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>
80 /* Maximum EA size is limited by LNET_MTU for remote objects */
81 #define OSD_MAX_EA_SIZE 1048364
84 module_param(ldiskfs_pdo, int, 0644);
85 MODULE_PARM_DESC(ldiskfs_pdo, "ldiskfs with parallel directory operations");
87 int ldiskfs_track_declares_assert;
88 module_param(ldiskfs_track_declares_assert, int, 0644);
89 MODULE_PARM_DESC(ldiskfs_track_declares_assert, "LBUG during tracking of declares");
91 /* Slab to allocate dynlocks */
92 struct kmem_cache *dynlock_cachep;
94 /* Slab to allocate osd_it_ea */
95 struct kmem_cache *osd_itea_cachep;
97 static struct lu_kmem_descr ldiskfs_caches[] = {
99 .ckd_cache = &dynlock_cachep,
100 .ckd_name = "dynlock_cache",
101 .ckd_size = sizeof(struct dynlock_handle)
104 .ckd_cache = &osd_itea_cachep,
105 .ckd_name = "osd_itea_cache",
106 .ckd_size = sizeof(struct osd_it_ea)
113 static const char dot[] = ".";
114 static const char dotdot[] = "..";
116 static const struct lu_object_operations osd_lu_obj_ops;
117 static const struct dt_object_operations osd_obj_ops;
118 static const struct dt_object_operations osd_obj_otable_it_ops;
119 static const struct dt_index_operations osd_index_iam_ops;
120 static const struct dt_index_operations osd_index_ea_ops;
122 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
123 const struct lu_fid *fid);
124 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
125 struct osd_device *osd);
127 int osd_trans_declare_op2rb[] = {
128 [OSD_OT_ATTR_SET] = OSD_OT_ATTR_SET,
129 [OSD_OT_PUNCH] = OSD_OT_MAX,
130 [OSD_OT_XATTR_SET] = OSD_OT_XATTR_SET,
131 [OSD_OT_CREATE] = OSD_OT_DESTROY,
132 [OSD_OT_DESTROY] = OSD_OT_CREATE,
133 [OSD_OT_REF_ADD] = OSD_OT_REF_DEL,
134 [OSD_OT_REF_DEL] = OSD_OT_REF_ADD,
135 [OSD_OT_WRITE] = OSD_OT_WRITE,
136 [OSD_OT_INSERT] = OSD_OT_DELETE,
137 [OSD_OT_DELETE] = OSD_OT_INSERT,
138 [OSD_OT_QUOTA] = OSD_OT_MAX,
141 static int osd_has_index(const struct osd_object *obj)
143 return obj->oo_dt.do_index_ops != NULL;
146 static int osd_object_invariant(const struct lu_object *l)
148 return osd_invariant(osd_obj(l));
152 * Concurrency: doesn't matter
154 static int osd_is_write_locked(const struct lu_env *env, struct osd_object *o)
156 struct osd_thread_info *oti = osd_oti_get(env);
157 return oti->oti_w_locks > 0 && o->oo_owner == env;
161 * Concurrency: doesn't access mutable data
163 static int osd_root_get(const struct lu_env *env,
164 struct dt_device *dev, struct lu_fid *f)
166 lu_local_obj_fid(f, OSD_FS_ROOT_OID);
171 * the following set of functions are used to maintain per-thread
172 * cache of FID->ino mapping. this mechanism is needed to resolve
173 * FID to inode at dt_insert() which in turn stores ino in the
174 * directory entries to keep ldiskfs compatible with ext[34].
175 * due to locking-originated restrictions we can't lookup ino
176 * using LU cache (deadlock is possible). lookup using OI is quite
177 * expensive. so instead we maintain this cache and methods like
178 * dt_create() fill it. so in the majority of cases dt_insert() is
179 * able to find needed mapping in lockless manner.
181 static struct osd_idmap_cache *
182 osd_idc_find(const struct lu_env *env, struct osd_device *osd,
183 const struct lu_fid *fid)
185 struct osd_thread_info *oti = osd_oti_get(env);
186 struct osd_idmap_cache *idc = oti->oti_ins_cache;
188 for (i = 0; i < oti->oti_ins_cache_used; i++) {
189 if (!lu_fid_eq(&idc[i].oic_fid, fid))
191 if (idc[i].oic_dev != osd)
200 static struct osd_idmap_cache *
201 osd_idc_add(const struct lu_env *env, struct osd_device *osd,
202 const struct lu_fid *fid)
204 struct osd_thread_info *oti = osd_oti_get(env);
205 struct osd_idmap_cache *idc;
208 if (unlikely(oti->oti_ins_cache_used >= oti->oti_ins_cache_size)) {
209 i = oti->oti_ins_cache_size * 2;
211 i = OSD_INS_CACHE_SIZE;
212 OBD_ALLOC(idc, sizeof(*idc) * i);
214 return ERR_PTR(-ENOMEM);
215 if (oti->oti_ins_cache != NULL) {
216 memcpy(idc, oti->oti_ins_cache,
217 oti->oti_ins_cache_used * sizeof(*idc));
218 OBD_FREE(oti->oti_ins_cache,
219 oti->oti_ins_cache_used * sizeof(*idc));
221 oti->oti_ins_cache = idc;
222 oti->oti_ins_cache_size = i;
225 idc = oti->oti_ins_cache + oti->oti_ins_cache_used++;
228 idc->oic_lid.oii_ino = 0;
229 idc->oic_lid.oii_gen = 0;
236 * lookup mapping for the given fid in the cache, initialize a
237 * new one if not found. the initialization checks whether the
238 * object is local or remote. for local objects, OI is used to
239 * learn ino/generation. the function is used when the caller
240 * has no information about the object, e.g. at dt_insert().
242 static struct osd_idmap_cache *
243 osd_idc_find_or_init(const struct lu_env *env, struct osd_device *osd,
244 const struct lu_fid *fid)
246 struct osd_idmap_cache *idc;
249 idc = osd_idc_find(env, osd, fid);
250 LASSERT(!IS_ERR(idc));
254 CDEBUG(D_INODE, "%s: FID "DFID" not in the id map cache\n",
255 osd->od_svname, PFID(fid));
257 /* new mapping is needed */
258 idc = osd_idc_add(env, osd, fid);
260 CERROR("%s: FID "DFID" add id map cache failed: %ld\n",
261 osd->od_svname, PFID(fid), PTR_ERR(idc));
266 rc = osd_remote_fid(env, osd, fid);
267 if (unlikely(rc < 0))
271 /* the object is local, lookup in OI */
272 /* XXX: probably cheaper to lookup in LU first? */
273 rc = osd_oi_lookup(osd_oti_get(env), osd, fid,
275 if (unlikely(rc < 0)) {
276 CERROR("can't lookup: rc = %d\n", rc);
280 /* the object is remote */
288 * lookup mapping for given FID and fill it from the given object.
289 * the object is lolcal by definition.
291 static int osd_idc_find_and_init(const struct lu_env *env,
292 struct osd_device *osd,
293 struct osd_object *obj)
295 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
296 struct osd_idmap_cache *idc;
298 idc = osd_idc_find(env, osd, fid);
299 LASSERT(!IS_ERR(idc));
301 if (obj->oo_inode == NULL)
303 if (idc->oic_lid.oii_ino != obj->oo_inode->i_ino) {
304 LASSERT(idc->oic_lid.oii_ino == 0);
305 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
306 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
311 CDEBUG(D_INODE, "%s: FID "DFID" not in the id map cache\n",
312 osd->od_svname, PFID(fid));
314 /* new mapping is needed */
315 idc = osd_idc_add(env, osd, fid);
317 CERROR("%s: FID "DFID" add id map cache failed: %ld\n",
318 osd->od_svname, PFID(fid), PTR_ERR(idc));
322 if (obj->oo_inode != NULL) {
323 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
324 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
330 * OSD object methods.
334 * Concurrency: no concurrent access is possible that early in object
337 static struct lu_object *osd_object_alloc(const struct lu_env *env,
338 const struct lu_object_header *hdr,
341 struct osd_object *mo;
346 struct lu_object_header *h;
347 struct osd_device *o = osd_dev(d);
349 l = &mo->oo_dt.do_lu;
350 if (unlikely(o->od_in_init)) {
357 lu_object_header_init(h);
358 lu_object_init(l, h, d);
359 lu_object_add_top(h, l);
362 dt_object_init(&mo->oo_dt, NULL, d);
363 mo->oo_header = NULL;
366 mo->oo_dt.do_ops = &osd_obj_ops;
367 l->lo_ops = &osd_lu_obj_ops;
368 init_rwsem(&mo->oo_sem);
369 init_rwsem(&mo->oo_ext_idx_sem);
370 spin_lock_init(&mo->oo_guard);
371 INIT_LIST_HEAD(&mo->oo_xattr_list);
378 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
379 struct dentry *dentry, struct lustre_ost_attrs *loa)
383 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
384 (void *)loa, sizeof(*loa));
386 struct lustre_mdt_attrs *lma = &loa->loa_lma;
388 if (rc < sizeof(*lma))
392 lustre_loa_swab(loa, true);
393 /* Check LMA compatibility */
394 if (lma->lma_incompat & ~LMA_INCOMPAT_SUPP) {
395 CWARN("%s: unsupported incompat LMA feature(s) %#x "
396 "for fid = "DFID", ino = %lu\n",
398 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
399 PFID(&lma->lma_self_fid), inode->i_ino);
402 } else if (rc == 0) {
410 * retrieve object from backend ext fs.
412 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
413 struct osd_inode_id *id)
416 struct inode *inode = NULL;
418 /* if we look for an inode withing a running
419 * transaction, then we risk to deadlock */
420 /* osd_dirent_check_repair() breaks this */
421 /*LASSERT(current->journal_info == NULL);*/
423 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
425 CDEBUG(D_INODE, "no inode: ino = %u, rc = %ld\n",
426 id->oii_ino, PTR_ERR(inode));
427 } else if (id->oii_gen != OSD_OII_NOGEN &&
428 inode->i_generation != id->oii_gen) {
429 CDEBUG(D_INODE, "unmatched inode: ino = %u, oii_gen = %u, "
430 "i_generation = %u\n",
431 id->oii_ino, id->oii_gen, inode->i_generation);
433 inode = ERR_PTR(-ESTALE);
434 } else if (inode->i_nlink == 0) {
435 /* due to parallel readdir and unlink,
436 * we can have dead inode here. */
437 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
439 inode = ERR_PTR(-ESTALE);
440 } else if (is_bad_inode(inode)) {
441 CWARN("%s: bad inode: ino = %u\n",
442 osd_dev2name(dev), id->oii_ino);
444 inode = ERR_PTR(-ENOENT);
445 } else if ((rc = osd_attach_jinode(inode))) {
449 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
450 if (id->oii_gen == OSD_OII_NOGEN)
451 osd_id_gen(id, inode->i_ino, inode->i_generation);
453 /* Do not update file c/mtime in ldiskfs.
454 * NB: we don't have any lock to protect this because we don't
455 * have reference on osd_object now, but contention with
456 * another lookup + attr_set can't happen in the tiny window
457 * between if (...) and set S_NOCMTIME. */
458 if (!(inode->i_flags & S_NOCMTIME))
459 inode->i_flags |= S_NOCMTIME;
464 int osd_ldiskfs_add_entry(struct osd_thread_info *info, struct osd_device *osd,
465 handle_t *handle, struct dentry *child,
466 struct inode *inode, struct htree_lock *hlock)
470 rc = __ldiskfs_add_entry(handle, child, inode, hlock);
471 if (rc == -ENOBUFS || rc == -ENOSPC) {
472 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
473 struct inode *parent = child->d_parent->d_inode;
474 struct lu_fid *fid = NULL;
476 rc2 = osd_get_lma(info, parent, child->d_parent, loa);
478 fid = &loa->loa_lma.lma_self_fid;
479 } else if (rc2 == -ENODATA) {
480 if (unlikely(parent == inode->i_sb->s_root->d_inode)) {
481 fid = &info->oti_fid3;
482 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
483 } else if (!osd->od_is_ost && osd->od_index == 0) {
484 fid = &info->oti_fid3;
485 lu_igif_build(fid, parent->i_ino,
486 parent->i_generation);
491 CWARN("%s: directory (inode: %lu, FID: "DFID") %s "
492 "maximum entry limit\n",
493 osd_name(osd), parent->i_ino, PFID(fid),
494 rc == -ENOSPC ? "has reached" : "is approaching");
496 CWARN("%s: directory (inode: %lu, FID: unknown) %s "
497 "maximum entry limit\n",
498 osd_name(osd), parent->i_ino,
499 rc == -ENOSPC ? "has reached" : "is approaching");
501 /* ignore such error now */
511 osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
512 struct osd_inode_id *id, struct lu_fid *fid)
514 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
518 inode = osd_iget(info, dev, id);
522 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
524 *fid = loa->loa_lma.lma_self_fid;
525 } else if (rc == -ENODATA) {
526 if (unlikely(inode == osd_sb(dev)->s_root->d_inode))
527 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
529 lu_igif_build(fid, inode->i_ino, inode->i_generation);
537 static struct inode *osd_iget_check(struct osd_thread_info *info,
538 struct osd_device *dev,
539 const struct lu_fid *fid,
540 struct osd_inode_id *id,
547 /* The cached OI mapping is trustable. If we cannot locate the inode
548 * via the cached OI mapping, then return the failure to the caller
549 * directly without further OI checking. */
552 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
555 if (!trusted && (rc == -ENOENT || rc == -ESTALE))
558 CDEBUG(D_INODE, "no inode for FID: "DFID", ino = %u, rc = %d\n",
559 PFID(fid), id->oii_ino, rc);
563 if (is_bad_inode(inode)) {
568 CDEBUG(D_INODE, "bad inode for FID: "DFID", ino = %u\n",
569 PFID(fid), id->oii_ino);
573 if (id->oii_gen != OSD_OII_NOGEN &&
574 inode->i_generation != id->oii_gen) {
579 CDEBUG(D_INODE, "unmatched inode for FID: "DFID", ino = %u, "
580 "oii_gen = %u, i_generation = %u\n", PFID(fid),
581 id->oii_ino, id->oii_gen, inode->i_generation);
585 if (inode->i_nlink == 0) {
590 CDEBUG(D_INODE, "stale inode for FID: "DFID", ino = %u\n",
591 PFID(fid), id->oii_ino);
595 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
599 __u32 saved_ino = id->oii_ino;
600 __u32 saved_gen = id->oii_gen;
603 LASSERTF(rc == -ESTALE || rc == -ENOENT, "rc = %d\n", rc);
605 rc = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
606 /* XXX: There are four possible cases:
608 * Backup/restore caused the OI invalid.
610 * Someone unlinked the object but NOT removed
611 * the OI mapping, such as mount target device
612 * as ldiskfs, and modify something directly.
614 * Someone just removed the object between the
615 * former oi_lookup and the iget. It is normal.
616 * 4. Other failure cases.
618 * Generally, when the device is mounted, it will
619 * auto check whether the system is restored from
620 * file-level backup or not. We trust such detect
621 * to distinguish the 1st case from the 2nd case:
622 * if the OI files are consistent but may contain
623 * stale OI mappings because of case 2, if iget()
624 * returns -ENOENT or -ESTALE, then it should be
627 /* If the OI mapping was in OI file before the
628 * osd_iget_check(), but now, it is disappear,
629 * then it must be removed by race. That is a
630 * normal race case. */
633 /* It is the OI scrub updated the OI mapping by race.
634 * The new OI mapping must be valid. */
635 if (saved_ino != id->oii_ino ||
636 (saved_gen != id->oii_gen && saved_gen != OSD_OII_NOGEN)) {
645 if (dev->od_scrub.os_scrub.os_file.sf_flags &
647 /* It still can be the case 2, but we cannot
648 * distinguish it from the case 1. So return
649 * -EREMCHG to block current operation until
650 * OI scrub rebuilt the OI mappings. */
658 if (inode->i_generation == id->oii_gen)
663 if (id->oii_gen == OSD_OII_NOGEN)
664 osd_id_gen(id, inode->i_ino, inode->i_generation);
666 /* Do not update file c/mtime in ldiskfs.
667 * NB: we don't have any lock to protect this because we don't
668 * have reference on osd_object now, but contention with
669 * another lookup + attr_set can't happen in the tiny window
670 * between if (...) and set S_NOCMTIME. */
671 if (!(inode->i_flags & S_NOCMTIME))
672 inode->i_flags |= S_NOCMTIME;
689 * \retval +v: new filter_fid, does not contain self-fid
690 * \retval 0: filter_fid_old, contains self-fid
691 * \retval -v: other failure cases
693 int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
694 struct dentry *dentry, struct lu_fid *fid)
696 struct filter_fid_old *ff = &info->oti_ff;
697 struct ost_id *ostid = &info->oti_ostid;
700 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
701 if (rc == sizeof(*ff)) {
703 ostid_set_seq(ostid, le64_to_cpu(ff->ff_seq));
704 rc = ostid_set_id(ostid, le64_to_cpu(ff->ff_objid));
706 * XXX: use 0 as the index for compatibility, the caller will
707 * handle index related issues when necessary.
710 ostid_to_fid(fid, ostid, 0);
711 } else if (rc == sizeof(struct filter_fid)) {
713 } else if (rc >= 0) {
720 static int osd_lma_self_repair(struct osd_thread_info *info,
721 struct osd_device *osd, struct inode *inode,
722 const struct lu_fid *fid, __u32 compat)
727 LASSERT(current->journal_info == NULL);
729 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC,
730 osd_dto_credits_noquota[DTO_XATTR_SET]);
733 CWARN("%s: cannot start journal for lma_self_repair: rc = %d\n",
738 rc = osd_ea_fid_set(info, inode, fid, compat, 0);
740 CWARN("%s: cannot self repair the LMA: rc = %d\n",
742 ldiskfs_journal_stop(jh);
746 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
748 struct osd_thread_info *info = osd_oti_get(env);
749 struct osd_device *osd = osd_obj2dev(obj);
750 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
751 struct lustre_mdt_attrs *lma = &loa->loa_lma;
752 struct inode *inode = obj->oo_inode;
753 struct dentry *dentry = &info->oti_obj_dentry;
754 struct lu_fid *fid = NULL;
755 const struct lu_fid *rfid = lu_object_fid(&obj->oo_dt.do_lu);
759 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
760 (void *)loa, sizeof(*loa));
761 if (rc == -ENODATA && !fid_is_igif(rfid) && osd->od_check_ff) {
762 fid = &lma->lma_self_fid;
763 rc = osd_get_idif(info, inode, dentry, fid);
764 if ((rc > 0) || (rc == -ENODATA && osd->od_index_in_idif)) {
765 /* For the given OST-object, if it has neither LMA nor
766 * FID in XATTR_NAME_FID, then the given FID (which is
767 * contained in the @obj, from client RPC for locating
768 * the OST-object) is trusted. We use it to generate
770 osd_lma_self_repair(info, osd, inode, rfid,
781 lustre_lma_swab(lma);
782 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
783 (CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT) &&
784 S_ISREG(inode->i_mode)))) {
785 CWARN("%s: unsupported incompat LMA feature(s) %#x for "
786 "fid = "DFID", ino = %lu\n", osd_name(osd),
787 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
788 PFID(rfid), inode->i_ino);
791 fid = &lma->lma_self_fid;
792 if (lma->lma_compat & LMAC_STRIPE_INFO &&
794 obj->oo_pfid_in_lma = 1;
795 if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
797 lu_object_set_agent_entry(&obj->oo_dt.do_lu);
801 if (fid != NULL && unlikely(!lu_fid_eq(rfid, fid))) {
802 if (fid_is_idif(rfid) && fid_is_idif(fid)) {
803 struct ost_id *oi = &info->oti_ostid;
804 struct lu_fid *fid1 = &info->oti_fid3;
805 __u32 idx = fid_idif_ost_idx(rfid);
807 /* For old IDIF, the OST index is not part of the IDIF,
808 * Means that different OSTs may have the same IDIFs.
809 * Under such case, we need to make some compatible
810 * check to make sure to trigger OI scrub properly. */
811 if (idx != 0 && fid_idif_ost_idx(fid) == 0) {
812 /* Given @rfid is new, LMA is old. */
813 fid_to_ostid(fid, oi);
814 ostid_to_fid(fid1, oi, idx);
815 if (lu_fid_eq(fid1, rfid)) {
816 if (osd->od_index_in_idif)
817 osd_lma_self_repair(info, osd,
831 struct osd_check_lmv_buf {
832 #ifdef HAVE_DIR_CONTEXT
833 /* please keep it as first member */
834 struct dir_context ctx;
836 struct osd_thread_info *oclb_info;
837 struct osd_device *oclb_dev;
838 struct osd_idmap_cache *oclb_oic;
844 * It is called internally by ->readdir() to filter out the
845 * local slave object's FID of the striped directory.
847 * \retval 1 found the local slave's FID
848 * \retval 0 continue to check next item
849 * \retval -ve for failure
851 #ifdef HAVE_FILLDIR_USE_CTX
852 static int osd_stripe_dir_filldir(struct dir_context *buf,
854 static int osd_stripe_dir_filldir(void *buf,
856 const char *name, int namelen,
857 loff_t offset, __u64 ino, unsigned d_type)
859 struct osd_check_lmv_buf *oclb = (struct osd_check_lmv_buf *)buf;
860 struct osd_thread_info *oti = oclb->oclb_info;
861 struct lu_fid *fid = &oti->oti_fid3;
862 struct osd_inode_id *id = &oti->oti_id3;
863 struct osd_device *dev = oclb->oclb_dev;
864 struct osd_idmap_cache *oic = oclb->oclb_oic;
873 sscanf(name + 1, SFID, RFID(fid));
874 if (!fid_is_sane(fid))
877 if (osd_remote_fid(oti->oti_env, dev, fid))
880 osd_id_gen(id, ino, OSD_OII_NOGEN);
881 inode = osd_iget(oti, dev, id);
883 return PTR_ERR(inode);
886 osd_add_oi_cache(oti, dev, id, fid);
890 osd_oii_insert(dev, oic, true);
891 oclb->oclb_found = true;
896 /* When lookup item under striped directory, we need to locate the master
897 * MDT-object of the striped directory firstly, then the client will send
898 * lookup (getattr_by_name) RPC to the MDT with some slave MDT-object's FID
899 * and the item's name. If the system is restored from MDT file level backup,
900 * then before the OI scrub completely built the OI files, the OI mappings of
901 * the master MDT-object and slave MDT-object may be invalid. Usually, it is
902 * not a problem for the master MDT-object. Because when locate the master
903 * MDT-object, we will do name based lookup (for the striped directory itself)
904 * firstly, during such process we can setup the correct OI mapping for the
905 * master MDT-object. But it will be trouble for the slave MDT-object. Because
906 * the client will not trigger name based lookup on the MDT to locate the slave
907 * MDT-object before locating item under the striped directory, then when
908 * osd_fid_lookup(), it will find that the OI mapping for the slave MDT-object
909 * is invalid and does not know what the right OI mapping is, then the MDT has
910 * to return -EINPROGRESS to the client to notify that the OI scrub is rebuiding
911 * the OI file, related OI mapping is unknown yet, please try again later. And
912 * then client will re-try the RPC again and again until related OI mapping has
913 * been updated. That is quite inefficient.
915 * To resolve above trouble, we will handle it as the following two cases:
917 * 1) The slave MDT-object and the master MDT-object are on different MDTs.
918 * It is relative easy. Be as one of remote MDT-objects, the slave MDT-object
919 * is linked under /REMOTE_PARENT_DIR with the name of its FID string.
920 * We can locate the slave MDT-object via lookup the /REMOTE_PARENT_DIR
921 * directly. Please check osd_fid_lookup().
923 * 2) The slave MDT-object and the master MDT-object reside on the same MDT.
924 * Under such case, during lookup the master MDT-object, we will lookup the
925 * slave MDT-object via readdir against the master MDT-object, because the
926 * slave MDT-objects information are stored as sub-directories with the name
927 * "${FID}:${index}". Then when find the local slave MDT-object, its OI
928 * mapping will be recorded. Then subsequent osd_fid_lookup() will know
929 * the correct OI mapping for the slave MDT-object. */
930 static int osd_check_lmv(struct osd_thread_info *oti, struct osd_device *dev,
931 struct inode *inode, struct osd_idmap_cache *oic)
933 struct lu_buf *buf = &oti->oti_big_buf;
934 struct dentry *dentry = &oti->oti_obj_dentry;
935 struct file *filp = &oti->oti_file;
936 const struct file_operations *fops;
937 struct lmv_mds_md_v1 *lmv1;
938 struct osd_check_lmv_buf oclb = {
939 #ifdef HAVE_DIR_CONTEXT
940 .ctx.actor = osd_stripe_dir_filldir,
951 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, buf->lb_buf,
954 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, NULL, 0);
956 lu_buf_realloc(buf, rc);
957 if (buf->lb_buf == NULL)
958 GOTO(out, rc = -ENOMEM);
964 if (unlikely(rc == 0 || rc == -ENODATA))
970 if (unlikely(buf->lb_buf == NULL)) {
971 lu_buf_realloc(buf, rc);
972 if (buf->lb_buf == NULL)
973 GOTO(out, rc = -ENOMEM);
979 if (le32_to_cpu(lmv1->lmv_magic) != LMV_MAGIC_V1)
983 dentry->d_inode = inode;
984 dentry->d_sb = inode->i_sb;
986 filp->f_path.dentry = dentry;
987 filp->f_mode = FMODE_64BITHASH;
988 filp->f_mapping = inode->i_mapping;
990 filp->private_data = NULL;
991 set_file_inode(filp, inode);
995 #ifdef HAVE_DIR_CONTEXT
996 oclb.ctx.pos = filp->f_pos;
997 rc = fops->iterate(filp, &oclb.ctx);
998 filp->f_pos = oclb.ctx.pos;
1000 rc = fops->readdir(filp, &oclb, osd_stripe_dir_filldir);
1002 } while (rc >= 0 && oclb.oclb_items > 0 && !oclb.oclb_found &&
1003 filp->f_pos != LDISKFS_HTREE_EOF_64BIT);
1004 fops->release(inode, filp);
1008 CDEBUG(D_LFSCK, "%s: fail to check LMV EA, inode = %lu/%u,"
1009 DFID": rc = %d\n", osd_ino2name(inode),
1010 inode->i_ino, inode->i_generation,
1011 PFID(&oic->oic_fid), rc);
1018 static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
1019 const struct lu_fid *fid,
1020 const struct lu_object_conf *conf)
1022 struct osd_thread_info *info;
1023 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
1024 struct osd_device *dev;
1025 struct osd_idmap_cache *oic;
1026 struct osd_inode_id *id;
1027 struct inode *inode = NULL;
1028 struct lustre_scrub *scrub;
1029 struct scrub_file *sf;
1030 __u32 flags = SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT | SS_AUTO_FULL;
1035 bool remote = false;
1036 bool trusted = true;
1037 bool updated = false;
1038 bool checked = false;
1041 LINVRNT(osd_invariant(obj));
1042 LASSERT(obj->oo_inode == NULL);
1043 LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID"\n", PFID(fid));
1045 dev = osd_dev(ldev);
1046 scrub = &dev->od_scrub.os_scrub;
1047 sf = &scrub->os_file;
1048 info = osd_oti_get(env);
1050 oic = &info->oti_cache;
1052 if (OBD_FAIL_CHECK(OBD_FAIL_SRV_ENOENT))
1055 /* For the object is created as locking anchor, or for the object to
1056 * be created on disk. No need to osd_oi_lookup() at here because FID
1057 * shouldn't never be re-used, if it's really a duplicate FID from
1058 * unexpected reason, we should be able to detect it later by calling
1059 * do_create->osd_oi_insert(). */
1060 if (conf && conf->loc_flags & LOC_F_NEW)
1061 GOTO(out, result = 0);
1063 /* Search order: 1. per-thread cache. */
1064 if (lu_fid_eq(fid, &oic->oic_fid) && likely(oic->oic_dev == dev)) {
1070 if (!list_empty(&scrub->os_inconsistent_items)) {
1071 /* Search order: 2. OI scrub pending list. */
1072 result = osd_oii_lookup(dev, fid, id);
1077 /* The OI mapping in the OI file can be updated by the OI scrub
1078 * when we locate the inode via FID. So it may be not trustable. */
1081 /* Search order: 3. OI files. */
1082 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1083 if (result == -ENOENT) {
1084 if (!(fid_is_norm(fid) || fid_is_igif(fid)) ||
1085 fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) ||
1086 !ldiskfs_test_bit(osd_oi_fid2idx(dev,fid),
1088 GOTO(out, result = 0);
1097 obj->oo_inode = NULL;
1098 /* for later passes through checks, not true on first pass */
1099 if (!IS_ERR_OR_NULL(inode))
1102 inode = osd_iget_check(info, dev, fid, id, trusted);
1103 if (!IS_ERR(inode)) {
1104 obj->oo_inode = inode;
1112 result = PTR_ERR(inode);
1113 if (result == -ENOENT || result == -ESTALE)
1114 GOTO(out, result = 0);
1116 if (result != -EREMCHG)
1120 /* We still have chance to get the valid inode: for the
1121 * object which is referenced by remote name entry, the
1122 * object on the local MDT will be linked under the dir
1123 * of "/REMOTE_PARENT_DIR" with its FID string as name.
