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);
158 return oti->oti_w_locks > 0 && o->oo_owner == env;
162 * Concurrency: doesn't access mutable data
164 static int osd_root_get(const struct lu_env *env,
165 struct dt_device *dev, struct lu_fid *f)
167 lu_local_obj_fid(f, OSD_FS_ROOT_OID);
172 * the following set of functions are used to maintain per-thread
173 * cache of FID->ino mapping. this mechanism is needed to resolve
174 * FID to inode at dt_insert() which in turn stores ino in the
175 * directory entries to keep ldiskfs compatible with ext[34].
176 * due to locking-originated restrictions we can't lookup ino
177 * using LU cache (deadlock is possible). lookup using OI is quite
178 * expensive. so instead we maintain this cache and methods like
179 * dt_create() fill it. so in the majority of cases dt_insert() is
180 * able to find needed mapping in lockless manner.
182 static struct osd_idmap_cache *
183 osd_idc_find(const struct lu_env *env, struct osd_device *osd,
184 const struct lu_fid *fid)
186 struct osd_thread_info *oti = osd_oti_get(env);
187 struct osd_idmap_cache *idc = oti->oti_ins_cache;
190 for (i = 0; i < oti->oti_ins_cache_used; i++) {
191 if (!lu_fid_eq(&idc[i].oic_fid, fid))
193 if (idc[i].oic_dev != osd)
202 static struct osd_idmap_cache *
203 osd_idc_add(const struct lu_env *env, struct osd_device *osd,
204 const struct lu_fid *fid)
206 struct osd_thread_info *oti = osd_oti_get(env);
207 struct osd_idmap_cache *idc;
210 if (unlikely(oti->oti_ins_cache_used >= oti->oti_ins_cache_size)) {
211 i = oti->oti_ins_cache_size * 2;
213 i = OSD_INS_CACHE_SIZE;
214 OBD_ALLOC(idc, sizeof(*idc) * i);
216 return ERR_PTR(-ENOMEM);
217 if (oti->oti_ins_cache != NULL) {
218 memcpy(idc, oti->oti_ins_cache,
219 oti->oti_ins_cache_used * sizeof(*idc));
220 OBD_FREE(oti->oti_ins_cache,
221 oti->oti_ins_cache_used * sizeof(*idc));
223 oti->oti_ins_cache = idc;
224 oti->oti_ins_cache_size = i;
227 idc = oti->oti_ins_cache + oti->oti_ins_cache_used++;
230 idc->oic_lid.oii_ino = 0;
231 idc->oic_lid.oii_gen = 0;
238 * lookup mapping for the given fid in the cache, initialize a
239 * new one if not found. the initialization checks whether the
240 * object is local or remote. for local objects, OI is used to
241 * learn ino/generation. the function is used when the caller
242 * has no information about the object, e.g. at dt_insert().
244 static struct osd_idmap_cache *
245 osd_idc_find_or_init(const struct lu_env *env, struct osd_device *osd,
246 const struct lu_fid *fid)
248 struct osd_idmap_cache *idc;
251 idc = osd_idc_find(env, osd, fid);
252 LASSERT(!IS_ERR(idc));
256 CDEBUG(D_INODE, "%s: FID "DFID" not in the id map cache\n",
257 osd->od_svname, PFID(fid));
259 /* new mapping is needed */
260 idc = osd_idc_add(env, osd, fid);
262 CERROR("%s: FID "DFID" add id map cache failed: %ld\n",
263 osd->od_svname, PFID(fid), PTR_ERR(idc));
268 rc = osd_remote_fid(env, osd, fid);
269 if (unlikely(rc < 0))
273 /* the object is local, lookup in OI */
274 /* XXX: probably cheaper to lookup in LU first? */
275 rc = osd_oi_lookup(osd_oti_get(env), osd, fid,
277 if (unlikely(rc < 0)) {
278 CERROR("can't lookup: rc = %d\n", rc);
282 /* the object is remote */
290 * lookup mapping for given FID and fill it from the given object.
291 * the object is lolcal by definition.
293 static int osd_idc_find_and_init(const struct lu_env *env,
294 struct osd_device *osd,
295 struct osd_object *obj)
297 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
298 struct osd_idmap_cache *idc;
300 idc = osd_idc_find(env, osd, fid);
301 LASSERT(!IS_ERR(idc));
303 if (obj->oo_inode == NULL)
305 if (idc->oic_lid.oii_ino != obj->oo_inode->i_ino) {
306 LASSERT(idc->oic_lid.oii_ino == 0);
307 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
308 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
313 CDEBUG(D_INODE, "%s: FID "DFID" not in the id map cache\n",
314 osd->od_svname, PFID(fid));
316 /* new mapping is needed */
317 idc = osd_idc_add(env, osd, fid);
319 CERROR("%s: FID "DFID" add id map cache failed: %ld\n",
320 osd->od_svname, PFID(fid), PTR_ERR(idc));
324 if (obj->oo_inode != NULL) {
325 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
326 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
332 * OSD object methods.
336 * Concurrency: no concurrent access is possible that early in object
339 static struct lu_object *osd_object_alloc(const struct lu_env *env,
340 const struct lu_object_header *hdr,
343 struct osd_object *mo;
348 struct lu_object_header *h;
349 struct osd_device *o = osd_dev(d);
351 l = &mo->oo_dt.do_lu;
352 if (unlikely(o->od_in_init)) {
359 lu_object_header_init(h);
360 lu_object_init(l, h, d);
361 lu_object_add_top(h, l);
364 dt_object_init(&mo->oo_dt, NULL, d);
365 mo->oo_header = NULL;
368 mo->oo_dt.do_ops = &osd_obj_ops;
369 l->lo_ops = &osd_lu_obj_ops;
370 init_rwsem(&mo->oo_sem);
371 init_rwsem(&mo->oo_ext_idx_sem);
372 spin_lock_init(&mo->oo_guard);
373 INIT_LIST_HEAD(&mo->oo_xattr_list);
379 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
380 struct dentry *dentry, struct lustre_ost_attrs *loa)
384 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
385 (void *)loa, sizeof(*loa));
387 struct lustre_mdt_attrs *lma = &loa->loa_lma;
389 if (rc < sizeof(*lma))
393 lustre_loa_swab(loa, true);
394 /* Check LMA compatibility */
395 if (lma->lma_incompat & ~LMA_INCOMPAT_SUPP) {
396 CWARN("%s: unsupported incompat LMA feature(s) %#x "
397 "for fid = "DFID", ino = %lu\n",
399 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
400 PFID(&lma->lma_self_fid), inode->i_ino);
403 } else if (rc == 0) {
411 * retrieve object from backend ext fs.
413 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
414 struct osd_inode_id *id)
417 struct inode *inode = NULL;
420 * if we look for an inode withing a running
421 * transaction, then we risk to deadlock
422 * osd_dirent_check_repair() breaks this
424 /* LASSERT(current->journal_info == NULL); */
426 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
428 CDEBUG(D_INODE, "no inode: ino = %u, rc = %ld\n",
429 id->oii_ino, PTR_ERR(inode));
430 } else if (id->oii_gen != OSD_OII_NOGEN &&
431 inode->i_generation != id->oii_gen) {
432 CDEBUG(D_INODE, "unmatched inode: ino = %u, oii_gen = %u, "
433 "i_generation = %u\n",
434 id->oii_ino, id->oii_gen, inode->i_generation);
436 inode = ERR_PTR(-ESTALE);
437 } else if (inode->i_nlink == 0) {
439 * due to parallel readdir and unlink,
440 * we can have dead inode here.
442 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
444 inode = ERR_PTR(-ESTALE);
445 } else if (is_bad_inode(inode)) {
446 CWARN("%s: bad inode: ino = %u\n",
447 osd_dev2name(dev), id->oii_ino);
449 inode = ERR_PTR(-ENOENT);
450 } else if ((rc = osd_attach_jinode(inode))) {
454 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
455 if (id->oii_gen == OSD_OII_NOGEN)
456 osd_id_gen(id, inode->i_ino, inode->i_generation);
459 * Do not update file c/mtime in ldiskfs.
460 * NB: we don't have any lock to protect this because we don't
461 * have reference on osd_object now, but contention with
462 * another lookup + attr_set can't happen in the tiny window
463 * between if (...) and set S_NOCMTIME.
465 if (!(inode->i_flags & S_NOCMTIME))
466 inode->i_flags |= S_NOCMTIME;
471 int osd_ldiskfs_add_entry(struct osd_thread_info *info, struct osd_device *osd,
472 handle_t *handle, struct dentry *child,
473 struct inode *inode, struct htree_lock *hlock)
477 rc = __ldiskfs_add_entry(handle, child, inode, hlock);
478 if (rc == -ENOBUFS || rc == -ENOSPC) {
479 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
480 struct inode *parent = child->d_parent->d_inode;
481 struct lu_fid *fid = NULL;
483 rc2 = osd_get_lma(info, parent, child->d_parent, loa);
485 fid = &loa->loa_lma.lma_self_fid;
486 } else if (rc2 == -ENODATA) {
487 if (unlikely(parent == inode->i_sb->s_root->d_inode)) {
488 fid = &info->oti_fid3;
489 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
490 } else if (!osd->od_is_ost && osd->od_index == 0) {
491 fid = &info->oti_fid3;
492 lu_igif_build(fid, parent->i_ino,
493 parent->i_generation);
498 CWARN("%s: directory (inode: %lu, FID: "DFID") %s "
499 "maximum entry limit\n",
500 osd_name(osd), parent->i_ino, PFID(fid),
501 rc == -ENOSPC ? "has reached" : "is approaching");
503 CWARN("%s: directory (inode: %lu, FID: unknown) %s "
504 "maximum entry limit\n",
505 osd_name(osd), parent->i_ino,
506 rc == -ENOSPC ? "has reached" : "is approaching");
508 /* ignore such error now */
518 osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
519 struct osd_inode_id *id, struct lu_fid *fid)
521 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
525 inode = osd_iget(info, dev, id);
529 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
531 *fid = loa->loa_lma.lma_self_fid;
532 } else if (rc == -ENODATA) {
533 if (unlikely(inode == osd_sb(dev)->s_root->d_inode))
534 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
536 lu_igif_build(fid, inode->i_ino, inode->i_generation);
544 static struct inode *osd_iget_check(struct osd_thread_info *info,
545 struct osd_device *dev,
546 const struct lu_fid *fid,
547 struct osd_inode_id *id,
556 * The cached OI mapping is trustable. If we cannot locate the inode
557 * via the cached OI mapping, then return the failure to the caller
558 * directly without further OI checking.
562 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
565 if (!trusted && (rc == -ENOENT || rc == -ESTALE))
568 CDEBUG(D_INODE, "no inode for FID: "DFID", ino = %u, rc = %d\n",
569 PFID(fid), id->oii_ino, rc);
573 if (is_bad_inode(inode)) {
578 CDEBUG(D_INODE, "bad inode for FID: "DFID", ino = %u\n",
579 PFID(fid), id->oii_ino);
583 if (id->oii_gen != OSD_OII_NOGEN &&
584 inode->i_generation != id->oii_gen) {
589 CDEBUG(D_INODE, "unmatched inode for FID: "DFID", ino = %u, "
590 "oii_gen = %u, i_generation = %u\n", PFID(fid),
591 id->oii_ino, id->oii_gen, inode->i_generation);
595 if (inode->i_nlink == 0) {
600 CDEBUG(D_INODE, "stale inode for FID: "DFID", ino = %u\n",
601 PFID(fid), id->oii_ino);
605 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
609 __u32 saved_ino = id->oii_ino;
610 __u32 saved_gen = id->oii_gen;
613 LASSERTF(rc == -ESTALE || rc == -ENOENT, "rc = %d\n", rc);
615 rc = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
617 * XXX: There are four possible cases:
619 * Backup/restore caused the OI invalid.
621 * Someone unlinked the object but NOT removed
622 * the OI mapping, such as mount target device
623 * as ldiskfs, and modify something directly.
625 * Someone just removed the object between the
626 * former oi_lookup and the iget. It is normal.
627 * 4. Other failure cases.
629 * Generally, when the device is mounted, it will
630 * auto check whether the system is restored from
631 * file-level backup or not. We trust such detect
632 * to distinguish the 1st case from the 2nd case:
633 * if the OI files are consistent but may contain
634 * stale OI mappings because of case 2, if iget()
635 * returns -ENOENT or -ESTALE, then it should be
640 * If the OI mapping was in OI file before the
641 * osd_iget_check(), but now, it is disappear,
642 * then it must be removed by race. That is a
648 * It is the OI scrub updated the OI mapping by race.
649 * The new OI mapping must be valid.
651 if (saved_ino != id->oii_ino ||
652 (saved_gen != id->oii_gen && saved_gen != OSD_OII_NOGEN)) {
661 if (dev->od_scrub.os_scrub.os_file.sf_flags &
664 * It still can be the case 2, but we cannot
665 * distinguish it from the case 1. So return
666 * -EREMCHG to block current operation until
667 * OI scrub rebuilt the OI mappings.
676 if (inode->i_generation == id->oii_gen)
681 if (id->oii_gen == OSD_OII_NOGEN)
682 osd_id_gen(id, inode->i_ino, inode->i_generation);
685 * Do not update file c/mtime in ldiskfs.
686 * NB: we don't have any lock to protect this because we don't
687 * have reference on osd_object now, but contention with
688 * another lookup + attr_set can't happen in the tiny window
689 * between if (...) and set S_NOCMTIME.
691 if (!(inode->i_flags & S_NOCMTIME))
692 inode->i_flags |= S_NOCMTIME;
709 * \retval +v: new filter_fid does not contain self-fid
710 * \retval 0: filter_fid_18_23, contains self-fid
711 * \retval -v: other failure cases
713 int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
714 struct dentry *dentry, struct lu_fid *fid)
716 struct filter_fid *ff = &info->oti_ff;
717 struct ost_id *ostid = &info->oti_ostid;
720 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
721 if (rc == sizeof(struct filter_fid_18_23)) {
722 struct filter_fid_18_23 *ff_old = (void *)ff;
724 ostid_set_seq(ostid, le64_to_cpu(ff_old->ff_seq));
725 rc = ostid_set_id(ostid, le64_to_cpu(ff_old->ff_objid));
727 * XXX: use 0 as the index for compatibility, the caller will
728 * handle index related issues when necessary.
731 ostid_to_fid(fid, ostid, 0);
732 } else if (rc >= (int)sizeof(struct filter_fid_24_29)) {
734 } else if (rc >= 0) {
741 static int osd_lma_self_repair(struct osd_thread_info *info,
742 struct osd_device *osd, struct inode *inode,
743 const struct lu_fid *fid, __u32 compat)
748 LASSERT(current->journal_info == NULL);
750 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC,
751 osd_dto_credits_noquota[DTO_XATTR_SET]);
754 CWARN("%s: cannot start journal for lma_self_repair: rc = %d\n",
759 rc = osd_ea_fid_set(info, inode, fid, compat, 0);
761 CWARN("%s: cannot self repair the LMA: rc = %d\n",
763 ldiskfs_journal_stop(jh);
767 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
769 struct osd_thread_info *info = osd_oti_get(env);
770 struct osd_device *osd = osd_obj2dev(obj);
771 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
772 struct lustre_mdt_attrs *lma = &loa->loa_lma;
773 struct inode *inode = obj->oo_inode;
774 struct dentry *dentry = &info->oti_obj_dentry;
775 struct lu_fid *fid = NULL;
776 const struct lu_fid *rfid = lu_object_fid(&obj->oo_dt.do_lu);
781 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
782 (void *)loa, sizeof(*loa));
783 if (rc == -ENODATA && !fid_is_igif(rfid) && osd->od_check_ff) {
784 fid = &lma->lma_self_fid;
785 rc = osd_get_idif(info, inode, dentry, fid);
786 if (rc > 0 || (rc == -ENODATA && osd->od_index_in_idif)) {
788 * For the given OST-object, if it has neither LMA nor
789 * FID in XATTR_NAME_FID, then the given FID (which is
790 * contained in the @obj, from client RPC for locating
791 * the OST-object) is trusted. We use it to generate
794 osd_lma_self_repair(info, osd, inode, rfid,
805 lustre_lma_swab(lma);
806 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
807 (CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT) &&
808 S_ISREG(inode->i_mode)))) {
809 CWARN("%s: unsupported incompat LMA feature(s) %#x for "
810 "fid = "DFID", ino = %lu\n", osd_name(osd),
811 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
812 PFID(rfid), inode->i_ino);
815 fid = &lma->lma_self_fid;
816 if (lma->lma_compat & LMAC_STRIPE_INFO &&
818 obj->oo_pfid_in_lma = 1;
819 if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
821 lu_object_set_agent_entry(&obj->oo_dt.do_lu);
825 if (fid != NULL && unlikely(!lu_fid_eq(rfid, fid))) {
826 if (fid_is_idif(rfid) && fid_is_idif(fid)) {
827 struct ost_id *oi = &info->oti_ostid;
828 struct lu_fid *fid1 = &info->oti_fid3;
829 __u32 idx = fid_idif_ost_idx(rfid);
832 * For old IDIF, the OST index is not part of the IDIF,
833 * Means that different OSTs may have the same IDIFs.
834 * Under such case, we need to make some compatible
835 * check to make sure to trigger OI scrub properly.
837 if (idx != 0 && fid_idif_ost_idx(fid) == 0) {
838 /* Given @rfid is new, LMA is old. */
839 fid_to_ostid(fid, oi);
840 ostid_to_fid(fid1, oi, idx);
841 if (lu_fid_eq(fid1, rfid)) {
842 if (osd->od_index_in_idif)
843 osd_lma_self_repair(info, osd,
857 struct osd_check_lmv_buf {
858 #ifdef HAVE_DIR_CONTEXT
859 /* please keep it as first member */
860 struct dir_context ctx;
862 struct osd_thread_info *oclb_info;
863 struct osd_device *oclb_dev;
864 struct osd_idmap_cache *oclb_oic;
870 * It is called internally by ->readdir() to filter out the
871 * local slave object's FID of the striped directory.
873 * \retval 1 found the local slave's FID
874 * \retval 0 continue to check next item
875 * \retval -ve for failure
877 #ifdef HAVE_FILLDIR_USE_CTX
878 static int osd_stripe_dir_filldir(struct dir_context *buf,
880 static int osd_stripe_dir_filldir(void *buf,
882 const char *name, int namelen,
883 loff_t offset, __u64 ino, unsigned int d_type)
885 struct osd_check_lmv_buf *oclb = (struct osd_check_lmv_buf *)buf;
886 struct osd_thread_info *oti = oclb->oclb_info;
887 struct lu_fid *fid = &oti->oti_fid3;
888 struct osd_inode_id *id = &oti->oti_id3;
889 struct osd_device *dev = oclb->oclb_dev;
890 struct osd_idmap_cache *oic = oclb->oclb_oic;
899 sscanf(name + 1, SFID, RFID(fid));
900 if (!fid_is_sane(fid))
903 if (osd_remote_fid(oti->oti_env, dev, fid))
906 osd_id_gen(id, ino, OSD_OII_NOGEN);
907 inode = osd_iget(oti, dev, id);
909 return PTR_ERR(inode);
912 osd_add_oi_cache(oti, dev, id, fid);
916 osd_oii_insert(dev, oic, true);
917 oclb->oclb_found = true;
923 * When lookup item under striped directory, we need to locate the master
924 * MDT-object of the striped directory firstly, then the client will send
925 * lookup (getattr_by_name) RPC to the MDT with some slave MDT-object's FID
926 * and the item's name. If the system is restored from MDT file level backup,
927 * then before the OI scrub completely built the OI files, the OI mappings of
928 * the master MDT-object and slave MDT-object may be invalid. Usually, it is
929 * not a problem for the master MDT-object. Because when locate the master
930 * MDT-object, we will do name based lookup (for the striped directory itself)
931 * firstly, during such process we can setup the correct OI mapping for the
932 * master MDT-object. But it will be trouble for the slave MDT-object. Because
933 * the client will not trigger name based lookup on the MDT to locate the slave
934 * MDT-object before locating item under the striped directory, then when
935 * osd_fid_lookup(), it will find that the OI mapping for the slave MDT-object
936 * is invalid and does not know what the right OI mapping is, then the MDT has
937 * to return -EINPROGRESS to the client to notify that the OI scrub is rebuiding
938 * the OI file, related OI mapping is unknown yet, please try again later. And
939 * then client will re-try the RPC again and again until related OI mapping has
940 * been updated. That is quite inefficient.
942 * To resolve above trouble, we will handle it as the following two cases:
944 * 1) The slave MDT-object and the master MDT-object are on different MDTs.
945 * It is relative easy. Be as one of remote MDT-objects, the slave MDT-object
946 * is linked under /REMOTE_PARENT_DIR with the name of its FID string.
947 * We can locate the slave MDT-object via lookup the /REMOTE_PARENT_DIR
948 * directly. Please check osd_fid_lookup().
950 * 2) The slave MDT-object and the master MDT-object reside on the same MDT.
951 * Under such case, during lookup the master MDT-object, we will lookup the
952 * slave MDT-object via readdir against the master MDT-object, because the
953 * slave MDT-objects information are stored as sub-directories with the name
954 * "${FID}:${index}". Then when find the local slave MDT-object, its OI
955 * mapping will be recorded. Then subsequent osd_fid_lookup() will know
956 * the correct OI mapping for the slave MDT-object.
958 static int osd_check_lmv(struct osd_thread_info *oti, struct osd_device *dev,
959 struct inode *inode, struct osd_idmap_cache *oic)
961 struct lu_buf *buf = &oti->oti_big_buf;
962 struct dentry *dentry = &oti->oti_obj_dentry;
963 struct file *filp = &oti->oti_file;
964 const struct file_operations *fops;
965 struct lmv_mds_md_v1 *lmv1;
966 struct osd_check_lmv_buf oclb = {
967 #ifdef HAVE_DIR_CONTEXT
968 .ctx.actor = osd_stripe_dir_filldir,
980 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, buf->lb_buf,
983 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, NULL, 0);
985 lu_buf_realloc(buf, rc);
986 if (buf->lb_buf == NULL)
987 GOTO(out, rc = -ENOMEM);
993 if (unlikely(rc == 0 || rc == -ENODATA))
999 if (unlikely(buf->lb_buf == NULL)) {
1000 lu_buf_realloc(buf, rc);
1001 if (buf->lb_buf == NULL)
1002 GOTO(out, rc = -ENOMEM);
1008 if (le32_to_cpu(lmv1->lmv_magic) != LMV_MAGIC_V1)
1011 fops = inode->i_fop;
1012 dentry->d_inode = inode;
1013 dentry->d_sb = inode->i_sb;
1015 filp->f_path.dentry = dentry;
1016 filp->f_mode = FMODE_64BITHASH;
1017 filp->f_mapping = inode->i_mapping;
1019 filp->private_data = NULL;
1020 set_file_inode(filp, inode);
1023 oclb.oclb_items = 0;
1024 #ifdef HAVE_DIR_CONTEXT
1025 oclb.ctx.pos = filp->f_pos;
1026 #ifdef HAVE_ITERATE_SHARED
1027 rc = fops->iterate_shared(filp, &oclb.ctx);
1029 rc = fops->iterate(filp, &oclb.ctx);
1031 filp->f_pos = oclb.ctx.pos;
1033 rc = fops->readdir(filp, &oclb, osd_stripe_dir_filldir);
1035 } while (rc >= 0 && oclb.oclb_items > 0 && !oclb.oclb_found &&
1036 filp->f_pos != LDISKFS_HTREE_EOF_64BIT);
1037 fops->release(inode, filp);
1041 CDEBUG(D_LFSCK, "%s: fail to check LMV EA, inode = %lu/%u,"
1042 DFID": rc = %d\n", osd_ino2name(inode),
1043 inode->i_ino, inode->i_generation,
1044 PFID(&oic->oic_fid), rc);
1051 static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
1052 const struct lu_fid *fid,
1053 const struct lu_object_conf *conf)
1055 struct osd_thread_info *info;
1056 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
1057 struct osd_device *dev;
1058 struct osd_idmap_cache *oic;
1059 struct osd_inode_id *id;
1060 struct inode *inode = NULL;
1061 struct lustre_scrub *scrub;
1062 struct scrub_file *sf;
1063 __u32 flags = SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT | SS_AUTO_FULL;
1068 bool remote = false;
1069 bool trusted = true;
1070 bool updated = false;
1071 bool checked = false;
1075 LINVRNT(osd_invariant(obj));
1076 LASSERT(obj->oo_inode == NULL);
1077 LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID"\n", PFID(fid));
1079 dev = osd_dev(ldev);
1080 scrub = &dev->od_scrub.os_scrub;
1081 sf = &scrub->os_file;
1082 info = osd_oti_get(env);
1084 oic = &info->oti_cache;
1086 if (OBD_FAIL_CHECK(OBD_FAIL_SRV_ENOENT))
1090 * For the object is created as locking anchor, or for the object to
1091 * be created on disk. No need to osd_oi_lookup() at here because FID
1092 * shouldn't never be re-used, if it's really a duplicate FID from
1093 * unexpected reason, we should be able to detect it later by calling
1094 * do_create->osd_oi_insert().
1096 if (conf && conf->loc_flags & LOC_F_NEW)
1097 GOTO(out, result = 0);
1099 /* Search order: 1. per-thread cache. */
1100 if (lu_fid_eq(fid, &oic->oic_fid) && likely(oic->oic_dev == dev)) {
1106 if (!list_empty(&scrub->os_inconsistent_items)) {
1107 /* Search order: 2. OI scrub pending list. */
1108 result = osd_oii_lookup(dev, fid, id);
1114 * The OI mapping in the OI file can be updated by the OI scrub
1115 * when we locate the inode via FID. So it may be not trustable.
1119 /* Search order: 3. OI files. */
1120 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1121 if (result == -ENOENT) {
1122 if (!(fid_is_norm(fid) || fid_is_igif(fid)) ||
1123 fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) ||
1124 !ldiskfs_test_bit(osd_oi_fid2idx(dev, fid),
1126 GOTO(out, result = 0);
1135 obj->oo_inode = NULL;
1136 /* for later passes through checks, not true on first pass */
1137 if (!IS_ERR_OR_NULL(inode))
1140 inode = osd_iget_check(info, dev, fid, id, trusted);
1141 if (!IS_ERR(inode)) {
1142 obj->oo_inode = inode;
1150 result = PTR_ERR(inode);
1151 if (result == -ENOENT || result == -ESTALE)
1152 GOTO(out, result = 0);
1154 if (result != -EREMCHG)
1159 * We still have chance to get the valid inode: for the
1160 * object which is referenced by remote name entry, the
1161 * object on the local MDT will be linked under the dir
1162 * of "/REMOTE_PARENT_DIR" with its FID string as name.
1164 * We do not know whether the object for the given FID
1165 * is referenced by some remote name entry or not, and
1166 * especially for DNE II, a multiple-linked object may
1167 * have many name entries reside on many MDTs.
1169 * To simplify the operation, OSD will not distinguish
1170 * more, just lookup "/REMOTE_PARENT_DIR". Usually, it
1171 * only happened for the RPC from other MDT during the
1172 * OI scrub, or for the client side RPC with FID only,
1173 * such as FID to path, or from old connected client.
