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;
2201 if (ldiskfs_has_feature_extents(sb))
2202 sfs->os_maxbytes = sb->s_maxbytes;
2204 sfs->os_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2207 * Reserve some space so to avoid fragmenting the filesystem too much.
2208 * Fragmentation not only impacts performance, but can also increase
2209 * metadata overhead significantly, causing grant calculation to be
2212 * Reserve 0.78% of total space, at least 8MB for small filesystems.
2214 CLASSERT(OSD_STATFS_RESERVED > LDISKFS_MAX_BLOCK_SIZE);
2215 reserved = OSD_STATFS_RESERVED >> sb->s_blocksize_bits;
2216 if (likely(sfs->os_blocks >= reserved << OSD_STATFS_RESERVED_SHIFT))
2217 reserved = sfs->os_blocks >> OSD_STATFS_RESERVED_SHIFT;
2219 sfs->os_blocks -= reserved;
2220 sfs->os_bfree -= min(reserved, sfs->os_bfree);
2221 sfs->os_bavail -= min(reserved, sfs->os_bavail);
2224 if (unlikely(env == NULL))
2230 * Estimate space needed for file creations. We assume the largest filename
2231 * which is 2^64 - 1, hence a filename of 20 chars.
2232 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
2234 #ifdef __LDISKFS_DIR_REC_LEN
2235 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
2237 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
2241 * Concurrency: doesn't access mutable data.
2243 static void osd_conf_get(const struct lu_env *env,
2244 const struct dt_device *dev,
2245 struct dt_device_param *param)
2247 struct osd_device *d = osd_dt_dev(dev);
2248 struct super_block *sb = osd_sb(d);
2249 struct blk_integrity *bi = bdev_get_integrity(sb->s_bdev);
2254 * XXX should be taken from not-yet-existing fs abstraction layer.
2256 param->ddp_max_name_len = LDISKFS_NAME_LEN;
2257 param->ddp_max_nlink = LDISKFS_LINK_MAX;
2258 param->ddp_symlink_max = sb->s_blocksize;
2259 param->ddp_mount_type = LDD_MT_LDISKFS;
2260 if (ldiskfs_has_feature_extents(sb))
2261 param->ddp_maxbytes = sb->s_maxbytes;
2263 param->ddp_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2265 * inode are statically allocated, so per-inode space consumption
2266 * is the space consumed by the directory entry
2268 param->ddp_inodespace = PER_OBJ_USAGE;
2270 * EXT_INIT_MAX_LEN is the theoretical maximum extent size (32k blocks
2271 * = 128MB) which is unlikely to be hit in real life. Report a smaller
2272 * maximum length to not under count the actual number of extents
2273 * needed for writing a file.
2275 param->ddp_max_extent_blks = EXT_INIT_MAX_LEN >> 2;
2276 /* worst-case extent insertion metadata overhead */
2277 param->ddp_extent_tax = 6 * LDISKFS_BLOCK_SIZE(sb);
2278 param->ddp_mntopts = 0;
2279 if (test_opt(sb, XATTR_USER))
2280 param->ddp_mntopts |= MNTOPT_USERXATTR;
2281 if (test_opt(sb, POSIX_ACL))
2282 param->ddp_mntopts |= MNTOPT_ACL;
2285 * LOD might calculate the max stripe count based on max_ea_size,
2286 * so we need take account in the overhead as well,
2287 * xattr_header + magic + xattr_entry_head
2289 ea_overhead = sizeof(struct ldiskfs_xattr_header) + sizeof(__u32) +
2290 LDISKFS_XATTR_LEN(XATTR_NAME_MAX_LEN);
2292 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
2293 if (ldiskfs_has_feature_ea_inode(sb))
2294 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE -
2298 param->ddp_max_ea_size = sb->s_blocksize - ea_overhead;
2300 if (param->ddp_max_ea_size > OSD_MAX_EA_SIZE)
2301 param->ddp_max_ea_size = OSD_MAX_EA_SIZE;
2304 * Preferred RPC size for efficient disk IO. 4MB shows good
2305 * all-around performance for ldiskfs, but use bigalloc chunk size
2306 * by default if larger.
2308 #if defined(LDISKFS_CLUSTER_SIZE)
2309 if (LDISKFS_CLUSTER_SIZE(sb) > DT_DEF_BRW_SIZE)
2310 param->ddp_brw_size = LDISKFS_CLUSTER_SIZE(sb);
2313 param->ddp_brw_size = DT_DEF_BRW_SIZE;
2315 param->ddp_t10_cksum_type = 0;
2317 unsigned short interval = blk_integrity_interval(bi);
2318 name = blk_integrity_name(bi);
2326 if (strncmp(name, "T10-DIF-TYPE",
2327 sizeof("T10-DIF-TYPE") - 1) == 0) {
2328 /* also skip "1/3-" at end */
2329 const int type_off = sizeof("T10-DIF-TYPE.");
2330 char type_number = name[type_off - 2];
2332 if (interval != 512 && interval != 4096) {
2333 CERROR("%s: unsupported T10PI sector size %u\n",
2334 d->od_svname, interval);
2335 } else if (type_number != '1' && type_number != '3') {
2336 CERROR("%s: unsupported T10PI type %s\n",
2337 d->od_svname, name);
2338 } else if (strcmp(name + type_off, "CRC") == 0) {
2339 d->od_t10_type = type_number == '1' ?
2340 OSD_T10_TYPE1_CRC : OSD_T10_TYPE3_CRC;
2341 param->ddp_t10_cksum_type = interval == 512 ?
2342 OBD_CKSUM_T10CRC512 :
2344 } else if (strcmp(name + type_off, "IP") == 0) {
2345 d->od_t10_type = type_number == '1' ?
2346 OSD_T10_TYPE1_IP : OSD_T10_TYPE3_IP;
2347 param->ddp_t10_cksum_type = interval == 512 ?
2348 OBD_CKSUM_T10IP512 :
2351 CERROR("%s: unsupported checksum type of "
2353 d->od_svname, name);
2357 CERROR("%s: unsupported T10PI type '%s'",
2358 d->od_svname, name);
2364 * Concurrency: shouldn't matter.
2366 static int osd_sync(const struct lu_env *env, struct dt_device *d)
2369 struct super_block *s = osd_sb(osd_dt_dev(d));
2372 down_read(&s->s_umount);
2373 rc = s->s_op->sync_fs(s, 1);
2374 up_read(&s->s_umount);
2376 CDEBUG(D_CACHE, "%s: synced OSD: rc = %d\n", osd_dt_dev(d)->od_svname,
2383 * Start commit for OSD device.
2385 * An implementation of dt_commit_async method for OSD device.
2386 * Asychronously starts underlayng fs sync and thereby a transaction
2389 * \param env environment
2390 * \param d dt device
2392 * \see dt_device_operations
2394 static int osd_commit_async(const struct lu_env *env,
2395 struct dt_device *d)
2397 struct super_block *s = osd_sb(osd_dt_dev(d));
2402 CDEBUG(D_HA, "%s: async commit OSD\n", osd_dt_dev(d)->od_svname);
2403 down_read(&s->s_umount);
2404 rc = s->s_op->sync_fs(s, 0);
2405 up_read(&s->s_umount);
2410 /* Our own copy of the set readonly functions if present, or NU if not. */
2411 static int (*priv_dev_set_rdonly)(struct block_device *bdev);
2412 static int (*priv_dev_check_rdonly)(struct block_device *bdev);
2413 /* static int (*priv_dev_clear_rdonly)(struct block_device *bdev); */
2416 * Concurrency: shouldn't matter.
2418 static int osd_ro(const struct lu_env *env, struct dt_device *d)
2420 struct super_block *sb = osd_sb(osd_dt_dev(d));
2421 struct block_device *dev = sb->s_bdev;
2422 int rc = -EOPNOTSUPP;
2426 if (priv_dev_set_rdonly) {
2427 struct block_device *jdev = LDISKFS_SB(sb)->journal_bdev;
2430 CERROR("*** setting %s read-only ***\n",
2431 osd_dt_dev(d)->od_svname);
2433 if (sb->s_op->freeze_fs) {
2434 rc = sb->s_op->freeze_fs(sb);
2439 if (jdev && (jdev != dev)) {
2440 CDEBUG(D_IOCTL | D_HA, "set journal dev %lx rdonly\n",
2442 priv_dev_set_rdonly(jdev);
2444 CDEBUG(D_IOCTL | D_HA, "set dev %lx rdonly\n", (long)dev);
2445 priv_dev_set_rdonly(dev);
2447 if (sb->s_op->unfreeze_fs)
2448 sb->s_op->unfreeze_fs(sb);
2453 CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
2454 osd_dt_dev(d)->od_svname, (long)dev, rc);
2460 * Note: we do not count into QUOTA here.
2461 * If we mount with --data_journal we may need more.
2463 const int osd_dto_credits_noquota[DTO_NR] = {
2466 * INDEX_EXTRA_TRANS_BLOCKS(8) +
2467 * SINGLEDATA_TRANS_BLOCKS(8)
2468 * XXX Note: maybe iam need more, since iam have more level than
2471 [DTO_INDEX_INSERT] = 16,
2474 * just modify a single entry, probably merge few within a block
2476 [DTO_INDEX_DELETE] = 1,
2480 [DTO_INDEX_UPDATE] = 16,
2482 * 4(inode, inode bits, groups, GDT)
2483 * notice: OI updates are counted separately with DTO_INDEX_INSERT
2485 [DTO_OBJECT_CREATE] = 4,
2487 * 4(inode, inode bits, groups, GDT)
2488 * notice: OI updates are counted separately with DTO_INDEX_DELETE
2490 [DTO_OBJECT_DELETE] = 4,
2492 * Attr set credits (inode)
2494 [DTO_ATTR_SET_BASE] = 1,
2496 * Xattr set. The same as xattr of EXT3.
2497 * DATA_TRANS_BLOCKS(14)
2498 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
2499 * are also counted in. Do not know why?
2501 [DTO_XATTR_SET] = 14,
2503 * credits for inode change during write.
2505 [DTO_WRITE_BASE] = 3,
2507 * credits for single block write.
2509 [DTO_WRITE_BLOCK] = 14,
2511 * Attr set credits for chown.
2512 * This is extra credits for setattr, and it is null without quota
2514 [DTO_ATTR_SET_CHOWN] = 0
2517 static const struct dt_device_operations osd_dt_ops = {
2518 .dt_root_get = osd_root_get,
2519 .dt_statfs = osd_statfs,
2520 .dt_trans_create = osd_trans_create,
2521 .dt_trans_start = osd_trans_start,
2522 .dt_trans_stop = osd_trans_stop,
2523 .dt_trans_cb_add = osd_trans_cb_add,
2524 .dt_conf_get = osd_conf_get,
2525 .dt_sync = osd_sync,
2527 .dt_commit_async = osd_commit_async,
2530 static void osd_read_lock(const struct lu_env *env, struct dt_object *dt,
2533 struct osd_object *obj = osd_dt_obj(dt);
2534 struct osd_thread_info *oti = osd_oti_get(env);
2536 LINVRNT(osd_invariant(obj));
2538 LASSERT(obj->oo_owner != env);
2539 down_read_nested(&obj->oo_sem, role);
2541 LASSERT(obj->oo_owner == NULL);
2545 static void osd_write_lock(const struct lu_env *env, struct dt_object *dt,
2548 struct osd_object *obj = osd_dt_obj(dt);
2549 struct osd_thread_info *oti = osd_oti_get(env);
2551 LINVRNT(osd_invariant(obj));
2553 LASSERT(obj->oo_owner != env);
2554 down_write_nested(&obj->oo_sem, role);
2556 LASSERT(obj->oo_owner == NULL);
2557 obj->oo_owner = env;
2561 static void osd_read_unlock(const struct lu_env *env, struct dt_object *dt)
2563 struct osd_object *obj = osd_dt_obj(dt);
2564 struct osd_thread_info *oti = osd_oti_get(env);
2566 LINVRNT(osd_invariant(obj));
2568 LASSERT(oti->oti_r_locks > 0);
2570 up_read(&obj->oo_sem);
2573 static void osd_write_unlock(const struct lu_env *env, struct dt_object *dt)
2575 struct osd_object *obj = osd_dt_obj(dt);
2576 struct osd_thread_info *oti = osd_oti_get(env);
2578 LINVRNT(osd_invariant(obj));
2580 LASSERT(obj->oo_owner == env);
2581 LASSERT(oti->oti_w_locks > 0);
2583 obj->oo_owner = NULL;
2584 up_write(&obj->oo_sem);
2587 static int osd_write_locked(const struct lu_env *env, struct dt_object *dt)
2589 struct osd_object *obj = osd_dt_obj(dt);
2591 LINVRNT(osd_invariant(obj));
2593 return obj->oo_owner == env;
2596 static struct timespec *osd_inode_time(const struct lu_env *env,
2597 struct inode *inode, __u64 seconds)
2599 struct osd_thread_info *oti = osd_oti_get(env);
2600 struct timespec *t = &oti->oti_time;
2602 t->tv_sec = seconds;
2604 *t = timespec_trunc(*t, inode->i_sb->s_time_gran);
2608 static void osd_inode_getattr(const struct lu_env *env,
2609 struct inode *inode, struct lu_attr *attr)
2611 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
2612 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
2613 LA_PROJID | LA_FLAGS | LA_NLINK | LA_RDEV |
2614 LA_BLKSIZE | LA_TYPE;
2616 attr->la_atime = inode->i_atime.tv_sec;
2617 attr->la_mtime = inode->i_mtime.tv_sec;
2618 attr->la_ctime = inode->i_ctime.tv_sec;
2619 attr->la_mode = inode->i_mode;
2620 attr->la_size = i_size_read(inode);
2621 attr->la_blocks = inode->i_blocks;
2622 attr->la_uid = i_uid_read(inode);
2623 attr->la_gid = i_gid_read(inode);
2624 attr->la_projid = i_projid_read(inode);
2625 attr->la_flags = ll_inode_to_ext_flags(inode->i_flags);
2626 attr->la_nlink = inode->i_nlink;
2627 attr->la_rdev = inode->i_rdev;
2628 attr->la_blksize = 1 << inode->i_blkbits;
2629 attr->la_blkbits = inode->i_blkbits;
2631 * Ext4 did not transfer inherit flags from raw inode
2632 * to inode flags, and ext4 internally test raw inode
2633 * @i_flags directly. Instead of patching ext4, we do it here.
2635 if (LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL)
2636 attr->la_flags |= LUSTRE_PROJINHERIT_FL;
2639 static int osd_attr_get(const struct lu_env *env, struct dt_object *dt,
2640 struct lu_attr *attr)
2642 struct osd_object *obj = osd_dt_obj(dt);
2644 if (unlikely(!dt_object_exists(dt)))
2646 if (unlikely(obj->oo_destroyed))
2649 LASSERT(!dt_object_remote(dt));
2650 LINVRNT(osd_invariant(obj));
2652 spin_lock(&obj->oo_guard);
2653 osd_inode_getattr(env, obj->oo_inode, attr);
2654 if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL) {
2655 attr->la_valid |= LA_FLAGS;
2656 attr->la_flags |= LUSTRE_ORPHAN_FL;
2658 spin_unlock(&obj->oo_guard);
2663 static int osd_declare_attr_qid(const struct lu_env *env,
2664 struct osd_object *obj,
2665 struct osd_thandle *oh, long long bspace,
2666 qid_t old_id, qid_t new_id, bool enforce,
2667 unsigned int type, bool ignore_edquot)
2670 struct osd_thread_info *info = osd_oti_get(env);
2671 struct lquota_id_info *qi = &info->oti_qi;
2673 qi->lqi_type = type;
2674 /* inode accounting */
2675 qi->lqi_is_blk = false;
2677 /* one more inode for the new id ... */
2678 qi->lqi_id.qid_uid = new_id;
2680 /* Reserve credits for the new id */
2681 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
2682 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2687 /* and one less inode for the current id */
2688 qi->lqi_id.qid_uid = old_id;
2690 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2691 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2696 /* block accounting */
2697 qi->lqi_is_blk = true;
2699 /* more blocks for the new id ... */
2700 qi->lqi_id.qid_uid = new_id;
2701 qi->lqi_space = bspace;
2703 * Credits for the new uid has been reserved, re-use "obj"
2704 * to save credit reservation.
2706 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2707 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2712 /* and finally less blocks for the current uid */
2713 qi->lqi_id.qid_uid = old_id;
2714 qi->lqi_space = -bspace;
2715 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2716 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2722 static int osd_declare_attr_set(const struct lu_env *env,
2723 struct dt_object *dt,
2724 const struct lu_attr *attr,
2725 struct thandle *handle)
2727 struct osd_thandle *oh;
2728 struct osd_object *obj;
2737 LASSERT(dt != NULL);
2738 LASSERT(handle != NULL);
2740 obj = osd_dt_obj(dt);
2741 LASSERT(osd_invariant(obj));
2743 oh = container_of0(handle, struct osd_thandle, ot_super);
2744 LASSERT(oh->ot_handle == NULL);
2746 osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
2747 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2749 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
2750 osd_dto_credits_noquota[DTO_XATTR_SET]);
2752 if (attr == NULL || obj->oo_inode == NULL)
2755 bspace = obj->oo_inode->i_blocks << 9;
2756 bspace = toqb(bspace);
2759 * Changing ownership is always preformed by super user, it should not
2760 * fail with EDQUOT unless required explicitly.
2762 * We still need to call the osd_declare_qid() to calculate the journal
2763 * credits for updating quota accounting files and to trigger quota
2764 * space adjustment once the operation is completed.
2766 if (attr->la_valid & LA_UID || attr->la_valid & LA_GID) {
2767 bool ignore_edquot = !(attr->la_flags & LUSTRE_SET_SYNC_FL);
2770 CDEBUG(D_QUOTA, "%s: enforce quota on UID %u, GID %u"
2771 "(the quota space is %lld)\n",
2772 obj->oo_inode->i_sb->s_id, attr->la_uid,
2773 attr->la_gid, bspace);
2776 uid = i_uid_read(obj->oo_inode);
2777 enforce = (attr->la_valid & LA_UID) && (attr->la_uid != uid);
2778 rc = osd_declare_attr_qid(env, obj, oh, bspace, uid,
2779 attr->la_uid, enforce, USRQUOTA,
2784 gid = i_gid_read(obj->oo_inode);
2785 enforce = (attr->la_valid & LA_GID) && (attr->la_gid != gid);
2786 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2787 i_gid_read(obj->oo_inode),
2788 attr->la_gid, enforce, GRPQUOTA,
2794 #ifdef HAVE_PROJECT_QUOTA
2795 if (attr->la_valid & LA_PROJID) {
2796 __u32 projid = i_projid_read(obj->oo_inode);
2798 enforce = (attr->la_valid & LA_PROJID) &&
2799 (attr->la_projid != projid);
2800 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2801 (qid_t)projid, (qid_t)attr->la_projid,
2802 enforce, PRJQUOTA, true);
2810 static int osd_inode_setattr(const struct lu_env *env,
2811 struct inode *inode, const struct lu_attr *attr)
2813 __u64 bits = attr->la_valid;
2815 /* Only allow set size for regular file */
2816 if (!S_ISREG(inode->i_mode))
2817 bits &= ~(LA_SIZE | LA_BLOCKS);
2822 if (bits & LA_ATIME)
2823 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
2824 if (bits & LA_CTIME)
2825 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
2826 if (bits & LA_MTIME)
2827 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
2828 if (bits & LA_SIZE) {
2829 spin_lock(&inode->i_lock);
2830 LDISKFS_I(inode)->i_disksize = attr->la_size;
2831 i_size_write(inode, attr->la_size);
2832 spin_unlock(&inode->i_lock);
2836 * OSD should not change "i_blocks" which is used by quota.
2837 * "i_blocks" should be changed by ldiskfs only.
2840 inode->i_mode = (inode->i_mode & S_IFMT) |
2841 (attr->la_mode & ~S_IFMT);
2843 i_uid_write(inode, attr->la_uid);
2845 i_gid_write(inode, attr->la_gid);
2846 if (bits & LA_PROJID)
2847 i_projid_write(inode, attr->la_projid);
2848 if (bits & LA_NLINK)
2849 set_nlink(inode, attr->la_nlink);
2851 inode->i_rdev = attr->la_rdev;
2853 if (bits & LA_FLAGS) {
2854 /* always keep S_NOCMTIME */
2855 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
2858 * Ext4 did not transfer inherit flags from
2859 * @inode->i_flags to raw inode i_flags when writing
2860 * flags, we do it explictly here.