1125 * We do not know whether the object for the given FID
1126 * is referenced by some remote name entry or not, and
1127 * especially for DNE II, a multiple-linked object may
1128 * have many name entries reside on many MDTs.
1130 * To simplify the operation, OSD will not distinguish
1131 * more, just lookup "/REMOTE_PARENT_DIR". Usually, it
1132 * only happened for the RPC from other MDT during the
1133 * OI scrub, or for the client side RPC with FID only,
1134 * such as FID to path, or from old connected client. */
1136 rc1 = osd_lookup_in_remote_parent(info, dev, fid, id);
1140 flags |= SS_AUTO_PARTIAL;
1141 flags &= ~SS_AUTO_FULL;
1146 if (thread_is_running(&scrub->os_thread)) {
1147 if (scrub->os_partial_scan && !scrub->os_in_join)
1150 if (IS_ERR_OR_NULL(inode) || result)
1151 GOTO(out, result = -EINPROGRESS);
1154 LASSERT(obj->oo_inode == inode);
1156 osd_add_oi_cache(info, dev, id, fid);
1157 osd_oii_insert(dev, oic, true);
1161 if (dev->od_auto_scrub_interval == AS_NEVER) {
1163 GOTO(out, result = -EREMCHG);
1166 LASSERT(obj->oo_inode == inode);
1168 osd_add_oi_cache(info, dev, id, fid);
1173 rc1 = osd_scrub_start(env, dev, flags);
1174 LCONSOLE_WARN("%s: trigger OI scrub by RPC for the " DFID" with flags "
1175 "0x%x, rc = %d\n", osd_name(dev), PFID(fid), flags, rc1);
1176 if (rc1 && rc1 != -EALREADY)
1177 GOTO(out, result = -EREMCHG);
1179 if (IS_ERR_OR_NULL(inode) || result)
1180 GOTO(out, result = -EINPROGRESS);
1183 LASSERT(obj->oo_inode == inode);
1185 osd_add_oi_cache(info, dev, id, fid);
1186 osd_oii_insert(dev, oic, true);
1191 if (unlikely(obj->oo_header))
1194 result = osd_check_lma(env, obj);
1198 LASSERTF(id->oii_ino == inode->i_ino &&
1199 id->oii_gen == inode->i_generation,
1200 "locate wrong inode for FID: "DFID", %u/%u => %ld/%u\n",
1201 PFID(fid), id->oii_ino, id->oii_gen,
1202 inode->i_ino, inode->i_generation);
1204 saved_ino = inode->i_ino;
1205 saved_gen = inode->i_generation;
1207 if (unlikely(result == -ENODATA)) {
1208 /* If the OI scrub updated the OI mapping by race, it
1209 * must be valid. Trust the inode that has no LMA EA. */
1213 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1215 /* The OI mapping is still there, the inode is still
1216 * valid. It is just becaues the inode has no LMA EA. */
1217 if (saved_ino == id->oii_ino &&
1218 saved_gen == id->oii_gen)
1221 /* It is the OI scrub updated the OI mapping by race.
1222 * The new OI mapping must be valid. */
1228 /* "result == -ENOENT" means that the OI mappinghas been
1229 * removed by race, so the inode belongs to other object.
1231 * Others error can be returned directly. */
1232 if (result == -ENOENT) {
1235 obj->oo_inode = NULL;
1240 if (result != -EREMCHG)
1245 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1246 /* "result == -ENOENT" means the cached OI mapping has been removed
1247 * from the OI file by race, above inode belongs to other object. */
1248 if (result == -ENOENT) {
1251 obj->oo_inode = NULL;
1252 GOTO(out, result = 0);
1258 if (saved_ino == id->oii_ino && saved_gen == id->oii_gen) {
1263 /* It is the OI scrub updated the OI mapping by race.
1264 * The new OI mapping must be valid. */
1271 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
1272 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
1274 result = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
1276 if (lma->lma_compat & LMAC_STRIPE_INFO &&
1278 obj->oo_pfid_in_lma = 1;
1279 if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
1281 lu_object_set_agent_entry(&obj->oo_dt.do_lu);
1282 } else if (result != -ENODATA) {
1287 obj->oo_compat_dot_created = 1;
1288 obj->oo_compat_dotdot_created = 1;
1290 if (S_ISDIR(inode->i_mode) &&
1291 (flags & SS_AUTO_PARTIAL || sf->sf_status == SS_SCANNING))
1292 osd_check_lmv(info, dev, inode, oic);
1294 result = osd_attach_jinode(inode);
1299 GOTO(out, result = 0);
1301 LASSERT(!obj->oo_hl_head);
1302 obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
1304 GOTO(out, result = (!obj->oo_hl_head ? -ENOMEM : 0));
1307 if (result || !obj->oo_inode) {
1308 if (!IS_ERR_OR_NULL(inode))
1311 obj->oo_inode = NULL;
1313 fid_zero(&oic->oic_fid);
1316 LINVRNT(osd_invariant(obj));
1321 * Concurrency: shouldn't matter.
1323 static void osd_object_init0(struct osd_object *obj)
1325 LASSERT(obj->oo_inode != NULL);
1326 obj->oo_dt.do_body_ops = &osd_body_ops;
1327 obj->oo_dt.do_lu.lo_header->loh_attr |=
1328 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
1332 * Concurrency: no concurrent access is possible that early in object
1335 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
1336 const struct lu_object_conf *conf)
1338 struct osd_object *obj = osd_obj(l);
1341 LINVRNT(osd_invariant(obj));
1343 if (fid_is_otable_it(&l->lo_header->loh_fid)) {
1344 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
1345 l->lo_header->loh_attr |= LOHA_EXISTS;
1349 result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
1350 obj->oo_dt.do_body_ops = &osd_body_ops_new;
1351 if (result == 0 && obj->oo_inode != NULL) {
1352 struct osd_thread_info *oti = osd_oti_get(env);
1353 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
1355 osd_object_init0(obj);
1356 if (unlikely(obj->oo_header))
1359 result = osd_get_lma(oti, obj->oo_inode,
1360 &oti->oti_obj_dentry, loa);
1362 /* Convert LMAI flags to lustre LMA flags
1363 * and cache it to oo_lma_flags */
1365 lma_to_lustre_flags(loa->loa_lma.lma_incompat);
1366 } else if (result == -ENODATA) {
1371 LINVRNT(osd_invariant(obj));
1375 /* The first part of oxe_buf is xattr name, and is '\0' terminated.
1376 * The left part is for value, binary mode. */
1377 struct osd_xattr_entry {
1378 struct list_head oxe_list;
1382 struct rcu_head oxe_rcu;
1386 static int osd_oxc_get(struct osd_object *obj, const char *name,
1389 struct osd_xattr_entry *tmp;
1390 struct osd_xattr_entry *oxe = NULL;
1391 size_t namelen = strlen(name);
1396 list_for_each_entry_rcu(tmp, &obj->oo_xattr_list, oxe_list) {
1397 if (namelen == tmp->oxe_namelen &&
1398 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1405 GOTO(out, rc = -ENOENT);
1407 if (!oxe->oxe_exist)
1408 GOTO(out, rc = -ENODATA);
1411 rc = oxe->oxe_len - sizeof(*oxe) - oxe->oxe_namelen - 1;
1414 if (buf->lb_buf == NULL)
1417 if (buf->lb_len < rc)
1418 GOTO(out, rc = -ERANGE);
1420 memcpy(buf->lb_buf, &oxe->oxe_buf[namelen + 1], rc);
1428 static void osd_oxc_free(struct rcu_head *head)
1430 struct osd_xattr_entry *oxe;
1432 oxe = container_of(head, struct osd_xattr_entry, oxe_rcu);
1433 OBD_FREE(oxe, oxe->oxe_len);
1436 static void osd_oxc_add(struct osd_object *obj, const char *name,
1437 const char *buf, int buflen)
1439 struct osd_xattr_entry *oxe;
1440 struct osd_xattr_entry *old = NULL;
1441 struct osd_xattr_entry *tmp;
1442 size_t namelen = strlen(name);
1443 size_t len = sizeof(*oxe) + namelen + 1 + buflen;
1445 OBD_ALLOC(oxe, len);
1449 INIT_LIST_HEAD(&oxe->oxe_list);
1451 oxe->oxe_namelen = namelen;
1452 memcpy(oxe->oxe_buf, name, namelen);
1454 LASSERT(buf != NULL);
1455 memcpy(oxe->oxe_buf + namelen + 1, buf, buflen);
1456 oxe->oxe_exist = true;
1458 oxe->oxe_exist = false;
1461 /* this should be rarely called, just remove old and add new */
1462 spin_lock(&obj->oo_guard);
1463 list_for_each_entry(tmp, &obj->oo_xattr_list, oxe_list) {
1464 if (namelen == tmp->oxe_namelen &&
1465 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1471 list_replace_rcu(&old->oxe_list, &oxe->oxe_list);
1472 call_rcu(&old->oxe_rcu, osd_oxc_free);
1474 list_add_tail_rcu(&oxe->oxe_list, &obj->oo_xattr_list);
1476 spin_unlock(&obj->oo_guard);
1479 static void osd_oxc_del(struct osd_object *obj, const char *name)
1481 struct osd_xattr_entry *oxe;
1482 size_t namelen = strlen(name);
1484 spin_lock(&obj->oo_guard);
1485 list_for_each_entry(oxe, &obj->oo_xattr_list, oxe_list) {
1486 if (namelen == oxe->oxe_namelen &&
1487 strncmp(name, oxe->oxe_buf, namelen) == 0) {
1488 list_del_rcu(&oxe->oxe_list);
1489 call_rcu(&oxe->oxe_rcu, osd_oxc_free);
1493 spin_unlock(&obj->oo_guard);
1496 static void osd_oxc_fini(struct osd_object *obj)
1498 struct osd_xattr_entry *oxe, *next;
1500 list_for_each_entry_safe(oxe, next, &obj->oo_xattr_list, oxe_list) {
1501 list_del(&oxe->oxe_list);
1502 OBD_FREE(oxe, oxe->oxe_len);
1507 * Concurrency: no concurrent access is possible that late in object
1510 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
1512 struct osd_object *obj = osd_obj(l);
1513 struct lu_object_header *h = obj->oo_header;
1515 LINVRNT(osd_invariant(obj));
1518 dt_object_fini(&obj->oo_dt);
1519 if (obj->oo_hl_head != NULL)
1520 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
1523 lu_object_header_fini(h);
1529 * Concurrency: no concurrent access is possible that late in object
1532 static void osd_index_fini(struct osd_object *o)
1534 struct iam_container *bag;
1536 if (o->oo_dir != NULL) {
1537 bag = &o->oo_dir->od_container;
1538 if (o->oo_inode != NULL) {
1539 if (bag->ic_object == o->oo_inode)
1540 iam_container_fini(bag);
1542 OBD_FREE_PTR(o->oo_dir);
1548 * Concurrency: no concurrent access is possible that late in object
1549 * life-cycle (for all existing callers, that is. New callers have to provide
1550 * their own locking.)
1552 static int osd_inode_unlinked(const struct inode *inode)
1554 return inode->i_nlink == 0;
1558 OSD_TXN_OI_DELETE_CREDITS = 20,
1559 OSD_TXN_INODE_DELETE_CREDITS = 20
1566 #if OSD_THANDLE_STATS
1568 * Set time when the handle is allocated
1570 static void osd_th_alloced(struct osd_thandle *oth)
1572 oth->oth_alloced = ktime_get();
1576 * Set time when the handle started
1578 static void osd_th_started(struct osd_thandle *oth)
1580 oth->oth_started = ktime_get();
1584 * Check whether the we deal with this handle for too long.
1586 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
1587 ktime_t alloced, ktime_t started,
1590 ktime_t now = ktime_get();
1592 LASSERT(dev != NULL);
1594 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
1595 ktime_us_delta(started, alloced));
1596 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
1597 ktime_us_delta(closed, started));
1598 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
1599 ktime_us_delta(now, closed));
1601 if (ktime_before(ktime_add_ns(alloced, 30 * NSEC_PER_SEC), now)) {
1602 CWARN("transaction handle %p was open for too long: now %lld, alloced %lld, started %lld, closed %lld\n",
1603 oth, now, alloced, started, closed);
1604 libcfs_debug_dumpstack(NULL);
1608 #define OSD_CHECK_SLOW_TH(oth, dev, expr) \
1610 ktime_t __closed = ktime_get(); \
1611 ktime_t __alloced = oth->oth_alloced; \
1612 ktime_t __started = oth->oth_started; \
1615 __osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
1618 #else /* OSD_THANDLE_STATS */
1620 #define osd_th_alloced(h) do {} while(0)
1621 #define osd_th_started(h) do {} while(0)
1622 #define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
1624 #endif /* OSD_THANDLE_STATS */
1627 * Concurrency: doesn't access mutable data.
1629 static int osd_param_is_not_sane(const struct osd_device *dev,
1630 const struct thandle *th)
1632 struct osd_thandle *oh = container_of(th, typeof(*oh), ot_super);
1634 return oh->ot_credits > osd_transaction_size(dev);
1638 * Concurrency: shouldn't matter.
1640 static void osd_trans_commit_cb(struct super_block *sb,
1641 struct ldiskfs_journal_cb_entry *jcb, int error)
1643 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
1644 struct thandle *th = &oh->ot_super;
1645 struct lu_device *lud = &th->th_dev->dd_lu_dev;
1646 struct dt_txn_commit_cb *dcb, *tmp;
1648 LASSERT(oh->ot_handle == NULL);
1651 CERROR("transaction @0x%p commit error: %d\n", th, error);
1653 dt_txn_hook_commit(th);
1655 /* call per-transaction callbacks if any */
1656 list_for_each_entry_safe(dcb, tmp, &oh->ot_commit_dcb_list,
1658 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1659 "commit callback entry: magic=%x name='%s'\n",
1660 dcb->dcb_magic, dcb->dcb_name);
1661 list_del_init(&dcb->dcb_linkage);
1662 dcb->dcb_func(NULL, th, dcb, error);
1665 lu_ref_del_at(&lud->ld_reference, &oh->ot_dev_link, "osd-tx", th);
1672 #ifndef HAVE_SB_START_WRITE
1673 # define sb_start_write(sb) do {} while (0)
1674 # define sb_end_write(sb) do {} while (0)
1677 static struct thandle *osd_trans_create(const struct lu_env *env,
1678 struct dt_device *d)
1680 struct osd_thread_info *oti = osd_oti_get(env);
1681 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1682 struct osd_thandle *oh;
1687 CERROR("%s: someone try to start transaction under "
1688 "readonly mode, should be disabled.\n",
1689 osd_name(osd_dt_dev(d)));
1691 RETURN(ERR_PTR(-EROFS));
1694 /* on pending IO in this thread should left from prev. request */
1695 LASSERT(atomic_read(&iobuf->dr_numreqs) == 0);
1697 sb_start_write(osd_sb(osd_dt_dev(d)));
1699 OBD_ALLOC_GFP(oh, sizeof *oh, GFP_NOFS);
1701 sb_end_write(osd_sb(osd_dt_dev(d)));
1702 RETURN(ERR_PTR(-ENOMEM));
1705 oh->ot_quota_trans = &oti->oti_quota_trans;
1706 memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
1711 INIT_LIST_HEAD(&oh->ot_commit_dcb_list);
1712 INIT_LIST_HEAD(&oh->ot_stop_dcb_list);
1715 memset(oti->oti_declare_ops, 0,
1716 sizeof(oti->oti_declare_ops));
1717 memset(oti->oti_declare_ops_cred, 0,
1718 sizeof(oti->oti_declare_ops_cred));
1719 memset(oti->oti_declare_ops_used, 0,
1720 sizeof(oti->oti_declare_ops_used));
1722 oti->oti_ins_cache_depth++;
1727 void osd_trans_dump_creds(const struct lu_env *env, struct thandle *th)
1729 struct osd_thread_info *oti = osd_oti_get(env);
1730 struct osd_thandle *oh;
1732 oh = container_of0(th, struct osd_thandle, ot_super);
1733 LASSERT(oh != NULL);
1735 CWARN(" create: %u/%u/%u, destroy: %u/%u/%u\n",
1736 oti->oti_declare_ops[OSD_OT_CREATE],
1737 oti->oti_declare_ops_cred[OSD_OT_CREATE],
1738 oti->oti_declare_ops_used[OSD_OT_CREATE],
1739 oti->oti_declare_ops[OSD_OT_DESTROY],
1740 oti->oti_declare_ops_cred[OSD_OT_DESTROY],
1741 oti->oti_declare_ops_used[OSD_OT_DESTROY]);
1742 CWARN(" attr_set: %u/%u/%u, xattr_set: %u/%u/%u\n",
1743 oti->oti_declare_ops[OSD_OT_ATTR_SET],
1744 oti->oti_declare_ops_cred[OSD_OT_ATTR_SET],
1745 oti->oti_declare_ops_used[OSD_OT_ATTR_SET],
1746 oti->oti_declare_ops[OSD_OT_XATTR_SET],
1747 oti->oti_declare_ops_cred[OSD_OT_XATTR_SET],
1748 oti->oti_declare_ops_used[OSD_OT_XATTR_SET]);
1749 CWARN(" write: %u/%u/%u, punch: %u/%u/%u, quota %u/%u/%u\n",
1750 oti->oti_declare_ops[OSD_OT_WRITE],
1751 oti->oti_declare_ops_cred[OSD_OT_WRITE],
1752 oti->oti_declare_ops_used[OSD_OT_WRITE],
1753 oti->oti_declare_ops[OSD_OT_PUNCH],
1754 oti->oti_declare_ops_cred[OSD_OT_PUNCH],
1755 oti->oti_declare_ops_used[OSD_OT_PUNCH],
1756 oti->oti_declare_ops[OSD_OT_QUOTA],
1757 oti->oti_declare_ops_cred[OSD_OT_QUOTA],
1758 oti->oti_declare_ops_used[OSD_OT_QUOTA]);
1759 CWARN(" insert: %u/%u/%u, delete: %u/%u/%u\n",
1760 oti->oti_declare_ops[OSD_OT_INSERT],
1761 oti->oti_declare_ops_cred[OSD_OT_INSERT],
1762 oti->oti_declare_ops_used[OSD_OT_INSERT],
1763 oti->oti_declare_ops[OSD_OT_DELETE],
1764 oti->oti_declare_ops_cred[OSD_OT_DELETE],
1765 oti->oti_declare_ops_used[OSD_OT_DELETE]);
1766 CWARN(" ref_add: %u/%u/%u, ref_del: %u/%u/%u\n",
1767 oti->oti_declare_ops[OSD_OT_REF_ADD],
1768 oti->oti_declare_ops_cred[OSD_OT_REF_ADD],
1769 oti->oti_declare_ops_used[OSD_OT_REF_ADD],
1770 oti->oti_declare_ops[OSD_OT_REF_DEL],
1771 oti->oti_declare_ops_cred[OSD_OT_REF_DEL],
1772 oti->oti_declare_ops_used[OSD_OT_REF_DEL]);
1776 * Concurrency: shouldn't matter.
1778 static int osd_trans_start(const struct lu_env *env, struct dt_device *d,
1781 struct osd_thread_info *oti = osd_oti_get(env);
1782 struct osd_device *dev = osd_dt_dev(d);
1784 struct osd_thandle *oh;
1789 LASSERT(current->journal_info == NULL);
1791 oh = container_of0(th, struct osd_thandle, ot_super);
1792 LASSERT(oh != NULL);
1793 LASSERT(oh->ot_handle == NULL);
1795 rc = dt_txn_hook_start(env, d, th);
1799 if (unlikely(osd_param_is_not_sane(dev, th))) {
1800 static unsigned long last_printed;
1801 static int last_credits;
1803 /* don't make noise on a tiny testing systems
1804 * actual credits misuse will be caught anyway */
1805 if (last_credits != oh->ot_credits &&
1806 time_after(jiffies, last_printed +
1807 msecs_to_jiffies(60 * MSEC_PER_SEC)) &&
1808 osd_transaction_size(dev) > 512) {
1809 CWARN("%s: credits %u > trans_max %u\n", osd_name(dev),
1810 oh->ot_credits, osd_transaction_size(dev));
1811 osd_trans_dump_creds(env, th);
1812 libcfs_debug_dumpstack(NULL);
1813 last_credits = oh->ot_credits;
1814 last_printed = jiffies;
1816 /* XXX Limit the credits to 'max_transaction_buffers', and
1817 * let the underlying filesystem to catch the error if
1818 * we really need so many credits.
1820 * This should be removed when we can calculate the
1821 * credits precisely. */
1822 oh->ot_credits = osd_transaction_size(dev);
1823 } else if (ldiskfs_track_declares_assert != 0) {
1824 /* reserve few credits to prevent an assertion in JBD
1825 * our debugging mechanism will be able to detected
1826 * overuse. this can help to debug single-update
1828 oh->ot_credits += 10;
1829 if (unlikely(osd_param_is_not_sane(dev, th)))
1830 oh->ot_credits = osd_transaction_size(dev);
1834 * XXX temporary stuff. Some abstraction layer should
1837 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, oh->ot_credits);
1841 LASSERT(oti->oti_txns == 0);
1843 lu_device_get(&d->dd_lu_dev);
1844 lu_ref_add_at(&d->dd_lu_dev.ld_reference, &oh->ot_dev_link,
1855 static int osd_seq_exists(const struct lu_env *env,
1856 struct osd_device *osd, u64 seq)
1858 struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
1859 struct seq_server_site *ss = osd_seq_site(osd);
1863 LASSERT(ss != NULL);
1864 LASSERT(ss->ss_server_fld != NULL);
1866 rc = osd_fld_lookup(env, osd, seq, range);
1869 CERROR("%s: can't lookup FLD sequence %#llx: rc = %d\n",
1870 osd_name(osd), seq, rc);
1874 RETURN(ss->ss_node_id == range->lsr_index);
1877 static void osd_trans_stop_cb(struct osd_thandle *oth, int result)
1879 struct dt_txn_commit_cb *dcb;
1880 struct dt_txn_commit_cb *tmp;
1882 /* call per-transaction stop callbacks if any */
1883 list_for_each_entry_safe(dcb, tmp, &oth->ot_stop_dcb_list,
1885 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1886 "commit callback entry: magic=%x name='%s'\n",
1887 dcb->dcb_magic, dcb->dcb_name);
1888 list_del_init(&dcb->dcb_linkage);
1889 dcb->dcb_func(NULL, &oth->ot_super, dcb, result);
1894 * Concurrency: shouldn't matter.
1896 static int osd_trans_stop(const struct lu_env *env, struct dt_device *dt,
1899 int rc = 0, remove_agents = 0;
1900 struct osd_thandle *oh;
1901 struct osd_thread_info *oti = osd_oti_get(env);
1902 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1903 struct osd_device *osd = osd_dt_dev(th->th_dev);
1904 struct qsd_instance *qsd = osd->od_quota_slave;
1905 struct lquota_trans *qtrans;
1908 oh = container_of0(th, struct osd_thandle, ot_super);
1910 remove_agents = oh->ot_remove_agents;
1912 qtrans = oh->ot_quota_trans;
1913 oh->ot_quota_trans = NULL;
1915 if (oh->ot_handle != NULL) {
1917 handle_t *hdl = oh->ot_handle;
1920 * add commit callback
1921 * notice we don't do this in osd_trans_start()
1922 * as underlying transaction can change during truncate
1924 ldiskfs_journal_callback_add(hdl, osd_trans_commit_cb,
1927 LASSERT(oti->oti_txns == 1);
1930 rc = dt_txn_hook_stop(env, th);
1932 CERROR("%s: failed in transaction hook: rc = %d\n",
1935 osd_trans_stop_cb(oh, rc);
1936 /* hook functions might modify th_sync */
1937 hdl->h_sync = th->th_sync;
1939 oh->ot_handle = NULL;
1940 OSD_CHECK_SLOW_TH(oh, osd, rc2 = ldiskfs_journal_stop(hdl));
1942 CERROR("%s: failed to stop transaction: rc = %d\n",
1943 osd_name(osd), rc2);
1947 osd_trans_stop_cb(oh, th->th_result);
1951 /* inform the quota slave device that the transaction is stopping */
1952 qsd_op_end(env, qsd, qtrans);
1954 /* as we want IO to journal and data IO be concurrent, we don't block
1955 * awaiting data IO completion in osd_do_bio(), instead we wait here
1956 * once transaction is submitted to the journal. all reqular requests
1957 * don't do direct IO (except read/write), thus this wait_event becomes
1960 * IMPORTANT: we have to wait till any IO submited by the thread is
1961 * completed otherwise iobuf may be corrupted by different request
1963 wait_event(iobuf->dr_wait,
1964 atomic_read(&iobuf->dr_numreqs) == 0);
1965 osd_fini_iobuf(osd, iobuf);
1967 rc = iobuf->dr_error;
1969 if (unlikely(remove_agents != 0))
1970 osd_process_scheduled_agent_removals(env, osd);
1972 oti->oti_ins_cache_depth--;
1973 /* reset OI cache for safety */
1974 if (oti->oti_ins_cache_depth == 0)
1975 oti->oti_ins_cache_used = 0;
1977 sb_end_write(osd_sb(osd));
1982 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
1984 struct osd_thandle *oh = container_of0(th, struct osd_thandle,
1987 LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
1988 LASSERT(&dcb->dcb_func != NULL);
1989 if (dcb->dcb_flags & DCB_TRANS_STOP)
1990 list_add(&dcb->dcb_linkage, &oh->ot_stop_dcb_list);
1992 list_add(&dcb->dcb_linkage, &oh->ot_commit_dcb_list);
1998 * Called just before object is freed. Releases all resources except for
1999 * object itself (that is released by osd_object_free()).
