_CREDITS = 20
1546 #if OSD_THANDLE_STATS
1548 * Set time when the handle is allocated
1550 static void osd_th_alloced(struct osd_thandle *oth)
1552 oth->oth_alloced = ktime_get();
1556 * Set time when the handle started
1558 static void osd_th_started(struct osd_thandle *oth)
1560 oth->oth_started = ktime_get();
1564 * Check whether the we deal with this handle for too long.
1566 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
1567 ktime_t alloced, ktime_t started,
1570 ktime_t now = ktime_get();
1572 LASSERT(dev != NULL);
1574 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
1575 ktime_us_delta(started, alloced));
1576 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
1577 ktime_us_delta(closed, started));
1578 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
1579 ktime_us_delta(now, closed));
1581 if (ktime_before(ktime_add_ns(alloced, 30 * NSEC_PER_SEC), now)) {
1582 CWARN("transaction handle %p was open for too long: now %lld, alloced %lld, started %lld, closed %lld\n",
1583 oth, now, alloced, started, closed);
1584 libcfs_debug_dumpstack(NULL);
1588 #define OSD_CHECK_SLOW_TH(oth, dev, expr) \
1590 ktime_t __closed = ktime_get(); \
1591 ktime_t __alloced = oth->oth_alloced; \
1592 ktime_t __started = oth->oth_started; \
1595 __osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
1598 #else /* OSD_THANDLE_STATS */
1600 #define osd_th_alloced(h) do {} while(0)
1601 #define osd_th_started(h) do {} while(0)
1602 #define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
1604 #endif /* OSD_THANDLE_STATS */
1607 * Concurrency: doesn't access mutable data.
1609 static int osd_param_is_not_sane(const struct osd_device *dev,
1610 const struct thandle *th)
1612 struct osd_thandle *oh = container_of(th, typeof(*oh), ot_super);
1614 return oh->ot_credits > osd_transaction_size(dev);
1618 * Concurrency: shouldn't matter.
1620 static void osd_trans_commit_cb(struct super_block *sb,
1621 struct ldiskfs_journal_cb_entry *jcb, int error)
1623 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
1624 struct thandle *th = &oh->ot_super;
1625 struct lu_device *lud = &th->th_dev->dd_lu_dev;
1626 struct dt_txn_commit_cb *dcb, *tmp;
1628 LASSERT(oh->ot_handle == NULL);
1631 CERROR("transaction @0x%p commit error: %d\n", th, error);
1633 dt_txn_hook_commit(th);
1635 /* call per-transaction callbacks if any */
1636 list_for_each_entry_safe(dcb, tmp, &oh->ot_commit_dcb_list,
1638 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1639 "commit callback entry: magic=%x name='%s'\n",
1640 dcb->dcb_magic, dcb->dcb_name);
1641 list_del_init(&dcb->dcb_linkage);
1642 dcb->dcb_func(NULL, th, dcb, error);
1645 lu_ref_del_at(&lud->ld_reference, &oh->ot_dev_link, "osd-tx", th);
1652 #ifndef HAVE_SB_START_WRITE
1653 # define sb_start_write(sb) do {} while (0)
1654 # define sb_end_write(sb) do {} while (0)
1657 static struct thandle *osd_trans_create(const struct lu_env *env,
1658 struct dt_device *d)
1660 struct osd_thread_info *oti = osd_oti_get(env);
1661 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1662 struct osd_thandle *oh;
1667 CERROR("%s: someone try to start transaction under "
1668 "readonly mode, should be disabled.\n",
1669 osd_name(osd_dt_dev(d)));
1671 RETURN(ERR_PTR(-EROFS));
1674 /* on pending IO in this thread should left from prev. request */
1675 LASSERT(atomic_read(&iobuf->dr_numreqs) == 0);
1677 sb_start_write(osd_sb(osd_dt_dev(d)));
1679 OBD_ALLOC_GFP(oh, sizeof *oh, GFP_NOFS);
1681 oh->ot_quota_trans = &oti->oti_quota_trans;
1682 memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
1687 INIT_LIST_HEAD(&oh->ot_commit_dcb_list);
1688 INIT_LIST_HEAD(&oh->ot_stop_dcb_list);
1691 memset(oti->oti_declare_ops, 0,
1692 sizeof(oti->oti_declare_ops));
1693 memset(oti->oti_declare_ops_cred, 0,
1694 sizeof(oti->oti_declare_ops_cred));
1695 memset(oti->oti_declare_ops_used, 0,
1696 sizeof(oti->oti_declare_ops_used));
1698 sb_end_write(osd_sb(osd_dt_dev(d)));
1699 th = ERR_PTR(-ENOMEM);
1704 void osd_trans_dump_creds(const struct lu_env *env, struct thandle *th)
1706 struct osd_thread_info *oti = osd_oti_get(env);
1707 struct osd_thandle *oh;
1709 oh = container_of0(th, struct osd_thandle, ot_super);
1710 LASSERT(oh != NULL);
1712 CWARN(" create: %u/%u/%u, destroy: %u/%u/%u\n",
1713 oti->oti_declare_ops[OSD_OT_CREATE],
1714 oti->oti_declare_ops_cred[OSD_OT_CREATE],
1715 oti->oti_declare_ops_used[OSD_OT_CREATE],
1716 oti->oti_declare_ops[OSD_OT_DESTROY],
1717 oti->oti_declare_ops_cred[OSD_OT_DESTROY],
1718 oti->oti_declare_ops_used[OSD_OT_DESTROY]);
1719 CWARN(" attr_set: %u/%u/%u, xattr_set: %u/%u/%u\n",
1720 oti->oti_declare_ops[OSD_OT_ATTR_SET],
1721 oti->oti_declare_ops_cred[OSD_OT_ATTR_SET],
1722 oti->oti_declare_ops_used[OSD_OT_ATTR_SET],
1723 oti->oti_declare_ops[OSD_OT_XATTR_SET],
1724 oti->oti_declare_ops_cred[OSD_OT_XATTR_SET],
1725 oti->oti_declare_ops_used[OSD_OT_XATTR_SET]);
1726 CWARN(" write: %u/%u/%u, punch: %u/%u/%u, quota %u/%u/%u\n",
1727 oti->oti_declare_ops[OSD_OT_WRITE],
1728 oti->oti_declare_ops_cred[OSD_OT_WRITE],
1729 oti->oti_declare_ops_used[OSD_OT_WRITE],
1730 oti->oti_declare_ops[OSD_OT_PUNCH],
1731 oti->oti_declare_ops_cred[OSD_OT_PUNCH],
1732 oti->oti_declare_ops_used[OSD_OT_PUNCH],
1733 oti->oti_declare_ops[OSD_OT_QUOTA],
1734 oti->oti_declare_ops_cred[OSD_OT_QUOTA],
1735 oti->oti_declare_ops_used[OSD_OT_QUOTA]);
1736 CWARN(" insert: %u/%u/%u, delete: %u/%u/%u\n",
1737 oti->oti_declare_ops[OSD_OT_INSERT],
1738 oti->oti_declare_ops_cred[OSD_OT_INSERT],
1739 oti->oti_declare_ops_used[OSD_OT_INSERT],
1740 oti->oti_declare_ops[OSD_OT_DELETE],
1741 oti->oti_declare_ops_cred[OSD_OT_DELETE],
1742 oti->oti_declare_ops_used[OSD_OT_DELETE]);
1743 CWARN(" ref_add: %u/%u/%u, ref_del: %u/%u/%u\n",
1744 oti->oti_declare_ops[OSD_OT_REF_ADD],
1745 oti->oti_declare_ops_cred[OSD_OT_REF_ADD],
1746 oti->oti_declare_ops_used[OSD_OT_REF_ADD],
1747 oti->oti_declare_ops[OSD_OT_REF_DEL],
1748 oti->oti_declare_ops_cred[OSD_OT_REF_DEL],
1749 oti->oti_declare_ops_used[OSD_OT_REF_DEL]);
1753 * Concurrency: shouldn't matter.
1755 static int osd_trans_start(const struct lu_env *env, struct dt_device *d,
1758 struct osd_thread_info *oti = osd_oti_get(env);
1759 struct osd_device *dev = osd_dt_dev(d);
1761 struct osd_thandle *oh;
1766 LASSERT(current->journal_info == NULL);
1768 oh = container_of0(th, struct osd_thandle, ot_super);
1769 LASSERT(oh != NULL);
1770 LASSERT(oh->ot_handle == NULL);
1772 rc = dt_txn_hook_start(env, d, th);
1776 if (unlikely(osd_param_is_not_sane(dev, th))) {
1777 static unsigned long last_printed;
1778 static int last_credits;
1780 /* don't make noise on a tiny testing systems
1781 * actual credits misuse will be caught anyway */
1782 if (last_credits != oh->ot_credits &&
1783 time_after(jiffies, last_printed +
1784 msecs_to_jiffies(60 * MSEC_PER_SEC)) &&
1785 osd_transaction_size(dev) > 512) {
1786 CWARN("%s: credits %u > trans_max %u\n", osd_name(dev),
1787 oh->ot_credits, osd_transaction_size(dev));
1788 osd_trans_dump_creds(env, th);
1789 libcfs_debug_dumpstack(NULL);
1790 last_credits = oh->ot_credits;
1791 last_printed = jiffies;
1793 /* XXX Limit the credits to 'max_transaction_buffers', and
1794 * let the underlying filesystem to catch the error if
1795 * we really need so many credits.
1797 * This should be removed when we can calculate the
1798 * credits precisely. */
1799 oh->ot_credits = osd_transaction_size(dev);
1800 } else if (ldiskfs_track_declares_assert != 0) {
1801 /* reserve few credits to prevent an assertion in JBD
1802 * our debugging mechanism will be able to detected
1803 * overuse. this can help to debug single-update
1805 oh->ot_credits += 10;
1806 if (unlikely(osd_param_is_not_sane(dev, th)))
1807 oh->ot_credits = osd_transaction_size(dev);
1811 * XXX temporary stuff. Some abstraction layer should
1814 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, oh->ot_credits);
1818 LASSERT(oti->oti_txns == 0);
1820 lu_device_get(&d->dd_lu_dev);
1821 lu_ref_add_at(&d->dd_lu_dev.ld_reference, &oh->ot_dev_link,
1832 static int osd_seq_exists(const struct lu_env *env,
1833 struct osd_device *osd, u64 seq)
1835 struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
1836 struct seq_server_site *ss = osd_seq_site(osd);
1840 LASSERT(ss != NULL);
1841 LASSERT(ss->ss_server_fld != NULL);
1843 rc = osd_fld_lookup(env, osd, seq, range);
1846 CERROR("%s: can't lookup FLD sequence %#llx: rc = %d\n",
1847 osd_name(osd), seq, rc);
1851 RETURN(ss->ss_node_id == range->lsr_index);
1854 static void osd_trans_stop_cb(struct osd_thandle *oth, int result)
1856 struct dt_txn_commit_cb *dcb;
1857 struct dt_txn_commit_cb *tmp;
1859 /* call per-transaction stop callbacks if any */
1860 list_for_each_entry_safe(dcb, tmp, &oth->ot_stop_dcb_list,
1862 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1863 "commit callback entry: magic=%x name='%s'\n",
1864 dcb->dcb_magic, dcb->dcb_name);
1865 list_del_init(&dcb->dcb_linkage);
1866 dcb->dcb_func(NULL, &oth->ot_super, dcb, result);
1871 * Concurrency: shouldn't matter.
1873 static int osd_trans_stop(const struct lu_env *env, struct dt_device *dt,
1876 int rc = 0, remove_agents = 0;
1877 struct osd_thandle *oh;
1878 struct osd_thread_info *oti = osd_oti_get(env);
1879 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1880 struct osd_device *osd = osd_dt_dev(th->th_dev);
1881 struct qsd_instance *qsd = osd->od_quota_slave;
1882 struct lquota_trans *qtrans;
1885 oh = container_of0(th, struct osd_thandle, ot_super);
1887 /* reset OI cache for safety */
1888 oti->oti_ins_cache_used = 0;
1890 remove_agents = oh->ot_remove_agents;
1892 qtrans = oh->ot_quota_trans;
1893 oh->ot_quota_trans = NULL;
1895 if (oh->ot_handle != NULL) {
1897 handle_t *hdl = oh->ot_handle;
1900 * add commit callback
1901 * notice we don't do this in osd_trans_start()
1902 * as underlying transaction can change during truncate
1904 ldiskfs_journal_callback_add(hdl, osd_trans_commit_cb,
1907 LASSERT(oti->oti_txns == 1);
1910 rc = dt_txn_hook_stop(env, th);
1912 CERROR("%s: failed in transaction hook: rc = %d\n",
1915 osd_trans_stop_cb(oh, rc);
1916 /* hook functions might modify th_sync */
1917 hdl->h_sync = th->th_sync;
1919 oh->ot_handle = NULL;
1920 OSD_CHECK_SLOW_TH(oh, osd, rc2 = ldiskfs_journal_stop(hdl));
1922 CERROR("%s: failed to stop transaction: rc = %d\n",
1923 osd_name(osd), rc2);
1927 osd_trans_stop_cb(oh, th->th_result);
1931 /* inform the quota slave device that the transaction is stopping */
1932 qsd_op_end(env, qsd, qtrans);
1934 /* as we want IO to journal and data IO be concurrent, we don't block
1935 * awaiting data IO completion in osd_do_bio(), instead we wait here
1936 * once transaction is submitted to the journal. all reqular requests
1937 * don't do direct IO (except read/write), thus this wait_event becomes
1940 * IMPORTANT: we have to wait till any IO submited by the thread is
1941 * completed otherwise iobuf may be corrupted by different request
1943 wait_event(iobuf->dr_wait,
1944 atomic_read(&iobuf->dr_numreqs) == 0);
1945 osd_fini_iobuf(osd, iobuf);
1947 rc = iobuf->dr_error;
1949 if (unlikely(remove_agents != 0))
1950 osd_process_scheduled_agent_removals(env, osd);
1952 sb_end_write(osd_sb(osd));
1957 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
1959 struct osd_thandle *oh = container_of0(th, struct osd_thandle,
1962 LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
1963 LASSERT(&dcb->dcb_func != NULL);
1964 if (dcb->dcb_flags & DCB_TRANS_STOP)
1965 list_add(&dcb->dcb_linkage, &oh->ot_stop_dcb_list);
1967 list_add(&dcb->dcb_linkage, &oh->ot_commit_dcb_list);
1973 * Called just before object is freed. Releases all resources except for
1974 * object itself (that is released by osd_object_free()).
1976 * Concurrency: no concurrent access is possible that late in object
1979 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
1981 struct osd_object *obj = osd_obj(l);
1982 struct inode *inode = obj->oo_inode;
1984 LINVRNT(osd_invariant(obj));
1987 * If object is unlinked remove fid->ino mapping from object index.
1990 osd_index_fini(obj);
1991 if (inode != NULL) {
1992 struct qsd_instance *qsd = osd_obj2dev(obj)->od_quota_slave;
1993 qid_t uid = i_uid_read(inode);
1994 qid_t gid = i_gid_read(inode);
1997 obj->oo_inode = NULL;
2000 struct osd_thread_info *info = osd_oti_get(env);
2001 struct lquota_id_info *qi = &info->oti_qi;
2003 /* Release granted quota to master if necessary */
2004 qi->lqi_id.qid_uid = uid;
2005 qsd_op_adjust(env, qsd, &qi->lqi_id, USRQUOTA);
2007 qi->lqi_id.qid_uid = gid;
2008 qsd_op_adjust(env, qsd, &qi->lqi_id, GRPQUOTA);
2010 qi->lqi_id.qid_uid = i_projid_read(inode);
2011 qsd_op_adjust(env, qsd, &qi->lqi_id, PRJQUOTA);
2017 * Concurrency: ->loo_object_release() is called under site spin-lock.
2019 static void osd_object_release(const struct lu_env *env,
2020 struct lu_object *l)
2022 struct osd_object *o = osd_obj(l);
2023 /* nobody should be releasing a non-destroyed object with nlink=0
2024 * the API allows this, but ldiskfs doesn't like and then report
2025 * this inode as deleted */
2026 if (unlikely(!o->oo_destroyed && o->oo_inode && o->oo_inode->i_nlink == 0))
2031 * Concurrency: shouldn't matter.
2033 static int osd_object_print(const struct lu_env *env, void *cookie,
2034 lu_printer_t p, const struct lu_object *l)
2036 struct osd_object *o = osd_obj(l);
2037 struct iam_descr *d;
2039 if (o->oo_dir != NULL)
2040 d = o->oo_dir->od_container.ic_descr;
2043 return (*p)(env, cookie,
2044 LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
2046 o->oo_inode ? o->oo_inode->i_ino : 0UL,
2047 o->oo_inode ? o->oo_inode->i_generation : 0,
2048 d ? d->id_ops->id_name : "plain");
2052 * Concurrency: shouldn't matter.
2054 int osd_statfs(const struct lu_env *env, struct dt_device *d,
2055 struct obd_statfs *sfs)
2057 struct osd_device *osd = osd_dt_dev(d);
2058 struct super_block *sb = osd_sb(osd);
2059 struct kstatfs *ksfs;
2063 if (unlikely(osd->od_mnt == NULL))
2064 return -EINPROGRESS;
2066 /* osd_lproc.c call this without env, allocate ksfs for that case */
2067 if (unlikely(env == NULL)) {
2068 OBD_ALLOC_PTR(ksfs);
2072 ksfs = &osd_oti_get(env)->oti_ksfs;
2075 result = sb->s_op->statfs(sb->s_root, ksfs);
2079 statfs_pack(sfs, ksfs);
2080 if (unlikely(sb->s_flags & MS_RDONLY))
2081 sfs->os_state |= OS_STATE_READONLY;
2082 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb,
2083 LDISKFS_FEATURE_INCOMPAT_EXTENTS))
2084 sfs->os_maxbytes = sb->s_maxbytes;
2086 sfs->os_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2089 * Reserve some space so to avoid fragmenting the filesystem too much.
2090 * Fragmentation not only impacts performance, but can also increase
2091 * metadata overhead significantly, causing grant calculation to be
2094 * Reserve 0.78% of total space, at least 8MB for small filesystems.
2096 CLASSERT(OSD_STATFS_RESERVED > LDISKFS_MAX_BLOCK_SIZE);
2097 reserved = OSD_STATFS_RESERVED >> sb->s_blocksize_bits;
2098 if (likely(sfs->os_blocks >= reserved << OSD_STATFS_RESERVED_SHIFT))
2099 reserved = sfs->os_blocks >> OSD_STATFS_RESERVED_SHIFT;
2101 sfs->os_blocks -= reserved;
2102 sfs->os_bfree -= min(reserved, sfs->os_bfree);
2103 sfs->os_bavail -= min(reserved, sfs->os_bavail);
2106 if (unlikely(env == NULL))
2112 * Estimate space needed for file creations. We assume the largest filename
2113 * which is 2^64 - 1, hence a filename of 20 chars.
2114 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
2116 #ifdef __LDISKFS_DIR_REC_LEN
2117 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
2119 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
2123 * Concurrency: doesn't access mutable data.
2125 static void osd_conf_get(const struct lu_env *env,
2126 const struct dt_device *dev,
2127 struct dt_device_param *param)
2129 struct super_block *sb = osd_sb(osd_dt_dev(dev));
2133 * XXX should be taken from not-yet-existing fs abstraction layer.
2135 param->ddp_max_name_len = LDISKFS_NAME_LEN;
2136 param->ddp_max_nlink = LDISKFS_LINK_MAX;
2137 param->ddp_symlink_max = sb->s_blocksize;
2138 param->ddp_mount_type = LDD_MT_LDISKFS;
2139 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EXTENTS))
2140 param->ddp_maxbytes = sb->s_maxbytes;
2142 param->ddp_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2143 /* inode are statically allocated, so per-inode space consumption
2144 * is the space consumed by the directory entry */
2145 param->ddp_inodespace = PER_OBJ_USAGE;
2146 /* EXT_INIT_MAX_LEN is the theoretical maximum extent size (32k blocks
2147 * = 128MB) which is unlikely to be hit in real life. Report a smaller
2148 * maximum length to not under count the actual number of extents
2149 * needed for writing a file. */
2150 param->ddp_max_extent_blks = EXT_INIT_MAX_LEN >> 2;
2151 /* worst-case extent insertion metadata overhead */
2152 param->ddp_extent_tax = 6 * LDISKFS_BLOCK_SIZE(sb);
2153 param->ddp_mntopts = 0;
2154 if (test_opt(sb, XATTR_USER))
2155 param->ddp_mntopts |= MNTOPT_USERXATTR;
2156 if (test_opt(sb, POSIX_ACL))
2157 param->ddp_mntopts |= MNTOPT_ACL;
2159 /* LOD might calculate the max stripe count based on max_ea_size,
2160 * so we need take account in the overhead as well,
2161 * xattr_header + magic + xattr_entry_head */
2162 ea_overhead = sizeof(struct ldiskfs_xattr_header) + sizeof(__u32) +
2163 LDISKFS_XATTR_LEN(XATTR_NAME_MAX_LEN);
2165 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
2166 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EA_INODE))
2167 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE -
2171 param->ddp_max_ea_size = sb->s_blocksize - ea_overhead;
2173 /* Preferred RPC size for efficient disk IO. 4MB shows good
2174 * all-around performance for ldiskfs, but use bigalloc chunk size
2175 * by default if larger. */
2176 #if defined(LDISKFS_CLUSTER_SIZE)
2177 if (LDISKFS_CLUSTER_SIZE(sb) > DT_DEF_BRW_SIZE)
2178 param->ddp_brw_size = LDISKFS_CLUSTER_SIZE(sb);
2181 param->ddp_brw_size = DT_DEF_BRW_SIZE;
2185 * Concurrency: shouldn't matter.