2862 if (attr->la_flags & LUSTRE_PROJINHERIT_FL)
2863 LDISKFS_I(inode)->i_flags |= LUSTRE_PROJINHERIT_FL;
2865 LDISKFS_I(inode)->i_flags &= ~LUSTRE_PROJINHERIT_FL;
2870 #ifdef HAVE_PROJECT_QUOTA
2871 static int osd_transfer_project(struct inode *inode, __u32 projid)
2873 struct super_block *sb = inode->i_sb;
2874 struct ldiskfs_inode_info *ei = LDISKFS_I(inode);
2877 struct ldiskfs_iloc iloc;
2878 struct ldiskfs_inode *raw_inode;
2879 struct dquot *transfer_to[LDISKFS_MAXQUOTAS] = { };
2881 if (!ldiskfs_has_feature_project(sb)) {
2882 LASSERT(__kprojid_val(LDISKFS_I(inode)->i_projid)
2883 == LDISKFS_DEF_PROJID);
2884 if (projid != LDISKFS_DEF_PROJID)
2890 if (LDISKFS_INODE_SIZE(sb) <= LDISKFS_GOOD_OLD_INODE_SIZE)
2893 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
2894 if (projid_eq(kprojid, LDISKFS_I(inode)->i_projid))
2897 err = ldiskfs_get_inode_loc(inode, &iloc);
2901 raw_inode = ldiskfs_raw_inode(&iloc);
2902 if (!LDISKFS_FITS_IN_INODE(raw_inode, ei, i_projid)) {
2909 dquot_initialize(inode);
2910 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
2911 if (transfer_to[PRJQUOTA]) {
2912 err = __dquot_transfer(inode, transfer_to);
2913 dqput(transfer_to[PRJQUOTA]);
2922 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
2926 if ((attr->la_valid & LA_UID && attr->la_uid != i_uid_read(inode)) ||
2927 (attr->la_valid & LA_GID && attr->la_gid != i_gid_read(inode))) {
2930 ll_vfs_dq_init(inode);
2932 if (attr->la_valid & LA_UID)
2933 iattr.ia_valid |= ATTR_UID;
2934 if (attr->la_valid & LA_GID)
2935 iattr.ia_valid |= ATTR_GID;
2936 iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
2937 iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
2939 rc = ll_vfs_dq_transfer(inode, &iattr);
2941 CERROR("%s: quota transfer failed: rc = %d. Is quota "
2942 "enforcement enabled on the ldiskfs "
2943 "filesystem?\n", inode->i_sb->s_id, rc);
2948 /* Handle project id transfer here properly */
2949 if (attr->la_valid & LA_PROJID &&
2950 attr->la_projid != i_projid_read(inode)) {
2951 #ifdef HAVE_PROJECT_QUOTA
2952 rc = osd_transfer_project(inode, attr->la_projid);
2957 CERROR("%s: quota transfer failed: rc = %d. Is project "
2958 "enforcement enabled on the ldiskfs "
2959 "filesystem?\n", inode->i_sb->s_id, rc);
2966 static int osd_attr_set(const struct lu_env *env,
2967 struct dt_object *dt,
2968 const struct lu_attr *attr,
2969 struct thandle *handle)
2971 struct osd_object *obj = osd_dt_obj(dt);
2972 struct inode *inode;
2975 if (!dt_object_exists(dt))
2978 LASSERT(handle != NULL);
2979 LASSERT(!dt_object_remote(dt));
2980 LASSERT(osd_invariant(obj));
2982 osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
2984 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING) &&
2985 !osd_obj2dev(obj)->od_is_ost) {
2986 struct osd_thread_info *oti = osd_oti_get(env);
2987 const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
2988 struct lu_fid *fid1 = &oti->oti_fid;
2989 struct osd_inode_id *id = &oti->oti_id;
2990 struct iam_path_descr *ipd;
2991 struct iam_container *bag;
2992 struct osd_thandle *oh;
2995 fid_cpu_to_be(fid1, fid0);
2996 memset(id, 1, sizeof(*id));
2997 bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
2998 fid0)->oi_dir.od_container;
2999 ipd = osd_idx_ipd_get(env, bag);
3000 if (unlikely(ipd == NULL))
3003 oh = container_of0(handle, struct osd_thandle, ot_super);
3004 rc = iam_update(oh->ot_handle, bag,
3005 (const struct iam_key *)fid1,
3006 (const struct iam_rec *)id, ipd);
3007 osd_ipd_put(env, bag, ipd);
3008 return(rc > 0 ? 0 : rc);
3011 inode = obj->oo_inode;
3013 rc = osd_quota_transfer(inode, attr);
3017 spin_lock(&obj->oo_guard);
3018 rc = osd_inode_setattr(env, inode, attr);
3019 spin_unlock(&obj->oo_guard);
3023 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3025 if (!(attr->la_valid & LA_FLAGS))
3028 /* Let's check if there are extra flags need to be set into LMA */
3029 if (attr->la_flags & LUSTRE_LMA_FL_MASKS) {
3030 struct osd_thread_info *info = osd_oti_get(env);
3031 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
3033 LASSERT(!obj->oo_pfid_in_lma);
3035 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
3036 &info->oti_ost_attrs);
3040 lma->lma_incompat |=
3041 lustre_to_lma_flags(attr->la_flags);
3042 lustre_lma_swab(lma);
3043 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA,
3044 lma, sizeof(*lma), XATTR_REPLACE);
3046 struct osd_device *osd = osd_obj2dev(obj);
3048 CWARN("%s: set "DFID" lma flags %u failed: rc = %d\n",
3049 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)),
3050 lma->lma_incompat, rc);
3053 attr->la_flags & LUSTRE_LMA_FL_MASKS;
3055 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
3058 osd_trans_exec_check(env, handle, OSD_OT_ATTR_SET);
3063 static struct dentry *osd_child_dentry_get(const struct lu_env *env,
3064 struct osd_object *obj,
3065 const char *name, const int namelen)
3067 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
3070 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
3071 umode_t mode, struct dt_allocation_hint *hint,
3072 struct thandle *th, struct lu_attr *attr)
3075 struct osd_device *osd = osd_obj2dev(obj);
3076 struct osd_thandle *oth;
3077 struct dt_object *parent = NULL;
3078 struct inode *inode;
3079 uid_t owner[2] = {0, 0};
3081 if (attr->la_valid & LA_UID)
3082 owner[0] = attr->la_uid;
3083 if (attr->la_valid & LA_GID)
3084 owner[1] = attr->la_gid;
3086 LINVRNT(osd_invariant(obj));
3087 LASSERT(obj->oo_inode == NULL);
3088 LASSERT(obj->oo_hl_head == NULL);
3090 if (S_ISDIR(mode) && ldiskfs_pdo) {
3092 ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
3093 if (obj->oo_hl_head == NULL)
3097 oth = container_of(th, struct osd_thandle, ot_super);
3098 LASSERT(oth->ot_handle->h_transaction != NULL);
3100 if (hint != NULL && hint->dah_parent != NULL &&
3101 !dt_object_remote(hint->dah_parent))
3102 parent = hint->dah_parent;
3104 inode = ldiskfs_create_inode(oth->ot_handle,
3105 parent ? osd_dt_obj(parent)->oo_inode :
3106 osd_sb(osd)->s_root->d_inode,
3108 if (!IS_ERR(inode)) {
3109 /* Do not update file c/mtime in ldiskfs. */
3110 inode->i_flags |= S_NOCMTIME;
3113 * For new created object, it must be consistent,
3114 * and it is unnecessary to scrub against it.
3116 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
3118 obj->oo_inode = inode;
3121 if (obj->oo_hl_head != NULL) {
3122 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
3123 obj->oo_hl_head = NULL;
3125 result = PTR_ERR(inode);
3127 LINVRNT(osd_invariant(obj));
3135 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
3136 struct lu_attr *attr,
3137 struct dt_allocation_hint *hint,
3138 struct dt_object_format *dof,
3142 struct osd_thandle *oth;
3143 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX | S_ISGID));
3145 LASSERT(S_ISDIR(attr->la_mode));
3147 oth = container_of(th, struct osd_thandle, ot_super);
3148 LASSERT(oth->ot_handle->h_transaction != NULL);
3149 result = osd_mkfile(info, obj, mode, hint, th, attr);
3154 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
3155 struct lu_attr *attr,
3156 struct dt_allocation_hint *hint,
3157 struct dt_object_format *dof,
3161 struct osd_thandle *oth;
3162 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
3164 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
3166 LASSERT(S_ISREG(attr->la_mode));
3168 oth = container_of(th, struct osd_thandle, ot_super);
3169 LASSERT(oth->ot_handle->h_transaction != NULL);
3171 result = osd_mkfile(info, obj, mode, hint, th, attr);
3173 LASSERT(obj->oo_inode != NULL);
3174 if (feat->dif_flags & DT_IND_VARKEY)
3175 result = iam_lvar_create(obj->oo_inode,
3176 feat->dif_keysize_max,
3178 feat->dif_recsize_max,
3181 result = iam_lfix_create(obj->oo_inode,
3182 feat->dif_keysize_max,
3184 feat->dif_recsize_max,
3190 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
3191 struct lu_attr *attr,
3192 struct dt_allocation_hint *hint,
3193 struct dt_object_format *dof,
3196 LASSERT(S_ISREG(attr->la_mode));
3197 return osd_mkfile(info, obj, (attr->la_mode &
3198 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th,
3202 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
3203 struct lu_attr *attr,
3204 struct dt_allocation_hint *hint,
3205 struct dt_object_format *dof,
3208 LASSERT(S_ISLNK(attr->la_mode));
3209 return osd_mkfile(info, obj, (attr->la_mode &
3210 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th,
3214 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
3215 struct lu_attr *attr,
3216 struct dt_allocation_hint *hint,
3217 struct dt_object_format *dof,
3220 umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
3223 LINVRNT(osd_invariant(obj));
3224 LASSERT(obj->oo_inode == NULL);
3225 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
3226 S_ISFIFO(mode) || S_ISSOCK(mode));
3228 result = osd_mkfile(info, obj, mode, hint, th, attr);
3230 LASSERT(obj->oo_inode != NULL);
3232 * This inode should be marked dirty for i_rdev. Currently
3233 * that is done in the osd_attr_init().
3235 init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
3238 LINVRNT(osd_invariant(obj));
3242 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
3244 struct dt_allocation_hint *hint,
3245 struct dt_object_format *dof,
3248 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
3250 osd_obj_type_f result;
3266 result = osd_mk_index;
3277 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
3278 struct dt_object *parent, struct dt_object *child,
3283 ah->dah_parent = parent;
3284 ah->dah_mode = child_mode;
3286 if (parent != NULL && !dt_object_remote(parent)) {
3287 /* will help to find FID->ino at dt_insert("..") */
3288 struct osd_object *pobj = osd_dt_obj(parent);
3290 osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
3294 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
3295 struct lu_attr *attr, struct dt_object_format *dof)
3297 struct inode *inode = obj->oo_inode;
3298 __u64 valid = attr->la_valid;
3301 attr->la_valid &= ~(LA_TYPE | LA_MODE);
3303 if (dof->dof_type != DFT_NODE)
3304 attr->la_valid &= ~LA_RDEV;
3305 if ((valid & LA_ATIME) && (attr->la_atime == inode->i_atime.tv_sec))
3306 attr->la_valid &= ~LA_ATIME;
3307 if ((valid & LA_CTIME) && (attr->la_ctime == inode->i_ctime.tv_sec))
3308 attr->la_valid &= ~LA_CTIME;
3309 if ((valid & LA_MTIME) && (attr->la_mtime == inode->i_mtime.tv_sec))
3310 attr->la_valid &= ~LA_MTIME;
3312 result = osd_quota_transfer(inode, attr);
3316 if (attr->la_valid != 0) {
3317 result = osd_inode_setattr(info->oti_env, inode, attr);
3319 * The osd_inode_setattr() should always succeed here. The
3320 * only error that could be returned is EDQUOT when we are
3321 * trying to change the UID or GID of the inode. However, this
3322 * should not happen since quota enforcement is no longer
3323 * enabled on ldiskfs (lquota takes care of it).
3325 LASSERTF(result == 0, "%d\n", result);
3326 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3329 attr->la_valid = valid;
3333 * Helper function for osd_create()
3335 * \retval 0, on success
3337 static int __osd_create(struct osd_thread_info *info, struct osd_object *obj,
3338 struct lu_attr *attr, struct dt_allocation_hint *hint,
3339 struct dt_object_format *dof, struct thandle *th)
3344 osd_trans_exec_op(info->oti_env, th, OSD_OT_CREATE);
3346 /* we drop umask so that permissions we pass are not affected */
3347 umask = current->fs->umask;
3348 current->fs->umask = 0;
3350 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
3352 if (likely(obj->oo_inode != NULL)) {
3353 LASSERT(obj->oo_inode->i_state & I_NEW);
3356 * Unlock the inode before attr initialization to avoid
3357 * unnecessary dqget operations. LU-6378
3359 unlock_new_inode(obj->oo_inode);
3362 if (likely(result == 0)) {
3363 osd_attr_init(info, obj, attr, dof);
3364 osd_object_init0(obj);
3367 /* restore previous umask value */
3368 current->fs->umask = umask;
3370 osd_trans_exec_check(info->oti_env, th, OSD_OT_CREATE);
3376 * Helper function for osd_create()
3378 * \retval 0, on success
3380 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
3381 const struct lu_fid *fid, struct thandle *th)
3383 struct osd_thread_info *info = osd_oti_get(env);
3384 struct osd_inode_id *id = &info->oti_id;
3385 struct osd_device *osd = osd_obj2dev(obj);
3386 struct osd_thandle *oh;
3389 LASSERT(obj->oo_inode != NULL);
3391 oh = container_of0(th, struct osd_thandle, ot_super);
3392 LASSERT(oh->ot_handle);
3393 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3395 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
3396 rc = osd_oi_insert(info, osd, fid, id, oh->ot_handle,
3397 OI_CHECK_FLD, NULL);
3398 osd_trans_exec_check(env, th, OSD_OT_INSERT);
3403 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
3404 u64 seq, struct lu_seq_range *range)
3406 struct seq_server_site *ss = osd_seq_site(osd);
3408 if (fid_seq_is_idif(seq)) {
3409 fld_range_set_ost(range);
3410 range->lsr_index = idif_ost_idx(seq);
3414 if (!fid_seq_in_fldb(seq)) {
3415 fld_range_set_mdt(range);
3418 * FIXME: If ss is NULL, it suppose not get lsr_index
3421 range->lsr_index = ss->ss_node_id;
3425 LASSERT(ss != NULL);
3426 fld_range_set_any(range);
3427 /* OSD will only do local fld lookup */
3428 return fld_local_lookup(env, ss->ss_server_fld, seq, range);
3431 static int osd_declare_create(const struct lu_env *env, struct dt_object *dt,
3432 struct lu_attr *attr,
3433 struct dt_allocation_hint *hint,
3434 struct dt_object_format *dof,
3435 struct thandle *handle)
3437 struct osd_thandle *oh;
3442 LASSERT(handle != NULL);
3444 oh = container_of0(handle, struct osd_thandle, ot_super);
3445 LASSERT(oh->ot_handle == NULL);
3448 * EA object consumes more credits than regular object: osd_mk_index
3449 * vs. osd_mkreg: osd_mk_index will create 2 blocks for root_node and
3450 * leaf_node, could involves the block, block bitmap, groups, GDT
3451 * change for each block, so add 4 * 2 credits in that case.
3453 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
3454 osd_dto_credits_noquota[DTO_OBJECT_CREATE] +
3455 (dof->dof_type == DFT_INDEX) ? 4 * 2 : 0);
3457 * Reuse idle OI block may cause additional one OI block
3460 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3461 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
3463 /* will help to find FID->ino mapping at dt_insert() */
3464 rc = osd_idc_find_and_init(env, osd_obj2dev(osd_dt_obj(dt)),
3472 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid,
3473 attr->la_projid, 1, oh, osd_dt_obj(dt),
3474 NULL, OSD_QID_INODE);
3482 * Called to destroy on-disk representation of the object
3484 * Concurrency: must be locked
3486 static int osd_declare_destroy(const struct lu_env *env, struct dt_object *dt,
3489 struct osd_object *obj = osd_dt_obj(dt);
3490 struct inode *inode = obj->oo_inode;
3491 struct osd_thandle *oh;
3499 oh = container_of0(th, struct osd_thandle, ot_super);
3500 LASSERT(oh->ot_handle == NULL);
3502 osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
3503 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
3505 /* For removing agent entry */
3506 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu))
3507 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
3510 * Recycle idle OI leaf may cause additional three OI blocks
3513 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3514 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3515 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
3516 /* one less inode */
3517 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3518 i_projid_read(inode), -1, oh, obj, NULL,
3522 /* data to be truncated */
3523 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3524 i_projid_read(inode), 0, oh, obj, NULL,
3530 * will help to find FID->ino when this object is being
3533 rc = osd_idc_find_and_init(env, osd_obj2dev(obj), obj);
3538 static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
3541 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3542 struct osd_object *obj = osd_dt_obj(dt);
3543 struct inode *inode = obj->oo_inode;
3544 struct osd_device *osd = osd_obj2dev(obj);
3545 struct osd_thandle *oh;
3550 oh = container_of0(th, struct osd_thandle, ot_super);
3551 LASSERT(oh->ot_handle);
3553 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
3555 if (unlikely(fid_is_acct(fid)))
3558 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu)) {
3559 result = osd_delete_from_remote_parent(env, osd, obj, oh, true);
3561 CERROR("%s: remove agent entry "DFID": rc = %d\n",
3562 osd_name(osd), PFID(fid), result);
3565 if (S_ISDIR(inode->i_mode)) {
3566 LASSERT(osd_inode_unlinked(inode) || inode->i_nlink == 1 ||
3567 inode->i_nlink == 2);
3569 spin_lock(&obj->oo_guard);
3571 spin_unlock(&obj->oo_guard);
3572 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3575 osd_trans_exec_op(env, th, OSD_OT_DESTROY);
3577 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
3579 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3580 result = osd_oi_delete(osd_oti_get(env), osd, fid,
3581 oh->ot_handle, OI_CHECK_FLD);
3583 osd_trans_exec_check(env, th, OSD_OT_DESTROY);
3584 /* XXX: add to ext3 orphan list */
3585 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
3587 /* not needed in the cache anymore */
3588 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
3589 obj->oo_destroyed = 1;
3595 * Put the fid into lustre_mdt_attrs, and then place the structure
3596 * inode's ea. This fid should not be altered during the life time
3599 * \retval +ve, on success
3600 * \retval -ve, on error
3602 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
3604 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
3605 const struct lu_fid *fid, __u32 compat, __u32 incompat)
3607 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
3608 struct lustre_mdt_attrs *lma = &loa->loa_lma;
3613 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INLMA))
3616 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_OST_EA_FID_SET))
3619 lustre_loa_init(loa, fid, compat, incompat);
3620 lustre_loa_swab(loa, false);
3623 * For the OST device with 256 bytes inode size by default,
3624 * the PFID EA will be stored together with LMA EA to avoid
3625 * performance trouble. Otherwise the PFID EA can be stored
3626 * independently. LU-8998
3628 if ((compat & LMAC_FID_ON_OST) &&
3629 LDISKFS_INODE_SIZE(inode->i_sb) <= 256)
3630 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3631 sizeof(*loa), XATTR_CREATE);
3633 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3634 sizeof(*lma), XATTR_CREATE);
3636 * LMA may already exist, but we need to check that all the
3637 * desired compat/incompat flags have been added.
3639 if (unlikely(rc == -EEXIST)) {
3640 rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
3641 XATTR_NAME_LMA, (void *)loa, sizeof(*loa));
3645 if (rc < sizeof(*lma))
3648 lustre_loa_swab(loa, true);
3649 if (lu_fid_eq(fid, &lma->lma_self_fid) &&
3650 ((compat == 0 && incompat == 0) ||
3651 (!(~lma->lma_compat & compat) &&
3652 !(~lma->lma_incompat & incompat))))
3655 lma->lma_self_fid = *fid;
3656 lma->lma_compat |= compat;
3657 lma->lma_incompat |= incompat;
3658 if (rc == sizeof(*lma)) {
3659 lustre_lma_swab(lma);
3660 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3661 sizeof(*lma), XATTR_REPLACE);
3663 lustre_loa_swab(loa, false);
3664 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3665 sizeof(*loa), XATTR_REPLACE);
3673 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
3674 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
3675 * To have compatilibility with 1.8 ldiskfs driver we need to have
3676 * magic number at start of fid data.