2001 * Concurrency: no concurrent access is possible that late in object
2004 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
2006 struct osd_object *obj = osd_obj(l);
2007 struct inode *inode = obj->oo_inode;
2009 LINVRNT(osd_invariant(obj));
2012 * If object is unlinked remove fid->ino mapping from object index.
2015 osd_index_fini(obj);
2016 if (inode != NULL) {
2017 struct qsd_instance *qsd = osd_obj2dev(obj)->od_quota_slave;
2018 qid_t uid = i_uid_read(inode);
2019 qid_t gid = i_gid_read(inode);
2021 obj->oo_inode = NULL;
2023 if (!obj->oo_header && qsd) {
2024 struct osd_thread_info *info = osd_oti_get(env);
2025 struct lquota_id_info *qi = &info->oti_qi;
2027 /* Release granted quota to master if necessary */
2028 qi->lqi_id.qid_uid = uid;
2029 qsd_op_adjust(env, qsd, &qi->lqi_id, USRQUOTA);
2031 qi->lqi_id.qid_uid = gid;
2032 qsd_op_adjust(env, qsd, &qi->lqi_id, GRPQUOTA);
2034 qi->lqi_id.qid_uid = i_projid_read(inode);
2035 qsd_op_adjust(env, qsd, &qi->lqi_id, PRJQUOTA);
2041 * Concurrency: ->loo_object_release() is called under site spin-lock.
2043 static void osd_object_release(const struct lu_env *env,
2044 struct lu_object *l)
2046 struct osd_object *o = osd_obj(l);
2047 /* nobody should be releasing a non-destroyed object with nlink=0
2048 * the API allows this, but ldiskfs doesn't like and then report
2049 * this inode as deleted */
2050 if (unlikely(!o->oo_destroyed && o->oo_inode && o->oo_inode->i_nlink == 0))
2055 * Concurrency: shouldn't matter.
2057 static int osd_object_print(const struct lu_env *env, void *cookie,
2058 lu_printer_t p, const struct lu_object *l)
2060 struct osd_object *o = osd_obj(l);
2061 struct iam_descr *d;
2063 if (o->oo_dir != NULL)
2064 d = o->oo_dir->od_container.ic_descr;
2067 return (*p)(env, cookie,
2068 LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
2070 o->oo_inode ? o->oo_inode->i_ino : 0UL,
2071 o->oo_inode ? o->oo_inode->i_generation : 0,
2072 d ? d->id_ops->id_name : "plain");
2076 * Concurrency: shouldn't matter.
2078 int osd_statfs(const struct lu_env *env, struct dt_device *d,
2079 struct obd_statfs *sfs)
2081 struct osd_device *osd = osd_dt_dev(d);
2082 struct super_block *sb = osd_sb(osd);
2083 struct kstatfs *ksfs;
2087 if (unlikely(osd->od_mnt == NULL))
2088 return -EINPROGRESS;
2090 /* osd_lproc.c call this without env, allocate ksfs for that case */
2091 if (unlikely(env == NULL)) {
2092 OBD_ALLOC_PTR(ksfs);
2096 ksfs = &osd_oti_get(env)->oti_ksfs;
2099 result = sb->s_op->statfs(sb->s_root, ksfs);
2103 statfs_pack(sfs, ksfs);
2104 if (unlikely(sb->s_flags & MS_RDONLY))
2105 sfs->os_state |= OS_STATE_READONLY;
2106 if (ldiskfs_has_feature_extents(sb))
2107 sfs->os_maxbytes = sb->s_maxbytes;
2109 sfs->os_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2112 * Reserve some space so to avoid fragmenting the filesystem too much.
2113 * Fragmentation not only impacts performance, but can also increase
2114 * metadata overhead significantly, causing grant calculation to be
2117 * Reserve 0.78% of total space, at least 8MB for small filesystems.
2119 CLASSERT(OSD_STATFS_RESERVED > LDISKFS_MAX_BLOCK_SIZE);
2120 reserved = OSD_STATFS_RESERVED >> sb->s_blocksize_bits;
2121 if (likely(sfs->os_blocks >= reserved << OSD_STATFS_RESERVED_SHIFT))
2122 reserved = sfs->os_blocks >> OSD_STATFS_RESERVED_SHIFT;
2124 sfs->os_blocks -= reserved;
2125 sfs->os_bfree -= min(reserved, sfs->os_bfree);
2126 sfs->os_bavail -= min(reserved, sfs->os_bavail);
2129 if (unlikely(env == NULL))
2135 * Estimate space needed for file creations. We assume the largest filename
2136 * which is 2^64 - 1, hence a filename of 20 chars.
2137 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
2139 #ifdef __LDISKFS_DIR_REC_LEN
2140 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
2142 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
2146 * Concurrency: doesn't access mutable data.
2148 static void osd_conf_get(const struct lu_env *env,
2149 const struct dt_device *dev,
2150 struct dt_device_param *param)
2152 struct super_block *sb = osd_sb(osd_dt_dev(dev));
2156 * XXX should be taken from not-yet-existing fs abstraction layer.
2158 param->ddp_max_name_len = LDISKFS_NAME_LEN;
2159 param->ddp_max_nlink = LDISKFS_LINK_MAX;
2160 param->ddp_symlink_max = sb->s_blocksize;
2161 param->ddp_mount_type = LDD_MT_LDISKFS;
2162 if (ldiskfs_has_feature_extents(sb))
2163 param->ddp_maxbytes = sb->s_maxbytes;
2165 param->ddp_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2166 /* inode are statically allocated, so per-inode space consumption
2167 * is the space consumed by the directory entry */
2168 param->ddp_inodespace = PER_OBJ_USAGE;
2169 /* EXT_INIT_MAX_LEN is the theoretical maximum extent size (32k blocks
2170 * = 128MB) which is unlikely to be hit in real life. Report a smaller
2171 * maximum length to not under count the actual number of extents
2172 * needed for writing a file. */
2173 param->ddp_max_extent_blks = EXT_INIT_MAX_LEN >> 2;
2174 /* worst-case extent insertion metadata overhead */
2175 param->ddp_extent_tax = 6 * LDISKFS_BLOCK_SIZE(sb);
2176 param->ddp_mntopts = 0;
2177 if (test_opt(sb, XATTR_USER))
2178 param->ddp_mntopts |= MNTOPT_USERXATTR;
2179 if (test_opt(sb, POSIX_ACL))
2180 param->ddp_mntopts |= MNTOPT_ACL;
2182 /* LOD might calculate the max stripe count based on max_ea_size,
2183 * so we need take account in the overhead as well,
2184 * xattr_header + magic + xattr_entry_head */
2185 ea_overhead = sizeof(struct ldiskfs_xattr_header) + sizeof(__u32) +
2186 LDISKFS_XATTR_LEN(XATTR_NAME_MAX_LEN);
2188 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
2189 if (ldiskfs_has_feature_ea_inode(sb))
2190 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE -
2194 param->ddp_max_ea_size = sb->s_blocksize - ea_overhead;
2196 if (param->ddp_max_ea_size > OSD_MAX_EA_SIZE)
2197 param->ddp_max_ea_size = OSD_MAX_EA_SIZE;
2199 /* Preferred RPC size for efficient disk IO. 4MB shows good
2200 * all-around performance for ldiskfs, but use bigalloc chunk size
2201 * by default if larger. */
2202 #if defined(LDISKFS_CLUSTER_SIZE)
2203 if (LDISKFS_CLUSTER_SIZE(sb) > DT_DEF_BRW_SIZE)
2204 param->ddp_brw_size = LDISKFS_CLUSTER_SIZE(sb);
2207 param->ddp_brw_size = DT_DEF_BRW_SIZE;
2211 * Concurrency: shouldn't matter.
2213 static int osd_sync(const struct lu_env *env, struct dt_device *d)
2217 CDEBUG(D_CACHE, "%s: syncing OSD\n", osd_dt_dev(d)->od_svname);
2219 rc = ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
2221 CDEBUG(D_CACHE, "%s: synced OSD: rc = %d\n", osd_dt_dev(d)->od_svname,
2228 * Start commit for OSD device.
2230 * An implementation of dt_commit_async method for OSD device.
2231 * Asychronously starts underlayng fs sync and thereby a transaction
2234 * \param env environment
2235 * \param d dt device
2237 * \see dt_device_operations
2239 static int osd_commit_async(const struct lu_env *env,
2240 struct dt_device *d)
2242 struct super_block *s = osd_sb(osd_dt_dev(d));
2245 CDEBUG(D_HA, "%s: async commit OSD\n", osd_dt_dev(d)->od_svname);
2246 RETURN(s->s_op->sync_fs(s, 0));
2249 /* Our own copy of the set readonly functions if present, or NU if not. */
2250 static int (*priv_dev_set_rdonly)(struct block_device *bdev);
2251 static int (*priv_dev_check_rdonly)(struct block_device *bdev);
2252 /* static int (*priv_dev_clear_rdonly)(struct block_device *bdev); */
2255 * Concurrency: shouldn't matter.
2257 static int osd_ro(const struct lu_env *env, struct dt_device *d)
2259 struct super_block *sb = osd_sb(osd_dt_dev(d));
2260 struct block_device *dev = sb->s_bdev;
2261 int rc = -EOPNOTSUPP;
2264 if (priv_dev_set_rdonly) {
2265 struct block_device *jdev = LDISKFS_SB(sb)->journal_bdev;
2268 CERROR("*** setting %s read-only ***\n",
2269 osd_dt_dev(d)->od_svname);
2271 if (sb->s_op->freeze_fs) {
2272 rc = sb->s_op->freeze_fs(sb);
2277 if (jdev && (jdev != dev)) {
2278 CDEBUG(D_IOCTL | D_HA, "set journal dev %lx rdonly\n",
2280 priv_dev_set_rdonly(jdev);
2282 CDEBUG(D_IOCTL | D_HA, "set dev %lx rdonly\n", (long)dev);
2283 priv_dev_set_rdonly(dev);
2285 if (sb->s_op->unfreeze_fs)
2286 sb->s_op->unfreeze_fs(sb);
2291 CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
2292 osd_dt_dev(d)->od_svname, (long)dev, rc);
2298 * Note: we do not count into QUOTA here.
2299 * If we mount with --data_journal we may need more.
2301 const int osd_dto_credits_noquota[DTO_NR] = {
2304 * INDEX_EXTRA_TRANS_BLOCKS(8) +
2305 * SINGLEDATA_TRANS_BLOCKS(8)
2306 * XXX Note: maybe iam need more, since iam have more level than
2309 [DTO_INDEX_INSERT] = 16,
2312 * just modify a single entry, probably merge few within a block
2314 [DTO_INDEX_DELETE] = 1,
2318 [DTO_INDEX_UPDATE] = 16,
2320 * 4(inode, inode bits, groups, GDT)
2321 * notice: OI updates are counted separately with DTO_INDEX_INSERT
2323 [DTO_OBJECT_CREATE] = 4,
2325 * 4(inode, inode bits, groups, GDT)
2326 * notice: OI updates are counted separately with DTO_INDEX_DELETE
2328 [DTO_OBJECT_DELETE] = 4,
2330 * Attr set credits (inode)
2332 [DTO_ATTR_SET_BASE] = 1,
2334 * Xattr set. The same as xattr of EXT3.
2335 * DATA_TRANS_BLOCKS(14)
2336 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
2337 * are also counted in. Do not know why?
2339 [DTO_XATTR_SET] = 14,
2341 * credits for inode change during write.
2343 [DTO_WRITE_BASE] = 3,
2345 * credits for single block write.
2347 [DTO_WRITE_BLOCK] = 14,
2349 * Attr set credits for chown.
2350 * This is extra credits for setattr, and it is null without quota
2352 [DTO_ATTR_SET_CHOWN] = 0
2355 static const struct dt_device_operations osd_dt_ops = {
2356 .dt_root_get = osd_root_get,
2357 .dt_statfs = osd_statfs,
2358 .dt_trans_create = osd_trans_create,
2359 .dt_trans_start = osd_trans_start,
2360 .dt_trans_stop = osd_trans_stop,
2361 .dt_trans_cb_add = osd_trans_cb_add,
2362 .dt_conf_get = osd_conf_get,
2363 .dt_sync = osd_sync,
2365 .dt_commit_async = osd_commit_async,
2368 static void osd_read_lock(const struct lu_env *env, struct dt_object *dt,
2371 struct osd_object *obj = osd_dt_obj(dt);
2372 struct osd_thread_info *oti = osd_oti_get(env);
2374 LINVRNT(osd_invariant(obj));
2376 LASSERT(obj->oo_owner != env);
2377 down_read_nested(&obj->oo_sem, role);
2379 LASSERT(obj->oo_owner == NULL);
2383 static void osd_write_lock(const struct lu_env *env, struct dt_object *dt,
2386 struct osd_object *obj = osd_dt_obj(dt);
2387 struct osd_thread_info *oti = osd_oti_get(env);
2389 LINVRNT(osd_invariant(obj));
2391 LASSERT(obj->oo_owner != env);
2392 down_write_nested(&obj->oo_sem, role);
2394 LASSERT(obj->oo_owner == NULL);
2395 obj->oo_owner = env;
2399 static void osd_read_unlock(const struct lu_env *env, struct dt_object *dt)
2401 struct osd_object *obj = osd_dt_obj(dt);
2402 struct osd_thread_info *oti = osd_oti_get(env);
2404 LINVRNT(osd_invariant(obj));
2406 LASSERT(oti->oti_r_locks > 0);
2408 up_read(&obj->oo_sem);
2411 static void osd_write_unlock(const struct lu_env *env, struct dt_object *dt)
2413 struct osd_object *obj = osd_dt_obj(dt);
2414 struct osd_thread_info *oti = osd_oti_get(env);
2416 LINVRNT(osd_invariant(obj));
2418 LASSERT(obj->oo_owner == env);
2419 LASSERT(oti->oti_w_locks > 0);
2421 obj->oo_owner = NULL;
2422 up_write(&obj->oo_sem);
2425 static int osd_write_locked(const struct lu_env *env, struct dt_object *dt)
2427 struct osd_object *obj = osd_dt_obj(dt);
2429 LINVRNT(osd_invariant(obj));
2431 return obj->oo_owner == env;
2434 static struct timespec *osd_inode_time(const struct lu_env *env,
2435 struct inode *inode, __u64 seconds)
2437 struct osd_thread_info *oti = osd_oti_get(env);
2438 struct timespec *t = &oti->oti_time;
2440 t->tv_sec = seconds;
2442 *t = timespec_trunc(*t, inode->i_sb->s_time_gran);
2446 static void osd_inode_getattr(const struct lu_env *env,
2447 struct inode *inode, struct lu_attr *attr)
2449 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
2450 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
2451 LA_PROJID | LA_FLAGS | LA_NLINK | LA_RDEV |
2452 LA_BLKSIZE | LA_TYPE;
2454 attr->la_atime = LTIME_S(inode->i_atime);
2455 attr->la_mtime = LTIME_S(inode->i_mtime);
2456 attr->la_ctime = LTIME_S(inode->i_ctime);
2457 attr->la_mode = inode->i_mode;
2458 attr->la_size = i_size_read(inode);
2459 attr->la_blocks = inode->i_blocks;
2460 attr->la_uid = i_uid_read(inode);
2461 attr->la_gid = i_gid_read(inode);
2462 attr->la_projid = i_projid_read(inode);
2463 attr->la_flags = ll_inode_to_ext_flags(inode->i_flags);
2464 attr->la_nlink = inode->i_nlink;
2465 attr->la_rdev = inode->i_rdev;
2466 attr->la_blksize = 1 << inode->i_blkbits;
2467 attr->la_blkbits = inode->i_blkbits;
2469 * Ext4 did not transfer inherit flags from raw inode
2470 * to inode flags, and ext4 internally test raw inode
2471 * @i_flags directly. Instead of patching ext4, we do it here.
2473 if (LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL)
2474 attr->la_flags |= LUSTRE_PROJINHERIT_FL;
2477 static int osd_attr_get(const struct lu_env *env,
2478 struct dt_object *dt,
2479 struct lu_attr *attr)
2481 struct osd_object *obj = osd_dt_obj(dt);
2483 if (unlikely(!dt_object_exists(dt)))
2485 if (unlikely(obj->oo_destroyed))
2488 LASSERT(!dt_object_remote(dt));
2489 LINVRNT(osd_invariant(obj));
2491 spin_lock(&obj->oo_guard);
2492 osd_inode_getattr(env, obj->oo_inode, attr);
2493 if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL)
2494 attr->la_flags |= LUSTRE_ORPHAN_FL;
2495 spin_unlock(&obj->oo_guard);
2500 static int osd_declare_attr_qid(const struct lu_env *env,
2501 struct osd_object *obj,
2502 struct osd_thandle *oh, long long bspace,
2503 qid_t old_id, qid_t new_id, bool enforce,
2504 unsigned type, bool ignore_edquot)
2507 struct osd_thread_info *info = osd_oti_get(env);
2508 struct lquota_id_info *qi = &info->oti_qi;
2510 qi->lqi_type = type;
2511 /* inode accounting */
2512 qi->lqi_is_blk = false;
2514 /* one more inode for the new id ... */
2515 qi->lqi_id.qid_uid = new_id;
2517 /* Reserve credits for the new id */
2518 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
2519 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2524 /* and one less inode for the current id */
2525 qi->lqi_id.qid_uid = old_id;
2527 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2528 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2533 /* block accounting */
2534 qi->lqi_is_blk = true;
2536 /* more blocks for the new id ... */
2537 qi->lqi_id.qid_uid = new_id;
2538 qi->lqi_space = bspace;
2540 * Credits for the new uid has been reserved, re-use "obj"
2541 * to save credit reservation.
2543 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2544 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2549 /* and finally less blocks for the current uid */
2550 qi->lqi_id.qid_uid = old_id;
2551 qi->lqi_space = -bspace;
2552 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2553 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2559 static int osd_declare_attr_set(const struct lu_env *env,
2560 struct dt_object *dt,
2561 const struct lu_attr *attr,
2562 struct thandle *handle)
2564 struct osd_thandle *oh;
2565 struct osd_object *obj;
2573 LASSERT(dt != NULL);
2574 LASSERT(handle != NULL);
2576 obj = osd_dt_obj(dt);
2577 LASSERT(osd_invariant(obj));
2579 oh = container_of0(handle, struct osd_thandle, ot_super);
2580 LASSERT(oh->ot_handle == NULL);
2582 osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
2583 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2585 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
2586 osd_dto_credits_noquota[DTO_XATTR_SET]);
2588 if (attr == NULL || obj->oo_inode == NULL)
2591 bspace = obj->oo_inode->i_blocks << 9;
2592 bspace = toqb(bspace);
2594 /* Changing ownership is always preformed by super user, it should not
2595 * fail with EDQUOT unless required explicitly.
2597 * We still need to call the osd_declare_qid() to calculate the journal
2598 * credits for updating quota accounting files and to trigger quota
2599 * space adjustment once the operation is completed.*/
2600 if (attr->la_valid & LA_UID || attr->la_valid & LA_GID) {
2601 bool ignore_edquot = !(attr->la_flags & LUSTRE_SET_SYNC_FL);
2604 CDEBUG(D_QUOTA, "%s: enforce quota on UID %u, GID %u"
2605 "(the quota space is %lld)\n",
2606 obj->oo_inode->i_sb->s_id, attr->la_uid,
2607 attr->la_gid, bspace);
2610 uid = i_uid_read(obj->oo_inode);
2611 enforce = (attr->la_valid & LA_UID) && (attr->la_uid != uid);
2612 rc = osd_declare_attr_qid(env, obj, oh, bspace, uid,
2613 attr->la_uid, enforce, USRQUOTA,
2618 gid = i_gid_read(obj->oo_inode);
2619 enforce = (attr->la_valid & LA_GID) && (attr->la_gid != gid);
2620 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2621 i_gid_read(obj->oo_inode),
2622 attr->la_gid, enforce, GRPQUOTA,
2628 #ifdef HAVE_PROJECT_QUOTA
2629 if (attr->la_valid & LA_PROJID) {
2630 __u32 projid = i_projid_read(obj->oo_inode);
2631 enforce = (attr->la_valid & LA_PROJID) &&
2632 (attr->la_projid != projid);
2633 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2634 (qid_t)projid, (qid_t)attr->la_projid,
2635 enforce, PRJQUOTA, true);
2643 static int osd_inode_setattr(const struct lu_env *env,
2644 struct inode *inode, const struct lu_attr *attr)
2646 __u64 bits = attr->la_valid;
2648 /* Only allow set size for regular file */
2649 if (!S_ISREG(inode->i_mode))
2650 bits &= ~(LA_SIZE | LA_BLOCKS);
2655 if (bits & LA_ATIME)
2656 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
2657 if (bits & LA_CTIME)
2658 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
2659 if (bits & LA_MTIME)
2660 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
2661 if (bits & LA_SIZE) {
2662 spin_lock(&inode->i_lock);
2663 LDISKFS_I(inode)->i_disksize = attr->la_size;
2664 i_size_write(inode, attr->la_size);
2665 spin_unlock(&inode->i_lock);
2668 /* OSD should not change "i_blocks" which is used by quota.
2669 * "i_blocks" should be changed by ldiskfs only. */
2671 inode->i_mode = (inode->i_mode & S_IFMT) |
2672 (attr->la_mode & ~S_IFMT);
2674 i_uid_write(inode, attr->la_uid);
2676 i_gid_write(inode, attr->la_gid);
2677 if (bits & LA_PROJID)
2678 i_projid_write(inode, attr->la_projid);
2679 if (bits & LA_NLINK)
2680 set_nlink(inode, attr->la_nlink);
2682 inode->i_rdev = attr->la_rdev;
2684 if (bits & LA_FLAGS) {
2685 /* always keep S_NOCMTIME */
2686 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
2689 * Ext4 did not transfer inherit flags from
2690 * @inode->i_flags to raw inode i_flags when writing
2691 * flags, we do it explictly here.