1176 rc1 = osd_lookup_in_remote_parent(info, dev, fid, id);
1180 flags |= SS_AUTO_PARTIAL;
1181 flags &= ~SS_AUTO_FULL;
1186 if (thread_is_running(&scrub->os_thread)) {
1187 if (scrub->os_partial_scan && !scrub->os_in_join)
1190 if (IS_ERR_OR_NULL(inode) || result)
1191 GOTO(out, result = -EINPROGRESS);
1194 LASSERT(obj->oo_inode == inode);
1196 osd_add_oi_cache(info, dev, id, fid);
1197 osd_oii_insert(dev, oic, true);
1201 if (dev->od_auto_scrub_interval == AS_NEVER) {
1203 GOTO(out, result = -EREMCHG);
1206 LASSERT(obj->oo_inode == inode);
1208 osd_add_oi_cache(info, dev, id, fid);
1213 rc1 = osd_scrub_start(env, dev, flags);
1214 LCONSOLE_WARN("%s: trigger OI scrub by RPC for the " DFID" with flags "
1215 "0x%x, rc = %d\n", osd_name(dev), PFID(fid), flags, rc1);
1216 if (rc1 && rc1 != -EALREADY)
1217 GOTO(out, result = -EREMCHG);
1219 if (IS_ERR_OR_NULL(inode) || result)
1220 GOTO(out, result = -EINPROGRESS);
1223 LASSERT(obj->oo_inode == inode);
1225 osd_add_oi_cache(info, dev, id, fid);
1226 osd_oii_insert(dev, oic, true);
1231 if (unlikely(obj->oo_header))
1234 result = osd_check_lma(env, obj);
1238 LASSERTF(id->oii_ino == inode->i_ino &&
1239 id->oii_gen == inode->i_generation,
1240 "locate wrong inode for FID: "DFID", %u/%u => %ld/%u\n",
1241 PFID(fid), id->oii_ino, id->oii_gen,
1242 inode->i_ino, inode->i_generation);
1244 saved_ino = inode->i_ino;
1245 saved_gen = inode->i_generation;
1247 if (unlikely(result == -ENODATA)) {
1249 * If the OI scrub updated the OI mapping by race, it
1250 * must be valid. Trust the inode that has no LMA EA.
1255 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1258 * The OI mapping is still there, the inode is still
1259 * valid. It is just becaues the inode has no LMA EA.
1261 if (saved_ino == id->oii_ino &&
1262 saved_gen == id->oii_gen)
1266 * It is the OI scrub updated the OI mapping by race.
1267 * The new OI mapping must be valid.
1275 * "result == -ENOENT" means that the OI mappinghas been
1276 * removed by race, so the inode belongs to other object.
1278 * Others error can be returned directly.
1280 if (result == -ENOENT) {
1283 obj->oo_inode = NULL;
1288 if (result != -EREMCHG)
1293 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1295 * "result == -ENOENT" means the cached OI mapping has been removed
1296 * from the OI file by race, above inode belongs to other object.
1298 if (result == -ENOENT) {
1301 obj->oo_inode = NULL;
1302 GOTO(out, result = 0);
1308 if (saved_ino == id->oii_ino && saved_gen == id->oii_gen) {
1314 * It is the OI scrub updated the OI mapping by race.
1315 * The new OI mapping must be valid.
1323 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
1324 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
1326 result = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
1328 if (lma->lma_compat & LMAC_STRIPE_INFO &&
1330 obj->oo_pfid_in_lma = 1;
1331 if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
1333 lu_object_set_agent_entry(&obj->oo_dt.do_lu);
1334 } else if (result != -ENODATA) {
1339 obj->oo_compat_dot_created = 1;
1340 obj->oo_compat_dotdot_created = 1;
1342 if (S_ISDIR(inode->i_mode) &&
1343 (flags & SS_AUTO_PARTIAL || sf->sf_status == SS_SCANNING))
1344 osd_check_lmv(info, dev, inode, oic);
1346 result = osd_attach_jinode(inode);
1351 GOTO(out, result = 0);
1353 LASSERT(!obj->oo_hl_head);
1354 obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
1356 GOTO(out, result = (!obj->oo_hl_head ? -ENOMEM : 0));
1359 if (result || !obj->oo_inode) {
1360 if (!IS_ERR_OR_NULL(inode))
1363 obj->oo_inode = NULL;
1365 fid_zero(&oic->oic_fid);
1368 LINVRNT(osd_invariant(obj));
1373 * Concurrency: shouldn't matter.
1375 static void osd_object_init0(struct osd_object *obj)
1377 LASSERT(obj->oo_inode != NULL);
1378 obj->oo_dt.do_body_ops = &osd_body_ops;
1379 obj->oo_dt.do_lu.lo_header->loh_attr |=
1380 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
1384 * Concurrency: no concurrent access is possible that early in object
1387 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
1388 const struct lu_object_conf *conf)
1390 struct osd_object *obj = osd_obj(l);
1393 LINVRNT(osd_invariant(obj));
1395 if (fid_is_otable_it(&l->lo_header->loh_fid)) {
1396 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
1397 l->lo_header->loh_attr |= LOHA_EXISTS;
1401 result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
1402 obj->oo_dt.do_body_ops = &osd_body_ops_new;
1403 if (result == 0 && obj->oo_inode != NULL) {
1404 struct osd_thread_info *oti = osd_oti_get(env);
1405 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
1407 osd_object_init0(obj);
1408 if (unlikely(obj->oo_header))
1411 result = osd_get_lma(oti, obj->oo_inode,
1412 &oti->oti_obj_dentry, loa);
1415 * Convert LMAI flags to lustre LMA flags
1416 * and cache it to oo_lma_flags
1419 lma_to_lustre_flags(loa->loa_lma.lma_incompat);
1420 } else if (result == -ENODATA) {
1425 LINVRNT(osd_invariant(obj));
1430 * The first part of oxe_buf is xattr name, and is '\0' terminated.
1431 * The left part is for value, binary mode.
1433 struct osd_xattr_entry {
1434 struct list_head oxe_list;
1438 struct rcu_head oxe_rcu;
1442 static int osd_oxc_get(struct osd_object *obj, const char *name,
1445 struct osd_xattr_entry *tmp;
1446 struct osd_xattr_entry *oxe = NULL;
1447 size_t namelen = strlen(name);
1453 list_for_each_entry_rcu(tmp, &obj->oo_xattr_list, oxe_list) {
1454 if (namelen == tmp->oxe_namelen &&
1455 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1462 GOTO(out, rc = -ENOENT);
1464 if (!oxe->oxe_exist)
1465 GOTO(out, rc = -ENODATA);
1468 rc = oxe->oxe_len - sizeof(*oxe) - oxe->oxe_namelen - 1;
1471 if (buf->lb_buf == NULL)
1474 if (buf->lb_len < rc)
1475 GOTO(out, rc = -ERANGE);
1477 memcpy(buf->lb_buf, &oxe->oxe_buf[namelen + 1], rc);
1485 static void osd_oxc_free(struct rcu_head *head)
1487 struct osd_xattr_entry *oxe;
1489 oxe = container_of(head, struct osd_xattr_entry, oxe_rcu);
1490 OBD_FREE(oxe, oxe->oxe_len);
1493 static void osd_oxc_add(struct osd_object *obj, const char *name,
1494 const char *buf, int buflen)
1496 struct osd_xattr_entry *oxe;
1497 struct osd_xattr_entry *old = NULL;
1498 struct osd_xattr_entry *tmp;
1499 size_t namelen = strlen(name);
1500 size_t len = sizeof(*oxe) + namelen + 1 + buflen;
1502 OBD_ALLOC(oxe, len);
1506 INIT_LIST_HEAD(&oxe->oxe_list);
1508 oxe->oxe_namelen = namelen;
1509 memcpy(oxe->oxe_buf, name, namelen);
1511 LASSERT(buf != NULL);
1512 memcpy(oxe->oxe_buf + namelen + 1, buf, buflen);
1513 oxe->oxe_exist = true;
1515 oxe->oxe_exist = false;
1518 /* this should be rarely called, just remove old and add new */
1519 spin_lock(&obj->oo_guard);
1520 list_for_each_entry(tmp, &obj->oo_xattr_list, oxe_list) {
1521 if (namelen == tmp->oxe_namelen &&
1522 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1528 list_replace_rcu(&old->oxe_list, &oxe->oxe_list);
1529 call_rcu(&old->oxe_rcu, osd_oxc_free);
1531 list_add_tail_rcu(&oxe->oxe_list, &obj->oo_xattr_list);
1533 spin_unlock(&obj->oo_guard);
1536 static void osd_oxc_del(struct osd_object *obj, const char *name)
1538 struct osd_xattr_entry *oxe;
1539 size_t namelen = strlen(name);
1541 spin_lock(&obj->oo_guard);
1542 list_for_each_entry(oxe, &obj->oo_xattr_list, oxe_list) {
1543 if (namelen == oxe->oxe_namelen &&
1544 strncmp(name, oxe->oxe_buf, namelen) == 0) {
1545 list_del_rcu(&oxe->oxe_list);
1546 call_rcu(&oxe->oxe_rcu, osd_oxc_free);
1550 spin_unlock(&obj->oo_guard);
1553 static void osd_oxc_fini(struct osd_object *obj)
1555 struct osd_xattr_entry *oxe, *next;
1557 list_for_each_entry_safe(oxe, next, &obj->oo_xattr_list, oxe_list) {
1558 list_del(&oxe->oxe_list);
1559 OBD_FREE(oxe, oxe->oxe_len);
1564 * Concurrency: no concurrent access is possible that late in object
1567 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
1569 struct osd_object *obj = osd_obj(l);
1570 struct lu_object_header *h = obj->oo_header;
1572 LINVRNT(osd_invariant(obj));
1575 dt_object_fini(&obj->oo_dt);
1576 if (obj->oo_hl_head != NULL)
1577 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
1580 lu_object_header_fini(h);
1586 * Concurrency: no concurrent access is possible that late in object
1589 static void osd_index_fini(struct osd_object *o)
1591 struct iam_container *bag;
1593 if (o->oo_dir != NULL) {
1594 bag = &o->oo_dir->od_container;
1595 if (o->oo_inode != NULL) {
1596 if (bag->ic_object == o->oo_inode)
1597 iam_container_fini(bag);
1599 OBD_FREE_PTR(o->oo_dir);
1605 * Concurrency: no concurrent access is possible that late in object
1606 * life-cycle (for all existing callers, that is. New callers have to provide
1607 * their own locking.)
1609 static int osd_inode_unlinked(const struct inode *inode)
1611 return inode->i_nlink == 0;
1615 OSD_TXN_OI_DELETE_CREDITS = 20,
1616 OSD_TXN_INODE_DELETE_CREDITS = 20
1623 #if OSD_THANDLE_STATS
1625 * Set time when the handle is allocated
1627 static void osd_th_alloced(struct osd_thandle *oth)
1629 oth->oth_alloced = ktime_get();
1633 * Set time when the handle started
1635 static void osd_th_started(struct osd_thandle *oth)
1637 oth->oth_started = ktime_get();
1641 * Check whether the we deal with this handle for too long.
1643 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
1644 ktime_t alloced, ktime_t started,
1647 ktime_t now = ktime_get();
1649 LASSERT(dev != NULL);
1651 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
1652 ktime_us_delta(started, alloced));
1653 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
1654 ktime_us_delta(closed, started));
1655 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
1656 ktime_us_delta(now, closed));
1658 if (ktime_before(ktime_add_ns(alloced, 30 * NSEC_PER_SEC), now)) {
1659 CWARN("transaction handle %p was open for too long: now %lld, alloced %lld, started %lld, closed %lld\n",
1660 oth, now, alloced, started, closed);
1661 libcfs_debug_dumpstack(NULL);
1665 #define OSD_CHECK_SLOW_TH(oth, dev, expr) \
1667 ktime_t __closed = ktime_get(); \
1668 ktime_t __alloced = oth->oth_alloced; \
1669 ktime_t __started = oth->oth_started; \
1672 __osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
1675 #else /* OSD_THANDLE_STATS */
1677 #define osd_th_alloced(h) do {} while(0)
1678 #define osd_th_started(h) do {} while(0)
1679 #define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
1681 #endif /* OSD_THANDLE_STATS */
1684 * Concurrency: doesn't access mutable data.
1686 static int osd_param_is_not_sane(const struct osd_device *dev,
1687 const struct thandle *th)
1689 struct osd_thandle *oh = container_of(th, typeof(*oh), ot_super);
1691 return oh->ot_credits > osd_transaction_size(dev);
1695 * Concurrency: shouldn't matter.
1697 static void osd_trans_commit_cb(struct super_block *sb,
1698 struct ldiskfs_journal_cb_entry *jcb, int error)
1700 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
1701 struct thandle *th = &oh->ot_super;
1702 struct lu_device *lud = &th->th_dev->dd_lu_dev;
1703 struct dt_txn_commit_cb *dcb, *tmp;
1705 LASSERT(oh->ot_handle == NULL);
1708 CERROR("transaction @0x%p commit error: %d\n", th, error);
1710 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_DELAY_TRANS, 40);
1711 /* call per-transaction callbacks if any */
1712 list_for_each_entry_safe(dcb, tmp, &oh->ot_commit_dcb_list,
1714 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1715 "commit callback entry: magic=%x name='%s'\n",
1716 dcb->dcb_magic, dcb->dcb_name);
1717 list_del_init(&dcb->dcb_linkage);
1718 dcb->dcb_func(NULL, th, dcb, error);
1721 lu_ref_del_at(&lud->ld_reference, &oh->ot_dev_link, "osd-tx", th);
1728 #ifndef HAVE_SB_START_WRITE
1729 # define sb_start_write(sb) do {} while (0)
1730 # define sb_end_write(sb) do {} while (0)
1733 static struct thandle *osd_trans_create(const struct lu_env *env,
1734 struct dt_device *d)
1736 struct osd_thread_info *oti = osd_oti_get(env);
1737 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1738 struct osd_thandle *oh;
1744 CERROR("%s: someone try to start transaction under "
1745 "readonly mode, should be disabled.\n",
1746 osd_name(osd_dt_dev(d)));
1748 RETURN(ERR_PTR(-EROFS));
1751 /* on pending IO in this thread should left from prev. request */
1752 LASSERT(atomic_read(&iobuf->dr_numreqs) == 0);
1754 sb_start_write(osd_sb(osd_dt_dev(d)));
1756 OBD_ALLOC_GFP(oh, sizeof(*oh), GFP_NOFS);
1758 sb_end_write(osd_sb(osd_dt_dev(d)));
1759 RETURN(ERR_PTR(-ENOMEM));
1762 oh->ot_quota_trans = &oti->oti_quota_trans;
1763 memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
1768 INIT_LIST_HEAD(&oh->ot_commit_dcb_list);
1769 INIT_LIST_HEAD(&oh->ot_stop_dcb_list);
1770 INIT_LIST_HEAD(&oh->ot_trunc_locks);
1773 memset(oti->oti_declare_ops, 0,
1774 sizeof(oti->oti_declare_ops));
1775 memset(oti->oti_declare_ops_cred, 0,
1776 sizeof(oti->oti_declare_ops_cred));
1777 memset(oti->oti_declare_ops_used, 0,
1778 sizeof(oti->oti_declare_ops_used));
1780 oti->oti_ins_cache_depth++;
1785 void osd_trans_dump_creds(const struct lu_env *env, struct thandle *th)
1787 struct osd_thread_info *oti = osd_oti_get(env);
1788 struct osd_thandle *oh;
1790 oh = container_of0(th, struct osd_thandle, ot_super);
1791 LASSERT(oh != NULL);
1793 CWARN(" create: %u/%u/%u, destroy: %u/%u/%u\n",
1794 oti->oti_declare_ops[OSD_OT_CREATE],
1795 oti->oti_declare_ops_cred[OSD_OT_CREATE],
1796 oti->oti_declare_ops_used[OSD_OT_CREATE],
1797 oti->oti_declare_ops[OSD_OT_DESTROY],
1798 oti->oti_declare_ops_cred[OSD_OT_DESTROY],
1799 oti->oti_declare_ops_used[OSD_OT_DESTROY]);
1800 CWARN(" attr_set: %u/%u/%u, xattr_set: %u/%u/%u\n",
1801 oti->oti_declare_ops[OSD_OT_ATTR_SET],
1802 oti->oti_declare_ops_cred[OSD_OT_ATTR_SET],
1803 oti->oti_declare_ops_used[OSD_OT_ATTR_SET],
1804 oti->oti_declare_ops[OSD_OT_XATTR_SET],
1805 oti->oti_declare_ops_cred[OSD_OT_XATTR_SET],
1806 oti->oti_declare_ops_used[OSD_OT_XATTR_SET]);
1807 CWARN(" write: %u/%u/%u, punch: %u/%u/%u, quota %u/%u/%u\n",
1808 oti->oti_declare_ops[OSD_OT_WRITE],
1809 oti->oti_declare_ops_cred[OSD_OT_WRITE],
1810 oti->oti_declare_ops_used[OSD_OT_WRITE],
1811 oti->oti_declare_ops[OSD_OT_PUNCH],
1812 oti->oti_declare_ops_cred[OSD_OT_PUNCH],
1813 oti->oti_declare_ops_used[OSD_OT_PUNCH],
1814 oti->oti_declare_ops[OSD_OT_QUOTA],
1815 oti->oti_declare_ops_cred[OSD_OT_QUOTA],
1816 oti->oti_declare_ops_used[OSD_OT_QUOTA]);
1817 CWARN(" insert: %u/%u/%u, delete: %u/%u/%u\n",
1818 oti->oti_declare_ops[OSD_OT_INSERT],
1819 oti->oti_declare_ops_cred[OSD_OT_INSERT],
1820 oti->oti_declare_ops_used[OSD_OT_INSERT],
1821 oti->oti_declare_ops[OSD_OT_DELETE],
1822 oti->oti_declare_ops_cred[OSD_OT_DELETE],
1823 oti->oti_declare_ops_used[OSD_OT_DELETE]);
1824 CWARN(" ref_add: %u/%u/%u, ref_del: %u/%u/%u\n",
1825 oti->oti_declare_ops[OSD_OT_REF_ADD],
1826 oti->oti_declare_ops_cred[OSD_OT_REF_ADD],
1827 oti->oti_declare_ops_used[OSD_OT_REF_ADD],
1828 oti->oti_declare_ops[OSD_OT_REF_DEL],
1829 oti->oti_declare_ops_cred[OSD_OT_REF_DEL],
1830 oti->oti_declare_ops_used[OSD_OT_REF_DEL]);
1834 * Concurrency: shouldn't matter.
1836 static int osd_trans_start(const struct lu_env *env, struct dt_device *d,
1839 struct osd_thread_info *oti = osd_oti_get(env);
1840 struct osd_device *dev = osd_dt_dev(d);
1842 struct osd_thandle *oh;
1847 LASSERT(current->journal_info == NULL);
1849 oh = container_of0(th, struct osd_thandle, ot_super);
1850 LASSERT(oh != NULL);
1851 LASSERT(oh->ot_handle == NULL);
1853 rc = dt_txn_hook_start(env, d, th);
1857 if (unlikely(osd_param_is_not_sane(dev, th))) {
1858 static unsigned long last_printed;
1859 static int last_credits;
1862 * don't make noise on a tiny testing systems
1863 * actual credits misuse will be caught anyway
1865 if (last_credits != oh->ot_credits &&
1866 time_after(jiffies, last_printed +
1867 msecs_to_jiffies(60 * MSEC_PER_SEC)) &&
1868 osd_transaction_size(dev) > 512) {
1869 CWARN("%s: credits %u > trans_max %u\n", osd_name(dev),
1870 oh->ot_credits, osd_transaction_size(dev));
1871 osd_trans_dump_creds(env, th);
1872 libcfs_debug_dumpstack(NULL);
1873 last_credits = oh->ot_credits;
1874 last_printed = jiffies;
1877 * XXX Limit the credits to 'max_transaction_buffers', and
1878 * let the underlying filesystem to catch the error if
1879 * we really need so many credits.
1881 * This should be removed when we can calculate the
1882 * credits precisely.
1884 oh->ot_credits = osd_transaction_size(dev);
1885 } else if (ldiskfs_track_declares_assert != 0) {
1887 * reserve few credits to prevent an assertion in JBD
1888 * our debugging mechanism will be able to detected
1889 * overuse. this can help to debug single-update
1892 oh->ot_credits += 10;
1893 if (unlikely(osd_param_is_not_sane(dev, th)))
1894 oh->ot_credits = osd_transaction_size(dev);
1897 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_TXN_START))
1898 GOTO(out, rc = -EIO);
1901 * XXX temporary stuff. Some abstraction layer should
1904 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, oh->ot_credits);
1908 LASSERT(oti->oti_txns == 0);
1910 lu_device_get(&d->dd_lu_dev);
1911 lu_ref_add_at(&d->dd_lu_dev.ld_reference, &oh->ot_dev_link,
1922 static int osd_seq_exists(const struct lu_env *env,
1923 struct osd_device *osd, u64 seq)
1925 struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
1926 struct seq_server_site *ss = osd_seq_site(osd);
1931 LASSERT(ss != NULL);
1932 LASSERT(ss->ss_server_fld != NULL);
1934 rc = osd_fld_lookup(env, osd, seq, range);
1937 CERROR("%s: can't lookup FLD sequence %#llx: rc = %d\n",
1938 osd_name(osd), seq, rc);
1942 RETURN(ss->ss_node_id == range->lsr_index);
1945 static void osd_trans_stop_cb(struct osd_thandle *oth, int result)
1947 struct dt_txn_commit_cb *dcb;
1948 struct dt_txn_commit_cb *tmp;
1950 /* call per-transaction stop callbacks if any */
1951 list_for_each_entry_safe(dcb, tmp, &oth->ot_stop_dcb_list,
1953 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1954 "commit callback entry: magic=%x name='%s'\n",
1955 dcb->dcb_magic, dcb->dcb_name);
1956 list_del_init(&dcb->dcb_linkage);
1957 dcb->dcb_func(NULL, &oth->ot_super, dcb, result);
1962 * Concurrency: shouldn't matter.
1964 static int osd_trans_stop(const struct lu_env *env, struct dt_device *dt,
1967 struct osd_thread_info *oti = osd_oti_get(env);
1968 struct osd_thandle *oh;
1969 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1970 struct osd_device *osd = osd_dt_dev(th->th_dev);
1971 struct qsd_instance *qsd = osd_def_qsd(osd);
1972 struct lquota_trans *qtrans;
1973 struct list_head truncates = LIST_HEAD_INIT(truncates);
1974 int rc = 0, remove_agents = 0;
1978 oh = container_of0(th, struct osd_thandle, ot_super);
1980 remove_agents = oh->ot_remove_agents;
1982 qtrans = oh->ot_quota_trans;
1983 oh->ot_quota_trans = NULL;
1985 /* move locks to local list, stop tx, execute truncates */
1986 list_splice(&oh->ot_trunc_locks, &truncates);
1988 if (oh->ot_handle != NULL) {
1991 handle_t *hdl = oh->ot_handle;
1994 * add commit callback
1995 * notice we don't do this in osd_trans_start()
1996 * as underlying transaction can change during truncate
1998 ldiskfs_journal_callback_add(hdl, osd_trans_commit_cb,
2001 LASSERT(oti->oti_txns == 1);
2004 rc = dt_txn_hook_stop(env, th);
2006 CERROR("%s: failed in transaction hook: rc = %d\n",
2009 osd_trans_stop_cb(oh, rc);
2010 /* hook functions might modify th_sync */
2011 hdl->h_sync = th->th_sync;
2013 oh->ot_handle = NULL;
2014 OSD_CHECK_SLOW_TH(oh, osd, rc2 = ldiskfs_journal_stop(hdl));
2016 CERROR("%s: failed to stop transaction: rc = %d\n",
2017 osd_name(osd), rc2);
2021 osd_process_truncates(&truncates);
2023 osd_trans_stop_cb(oh, th->th_result);
2027 osd_trunc_unlock_all(&truncates);
2029 /* inform the quota slave device that the transaction is stopping */
2030 qsd_op_end(env, qsd, qtrans);
2033 * as we want IO to journal and data IO be concurrent, we don't block
2034 * awaiting data IO completion in osd_do_bio(), instead we wait here
2035 * once transaction is submitted to the journal. all reqular requests
2036 * don't do direct IO (except read/write), thus this wait_event becomes
2039 * IMPORTANT: we have to wait till any IO submited by the thread is
2040 * completed otherwise iobuf may be corrupted by different request
2042 wait_event(iobuf->dr_wait,
2043 atomic_read(&iobuf->dr_numreqs) == 0);
2044 osd_fini_iobuf(osd, iobuf);
2046 rc = iobuf->dr_error;
2048 if (unlikely(remove_agents != 0))
2049 osd_process_scheduled_agent_removals(env, osd);
2051 oti->oti_ins_cache_depth--;
2052 /* reset OI cache for safety */
2053 if (oti->oti_ins_cache_depth == 0)
2054 oti->oti_ins_cache_used = 0;
2056 sb_end_write(osd_sb(osd));
2061 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
2063 struct osd_thandle *oh = container_of0(th, struct osd_thandle,
2066 LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
2067 LASSERT(&dcb->dcb_func != NULL);
2068 if (dcb->dcb_flags & DCB_TRANS_STOP)
2069 list_add(&dcb->dcb_linkage, &oh->ot_stop_dcb_list);
2071 list_add(&dcb->dcb_linkage, &oh->ot_commit_dcb_list);
2077 * Called just before object is freed. Releases all resources except for
2078 * object itself (that is released by osd_object_free()).
2080 * Concurrency: no concurrent access is possible that late in object
2083 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
2085 struct osd_object *obj = osd_obj(l);
2086 struct qsd_instance *qsd = osd_def_qsd(osd_obj2dev(obj));
2087 struct inode *inode = obj->oo_inode;
2092 LINVRNT(osd_invariant(obj));
2095 * If object is unlinked remove fid->ino mapping from object index.
2098 osd_index_fini(obj);
2103 uid = i_uid_read(inode);
2104 gid = i_gid_read(inode);
2105 projid = i_projid_read(inode);
2107 obj->oo_inode = NULL;
2110 /* do not rebalance quota if the caller needs to release memory
2111 * otherwise qsd_refresh_usage() may went into a new ldiskfs
2112 * transaction and risk to deadlock - LU-12178 */
2113 if (current->flags & (PF_MEMALLOC | PF_KSWAPD))
2116 if (!obj->oo_header && qsd) {
2117 struct osd_thread_info *info = osd_oti_get(env);
2118 struct lquota_id_info *qi = &info->oti_qi;
2120 /* Release granted quota to master if necessary */
2121 qi->lqi_id.qid_uid = uid;
2122 qsd_op_adjust(env, qsd, &qi->lqi_id, USRQUOTA);
2124 qi->lqi_id.qid_uid = gid;
2125 qsd_op_adjust(env, qsd, &qi->lqi_id, GRPQUOTA);
2127 qi->lqi_id.qid_uid = projid;
2128 qsd_op_adjust(env, qsd, &qi->lqi_id, PRJQUOTA);
2133 * Concurrency: ->loo_object_release() is called under site spin-lock.
2135 static void osd_object_release(const struct lu_env *env,
2136 struct lu_object *l)
2138 struct osd_object *o = osd_obj(l);
2141 * nobody should be releasing a non-destroyed object with nlink=0
2142 * the API allows this, but ldiskfs doesn't like and then report
2143 * this inode as deleted
2145 LASSERT(!(o->oo_destroyed == 0 && o->oo_inode &&
2146 o->oo_inode->i_nlink == 0));
2150 * Concurrency: shouldn't matter.
2152 static int osd_object_print(const struct lu_env *env, void *cookie,
2153 lu_printer_t p, const struct lu_object *l)
2155 struct osd_object *o = osd_obj(l);
2156 struct iam_descr *d;
2158 if (o->oo_dir != NULL)
2159 d = o->oo_dir->od_container.ic_descr;
2162 return (*p)(env, cookie,
2163 LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
2165 o->oo_inode ? o->oo_inode->i_ino : 0UL,
2166 o->oo_inode ? o->oo_inode->i_generation : 0,
2167 d ? d->id_ops->id_name : "plain");
2171 * Concurrency: shouldn't matter.