3677 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
3680 static void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
3681 const struct lu_fid *fid)
3683 if (!fid_is_namespace_visible(fid) ||
3684 OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
3685 param->edp_magic = 0;
3689 param->edp_magic = LDISKFS_LUFID_MAGIC;
3690 param->edp_len = sizeof(struct lu_fid) + 1;
3691 fid_cpu_to_be((struct lu_fid *)param->edp_data, (struct lu_fid *)fid);
3695 * Try to read the fid from inode ea into dt_rec.
3697 * \param fid object fid.
3699 * \retval 0 on success
3701 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
3702 __u32 ino, struct lu_fid *fid,
3703 struct osd_inode_id *id)
3705 struct osd_thread_info *info = osd_oti_get(env);
3706 struct inode *inode;
3710 osd_id_gen(id, ino, OSD_OII_NOGEN);
3711 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
3713 RETURN(PTR_ERR(inode));
3719 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
3721 struct inode *parent_dir,
3722 const struct lu_fid *dot_fid,
3723 const struct lu_fid *dot_dot_fid,
3724 struct osd_thandle *oth)
3726 struct ldiskfs_dentry_param *dot_ldp;
3727 struct ldiskfs_dentry_param *dot_dot_ldp;
3728 __u32 saved_nlink = dir->i_nlink;
3731 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
3732 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
3734 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3735 dot_ldp->edp_magic = 0;
3737 rc = ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
3738 dir, dot_ldp, dot_dot_ldp);
3740 * The ldiskfs_add_dot_dotdot() may dir->i_nlink as 2, then
3741 * the subseqent ref_add() will increase the dir->i_nlink
3742 * as 3. That is incorrect for new created directory.
3744 * It looks like hack, because we want to make the OSD API
3745 * to be order-independent for new created directory object
3746 * between dt_insert(..) and ref_add() operations.
3748 * Here, we only restore the in-RAM dir-inode's nlink attr,
3749 * becuase if the nlink attr is not 2, then there will be
3750 * ref_add() called following the dt_insert(..), such call
3751 * will make both the in-RAM and on-disk dir-inode's nlink
3752 * attr to be set as 2. LU-7447
3754 set_nlink(dir, saved_nlink);
3759 * Create an local agent inode for remote entry
3761 static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
3762 struct osd_device *osd,
3763 struct osd_object *pobj,
3764 const struct lu_fid *fid,
3768 struct osd_thread_info *info = osd_oti_get(env);
3769 struct inode *local;
3770 struct osd_thandle *oh;
3776 oh = container_of(th, struct osd_thandle, ot_super);
3777 LASSERT(oh->ot_handle->h_transaction != NULL);
3779 local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, type,
3781 if (IS_ERR(local)) {
3782 CERROR("%s: create local error %d\n", osd_name(osd),
3783 (int)PTR_ERR(local));
3788 * restore i_gid in case S_ISGID is set, we will inherit S_ISGID and set
3789 * correct gid on remote file, not agent here
3791 local->i_gid = current_fsgid();
3792 ldiskfs_set_inode_state(local, LDISKFS_STATE_LUSTRE_NOSCRUB);
3794 /* e2fsck doesn't like empty symlinks. Store remote FID as symlink.
3795 * That gives e2fsck something to look at and be happy, and allows
3796 * debugging if we need to determine where this symlink came from.
3798 if (S_ISLNK(type)) {
3799 CLASSERT(LDISKFS_N_BLOCKS * 4 >= FID_LEN + 1);
3800 rc = snprintf((char *)LDISKFS_I(local)->i_data,
3801 LDISKFS_N_BLOCKS * 4, DFID, PFID(fid));
3803 i_size_write(local, rc);
3804 LDISKFS_I(local)->i_disksize = rc;
3806 unlock_new_inode(local);
3808 /* Agent inode should not have project ID */
3809 #ifdef HAVE_PROJECT_QUOTA
3810 if (LDISKFS_I(pobj->oo_inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
3811 i_projid_read(pobj->oo_inode) != 0) {
3812 rc = osd_transfer_project(local, 0);
3814 CERROR("%s: quota transfer failed: rc = %d. Is project "
3815 "quota enforcement enabled on the ldiskfs "
3816 "filesystem?\n", local->i_sb->s_id, rc);
3817 RETURN(ERR_PTR(rc));
3821 /* Set special LMA flag for local agent inode */
3822 rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
3824 CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
3825 osd_name(osd), PFID(fid), rc);
3826 RETURN(ERR_PTR(rc));
3832 rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
3833 lu_object_fid(&pobj->oo_dt.do_lu),
3836 CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
3837 osd_name(osd), PFID(fid), rc);
3838 RETURN(ERR_PTR(rc));
3845 * when direntry is deleted, we have to take care of possible agent inode
3846 * referenced by that. unfortunately we can't do this at that point:
3847 * iget() within a running transaction leads to deadlock and we better do
3848 * not call that every delete declaration to save performance. so we put
3849 * a potention agent inode on a list and process that once the transaction
3850 * is over. Notice it's not any worse in terms of real orphans as regular
3851 * object destroy doesn't put inodes on the on-disk orphan list. this should
3852 * be addressed separately
3854 static int osd_schedule_agent_inode_removal(const struct lu_env *env,
3855 struct osd_thandle *oh,
3858 struct osd_device *osd = osd_dt_dev(oh->ot_super.th_dev);
3859 struct osd_obj_orphan *oor;
3866 oor->oor_env = (struct lu_env *)env;
3867 spin_lock(&osd->od_osfs_lock);
3868 list_add(&oor->oor_list, &osd->od_orphan_list);
3869 spin_unlock(&osd->od_osfs_lock);
3871 oh->ot_remove_agents = 1;
3877 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
3878 struct osd_device *osd)
3880 struct osd_thread_info *info = osd_oti_get(env);
3881 struct osd_obj_orphan *oor, *tmp;
3882 struct osd_inode_id id;
3883 struct list_head list;
3884 struct inode *inode;
3889 INIT_LIST_HEAD(&list);
3891 spin_lock(&osd->od_osfs_lock);
3892 list_for_each_entry_safe(oor, tmp, &osd->od_orphan_list, oor_list) {
3893 if (oor->oor_env == env) {
3894 list_del(&oor->oor_list);
3895 list_add(&oor->oor_list, &list);
3898 spin_unlock(&osd->od_osfs_lock);
3900 list_for_each_entry_safe(oor, tmp, &list, oor_list) {
3904 list_del(&oor->oor_list);
3907 osd_id_gen(&id, ino, OSD_OII_NOGEN);
3908 inode = osd_iget_fid(info, osd, &id, &fid);
3912 if (!osd_remote_fid(env, osd, &fid)) {
3917 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC, 1);
3919 mark_inode_dirty(inode);
3920 ldiskfs_journal_stop(jh);
3928 * OSD layer object create function for OST objects (b=11826).
3930 * The FID is inserted into inode xattr here.
3932 * \retval 0, on success
3933 * \retval -ve, on error
3935 static int osd_create(const struct lu_env *env, struct dt_object *dt,
3936 struct lu_attr *attr, struct dt_allocation_hint *hint,
3937 struct dt_object_format *dof, struct thandle *th)
3939 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3940 struct osd_object *obj = osd_dt_obj(dt);
3941 struct osd_thread_info *info = osd_oti_get(env);
3942 int result, on_ost = 0;
3946 if (dt_object_exists(dt))
3949 LINVRNT(osd_invariant(obj));
3950 LASSERT(!dt_object_remote(dt));
3951 LASSERT(osd_is_write_locked(env, obj));
3952 LASSERT(th != NULL);
3954 if (unlikely(fid_is_acct(fid)))
3956 * Quota files can't be created from the kernel any more,
3957 * 'tune2fs -O quota' will take care of creating them
3961 result = __osd_create(info, obj, attr, hint, dof, th);
3963 if (fid_is_idif(fid) &&
3964 !osd_dev(dt->do_lu.lo_dev)->od_index_in_idif) {
3965 struct lu_fid *tfid = &info->oti_fid;
3966 struct ost_id *oi = &info->oti_ostid;
3968 fid_to_ostid(fid, oi);
3969 ostid_to_fid(tfid, oi, 0);
3971 result = osd_ea_fid_set(info, obj->oo_inode, tfid,
3972 LMAC_FID_ON_OST, 0);
3974 on_ost = fid_is_on_ost(info, osd_obj2dev(obj),
3976 result = osd_ea_fid_set(info, obj->oo_inode, fid,
3977 on_ost ? LMAC_FID_ON_OST : 0,
3980 if (obj->oo_dt.do_body_ops == &osd_body_ops_new)
3981 obj->oo_dt.do_body_ops = &osd_body_ops;
3984 if (!result && !CFS_FAIL_CHECK(OBD_FAIL_OSD_NO_OI_ENTRY))
3985 result = __osd_oi_insert(env, obj, fid, th);
3988 * a small optimization - dt_insert() isn't usually applied
3989 * to OST objects, so we don't need to cache OI mapping for
3992 if (result == 0 && on_ost == 0) {
3993 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3995 result = osd_idc_find_and_init(env, osd, obj);
3996 LASSERT(result == 0);
3999 LASSERT(ergo(result == 0,
4000 dt_object_exists(dt) && !dt_object_remote(dt)));
4001 LINVRNT(osd_invariant(obj));
4005 static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
4006 struct thandle *handle)
4008 struct osd_thandle *oh;
4010 /* it's possible that object doesn't exist yet */
4011 LASSERT(handle != NULL);
4013 oh = container_of0(handle, struct osd_thandle, ot_super);
4014 LASSERT(oh->ot_handle == NULL);
4016 osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
4017 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
4019 osd_idc_find_and_init(env, osd_dev(dt->do_lu.lo_dev), osd_dt_obj(dt));
4025 * Concurrency: @dt is write locked.
4027 static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
4030 struct osd_object *obj = osd_dt_obj(dt);
4031 struct inode *inode = obj->oo_inode;
4032 struct osd_thandle *oh;
4035 if (!dt_object_exists(dt) || obj->oo_destroyed)
4038 LINVRNT(osd_invariant(obj));
4039 LASSERT(!dt_object_remote(dt));
4040 LASSERT(osd_is_write_locked(env, obj));
4041 LASSERT(th != NULL);
4043 oh = container_of0(th, struct osd_thandle, ot_super);
4044 LASSERT(oh->ot_handle != NULL);
4046 osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
4048 CDEBUG(D_INODE, DFID" increase nlink %d\n",
4049 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
4051 * The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
4052 * (65000) subdirectories by storing "1" in i_nlink if the link count
4053 * would otherwise overflow. Directory tranversal tools understand
4054 * that (st_nlink == 1) indicates that the filesystem dose not track
4055 * hard links count on the directory, and will not abort subdirectory
4056 * scanning early once (st_nlink - 2) subdirs have been found.
4058 * This also has to properly handle the case of inodes with nlink == 0
4059 * in case they are being linked into the PENDING directory
4061 spin_lock(&obj->oo_guard);
4062 if (unlikely(inode->i_nlink == 0))
4063 /* inc_nlink from 0 may cause WARN_ON */
4064 set_nlink(inode, 1);
4066 ldiskfs_inc_count(oh->ot_handle, inode);
4067 if (!S_ISDIR(inode->i_mode))
4068 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
4070 spin_unlock(&obj->oo_guard);
4072 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4073 LINVRNT(osd_invariant(obj));
4075 osd_trans_exec_check(env, th, OSD_OT_REF_ADD);
4080 static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
4081 struct thandle *handle)
4083 struct osd_thandle *oh;
4085 if (!dt_object_exists(dt))
4088 LASSERT(!dt_object_remote(dt));
4089 LASSERT(handle != NULL);
4091 oh = container_of0(handle, struct osd_thandle, ot_super);
4092 LASSERT(oh->ot_handle == NULL);
4094 osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
4095 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
4101 * Concurrency: @dt is write locked.
4103 static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
4106 struct osd_object *obj = osd_dt_obj(dt);
4107 struct inode *inode = obj->oo_inode;
4108 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4109 struct osd_thandle *oh;
4111 if (!dt_object_exists(dt))
4114 LINVRNT(osd_invariant(obj));
4115 LASSERT(!dt_object_remote(dt));
4116 LASSERT(osd_is_write_locked(env, obj));
4117 LASSERT(th != NULL);
4119 oh = container_of0(th, struct osd_thandle, ot_super);
4120 LASSERT(oh->ot_handle != NULL);
4122 osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
4124 spin_lock(&obj->oo_guard);
4126 * That can be result of upgrade from old Lustre version and
4127 * applied only to local files. Just skip this ref_del call.
4128 * ext4_unlink() only treats this as a warning, don't LASSERT here.
4130 if (inode->i_nlink == 0) {
4131 CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
4132 D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
4133 ", maybe an upgraded file? (LU-3915)\n",
4134 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
4135 spin_unlock(&obj->oo_guard);
4139 CDEBUG(D_INODE, DFID" decrease nlink %d\n",
4140 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
4142 ldiskfs_dec_count(oh->ot_handle, inode);
4143 spin_unlock(&obj->oo_guard);
4145 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4146 LINVRNT(osd_invariant(obj));
4148 osd_trans_exec_check(env, th, OSD_OT_REF_DEL);
4154 * Concurrency: @dt is read locked.
4156 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
4157 struct lu_buf *buf, const char *name)
4159 struct osd_object *obj = osd_dt_obj(dt);
4160 struct inode *inode = obj->oo_inode;
4161 struct osd_thread_info *info = osd_oti_get(env);
4162 struct dentry *dentry = &info->oti_obj_dentry;
4163 bool cache_xattr = false;
4168 /* version get is not real XATTR but uses xattr API */
4169 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4170 dt_obj_version_t *ver = buf->lb_buf;
4173 * for version we are just using xattr API but change inode
4176 if (buf->lb_len == 0)
4177 return sizeof(dt_obj_version_t);
4179 if (buf->lb_len < sizeof(dt_obj_version_t))
4182 CDEBUG(D_INODE, "Get version %#llx for inode %lu\n",
4183 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
4185 *ver = LDISKFS_I(inode)->i_fs_version;
4187 return sizeof(dt_obj_version_t);
4190 if (!dt_object_exists(dt))
4193 LASSERT(!dt_object_remote(dt));
4194 LASSERT(inode->i_op != NULL);
4195 #ifdef HAVE_IOP_XATTR
4196 LASSERT(inode->i_op->getxattr != NULL);
4199 if (strcmp(name, XATTR_NAME_LOV) == 0 ||
4200 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0)
4204 rc = osd_oxc_get(obj, name, buf);
4209 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
4210 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4211 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4212 struct filter_fid *ff;
4213 struct ost_layout *ol;
4215 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4219 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
4222 if (buf->lb_len == 0 || !buf->lb_buf)
4225 if (buf->lb_len < rc)
4229 ol = &ff->ff_layout;
4230 ol->ol_stripe_count = cpu_to_le32(loa->loa_parent_fid.f_ver >>
4231 PFID_STRIPE_IDX_BITS);
4232 ol->ol_stripe_size = cpu_to_le32(loa->loa_stripe_size);
4233 loa->loa_parent_fid.f_ver &= PFID_STRIPE_COUNT_MASK;
4234 fid_cpu_to_le(&ff->ff_parent, &loa->loa_parent_fid);
4235 if (lma->lma_compat & LMAC_COMP_INFO) {
4236 ol->ol_comp_start = cpu_to_le64(loa->loa_comp_start);
4237 ol->ol_comp_end = cpu_to_le64(loa->loa_comp_end);
4238 ol->ol_comp_id = cpu_to_le32(loa->loa_comp_id);
4240 ol->ol_comp_start = 0;
4241 ol->ol_comp_end = 0;
4245 rc = __osd_xattr_get(inode, dentry, name,
4246 buf->lb_buf, buf->lb_len);
4250 if (rc == -ENOENT || rc == -ENODATA)
4251 osd_oxc_add(obj, name, NULL, 0);
4252 else if (rc > 0 && buf->lb_buf != NULL)
4253 osd_oxc_add(obj, name, buf->lb_buf, rc);
4259 static int osd_declare_xattr_set(const struct lu_env *env,
4260 struct dt_object *dt,
4261 const struct lu_buf *buf, const char *name,
4262 int fl, struct thandle *handle)
4264 struct osd_thandle *oh;
4266 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4268 LASSERT(handle != NULL);
4270 oh = container_of0(handle, struct osd_thandle, ot_super);
4271 LASSERT(oh->ot_handle == NULL);
4273 if (strcmp(name, XATTR_NAME_LMA) == 0) {
4275 * For non-upgrading case, the LMA is set first and
4276 * usually fit inode. But for upgrade case, the LMA
4277 * may be in another separated EA block.
4279 if (dt_object_exists(dt)) {
4280 if (fl == LU_XATTR_REPLACE)
4285 } else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4287 } else if (strcmp(name, XATTR_NAME_FID) == 0) {
4288 /* We may need to delete the old PFID EA. */
4289 credits = LDISKFS_MAXQUOTAS_DEL_BLOCKS(sb);
4290 if (fl == LU_XATTR_REPLACE)
4296 * If some name entry resides on remote MDT, then will create
4297 * agent entry under remote parent. On the other hand, if the
4298 * remote entry will be removed, then related agent entry may
4299 * need to be removed from the remote parent. So there may be
4300 * kinds of cases, let's declare enough credits. The credits
4301 * for create agent entry is enough for remove case.
4303 if (strcmp(name, XATTR_NAME_LINK) == 0) {
4304 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
4305 if (dt_object_exists(dt))
4306 credits += 1; /* For updating LMA */
4310 credits += osd_dto_credits_noquota[DTO_XATTR_SET];
4315 if (buf->lb_buf == NULL && dt_object_exists(dt)) {
4317 * learn xattr size from osd_xattr_get if
4318 * attribute has not been read yet
4320 buflen = __osd_xattr_get(
4321 osd_dt_obj(dt)->oo_inode,
4322 &osd_oti_get(env)->oti_obj_dentry,
4327 buflen = buf->lb_len;
4330 if (buflen > sb->s_blocksize) {
4331 credits += osd_calc_bkmap_credits(
4333 (buflen + sb->s_blocksize - 1) >>
4334 sb->s_blocksize_bits);
4338 * xattr set may involve inode quota change, reserve credits for
4339 * dquot_initialize()
4341 credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4344 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
4349 static int osd_xattr_set_pfid(const struct lu_env *env, struct osd_object *obj,
4350 const struct lu_buf *buf, int fl,
4351 struct thandle *handle)
4353 struct osd_thread_info *info = osd_oti_get(env);
4354 struct dentry *dentry = &info->oti_obj_dentry;
4355 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4356 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4357 struct inode *inode = obj->oo_inode;
4358 struct filter_fid *ff = buf->lb_buf;
4359 struct ost_layout *ol = &ff->ff_layout;
4360 int flags = XATTR_REPLACE;
4365 if (buf->lb_len != sizeof(*ff) && buf->lb_len != sizeof(struct lu_fid))
4368 rc = osd_get_lma(info, inode, dentry, loa);
4369 if (rc == -ENODATA) {
4370 /* Usually for upgarding from old device */
4371 lustre_loa_init(loa, lu_object_fid(&obj->oo_dt.do_lu),
4372 LMAC_FID_ON_OST, 0);
4373 flags = XATTR_CREATE;
4378 if (!rc && lma->lma_compat & LMAC_STRIPE_INFO) {
4379 if ((fl & LU_XATTR_CREATE) && !(fl & LU_XATTR_REPLACE))
4382 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256) {
4383 /* Separate PFID EA from LMA */
4384 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4385 lustre_lma_swab(lma);
4386 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4387 sizeof(*lma), XATTR_REPLACE);
4389 obj->oo_pfid_in_lma = 0;
4390 rc = LU_XATTR_CREATE;
4396 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256)
4400 * Old client does not send stripe information,
4401 * then store the PFID EA on disk separatedly.