2693 if (attr->la_flags & LUSTRE_PROJINHERIT_FL)
2694 LDISKFS_I(inode)->i_flags |= LUSTRE_PROJINHERIT_FL;
2696 LDISKFS_I(inode)->i_flags &= ~LUSTRE_PROJINHERIT_FL;
2701 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
2705 if ((attr->la_valid & LA_UID && attr->la_uid != i_uid_read(inode)) ||
2706 (attr->la_valid & LA_GID && attr->la_gid != i_gid_read(inode))) {
2709 ll_vfs_dq_init(inode);
2711 if (attr->la_valid & LA_UID)
2712 iattr.ia_valid |= ATTR_UID;
2713 if (attr->la_valid & LA_GID)
2714 iattr.ia_valid |= ATTR_GID;
2715 iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
2716 iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
2718 rc = ll_vfs_dq_transfer(inode, &iattr);
2720 CERROR("%s: quota transfer failed: rc = %d. Is quota "
2721 "enforcement enabled on the ldiskfs "
2722 "filesystem?\n", inode->i_sb->s_id, rc);
2727 /* Handle project id transfer here properly */
2728 if (attr->la_valid & LA_PROJID &&
2729 attr->la_projid != i_projid_read(inode)) {
2730 #ifdef HAVE_PROJECT_QUOTA
2731 rc = ldiskfs_transfer_project(inode, attr->la_projid);
2736 CERROR("%s: quota transfer failed: rc = %d. Is project "
2737 "enforcement enabled on the ldiskfs "
2738 "filesystem?\n", inode->i_sb->s_id, rc);
2745 static int osd_attr_set(const struct lu_env *env,
2746 struct dt_object *dt,
2747 const struct lu_attr *attr,
2748 struct thandle *handle)
2750 struct osd_object *obj = osd_dt_obj(dt);
2751 struct inode *inode;
2754 if (!dt_object_exists(dt))
2757 LASSERT(handle != NULL);
2758 LASSERT(!dt_object_remote(dt));
2759 LASSERT(osd_invariant(obj));
2761 osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
2763 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING) &&
2764 !osd_obj2dev(obj)->od_is_ost) {
2765 struct osd_thread_info *oti = osd_oti_get(env);
2766 const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
2767 struct lu_fid *fid1 = &oti->oti_fid;
2768 struct osd_inode_id *id = &oti->oti_id;
2769 struct iam_path_descr *ipd;
2770 struct iam_container *bag;
2771 struct osd_thandle *oh;
2774 fid_cpu_to_be(fid1, fid0);
2775 memset(id, 1, sizeof(*id));
2776 bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
2777 fid0)->oi_dir.od_container;
2778 ipd = osd_idx_ipd_get(env, bag);
2779 if (unlikely(ipd == NULL))
2782 oh = container_of0(handle, struct osd_thandle, ot_super);
2783 rc = iam_update(oh->ot_handle, bag, (const struct iam_key *)fid1,
2784 (const struct iam_rec *)id, ipd);
2785 osd_ipd_put(env, bag, ipd);
2786 return(rc > 0 ? 0 : rc);
2789 inode = obj->oo_inode;
2791 rc = osd_quota_transfer(inode, attr);
2795 spin_lock(&obj->oo_guard);
2796 rc = osd_inode_setattr(env, inode, attr);
2797 spin_unlock(&obj->oo_guard);
2801 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2803 if (!(attr->la_valid & LA_FLAGS))
2806 /* Let's check if there are extra flags need to be set into LMA */
2807 if (attr->la_flags & LUSTRE_LMA_FL_MASKS) {
2808 struct osd_thread_info *info = osd_oti_get(env);
2809 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
2811 LASSERT(!obj->oo_pfid_in_lma);
2813 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
2814 &info->oti_ost_attrs);
2818 lma->lma_incompat |=
2819 lustre_to_lma_flags(attr->la_flags);
2820 lustre_lma_swab(lma);
2821 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA,
2822 lma, sizeof(*lma), XATTR_REPLACE);
2824 struct osd_device *osd = osd_obj2dev(obj);
2826 CWARN("%s: set "DFID" lma flags %u failed: rc = %d\n",
2827 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)),
2828 lma->lma_incompat, rc);
2831 attr->la_flags & LUSTRE_LMA_FL_MASKS;
2833 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
2836 osd_trans_exec_check(env, handle, OSD_OT_ATTR_SET);
2841 static struct dentry *osd_child_dentry_get(const struct lu_env *env,
2842 struct osd_object *obj,
2843 const char *name, const int namelen)
2845 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
2848 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
2849 umode_t mode, struct dt_allocation_hint *hint,
2853 struct osd_device *osd = osd_obj2dev(obj);
2854 struct osd_thandle *oth;
2855 struct dt_object *parent = NULL;
2856 struct inode *inode;
2858 LINVRNT(osd_invariant(obj));
2859 LASSERT(obj->oo_inode == NULL);
2860 LASSERT(obj->oo_hl_head == NULL);
2862 if (S_ISDIR(mode) && ldiskfs_pdo) {
2863 obj->oo_hl_head =ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
2864 if (obj->oo_hl_head == NULL)
2868 oth = container_of(th, struct osd_thandle, ot_super);
2869 LASSERT(oth->ot_handle->h_transaction != NULL);
2871 if (hint != NULL && hint->dah_parent != NULL &&
2872 !dt_object_remote(hint->dah_parent))
2873 parent = hint->dah_parent;
2875 inode = ldiskfs_create_inode(oth->ot_handle,
2876 parent ? osd_dt_obj(parent)->oo_inode :
2877 osd_sb(osd)->s_root->d_inode,
2879 if (!IS_ERR(inode)) {
2880 /* Do not update file c/mtime in ldiskfs. */
2881 inode->i_flags |= S_NOCMTIME;
2883 /* For new created object, it must be consistent,
2884 * and it is unnecessary to scrub against it. */
2885 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
2887 obj->oo_inode = inode;
2890 if (obj->oo_hl_head != NULL) {
2891 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
2892 obj->oo_hl_head = NULL;
2894 result = PTR_ERR(inode);
2896 LINVRNT(osd_invariant(obj));
2904 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
2905 struct lu_attr *attr,
2906 struct dt_allocation_hint *hint,
2907 struct dt_object_format *dof,
2911 struct osd_thandle *oth;
2912 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX | S_ISGID));
2914 LASSERT(S_ISDIR(attr->la_mode));
2916 oth = container_of(th, struct osd_thandle, ot_super);
2917 LASSERT(oth->ot_handle->h_transaction != NULL);
2918 result = osd_mkfile(info, obj, mode, hint, th);
2923 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
2924 struct lu_attr *attr,
2925 struct dt_allocation_hint *hint,
2926 struct dt_object_format *dof,
2930 struct osd_thandle *oth;
2931 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
2933 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
2935 LASSERT(S_ISREG(attr->la_mode));
2937 oth = container_of(th, struct osd_thandle, ot_super);
2938 LASSERT(oth->ot_handle->h_transaction != NULL);
2940 result = osd_mkfile(info, obj, mode, hint, th);
2942 LASSERT(obj->oo_inode != NULL);
2943 if (feat->dif_flags & DT_IND_VARKEY)
2944 result = iam_lvar_create(obj->oo_inode,
2945 feat->dif_keysize_max,
2947 feat->dif_recsize_max,
2950 result = iam_lfix_create(obj->oo_inode,
2951 feat->dif_keysize_max,
2953 feat->dif_recsize_max,
2960 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
2961 struct lu_attr *attr,
2962 struct dt_allocation_hint *hint,
2963 struct dt_object_format *dof,
2966 LASSERT(S_ISREG(attr->la_mode));
2967 return osd_mkfile(info, obj, (attr->la_mode &
2968 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
2971 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
2972 struct lu_attr *attr,
2973 struct dt_allocation_hint *hint,
2974 struct dt_object_format *dof,
2977 LASSERT(S_ISLNK(attr->la_mode));
2978 return osd_mkfile(info, obj, (attr->la_mode &
2979 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
2982 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
2983 struct lu_attr *attr,
2984 struct dt_allocation_hint *hint,
2985 struct dt_object_format *dof,
2988 umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
2991 LINVRNT(osd_invariant(obj));
2992 LASSERT(obj->oo_inode == NULL);
2993 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
2994 S_ISFIFO(mode) || S_ISSOCK(mode));
2996 result = osd_mkfile(info, obj, mode, hint, th);
2998 LASSERT(obj->oo_inode != NULL);
3000 * This inode should be marked dirty for i_rdev. Currently
3001 * that is done in the osd_attr_init().
3003 init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
3006 LINVRNT(osd_invariant(obj));
3010 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
3012 struct dt_allocation_hint *hint,
3013 struct dt_object_format *dof,
3016 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
3018 osd_obj_type_f result;
3034 result = osd_mk_index;
3045 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
3046 struct dt_object *parent, struct dt_object *child,
3051 ah->dah_parent = parent;
3052 ah->dah_mode = child_mode;
3054 if (parent != NULL && !dt_object_remote(parent)) {
3055 /* will help to find FID->ino at dt_insert("..") */
3056 struct osd_object *pobj = osd_dt_obj(parent);
3057 osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
3061 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
3062 struct lu_attr *attr, struct dt_object_format *dof)
3064 struct inode *inode = obj->oo_inode;
3065 __u64 valid = attr->la_valid;
3068 attr->la_valid &= ~(LA_TYPE | LA_MODE);
3070 if (dof->dof_type != DFT_NODE)
3071 attr->la_valid &= ~LA_RDEV;
3072 if ((valid & LA_ATIME) && (attr->la_atime == LTIME_S(inode->i_atime)))
3073 attr->la_valid &= ~LA_ATIME;
3074 if ((valid & LA_CTIME) && (attr->la_ctime == LTIME_S(inode->i_ctime)))
3075 attr->la_valid &= ~LA_CTIME;
3076 if ((valid & LA_MTIME) && (attr->la_mtime == LTIME_S(inode->i_mtime)))
3077 attr->la_valid &= ~LA_MTIME;
3079 result = osd_quota_transfer(inode, attr);
3083 if (attr->la_valid != 0) {
3084 result = osd_inode_setattr(info->oti_env, inode, attr);
3086 * The osd_inode_setattr() should always succeed here. The
3087 * only error that could be returned is EDQUOT when we are
3088 * trying to change the UID or GID of the inode. However, this
3089 * should not happen since quota enforcement is no longer
3090 * enabled on ldiskfs (lquota takes care of it).
3092 LASSERTF(result == 0, "%d\n", result);
3093 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3096 attr->la_valid = valid;
3100 * Helper function for osd_create()
3102 * \retval 0, on success
3104 static int __osd_create(struct osd_thread_info *info, struct osd_object *obj,
3105 struct lu_attr *attr, struct dt_allocation_hint *hint,
3106 struct dt_object_format *dof, struct thandle *th)
3111 osd_trans_exec_op(info->oti_env, th, OSD_OT_CREATE);
3113 /* we drop umask so that permissions we pass are not affected */
3114 umask = current->fs->umask;
3115 current->fs->umask = 0;
3117 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
3119 if (likely(obj->oo_inode != NULL)) {
3120 LASSERT(obj->oo_inode->i_state & I_NEW);
3122 /* Unlock the inode before attr initialization to avoid
3123 * unnecessary dqget operations. LU-6378 */
3124 unlock_new_inode(obj->oo_inode);
3127 if (likely(result == 0)) {
3128 osd_attr_init(info, obj, attr, dof);
3129 osd_object_init0(obj);
3132 /* restore previous umask value */
3133 current->fs->umask = umask;
3135 osd_trans_exec_check(info->oti_env, th, OSD_OT_CREATE);
3141 * Helper function for osd_create()
3143 * \retval 0, on success
3145 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
3146 const struct lu_fid *fid, struct thandle *th)
3148 struct osd_thread_info *info = osd_oti_get(env);
3149 struct osd_inode_id *id = &info->oti_id;
3150 struct osd_device *osd = osd_obj2dev(obj);
3151 struct osd_thandle *oh;
3154 LASSERT(obj->oo_inode != NULL);
3156 oh = container_of0(th, struct osd_thandle, ot_super);
3157 LASSERT(oh->ot_handle);
3158 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3160 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
3161 rc = osd_oi_insert(info, osd, fid, id, oh->ot_handle,
3162 OI_CHECK_FLD, NULL);
3163 osd_trans_exec_check(env, th, OSD_OT_INSERT);
3168 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
3169 u64 seq, struct lu_seq_range *range)
3171 struct seq_server_site *ss = osd_seq_site(osd);
3173 if (fid_seq_is_idif(seq)) {
3174 fld_range_set_ost(range);
3175 range->lsr_index = idif_ost_idx(seq);
3179 if (!fid_seq_in_fldb(seq)) {
3180 fld_range_set_mdt(range);
3182 /* FIXME: If ss is NULL, it suppose not get lsr_index
3184 range->lsr_index = ss->ss_node_id;
3188 LASSERT(ss != NULL);
3189 fld_range_set_any(range);
3190 /* OSD will only do local fld lookup */
3191 return fld_local_lookup(env, ss->ss_server_fld, seq, range);
3194 static int osd_declare_create(const struct lu_env *env, struct dt_object *dt,
3195 struct lu_attr *attr,
3196 struct dt_allocation_hint *hint,
3197 struct dt_object_format *dof,
3198 struct thandle *handle)
3200 struct osd_thandle *oh;
3204 LASSERT(handle != NULL);
3206 oh = container_of0(handle, struct osd_thandle, ot_super);
3207 LASSERT(oh->ot_handle == NULL);
3209 /* EA object consumes more credits than regular object: osd_mk_index
3210 * vs. osd_mkreg: osd_mk_index will create 2 blocks for root_node and
3211 * leaf_node, could involves the block, block bitmap, groups, GDT
3212 * change for each block, so add 4 * 2 credits in that case. */
3213 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
3214 osd_dto_credits_noquota[DTO_OBJECT_CREATE] +
3215 (dof->dof_type == DFT_INDEX) ? 4 * 2 : 0);
3216 /* Reuse idle OI block may cause additional one OI block
3218 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3219 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
3224 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid,
3225 attr->la_projid, 1, oh, osd_dt_obj(dt),
3226 NULL, OSD_QID_INODE);
3230 /* will help to find FID->ino mapping at dt_insert() */
3231 rc = osd_idc_find_and_init(env, osd_obj2dev(osd_dt_obj(dt)),
3238 * Called to destroy on-disk representation of the object
3240 * Concurrency: must be locked
3242 static int osd_declare_destroy(const struct lu_env *env, struct dt_object *dt,
3245 struct osd_object *obj = osd_dt_obj(dt);
3246 struct inode *inode = obj->oo_inode;
3247 struct osd_thandle *oh;
3254 oh = container_of0(th, struct osd_thandle, ot_super);
3255 LASSERT(oh->ot_handle == NULL);
3257 osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
3258 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
3260 /* For removing agent entry */
3261 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu))
3262 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
3264 /* Recycle idle OI leaf may cause additional three OI blocks
3266 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3267 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3268 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
3269 /* one less inode */
3270 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3271 i_projid_read(inode), -1, oh, obj, NULL,
3275 /* data to be truncated */
3276 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3277 i_projid_read(inode), 0, oh, obj, NULL,
3282 /* will help to find FID->ino when this object is being
3283 * added to PENDING/ */
3284 rc = osd_idc_find_and_init(env, osd_obj2dev(obj), obj);
3289 static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
3292 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3293 struct osd_object *obj = osd_dt_obj(dt);
3294 struct inode *inode = obj->oo_inode;
3295 struct osd_device *osd = osd_obj2dev(obj);
3296 struct osd_thandle *oh;
3300 oh = container_of0(th, struct osd_thandle, ot_super);
3301 LASSERT(oh->ot_handle);
3303 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
3305 if (unlikely(fid_is_acct(fid)))
3308 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu)) {
3309 result = osd_delete_from_remote_parent(env, osd, obj, oh, true);
3311 CERROR("%s: remove agent entry "DFID": rc = %d\n",
3312 osd_name(osd), PFID(fid), result);
3315 if (S_ISDIR(inode->i_mode)) {
3316 LASSERT(osd_inode_unlinked(inode) || inode->i_nlink == 1 ||
3317 inode->i_nlink == 2);
3319 spin_lock(&obj->oo_guard);
3321 spin_unlock(&obj->oo_guard);
3322 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3325 osd_trans_exec_op(env, th, OSD_OT_DESTROY);
3327 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
3329 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3330 result = osd_oi_delete(osd_oti_get(env), osd, fid,
3331 oh->ot_handle, OI_CHECK_FLD);
3333 osd_trans_exec_check(env, th, OSD_OT_DESTROY);
3334 /* XXX: add to ext3 orphan list */
3335 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
3337 /* not needed in the cache anymore */
3338 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
3339 obj->oo_destroyed = 1;
3345 * Put the fid into lustre_mdt_attrs, and then place the structure
3346 * inode's ea. This fid should not be altered during the life time
3349 * \retval +ve, on success
3350 * \retval -ve, on error
3352 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
3354 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
3355 const struct lu_fid *fid, __u32 compat, __u32 incompat)
3357 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
3358 struct lustre_mdt_attrs *lma = &loa->loa_lma;
3362 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INLMA))
3365 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_OST_EA_FID_SET))
3368 lustre_loa_init(loa, fid, compat, incompat);
3369 lustre_loa_swab(loa, false);
3371 /* For the OST device with 256 bytes inode size by default,
3372 * the PFID EA will be stored together with LMA EA to avoid
3373 * performance trouble. Otherwise the PFID EA can be stored
3374 * independently. LU-8998 */
3375 if ((compat & LMAC_FID_ON_OST) &&
3376 LDISKFS_INODE_SIZE(inode->i_sb) <= 256)
3377 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3378 sizeof(*loa), XATTR_CREATE);
3380 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3381 sizeof(*lma), XATTR_CREATE);
3382 /* LMA may already exist, but we need to check that all the
3383 * desired compat/incompat flags have been added. */
3384 if (unlikely(rc == -EEXIST)) {
3385 rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
3386 XATTR_NAME_LMA, (void *)loa, sizeof(*loa));
3390 if (rc < sizeof(*lma))
3393 lustre_loa_swab(loa, true);
3394 if (lu_fid_eq(fid, &lma->lma_self_fid) &&
3395 ((compat == 0 && incompat == 0) ||
3396 (!(~lma->lma_compat & compat) &&
3397 !(~lma->lma_incompat & incompat))))
3400 lma->lma_self_fid = *fid;
3401 lma->lma_compat |= compat;
3402 lma->lma_incompat |= incompat;
3403 if (rc == sizeof(*lma)) {
3404 lustre_lma_swab(lma);
3405 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3406 sizeof(*lma), XATTR_REPLACE);
3408 lustre_loa_swab(loa, false);
3409 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3410 sizeof(*loa), XATTR_REPLACE);
3418 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
3419 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
3420 * To have compatilibility with 1.8 ldiskfs driver we need to have
3421 * magic number at start of fid data.
3422 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
3425 static void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
3426 const struct lu_fid *fid)
3428 if (!fid_is_namespace_visible(fid) ||
3429 OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
3430 param->edp_magic = 0;
3434 param->edp_magic = LDISKFS_LUFID_MAGIC;
3435 param->edp_len = sizeof(struct lu_fid) + 1;
3436 fid_cpu_to_be((struct lu_fid *)param->edp_data, (struct lu_fid *)fid);
3440 * Try to read the fid from inode ea into dt_rec.
3442 * \param fid object fid.
3444 * \retval 0 on success
3446 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
3447 __u32 ino, struct lu_fid *fid,
3448 struct osd_inode_id *id)
3450 struct osd_thread_info *info = osd_oti_get(env);
3451 struct inode *inode;
3454 osd_id_gen(id, ino, OSD_OII_NOGEN);
3455 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
3457 RETURN(PTR_ERR(inode));
3463 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
3465 struct inode *parent_dir,
3466 const struct lu_fid *dot_fid,
3467 const struct lu_fid *dot_dot_fid,
3468 struct osd_thandle *oth)
3470 struct ldiskfs_dentry_param *dot_ldp;
3471 struct ldiskfs_dentry_param *dot_dot_ldp;
3472 __u32 saved_nlink = dir->i_nlink;
3475 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
3476 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
3478 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3479 dot_ldp->edp_magic = 0;
3481 rc = ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
3482 dir, dot_ldp, dot_dot_ldp);
3483 /* The ldiskfs_add_dot_dotdot() may dir->i_nlink as 2, then
3484 * the subseqent ref_add() will increase the dir->i_nlink
3485 * as 3. That is incorrect for new created directory.
3487 * It looks like hack, because we want to make the OSD API
3488 * to be order-independent for new created directory object
3489 * between dt_insert(..) and ref_add() operations.
3491 * Here, we only restore the in-RAM dir-inode's nlink attr,
3492 * becuase if the nlink attr is not 2, then there will be
3493 * ref_add() called following the dt_insert(..), such call
3494 * will make both the in-RAM and on-disk dir-inode's nlink
3495 * attr to be set as 2. LU-7447 */
3496 set_nlink(dir, saved_nlink);
3501 * Create an local agent inode for remote entry
3503 static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
3504 struct osd_device *osd,
3505 struct osd_object *pobj,
3506 const struct lu_fid *fid,
3510 struct osd_thread_info *info = osd_oti_get(env);
3511 struct inode *local;
3512 struct osd_thandle *oh;
3517 oh = container_of(th, struct osd_thandle, ot_super);
3518 LASSERT(oh->ot_handle->h_transaction != NULL);
3520 local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, type);
3521 if (IS_ERR(local)) {
3522 CERROR("%s: create local error %d\n", osd_name(osd),
3523 (int)PTR_ERR(local));
3527 /* restore i_gid in case S_ISGID is set, we will inherit S_ISGID and set
3528 * correct gid on remote file, not agent here */
3529 local->i_gid = current_fsgid();
3530 ldiskfs_set_inode_state(local, LDISKFS_STATE_LUSTRE_NOSCRUB);
3531 unlock_new_inode(local);
3533 /* Agent inode should not have project ID */
3534 #ifdef HAVE_PROJECT_QUOTA
3535 if (LDISKFS_I(pobj->oo_inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
3536 i_projid_read(pobj->oo_inode) != 0) {
3537 rc = ldiskfs_transfer_project(local, 0);
3539 CERROR("%s: quota transfer failed: rc = %d. Is project "
3540 "quota enforcement enabled on the ldiskfs "
3541 "filesystem?\n", local->i_sb->s_id, rc);
3542 RETURN(ERR_PTR(rc));
3546 /* Set special LMA flag for local agent inode */
3547 rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
3549 CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
3550 osd_name(osd), PFID(fid), rc);
3551 RETURN(ERR_PTR(rc));
3557 rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
3558 lu_object_fid(&pobj->oo_dt.do_lu),
3561 CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
3562 osd_name(osd), PFID(fid), rc);
3563 RETURN(ERR_PTR(rc));
3570 * when direntry is deleted, we have to take care of possible agent inode
3571 * referenced by that. unfortunately we can't do this at that point:
3572 * iget() within a running transaction leads to deadlock and we better do
3573 * not call that every delete declaration to save performance. so we put
3574 * a potention agent inode on a list and process that once the transaction
3575 * is over. Notice it's not any worse in terms of real orphans as regular
3576 * object destroy doesn't put inodes on the on-disk orphan list. this should
3577 * be addressed separately
3579 static int osd_schedule_agent_inode_removal(const struct lu_env *env,
3580 struct osd_thandle *oh,
3583 struct osd_device *osd = osd_dt_dev(oh->ot_super.th_dev);
3584 struct osd_obj_orphan *oor;
3591 oor->oor_env = (struct lu_env *)env;
3592 spin_lock(&osd->od_osfs_lock);
3593 list_add(&oor->oor_list, &osd->od_orphan_list);
3594 spin_unlock(&osd->od_osfs_lock);
3596 oh->ot_remove_agents = 1;
3602 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
3603 struct osd_device *osd)
3605 struct osd_thread_info *info = osd_oti_get(env);
3606 struct osd_obj_orphan *oor, *tmp;
3607 struct osd_inode_id id;
3608 struct list_head list;
3609 struct inode *inode;
3614 INIT_LIST_HEAD(&list);
3616 spin_lock(&osd->od_osfs_lock);
3617 list_for_each_entry_safe(oor, tmp, &osd->od_orphan_list, oor_list) {
3618 if (oor->oor_env == env) {
3619 list_del(&oor->oor_list);
3620 list_add(&oor->oor_list, &list);
3623 spin_unlock(&osd->od_osfs_lock);
3625 list_for_each_entry_safe(oor, tmp, &list, oor_list) {
3629 list_del(&oor->oor_list);
3632 osd_id_gen(&id, ino, OSD_OII_NOGEN);
3633 inode = osd_iget_fid(info, osd, &id, &fid);
3637 if (!osd_remote_fid(env, osd, &fid)) {
3642 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC, 1);
3644 mark_inode_dirty(inode);
3645 ldiskfs_journal_stop(jh);
3653 * OSD layer object create function for OST objects (b=11826).
3655 * The FID is inserted into inode xattr here.
3657 * \retval 0, on success
3658 * \retval -ve, on error
3660 static int osd_create(const struct lu_env *env, struct dt_object *dt,
3661 struct lu_attr *attr, struct dt_allocation_hint *hint,
3662 struct dt_object_format *dof, struct thandle *th)
3664 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3665 struct osd_object *obj = osd_dt_obj(dt);
3666 struct osd_thread_info *info = osd_oti_get(env);
3667 int result, on_ost = 0;
3671 if (dt_object_exists(dt))
3674 LINVRNT(osd_invariant(obj));
3675 LASSERT(!dt_object_remote(dt));
3676 LASSERT(osd_is_write_locked(env, obj));
3677 LASSERT(th != NULL);
3679 if (unlikely(fid_is_acct(fid)))
3680 /* Quota files can't be created from the kernel any more,
3681 * 'tune2fs -O quota' will take care of creating them */
3684 result = __osd_create(info, obj, attr, hint, dof, th);
3686 if (fid_is_idif(fid) &&
3687 !osd_dev(dt->do_lu.lo_dev)->od_index_in_idif) {
3688 struct lu_fid *tfid = &info->oti_fid;
3689 struct ost_id *oi = &info->oti_ostid;
3691 fid_to_ostid(fid, oi);
3692 ostid_to_fid(tfid, oi, 0);
3694 result = osd_ea_fid_set(info, obj->oo_inode, tfid,
3695 LMAC_FID_ON_OST, 0);
3697 on_ost = fid_is_on_ost(info, osd_obj2dev(obj),
3699 result = osd_ea_fid_set(info, obj->oo_inode, fid,
3700 on_ost ? LMAC_FID_ON_OST : 0,
3703 if (obj->oo_dt.do_body_ops == &osd_body_ops_new)
3704 obj->oo_dt.do_body_ops = &osd_body_ops;
3707 if (!result && !CFS_FAIL_CHECK(OBD_FAIL_OSD_NO_OI_ENTRY))
3708 result = __osd_oi_insert(env, obj, fid, th);
3710 /* a small optimization - dt_insert() isn't usually applied
3711 * to OST objects, so we don't need to cache OI mapping for
3713 if (result == 0 && on_ost == 0) {
3714 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3715 result = osd_idc_find_and_init(env, osd, obj);
3716 LASSERT(result == 0);
3719 LASSERT(ergo(result == 0,
3720 dt_object_exists(dt) && !dt_object_remote(dt)));
3721 LINVRNT(osd_invariant(obj));
3725 static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
3726 struct thandle *handle)
3728 struct osd_thandle *oh;
3730 /* it's possible that object doesn't exist yet */
3731 LASSERT(handle != NULL);
3733 oh = container_of0(handle, struct osd_thandle, ot_super);
3734 LASSERT(oh->ot_handle == NULL);
3736 osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
3737 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
3739 osd_idc_find_and_init(env, osd_dev(dt->do_lu.lo_dev), osd_dt_obj(dt));
3745 * Concurrency: @dt is write locked.
3747 static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
3750 struct osd_object *obj = osd_dt_obj(dt);
3751 struct inode *inode = obj->oo_inode;
3752 struct osd_thandle *oh;
3755 if (!dt_object_exists(dt) || obj->oo_destroyed)
3758 LINVRNT(osd_invariant(obj));
3759 LASSERT(!dt_object_remote(dt));
3760 LASSERT(osd_is_write_locked(env, obj));
3761 LASSERT(th != NULL);
3763 oh = container_of0(th, struct osd_thandle, ot_super);
3764 LASSERT(oh->ot_handle != NULL);
3766 osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
3768 CDEBUG(D_INODE, DFID" increase nlink %d\n",
3769 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
3771 * The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
3772 * (65000) subdirectories by storing "1" in i_nlink if the link count
3773 * would otherwise overflow. Directory tranversal tools understand
3774 * that (st_nlink == 1) indicates that the filesystem dose not track
3775 * hard links count on the directory, and will not abort subdirectory
3776 * scanning early once (st_nlink - 2) subdirs have been found.
3778 * This also has to properly handle the case of inodes with nlink == 0
3779 * in case they are being linked into the PENDING directory
3781 spin_lock(&obj->oo_guard);
3782 if (unlikely(inode->i_nlink == 0))
3783 /* inc_nlink from 0 may cause WARN_ON */
3784 set_nlink(inode, 1);
3786 ldiskfs_inc_count(oh->ot_handle, inode);
3787 if (!S_ISDIR(inode->i_mode))
3788 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
3790 spin_unlock(&obj->oo_guard);
3792 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3793 LINVRNT(osd_invariant(obj));
3795 osd_trans_exec_check(env, th, OSD_OT_REF_ADD);
3800 static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
3801 struct thandle *handle)
3803 struct osd_thandle *oh;
3805 if (!dt_object_exists(dt))
3808 LASSERT(!dt_object_remote(dt));
3809 LASSERT(handle != NULL);
3811 oh = container_of0(handle, struct osd_thandle, ot_super);
3812 LASSERT(oh->ot_handle == NULL);
3814 osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
3815 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
3821 * Concurrency: @dt is write locked.
3823 static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
3826 struct osd_object *obj = osd_dt_obj(dt);
3827 struct inode *inode = obj->oo_inode;
3828 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3829 struct osd_thandle *oh;
3831 if (!dt_object_exists(dt))
3834 LINVRNT(osd_invariant(obj));
3835 LASSERT(!dt_object_remote(dt));
3836 LASSERT(osd_is_write_locked(env, obj));
3837 LASSERT(th != NULL);
3839 oh = container_of0(th, struct osd_thandle, ot_super);
3840 LASSERT(oh->ot_handle != NULL);
3842 osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
3844 spin_lock(&obj->oo_guard);
3845 /* That can be result of upgrade from old Lustre version and
3846 * applied only to local files. Just skip this ref_del call.