2173 int osd_statfs(const struct lu_env *env, struct dt_device *d,
2174 struct obd_statfs *sfs)
2176 struct osd_device *osd = osd_dt_dev(d);
2177 struct super_block *sb = osd_sb(osd);
2178 struct kstatfs *ksfs;
2182 if (unlikely(osd->od_mnt == NULL))
2183 return -EINPROGRESS;
2185 /* osd_lproc.c call this without env, allocate ksfs for that case */
2186 if (unlikely(env == NULL)) {
2187 OBD_ALLOC_PTR(ksfs);
2191 ksfs = &osd_oti_get(env)->oti_ksfs;
2194 result = sb->s_op->statfs(sb->s_root, ksfs);
2198 statfs_pack(sfs, ksfs);
2199 if (unlikely(sb->s_flags & MS_RDONLY))
2200 sfs->os_state |= OS_STATE_READONLY;
2202 sfs->os_state |= osd->od_nonrotational ? OS_STATE_NONROT : 0;
2204 if (ldiskfs_has_feature_extents(sb))
2205 sfs->os_maxbytes = sb->s_maxbytes;
2207 sfs->os_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2210 * Reserve some space so to avoid fragmenting the filesystem too much.
2211 * Fragmentation not only impacts performance, but can also increase
2212 * metadata overhead significantly, causing grant calculation to be
2215 * Reserve 0.78% of total space, at least 8MB for small filesystems.
2217 CLASSERT(OSD_STATFS_RESERVED > LDISKFS_MAX_BLOCK_SIZE);
2218 reserved = OSD_STATFS_RESERVED >> sb->s_blocksize_bits;
2219 if (likely(sfs->os_blocks >= reserved << OSD_STATFS_RESERVED_SHIFT))
2220 reserved = sfs->os_blocks >> OSD_STATFS_RESERVED_SHIFT;
2222 sfs->os_blocks -= reserved;
2223 sfs->os_bfree -= min(reserved, sfs->os_bfree);
2224 sfs->os_bavail -= min(reserved, sfs->os_bavail);
2227 if (unlikely(env == NULL))
2233 * Estimate space needed for file creations. We assume the largest filename
2234 * which is 2^64 - 1, hence a filename of 20 chars.
2235 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
2237 #ifdef __LDISKFS_DIR_REC_LEN
2238 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
2240 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
2244 * Concurrency: doesn't access mutable data.
2246 static void osd_conf_get(const struct lu_env *env,
2247 const struct dt_device *dev,
2248 struct dt_device_param *param)
2250 struct osd_device *d = osd_dt_dev(dev);
2251 struct super_block *sb = osd_sb(d);
2252 struct blk_integrity *bi = bdev_get_integrity(sb->s_bdev);
2257 * XXX should be taken from not-yet-existing fs abstraction layer.
2259 param->ddp_max_name_len = LDISKFS_NAME_LEN;
2260 param->ddp_max_nlink = LDISKFS_LINK_MAX;
2261 param->ddp_symlink_max = sb->s_blocksize;
2262 param->ddp_mount_type = LDD_MT_LDISKFS;
2263 if (ldiskfs_has_feature_extents(sb))
2264 param->ddp_maxbytes = sb->s_maxbytes;
2266 param->ddp_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2268 * inode are statically allocated, so per-inode space consumption
2269 * is the space consumed by the directory entry
2271 param->ddp_inodespace = PER_OBJ_USAGE;
2273 * EXT_INIT_MAX_LEN is the theoretical maximum extent size (32k blocks
2274 * is 128MB) which is unlikely to be hit in real life. Report a smaller
2275 * maximum length to not under-count the actual number of extents
2276 * needed for writing a file if there are sub-optimal block allocations.
2278 param->ddp_max_extent_blks = EXT_INIT_MAX_LEN >> 1;
2279 /* worst-case extent insertion metadata overhead */
2280 param->ddp_extent_tax = 6 * LDISKFS_BLOCK_SIZE(sb);
2281 param->ddp_mntopts = 0;
2282 if (test_opt(sb, XATTR_USER))
2283 param->ddp_mntopts |= MNTOPT_USERXATTR;
2284 if (test_opt(sb, POSIX_ACL))
2285 param->ddp_mntopts |= MNTOPT_ACL;
2288 * LOD might calculate the max stripe count based on max_ea_size,
2289 * so we need take account in the overhead as well,
2290 * xattr_header + magic + xattr_entry_head
2292 ea_overhead = sizeof(struct ldiskfs_xattr_header) + sizeof(__u32) +
2293 LDISKFS_XATTR_LEN(XATTR_NAME_MAX_LEN);
2295 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
2296 if (ldiskfs_has_feature_ea_inode(sb))
2297 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE -
2301 param->ddp_max_ea_size = sb->s_blocksize - ea_overhead;
2303 if (param->ddp_max_ea_size > OBD_MAX_EA_SIZE - ea_overhead)
2304 param->ddp_max_ea_size = OBD_MAX_EA_SIZE - ea_overhead;
2307 * Preferred RPC size for efficient disk IO. 4MB shows good
2308 * all-around performance for ldiskfs, but use bigalloc chunk size
2309 * by default if larger.
2311 #if defined(LDISKFS_CLUSTER_SIZE)
2312 if (LDISKFS_CLUSTER_SIZE(sb) > DT_DEF_BRW_SIZE)
2313 param->ddp_brw_size = LDISKFS_CLUSTER_SIZE(sb);
2316 param->ddp_brw_size = DT_DEF_BRW_SIZE;
2318 param->ddp_t10_cksum_type = 0;
2320 unsigned short interval = blk_integrity_interval(bi);
2321 name = blk_integrity_name(bi);
2329 if (strncmp(name, "T10-DIF-TYPE",
2330 sizeof("T10-DIF-TYPE") - 1) == 0) {
2331 /* also skip "1/3-" at end */
2332 const int type_off = sizeof("T10-DIF-TYPE.");
2333 char type_number = name[type_off - 2];
2335 if (interval != 512 && interval != 4096) {
2336 CERROR("%s: unsupported T10PI sector size %u\n",
2337 d->od_svname, interval);
2338 } else if (type_number != '1' && type_number != '3') {
2339 CERROR("%s: unsupported T10PI type %s\n",
2340 d->od_svname, name);
2341 } else if (strcmp(name + type_off, "CRC") == 0) {
2342 d->od_t10_type = type_number == '1' ?
2343 OSD_T10_TYPE1_CRC : OSD_T10_TYPE3_CRC;
2344 param->ddp_t10_cksum_type = interval == 512 ?
2345 OBD_CKSUM_T10CRC512 :
2347 } else if (strcmp(name + type_off, "IP") == 0) {
2348 d->od_t10_type = type_number == '1' ?
2349 OSD_T10_TYPE1_IP : OSD_T10_TYPE3_IP;
2350 param->ddp_t10_cksum_type = interval == 512 ?
2351 OBD_CKSUM_T10IP512 :
2354 CERROR("%s: unsupported checksum type of "
2356 d->od_svname, name);
2360 CERROR("%s: unsupported T10PI type '%s'",
2361 d->od_svname, name);
2366 static struct super_block *osd_mnt_sb_get(const struct dt_device *d)
2368 return osd_sb(osd_dt_dev(d));
2372 * Concurrency: shouldn't matter.
2374 static int osd_sync(const struct lu_env *env, struct dt_device *d)
2377 struct super_block *s = osd_sb(osd_dt_dev(d));
2380 down_read(&s->s_umount);
2381 rc = s->s_op->sync_fs(s, 1);
2382 up_read(&s->s_umount);
2384 CDEBUG(D_CACHE, "%s: synced OSD: rc = %d\n", osd_dt_dev(d)->od_svname,
2391 * Start commit for OSD device.
2393 * An implementation of dt_commit_async method for OSD device.
2394 * Asychronously starts underlayng fs sync and thereby a transaction
2397 * \param env environment
2398 * \param d dt device
2400 * \see dt_device_operations
2402 static int osd_commit_async(const struct lu_env *env,
2403 struct dt_device *d)
2405 struct super_block *s = osd_sb(osd_dt_dev(d));
2410 CDEBUG(D_HA, "%s: async commit OSD\n", osd_dt_dev(d)->od_svname);
2411 down_read(&s->s_umount);
2412 rc = s->s_op->sync_fs(s, 0);
2413 up_read(&s->s_umount);
2418 /* Our own copy of the set readonly functions if present, or NU if not. */
2419 static int (*priv_dev_set_rdonly)(struct block_device *bdev);
2420 static int (*priv_dev_check_rdonly)(struct block_device *bdev);
2421 /* static int (*priv_dev_clear_rdonly)(struct block_device *bdev); */
2424 * Concurrency: shouldn't matter.
2426 static int osd_ro(const struct lu_env *env, struct dt_device *d)
2428 struct super_block *sb = osd_sb(osd_dt_dev(d));
2429 struct block_device *dev = sb->s_bdev;
2430 int rc = -EOPNOTSUPP;
2434 if (priv_dev_set_rdonly) {
2435 struct block_device *jdev = LDISKFS_SB(sb)->journal_bdev;
2438 CERROR("*** setting %s read-only ***\n",
2439 osd_dt_dev(d)->od_svname);
2441 if (sb->s_op->freeze_fs) {
2442 rc = sb->s_op->freeze_fs(sb);
2447 if (jdev && (jdev != dev)) {
2448 CDEBUG(D_IOCTL | D_HA, "set journal dev %lx rdonly\n",
2450 priv_dev_set_rdonly(jdev);
2452 CDEBUG(D_IOCTL | D_HA, "set dev %lx rdonly\n", (long)dev);
2453 priv_dev_set_rdonly(dev);
2455 if (sb->s_op->unfreeze_fs)
2456 sb->s_op->unfreeze_fs(sb);
2461 CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
2462 osd_dt_dev(d)->od_svname, (long)dev, rc);
2468 * Note: we do not count into QUOTA here.
2469 * If we mount with --data_journal we may need more.
2471 const int osd_dto_credits_noquota[DTO_NR] = {
2474 * INDEX_EXTRA_TRANS_BLOCKS(8) +
2475 * SINGLEDATA_TRANS_BLOCKS(8)
2476 * XXX Note: maybe iam need more, since iam have more level than
2479 [DTO_INDEX_INSERT] = 16,
2482 * just modify a single entry, probably merge few within a block
2484 [DTO_INDEX_DELETE] = 1,
2488 [DTO_INDEX_UPDATE] = 16,
2490 * 4(inode, inode bits, groups, GDT)
2491 * notice: OI updates are counted separately with DTO_INDEX_INSERT
2493 [DTO_OBJECT_CREATE] = 4,
2495 * 4(inode, inode bits, groups, GDT)
2496 * notice: OI updates are counted separately with DTO_INDEX_DELETE
2498 [DTO_OBJECT_DELETE] = 4,
2500 * Attr set credits (inode)
2502 [DTO_ATTR_SET_BASE] = 1,
2504 * Xattr set. The same as xattr of EXT3.
2505 * DATA_TRANS_BLOCKS(14)
2506 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
2507 * are also counted in. Do not know why?
2509 [DTO_XATTR_SET] = 14,
2511 * credits for inode change during write.
2513 [DTO_WRITE_BASE] = 3,
2515 * credits for single block write.
2517 [DTO_WRITE_BLOCK] = 14,
2519 * Attr set credits for chown.
2520 * This is extra credits for setattr, and it is null without quota
2522 [DTO_ATTR_SET_CHOWN] = 0
2525 static const struct dt_device_operations osd_dt_ops = {
2526 .dt_root_get = osd_root_get,
2527 .dt_statfs = osd_statfs,
2528 .dt_trans_create = osd_trans_create,
2529 .dt_trans_start = osd_trans_start,
2530 .dt_trans_stop = osd_trans_stop,
2531 .dt_trans_cb_add = osd_trans_cb_add,
2532 .dt_conf_get = osd_conf_get,
2533 .dt_mnt_sb_get = osd_mnt_sb_get,
2534 .dt_sync = osd_sync,
2536 .dt_commit_async = osd_commit_async,
2539 static void osd_read_lock(const struct lu_env *env, struct dt_object *dt,
2542 struct osd_object *obj = osd_dt_obj(dt);
2543 struct osd_thread_info *oti = osd_oti_get(env);
2545 LINVRNT(osd_invariant(obj));
2547 LASSERT(obj->oo_owner != env);
2548 down_read_nested(&obj->oo_sem, role);
2550 LASSERT(obj->oo_owner == NULL);
2554 static void osd_write_lock(const struct lu_env *env, struct dt_object *dt,
2557 struct osd_object *obj = osd_dt_obj(dt);
2558 struct osd_thread_info *oti = osd_oti_get(env);
2560 LINVRNT(osd_invariant(obj));
2562 LASSERT(obj->oo_owner != env);
2563 down_write_nested(&obj->oo_sem, role);
2565 LASSERT(obj->oo_owner == NULL);
2566 obj->oo_owner = env;
2570 static void osd_read_unlock(const struct lu_env *env, struct dt_object *dt)
2572 struct osd_object *obj = osd_dt_obj(dt);
2573 struct osd_thread_info *oti = osd_oti_get(env);
2575 LINVRNT(osd_invariant(obj));
2577 LASSERT(oti->oti_r_locks > 0);
2579 up_read(&obj->oo_sem);
2582 static void osd_write_unlock(const struct lu_env *env, struct dt_object *dt)
2584 struct osd_object *obj = osd_dt_obj(dt);
2585 struct osd_thread_info *oti = osd_oti_get(env);
2587 LINVRNT(osd_invariant(obj));
2589 LASSERT(obj->oo_owner == env);
2590 LASSERT(oti->oti_w_locks > 0);
2592 obj->oo_owner = NULL;
2593 up_write(&obj->oo_sem);
2596 static int osd_write_locked(const struct lu_env *env, struct dt_object *dt)
2598 struct osd_object *obj = osd_dt_obj(dt);
2600 LINVRNT(osd_invariant(obj));
2602 return obj->oo_owner == env;
2605 static struct timespec *osd_inode_time(const struct lu_env *env,
2606 struct inode *inode, __u64 seconds)
2608 struct osd_thread_info *oti = osd_oti_get(env);
2609 struct timespec *t = &oti->oti_time;
2611 t->tv_sec = seconds;
2613 *t = timespec_trunc(*t, inode->i_sb->s_time_gran);
2617 static void osd_inode_getattr(const struct lu_env *env,
2618 struct inode *inode, struct lu_attr *attr)
2620 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
2621 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
2622 LA_PROJID | LA_FLAGS | LA_NLINK | LA_RDEV |
2623 LA_BLKSIZE | LA_TYPE;
2625 attr->la_atime = inode->i_atime.tv_sec;
2626 attr->la_mtime = inode->i_mtime.tv_sec;
2627 attr->la_ctime = inode->i_ctime.tv_sec;
2628 attr->la_mode = inode->i_mode;
2629 attr->la_size = i_size_read(inode);
2630 attr->la_blocks = inode->i_blocks;
2631 attr->la_uid = i_uid_read(inode);
2632 attr->la_gid = i_gid_read(inode);
2633 attr->la_projid = i_projid_read(inode);
2634 attr->la_flags = ll_inode_to_ext_flags(inode->i_flags);
2635 attr->la_nlink = inode->i_nlink;
2636 attr->la_rdev = inode->i_rdev;
2637 attr->la_blksize = 1 << inode->i_blkbits;
2638 attr->la_blkbits = inode->i_blkbits;
2640 * Ext4 did not transfer inherit flags from raw inode
2641 * to inode flags, and ext4 internally test raw inode
2642 * @i_flags directly. Instead of patching ext4, we do it here.
2644 if (LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL)
2645 attr->la_flags |= LUSTRE_PROJINHERIT_FL;
2648 static int osd_attr_get(const struct lu_env *env, struct dt_object *dt,
2649 struct lu_attr *attr)
2651 struct osd_object *obj = osd_dt_obj(dt);
2653 if (unlikely(!dt_object_exists(dt)))
2655 if (unlikely(obj->oo_destroyed))
2658 LASSERT(!dt_object_remote(dt));
2659 LINVRNT(osd_invariant(obj));
2661 spin_lock(&obj->oo_guard);
2662 osd_inode_getattr(env, obj->oo_inode, attr);
2663 if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL) {
2664 attr->la_valid |= LA_FLAGS;
2665 attr->la_flags |= LUSTRE_ORPHAN_FL;
2667 spin_unlock(&obj->oo_guard);
2672 static int osd_declare_attr_qid(const struct lu_env *env,
2673 struct osd_object *obj,
2674 struct osd_thandle *oh, long long bspace,
2675 qid_t old_id, qid_t new_id, bool enforce,
2676 unsigned int type, bool ignore_edquot)
2679 struct osd_thread_info *info = osd_oti_get(env);
2680 struct lquota_id_info *qi = &info->oti_qi;
2682 qi->lqi_type = type;
2683 /* inode accounting */
2684 qi->lqi_is_blk = false;
2686 /* one more inode for the new id ... */
2687 qi->lqi_id.qid_uid = new_id;
2689 /* Reserve credits for the new id */
2690 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
2691 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2696 /* and one less inode for the current id */
2697 qi->lqi_id.qid_uid = old_id;
2699 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2700 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2705 /* block accounting */
2706 qi->lqi_is_blk = true;
2708 /* more blocks for the new id ... */
2709 qi->lqi_id.qid_uid = new_id;
2710 qi->lqi_space = bspace;
2712 * Credits for the new uid has been reserved, re-use "obj"
2713 * to save credit reservation.
2715 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2716 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2721 /* and finally less blocks for the current uid */
2722 qi->lqi_id.qid_uid = old_id;
2723 qi->lqi_space = -bspace;
2724 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2725 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2731 static int osd_declare_attr_set(const struct lu_env *env,
2732 struct dt_object *dt,
2733 const struct lu_attr *attr,
2734 struct thandle *handle)
2736 struct osd_thandle *oh;
2737 struct osd_object *obj;
2746 LASSERT(dt != NULL);
2747 LASSERT(handle != NULL);
2749 obj = osd_dt_obj(dt);
2750 LASSERT(osd_invariant(obj));
2752 oh = container_of0(handle, struct osd_thandle, ot_super);
2753 LASSERT(oh->ot_handle == NULL);
2755 osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
2756 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2758 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
2759 osd_dto_credits_noquota[DTO_XATTR_SET]);
2761 if (attr == NULL || obj->oo_inode == NULL)
2764 bspace = obj->oo_inode->i_blocks << 9;
2765 bspace = toqb(bspace);
2768 * Changing ownership is always preformed by super user, it should not
2769 * fail with EDQUOT unless required explicitly.
2771 * We still need to call the osd_declare_qid() to calculate the journal
2772 * credits for updating quota accounting files and to trigger quota
2773 * space adjustment once the operation is completed.
2775 if (attr->la_valid & LA_UID || attr->la_valid & LA_GID) {
2776 bool ignore_edquot = !(attr->la_flags & LUSTRE_SET_SYNC_FL);
2779 CDEBUG(D_QUOTA, "%s: enforce quota on UID %u, GID %u"
2780 "(the quota space is %lld)\n",
2781 obj->oo_inode->i_sb->s_id, attr->la_uid,
2782 attr->la_gid, bspace);
2785 uid = i_uid_read(obj->oo_inode);
2786 enforce = (attr->la_valid & LA_UID) && (attr->la_uid != uid);
2787 rc = osd_declare_attr_qid(env, obj, oh, bspace, uid,
2788 attr->la_uid, enforce, USRQUOTA,
2793 gid = i_gid_read(obj->oo_inode);
2794 enforce = (attr->la_valid & LA_GID) && (attr->la_gid != gid);
2795 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2796 i_gid_read(obj->oo_inode),
2797 attr->la_gid, enforce, GRPQUOTA,
2803 #ifdef HAVE_PROJECT_QUOTA
2804 if (attr->la_valid & LA_PROJID) {
2805 __u32 projid = i_projid_read(obj->oo_inode);
2807 enforce = (attr->la_valid & LA_PROJID) &&
2808 (attr->la_projid != projid);
2809 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2810 (qid_t)projid, (qid_t)attr->la_projid,
2811 enforce, PRJQUOTA, true);
2819 static int osd_inode_setattr(const struct lu_env *env,
2820 struct inode *inode, const struct lu_attr *attr)
2822 __u64 bits = attr->la_valid;
2824 /* Only allow set size for regular file */
2825 if (!S_ISREG(inode->i_mode))
2826 bits &= ~(LA_SIZE | LA_BLOCKS);
2831 if (bits & LA_ATIME)
2832 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
2833 if (bits & LA_CTIME)
2834 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
2835 if (bits & LA_MTIME)
2836 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
2837 if (bits & LA_SIZE) {
2838 spin_lock(&inode->i_lock);
2839 LDISKFS_I(inode)->i_disksize = attr->la_size;
2840 i_size_write(inode, attr->la_size);
2841 spin_unlock(&inode->i_lock);
2845 * OSD should not change "i_blocks" which is used by quota.
2846 * "i_blocks" should be changed by ldiskfs only.
2849 inode->i_mode = (inode->i_mode & S_IFMT) |
2850 (attr->la_mode & ~S_IFMT);
2852 i_uid_write(inode, attr->la_uid);
2854 i_gid_write(inode, attr->la_gid);
2855 if (bits & LA_PROJID)
2856 i_projid_write(inode, attr->la_projid);
2857 if (bits & LA_NLINK)
2858 set_nlink(inode, attr->la_nlink);
2860 inode->i_rdev = attr->la_rdev;
2862 if (bits & LA_FLAGS) {
2863 /* always keep S_NOCMTIME */
2864 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
2867 * Ext4 did not transfer inherit flags from
2868 * @inode->i_flags to raw inode i_flags when writing
2869 * flags, we do it explictly here.
2871 if (attr->la_flags & LUSTRE_PROJINHERIT_FL)
2872 LDISKFS_I(inode)->i_flags |= LUSTRE_PROJINHERIT_FL;
2874 LDISKFS_I(inode)->i_flags &= ~LUSTRE_PROJINHERIT_FL;
2879 #ifdef HAVE_PROJECT_QUOTA
2880 static int osd_transfer_project(struct inode *inode, __u32 projid)
2882 struct super_block *sb = inode->i_sb;
2883 struct ldiskfs_inode_info *ei = LDISKFS_I(inode);
2886 struct ldiskfs_iloc iloc;
2887 struct ldiskfs_inode *raw_inode;
2888 struct dquot *transfer_to[LDISKFS_MAXQUOTAS] = { };
2890 if (!ldiskfs_has_feature_project(sb)) {
2891 LASSERT(__kprojid_val(LDISKFS_I(inode)->i_projid)
2892 == LDISKFS_DEF_PROJID);
2893 if (projid != LDISKFS_DEF_PROJID)
2899 if (LDISKFS_INODE_SIZE(sb) <= LDISKFS_GOOD_OLD_INODE_SIZE)
2902 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
2903 if (projid_eq(kprojid, LDISKFS_I(inode)->i_projid))
2906 err = ldiskfs_get_inode_loc(inode, &iloc);
2910 raw_inode = ldiskfs_raw_inode(&iloc);
2911 if (!LDISKFS_FITS_IN_INODE(raw_inode, ei, i_projid)) {
2918 dquot_initialize(inode);
2919 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
2920 if (transfer_to[PRJQUOTA]) {
2921 err = __dquot_transfer(inode, transfer_to);
2922 dqput(transfer_to[PRJQUOTA]);
2931 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
2935 if ((attr->la_valid & LA_UID && attr->la_uid != i_uid_read(inode)) ||
2936 (attr->la_valid & LA_GID && attr->la_gid != i_gid_read(inode))) {
2939 ll_vfs_dq_init(inode);
2941 if (attr->la_valid & LA_UID)
2942 iattr.ia_valid |= ATTR_UID;
2943 if (attr->la_valid & LA_GID)
2944 iattr.ia_valid |= ATTR_GID;
2945 iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
2946 iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
2948 rc = ll_vfs_dq_transfer(inode, &iattr);
2950 CERROR("%s: quota transfer failed: rc = %d. Is quota "
2951 "enforcement enabled on the ldiskfs "
2952 "filesystem?\n", inode->i_sb->s_id, rc);
2957 /* Handle project id transfer here properly */
2958 if (attr->la_valid & LA_PROJID &&
2959 attr->la_projid != i_projid_read(inode)) {
2960 #ifdef HAVE_PROJECT_QUOTA
2961 rc = osd_transfer_project(inode, attr->la_projid);
2966 CERROR("%s: quota transfer failed: rc = %d. Is project "
2967 "enforcement enabled on the ldiskfs "
2968 "filesystem?\n", inode->i_sb->s_id, rc);
2975 static int osd_attr_set(const struct lu_env *env,
2976 struct dt_object *dt,
2977 const struct lu_attr *attr,
2978 struct thandle *handle)
2980 struct osd_object *obj = osd_dt_obj(dt);
2981 struct inode *inode;
2984 if (!dt_object_exists(dt))
2987 LASSERT(handle != NULL);
2988 LASSERT(!dt_object_remote(dt));
2989 LASSERT(osd_invariant(obj));
2991 osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
2993 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING) &&
2994 !osd_obj2dev(obj)->od_is_ost) {
2995 struct osd_thread_info *oti = osd_oti_get(env);
2996 const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
2997 struct lu_fid *fid1 = &oti->oti_fid;
2998 struct osd_inode_id *id = &oti->oti_id;
2999 struct iam_path_descr *ipd;
3000 struct iam_container *bag;
3001 struct osd_thandle *oh;
3004 fid_cpu_to_be(fid1, fid0);
3005 memset(id, 1, sizeof(*id));
3006 bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
3007 fid0)->oi_dir.od_container;
3008 ipd = osd_idx_ipd_get(env, bag);
3009 if (unlikely(ipd == NULL))
3012 oh = container_of0(handle, struct osd_thandle, ot_super);
3013 rc = iam_update(oh->ot_handle, bag,
3014 (const struct iam_key *)fid1,
3015 (const struct iam_rec *)id, ipd);
3016 osd_ipd_put(env, bag, ipd);
3017 return(rc > 0 ? 0 : rc);
3020 inode = obj->oo_inode;
3022 rc = osd_quota_transfer(inode, attr);
3026 spin_lock(&obj->oo_guard);
3027 rc = osd_inode_setattr(env, inode, attr);
3028 spin_unlock(&obj->oo_guard);
3032 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3034 if (!(attr->la_valid & LA_FLAGS))
3037 /* Let's check if there are extra flags need to be set into LMA */
3038 if (attr->la_flags & LUSTRE_LMA_FL_MASKS) {
3039 struct osd_thread_info *info = osd_oti_get(env);
3040 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
3042 LASSERT(!obj->oo_pfid_in_lma);
3044 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
3045 &info->oti_ost_attrs);
3049 lma->lma_incompat |=
3050 lustre_to_lma_flags(attr->la_flags);
3051 lustre_lma_swab(lma);
3052 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA,
3053 lma, sizeof(*lma), XATTR_REPLACE);
3055 struct osd_device *osd = osd_obj2dev(obj);
3057 CWARN("%s: set "DFID" lma flags %u failed: rc = %d\n",
3058 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)),
3059 lma->lma_incompat, rc);
3062 attr->la_flags & LUSTRE_LMA_FL_MASKS;
3064 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
3067 osd_trans_exec_check(env, handle, OSD_OT_ATTR_SET);
3072 static struct dentry *osd_child_dentry_get(const struct lu_env *env,
3073 struct osd_object *obj,
3074 const char *name, const int namelen)
3076 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
3079 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
3080 umode_t mode, struct dt_allocation_hint *hint,
3081 struct thandle *th, struct lu_attr *attr)
3084 struct osd_device *osd = osd_obj2dev(obj);
3085 struct osd_thandle *oth;
3086 struct dt_object *parent = NULL;
3087 struct inode *inode;
3088 uid_t owner[2] = {0, 0};
3090 if (attr->la_valid & LA_UID)
3091 owner[0] = attr->la_uid;
3092 if (attr->la_valid & LA_GID)
3093 owner[1] = attr->la_gid;
3095 LINVRNT(osd_invariant(obj));
3096 LASSERT(obj->oo_inode == NULL);
3097 LASSERT(obj->oo_hl_head == NULL);
3099 if (S_ISDIR(mode) && ldiskfs_pdo) {
3101 ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
3102 if (obj->oo_hl_head == NULL)
3106 oth = container_of(th, struct osd_thandle, ot_super);
3107 LASSERT(oth->ot_handle->h_transaction != NULL);
3109 if (hint != NULL && hint->dah_parent != NULL &&
3110 !dt_object_remote(hint->dah_parent))
3111 parent = hint->dah_parent;
3113 inode = ldiskfs_create_inode(oth->ot_handle,
3114 parent ? osd_dt_obj(parent)->oo_inode :
3115 osd_sb(osd)->s_root->d_inode,
3117 if (!IS_ERR(inode)) {
3118 /* Do not update file c/mtime in ldiskfs. */
3119 inode->i_flags |= S_NOCMTIME;
3122 * For new created object, it must be consistent,
3123 * and it is unnecessary to scrub against it.