2187 static int osd_sync(const struct lu_env *env, struct dt_device *d)
2191 CDEBUG(D_CACHE, "%s: syncing OSD\n", osd_dt_dev(d)->od_svname);
2193 rc = ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
2195 CDEBUG(D_CACHE, "%s: synced OSD: rc = %d\n", osd_dt_dev(d)->od_svname,
2202 * Start commit for OSD device.
2204 * An implementation of dt_commit_async method for OSD device.
2205 * Asychronously starts underlayng fs sync and thereby a transaction
2208 * \param env environment
2209 * \param d dt device
2211 * \see dt_device_operations
2213 static int osd_commit_async(const struct lu_env *env,
2214 struct dt_device *d)
2216 struct super_block *s = osd_sb(osd_dt_dev(d));
2219 CDEBUG(D_HA, "%s: async commit OSD\n", osd_dt_dev(d)->od_svname);
2220 RETURN(s->s_op->sync_fs(s, 0));
2223 /* Our own copy of the set readonly functions if present, or NU if not. */
2224 static int (*priv_dev_set_rdonly)(struct block_device *bdev);
2225 static int (*priv_dev_check_rdonly)(struct block_device *bdev);
2226 /* static int (*priv_dev_clear_rdonly)(struct block_device *bdev); */
2229 * Concurrency: shouldn't matter.
2231 static int osd_ro(const struct lu_env *env, struct dt_device *d)
2233 struct super_block *sb = osd_sb(osd_dt_dev(d));
2234 struct block_device *dev = sb->s_bdev;
2235 int rc = -EOPNOTSUPP;
2238 if (priv_dev_set_rdonly) {
2239 struct block_device *jdev = LDISKFS_SB(sb)->journal_bdev;
2242 CERROR("*** setting %s read-only ***\n",
2243 osd_dt_dev(d)->od_svname);
2245 if (sb->s_op->freeze_fs) {
2246 rc = sb->s_op->freeze_fs(sb);
2251 if (jdev && (jdev != dev)) {
2252 CDEBUG(D_IOCTL | D_HA, "set journal dev %lx rdonly\n",
2254 priv_dev_set_rdonly(jdev);
2256 CDEBUG(D_IOCTL | D_HA, "set dev %lx rdonly\n", (long)dev);
2257 priv_dev_set_rdonly(dev);
2259 if (sb->s_op->unfreeze_fs)
2260 sb->s_op->unfreeze_fs(sb);
2265 CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
2266 osd_dt_dev(d)->od_svname, (long)dev, rc);
2272 * Note: we do not count into QUOTA here.
2273 * If we mount with --data_journal we may need more.
2275 const int osd_dto_credits_noquota[DTO_NR] = {
2278 * INDEX_EXTRA_TRANS_BLOCKS(8) +
2279 * SINGLEDATA_TRANS_BLOCKS(8)
2280 * XXX Note: maybe iam need more, since iam have more level than
2283 [DTO_INDEX_INSERT] = 16,
2286 * just modify a single entry, probably merge few within a block
2288 [DTO_INDEX_DELETE] = 1,
2292 [DTO_INDEX_UPDATE] = 16,
2294 * 4(inode, inode bits, groups, GDT)
2295 * notice: OI updates are counted separately with DTO_INDEX_INSERT
2297 [DTO_OBJECT_CREATE] = 4,
2299 * 4(inode, inode bits, groups, GDT)
2300 * notice: OI updates are counted separately with DTO_INDEX_DELETE
2302 [DTO_OBJECT_DELETE] = 4,
2304 * Attr set credits (inode)
2306 [DTO_ATTR_SET_BASE] = 1,
2308 * Xattr set. The same as xattr of EXT3.
2309 * DATA_TRANS_BLOCKS(14)
2310 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
2311 * are also counted in. Do not know why?
2313 [DTO_XATTR_SET] = 14,
2315 * credits for inode change during write.
2317 [DTO_WRITE_BASE] = 3,
2319 * credits for single block write.
2321 [DTO_WRITE_BLOCK] = 14,
2323 * Attr set credits for chown.
2324 * This is extra credits for setattr, and it is null without quota
2326 [DTO_ATTR_SET_CHOWN] = 0
2329 static const struct dt_device_operations osd_dt_ops = {
2330 .dt_root_get = osd_root_get,
2331 .dt_statfs = osd_statfs,
2332 .dt_trans_create = osd_trans_create,
2333 .dt_trans_start = osd_trans_start,
2334 .dt_trans_stop = osd_trans_stop,
2335 .dt_trans_cb_add = osd_trans_cb_add,
2336 .dt_conf_get = osd_conf_get,
2337 .dt_sync = osd_sync,
2339 .dt_commit_async = osd_commit_async,
2342 static void osd_read_lock(const struct lu_env *env, struct dt_object *dt,
2345 struct osd_object *obj = osd_dt_obj(dt);
2346 struct osd_thread_info *oti = osd_oti_get(env);
2348 LINVRNT(osd_invariant(obj));
2350 LASSERT(obj->oo_owner != env);
2351 down_read_nested(&obj->oo_sem, role);
2353 LASSERT(obj->oo_owner == NULL);
2357 static void osd_write_lock(const struct lu_env *env, struct dt_object *dt,
2360 struct osd_object *obj = osd_dt_obj(dt);
2361 struct osd_thread_info *oti = osd_oti_get(env);
2363 LINVRNT(osd_invariant(obj));
2365 LASSERT(obj->oo_owner != env);
2366 down_write_nested(&obj->oo_sem, role);
2368 LASSERT(obj->oo_owner == NULL);
2369 obj->oo_owner = env;
2373 static void osd_read_unlock(const struct lu_env *env, struct dt_object *dt)
2375 struct osd_object *obj = osd_dt_obj(dt);
2376 struct osd_thread_info *oti = osd_oti_get(env);
2378 LINVRNT(osd_invariant(obj));
2380 LASSERT(oti->oti_r_locks > 0);
2382 up_read(&obj->oo_sem);
2385 static void osd_write_unlock(const struct lu_env *env, struct dt_object *dt)
2387 struct osd_object *obj = osd_dt_obj(dt);
2388 struct osd_thread_info *oti = osd_oti_get(env);
2390 LINVRNT(osd_invariant(obj));
2392 LASSERT(obj->oo_owner == env);
2393 LASSERT(oti->oti_w_locks > 0);
2395 obj->oo_owner = NULL;
2396 up_write(&obj->oo_sem);
2399 static int osd_write_locked(const struct lu_env *env, struct dt_object *dt)
2401 struct osd_object *obj = osd_dt_obj(dt);
2403 LINVRNT(osd_invariant(obj));
2405 return obj->oo_owner == env;
2408 static struct timespec *osd_inode_time(const struct lu_env *env,
2409 struct inode *inode, __u64 seconds)
2411 struct osd_thread_info *oti = osd_oti_get(env);
2412 struct timespec *t = &oti->oti_time;
2414 t->tv_sec = seconds;
2416 *t = timespec_trunc(*t, inode->i_sb->s_time_gran);
2420 static void osd_inode_getattr(const struct lu_env *env,
2421 struct inode *inode, struct lu_attr *attr)
2423 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
2424 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
2425 LA_PROJID | LA_FLAGS | LA_NLINK | LA_RDEV |
2426 LA_BLKSIZE | LA_TYPE;
2428 attr->la_atime = LTIME_S(inode->i_atime);
2429 attr->la_mtime = LTIME_S(inode->i_mtime);
2430 attr->la_ctime = LTIME_S(inode->i_ctime);
2431 attr->la_mode = inode->i_mode;
2432 attr->la_size = i_size_read(inode);
2433 attr->la_blocks = inode->i_blocks;
2434 attr->la_uid = i_uid_read(inode);
2435 attr->la_gid = i_gid_read(inode);
2436 attr->la_projid = i_projid_read(inode);
2437 attr->la_flags = ll_inode_to_ext_flags(inode->i_flags);
2438 attr->la_nlink = inode->i_nlink;
2439 attr->la_rdev = inode->i_rdev;
2440 attr->la_blksize = 1 << inode->i_blkbits;
2441 attr->la_blkbits = inode->i_blkbits;
2443 * Ext4 did not transfer inherit flags from raw inode
2444 * to inode flags, and ext4 internally test raw inode
2445 * @i_flags directly. Instead of patching ext4, we do it here.
2447 if (LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL)
2448 attr->la_flags |= LUSTRE_PROJINHERIT_FL;
2451 static int osd_attr_get(const struct lu_env *env,
2452 struct dt_object *dt,
2453 struct lu_attr *attr)
2455 struct osd_object *obj = osd_dt_obj(dt);
2457 if (unlikely(!dt_object_exists(dt)))
2459 if (unlikely(obj->oo_destroyed))
2462 LASSERT(!dt_object_remote(dt));
2463 LINVRNT(osd_invariant(obj));
2465 spin_lock(&obj->oo_guard);
2466 osd_inode_getattr(env, obj->oo_inode, attr);
2467 if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL)
2468 attr->la_flags |= LUSTRE_ORPHAN_FL;
2469 spin_unlock(&obj->oo_guard);
2474 static int osd_declare_attr_qid(const struct lu_env *env,
2475 struct osd_object *obj,
2476 struct osd_thandle *oh, long long bspace,
2477 qid_t old_id, qid_t new_id, bool enforce,
2481 struct osd_thread_info *info = osd_oti_get(env);
2482 struct lquota_id_info *qi = &info->oti_qi;
2484 qi->lqi_type = type;
2485 /* inode accounting */
2486 qi->lqi_is_blk = false;
2488 /* one more inode for the new id ... */
2489 qi->lqi_id.qid_uid = new_id;
2491 /* Reserve credits for the new id */
2492 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
2493 if (rc == -EDQUOT || rc == -EINPROGRESS)
2498 /* and one less inode for the current id */
2499 qi->lqi_id.qid_uid = old_id;
2501 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2502 if (rc == -EDQUOT || rc == -EINPROGRESS)
2507 /* block accounting */
2508 qi->lqi_is_blk = true;
2510 /* more blocks for the new id ... */
2511 qi->lqi_id.qid_uid = new_id;
2512 qi->lqi_space = bspace;
2514 * Credits for the new uid has been reserved, re-use "obj"
2515 * to save credit reservation.
2517 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2518 if (rc == -EDQUOT || rc == -EINPROGRESS)
2523 /* and finally less blocks for the current uid */
2524 qi->lqi_id.qid_uid = old_id;
2525 qi->lqi_space = -bspace;
2526 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2527 if (rc == -EDQUOT || rc == -EINPROGRESS)
2533 static int osd_declare_attr_set(const struct lu_env *env,
2534 struct dt_object *dt,
2535 const struct lu_attr *attr,
2536 struct thandle *handle)
2538 struct osd_thandle *oh;
2539 struct osd_object *obj;
2547 LASSERT(dt != NULL);
2548 LASSERT(handle != NULL);
2550 obj = osd_dt_obj(dt);
2551 LASSERT(osd_invariant(obj));
2553 oh = container_of0(handle, struct osd_thandle, ot_super);
2554 LASSERT(oh->ot_handle == NULL);
2556 osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
2557 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2559 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
2560 osd_dto_credits_noquota[DTO_XATTR_SET]);
2562 if (attr == NULL || obj->oo_inode == NULL)
2565 bspace = obj->oo_inode->i_blocks;
2566 bspace <<= obj->oo_inode->i_sb->s_blocksize_bits;
2567 bspace = toqb(bspace);
2569 /* Changing ownership is always preformed by super user, it should not
2572 * We still need to call the osd_declare_qid() to calculate the journal
2573 * credits for updating quota accounting files and to trigger quota
2574 * space adjustment once the operation is completed.*/
2575 if (attr->la_valid & LA_UID || attr->la_valid & LA_GID) {
2577 uid = i_uid_read(obj->oo_inode);
2578 enforce = (attr->la_valid & LA_UID) && (attr->la_uid != uid);
2579 rc = osd_declare_attr_qid(env, obj, oh, bspace, uid,
2580 attr->la_uid, enforce, USRQUOTA);
2584 gid = i_gid_read(obj->oo_inode);
2585 enforce = (attr->la_valid & LA_GID) && (attr->la_gid != gid);
2586 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2587 i_gid_read(obj->oo_inode),
2588 attr->la_gid, enforce, GRPQUOTA);
2593 #ifdef HAVE_PROJECT_QUOTA
2594 if (attr->la_valid & LA_PROJID) {
2595 __u32 projid = i_projid_read(obj->oo_inode);
2596 enforce = (attr->la_valid & LA_PROJID) &&
2597 (attr->la_projid != projid);
2598 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2599 (qid_t)projid, (qid_t)attr->la_projid,
2608 static int osd_inode_setattr(const struct lu_env *env,
2609 struct inode *inode, const struct lu_attr *attr)
2611 __u64 bits = attr->la_valid;
2613 /* Only allow set size for regular file */
2614 if (!S_ISREG(inode->i_mode))
2615 bits &= ~(LA_SIZE | LA_BLOCKS);
2620 if (bits & LA_ATIME)
2621 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
2622 if (bits & LA_CTIME)
2623 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
2624 if (bits & LA_MTIME)
2625 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
2626 if (bits & LA_SIZE) {
2627 spin_lock(&inode->i_lock);
2628 LDISKFS_I(inode)->i_disksize = attr->la_size;
2629 i_size_write(inode, attr->la_size);
2630 spin_unlock(&inode->i_lock);
2633 /* OSD should not change "i_blocks" which is used by quota.
2634 * "i_blocks" should be changed by ldiskfs only. */
2636 inode->i_mode = (inode->i_mode & S_IFMT) |
2637 (attr->la_mode & ~S_IFMT);
2639 i_uid_write(inode, attr->la_uid);
2641 i_gid_write(inode, attr->la_gid);
2642 if (bits & LA_PROJID)
2643 i_projid_write(inode, attr->la_projid);
2644 if (bits & LA_NLINK)
2645 set_nlink(inode, attr->la_nlink);
2647 inode->i_rdev = attr->la_rdev;
2649 if (bits & LA_FLAGS) {
2650 /* always keep S_NOCMTIME */
2651 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
2654 * Ext4 did not transfer inherit flags from
2655 * @inode->i_flags to raw inode i_flags when writing
2656 * flags, we do it explictly here.
2658 if (attr->la_flags & LUSTRE_PROJINHERIT_FL)
2659 LDISKFS_I(inode)->i_flags |= LUSTRE_PROJINHERIT_FL;
2661 LDISKFS_I(inode)->i_flags &= ~LUSTRE_PROJINHERIT_FL;
2666 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
2670 if ((attr->la_valid & LA_UID && attr->la_uid != i_uid_read(inode)) ||
2671 (attr->la_valid & LA_GID && attr->la_gid != i_gid_read(inode))) {
2674 ll_vfs_dq_init(inode);
2676 if (attr->la_valid & LA_UID)
2677 iattr.ia_valid |= ATTR_UID;
2678 if (attr->la_valid & LA_GID)
2679 iattr.ia_valid |= ATTR_GID;
2680 iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
2681 iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
2683 rc = ll_vfs_dq_transfer(inode, &iattr);
2685 CERROR("%s: quota transfer failed: rc = %d. Is quota "
2686 "enforcement enabled on the ldiskfs "
2687 "filesystem?\n", inode->i_sb->s_id, rc);
2692 /* Handle project id transfer here properly */
2693 if (attr->la_valid & LA_PROJID &&
2694 attr->la_projid != i_projid_read(inode)) {
2695 #ifdef HAVE_PROJECT_QUOTA
2696 rc = ldiskfs_transfer_project(inode, attr->la_projid);
2701 CERROR("%s: quota transfer failed: rc = %d. Is project "
2702 "enforcement enabled on the ldiskfs "
2703 "filesystem?\n", inode->i_sb->s_id, rc);
2710 static int osd_attr_set(const struct lu_env *env,
2711 struct dt_object *dt,
2712 const struct lu_attr *attr,
2713 struct thandle *handle)
2715 struct osd_object *obj = osd_dt_obj(dt);
2716 struct inode *inode;
2719 if (!dt_object_exists(dt))
2722 LASSERT(handle != NULL);
2723 LASSERT(!dt_object_remote(dt));
2724 LASSERT(osd_invariant(obj));
2726 osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
2728 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING) &&
2729 !osd_obj2dev(obj)->od_is_ost) {
2730 struct osd_thread_info *oti = osd_oti_get(env);
2731 const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
2732 struct lu_fid *fid1 = &oti->oti_fid;
2733 struct osd_inode_id *id = &oti->oti_id;
2734 struct iam_path_descr *ipd;
2735 struct iam_container *bag;
2736 struct osd_thandle *oh;
2739 fid_cpu_to_be(fid1, fid0);
2740 memset(id, 1, sizeof(*id));
2741 bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
2742 fid0)->oi_dir.od_container;
2743 ipd = osd_idx_ipd_get(env, bag);
2744 if (unlikely(ipd == NULL))
2747 oh = container_of0(handle, struct osd_thandle, ot_super);
2748 rc = iam_update(oh->ot_handle, bag, (const struct iam_key *)fid1,
2749 (const struct iam_rec *)id, ipd);
2750 osd_ipd_put(env, bag, ipd);
2751 return(rc > 0 ? 0 : rc);
2754 inode = obj->oo_inode;
2756 rc = osd_quota_transfer(inode, attr);
2760 spin_lock(&obj->oo_guard);
2761 rc = osd_inode_setattr(env, inode, attr);
2762 spin_unlock(&obj->oo_guard);
2766 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2768 if (!(attr->la_valid & LA_FLAGS))
2771 /* Let's check if there are extra flags need to be set into LMA */
2772 if (attr->la_flags & LUSTRE_LMA_FL_MASKS) {
2773 struct osd_thread_info *info = osd_oti_get(env);
2774 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
2776 LASSERT(!obj->oo_pfid_in_lma);
2778 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
2779 &info->oti_ost_attrs);
2783 lma->lma_incompat |=
2784 lustre_to_lma_flags(attr->la_flags);
2785 lustre_lma_swab(lma);
2786 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA,
2787 lma, sizeof(*lma), XATTR_REPLACE);
2789 struct osd_device *osd = osd_obj2dev(obj);
2791 CWARN("%s: set "DFID" lma flags %u failed: rc = %d\n",
2792 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)),
2793 lma->lma_incompat, rc);
2796 attr->la_flags & LUSTRE_LMA_FL_MASKS;
2798 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
2801 osd_trans_exec_check(env, handle, OSD_OT_ATTR_SET);
2806 static struct dentry *osd_child_dentry_get(const struct lu_env *env,
2807 struct osd_object *obj,
2808 const char *name, const int namelen)
2810 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
2813 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
2814 umode_t mode, struct dt_allocation_hint *hint,
2818 struct osd_device *osd = osd_obj2dev(obj);
2819 struct osd_thandle *oth;
2820 struct dt_object *parent = NULL;
2821 struct inode *inode;
2823 LINVRNT(osd_invariant(obj));
2824 LASSERT(obj->oo_inode == NULL);
2825 LASSERT(obj->oo_hl_head == NULL);
2827 if (S_ISDIR(mode) && ldiskfs_pdo) {
2828 obj->oo_hl_head =ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
2829 if (obj->oo_hl_head == NULL)
2833 oth = container_of(th, struct osd_thandle, ot_super);
2834 LASSERT(oth->ot_handle->h_transaction != NULL);
2836 if (hint != NULL && hint->dah_parent != NULL &&
2837 !dt_object_remote(hint->dah_parent))
2838 parent = hint->dah_parent;
2840 inode = ldiskfs_create_inode(oth->ot_handle,
2841 parent ? osd_dt_obj(parent)->oo_inode :
2842 osd_sb(osd)->s_root->d_inode,
2844 if (!IS_ERR(inode)) {
2845 /* Do not update file c/mtime in ldiskfs. */
2846 inode->i_flags |= S_NOCMTIME;
2848 /* For new created object, it must be consistent,
2849 * and it is unnecessary to scrub against it. */
2850 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
2852 obj->oo_inode = inode;
2855 if (obj->oo_hl_head != NULL) {
2856 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
2857 obj->oo_hl_head = NULL;
2859 result = PTR_ERR(inode);
2861 LINVRNT(osd_invariant(obj));
2869 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
2870 struct lu_attr *attr,
2871 struct dt_allocation_hint *hint,
2872 struct dt_object_format *dof,
2876 struct osd_thandle *oth;
2877 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX | S_ISGID));
2879 LASSERT(S_ISDIR(attr->la_mode));
2881 oth = container_of(th, struct osd_thandle, ot_super);
2882 LASSERT(oth->ot_handle->h_transaction != NULL);
2883 result = osd_mkfile(info, obj, mode, hint, th);
2888 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
2889 struct lu_attr *attr,
2890 struct dt_allocation_hint *hint,
2891 struct dt_object_format *dof,
2895 struct osd_thandle *oth;
2896 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
2898 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
2900 LASSERT(S_ISREG(attr->la_mode));
2902 oth = container_of(th, struct osd_thandle, ot_super);
2903 LASSERT(oth->ot_handle->h_transaction != NULL);
2905 result = osd_mkfile(info, obj, mode, hint, th);
2907 LASSERT(obj->oo_inode != NULL);
2908 if (feat->dif_flags & DT_IND_VARKEY)
2909 result = iam_lvar_create(obj->oo_inode,
2910 feat->dif_keysize_max,
2912 feat->dif_recsize_max,
2915 result = iam_lfix_create(obj->oo_inode,
2916 feat->dif_keysize_max,
2918 feat->dif_recsize_max,
2925 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
2926 struct lu_attr *attr,
2927 struct dt_allocation_hint *hint,
2928 struct dt_object_format *dof,
2931 LASSERT(S_ISREG(attr->la_mode));
2932 return osd_mkfile(info, obj, (attr->la_mode &
2933 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
2936 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
2937 struct lu_attr *attr,
2938 struct dt_allocation_hint *hint,
2939 struct dt_object_format *dof,
2942 LASSERT(S_ISLNK(attr->la_mode));
2943 return osd_mkfile(info, obj, (attr->la_mode &
2944 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
2947 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
2948 struct lu_attr *attr,
2949 struct dt_allocation_hint *hint,
2950 struct dt_object_format *dof,
2953 umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
2956 LINVRNT(osd_invariant(obj));
2957 LASSERT(obj->oo_inode == NULL);
2958 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
2959 S_ISFIFO(mode) || S_ISSOCK(mode));
2961 result = osd_mkfile(info, obj, mode, hint, th);
2963 LASSERT(obj->oo_inode != NULL);
2965 * This inode should be marked dirty for i_rdev. Currently
2966 * that is done in the osd_attr_init().