3847 * ext4_unlink() only treats this as a warning, don't LASSERT here.*/
3848 if (inode->i_nlink == 0) {
3849 CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
3850 D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
3851 ", maybe an upgraded file? (LU-3915)\n",
3852 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
3853 spin_unlock(&obj->oo_guard);
3857 CDEBUG(D_INODE, DFID" decrease nlink %d\n",
3858 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
3860 ldiskfs_dec_count(oh->ot_handle, inode);
3861 spin_unlock(&obj->oo_guard);
3863 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3864 LINVRNT(osd_invariant(obj));
3866 osd_trans_exec_check(env, th, OSD_OT_REF_DEL);
3872 * Concurrency: @dt is read locked.
3874 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
3875 struct lu_buf *buf, const char *name)
3877 struct osd_object *obj = osd_dt_obj(dt);
3878 struct inode *inode = obj->oo_inode;
3879 struct osd_thread_info *info = osd_oti_get(env);
3880 struct dentry *dentry = &info->oti_obj_dentry;
3881 bool cache_xattr = false;
3886 /* version get is not real XATTR but uses xattr API */
3887 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
3888 dt_obj_version_t *ver = buf->lb_buf;
3890 /* for version we are just using xattr API but change inode
3892 if (buf->lb_len == 0)
3893 return sizeof(dt_obj_version_t);
3895 if (buf->lb_len < sizeof(dt_obj_version_t))
3898 CDEBUG(D_INODE, "Get version %#llx for inode %lu\n",
3899 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
3901 *ver = LDISKFS_I(inode)->i_fs_version;
3903 return sizeof(dt_obj_version_t);
3906 if (!dt_object_exists(dt))
3909 LASSERT(!dt_object_remote(dt));
3910 LASSERT(inode->i_op != NULL);
3911 #ifdef HAVE_IOP_XATTR
3912 LASSERT(inode->i_op->getxattr != NULL);
3915 if (strcmp(name, XATTR_NAME_LOV) == 0 ||
3916 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0)
3920 rc = osd_oxc_get(obj, name, buf);
3925 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
3926 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
3927 struct lustre_mdt_attrs *lma = &loa->loa_lma;
3928 struct filter_fid *ff;
3929 struct ost_layout *ol;
3931 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
3935 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
3938 if (buf->lb_len == 0 || !buf->lb_buf)
3941 if (buf->lb_len < rc)
3945 ol = &ff->ff_layout;
3946 ol->ol_stripe_count = cpu_to_le32(loa->loa_parent_fid.f_ver >>
3947 PFID_STRIPE_IDX_BITS);
3948 ol->ol_stripe_size = cpu_to_le32(loa->loa_stripe_size);
3949 loa->loa_parent_fid.f_ver &= PFID_STRIPE_COUNT_MASK;
3950 fid_cpu_to_le(&ff->ff_parent, &loa->loa_parent_fid);
3951 if (lma->lma_compat & LMAC_COMP_INFO) {
3952 ol->ol_comp_start = cpu_to_le64(loa->loa_comp_start);
3953 ol->ol_comp_end = cpu_to_le64(loa->loa_comp_end);
3954 ol->ol_comp_id = cpu_to_le32(loa->loa_comp_id);
3956 ol->ol_comp_start = 0;
3957 ol->ol_comp_end = 0;
3961 rc = __osd_xattr_get(inode, dentry, name,
3962 buf->lb_buf, buf->lb_len);
3966 if (rc == -ENOENT || rc == -ENODATA)
3967 osd_oxc_add(obj, name, NULL, 0);
3968 else if (rc > 0 && buf->lb_buf != NULL)
3969 osd_oxc_add(obj, name, buf->lb_buf, rc);
3975 static int osd_declare_xattr_set(const struct lu_env *env,
3976 struct dt_object *dt,
3977 const struct lu_buf *buf, const char *name,
3978 int fl, struct thandle *handle)
3980 struct osd_thandle *oh;
3982 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
3984 LASSERT(handle != NULL);
3986 oh = container_of0(handle, struct osd_thandle, ot_super);
3987 LASSERT(oh->ot_handle == NULL);
3989 if (strcmp(name, XATTR_NAME_LMA) == 0) {
3990 /* For non-upgrading case, the LMA is set first and
3991 * usually fit inode. But for upgrade case, the LMA
3992 * may be in another separated EA block. */
3993 if (dt_object_exists(dt)) {
3994 if (fl == LU_XATTR_REPLACE)
3999 } else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4001 } else if (strcmp(name, XATTR_NAME_FID) == 0) {
4002 /* We may need to delete the old PFID EA. */
4003 credits = LDISKFS_MAXQUOTAS_DEL_BLOCKS(sb);
4004 if (fl == LU_XATTR_REPLACE)
4009 /* If some name entry resides on remote MDT, then will create
4010 * agent entry under remote parent. On the other hand, if the
4011 * remote entry will be removed, then related agent entry may
4012 * need to be removed from the remote parent. So there may be
4013 * kinds of cases, let's declare enough credits. The credits
4014 * for create agent entry is enough for remove case. */
4015 if (strcmp(name, XATTR_NAME_LINK) == 0) {
4016 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
4017 if (dt_object_exists(dt))
4018 credits += 1; /* For updating LMA */
4022 credits += osd_dto_credits_noquota[DTO_XATTR_SET];
4027 if (buf->lb_buf == NULL && dt_object_exists(dt)) {
4028 /* learn xattr size from osd_xattr_get if
4029 attribute has not been read yet */
4030 buflen = __osd_xattr_get(
4031 osd_dt_obj(dt)->oo_inode,
4032 &osd_oti_get(env)->oti_obj_dentry,
4037 buflen = buf->lb_len;
4040 if (buflen > sb->s_blocksize) {
4041 credits += osd_calc_bkmap_credits(
4043 (buflen + sb->s_blocksize - 1) >>
4044 sb->s_blocksize_bits);
4048 * xattr set may involve inode quota change, reserve credits for
4049 * dquot_initialize()
4051 credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4054 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
4059 static int osd_xattr_set_pfid(const struct lu_env *env, struct osd_object *obj,
4060 const struct lu_buf *buf, int fl,
4061 struct thandle *handle)
4063 struct osd_thread_info *info = osd_oti_get(env);
4064 struct dentry *dentry = &info->oti_obj_dentry;
4065 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4066 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4067 struct inode *inode = obj->oo_inode;
4068 struct filter_fid *ff = buf->lb_buf;
4069 struct ost_layout *ol = &ff->ff_layout;
4070 int flags = XATTR_REPLACE;
4074 if (buf->lb_len != sizeof(*ff) && buf->lb_len != sizeof(struct lu_fid))
4077 rc = osd_get_lma(info, inode, dentry, loa);
4078 if (rc == -ENODATA) {
4079 /* Usually for upgarding from old device */
4080 lustre_loa_init(loa, lu_object_fid(&obj->oo_dt.do_lu),
4081 LMAC_FID_ON_OST, 0);
4082 flags = XATTR_CREATE;
4087 if (!rc && lma->lma_compat & LMAC_STRIPE_INFO) {
4088 if ((fl & LU_XATTR_CREATE) && !(fl & LU_XATTR_REPLACE))
4091 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256) {
4092 /* Separate PFID EA from LMA */
4093 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4094 lustre_lma_swab(lma);
4095 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4096 sizeof(*lma), XATTR_REPLACE);
4098 obj->oo_pfid_in_lma = 0;
4099 rc = LU_XATTR_CREATE;
4105 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256)
4108 /* Old client does not send stripe information,
4109 * then store the PFID EA on disk separatedly. */
4110 if (unlikely(buf->lb_len == sizeof(struct lu_fid) ||
4111 ol->ol_stripe_size == 0))
4114 /* Remove old PFID EA entry firstly. */
4115 ll_vfs_dq_init(inode);
4116 rc = osd_removexattr(dentry, inode, XATTR_NAME_FID);
4117 if (rc == -ENODATA) {
4118 if ((fl & LU_XATTR_REPLACE) && !(fl & LU_XATTR_CREATE))
4125 fid_le_to_cpu(&loa->loa_parent_fid, &ff->ff_parent);
4126 if (likely(ol->ol_stripe_size != 0)) {
4127 loa->loa_parent_fid.f_ver |= le32_to_cpu(ol->ol_stripe_count) <<
4128 PFID_STRIPE_IDX_BITS;
4129 loa->loa_stripe_size = le32_to_cpu(ol->ol_stripe_size);
4130 lma->lma_compat |= LMAC_STRIPE_INFO;
4131 if (ol->ol_comp_id != 0) {
4132 loa->loa_comp_id = le32_to_cpu(ol->ol_comp_id);
4133 loa->loa_comp_start = le64_to_cpu(ol->ol_comp_start);
4134 loa->loa_comp_end = le64_to_cpu(ol->ol_comp_end);
4135 lma->lma_compat |= LMAC_COMP_INFO;
4139 lustre_loa_swab(loa, false);
4141 /* Store the PFID EA inside LMA. */
4142 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa, sizeof(*loa),
4145 obj->oo_pfid_in_lma = 1;
4151 * In DNE environment, the object (in spite of regular file or directory)
4152 * and its name entry may reside on different MDTs. Under such case, we will
4153 * create an agent entry on the MDT where the object resides. The agent entry
4154 * references the object locally, that makes the object to be visible to the
4155 * userspace when mounted as 'ldiskfs' directly. Then the userspace tools,
4156 * such as 'tar' can handle the object properly.
4158 * We handle the agent entry during set linkEA that is the common interface
4159 * for both regular file and directroy, can handle kinds of cases, such as
4160 * create/link/unlink/rename, and so on.
4162 * NOTE: we can NOT do that when ea_{insert,delete} that is only for directory.
4164 * XXX: There are two known issues:
4165 * 1. For one object, we will create at most one agent entry even if there
4166 * may be more than one cross-MDTs hard links on the object. So the local
4167 * e2fsck may claim that the object's nlink is larger than the name entries
4168 * that reference such inode. And in further, the e2fsck will fix the nlink
4169 * attribute to match the local references. Then it will cause the object's
4170 * nlink attribute to be inconsistent with the global references. it is bad
4171 * but not fatal. The ref_del() can handle the zero-referenced case. On the
4172 * other hand, the global namespace LFSCK can repair the object's attribute
4173 * according to the linkEA.
4174 * 2. There may be too many hard links on the object as to its linkEA overflow,
4175 * then the linkEA entry for cross-MDTs reference may be discarded. If such
4176 * case happened, then at this point, we do not know whether there are some
4177 * cross-MDTs reference. But there are local references, it guarantees that
4178 * object is visible to userspace when mounted as 'ldiskfs'. That is enough.
4180 static int osd_xattr_handle_linkea(const struct lu_env *env,
4181 struct osd_device *osd,
4182 struct osd_object *obj,
4183 const struct lu_buf *buf,
4184 struct thandle *handle)
4186 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
4187 struct lu_fid *tfid = &osd_oti_get(env)->oti_fid3;
4188 struct linkea_data ldata = { .ld_buf = (struct lu_buf *)buf };
4189 struct lu_name tmpname;
4190 struct osd_thandle *oh;
4192 bool remote = false;
4195 oh = container_of0(handle, struct osd_thandle, ot_super);
4196 LASSERT(oh->ot_handle != NULL);
4198 rc = linkea_init_with_rec(&ldata);
4200 linkea_first_entry(&ldata);
4201 while (ldata.ld_lee != NULL && !remote) {
4202 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen,
4204 if (osd_remote_fid(env, osd, tfid) > 0)
4207 linkea_next_entry(&ldata);
4209 } else if (rc == -ENODATA) {
4215 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu) && !remote) {
4216 rc = osd_delete_from_remote_parent(env, osd, obj, oh, false);
4218 CERROR("%s: failed to remove agent entry for "DFID
4219 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4220 } else if (!lu_object_has_agent_entry(&obj->oo_dt.do_lu) && remote) {
4221 rc = osd_add_to_remote_parent(env, osd, obj, oh);
4223 CERROR("%s: failed to create agent entry for "DFID
4224 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4231 * Concurrency: @dt is write locked.
4233 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
4234 const struct lu_buf *buf, const char *name, int fl,
4235 struct thandle *handle)
4237 struct osd_object *obj = osd_dt_obj(dt);
4238 struct osd_device *osd = osd_obj2dev(obj);
4239 struct inode *inode = obj->oo_inode;
4240 struct osd_thread_info *info = osd_oti_get(env);
4249 /* version set is not real XATTR */
4250 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4251 dt_obj_version_t *version = buf->lb_buf;
4253 /* for version we are just using xattr API but change inode
4255 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
4257 CDEBUG(D_INODE, "Set version %#llx (old %#llx) for inode %lu\n",
4258 *version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
4260 LDISKFS_I(inode)->i_fs_version = *version;
4261 /* Version is set after all inode operations are finished,
4262 * so we should mark it dirty here */
4263 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4268 CDEBUG(D_INODE, DFID" set xattr '%s' with size %zu\n",
4269 PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
4272 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4274 /* For the OST device with 256 bytes inode size by default,
4275 * the PFID EA will be stored together with LMA EA to avoid
4276 * performance trouble. Otherwise the PFID EA can be stored
4277 * independently. LU-8998 */
4278 if (strcmp(name, XATTR_NAME_FID) == 0 && osd->od_is_ost &&
4279 (LDISKFS_INODE_SIZE(inode->i_sb) <= 256 || obj->oo_pfid_in_lma)) {
4280 LASSERT(buf->lb_buf);
4282 fl = osd_xattr_set_pfid(env, obj, buf, fl, handle);
4285 } else if (strcmp(name, XATTR_NAME_LMV) == 0) {
4286 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4287 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4289 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4293 lma->lma_incompat |= LMAI_STRIPED;
4294 lustre_lma_swab(lma);
4295 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4296 sizeof(*lma), XATTR_REPLACE);
4299 } else if (strcmp(name, XATTR_NAME_LINK) == 0) {
4300 LASSERT(!osd->od_is_ost);
4302 rc = osd_xattr_handle_linkea(env, osd, obj, buf, handle);
4307 if (fl & LU_XATTR_REPLACE)
4308 fs_flags |= XATTR_REPLACE;
4310 if (fl & LU_XATTR_CREATE)
4311 fs_flags |= XATTR_CREATE;
4313 rc = __osd_xattr_set(info, inode, name, buf->lb_buf, len, fs_flags);
4314 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4317 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4318 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4319 osd_oxc_add(obj, name, buf->lb_buf, buf->lb_len);
4325 * Concurrency: @dt is read locked.
4327 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
4328 const struct lu_buf *buf)
4330 struct osd_object *obj = osd_dt_obj(dt);
4331 struct inode *inode = obj->oo_inode;
4332 struct osd_thread_info *info = osd_oti_get(env);
4333 struct dentry *dentry = &info->oti_obj_dentry;
4335 if (!dt_object_exists(dt))
4338 LASSERT(!dt_object_remote(dt));
4339 LASSERT(inode->i_op != NULL);
4340 LASSERT(inode->i_op->listxattr != NULL);
4342 dentry->d_inode = inode;
4343 dentry->d_sb = inode->i_sb;
4344 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
4347 static int osd_declare_xattr_del(const struct lu_env *env,
4348 struct dt_object *dt, const char *name,
4349 struct thandle *handle)
4351 struct osd_thandle *oh;
4352 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4354 LASSERT(!dt_object_remote(dt));
4355 LASSERT(handle != NULL);
4357 oh = container_of0(handle, struct osd_thandle, ot_super);
4358 LASSERT(oh->ot_handle == NULL);
4360 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
4361 osd_dto_credits_noquota[DTO_XATTR_SET]);
4363 * xattr del may involve inode quota change, reserve credits for
4364 * dquot_initialize()
4366 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4372 * Concurrency: @dt is write locked.
4374 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
4375 const char *name, struct thandle *handle)
4377 struct osd_object *obj = osd_dt_obj(dt);
4378 struct inode *inode = obj->oo_inode;
4379 struct osd_thread_info *info = osd_oti_get(env);
4380 struct dentry *dentry = &info->oti_obj_dentry;
4383 if (!dt_object_exists(dt))
4386 LASSERT(!dt_object_remote(dt));
4387 LASSERT(inode->i_op != NULL);
4388 LASSERT(handle != NULL);
4389 #ifdef HAVE_IOP_XATTR
4390 LASSERT(inode->i_op->removexattr != NULL);
4393 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4395 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
4396 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
4398 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
4399 &info->oti_ost_attrs);
4401 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
4403 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4404 lustre_lma_swab(lma);
4405 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4406 sizeof(*lma), XATTR_REPLACE);
4408 obj->oo_pfid_in_lma = 0;
4411 ll_vfs_dq_init(inode);
4412 dentry->d_inode = inode;
4413 dentry->d_sb = inode->i_sb;
4414 rc = osd_removexattr(dentry, inode, name);
4417 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4420 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4421 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4422 osd_oxc_del(obj, name);
4427 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
4428 __u64 start, __u64 end)
4430 struct osd_object *obj = osd_dt_obj(dt);
4431 struct inode *inode = obj->oo_inode;
4432 struct osd_thread_info *info = osd_oti_get(env);
4433 struct dentry *dentry = &info->oti_obj_dentry;
4434 struct file *file = &info->oti_file;
4439 dentry->d_inode = inode;
4440 dentry->d_sb = inode->i_sb;
4441 file->f_path.dentry = dentry;
4442 file->f_mapping = inode->i_mapping;
4443 file->f_op = inode->i_fop;
4444 set_file_inode(file, inode);
4446 rc = ll_vfs_fsync_range(file, start, end, 0);
4451 static int osd_invalidate(const struct lu_env *env, struct dt_object *dt)
4460 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
4461 const struct dt_index_features *feat)
4463 struct iam_descr *descr;
4465 if (osd_object_is_root(o))
4466 return feat == &dt_directory_features;
4468 LASSERT(o->oo_dir != NULL);
4470 descr = o->oo_dir->od_container.ic_descr;
4471 if (feat == &dt_directory_features) {
4472 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
4478 feat->dif_keysize_min <= descr->id_key_size &&
4479 descr->id_key_size <= feat->dif_keysize_max &&
4480 feat->dif_recsize_min <= descr->id_rec_size &&
4481 descr->id_rec_size <= feat->dif_recsize_max &&
4482 !(feat->dif_flags & (DT_IND_VARKEY |
4483 DT_IND_VARREC | DT_IND_NONUNQ)) &&
4484 ergo(feat->dif_flags & DT_IND_UPDATE,
4485 1 /* XXX check that object (and file system) is
4490 static int osd_iam_container_init(const struct lu_env *env,
4491 struct osd_object *obj,
4492 struct osd_directory *dir)
4494 struct iam_container *bag = &dir->od_container;
4497 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
4501 result = iam_container_setup(bag);
4503 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
4505 iam_container_fini(bag);
4512 * Concurrency: no external locking is necessary.
4514 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
4515 const struct dt_index_features *feat)
4519 struct osd_object *obj = osd_dt_obj(dt);
4521 LINVRNT(osd_invariant(obj));
4523 if (osd_object_is_root(obj)) {
4524 dt->do_index_ops = &osd_index_ea_ops;
4526 } else if (feat == &dt_directory_features) {
4527 dt->do_index_ops = &osd_index_ea_ops;
4528 if (obj->oo_inode == NULL || S_ISDIR(obj->oo_inode->i_mode))
4533 } else if (unlikely(feat == &dt_otable_features)) {
4534 dt->do_index_ops = &osd_otable_ops;
4536 } else if (unlikely(feat == &dt_acct_features)) {
4537 dt->do_index_ops = &osd_acct_index_ops;
4540 } else if (!osd_has_index(obj)) {
4541 struct osd_directory *dir;
4542 struct osd_device *osd = osd_obj2dev(obj);
4543 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
4548 spin_lock(&obj->oo_guard);
4549 if (obj->oo_dir == NULL)
4553 * Concurrent thread allocated container data.
4556 spin_unlock(&obj->oo_guard);
4558 * Now, that we have container data, serialize its
4561 down_write(&obj->oo_ext_idx_sem);
4563 * recheck under lock.
4566 if (osd_has_index(obj)) {
4571 result = osd_iam_container_init(env, obj, obj->oo_dir);
4572 if (result || feat == &dt_lfsck_namespace_features ||
4573 feat == &dt_lfsck_layout_orphan_features ||
4574 feat == &dt_lfsck_layout_dangling_features)
4577 result = osd_index_register(osd, fid,
4578 feat->dif_keysize_max,
4579 feat->dif_recsize_max);
4581 CWARN("%s: failed to register index "
4583 osd_name(osd), PFID(fid), result);
4584 else if (result > 0)
4587 CDEBUG(D_LFSCK, "%s: index object "DFID
4588 " (%d/%d) registered\n",
4589 osd_name(osd), PFID(fid),
4590 (int)feat->dif_keysize_max,
4591 (int)feat->dif_recsize_max);
4594 up_write(&obj->oo_ext_idx_sem);
4602 if (result == 0 && skip_iam == 0) {
4603 if (!osd_iam_index_probe(env, obj, feat))
4606 LINVRNT(osd_invariant(obj));
4611 static int osd_otable_it_attr_get(const struct lu_env *env,
4612 struct dt_object *dt,
4613 struct lu_attr *attr)
4619 static const struct dt_object_operations osd_obj_ops = {
4620 .do_read_lock = osd_read_lock,
4621 .do_write_lock = osd_write_lock,
4622 .do_read_unlock = osd_read_unlock,
4623 .do_write_unlock = osd_write_unlock,
4624 .do_write_locked = osd_write_locked,
4625 .do_attr_get = osd_attr_get,
4626 .do_declare_attr_set = osd_declare_attr_set,
4627 .do_attr_set = osd_attr_set,
4628 .do_ah_init = osd_ah_init,
4629 .do_declare_create = osd_declare_create,
4630 .do_create = osd_create,
4631 .do_declare_destroy = osd_declare_destroy,
4632 .do_destroy = osd_destroy,
4633 .do_index_try = osd_index_try,
4634 .do_declare_ref_add = osd_declare_ref_add,
4635 .do_ref_add = osd_ref_add,
4636 .do_declare_ref_del = osd_declare_ref_del,
4637 .do_ref_del = osd_ref_del,
4638 .do_xattr_get = osd_xattr_get,
4639 .do_declare_xattr_set = osd_declare_xattr_set,
4640 .do_xattr_set = osd_xattr_set,
4641 .do_declare_xattr_del = osd_declare_xattr_del,
4642 .do_xattr_del = osd_xattr_del,
4643 .do_xattr_list = osd_xattr_list,
4644 .do_object_sync = osd_object_sync,
4645 .do_invalidate = osd_invalidate,
4648 static const struct dt_object_operations osd_obj_otable_it_ops = {
4649 .do_attr_get = osd_otable_it_attr_get,
4650 .do_index_try = osd_index_try,
4653 static int osd_index_declare_iam_delete(const struct lu_env *env,
4654 struct dt_object *dt,
4655 const struct dt_key *key,
4656 struct thandle *handle)
4658 struct osd_thandle *oh;
4660 oh = container_of0(handle, struct osd_thandle, ot_super);
4661 LASSERT(oh->ot_handle == NULL);
4663 /* Recycle may cause additional three blocks to be changed. */
4664 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
4665 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
4671 * delete a (key, value) pair from index \a dt specified by \a key
4673 * \param dt osd index object
4674 * \param key key for index
4675 * \param rec record reference
4676 * \param handle transaction handler
4679 * \retval -ve failure
4681 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
4682 const struct dt_key *key,
4683 struct thandle *handle)
4685 struct osd_thread_info *oti = osd_oti_get(env);
4686 struct osd_object *obj = osd_dt_obj(dt);
4687 struct osd_thandle *oh;
4688 struct iam_path_descr *ipd;
4689 struct iam_container *bag = &obj->oo_dir->od_container;
4693 if (!dt_object_exists(dt))
4696 LINVRNT(osd_invariant(obj));
4697 LASSERT(!dt_object_remote(dt));
4698 LASSERT(bag->ic_object == obj->oo_inode);
4699 LASSERT(handle != NULL);
4701 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
4703 ipd = osd_idx_ipd_get(env, bag);
4704 if (unlikely(ipd == NULL))
4707 oh = container_of0(handle, struct osd_thandle, ot_super);
4708 LASSERT(oh->ot_handle != NULL);
4709 LASSERT(oh->ot_handle->h_transaction != NULL);
4711 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
4712 /* swab quota uid/gid provided by caller */
4713 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4714 key = (const struct dt_key *)&oti->oti_quota_id;
4717 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
4718 osd_ipd_put(env, bag, ipd);
4719 LINVRNT(osd_invariant(obj));
4720 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
4724 static int osd_index_declare_ea_delete(const struct lu_env *env,
4725 struct dt_object *dt,
4726 const struct dt_key *key,
4727 struct thandle *handle)
4729 struct osd_thandle *oh;
4730 struct inode *inode;
4734 LASSERT(!dt_object_remote(dt));
4735 LASSERT(handle != NULL);
4737 oh = container_of0(handle, struct osd_thandle, ot_super);
4738 LASSERT(oh->ot_handle == NULL);
4740 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE];
4741 osd_trans_declare_op(env, oh, OSD_OT_DELETE, credits);
4743 inode = osd_dt_obj(dt)->oo_inode;
4747 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
4748 i_projid_read(inode), 0, oh, osd_dt_obj(dt),
4753 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
4756 struct osd_fid_pack *rec;
4759 if (de->file_type & LDISKFS_DIRENT_LUFID) {
4760 rec = (struct osd_fid_pack *) (de->name + de->name_len + 1);
4761 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
4762 if (rc == 0 && unlikely(!fid_is_sane((struct lu_fid *)fid)))
4768 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
4769 const struct lu_fid *fid)
4771 struct seq_server_site *ss = osd_seq_site(osd);
4774 /* FID seqs not in FLDB, must be local seq */
4775 if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
4778 /* If FLD is not being initialized yet, it only happens during the
4779 * initialization, likely during mgs initialization, and we assume
4780 * this is local FID. */
4781 if (ss == NULL || ss->ss_server_fld == NULL)
4784 /* Only check the local FLDB here */
4785 if (osd_seq_exists(env, osd, fid_seq(fid)))
4791 static void osd_take_care_of_agent(const struct lu_env *env,
4792 struct osd_device *osd,
4793 struct osd_thandle *oh,
4794 struct ldiskfs_dir_entry_2 *de)
4796 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
4797 struct osd_idmap_cache *idc;
4798 int rc, schedule = 0;
4800 LASSERT(de != NULL);
4802 rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
4803 if (likely(rc == 0)) {
4804 idc = osd_idc_find_or_init(env, osd, fid);
4805 if (IS_ERR(idc) || idc->oic_remote)
4807 } else if (rc == -ENODATA) {
4808 /* can't get FID, postpone to the end of the
4809 * transaction when iget() is safe */
4812 CERROR("%s: can't get FID: rc = %d\n", osd_name(osd), rc);
4815 osd_schedule_agent_inode_removal(env, oh,
4816 le32_to_cpu(de->inode));
4820 * Index delete function for interoperability mode (b11826).