3125 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
3127 obj->oo_inode = inode;
3130 if (obj->oo_hl_head != NULL) {
3131 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
3132 obj->oo_hl_head = NULL;
3134 result = PTR_ERR(inode);
3136 LINVRNT(osd_invariant(obj));
3144 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
3145 struct lu_attr *attr,
3146 struct dt_allocation_hint *hint,
3147 struct dt_object_format *dof,
3151 struct osd_thandle *oth;
3152 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX | S_ISGID));
3154 LASSERT(S_ISDIR(attr->la_mode));
3156 oth = container_of(th, struct osd_thandle, ot_super);
3157 LASSERT(oth->ot_handle->h_transaction != NULL);
3158 result = osd_mkfile(info, obj, mode, hint, th, attr);
3163 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
3164 struct lu_attr *attr,
3165 struct dt_allocation_hint *hint,
3166 struct dt_object_format *dof,
3170 struct osd_thandle *oth;
3171 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
3173 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
3175 LASSERT(S_ISREG(attr->la_mode));
3177 oth = container_of(th, struct osd_thandle, ot_super);
3178 LASSERT(oth->ot_handle->h_transaction != NULL);
3180 result = osd_mkfile(info, obj, mode, hint, th, attr);
3182 LASSERT(obj->oo_inode != NULL);
3183 if (feat->dif_flags & DT_IND_VARKEY)
3184 result = iam_lvar_create(obj->oo_inode,
3185 feat->dif_keysize_max,
3187 feat->dif_recsize_max,
3190 result = iam_lfix_create(obj->oo_inode,
3191 feat->dif_keysize_max,
3193 feat->dif_recsize_max,
3199 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
3200 struct lu_attr *attr,
3201 struct dt_allocation_hint *hint,
3202 struct dt_object_format *dof,
3205 LASSERT(S_ISREG(attr->la_mode));
3206 return osd_mkfile(info, obj, (attr->la_mode &
3207 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th,
3211 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
3212 struct lu_attr *attr,
3213 struct dt_allocation_hint *hint,
3214 struct dt_object_format *dof,
3217 LASSERT(S_ISLNK(attr->la_mode));
3218 return osd_mkfile(info, obj, (attr->la_mode &
3219 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th,
3223 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
3224 struct lu_attr *attr,
3225 struct dt_allocation_hint *hint,
3226 struct dt_object_format *dof,
3229 umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
3232 LINVRNT(osd_invariant(obj));
3233 LASSERT(obj->oo_inode == NULL);
3234 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
3235 S_ISFIFO(mode) || S_ISSOCK(mode));
3237 result = osd_mkfile(info, obj, mode, hint, th, attr);
3239 LASSERT(obj->oo_inode != NULL);
3241 * This inode should be marked dirty for i_rdev. Currently
3242 * that is done in the osd_attr_init().
3244 init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
3247 LINVRNT(osd_invariant(obj));
3251 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
3253 struct dt_allocation_hint *hint,
3254 struct dt_object_format *dof,
3257 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
3259 osd_obj_type_f result;
3275 result = osd_mk_index;
3286 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
3287 struct dt_object *parent, struct dt_object *child,
3292 ah->dah_parent = parent;
3293 ah->dah_mode = child_mode;
3295 if (parent != NULL && !dt_object_remote(parent)) {
3296 /* will help to find FID->ino at dt_insert("..") */
3297 struct osd_object *pobj = osd_dt_obj(parent);
3299 osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
3303 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
3304 struct lu_attr *attr, struct dt_object_format *dof)
3306 struct inode *inode = obj->oo_inode;
3307 __u64 valid = attr->la_valid;
3310 attr->la_valid &= ~(LA_TYPE | LA_MODE);
3312 if (dof->dof_type != DFT_NODE)
3313 attr->la_valid &= ~LA_RDEV;
3314 if ((valid & LA_ATIME) && (attr->la_atime == inode->i_atime.tv_sec))
3315 attr->la_valid &= ~LA_ATIME;
3316 if ((valid & LA_CTIME) && (attr->la_ctime == inode->i_ctime.tv_sec))
3317 attr->la_valid &= ~LA_CTIME;
3318 if ((valid & LA_MTIME) && (attr->la_mtime == inode->i_mtime.tv_sec))
3319 attr->la_valid &= ~LA_MTIME;
3321 result = osd_quota_transfer(inode, attr);
3325 if (attr->la_valid != 0) {
3326 result = osd_inode_setattr(info->oti_env, inode, attr);
3328 * The osd_inode_setattr() should always succeed here. The
3329 * only error that could be returned is EDQUOT when we are
3330 * trying to change the UID or GID of the inode. However, this
3331 * should not happen since quota enforcement is no longer
3332 * enabled on ldiskfs (lquota takes care of it).
3334 LASSERTF(result == 0, "%d\n", result);
3335 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3338 attr->la_valid = valid;
3342 * Helper function for osd_create()
3344 * \retval 0, on success
3346 static int __osd_create(struct osd_thread_info *info, struct osd_object *obj,
3347 struct lu_attr *attr, struct dt_allocation_hint *hint,
3348 struct dt_object_format *dof, struct thandle *th)
3353 osd_trans_exec_op(info->oti_env, th, OSD_OT_CREATE);
3355 /* we drop umask so that permissions we pass are not affected */
3356 umask = current->fs->umask;
3357 current->fs->umask = 0;
3359 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
3361 if (likely(obj->oo_inode != NULL)) {
3362 LASSERT(obj->oo_inode->i_state & I_NEW);
3365 * Unlock the inode before attr initialization to avoid
3366 * unnecessary dqget operations. LU-6378
3368 unlock_new_inode(obj->oo_inode);
3371 if (likely(result == 0)) {
3372 osd_attr_init(info, obj, attr, dof);
3373 osd_object_init0(obj);
3376 /* restore previous umask value */
3377 current->fs->umask = umask;
3379 osd_trans_exec_check(info->oti_env, th, OSD_OT_CREATE);
3385 * Helper function for osd_create()
3387 * \retval 0, on success
3389 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
3390 const struct lu_fid *fid, struct thandle *th)
3392 struct osd_thread_info *info = osd_oti_get(env);
3393 struct osd_inode_id *id = &info->oti_id;
3394 struct osd_device *osd = osd_obj2dev(obj);
3395 struct osd_thandle *oh;
3398 LASSERT(obj->oo_inode != NULL);
3400 oh = container_of0(th, struct osd_thandle, ot_super);
3401 LASSERT(oh->ot_handle);
3402 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3404 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
3405 rc = osd_oi_insert(info, osd, fid, id, oh->ot_handle,
3406 OI_CHECK_FLD, NULL);
3407 osd_trans_exec_check(env, th, OSD_OT_INSERT);
3412 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
3413 u64 seq, struct lu_seq_range *range)
3415 struct seq_server_site *ss = osd_seq_site(osd);
3417 if (fid_seq_is_idif(seq)) {
3418 fld_range_set_ost(range);
3419 range->lsr_index = idif_ost_idx(seq);
3423 if (!fid_seq_in_fldb(seq)) {
3424 fld_range_set_mdt(range);
3427 * FIXME: If ss is NULL, it suppose not get lsr_index
3430 range->lsr_index = ss->ss_node_id;
3434 LASSERT(ss != NULL);
3435 fld_range_set_any(range);
3436 /* OSD will only do local fld lookup */
3437 return fld_local_lookup(env, ss->ss_server_fld, seq, range);
3440 static int osd_declare_create(const struct lu_env *env, struct dt_object *dt,
3441 struct lu_attr *attr,
3442 struct dt_allocation_hint *hint,
3443 struct dt_object_format *dof,
3444 struct thandle *handle)
3446 struct osd_thandle *oh;
3451 LASSERT(handle != NULL);
3453 oh = container_of0(handle, struct osd_thandle, ot_super);
3454 LASSERT(oh->ot_handle == NULL);
3457 * EA object consumes more credits than regular object: osd_mk_index
3458 * vs. osd_mkreg: osd_mk_index will create 2 blocks for root_node and
3459 * leaf_node, could involves the block, block bitmap, groups, GDT
3460 * change for each block, so add 4 * 2 credits in that case.
3462 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
3463 osd_dto_credits_noquota[DTO_OBJECT_CREATE] +
3464 (dof->dof_type == DFT_INDEX) ? 4 * 2 : 0);
3466 * Reuse idle OI block may cause additional one OI block
3469 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3470 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
3472 /* will help to find FID->ino mapping at dt_insert() */
3473 rc = osd_idc_find_and_init(env, osd_obj2dev(osd_dt_obj(dt)),
3481 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid,
3482 attr->la_projid, 1, oh, osd_dt_obj(dt),
3483 NULL, OSD_QID_INODE);
3491 * Called to destroy on-disk representation of the object
3493 * Concurrency: must be locked
3495 static int osd_declare_destroy(const struct lu_env *env, struct dt_object *dt,
3498 struct osd_object *obj = osd_dt_obj(dt);
3499 struct inode *inode = obj->oo_inode;
3500 struct osd_thandle *oh;
3508 oh = container_of0(th, struct osd_thandle, ot_super);
3509 LASSERT(oh->ot_handle == NULL);
3511 osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
3512 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
3514 /* For removing agent entry */
3515 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu))
3516 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
3519 * Recycle idle OI leaf may cause additional three OI blocks
3522 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3523 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3524 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
3525 /* one less inode */
3526 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3527 i_projid_read(inode), -1, oh, obj, NULL,
3531 /* data to be truncated */
3532 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3533 i_projid_read(inode), 0, oh, obj, NULL,
3539 * will help to find FID->ino when this object is being
3542 rc = osd_idc_find_and_init(env, osd_obj2dev(obj), obj);
3547 static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
3550 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3551 struct osd_object *obj = osd_dt_obj(dt);
3552 struct inode *inode = obj->oo_inode;
3553 struct osd_device *osd = osd_obj2dev(obj);
3554 struct osd_thandle *oh;
3559 oh = container_of0(th, struct osd_thandle, ot_super);
3560 LASSERT(oh->ot_handle);
3562 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
3564 if (unlikely(fid_is_acct(fid)))
3567 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu)) {
3568 result = osd_delete_from_remote_parent(env, osd, obj, oh, true);
3570 CERROR("%s: remove agent entry "DFID": rc = %d\n",
3571 osd_name(osd), PFID(fid), result);
3574 if (S_ISDIR(inode->i_mode)) {
3575 LASSERT(osd_inode_unlinked(inode) || inode->i_nlink == 1 ||
3576 inode->i_nlink == 2);
3578 spin_lock(&obj->oo_guard);
3580 spin_unlock(&obj->oo_guard);
3581 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3584 osd_trans_exec_op(env, th, OSD_OT_DESTROY);
3586 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
3588 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3589 result = osd_oi_delete(osd_oti_get(env), osd, fid,
3590 oh->ot_handle, OI_CHECK_FLD);
3592 osd_trans_exec_check(env, th, OSD_OT_DESTROY);
3593 /* XXX: add to ext3 orphan list */
3594 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
3596 /* not needed in the cache anymore */
3597 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
3598 obj->oo_destroyed = 1;
3604 * Put the fid into lustre_mdt_attrs, and then place the structure
3605 * inode's ea. This fid should not be altered during the life time
3608 * \retval +ve, on success
3609 * \retval -ve, on error
3611 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
3613 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
3614 const struct lu_fid *fid, __u32 compat, __u32 incompat)
3616 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
3617 struct lustre_mdt_attrs *lma = &loa->loa_lma;
3622 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INLMA))
3625 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_OST_EA_FID_SET))
3628 lustre_loa_init(loa, fid, compat, incompat);
3629 lustre_loa_swab(loa, false);
3632 * For the OST device with 256 bytes inode size by default,
3633 * the PFID EA will be stored together with LMA EA to avoid
3634 * performance trouble. Otherwise the PFID EA can be stored
3635 * independently. LU-8998
3637 if ((compat & LMAC_FID_ON_OST) &&
3638 LDISKFS_INODE_SIZE(inode->i_sb) <= 256)
3639 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3640 sizeof(*loa), XATTR_CREATE);
3642 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3643 sizeof(*lma), XATTR_CREATE);
3645 * LMA may already exist, but we need to check that all the
3646 * desired compat/incompat flags have been added.
3648 if (unlikely(rc == -EEXIST)) {
3649 rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
3650 XATTR_NAME_LMA, (void *)loa, sizeof(*loa));
3654 if (rc < sizeof(*lma))
3657 lustre_loa_swab(loa, true);
3658 if (lu_fid_eq(fid, &lma->lma_self_fid) &&
3659 ((compat == 0 && incompat == 0) ||
3660 (!(~lma->lma_compat & compat) &&
3661 !(~lma->lma_incompat & incompat))))
3664 lma->lma_self_fid = *fid;
3665 lma->lma_compat |= compat;
3666 lma->lma_incompat |= incompat;
3667 if (rc == sizeof(*lma)) {
3668 lustre_lma_swab(lma);
3669 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3670 sizeof(*lma), XATTR_REPLACE);
3672 lustre_loa_swab(loa, false);
3673 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3674 sizeof(*loa), XATTR_REPLACE);
3682 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
3683 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
3684 * To have compatilibility with 1.8 ldiskfs driver we need to have
3685 * magic number at start of fid data.
3686 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
3689 static void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
3690 const struct lu_fid *fid)
3692 if (!fid_is_namespace_visible(fid) ||
3693 OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
3694 param->edp_magic = 0;
3698 param->edp_magic = LDISKFS_LUFID_MAGIC;
3699 param->edp_len = sizeof(struct lu_fid) + 1;
3700 fid_cpu_to_be((struct lu_fid *)param->edp_data, (struct lu_fid *)fid);
3704 * Try to read the fid from inode ea into dt_rec.
3706 * \param fid object fid.
3708 * \retval 0 on success
3710 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
3711 __u32 ino, struct lu_fid *fid,
3712 struct osd_inode_id *id)
3714 struct osd_thread_info *info = osd_oti_get(env);
3715 struct inode *inode;
3719 osd_id_gen(id, ino, OSD_OII_NOGEN);
3720 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
3722 RETURN(PTR_ERR(inode));
3728 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
3730 struct inode *parent_dir,
3731 const struct lu_fid *dot_fid,
3732 const struct lu_fid *dot_dot_fid,
3733 struct osd_thandle *oth)
3735 struct ldiskfs_dentry_param *dot_ldp;
3736 struct ldiskfs_dentry_param *dot_dot_ldp;
3737 __u32 saved_nlink = dir->i_nlink;
3740 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
3741 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
3743 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3744 dot_ldp->edp_magic = 0;
3746 rc = ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
3747 dir, dot_ldp, dot_dot_ldp);
3749 * The ldiskfs_add_dot_dotdot() may dir->i_nlink as 2, then
3750 * the subseqent ref_add() will increase the dir->i_nlink
3751 * as 3. That is incorrect for new created directory.
3753 * It looks like hack, because we want to make the OSD API
3754 * to be order-independent for new created directory object
3755 * between dt_insert(..) and ref_add() operations.
3757 * Here, we only restore the in-RAM dir-inode's nlink attr,
3758 * becuase if the nlink attr is not 2, then there will be
3759 * ref_add() called following the dt_insert(..), such call
3760 * will make both the in-RAM and on-disk dir-inode's nlink
3761 * attr to be set as 2. LU-7447
3763 set_nlink(dir, saved_nlink);
3768 * Create an local agent inode for remote entry
3770 static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
3771 struct osd_device *osd,
3772 struct osd_object *pobj,
3773 const struct lu_fid *fid,
3777 struct osd_thread_info *info = osd_oti_get(env);
3778 struct inode *local;
3779 struct osd_thandle *oh;
3785 oh = container_of(th, struct osd_thandle, ot_super);
3786 LASSERT(oh->ot_handle->h_transaction != NULL);
3788 local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, type,
3790 if (IS_ERR(local)) {
3791 CERROR("%s: create local error %d\n", osd_name(osd),
3792 (int)PTR_ERR(local));
3797 * restore i_gid in case S_ISGID is set, we will inherit S_ISGID and set
3798 * correct gid on remote file, not agent here
3800 local->i_gid = current_fsgid();
3801 ldiskfs_set_inode_state(local, LDISKFS_STATE_LUSTRE_NOSCRUB);
3803 /* e2fsck doesn't like empty symlinks. Store remote FID as symlink.
3804 * That gives e2fsck something to look at and be happy, and allows
3805 * debugging if we need to determine where this symlink came from.
3807 if (S_ISLNK(type)) {
3808 CLASSERT(LDISKFS_N_BLOCKS * 4 >= FID_LEN + 1);
3809 rc = snprintf((char *)LDISKFS_I(local)->i_data,
3810 LDISKFS_N_BLOCKS * 4, DFID, PFID(fid));
3812 i_size_write(local, rc);
3813 LDISKFS_I(local)->i_disksize = rc;
3815 unlock_new_inode(local);
3817 /* Agent inode should not have project ID */
3818 #ifdef HAVE_PROJECT_QUOTA
3819 if (LDISKFS_I(pobj->oo_inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
3820 i_projid_read(pobj->oo_inode) != 0) {
3821 rc = osd_transfer_project(local, 0);
3823 CERROR("%s: quota transfer failed: rc = %d. Is project "
3824 "quota enforcement enabled on the ldiskfs "
3825 "filesystem?\n", local->i_sb->s_id, rc);
3826 RETURN(ERR_PTR(rc));
3830 /* Set special LMA flag for local agent inode */
3831 rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
3833 CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
3834 osd_name(osd), PFID(fid), rc);
3835 RETURN(ERR_PTR(rc));
3841 rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
3842 lu_object_fid(&pobj->oo_dt.do_lu),
3845 CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
3846 osd_name(osd), PFID(fid), rc);
3847 RETURN(ERR_PTR(rc));
3854 * when direntry is deleted, we have to take care of possible agent inode
3855 * referenced by that. unfortunately we can't do this at that point:
3856 * iget() within a running transaction leads to deadlock and we better do
3857 * not call that every delete declaration to save performance. so we put
3858 * a potention agent inode on a list and process that once the transaction
3859 * is over. Notice it's not any worse in terms of real orphans as regular
3860 * object destroy doesn't put inodes on the on-disk orphan list. this should
3861 * be addressed separately
3863 static int osd_schedule_agent_inode_removal(const struct lu_env *env,
3864 struct osd_thandle *oh,
3867 struct osd_device *osd = osd_dt_dev(oh->ot_super.th_dev);
3868 struct osd_obj_orphan *oor;
3875 oor->oor_env = (struct lu_env *)env;
3876 spin_lock(&osd->od_osfs_lock);
3877 list_add(&oor->oor_list, &osd->od_orphan_list);
3878 spin_unlock(&osd->od_osfs_lock);
3880 oh->ot_remove_agents = 1;
3886 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
3887 struct osd_device *osd)
3889 struct osd_thread_info *info = osd_oti_get(env);
3890 struct osd_obj_orphan *oor, *tmp;
3891 struct osd_inode_id id;
3892 struct list_head list;
3893 struct inode *inode;
3898 INIT_LIST_HEAD(&list);
3900 spin_lock(&osd->od_osfs_lock);
3901 list_for_each_entry_safe(oor, tmp, &osd->od_orphan_list, oor_list) {
3902 if (oor->oor_env == env) {
3903 list_del(&oor->oor_list);
3904 list_add(&oor->oor_list, &list);
3907 spin_unlock(&osd->od_osfs_lock);
3909 list_for_each_entry_safe(oor, tmp, &list, oor_list) {
3913 list_del(&oor->oor_list);
3916 osd_id_gen(&id, ino, OSD_OII_NOGEN);
3917 inode = osd_iget_fid(info, osd, &id, &fid);
3921 if (!osd_remote_fid(env, osd, &fid)) {
3926 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC, 1);
3928 mark_inode_dirty(inode);
3929 ldiskfs_journal_stop(jh);
3937 * OSD layer object create function for OST objects (b=11826).
3939 * The FID is inserted into inode xattr here.
3941 * \retval 0, on success
3942 * \retval -ve, on error
3944 static int osd_create(const struct lu_env *env, struct dt_object *dt,
3945 struct lu_attr *attr, struct dt_allocation_hint *hint,
3946 struct dt_object_format *dof, struct thandle *th)
3948 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3949 struct osd_object *obj = osd_dt_obj(dt);
3950 struct osd_thread_info *info = osd_oti_get(env);
3951 int result, on_ost = 0;
3955 if (dt_object_exists(dt))
3958 LINVRNT(osd_invariant(obj));
3959 LASSERT(!dt_object_remote(dt));
3960 LASSERT(osd_is_write_locked(env, obj));
3961 LASSERT(th != NULL);
3963 if (unlikely(fid_is_acct(fid)))
3965 * Quota files can't be created from the kernel any more,
3966 * 'tune2fs -O quota' will take care of creating them
3970 result = __osd_create(info, obj, attr, hint, dof, th);
3972 if (fid_is_idif(fid) &&
3973 !osd_dev(dt->do_lu.lo_dev)->od_index_in_idif) {
3974 struct lu_fid *tfid = &info->oti_fid;
3975 struct ost_id *oi = &info->oti_ostid;
3977 fid_to_ostid(fid, oi);
3978 ostid_to_fid(tfid, oi, 0);
3980 result = osd_ea_fid_set(info, obj->oo_inode, tfid,
3981 LMAC_FID_ON_OST, 0);
3983 on_ost = fid_is_on_ost(info, osd_obj2dev(obj),
3985 result = osd_ea_fid_set(info, obj->oo_inode, fid,
3986 on_ost ? LMAC_FID_ON_OST : 0,
3989 if (obj->oo_dt.do_body_ops == &osd_body_ops_new)
3990 obj->oo_dt.do_body_ops = &osd_body_ops;
3993 if (!result && !CFS_FAIL_CHECK(OBD_FAIL_OSD_NO_OI_ENTRY))
3994 result = __osd_oi_insert(env, obj, fid, th);
3997 * a small optimization - dt_insert() isn't usually applied
3998 * to OST objects, so we don't need to cache OI mapping for
4001 if (result == 0 && on_ost == 0) {
4002 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4004 result = osd_idc_find_and_init(env, osd, obj);
4005 LASSERT(result == 0);
4008 LASSERT(ergo(result == 0,
4009 dt_object_exists(dt) && !dt_object_remote(dt)));
4010 LINVRNT(osd_invariant(obj));
4014 static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
4015 struct thandle *handle)
4017 struct osd_thandle *oh;
4019 /* it's possible that object doesn't exist yet */
4020 LASSERT(handle != NULL);
4022 oh = container_of0(handle, struct osd_thandle, ot_super);
4023 LASSERT(oh->ot_handle == NULL);
4025 osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
4026 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
4028 osd_idc_find_and_init(env, osd_dev(dt->do_lu.lo_dev), osd_dt_obj(dt));
4034 * Concurrency: @dt is write locked.
4036 static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
4039 struct osd_object *obj = osd_dt_obj(dt);
4040 struct inode *inode = obj->oo_inode;
4041 struct osd_thandle *oh;
4044 if (!dt_object_exists(dt) || obj->oo_destroyed)
4047 LINVRNT(osd_invariant(obj));
4048 LASSERT(!dt_object_remote(dt));
4049 LASSERT(osd_is_write_locked(env, obj));
4050 LASSERT(th != NULL);
4052 oh = container_of0(th, struct osd_thandle, ot_super);
4053 LASSERT(oh->ot_handle != NULL);
4055 osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
4057 CDEBUG(D_INODE, DFID" increase nlink %d\n",
4058 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
4060 * The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
4061 * (65000) subdirectories by storing "1" in i_nlink if the link count
4062 * would otherwise overflow. Directory tranversal tools understand
4063 * that (st_nlink == 1) indicates that the filesystem dose not track
4064 * hard links count on the directory, and will not abort subdirectory
4065 * scanning early once (st_nlink - 2) subdirs have been found.
4067 * This also has to properly handle the case of inodes with nlink == 0
4068 * in case they are being linked into the PENDING directory
4070 spin_lock(&obj->oo_guard);
4071 if (unlikely(inode->i_nlink == 0))
4072 /* inc_nlink from 0 may cause WARN_ON */
4073 set_nlink(inode, 1);
4075 ldiskfs_inc_count(oh->ot_handle, inode);
4076 if (!S_ISDIR(inode->i_mode))
4077 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
4079 spin_unlock(&obj->oo_guard);
4081 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4082 LINVRNT(osd_invariant(obj));
4084 osd_trans_exec_check(env, th, OSD_OT_REF_ADD);
4089 static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
4090 struct thandle *handle)
4092 struct osd_thandle *oh;
4094 if (!dt_object_exists(dt))
4097 LASSERT(!dt_object_remote(dt));
4098 LASSERT(handle != NULL);
4100 oh = container_of0(handle, struct osd_thandle, ot_super);
4101 LASSERT(oh->ot_handle == NULL);
4103 osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
4104 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
4110 * Concurrency: @dt is write locked.
4112 static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
4115 struct osd_object *obj = osd_dt_obj(dt);
4116 struct inode *inode = obj->oo_inode;
4117 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4118 struct osd_thandle *oh;
4120 if (!dt_object_exists(dt))
4123 LINVRNT(osd_invariant(obj));
4124 LASSERT(!dt_object_remote(dt));
4125 LASSERT(osd_is_write_locked(env, obj));
4126 LASSERT(th != NULL);
4128 oh = container_of0(th, struct osd_thandle, ot_super);
4129 LASSERT(oh->ot_handle != NULL);
4131 osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
4133 spin_lock(&obj->oo_guard);
4135 * That can be result of upgrade from old Lustre version and
4136 * applied only to local files. Just skip this ref_del call.
4137 * ext4_unlink() only treats this as a warning, don't LASSERT here.