2968 init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
2971 LINVRNT(osd_invariant(obj));
2975 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
2977 struct dt_allocation_hint *hint,
2978 struct dt_object_format *dof,
2981 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
2983 osd_obj_type_f result;
2999 result = osd_mk_index;
3010 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
3011 struct dt_object *parent, struct dt_object *child,
3016 ah->dah_parent = parent;
3017 ah->dah_mode = child_mode;
3019 if (parent != NULL && !dt_object_remote(parent)) {
3020 /* will help to find FID->ino at dt_insert("..") */
3021 struct osd_object *pobj = osd_dt_obj(parent);
3022 osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
3026 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
3027 struct lu_attr *attr, struct dt_object_format *dof)
3029 struct inode *inode = obj->oo_inode;
3030 __u64 valid = attr->la_valid;
3033 attr->la_valid &= ~(LA_TYPE | LA_MODE);
3035 if (dof->dof_type != DFT_NODE)
3036 attr->la_valid &= ~LA_RDEV;
3037 if ((valid & LA_ATIME) && (attr->la_atime == LTIME_S(inode->i_atime)))
3038 attr->la_valid &= ~LA_ATIME;
3039 if ((valid & LA_CTIME) && (attr->la_ctime == LTIME_S(inode->i_ctime)))
3040 attr->la_valid &= ~LA_CTIME;
3041 if ((valid & LA_MTIME) && (attr->la_mtime == LTIME_S(inode->i_mtime)))
3042 attr->la_valid &= ~LA_MTIME;
3044 result = osd_quota_transfer(inode, attr);
3048 if (attr->la_valid != 0) {
3049 result = osd_inode_setattr(info->oti_env, inode, attr);
3051 * The osd_inode_setattr() should always succeed here. The
3052 * only error that could be returned is EDQUOT when we are
3053 * trying to change the UID or GID of the inode. However, this
3054 * should not happen since quota enforcement is no longer
3055 * enabled on ldiskfs (lquota takes care of it).
3057 LASSERTF(result == 0, "%d\n", result);
3058 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3061 attr->la_valid = valid;
3065 * Helper function for osd_create()
3067 * \retval 0, on success
3069 static int __osd_create(struct osd_thread_info *info, struct osd_object *obj,
3070 struct lu_attr *attr, struct dt_allocation_hint *hint,
3071 struct dt_object_format *dof, struct thandle *th)
3076 osd_trans_exec_op(info->oti_env, th, OSD_OT_CREATE);
3078 /* we drop umask so that permissions we pass are not affected */
3079 umask = current->fs->umask;
3080 current->fs->umask = 0;
3082 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
3084 if (likely(obj->oo_inode != NULL)) {
3085 LASSERT(obj->oo_inode->i_state & I_NEW);
3087 /* Unlock the inode before attr initialization to avoid
3088 * unnecessary dqget operations. LU-6378 */
3089 unlock_new_inode(obj->oo_inode);
3092 if (likely(result == 0)) {
3093 osd_attr_init(info, obj, attr, dof);
3094 osd_object_init0(obj);
3097 /* restore previous umask value */
3098 current->fs->umask = umask;
3100 osd_trans_exec_check(info->oti_env, th, OSD_OT_CREATE);
3106 * Helper function for osd_create()
3108 * \retval 0, on success
3110 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
3111 const struct lu_fid *fid, struct thandle *th)
3113 struct osd_thread_info *info = osd_oti_get(env);
3114 struct osd_inode_id *id = &info->oti_id;
3115 struct osd_device *osd = osd_obj2dev(obj);
3116 struct osd_thandle *oh;
3119 LASSERT(obj->oo_inode != NULL);
3121 oh = container_of0(th, struct osd_thandle, ot_super);
3122 LASSERT(oh->ot_handle);
3123 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3125 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
3126 rc = osd_oi_insert(info, osd, fid, id, oh->ot_handle,
3127 OI_CHECK_FLD, NULL);
3128 osd_trans_exec_check(env, th, OSD_OT_INSERT);
3133 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
3134 u64 seq, struct lu_seq_range *range)
3136 struct seq_server_site *ss = osd_seq_site(osd);
3138 if (fid_seq_is_idif(seq)) {
3139 fld_range_set_ost(range);
3140 range->lsr_index = idif_ost_idx(seq);
3144 if (!fid_seq_in_fldb(seq)) {
3145 fld_range_set_mdt(range);
3147 /* FIXME: If ss is NULL, it suppose not get lsr_index
3149 range->lsr_index = ss->ss_node_id;
3153 LASSERT(ss != NULL);
3154 fld_range_set_any(range);
3155 /* OSD will only do local fld lookup */
3156 return fld_local_lookup(env, ss->ss_server_fld, seq, range);
3159 static int osd_declare_create(const struct lu_env *env, struct dt_object *dt,
3160 struct lu_attr *attr,
3161 struct dt_allocation_hint *hint,
3162 struct dt_object_format *dof,
3163 struct thandle *handle)
3165 struct osd_thandle *oh;
3169 LASSERT(handle != NULL);
3171 oh = container_of0(handle, struct osd_thandle, ot_super);
3172 LASSERT(oh->ot_handle == NULL);
3174 /* EA object consumes more credits than regular object: osd_mk_index
3175 * vs. osd_mkreg: osd_mk_index will create 2 blocks for root_node and
3176 * leaf_node, could involves the block, block bitmap, groups, GDT
3177 * change for each block, so add 4 * 2 credits in that case. */
3178 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
3179 osd_dto_credits_noquota[DTO_OBJECT_CREATE] +
3180 (dof->dof_type == DFT_INDEX) ? 4 * 2 : 0);
3181 /* Reuse idle OI block may cause additional one OI block
3183 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3184 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
3189 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid,
3190 attr->la_projid, 1, oh, osd_dt_obj(dt),
3191 NULL, OSD_QID_INODE);
3195 /* will help to find FID->ino mapping at dt_insert() */
3196 rc = osd_idc_find_and_init(env, osd_obj2dev(osd_dt_obj(dt)),
3203 * Called to destroy on-disk representation of the object
3205 * Concurrency: must be locked
3207 static int osd_declare_destroy(const struct lu_env *env, struct dt_object *dt,
3210 struct osd_object *obj = osd_dt_obj(dt);
3211 struct inode *inode = obj->oo_inode;
3212 struct osd_thandle *oh;
3219 oh = container_of0(th, struct osd_thandle, ot_super);
3220 LASSERT(oh->ot_handle == NULL);
3222 osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
3223 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
3225 /* For removing agent entry */
3226 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu))
3227 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
3229 /* Recycle idle OI leaf may cause additional three OI blocks
3231 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3232 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3233 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
3234 /* one less inode */
3235 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3236 i_projid_read(inode), -1, oh, obj, NULL,
3240 /* data to be truncated */
3241 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3242 i_projid_read(inode), 0, oh, obj, NULL,
3247 /* will help to find FID->ino when this object is being
3248 * added to PENDING/ */
3249 rc = osd_idc_find_and_init(env, osd_obj2dev(obj), obj);
3254 static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
3257 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3258 struct osd_object *obj = osd_dt_obj(dt);
3259 struct inode *inode = obj->oo_inode;
3260 struct osd_device *osd = osd_obj2dev(obj);
3261 struct osd_thandle *oh;
3265 oh = container_of0(th, struct osd_thandle, ot_super);
3266 LASSERT(oh->ot_handle);
3268 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
3270 if (unlikely(fid_is_acct(fid)))
3273 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu)) {
3274 result = osd_delete_from_remote_parent(env, osd, obj, oh, true);
3276 CERROR("%s: remove agent entry "DFID": rc = %d\n",
3277 osd_name(osd), PFID(fid), result);
3280 if (S_ISDIR(inode->i_mode)) {
3281 LASSERT(osd_inode_unlinked(inode) || inode->i_nlink == 1 ||
3282 inode->i_nlink == 2);
3284 spin_lock(&obj->oo_guard);
3286 spin_unlock(&obj->oo_guard);
3287 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3290 osd_trans_exec_op(env, th, OSD_OT_DESTROY);
3292 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
3294 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3295 result = osd_oi_delete(osd_oti_get(env), osd, fid,
3296 oh->ot_handle, OI_CHECK_FLD);
3298 osd_trans_exec_check(env, th, OSD_OT_DESTROY);
3299 /* XXX: add to ext3 orphan list */
3300 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
3302 /* not needed in the cache anymore */
3303 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
3304 obj->oo_destroyed = 1;
3310 * Put the fid into lustre_mdt_attrs, and then place the structure
3311 * inode's ea. This fid should not be altered during the life time
3314 * \retval +ve, on success
3315 * \retval -ve, on error
3317 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
3319 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
3320 const struct lu_fid *fid, __u32 compat, __u32 incompat)
3322 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
3323 struct lustre_mdt_attrs *lma = &loa->loa_lma;
3327 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INLMA))
3330 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_OST_EA_FID_SET))
3333 lustre_loa_init(loa, fid, compat, incompat);
3334 lustre_loa_swab(loa, false);
3336 /* For the OST device with 256 bytes inode size by default,
3337 * the PFID EA will be stored together with LMA EA to avoid
3338 * performance trouble. Otherwise the PFID EA can be stored
3339 * independently. LU-8998 */
3340 if ((compat & LMAC_FID_ON_OST) &&
3341 LDISKFS_INODE_SIZE(inode->i_sb) <= 256)
3342 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3343 sizeof(*loa), XATTR_CREATE);
3345 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3346 sizeof(*lma), XATTR_CREATE);
3347 /* LMA may already exist, but we need to check that all the
3348 * desired compat/incompat flags have been added. */
3349 if (unlikely(rc == -EEXIST)) {
3350 rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
3351 XATTR_NAME_LMA, (void *)loa, sizeof(*loa));
3355 if (rc < sizeof(*lma))
3358 lustre_loa_swab(loa, true);
3359 if (lu_fid_eq(fid, &lma->lma_self_fid) &&
3360 ((compat == 0 && incompat == 0) ||
3361 (!(~lma->lma_compat & compat) &&
3362 !(~lma->lma_incompat & incompat))))
3365 lma->lma_self_fid = *fid;
3366 lma->lma_compat |= compat;
3367 lma->lma_incompat |= incompat;
3368 if (rc == sizeof(*lma)) {
3369 lustre_lma_swab(lma);
3370 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3371 sizeof(*lma), XATTR_REPLACE);
3373 lustre_loa_swab(loa, false);
3374 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3375 sizeof(*loa), XATTR_REPLACE);
3383 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
3384 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
3385 * To have compatilibility with 1.8 ldiskfs driver we need to have
3386 * magic number at start of fid data.
3387 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
3390 static void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
3391 const struct lu_fid *fid)
3393 if (!fid_is_namespace_visible(fid) ||
3394 OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
3395 param->edp_magic = 0;
3399 param->edp_magic = LDISKFS_LUFID_MAGIC;
3400 param->edp_len = sizeof(struct lu_fid) + 1;
3401 fid_cpu_to_be((struct lu_fid *)param->edp_data, (struct lu_fid *)fid);
3405 * Try to read the fid from inode ea into dt_rec.
3407 * \param fid object fid.
3409 * \retval 0 on success
3411 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
3412 __u32 ino, struct lu_fid *fid,
3413 struct osd_inode_id *id)
3415 struct osd_thread_info *info = osd_oti_get(env);
3416 struct inode *inode;
3419 osd_id_gen(id, ino, OSD_OII_NOGEN);
3420 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
3422 RETURN(PTR_ERR(inode));
3428 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
3430 struct inode *parent_dir,
3431 const struct lu_fid *dot_fid,
3432 const struct lu_fid *dot_dot_fid,
3433 struct osd_thandle *oth)
3435 struct ldiskfs_dentry_param *dot_ldp;
3436 struct ldiskfs_dentry_param *dot_dot_ldp;
3437 __u32 saved_nlink = dir->i_nlink;
3440 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
3441 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
3443 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3444 dot_ldp->edp_magic = 0;
3446 rc = ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
3447 dir, dot_ldp, dot_dot_ldp);
3448 /* The ldiskfs_add_dot_dotdot() may dir->i_nlink as 2, then
3449 * the subseqent ref_add() will increase the dir->i_nlink
3450 * as 3. That is incorrect for new created directory.
3452 * It looks like hack, because we want to make the OSD API
3453 * to be order-independent for new created directory object
3454 * between dt_insert(..) and ref_add() operations.
3456 * Here, we only restore the in-RAM dir-inode's nlink attr,
3457 * becuase if the nlink attr is not 2, then there will be
3458 * ref_add() called following the dt_insert(..), such call
3459 * will make both the in-RAM and on-disk dir-inode's nlink
3460 * attr to be set as 2. LU-7447 */
3461 set_nlink(dir, saved_nlink);
3466 * Create an local agent inode for remote entry
3468 static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
3469 struct osd_device *osd,
3470 struct osd_object *pobj,
3471 const struct lu_fid *fid,
3475 struct osd_thread_info *info = osd_oti_get(env);
3476 struct inode *local;
3477 struct osd_thandle *oh;
3482 oh = container_of(th, struct osd_thandle, ot_super);
3483 LASSERT(oh->ot_handle->h_transaction != NULL);
3485 local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, type);
3486 if (IS_ERR(local)) {
3487 CERROR("%s: create local error %d\n", osd_name(osd),
3488 (int)PTR_ERR(local));
3492 /* restore i_gid in case S_ISGID is set, we will inherit S_ISGID and set
3493 * correct gid on remote file, not agent here */
3494 local->i_gid = current_fsgid();
3495 ldiskfs_set_inode_state(local, LDISKFS_STATE_LUSTRE_NOSCRUB);
3496 unlock_new_inode(local);
3498 /* Agent inode should not have project ID */
3499 #ifdef HAVE_PROJECT_QUOTA
3500 if (LDISKFS_I(pobj->oo_inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
3501 i_projid_read(pobj->oo_inode) != 0) {
3502 rc = ldiskfs_transfer_project(local, 0);
3504 CERROR("%s: quota transfer failed: rc = %d. Is project "
3505 "quota enforcement enabled on the ldiskfs "
3506 "filesystem?\n", local->i_sb->s_id, rc);
3507 RETURN(ERR_PTR(rc));
3511 /* Set special LMA flag for local agent inode */
3512 rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
3514 CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
3515 osd_name(osd), PFID(fid), rc);
3516 RETURN(ERR_PTR(rc));
3522 rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
3523 lu_object_fid(&pobj->oo_dt.do_lu),
3526 CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
3527 osd_name(osd), PFID(fid), rc);
3528 RETURN(ERR_PTR(rc));
3535 * when direntry is deleted, we have to take care of possible agent inode
3536 * referenced by that. unfortunately we can't do this at that point:
3537 * iget() within a running transaction leads to deadlock and we better do
3538 * not call that every delete declaration to save performance. so we put
3539 * a potention agent inode on a list and process that once the transaction
3540 * is over. Notice it's not any worse in terms of real orphans as regular
3541 * object destroy doesn't put inodes on the on-disk orphan list. this should
3542 * be addressed separately
3544 static int osd_schedule_agent_inode_removal(const struct lu_env *env,
3545 struct osd_thandle *oh,
3548 struct osd_device *osd = osd_dt_dev(oh->ot_super.th_dev);
3549 struct osd_obj_orphan *oor;
3556 oor->oor_env = (struct lu_env *)env;
3557 spin_lock(&osd->od_osfs_lock);
3558 list_add(&oor->oor_list, &osd->od_orphan_list);
3559 spin_unlock(&osd->od_osfs_lock);
3561 oh->ot_remove_agents = 1;
3567 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
3568 struct osd_device *osd)
3570 struct osd_thread_info *info = osd_oti_get(env);
3571 struct osd_obj_orphan *oor, *tmp;
3572 struct osd_inode_id id;
3573 struct list_head list;
3574 struct inode *inode;
3579 INIT_LIST_HEAD(&list);
3581 spin_lock(&osd->od_osfs_lock);
3582 list_for_each_entry_safe(oor, tmp, &osd->od_orphan_list, oor_list) {
3583 if (oor->oor_env == env) {
3584 list_del(&oor->oor_list);
3585 list_add(&oor->oor_list, &list);
3588 spin_unlock(&osd->od_osfs_lock);
3590 list_for_each_entry_safe(oor, tmp, &list, oor_list) {
3594 list_del(&oor->oor_list);
3597 osd_id_gen(&id, ino, OSD_OII_NOGEN);
3598 inode = osd_iget_fid(info, osd, &id, &fid);
3602 if (!osd_remote_fid(env, osd, &fid)) {
3607 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC, 1);
3609 mark_inode_dirty(inode);
3610 ldiskfs_journal_stop(jh);
3618 * OSD layer object create function for OST objects (b=11826).
3620 * The FID is inserted into inode xattr here.
3622 * \retval 0, on success
3623 * \retval -ve, on error
3625 static int osd_create(const struct lu_env *env, struct dt_object *dt,
3626 struct lu_attr *attr, struct dt_allocation_hint *hint,
3627 struct dt_object_format *dof, struct thandle *th)
3629 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3630 struct osd_object *obj = osd_dt_obj(dt);
3631 struct osd_thread_info *info = osd_oti_get(env);
3632 int result, on_ost = 0;
3636 if (dt_object_exists(dt))
3639 LINVRNT(osd_invariant(obj));
3640 LASSERT(!dt_object_remote(dt));
3641 LASSERT(osd_is_write_locked(env, obj));
3642 LASSERT(th != NULL);
3644 if (unlikely(fid_is_acct(fid)))
3645 /* Quota files can't be created from the kernel any more,
3646 * 'tune2fs -O quota' will take care of creating them */
3649 result = __osd_create(info, obj, attr, hint, dof, th);
3651 if (fid_is_idif(fid) &&
3652 !osd_dev(dt->do_lu.lo_dev)->od_index_in_idif) {
3653 struct lu_fid *tfid = &info->oti_fid;
3654 struct ost_id *oi = &info->oti_ostid;
3656 fid_to_ostid(fid, oi);
3657 ostid_to_fid(tfid, oi, 0);
3659 result = osd_ea_fid_set(info, obj->oo_inode, tfid,
3660 LMAC_FID_ON_OST, 0);
3662 on_ost = fid_is_on_ost(info, osd_obj2dev(obj),
3664 result = osd_ea_fid_set(info, obj->oo_inode, fid,
3665 on_ost ? LMAC_FID_ON_OST : 0,
3668 if (obj->oo_dt.do_body_ops == &osd_body_ops_new)
3669 obj->oo_dt.do_body_ops = &osd_body_ops;
3673 result = __osd_oi_insert(env, obj, fid, th);
3675 /* a small optimization - dt_insert() isn't usually applied
3676 * to OST objects, so we don't need to cache OI mapping for
3678 if (result == 0 && on_ost == 0) {
3679 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3680 result = osd_idc_find_and_init(env, osd, obj);
3681 LASSERT(result == 0);
3684 LASSERT(ergo(result == 0,
3685 dt_object_exists(dt) && !dt_object_remote(dt)));
3686 LINVRNT(osd_invariant(obj));
3690 static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
3691 struct thandle *handle)
3693 struct osd_thandle *oh;
3695 /* it's possible that object doesn't exist yet */
3696 LASSERT(handle != NULL);
3698 oh = container_of0(handle, struct osd_thandle, ot_super);
3699 LASSERT(oh->ot_handle == NULL);
3701 osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
3702 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
3708 * Concurrency: @dt is write locked.
3710 static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
3713 struct osd_object *obj = osd_dt_obj(dt);
3714 struct inode *inode = obj->oo_inode;
3715 struct osd_thandle *oh;
3718 if (!dt_object_exists(dt) || obj->oo_destroyed)
3721 LINVRNT(osd_invariant(obj));
3722 LASSERT(!dt_object_remote(dt));
3723 LASSERT(osd_is_write_locked(env, obj));
3724 LASSERT(th != NULL);
3726 oh = container_of0(th, struct osd_thandle, ot_super);
3727 LASSERT(oh->ot_handle != NULL);
3729 osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
3731 CDEBUG(D_INODE, DFID" increase nlink %d\n",
3732 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
3734 * The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
3735 * (65000) subdirectories by storing "1" in i_nlink if the link count
3736 * would otherwise overflow. Directory tranversal tools understand
3737 * that (st_nlink == 1) indicates that the filesystem dose not track
3738 * hard links count on the directory, and will not abort subdirectory
3739 * scanning early once (st_nlink - 2) subdirs have been found.