4821 * It will remove the directory entry added by osd_index_ea_insert().
4822 * This entry is needed to maintain name->fid mapping.
4824 * \param key, key i.e. file entry to be deleted
4826 * \retval 0, on success
4827 * \retval -ve, on error
4829 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
4830 const struct dt_key *key, struct thandle *handle)
4832 struct osd_object *obj = osd_dt_obj(dt);
4833 struct inode *dir = obj->oo_inode;
4834 struct dentry *dentry;
4835 struct osd_thandle *oh;
4836 struct ldiskfs_dir_entry_2 *de = NULL;
4837 struct buffer_head *bh;
4838 struct htree_lock *hlock = NULL;
4839 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4843 if (!dt_object_exists(dt))
4846 LINVRNT(osd_invariant(obj));
4847 LASSERT(!dt_object_remote(dt));
4848 LASSERT(handle != NULL);
4850 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
4852 oh = container_of(handle, struct osd_thandle, ot_super);
4853 LASSERT(oh->ot_handle != NULL);
4854 LASSERT(oh->ot_handle->h_transaction != NULL);
4856 ll_vfs_dq_init(dir);
4857 dentry = osd_child_dentry_get(env, obj,
4858 (char *)key, strlen((char *)key));
4860 if (obj->oo_hl_head != NULL) {
4861 hlock = osd_oti_get(env)->oti_hlock;
4862 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
4863 dir, LDISKFS_HLOCK_DEL);
4865 down_write(&obj->oo_ext_idx_sem);
4868 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
4870 /* If this is not the ".." entry, it might be a remote DNE
4871 * entry and we need to check if the FID is for a remote
4872 * MDT. If the FID is not in the directory entry (e.g.
4873 * upgraded 1.8 filesystem without dirdata enabled) then
4874 * we need to get the FID from the LMA. For a remote directory
4875 * there HAS to be an LMA, it cannot be an IGIF inode in this
4878 * Delete the entry before the agent inode in order to
4879 * simplify error handling. At worst an error after deleting
4880 * the entry first might leak the agent inode afterward. The
4881 * reverse would need filesystem abort in case of error deleting
4882 * the entry after the agent had been removed, or leave a
4883 * dangling entry pointing at a random inode. */
4884 if (strcmp((char *)key, dotdot) != 0)
4885 osd_take_care_of_agent(env, osd, oh, de);
4886 rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
4892 ldiskfs_htree_unlock(hlock);
4894 up_write(&obj->oo_ext_idx_sem);
4899 LASSERT(osd_invariant(obj));
4900 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
4905 * Lookup index for \a key and copy record to \a rec.
4907 * \param dt osd index object
4908 * \param key key for index
4909 * \param rec record reference
4911 * \retval +ve success : exact mach
4912 * \retval 0 return record with key not greater than \a key
4913 * \retval -ve failure
4915 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
4916 struct dt_rec *rec, const struct dt_key *key)
4918 struct osd_object *obj = osd_dt_obj(dt);
4919 struct iam_path_descr *ipd;
4920 struct iam_container *bag = &obj->oo_dir->od_container;
4921 struct osd_thread_info *oti = osd_oti_get(env);
4922 struct iam_iterator *it = &oti->oti_idx_it;
4923 struct iam_rec *iam_rec;
4927 if (!dt_object_exists(dt))
4930 LASSERT(osd_invariant(obj));
4931 LASSERT(!dt_object_remote(dt));
4932 LASSERT(bag->ic_object == obj->oo_inode);
4934 ipd = osd_idx_ipd_get(env, bag);
4938 /* got ipd now we can start iterator. */
4939 iam_it_init(it, bag, 0, ipd);
4941 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
4942 /* swab quota uid/gid provided by caller */
4943 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4944 key = (const struct dt_key *)&oti->oti_quota_id;
4947 rc = iam_it_get(it, (struct iam_key *)key);
4949 if (S_ISDIR(obj->oo_inode->i_mode))
4950 iam_rec = (struct iam_rec *)oti->oti_ldp;
4952 iam_rec = (struct iam_rec *) rec;
4954 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
4956 if (S_ISDIR(obj->oo_inode->i_mode))
4957 osd_fid_unpack((struct lu_fid *) rec,
4958 (struct osd_fid_pack *)iam_rec);
4959 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
4960 osd_quota_unpack(obj, rec);
4965 osd_ipd_put(env, bag, ipd);
4967 LINVRNT(osd_invariant(obj));
4972 static int osd_index_declare_iam_insert(const struct lu_env *env,
4973 struct dt_object *dt,
4974 const struct dt_rec *rec,
4975 const struct dt_key *key,
4976 struct thandle *handle)
4978 struct osd_thandle *oh;
4980 LASSERT(handle != NULL);
4982 oh = container_of0(handle, struct osd_thandle, ot_super);
4983 LASSERT(oh->ot_handle == NULL);
4985 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4986 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
4992 * Inserts (key, value) pair in \a dt index object.
4994 * \param dt osd index object
4995 * \param key key for index
4996 * \param rec record reference
4997 * \param th transaction handler
5000 * \retval -ve failure
5002 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
5003 const struct dt_rec *rec,
5004 const struct dt_key *key, struct thandle *th,
5007 struct osd_object *obj = osd_dt_obj(dt);
5008 struct iam_path_descr *ipd;
5009 struct osd_thandle *oh;
5010 struct iam_container *bag;
5011 struct osd_thread_info *oti = osd_oti_get(env);
5012 struct iam_rec *iam_rec;
5016 if (!dt_object_exists(dt))
5019 LINVRNT(osd_invariant(obj));
5020 LASSERT(!dt_object_remote(dt));
5022 bag = &obj->oo_dir->od_container;
5023 LASSERT(bag->ic_object == obj->oo_inode);
5024 LASSERT(th != NULL);
5026 osd_trans_exec_op(env, th, OSD_OT_INSERT);
5028 ipd = osd_idx_ipd_get(env, bag);
5029 if (unlikely(ipd == NULL))
5032 oh = container_of0(th, struct osd_thandle, ot_super);
5033 LASSERT(oh->ot_handle != NULL);
5034 LASSERT(oh->ot_handle->h_transaction != NULL);
5035 if (S_ISDIR(obj->oo_inode->i_mode)) {
5036 iam_rec = (struct iam_rec *)oti->oti_ldp;
5037 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec, &oti->oti_fid);
5038 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5039 /* pack quota uid/gid */
5040 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5041 key = (const struct dt_key *)&oti->oti_quota_id;
5042 /* pack quota record */
5043 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
5044 iam_rec = (struct iam_rec *)rec;
5046 iam_rec = (struct iam_rec *)rec;
5049 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
5051 osd_ipd_put(env, bag, ipd);
5052 LINVRNT(osd_invariant(obj));
5053 osd_trans_exec_check(env, th, OSD_OT_INSERT);
5058 * Calls ldiskfs_add_entry() to add directory entry
5059 * into the directory. This is required for
5060 * interoperability mode (b11826)
5062 * \retval 0, on success
5063 * \retval -ve, on error
5065 static int __osd_ea_add_rec(struct osd_thread_info *info,
5066 struct osd_object *pobj, struct inode *cinode,
5067 const char *name, const struct lu_fid *fid,
5068 struct htree_lock *hlock, struct thandle *th)
5070 struct ldiskfs_dentry_param *ldp;
5071 struct dentry *child;
5072 struct osd_thandle *oth;
5075 oth = container_of(th, struct osd_thandle, ot_super);
5076 LASSERT(oth->ot_handle != NULL);
5077 LASSERT(oth->ot_handle->h_transaction != NULL);
5078 LASSERT(pobj->oo_inode);
5080 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
5081 if (unlikely(pobj->oo_inode ==
5082 osd_sb(osd_obj2dev(pobj))->s_root->d_inode))
5085 osd_get_ldiskfs_dirent_param(ldp, fid);
5086 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
5087 child->d_fsdata = (void *)ldp;
5088 ll_vfs_dq_init(pobj->oo_inode);
5089 rc = osd_ldiskfs_add_entry(info, osd_obj2dev(pobj), oth->ot_handle,
5090 child, cinode, hlock);
5091 if (rc == 0 && OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_TYPE)) {
5092 struct ldiskfs_dir_entry_2 *de;
5093 struct buffer_head *bh;
5096 bh = osd_ldiskfs_find_entry(pobj->oo_inode, &child->d_name, &de,
5099 rc1 = ldiskfs_journal_get_write_access(oth->ot_handle,
5102 if (S_ISDIR(cinode->i_mode))
5103 de->file_type = LDISKFS_DIRENT_LUFID |
5104 LDISKFS_FT_REG_FILE;
5106 de->file_type = LDISKFS_DIRENT_LUFID |
5108 ldiskfs_handle_dirty_metadata(oth->ot_handle,
5119 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
5120 * into the directory.Also sets flags into osd object to
5121 * indicate dot and dotdot are created. This is required for
5122 * interoperability mode (b11826)
5124 * \param dir directory for dot and dotdot fixup.
5125 * \param obj child object for linking
5127 * \retval 0, on success
5128 * \retval -ve, on error
5130 static int osd_add_dot_dotdot(struct osd_thread_info *info,
5131 struct osd_object *dir,
5132 struct inode *parent_dir, const char *name,
5133 const struct lu_fid *dot_fid,
5134 const struct lu_fid *dot_dot_fid,
5137 struct inode *inode = dir->oo_inode;
5138 struct osd_thandle *oth;
5141 oth = container_of(th, struct osd_thandle, ot_super);
5142 LASSERT(oth->ot_handle->h_transaction != NULL);
5143 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
5145 if (strcmp(name, dot) == 0) {
5146 if (dir->oo_compat_dot_created) {
5149 LASSERT(inode->i_ino == parent_dir->i_ino);
5150 dir->oo_compat_dot_created = 1;
5153 } else if (strcmp(name, dotdot) == 0) {
5154 if (!dir->oo_compat_dot_created)
5156 /* in case of rename, dotdot is already created */
5157 if (dir->oo_compat_dotdot_created) {
5158 return __osd_ea_add_rec(info, dir, parent_dir, name,
5159 dot_dot_fid, NULL, th);
5162 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_PARENT)) {
5163 struct lu_fid tfid = *dot_dot_fid;
5166 result = osd_add_dot_dotdot_internal(info,
5167 dir->oo_inode, parent_dir, dot_fid,
5170 result = osd_add_dot_dotdot_internal(info,
5171 dir->oo_inode, parent_dir, dot_fid,
5176 dir->oo_compat_dotdot_created = 1;
5184 * It will call the appropriate osd_add* function and return the
5185 * value, return by respective functions.
5187 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
5188 struct inode *cinode, const char *name,
5189 const struct lu_fid *fid, struct thandle *th)
5191 struct osd_thread_info *info = osd_oti_get(env);
5192 struct htree_lock *hlock;
5195 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
5197 if (name[0] == '.' && (name[1] == '\0' || (name[1] == '.' &&
5199 if (hlock != NULL) {
5200 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5203 down_write(&pobj->oo_ext_idx_sem);
5206 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
5207 lu_object_fid(&pobj->oo_dt.do_lu),
5210 if (hlock != NULL) {
5211 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5212 pobj->oo_inode, LDISKFS_HLOCK_ADD);
5214 down_write(&pobj->oo_ext_idx_sem);
5217 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
5218 struct lu_fid *tfid = &info->oti_fid;
5222 rc = __osd_ea_add_rec(info, pobj, cinode, name,
5225 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
5230 ldiskfs_htree_unlock(hlock);
5232 up_write(&pobj->oo_ext_idx_sem);
5238 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
5239 struct osd_idmap_cache *oic)
5241 struct lustre_scrub *scrub = &dev->od_scrub.os_scrub;
5242 struct lu_fid *fid = &oic->oic_fid;
5243 struct osd_inode_id *id = &oic->oic_lid;
5244 struct inode *inode = NULL;
5250 if (!fid_is_norm(fid) && !fid_is_igif(fid))
5253 if (thread_is_running(&scrub->os_thread) &&
5254 scrub->os_pos_current > id->oii_ino)
5257 if (dev->od_auto_scrub_interval == AS_NEVER ||
5258 ktime_get_real_seconds() <
5259 scrub->os_file.sf_time_last_complete + dev->od_auto_scrub_interval)
5263 rc = osd_oi_lookup(oti, dev, fid, &oti->oti_id, 0);
5264 if (rc == -ENOENT) {
5265 __u32 gen = id->oii_gen;
5271 inode = osd_iget(oti, dev, id);
5272 /* The inode has been removed (by race maybe). */
5273 if (IS_ERR(inode)) {
5274 rc = PTR_ERR(inode);
5276 RETURN(rc == -ESTALE ? -ENOENT : rc);
5279 /* The OI mapping is lost. */
5280 if (gen != OSD_OII_NOGEN)
5283 /* The inode may has been reused by others, we do not know,
5284 * leave it to be handled by subsequent osd_fid_lookup(). */
5286 } else if (rc || osd_id_eq(id, &oti->oti_id)) {
5293 if (thread_is_running(&scrub->os_thread)) {
5294 if (inode == NULL) {
5295 inode = osd_iget(oti, dev, id);
5296 /* The inode has been removed (by race maybe). */
5297 if (IS_ERR(inode)) {
5298 rc = PTR_ERR(inode);
5300 RETURN(rc == -ESTALE ? -ENOENT : rc);
5304 rc = osd_oii_insert(dev, oic, insert);
5305 /* There is race condition between osd_oi_lookup and OI scrub.
5306 * The OI scrub finished just after osd_oi_lookup() failure.
5307 * Under such case, it is unnecessary to trigger OI scrub again,
5308 * but try to call osd_oi_lookup() again. */
5309 if (unlikely(rc == -EAGAIN))
5312 if (!S_ISDIR(inode->i_mode))
5315 rc = osd_check_lmv(oti, dev, inode, oic);
5320 if (dev->od_auto_scrub_interval != AS_NEVER && ++once == 1) {
5321 rc = osd_scrub_start(oti->oti_env, dev, SS_AUTO_PARTIAL |
5322 SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT);
5323 CDEBUG(D_LFSCK | D_CONSOLE | D_WARNING,
5324 "%s: trigger partial OI scrub for RPC inconsistency "
5325 "checking FID "DFID": rc = %d\n",
5326 osd_dev2name(dev), PFID(fid), rc);
5327 if (rc == 0 || rc == -EALREADY)
5340 static int osd_fail_fid_lookup(struct osd_thread_info *oti,
5341 struct osd_device *dev,
5342 struct osd_idmap_cache *oic,
5343 struct lu_fid *fid, __u32 ino)
5345 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
5346 struct inode *inode;
5349 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
5350 inode = osd_iget(oti, dev, &oic->oic_lid);
5351 if (IS_ERR(inode)) {
5352 fid_zero(&oic->oic_fid);
5353 return PTR_ERR(inode);
5356 rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, loa);
5359 fid_zero(&oic->oic_fid);
5361 *fid = oic->oic_fid = loa->loa_lma.lma_self_fid;
5365 void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
5366 struct osd_inode_id *id, const struct lu_fid *fid)
5368 CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
5369 id->oii_ino, id->oii_gen, info);
5370 info->oti_cache.oic_lid = *id;
5371 info->oti_cache.oic_fid = *fid;
5372 info->oti_cache.oic_dev = osd;
5376 * Get parent FID from the linkEA.
5378 * For a directory which parent resides on remote MDT, to satisfy the
5379 * local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
5380 * the other hand, to make the lookup(..) on the directory can return
5381 * the real parent FID, we append the real parent FID after its ".."
5382 * name entry in the /REMOTE_PARENT_DIR.
5384 * Unfortunately, such PFID-in-dirent cannot be preserved via file-level
5385 * backup. So after the restore, we cannot get the right parent FID from
5386 * its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
5387 * we have stored the real parent FID in the directory object's linkEA,
5388 * we can parse the linkEA for the real parent FID.
5390 * \param[in] env pointer to the thread context
5391 * \param[in] obj pointer to the object to be handled
5392 * \param[out]fid pointer to the buffer to hold the parent FID
5394 * \retval 0 for getting the real parent FID successfully
5395 * \retval negative error number on failure
5397 static int osd_get_pfid_from_linkea(const struct lu_env *env,
5398 struct osd_object *obj,
5401 struct osd_thread_info *oti = osd_oti_get(env);
5402 struct lu_buf *buf = &oti->oti_big_buf;
5403 struct dentry *dentry = &oti->oti_obj_dentry;
5404 struct inode *inode = obj->oo_inode;
5405 struct linkea_data ldata = { NULL };
5410 if (!S_ISDIR(inode->i_mode))
5414 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5415 buf->lb_buf, buf->lb_len);
5416 if (rc == -ERANGE) {
5417 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5420 lu_buf_realloc(buf, rc);
5421 if (buf->lb_buf == NULL)
5428 if (unlikely(rc == 0))
5434 if (unlikely(buf->lb_buf == NULL)) {
5435 lu_buf_realloc(buf, rc);
5436 if (buf->lb_buf == NULL)
5443 rc = linkea_init_with_rec(&ldata);
5445 linkea_first_entry(&ldata);
5446 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
5452 static int osd_verify_ent_by_linkea(const struct lu_env *env,
5453 struct inode *inode,
5454 const struct lu_fid *pfid,
5455 const char *name, const int namelen)
5457 struct osd_thread_info *oti = osd_oti_get(env);
5458 struct lu_buf *buf = &oti->oti_big_buf;
5459 struct dentry *dentry = &oti->oti_obj_dentry;
5460 struct linkea_data ldata = { NULL };
5461 struct lu_name cname = { .ln_name = name,
5462 .ln_namelen = namelen };
5467 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5468 buf->lb_buf, buf->lb_len);
5470 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK, NULL, 0);
5475 if (unlikely(rc == 0))
5478 if (buf->lb_len < rc) {
5479 lu_buf_realloc(buf, rc);
5480 if (buf->lb_buf == NULL)
5487 rc = linkea_init_with_rec(&ldata);
5489 rc = linkea_links_find(&ldata, &cname, pfid);
5495 * Calls ->lookup() to find dentry. From dentry get inode and
5496 * read inode's ea to get fid. This is required for interoperability
5499 * \retval 0, on success
5500 * \retval -ve, on error
5502 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
5503 struct dt_rec *rec, const struct dt_key *key)
5505 struct inode *dir = obj->oo_inode;
5506 struct dentry *dentry;
5507 struct ldiskfs_dir_entry_2 *de;
5508 struct buffer_head *bh;
5509 struct lu_fid *fid = (struct lu_fid *) rec;
5510 struct htree_lock *hlock = NULL;
5515 LASSERT(dir->i_op != NULL);
5516 LASSERT(dir->i_op->lookup != NULL);
5518 dentry = osd_child_dentry_get(env, obj,
5519 (char *)key, strlen((char *)key));
5521 if (obj->oo_hl_head != NULL) {
5522 hlock = osd_oti_get(env)->oti_hlock;
5523 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5524 dir, LDISKFS_HLOCK_LOOKUP);
5526 down_read(&obj->oo_ext_idx_sem);
5529 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5531 struct osd_thread_info *oti = osd_oti_get(env);
5532 struct osd_inode_id *id = &oti->oti_id;
5533 struct osd_idmap_cache *oic = &oti->oti_cache;
5534 struct osd_device *dev = osd_obj2dev(obj);
5536 ino = le32_to_cpu(de->inode);
5537 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
5539 rc = osd_fail_fid_lookup(oti, dev, oic, fid, ino);
5543 rc = osd_get_fid_from_dentry(de, rec);
5545 /* done with de, release bh */
5548 if (unlikely(is_remote_parent_ino(dev, ino))) {
5549 const char *name = (const char *)key;
5551 /* If the parent is on remote MDT, and there
5552 * is no FID-in-dirent, then we have to get
5553 * the parent FID from the linkEA. */
5554 if (likely(strlen(name) == 2 &&
5555 name[0] == '.' && name[1] == '.'))
5556 rc = osd_get_pfid_from_linkea(env, obj,
5559 rc = osd_ea_fid_get(env, obj, ino, fid, id);
5562 osd_id_gen(id, ino, OSD_OII_NOGEN);
5565 if (rc != 0 || osd_remote_fid(env, dev, fid)) {
5566 fid_zero(&oic->oic_fid);
5571 osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id, fid);
5572 rc = osd_consistency_check(oti, dev, oic);
5574 fid_zero(&oic->oic_fid);
5576 /* Other error should not affect lookup result. */
5586 ldiskfs_htree_unlock(hlock);
5588 up_read(&obj->oo_ext_idx_sem);
5592 static int osd_index_declare_ea_insert(const struct lu_env *env,
5593 struct dt_object *dt,
5594 const struct dt_rec *rec,
5595 const struct dt_key *key,
5596 struct thandle *handle)
5598 struct osd_thandle *oh;
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 int credits, rc = 0;
5603 struct osd_idmap_cache *idc;
5606 LASSERT(!dt_object_remote(dt));
5607 LASSERT(handle != NULL);
5608 LASSERT(fid != NULL);
5609 LASSERT(rec1->rec_type != 0);
5611 oh = container_of0(handle, struct osd_thandle, ot_super);
5612 LASSERT(oh->ot_handle == NULL);
5614 credits = osd_dto_credits_noquota[DTO_INDEX_INSERT];
5616 /* we can't call iget() while a transactions is running
5617 * (this can lead to a deadlock), but we need to know
5618 * inum and object type. so we find this information at
5619 * declaration and cache in per-thread info */
5620 idc = osd_idc_find_or_init(env, osd, fid);
5622 RETURN(PTR_ERR(idc));
5623 if (idc->oic_remote) {
5624 /* a reference to remote inode is represented by an
5625 * agent inode which we have to create */
5626 credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
5627 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
5630 osd_trans_declare_op(env, oh, OSD_OT_INSERT, credits);
5632 if (osd_dt_obj(dt)->oo_inode != NULL) {
5633 struct inode *inode = osd_dt_obj(dt)->oo_inode;
5635 /* We ignore block quota on meta pool (MDTs), so needn't
5636 * calculate how many blocks will be consumed by this index
5638 rc = osd_declare_inode_qid(env, i_uid_read(inode),
5640 i_projid_read(inode), 0,
5641 oh, osd_dt_obj(dt), NULL,
5646 #ifdef HAVE_PROJECT_QUOTA
5647 /* Reserve credits for local agent inode to transfer
5648 * to 0, quota enforcement is ignored in this case.
5650 if (idc->oic_remote &&
5651 LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
5652 i_projid_read(inode) != 0)
5653 rc = osd_declare_attr_qid(env, osd_dt_obj(dt), oh,
5654 0, i_projid_read(inode),
5655 0, false, PRJQUOTA, true);
5664 * Index add function for interoperability mode (b11826).
5665 * It will add the directory entry.This entry is needed to
5666 * maintain name->fid mapping.
5668 * \param key it is key i.e. file entry to be inserted
5669 * \param rec it is value of given key i.e. fid
5671 * \retval 0, on success
5672 * \retval -ve, on error
5674 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
5675 const struct dt_rec *rec,
5676 const struct dt_key *key, struct thandle *th,
5679 struct osd_object *obj = osd_dt_obj(dt);
5680 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5681 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
5682 const struct lu_fid *fid = rec1->rec_fid;
5683 const char *name = (const char *)key;
5684 struct osd_thread_info *oti = osd_oti_get(env);
5685 struct inode *child_inode = NULL;
5686 struct osd_idmap_cache *idc;
5690 if (!dt_object_exists(dt))
5693 LASSERT(osd_invariant(obj));
5694 LASSERT(!dt_object_remote(dt));
5695 LASSERT(th != NULL);
5697 osd_trans_exec_op(env, th, OSD_OT_INSERT);
5699 LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
5701 idc = osd_idc_find(env, osd, fid);
5702 if (unlikely(idc == NULL)) {
5703 /* this dt_insert() wasn't declared properly, so
5704 * FID is missing in OI cache. we better do not
5705 * lookup FID in FLDB/OI and don't risk to deadlock,
5706 * but in some special cases (lfsck testing, etc)
5707 * it's much simpler than fixing a caller */
5708 CERROR("%s: "DFID" wasn't declared for insert\n",
5709 osd_name(osd), PFID(fid));
5711 idc = osd_idc_find_or_init(env, osd, fid);
5713 RETURN(PTR_ERR(idc));
5716 if (idc->oic_remote) {
5717 /* Insert remote entry */
5718 if (strcmp(name, dotdot) == 0 && strlen(name) == 2) {
5720 igrab(osd->od_mdt_map->omm_remote_parent->d_inode);
5722 child_inode = osd_create_local_agent_inode(env, osd,
5723 obj, fid, rec1->rec_type & S_IFMT, th);
5724 if (IS_ERR(child_inode))
5725 RETURN(PTR_ERR(child_inode));
5728 /* Insert local entry */
5729 if (unlikely(idc->oic_lid.oii_ino == 0)) {
5730 /* for a reason OI cache wasn't filled properly */
5731 CERROR("%s: OIC for "DFID" isn't filled\n",
5732 osd_name(osd), PFID(fid));
5735 child_inode = oti->oti_inode;
5736 if (unlikely(child_inode == NULL)) {
5737 struct ldiskfs_inode_info *lii;
5741 child_inode = oti->oti_inode = &lii->vfs_inode;
5743 child_inode->i_sb = osd_sb(osd);
5744 child_inode->i_ino = idc->oic_lid.oii_ino;
5745 child_inode->i_mode = rec1->rec_type & S_IFMT;
5748 rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
5750 CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
5751 obj->oo_inode->i_ino, name, child_inode->i_ino, rc);
5753 if (child_inode && child_inode != oti->oti_inode)
5755 LASSERT(osd_invariant(obj));
5756 osd_trans_exec_check(env, th, OSD_OT_INSERT);
5761 * Initialize osd Iterator for given osd index object.
5763 * \param dt osd index object
5766 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
5767 struct dt_object *dt,
5770 struct osd_it_iam *it;
5771 struct osd_object *obj = osd_dt_obj(dt);
5772 struct lu_object *lo = &dt->do_lu;
5773 struct iam_path_descr *ipd;
5774 struct iam_container *bag = &obj->oo_dir->od_container;
5776 if (!dt_object_exists(dt))
5777 return ERR_PTR(-ENOENT);
5781 return ERR_PTR(-ENOMEM);
5783 ipd = osd_it_ipd_get(env, bag);
5784 if (likely(ipd != NULL)) {
5788 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
5789 return (struct dt_it *)it;
5792 return ERR_PTR(-ENOMEM);
5797 * free given Iterator.