4139 if (inode->i_nlink == 0) {
4140 CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
4141 D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
4142 ", maybe an upgraded file? (LU-3915)\n",
4143 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
4144 spin_unlock(&obj->oo_guard);
4148 CDEBUG(D_INODE, DFID" decrease nlink %d\n",
4149 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
4151 ldiskfs_dec_count(oh->ot_handle, inode);
4152 spin_unlock(&obj->oo_guard);
4154 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4155 LINVRNT(osd_invariant(obj));
4157 osd_trans_exec_check(env, th, OSD_OT_REF_DEL);
4163 * Concurrency: @dt is read locked.
4165 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
4166 struct lu_buf *buf, const char *name)
4168 struct osd_object *obj = osd_dt_obj(dt);
4169 struct inode *inode = obj->oo_inode;
4170 struct osd_thread_info *info = osd_oti_get(env);
4171 struct dentry *dentry = &info->oti_obj_dentry;
4172 bool cache_xattr = false;
4177 /* version get is not real XATTR but uses xattr API */
4178 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4179 dt_obj_version_t *ver = buf->lb_buf;
4182 * for version we are just using xattr API but change inode
4185 if (buf->lb_len == 0)
4186 return sizeof(dt_obj_version_t);
4188 if (buf->lb_len < sizeof(dt_obj_version_t))
4191 CDEBUG(D_INODE, "Get version %#llx for inode %lu\n",
4192 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
4194 *ver = LDISKFS_I(inode)->i_fs_version;
4196 return sizeof(dt_obj_version_t);
4199 if (!dt_object_exists(dt))
4202 LASSERT(!dt_object_remote(dt));
4203 LASSERT(inode->i_op != NULL);
4204 #ifdef HAVE_IOP_XATTR
4205 LASSERT(inode->i_op->getxattr != NULL);
4208 if (strcmp(name, XATTR_NAME_LOV) == 0 ||
4209 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0)
4213 rc = osd_oxc_get(obj, name, buf);
4218 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
4219 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4220 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4221 struct filter_fid *ff;
4222 struct ost_layout *ol;
4224 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4228 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
4231 if (buf->lb_len == 0 || !buf->lb_buf)
4234 if (buf->lb_len < rc)
4238 ol = &ff->ff_layout;
4239 ol->ol_stripe_count = cpu_to_le32(loa->loa_parent_fid.f_ver >>
4240 PFID_STRIPE_IDX_BITS);
4241 ol->ol_stripe_size = cpu_to_le32(loa->loa_stripe_size);
4242 loa->loa_parent_fid.f_ver &= PFID_STRIPE_COUNT_MASK;
4243 fid_cpu_to_le(&ff->ff_parent, &loa->loa_parent_fid);
4244 if (lma->lma_compat & LMAC_COMP_INFO) {
4245 ol->ol_comp_start = cpu_to_le64(loa->loa_comp_start);
4246 ol->ol_comp_end = cpu_to_le64(loa->loa_comp_end);
4247 ol->ol_comp_id = cpu_to_le32(loa->loa_comp_id);
4249 ol->ol_comp_start = 0;
4250 ol->ol_comp_end = 0;
4254 rc = __osd_xattr_get(inode, dentry, name,
4255 buf->lb_buf, buf->lb_len);
4259 if (rc == -ENOENT || rc == -ENODATA)
4260 osd_oxc_add(obj, name, NULL, 0);
4261 else if (rc > 0 && buf->lb_buf != NULL)
4262 osd_oxc_add(obj, name, buf->lb_buf, rc);
4268 static int osd_declare_xattr_set(const struct lu_env *env,
4269 struct dt_object *dt,
4270 const struct lu_buf *buf, const char *name,
4271 int fl, struct thandle *handle)
4273 struct osd_thandle *oh;
4275 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4277 LASSERT(handle != NULL);
4279 oh = container_of0(handle, struct osd_thandle, ot_super);
4280 LASSERT(oh->ot_handle == NULL);
4282 if (strcmp(name, XATTR_NAME_LMA) == 0) {
4284 * For non-upgrading case, the LMA is set first and
4285 * usually fit inode. But for upgrade case, the LMA
4286 * may be in another separated EA block.
4288 if (dt_object_exists(dt)) {
4289 if (fl == LU_XATTR_REPLACE)
4294 } else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4296 } else if (strcmp(name, XATTR_NAME_FID) == 0) {
4297 /* We may need to delete the old PFID EA. */
4298 credits = LDISKFS_MAXQUOTAS_DEL_BLOCKS(sb);
4299 if (fl == LU_XATTR_REPLACE)
4305 * If some name entry resides on remote MDT, then will create
4306 * agent entry under remote parent. On the other hand, if the
4307 * remote entry will be removed, then related agent entry may
4308 * need to be removed from the remote parent. So there may be
4309 * kinds of cases, let's declare enough credits. The credits
4310 * for create agent entry is enough for remove case.
4312 if (strcmp(name, XATTR_NAME_LINK) == 0) {
4313 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
4314 if (dt_object_exists(dt))
4315 credits += 1; /* For updating LMA */
4319 credits += osd_dto_credits_noquota[DTO_XATTR_SET];
4324 if (buf->lb_buf == NULL && dt_object_exists(dt)) {
4326 * learn xattr size from osd_xattr_get if
4327 * attribute has not been read yet
4329 buflen = __osd_xattr_get(
4330 osd_dt_obj(dt)->oo_inode,
4331 &osd_oti_get(env)->oti_obj_dentry,
4336 buflen = buf->lb_len;
4339 if (buflen > sb->s_blocksize) {
4340 credits += osd_calc_bkmap_credits(
4342 (buflen + sb->s_blocksize - 1) >>
4343 sb->s_blocksize_bits);
4347 * xattr set may involve inode quota change, reserve credits for
4348 * dquot_initialize()
4350 credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4353 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
4358 static int osd_xattr_set_pfid(const struct lu_env *env, struct osd_object *obj,
4359 const struct lu_buf *buf, int fl,
4360 struct thandle *handle)
4362 struct osd_thread_info *info = osd_oti_get(env);
4363 struct dentry *dentry = &info->oti_obj_dentry;
4364 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4365 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4366 struct inode *inode = obj->oo_inode;
4367 struct filter_fid *ff = buf->lb_buf;
4368 struct ost_layout *ol = &ff->ff_layout;
4369 int flags = XATTR_REPLACE;
4374 if (buf->lb_len != sizeof(*ff) && buf->lb_len != sizeof(struct lu_fid))
4377 rc = osd_get_lma(info, inode, dentry, loa);
4378 if (rc == -ENODATA) {
4379 /* Usually for upgarding from old device */
4380 lustre_loa_init(loa, lu_object_fid(&obj->oo_dt.do_lu),
4381 LMAC_FID_ON_OST, 0);
4382 flags = XATTR_CREATE;
4387 if (!rc && lma->lma_compat & LMAC_STRIPE_INFO) {
4388 if ((fl & LU_XATTR_CREATE) && !(fl & LU_XATTR_REPLACE))
4391 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256) {
4392 /* Separate PFID EA from LMA */
4393 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4394 lustre_lma_swab(lma);
4395 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4396 sizeof(*lma), XATTR_REPLACE);
4398 obj->oo_pfid_in_lma = 0;
4399 rc = LU_XATTR_CREATE;
4405 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256)
4409 * Old client does not send stripe information,
4410 * then store the PFID EA on disk separatedly.
4412 if (unlikely(buf->lb_len == sizeof(struct lu_fid) ||
4413 ol->ol_stripe_size == 0))
4416 /* Remove old PFID EA entry firstly. */
4417 ll_vfs_dq_init(inode);
4418 rc = osd_removexattr(dentry, inode, XATTR_NAME_FID);
4419 if (rc == -ENODATA) {
4420 if ((fl & LU_XATTR_REPLACE) && !(fl & LU_XATTR_CREATE))
4427 fid_le_to_cpu(&loa->loa_parent_fid, &ff->ff_parent);
4428 if (likely(ol->ol_stripe_size != 0)) {
4429 loa->loa_parent_fid.f_ver |= le32_to_cpu(ol->ol_stripe_count) <<
4430 PFID_STRIPE_IDX_BITS;
4431 loa->loa_stripe_size = le32_to_cpu(ol->ol_stripe_size);
4432 lma->lma_compat |= LMAC_STRIPE_INFO;
4433 if (ol->ol_comp_id != 0) {
4434 loa->loa_comp_id = le32_to_cpu(ol->ol_comp_id);
4435 loa->loa_comp_start = le64_to_cpu(ol->ol_comp_start);
4436 loa->loa_comp_end = le64_to_cpu(ol->ol_comp_end);
4437 lma->lma_compat |= LMAC_COMP_INFO;
4441 lustre_loa_swab(loa, false);
4443 /* Store the PFID EA inside LMA. */
4444 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa, sizeof(*loa),
4447 obj->oo_pfid_in_lma = 1;
4453 * In DNE environment, the object (in spite of regular file or directory)
4454 * and its name entry may reside on different MDTs. Under such case, we will
4455 * create an agent entry on the MDT where the object resides. The agent entry
4456 * references the object locally, that makes the object to be visible to the
4457 * userspace when mounted as 'ldiskfs' directly. Then the userspace tools,
4458 * such as 'tar' can handle the object properly.
4460 * We handle the agent entry during set linkEA that is the common interface
4461 * for both regular file and directroy, can handle kinds of cases, such as
4462 * create/link/unlink/rename, and so on.
4464 * NOTE: we can NOT do that when ea_{insert,delete} that is only for directory.
4466 * XXX: There are two known issues:
4467 * 1. For one object, we will create at most one agent entry even if there
4468 * may be more than one cross-MDTs hard links on the object. So the local
4469 * e2fsck may claim that the object's nlink is larger than the name entries
4470 * that reference such inode. And in further, the e2fsck will fix the nlink
4471 * attribute to match the local references. Then it will cause the object's
4472 * nlink attribute to be inconsistent with the global references. it is bad
4473 * but not fatal. The ref_del() can handle the zero-referenced case. On the
4474 * other hand, the global namespace LFSCK can repair the object's attribute
4475 * according to the linkEA.
4476 * 2. There may be too many hard links on the object as to its linkEA overflow,
4477 * then the linkEA entry for cross-MDTs reference may be discarded. If such
4478 * case happened, then at this point, we do not know whether there are some
4479 * cross-MDTs reference. But there are local references, it guarantees that
4480 * object is visible to userspace when mounted as 'ldiskfs'. That is enough.
4482 static int osd_xattr_handle_linkea(const struct lu_env *env,
4483 struct osd_device *osd,
4484 struct osd_object *obj,
4485 const struct lu_buf *buf,
4486 struct thandle *handle)
4488 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
4489 struct lu_fid *tfid = &osd_oti_get(env)->oti_fid3;
4490 struct linkea_data ldata = { .ld_buf = (struct lu_buf *)buf };
4491 struct lu_name tmpname;
4492 struct osd_thandle *oh;
4494 bool remote = false;
4498 oh = container_of0(handle, struct osd_thandle, ot_super);
4499 LASSERT(oh->ot_handle != NULL);
4501 rc = linkea_init_with_rec(&ldata);
4503 linkea_first_entry(&ldata);
4504 while (ldata.ld_lee != NULL && !remote) {
4505 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen,
4507 if (osd_remote_fid(env, osd, tfid) > 0)
4510 linkea_next_entry(&ldata);
4512 } else if (rc == -ENODATA) {
4518 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu) && !remote) {
4519 rc = osd_delete_from_remote_parent(env, osd, obj, oh, false);
4521 CERROR("%s: failed to remove agent entry for "DFID
4522 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4523 } else if (!lu_object_has_agent_entry(&obj->oo_dt.do_lu) && remote) {
4524 rc = osd_add_to_remote_parent(env, osd, obj, oh);
4526 CERROR("%s: failed to create agent entry for "DFID
4527 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4534 * Concurrency: @dt is write locked.
4536 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
4537 const struct lu_buf *buf, const char *name, int fl,
4538 struct thandle *handle)
4540 struct osd_object *obj = osd_dt_obj(dt);
4541 struct osd_device *osd = osd_obj2dev(obj);
4542 struct inode *inode = obj->oo_inode;
4543 struct osd_thread_info *info = osd_oti_get(env);
4553 /* version set is not real XATTR */
4554 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4555 dt_obj_version_t *version = buf->lb_buf;
4558 * for version we are just using xattr API but change inode
4561 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
4563 CDEBUG(D_INODE, "Set version %#llx (old %#llx) for inode %lu\n",
4564 *version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
4566 LDISKFS_I(inode)->i_fs_version = *version;
4568 * Version is set after all inode operations are finished,
4569 * so we should mark it dirty here
4571 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4576 CDEBUG(D_INODE, DFID" set xattr '%s' with size %zu\n",
4577 PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
4580 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4583 * For the OST device with 256 bytes inode size by default,
4584 * the PFID EA will be stored together with LMA EA to avoid
4585 * performance trouble. Otherwise the PFID EA can be stored
4586 * independently. LU-8998
4588 if (strcmp(name, XATTR_NAME_FID) == 0 && osd->od_is_ost &&
4589 (LDISKFS_INODE_SIZE(inode->i_sb) <= 256 || obj->oo_pfid_in_lma)) {
4590 LASSERT(buf->lb_buf);
4592 fl = osd_xattr_set_pfid(env, obj, buf, fl, handle);
4595 } else if (strcmp(name, XATTR_NAME_LMV) == 0) {
4596 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4597 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4599 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4603 lma->lma_incompat |= LMAI_STRIPED;
4604 lustre_lma_swab(lma);
4605 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4606 sizeof(*lma), XATTR_REPLACE);
4609 } else if (strcmp(name, XATTR_NAME_LINK) == 0) {
4610 LASSERT(!osd->od_is_ost);
4612 rc = osd_xattr_handle_linkea(env, osd, obj, buf, handle);
4617 if (fl & LU_XATTR_REPLACE)
4618 fs_flags |= XATTR_REPLACE;
4620 if (fl & LU_XATTR_CREATE)
4621 fs_flags |= XATTR_CREATE;
4623 rc = __osd_xattr_set(info, inode, name, buf->lb_buf, len, fs_flags);
4624 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4627 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4628 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4629 osd_oxc_add(obj, name, buf->lb_buf, buf->lb_len);
4635 * Concurrency: @dt is read locked.
4637 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
4638 const struct lu_buf *buf)
4640 struct osd_object *obj = osd_dt_obj(dt);
4641 struct inode *inode = obj->oo_inode;
4642 struct osd_thread_info *info = osd_oti_get(env);
4643 struct dentry *dentry = &info->oti_obj_dentry;
4645 if (!dt_object_exists(dt))
4648 LASSERT(!dt_object_remote(dt));
4649 LASSERT(inode->i_op != NULL);
4650 LASSERT(inode->i_op->listxattr != NULL);
4652 dentry->d_inode = inode;
4653 dentry->d_sb = inode->i_sb;
4654 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
4657 static int osd_declare_xattr_del(const struct lu_env *env,
4658 struct dt_object *dt, const char *name,
4659 struct thandle *handle)
4661 struct osd_thandle *oh;
4662 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4664 LASSERT(!dt_object_remote(dt));
4665 LASSERT(handle != NULL);
4667 oh = container_of0(handle, struct osd_thandle, ot_super);
4668 LASSERT(oh->ot_handle == NULL);
4670 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
4671 osd_dto_credits_noquota[DTO_XATTR_SET]);
4673 * xattr del may involve inode quota change, reserve credits for
4674 * dquot_initialize()
4676 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4682 * Concurrency: @dt is write locked.
4684 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
4685 const char *name, struct thandle *handle)
4687 struct osd_object *obj = osd_dt_obj(dt);
4688 struct inode *inode = obj->oo_inode;
4689 struct osd_thread_info *info = osd_oti_get(env);
4690 struct dentry *dentry = &info->oti_obj_dentry;
4693 if (!dt_object_exists(dt))
4696 LASSERT(!dt_object_remote(dt));
4697 LASSERT(inode->i_op != NULL);
4698 LASSERT(handle != NULL);
4699 #ifdef HAVE_IOP_XATTR
4700 LASSERT(inode->i_op->removexattr != NULL);
4703 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4705 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
4706 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
4708 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
4709 &info->oti_ost_attrs);
4711 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
4713 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4714 lustre_lma_swab(lma);
4715 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4716 sizeof(*lma), XATTR_REPLACE);
4718 obj->oo_pfid_in_lma = 0;
4721 ll_vfs_dq_init(inode);
4722 dentry->d_inode = inode;
4723 dentry->d_sb = inode->i_sb;
4724 rc = osd_removexattr(dentry, inode, name);
4727 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4730 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4731 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4732 osd_oxc_del(obj, name);
4737 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
4738 __u64 start, __u64 end)
4740 struct osd_object *obj = osd_dt_obj(dt);
4741 struct inode *inode = obj->oo_inode;
4742 struct osd_thread_info *info = osd_oti_get(env);
4743 struct dentry *dentry = &info->oti_obj_dentry;
4744 struct file *file = &info->oti_file;
4749 dentry->d_inode = inode;
4750 dentry->d_sb = inode->i_sb;
4751 file->f_path.dentry = dentry;
4752 file->f_mapping = inode->i_mapping;
4753 file->f_op = inode->i_fop;
4754 set_file_inode(file, inode);
4756 rc = ll_vfs_fsync_range(file, start, end, 0);
4761 static int osd_invalidate(const struct lu_env *env, struct dt_object *dt)
4770 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
4771 const struct dt_index_features *feat)
4773 struct iam_descr *descr;
4775 if (osd_object_is_root(o))
4776 return feat == &dt_directory_features;
4778 LASSERT(o->oo_dir != NULL);
4780 descr = o->oo_dir->od_container.ic_descr;
4781 if (feat == &dt_directory_features) {
4782 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
4787 return feat->dif_keysize_min <= descr->id_key_size &&
4788 descr->id_key_size <= feat->dif_keysize_max &&
4789 feat->dif_recsize_min <= descr->id_rec_size &&
4790 descr->id_rec_size <= feat->dif_recsize_max &&
4791 !(feat->dif_flags & (DT_IND_VARKEY |
4792 DT_IND_VARREC | DT_IND_NONUNQ)) &&
4793 ergo(feat->dif_flags & DT_IND_UPDATE,
4794 1 /* XXX check that object (and fs) is writable */);
4798 static int osd_iam_container_init(const struct lu_env *env,
4799 struct osd_object *obj,
4800 struct osd_directory *dir)
4802 struct iam_container *bag = &dir->od_container;
4805 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
4809 result = iam_container_setup(bag);
4811 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
4813 iam_container_fini(bag);
4820 * Concurrency: no external locking is necessary.
4822 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
4823 const struct dt_index_features *feat)
4827 struct osd_object *obj = osd_dt_obj(dt);
4829 LINVRNT(osd_invariant(obj));
4831 if (osd_object_is_root(obj)) {
4832 dt->do_index_ops = &osd_index_ea_ops;
4834 } else if (feat == &dt_directory_features) {
4835 dt->do_index_ops = &osd_index_ea_ops;
4836 if (obj->oo_inode == NULL || S_ISDIR(obj->oo_inode->i_mode))
4841 } else if (unlikely(feat == &dt_otable_features)) {
4842 dt->do_index_ops = &osd_otable_ops;
4844 } else if (unlikely(feat == &dt_acct_features)) {
4845 dt->do_index_ops = &osd_acct_index_ops;
4848 } else if (!osd_has_index(obj)) {
4849 struct osd_directory *dir;
4850 struct osd_device *osd = osd_obj2dev(obj);
4851 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
4856 spin_lock(&obj->oo_guard);
4857 if (obj->oo_dir == NULL)
4861 * Concurrent thread allocated container data.
4864 spin_unlock(&obj->oo_guard);
4866 * Now, that we have container data, serialize its
4869 down_write(&obj->oo_ext_idx_sem);
4871 * recheck under lock.
4874 if (osd_has_index(obj)) {
4879 result = osd_iam_container_init(env, obj, obj->oo_dir);
4880 if (result || feat == &dt_lfsck_namespace_features ||
4881 feat == &dt_lfsck_layout_orphan_features ||
4882 feat == &dt_lfsck_layout_dangling_features)
4885 result = osd_index_register(osd, fid,
4886 feat->dif_keysize_max,
4887 feat->dif_recsize_max);
4889 CWARN("%s: failed to register index "
4891 osd_name(osd), PFID(fid), result);
4892 else if (result > 0)
4895 CDEBUG(D_LFSCK, "%s: index object "DFID
4896 " (%d/%d) registered\n",
4897 osd_name(osd), PFID(fid),
4898 (int)feat->dif_keysize_max,
4899 (int)feat->dif_recsize_max);
4902 up_write(&obj->oo_ext_idx_sem);
4910 if (result == 0 && skip_iam == 0) {
4911 if (!osd_iam_index_probe(env, obj, feat))
4914 LINVRNT(osd_invariant(obj));
4919 static int osd_otable_it_attr_get(const struct lu_env *env,
4920 struct dt_object *dt,
4921 struct lu_attr *attr)
4927 static const struct dt_object_operations osd_obj_ops = {
4928 .do_read_lock = osd_read_lock,
4929 .do_write_lock = osd_write_lock,
4930 .do_read_unlock = osd_read_unlock,
4931 .do_write_unlock = osd_write_unlock,
4932 .do_write_locked = osd_write_locked,
4933 .do_attr_get = osd_attr_get,
4934 .do_declare_attr_set = osd_declare_attr_set,
4935 .do_attr_set = osd_attr_set,
4936 .do_ah_init = osd_ah_init,
4937 .do_declare_create = osd_declare_create,
4938 .do_create = osd_create,
4939 .do_declare_destroy = osd_declare_destroy,
4940 .do_destroy = osd_destroy,
4941 .do_index_try = osd_index_try,
4942 .do_declare_ref_add = osd_declare_ref_add,
4943 .do_ref_add = osd_ref_add,
4944 .do_declare_ref_del = osd_declare_ref_del,
4945 .do_ref_del = osd_ref_del,
4946 .do_xattr_get = osd_xattr_get,
4947 .do_declare_xattr_set = osd_declare_xattr_set,
4948 .do_xattr_set = osd_xattr_set,
4949 .do_declare_xattr_del = osd_declare_xattr_del,
4950 .do_xattr_del = osd_xattr_del,
4951 .do_xattr_list = osd_xattr_list,
4952 .do_object_sync = osd_object_sync,
4953 .do_invalidate = osd_invalidate,
4956 static const struct dt_object_operations osd_obj_otable_it_ops = {
4957 .do_attr_get = osd_otable_it_attr_get,
4958 .do_index_try = osd_index_try,
4961 static int osd_index_declare_iam_delete(const struct lu_env *env,
4962 struct dt_object *dt,
4963 const struct dt_key *key,
4964 struct thandle *handle)
4966 struct osd_thandle *oh;
4968 oh = container_of0(handle, struct osd_thandle, ot_super);
4969 LASSERT(oh->ot_handle == NULL);
4971 /* Recycle may cause additional three blocks to be changed. */
4972 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
4973 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
4979 * delete a (key, value) pair from index \a dt specified by \a key
4981 * \param dt osd index object
4982 * \param key key for index
4983 * \param rec record reference
4984 * \param handle transaction handler
4987 * \retval -ve failure
4989 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
4990 const struct dt_key *key,
4991 struct thandle *handle)
4993 struct osd_thread_info *oti = osd_oti_get(env);
4994 struct osd_object *obj = osd_dt_obj(dt);
4995 struct osd_thandle *oh;
4996 struct iam_path_descr *ipd;
4997 struct iam_container *bag = &obj->oo_dir->od_container;
5002 if (!dt_object_exists(dt))
5005 LINVRNT(osd_invariant(obj));
5006 LASSERT(!dt_object_remote(dt));
5007 LASSERT(bag->ic_object == obj->oo_inode);
5008 LASSERT(handle != NULL);
5010 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
5012 ipd = osd_idx_ipd_get(env, bag);
5013 if (unlikely(ipd == NULL))
5016 oh = container_of0(handle, struct osd_thandle, ot_super);
5017 LASSERT(oh->ot_handle != NULL);
5018 LASSERT(oh->ot_handle->h_transaction != NULL);
5020 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5021 /* swab quota uid/gid provided by caller */
5022 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5023 key = (const struct dt_key *)&oti->oti_quota_id;
5026 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
5027 osd_ipd_put(env, bag, ipd);
5028 LINVRNT(osd_invariant(obj));
5029 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
5033 static int osd_index_declare_ea_delete(const struct lu_env *env,
5034 struct dt_object *dt,
5035 const struct dt_key *key,
5036 struct thandle *handle)
5038 struct osd_thandle *oh;
5039 struct inode *inode;
5044 LASSERT(!dt_object_remote(dt));
5045 LASSERT(handle != NULL);
5047 oh = container_of0(handle, struct osd_thandle, ot_super);
5048 LASSERT(oh->ot_handle == NULL);
5050 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE];
5051 osd_trans_declare_op(env, oh, OSD_OT_DELETE, credits);
5053 inode = osd_dt_obj(dt)->oo_inode;
5057 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
5058 i_projid_read(inode), 0, oh, osd_dt_obj(dt),
5063 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
5066 struct osd_fid_pack *rec;
5069 if (de->file_type & LDISKFS_DIRENT_LUFID) {
5070 rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
5071 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
5072 if (rc == 0 && unlikely(!fid_is_sane((struct lu_fid *)fid)))
5078 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
5079 const struct lu_fid *fid)
5081 struct seq_server_site *ss = osd_seq_site(osd);
5085 /* FID seqs not in FLDB, must be local seq */
5086 if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
5090 * If FLD is not being initialized yet, it only happens during the
5091 * initialization, likely during mgs initialization, and we assume
5092 * this is local FID.
5094 if (ss == NULL || ss->ss_server_fld == NULL)
5097 /* Only check the local FLDB here */
5098 if (osd_seq_exists(env, osd, fid_seq(fid)))
5104 static void osd_take_care_of_agent(const struct lu_env *env,
5105 struct osd_device *osd,
5106 struct osd_thandle *oh,
5107 struct ldiskfs_dir_entry_2 *de)
5109 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
5110 struct osd_idmap_cache *idc;
5111 int rc, schedule = 0;
5113 LASSERT(de != NULL);
5115 rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
5116 if (likely(rc == 0)) {
5117 idc = osd_idc_find_or_init(env, osd, fid);
5118 if (IS_ERR(idc) || idc->oic_remote)
5120 } else if (rc == -ENODATA) {
5122 * can't get FID, postpone to the end of the
5123 * transaction when iget() is safe
5127 CERROR("%s: can't get FID: rc = %d\n", osd_name(osd), rc);
5130 osd_schedule_agent_inode_removal(env, oh,
5131 le32_to_cpu(de->inode));
5135 * Index delete function for interoperability mode (b11826).
5136 * It will remove the directory entry added by osd_index_ea_insert().
5137 * This entry is needed to maintain name->fid mapping.
5139 * \param key, key i.e. file entry to be deleted
5141 * \retval 0, on success
5142 * \retval -ve, on error
5144 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
5145 const struct dt_key *key, struct thandle *handle)
5147 struct osd_object *obj = osd_dt_obj(dt);
5148 struct inode *dir = obj->oo_inode;
5149 struct dentry *dentry;
5150 struct osd_thandle *oh;
5151 struct ldiskfs_dir_entry_2 *de = NULL;
5152 struct buffer_head *bh;
5153 struct htree_lock *hlock = NULL;
5154 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5159 if (!dt_object_exists(dt))
5162 LINVRNT(osd_invariant(obj));
5163 LASSERT(!dt_object_remote(dt));
5164 LASSERT(handle != NULL);
5166 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
5168 oh = container_of(handle, struct osd_thandle, ot_super);
5169 LASSERT(oh->ot_handle != NULL);
5170 LASSERT(oh->ot_handle->h_transaction != NULL);
5172 ll_vfs_dq_init(dir);
5173 dentry = osd_child_dentry_get(env, obj,
5174 (char *)key, strlen((char *)key));
5176 if (obj->oo_hl_head != NULL) {
5177 hlock = osd_oti_get(env)->oti_hlock;
5178 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5179 dir, LDISKFS_HLOCK_DEL);
5181 down_write(&obj->oo_ext_idx_sem);
5184 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5187 * If this is not the ".." entry, it might be a remote DNE
5188 * entry and we need to check if the FID is for a remote
5189 * MDT. If the FID is not in the directory entry (e.g.