3741 * This also has to properly handle the case of inodes with nlink == 0
3742 * in case they are being linked into the PENDING directory
3744 spin_lock(&obj->oo_guard);
3745 if (unlikely(inode->i_nlink == 0))
3746 /* inc_nlink from 0 may cause WARN_ON */
3747 set_nlink(inode, 1);
3749 ldiskfs_inc_count(oh->ot_handle, inode);
3750 if (!S_ISDIR(inode->i_mode))
3751 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
3753 spin_unlock(&obj->oo_guard);
3755 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3756 LINVRNT(osd_invariant(obj));
3758 osd_trans_exec_check(env, th, OSD_OT_REF_ADD);
3763 static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
3764 struct thandle *handle)
3766 struct osd_thandle *oh;
3768 if (!dt_object_exists(dt))
3771 LASSERT(!dt_object_remote(dt));
3772 LASSERT(handle != NULL);
3774 oh = container_of0(handle, struct osd_thandle, ot_super);
3775 LASSERT(oh->ot_handle == NULL);
3777 osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
3778 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
3784 * Concurrency: @dt is write locked.
3786 static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
3789 struct osd_object *obj = osd_dt_obj(dt);
3790 struct inode *inode = obj->oo_inode;
3791 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3792 struct osd_thandle *oh;
3794 if (!dt_object_exists(dt))
3797 LINVRNT(osd_invariant(obj));
3798 LASSERT(!dt_object_remote(dt));
3799 LASSERT(osd_is_write_locked(env, obj));
3800 LASSERT(th != NULL);
3802 oh = container_of0(th, struct osd_thandle, ot_super);
3803 LASSERT(oh->ot_handle != NULL);
3805 osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
3807 spin_lock(&obj->oo_guard);
3808 /* That can be result of upgrade from old Lustre version and
3809 * applied only to local files. Just skip this ref_del call.
3810 * ext4_unlink() only treats this as a warning, don't LASSERT here.*/
3811 if (inode->i_nlink == 0) {
3812 CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
3813 D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
3814 ", maybe an upgraded file? (LU-3915)\n",
3815 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
3816 spin_unlock(&obj->oo_guard);
3820 CDEBUG(D_INODE, DFID" decrease nlink %d\n",
3821 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
3823 ldiskfs_dec_count(oh->ot_handle, inode);
3824 spin_unlock(&obj->oo_guard);
3826 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3827 LINVRNT(osd_invariant(obj));
3829 osd_trans_exec_check(env, th, OSD_OT_REF_DEL);
3835 * Concurrency: @dt is read locked.
3837 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
3838 struct lu_buf *buf, const char *name)
3840 struct osd_object *obj = osd_dt_obj(dt);
3841 struct inode *inode = obj->oo_inode;
3842 struct osd_thread_info *info = osd_oti_get(env);
3843 struct dentry *dentry = &info->oti_obj_dentry;
3844 bool cache_xattr = false;
3849 /* version get is not real XATTR but uses xattr API */
3850 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
3851 dt_obj_version_t *ver = buf->lb_buf;
3853 /* for version we are just using xattr API but change inode
3855 if (buf->lb_len == 0)
3856 return sizeof(dt_obj_version_t);
3858 if (buf->lb_len < sizeof(dt_obj_version_t))
3861 CDEBUG(D_INODE, "Get version %#llx for inode %lu\n",
3862 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
3864 *ver = LDISKFS_I(inode)->i_fs_version;
3866 return sizeof(dt_obj_version_t);
3869 if (!dt_object_exists(dt))
3872 LASSERT(!dt_object_remote(dt));
3873 LASSERT(inode->i_op != NULL);
3874 LASSERT(inode->i_op->getxattr != NULL);
3876 if (strcmp(name, XATTR_NAME_LOV) == 0 ||
3877 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0)
3881 rc = osd_oxc_get(obj, name, buf);
3886 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
3887 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
3888 struct lustre_mdt_attrs *lma = &loa->loa_lma;
3889 struct filter_fid *ff;
3890 struct ost_layout *ol;
3892 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
3896 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
3899 if (buf->lb_len == 0 || !buf->lb_buf)
3902 if (buf->lb_len < rc)
3906 ol = &ff->ff_layout;
3907 ol->ol_stripe_count = cpu_to_le32(loa->loa_parent_fid.f_ver >>
3908 PFID_STRIPE_IDX_BITS);
3909 ol->ol_stripe_size = cpu_to_le32(loa->loa_stripe_size);
3910 loa->loa_parent_fid.f_ver &= PFID_STRIPE_COUNT_MASK;
3911 fid_cpu_to_le(&ff->ff_parent, &loa->loa_parent_fid);
3912 if (lma->lma_compat & LMAC_COMP_INFO) {
3913 ol->ol_comp_start = cpu_to_le64(loa->loa_comp_start);
3914 ol->ol_comp_end = cpu_to_le64(loa->loa_comp_end);
3915 ol->ol_comp_id = cpu_to_le32(loa->loa_comp_id);
3917 ol->ol_comp_start = 0;
3918 ol->ol_comp_end = 0;
3922 rc = __osd_xattr_get(inode, dentry, name,
3923 buf->lb_buf, buf->lb_len);
3927 if (rc == -ENOENT || rc == -ENODATA)
3928 osd_oxc_add(obj, name, NULL, 0);
3929 else if (rc > 0 && buf->lb_buf != NULL)
3930 osd_oxc_add(obj, name, buf->lb_buf, rc);
3936 static int osd_declare_xattr_set(const struct lu_env *env,
3937 struct dt_object *dt,
3938 const struct lu_buf *buf, const char *name,
3939 int fl, struct thandle *handle)
3941 struct osd_thandle *oh;
3943 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
3945 LASSERT(handle != NULL);
3947 oh = container_of0(handle, struct osd_thandle, ot_super);
3948 LASSERT(oh->ot_handle == NULL);
3950 if (strcmp(name, XATTR_NAME_LMA) == 0) {
3951 /* For non-upgrading case, the LMA is set first and
3952 * usually fit inode. But for upgrade case, the LMA
3953 * may be in another separated EA block. */
3954 if (dt_object_exists(dt)) {
3955 if (fl == LU_XATTR_REPLACE)
3960 } else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
3962 } else if (strcmp(name, XATTR_NAME_FID) == 0) {
3963 /* We may need to delete the old PFID EA. */
3964 credits = LDISKFS_MAXQUOTAS_DEL_BLOCKS(sb);
3965 if (fl == LU_XATTR_REPLACE)
3970 /* If some name entry resides on remote MDT, then will create
3971 * agent entry under remote parent. On the other hand, if the
3972 * remote entry will be removed, then related agent entry may
3973 * need to be removed from the remote parent. So there may be
3974 * kinds of cases, let's declare enough credits. The credits
3975 * for create agent entry is enough for remove case. */
3976 if (strcmp(name, XATTR_NAME_LINK) == 0) {
3977 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
3978 if (dt_object_exists(dt))
3979 credits += 1; /* For updating LMA */
3983 credits += osd_dto_credits_noquota[DTO_XATTR_SET];
3988 if (buf->lb_buf == NULL && dt_object_exists(dt)) {
3989 /* learn xattr size from osd_xattr_get if
3990 attribute has not been read yet */
3991 buflen = __osd_xattr_get(
3992 osd_dt_obj(dt)->oo_inode,
3993 &osd_oti_get(env)->oti_obj_dentry,
3998 buflen = buf->lb_len;
4001 if (buflen > sb->s_blocksize) {
4002 credits += osd_calc_bkmap_credits(
4004 (buflen + sb->s_blocksize - 1) >>
4005 sb->s_blocksize_bits);
4009 * xattr set may involve inode quota change, reserve credits for
4010 * dquot_initialize()
4012 credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4015 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
4020 static int osd_xattr_set_pfid(const struct lu_env *env, struct osd_object *obj,
4021 const struct lu_buf *buf, int fl,
4022 struct thandle *handle)
4024 struct osd_thread_info *info = osd_oti_get(env);
4025 struct dentry *dentry = &info->oti_obj_dentry;
4026 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4027 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4028 struct inode *inode = obj->oo_inode;
4029 struct filter_fid *ff = buf->lb_buf;
4030 struct ost_layout *ol = &ff->ff_layout;
4031 int flags = XATTR_REPLACE;
4035 if (buf->lb_len != sizeof(*ff) && buf->lb_len != sizeof(struct lu_fid))
4038 rc = osd_get_lma(info, inode, dentry, loa);
4039 if (rc == -ENODATA) {
4040 /* Usually for upgarding from old device */
4041 lustre_loa_init(loa, lu_object_fid(&obj->oo_dt.do_lu),
4042 LMAC_FID_ON_OST, 0);
4043 flags = XATTR_CREATE;
4048 if (!rc && lma->lma_compat & LMAC_STRIPE_INFO) {
4049 if ((fl & LU_XATTR_CREATE) && !(fl & LU_XATTR_REPLACE))
4052 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256) {
4053 /* Separate PFID EA from LMA */
4054 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4055 lustre_lma_swab(lma);
4056 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4057 sizeof(*lma), XATTR_REPLACE);
4059 obj->oo_pfid_in_lma = 0;
4060 rc = LU_XATTR_CREATE;
4066 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256)
4069 /* Old client does not send stripe information,
4070 * then store the PFID EA on disk separatedly. */
4071 if (unlikely(buf->lb_len == sizeof(struct lu_fid) ||
4072 ol->ol_stripe_size == 0))
4075 /* Remove old PFID EA entry firstly. */
4076 ll_vfs_dq_init(inode);
4077 rc = inode->i_op->removexattr(dentry, XATTR_NAME_FID);
4078 if (rc == -ENODATA) {
4079 if ((fl & LU_XATTR_REPLACE) && !(fl & LU_XATTR_CREATE))
4086 fid_le_to_cpu(&loa->loa_parent_fid, &ff->ff_parent);
4087 if (likely(ol->ol_stripe_size != 0)) {
4088 loa->loa_parent_fid.f_ver |= le32_to_cpu(ol->ol_stripe_count) <<
4089 PFID_STRIPE_IDX_BITS;
4090 loa->loa_stripe_size = le32_to_cpu(ol->ol_stripe_size);
4091 lma->lma_compat |= LMAC_STRIPE_INFO;
4092 if (ol->ol_comp_id != 0) {
4093 loa->loa_comp_id = le32_to_cpu(ol->ol_comp_id);
4094 loa->loa_comp_start = le64_to_cpu(ol->ol_comp_start);
4095 loa->loa_comp_end = le64_to_cpu(ol->ol_comp_end);
4096 lma->lma_compat |= LMAC_COMP_INFO;
4100 lustre_loa_swab(loa, false);
4102 /* Store the PFID EA inside LMA. */
4103 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa, sizeof(*loa),
4106 obj->oo_pfid_in_lma = 1;
4112 * In DNE environment, the object (in spite of regular file or directory)
4113 * and its name entry may reside on different MDTs. Under such case, we will
4114 * create an agent entry on the MDT where the object resides. The agent entry
4115 * references the object locally, that makes the object to be visible to the
4116 * userspace when mounted as 'ldiskfs' directly. Then the userspace tools,
4117 * such as 'tar' can handle the object properly.
4119 * We handle the agent entry during set linkEA that is the common interface
4120 * for both regular file and directroy, can handle kinds of cases, such as
4121 * create/link/unlink/rename, and so on.
4123 * NOTE: we can NOT do that when ea_{insert,delete} that is only for directory.
4125 * XXX: There are two known issues:
4126 * 1. For one object, we will create at most one agent entry even if there
4127 * may be more than one cross-MDTs hard links on the object. So the local
4128 * e2fsck may claim that the object's nlink is larger than the name entries
4129 * that reference such inode. And in further, the e2fsck will fix the nlink
4130 * attribute to match the local references. Then it will cause the object's
4131 * nlink attribute to be inconsistent with the global references. it is bad
4132 * but not fatal. The ref_del() can handle the zero-referenced case. On the
4133 * other hand, the global namespace LFSCK can repair the object's attribute
4134 * according to the linkEA.
4135 * 2. There may be too many hard links on the object as to its linkEA overflow,
4136 * then the linkEA entry for cross-MDTs reference may be discarded. If such
4137 * case happened, then at this point, we do not know whether there are some
4138 * cross-MDTs reference. But there are local references, it guarantees that
4139 * object is visible to userspace when mounted as 'ldiskfs'. That is enough.
4141 static int osd_xattr_handle_linkea(const struct lu_env *env,
4142 struct osd_device *osd,
4143 struct osd_object *obj,
4144 const struct lu_buf *buf,
4145 struct thandle *handle)
4147 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
4148 struct lu_fid *tfid = &osd_oti_get(env)->oti_fid3;
4149 struct linkea_data ldata = { .ld_buf = (struct lu_buf *)buf };
4150 struct lu_name tmpname;
4151 struct osd_thandle *oh;
4153 bool remote = false;
4156 oh = container_of0(handle, struct osd_thandle, ot_super);
4157 LASSERT(oh->ot_handle != NULL);
4159 rc = linkea_init_with_rec(&ldata);
4161 linkea_first_entry(&ldata);
4162 while (ldata.ld_lee != NULL && !remote) {
4163 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen,
4165 if (osd_remote_fid(env, osd, tfid) > 0)
4168 linkea_next_entry(&ldata);
4170 } else if (rc == -ENODATA) {
4176 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu) && !remote) {
4177 rc = osd_delete_from_remote_parent(env, osd, obj, oh, false);
4179 CERROR("%s: failed to remove agent entry for "DFID
4180 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4181 } else if (!lu_object_has_agent_entry(&obj->oo_dt.do_lu) && remote) {
4182 rc = osd_add_to_remote_parent(env, osd, obj, oh);
4184 CERROR("%s: failed to create agent entry for "DFID
4185 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4192 * Concurrency: @dt is write locked.
4194 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
4195 const struct lu_buf *buf, const char *name, int fl,
4196 struct thandle *handle)
4198 struct osd_object *obj = osd_dt_obj(dt);
4199 struct osd_device *osd = osd_obj2dev(obj);
4200 struct inode *inode = obj->oo_inode;
4201 struct osd_thread_info *info = osd_oti_get(env);
4210 /* version set is not real XATTR */
4211 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4212 dt_obj_version_t *version = buf->lb_buf;
4214 /* for version we are just using xattr API but change inode
4216 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
4218 CDEBUG(D_INODE, "Set version %#llx (old %#llx) for inode %lu\n",
4219 *version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
4221 LDISKFS_I(inode)->i_fs_version = *version;
4222 /* Version is set after all inode operations are finished,
4223 * so we should mark it dirty here */
4224 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4229 CDEBUG(D_INODE, DFID" set xattr '%s' with size %zu\n",
4230 PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
4233 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4235 /* For the OST device with 256 bytes inode size by default,
4236 * the PFID EA will be stored together with LMA EA to avoid
4237 * performance trouble. Otherwise the PFID EA can be stored
4238 * independently. LU-8998 */
4239 if (strcmp(name, XATTR_NAME_FID) == 0 && osd->od_is_ost &&
4240 (LDISKFS_INODE_SIZE(inode->i_sb) <= 256 || obj->oo_pfid_in_lma)) {
4241 LASSERT(buf->lb_buf);
4243 fl = osd_xattr_set_pfid(env, obj, buf, fl, handle);
4246 } else if (strcmp(name, XATTR_NAME_LMV) == 0) {
4247 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4248 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4250 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4254 lma->lma_incompat |= LMAI_STRIPED;
4255 lustre_lma_swab(lma);
4256 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4257 sizeof(*lma), XATTR_REPLACE);
4260 } else if (strcmp(name, XATTR_NAME_LINK) == 0) {
4261 LASSERT(!osd->od_is_ost);
4263 rc = osd_xattr_handle_linkea(env, osd, obj, buf, handle);
4268 if (fl & LU_XATTR_REPLACE)
4269 fs_flags |= XATTR_REPLACE;
4271 if (fl & LU_XATTR_CREATE)
4272 fs_flags |= XATTR_CREATE;
4274 rc = __osd_xattr_set(info, inode, name, buf->lb_buf, len, fs_flags);
4275 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4278 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4279 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4280 osd_oxc_add(obj, name, buf->lb_buf, buf->lb_len);
4286 * Concurrency: @dt is read locked.
4288 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
4289 const struct lu_buf *buf)
4291 struct osd_object *obj = osd_dt_obj(dt);
4292 struct inode *inode = obj->oo_inode;
4293 struct osd_thread_info *info = osd_oti_get(env);
4294 struct dentry *dentry = &info->oti_obj_dentry;
4296 if (!dt_object_exists(dt))
4299 LASSERT(!dt_object_remote(dt));
4300 LASSERT(inode->i_op != NULL);
4301 LASSERT(inode->i_op->listxattr != NULL);
4303 dentry->d_inode = inode;
4304 dentry->d_sb = inode->i_sb;
4305 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
4308 static int osd_declare_xattr_del(const struct lu_env *env,
4309 struct dt_object *dt, const char *name,
4310 struct thandle *handle)
4312 struct osd_thandle *oh;
4313 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4315 LASSERT(!dt_object_remote(dt));
4316 LASSERT(handle != NULL);
4318 oh = container_of0(handle, struct osd_thandle, ot_super);
4319 LASSERT(oh->ot_handle == NULL);
4321 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
4322 osd_dto_credits_noquota[DTO_XATTR_SET]);
4324 * xattr del may involve inode quota change, reserve credits for
4325 * dquot_initialize()
4327 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4333 * Concurrency: @dt is write locked.
4335 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
4336 const char *name, struct thandle *handle)
4338 struct osd_object *obj = osd_dt_obj(dt);
4339 struct inode *inode = obj->oo_inode;
4340 struct osd_thread_info *info = osd_oti_get(env);
4341 struct dentry *dentry = &info->oti_obj_dentry;
4344 if (!dt_object_exists(dt))
4347 LASSERT(!dt_object_remote(dt));
4348 LASSERT(inode->i_op != NULL);
4349 LASSERT(inode->i_op->removexattr != NULL);
4350 LASSERT(handle != NULL);
4352 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4354 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
4355 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
4357 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
4358 &info->oti_ost_attrs);
4360 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
4362 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4363 lustre_lma_swab(lma);
4364 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4365 sizeof(*lma), XATTR_REPLACE);
4367 obj->oo_pfid_in_lma = 0;
4370 ll_vfs_dq_init(inode);
4371 dentry->d_inode = inode;
4372 dentry->d_sb = inode->i_sb;
4373 rc = inode->i_op->removexattr(dentry, name);
4376 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4379 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4380 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4381 osd_oxc_del(obj, name);
4386 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
4387 __u64 start, __u64 end)
4389 struct osd_object *obj = osd_dt_obj(dt);
4390 struct inode *inode = obj->oo_inode;
4391 struct osd_thread_info *info = osd_oti_get(env);
4392 struct dentry *dentry = &info->oti_obj_dentry;
4393 struct file *file = &info->oti_file;
4398 dentry->d_inode = inode;
4399 dentry->d_sb = inode->i_sb;
4400 file->f_path.dentry = dentry;
4401 file->f_mapping = inode->i_mapping;
4402 file->f_op = inode->i_fop;
4403 set_file_inode(file, inode);
4405 rc = ll_vfs_fsync_range(file, start, end, 0);
4410 static int osd_invalidate(const struct lu_env *env, struct dt_object *dt)
4419 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
4420 const struct dt_index_features *feat)
4422 struct iam_descr *descr;
4424 if (osd_object_is_root(o))
4425 return feat == &dt_directory_features;
4427 LASSERT(o->oo_dir != NULL);
4429 descr = o->oo_dir->od_container.ic_descr;
4430 if (feat == &dt_directory_features) {
4431 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
4437 feat->dif_keysize_min <= descr->id_key_size &&
4438 descr->id_key_size <= feat->dif_keysize_max &&
4439 feat->dif_recsize_min <= descr->id_rec_size &&
4440 descr->id_rec_size <= feat->dif_recsize_max &&
4441 !(feat->dif_flags & (DT_IND_VARKEY |
4442 DT_IND_VARREC | DT_IND_NONUNQ)) &&
4443 ergo(feat->dif_flags & DT_IND_UPDATE,
4444 1 /* XXX check that object (and file system) is
4449 static int osd_iam_container_init(const struct lu_env *env,
4450 struct osd_object *obj,
4451 struct osd_directory *dir)
4453 struct iam_container *bag = &dir->od_container;
4456 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
4460 result = iam_container_setup(bag);
4462 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
4464 iam_container_fini(bag);
4471 * Concurrency: no external locking is necessary.
4473 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
4474 const struct dt_index_features *feat)
4478 struct osd_object *obj = osd_dt_obj(dt);
4480 LINVRNT(osd_invariant(obj));
4482 if (osd_object_is_root(obj)) {
4483 dt->do_index_ops = &osd_index_ea_ops;
4485 } else if (feat == &dt_directory_features) {
4486 dt->do_index_ops = &osd_index_ea_ops;
4487 if (obj->oo_inode == NULL || S_ISDIR(obj->oo_inode->i_mode))
4492 } else if (unlikely(feat == &dt_otable_features)) {
4493 dt->do_index_ops = &osd_otable_ops;
4495 } else if (unlikely(feat == &dt_acct_features)) {
4496 dt->do_index_ops = &osd_acct_index_ops;
4499 } else if (!osd_has_index(obj)) {
4500 struct osd_directory *dir;
4505 spin_lock(&obj->oo_guard);
4506 if (obj->oo_dir == NULL)
4510 * Concurrent thread allocated container data.
4513 spin_unlock(&obj->oo_guard);
4515 * Now, that we have container data, serialize its
4518 down_write(&obj->oo_ext_idx_sem);
4520 * recheck under lock.