4403 if (unlikely(buf->lb_len == sizeof(struct lu_fid) ||
4404 ol->ol_stripe_size == 0))
4407 /* Remove old PFID EA entry firstly. */
4408 ll_vfs_dq_init(inode);
4409 rc = osd_removexattr(dentry, inode, XATTR_NAME_FID);
4410 if (rc == -ENODATA) {
4411 if ((fl & LU_XATTR_REPLACE) && !(fl & LU_XATTR_CREATE))
4418 fid_le_to_cpu(&loa->loa_parent_fid, &ff->ff_parent);
4419 if (likely(ol->ol_stripe_size != 0)) {
4420 loa->loa_parent_fid.f_ver |= le32_to_cpu(ol->ol_stripe_count) <<
4421 PFID_STRIPE_IDX_BITS;
4422 loa->loa_stripe_size = le32_to_cpu(ol->ol_stripe_size);
4423 lma->lma_compat |= LMAC_STRIPE_INFO;
4424 if (ol->ol_comp_id != 0) {
4425 loa->loa_comp_id = le32_to_cpu(ol->ol_comp_id);
4426 loa->loa_comp_start = le64_to_cpu(ol->ol_comp_start);
4427 loa->loa_comp_end = le64_to_cpu(ol->ol_comp_end);
4428 lma->lma_compat |= LMAC_COMP_INFO;
4432 lustre_loa_swab(loa, false);
4434 /* Store the PFID EA inside LMA. */
4435 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa, sizeof(*loa),
4438 obj->oo_pfid_in_lma = 1;
4444 * In DNE environment, the object (in spite of regular file or directory)
4445 * and its name entry may reside on different MDTs. Under such case, we will
4446 * create an agent entry on the MDT where the object resides. The agent entry
4447 * references the object locally, that makes the object to be visible to the
4448 * userspace when mounted as 'ldiskfs' directly. Then the userspace tools,
4449 * such as 'tar' can handle the object properly.
4451 * We handle the agent entry during set linkEA that is the common interface
4452 * for both regular file and directroy, can handle kinds of cases, such as
4453 * create/link/unlink/rename, and so on.
4455 * NOTE: we can NOT do that when ea_{insert,delete} that is only for directory.
4457 * XXX: There are two known issues:
4458 * 1. For one object, we will create at most one agent entry even if there
4459 * may be more than one cross-MDTs hard links on the object. So the local
4460 * e2fsck may claim that the object's nlink is larger than the name entries
4461 * that reference such inode. And in further, the e2fsck will fix the nlink
4462 * attribute to match the local references. Then it will cause the object's
4463 * nlink attribute to be inconsistent with the global references. it is bad
4464 * but not fatal. The ref_del() can handle the zero-referenced case. On the
4465 * other hand, the global namespace LFSCK can repair the object's attribute
4466 * according to the linkEA.
4467 * 2. There may be too many hard links on the object as to its linkEA overflow,
4468 * then the linkEA entry for cross-MDTs reference may be discarded. If such
4469 * case happened, then at this point, we do not know whether there are some
4470 * cross-MDTs reference. But there are local references, it guarantees that
4471 * object is visible to userspace when mounted as 'ldiskfs'. That is enough.
4473 static int osd_xattr_handle_linkea(const struct lu_env *env,
4474 struct osd_device *osd,
4475 struct osd_object *obj,
4476 const struct lu_buf *buf,
4477 struct thandle *handle)
4479 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
4480 struct lu_fid *tfid = &osd_oti_get(env)->oti_fid3;
4481 struct linkea_data ldata = { .ld_buf = (struct lu_buf *)buf };
4482 struct lu_name tmpname;
4483 struct osd_thandle *oh;
4485 bool remote = false;
4489 oh = container_of0(handle, struct osd_thandle, ot_super);
4490 LASSERT(oh->ot_handle != NULL);
4492 rc = linkea_init_with_rec(&ldata);
4494 linkea_first_entry(&ldata);
4495 while (ldata.ld_lee != NULL && !remote) {
4496 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen,
4498 if (osd_remote_fid(env, osd, tfid) > 0)
4501 linkea_next_entry(&ldata);
4503 } else if (rc == -ENODATA) {
4509 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu) && !remote) {
4510 rc = osd_delete_from_remote_parent(env, osd, obj, oh, false);
4512 CERROR("%s: failed to remove agent entry for "DFID
4513 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4514 } else if (!lu_object_has_agent_entry(&obj->oo_dt.do_lu) && remote) {
4515 rc = osd_add_to_remote_parent(env, osd, obj, oh);
4517 CERROR("%s: failed to create agent entry for "DFID
4518 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4525 * Concurrency: @dt is write locked.
4527 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
4528 const struct lu_buf *buf, const char *name, int fl,
4529 struct thandle *handle)
4531 struct osd_object *obj = osd_dt_obj(dt);
4532 struct osd_device *osd = osd_obj2dev(obj);
4533 struct inode *inode = obj->oo_inode;
4534 struct osd_thread_info *info = osd_oti_get(env);
4544 /* version set is not real XATTR */
4545 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4546 dt_obj_version_t *version = buf->lb_buf;
4549 * for version we are just using xattr API but change inode
4552 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
4554 CDEBUG(D_INODE, "Set version %#llx (old %#llx) for inode %lu\n",
4555 *version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
4557 LDISKFS_I(inode)->i_fs_version = *version;
4559 * Version is set after all inode operations are finished,
4560 * so we should mark it dirty here
4562 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4567 CDEBUG(D_INODE, DFID" set xattr '%s' with size %zu\n",
4568 PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
4571 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4574 * For the OST device with 256 bytes inode size by default,
4575 * the PFID EA will be stored together with LMA EA to avoid
4576 * performance trouble. Otherwise the PFID EA can be stored
4577 * independently. LU-8998
4579 if (strcmp(name, XATTR_NAME_FID) == 0 && osd->od_is_ost &&
4580 (LDISKFS_INODE_SIZE(inode->i_sb) <= 256 || obj->oo_pfid_in_lma)) {
4581 LASSERT(buf->lb_buf);
4583 fl = osd_xattr_set_pfid(env, obj, buf, fl, handle);
4586 } else if (strcmp(name, XATTR_NAME_LMV) == 0) {
4587 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4588 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4590 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4594 lma->lma_incompat |= LMAI_STRIPED;
4595 lustre_lma_swab(lma);
4596 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4597 sizeof(*lma), XATTR_REPLACE);
4600 } else if (strcmp(name, XATTR_NAME_LINK) == 0) {
4601 LASSERT(!osd->od_is_ost);
4603 rc = osd_xattr_handle_linkea(env, osd, obj, buf, handle);
4608 if (fl & LU_XATTR_REPLACE)
4609 fs_flags |= XATTR_REPLACE;
4611 if (fl & LU_XATTR_CREATE)
4612 fs_flags |= XATTR_CREATE;
4614 rc = __osd_xattr_set(info, inode, name, buf->lb_buf, len, fs_flags);
4615 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4618 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4619 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4620 osd_oxc_add(obj, name, buf->lb_buf, buf->lb_len);
4626 * Concurrency: @dt is read locked.
4628 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
4629 const struct lu_buf *buf)
4631 struct osd_object *obj = osd_dt_obj(dt);
4632 struct inode *inode = obj->oo_inode;
4633 struct osd_thread_info *info = osd_oti_get(env);
4634 struct dentry *dentry = &info->oti_obj_dentry;
4636 if (!dt_object_exists(dt))
4639 LASSERT(!dt_object_remote(dt));
4640 LASSERT(inode->i_op != NULL);
4641 LASSERT(inode->i_op->listxattr != NULL);
4643 dentry->d_inode = inode;
4644 dentry->d_sb = inode->i_sb;
4645 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
4648 static int osd_declare_xattr_del(const struct lu_env *env,
4649 struct dt_object *dt, const char *name,
4650 struct thandle *handle)
4652 struct osd_thandle *oh;
4653 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4655 LASSERT(!dt_object_remote(dt));
4656 LASSERT(handle != NULL);
4658 oh = container_of0(handle, struct osd_thandle, ot_super);
4659 LASSERT(oh->ot_handle == NULL);
4661 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
4662 osd_dto_credits_noquota[DTO_XATTR_SET]);
4664 * xattr del may involve inode quota change, reserve credits for
4665 * dquot_initialize()
4667 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4673 * Concurrency: @dt is write locked.
4675 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
4676 const char *name, struct thandle *handle)
4678 struct osd_object *obj = osd_dt_obj(dt);
4679 struct inode *inode = obj->oo_inode;
4680 struct osd_thread_info *info = osd_oti_get(env);
4681 struct dentry *dentry = &info->oti_obj_dentry;
4684 if (!dt_object_exists(dt))
4687 LASSERT(!dt_object_remote(dt));
4688 LASSERT(inode->i_op != NULL);
4689 LASSERT(handle != NULL);
4690 #ifdef HAVE_IOP_XATTR
4691 LASSERT(inode->i_op->removexattr != NULL);
4694 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4696 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
4697 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
4699 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
4700 &info->oti_ost_attrs);
4702 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
4704 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4705 lustre_lma_swab(lma);
4706 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4707 sizeof(*lma), XATTR_REPLACE);
4709 obj->oo_pfid_in_lma = 0;
4712 ll_vfs_dq_init(inode);
4713 dentry->d_inode = inode;
4714 dentry->d_sb = inode->i_sb;
4715 rc = osd_removexattr(dentry, inode, name);
4718 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4721 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4722 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4723 osd_oxc_del(obj, name);
4728 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
4729 __u64 start, __u64 end)
4731 struct osd_object *obj = osd_dt_obj(dt);
4732 struct inode *inode = obj->oo_inode;
4733 struct osd_thread_info *info = osd_oti_get(env);
4734 struct dentry *dentry = &info->oti_obj_dentry;
4735 struct file *file = &info->oti_file;
4740 dentry->d_inode = inode;
4741 dentry->d_sb = inode->i_sb;
4742 file->f_path.dentry = dentry;
4743 file->f_mapping = inode->i_mapping;
4744 file->f_op = inode->i_fop;
4745 set_file_inode(file, inode);
4747 rc = ll_vfs_fsync_range(file, start, end, 0);
4752 static int osd_invalidate(const struct lu_env *env, struct dt_object *dt)
4761 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
4762 const struct dt_index_features *feat)
4764 struct iam_descr *descr;
4766 if (osd_object_is_root(o))
4767 return feat == &dt_directory_features;
4769 LASSERT(o->oo_dir != NULL);
4771 descr = o->oo_dir->od_container.ic_descr;
4772 if (feat == &dt_directory_features) {
4773 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
4778 return feat->dif_keysize_min <= descr->id_key_size &&
4779 descr->id_key_size <= feat->dif_keysize_max &&
4780 feat->dif_recsize_min <= descr->id_rec_size &&
4781 descr->id_rec_size <= feat->dif_recsize_max &&
4782 !(feat->dif_flags & (DT_IND_VARKEY |
4783 DT_IND_VARREC | DT_IND_NONUNQ)) &&
4784 ergo(feat->dif_flags & DT_IND_UPDATE,
4785 1 /* XXX check that object (and fs) is writable */);
4789 static int osd_iam_container_init(const struct lu_env *env,
4790 struct osd_object *obj,
4791 struct osd_directory *dir)
4793 struct iam_container *bag = &dir->od_container;
4796 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
4800 result = iam_container_setup(bag);
4802 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
4804 iam_container_fini(bag);
4811 * Concurrency: no external locking is necessary.
4813 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
4814 const struct dt_index_features *feat)
4818 struct osd_object *obj = osd_dt_obj(dt);
4820 LINVRNT(osd_invariant(obj));
4822 if (osd_object_is_root(obj)) {
4823 dt->do_index_ops = &osd_index_ea_ops;
4825 } else if (feat == &dt_directory_features) {
4826 dt->do_index_ops = &osd_index_ea_ops;
4827 if (obj->oo_inode == NULL || S_ISDIR(obj->oo_inode->i_mode))
4832 } else if (unlikely(feat == &dt_otable_features)) {
4833 dt->do_index_ops = &osd_otable_ops;
4835 } else if (unlikely(feat == &dt_acct_features)) {
4836 dt->do_index_ops = &osd_acct_index_ops;
4839 } else if (!osd_has_index(obj)) {
4840 struct osd_directory *dir;
4841 struct osd_device *osd = osd_obj2dev(obj);
4842 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
4847 spin_lock(&obj->oo_guard);
4848 if (obj->oo_dir == NULL)
4852 * Concurrent thread allocated container data.
4855 spin_unlock(&obj->oo_guard);
4857 * Now, that we have container data, serialize its
4860 down_write(&obj->oo_ext_idx_sem);
4862 * recheck under lock.
4865 if (osd_has_index(obj)) {
4870 result = osd_iam_container_init(env, obj, obj->oo_dir);
4871 if (result || feat == &dt_lfsck_namespace_features ||
4872 feat == &dt_lfsck_layout_orphan_features ||
4873 feat == &dt_lfsck_layout_dangling_features)
4876 result = osd_index_register(osd, fid,
4877 feat->dif_keysize_max,
4878 feat->dif_recsize_max);
4880 CWARN("%s: failed to register index "
4882 osd_name(osd), PFID(fid), result);
4883 else if (result > 0)
4886 CDEBUG(D_LFSCK, "%s: index object "DFID
4887 " (%d/%d) registered\n",
4888 osd_name(osd), PFID(fid),
4889 (int)feat->dif_keysize_max,
4890 (int)feat->dif_recsize_max);
4893 up_write(&obj->oo_ext_idx_sem);
4901 if (result == 0 && skip_iam == 0) {
4902 if (!osd_iam_index_probe(env, obj, feat))
4905 LINVRNT(osd_invariant(obj));
4910 static int osd_otable_it_attr_get(const struct lu_env *env,
4911 struct dt_object *dt,
4912 struct lu_attr *attr)
4918 static const struct dt_object_operations osd_obj_ops = {
4919 .do_read_lock = osd_read_lock,
4920 .do_write_lock = osd_write_lock,
4921 .do_read_unlock = osd_read_unlock,
4922 .do_write_unlock = osd_write_unlock,
4923 .do_write_locked = osd_write_locked,
4924 .do_attr_get = osd_attr_get,
4925 .do_declare_attr_set = osd_declare_attr_set,
4926 .do_attr_set = osd_attr_set,
4927 .do_ah_init = osd_ah_init,
4928 .do_declare_create = osd_declare_create,
4929 .do_create = osd_create,
4930 .do_declare_destroy = osd_declare_destroy,
4931 .do_destroy = osd_destroy,
4932 .do_index_try = osd_index_try,
4933 .do_declare_ref_add = osd_declare_ref_add,
4934 .do_ref_add = osd_ref_add,
4935 .do_declare_ref_del = osd_declare_ref_del,
4936 .do_ref_del = osd_ref_del,
4937 .do_xattr_get = osd_xattr_get,
4938 .do_declare_xattr_set = osd_declare_xattr_set,
4939 .do_xattr_set = osd_xattr_set,
4940 .do_declare_xattr_del = osd_declare_xattr_del,
4941 .do_xattr_del = osd_xattr_del,
4942 .do_xattr_list = osd_xattr_list,
4943 .do_object_sync = osd_object_sync,
4944 .do_invalidate = osd_invalidate,
4947 static const struct dt_object_operations osd_obj_otable_it_ops = {
4948 .do_attr_get = osd_otable_it_attr_get,
4949 .do_index_try = osd_index_try,
4952 static int osd_index_declare_iam_delete(const struct lu_env *env,
4953 struct dt_object *dt,
4954 const struct dt_key *key,
4955 struct thandle *handle)
4957 struct osd_thandle *oh;
4959 oh = container_of0(handle, struct osd_thandle, ot_super);
4960 LASSERT(oh->ot_handle == NULL);
4962 /* Recycle may cause additional three blocks to be changed. */
4963 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
4964 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
4970 * delete a (key, value) pair from index \a dt specified by \a key
4972 * \param dt osd index object
4973 * \param key key for index
4974 * \param rec record reference
4975 * \param handle transaction handler
4978 * \retval -ve failure
4980 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
4981 const struct dt_key *key,
4982 struct thandle *handle)
4984 struct osd_thread_info *oti = osd_oti_get(env);
4985 struct osd_object *obj = osd_dt_obj(dt);
4986 struct osd_thandle *oh;
4987 struct iam_path_descr *ipd;
4988 struct iam_container *bag = &obj->oo_dir->od_container;
4993 if (!dt_object_exists(dt))
4996 LINVRNT(osd_invariant(obj));
4997 LASSERT(!dt_object_remote(dt));
4998 LASSERT(bag->ic_object == obj->oo_inode);
4999 LASSERT(handle != NULL);
5001 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
5003 ipd = osd_idx_ipd_get(env, bag);
5004 if (unlikely(ipd == NULL))
5007 oh = container_of0(handle, struct osd_thandle, ot_super);
5008 LASSERT(oh->ot_handle != NULL);
5009 LASSERT(oh->ot_handle->h_transaction != NULL);
5011 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5012 /* swab quota uid/gid provided by caller */
5013 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5014 key = (const struct dt_key *)&oti->oti_quota_id;
5017 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
5018 osd_ipd_put(env, bag, ipd);
5019 LINVRNT(osd_invariant(obj));
5020 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
5024 static int osd_index_declare_ea_delete(const struct lu_env *env,
5025 struct dt_object *dt,
5026 const struct dt_key *key,
5027 struct thandle *handle)
5029 struct osd_thandle *oh;
5030 struct inode *inode;
5035 LASSERT(!dt_object_remote(dt));
5036 LASSERT(handle != NULL);
5038 oh = container_of0(handle, struct osd_thandle, ot_super);
5039 LASSERT(oh->ot_handle == NULL);
5041 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE];
5042 osd_trans_declare_op(env, oh, OSD_OT_DELETE, credits);
5044 inode = osd_dt_obj(dt)->oo_inode;
5048 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
5049 i_projid_read(inode), 0, oh, osd_dt_obj(dt),
5054 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
5057 struct osd_fid_pack *rec;
5060 if (de->file_type & LDISKFS_DIRENT_LUFID) {
5061 rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
5062 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
5063 if (rc == 0 && unlikely(!fid_is_sane((struct lu_fid *)fid)))
5069 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
5070 const struct lu_fid *fid)
5072 struct seq_server_site *ss = osd_seq_site(osd);
5076 /* FID seqs not in FLDB, must be local seq */
5077 if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
5081 * If FLD is not being initialized yet, it only happens during the
5082 * initialization, likely during mgs initialization, and we assume
5083 * this is local FID.
5085 if (ss == NULL || ss->ss_server_fld == NULL)
5088 /* Only check the local FLDB here */
5089 if (osd_seq_exists(env, osd, fid_seq(fid)))
5095 static void osd_take_care_of_agent(const struct lu_env *env,
5096 struct osd_device *osd,
5097 struct osd_thandle *oh,
5098 struct ldiskfs_dir_entry_2 *de)
5100 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
5101 struct osd_idmap_cache *idc;
5102 int rc, schedule = 0;
5104 LASSERT(de != NULL);
5106 rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
5107 if (likely(rc == 0)) {
5108 idc = osd_idc_find_or_init(env, osd, fid);
5109 if (IS_ERR(idc) || idc->oic_remote)
5111 } else if (rc == -ENODATA) {
5113 * can't get FID, postpone to the end of the
5114 * transaction when iget() is safe
5118 CERROR("%s: can't get FID: rc = %d\n", osd_name(osd), rc);
5121 osd_schedule_agent_inode_removal(env, oh,
5122 le32_to_cpu(de->inode));
5126 * Index delete function for interoperability mode (b11826).
5127 * It will remove the directory entry added by osd_index_ea_insert().
5128 * This entry is needed to maintain name->fid mapping.
5130 * \param key, key i.e. file entry to be deleted
5132 * \retval 0, on success
5133 * \retval -ve, on error
5135 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
5136 const struct dt_key *key, struct thandle *handle)
5138 struct osd_object *obj = osd_dt_obj(dt);
5139 struct inode *dir = obj->oo_inode;
5140 struct dentry *dentry;
5141 struct osd_thandle *oh;
5142 struct ldiskfs_dir_entry_2 *de = NULL;
5143 struct buffer_head *bh;
5144 struct htree_lock *hlock = NULL;
5145 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5150 if (!dt_object_exists(dt))
5153 LINVRNT(osd_invariant(obj));
5154 LASSERT(!dt_object_remote(dt));
5155 LASSERT(handle != NULL);
5157 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
5159 oh = container_of(handle, struct osd_thandle, ot_super);
5160 LASSERT(oh->ot_handle != NULL);
5161 LASSERT(oh->ot_handle->h_transaction != NULL);
5163 ll_vfs_dq_init(dir);
5164 dentry = osd_child_dentry_get(env, obj,
5165 (char *)key, strlen((char *)key));
5167 if (obj->oo_hl_head != NULL) {
5168 hlock = osd_oti_get(env)->oti_hlock;
5169 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5170 dir, LDISKFS_HLOCK_DEL);
5172 down_write(&obj->oo_ext_idx_sem);
5175 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5178 * If this is not the ".." entry, it might be a remote DNE
5179 * entry and we need to check if the FID is for a remote
5180 * MDT. If the FID is not in the directory entry (e.g.