5190 * upgraded 1.8 filesystem without dirdata enabled) then
5191 * we need to get the FID from the LMA. For a remote directory
5192 * there HAS to be an LMA, it cannot be an IGIF inode in this
5195 * Delete the entry before the agent inode in order to
5196 * simplify error handling. At worst an error after deleting
5197 * the entry first might leak the agent inode afterward. The
5198 * reverse would need filesystem abort in case of error deleting
5199 * the entry after the agent had been removed, or leave a
5200 * dangling entry pointing at a random inode.
5202 if (strcmp((char *)key, dotdot) != 0)
5203 osd_take_care_of_agent(env, osd, oh, de);
5204 rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
5210 ldiskfs_htree_unlock(hlock);
5212 up_write(&obj->oo_ext_idx_sem);
5216 LASSERT(osd_invariant(obj));
5217 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
5222 * Lookup index for \a key and copy record to \a rec.
5224 * \param dt osd index object
5225 * \param key key for index
5226 * \param rec record reference
5228 * \retval +ve success : exact mach
5229 * \retval 0 return record with key not greater than \a key
5230 * \retval -ve failure
5232 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
5233 struct dt_rec *rec, const struct dt_key *key)
5235 struct osd_object *obj = osd_dt_obj(dt);
5236 struct iam_path_descr *ipd;
5237 struct iam_container *bag = &obj->oo_dir->od_container;
5238 struct osd_thread_info *oti = osd_oti_get(env);
5239 struct iam_iterator *it = &oti->oti_idx_it;
5240 struct iam_rec *iam_rec;
5245 if (!dt_object_exists(dt))
5248 LASSERT(osd_invariant(obj));
5249 LASSERT(!dt_object_remote(dt));
5250 LASSERT(bag->ic_object == obj->oo_inode);
5252 ipd = osd_idx_ipd_get(env, bag);
5256 /* got ipd now we can start iterator. */
5257 iam_it_init(it, bag, 0, ipd);
5259 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5260 /* swab quota uid/gid provided by caller */
5261 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5262 key = (const struct dt_key *)&oti->oti_quota_id;
5265 rc = iam_it_get(it, (struct iam_key *)key);
5267 if (S_ISDIR(obj->oo_inode->i_mode))
5268 iam_rec = (struct iam_rec *)oti->oti_ldp;
5270 iam_rec = (struct iam_rec *)rec;
5272 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
5274 if (S_ISDIR(obj->oo_inode->i_mode))
5275 osd_fid_unpack((struct lu_fid *)rec,
5276 (struct osd_fid_pack *)iam_rec);
5277 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
5278 osd_quota_unpack(obj, rec);
5283 osd_ipd_put(env, bag, ipd);
5285 LINVRNT(osd_invariant(obj));
5290 static int osd_index_declare_iam_insert(const struct lu_env *env,
5291 struct dt_object *dt,
5292 const struct dt_rec *rec,
5293 const struct dt_key *key,
5294 struct thandle *handle)
5296 struct osd_thandle *oh;
5298 LASSERT(handle != NULL);
5300 oh = container_of0(handle, struct osd_thandle, ot_super);
5301 LASSERT(oh->ot_handle == NULL);
5303 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
5304 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
5310 * Inserts (key, value) pair in \a dt index object.
5312 * \param dt osd index object
5313 * \param key key for index
5314 * \param rec record reference
5315 * \param th transaction handler
5318 * \retval -ve failure
5320 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
5321 const struct dt_rec *rec,
5322 const struct dt_key *key, struct thandle *th)
5324 struct osd_object *obj = osd_dt_obj(dt);
5325 struct iam_path_descr *ipd;
5326 struct osd_thandle *oh;
5327 struct iam_container *bag;
5328 struct osd_thread_info *oti = osd_oti_get(env);
5329 struct iam_rec *iam_rec;
5334 if (!dt_object_exists(dt))
5337 LINVRNT(osd_invariant(obj));
5338 LASSERT(!dt_object_remote(dt));
5340 bag = &obj->oo_dir->od_container;
5341 LASSERT(bag->ic_object == obj->oo_inode);
5342 LASSERT(th != NULL);
5344 osd_trans_exec_op(env, th, OSD_OT_INSERT);
5346 ipd = osd_idx_ipd_get(env, bag);
5347 if (unlikely(ipd == NULL))
5350 oh = container_of0(th, struct osd_thandle, ot_super);
5351 LASSERT(oh->ot_handle != NULL);
5352 LASSERT(oh->ot_handle->h_transaction != NULL);
5353 if (S_ISDIR(obj->oo_inode->i_mode)) {
5354 iam_rec = (struct iam_rec *)oti->oti_ldp;
5355 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec,
5357 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5358 /* pack quota uid/gid */
5359 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5360 key = (const struct dt_key *)&oti->oti_quota_id;
5361 /* pack quota record */
5362 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
5363 iam_rec = (struct iam_rec *)rec;
5365 iam_rec = (struct iam_rec *)rec;
5368 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
5370 osd_ipd_put(env, bag, ipd);
5371 LINVRNT(osd_invariant(obj));
5372 osd_trans_exec_check(env, th, OSD_OT_INSERT);
5377 * Calls ldiskfs_add_entry() to add directory entry
5378 * into the directory. This is required for
5379 * interoperability mode (b11826)
5381 * \retval 0, on success
5382 * \retval -ve, on error
5384 static int __osd_ea_add_rec(struct osd_thread_info *info,
5385 struct osd_object *pobj, struct inode *cinode,
5386 const char *name, const struct lu_fid *fid,
5387 struct htree_lock *hlock, struct thandle *th)
5389 struct ldiskfs_dentry_param *ldp;
5390 struct dentry *child;
5391 struct osd_thandle *oth;
5394 oth = container_of(th, struct osd_thandle, ot_super);
5395 LASSERT(oth->ot_handle != NULL);
5396 LASSERT(oth->ot_handle->h_transaction != NULL);
5397 LASSERT(pobj->oo_inode);
5399 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
5400 if (unlikely(pobj->oo_inode ==
5401 osd_sb(osd_obj2dev(pobj))->s_root->d_inode))
5404 osd_get_ldiskfs_dirent_param(ldp, fid);
5405 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
5406 child->d_fsdata = (void *)ldp;
5407 ll_vfs_dq_init(pobj->oo_inode);
5408 rc = osd_ldiskfs_add_entry(info, osd_obj2dev(pobj), oth->ot_handle,
5409 child, cinode, hlock);
5410 if (rc == 0 && OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_TYPE)) {
5411 struct ldiskfs_dir_entry_2 *de;
5412 struct buffer_head *bh;
5415 bh = osd_ldiskfs_find_entry(pobj->oo_inode, &child->d_name, &de,
5418 rc1 = ldiskfs_journal_get_write_access(oth->ot_handle,
5421 if (S_ISDIR(cinode->i_mode))
5422 de->file_type = LDISKFS_DIRENT_LUFID |
5423 LDISKFS_FT_REG_FILE;
5425 de->file_type = LDISKFS_DIRENT_LUFID |
5427 ldiskfs_handle_dirty_metadata(oth->ot_handle,
5438 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
5439 * into the directory.Also sets flags into osd object to
5440 * indicate dot and dotdot are created. This is required for
5441 * interoperability mode (b11826)
5443 * \param dir directory for dot and dotdot fixup.
5444 * \param obj child object for linking
5446 * \retval 0, on success
5447 * \retval -ve, on error
5449 static int osd_add_dot_dotdot(struct osd_thread_info *info,
5450 struct osd_object *dir,
5451 struct inode *parent_dir, const char *name,
5452 const struct lu_fid *dot_fid,
5453 const struct lu_fid *dot_dot_fid,
5456 struct inode *inode = dir->oo_inode;
5457 struct osd_thandle *oth;
5460 oth = container_of(th, struct osd_thandle, ot_super);
5461 LASSERT(oth->ot_handle->h_transaction != NULL);
5462 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
5464 if (strcmp(name, dot) == 0) {
5465 if (dir->oo_compat_dot_created) {
5468 LASSERT(inode->i_ino == parent_dir->i_ino);
5469 dir->oo_compat_dot_created = 1;
5472 } else if (strcmp(name, dotdot) == 0) {
5473 if (!dir->oo_compat_dot_created)
5475 /* in case of rename, dotdot is already created */
5476 if (dir->oo_compat_dotdot_created) {
5477 return __osd_ea_add_rec(info, dir, parent_dir, name,
5478 dot_dot_fid, NULL, th);
5481 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_PARENT)) {
5482 struct lu_fid tfid = *dot_dot_fid;
5485 result = osd_add_dot_dotdot_internal(info,
5486 dir->oo_inode, parent_dir, dot_fid,
5489 result = osd_add_dot_dotdot_internal(info,
5490 dir->oo_inode, parent_dir, dot_fid,
5495 dir->oo_compat_dotdot_created = 1;
5503 * It will call the appropriate osd_add* function and return the
5504 * value, return by respective functions.
5506 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
5507 struct inode *cinode, const char *name,
5508 const struct lu_fid *fid, struct thandle *th)
5510 struct osd_thread_info *info = osd_oti_get(env);
5511 struct htree_lock *hlock;
5514 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
5516 if (name[0] == '.' && (name[1] == '\0' ||
5517 (name[1] == '.' && name[2] == '\0'))) {
5518 if (hlock != NULL) {
5519 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5522 down_write(&pobj->oo_ext_idx_sem);
5525 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
5526 lu_object_fid(&pobj->oo_dt.do_lu),
5529 if (hlock != NULL) {
5530 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5531 pobj->oo_inode, LDISKFS_HLOCK_ADD);
5533 down_write(&pobj->oo_ext_idx_sem);
5536 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
5537 struct lu_fid *tfid = &info->oti_fid;
5541 rc = __osd_ea_add_rec(info, pobj, cinode, name,
5544 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
5549 ldiskfs_htree_unlock(hlock);
5551 up_write(&pobj->oo_ext_idx_sem);
5557 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
5558 struct osd_idmap_cache *oic)
5560 struct lustre_scrub *scrub = &dev->od_scrub.os_scrub;
5561 struct lu_fid *fid = &oic->oic_fid;
5562 struct osd_inode_id *id = &oic->oic_lid;
5563 struct inode *inode = NULL;
5570 if (!fid_is_norm(fid) && !fid_is_igif(fid))
5573 if (thread_is_running(&scrub->os_thread) &&
5574 scrub->os_pos_current > id->oii_ino)
5577 if (dev->od_auto_scrub_interval == AS_NEVER ||
5578 ktime_get_real_seconds() <
5579 scrub->os_file.sf_time_last_complete + dev->od_auto_scrub_interval)
5583 rc = osd_oi_lookup(oti, dev, fid, &oti->oti_id, 0);
5584 if (rc == -ENOENT) {
5585 __u32 gen = id->oii_gen;
5591 inode = osd_iget(oti, dev, id);
5592 /* The inode has been removed (by race maybe). */
5593 if (IS_ERR(inode)) {
5594 rc = PTR_ERR(inode);
5596 RETURN(rc == -ESTALE ? -ENOENT : rc);
5599 /* The OI mapping is lost. */
5600 if (gen != OSD_OII_NOGEN)
5604 * The inode may has been reused by others, we do not know,
5605 * leave it to be handled by subsequent osd_fid_lookup().
5608 } else if (rc || osd_id_eq(id, &oti->oti_id)) {
5615 if (thread_is_running(&scrub->os_thread)) {
5616 if (inode == NULL) {
5617 inode = osd_iget(oti, dev, id);
5618 /* The inode has been removed (by race maybe). */
5619 if (IS_ERR(inode)) {
5620 rc = PTR_ERR(inode);
5622 RETURN(rc == -ESTALE ? -ENOENT : rc);
5626 rc = osd_oii_insert(dev, oic, insert);
5628 * There is race condition between osd_oi_lookup and OI scrub.
5629 * The OI scrub finished just after osd_oi_lookup() failure.
5630 * Under such case, it is unnecessary to trigger OI scrub again,
5631 * but try to call osd_oi_lookup() again.
5633 if (unlikely(rc == -EAGAIN))
5636 if (!S_ISDIR(inode->i_mode))
5639 rc = osd_check_lmv(oti, dev, inode, oic);
5644 if (dev->od_auto_scrub_interval != AS_NEVER && ++once == 1) {
5645 rc = osd_scrub_start(oti->oti_env, dev, SS_AUTO_PARTIAL |
5646 SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT);
5647 CDEBUG(D_LFSCK | D_CONSOLE | D_WARNING,
5648 "%s: trigger partial OI scrub for RPC inconsistency "
5649 "checking FID "DFID": rc = %d\n",
5650 osd_dev2name(dev), PFID(fid), rc);
5651 if (rc == 0 || rc == -EALREADY)
5664 static int osd_fail_fid_lookup(struct osd_thread_info *oti,
5665 struct osd_device *dev,
5666 struct osd_idmap_cache *oic,
5667 struct lu_fid *fid, __u32 ino)
5669 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
5670 struct inode *inode;
5673 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
5674 inode = osd_iget(oti, dev, &oic->oic_lid);
5675 if (IS_ERR(inode)) {
5676 fid_zero(&oic->oic_fid);
5677 return PTR_ERR(inode);
5680 rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, loa);
5683 fid_zero(&oic->oic_fid);
5685 *fid = oic->oic_fid = loa->loa_lma.lma_self_fid;
5689 void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
5690 struct osd_inode_id *id, const struct lu_fid *fid)
5692 CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
5693 id->oii_ino, id->oii_gen, info);
5694 info->oti_cache.oic_lid = *id;
5695 info->oti_cache.oic_fid = *fid;
5696 info->oti_cache.oic_dev = osd;
5700 * Get parent FID from the linkEA.
5702 * For a directory which parent resides on remote MDT, to satisfy the
5703 * local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
5704 * the other hand, to make the lookup(..) on the directory can return
5705 * the real parent FID, we append the real parent FID after its ".."
5706 * name entry in the /REMOTE_PARENT_DIR.
5708 * Unfortunately, such PFID-in-dirent cannot be preserved via file-level
5709 * backup. So after the restore, we cannot get the right parent FID from
5710 * its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
5711 * we have stored the real parent FID in the directory object's linkEA,
5712 * we can parse the linkEA for the real parent FID.
5714 * \param[in] env pointer to the thread context
5715 * \param[in] obj pointer to the object to be handled
5716 * \param[out]fid pointer to the buffer to hold the parent FID
5718 * \retval 0 for getting the real parent FID successfully
5719 * \retval negative error number on failure
5721 static int osd_get_pfid_from_linkea(const struct lu_env *env,
5722 struct osd_object *obj,
5725 struct osd_thread_info *oti = osd_oti_get(env);
5726 struct lu_buf *buf = &oti->oti_big_buf;
5727 struct dentry *dentry = &oti->oti_obj_dentry;
5728 struct inode *inode = obj->oo_inode;
5729 struct linkea_data ldata = { NULL };
5735 if (!S_ISDIR(inode->i_mode))
5739 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5740 buf->lb_buf, buf->lb_len);
5741 if (rc == -ERANGE) {
5742 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5745 lu_buf_realloc(buf, rc);
5746 if (buf->lb_buf == NULL)
5753 if (unlikely(rc == 0))
5759 if (unlikely(buf->lb_buf == NULL)) {
5760 lu_buf_realloc(buf, rc);
5761 if (buf->lb_buf == NULL)
5768 rc = linkea_init_with_rec(&ldata);
5770 linkea_first_entry(&ldata);
5771 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
5777 static int osd_verify_ent_by_linkea(const struct lu_env *env,
5778 struct inode *inode,
5779 const struct lu_fid *pfid,
5780 const char *name, const int namelen)
5782 struct osd_thread_info *oti = osd_oti_get(env);
5783 struct lu_buf *buf = &oti->oti_big_buf;
5784 struct dentry *dentry = &oti->oti_obj_dentry;
5785 struct linkea_data ldata = { NULL };
5786 struct lu_name cname = { .ln_name = name,
5787 .ln_namelen = namelen };
5793 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5794 buf->lb_buf, buf->lb_len);
5796 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK, NULL, 0);
5801 if (unlikely(rc == 0))
5804 if (buf->lb_len < rc) {
5805 lu_buf_realloc(buf, rc);
5806 if (buf->lb_buf == NULL)
5813 rc = linkea_init_with_rec(&ldata);
5815 rc = linkea_links_find(&ldata, &cname, pfid);
5821 * Calls ->lookup() to find dentry. From dentry get inode and
5822 * read inode's ea to get fid. This is required for interoperability
5825 * \retval 0, on success
5826 * \retval -ve, on error
5828 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
5829 struct dt_rec *rec, const struct dt_key *key)
5831 struct inode *dir = obj->oo_inode;
5832 struct dentry *dentry;
5833 struct ldiskfs_dir_entry_2 *de;
5834 struct buffer_head *bh;
5835 struct lu_fid *fid = (struct lu_fid *)rec;
5836 struct htree_lock *hlock = NULL;
5842 LASSERT(dir->i_op != NULL);
5843 LASSERT(dir->i_op->lookup != NULL);
5845 dentry = osd_child_dentry_get(env, obj,
5846 (char *)key, strlen((char *)key));
5848 if (obj->oo_hl_head != NULL) {
5849 hlock = osd_oti_get(env)->oti_hlock;
5850 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5851 dir, LDISKFS_HLOCK_LOOKUP);
5853 down_read(&obj->oo_ext_idx_sem);
5856 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5858 struct osd_thread_info *oti = osd_oti_get(env);
5859 struct osd_inode_id *id = &oti->oti_id;
5860 struct osd_idmap_cache *oic = &oti->oti_cache;
5861 struct osd_device *dev = osd_obj2dev(obj);
5863 ino = le32_to_cpu(de->inode);
5864 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
5866 rc = osd_fail_fid_lookup(oti, dev, oic, fid, ino);
5870 rc = osd_get_fid_from_dentry(de, rec);
5872 /* done with de, release bh */
5875 if (unlikely(is_remote_parent_ino(dev, ino))) {
5876 const char *name = (const char *)key;
5879 * If the parent is on remote MDT, and there
5880 * is no FID-in-dirent, then we have to get
5881 * the parent FID from the linkEA.
5883 if (likely(strlen(name) == 2 &&
5884 name[0] == '.' && name[1] == '.'))
5885 rc = osd_get_pfid_from_linkea(env, obj,
5888 rc = osd_ea_fid_get(env, obj, ino, fid, id);
5891 osd_id_gen(id, ino, OSD_OII_NOGEN);
5894 if (rc != 0 || osd_remote_fid(env, dev, fid)) {
5895 fid_zero(&oic->oic_fid);
5900 osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id, fid);
5901 rc = osd_consistency_check(oti, dev, oic);
5903 fid_zero(&oic->oic_fid);
5905 /* Other error should not affect lookup result. */
5915 ldiskfs_htree_unlock(hlock);
5917 up_read(&obj->oo_ext_idx_sem);
5921 static int osd_index_declare_ea_insert(const struct lu_env *env,
5922 struct dt_object *dt,
5923 const struct dt_rec *rec,
5924 const struct dt_key *key,
5925 struct thandle *handle)
5927 struct osd_thandle *oh;
5928 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5929 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
5930 const struct lu_fid *fid = rec1->rec_fid;
5931 int credits, rc = 0;
5932 struct osd_idmap_cache *idc;
5936 LASSERT(!dt_object_remote(dt));
5937 LASSERT(handle != NULL);
5938 LASSERT(fid != NULL);
5939 LASSERT(rec1->rec_type != 0);
5941 oh = container_of0(handle, struct osd_thandle, ot_super);
5942 LASSERT(oh->ot_handle == NULL);
5944 credits = osd_dto_credits_noquota[DTO_INDEX_INSERT];
5947 * we can't call iget() while a transactions is running
5948 * (this can lead to a deadlock), but we need to know
5949 * inum and object type. so we find this information at
5950 * declaration and cache in per-thread info
5952 idc = osd_idc_find_or_init(env, osd, fid);
5954 RETURN(PTR_ERR(idc));
5955 if (idc->oic_remote) {
5957 * a reference to remote inode is represented by an
5958 * agent inode which we have to create
5960 credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
5961 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
5964 osd_trans_declare_op(env, oh, OSD_OT_INSERT, credits);
5966 if (osd_dt_obj(dt)->oo_inode != NULL) {
5967 struct inode *inode = osd_dt_obj(dt)->oo_inode;
5970 * We ignore block quota on meta pool (MDTs), so needn't
5971 * calculate how many blocks will be consumed by this index
5974 rc = osd_declare_inode_qid(env, i_uid_read(inode),
5976 i_projid_read(inode), 0,
5977 oh, osd_dt_obj(dt), NULL,
5982 #ifdef HAVE_PROJECT_QUOTA
5984 * Reserve credits for local agent inode to transfer
5985 * to 0, quota enforcement is ignored in this case.
5987 if (idc->oic_remote &&
5988 LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
5989 i_projid_read(inode) != 0)
5990 rc = osd_declare_attr_qid(env, osd_dt_obj(dt), oh,
5991 0, i_projid_read(inode),
5992 0, false, PRJQUOTA, true);
6000 * Index add function for interoperability mode (b11826).
6001 * It will add the directory entry.This entry is needed to
6002 * maintain name->fid mapping.
6004 * \param key it is key i.e. file entry to be inserted
6005 * \param rec it is value of given key i.e. fid
6007 * \retval 0, on success
6008 * \retval -ve, on error
6010 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
6011 const struct dt_rec *rec,
6012 const struct dt_key *key, struct thandle *th)
6014 struct osd_object *obj = osd_dt_obj(dt);
6015 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
6016 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
6017 const struct lu_fid *fid = rec1->rec_fid;
6018 const char *name = (const char *)key;
6019 struct osd_thread_info *oti = osd_oti_get(env);
6020 struct inode *child_inode = NULL;
6021 struct osd_idmap_cache *idc;
6026 if (!dt_object_exists(dt))
6029 LASSERT(osd_invariant(obj));
6030 LASSERT(!dt_object_remote(dt));
6031 LASSERT(th != NULL);
6033 osd_trans_exec_op(env, th, OSD_OT_INSERT);
6035 LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
6037 idc = osd_idc_find(env, osd, fid);
6038 if (unlikely(idc == NULL)) {
6039 idc = osd_idc_find_or_init(env, osd, fid);
6042 * this dt_insert() wasn't declared properly, so
6043 * FID is missing in OI cache. we better do not
6044 * lookup FID in FLDB/OI and don't risk to deadlock,
6045 * but in some special cases (lfsck testing, etc)
6046 * it's much simpler than fixing a caller.
6048 * normally this error should be placed after the first
6049 * find, but migrate may attach source stripes to
6050 * target, which doesn't create stripes.
6052 CERROR("%s: "DFID" wasn't declared for insert\n",
6053 osd_name(osd), PFID(fid));
6055 RETURN(PTR_ERR(idc));
6059 if (idc->oic_remote) {
6060 /* Insert remote entry */
6061 if (strcmp(name, dotdot) == 0 && strlen(name) == 2) {
6063 igrab(osd->od_mdt_map->omm_remote_parent->d_inode);
6065 child_inode = osd_create_local_agent_inode(env, osd,
6066 obj, fid, rec1->rec_type & S_IFMT, th);
6067 if (IS_ERR(child_inode))
6068 RETURN(PTR_ERR(child_inode));
6071 /* Insert local entry */
6072 if (unlikely(idc->oic_lid.oii_ino == 0)) {
6073 /* for a reason OI cache wasn't filled properly */
6074 CERROR("%s: OIC for "DFID" isn't filled\n",
6075 osd_name(osd), PFID(fid));
6078 child_inode = oti->oti_inode;
6079 if (unlikely(child_inode == NULL)) {
6080 struct ldiskfs_inode_info *lii;
6085 child_inode = oti->oti_inode = &lii->vfs_inode;
6087 child_inode->i_sb = osd_sb(osd);
6088 child_inode->i_ino = idc->oic_lid.oii_ino;
6089 child_inode->i_mode = rec1->rec_type & S_IFMT;
6092 rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
6094 CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
6095 obj->oo_inode->i_ino, name, child_inode->i_ino, rc);
6097 if (child_inode && child_inode != oti->oti_inode)
6099 LASSERT(osd_invariant(obj));
6100 osd_trans_exec_check(env, th, OSD_OT_INSERT);
6105 * Initialize osd Iterator for given osd index object.
6107 * \param dt osd index object
6110 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
6111 struct dt_object *dt,
6114 struct osd_it_iam *it;
6115 struct osd_object *obj = osd_dt_obj(dt);
6116 struct lu_object *lo = &dt->do_lu;
6117 struct iam_path_descr *ipd;
6118 struct iam_container *bag = &obj->oo_dir->od_container;
6120 if (!dt_object_exists(dt))
6121 return ERR_PTR(-ENOENT);
6125 return ERR_PTR(-ENOMEM);
6127 ipd = osd_it_ipd_get(env, bag);
6128 if (likely(ipd != NULL)) {
6132 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
6133 return (struct dt_it *)it;
6136 return ERR_PTR(-ENOMEM);
6141 * free given Iterator.
6143 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
6145 struct osd_it_iam *it = (struct osd_it_iam *)di;
6146 struct osd_object *obj = it->oi_obj;
6148 iam_it_fini(&it->oi_it);
6149 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
6150 osd_object_put(env, obj);
6155 * Move Iterator to record specified by \a key
6157 * \param di osd iterator
6158 * \param key key for index
6160 * \retval +ve di points to record with least key not larger than key
6161 * \retval 0 di points to exact matched key
6162 * \retval -ve failure
6165 static int osd_it_iam_get(const struct lu_env *env,
6166 struct dt_it *di, const struct dt_key *key)
6168 struct osd_thread_info *oti = osd_oti_get(env);
6169 struct osd_it_iam *it = (struct osd_it_iam *)di;
6171 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
6172 /* swab quota uid/gid */
6173 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
6174 key = (struct dt_key *)&oti->oti_quota_id;
6177 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
6183 * \param di osd iterator
6185 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
6187 struct osd_it_iam *it = (struct osd_it_iam *)di;
6189 iam_it_put(&it->oi_it);
6193 * Move iterator by one record
6195 * \param di osd iterator
6197 * \retval +1 end of container reached
6199 * \retval -ve failure
6202 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
6204 struct osd_it_iam *it = (struct osd_it_iam *)di;
6206 return iam_it_next(&it->oi_it);
6210 * Return pointer to the key under iterator.
6213 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
6214 const struct dt_it *di)
6216 struct osd_thread_info *oti = osd_oti_get(env);
6217 struct osd_it_iam *it = (struct osd_it_iam *)di;
6218 struct osd_object *obj = it->oi_obj;
6221 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
6223 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
6224 /* swab quota uid/gid */
6225 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
6226 key = (struct dt_key *)&oti->oti_quota_id;
6233 * Return size of key under iterator (in bytes)
6236 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
6238 struct osd_it_iam *it = (struct osd_it_iam *)di;
6240 return iam_it_key_size(&it->oi_it);
6244 osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
6246 /* check if file type is required */
6247 if (ent->lde_attrs & LUDA_TYPE) {
6248 struct luda_type *lt;
6249 int align = sizeof(*lt) - 1;
6251 len = (len + align) & ~align;
6252 lt = (struct luda_type *)(ent->lde_name + len);
6253 lt->lt_type = cpu_to_le16(DTTOIF(type));
6256 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
6260 * build lu direct from backend fs dirent.