4522 if (!osd_has_index(obj))
4523 result = osd_iam_container_init(env, obj,
4527 up_write(&obj->oo_ext_idx_sem);
4535 if (result == 0 && skip_iam == 0) {
4536 if (!osd_iam_index_probe(env, obj, feat))
4539 LINVRNT(osd_invariant(obj));
4544 static int osd_otable_it_attr_get(const struct lu_env *env,
4545 struct dt_object *dt,
4546 struct lu_attr *attr)
4552 static const struct dt_object_operations osd_obj_ops = {
4553 .do_read_lock = osd_read_lock,
4554 .do_write_lock = osd_write_lock,
4555 .do_read_unlock = osd_read_unlock,
4556 .do_write_unlock = osd_write_unlock,
4557 .do_write_locked = osd_write_locked,
4558 .do_attr_get = osd_attr_get,
4559 .do_declare_attr_set = osd_declare_attr_set,
4560 .do_attr_set = osd_attr_set,
4561 .do_ah_init = osd_ah_init,
4562 .do_declare_create = osd_declare_create,
4563 .do_create = osd_create,
4564 .do_declare_destroy = osd_declare_destroy,
4565 .do_destroy = osd_destroy,
4566 .do_index_try = osd_index_try,
4567 .do_declare_ref_add = osd_declare_ref_add,
4568 .do_ref_add = osd_ref_add,
4569 .do_declare_ref_del = osd_declare_ref_del,
4570 .do_ref_del = osd_ref_del,
4571 .do_xattr_get = osd_xattr_get,
4572 .do_declare_xattr_set = osd_declare_xattr_set,
4573 .do_xattr_set = osd_xattr_set,
4574 .do_declare_xattr_del = osd_declare_xattr_del,
4575 .do_xattr_del = osd_xattr_del,
4576 .do_xattr_list = osd_xattr_list,
4577 .do_object_sync = osd_object_sync,
4578 .do_invalidate = osd_invalidate,
4581 static const struct dt_object_operations osd_obj_otable_it_ops = {
4582 .do_attr_get = osd_otable_it_attr_get,
4583 .do_index_try = osd_index_try,
4586 static int osd_index_declare_iam_delete(const struct lu_env *env,
4587 struct dt_object *dt,
4588 const struct dt_key *key,
4589 struct thandle *handle)
4591 struct osd_thandle *oh;
4593 oh = container_of0(handle, struct osd_thandle, ot_super);
4594 LASSERT(oh->ot_handle == NULL);
4596 /* Recycle may cause additional three blocks to be changed. */
4597 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
4598 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
4604 * delete a (key, value) pair from index \a dt specified by \a key
4606 * \param dt osd index object
4607 * \param key key for index
4608 * \param rec record reference
4609 * \param handle transaction handler
4612 * \retval -ve failure
4614 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
4615 const struct dt_key *key,
4616 struct thandle *handle)
4618 struct osd_thread_info *oti = osd_oti_get(env);
4619 struct osd_object *obj = osd_dt_obj(dt);
4620 struct osd_thandle *oh;
4621 struct iam_path_descr *ipd;
4622 struct iam_container *bag = &obj->oo_dir->od_container;
4626 if (!dt_object_exists(dt))
4629 LINVRNT(osd_invariant(obj));
4630 LASSERT(!dt_object_remote(dt));
4631 LASSERT(bag->ic_object == obj->oo_inode);
4632 LASSERT(handle != NULL);
4634 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
4636 ipd = osd_idx_ipd_get(env, bag);
4637 if (unlikely(ipd == NULL))
4640 oh = container_of0(handle, struct osd_thandle, ot_super);
4641 LASSERT(oh->ot_handle != NULL);
4642 LASSERT(oh->ot_handle->h_transaction != NULL);
4644 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
4645 /* swab quota uid/gid provided by caller */
4646 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4647 key = (const struct dt_key *)&oti->oti_quota_id;
4650 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
4651 osd_ipd_put(env, bag, ipd);
4652 LINVRNT(osd_invariant(obj));
4653 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
4657 static int osd_index_declare_ea_delete(const struct lu_env *env,
4658 struct dt_object *dt,
4659 const struct dt_key *key,
4660 struct thandle *handle)
4662 struct osd_thandle *oh;
4663 struct inode *inode;
4667 LASSERT(!dt_object_remote(dt));
4668 LASSERT(handle != NULL);
4670 oh = container_of0(handle, struct osd_thandle, ot_super);
4671 LASSERT(oh->ot_handle == NULL);
4673 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE];
4674 osd_trans_declare_op(env, oh, OSD_OT_DELETE, credits);
4676 inode = osd_dt_obj(dt)->oo_inode;
4680 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
4681 i_projid_read(inode), 0, oh, osd_dt_obj(dt),
4686 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
4689 struct osd_fid_pack *rec;
4692 if (de->file_type & LDISKFS_DIRENT_LUFID) {
4693 rec = (struct osd_fid_pack *) (de->name + de->name_len + 1);
4694 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
4695 if (rc == 0 && unlikely(!fid_is_sane((struct lu_fid *)fid)))
4701 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
4702 const struct lu_fid *fid)
4704 struct seq_server_site *ss = osd_seq_site(osd);
4707 /* FID seqs not in FLDB, must be local seq */
4708 if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
4711 /* If FLD is not being initialized yet, it only happens during the
4712 * initialization, likely during mgs initialization, and we assume
4713 * this is local FID. */
4714 if (ss == NULL || ss->ss_server_fld == NULL)
4717 /* Only check the local FLDB here */
4718 if (osd_seq_exists(env, osd, fid_seq(fid)))
4725 * Index delete function for interoperability mode (b11826).
4726 * It will remove the directory entry added by osd_index_ea_insert().
4727 * This entry is needed to maintain name->fid mapping.
4729 * \param key, key i.e. file entry to be deleted
4731 * \retval 0, on success
4732 * \retval -ve, on error
4734 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
4735 const struct dt_key *key, struct thandle *handle)
4737 struct osd_object *obj = osd_dt_obj(dt);
4738 struct inode *dir = obj->oo_inode;
4739 struct dentry *dentry;
4740 struct osd_thandle *oh;
4741 struct ldiskfs_dir_entry_2 *de = NULL;
4742 struct buffer_head *bh;
4743 struct htree_lock *hlock = NULL;
4744 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
4745 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4749 if (!dt_object_exists(dt))
4752 LINVRNT(osd_invariant(obj));
4753 LASSERT(!dt_object_remote(dt));
4754 LASSERT(handle != NULL);
4756 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
4758 oh = container_of(handle, struct osd_thandle, ot_super);
4759 LASSERT(oh->ot_handle != NULL);
4760 LASSERT(oh->ot_handle->h_transaction != NULL);
4762 ll_vfs_dq_init(dir);
4763 dentry = osd_child_dentry_get(env, obj,
4764 (char *)key, strlen((char *)key));
4766 if (obj->oo_hl_head != NULL) {
4767 hlock = osd_oti_get(env)->oti_hlock;
4768 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
4769 dir, LDISKFS_HLOCK_DEL);
4771 down_write(&obj->oo_ext_idx_sem);
4774 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
4776 /* If this is not the ".." entry, it might be a remote DNE
4777 * entry and we need to check if the FID is for a remote
4778 * MDT. If the FID is not in the directory entry (e.g.
4779 * upgraded 1.8 filesystem without dirdata enabled) then
4780 * we need to get the FID from the LMA. For a remote directory
4781 * there HAS to be an LMA, it cannot be an IGIF inode in this
4784 * Delete the entry before the agent inode in order to
4785 * simplify error handling. At worst an error after deleting
4786 * the entry first might leak the agent inode afterward. The
4787 * reverse would need filesystem abort in case of error deleting
4788 * the entry after the agent had been removed, or leave a
4789 * dangling entry pointing at a random inode. */
4790 if (strcmp((char *)key, dotdot) != 0) {
4791 LASSERT(de != NULL);
4792 rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
4793 if (rc == -ENODATA) {
4794 /* can't get FID, postpone to the end of the
4795 * transaction when iget() is safe */
4796 osd_schedule_agent_inode_removal(env, oh,
4797 le32_to_cpu(de->inode));
4798 } else if (rc == 0 &&
4799 unlikely(osd_remote_fid(env, osd, fid))) {
4800 osd_schedule_agent_inode_removal(env, oh,
4801 le32_to_cpu(de->inode));
4804 rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
4810 ldiskfs_htree_unlock(hlock);
4812 up_write(&obj->oo_ext_idx_sem);
4817 LASSERT(osd_invariant(obj));
4818 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
4823 * Lookup index for \a key and copy record to \a rec.
4825 * \param dt osd index object
4826 * \param key key for index
4827 * \param rec record reference
4829 * \retval +ve success : exact mach
4830 * \retval 0 return record with key not greater than \a key
4831 * \retval -ve failure
4833 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
4834 struct dt_rec *rec, const struct dt_key *key)
4836 struct osd_object *obj = osd_dt_obj(dt);
4837 struct iam_path_descr *ipd;
4838 struct iam_container *bag = &obj->oo_dir->od_container;
4839 struct osd_thread_info *oti = osd_oti_get(env);
4840 struct iam_iterator *it = &oti->oti_idx_it;
4841 struct iam_rec *iam_rec;
4845 if (!dt_object_exists(dt))
4848 LASSERT(osd_invariant(obj));
4849 LASSERT(!dt_object_remote(dt));
4850 LASSERT(bag->ic_object == obj->oo_inode);
4852 ipd = osd_idx_ipd_get(env, bag);
4856 /* got ipd now we can start iterator. */
4857 iam_it_init(it, bag, 0, ipd);
4859 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
4860 /* swab quota uid/gid provided by caller */
4861 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4862 key = (const struct dt_key *)&oti->oti_quota_id;
4865 rc = iam_it_get(it, (struct iam_key *)key);
4867 if (S_ISDIR(obj->oo_inode->i_mode))
4868 iam_rec = (struct iam_rec *)oti->oti_ldp;
4870 iam_rec = (struct iam_rec *) rec;
4872 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
4874 if (S_ISDIR(obj->oo_inode->i_mode))
4875 osd_fid_unpack((struct lu_fid *) rec,
4876 (struct osd_fid_pack *)iam_rec);
4877 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
4878 osd_quota_unpack(obj, rec);
4883 osd_ipd_put(env, bag, ipd);
4885 LINVRNT(osd_invariant(obj));
4890 static int osd_index_declare_iam_insert(const struct lu_env *env,
4891 struct dt_object *dt,
4892 const struct dt_rec *rec,
4893 const struct dt_key *key,
4894 struct thandle *handle)
4896 struct osd_thandle *oh;
4898 LASSERT(handle != NULL);
4900 oh = container_of0(handle, struct osd_thandle, ot_super);
4901 LASSERT(oh->ot_handle == NULL);
4903 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4904 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
4910 * Inserts (key, value) pair in \a dt index object.
4912 * \param dt osd index object
4913 * \param key key for index
4914 * \param rec record reference
4915 * \param th transaction handler
4918 * \retval -ve failure
4920 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
4921 const struct dt_rec *rec,
4922 const struct dt_key *key, struct thandle *th,
4925 struct osd_object *obj = osd_dt_obj(dt);
4926 struct iam_path_descr *ipd;
4927 struct osd_thandle *oh;
4928 struct iam_container *bag;
4929 struct osd_thread_info *oti = osd_oti_get(env);
4930 struct iam_rec *iam_rec;
4934 if (!dt_object_exists(dt))
4937 LINVRNT(osd_invariant(obj));
4938 LASSERT(!dt_object_remote(dt));
4940 bag = &obj->oo_dir->od_container;
4941 LASSERT(bag->ic_object == obj->oo_inode);
4942 LASSERT(th != NULL);
4944 osd_trans_exec_op(env, th, OSD_OT_INSERT);
4946 ipd = osd_idx_ipd_get(env, bag);
4947 if (unlikely(ipd == NULL))
4950 oh = container_of0(th, struct osd_thandle, ot_super);
4951 LASSERT(oh->ot_handle != NULL);
4952 LASSERT(oh->ot_handle->h_transaction != NULL);
4953 if (S_ISDIR(obj->oo_inode->i_mode)) {
4954 iam_rec = (struct iam_rec *)oti->oti_ldp;
4955 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec, &oti->oti_fid);
4956 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
4957 /* pack quota uid/gid */
4958 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4959 key = (const struct dt_key *)&oti->oti_quota_id;
4960 /* pack quota record */
4961 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
4962 iam_rec = (struct iam_rec *)rec;
4964 iam_rec = (struct iam_rec *)rec;
4967 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
4969 osd_ipd_put(env, bag, ipd);
4970 LINVRNT(osd_invariant(obj));
4971 osd_trans_exec_check(env, th, OSD_OT_INSERT);
4976 * Calls ldiskfs_add_entry() to add directory entry
4977 * into the directory. This is required for
4978 * interoperability mode (b11826)
4980 * \retval 0, on success
4981 * \retval -ve, on error
4983 static int __osd_ea_add_rec(struct osd_thread_info *info,
4984 struct osd_object *pobj, struct inode *cinode,
4985 const char *name, const struct lu_fid *fid,
4986 struct htree_lock *hlock, struct thandle *th)
4988 struct ldiskfs_dentry_param *ldp;
4989 struct dentry *child;
4990 struct osd_thandle *oth;
4993 oth = container_of(th, struct osd_thandle, ot_super);
4994 LASSERT(oth->ot_handle != NULL);
4995 LASSERT(oth->ot_handle->h_transaction != NULL);
4996 LASSERT(pobj->oo_inode);
4998 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
4999 if (unlikely(pobj->oo_inode ==
5000 osd_sb(osd_obj2dev(pobj))->s_root->d_inode))
5003 osd_get_ldiskfs_dirent_param(ldp, fid);
5004 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
5005 child->d_fsdata = (void *)ldp;
5006 ll_vfs_dq_init(pobj->oo_inode);
5007 rc = osd_ldiskfs_add_entry(info, osd_obj2dev(pobj), oth->ot_handle,
5008 child, cinode, hlock);
5009 if (rc == 0 && OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_TYPE)) {
5010 struct ldiskfs_dir_entry_2 *de;
5011 struct buffer_head *bh;
5014 bh = osd_ldiskfs_find_entry(pobj->oo_inode, &child->d_name, &de,
5017 rc1 = ldiskfs_journal_get_write_access(oth->ot_handle,
5020 if (S_ISDIR(cinode->i_mode))
5021 de->file_type = LDISKFS_DIRENT_LUFID |
5022 LDISKFS_FT_REG_FILE;
5024 de->file_type = LDISKFS_DIRENT_LUFID |
5026 ldiskfs_handle_dirty_metadata(oth->ot_handle,
5037 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
5038 * into the directory.Also sets flags into osd object to
5039 * indicate dot and dotdot are created. This is required for
5040 * interoperability mode (b11826)
5042 * \param dir directory for dot and dotdot fixup.
5043 * \param obj child object for linking
5045 * \retval 0, on success
5046 * \retval -ve, on error
5048 static int osd_add_dot_dotdot(struct osd_thread_info *info,
5049 struct osd_object *dir,
5050 struct inode *parent_dir, const char *name,
5051 const struct lu_fid *dot_fid,
5052 const struct lu_fid *dot_dot_fid,
5055 struct inode *inode = dir->oo_inode;
5056 struct osd_thandle *oth;
5059 oth = container_of(th, struct osd_thandle, ot_super);
5060 LASSERT(oth->ot_handle->h_transaction != NULL);
5061 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
5063 if (strcmp(name, dot) == 0) {
5064 if (dir->oo_compat_dot_created) {
5067 LASSERT(inode->i_ino == parent_dir->i_ino);
5068 dir->oo_compat_dot_created = 1;
5071 } else if (strcmp(name, dotdot) == 0) {
5072 if (!dir->oo_compat_dot_created)
5074 /* in case of rename, dotdot is already created */
5075 if (dir->oo_compat_dotdot_created) {
5076 return __osd_ea_add_rec(info, dir, parent_dir, name,
5077 dot_dot_fid, NULL, th);
5080 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_PARENT)) {
5081 struct lu_fid tfid = *dot_dot_fid;
5084 result = osd_add_dot_dotdot_internal(info,
5085 dir->oo_inode, parent_dir, dot_fid,
5088 result = osd_add_dot_dotdot_internal(info,
5089 dir->oo_inode, parent_dir, dot_fid,
5094 dir->oo_compat_dotdot_created = 1;
5102 * It will call the appropriate osd_add* function and return the
5103 * value, return by respective functions.
5105 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
5106 struct inode *cinode, const char *name,
5107 const struct lu_fid *fid, struct thandle *th)
5109 struct osd_thread_info *info = osd_oti_get(env);
5110 struct htree_lock *hlock;
5113 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
5115 if (name[0] == '.' && (name[1] == '\0' || (name[1] == '.' &&
5117 if (hlock != NULL) {
5118 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5121 down_write(&pobj->oo_ext_idx_sem);
5124 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
5125 lu_object_fid(&pobj->oo_dt.do_lu),
5128 if (hlock != NULL) {
5129 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5130 pobj->oo_inode, LDISKFS_HLOCK_ADD);
5132 down_write(&pobj->oo_ext_idx_sem);
5135 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
5136 struct lu_fid *tfid = &info->oti_fid;
5140 rc = __osd_ea_add_rec(info, pobj, cinode, name,
5143 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
5148 ldiskfs_htree_unlock(hlock);
5150 up_write(&pobj->oo_ext_idx_sem);
5156 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
5157 struct osd_idmap_cache *oic)
5159 struct lustre_scrub *scrub = &dev->od_scrub.os_scrub;
5160 struct lu_fid *fid = &oic->oic_fid;
5161 struct osd_inode_id *id = &oic->oic_lid;
5162 struct inode *inode = NULL;
5168 if (!fid_is_norm(fid) && !fid_is_igif(fid))
5171 if (thread_is_running(&scrub->os_thread) &&
5172 scrub->os_pos_current > id->oii_ino)
5175 if (dev->od_auto_scrub_interval == AS_NEVER ||
5176 cfs_time_before(ktime_get_real_seconds(),
5177 scrub->os_file.sf_time_last_complete +
5178 dev->od_auto_scrub_interval))
5182 rc = osd_oi_lookup(oti, dev, fid, &oti->oti_id, 0);
5183 if (rc == -ENOENT) {
5184 __u32 gen = id->oii_gen;
5190 inode = osd_iget(oti, dev, id);
5191 /* The inode has been removed (by race maybe). */
5192 if (IS_ERR(inode)) {
5193 rc = PTR_ERR(inode);
5195 RETURN(rc == -ESTALE ? -ENOENT : rc);
5198 /* The OI mapping is lost. */
5199 if (gen != OSD_OII_NOGEN)
5202 /* The inode may has been reused by others, we do not know,
5203 * leave it to be handled by subsequent osd_fid_lookup(). */
5205 } else if (rc || osd_id_eq(id, &oti->oti_id)) {
5212 if (thread_is_running(&scrub->os_thread)) {
5213 if (inode == NULL) {
5214 inode = osd_iget(oti, dev, id);
5215 /* The inode has been removed (by race maybe). */
5216 if (IS_ERR(inode)) {
5217 rc = PTR_ERR(inode);
5219 RETURN(rc == -ESTALE ? -ENOENT : rc);
5223 rc = osd_oii_insert(dev, oic, insert);
5224 /* There is race condition between osd_oi_lookup and OI scrub.
5225 * The OI scrub finished just after osd_oi_lookup() failure.
5226 * Under such case, it is unnecessary to trigger OI scrub again,
5227 * but try to call osd_oi_lookup() again. */
5228 if (unlikely(rc == -EAGAIN))
5231 if (!S_ISDIR(inode->i_mode))
5234 rc = osd_check_lmv(oti, dev, inode, oic);
5239 if (dev->od_auto_scrub_interval != AS_NEVER && ++once == 1) {
5240 rc = osd_scrub_start(oti->oti_env, dev, SS_AUTO_PARTIAL |
5241 SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT);
5242 CDEBUG(D_LFSCK | D_CONSOLE | D_WARNING,
5243 "%s: trigger partial OI scrub for RPC inconsistency "
5244 "checking FID "DFID": rc = %d\n",
5245 osd_dev2name(dev), PFID(fid), rc);
5246 if (rc == 0 || rc == -EALREADY)
5259 static int osd_fail_fid_lookup(struct osd_thread_info *oti,
5260 struct osd_device *dev,
5261 struct osd_idmap_cache *oic,
5262 struct lu_fid *fid, __u32 ino)
5264 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
5265 struct inode *inode;
5268 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
5269 inode = osd_iget(oti, dev, &oic->oic_lid);
5270 if (IS_ERR(inode)) {
5271 fid_zero(&oic->oic_fid);
5272 return PTR_ERR(inode);
5275 rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, loa);
5278 fid_zero(&oic->oic_fid);
5280 *fid = oic->oic_fid = loa->loa_lma.lma_self_fid;
5284 void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
5285 struct osd_inode_id *id, const struct lu_fid *fid)
5287 CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
5288 id->oii_ino, id->oii_gen, info);
5289 info->oti_cache.oic_lid = *id;
5290 info->oti_cache.oic_fid = *fid;
5291 info->oti_cache.oic_dev = osd;
5295 * Get parent FID from the linkEA.
5297 * For a directory which parent resides on remote MDT, to satisfy the
5298 * local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
5299 * the other hand, to make the lookup(..) on the directory can return
5300 * the real parent FID, we append the real parent FID after its ".."
5301 * name entry in the /REMOTE_PARENT_DIR.
5303 * Unfortunately, such PFID-in-dirent cannot be preserved via file-level
5304 * backup. So after the restore, we cannot get the right parent FID from
5305 * its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
5306 * we have stored the real parent FID in the directory object's linkEA,
5307 * we can parse the linkEA for the real parent FID.