5181 * upgraded 1.8 filesystem without dirdata enabled) then
5182 * we need to get the FID from the LMA. For a remote directory
5183 * there HAS to be an LMA, it cannot be an IGIF inode in this
5186 * Delete the entry before the agent inode in order to
5187 * simplify error handling. At worst an error after deleting
5188 * the entry first might leak the agent inode afterward. The
5189 * reverse would need filesystem abort in case of error deleting
5190 * the entry after the agent had been removed, or leave a
5191 * dangling entry pointing at a random inode.
5193 if (strcmp((char *)key, dotdot) != 0)
5194 osd_take_care_of_agent(env, osd, oh, de);
5195 rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
5201 ldiskfs_htree_unlock(hlock);
5203 up_write(&obj->oo_ext_idx_sem);
5207 LASSERT(osd_invariant(obj));
5208 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
5213 * Lookup index for \a key and copy record to \a rec.
5215 * \param dt osd index object
5216 * \param key key for index
5217 * \param rec record reference
5219 * \retval +ve success : exact mach
5220 * \retval 0 return record with key not greater than \a key
5221 * \retval -ve failure
5223 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
5224 struct dt_rec *rec, const struct dt_key *key)
5226 struct osd_object *obj = osd_dt_obj(dt);
5227 struct iam_path_descr *ipd;
5228 struct iam_container *bag = &obj->oo_dir->od_container;
5229 struct osd_thread_info *oti = osd_oti_get(env);
5230 struct iam_iterator *it = &oti->oti_idx_it;
5231 struct iam_rec *iam_rec;
5236 if (!dt_object_exists(dt))
5239 LASSERT(osd_invariant(obj));
5240 LASSERT(!dt_object_remote(dt));
5241 LASSERT(bag->ic_object == obj->oo_inode);
5243 ipd = osd_idx_ipd_get(env, bag);
5247 /* got ipd now we can start iterator. */
5248 iam_it_init(it, bag, 0, ipd);
5250 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5251 /* swab quota uid/gid provided by caller */
5252 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5253 key = (const struct dt_key *)&oti->oti_quota_id;
5256 rc = iam_it_get(it, (struct iam_key *)key);
5258 if (S_ISDIR(obj->oo_inode->i_mode))
5259 iam_rec = (struct iam_rec *)oti->oti_ldp;
5261 iam_rec = (struct iam_rec *)rec;
5263 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
5265 if (S_ISDIR(obj->oo_inode->i_mode))
5266 osd_fid_unpack((struct lu_fid *)rec,
5267 (struct osd_fid_pack *)iam_rec);
5268 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
5269 osd_quota_unpack(obj, rec);
5274 osd_ipd_put(env, bag, ipd);
5276 LINVRNT(osd_invariant(obj));
5281 static int osd_index_declare_iam_insert(const struct lu_env *env,
5282 struct dt_object *dt,
5283 const struct dt_rec *rec,
5284 const struct dt_key *key,
5285 struct thandle *handle)
5287 struct osd_thandle *oh;
5289 LASSERT(handle != NULL);
5291 oh = container_of0(handle, struct osd_thandle, ot_super);
5292 LASSERT(oh->ot_handle == NULL);
5294 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
5295 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
5301 * Inserts (key, value) pair in \a dt index object.
5303 * \param dt osd index object
5304 * \param key key for index
5305 * \param rec record reference
5306 * \param th transaction handler
5309 * \retval -ve failure
5311 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
5312 const struct dt_rec *rec,
5313 const struct dt_key *key, struct thandle *th)
5315 struct osd_object *obj = osd_dt_obj(dt);
5316 struct iam_path_descr *ipd;
5317 struct osd_thandle *oh;
5318 struct iam_container *bag;
5319 struct osd_thread_info *oti = osd_oti_get(env);
5320 struct iam_rec *iam_rec;
5325 if (!dt_object_exists(dt))
5328 LINVRNT(osd_invariant(obj));
5329 LASSERT(!dt_object_remote(dt));
5331 bag = &obj->oo_dir->od_container;
5332 LASSERT(bag->ic_object == obj->oo_inode);
5333 LASSERT(th != NULL);
5335 osd_trans_exec_op(env, th, OSD_OT_INSERT);
5337 ipd = osd_idx_ipd_get(env, bag);
5338 if (unlikely(ipd == NULL))
5341 oh = container_of0(th, struct osd_thandle, ot_super);
5342 LASSERT(oh->ot_handle != NULL);
5343 LASSERT(oh->ot_handle->h_transaction != NULL);
5344 if (S_ISDIR(obj->oo_inode->i_mode)) {
5345 iam_rec = (struct iam_rec *)oti->oti_ldp;
5346 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec,
5348 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5349 /* pack quota uid/gid */
5350 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5351 key = (const struct dt_key *)&oti->oti_quota_id;
5352 /* pack quota record */
5353 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
5354 iam_rec = (struct iam_rec *)rec;
5356 iam_rec = (struct iam_rec *)rec;
5359 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
5361 osd_ipd_put(env, bag, ipd);
5362 LINVRNT(osd_invariant(obj));
5363 osd_trans_exec_check(env, th, OSD_OT_INSERT);
5368 * Calls ldiskfs_add_entry() to add directory entry
5369 * into the directory. This is required for
5370 * interoperability mode (b11826)
5372 * \retval 0, on success
5373 * \retval -ve, on error
5375 static int __osd_ea_add_rec(struct osd_thread_info *info,
5376 struct osd_object *pobj, struct inode *cinode,
5377 const char *name, const struct lu_fid *fid,
5378 struct htree_lock *hlock, struct thandle *th)
5380 struct ldiskfs_dentry_param *ldp;
5381 struct dentry *child;
5382 struct osd_thandle *oth;
5385 oth = container_of(th, struct osd_thandle, ot_super);
5386 LASSERT(oth->ot_handle != NULL);
5387 LASSERT(oth->ot_handle->h_transaction != NULL);
5388 LASSERT(pobj->oo_inode);
5390 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
5391 if (unlikely(pobj->oo_inode ==
5392 osd_sb(osd_obj2dev(pobj))->s_root->d_inode))
5395 osd_get_ldiskfs_dirent_param(ldp, fid);
5396 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
5397 child->d_fsdata = (void *)ldp;
5398 ll_vfs_dq_init(pobj->oo_inode);
5399 rc = osd_ldiskfs_add_entry(info, osd_obj2dev(pobj), oth->ot_handle,
5400 child, cinode, hlock);
5401 if (rc == 0 && OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_TYPE)) {
5402 struct ldiskfs_dir_entry_2 *de;
5403 struct buffer_head *bh;
5406 bh = osd_ldiskfs_find_entry(pobj->oo_inode, &child->d_name, &de,
5409 rc1 = ldiskfs_journal_get_write_access(oth->ot_handle,
5412 if (S_ISDIR(cinode->i_mode))
5413 de->file_type = LDISKFS_DIRENT_LUFID |
5414 LDISKFS_FT_REG_FILE;
5416 de->file_type = LDISKFS_DIRENT_LUFID |
5418 ldiskfs_handle_dirty_metadata(oth->ot_handle,
5429 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
5430 * into the directory.Also sets flags into osd object to
5431 * indicate dot and dotdot are created. This is required for
5432 * interoperability mode (b11826)
5434 * \param dir directory for dot and dotdot fixup.
5435 * \param obj child object for linking
5437 * \retval 0, on success
5438 * \retval -ve, on error
5440 static int osd_add_dot_dotdot(struct osd_thread_info *info,
5441 struct osd_object *dir,
5442 struct inode *parent_dir, const char *name,
5443 const struct lu_fid *dot_fid,
5444 const struct lu_fid *dot_dot_fid,
5447 struct inode *inode = dir->oo_inode;
5448 struct osd_thandle *oth;
5451 oth = container_of(th, struct osd_thandle, ot_super);
5452 LASSERT(oth->ot_handle->h_transaction != NULL);
5453 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
5455 if (strcmp(name, dot) == 0) {
5456 if (dir->oo_compat_dot_created) {
5459 LASSERT(inode->i_ino == parent_dir->i_ino);
5460 dir->oo_compat_dot_created = 1;
5463 } else if (strcmp(name, dotdot) == 0) {
5464 if (!dir->oo_compat_dot_created)
5466 /* in case of rename, dotdot is already created */
5467 if (dir->oo_compat_dotdot_created) {
5468 return __osd_ea_add_rec(info, dir, parent_dir, name,
5469 dot_dot_fid, NULL, th);
5472 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_PARENT)) {
5473 struct lu_fid tfid = *dot_dot_fid;
5476 result = osd_add_dot_dotdot_internal(info,
5477 dir->oo_inode, parent_dir, dot_fid,
5480 result = osd_add_dot_dotdot_internal(info,
5481 dir->oo_inode, parent_dir, dot_fid,
5486 dir->oo_compat_dotdot_created = 1;
5494 * It will call the appropriate osd_add* function and return the
5495 * value, return by respective functions.
5497 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
5498 struct inode *cinode, const char *name,
5499 const struct lu_fid *fid, struct thandle *th)
5501 struct osd_thread_info *info = osd_oti_get(env);
5502 struct htree_lock *hlock;
5505 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
5507 if (name[0] == '.' && (name[1] == '\0' ||
5508 (name[1] == '.' && name[2] == '\0'))) {
5509 if (hlock != NULL) {
5510 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5513 down_write(&pobj->oo_ext_idx_sem);
5516 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
5517 lu_object_fid(&pobj->oo_dt.do_lu),
5520 if (hlock != NULL) {
5521 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5522 pobj->oo_inode, LDISKFS_HLOCK_ADD);
5524 down_write(&pobj->oo_ext_idx_sem);
5527 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
5528 struct lu_fid *tfid = &info->oti_fid;
5532 rc = __osd_ea_add_rec(info, pobj, cinode, name,
5535 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
5540 ldiskfs_htree_unlock(hlock);
5542 up_write(&pobj->oo_ext_idx_sem);
5548 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
5549 struct osd_idmap_cache *oic)
5551 struct lustre_scrub *scrub = &dev->od_scrub.os_scrub;
5552 struct lu_fid *fid = &oic->oic_fid;
5553 struct osd_inode_id *id = &oic->oic_lid;
5554 struct inode *inode = NULL;
5561 if (!fid_is_norm(fid) && !fid_is_igif(fid))
5564 if (thread_is_running(&scrub->os_thread) &&
5565 scrub->os_pos_current > id->oii_ino)
5568 if (dev->od_auto_scrub_interval == AS_NEVER ||
5569 ktime_get_real_seconds() <
5570 scrub->os_file.sf_time_last_complete + dev->od_auto_scrub_interval)
5574 rc = osd_oi_lookup(oti, dev, fid, &oti->oti_id, 0);
5575 if (rc == -ENOENT) {
5576 __u32 gen = id->oii_gen;
5582 inode = osd_iget(oti, dev, id);
5583 /* The inode has been removed (by race maybe). */
5584 if (IS_ERR(inode)) {
5585 rc = PTR_ERR(inode);
5587 RETURN(rc == -ESTALE ? -ENOENT : rc);
5590 /* The OI mapping is lost. */
5591 if (gen != OSD_OII_NOGEN)
5595 * The inode may has been reused by others, we do not know,
5596 * leave it to be handled by subsequent osd_fid_lookup().
5599 } else if (rc || osd_id_eq(id, &oti->oti_id)) {
5606 if (thread_is_running(&scrub->os_thread)) {
5607 if (inode == NULL) {
5608 inode = osd_iget(oti, dev, id);
5609 /* The inode has been removed (by race maybe). */
5610 if (IS_ERR(inode)) {
5611 rc = PTR_ERR(inode);
5613 RETURN(rc == -ESTALE ? -ENOENT : rc);
5617 rc = osd_oii_insert(dev, oic, insert);
5619 * There is race condition between osd_oi_lookup and OI scrub.
5620 * The OI scrub finished just after osd_oi_lookup() failure.
5621 * Under such case, it is unnecessary to trigger OI scrub again,
5622 * but try to call osd_oi_lookup() again.
5624 if (unlikely(rc == -EAGAIN))
5627 if (!S_ISDIR(inode->i_mode))
5630 rc = osd_check_lmv(oti, dev, inode, oic);
5635 if (dev->od_auto_scrub_interval != AS_NEVER && ++once == 1) {
5636 rc = osd_scrub_start(oti->oti_env, dev, SS_AUTO_PARTIAL |
5637 SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT);
5638 CDEBUG(D_LFSCK | D_CONSOLE | D_WARNING,
5639 "%s: trigger partial OI scrub for RPC inconsistency "
5640 "checking FID "DFID": rc = %d\n",
5641 osd_dev2name(dev), PFID(fid), rc);
5642 if (rc == 0 || rc == -EALREADY)
5655 static int osd_fail_fid_lookup(struct osd_thread_info *oti,
5656 struct osd_device *dev,
5657 struct osd_idmap_cache *oic,
5658 struct lu_fid *fid, __u32 ino)
5660 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
5661 struct inode *inode;
5664 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
5665 inode = osd_iget(oti, dev, &oic->oic_lid);
5666 if (IS_ERR(inode)) {
5667 fid_zero(&oic->oic_fid);
5668 return PTR_ERR(inode);
5671 rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, loa);
5674 fid_zero(&oic->oic_fid);
5676 *fid = oic->oic_fid = loa->loa_lma.lma_self_fid;
5680 void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
5681 struct osd_inode_id *id, const struct lu_fid *fid)
5683 CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
5684 id->oii_ino, id->oii_gen, info);
5685 info->oti_cache.oic_lid = *id;
5686 info->oti_cache.oic_fid = *fid;
5687 info->oti_cache.oic_dev = osd;
5691 * Get parent FID from the linkEA.
5693 * For a directory which parent resides on remote MDT, to satisfy the
5694 * local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
5695 * the other hand, to make the lookup(..) on the directory can return
5696 * the real parent FID, we append the real parent FID after its ".."
5697 * name entry in the /REMOTE_PARENT_DIR.
5699 * Unfortunately, such PFID-in-dirent cannot be preserved via file-level
5700 * backup. So after the restore, we cannot get the right parent FID from
5701 * its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
5702 * we have stored the real parent FID in the directory object's linkEA,
5703 * we can parse the linkEA for the real parent FID.
5705 * \param[in] env pointer to the thread context
5706 * \param[in] obj pointer to the object to be handled
5707 * \param[out]fid pointer to the buffer to hold the parent FID
5709 * \retval 0 for getting the real parent FID successfully
5710 * \retval negative error number on failure
5712 static int osd_get_pfid_from_linkea(const struct lu_env *env,
5713 struct osd_object *obj,
5716 struct osd_thread_info *oti = osd_oti_get(env);
5717 struct lu_buf *buf = &oti->oti_big_buf;
5718 struct dentry *dentry = &oti->oti_obj_dentry;
5719 struct inode *inode = obj->oo_inode;
5720 struct linkea_data ldata = { NULL };
5726 if (!S_ISDIR(inode->i_mode))
5730 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5731 buf->lb_buf, buf->lb_len);
5732 if (rc == -ERANGE) {
5733 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5736 lu_buf_realloc(buf, rc);
5737 if (buf->lb_buf == NULL)
5744 if (unlikely(rc == 0))
5750 if (unlikely(buf->lb_buf == NULL)) {
5751 lu_buf_realloc(buf, rc);
5752 if (buf->lb_buf == NULL)
5759 rc = linkea_init_with_rec(&ldata);
5761 linkea_first_entry(&ldata);
5762 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
5768 static int osd_verify_ent_by_linkea(const struct lu_env *env,
5769 struct inode *inode,
5770 const struct lu_fid *pfid,
5771 const char *name, const int namelen)
5773 struct osd_thread_info *oti = osd_oti_get(env);
5774 struct lu_buf *buf = &oti->oti_big_buf;
5775 struct dentry *dentry = &oti->oti_obj_dentry;
5776 struct linkea_data ldata = { NULL };
5777 struct lu_name cname = { .ln_name = name,
5778 .ln_namelen = namelen };
5784 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5785 buf->lb_buf, buf->lb_len);
5787 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK, NULL, 0);
5792 if (unlikely(rc == 0))
5795 if (buf->lb_len < rc) {
5796 lu_buf_realloc(buf, rc);
5797 if (buf->lb_buf == NULL)
5804 rc = linkea_init_with_rec(&ldata);
5806 rc = linkea_links_find(&ldata, &cname, pfid);
5812 * Calls ->lookup() to find dentry. From dentry get inode and
5813 * read inode's ea to get fid. This is required for interoperability
5816 * \retval 0, on success
5817 * \retval -ve, on error
5819 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
5820 struct dt_rec *rec, const struct dt_key *key)
5822 struct inode *dir = obj->oo_inode;
5823 struct dentry *dentry;
5824 struct ldiskfs_dir_entry_2 *de;
5825 struct buffer_head *bh;
5826 struct lu_fid *fid = (struct lu_fid *)rec;
5827 struct htree_lock *hlock = NULL;
5833 LASSERT(dir->i_op != NULL);
5834 LASSERT(dir->i_op->lookup != NULL);
5836 dentry = osd_child_dentry_get(env, obj,
5837 (char *)key, strlen((char *)key));
5839 if (obj->oo_hl_head != NULL) {
5840 hlock = osd_oti_get(env)->oti_hlock;
5841 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5842 dir, LDISKFS_HLOCK_LOOKUP);
5844 down_read(&obj->oo_ext_idx_sem);
5847 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5849 struct osd_thread_info *oti = osd_oti_get(env);
5850 struct osd_inode_id *id = &oti->oti_id;
5851 struct osd_idmap_cache *oic = &oti->oti_cache;
5852 struct osd_device *dev = osd_obj2dev(obj);
5854 ino = le32_to_cpu(de->inode);
5855 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
5857 rc = osd_fail_fid_lookup(oti, dev, oic, fid, ino);
5861 rc = osd_get_fid_from_dentry(de, rec);
5863 /* done with de, release bh */
5866 if (unlikely(is_remote_parent_ino(dev, ino))) {
5867 const char *name = (const char *)key;
5870 * If the parent is on remote MDT, and there
5871 * is no FID-in-dirent, then we have to get
5872 * the parent FID from the linkEA.
5874 if (likely(strlen(name) == 2 &&
5875 name[0] == '.' && name[1] == '.'))
5876 rc = osd_get_pfid_from_linkea(env, obj,
5879 rc = osd_ea_fid_get(env, obj, ino, fid, id);
5882 osd_id_gen(id, ino, OSD_OII_NOGEN);
5885 if (rc != 0 || osd_remote_fid(env, dev, fid)) {
5886 fid_zero(&oic->oic_fid);
5891 osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id, fid);
5892 rc = osd_consistency_check(oti, dev, oic);
5894 fid_zero(&oic->oic_fid);
5896 /* Other error should not affect lookup result. */
5906 ldiskfs_htree_unlock(hlock);
5908 up_read(&obj->oo_ext_idx_sem);
5912 static int osd_index_declare_ea_insert(const struct lu_env *env,
5913 struct dt_object *dt,
5914 const struct dt_rec *rec,
5915 const struct dt_key *key,
5916 struct thandle *handle)
5918 struct osd_thandle *oh;
5919 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5920 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
5921 const struct lu_fid *fid = rec1->rec_fid;
5922 int credits, rc = 0;
5923 struct osd_idmap_cache *idc;
5927 LASSERT(!dt_object_remote(dt));
5928 LASSERT(handle != NULL);
5929 LASSERT(fid != NULL);
5930 LASSERT(rec1->rec_type != 0);
5932 oh = container_of0(handle, struct osd_thandle, ot_super);
5933 LASSERT(oh->ot_handle == NULL);
5935 credits = osd_dto_credits_noquota[DTO_INDEX_INSERT];
5938 * we can't call iget() while a transactions is running
5939 * (this can lead to a deadlock), but we need to know
5940 * inum and object type. so we find this information at
5941 * declaration and cache in per-thread info
5943 idc = osd_idc_find_or_init(env, osd, fid);
5945 RETURN(PTR_ERR(idc));
5946 if (idc->oic_remote) {
5948 * a reference to remote inode is represented by an
5949 * agent inode which we have to create
5951 credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
5952 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
5955 osd_trans_declare_op(env, oh, OSD_OT_INSERT, credits);
5957 if (osd_dt_obj(dt)->oo_inode != NULL) {
5958 struct inode *inode = osd_dt_obj(dt)->oo_inode;
5961 * We ignore block quota on meta pool (MDTs), so needn't
5962 * calculate how many blocks will be consumed by this index
5965 rc = osd_declare_inode_qid(env, i_uid_read(inode),
5967 i_projid_read(inode), 0,
5968 oh, osd_dt_obj(dt), NULL,
5973 #ifdef HAVE_PROJECT_QUOTA
5975 * Reserve credits for local agent inode to transfer
5976 * to 0, quota enforcement is ignored in this case.