6264 osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
6265 char *name, __u16 namelen, __u16 type, __u32 attr)
6267 ent->lde_attrs = attr | LUDA_FID;
6268 fid_cpu_to_le(&ent->lde_fid, fid);
6270 ent->lde_hash = cpu_to_le64(offset);
6271 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
6273 strncpy(ent->lde_name, name, namelen);
6274 ent->lde_name[namelen] = '\0';
6275 ent->lde_namelen = cpu_to_le16(namelen);
6277 /* append lustre attributes */
6278 osd_it_append_attrs(ent, namelen, type);
6282 * Return pointer to the record under iterator.
6284 static int osd_it_iam_rec(const struct lu_env *env,
6285 const struct dt_it *di,
6286 struct dt_rec *dtrec, __u32 attr)
6288 struct osd_it_iam *it = (struct osd_it_iam *)di;
6289 struct osd_thread_info *info = osd_oti_get(env);
6293 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
6294 const struct osd_fid_pack *rec;
6295 struct lu_fid *fid = &info->oti_fid;
6296 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
6302 name = (char *)iam_it_key_get(&it->oi_it);
6304 RETURN(PTR_ERR(name));
6306 namelen = iam_it_key_size(&it->oi_it);
6308 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
6310 RETURN(PTR_ERR(rec));
6312 rc = osd_fid_unpack(fid, rec);
6316 hash = iam_it_store(&it->oi_it);
6318 /* IAM does not store object type in IAM index (dir) */
6319 osd_it_pack_dirent(lde, fid, hash, name, namelen,
6321 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
6322 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
6323 (struct iam_rec *)dtrec);
6324 osd_quota_unpack(it->oi_obj, dtrec);
6326 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
6327 (struct iam_rec *)dtrec);
6334 * Returns cookie for current Iterator position.
6336 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
6338 struct osd_it_iam *it = (struct osd_it_iam *)di;
6340 return iam_it_store(&it->oi_it);
6344 * Restore iterator from cookie.
6346 * \param di osd iterator
6347 * \param hash Iterator location cookie
6349 * \retval +ve di points to record with least key not larger than key.
6350 * \retval 0 di points to exact matched key
6351 * \retval -ve failure
6354 static int osd_it_iam_load(const struct lu_env *env,
6355 const struct dt_it *di, __u64 hash)
6357 struct osd_it_iam *it = (struct osd_it_iam *)di;
6359 return iam_it_load(&it->oi_it, hash);
6362 static const struct dt_index_operations osd_index_iam_ops = {
6363 .dio_lookup = osd_index_iam_lookup,
6364 .dio_declare_insert = osd_index_declare_iam_insert,
6365 .dio_insert = osd_index_iam_insert,
6366 .dio_declare_delete = osd_index_declare_iam_delete,
6367 .dio_delete = osd_index_iam_delete,
6369 .init = osd_it_iam_init,
6370 .fini = osd_it_iam_fini,
6371 .get = osd_it_iam_get,
6372 .put = osd_it_iam_put,
6373 .next = osd_it_iam_next,
6374 .key = osd_it_iam_key,
6375 .key_size = osd_it_iam_key_size,
6376 .rec = osd_it_iam_rec,
6377 .store = osd_it_iam_store,
6378 .load = osd_it_iam_load
6384 * Creates or initializes iterator context.
6386 * \retval struct osd_it_ea, iterator structure on success
6389 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
6390 struct dt_object *dt,
6393 struct osd_object *obj = osd_dt_obj(dt);
6394 struct osd_thread_info *info = osd_oti_get(env);
6395 struct osd_it_ea *oie;
6397 struct lu_object *lo = &dt->do_lu;
6398 struct dentry *obj_dentry;
6402 if (!dt_object_exists(dt) || obj->oo_destroyed)
6403 RETURN(ERR_PTR(-ENOENT));
6405 OBD_SLAB_ALLOC_PTR_GFP(oie, osd_itea_cachep, GFP_NOFS);
6407 RETURN(ERR_PTR(-ENOMEM));
6408 obj_dentry = &oie->oie_dentry;
6410 obj_dentry->d_inode = obj->oo_inode;
6411 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
6412 obj_dentry->d_name.hash = 0;
6414 oie->oie_rd_dirent = 0;
6415 oie->oie_it_dirent = 0;
6416 oie->oie_dirent = NULL;
6417 if (unlikely(!info->oti_it_ea_buf_used)) {
6418 oie->oie_buf = info->oti_it_ea_buf;
6419 info->oti_it_ea_buf_used = 1;
6421 OBD_ALLOC(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6422 if (oie->oie_buf == NULL)
6423 RETURN(ERR_PTR(-ENOMEM));
6427 file = &oie->oie_file;
6429 /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
6430 if (attr & LUDA_64BITHASH)
6431 file->f_mode = FMODE_64BITHASH;
6433 file->f_mode = FMODE_32BITHASH;
6434 file->f_path.dentry = obj_dentry;
6435 file->f_mapping = obj->oo_inode->i_mapping;
6436 file->f_op = obj->oo_inode->i_fop;
6437 set_file_inode(file, obj->oo_inode);
6440 RETURN((struct dt_it *)oie);
6444 * Destroy or finishes iterator context.
6446 * \param di iterator structure to be destroyed
6448 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
6450 struct osd_thread_info *info = osd_oti_get(env);
6451 struct osd_it_ea *oie = (struct osd_it_ea *)di;
6452 struct osd_object *obj = oie->oie_obj;
6453 struct inode *inode = obj->oo_inode;
6456 oie->oie_file.f_op->release(inode, &oie->oie_file);
6457 osd_object_put(env, obj);
6458 if (unlikely(oie->oie_buf != info->oti_it_ea_buf))
6459 OBD_FREE(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6461 info->oti_it_ea_buf_used = 0;
6462 OBD_SLAB_FREE_PTR(oie, osd_itea_cachep);
6467 * It position the iterator at given key, so that next lookup continues from
6468 * that key Or it is similar to dio_it->load() but based on a key,
6469 * rather than file position.
6471 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
6474 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
6476 static int osd_it_ea_get(const struct lu_env *env,
6477 struct dt_it *di, const struct dt_key *key)
6479 struct osd_it_ea *it = (struct osd_it_ea *)di;
6482 LASSERT(((const char *)key)[0] == '\0');
6483 it->oie_file.f_pos = 0;
6484 it->oie_rd_dirent = 0;
6485 it->oie_it_dirent = 0;
6486 it->oie_dirent = NULL;
6494 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
6498 struct osd_filldir_cbs {
6499 #ifdef HAVE_DIR_CONTEXT
6500 struct dir_context ctx;
6502 struct osd_it_ea *it;
6505 * It is called internally by ->readdir(). It fills the
6506 * iterator's in-memory data structure with required
6507 * information i.e. name, namelen, rec_size etc.
6509 * \param buf in which information to be filled in.
6510 * \param name name of the file in given dir
6512 * \retval 0 on success
6513 * \retval 1 on buffer full
6515 #ifdef HAVE_FILLDIR_USE_CTX
6516 static int osd_ldiskfs_filldir(struct dir_context *buf,
6518 static int osd_ldiskfs_filldir(void *buf,
6520 const char *name, int namelen,
6521 loff_t offset, __u64 ino, unsigned int d_type)
6523 struct osd_it_ea *it = ((struct osd_filldir_cbs *)buf)->it;
6524 struct osd_object *obj = it->oie_obj;
6525 struct osd_it_ea_dirent *ent = it->oie_dirent;
6526 struct lu_fid *fid = &ent->oied_fid;
6527 struct osd_fid_pack *rec;
6531 /* this should never happen */
6532 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
6533 CERROR("ldiskfs return invalid namelen %d\n", namelen);
6537 if ((void *)ent - it->oie_buf + sizeof(*ent) + namelen >
6541 /* "." is just the object itself. */
6542 if (namelen == 1 && name[0] == '.') {
6543 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6544 } else if (d_type & LDISKFS_DIRENT_LUFID) {
6545 rec = (struct osd_fid_pack *)(name + namelen + 1);
6546 if (osd_fid_unpack(fid, rec) != 0)
6551 d_type &= ~LDISKFS_DIRENT_LUFID;
6553 /* NOT export local root. */
6554 if (unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
6555 ino = obj->oo_inode->i_ino;
6556 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6559 ent->oied_ino = ino;
6560 ent->oied_off = offset;
6561 ent->oied_namelen = namelen;
6562 ent->oied_type = d_type;
6564 memcpy(ent->oied_name, name, namelen);
6566 it->oie_rd_dirent++;
6567 it->oie_dirent = (void *)ent + cfs_size_round(sizeof(*ent) + namelen);
6572 * Calls ->readdir() to load a directory entry at a time
6573 * and stored it in iterator's in-memory data structure.
6575 * \param di iterator's in memory structure
6577 * \retval 0 on success
6578 * \retval -ve on error
6579 * \retval +1 reach the end of entry
6581 static int osd_ldiskfs_it_fill(const struct lu_env *env,
6582 const struct dt_it *di)
6584 struct osd_it_ea *it = (struct osd_it_ea *)di;
6585 struct osd_object *obj = it->oie_obj;
6586 struct inode *inode = obj->oo_inode;
6587 struct htree_lock *hlock = NULL;
6588 struct file *filp = &it->oie_file;
6590 struct osd_filldir_cbs buf = {
6591 #ifdef HAVE_DIR_CONTEXT
6592 .ctx.actor = osd_ldiskfs_filldir,
6598 it->oie_dirent = it->oie_buf;
6599 it->oie_rd_dirent = 0;
6601 if (obj->oo_hl_head != NULL) {
6602 hlock = osd_oti_get(env)->oti_hlock;
6603 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
6604 inode, LDISKFS_HLOCK_READDIR);
6606 down_read(&obj->oo_ext_idx_sem);
6609 #ifdef HAVE_DIR_CONTEXT
6610 buf.ctx.pos = filp->f_pos;
6611 #ifdef HAVE_ITERATE_SHARED
6612 rc = inode->i_fop->iterate_shared(filp, &buf.ctx);
6614 rc = inode->i_fop->iterate(filp, &buf.ctx);
6616 filp->f_pos = buf.ctx.pos;
6618 rc = inode->i_fop->readdir(filp, &buf, osd_ldiskfs_filldir);
6622 ldiskfs_htree_unlock(hlock);
6624 up_read(&obj->oo_ext_idx_sem);
6626 if (it->oie_rd_dirent == 0) {
6628 * If it does not get any dirent, it means it has been reached
6629 * to the end of the dir
6631 it->oie_file.f_pos = ldiskfs_get_htree_eof(&it->oie_file);
6635 it->oie_dirent = it->oie_buf;
6636 it->oie_it_dirent = 1;
6643 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
6644 * to load a directory entry at a time and stored it in
6645 * iterator's in-memory data structure.
6647 * \param di iterator's in memory structure
6649 * \retval +ve iterator reached to end
6650 * \retval 0 iterator not reached to end
6651 * \retval -ve on error
6653 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
6655 struct osd_it_ea *it = (struct osd_it_ea *)di;
6660 if (it->oie_it_dirent < it->oie_rd_dirent) {
6662 (void *)it->oie_dirent +
6663 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
6664 it->oie_dirent->oied_namelen);
6665 it->oie_it_dirent++;
6668 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
6671 rc = osd_ldiskfs_it_fill(env, di);
6678 * Returns the key at current position from iterator's in memory structure.
6680 * \param di iterator's in memory structure
6682 * \retval key i.e. struct dt_key on success
6684 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
6685 const struct dt_it *di)
6687 struct osd_it_ea *it = (struct osd_it_ea *)di;
6689 return (struct dt_key *)it->oie_dirent->oied_name;
6693 * Returns key's size at current position from iterator's in memory structure.
6695 * \param di iterator's in memory structure
6697 * \retval key_size i.e. struct dt_key on success
6699 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
6701 struct osd_it_ea *it = (struct osd_it_ea *)di;
6703 return it->oie_dirent->oied_namelen;
6706 static inline bool osd_dotdot_has_space(struct ldiskfs_dir_entry_2 *de)
6708 if (LDISKFS_DIR_REC_LEN(de) >=
6709 __LDISKFS_DIR_REC_LEN(2 + 1 + sizeof(struct osd_fid_pack)))
6716 osd_dirent_has_space(struct ldiskfs_dir_entry_2 *de, __u16 namelen,
6717 unsigned int blocksize, bool dotdot)
6720 return osd_dotdot_has_space(de);
6722 if (ldiskfs_rec_len_from_disk(de->rec_len, blocksize) >=
6723 __LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
6730 osd_dirent_reinsert(const struct lu_env *env, struct osd_device *dev,
6731 handle_t *jh, struct dentry *dentry,
6732 const struct lu_fid *fid, struct buffer_head *bh,
6733 struct ldiskfs_dir_entry_2 *de, struct htree_lock *hlock,
6736 struct inode *dir = dentry->d_parent->d_inode;
6737 struct inode *inode = dentry->d_inode;
6738 struct osd_fid_pack *rec;
6739 struct ldiskfs_dentry_param *ldp;
6740 int namelen = dentry->d_name.len;
6742 struct osd_thread_info *info = osd_oti_get(env);
6746 if (!ldiskfs_has_feature_dirdata(inode->i_sb))
6749 /* There is enough space to hold the FID-in-dirent. */
6750 if (osd_dirent_has_space(de, namelen, dir->i_sb->s_blocksize, dotdot)) {
6751 rc = ldiskfs_journal_get_write_access(jh, bh);
6755 de->name[namelen] = 0;
6756 rec = (struct osd_fid_pack *)(de->name + namelen + 1);
6757 rec->fp_len = sizeof(struct lu_fid) + 1;
6758 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
6759 de->file_type |= LDISKFS_DIRENT_LUFID;
6760 rc = ldiskfs_handle_dirty_metadata(jh, NULL, bh);
6767 rc = ldiskfs_delete_entry(jh, dir, de, bh);
6771 ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
6772 osd_get_ldiskfs_dirent_param(ldp, fid);
6773 dentry->d_fsdata = (void *)ldp;
6774 ll_vfs_dq_init(dir);
6775 rc = osd_ldiskfs_add_entry(info, dev, jh, dentry, inode, hlock);
6777 * It is too bad, we cannot reinsert the name entry back.
6778 * That means we lose it!
6781 CDEBUG(D_LFSCK, "%s: fail to reinsert the dirent, "
6782 "dir = %lu/%u, name = %.*s, "DFID": rc = %d\n",
6783 osd_ino2name(inode),
6784 dir->i_ino, dir->i_generation, namelen,
6785 dentry->d_name.name, PFID(fid), rc);
6791 osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
6792 struct osd_it_ea *it, struct lu_fid *fid,
6793 struct osd_inode_id *id, __u32 *attr)
6795 struct osd_thread_info *info = osd_oti_get(env);
6796 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
6797 struct osd_device *dev = osd_obj2dev(obj);
6798 struct super_block *sb = osd_sb(dev);
6799 const char *devname = osd_name(dev);
6800 struct osd_it_ea_dirent *ent = it->oie_dirent;
6801 struct inode *dir = obj->oo_inode;
6802 struct htree_lock *hlock = NULL;
6803 struct buffer_head *bh = NULL;
6804 handle_t *jh = NULL;
6805 struct ldiskfs_dir_entry_2 *de;
6806 struct dentry *dentry;
6807 struct inode *inode;
6808 const struct lu_fid *pfid = lu_object_fid(&obj->oo_dt.do_lu);
6811 bool dotdot = false;
6816 if (ent->oied_name[0] == '.') {
6817 if (ent->oied_namelen == 1)
6820 if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
6824 osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
6825 inode = osd_iget(info, dev, id);
6826 if (IS_ERR(inode)) {
6827 rc = PTR_ERR(inode);
6828 if (rc == -ENOENT || rc == -ESTALE) {
6830 * Maybe dangling name entry, or
6831 * corrupted directory entry.
6833 *attr |= LUDA_UNKNOWN;
6836 CDEBUG(D_LFSCK, "%s: fail to iget() for dirent "
6837 "check_repair, dir = %lu/%u, name = %.*s, "
6838 "ino = %llu, rc = %d\n",
6839 devname, dir->i_ino, dir->i_generation,
6840 ent->oied_namelen, ent->oied_name,
6847 dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
6849 rc = osd_get_lma(info, inode, dentry, &info->oti_ost_attrs);
6850 if (rc == -ENODATA || !fid_is_sane(&lma->lma_self_fid))
6856 * We need to ensure that the name entry is still valid.
6857 * Because it may be removed or renamed by other already.
6859 * The unlink or rename operation will start journal before PDO lock,
6860 * so to avoid deadlock, here we need to start journal handle before
6861 * related PDO lock also. But because we do not know whether there
6862 * will be something to be repaired before PDO lock, we just start
6863 * journal without conditions.
6865 * We may need to remove the name entry firstly, then insert back.
6866 * One credit is for user quota file update.
6867 * One credit is for group quota file update.
6868 * Two credits are for dirty inode.
6870 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
6871 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
6873 if (dev->od_dirent_journal != 0) {
6876 jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
6879 CDEBUG(D_LFSCK, "%s: fail to start trans for dirent "
6880 "check_repair, dir = %lu/%u, credits = %d, "
6881 "name = %.*s, ino = %llu: rc = %d\n",
6882 devname, dir->i_ino, dir->i_generation, credits,
6883 ent->oied_namelen, ent->oied_name,
6886 GOTO(out_inode, rc);
6889 if (obj->oo_hl_head != NULL) {
6890 hlock = osd_oti_get(env)->oti_hlock;
6892 * "0" means exclusive lock for the whole directory.
6893 * We need to prevent others access such name entry
6894 * during the delete + insert. Neither HLOCK_ADD nor
6895 * HLOCK_DEL cannot guarantee the atomicity.
6897 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
6899 down_write(&obj->oo_ext_idx_sem);
6902 if (obj->oo_hl_head != NULL) {
6903 hlock = osd_oti_get(env)->oti_hlock;
6904 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
6905 LDISKFS_HLOCK_LOOKUP);
6907 down_read(&obj->oo_ext_idx_sem);
6911 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
6912 if (IS_ERR(bh) || le32_to_cpu(de->inode) != inode->i_ino) {
6913 *attr |= LUDA_IGNORE;
6919 * For dotdot entry, if there is not enough space to hold the
6920 * FID-in-dirent, just keep them there. It only happens when the
6921 * device upgraded from 1.8 or restored from MDT file-level backup.
6922 * For the whole directory, only dotdot entry have no FID-in-dirent
6923 * and needs to get FID from LMA when readdir, it will not affect the
6926 if (dotdot && !osd_dotdot_has_space(de)) {
6927 *attr |= LUDA_UNKNOWN;
6933 if (lu_fid_eq(fid, &lma->lma_self_fid))
6936 if (unlikely(lma->lma_compat & LMAC_NOT_IN_OI)) {
6937 struct lu_fid *tfid = &lma->lma_self_fid;
6939 if (likely(dotdot &&
6940 fid_seq(tfid) == FID_SEQ_LOCAL_FILE &&
6941 fid_oid(tfid) == REMOTE_PARENT_DIR_OID)) {
6943 * It must be REMOTE_PARENT_DIR and as the
6944 * 'dotdot' entry of remote directory
6946 *attr |= LUDA_IGNORE;
6948 CDEBUG(D_LFSCK, "%s: expect remote agent "
6949 "parent directory, but got %.*s under "
6950 "dir = %lu/%u with the FID "DFID"\n",
6951 devname, ent->oied_namelen,
6952 ent->oied_name, dir->i_ino,
6953 dir->i_generation, PFID(tfid));
6955 *attr |= LUDA_UNKNOWN;
6962 if (!fid_is_zero(fid)) {
6963 rc = osd_verify_ent_by_linkea(env, inode, pfid, ent->oied_name,
6965 if (rc == -ENOENT ||
6967 !(dev->od_scrub.os_scrub.os_file.sf_flags & SF_UPGRADE))) {
6969 * linkEA does not recognize the dirent entry,
6970 * it may because the dirent entry corruption
6971 * and points to other's inode.
6973 CDEBUG(D_LFSCK, "%s: the target inode does not "
6974 "recognize the dirent, dir = %lu/%u, "
6975 " name = %.*s, ino = %llu, "
6976 DFID": rc = %d\n", devname, dir->i_ino,
6977 dir->i_generation, ent->oied_namelen,
6978 ent->oied_name, ent->oied_ino, PFID(fid), rc);
6979 *attr |= LUDA_UNKNOWN;
6984 if (rc && rc != -ENODATA) {
6985 CDEBUG(D_LFSCK, "%s: fail to verify FID in the dirent, "
6986 "dir = %lu/%u, name = %.*s, ino = %llu, "
6987 DFID": rc = %d\n", devname, dir->i_ino,
6988 dir->i_generation, ent->oied_namelen,
6989 ent->oied_name, ent->oied_ino, PFID(fid), rc);
6990 *attr |= LUDA_UNKNOWN;
6998 * linkEA recognizes the dirent entry, the FID-in-LMA is
6999 * valid, trusted, in spite of fid_is_sane(fid) or not.
7001 if (*attr & LUDA_VERIFY_DRYRUN) {
7002 *fid = lma->lma_self_fid;
7003 *attr |= LUDA_REPAIR;
7010 dev->od_dirent_journal = 1;
7011 if (hlock != NULL) {
7012 ldiskfs_htree_unlock(hlock);
7015 up_read(&obj->oo_ext_idx_sem);
7021 *fid = lma->lma_self_fid;
7023 /* Update or append the FID-in-dirent. */
7024 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
7025 bh, de, hlock, dotdot);
7027 *attr |= LUDA_REPAIR;
7029 CDEBUG(D_LFSCK, "%s: fail to re-insert FID after "
7030 "the dirent, dir = %lu/%u, name = %.*s, "
7031 "ino = %llu, "DFID": rc = %d\n",
7032 devname, dir->i_ino, dir->i_generation,
7033 ent->oied_namelen, ent->oied_name,
7034 ent->oied_ino, PFID(fid), rc);
7036 /* lma is NULL, trust the FID-in-dirent if it is valid. */
7037 if (*attr & LUDA_VERIFY_DRYRUN) {
7038 if (fid_is_sane(fid)) {
7039 *attr |= LUDA_REPAIR;
7040 } else if (dev->od_index == 0) {
7041 lu_igif_build(fid, inode->i_ino,
7042 inode->i_generation);
7043 *attr |= LUDA_UPGRADE;
7051 dev->od_dirent_journal = 1;
7052 if (hlock != NULL) {
7053 ldiskfs_htree_unlock(hlock);
7056 up_read(&obj->oo_ext_idx_sem);
7063 if (unlikely(fid_is_sane(fid))) {
7065 * FID-in-dirent exists, but FID-in-LMA is lost.
7066 * Trust the FID-in-dirent, and add FID-in-LMA.
7068 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
7070 *attr |= LUDA_REPAIR;
7072 CDEBUG(D_LFSCK, "%s: fail to set LMA for "
7073 "update dirent, dir = %lu/%u, "
7074 "name = %.*s, ino = %llu, "
7076 devname, dir->i_ino, dir->i_generation,
7077 ent->oied_namelen, ent->oied_name,
7078 ent->oied_ino, PFID(fid), rc);
7079 } else if (dev->od_index == 0) {
7080 lu_igif_build(fid, inode->i_ino, inode->i_generation);
7082 * It is probably IGIF object. Only aappend the
7083 * FID-in-dirent. OI scrub will process FID-in-LMA.
7085 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
7086 bh, de, hlock, dotdot);
7088 *attr |= LUDA_UPGRADE;
7090 CDEBUG(D_LFSCK, "%s: fail to append IGIF "
7091 "after the dirent, dir = %lu/%u, "
7092 "name = %.*s, ino = %llu, "
7094 devname, dir->i_ino, dir->i_generation,
7095 ent->oied_namelen, ent->oied_name,
7096 ent->oied_ino, PFID(fid), rc);
7105 if (hlock != NULL) {
7106 ldiskfs_htree_unlock(hlock);
7108 if (dev->od_dirent_journal != 0)
7109 up_write(&obj->oo_ext_idx_sem);
7111 up_read(&obj->oo_ext_idx_sem);
7115 ldiskfs_journal_stop(jh);
7119 if (rc >= 0 && !dirty)
7120 dev->od_dirent_journal = 0;
7126 * Returns the value at current position from iterator's in memory structure.
7128 * \param di struct osd_it_ea, iterator's in memory structure
7129 * \param attr attr requested for dirent.
7130 * \param lde lustre dirent
7132 * \retval 0 no error and \param lde has correct lustre dirent.
7133 * \retval -ve on error
7135 static inline int osd_it_ea_rec(const struct lu_env *env,
7136 const struct dt_it *di,
7137 struct dt_rec *dtrec, __u32 attr)
7139 struct osd_it_ea *it = (struct osd_it_ea *)di;
7140 struct osd_object *obj = it->oie_obj;
7141 struct osd_device *dev = osd_obj2dev(obj);
7142 struct osd_thread_info *oti = osd_oti_get(env);
7143 struct osd_inode_id *id = &oti->oti_id;
7144 struct lu_fid *fid = &it->oie_dirent->oied_fid;
7145 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
7146 __u32 ino = it->oie_dirent->oied_ino;
7151 LASSERT(!is_remote_parent_ino(dev, obj->oo_inode->i_ino));
7153 if (attr & LUDA_VERIFY) {
7154 if (unlikely(is_remote_parent_ino(dev, ino))) {
7155 attr |= LUDA_IGNORE;
7157 * If the parent is on remote MDT, and there
7158 * is no FID-in-dirent, then we have to get
7159 * the parent FID from the linkEA.
7161 if (!fid_is_sane(fid) &&
7162 it->oie_dirent->oied_namelen == 2 &&
7163 it->oie_dirent->oied_name[0] == '.' &&
7164 it->oie_dirent->oied_name[1] == '.')
7165 osd_get_pfid_from_linkea(env, obj, fid);
7167 rc = osd_dirent_check_repair(env, obj, it, fid, id,
7171 if (!fid_is_sane(fid))
7172 attr |= LUDA_UNKNOWN;
7174 attr &= ~LU_DIRENT_ATTRS_MASK;
7175 if (!fid_is_sane(fid)) {
7176 bool is_dotdot = false;
7178 if (it->oie_dirent->oied_namelen == 2 &&
7179 it->oie_dirent->oied_name[0] == '.' &&
7180 it->oie_dirent->oied_name[1] == '.')
7183 * If the parent is on remote MDT, and there
7184 * is no FID-in-dirent, then we have to get
7185 * the parent FID from the linkEA.
7187 if (is_remote_parent_ino(dev, ino) && is_dotdot) {
7188 rc = osd_get_pfid_from_linkea(env, obj, fid);
7190 if (is_dotdot == false &&
7191 OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP))
7194 rc = osd_ea_fid_get(env, obj, ino, fid, id);
7197 osd_id_gen(id, ino, OSD_OII_NOGEN);
7201 /* Pack the entry anyway, at least the offset is right. */
7202 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
7203 it->oie_dirent->oied_name,
7204 it->oie_dirent->oied_namelen,
7205 it->oie_dirent->oied_type, attr);
7210 if (osd_remote_fid(env, dev, fid))
7213 if (likely(!(attr & (LUDA_IGNORE | LUDA_UNKNOWN)) && rc == 0))
7214 osd_add_oi_cache(oti, dev, id, fid);
7216 RETURN(rc > 0 ? 0 : rc);
7220 * Returns the record size size at current position.