5799 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
5801 struct osd_it_iam *it = (struct osd_it_iam *)di;
5802 struct osd_object *obj = it->oi_obj;
5804 iam_it_fini(&it->oi_it);
5805 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
5806 osd_object_put(env, obj);
5811 * Move Iterator to record specified by \a key
5813 * \param di osd iterator
5814 * \param key key for index
5816 * \retval +ve di points to record with least key not larger than key
5817 * \retval 0 di points to exact matched key
5818 * \retval -ve failure
5821 static int osd_it_iam_get(const struct lu_env *env,
5822 struct dt_it *di, const struct dt_key *key)
5824 struct osd_thread_info *oti = osd_oti_get(env);
5825 struct osd_it_iam *it = (struct osd_it_iam *)di;
5827 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
5828 /* swab quota uid/gid */
5829 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5830 key = (struct dt_key *)&oti->oti_quota_id;
5833 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
5839 * \param di osd iterator
5841 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
5843 struct osd_it_iam *it = (struct osd_it_iam *)di;
5845 iam_it_put(&it->oi_it);
5849 * Move iterator by one record
5851 * \param di osd iterator
5853 * \retval +1 end of container reached
5855 * \retval -ve failure
5858 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
5860 struct osd_it_iam *it = (struct osd_it_iam *)di;
5862 return iam_it_next(&it->oi_it);
5866 * Return pointer to the key under iterator.
5869 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
5870 const struct dt_it *di)
5872 struct osd_thread_info *oti = osd_oti_get(env);
5873 struct osd_it_iam *it = (struct osd_it_iam *)di;
5874 struct osd_object *obj = it->oi_obj;
5877 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
5879 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
5880 /* swab quota uid/gid */
5881 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
5882 key = (struct dt_key *)&oti->oti_quota_id;
5889 * Return size of key under iterator (in bytes)
5892 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
5894 struct osd_it_iam *it = (struct osd_it_iam *)di;
5896 return iam_it_key_size(&it->oi_it);
5900 osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
5902 /* check if file type is required */
5903 if (ent->lde_attrs & LUDA_TYPE) {
5904 struct luda_type *lt;
5905 int align = sizeof(*lt) - 1;
5907 len = (len + align) & ~align;
5908 lt = (struct luda_type *)(ent->lde_name + len);
5909 lt->lt_type = cpu_to_le16(DTTOIF(type));
5912 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
5916 * build lu direct from backend fs dirent.
5920 osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
5921 char *name, __u16 namelen, __u16 type, __u32 attr)
5923 ent->lde_attrs = attr | LUDA_FID;
5924 fid_cpu_to_le(&ent->lde_fid, fid);
5926 ent->lde_hash = cpu_to_le64(offset);
5927 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
5929 strncpy(ent->lde_name, name, namelen);
5930 ent->lde_name[namelen] = '\0';
5931 ent->lde_namelen = cpu_to_le16(namelen);
5933 /* append lustre attributes */
5934 osd_it_append_attrs(ent, namelen, type);
5938 * Return pointer to the record under iterator.
5940 static int osd_it_iam_rec(const struct lu_env *env,
5941 const struct dt_it *di,
5942 struct dt_rec *dtrec, __u32 attr)
5944 struct osd_it_iam *it = (struct osd_it_iam *)di;
5945 struct osd_thread_info *info = osd_oti_get(env);
5948 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
5949 const struct osd_fid_pack *rec;
5950 struct lu_fid *fid = &info->oti_fid;
5951 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
5957 name = (char *)iam_it_key_get(&it->oi_it);
5959 RETURN(PTR_ERR(name));
5961 namelen = iam_it_key_size(&it->oi_it);
5963 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
5965 RETURN(PTR_ERR(rec));
5967 rc = osd_fid_unpack(fid, rec);
5971 hash = iam_it_store(&it->oi_it);
5973 /* IAM does not store object type in IAM index (dir) */
5974 osd_it_pack_dirent(lde, fid, hash, name, namelen,
5976 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
5977 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
5978 (struct iam_rec *)dtrec);
5979 osd_quota_unpack(it->oi_obj, dtrec);
5981 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
5982 (struct iam_rec *)dtrec);
5989 * Returns cookie for current Iterator position.
5991 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
5993 struct osd_it_iam *it = (struct osd_it_iam *)di;
5995 return iam_it_store(&it->oi_it);
5999 * Restore iterator from cookie.
6001 * \param di osd iterator
6002 * \param hash Iterator location cookie
6004 * \retval +ve di points to record with least key not larger than key.
6005 * \retval 0 di points to exact matched key
6006 * \retval -ve failure
6009 static int osd_it_iam_load(const struct lu_env *env,
6010 const struct dt_it *di, __u64 hash)
6012 struct osd_it_iam *it = (struct osd_it_iam *)di;
6014 return iam_it_load(&it->oi_it, hash);
6017 static const struct dt_index_operations osd_index_iam_ops = {
6018 .dio_lookup = osd_index_iam_lookup,
6019 .dio_declare_insert = osd_index_declare_iam_insert,
6020 .dio_insert = osd_index_iam_insert,
6021 .dio_declare_delete = osd_index_declare_iam_delete,
6022 .dio_delete = osd_index_iam_delete,
6024 .init = osd_it_iam_init,
6025 .fini = osd_it_iam_fini,
6026 .get = osd_it_iam_get,
6027 .put = osd_it_iam_put,
6028 .next = osd_it_iam_next,
6029 .key = osd_it_iam_key,
6030 .key_size = osd_it_iam_key_size,
6031 .rec = osd_it_iam_rec,
6032 .store = osd_it_iam_store,
6033 .load = osd_it_iam_load
6039 * Creates or initializes iterator context.
6041 * \retval struct osd_it_ea, iterator structure on success
6044 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
6045 struct dt_object *dt,
6048 struct osd_object *obj = osd_dt_obj(dt);
6049 struct osd_thread_info *info = osd_oti_get(env);
6050 struct osd_it_ea *oie;
6052 struct lu_object *lo = &dt->do_lu;
6053 struct dentry *obj_dentry;
6056 if (!dt_object_exists(dt) || obj->oo_destroyed)
6057 RETURN(ERR_PTR(-ENOENT));
6059 OBD_SLAB_ALLOC_PTR_GFP(oie, osd_itea_cachep, GFP_NOFS);
6061 RETURN(ERR_PTR(-ENOMEM));
6062 obj_dentry = &oie->oie_dentry;
6064 obj_dentry->d_inode = obj->oo_inode;
6065 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
6066 obj_dentry->d_name.hash = 0;
6068 oie->oie_rd_dirent = 0;
6069 oie->oie_it_dirent = 0;
6070 oie->oie_dirent = NULL;
6071 if (unlikely(!info->oti_it_ea_buf_used)) {
6072 oie->oie_buf = info->oti_it_ea_buf;
6073 info->oti_it_ea_buf_used = 1;
6075 OBD_ALLOC(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6076 if (oie->oie_buf == NULL)
6077 RETURN(ERR_PTR(-ENOMEM));
6081 file = &oie->oie_file;
6083 /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
6084 if (attr & LUDA_64BITHASH)
6085 file->f_mode = FMODE_64BITHASH;
6087 file->f_mode = FMODE_32BITHASH;
6088 file->f_path.dentry = obj_dentry;
6089 file->f_mapping = obj->oo_inode->i_mapping;
6090 file->f_op = obj->oo_inode->i_fop;
6091 set_file_inode(file, obj->oo_inode);
6094 RETURN((struct dt_it *) oie);
6098 * Destroy or finishes iterator context.
6100 * \param di iterator structure to be destroyed
6102 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
6104 struct osd_thread_info *info = osd_oti_get(env);
6105 struct osd_it_ea *oie = (struct osd_it_ea *)di;
6106 struct osd_object *obj = oie->oie_obj;
6107 struct inode *inode = obj->oo_inode;
6110 oie->oie_file.f_op->release(inode, &oie->oie_file);
6111 osd_object_put(env, obj);
6112 if (unlikely(oie->oie_buf != info->oti_it_ea_buf))
6113 OBD_FREE(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6115 info->oti_it_ea_buf_used = 0;
6116 OBD_SLAB_FREE_PTR(oie, osd_itea_cachep);
6121 * It position the iterator at given key, so that next lookup continues from
6122 * that key Or it is similar to dio_it->load() but based on a key,
6123 * rather than file position.
6125 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
6128 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
6130 static int osd_it_ea_get(const struct lu_env *env,
6131 struct dt_it *di, const struct dt_key *key)
6133 struct osd_it_ea *it = (struct osd_it_ea *)di;
6136 LASSERT(((const char *)key)[0] == '\0');
6137 it->oie_file.f_pos = 0;
6138 it->oie_rd_dirent = 0;
6139 it->oie_it_dirent = 0;
6140 it->oie_dirent = NULL;
6148 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
6152 struct osd_filldir_cbs {
6153 #ifdef HAVE_DIR_CONTEXT
6154 struct dir_context ctx;
6156 struct osd_it_ea *it;
6159 * It is called internally by ->readdir(). It fills the
6160 * iterator's in-memory data structure with required
6161 * information i.e. name, namelen, rec_size etc.
6163 * \param buf in which information to be filled in.
6164 * \param name name of the file in given dir
6166 * \retval 0 on success
6167 * \retval 1 on buffer full
6169 #ifdef HAVE_FILLDIR_USE_CTX
6170 static int osd_ldiskfs_filldir(struct dir_context *buf,
6172 static int osd_ldiskfs_filldir(void *buf,
6174 const char *name, int namelen,
6175 loff_t offset, __u64 ino, unsigned d_type)
6177 struct osd_it_ea *it =
6178 ((struct osd_filldir_cbs *)buf)->it;
6179 struct osd_object *obj = it->oie_obj;
6180 struct osd_it_ea_dirent *ent = it->oie_dirent;
6181 struct lu_fid *fid = &ent->oied_fid;
6182 struct osd_fid_pack *rec;
6185 /* this should never happen */
6186 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
6187 CERROR("ldiskfs return invalid namelen %d\n", namelen);
6191 if ((void *) ent - it->oie_buf + sizeof(*ent) + namelen >
6195 /* "." is just the object itself. */
6196 if (namelen == 1 && name[0] == '.') {
6197 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6198 } else if (d_type & LDISKFS_DIRENT_LUFID) {
6199 rec = (struct osd_fid_pack*) (name + namelen + 1);
6200 if (osd_fid_unpack(fid, rec) != 0)
6205 d_type &= ~LDISKFS_DIRENT_LUFID;
6207 /* NOT export local root. */
6208 if (unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
6209 ino = obj->oo_inode->i_ino;
6210 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6213 ent->oied_ino = ino;
6214 ent->oied_off = offset;
6215 ent->oied_namelen = namelen;
6216 ent->oied_type = d_type;
6218 memcpy(ent->oied_name, name, namelen);
6220 it->oie_rd_dirent++;
6221 it->oie_dirent = (void *) ent + cfs_size_round(sizeof(*ent) + namelen);
6226 * Calls ->readdir() to load a directory entry at a time
6227 * and stored it in iterator's in-memory data structure.
6229 * \param di iterator's in memory structure
6231 * \retval 0 on success
6232 * \retval -ve on error
6233 * \retval +1 reach the end of entry
6235 static int osd_ldiskfs_it_fill(const struct lu_env *env,
6236 const struct dt_it *di)
6238 struct osd_it_ea *it = (struct osd_it_ea *)di;
6239 struct osd_object *obj = it->oie_obj;
6240 struct inode *inode = obj->oo_inode;
6241 struct htree_lock *hlock = NULL;
6242 struct file *filp = &it->oie_file;
6244 struct osd_filldir_cbs buf = {
6245 #ifdef HAVE_DIR_CONTEXT
6246 .ctx.actor = osd_ldiskfs_filldir,
6252 it->oie_dirent = it->oie_buf;
6253 it->oie_rd_dirent = 0;
6255 if (obj->oo_hl_head != NULL) {
6256 hlock = osd_oti_get(env)->oti_hlock;
6257 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
6258 inode, LDISKFS_HLOCK_READDIR);
6260 down_read(&obj->oo_ext_idx_sem);
6263 #ifdef HAVE_DIR_CONTEXT
6264 buf.ctx.pos = filp->f_pos;
6265 rc = inode->i_fop->iterate(filp, &buf.ctx);
6266 filp->f_pos = buf.ctx.pos;
6268 rc = inode->i_fop->readdir(filp, &buf, osd_ldiskfs_filldir);
6272 ldiskfs_htree_unlock(hlock);
6274 up_read(&obj->oo_ext_idx_sem);
6276 if (it->oie_rd_dirent == 0) {
6277 /*If it does not get any dirent, it means it has been reached
6278 *to the end of the dir */
6279 it->oie_file.f_pos = ldiskfs_get_htree_eof(&it->oie_file);
6283 it->oie_dirent = it->oie_buf;
6284 it->oie_it_dirent = 1;
6291 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
6292 * to load a directory entry at a time and stored it in
6293 * iterator's in-memory data structure.
6295 * \param di iterator's in memory structure
6297 * \retval +ve iterator reached to end
6298 * \retval 0 iterator not reached to end
6299 * \retval -ve on error
6301 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
6303 struct osd_it_ea *it = (struct osd_it_ea *)di;
6308 if (it->oie_it_dirent < it->oie_rd_dirent) {
6310 (void *) it->oie_dirent +
6311 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
6312 it->oie_dirent->oied_namelen);
6313 it->oie_it_dirent++;
6316 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
6319 rc = osd_ldiskfs_it_fill(env, di);
6326 * Returns the key at current position from iterator's in memory structure.
6328 * \param di iterator's in memory structure
6330 * \retval key i.e. struct dt_key on success
6332 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
6333 const struct dt_it *di)
6335 struct osd_it_ea *it = (struct osd_it_ea *)di;
6337 return (struct dt_key *)it->oie_dirent->oied_name;
6341 * Returns the key's size at current position from iterator's in memory structure.
6343 * \param di iterator's in memory structure
6345 * \retval key_size i.e. struct dt_key on success
6347 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
6349 struct osd_it_ea *it = (struct osd_it_ea *)di;
6351 return it->oie_dirent->oied_namelen;
6354 static inline bool osd_dotdot_has_space(struct ldiskfs_dir_entry_2 *de)
6356 if (LDISKFS_DIR_REC_LEN(de) >=
6357 __LDISKFS_DIR_REC_LEN(2 + 1 + sizeof(struct osd_fid_pack)))
6364 osd_dirent_has_space(struct ldiskfs_dir_entry_2 *de, __u16 namelen,
6365 unsigned blocksize, bool dotdot)
6368 return osd_dotdot_has_space(de);
6370 if (ldiskfs_rec_len_from_disk(de->rec_len, blocksize) >=
6371 __LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
6378 osd_dirent_reinsert(const struct lu_env *env, struct osd_device *dev,
6379 handle_t *jh, struct dentry *dentry,
6380 const struct lu_fid *fid, struct buffer_head *bh,
6381 struct ldiskfs_dir_entry_2 *de, struct htree_lock *hlock,
6384 struct inode *dir = dentry->d_parent->d_inode;
6385 struct inode *inode = dentry->d_inode;
6386 struct osd_fid_pack *rec;
6387 struct ldiskfs_dentry_param *ldp;
6388 int namelen = dentry->d_name.len;
6390 struct osd_thread_info *info = osd_oti_get(env);
6393 if (!ldiskfs_has_feature_dirdata(inode->i_sb))
6396 /* There is enough space to hold the FID-in-dirent. */
6397 if (osd_dirent_has_space(de, namelen, dir->i_sb->s_blocksize, dotdot)) {
6398 rc = ldiskfs_journal_get_write_access(jh, bh);
6402 de->name[namelen] = 0;
6403 rec = (struct osd_fid_pack *)(de->name + namelen + 1);
6404 rec->fp_len = sizeof(struct lu_fid) + 1;
6405 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
6406 de->file_type |= LDISKFS_DIRENT_LUFID;
6407 rc = ldiskfs_handle_dirty_metadata(jh, NULL, bh);
6414 rc = ldiskfs_delete_entry(jh, dir, de, bh);
6418 ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
6419 osd_get_ldiskfs_dirent_param(ldp, fid);
6420 dentry->d_fsdata = (void *)ldp;
6421 ll_vfs_dq_init(dir);
6422 rc = osd_ldiskfs_add_entry(info, dev, jh, dentry, inode, hlock);
6423 /* It is too bad, we cannot reinsert the name entry back.
6424 * That means we lose it! */
6426 CDEBUG(D_LFSCK, "%s: fail to reinsert the dirent, "
6427 "dir = %lu/%u, name = %.*s, "DFID": rc = %d\n",
6428 osd_ino2name(inode),
6429 dir->i_ino, dir->i_generation, namelen,
6430 dentry->d_name.name, PFID(fid), rc);
6436 osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
6437 struct osd_it_ea *it, struct lu_fid *fid,
6438 struct osd_inode_id *id, __u32 *attr)
6440 struct osd_thread_info *info = osd_oti_get(env);
6441 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
6442 struct osd_device *dev = osd_obj2dev(obj);
6443 struct super_block *sb = osd_sb(dev);
6444 const char *devname = osd_name(dev);
6445 struct osd_it_ea_dirent *ent = it->oie_dirent;
6446 struct inode *dir = obj->oo_inode;
6447 struct htree_lock *hlock = NULL;
6448 struct buffer_head *bh = NULL;
6449 handle_t *jh = NULL;
6450 struct ldiskfs_dir_entry_2 *de;
6451 struct dentry *dentry;
6452 struct inode *inode;
6453 const struct lu_fid *pfid = lu_object_fid(&obj->oo_dt.do_lu);
6456 bool dotdot = false;
6460 if (ent->oied_name[0] == '.') {
6461 if (ent->oied_namelen == 1)
6464 if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
6468 osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
6469 inode = osd_iget(info, dev, id);
6470 if (IS_ERR(inode)) {
6471 rc = PTR_ERR(inode);
6472 if (rc == -ENOENT || rc == -ESTALE) {
6473 /* Maybe dangling name entry, or
6474 * corrupted directory entry. */
6475 *attr |= LUDA_UNKNOWN;
6478 CDEBUG(D_LFSCK, "%s: fail to iget() for dirent "
6479 "check_repair, dir = %lu/%u, name = %.*s, "
6480 "ino = %llu, rc = %d\n",
6481 devname, dir->i_ino, dir->i_generation,
6482 ent->oied_namelen, ent->oied_name,
6489 dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
6491 rc = osd_get_lma(info, inode, dentry, &info->oti_ost_attrs);
6492 if (rc == -ENODATA || !fid_is_sane(&lma->lma_self_fid))
6497 /* We need to ensure that the name entry is still valid.
6498 * Because it may be removed or renamed by other already.
6500 * The unlink or rename operation will start journal before PDO lock,
6501 * so to avoid deadlock, here we need to start journal handle before
6502 * related PDO lock also. But because we do not know whether there
6503 * will be something to be repaired before PDO lock, we just start
6504 * journal without conditions.
6506 * We may need to remove the name entry firstly, then insert back.
6507 * One credit is for user quota file update.
6508 * One credit is for group quota file update.
6509 * Two credits are for dirty inode. */
6510 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
6511 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
6513 if (dev->od_dirent_journal != 0) {
6516 jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
6519 CDEBUG(D_LFSCK, "%s: fail to start trans for dirent "
6520 "check_repair, dir = %lu/%u, credits = %d, "
6521 "name = %.*s, ino = %llu: rc = %d\n",
6522 devname, dir->i_ino, dir->i_generation, credits,
6523 ent->oied_namelen, ent->oied_name,
6526 GOTO(out_inode, rc);
6529 if (obj->oo_hl_head != NULL) {
6530 hlock = osd_oti_get(env)->oti_hlock;
6531 /* "0" means exclusive lock for the whole directory.
6532 * We need to prevent others access such name entry
6533 * during the delete + insert. Neither HLOCK_ADD nor
6534 * HLOCK_DEL cannot guarantee the atomicity. */
6535 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
6537 down_write(&obj->oo_ext_idx_sem);
6540 if (obj->oo_hl_head != NULL) {
6541 hlock = osd_oti_get(env)->oti_hlock;
6542 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
6543 LDISKFS_HLOCK_LOOKUP);
6545 down_read(&obj->oo_ext_idx_sem);
6549 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
6550 if (IS_ERR(bh) || le32_to_cpu(de->inode) != inode->i_ino) {
6551 *attr |= LUDA_IGNORE;
6556 /* For dotdot entry, if there is not enough space to hold the
6557 * FID-in-dirent, just keep them there. It only happens when the
6558 * device upgraded from 1.8 or restored from MDT file-level backup.
6559 * For the whole directory, only dotdot entry have no FID-in-dirent
6560 * and needs to get FID from LMA when readdir, it will not affect the
6561 * performance much. */
6562 if (dotdot && !osd_dotdot_has_space(de)) {
6563 *attr |= LUDA_UNKNOWN;
6569 if (lu_fid_eq(fid, &lma->lma_self_fid))
6572 if (unlikely(lma->lma_compat & LMAC_NOT_IN_OI)) {
6573 struct lu_fid *tfid = &lma->lma_self_fid;
6575 if (likely(dotdot &&
6576 fid_seq(tfid) == FID_SEQ_LOCAL_FILE &&
6577 fid_oid(tfid) == REMOTE_PARENT_DIR_OID)) {
6578 /* It must be REMOTE_PARENT_DIR and as the
6579 * 'dotdot' entry of remote directory */
6580 *attr |= LUDA_IGNORE;
6582 CDEBUG(D_LFSCK, "%s: expect remote agent "
6583 "parent directory, but got %.*s under "
6584 "dir = %lu/%u with the FID "DFID"\n",
6585 devname, ent->oied_namelen,
6586 ent->oied_name, dir->i_ino,
6587 dir->i_generation, PFID(tfid));
6589 *attr |= LUDA_UNKNOWN;
6596 if (!fid_is_zero(fid)) {
6597 rc = osd_verify_ent_by_linkea(env, inode, pfid, ent->oied_name,
6599 if (rc == -ENOENT ||
6601 !(dev->od_scrub.os_scrub.os_file.sf_flags & SF_UPGRADE))) {
6602 /* linkEA does not recognize the dirent entry,
6603 * it may because the dirent entry corruption
6604 * and points to other's inode. */
6605 CDEBUG(D_LFSCK, "%s: the target inode does not "
6606 "recognize the dirent, dir = %lu/%u, "
6607 " name = %.*s, ino = %llu, "
6608 DFID": rc = %d\n", devname, dir->i_ino,
6609 dir->i_generation, ent->oied_namelen,
6610 ent->oied_name, ent->oied_ino, PFID(fid), rc);
6611 *attr |= LUDA_UNKNOWN;
6616 if (rc && rc != -ENODATA) {
6617 CDEBUG(D_LFSCK, "%s: fail to verify FID in the dirent, "
6618 "dir = %lu/%u, name = %.*s, ino = %llu, "
6619 DFID": rc = %d\n", devname, dir->i_ino,
6620 dir->i_generation, ent->oied_namelen,
6621 ent->oied_name, ent->oied_ino, PFID(fid), rc);
6622 *attr |= LUDA_UNKNOWN;
6629 /* linkEA recognizes the dirent entry, the FID-in-LMA is
6630 * valid, trusted, in spite of fid_is_sane(fid) or not. */
6631 if (*attr & LUDA_VERIFY_DRYRUN) {
6632 *fid = lma->lma_self_fid;
6633 *attr |= LUDA_REPAIR;
6640 dev->od_dirent_journal = 1;
6641 if (hlock != NULL) {
6642 ldiskfs_htree_unlock(hlock);
6645 up_read(&obj->oo_ext_idx_sem);
6651 *fid = lma->lma_self_fid;
6653 /* Update or append the FID-in-dirent. */
6654 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
6655 bh, de, hlock, dotdot);
6657 *attr |= LUDA_REPAIR;
6659 CDEBUG(D_LFSCK, "%s: fail to re-insert FID after "
6660 "the dirent, dir = %lu/%u, name = %.*s, "
6661 "ino = %llu, "DFID": rc = %d\n",
6662 devname, dir->i_ino, dir->i_generation,
6663 ent->oied_namelen, ent->oied_name,
6664 ent->oied_ino, PFID(fid), rc);
6666 /* lma is NULL, trust the FID-in-dirent if it is valid. */
6667 if (*attr & LUDA_VERIFY_DRYRUN) {
6668 if (fid_is_sane(fid)) {
6669 *attr |= LUDA_REPAIR;
6670 } else if (dev->od_index == 0) {
6671 lu_igif_build(fid, inode->i_ino,
6672 inode->i_generation);
6673 *attr |= LUDA_UPGRADE;
6681 dev->od_dirent_journal = 1;
6682 if (hlock != NULL) {
6683 ldiskfs_htree_unlock(hlock);
6686 up_read(&obj->oo_ext_idx_sem);
6693 if (unlikely(fid_is_sane(fid))) {
6694 /* FID-in-dirent exists, but FID-in-LMA is lost.
6695 * Trust the FID-in-dirent, and add FID-in-LMA. */
6696 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
6698 *attr |= LUDA_REPAIR;
6700 CDEBUG(D_LFSCK, "%s: fail to set LMA for "
6701 "update dirent, dir = %lu/%u, "
6702 "name = %.*s, ino = %llu, "
6704 devname, dir->i_ino, dir->i_generation,
6705 ent->oied_namelen, ent->oied_name,
6706 ent->oied_ino, PFID(fid), rc);
6707 } else if (dev->od_index == 0) {
6708 lu_igif_build(fid, inode->i_ino, inode->i_generation);
6709 /* It is probably IGIF object. Only aappend the
6710 * FID-in-dirent. OI scrub will process FID-in-LMA. */
6711 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
6712 bh, de, hlock, dotdot);
6714 *attr |= LUDA_UPGRADE;
6716 CDEBUG(D_LFSCK, "%s: fail to append IGIF "
6717 "after the dirent, dir = %lu/%u, "
6718 "name = %.*s, ino = %llu, "
6720 devname, dir->i_ino, dir->i_generation,
6721 ent->oied_namelen, ent->oied_name,
6722 ent->oied_ino, PFID(fid), rc);
6731 if (hlock != NULL) {
6732 ldiskfs_htree_unlock(hlock);
6734 if (dev->od_dirent_journal != 0)
6735 up_write(&obj->oo_ext_idx_sem);
6737 up_read(&obj->oo_ext_idx_sem);
6741 ldiskfs_journal_stop(jh);
6745 if (rc >= 0 && !dirty)
6746 dev->od_dirent_journal = 0;
6752 * Returns the value at current position from iterator's in memory structure.
6754 * \param di struct osd_it_ea, iterator's in memory structure
6755 * \param attr attr requested for dirent.
6756 * \param lde lustre dirent
6758 * \retval 0 no error and \param lde has correct lustre dirent.