5978 if (idc->oic_remote &&
5979 LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
5980 i_projid_read(inode) != 0)
5981 rc = osd_declare_attr_qid(env, osd_dt_obj(dt), oh,
5982 0, i_projid_read(inode),
5983 0, false, PRJQUOTA, true);
5991 * Index add function for interoperability mode (b11826).
5992 * It will add the directory entry.This entry is needed to
5993 * maintain name->fid mapping.
5995 * \param key it is key i.e. file entry to be inserted
5996 * \param rec it is value of given key i.e. fid
5998 * \retval 0, on success
5999 * \retval -ve, on error
6001 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
6002 const struct dt_rec *rec,
6003 const struct dt_key *key, struct thandle *th)
6005 struct osd_object *obj = osd_dt_obj(dt);
6006 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
6007 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
6008 const struct lu_fid *fid = rec1->rec_fid;
6009 const char *name = (const char *)key;
6010 struct osd_thread_info *oti = osd_oti_get(env);
6011 struct inode *child_inode = NULL;
6012 struct osd_idmap_cache *idc;
6017 if (!dt_object_exists(dt))
6020 LASSERT(osd_invariant(obj));
6021 LASSERT(!dt_object_remote(dt));
6022 LASSERT(th != NULL);
6024 osd_trans_exec_op(env, th, OSD_OT_INSERT);
6026 LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
6028 idc = osd_idc_find(env, osd, fid);
6029 if (unlikely(idc == NULL)) {
6030 idc = osd_idc_find_or_init(env, osd, fid);
6033 * this dt_insert() wasn't declared properly, so
6034 * FID is missing in OI cache. we better do not
6035 * lookup FID in FLDB/OI and don't risk to deadlock,
6036 * but in some special cases (lfsck testing, etc)
6037 * it's much simpler than fixing a caller.
6039 * normally this error should be placed after the first
6040 * find, but migrate may attach source stripes to
6041 * target, which doesn't create stripes.
6043 CERROR("%s: "DFID" wasn't declared for insert\n",
6044 osd_name(osd), PFID(fid));
6046 RETURN(PTR_ERR(idc));
6050 if (idc->oic_remote) {
6051 /* Insert remote entry */
6052 if (strcmp(name, dotdot) == 0 && strlen(name) == 2) {
6054 igrab(osd->od_mdt_map->omm_remote_parent->d_inode);
6056 child_inode = osd_create_local_agent_inode(env, osd,
6057 obj, fid, rec1->rec_type & S_IFMT, th);
6058 if (IS_ERR(child_inode))
6059 RETURN(PTR_ERR(child_inode));
6062 /* Insert local entry */
6063 if (unlikely(idc->oic_lid.oii_ino == 0)) {
6064 /* for a reason OI cache wasn't filled properly */
6065 CERROR("%s: OIC for "DFID" isn't filled\n",
6066 osd_name(osd), PFID(fid));
6069 child_inode = oti->oti_inode;
6070 if (unlikely(child_inode == NULL)) {
6071 struct ldiskfs_inode_info *lii;
6076 child_inode = oti->oti_inode = &lii->vfs_inode;
6078 child_inode->i_sb = osd_sb(osd);
6079 child_inode->i_ino = idc->oic_lid.oii_ino;
6080 child_inode->i_mode = rec1->rec_type & S_IFMT;
6083 rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
6085 CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
6086 obj->oo_inode->i_ino, name, child_inode->i_ino, rc);
6088 if (child_inode && child_inode != oti->oti_inode)
6090 LASSERT(osd_invariant(obj));
6091 osd_trans_exec_check(env, th, OSD_OT_INSERT);
6096 * Initialize osd Iterator for given osd index object.
6098 * \param dt osd index object
6101 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
6102 struct dt_object *dt,
6105 struct osd_it_iam *it;
6106 struct osd_object *obj = osd_dt_obj(dt);
6107 struct lu_object *lo = &dt->do_lu;
6108 struct iam_path_descr *ipd;
6109 struct iam_container *bag = &obj->oo_dir->od_container;
6111 if (!dt_object_exists(dt))
6112 return ERR_PTR(-ENOENT);
6116 return ERR_PTR(-ENOMEM);
6118 ipd = osd_it_ipd_get(env, bag);
6119 if (likely(ipd != NULL)) {
6123 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
6124 return (struct dt_it *)it;
6127 return ERR_PTR(-ENOMEM);
6132 * free given Iterator.
6134 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
6136 struct osd_it_iam *it = (struct osd_it_iam *)di;
6137 struct osd_object *obj = it->oi_obj;
6139 iam_it_fini(&it->oi_it);
6140 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
6141 osd_object_put(env, obj);
6146 * Move Iterator to record specified by \a key
6148 * \param di osd iterator
6149 * \param key key for index
6151 * \retval +ve di points to record with least key not larger than key
6152 * \retval 0 di points to exact matched key
6153 * \retval -ve failure
6156 static int osd_it_iam_get(const struct lu_env *env,
6157 struct dt_it *di, const struct dt_key *key)
6159 struct osd_thread_info *oti = osd_oti_get(env);
6160 struct osd_it_iam *it = (struct osd_it_iam *)di;
6162 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
6163 /* swab quota uid/gid */
6164 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
6165 key = (struct dt_key *)&oti->oti_quota_id;
6168 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
6174 * \param di osd iterator
6176 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
6178 struct osd_it_iam *it = (struct osd_it_iam *)di;
6180 iam_it_put(&it->oi_it);
6184 * Move iterator by one record
6186 * \param di osd iterator
6188 * \retval +1 end of container reached
6190 * \retval -ve failure
6193 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
6195 struct osd_it_iam *it = (struct osd_it_iam *)di;
6197 return iam_it_next(&it->oi_it);
6201 * Return pointer to the key under iterator.
6204 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
6205 const struct dt_it *di)
6207 struct osd_thread_info *oti = osd_oti_get(env);
6208 struct osd_it_iam *it = (struct osd_it_iam *)di;
6209 struct osd_object *obj = it->oi_obj;
6212 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
6214 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
6215 /* swab quota uid/gid */
6216 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
6217 key = (struct dt_key *)&oti->oti_quota_id;
6224 * Return size of key under iterator (in bytes)
6227 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
6229 struct osd_it_iam *it = (struct osd_it_iam *)di;
6231 return iam_it_key_size(&it->oi_it);
6235 osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
6237 /* check if file type is required */
6238 if (ent->lde_attrs & LUDA_TYPE) {
6239 struct luda_type *lt;
6240 int align = sizeof(*lt) - 1;
6242 len = (len + align) & ~align;
6243 lt = (struct luda_type *)(ent->lde_name + len);
6244 lt->lt_type = cpu_to_le16(DTTOIF(type));
6247 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
6251 * build lu direct from backend fs dirent.
6255 osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
6256 char *name, __u16 namelen, __u16 type, __u32 attr)
6258 ent->lde_attrs = attr | LUDA_FID;
6259 fid_cpu_to_le(&ent->lde_fid, fid);
6261 ent->lde_hash = cpu_to_le64(offset);
6262 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
6264 strncpy(ent->lde_name, name, namelen);
6265 ent->lde_name[namelen] = '\0';
6266 ent->lde_namelen = cpu_to_le16(namelen);
6268 /* append lustre attributes */
6269 osd_it_append_attrs(ent, namelen, type);
6273 * Return pointer to the record under iterator.
6275 static int osd_it_iam_rec(const struct lu_env *env,
6276 const struct dt_it *di,
6277 struct dt_rec *dtrec, __u32 attr)
6279 struct osd_it_iam *it = (struct osd_it_iam *)di;
6280 struct osd_thread_info *info = osd_oti_get(env);
6284 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
6285 const struct osd_fid_pack *rec;
6286 struct lu_fid *fid = &info->oti_fid;
6287 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
6293 name = (char *)iam_it_key_get(&it->oi_it);
6295 RETURN(PTR_ERR(name));
6297 namelen = iam_it_key_size(&it->oi_it);
6299 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
6301 RETURN(PTR_ERR(rec));
6303 rc = osd_fid_unpack(fid, rec);
6307 hash = iam_it_store(&it->oi_it);
6309 /* IAM does not store object type in IAM index (dir) */
6310 osd_it_pack_dirent(lde, fid, hash, name, namelen,
6312 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
6313 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
6314 (struct iam_rec *)dtrec);
6315 osd_quota_unpack(it->oi_obj, dtrec);
6317 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
6318 (struct iam_rec *)dtrec);
6325 * Returns cookie for current Iterator position.
6327 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
6329 struct osd_it_iam *it = (struct osd_it_iam *)di;
6331 return iam_it_store(&it->oi_it);
6335 * Restore iterator from cookie.
6337 * \param di osd iterator
6338 * \param hash Iterator location cookie
6340 * \retval +ve di points to record with least key not larger than key.
6341 * \retval 0 di points to exact matched key
6342 * \retval -ve failure
6345 static int osd_it_iam_load(const struct lu_env *env,
6346 const struct dt_it *di, __u64 hash)
6348 struct osd_it_iam *it = (struct osd_it_iam *)di;
6350 return iam_it_load(&it->oi_it, hash);
6353 static const struct dt_index_operations osd_index_iam_ops = {
6354 .dio_lookup = osd_index_iam_lookup,
6355 .dio_declare_insert = osd_index_declare_iam_insert,
6356 .dio_insert = osd_index_iam_insert,
6357 .dio_declare_delete = osd_index_declare_iam_delete,
6358 .dio_delete = osd_index_iam_delete,
6360 .init = osd_it_iam_init,
6361 .fini = osd_it_iam_fini,
6362 .get = osd_it_iam_get,
6363 .put = osd_it_iam_put,
6364 .next = osd_it_iam_next,
6365 .key = osd_it_iam_key,
6366 .key_size = osd_it_iam_key_size,
6367 .rec = osd_it_iam_rec,
6368 .store = osd_it_iam_store,
6369 .load = osd_it_iam_load
6375 * Creates or initializes iterator context.
6377 * \retval struct osd_it_ea, iterator structure on success
6380 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
6381 struct dt_object *dt,
6384 struct osd_object *obj = osd_dt_obj(dt);
6385 struct osd_thread_info *info = osd_oti_get(env);
6386 struct osd_it_ea *oie;
6388 struct lu_object *lo = &dt->do_lu;
6389 struct dentry *obj_dentry;
6393 if (!dt_object_exists(dt) || obj->oo_destroyed)
6394 RETURN(ERR_PTR(-ENOENT));
6396 OBD_SLAB_ALLOC_PTR_GFP(oie, osd_itea_cachep, GFP_NOFS);
6398 RETURN(ERR_PTR(-ENOMEM));
6399 obj_dentry = &oie->oie_dentry;
6401 obj_dentry->d_inode = obj->oo_inode;
6402 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
6403 obj_dentry->d_name.hash = 0;
6405 oie->oie_rd_dirent = 0;
6406 oie->oie_it_dirent = 0;
6407 oie->oie_dirent = NULL;
6408 if (unlikely(!info->oti_it_ea_buf_used)) {
6409 oie->oie_buf = info->oti_it_ea_buf;
6410 info->oti_it_ea_buf_used = 1;
6412 OBD_ALLOC(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6413 if (oie->oie_buf == NULL)
6414 RETURN(ERR_PTR(-ENOMEM));
6418 file = &oie->oie_file;
6420 /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
6421 if (attr & LUDA_64BITHASH)
6422 file->f_mode = FMODE_64BITHASH;
6424 file->f_mode = FMODE_32BITHASH;
6425 file->f_path.dentry = obj_dentry;
6426 file->f_mapping = obj->oo_inode->i_mapping;
6427 file->f_op = obj->oo_inode->i_fop;
6428 set_file_inode(file, obj->oo_inode);
6431 RETURN((struct dt_it *)oie);
6435 * Destroy or finishes iterator context.
6437 * \param di iterator structure to be destroyed
6439 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
6441 struct osd_thread_info *info = osd_oti_get(env);
6442 struct osd_it_ea *oie = (struct osd_it_ea *)di;
6443 struct osd_object *obj = oie->oie_obj;
6444 struct inode *inode = obj->oo_inode;
6447 oie->oie_file.f_op->release(inode, &oie->oie_file);
6448 osd_object_put(env, obj);
6449 if (unlikely(oie->oie_buf != info->oti_it_ea_buf))
6450 OBD_FREE(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6452 info->oti_it_ea_buf_used = 0;
6453 OBD_SLAB_FREE_PTR(oie, osd_itea_cachep);
6458 * It position the iterator at given key, so that next lookup continues from
6459 * that key Or it is similar to dio_it->load() but based on a key,
6460 * rather than file position.
6462 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
6465 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
6467 static int osd_it_ea_get(const struct lu_env *env,
6468 struct dt_it *di, const struct dt_key *key)
6470 struct osd_it_ea *it = (struct osd_it_ea *)di;
6473 LASSERT(((const char *)key)[0] == '\0');
6474 it->oie_file.f_pos = 0;
6475 it->oie_rd_dirent = 0;
6476 it->oie_it_dirent = 0;
6477 it->oie_dirent = NULL;
6485 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
6489 struct osd_filldir_cbs {
6490 #ifdef HAVE_DIR_CONTEXT
6491 struct dir_context ctx;
6493 struct osd_it_ea *it;
6496 * It is called internally by ->readdir(). It fills the
6497 * iterator's in-memory data structure with required
6498 * information i.e. name, namelen, rec_size etc.
6500 * \param buf in which information to be filled in.
6501 * \param name name of the file in given dir
6503 * \retval 0 on success
6504 * \retval 1 on buffer full
6506 #ifdef HAVE_FILLDIR_USE_CTX
6507 static int osd_ldiskfs_filldir(struct dir_context *buf,
6509 static int osd_ldiskfs_filldir(void *buf,
6511 const char *name, int namelen,
6512 loff_t offset, __u64 ino, unsigned int d_type)
6514 struct osd_it_ea *it = ((struct osd_filldir_cbs *)buf)->it;
6515 struct osd_object *obj = it->oie_obj;
6516 struct osd_it_ea_dirent *ent = it->oie_dirent;
6517 struct lu_fid *fid = &ent->oied_fid;
6518 struct osd_fid_pack *rec;
6522 /* this should never happen */
6523 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
6524 CERROR("ldiskfs return invalid namelen %d\n", namelen);
6528 if ((void *)ent - it->oie_buf + sizeof(*ent) + namelen >
6532 /* "." is just the object itself. */
6533 if (namelen == 1 && name[0] == '.') {
6534 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6535 } else if (d_type & LDISKFS_DIRENT_LUFID) {
6536 rec = (struct osd_fid_pack *)(name + namelen + 1);
6537 if (osd_fid_unpack(fid, rec) != 0)
6542 d_type &= ~LDISKFS_DIRENT_LUFID;
6544 /* NOT export local root. */
6545 if (unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
6546 ino = obj->oo_inode->i_ino;
6547 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6550 ent->oied_ino = ino;
6551 ent->oied_off = offset;
6552 ent->oied_namelen = namelen;
6553 ent->oied_type = d_type;
6555 memcpy(ent->oied_name, name, namelen);
6557 it->oie_rd_dirent++;
6558 it->oie_dirent = (void *)ent + cfs_size_round(sizeof(*ent) + namelen);
6563 * Calls ->readdir() to load a directory entry at a time
6564 * and stored it in iterator's in-memory data structure.
6566 * \param di iterator's in memory structure
6568 * \retval 0 on success
6569 * \retval -ve on error
6570 * \retval +1 reach the end of entry
6572 static int osd_ldiskfs_it_fill(const struct lu_env *env,
6573 const struct dt_it *di)
6575 struct osd_it_ea *it = (struct osd_it_ea *)di;
6576 struct osd_object *obj = it->oie_obj;
6577 struct inode *inode = obj->oo_inode;
6578 struct htree_lock *hlock = NULL;
6579 struct file *filp = &it->oie_file;
6581 struct osd_filldir_cbs buf = {
6582 #ifdef HAVE_DIR_CONTEXT
6583 .ctx.actor = osd_ldiskfs_filldir,
6589 it->oie_dirent = it->oie_buf;
6590 it->oie_rd_dirent = 0;
6592 if (obj->oo_hl_head != NULL) {
6593 hlock = osd_oti_get(env)->oti_hlock;
6594 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
6595 inode, LDISKFS_HLOCK_READDIR);
6597 down_read(&obj->oo_ext_idx_sem);
6600 #ifdef HAVE_DIR_CONTEXT
6601 buf.ctx.pos = filp->f_pos;
6602 #ifdef HAVE_ITERATE_SHARED
6603 rc = inode->i_fop->iterate_shared(filp, &buf.ctx);
6605 rc = inode->i_fop->iterate(filp, &buf.ctx);
6607 filp->f_pos = buf.ctx.pos;
6609 rc = inode->i_fop->readdir(filp, &buf, osd_ldiskfs_filldir);
6613 ldiskfs_htree_unlock(hlock);
6615 up_read(&obj->oo_ext_idx_sem);
6617 if (it->oie_rd_dirent == 0) {
6619 * If it does not get any dirent, it means it has been reached
6620 * to the end of the dir
6622 it->oie_file.f_pos = ldiskfs_get_htree_eof(&it->oie_file);
6626 it->oie_dirent = it->oie_buf;
6627 it->oie_it_dirent = 1;
6634 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
6635 * to load a directory entry at a time and stored it in
6636 * iterator's in-memory data structure.
6638 * \param di iterator's in memory structure
6640 * \retval +ve iterator reached to end
6641 * \retval 0 iterator not reached to end
6642 * \retval -ve on error
6644 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
6646 struct osd_it_ea *it = (struct osd_it_ea *)di;
6651 if (it->oie_it_dirent < it->oie_rd_dirent) {
6653 (void *)it->oie_dirent +
6654 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
6655 it->oie_dirent->oied_namelen);
6656 it->oie_it_dirent++;
6659 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
6662 rc = osd_ldiskfs_it_fill(env, di);
6669 * Returns the key at current position from iterator's in memory structure.
6671 * \param di iterator's in memory structure
6673 * \retval key i.e. struct dt_key on success
6675 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
6676 const struct dt_it *di)
6678 struct osd_it_ea *it = (struct osd_it_ea *)di;
6680 return (struct dt_key *)it->oie_dirent->oied_name;
6684 * Returns key's size at current position from iterator's in memory structure.
6686 * \param di iterator's in memory structure
6688 * \retval key_size i.e. struct dt_key on success
6690 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
6692 struct osd_it_ea *it = (struct osd_it_ea *)di;
6694 return it->oie_dirent->oied_namelen;
6697 static inline bool osd_dotdot_has_space(struct ldiskfs_dir_entry_2 *de)
6699 if (LDISKFS_DIR_REC_LEN(de) >=
6700 __LDISKFS_DIR_REC_LEN(2 + 1 + sizeof(struct osd_fid_pack)))
6707 osd_dirent_has_space(struct ldiskfs_dir_entry_2 *de, __u16 namelen,
6708 unsigned int blocksize, bool dotdot)
6711 return osd_dotdot_has_space(de);
6713 if (ldiskfs_rec_len_from_disk(de->rec_len, blocksize) >=
6714 __LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
6721 osd_dirent_reinsert(const struct lu_env *env, struct osd_device *dev,
6722 handle_t *jh, struct dentry *dentry,
6723 const struct lu_fid *fid, struct buffer_head *bh,
6724 struct ldiskfs_dir_entry_2 *de, struct htree_lock *hlock,
6727 struct inode *dir = dentry->d_parent->d_inode;
6728 struct inode *inode = dentry->d_inode;
6729 struct osd_fid_pack *rec;
6730 struct ldiskfs_dentry_param *ldp;
6731 int namelen = dentry->d_name.len;
6733 struct osd_thread_info *info = osd_oti_get(env);
6737 if (!ldiskfs_has_feature_dirdata(inode->i_sb))
6740 /* There is enough space to hold the FID-in-dirent. */
6741 if (osd_dirent_has_space(de, namelen, dir->i_sb->s_blocksize, dotdot)) {
6742 rc = ldiskfs_journal_get_write_access(jh, bh);
6746 de->name[namelen] = 0;
6747 rec = (struct osd_fid_pack *)(de->name + namelen + 1);
6748 rec->fp_len = sizeof(struct lu_fid) + 1;
6749 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
6750 de->file_type |= LDISKFS_DIRENT_LUFID;
6751 rc = ldiskfs_handle_dirty_metadata(jh, NULL, bh);
6758 rc = ldiskfs_delete_entry(jh, dir, de, bh);
6762 ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
6763 osd_get_ldiskfs_dirent_param(ldp, fid);
6764 dentry->d_fsdata = (void *)ldp;
6765 ll_vfs_dq_init(dir);
6766 rc = osd_ldiskfs_add_entry(info, dev, jh, dentry, inode, hlock);
6768 * It is too bad, we cannot reinsert the name entry back.