5309 * \param[in] env pointer to the thread context
5310 * \param[in] obj pointer to the object to be handled
5311 * \param[out]fid pointer to the buffer to hold the parent FID
5313 * \retval 0 for getting the real parent FID successfully
5314 * \retval negative error number on failure
5316 static int osd_get_pfid_from_linkea(const struct lu_env *env,
5317 struct osd_object *obj,
5320 struct osd_thread_info *oti = osd_oti_get(env);
5321 struct lu_buf *buf = &oti->oti_big_buf;
5322 struct dentry *dentry = &oti->oti_obj_dentry;
5323 struct inode *inode = obj->oo_inode;
5324 struct linkea_data ldata = { NULL };
5329 if (!S_ISDIR(inode->i_mode))
5333 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5334 buf->lb_buf, buf->lb_len);
5335 if (rc == -ERANGE) {
5336 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5339 lu_buf_realloc(buf, rc);
5340 if (buf->lb_buf == NULL)
5347 if (unlikely(rc == 0))
5353 if (unlikely(buf->lb_buf == NULL)) {
5354 lu_buf_realloc(buf, rc);
5355 if (buf->lb_buf == NULL)
5362 rc = linkea_init_with_rec(&ldata);
5364 linkea_first_entry(&ldata);
5365 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
5371 static int osd_verify_ent_by_linkea(const struct lu_env *env,
5372 struct inode *inode,
5373 const struct lu_fid *pfid,
5374 const char *name, const int namelen)
5376 struct osd_thread_info *oti = osd_oti_get(env);
5377 struct lu_buf *buf = &oti->oti_big_buf;
5378 struct dentry *dentry = &oti->oti_obj_dentry;
5379 struct linkea_data ldata = { NULL };
5380 struct lu_name cname = { .ln_name = name,
5381 .ln_namelen = namelen };
5386 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5387 buf->lb_buf, buf->lb_len);
5389 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK, NULL, 0);
5394 if (unlikely(rc == 0))
5397 if (buf->lb_len < rc) {
5398 lu_buf_realloc(buf, rc);
5399 if (buf->lb_buf == NULL)
5406 rc = linkea_init_with_rec(&ldata);
5408 rc = linkea_links_find(&ldata, &cname, pfid);
5414 * Calls ->lookup() to find dentry. From dentry get inode and
5415 * read inode's ea to get fid. This is required for interoperability
5418 * \retval 0, on success
5419 * \retval -ve, on error
5421 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
5422 struct dt_rec *rec, const struct dt_key *key)
5424 struct inode *dir = obj->oo_inode;
5425 struct dentry *dentry;
5426 struct ldiskfs_dir_entry_2 *de;
5427 struct buffer_head *bh;
5428 struct lu_fid *fid = (struct lu_fid *) rec;
5429 struct htree_lock *hlock = NULL;
5434 LASSERT(dir->i_op != NULL);
5435 LASSERT(dir->i_op->lookup != NULL);
5437 dentry = osd_child_dentry_get(env, obj,
5438 (char *)key, strlen((char *)key));
5440 if (obj->oo_hl_head != NULL) {
5441 hlock = osd_oti_get(env)->oti_hlock;
5442 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5443 dir, LDISKFS_HLOCK_LOOKUP);
5445 down_read(&obj->oo_ext_idx_sem);
5448 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5450 struct osd_thread_info *oti = osd_oti_get(env);
5451 struct osd_inode_id *id = &oti->oti_id;
5452 struct osd_idmap_cache *oic = &oti->oti_cache;
5453 struct osd_device *dev = osd_obj2dev(obj);
5455 ino = le32_to_cpu(de->inode);
5456 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
5458 rc = osd_fail_fid_lookup(oti, dev, oic, fid, ino);
5462 rc = osd_get_fid_from_dentry(de, rec);
5464 /* done with de, release bh */
5467 if (unlikely(ino == osd_remote_parent_ino(dev))) {
5468 const char *name = (const char *)key;
5470 /* If the parent is on remote MDT, and there
5471 * is no FID-in-dirent, then we have to get
5472 * the parent FID from the linkEA. */
5473 if (likely(strlen(name) == 2 &&
5474 name[0] == '.' && name[1] == '.'))
5475 rc = osd_get_pfid_from_linkea(env, obj,
5478 rc = osd_ea_fid_get(env, obj, ino, fid, id);
5481 osd_id_gen(id, ino, OSD_OII_NOGEN);
5484 if (rc != 0 || osd_remote_fid(env, dev, fid)) {
5485 fid_zero(&oic->oic_fid);
5490 osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id, fid);
5491 rc = osd_consistency_check(oti, dev, oic);
5493 fid_zero(&oic->oic_fid);
5495 /* Other error should not affect lookup result. */
5505 ldiskfs_htree_unlock(hlock);
5507 up_read(&obj->oo_ext_idx_sem);
5511 static int osd_index_declare_ea_insert(const struct lu_env *env,
5512 struct dt_object *dt,
5513 const struct dt_rec *rec,
5514 const struct dt_key *key,
5515 struct thandle *handle)
5517 struct osd_thandle *oh;
5518 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5519 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
5520 const struct lu_fid *fid = rec1->rec_fid;
5521 int credits, rc = 0;
5522 struct osd_idmap_cache *idc;
5525 LASSERT(!dt_object_remote(dt));
5526 LASSERT(handle != NULL);
5527 LASSERT(fid != NULL);
5528 LASSERT(rec1->rec_type != 0);
5530 oh = container_of0(handle, struct osd_thandle, ot_super);
5531 LASSERT(oh->ot_handle == NULL);
5533 credits = osd_dto_credits_noquota[DTO_INDEX_INSERT];
5535 /* we can't call iget() while a transactions is running
5536 * (this can lead to a deadlock), but we need to know
5537 * inum and object type. so we find this information at
5538 * declaration and cache in per-thread info */
5539 idc = osd_idc_find_or_init(env, osd, fid);
5541 RETURN(PTR_ERR(idc));
5542 if (idc->oic_remote) {
5543 /* a reference to remote inode is represented by an
5544 * agent inode which we have to create */
5545 credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
5546 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
5549 osd_trans_declare_op(env, oh, OSD_OT_INSERT, credits);
5551 if (osd_dt_obj(dt)->oo_inode != NULL) {
5552 struct inode *inode = osd_dt_obj(dt)->oo_inode;
5554 /* We ignore block quota on meta pool (MDTs), so needn't
5555 * calculate how many blocks will be consumed by this index
5557 rc = osd_declare_inode_qid(env, i_uid_read(inode),
5559 i_projid_read(inode), 0,
5560 oh, osd_dt_obj(dt), NULL,
5565 #ifdef HAVE_PROJECT_QUOTA
5566 /* Reserve credits for local agent inode to transfer
5567 * to 0, quota enforcement is ignored in this case.
5569 if (idc->oic_remote &&
5570 LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
5571 i_projid_read(inode) != 0)
5572 rc = osd_declare_attr_qid(env, osd_dt_obj(dt), oh,
5573 0, i_projid_read(inode),
5574 0, false, PRJQUOTA);
5583 * Index add function for interoperability mode (b11826).
5584 * It will add the directory entry.This entry is needed to
5585 * maintain name->fid mapping.
5587 * \param key it is key i.e. file entry to be inserted
5588 * \param rec it is value of given key i.e. fid
5590 * \retval 0, on success
5591 * \retval -ve, on error
5593 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
5594 const struct dt_rec *rec,
5595 const struct dt_key *key, struct thandle *th,
5598 struct osd_object *obj = osd_dt_obj(dt);
5599 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5600 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
5601 const struct lu_fid *fid = rec1->rec_fid;
5602 const char *name = (const char *)key;
5603 struct osd_thread_info *oti = osd_oti_get(env);
5604 struct inode *child_inode = NULL;
5605 struct osd_idmap_cache *idc;
5609 if (!dt_object_exists(dt))
5612 LASSERT(osd_invariant(obj));
5613 LASSERT(!dt_object_remote(dt));
5614 LASSERT(th != NULL);
5616 osd_trans_exec_op(env, th, OSD_OT_INSERT);
5618 LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
5620 idc = osd_idc_find(env, osd, fid);
5621 if (unlikely(idc == NULL)) {
5622 /* this dt_insert() wasn't declared properly, so
5623 * FID is missing in OI cache. we better do not
5624 * lookup FID in FLDB/OI and don't risk to deadlock,
5625 * but in some special cases (lfsck testing, etc)
5626 * it's much simpler than fixing a caller */
5627 CERROR("%s: "DFID" wasn't declared for insert\n",
5628 osd_name(osd), PFID(fid));
5630 idc = osd_idc_find_or_init(env, osd, fid);
5632 RETURN(PTR_ERR(idc));
5635 if (idc->oic_remote) {
5636 /* Insert remote entry */
5637 if (strcmp(name, dotdot) == 0 && strlen(name) == 2) {
5639 igrab(osd->od_mdt_map->omm_remote_parent->d_inode);
5641 child_inode = osd_create_local_agent_inode(env, osd,
5642 obj, fid, rec1->rec_type & S_IFMT, th);
5643 if (IS_ERR(child_inode))
5644 RETURN(PTR_ERR(child_inode));
5647 /* Insert local entry */
5648 if (unlikely(idc->oic_lid.oii_ino == 0)) {
5649 /* for a reason OI cache wasn't filled properly */
5650 CERROR("%s: OIC for "DFID" isn't filled\n",
5651 osd_name(osd), PFID(fid));
5654 child_inode = oti->oti_inode;
5655 if (unlikely(child_inode == NULL)) {
5656 struct ldiskfs_inode_info *lii;
5660 child_inode = oti->oti_inode = &lii->vfs_inode;
5662 child_inode->i_sb = osd_sb(osd);
5663 child_inode->i_ino = idc->oic_lid.oii_ino;
5664 child_inode->i_mode = rec1->rec_type & S_IFMT;
5667 rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
5669 CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
5670 obj->oo_inode->i_ino, name, child_inode->i_ino, rc);
5672 if (child_inode && child_inode != oti->oti_inode)
5674 LASSERT(osd_invariant(obj));
5675 osd_trans_exec_check(env, th, OSD_OT_INSERT);
5680 * Initialize osd Iterator for given osd index object.
5682 * \param dt osd index object
5685 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
5686 struct dt_object *dt,
5689 struct osd_it_iam *it;
5690 struct osd_object *obj = osd_dt_obj(dt);
5691 struct lu_object *lo = &dt->do_lu;
5692 struct iam_path_descr *ipd;
5693 struct iam_container *bag = &obj->oo_dir->od_container;
5695 if (!dt_object_exists(dt))
5696 return ERR_PTR(-ENOENT);
5700 return ERR_PTR(-ENOMEM);
5702 ipd = osd_it_ipd_get(env, bag);
5703 if (likely(ipd != NULL)) {
5707 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
5708 return (struct dt_it *)it;
5711 return ERR_PTR(-ENOMEM);
5716 * free given Iterator.
5718 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
5720 struct osd_it_iam *it = (struct osd_it_iam *)di;
5721 struct osd_object *obj = it->oi_obj;
5723 iam_it_fini(&it->oi_it);
5724 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
5725 osd_object_put(env, obj);
5730 * Move Iterator to record specified by \a key
5732 * \param di osd iterator
5733 * \param key key for index
5735 * \retval +ve di points to record with least key not larger than key
5736 * \retval 0 di points to exact matched key
5737 * \retval -ve failure
5740 static int osd_it_iam_get(const struct lu_env *env,
5741 struct dt_it *di, const struct dt_key *key)
5743 struct osd_thread_info *oti = osd_oti_get(env);
5744 struct osd_it_iam *it = (struct osd_it_iam *)di;
5746 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
5747 /* swab quota uid/gid */
5748 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5749 key = (struct dt_key *)&oti->oti_quota_id;
5752 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
5758 * \param di osd iterator
5760 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
5762 struct osd_it_iam *it = (struct osd_it_iam *)di;
5764 iam_it_put(&it->oi_it);
5768 * Move iterator by one record
5770 * \param di osd iterator
5772 * \retval +1 end of container reached
5774 * \retval -ve failure
5777 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
5779 struct osd_it_iam *it = (struct osd_it_iam *)di;
5781 return iam_it_next(&it->oi_it);
5785 * Return pointer to the key under iterator.
5788 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
5789 const struct dt_it *di)
5791 struct osd_thread_info *oti = osd_oti_get(env);
5792 struct osd_it_iam *it = (struct osd_it_iam *)di;
5793 struct osd_object *obj = it->oi_obj;
5796 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
5798 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
5799 /* swab quota uid/gid */
5800 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
5801 key = (struct dt_key *)&oti->oti_quota_id;
5808 * Return size of key under iterator (in bytes)
5811 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
5813 struct osd_it_iam *it = (struct osd_it_iam *)di;
5815 return iam_it_key_size(&it->oi_it);
5819 osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
5821 /* check if file type is required */
5822 if (ent->lde_attrs & LUDA_TYPE) {
5823 struct luda_type *lt;
5824 int align = sizeof(*lt) - 1;
5826 len = (len + align) & ~align;
5827 lt = (struct luda_type *)(ent->lde_name + len);
5828 lt->lt_type = cpu_to_le16(DTTOIF(type));
5831 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
5835 * build lu direct from backend fs dirent.
5839 osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
5840 char *name, __u16 namelen, __u16 type, __u32 attr)
5842 ent->lde_attrs = attr | LUDA_FID;
5843 fid_cpu_to_le(&ent->lde_fid, fid);
5845 ent->lde_hash = cpu_to_le64(offset);
5846 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
5848 strncpy(ent->lde_name, name, namelen);
5849 ent->lde_name[namelen] = '\0';
5850 ent->lde_namelen = cpu_to_le16(namelen);
5852 /* append lustre attributes */
5853 osd_it_append_attrs(ent, namelen, type);
5857 * Return pointer to the record under iterator.
5859 static int osd_it_iam_rec(const struct lu_env *env,
5860 const struct dt_it *di,
5861 struct dt_rec *dtrec, __u32 attr)
5863 struct osd_it_iam *it = (struct osd_it_iam *)di;
5864 struct osd_thread_info *info = osd_oti_get(env);
5867 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
5868 const struct osd_fid_pack *rec;
5869 struct lu_fid *fid = &info->oti_fid;
5870 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
5876 name = (char *)iam_it_key_get(&it->oi_it);
5878 RETURN(PTR_ERR(name));
5880 namelen = iam_it_key_size(&it->oi_it);
5882 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
5884 RETURN(PTR_ERR(rec));
5886 rc = osd_fid_unpack(fid, rec);
5890 hash = iam_it_store(&it->oi_it);
5892 /* IAM does not store object type in IAM index (dir) */
5893 osd_it_pack_dirent(lde, fid, hash, name, namelen,
5895 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
5896 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
5897 (struct iam_rec *)dtrec);
5898 osd_quota_unpack(it->oi_obj, dtrec);
5900 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
5901 (struct iam_rec *)dtrec);
5908 * Returns cookie for current Iterator position.
5910 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
5912 struct osd_it_iam *it = (struct osd_it_iam *)di;
5914 return iam_it_store(&it->oi_it);
5918 * Restore iterator from cookie.
5920 * \param di osd iterator
5921 * \param hash Iterator location cookie
5923 * \retval +ve di points to record with least key not larger than key.
5924 * \retval 0 di points to exact matched key
5925 * \retval -ve failure
5928 static int osd_it_iam_load(const struct lu_env *env,
5929 const struct dt_it *di, __u64 hash)
5931 struct osd_it_iam *it = (struct osd_it_iam *)di;
5933 return iam_it_load(&it->oi_it, hash);
5936 static const struct dt_index_operations osd_index_iam_ops = {
5937 .dio_lookup = osd_index_iam_lookup,
5938 .dio_declare_insert = osd_index_declare_iam_insert,
5939 .dio_insert = osd_index_iam_insert,
5940 .dio_declare_delete = osd_index_declare_iam_delete,
5941 .dio_delete = osd_index_iam_delete,
5943 .init = osd_it_iam_init,
5944 .fini = osd_it_iam_fini,
5945 .get = osd_it_iam_get,
5946 .put = osd_it_iam_put,
5947 .next = osd_it_iam_next,
5948 .key = osd_it_iam_key,
5949 .key_size = osd_it_iam_key_size,
5950 .rec = osd_it_iam_rec,
5951 .store = osd_it_iam_store,
5952 .load = osd_it_iam_load
5958 * Creates or initializes iterator context.
5960 * \retval struct osd_it_ea, iterator structure on success
5963 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
5964 struct dt_object *dt,
5967 struct osd_object *obj = osd_dt_obj(dt);
5968 struct osd_thread_info *info = osd_oti_get(env);
5969 struct osd_it_ea *oie;
5971 struct lu_object *lo = &dt->do_lu;
5972 struct dentry *obj_dentry;
5975 if (!dt_object_exists(dt) || obj->oo_destroyed)
5976 RETURN(ERR_PTR(-ENOENT));
5978 OBD_SLAB_ALLOC_PTR_GFP(oie, osd_itea_cachep, GFP_NOFS);
5980 RETURN(ERR_PTR(-ENOMEM));
5981 obj_dentry = &oie->oie_dentry;
5983 obj_dentry->d_inode = obj->oo_inode;
5984 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
5985 obj_dentry->d_name.hash = 0;
5987 oie->oie_rd_dirent = 0;
5988 oie->oie_it_dirent = 0;
5989 oie->oie_dirent = NULL;
5990 if (unlikely(!info->oti_it_ea_buf_used)) {
5991 oie->oie_buf = info->oti_it_ea_buf;
5992 info->oti_it_ea_buf_used = 1;
5994 OBD_ALLOC(oie->oie_buf, OSD_IT_EA_BUFSIZE);
5995 if (oie->oie_buf == NULL)
5996 RETURN(ERR_PTR(-ENOMEM));
6000 file = &oie->oie_file;
6002 /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
6003 if (attr & LUDA_64BITHASH)
6004 file->f_mode = FMODE_64BITHASH;
6006 file->f_mode = FMODE_32BITHASH;
6007 file->f_path.dentry = obj_dentry;
6008 file->f_mapping = obj->oo_inode->i_mapping;
6009 file->f_op = obj->oo_inode->i_fop;
6010 set_file_inode(file, obj->oo_inode);
6013 RETURN((struct dt_it *) oie);
6017 * Destroy or finishes iterator context.
6019 * \param di iterator structure to be destroyed
6021 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
6023 struct osd_thread_info *info = osd_oti_get(env);
6024 struct osd_it_ea *oie = (struct osd_it_ea *)di;
6025 struct osd_object *obj = oie->oie_obj;
6026 struct inode *inode = obj->oo_inode;
6029 oie->oie_file.f_op->release(inode, &oie->oie_file);
6030 osd_object_put(env, obj);
6031 if (unlikely(oie->oie_buf != info->oti_it_ea_buf))
6032 OBD_FREE(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6034 info->oti_it_ea_buf_used = 0;
6035 OBD_SLAB_FREE_PTR(oie, osd_itea_cachep);
6040 * It position the iterator at given key, so that next lookup continues from
6041 * that key Or it is similar to dio_it->load() but based on a key,
6042 * rather than file position.
6044 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
6047 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
6049 static int osd_it_ea_get(const struct lu_env *env,
6050 struct dt_it *di, const struct dt_key *key)
6052 struct osd_it_ea *it = (struct osd_it_ea *)di;
6055 LASSERT(((const char *)key)[0] == '\0');
6056 it->oie_file.f_pos = 0;
6057 it->oie_rd_dirent = 0;
6058 it->oie_it_dirent = 0;
6059 it->oie_dirent = NULL;
6067 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
6071 struct osd_filldir_cbs {
6072 #ifdef HAVE_DIR_CONTEXT
6073 struct dir_context ctx;
6075 struct osd_it_ea *it;
6078 * It is called internally by ->readdir(). It fills the
6079 * iterator's in-memory data structure with required
6080 * information i.e. name, namelen, rec_size etc.
6082 * \param buf in which information to be filled in.
6083 * \param name name of the file in given dir
6085 * \retval 0 on success
6086 * \retval 1 on buffer full
6088 #ifdef HAVE_FILLDIR_USE_CTX
6089 static int osd_ldiskfs_filldir(struct dir_context *buf,
6091 static int osd_ldiskfs_filldir(void *buf,
6093 const char *name, int namelen,
6094 loff_t offset, __u64 ino, unsigned d_type)
6096 struct osd_it_ea *it =
6097 ((struct osd_filldir_cbs *)buf)->it;
6098 struct osd_object *obj = it->oie_obj;
6099 struct osd_it_ea_dirent *ent = it->oie_dirent;
6100 struct lu_fid *fid = &ent->oied_fid;
6101 struct osd_fid_pack *rec;
6104 /* this should never happen */
6105 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
6106 CERROR("ldiskfs return invalid namelen %d\n", namelen);
6110 if ((void *) ent - it->oie_buf + sizeof(*ent) + namelen >
6114 /* "." is just the object itself. */
6115 if (namelen == 1 && name[0] == '.') {
6116 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6117 } else if (d_type & LDISKFS_DIRENT_LUFID) {
6118 rec = (struct osd_fid_pack*) (name + namelen + 1);
6119 if (osd_fid_unpack(fid, rec) != 0)
6124 d_type &= ~LDISKFS_DIRENT_LUFID;
6126 /* NOT export local root. */
6127 if (unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
6128 ino = obj->oo_inode->i_ino;
6129 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6132 ent->oied_ino = ino;
6133 ent->oied_off = offset;
6134 ent->oied_namelen = namelen;
6135 ent->oied_type = d_type;
6137 memcpy(ent->oied_name, name, namelen);
6139 it->oie_rd_dirent++;
6140 it->oie_dirent = (void *) ent + cfs_size_round(sizeof(*ent) + namelen);
6145 * Calls ->readdir() to load a directory entry at a time
6146 * and stored it in iterator's in-memory data structure.