6759 * \retval -ve on error
6761 static inline int osd_it_ea_rec(const struct lu_env *env,
6762 const struct dt_it *di,
6763 struct dt_rec *dtrec, __u32 attr)
6765 struct osd_it_ea *it = (struct osd_it_ea *)di;
6766 struct osd_object *obj = it->oie_obj;
6767 struct osd_device *dev = osd_obj2dev(obj);
6768 struct osd_thread_info *oti = osd_oti_get(env);
6769 struct osd_inode_id *id = &oti->oti_id;
6770 struct lu_fid *fid = &it->oie_dirent->oied_fid;
6771 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
6772 __u32 ino = it->oie_dirent->oied_ino;
6776 LASSERT(!is_remote_parent_ino(dev, obj->oo_inode->i_ino));
6778 if (attr & LUDA_VERIFY) {
6779 if (unlikely(is_remote_parent_ino(dev, ino))) {
6780 attr |= LUDA_IGNORE;
6781 /* If the parent is on remote MDT, and there
6782 * is no FID-in-dirent, then we have to get
6783 * the parent FID from the linkEA. */
6784 if (!fid_is_sane(fid) &&
6785 it->oie_dirent->oied_namelen == 2 &&
6786 it->oie_dirent->oied_name[0] == '.' &&
6787 it->oie_dirent->oied_name[1] == '.')
6788 osd_get_pfid_from_linkea(env, obj, fid);
6790 rc = osd_dirent_check_repair(env, obj, it, fid, id,
6794 if (!fid_is_sane(fid))
6795 attr |= LUDA_UNKNOWN;
6797 attr &= ~LU_DIRENT_ATTRS_MASK;
6798 if (!fid_is_sane(fid)) {
6799 bool is_dotdot = false;
6800 if (it->oie_dirent->oied_namelen == 2 &&
6801 it->oie_dirent->oied_name[0] == '.' &&
6802 it->oie_dirent->oied_name[1] == '.')
6804 /* If the parent is on remote MDT, and there
6805 * is no FID-in-dirent, then we have to get
6806 * the parent FID from the linkEA. */
6807 if (is_remote_parent_ino(dev, ino) && is_dotdot) {
6808 rc = osd_get_pfid_from_linkea(env, obj, fid);
6810 if (is_dotdot == false &&
6811 OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP))
6814 rc = osd_ea_fid_get(env, obj, ino, fid, id);
6817 osd_id_gen(id, ino, OSD_OII_NOGEN);
6821 /* Pack the entry anyway, at least the offset is right. */
6822 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
6823 it->oie_dirent->oied_name,
6824 it->oie_dirent->oied_namelen,
6825 it->oie_dirent->oied_type, attr);
6830 if (osd_remote_fid(env, dev, fid))
6833 if (likely(!(attr & (LUDA_IGNORE | LUDA_UNKNOWN)) && rc == 0))
6834 osd_add_oi_cache(oti, dev, id, fid);
6836 RETURN(rc > 0 ? 0 : rc);
6840 * Returns the record size size at current position.
6842 * This function will return record(lu_dirent) size in bytes.
6844 * \param[in] env execution environment
6845 * \param[in] di iterator's in memory structure
6846 * \param[in] attr attribute of the entry, only requires LUDA_TYPE to
6847 * calculate the lu_dirent size.
6849 * \retval record size(in bytes & in memory) of the current lu_dirent
6852 static int osd_it_ea_rec_size(const struct lu_env *env, const struct dt_it *di,
6855 struct osd_it_ea *it = (struct osd_it_ea *)di;
6857 return lu_dirent_calc_size(it->oie_dirent->oied_namelen, attr);
6861 * Returns a cookie for current position of the iterator head, so that
6862 * user can use this cookie to load/start the iterator next time.
6864 * \param di iterator's in memory structure
6866 * \retval cookie for current position, on success
6868 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
6870 struct osd_it_ea *it = (struct osd_it_ea *)di;
6872 return it->oie_dirent->oied_off;
6876 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
6877 * to load a directory entry at a time and stored it i inn,
6878 * in iterator's in-memory data structure.
6880 * \param di struct osd_it_ea, iterator's in memory structure
6882 * \retval +ve on success
6883 * \retval -ve on error
6885 static int osd_it_ea_load(const struct lu_env *env,
6886 const struct dt_it *di, __u64 hash)
6888 struct osd_it_ea *it = (struct osd_it_ea *)di;
6892 it->oie_file.f_pos = hash;
6894 rc = osd_ldiskfs_it_fill(env, di);
6905 * Index lookup function for interoperability mode (b11826).
6907 * \param key, key i.e. file name to be searched
6909 * \retval +ve, on success
6910 * \retval -ve, on error
6912 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
6913 struct dt_rec *rec, const struct dt_key *key)
6915 struct osd_object *obj = osd_dt_obj(dt);
6920 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
6921 LINVRNT(osd_invariant(obj));
6923 rc = osd_ea_lookup_rec(env, obj, rec, key);
6930 * Index and Iterator operations for interoperability
6931 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
6933 static const struct dt_index_operations osd_index_ea_ops = {
6934 .dio_lookup = osd_index_ea_lookup,
6935 .dio_declare_insert = osd_index_declare_ea_insert,
6936 .dio_insert = osd_index_ea_insert,
6937 .dio_declare_delete = osd_index_declare_ea_delete,
6938 .dio_delete = osd_index_ea_delete,
6940 .init = osd_it_ea_init,
6941 .fini = osd_it_ea_fini,
6942 .get = osd_it_ea_get,
6943 .put = osd_it_ea_put,
6944 .next = osd_it_ea_next,
6945 .key = osd_it_ea_key,
6946 .key_size = osd_it_ea_key_size,
6947 .rec = osd_it_ea_rec,
6948 .rec_size = osd_it_ea_rec_size,
6949 .store = osd_it_ea_store,
6950 .load = osd_it_ea_load
6954 static void *osd_key_init(const struct lu_context *ctx,
6955 struct lu_context_key *key)
6957 struct osd_thread_info *info;
6959 OBD_ALLOC_PTR(info);
6961 return ERR_PTR(-ENOMEM);
6963 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
6964 if (info->oti_it_ea_buf == NULL)
6967 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
6969 info->oti_hlock = ldiskfs_htree_lock_alloc();
6970 if (info->oti_hlock == NULL)
6976 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
6979 return ERR_PTR(-ENOMEM);
6982 static void osd_key_fini(const struct lu_context *ctx,
6983 struct lu_context_key *key, void* data)
6985 struct osd_thread_info *info = data;
6986 struct ldiskfs_inode_info *lli = LDISKFS_I(info->oti_inode);
6987 struct osd_idmap_cache *idc = info->oti_ins_cache;
6989 if (info->oti_inode != NULL)
6991 if (info->oti_hlock != NULL)
6992 ldiskfs_htree_lock_free(info->oti_hlock);
6993 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
6994 lu_buf_free(&info->oti_iobuf.dr_pg_buf);
6995 lu_buf_free(&info->oti_iobuf.dr_bl_buf);
6996 lu_buf_free(&info->oti_big_buf);
6998 LASSERT(info->oti_ins_cache_size > 0);
6999 OBD_FREE(idc, sizeof(*idc) * info->oti_ins_cache_size);
7000 info->oti_ins_cache = NULL;
7001 info->oti_ins_cache_size = 0;
7006 static void osd_key_exit(const struct lu_context *ctx,
7007 struct lu_context_key *key, void *data)
7009 struct osd_thread_info *info = data;
7011 LASSERT(info->oti_r_locks == 0);
7012 LASSERT(info->oti_w_locks == 0);
7013 LASSERT(info->oti_txns == 0);
7016 /* type constructor/destructor: osd_type_init, osd_type_fini */
7017 LU_TYPE_INIT_FINI(osd, &osd_key);
7019 struct lu_context_key osd_key = {
7020 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
7021 .lct_init = osd_key_init,
7022 .lct_fini = osd_key_fini,
7023 .lct_exit = osd_key_exit
7027 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
7028 const char *name, struct lu_device *next)
7030 struct osd_device *osd = osd_dev(d);
7032 if (strlcpy(osd->od_svname, name, sizeof(osd->od_svname))
7033 >= sizeof(osd->od_svname))
7035 return osd_procfs_init(osd, name);
7038 static int osd_fid_init(const struct lu_env *env, struct osd_device *osd)
7040 struct seq_server_site *ss = osd_seq_site(osd);
7044 if (osd->od_is_ost || osd->od_cl_seq != NULL)
7047 if (unlikely(ss == NULL))
7050 OBD_ALLOC_PTR(osd->od_cl_seq);
7051 if (osd->od_cl_seq == NULL)
7054 rc = seq_client_init(osd->od_cl_seq, NULL, LUSTRE_SEQ_METADATA,
7055 osd->od_svname, ss->ss_server_seq);
7057 OBD_FREE_PTR(osd->od_cl_seq);
7058 osd->od_cl_seq = NULL;
7062 if (ss->ss_node_id == 0) {
7063 /* If the OSD on the sequence controller(MDT0), then allocate
7064 * sequence here, otherwise allocate sequence after connected
7065 * to MDT0 (see mdt_register_lwp_callback()). */
7066 rc = seq_server_alloc_meta(osd->od_cl_seq->lcs_srv,
7067 &osd->od_cl_seq->lcs_space, env);
7073 static void osd_fid_fini(const struct lu_env *env, struct osd_device *osd)
7075 if (osd->od_cl_seq == NULL)
7078 seq_client_fini(osd->od_cl_seq);
7079 OBD_FREE_PTR(osd->od_cl_seq);
7080 osd->od_cl_seq = NULL;
7083 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
7087 /* shutdown quota slave instance associated with the device */
7088 if (o->od_quota_slave != NULL) {
7089 struct qsd_instance *qsd = o->od_quota_slave;
7091 o->od_quota_slave = NULL;
7095 osd_fid_fini(env, o);
7096 osd_scrub_cleanup(env, o);
7101 static void osd_umount(const struct lu_env *env, struct osd_device *o)
7105 if (o->od_mnt != NULL) {
7106 shrink_dcache_sb(osd_sb(o));
7107 osd_sync(env, &o->od_dt_dev);
7116 static int osd_mount(const struct lu_env *env,
7117 struct osd_device *o, struct lustre_cfg *cfg)
7119 const char *name = lustre_cfg_string(cfg, 0);
7120 const char *dev = lustre_cfg_string(cfg, 1);
7122 unsigned long page, s_flags, lmd_flags = 0;
7123 struct page *__page;
7124 struct file_system_type *type;
7125 char *options = NULL;
7127 struct osd_thread_info *info = osd_oti_get(env);
7128 struct lu_fid *fid = &info->oti_fid;
7129 struct inode *inode;
7130 int rc = 0, force_over_512tb = 0;
7133 if (o->od_mnt != NULL)
7136 if (strlen(dev) >= sizeof(o->od_mntdev))
7138 strcpy(o->od_mntdev, dev);
7140 str = lustre_cfg_string(cfg, 2);
7141 s_flags = simple_strtoul(str, NULL, 0);
7142 str = strstr(str, ":");
7144 lmd_flags = simple_strtoul(str + 1, NULL, 0);
7145 opts = lustre_cfg_string(cfg, 3);
7147 if (opts == NULL || strstr(opts, "bigendian_extents") == NULL) {
7148 CERROR("%s: device %s extents feature is not guaranteed to "
7149 "work on big-endian systems. Use \"bigendian_extents\" "
7150 "mount option to override.\n", name, dev);
7154 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7155 if (opts != NULL && strstr(opts, "force_over_128tb") != NULL) {
7156 CWARN("force_over_128tb option is deprecated. "
7157 "Filesystems less than 512TB can be created without any "
7158 "force options. Use force_over_512tb option for "
7159 "filesystems greater than 512TB.\n");
7162 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 1, 53, 0)
7163 if (opts != NULL && strstr(opts, "force_over_256tb") != NULL) {
7164 CWARN("force_over_256tb option is deprecated. "
7165 "Filesystems less than 512TB can be created without any "
7166 "force options. Use force_over_512tb option for "
7167 "filesystems greater than 512TB.\n");
7171 if (opts != NULL && strstr(opts, "force_over_512tb") != NULL)
7172 force_over_512tb = 1;
7174 __page = alloc_page(GFP_KERNEL);
7176 GOTO(out, rc = -ENOMEM);
7177 page = (unsigned long)page_address(__page);
7178 options = (char *)page;
7181 /* strip out the options for back compatiblity */
7182 static char *sout[] = {
7189 /* strip out option we processed in osd */
7190 "bigendian_extents",
7196 strcat(options, opts);
7197 for (rc = 0, str = options; sout[rc]; ) {
7198 char *op = strstr(str, sout[rc]);
7204 if (op == options || *(op - 1) == ',') {
7205 str = op + strlen(sout[rc]);
7206 if (*str == ',' || *str == '\0') {
7207 *str == ',' ? str++ : str;
7208 memmove(op, str, strlen(str) + 1);
7211 for (str = op; *str != ',' && *str != '\0'; str++)
7215 strncat(options, "user_xattr,acl", 14);
7218 /* Glom up mount options */
7219 if (*options != '\0')
7220 strcat(options, ",");
7221 strlcat(options, "no_mbcache,nodelalloc", PAGE_SIZE);
7223 type = get_fs_type("ldiskfs");
7225 CERROR("%s: cannot find ldiskfs module\n", name);
7226 GOTO(out, rc = -ENODEV);
7229 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
7230 module_put(type->owner);
7232 if (IS_ERR(o->od_mnt)) {
7233 rc = PTR_ERR(o->od_mnt);
7235 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
7239 if (ldiskfs_blocks_count(LDISKFS_SB(osd_sb(o))->s_es) <<
7240 osd_sb(o)->s_blocksize_bits > 512ULL << 40 &&
7241 force_over_512tb == 0) {
7242 CERROR("%s: device %s LDISKFS does not support filesystems "
7243 "greater than 512TB and can cause data corruption. "
7244 "Use \"force_over_512tb\" mount option to override.\n",
7246 GOTO(out_mnt, rc = -EINVAL);
7249 if (lmd_flags & LMD_FLG_DEV_RDONLY) {
7250 if (priv_dev_set_rdonly) {
7251 priv_dev_set_rdonly(osd_sb(o)->s_bdev);
7252 o->od_dt_dev.dd_rdonly = 1;
7253 LCONSOLE_WARN("%s: set dev_rdonly on this device\n",
7256 LCONSOLE_WARN("%s: not support dev_rdonly on this device",
7259 GOTO(out_mnt, rc = -EOPNOTSUPP);
7261 } else if (priv_dev_check_rdonly &&
7262 priv_dev_check_rdonly(osd_sb(o)->s_bdev)) {
7263 CERROR("%s: underlying device %s is marked as "
7264 "read-only. Setup failed\n", name, dev);
7266 GOTO(out_mnt, rc = -EROFS);
7269 if (!ldiskfs_has_feature_journal(o->od_mnt->mnt_sb)) {
7270 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
7271 GOTO(out_mnt, rc = -EINVAL);
7274 #ifdef LDISKFS_MOUNT_DIRDATA
7275 if (ldiskfs_has_feature_dirdata(o->od_mnt->mnt_sb))
7276 LDISKFS_SB(osd_sb(o))->s_mount_opt |= LDISKFS_MOUNT_DIRDATA;
7277 else if (strstr(name, "MDT")) /* don't complain for MGT or OSTs */
7278 CWARN("%s: device %s was upgraded from Lustre-1.x without "
7279 "enabling the dirdata feature. If you do not want to "
7280 "downgrade to Lustre-1.x again, you can enable it via "
7281 "'tune2fs -O dirdata device'\n", name, dev);
7283 inode = osd_sb(o)->s_root->d_inode;
7284 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
7285 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
7287 CERROR("%s: failed to set lma on %s root inode\n", name, dev);
7291 if (lmd_flags & LMD_FLG_NOSCRUB)
7292 o->od_auto_scrub_interval = AS_NEVER;
7302 __free_page(__page);
7307 static struct lu_device *osd_device_fini(const struct lu_env *env,
7308 struct lu_device *d)
7310 struct osd_device *o = osd_dev(d);
7313 osd_index_backup(env, o, false);
7314 osd_shutdown(env, o);
7316 osd_obj_map_fini(o);
7322 static int osd_device_init0(const struct lu_env *env,
7323 struct osd_device *o,
7324 struct lustre_cfg *cfg)
7326 struct lu_device *l = osd2lu_dev(o);
7327 struct osd_thread_info *info;
7331 /* if the module was re-loaded, env can loose its keys */
7332 rc = lu_env_refill((struct lu_env *) env);
7335 info = osd_oti_get(env);
7338 l->ld_ops = &osd_lu_ops;
7339 o->od_dt_dev.dd_ops = &osd_dt_ops;
7341 spin_lock_init(&o->od_osfs_lock);
7342 mutex_init(&o->od_otable_mutex);
7343 INIT_LIST_HEAD(&o->od_orphan_list);
7344 INIT_LIST_HEAD(&o->od_index_backup_list);
7345 INIT_LIST_HEAD(&o->od_index_restore_list);
7346 spin_lock_init(&o->od_lock);
7347 o->od_index_backup_policy = LIBP_NONE;
7349 o->od_read_cache = 1;
7350 o->od_writethrough_cache = 1;
7351 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
7352 o->od_auto_scrub_interval = AS_DEFAULT;
7354 cplen = strlcpy(o->od_svname, lustre_cfg_string(cfg, 4),
7355 sizeof(o->od_svname));
7356 if (cplen >= sizeof(o->od_svname)) {
7361 o->od_index_backup_stop = 0;
7362 o->od_index = -1; /* -1 means index is invalid */
7363 rc = server_name2index(o->od_svname, &o->od_index, NULL);
7364 if (rc == LDD_F_SV_TYPE_OST)
7367 o->od_full_scrub_ratio = OFSR_DEFAULT;
7368 o->od_full_scrub_threshold_rate = FULL_SCRUB_THRESHOLD_RATE_DEFAULT;
7369 rc = osd_mount(env, o, cfg);
7373 rc = osd_obj_map_init(env, o);
7377 rc = lu_site_init(&o->od_site, l);
7379 GOTO(out_compat, rc);
7380 o->od_site.ls_bottom_dev = l;
7382 rc = lu_site_init_finish(&o->od_site);
7386 INIT_LIST_HEAD(&o->od_ios_list);
7387 /* setup scrub, including OI files initialization */
7389 rc = osd_scrub_setup(env, o);
7394 rc = osd_procfs_init(o, o->od_svname);
7396 CERROR("%s: can't initialize procfs: rc = %d\n",
7398 GOTO(out_scrub, rc);
7401 LASSERT(l->ld_site->ls_linkage.next != NULL);
7402 LASSERT(l->ld_site->ls_linkage.prev != NULL);
7404 /* initialize quota slave instance */
7405 o->od_quota_slave = qsd_init(env, o->od_svname, &o->od_dt_dev,
7407 if (IS_ERR(o->od_quota_slave)) {
7408 rc = PTR_ERR(o->od_quota_slave);
7409 o->od_quota_slave = NULL;
7410 GOTO(out_procfs, rc);
7418 osd_scrub_cleanup(env, o);
7420 lu_site_fini(&o->od_site);
7422 osd_obj_map_fini(o);
7429 static struct lu_device *osd_device_alloc(const struct lu_env *env,
7430 struct lu_device_type *t,
7431 struct lustre_cfg *cfg)
7433 struct osd_device *o;
7438 return ERR_PTR(-ENOMEM);
7440 rc = dt_device_init(&o->od_dt_dev, t);
7442 /* Because the ctx might be revived in dt_device_init,
7443 * refill the env here */
7444 lu_env_refill((struct lu_env *)env);
7445 rc = osd_device_init0(env, o, cfg);
7447 dt_device_fini(&o->od_dt_dev);
7450 if (unlikely(rc != 0))
7453 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
7456 static struct lu_device *osd_device_free(const struct lu_env *env,
7457 struct lu_device *d)
7459 struct osd_device *o = osd_dev(d);
7462 /* XXX: make osd top device in order to release reference */
7463 d->ld_site->ls_top_dev = d;
7464 lu_site_purge(env, d->ld_site, -1);
7465 if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
7466 LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
7467 lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
7469 lu_site_fini(&o->od_site);
7470 dt_device_fini(&o->od_dt_dev);
7475 static int osd_process_config(const struct lu_env *env,
7476 struct lu_device *d, struct lustre_cfg *cfg)
7478 struct osd_device *o = osd_dev(d);
7482 switch (cfg->lcfg_command) {
7484 rc = osd_mount(env, o, cfg);
7487 /* For the case LCFG_PRE_CLEANUP is not called in advance,
7488 * that may happend if hit failure during mount process. */
7489 osd_index_backup(env, o, false);
7490 lu_dev_del_linkage(d->ld_site, d);
7491 rc = osd_shutdown(env, o);
7494 LASSERT(&o->od_dt_dev);
7495 rc = class_process_proc_param(PARAM_OSD, lprocfs_osd_obd_vars,
7496 cfg, &o->od_dt_dev);
7497 if (rc > 0 || rc == -ENOSYS) {
7498 rc = class_process_proc_param(PARAM_OST,
7499 lprocfs_osd_obd_vars,
7500 cfg, &o->od_dt_dev);
7505 case LCFG_PRE_CLEANUP:
7507 osd_index_backup(env, o,
7508 o->od_index_backup_policy != LIBP_NONE);
7518 static int osd_recovery_complete(const struct lu_env *env,
7519 struct lu_device *d)
7521 struct osd_device *osd = osd_dev(d);
7525 if (osd->od_quota_slave == NULL)
7528 /* start qsd instance on recovery completion, this notifies the quota
7529 * slave code that we are about to process new requests now */
7530 rc = qsd_start(env, osd->od_quota_slave);
7535 * we use exports to track all osd users
7537 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
7538 struct obd_device *obd, struct obd_uuid *cluuid,
7539 struct obd_connect_data *data, void *localdata)
7541 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
7542 struct lustre_handle conn;
7546 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
7548 rc = class_connect(&conn, obd, cluuid);
7552 *exp = class_conn2export(&conn);
7554 spin_lock(&osd->od_osfs_lock);
7556 spin_unlock(&osd->od_osfs_lock);
7562 * once last export (we don't count self-export) disappeared
7563 * osd can be released
7565 static int osd_obd_disconnect(struct obd_export *exp)
7567 struct obd_device *obd = exp->exp_obd;
7568 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
7569 int rc, release = 0;
7572 /* Only disconnect the underlying layers on the final disconnect. */
7573 spin_lock(&osd->od_osfs_lock);
7575 if (osd->od_connects == 0)
7577 spin_unlock(&osd->od_osfs_lock);
7579 rc = class_disconnect(exp); /* bz 9811 */
7581 if (rc == 0 && release)
7582 class_manual_cleanup(obd);
7586 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
7587 struct lu_device *dev)
7589 struct osd_device *osd = osd_dev(dev);
7590 struct lr_server_data *lsd =
7591 &osd->od_dt_dev.dd_lu_dev.ld_site->ls_tgt->lut_lsd;
7595 if (osd->od_quota_slave != NULL) {
7596 /* set up quota slave objects */
7597 result = qsd_prepare(env, osd->od_quota_slave);
7602 if (lsd->lsd_feature_incompat & OBD_COMPAT_OST) {
7603 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
7604 if (lsd->lsd_feature_rocompat & OBD_ROCOMPAT_IDX_IN_IDIF) {
7605 osd->od_index_in_idif = 1;
7607 osd->od_index_in_idif = 0;
7608 result = osd_register_proc_index_in_idif(osd);
7613 osd->od_index_in_idif = 1;
7617 result = osd_fid_init(env, osd);
7622 static int osd_fid_alloc(const struct lu_env *env, struct obd_export *exp,
7623 struct lu_fid *fid, struct md_op_data *op_data)
7625 struct osd_device *osd = osd_dev(exp->exp_obd->obd_lu_dev);
7627 return seq_client_alloc_fid(env, osd->od_cl_seq, fid);
7630 static const struct lu_object_operations osd_lu_obj_ops = {
7631 .loo_object_init = osd_object_init,
7632 .loo_object_delete = osd_object_delete,
7633 .loo_object_release = osd_object_release,
7634 .loo_object_free = osd_object_free,
7635 .loo_object_print = osd_object_print,
7636 .loo_object_invariant = osd_object_invariant
7639 const struct lu_device_operations osd_lu_ops = {
7640 .ldo_object_alloc = osd_object_alloc,
7641 .ldo_process_config = osd_process_config,
7642 .ldo_recovery_complete = osd_recovery_complete,
7643 .ldo_prepare = osd_prepare,
7646 static const struct lu_device_type_operations osd_device_type_ops = {
7647 .ldto_init = osd_type_init,
7648 .ldto_fini = osd_type_fini,
7650 .ldto_start = osd_type_start,
7651 .ldto_stop = osd_type_stop,
7653 .ldto_device_alloc = osd_device_alloc,
7654 .ldto_device_free = osd_device_free,
7656 .ldto_device_init = osd_device_init,
7657 .ldto_device_fini = osd_device_fini
7660 static struct lu_device_type osd_device_type = {
7661 .ldt_tags = LU_DEVICE_DT,
7662 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
7663 .ldt_ops = &osd_device_type_ops,
7664 .ldt_ctx_tags = LCT_LOCAL,
7667 static int osd_health_check(const struct lu_env *env, struct obd_device *obd)
7669 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
7670 struct super_block *sb = osd_sb(osd);
7672 return (osd->od_mnt == NULL || sb->s_flags & MS_RDONLY);
7676 * lprocfs legacy support.
7678 static struct obd_ops osd_obd_device_ops = {
7679 .o_owner = THIS_MODULE,
7680 .o_connect = osd_obd_connect,
7681 .o_disconnect = osd_obd_disconnect,
7682 .o_fid_alloc = osd_fid_alloc,
7683 .o_health_check = osd_health_check,
7686 static int __init osd_init(void)
7690 CLASSERT(BH_DXLock < sizeof(((struct buffer_head *)0)->b_state) * 8);
7691 #if !defined(CONFIG_DEBUG_MUTEXES) && !defined(CONFIG_DEBUG_SPINLOCK)
7692 /* please, try to keep osd_thread_info smaller than a page */
7693 CLASSERT(sizeof(struct osd_thread_info) <= PAGE_SIZE);
7698 rc = lu_kmem_init(ldiskfs_caches);
7702 #ifdef CONFIG_KALLSYMS
7703 priv_dev_set_rdonly = (void *)kallsyms_lookup_name("dev_set_rdonly");
7704 priv_dev_check_rdonly = (void *)kallsyms_lookup_name("dev_check_rdonly");
7705 /* Clear readonly is unused at this time */
7706 /*priv_dev_clear_rdonly = (void *)kallsyms_lookup_name("dev_clear_rdonly");*/
7709 rc = class_register_type(&osd_obd_device_ops, NULL, true,
7710 lprocfs_osd_module_vars,
7711 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
7713 lu_kmem_fini(ldiskfs_caches);
7717 static void __exit osd_exit(void)
7719 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
7720 lu_kmem_fini(ldiskfs_caches);
7723 MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
7724 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
7725 MODULE_VERSION(LUSTRE_VERSION_STRING);
7726 MODULE_LICENSE("GPL");
7728 module_init(osd_init);
7729 module_exit(osd_exit);