6769 * That means we lose it!
6772 CDEBUG(D_LFSCK, "%s: fail to reinsert the dirent, "
6773 "dir = %lu/%u, name = %.*s, "DFID": rc = %d\n",
6774 osd_ino2name(inode),
6775 dir->i_ino, dir->i_generation, namelen,
6776 dentry->d_name.name, PFID(fid), rc);
6782 osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
6783 struct osd_it_ea *it, struct lu_fid *fid,
6784 struct osd_inode_id *id, __u32 *attr)
6786 struct osd_thread_info *info = osd_oti_get(env);
6787 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
6788 struct osd_device *dev = osd_obj2dev(obj);
6789 struct super_block *sb = osd_sb(dev);
6790 const char *devname = osd_name(dev);
6791 struct osd_it_ea_dirent *ent = it->oie_dirent;
6792 struct inode *dir = obj->oo_inode;
6793 struct htree_lock *hlock = NULL;
6794 struct buffer_head *bh = NULL;
6795 handle_t *jh = NULL;
6796 struct ldiskfs_dir_entry_2 *de;
6797 struct dentry *dentry;
6798 struct inode *inode;
6799 const struct lu_fid *pfid = lu_object_fid(&obj->oo_dt.do_lu);
6802 bool dotdot = false;
6807 if (ent->oied_name[0] == '.') {
6808 if (ent->oied_namelen == 1)
6811 if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
6815 osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
6816 inode = osd_iget(info, dev, id);
6817 if (IS_ERR(inode)) {
6818 rc = PTR_ERR(inode);
6819 if (rc == -ENOENT || rc == -ESTALE) {
6821 * Maybe dangling name entry, or
6822 * corrupted directory entry.
6824 *attr |= LUDA_UNKNOWN;
6827 CDEBUG(D_LFSCK, "%s: fail to iget() for dirent "
6828 "check_repair, dir = %lu/%u, name = %.*s, "
6829 "ino = %llu, rc = %d\n",
6830 devname, dir->i_ino, dir->i_generation,
6831 ent->oied_namelen, ent->oied_name,
6838 dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
6840 rc = osd_get_lma(info, inode, dentry, &info->oti_ost_attrs);
6841 if (rc == -ENODATA || !fid_is_sane(&lma->lma_self_fid))
6847 * We need to ensure that the name entry is still valid.
6848 * Because it may be removed or renamed by other already.
6850 * The unlink or rename operation will start journal before PDO lock,
6851 * so to avoid deadlock, here we need to start journal handle before
6852 * related PDO lock also. But because we do not know whether there
6853 * will be something to be repaired before PDO lock, we just start
6854 * journal without conditions.
6856 * We may need to remove the name entry firstly, then insert back.
6857 * One credit is for user quota file update.
6858 * One credit is for group quota file update.
6859 * Two credits are for dirty inode.
6861 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
6862 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
6864 if (dev->od_dirent_journal != 0) {
6867 jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
6870 CDEBUG(D_LFSCK, "%s: fail to start trans for dirent "
6871 "check_repair, dir = %lu/%u, credits = %d, "
6872 "name = %.*s, ino = %llu: rc = %d\n",
6873 devname, dir->i_ino, dir->i_generation, credits,
6874 ent->oied_namelen, ent->oied_name,
6877 GOTO(out_inode, rc);
6880 if (obj->oo_hl_head != NULL) {
6881 hlock = osd_oti_get(env)->oti_hlock;
6883 * "0" means exclusive lock for the whole directory.
6884 * We need to prevent others access such name entry
6885 * during the delete + insert. Neither HLOCK_ADD nor
6886 * HLOCK_DEL cannot guarantee the atomicity.
6888 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
6890 down_write(&obj->oo_ext_idx_sem);
6893 if (obj->oo_hl_head != NULL) {
6894 hlock = osd_oti_get(env)->oti_hlock;
6895 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
6896 LDISKFS_HLOCK_LOOKUP);
6898 down_read(&obj->oo_ext_idx_sem);
6902 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
6903 if (IS_ERR(bh) || le32_to_cpu(de->inode) != inode->i_ino) {
6904 *attr |= LUDA_IGNORE;
6910 * For dotdot entry, if there is not enough space to hold the
6911 * FID-in-dirent, just keep them there. It only happens when the
6912 * device upgraded from 1.8 or restored from MDT file-level backup.
6913 * For the whole directory, only dotdot entry have no FID-in-dirent
6914 * and needs to get FID from LMA when readdir, it will not affect the
6917 if (dotdot && !osd_dotdot_has_space(de)) {
6918 *attr |= LUDA_UNKNOWN;
6924 if (lu_fid_eq(fid, &lma->lma_self_fid))
6927 if (unlikely(lma->lma_compat & LMAC_NOT_IN_OI)) {
6928 struct lu_fid *tfid = &lma->lma_self_fid;
6930 if (likely(dotdot &&
6931 fid_seq(tfid) == FID_SEQ_LOCAL_FILE &&
6932 fid_oid(tfid) == REMOTE_PARENT_DIR_OID)) {
6934 * It must be REMOTE_PARENT_DIR and as the
6935 * 'dotdot' entry of remote directory
6937 *attr |= LUDA_IGNORE;
6939 CDEBUG(D_LFSCK, "%s: expect remote agent "
6940 "parent directory, but got %.*s under "
6941 "dir = %lu/%u with the FID "DFID"\n",
6942 devname, ent->oied_namelen,
6943 ent->oied_name, dir->i_ino,
6944 dir->i_generation, PFID(tfid));
6946 *attr |= LUDA_UNKNOWN;
6953 if (!fid_is_zero(fid)) {
6954 rc = osd_verify_ent_by_linkea(env, inode, pfid, ent->oied_name,
6956 if (rc == -ENOENT ||
6958 !(dev->od_scrub.os_scrub.os_file.sf_flags & SF_UPGRADE))) {
6960 * linkEA does not recognize the dirent entry,
6961 * it may because the dirent entry corruption
6962 * and points to other's inode.
6964 CDEBUG(D_LFSCK, "%s: the target inode does not "
6965 "recognize the dirent, dir = %lu/%u, "
6966 " name = %.*s, ino = %llu, "
6967 DFID": rc = %d\n", devname, dir->i_ino,
6968 dir->i_generation, ent->oied_namelen,
6969 ent->oied_name, ent->oied_ino, PFID(fid), rc);
6970 *attr |= LUDA_UNKNOWN;
6975 if (rc && rc != -ENODATA) {
6976 CDEBUG(D_LFSCK, "%s: fail to verify FID in the dirent, "
6977 "dir = %lu/%u, name = %.*s, ino = %llu, "
6978 DFID": rc = %d\n", devname, dir->i_ino,
6979 dir->i_generation, ent->oied_namelen,
6980 ent->oied_name, ent->oied_ino, PFID(fid), rc);
6981 *attr |= LUDA_UNKNOWN;
6989 * linkEA recognizes the dirent entry, the FID-in-LMA is
6990 * valid, trusted, in spite of fid_is_sane(fid) or not.
6992 if (*attr & LUDA_VERIFY_DRYRUN) {
6993 *fid = lma->lma_self_fid;
6994 *attr |= LUDA_REPAIR;
7001 dev->od_dirent_journal = 1;
7002 if (hlock != NULL) {
7003 ldiskfs_htree_unlock(hlock);
7006 up_read(&obj->oo_ext_idx_sem);
7012 *fid = lma->lma_self_fid;
7014 /* Update or append the FID-in-dirent. */
7015 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
7016 bh, de, hlock, dotdot);
7018 *attr |= LUDA_REPAIR;
7020 CDEBUG(D_LFSCK, "%s: fail to re-insert FID after "
7021 "the dirent, dir = %lu/%u, name = %.*s, "
7022 "ino = %llu, "DFID": rc = %d\n",
7023 devname, dir->i_ino, dir->i_generation,
7024 ent->oied_namelen, ent->oied_name,
7025 ent->oied_ino, PFID(fid), rc);
7027 /* lma is NULL, trust the FID-in-dirent if it is valid. */
7028 if (*attr & LUDA_VERIFY_DRYRUN) {
7029 if (fid_is_sane(fid)) {
7030 *attr |= LUDA_REPAIR;
7031 } else if (dev->od_index == 0) {
7032 lu_igif_build(fid, inode->i_ino,
7033 inode->i_generation);
7034 *attr |= LUDA_UPGRADE;
7042 dev->od_dirent_journal = 1;
7043 if (hlock != NULL) {
7044 ldiskfs_htree_unlock(hlock);
7047 up_read(&obj->oo_ext_idx_sem);
7054 if (unlikely(fid_is_sane(fid))) {
7056 * FID-in-dirent exists, but FID-in-LMA is lost.
7057 * Trust the FID-in-dirent, and add FID-in-LMA.
7059 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
7061 *attr |= LUDA_REPAIR;
7063 CDEBUG(D_LFSCK, "%s: fail to set LMA for "
7064 "update dirent, dir = %lu/%u, "
7065 "name = %.*s, ino = %llu, "
7067 devname, dir->i_ino, dir->i_generation,
7068 ent->oied_namelen, ent->oied_name,
7069 ent->oied_ino, PFID(fid), rc);
7070 } else if (dev->od_index == 0) {
7071 lu_igif_build(fid, inode->i_ino, inode->i_generation);
7073 * It is probably IGIF object. Only aappend the
7074 * FID-in-dirent. OI scrub will process FID-in-LMA.
7076 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
7077 bh, de, hlock, dotdot);
7079 *attr |= LUDA_UPGRADE;
7081 CDEBUG(D_LFSCK, "%s: fail to append IGIF "
7082 "after the dirent, dir = %lu/%u, "
7083 "name = %.*s, ino = %llu, "
7085 devname, dir->i_ino, dir->i_generation,
7086 ent->oied_namelen, ent->oied_name,
7087 ent->oied_ino, PFID(fid), rc);
7096 if (hlock != NULL) {
7097 ldiskfs_htree_unlock(hlock);
7099 if (dev->od_dirent_journal != 0)
7100 up_write(&obj->oo_ext_idx_sem);
7102 up_read(&obj->oo_ext_idx_sem);
7106 ldiskfs_journal_stop(jh);
7110 if (rc >= 0 && !dirty)
7111 dev->od_dirent_journal = 0;
7117 * Returns the value at current position from iterator's in memory structure.
7119 * \param di struct osd_it_ea, iterator's in memory structure
7120 * \param attr attr requested for dirent.
7121 * \param lde lustre dirent
7123 * \retval 0 no error and \param lde has correct lustre dirent.
7124 * \retval -ve on error
7126 static inline int osd_it_ea_rec(const struct lu_env *env,
7127 const struct dt_it *di,
7128 struct dt_rec *dtrec, __u32 attr)
7130 struct osd_it_ea *it = (struct osd_it_ea *)di;
7131 struct osd_object *obj = it->oie_obj;
7132 struct osd_device *dev = osd_obj2dev(obj);
7133 struct osd_thread_info *oti = osd_oti_get(env);
7134 struct osd_inode_id *id = &oti->oti_id;
7135 struct lu_fid *fid = &it->oie_dirent->oied_fid;
7136 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
7137 __u32 ino = it->oie_dirent->oied_ino;
7142 LASSERT(!is_remote_parent_ino(dev, obj->oo_inode->i_ino));
7144 if (attr & LUDA_VERIFY) {
7145 if (unlikely(is_remote_parent_ino(dev, ino))) {
7146 attr |= LUDA_IGNORE;
7148 * If the parent is on remote MDT, and there
7149 * is no FID-in-dirent, then we have to get
7150 * the parent FID from the linkEA.
7152 if (!fid_is_sane(fid) &&
7153 it->oie_dirent->oied_namelen == 2 &&
7154 it->oie_dirent->oied_name[0] == '.' &&
7155 it->oie_dirent->oied_name[1] == '.')
7156 osd_get_pfid_from_linkea(env, obj, fid);
7158 rc = osd_dirent_check_repair(env, obj, it, fid, id,
7162 if (!fid_is_sane(fid))
7163 attr |= LUDA_UNKNOWN;
7165 attr &= ~LU_DIRENT_ATTRS_MASK;
7166 if (!fid_is_sane(fid)) {
7167 bool is_dotdot = false;
7169 if (it->oie_dirent->oied_namelen == 2 &&
7170 it->oie_dirent->oied_name[0] == '.' &&
7171 it->oie_dirent->oied_name[1] == '.')
7174 * If the parent is on remote MDT, and there
7175 * is no FID-in-dirent, then we have to get
7176 * the parent FID from the linkEA.
7178 if (is_remote_parent_ino(dev, ino) && is_dotdot) {
7179 rc = osd_get_pfid_from_linkea(env, obj, fid);
7181 if (is_dotdot == false &&
7182 OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP))
7185 rc = osd_ea_fid_get(env, obj, ino, fid, id);
7188 osd_id_gen(id, ino, OSD_OII_NOGEN);
7192 /* Pack the entry anyway, at least the offset is right. */
7193 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
7194 it->oie_dirent->oied_name,
7195 it->oie_dirent->oied_namelen,
7196 it->oie_dirent->oied_type, attr);
7201 if (osd_remote_fid(env, dev, fid))
7204 if (likely(!(attr & (LUDA_IGNORE | LUDA_UNKNOWN)) && rc == 0))
7205 osd_add_oi_cache(oti, dev, id, fid);
7207 RETURN(rc > 0 ? 0 : rc);
7211 * Returns the record size size at current position.
7213 * This function will return record(lu_dirent) size in bytes.
7215 * \param[in] env execution environment
7216 * \param[in] di iterator's in memory structure
7217 * \param[in] attr attribute of the entry, only requires LUDA_TYPE to
7218 * calculate the lu_dirent size.
7220 * \retval record size(in bytes & in memory) of the current lu_dirent
7223 static int osd_it_ea_rec_size(const struct lu_env *env, const struct dt_it *di,
7226 struct osd_it_ea *it = (struct osd_it_ea *)di;
7228 return lu_dirent_calc_size(it->oie_dirent->oied_namelen, attr);
7232 * Returns a cookie for current position of the iterator head, so that
7233 * user can use this cookie to load/start the iterator next time.
7235 * \param di iterator's in memory structure
7237 * \retval cookie for current position, on success
7239 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
7241 struct osd_it_ea *it = (struct osd_it_ea *)di;
7243 return it->oie_dirent->oied_off;
7247 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
7248 * to load a directory entry at a time and stored it i inn,
7249 * in iterator's in-memory data structure.
7251 * \param di struct osd_it_ea, iterator's in memory structure
7253 * \retval +ve on success
7254 * \retval -ve on error
7256 static int osd_it_ea_load(const struct lu_env *env,
7257 const struct dt_it *di, __u64 hash)
7259 struct osd_it_ea *it = (struct osd_it_ea *)di;
7263 it->oie_file.f_pos = hash;
7265 rc = osd_ldiskfs_it_fill(env, di);
7276 * Index lookup function for interoperability mode (b11826).
7278 * \param key, key i.e. file name to be searched
7280 * \retval +ve, on success
7281 * \retval -ve, on error
7283 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
7284 struct dt_rec *rec, const struct dt_key *key)
7286 struct osd_object *obj = osd_dt_obj(dt);
7291 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
7292 LINVRNT(osd_invariant(obj));
7294 rc = osd_ea_lookup_rec(env, obj, rec, key);
7301 * Index and Iterator operations for interoperability
7302 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
7304 static const struct dt_index_operations osd_index_ea_ops = {
7305 .dio_lookup = osd_index_ea_lookup,
7306 .dio_declare_insert = osd_index_declare_ea_insert,
7307 .dio_insert = osd_index_ea_insert,
7308 .dio_declare_delete = osd_index_declare_ea_delete,
7309 .dio_delete = osd_index_ea_delete,
7311 .init = osd_it_ea_init,
7312 .fini = osd_it_ea_fini,
7313 .get = osd_it_ea_get,
7314 .put = osd_it_ea_put,
7315 .next = osd_it_ea_next,
7316 .key = osd_it_ea_key,
7317 .key_size = osd_it_ea_key_size,
7318 .rec = osd_it_ea_rec,
7319 .rec_size = osd_it_ea_rec_size,
7320 .store = osd_it_ea_store,
7321 .load = osd_it_ea_load
7325 static void *osd_key_init(const struct lu_context *ctx,
7326 struct lu_context_key *key)
7328 struct osd_thread_info *info;
7330 OBD_ALLOC_PTR(info);
7332 return ERR_PTR(-ENOMEM);
7334 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7335 if (info->oti_it_ea_buf == NULL)
7338 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
7340 info->oti_hlock = ldiskfs_htree_lock_alloc();
7341 if (info->oti_hlock == NULL)
7347 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7350 return ERR_PTR(-ENOMEM);
7353 static void osd_key_fini(const struct lu_context *ctx,
7354 struct lu_context_key *key, void *data)
7356 struct osd_thread_info *info = data;
7357 struct ldiskfs_inode_info *lli = LDISKFS_I(info->oti_inode);
7358 struct osd_idmap_cache *idc = info->oti_ins_cache;
7360 if (info->oti_dio_pages) {
7362 for (i = 0; i < PTLRPC_MAX_BRW_PAGES; i++) {
7363 if (info->oti_dio_pages[i])
7364 __free_page(info->oti_dio_pages[i]);
7366 OBD_FREE(info->oti_dio_pages,
7367 sizeof(struct page *) * PTLRPC_MAX_BRW_PAGES);
7370 if (info->oti_inode != NULL)
7372 if (info->oti_hlock != NULL)
7373 ldiskfs_htree_lock_free(info->oti_hlock);
7374 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7375 lu_buf_free(&info->oti_iobuf.dr_pg_buf);
7376 lu_buf_free(&info->oti_iobuf.dr_bl_buf);
7377 lu_buf_free(&info->oti_iobuf.dr_lnb_buf);
7378 lu_buf_free(&info->oti_big_buf);
7380 LASSERT(info->oti_ins_cache_size > 0);
7381 OBD_FREE(idc, sizeof(*idc) * info->oti_ins_cache_size);
7382 info->oti_ins_cache = NULL;
7383 info->oti_ins_cache_size = 0;
7388 static void osd_key_exit(const struct lu_context *ctx,
7389 struct lu_context_key *key, void *data)
7391 struct osd_thread_info *info = data;
7393 LASSERT(info->oti_r_locks == 0);
7394 LASSERT(info->oti_w_locks == 0);
7395 LASSERT(info->oti_txns == 0);
7398 /* type constructor/destructor: osd_type_init, osd_type_fini */
7399 LU_TYPE_INIT_FINI(osd, &osd_key);
7401 struct lu_context_key osd_key = {
7402 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
7403 .lct_init = osd_key_init,
7404 .lct_fini = osd_key_fini,
7405 .lct_exit = osd_key_exit
7409 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
7410 const char *name, struct lu_device *next)
7412 struct osd_device *osd = osd_dev(d);
7414 if (strlcpy(osd->od_svname, name, sizeof(osd->od_svname)) >=
7415 sizeof(osd->od_svname))
7417 return osd_procfs_init(osd, name);
7420 static int osd_fid_init(const struct lu_env *env, struct osd_device *osd)
7422 struct seq_server_site *ss = osd_seq_site(osd);
7427 if (osd->od_is_ost || osd->od_cl_seq != NULL)
7430 if (unlikely(ss == NULL))
7433 OBD_ALLOC_PTR(osd->od_cl_seq);
7434 if (osd->od_cl_seq == NULL)
7437 rc = seq_client_init(osd->od_cl_seq, NULL, LUSTRE_SEQ_METADATA,
7438 osd->od_svname, ss->ss_server_seq);
7440 OBD_FREE_PTR(osd->od_cl_seq);
7441 osd->od_cl_seq = NULL;
7445 if (ss->ss_node_id == 0) {
7447 * If the OSD on the sequence controller(MDT0), then allocate
7448 * sequence here, otherwise allocate sequence after connected
7449 * to MDT0 (see mdt_register_lwp_callback()).