6148 * \param di iterator's in memory structure
6150 * \retval 0 on success
6151 * \retval -ve on error
6152 * \retval +1 reach the end of entry
6154 static int osd_ldiskfs_it_fill(const struct lu_env *env,
6155 const struct dt_it *di)
6157 struct osd_it_ea *it = (struct osd_it_ea *)di;
6158 struct osd_object *obj = it->oie_obj;
6159 struct inode *inode = obj->oo_inode;
6160 struct htree_lock *hlock = NULL;
6161 struct file *filp = &it->oie_file;
6163 struct osd_filldir_cbs buf = {
6164 #ifdef HAVE_DIR_CONTEXT
6165 .ctx.actor = osd_ldiskfs_filldir,
6171 it->oie_dirent = it->oie_buf;
6172 it->oie_rd_dirent = 0;
6174 if (obj->oo_hl_head != NULL) {
6175 hlock = osd_oti_get(env)->oti_hlock;
6176 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
6177 inode, LDISKFS_HLOCK_READDIR);
6179 down_read(&obj->oo_ext_idx_sem);
6182 #ifdef HAVE_DIR_CONTEXT
6183 buf.ctx.pos = filp->f_pos;
6184 rc = inode->i_fop->iterate(filp, &buf.ctx);
6185 filp->f_pos = buf.ctx.pos;
6187 rc = inode->i_fop->readdir(filp, &buf, osd_ldiskfs_filldir);
6191 ldiskfs_htree_unlock(hlock);
6193 up_read(&obj->oo_ext_idx_sem);
6195 if (it->oie_rd_dirent == 0) {
6196 /*If it does not get any dirent, it means it has been reached
6197 *to the end of the dir */
6198 it->oie_file.f_pos = ldiskfs_get_htree_eof(&it->oie_file);
6202 it->oie_dirent = it->oie_buf;
6203 it->oie_it_dirent = 1;
6210 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
6211 * to load a directory entry at a time and stored it in
6212 * iterator's in-memory data structure.
6214 * \param di iterator's in memory structure
6216 * \retval +ve iterator reached to end
6217 * \retval 0 iterator not reached to end
6218 * \retval -ve on error
6220 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
6222 struct osd_it_ea *it = (struct osd_it_ea *)di;
6227 if (it->oie_it_dirent < it->oie_rd_dirent) {
6229 (void *) it->oie_dirent +
6230 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
6231 it->oie_dirent->oied_namelen);
6232 it->oie_it_dirent++;
6235 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
6238 rc = osd_ldiskfs_it_fill(env, di);
6245 * Returns the key at current position from iterator's in memory structure.
6247 * \param di iterator's in memory structure
6249 * \retval key i.e. struct dt_key on success
6251 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
6252 const struct dt_it *di)
6254 struct osd_it_ea *it = (struct osd_it_ea *)di;
6256 return (struct dt_key *)it->oie_dirent->oied_name;
6260 * Returns the key's size at current position from iterator's in memory structure.
6262 * \param di iterator's in memory structure
6264 * \retval key_size i.e. struct dt_key on success
6266 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
6268 struct osd_it_ea *it = (struct osd_it_ea *)di;
6270 return it->oie_dirent->oied_namelen;
6273 static inline bool osd_dotdot_has_space(struct ldiskfs_dir_entry_2 *de)
6275 if (LDISKFS_DIR_REC_LEN(de) >=
6276 __LDISKFS_DIR_REC_LEN(2 + 1 + sizeof(struct osd_fid_pack)))
6283 osd_dirent_has_space(struct ldiskfs_dir_entry_2 *de, __u16 namelen,
6284 unsigned blocksize, bool dotdot)
6287 return osd_dotdot_has_space(de);
6289 if (ldiskfs_rec_len_from_disk(de->rec_len, blocksize) >=
6290 __LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
6297 osd_dirent_reinsert(const struct lu_env *env, struct osd_device *dev,
6298 handle_t *jh, struct dentry *dentry,
6299 const struct lu_fid *fid, struct buffer_head *bh,
6300 struct ldiskfs_dir_entry_2 *de, struct htree_lock *hlock,
6303 struct inode *dir = dentry->d_parent->d_inode;
6304 struct inode *inode = dentry->d_inode;
6305 struct osd_fid_pack *rec;
6306 struct ldiskfs_dentry_param *ldp;
6307 int namelen = dentry->d_name.len;
6309 struct osd_thread_info *info = osd_oti_get(env);
6312 if (!LDISKFS_HAS_INCOMPAT_FEATURE(inode->i_sb,
6313 LDISKFS_FEATURE_INCOMPAT_DIRDATA))
6316 /* There is enough space to hold the FID-in-dirent. */
6317 if (osd_dirent_has_space(de, namelen, dir->i_sb->s_blocksize, dotdot)) {
6318 rc = ldiskfs_journal_get_write_access(jh, bh);
6322 de->name[namelen] = 0;
6323 rec = (struct osd_fid_pack *)(de->name + namelen + 1);
6324 rec->fp_len = sizeof(struct lu_fid) + 1;
6325 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
6326 de->file_type |= LDISKFS_DIRENT_LUFID;
6327 rc = ldiskfs_handle_dirty_metadata(jh, NULL, bh);
6334 rc = ldiskfs_delete_entry(jh, dir, de, bh);
6338 ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
6339 osd_get_ldiskfs_dirent_param(ldp, fid);
6340 dentry->d_fsdata = (void *)ldp;
6341 ll_vfs_dq_init(dir);
6342 rc = osd_ldiskfs_add_entry(info, dev, jh, dentry, inode, hlock);
6343 /* It is too bad, we cannot reinsert the name entry back.
6344 * That means we lose it! */
6346 CDEBUG(D_LFSCK, "%s: fail to reinsert the dirent, "
6347 "dir = %lu/%u, name = %.*s, "DFID": rc = %d\n",
6348 osd_ino2name(inode),
6349 dir->i_ino, dir->i_generation, namelen,
6350 dentry->d_name.name, PFID(fid), rc);
6356 osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
6357 struct osd_it_ea *it, struct lu_fid *fid,
6358 struct osd_inode_id *id, __u32 *attr)
6360 struct osd_thread_info *info = osd_oti_get(env);
6361 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
6362 struct osd_device *dev = osd_obj2dev(obj);
6363 struct super_block *sb = osd_sb(dev);
6364 const char *devname = osd_name(dev);
6365 struct osd_it_ea_dirent *ent = it->oie_dirent;
6366 struct inode *dir = obj->oo_inode;
6367 struct htree_lock *hlock = NULL;
6368 struct buffer_head *bh = NULL;
6369 handle_t *jh = NULL;
6370 struct ldiskfs_dir_entry_2 *de;
6371 struct dentry *dentry;
6372 struct inode *inode;
6373 const struct lu_fid *pfid = lu_object_fid(&obj->oo_dt.do_lu);
6376 bool dotdot = false;
6380 if (ent->oied_name[0] == '.') {
6381 if (ent->oied_namelen == 1)
6384 if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
6388 osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
6389 inode = osd_iget(info, dev, id);
6390 if (IS_ERR(inode)) {
6391 rc = PTR_ERR(inode);
6392 if (rc == -ENOENT || rc == -ESTALE) {
6393 /* Maybe dangling name entry, or
6394 * corrupted directory entry. */
6395 *attr |= LUDA_UNKNOWN;
6398 CDEBUG(D_LFSCK, "%s: fail to iget() for dirent "
6399 "check_repair, dir = %lu/%u, name = %.*s, "
6400 "ino = %llu, rc = %d\n",
6401 devname, dir->i_ino, dir->i_generation,
6402 ent->oied_namelen, ent->oied_name,
6409 dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
6411 rc = osd_get_lma(info, inode, dentry, &info->oti_ost_attrs);
6412 if (rc == -ENODATA || !fid_is_sane(&lma->lma_self_fid))
6417 /* We need to ensure that the name entry is still valid.
6418 * Because it may be removed or renamed by other already.
6420 * The unlink or rename operation will start journal before PDO lock,
6421 * so to avoid deadlock, here we need to start journal handle before
6422 * related PDO lock also. But because we do not know whether there
6423 * will be something to be repaired before PDO lock, we just start
6424 * journal without conditions.
6426 * We may need to remove the name entry firstly, then insert back.
6427 * One credit is for user quota file update.
6428 * One credit is for group quota file update.
6429 * Two credits are for dirty inode. */
6430 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
6431 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
6433 if (dev->od_dirent_journal != 0) {
6436 jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
6439 CDEBUG(D_LFSCK, "%s: fail to start trans for dirent "
6440 "check_repair, dir = %lu/%u, credits = %d, "
6441 "name = %.*s, ino = %llu: rc = %d\n",
6442 devname, dir->i_ino, dir->i_generation, credits,
6443 ent->oied_namelen, ent->oied_name,
6446 GOTO(out_inode, rc);
6449 if (obj->oo_hl_head != NULL) {
6450 hlock = osd_oti_get(env)->oti_hlock;
6451 /* "0" means exclusive lock for the whole directory.
6452 * We need to prevent others access such name entry
6453 * during the delete + insert. Neither HLOCK_ADD nor
6454 * HLOCK_DEL cannot guarantee the atomicity. */
6455 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
6457 down_write(&obj->oo_ext_idx_sem);
6460 if (obj->oo_hl_head != NULL) {
6461 hlock = osd_oti_get(env)->oti_hlock;
6462 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
6463 LDISKFS_HLOCK_LOOKUP);
6465 down_read(&obj->oo_ext_idx_sem);
6469 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
6470 if (IS_ERR(bh) || le32_to_cpu(de->inode) != inode->i_ino) {
6471 *attr |= LUDA_IGNORE;
6476 /* For dotdot entry, if there is not enough space to hold the
6477 * FID-in-dirent, just keep them there. It only happens when the
6478 * device upgraded from 1.8 or restored from MDT file-level backup.
6479 * For the whole directory, only dotdot entry have no FID-in-dirent
6480 * and needs to get FID from LMA when readdir, it will not affect the
6481 * performance much. */
6482 if (dotdot && !osd_dotdot_has_space(de)) {
6483 *attr |= LUDA_UNKNOWN;
6489 if (lu_fid_eq(fid, &lma->lma_self_fid))
6492 if (unlikely(lma->lma_compat & LMAC_NOT_IN_OI)) {
6493 struct lu_fid *tfid = &lma->lma_self_fid;
6495 if (likely(dotdot &&
6496 fid_seq(tfid) == FID_SEQ_LOCAL_FILE &&
6497 fid_oid(tfid) == REMOTE_PARENT_DIR_OID)) {
6498 /* It must be REMOTE_PARENT_DIR and as the
6499 * 'dotdot' entry of remote directory */
6500 *attr |= LUDA_IGNORE;
6502 CDEBUG(D_LFSCK, "%s: expect remote agent "
6503 "parent directory, but got %.*s under "
6504 "dir = %lu/%u with the FID "DFID"\n",
6505 devname, ent->oied_namelen,
6506 ent->oied_name, dir->i_ino,
6507 dir->i_generation, PFID(tfid));
6509 *attr |= LUDA_UNKNOWN;
6516 if (!fid_is_zero(fid)) {
6517 rc = osd_verify_ent_by_linkea(env, inode, pfid, ent->oied_name,
6519 if (rc == -ENOENT ||
6521 !(dev->od_scrub.os_scrub.os_file.sf_flags & SF_UPGRADE))) {
6522 /* linkEA does not recognize the dirent entry,
6523 * it may because the dirent entry corruption
6524 * and points to other's inode. */
6525 CDEBUG(D_LFSCK, "%s: the target inode does not "
6526 "recognize the dirent, dir = %lu/%u, "
6527 " name = %.*s, ino = %llu, "
6528 DFID": rc = %d\n", devname, dir->i_ino,
6529 dir->i_generation, ent->oied_namelen,
6530 ent->oied_name, ent->oied_ino, PFID(fid), rc);
6531 *attr |= LUDA_UNKNOWN;
6536 if (rc && rc != -ENODATA) {
6537 CDEBUG(D_LFSCK, "%s: fail to verify FID in the dirent, "
6538 "dir = %lu/%u, name = %.*s, ino = %llu, "
6539 DFID": rc = %d\n", devname, dir->i_ino,
6540 dir->i_generation, ent->oied_namelen,
6541 ent->oied_name, ent->oied_ino, PFID(fid), rc);
6542 *attr |= LUDA_UNKNOWN;
6549 /* linkEA recognizes the dirent entry, the FID-in-LMA is
6550 * valid, trusted, in spite of fid_is_sane(fid) or not. */
6551 if (*attr & LUDA_VERIFY_DRYRUN) {
6552 *fid = lma->lma_self_fid;
6553 *attr |= LUDA_REPAIR;
6560 dev->od_dirent_journal = 1;
6561 if (hlock != NULL) {
6562 ldiskfs_htree_unlock(hlock);
6565 up_read(&obj->oo_ext_idx_sem);
6571 *fid = lma->lma_self_fid;
6573 /* Update or append the FID-in-dirent. */
6574 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
6575 bh, de, hlock, dotdot);
6577 *attr |= LUDA_REPAIR;
6579 CDEBUG(D_LFSCK, "%s: fail to re-insert FID after "
6580 "the dirent, dir = %lu/%u, name = %.*s, "
6581 "ino = %llu, "DFID": rc = %d\n",
6582 devname, dir->i_ino, dir->i_generation,
6583 ent->oied_namelen, ent->oied_name,
6584 ent->oied_ino, PFID(fid), rc);
6586 /* lma is NULL, trust the FID-in-dirent if it is valid. */
6587 if (*attr & LUDA_VERIFY_DRYRUN) {
6588 if (fid_is_sane(fid)) {
6589 *attr |= LUDA_REPAIR;
6590 } else if (dev->od_index == 0) {
6591 lu_igif_build(fid, inode->i_ino,
6592 inode->i_generation);
6593 *attr |= LUDA_UPGRADE;
6601 dev->od_dirent_journal = 1;
6602 if (hlock != NULL) {
6603 ldiskfs_htree_unlock(hlock);
6606 up_read(&obj->oo_ext_idx_sem);
6613 if (unlikely(fid_is_sane(fid))) {
6614 /* FID-in-dirent exists, but FID-in-LMA is lost.
6615 * Trust the FID-in-dirent, and add FID-in-LMA. */
6616 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
6618 *attr |= LUDA_REPAIR;
6620 CDEBUG(D_LFSCK, "%s: fail to set LMA for "
6621 "update dirent, dir = %lu/%u, "
6622 "name = %.*s, ino = %llu, "
6624 devname, dir->i_ino, dir->i_generation,
6625 ent->oied_namelen, ent->oied_name,
6626 ent->oied_ino, PFID(fid), rc);
6627 } else if (dev->od_index == 0) {
6628 lu_igif_build(fid, inode->i_ino, inode->i_generation);
6629 /* It is probably IGIF object. Only aappend the
6630 * FID-in-dirent. OI scrub will process FID-in-LMA. */
6631 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
6632 bh, de, hlock, dotdot);
6634 *attr |= LUDA_UPGRADE;
6636 CDEBUG(D_LFSCK, "%s: fail to append IGIF "
6637 "after the dirent, dir = %lu/%u, "
6638 "name = %.*s, ino = %llu, "
6640 devname, dir->i_ino, dir->i_generation,
6641 ent->oied_namelen, ent->oied_name,
6642 ent->oied_ino, PFID(fid), rc);
6651 if (hlock != NULL) {
6652 ldiskfs_htree_unlock(hlock);
6654 if (dev->od_dirent_journal != 0)
6655 up_write(&obj->oo_ext_idx_sem);
6657 up_read(&obj->oo_ext_idx_sem);
6661 ldiskfs_journal_stop(jh);
6665 if (rc >= 0 && !dirty)
6666 dev->od_dirent_journal = 0;
6672 * Returns the value at current position from iterator's in memory structure.
6674 * \param di struct osd_it_ea, iterator's in memory structure
6675 * \param attr attr requested for dirent.
6676 * \param lde lustre dirent
6678 * \retval 0 no error and \param lde has correct lustre dirent.
6679 * \retval -ve on error
6681 static inline int osd_it_ea_rec(const struct lu_env *env,
6682 const struct dt_it *di,
6683 struct dt_rec *dtrec, __u32 attr)
6685 struct osd_it_ea *it = (struct osd_it_ea *)di;
6686 struct osd_object *obj = it->oie_obj;
6687 struct osd_device *dev = osd_obj2dev(obj);
6688 struct osd_thread_info *oti = osd_oti_get(env);
6689 struct osd_inode_id *id = &oti->oti_id;
6690 struct lu_fid *fid = &it->oie_dirent->oied_fid;
6691 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
6692 __u32 ino = it->oie_dirent->oied_ino;
6696 LASSERT(obj->oo_inode != dev->od_mdt_map->omm_remote_parent->d_inode);
6698 if (attr & LUDA_VERIFY) {
6699 if (unlikely(ino == osd_remote_parent_ino(dev))) {
6700 attr |= LUDA_IGNORE;
6701 /* If the parent is on remote MDT, and there
6702 * is no FID-in-dirent, then we have to get
6703 * the parent FID from the linkEA. */
6704 if (!fid_is_sane(fid) &&
6705 it->oie_dirent->oied_namelen == 2 &&
6706 it->oie_dirent->oied_name[0] == '.' &&
6707 it->oie_dirent->oied_name[1] == '.')
6708 osd_get_pfid_from_linkea(env, obj, fid);
6710 rc = osd_dirent_check_repair(env, obj, it, fid, id,
6714 if (!fid_is_sane(fid))
6715 attr |= LUDA_UNKNOWN;
6717 attr &= ~LU_DIRENT_ATTRS_MASK;
6718 if (!fid_is_sane(fid)) {
6719 bool is_dotdot = false;
6720 if (it->oie_dirent->oied_namelen == 2 &&
6721 it->oie_dirent->oied_name[0] == '.' &&
6722 it->oie_dirent->oied_name[1] == '.')
6724 /* If the parent is on remote MDT, and there
6725 * is no FID-in-dirent, then we have to get
6726 * the parent FID from the linkEA. */
6727 if (ino == osd_remote_parent_ino(dev) && is_dotdot) {
6728 rc = osd_get_pfid_from_linkea(env, obj, fid);
6730 if (is_dotdot == false &&
6731 OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP))
6734 rc = osd_ea_fid_get(env, obj, ino, fid, id);
6737 osd_id_gen(id, ino, OSD_OII_NOGEN);
6741 /* Pack the entry anyway, at least the offset is right. */
6742 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
6743 it->oie_dirent->oied_name,
6744 it->oie_dirent->oied_namelen,
6745 it->oie_dirent->oied_type, attr);
6750 if (osd_remote_fid(env, dev, fid))
6753 if (likely(!(attr & (LUDA_IGNORE | LUDA_UNKNOWN)) && rc == 0))
6754 osd_add_oi_cache(oti, dev, id, fid);
6756 RETURN(rc > 0 ? 0 : rc);
6760 * Returns the record size size at current position.
6762 * This function will return record(lu_dirent) size in bytes.
6764 * \param[in] env execution environment
6765 * \param[in] di iterator's in memory structure
6766 * \param[in] attr attribute of the entry, only requires LUDA_TYPE to
6767 * calculate the lu_dirent size.
6769 * \retval record size(in bytes & in memory) of the current lu_dirent
6772 static int osd_it_ea_rec_size(const struct lu_env *env, const struct dt_it *di,
6775 struct osd_it_ea *it = (struct osd_it_ea *)di;
6777 return lu_dirent_calc_size(it->oie_dirent->oied_namelen, attr);
6781 * Returns a cookie for current position of the iterator head, so that
6782 * user can use this cookie to load/start the iterator next time.
6784 * \param di iterator's in memory structure
6786 * \retval cookie for current position, on success
6788 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
6790 struct osd_it_ea *it = (struct osd_it_ea *)di;
6792 return it->oie_dirent->oied_off;
6796 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
6797 * to load a directory entry at a time and stored it i inn,
6798 * in iterator's in-memory data structure.
6800 * \param di struct osd_it_ea, iterator's in memory structure
6802 * \retval +ve on success
6803 * \retval -ve on error
6805 static int osd_it_ea_load(const struct lu_env *env,
6806 const struct dt_it *di, __u64 hash)
6808 struct osd_it_ea *it = (struct osd_it_ea *)di;
6812 it->oie_file.f_pos = hash;
6814 rc = osd_ldiskfs_it_fill(env, di);
6825 * Index lookup function for interoperability mode (b11826).