7222 * This function will return record(lu_dirent) size in bytes.
7224 * \param[in] env execution environment
7225 * \param[in] di iterator's in memory structure
7226 * \param[in] attr attribute of the entry, only requires LUDA_TYPE to
7227 * calculate the lu_dirent size.
7229 * \retval record size(in bytes & in memory) of the current lu_dirent
7232 static int osd_it_ea_rec_size(const struct lu_env *env, const struct dt_it *di,
7235 struct osd_it_ea *it = (struct osd_it_ea *)di;
7237 return lu_dirent_calc_size(it->oie_dirent->oied_namelen, attr);
7241 * Returns a cookie for current position of the iterator head, so that
7242 * user can use this cookie to load/start the iterator next time.
7244 * \param di iterator's in memory structure
7246 * \retval cookie for current position, on success
7248 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
7250 struct osd_it_ea *it = (struct osd_it_ea *)di;
7252 return it->oie_dirent->oied_off;
7256 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
7257 * to load a directory entry at a time and stored it i inn,
7258 * in iterator's in-memory data structure.
7260 * \param di struct osd_it_ea, iterator's in memory structure
7262 * \retval +ve on success
7263 * \retval -ve on error
7265 static int osd_it_ea_load(const struct lu_env *env,
7266 const struct dt_it *di, __u64 hash)
7268 struct osd_it_ea *it = (struct osd_it_ea *)di;
7272 it->oie_file.f_pos = hash;
7274 rc = osd_ldiskfs_it_fill(env, di);
7285 * Index lookup function for interoperability mode (b11826).
7287 * \param key, key i.e. file name to be searched
7289 * \retval +ve, on success
7290 * \retval -ve, on error
7292 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
7293 struct dt_rec *rec, const struct dt_key *key)
7295 struct osd_object *obj = osd_dt_obj(dt);
7300 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
7301 LINVRNT(osd_invariant(obj));
7303 rc = osd_ea_lookup_rec(env, obj, rec, key);
7310 * Index and Iterator operations for interoperability
7311 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
7313 static const struct dt_index_operations osd_index_ea_ops = {
7314 .dio_lookup = osd_index_ea_lookup,
7315 .dio_declare_insert = osd_index_declare_ea_insert,
7316 .dio_insert = osd_index_ea_insert,
7317 .dio_declare_delete = osd_index_declare_ea_delete,
7318 .dio_delete = osd_index_ea_delete,
7320 .init = osd_it_ea_init,
7321 .fini = osd_it_ea_fini,
7322 .get = osd_it_ea_get,
7323 .put = osd_it_ea_put,
7324 .next = osd_it_ea_next,
7325 .key = osd_it_ea_key,
7326 .key_size = osd_it_ea_key_size,
7327 .rec = osd_it_ea_rec,
7328 .rec_size = osd_it_ea_rec_size,
7329 .store = osd_it_ea_store,
7330 .load = osd_it_ea_load
7334 static void *osd_key_init(const struct lu_context *ctx,
7335 struct lu_context_key *key)
7337 struct osd_thread_info *info;
7339 OBD_ALLOC_PTR(info);
7341 return ERR_PTR(-ENOMEM);
7343 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7344 if (info->oti_it_ea_buf == NULL)
7347 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
7349 info->oti_hlock = ldiskfs_htree_lock_alloc();
7350 if (info->oti_hlock == NULL)
7356 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7359 return ERR_PTR(-ENOMEM);
7362 static void osd_key_fini(const struct lu_context *ctx,
7363 struct lu_context_key *key, void *data)
7365 struct osd_thread_info *info = data;
7366 struct ldiskfs_inode_info *lli = LDISKFS_I(info->oti_inode);
7367 struct osd_idmap_cache *idc = info->oti_ins_cache;
7369 if (info->oti_dio_pages) {
7371 for (i = 0; i < PTLRPC_MAX_BRW_PAGES; i++) {
7372 if (info->oti_dio_pages[i])
7373 __free_page(info->oti_dio_pages[i]);
7375 OBD_FREE(info->oti_dio_pages,
7376 sizeof(struct page *) * PTLRPC_MAX_BRW_PAGES);
7379 if (info->oti_inode != NULL)
7381 if (info->oti_hlock != NULL)
7382 ldiskfs_htree_lock_free(info->oti_hlock);
7383 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7384 lu_buf_free(&info->oti_iobuf.dr_pg_buf);
7385 lu_buf_free(&info->oti_iobuf.dr_bl_buf);
7386 lu_buf_free(&info->oti_iobuf.dr_lnb_buf);
7387 lu_buf_free(&info->oti_big_buf);
7389 LASSERT(info->oti_ins_cache_size > 0);
7390 OBD_FREE(idc, sizeof(*idc) * info->oti_ins_cache_size);
7391 info->oti_ins_cache = NULL;
7392 info->oti_ins_cache_size = 0;
7397 static void osd_key_exit(const struct lu_context *ctx,
7398 struct lu_context_key *key, void *data)
7400 struct osd_thread_info *info = data;
7402 LASSERT(info->oti_r_locks == 0);
7403 LASSERT(info->oti_w_locks == 0);
7404 LASSERT(info->oti_txns == 0);
7407 /* type constructor/destructor: osd_type_init, osd_type_fini */
7408 LU_TYPE_INIT_FINI(osd, &osd_key);
7410 struct lu_context_key osd_key = {
7411 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
7412 .lct_init = osd_key_init,
7413 .lct_fini = osd_key_fini,
7414 .lct_exit = osd_key_exit
7418 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
7419 const char *name, struct lu_device *next)
7421 struct osd_device *osd = osd_dev(d);
7423 if (strlcpy(osd->od_svname, name, sizeof(osd->od_svname)) >=
7424 sizeof(osd->od_svname))
7426 return osd_procfs_init(osd, name);
7429 static int osd_fid_init(const struct lu_env *env, struct osd_device *osd)
7431 struct seq_server_site *ss = osd_seq_site(osd);
7436 if (osd->od_is_ost || osd->od_cl_seq != NULL)
7439 if (unlikely(ss == NULL))
7442 OBD_ALLOC_PTR(osd->od_cl_seq);
7443 if (osd->od_cl_seq == NULL)
7446 rc = seq_client_init(osd->od_cl_seq, NULL, LUSTRE_SEQ_METADATA,
7447 osd->od_svname, ss->ss_server_seq);
7449 OBD_FREE_PTR(osd->od_cl_seq);
7450 osd->od_cl_seq = NULL;
7454 if (ss->ss_node_id == 0) {
7456 * If the OSD on the sequence controller(MDT0), then allocate
7457 * sequence here, otherwise allocate sequence after connected
7458 * to MDT0 (see mdt_register_lwp_callback()).
7460 rc = seq_server_alloc_meta(osd->od_cl_seq->lcs_srv,
7461 &osd->od_cl_seq->lcs_space, env);
7467 static void osd_fid_fini(const struct lu_env *env, struct osd_device *osd)
7469 if (osd->od_cl_seq == NULL)
7472 seq_client_fini(osd->od_cl_seq);
7473 OBD_FREE_PTR(osd->od_cl_seq);
7474 osd->od_cl_seq = NULL;
7477 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
7481 /* shutdown quota slave instance associated with the device */
7482 if (o->od_quota_slave_md != NULL) {
7483 struct qsd_instance *qsd = o->od_quota_slave_md;
7485 o->od_quota_slave_md = NULL;
7489 if (o->od_quota_slave_dt != NULL) {
7490 struct qsd_instance *qsd = o->od_quota_slave_dt;
7492 o->od_quota_slave_dt = NULL;
7496 osd_fid_fini(env, o);
7497 osd_scrub_cleanup(env, o);
7502 static void osd_umount(const struct lu_env *env, struct osd_device *o)
7506 if (o->od_mnt != NULL) {
7507 shrink_dcache_sb(osd_sb(o));
7508 osd_sync(env, &o->od_dt_dev);
7517 static int osd_mount(const struct lu_env *env,
7518 struct osd_device *o, struct lustre_cfg *cfg)
7520 const char *name = lustre_cfg_string(cfg, 0);
7521 const char *dev = lustre_cfg_string(cfg, 1);
7523 unsigned long page, s_flags, lmd_flags = 0;
7524 struct page *__page;
7525 struct file_system_type *type;
7526 char *options = NULL;
7528 struct osd_thread_info *info = osd_oti_get(env);
7529 struct lu_fid *fid = &info->oti_fid;
7530 struct inode *inode;
7531 int rc = 0, force_over_512tb = 0;
7535 if (o->od_mnt != NULL)
7538 if (strlen(dev) >= sizeof(o->od_mntdev))
7540 strcpy(o->od_mntdev, dev);
7542 str = lustre_cfg_string(cfg, 2);
7543 s_flags = simple_strtoul(str, NULL, 0);
7544 str = strstr(str, ":");
7546 lmd_flags = simple_strtoul(str + 1, NULL, 0);
7547 opts = lustre_cfg_string(cfg, 3);
7549 if (opts == NULL || strstr(opts, "bigendian_extents") == NULL) {
7550 CERROR("%s: device %s extents feature is not guaranteed to "
7551 "work on big-endian systems. Use \"bigendian_extents\" "
7552 "mount option to override.\n", name, dev);
7556 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7557 if (opts != NULL && strstr(opts, "force_over_128tb") != NULL) {
7558 CWARN("force_over_128tb option is deprecated. "
7559 "Filesystems less than 512TB can be created without any "
7560 "force options. Use force_over_512tb option for "
7561 "filesystems greater than 512TB.\n");
7564 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 1, 53, 0)
7565 if (opts != NULL && strstr(opts, "force_over_256tb") != NULL) {
7566 CWARN("force_over_256tb option is deprecated. "
7567 "Filesystems less than 512TB can be created without any "
7568 "force options. Use force_over_512tb option for "
7569 "filesystems greater than 512TB.\n");
7573 if (opts != NULL && strstr(opts, "force_over_512tb") != NULL)
7574 force_over_512tb = 1;
7576 __page = alloc_page(GFP_KERNEL);
7578 GOTO(out, rc = -ENOMEM);
7579 page = (unsigned long)page_address(__page);
7580 options = (char *)page;
7583 /* strip out the options for back compatiblity */
7584 static char *sout[] = {
7591 /* strip out option we processed in osd */
7592 "bigendian_extents",
7598 strncat(options, opts, PAGE_SIZE);
7599 for (rc = 0, str = options; sout[rc]; ) {
7600 char *op = strstr(str, sout[rc]);
7607 if (op == options || *(op - 1) == ',') {
7608 str = op + strlen(sout[rc]);
7609 if (*str == ',' || *str == '\0') {
7610 *str == ',' ? str++ : str;
7611 memmove(op, str, strlen(str) + 1);
7614 for (str = op; *str != ',' && *str != '\0'; str++)
7618 strncat(options, "user_xattr,acl", PAGE_SIZE);
7621 /* Glom up mount options */
7622 if (*options != '\0')
7623 strncat(options, ",", PAGE_SIZE);
7624 strncat(options, "no_mbcache,nodelalloc", PAGE_SIZE);
7626 type = get_fs_type("ldiskfs");
7628 CERROR("%s: cannot find ldiskfs module\n", name);
7629 GOTO(out, rc = -ENODEV);
7632 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
7633 module_put(type->owner);
7635 if (IS_ERR(o->od_mnt)) {
7636 rc = PTR_ERR(o->od_mnt);
7638 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
7642 if (ldiskfs_blocks_count(LDISKFS_SB(osd_sb(o))->s_es) <<
7643 osd_sb(o)->s_blocksize_bits > 512ULL << 40 &&
7644 force_over_512tb == 0) {
7645 CERROR("%s: device %s LDISKFS does not support filesystems "
7646 "greater than 512TB and can cause data corruption. "
7647 "Use \"force_over_512tb\" mount option to override.\n",
7649 GOTO(out_mnt, rc = -EINVAL);
7652 if (lmd_flags & LMD_FLG_DEV_RDONLY) {
7653 if (priv_dev_set_rdonly) {
7654 priv_dev_set_rdonly(osd_sb(o)->s_bdev);
7655 o->od_dt_dev.dd_rdonly = 1;
7656 LCONSOLE_WARN("%s: set dev_rdonly on this device\n",
7659 LCONSOLE_WARN("%s: not support dev_rdonly on this device",
7662 GOTO(out_mnt, rc = -EOPNOTSUPP);
7664 } else if (priv_dev_check_rdonly &&
7665 priv_dev_check_rdonly(osd_sb(o)->s_bdev)) {
7666 CERROR("%s: underlying device %s is marked as "
7667 "read-only. Setup failed\n", name, dev);
7669 GOTO(out_mnt, rc = -EROFS);
7672 if (!ldiskfs_has_feature_journal(o->od_mnt->mnt_sb)) {
7673 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
7674 GOTO(out_mnt, rc = -EINVAL);
7677 #ifdef LDISKFS_MOUNT_DIRDATA
7678 if (ldiskfs_has_feature_dirdata(o->od_mnt->mnt_sb))
7679 LDISKFS_SB(osd_sb(o))->s_mount_opt |= LDISKFS_MOUNT_DIRDATA;
7680 else if (strstr(name, "MDT")) /* don't complain for MGT or OSTs */
7681 CWARN("%s: device %s was upgraded from Lustre-1.x without "
7682 "enabling the dirdata feature. If you do not want to "
7683 "downgrade to Lustre-1.x again, you can enable it via "
7684 "'tune2fs -O dirdata device'\n", name, dev);
7686 inode = osd_sb(o)->s_root->d_inode;
7687 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
7688 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
7690 CERROR("%s: failed to set lma on %s root inode\n", name, dev);
7694 if (lmd_flags & LMD_FLG_NOSCRUB)
7695 o->od_auto_scrub_interval = AS_NEVER;
7697 if (blk_queue_nonrot(bdev_get_queue(osd_sb(o)->s_bdev))) {
7698 /* do not use pagecache with flash-backed storage */
7699 o->od_writethrough_cache = 0;
7700 o->od_read_cache = 0;
7711 __free_page(__page);
7716 static struct lu_device *osd_device_fini(const struct lu_env *env,
7717 struct lu_device *d)
7719 struct osd_device *o = osd_dev(d);
7723 osd_index_backup(env, o, false);
7724 osd_shutdown(env, o);
7726 osd_obj_map_fini(o);
7732 static int osd_device_init0(const struct lu_env *env,
7733 struct osd_device *o,
7734 struct lustre_cfg *cfg)
7736 struct lu_device *l = osd2lu_dev(o);
7737 struct osd_thread_info *info;
7741 /* if the module was re-loaded, env can loose its keys */
7742 rc = lu_env_refill((struct lu_env *)env);
7745 info = osd_oti_get(env);
7748 l->ld_ops = &osd_lu_ops;
7749 o->od_dt_dev.dd_ops = &osd_dt_ops;
7751 spin_lock_init(&o->od_osfs_lock);
7752 mutex_init(&o->od_otable_mutex);
7753 INIT_LIST_HEAD(&o->od_orphan_list);
7754 INIT_LIST_HEAD(&o->od_index_backup_list);
7755 INIT_LIST_HEAD(&o->od_index_restore_list);
7756 spin_lock_init(&o->od_lock);
7757 o->od_index_backup_policy = LIBP_NONE;
7760 o->od_read_cache = 1;
7761 o->od_writethrough_cache = 1;
7762 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
7764 o->od_auto_scrub_interval = AS_DEFAULT;
7766 cplen = strlcpy(o->od_svname, lustre_cfg_string(cfg, 4),
7767 sizeof(o->od_svname));
7768 if (cplen >= sizeof(o->od_svname)) {
7773 o->od_index_backup_stop = 0;
7774 o->od_index = -1; /* -1 means index is invalid */
7775 rc = server_name2index(o->od_svname, &o->od_index, NULL);
7776 if (rc == LDD_F_SV_TYPE_OST)
7779 o->od_full_scrub_ratio = OFSR_DEFAULT;
7780 o->od_full_scrub_threshold_rate = FULL_SCRUB_THRESHOLD_RATE_DEFAULT;
7781 rc = osd_mount(env, o, cfg);
7785 /* Can only check block device after mount */
7786 o->od_nonrotational =
7787 blk_queue_nonrot(bdev_get_queue(osd_sb(o)->s_bdev));
7789 rc = osd_obj_map_init(env, o);
7793 rc = lu_site_init(&o->od_site, l);
7795 GOTO(out_compat, rc);
7796 o->od_site.ls_bottom_dev = l;
7798 rc = lu_site_init_finish(&o->od_site);
7802 INIT_LIST_HEAD(&o->od_ios_list);
7803 /* setup scrub, including OI files initialization */
7805 rc = osd_scrub_setup(env, o);
7810 rc = osd_procfs_init(o, o->od_svname);
7812 CERROR("%s: can't initialize procfs: rc = %d\n",
7814 GOTO(out_scrub, rc);
7817 LASSERT(l->ld_site->ls_linkage.next != NULL);
7818 LASSERT(l->ld_site->ls_linkage.prev != NULL);
7820 /* initialize quota slave instance */
7821 /* currently it's no need to prepare qsd_instance_md for OST */
7822 if (!o->od_is_ost) {
7823 o->od_quota_slave_md = qsd_init(env, o->od_svname,
7825 o->od_proc_entry, true);
7826 if (IS_ERR(o->od_quota_slave_md)) {
7827 rc = PTR_ERR(o->od_quota_slave_md);
7828 o->od_quota_slave_md = NULL;
7829 GOTO(out_procfs, rc);
7833 o->od_quota_slave_dt = qsd_init(env, o->od_svname, &o->od_dt_dev,
7834 o->od_proc_entry, false);
7836 if (IS_ERR(o->od_quota_slave_dt)) {
7837 if (o->od_quota_slave_md != NULL) {
7838 qsd_fini(env, o->od_quota_slave_md);
7839 o->od_quota_slave_md = NULL;
7842 rc = PTR_ERR(o->od_quota_slave_dt);
7843 o->od_quota_slave_dt = NULL;
7844 GOTO(out_procfs, rc);
7852 osd_scrub_cleanup(env, o);
7854 lu_site_fini(&o->od_site);
7856 osd_obj_map_fini(o);
7863 static struct lu_device *osd_device_alloc(const struct lu_env *env,
7864 struct lu_device_type *t,
7865 struct lustre_cfg *cfg)
7867 struct osd_device *o;
7872 return ERR_PTR(-ENOMEM);
7874 rc = dt_device_init(&o->od_dt_dev, t);
7877 * Because the ctx might be revived in dt_device_init,
7878 * refill the env here
7880 lu_env_refill((struct lu_env *)env);
7881 rc = osd_device_init0(env, o, cfg);
7883 dt_device_fini(&o->od_dt_dev);
7886 if (unlikely(rc != 0))
7889 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
7892 static struct lu_device *osd_device_free(const struct lu_env *env,
7893 struct lu_device *d)
7895 struct osd_device *o = osd_dev(d);
7899 /* XXX: make osd top device in order to release reference */
7900 d->ld_site->ls_top_dev = d;
7901 lu_site_purge(env, d->ld_site, -1);
7902 if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
7903 LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
7904 lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
7906 lu_site_fini(&o->od_site);
7907 dt_device_fini(&o->od_dt_dev);
7912 static int osd_process_config(const struct lu_env *env,
7913 struct lu_device *d, struct lustre_cfg *cfg)
7915 struct osd_device *o = osd_dev(d);
7921 switch (cfg->lcfg_command) {
7923 rc = osd_mount(env, o, cfg);
7927 * For the case LCFG_PRE_CLEANUP is not called in advance,
7928 * that may happend if hit failure during mount process.
7930 osd_index_backup(env, o, false);
7931 lu_dev_del_linkage(d->ld_site, d);
7932 rc = osd_shutdown(env, o);
7935 LASSERT(&o->od_dt_dev);
7936 count = class_modify_config(cfg, PARAM_OSD,
7937 &o->od_dt_dev.dd_kobj);
7939 count = class_modify_config(cfg, PARAM_OST,
7940 &o->od_dt_dev.dd_kobj);
7941 rc = count > 0 ? 0 : count;
7943 case LCFG_PRE_CLEANUP:
7945 osd_index_backup(env, o,
7946 o->od_index_backup_policy != LIBP_NONE);
7956 static int osd_recovery_complete(const struct lu_env *env,
7957 struct lu_device *d)
7959 struct osd_device *osd = osd_dev(d);
7964 if (osd->od_quota_slave_md == NULL && osd->od_quota_slave_dt == NULL)
7968 * start qsd instance on recovery completion, this notifies the quota
7969 * slave code that we are about to process new requests now
7971 rc = qsd_start(env, osd->od_quota_slave_dt);
7972 if (rc == 0 && osd->od_quota_slave_md != NULL)
7973 rc = qsd_start(env, osd->od_quota_slave_md);
7979 * we use exports to track all osd users
7981 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
7982 struct obd_device *obd, struct obd_uuid *cluuid,
7983 struct obd_connect_data *data, void *localdata)
7985 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
7986 struct lustre_handle conn;
7991 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
7993 rc = class_connect(&conn, obd, cluuid);
7997 *exp = class_conn2export(&conn);
7999 spin_lock(&osd->od_osfs_lock);
8001 spin_unlock(&osd->od_osfs_lock);
8007 * once last export (we don't count self-export) disappeared
8008 * osd can be released
8010 static int osd_obd_disconnect(struct obd_export *exp)
8012 struct obd_device *obd = exp->exp_obd;
8013 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8014 int rc, release = 0;
8018 /* Only disconnect the underlying layers on the final disconnect. */
8019 spin_lock(&osd->od_osfs_lock);
8021 if (osd->od_connects == 0)
8023 spin_unlock(&osd->od_osfs_lock);
8025 rc = class_disconnect(exp); /* bz 9811 */
8027 if (rc == 0 && release)
8028 class_manual_cleanup(obd);
8032 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
8033 struct lu_device *dev)
8035 struct osd_device *osd = osd_dev(dev);
8036 struct lr_server_data *lsd =
8037 &osd->od_dt_dev.dd_lu_dev.ld_site->ls_tgt->lut_lsd;
8042 if (osd->od_quota_slave_md != NULL) {
8043 /* set up quota slave objects for inode */
8044 result = qsd_prepare(env, osd->od_quota_slave_md);
8049 if (osd->od_quota_slave_dt != NULL) {
8050 /* set up quota slave objects for block */
8051 result = qsd_prepare(env, osd->od_quota_slave_dt);
8057 if (lsd->lsd_feature_incompat & OBD_COMPAT_OST) {
8058 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
8059 if (lsd->lsd_feature_rocompat & OBD_ROCOMPAT_IDX_IN_IDIF) {
8060 osd->od_index_in_idif = 1;
8062 osd->od_index_in_idif = 0;
8063 result = osd_register_proc_index_in_idif(osd);
8068 osd->od_index_in_idif = 1;
8072 result = osd_fid_init(env, osd);
8077 static int osd_fid_alloc(const struct lu_env *env, struct obd_export *exp,
8078 struct lu_fid *fid, struct md_op_data *op_data)
8080 struct osd_device *osd = osd_dev(exp->exp_obd->obd_lu_dev);
8082 return seq_client_alloc_fid(env, osd->od_cl_seq, fid);
8085 static const struct lu_object_operations osd_lu_obj_ops = {
8086 .loo_object_init = osd_object_init,
8087 .loo_object_delete = osd_object_delete,
8088 .loo_object_release = osd_object_release,
8089 .loo_object_free = osd_object_free,
8090 .loo_object_print = osd_object_print,
8091 .loo_object_invariant = osd_object_invariant
8094 const struct lu_device_operations osd_lu_ops = {
8095 .ldo_object_alloc = osd_object_alloc,
8096 .ldo_process_config = osd_process_config,
8097 .ldo_recovery_complete = osd_recovery_complete,
8098 .ldo_prepare = osd_prepare,
8101 static const struct lu_device_type_operations osd_device_type_ops = {
8102 .ldto_init = osd_type_init,
8103 .ldto_fini = osd_type_fini,
8105 .ldto_start = osd_type_start,
8106 .ldto_stop = osd_type_stop,
8108 .ldto_device_alloc = osd_device_alloc,
8109 .ldto_device_free = osd_device_free,
8111 .ldto_device_init = osd_device_init,
8112 .ldto_device_fini = osd_device_fini
8115 static struct lu_device_type osd_device_type = {
8116 .ldt_tags = LU_DEVICE_DT,
8117 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
8118 .ldt_ops = &osd_device_type_ops,
8119 .ldt_ctx_tags = LCT_LOCAL,
8122 static int osd_health_check(const struct lu_env *env, struct obd_device *obd)
8124 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8125 struct super_block *sb = osd_sb(osd);
8127 return (osd->od_mnt == NULL || sb->s_flags & MS_RDONLY);
8131 * lprocfs legacy support.
8133 static struct obd_ops osd_obd_device_ops = {
8134 .o_owner = THIS_MODULE,
8135 .o_connect = osd_obd_connect,
8136 .o_disconnect = osd_obd_disconnect,
8137 .o_fid_alloc = osd_fid_alloc,
8138 .o_health_check = osd_health_check,
8141 static ssize_t track_declares_assert_show(struct kobject *kobj,
8142 struct attribute *attr,
8145 return sprintf(buf, "%d\n", ldiskfs_track_declares_assert);
8148 static ssize_t track_declares_assert_store(struct kobject *kobj,
8149 struct attribute *attr,
8150 const char *buffer, size_t count)
8152 bool track_declares_assert;
8155 rc = kstrtobool(buffer, &track_declares_assert);
8159 ldiskfs_track_declares_assert = track_declares_assert;
8163 LUSTRE_RW_ATTR(track_declares_assert);
8165 static int __init osd_init(void)
8167 struct kobject *kobj;
8170 CLASSERT(BH_DXLock < sizeof(((struct buffer_head *)0)->b_state) * 8);
8171 #if !defined(CONFIG_DEBUG_MUTEXES) && !defined(CONFIG_DEBUG_SPINLOCK)
8172 /* please, try to keep osd_thread_info smaller than a page */
8173 CLASSERT(sizeof(struct osd_thread_info) <= PAGE_SIZE);
8178 rc = lu_kmem_init(ldiskfs_caches);
8182 #ifdef CONFIG_KALLSYMS
8183 priv_dev_set_rdonly = (void *)kallsyms_lookup_name("dev_set_rdonly");
8184 priv_dev_check_rdonly =
8185 (void *)kallsyms_lookup_name("dev_check_rdonly");
8188 rc = class_register_type(&osd_obd_device_ops, NULL, true, NULL,
8189 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
8191 lu_kmem_fini(ldiskfs_caches);
8195 kobj = kset_find_obj(lustre_kset, LUSTRE_OSD_LDISKFS_NAME);
8197 rc = sysfs_create_file(kobj,
8198 &lustre_attr_track_declares_assert.attr);
8201 CWARN("osd-ldiskfs: track_declares_assert failed to register with sysfs\n");
8208 static void __exit osd_exit(void)
8210 struct kobject *kobj;
8212 kobj = kset_find_obj(lustre_kset, LUSTRE_OSD_LDISKFS_NAME);
8214 sysfs_remove_file(kobj,
8215 &lustre_attr_track_declares_assert.attr);
8218 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
8219 lu_kmem_fini(ldiskfs_caches);
8222 MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
8223 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
8224 MODULE_VERSION(LUSTRE_VERSION_STRING);
8225 MODULE_LICENSE("GPL");
8227 module_init(osd_init);
8228 module_exit(osd_exit);