7451 rc = seq_server_alloc_meta(osd->od_cl_seq->lcs_srv,
7452 &osd->od_cl_seq->lcs_space, env);
7458 static void osd_fid_fini(const struct lu_env *env, struct osd_device *osd)
7460 if (osd->od_cl_seq == NULL)
7463 seq_client_fini(osd->od_cl_seq);
7464 OBD_FREE_PTR(osd->od_cl_seq);
7465 osd->od_cl_seq = NULL;
7468 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
7472 /* shutdown quota slave instance associated with the device */
7473 if (o->od_quota_slave_md != NULL) {
7474 struct qsd_instance *qsd = o->od_quota_slave_md;
7476 o->od_quota_slave_md = NULL;
7480 if (o->od_quota_slave_dt != NULL) {
7481 struct qsd_instance *qsd = o->od_quota_slave_dt;
7483 o->od_quota_slave_dt = NULL;
7487 osd_fid_fini(env, o);
7488 osd_scrub_cleanup(env, o);
7493 static void osd_umount(const struct lu_env *env, struct osd_device *o)
7497 if (o->od_mnt != NULL) {
7498 shrink_dcache_sb(osd_sb(o));
7499 osd_sync(env, &o->od_dt_dev);
7508 static int osd_mount(const struct lu_env *env,
7509 struct osd_device *o, struct lustre_cfg *cfg)
7511 const char *name = lustre_cfg_string(cfg, 0);
7512 const char *dev = lustre_cfg_string(cfg, 1);
7514 unsigned long page, s_flags, lmd_flags = 0;
7515 struct page *__page;
7516 struct file_system_type *type;
7517 char *options = NULL;
7519 struct osd_thread_info *info = osd_oti_get(env);
7520 struct lu_fid *fid = &info->oti_fid;
7521 struct inode *inode;
7522 int rc = 0, force_over_512tb = 0;
7526 if (o->od_mnt != NULL)
7529 if (strlen(dev) >= sizeof(o->od_mntdev))
7531 strcpy(o->od_mntdev, dev);
7533 str = lustre_cfg_string(cfg, 2);
7534 s_flags = simple_strtoul(str, NULL, 0);
7535 str = strstr(str, ":");
7537 lmd_flags = simple_strtoul(str + 1, NULL, 0);
7538 opts = lustre_cfg_string(cfg, 3);
7540 if (opts == NULL || strstr(opts, "bigendian_extents") == NULL) {
7541 CERROR("%s: device %s extents feature is not guaranteed to "
7542 "work on big-endian systems. Use \"bigendian_extents\" "
7543 "mount option to override.\n", name, dev);
7547 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7548 if (opts != NULL && strstr(opts, "force_over_128tb") != NULL) {
7549 CWARN("force_over_128tb option is deprecated. "
7550 "Filesystems less than 512TB can be created without any "
7551 "force options. Use force_over_512tb option for "
7552 "filesystems greater than 512TB.\n");
7555 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 1, 53, 0)
7556 if (opts != NULL && strstr(opts, "force_over_256tb") != NULL) {
7557 CWARN("force_over_256tb option is deprecated. "
7558 "Filesystems less than 512TB can be created without any "
7559 "force options. Use force_over_512tb option for "
7560 "filesystems greater than 512TB.\n");
7564 if (opts != NULL && strstr(opts, "force_over_512tb") != NULL)
7565 force_over_512tb = 1;
7567 __page = alloc_page(GFP_KERNEL);
7569 GOTO(out, rc = -ENOMEM);
7570 page = (unsigned long)page_address(__page);
7571 options = (char *)page;
7574 /* strip out the options for back compatiblity */
7575 static char *sout[] = {
7582 /* strip out option we processed in osd */
7583 "bigendian_extents",
7589 strcat(options, opts);
7590 for (rc = 0, str = options; sout[rc]; ) {
7591 char *op = strstr(str, sout[rc]);
7598 if (op == options || *(op - 1) == ',') {
7599 str = op + strlen(sout[rc]);
7600 if (*str == ',' || *str == '\0') {
7601 *str == ',' ? str++ : str;
7602 memmove(op, str, strlen(str) + 1);
7605 for (str = op; *str != ',' && *str != '\0'; str++)
7609 strncat(options, "user_xattr,acl", 14);
7612 /* Glom up mount options */
7613 if (*options != '\0')
7614 strcat(options, ",");
7615 strlcat(options, "no_mbcache,nodelalloc", PAGE_SIZE);
7617 type = get_fs_type("ldiskfs");
7619 CERROR("%s: cannot find ldiskfs module\n", name);
7620 GOTO(out, rc = -ENODEV);
7623 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
7624 module_put(type->owner);
7626 if (IS_ERR(o->od_mnt)) {
7627 rc = PTR_ERR(o->od_mnt);
7629 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
7633 if (ldiskfs_blocks_count(LDISKFS_SB(osd_sb(o))->s_es) <<
7634 osd_sb(o)->s_blocksize_bits > 512ULL << 40 &&
7635 force_over_512tb == 0) {
7636 CERROR("%s: device %s LDISKFS does not support filesystems "
7637 "greater than 512TB and can cause data corruption. "
7638 "Use \"force_over_512tb\" mount option to override.\n",
7640 GOTO(out_mnt, rc = -EINVAL);
7643 if (lmd_flags & LMD_FLG_DEV_RDONLY) {
7644 if (priv_dev_set_rdonly) {
7645 priv_dev_set_rdonly(osd_sb(o)->s_bdev);
7646 o->od_dt_dev.dd_rdonly = 1;
7647 LCONSOLE_WARN("%s: set dev_rdonly on this device\n",
7650 LCONSOLE_WARN("%s: not support dev_rdonly on this device",
7653 GOTO(out_mnt, rc = -EOPNOTSUPP);
7655 } else if (priv_dev_check_rdonly &&
7656 priv_dev_check_rdonly(osd_sb(o)->s_bdev)) {
7657 CERROR("%s: underlying device %s is marked as "
7658 "read-only. Setup failed\n", name, dev);
7660 GOTO(out_mnt, rc = -EROFS);
7663 if (!ldiskfs_has_feature_journal(o->od_mnt->mnt_sb)) {
7664 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
7665 GOTO(out_mnt, rc = -EINVAL);
7668 #ifdef LDISKFS_MOUNT_DIRDATA
7669 if (ldiskfs_has_feature_dirdata(o->od_mnt->mnt_sb))
7670 LDISKFS_SB(osd_sb(o))->s_mount_opt |= LDISKFS_MOUNT_DIRDATA;
7671 else if (strstr(name, "MDT")) /* don't complain for MGT or OSTs */
7672 CWARN("%s: device %s was upgraded from Lustre-1.x without "
7673 "enabling the dirdata feature. If you do not want to "
7674 "downgrade to Lustre-1.x again, you can enable it via "
7675 "'tune2fs -O dirdata device'\n", name, dev);
7677 inode = osd_sb(o)->s_root->d_inode;
7678 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
7679 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
7681 CERROR("%s: failed to set lma on %s root inode\n", name, dev);
7685 if (lmd_flags & LMD_FLG_NOSCRUB)
7686 o->od_auto_scrub_interval = AS_NEVER;
7688 if (blk_queue_nonrot(bdev_get_queue(osd_sb(o)->s_bdev))) {
7689 /* do not use pagecache with flash-backed storage */
7690 o->od_writethrough_cache = 0;
7691 o->od_read_cache = 0;
7702 __free_page(__page);
7707 static struct lu_device *osd_device_fini(const struct lu_env *env,
7708 struct lu_device *d)
7710 struct osd_device *o = osd_dev(d);
7714 osd_index_backup(env, o, false);
7715 osd_shutdown(env, o);
7717 osd_obj_map_fini(o);
7723 static int osd_device_init0(const struct lu_env *env,
7724 struct osd_device *o,
7725 struct lustre_cfg *cfg)
7727 struct lu_device *l = osd2lu_dev(o);
7728 struct osd_thread_info *info;
7732 /* if the module was re-loaded, env can loose its keys */
7733 rc = lu_env_refill((struct lu_env *)env);
7736 info = osd_oti_get(env);
7739 l->ld_ops = &osd_lu_ops;
7740 o->od_dt_dev.dd_ops = &osd_dt_ops;
7742 spin_lock_init(&o->od_osfs_lock);
7743 mutex_init(&o->od_otable_mutex);
7744 INIT_LIST_HEAD(&o->od_orphan_list);
7745 INIT_LIST_HEAD(&o->od_index_backup_list);
7746 INIT_LIST_HEAD(&o->od_index_restore_list);
7747 spin_lock_init(&o->od_lock);
7748 o->od_index_backup_policy = LIBP_NONE;
7751 o->od_read_cache = 1;
7752 o->od_writethrough_cache = 1;
7753 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
7754 o->od_auto_scrub_interval = AS_DEFAULT;
7756 cplen = strlcpy(o->od_svname, lustre_cfg_string(cfg, 4),
7757 sizeof(o->od_svname));
7758 if (cplen >= sizeof(o->od_svname)) {
7763 o->od_index_backup_stop = 0;
7764 o->od_index = -1; /* -1 means index is invalid */
7765 rc = server_name2index(o->od_svname, &o->od_index, NULL);
7766 if (rc == LDD_F_SV_TYPE_OST)
7769 o->od_full_scrub_ratio = OFSR_DEFAULT;
7770 o->od_full_scrub_threshold_rate = FULL_SCRUB_THRESHOLD_RATE_DEFAULT;
7771 rc = osd_mount(env, o, cfg);
7775 rc = osd_obj_map_init(env, o);
7779 rc = lu_site_init(&o->od_site, l);
7781 GOTO(out_compat, rc);
7782 o->od_site.ls_bottom_dev = l;
7784 rc = lu_site_init_finish(&o->od_site);
7788 INIT_LIST_HEAD(&o->od_ios_list);
7789 /* setup scrub, including OI files initialization */
7791 rc = osd_scrub_setup(env, o);
7796 rc = osd_procfs_init(o, o->od_svname);
7798 CERROR("%s: can't initialize procfs: rc = %d\n",
7800 GOTO(out_scrub, rc);
7803 LASSERT(l->ld_site->ls_linkage.next != NULL);
7804 LASSERT(l->ld_site->ls_linkage.prev != NULL);
7806 /* initialize quota slave instance */
7807 /* currently it's no need to prepare qsd_instance_md for OST */
7808 if (!o->od_is_ost) {
7809 o->od_quota_slave_md = qsd_init(env, o->od_svname,
7811 o->od_proc_entry, true);
7812 if (IS_ERR(o->od_quota_slave_md)) {
7813 rc = PTR_ERR(o->od_quota_slave_md);
7814 o->od_quota_slave_md = NULL;
7815 GOTO(out_procfs, rc);
7819 o->od_quota_slave_dt = qsd_init(env, o->od_svname, &o->od_dt_dev,
7820 o->od_proc_entry, false);
7822 if (IS_ERR(o->od_quota_slave_dt)) {
7823 if (o->od_quota_slave_md != NULL) {
7824 qsd_fini(env, o->od_quota_slave_md);
7825 o->od_quota_slave_md = NULL;
7828 rc = PTR_ERR(o->od_quota_slave_dt);
7829 o->od_quota_slave_dt = NULL;
7830 GOTO(out_procfs, rc);
7838 osd_scrub_cleanup(env, o);
7840 lu_site_fini(&o->od_site);
7842 osd_obj_map_fini(o);
7849 static struct lu_device *osd_device_alloc(const struct lu_env *env,
7850 struct lu_device_type *t,
7851 struct lustre_cfg *cfg)
7853 struct osd_device *o;
7858 return ERR_PTR(-ENOMEM);
7860 rc = dt_device_init(&o->od_dt_dev, t);
7863 * Because the ctx might be revived in dt_device_init,
7864 * refill the env here
7866 lu_env_refill((struct lu_env *)env);
7867 rc = osd_device_init0(env, o, cfg);
7869 dt_device_fini(&o->od_dt_dev);
7872 if (unlikely(rc != 0))
7875 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
7878 static struct lu_device *osd_device_free(const struct lu_env *env,
7879 struct lu_device *d)
7881 struct osd_device *o = osd_dev(d);
7885 /* XXX: make osd top device in order to release reference */
7886 d->ld_site->ls_top_dev = d;
7887 lu_site_purge(env, d->ld_site, -1);
7888 if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
7889 LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
7890 lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
7892 lu_site_fini(&o->od_site);
7893 dt_device_fini(&o->od_dt_dev);
7898 static int osd_process_config(const struct lu_env *env,
7899 struct lu_device *d, struct lustre_cfg *cfg)
7901 struct osd_device *o = osd_dev(d);
7907 switch (cfg->lcfg_command) {
7909 rc = osd_mount(env, o, cfg);
7913 * For the case LCFG_PRE_CLEANUP is not called in advance,
7914 * that may happend if hit failure during mount process.
7916 osd_index_backup(env, o, false);
7917 lu_dev_del_linkage(d->ld_site, d);
7918 rc = osd_shutdown(env, o);
7921 LASSERT(&o->od_dt_dev);
7922 count = class_modify_config(cfg, PARAM_OSD,
7923 &o->od_dt_dev.dd_kobj);
7925 count = class_modify_config(cfg, PARAM_OST,
7926 &o->od_dt_dev.dd_kobj);
7927 rc = count > 0 ? 0 : count;
7929 case LCFG_PRE_CLEANUP:
7931 osd_index_backup(env, o,
7932 o->od_index_backup_policy != LIBP_NONE);
7942 static int osd_recovery_complete(const struct lu_env *env,
7943 struct lu_device *d)
7945 struct osd_device *osd = osd_dev(d);
7950 if (osd->od_quota_slave_md == NULL && osd->od_quota_slave_dt == NULL)
7954 * start qsd instance on recovery completion, this notifies the quota
7955 * slave code that we are about to process new requests now
7957 rc = qsd_start(env, osd->od_quota_slave_dt);
7958 if (rc == 0 && osd->od_quota_slave_md != NULL)
7959 rc = qsd_start(env, osd->od_quota_slave_md);
7965 * we use exports to track all osd users
7967 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
7968 struct obd_device *obd, struct obd_uuid *cluuid,
7969 struct obd_connect_data *data, void *localdata)
7971 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
7972 struct lustre_handle conn;
7977 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
7979 rc = class_connect(&conn, obd, cluuid);
7983 *exp = class_conn2export(&conn);
7985 spin_lock(&osd->od_osfs_lock);
7987 spin_unlock(&osd->od_osfs_lock);
7993 * once last export (we don't count self-export) disappeared
7994 * osd can be released
7996 static int osd_obd_disconnect(struct obd_export *exp)
7998 struct obd_device *obd = exp->exp_obd;
7999 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8000 int rc, release = 0;
8004 /* Only disconnect the underlying layers on the final disconnect. */
8005 spin_lock(&osd->od_osfs_lock);
8007 if (osd->od_connects == 0)
8009 spin_unlock(&osd->od_osfs_lock);
8011 rc = class_disconnect(exp); /* bz 9811 */
8013 if (rc == 0 && release)
8014 class_manual_cleanup(obd);
8018 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
8019 struct lu_device *dev)
8021 struct osd_device *osd = osd_dev(dev);
8022 struct lr_server_data *lsd =
8023 &osd->od_dt_dev.dd_lu_dev.ld_site->ls_tgt->lut_lsd;
8028 if (osd->od_quota_slave_md != NULL) {
8029 /* set up quota slave objects for inode */
8030 result = qsd_prepare(env, osd->od_quota_slave_md);
8035 if (osd->od_quota_slave_dt != NULL) {
8036 /* set up quota slave objects for block */
8037 result = qsd_prepare(env, osd->od_quota_slave_dt);
8043 if (lsd->lsd_feature_incompat & OBD_COMPAT_OST) {
8044 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
8045 if (lsd->lsd_feature_rocompat & OBD_ROCOMPAT_IDX_IN_IDIF) {
8046 osd->od_index_in_idif = 1;
8048 osd->od_index_in_idif = 0;
8049 result = osd_register_proc_index_in_idif(osd);
8054 osd->od_index_in_idif = 1;
8058 result = osd_fid_init(env, osd);
8063 static int osd_fid_alloc(const struct lu_env *env, struct obd_export *exp,
8064 struct lu_fid *fid, struct md_op_data *op_data)
8066 struct osd_device *osd = osd_dev(exp->exp_obd->obd_lu_dev);
8068 return seq_client_alloc_fid(env, osd->od_cl_seq, fid);
8071 static const struct lu_object_operations osd_lu_obj_ops = {
8072 .loo_object_init = osd_object_init,
8073 .loo_object_delete = osd_object_delete,
8074 .loo_object_release = osd_object_release,
8075 .loo_object_free = osd_object_free,
8076 .loo_object_print = osd_object_print,
8077 .loo_object_invariant = osd_object_invariant
8080 const struct lu_device_operations osd_lu_ops = {
8081 .ldo_object_alloc = osd_object_alloc,
8082 .ldo_process_config = osd_process_config,
8083 .ldo_recovery_complete = osd_recovery_complete,
8084 .ldo_prepare = osd_prepare,
8087 static const struct lu_device_type_operations osd_device_type_ops = {
8088 .ldto_init = osd_type_init,
8089 .ldto_fini = osd_type_fini,
8091 .ldto_start = osd_type_start,
8092 .ldto_stop = osd_type_stop,
8094 .ldto_device_alloc = osd_device_alloc,
8095 .ldto_device_free = osd_device_free,
8097 .ldto_device_init = osd_device_init,
8098 .ldto_device_fini = osd_device_fini
8101 static struct lu_device_type osd_device_type = {
8102 .ldt_tags = LU_DEVICE_DT,
8103 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
8104 .ldt_ops = &osd_device_type_ops,
8105 .ldt_ctx_tags = LCT_LOCAL,
8108 static int osd_health_check(const struct lu_env *env, struct obd_device *obd)
8110 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8111 struct super_block *sb = osd_sb(osd);
8113 return (osd->od_mnt == NULL || sb->s_flags & MS_RDONLY);
8117 * lprocfs legacy support.
8119 static struct obd_ops osd_obd_device_ops = {
8120 .o_owner = THIS_MODULE,
8121 .o_connect = osd_obd_connect,
8122 .o_disconnect = osd_obd_disconnect,
8123 .o_fid_alloc = osd_fid_alloc,
8124 .o_health_check = osd_health_check,
8127 static ssize_t track_declares_assert_show(struct kobject *kobj,
8128 struct attribute *attr,
8131 return sprintf(buf, "%d\n", ldiskfs_track_declares_assert);
8134 static ssize_t track_declares_assert_store(struct kobject *kobj,
8135 struct attribute *attr,
8136 const char *buffer, size_t count)
8138 bool track_declares_assert;
8141 rc = kstrtobool(buffer, &track_declares_assert);
8145 ldiskfs_track_declares_assert = track_declares_assert;
8149 LUSTRE_RW_ATTR(track_declares_assert);
8151 static int __init osd_init(void)
8153 struct kobject *kobj;
8156 CLASSERT(BH_DXLock < sizeof(((struct buffer_head *)0)->b_state) * 8);
8157 #if !defined(CONFIG_DEBUG_MUTEXES) && !defined(CONFIG_DEBUG_SPINLOCK)
8158 /* please, try to keep osd_thread_info smaller than a page */
8159 CLASSERT(sizeof(struct osd_thread_info) <= PAGE_SIZE);
8164 rc = lu_kmem_init(ldiskfs_caches);
8168 #ifdef CONFIG_KALLSYMS
8169 priv_dev_set_rdonly = (void *)kallsyms_lookup_name("dev_set_rdonly");
8170 priv_dev_check_rdonly =
8171 (void *)kallsyms_lookup_name("dev_check_rdonly");
8174 rc = class_register_type(&osd_obd_device_ops, NULL, true, NULL,
8175 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
8177 lu_kmem_fini(ldiskfs_caches);
8181 kobj = kset_find_obj(lustre_kset, LUSTRE_OSD_LDISKFS_NAME);
8183 rc = sysfs_create_file(kobj,
8184 &lustre_attr_track_declares_assert.attr);
8187 CWARN("osd-ldiskfs: track_declares_assert failed to register with sysfs\n");
8194 static void __exit osd_exit(void)
8196 struct kobject *kobj;
8198 kobj = kset_find_obj(lustre_kset, LUSTRE_OSD_LDISKFS_NAME);
8200 sysfs_remove_file(kobj,
8201 &lustre_attr_track_declares_assert.attr);
8204 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
8205 lu_kmem_fini(ldiskfs_caches);
8208 MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
8209 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
8210 MODULE_VERSION(LUSTRE_VERSION_STRING);
8211 MODULE_LICENSE("GPL");
8213 module_init(osd_init);
8214 module_exit(osd_exit);