6827 * \param key, key i.e. file name to be searched
6829 * \retval +ve, on success
6830 * \retval -ve, on error
6832 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
6833 struct dt_rec *rec, const struct dt_key *key)
6835 struct osd_object *obj = osd_dt_obj(dt);
6840 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
6841 LINVRNT(osd_invariant(obj));
6843 rc = osd_ea_lookup_rec(env, obj, rec, key);
6850 * Index and Iterator operations for interoperability
6851 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
6853 static const struct dt_index_operations osd_index_ea_ops = {
6854 .dio_lookup = osd_index_ea_lookup,
6855 .dio_declare_insert = osd_index_declare_ea_insert,
6856 .dio_insert = osd_index_ea_insert,
6857 .dio_declare_delete = osd_index_declare_ea_delete,
6858 .dio_delete = osd_index_ea_delete,
6860 .init = osd_it_ea_init,
6861 .fini = osd_it_ea_fini,
6862 .get = osd_it_ea_get,
6863 .put = osd_it_ea_put,
6864 .next = osd_it_ea_next,
6865 .key = osd_it_ea_key,
6866 .key_size = osd_it_ea_key_size,
6867 .rec = osd_it_ea_rec,
6868 .rec_size = osd_it_ea_rec_size,
6869 .store = osd_it_ea_store,
6870 .load = osd_it_ea_load
6874 static void *osd_key_init(const struct lu_context *ctx,
6875 struct lu_context_key *key)
6877 struct osd_thread_info *info;
6879 OBD_ALLOC_PTR(info);
6881 return ERR_PTR(-ENOMEM);
6883 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
6884 if (info->oti_it_ea_buf == NULL)
6887 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
6889 info->oti_hlock = ldiskfs_htree_lock_alloc();
6890 if (info->oti_hlock == NULL)
6896 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
6899 return ERR_PTR(-ENOMEM);
6902 static void osd_key_fini(const struct lu_context *ctx,
6903 struct lu_context_key *key, void* data)
6905 struct osd_thread_info *info = data;
6906 struct ldiskfs_inode_info *lli = LDISKFS_I(info->oti_inode);
6907 struct osd_idmap_cache *idc = info->oti_ins_cache;
6909 if (info->oti_inode != NULL)
6911 if (info->oti_hlock != NULL)
6912 ldiskfs_htree_lock_free(info->oti_hlock);
6913 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
6914 lu_buf_free(&info->oti_iobuf.dr_pg_buf);
6915 lu_buf_free(&info->oti_iobuf.dr_bl_buf);
6916 lu_buf_free(&info->oti_big_buf);
6918 LASSERT(info->oti_ins_cache_size > 0);
6919 OBD_FREE(idc, sizeof(*idc) * info->oti_ins_cache_size);
6920 info->oti_ins_cache = NULL;
6921 info->oti_ins_cache_size = 0;
6926 static void osd_key_exit(const struct lu_context *ctx,
6927 struct lu_context_key *key, void *data)
6929 struct osd_thread_info *info = data;
6931 LASSERT(info->oti_r_locks == 0);
6932 LASSERT(info->oti_w_locks == 0);
6933 LASSERT(info->oti_txns == 0);
6936 /* type constructor/destructor: osd_type_init, osd_type_fini */
6937 LU_TYPE_INIT_FINI(osd, &osd_key);
6939 struct lu_context_key osd_key = {
6940 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
6941 .lct_init = osd_key_init,
6942 .lct_fini = osd_key_fini,
6943 .lct_exit = osd_key_exit
6947 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
6948 const char *name, struct lu_device *next)
6950 struct osd_device *osd = osd_dev(d);
6952 if (strlcpy(osd->od_svname, name, sizeof(osd->od_svname))
6953 >= sizeof(osd->od_svname))
6955 return osd_procfs_init(osd, name);
6958 static int osd_fid_init(const struct lu_env *env, struct osd_device *osd)
6960 struct seq_server_site *ss = osd_seq_site(osd);
6964 if (osd->od_is_ost || osd->od_cl_seq != NULL)
6967 if (unlikely(ss == NULL))
6970 OBD_ALLOC_PTR(osd->od_cl_seq);
6971 if (osd->od_cl_seq == NULL)
6974 rc = seq_client_init(osd->od_cl_seq, NULL, LUSTRE_SEQ_METADATA,
6975 osd->od_svname, ss->ss_server_seq);
6977 OBD_FREE_PTR(osd->od_cl_seq);
6978 osd->od_cl_seq = NULL;
6982 if (ss->ss_node_id == 0) {
6983 /* If the OSD on the sequence controller(MDT0), then allocate
6984 * sequence here, otherwise allocate sequence after connected
6985 * to MDT0 (see mdt_register_lwp_callback()). */
6986 rc = seq_server_alloc_meta(osd->od_cl_seq->lcs_srv,
6987 &osd->od_cl_seq->lcs_space, env);
6993 static void osd_fid_fini(const struct lu_env *env, struct osd_device *osd)
6995 if (osd->od_cl_seq == NULL)
6998 seq_client_fini(osd->od_cl_seq);
6999 OBD_FREE_PTR(osd->od_cl_seq);
7000 osd->od_cl_seq = NULL;
7003 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
7007 /* shutdown quota slave instance associated with the device */
7008 if (o->od_quota_slave != NULL) {
7009 qsd_fini(env, o->od_quota_slave);
7010 o->od_quota_slave = NULL;
7013 osd_fid_fini(env, o);
7014 osd_scrub_cleanup(env, o);
7019 static void osd_umount(const struct lu_env *env, struct osd_device *o)
7023 if (o->od_mnt != NULL) {
7024 shrink_dcache_sb(osd_sb(o));
7025 osd_sync(env, &o->od_dt_dev);
7034 static int osd_mount(const struct lu_env *env,
7035 struct osd_device *o, struct lustre_cfg *cfg)
7037 const char *name = lustre_cfg_string(cfg, 0);
7038 const char *dev = lustre_cfg_string(cfg, 1);
7040 unsigned long page, s_flags, lmd_flags = 0;
7041 struct page *__page;
7042 struct file_system_type *type;
7043 char *options = NULL;
7045 struct osd_thread_info *info = osd_oti_get(env);
7046 struct lu_fid *fid = &info->oti_fid;
7047 struct inode *inode;
7048 int rc = 0, force_over_512tb = 0;
7051 if (o->od_mnt != NULL)
7054 if (strlen(dev) >= sizeof(o->od_mntdev))
7056 strcpy(o->od_mntdev, dev);
7058 str = lustre_cfg_string(cfg, 2);
7059 s_flags = simple_strtoul(str, NULL, 0);
7060 str = strstr(str, ":");
7062 lmd_flags = simple_strtoul(str + 1, NULL, 0);
7063 opts = lustre_cfg_string(cfg, 3);
7065 if (opts == NULL || strstr(opts, "bigendian_extents") == NULL) {
7066 CERROR("%s: device %s extents feature is not guaranteed to "
7067 "work on big-endian systems. Use \"bigendian_extents\" "
7068 "mount option to override.\n", name, dev);
7072 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7073 if (opts != NULL && strstr(opts, "force_over_128tb") != NULL) {
7074 CWARN("force_over_128tb option is deprecated. "
7075 "Filesystems less than 512TB can be created without any "
7076 "force options. Use force_over_512tb option for "
7077 "filesystems greater than 512TB.\n");
7080 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 1, 53, 0)
7081 if (opts != NULL && strstr(opts, "force_over_256tb") != NULL) {
7082 CWARN("force_over_256tb option is deprecated. "
7083 "Filesystems less than 512TB can be created without any "
7084 "force options. Use force_over_512tb option for "
7085 "filesystems greater than 512TB.\n");
7089 if (opts != NULL && strstr(opts, "force_over_512tb") != NULL)
7090 force_over_512tb = 1;
7092 __page = alloc_page(GFP_KERNEL);
7094 GOTO(out, rc = -ENOMEM);
7095 page = (unsigned long)page_address(__page);
7096 options = (char *)page;
7099 /* strip out the options for back compatiblity */
7100 static char *sout[] = {
7107 /* strip out option we processed in osd */
7108 "bigendian_extents",
7114 strcat(options, opts);
7115 for (rc = 0, str = options; sout[rc]; ) {
7116 char *op = strstr(str, sout[rc]);
7122 if (op == options || *(op - 1) == ',') {
7123 str = op + strlen(sout[rc]);
7124 if (*str == ',' || *str == '\0') {
7125 *str == ',' ? str++ : str;
7126 memmove(op, str, strlen(str) + 1);
7129 for (str = op; *str != ',' && *str != '\0'; str++)
7133 strncat(options, "user_xattr,acl", 14);
7136 /* Glom up mount options */
7137 if (*options != '\0')
7138 strcat(options, ",");
7139 strlcat(options, "no_mbcache,nodelalloc", PAGE_SIZE);
7141 type = get_fs_type("ldiskfs");
7143 CERROR("%s: cannot find ldiskfs module\n", name);
7144 GOTO(out, rc = -ENODEV);
7147 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
7148 module_put(type->owner);
7150 if (IS_ERR(o->od_mnt)) {
7151 rc = PTR_ERR(o->od_mnt);
7153 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
7157 if (ldiskfs_blocks_count(LDISKFS_SB(osd_sb(o))->s_es) <<
7158 osd_sb(o)->s_blocksize_bits > 512ULL << 40 &&
7159 force_over_512tb == 0) {
7160 CERROR("%s: device %s LDISKFS does not support filesystems "
7161 "greater than 512TB and can cause data corruption. "
7162 "Use \"force_over_512tb\" mount option to override.\n",
7164 GOTO(out_mnt, rc = -EINVAL);
7167 if (lmd_flags & LMD_FLG_DEV_RDONLY) {
7168 if (priv_dev_set_rdonly) {
7169 priv_dev_set_rdonly(osd_sb(o)->s_bdev);
7170 o->od_dt_dev.dd_rdonly = 1;
7171 LCONSOLE_WARN("%s: set dev_rdonly on this device\n",
7174 LCONSOLE_WARN("%s: not support dev_rdonly on this device",
7177 GOTO(out_mnt, rc = -EOPNOTSUPP);
7179 } else if (priv_dev_check_rdonly &&
7180 priv_dev_check_rdonly(osd_sb(o)->s_bdev)) {
7181 CERROR("%s: underlying device %s is marked as "
7182 "read-only. Setup failed\n", name, dev);
7184 GOTO(out_mnt, rc = -EROFS);
7187 if (!LDISKFS_HAS_COMPAT_FEATURE(o->od_mnt->mnt_sb,
7188 LDISKFS_FEATURE_COMPAT_HAS_JOURNAL)) {
7189 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
7190 GOTO(out_mnt, rc = -EINVAL);
7193 #ifdef LDISKFS_MOUNT_DIRDATA
7194 if (LDISKFS_HAS_INCOMPAT_FEATURE(o->od_mnt->mnt_sb,
7195 LDISKFS_FEATURE_INCOMPAT_DIRDATA))
7196 LDISKFS_SB(osd_sb(o))->s_mount_opt |= LDISKFS_MOUNT_DIRDATA;
7197 else if (strstr(name, "MDT")) /* don't complain for MGT or OSTs */
7198 CWARN("%s: device %s was upgraded from Lustre-1.x without "
7199 "enabling the dirdata feature. If you do not want to "
7200 "downgrade to Lustre-1.x again, you can enable it via "
7201 "'tune2fs -O dirdata device'\n", name, dev);
7203 inode = osd_sb(o)->s_root->d_inode;
7204 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
7205 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
7207 CERROR("%s: failed to set lma on %s root inode\n", name, dev);
7211 if (lmd_flags & LMD_FLG_NOSCRUB)
7212 o->od_auto_scrub_interval = AS_NEVER;
7222 __free_page(__page);
7227 static struct lu_device *osd_device_fini(const struct lu_env *env,
7228 struct lu_device *d)
7230 struct osd_device *o = osd_dev(d);
7233 osd_shutdown(env, o);
7235 osd_obj_map_fini(o);
7241 static int osd_device_init0(const struct lu_env *env,
7242 struct osd_device *o,
7243 struct lustre_cfg *cfg)
7245 struct lu_device *l = osd2lu_dev(o);
7246 struct osd_thread_info *info;
7250 /* if the module was re-loaded, env can loose its keys */
7251 rc = lu_env_refill((struct lu_env *) env);
7254 info = osd_oti_get(env);
7257 l->ld_ops = &osd_lu_ops;
7258 o->od_dt_dev.dd_ops = &osd_dt_ops;
7260 spin_lock_init(&o->od_osfs_lock);
7261 mutex_init(&o->od_otable_mutex);
7262 INIT_LIST_HEAD(&o->od_orphan_list);
7264 o->od_read_cache = 1;
7265 o->od_writethrough_cache = 1;
7266 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
7267 o->od_auto_scrub_interval = AS_DEFAULT;
7269 cplen = strlcpy(o->od_svname, lustre_cfg_string(cfg, 4),
7270 sizeof(o->od_svname));
7271 if (cplen >= sizeof(o->od_svname)) {
7276 o->od_index = -1; /* -1 means index is invalid */
7277 rc = server_name2index(o->od_svname, &o->od_index, NULL);
7278 if (rc == LDD_F_SV_TYPE_OST)
7281 o->od_full_scrub_ratio = OFSR_DEFAULT;
7282 o->od_full_scrub_threshold_rate = FULL_SCRUB_THRESHOLD_RATE_DEFAULT;
7283 rc = osd_mount(env, o, cfg);
7287 rc = osd_obj_map_init(env, o);
7291 rc = lu_site_init(&o->od_site, l);
7293 GOTO(out_compat, rc);
7294 o->od_site.ls_bottom_dev = l;
7296 rc = lu_site_init_finish(&o->od_site);
7300 INIT_LIST_HEAD(&o->od_ios_list);
7301 /* setup scrub, including OI files initialization */
7302 rc = osd_scrub_setup(env, o);
7306 rc = osd_procfs_init(o, o->od_svname);
7308 CERROR("%s: can't initialize procfs: rc = %d\n",
7310 GOTO(out_scrub, rc);
7313 LASSERT(l->ld_site->ls_linkage.next != NULL);
7314 LASSERT(l->ld_site->ls_linkage.prev != NULL);
7316 /* initialize quota slave instance */
7317 o->od_quota_slave = qsd_init(env, o->od_svname, &o->od_dt_dev,
7319 if (IS_ERR(o->od_quota_slave)) {
7320 rc = PTR_ERR(o->od_quota_slave);
7321 o->od_quota_slave = NULL;
7322 GOTO(out_procfs, rc);
7330 osd_scrub_cleanup(env, o);
7332 lu_site_fini(&o->od_site);
7334 osd_obj_map_fini(o);
7341 static struct lu_device *osd_device_alloc(const struct lu_env *env,
7342 struct lu_device_type *t,
7343 struct lustre_cfg *cfg)
7345 struct osd_device *o;
7350 return ERR_PTR(-ENOMEM);
7352 rc = dt_device_init(&o->od_dt_dev, t);
7354 /* Because the ctx might be revived in dt_device_init,
7355 * refill the env here */
7356 lu_env_refill((struct lu_env *)env);
7357 rc = osd_device_init0(env, o, cfg);
7359 dt_device_fini(&o->od_dt_dev);
7362 if (unlikely(rc != 0))
7365 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
7368 static struct lu_device *osd_device_free(const struct lu_env *env,
7369 struct lu_device *d)
7371 struct osd_device *o = osd_dev(d);
7374 /* XXX: make osd top device in order to release reference */
7375 d->ld_site->ls_top_dev = d;
7376 lu_site_purge(env, d->ld_site, -1);
7377 if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
7378 LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
7379 lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
7381 lu_site_fini(&o->od_site);
7382 dt_device_fini(&o->od_dt_dev);
7387 static int osd_process_config(const struct lu_env *env,
7388 struct lu_device *d, struct lustre_cfg *cfg)
7390 struct osd_device *o = osd_dev(d);
7394 switch (cfg->lcfg_command) {
7396 rc = osd_mount(env, o, cfg);
7399 lu_dev_del_linkage(d->ld_site, d);
7400 rc = osd_shutdown(env, o);
7403 LASSERT(&o->od_dt_dev);
7404 rc = class_process_proc_param(PARAM_OSD, lprocfs_osd_obd_vars,
7405 cfg, &o->od_dt_dev);
7406 if (rc > 0 || rc == -ENOSYS) {
7407 rc = class_process_proc_param(PARAM_OST,
7408 lprocfs_osd_obd_vars,
7409 cfg, &o->od_dt_dev);
7421 static int osd_recovery_complete(const struct lu_env *env,
7422 struct lu_device *d)
7424 struct osd_device *osd = osd_dev(d);
7428 if (osd->od_quota_slave == NULL)
7431 /* start qsd instance on recovery completion, this notifies the quota
7432 * slave code that we are about to process new requests now */
7433 rc = qsd_start(env, osd->od_quota_slave);
7438 * we use exports to track all osd users
7440 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
7441 struct obd_device *obd, struct obd_uuid *cluuid,
7442 struct obd_connect_data *data, void *localdata)
7444 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
7445 struct lustre_handle conn;
7449 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
7451 rc = class_connect(&conn, obd, cluuid);
7455 *exp = class_conn2export(&conn);
7457 spin_lock(&osd->od_osfs_lock);
7459 spin_unlock(&osd->od_osfs_lock);
7465 * once last export (we don't count self-export) disappeared
7466 * osd can be released
7468 static int osd_obd_disconnect(struct obd_export *exp)
7470 struct obd_device *obd = exp->exp_obd;
7471 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
7472 int rc, release = 0;
7475 /* Only disconnect the underlying layers on the final disconnect. */
7476 spin_lock(&osd->od_osfs_lock);
7478 if (osd->od_connects == 0)
7480 spin_unlock(&osd->od_osfs_lock);
7482 rc = class_disconnect(exp); /* bz 9811 */
7484 if (rc == 0 && release)
7485 class_manual_cleanup(obd);
7489 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
7490 struct lu_device *dev)
7492 struct osd_device *osd = osd_dev(dev);
7493 struct lr_server_data *lsd =
7494 &osd->od_dt_dev.dd_lu_dev.ld_site->ls_tgt->lut_lsd;
7498 if (osd->od_quota_slave != NULL) {
7499 /* set up quota slave objects */
7500 result = qsd_prepare(env, osd->od_quota_slave);
7505 if (lsd->lsd_feature_incompat & OBD_COMPAT_OST) {
7506 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
7507 if (lsd->lsd_feature_rocompat & OBD_ROCOMPAT_IDX_IN_IDIF) {
7508 osd->od_index_in_idif = 1;
7510 osd->od_index_in_idif = 0;
7511 result = osd_register_proc_index_in_idif(osd);
7516 osd->od_index_in_idif = 1;
7520 result = osd_fid_init(env, osd);
7525 static int osd_fid_alloc(const struct lu_env *env, struct obd_export *exp,
7526 struct lu_fid *fid, struct md_op_data *op_data)
7528 struct osd_device *osd = osd_dev(exp->exp_obd->obd_lu_dev);
7530 return seq_client_alloc_fid(env, osd->od_cl_seq, fid);
7533 static const struct lu_object_operations osd_lu_obj_ops = {
7534 .loo_object_init = osd_object_init,
7535 .loo_object_delete = osd_object_delete,
7536 .loo_object_release = osd_object_release,
7537 .loo_object_free = osd_object_free,
7538 .loo_object_print = osd_object_print,
7539 .loo_object_invariant = osd_object_invariant
7542 const struct lu_device_operations osd_lu_ops = {
7543 .ldo_object_alloc = osd_object_alloc,
7544 .ldo_process_config = osd_process_config,
7545 .ldo_recovery_complete = osd_recovery_complete,
7546 .ldo_prepare = osd_prepare,
7549 static const struct lu_device_type_operations osd_device_type_ops = {
7550 .ldto_init = osd_type_init,
7551 .ldto_fini = osd_type_fini,
7553 .ldto_start = osd_type_start,
7554 .ldto_stop = osd_type_stop,
7556 .ldto_device_alloc = osd_device_alloc,
7557 .ldto_device_free = osd_device_free,
7559 .ldto_device_init = osd_device_init,
7560 .ldto_device_fini = osd_device_fini
7563 static struct lu_device_type osd_device_type = {
7564 .ldt_tags = LU_DEVICE_DT,
7565 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
7566 .ldt_ops = &osd_device_type_ops,
7567 .ldt_ctx_tags = LCT_LOCAL,
7570 static int osd_health_check(const struct lu_env *env, struct obd_device *obd)
7572 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
7573 struct super_block *sb = osd_sb(osd);
7575 return (osd->od_mnt == NULL || sb->s_flags & MS_RDONLY);
7579 * lprocfs legacy support.
7581 static struct obd_ops osd_obd_device_ops = {
7582 .o_owner = THIS_MODULE,
7583 .o_connect = osd_obd_connect,
7584 .o_disconnect = osd_obd_disconnect,
7585 .o_fid_alloc = osd_fid_alloc,
7586 .o_health_check = osd_health_check,
7589 static int __init osd_init(void)
7593 CLASSERT(BH_DXLock < sizeof(((struct buffer_head *)0)->b_state) * 8);
7594 #if !defined(CONFIG_DEBUG_MUTEXES) && !defined(CONFIG_DEBUG_SPINLOCK)
7595 /* please, try to keep osd_thread_info smaller than a page */
7596 CLASSERT(sizeof(struct osd_thread_info) <= PAGE_SIZE);
7601 rc = lu_kmem_init(ldiskfs_caches);
7605 #ifdef CONFIG_KALLSYMS
7606 priv_dev_set_rdonly = (void *)kallsyms_lookup_name("dev_set_rdonly");
7607 priv_dev_check_rdonly = (void *)kallsyms_lookup_name("dev_check_rdonly");
7608 /* Clear readonly is unused at this time */
7609 /*priv_dev_clear_rdonly = (void *)kallsyms_lookup_name("dev_clear_rdonly");*/
7612 rc = class_register_type(&osd_obd_device_ops, NULL, true,
7613 lprocfs_osd_module_vars,
7614 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
7616 lu_kmem_fini(ldiskfs_caches);
7620 static void __exit osd_exit(void)
7622 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
7623 lu_kmem_fini(ldiskfs_caches);
7626 MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
7627 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
7628 MODULE_VERSION(LUSTRE_VERSION_STRING);
7629 MODULE_LICENSE("GPL");
7631 module_init(osd_init);
7632 module_exit(osd_exit);