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 = osd_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 = osd_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);
1131 /* -ESTALE is returned if inode of OST object doesn't exist */
1132 if (result == -ESTALE &&
1133 fid_is_on_ost(info, dev, fid, OI_CHECK_FLD)) {
1134 GOTO(out, result = 0);
1141 obj->oo_inode = NULL;
1142 /* for later passes through checks, not true on first pass */
1143 if (!IS_ERR_OR_NULL(inode))
1146 inode = osd_iget_check(info, dev, fid, id, trusted);
1147 if (!IS_ERR(inode)) {
1148 obj->oo_inode = inode;
1156 result = PTR_ERR(inode);
1157 if (result == -ENOENT || result == -ESTALE)
1158 GOTO(out, result = 0);
1160 if (result != -EREMCHG)
1165 * We still have chance to get the valid inode: for the
1166 * object which is referenced by remote name entry, the
1167 * object on the local MDT will be linked under the dir
1168 * of "/REMOTE_PARENT_DIR" with its FID string as name.
1170 * We do not know whether the object for the given FID
1171 * is referenced by some remote name entry or not, and
1172 * especially for DNE II, a multiple-linked object may
1173 * have many name entries reside on many MDTs.
1175 * To simplify the operation, OSD will not distinguish
1176 * more, just lookup "/REMOTE_PARENT_DIR". Usually, it
1177 * only happened for the RPC from other MDT during the
1178 * OI scrub, or for the client side RPC with FID only,
1179 * such as FID to path, or from old connected client.
1182 rc1 = osd_lookup_in_remote_parent(info, dev, fid, id);
1186 flags |= SS_AUTO_PARTIAL;
1187 flags &= ~SS_AUTO_FULL;
1192 if (thread_is_running(&scrub->os_thread)) {
1193 if (scrub->os_partial_scan && !scrub->os_in_join)
1196 if (IS_ERR_OR_NULL(inode) || result)
1197 GOTO(out, result = -EINPROGRESS);
1200 LASSERT(obj->oo_inode == inode);
1202 osd_add_oi_cache(info, dev, id, fid);
1203 osd_oii_insert(dev, oic, true);
1207 if (dev->od_auto_scrub_interval == AS_NEVER) {
1209 GOTO(out, result = -EREMCHG);
1212 LASSERT(obj->oo_inode == inode);
1214 osd_add_oi_cache(info, dev, id, fid);
1219 rc1 = osd_scrub_start(env, dev, flags);
1220 LCONSOLE_WARN("%s: trigger OI scrub by RPC for the " DFID" with flags "
1221 "0x%x, rc = %d\n", osd_name(dev), PFID(fid), flags, rc1);
1222 if (rc1 && rc1 != -EALREADY)
1223 GOTO(out, result = -EREMCHG);
1225 if (IS_ERR_OR_NULL(inode) || result)
1226 GOTO(out, result = -EINPROGRESS);
1229 LASSERT(obj->oo_inode == inode);
1231 osd_add_oi_cache(info, dev, id, fid);
1232 osd_oii_insert(dev, oic, true);
1237 if (unlikely(obj->oo_header))
1240 result = osd_check_lma(env, obj);
1244 LASSERTF(id->oii_ino == inode->i_ino &&
1245 id->oii_gen == inode->i_generation,
1246 "locate wrong inode for FID: "DFID", %u/%u => %ld/%u\n",
1247 PFID(fid), id->oii_ino, id->oii_gen,
1248 inode->i_ino, inode->i_generation);
1250 saved_ino = inode->i_ino;
1251 saved_gen = inode->i_generation;
1253 if (unlikely(result == -ENODATA)) {
1255 * If the OI scrub updated the OI mapping by race, it
1256 * must be valid. Trust the inode that has no LMA EA.
1261 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1264 * The OI mapping is still there, the inode is still
1265 * valid. It is just becaues the inode has no LMA EA.
1267 if (saved_ino == id->oii_ino &&
1268 saved_gen == id->oii_gen)
1272 * It is the OI scrub updated the OI mapping by race.
1273 * The new OI mapping must be valid.
1281 * "result == -ENOENT" means that the OI mappinghas been
1282 * removed by race, so the inode belongs to other object.
1284 * Others error can be returned directly.
1286 if (result == -ENOENT) {
1289 obj->oo_inode = NULL;
1294 if (result != -EREMCHG)
1300 * if two OST objects map to the same inode, and inode mode is
1301 * (S_IFREG | S_ISUID | S_ISGID | S_ISVTX | 0666), which means it's
1302 * reserved by precreate, and not written yet, in this case, don't
1303 * set inode for the object whose FID mismatch, so that it can create
1304 * inode and not block precreate.
1306 if (fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) &&
1307 inode->i_mode == (S_IFREG | S_ISUID | S_ISGID | S_ISVTX | 0666)) {
1308 obj->oo_inode = NULL;
1309 GOTO(out, result = 0);
1312 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1314 * "result == -ENOENT" means the cached OI mapping has been removed
1315 * from the OI file by race, above inode belongs to other object.
1317 if (result == -ENOENT) {
1320 obj->oo_inode = NULL;
1321 GOTO(out, result = 0);
1327 if (saved_ino == id->oii_ino && saved_gen == id->oii_gen) {
1333 * It is the OI scrub updated the OI mapping by race.
1334 * The new OI mapping must be valid.
1342 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
1343 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
1345 result = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
1347 if (lma->lma_compat & LMAC_STRIPE_INFO &&
1349 obj->oo_pfid_in_lma = 1;
1350 if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
1352 lu_object_set_agent_entry(&obj->oo_dt.do_lu);
1353 } else if (result != -ENODATA) {
1358 obj->oo_compat_dot_created = 1;
1359 obj->oo_compat_dotdot_created = 1;
1361 if (S_ISDIR(inode->i_mode) &&
1362 (flags & SS_AUTO_PARTIAL || sf->sf_status == SS_SCANNING))
1363 osd_check_lmv(info, dev, inode, oic);
1365 result = osd_attach_jinode(inode);
1370 GOTO(out, result = 0);
1372 LASSERT(!obj->oo_hl_head);
1373 obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
1375 GOTO(out, result = (!obj->oo_hl_head ? -ENOMEM : 0));
1378 if (result || !obj->oo_inode) {
1379 if (!IS_ERR_OR_NULL(inode))
1382 obj->oo_inode = NULL;
1384 fid_zero(&oic->oic_fid);
1387 LINVRNT(osd_invariant(obj));
1392 * Concurrency: shouldn't matter.
1394 static void osd_object_init0(struct osd_object *obj)
1396 LASSERT(obj->oo_inode != NULL);
1397 obj->oo_dt.do_body_ops = &osd_body_ops;
1398 obj->oo_dt.do_lu.lo_header->loh_attr |=
1399 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
1403 * Concurrency: no concurrent access is possible that early in object
1406 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
1407 const struct lu_object_conf *conf)
1409 struct osd_object *obj = osd_obj(l);
1412 LINVRNT(osd_invariant(obj));
1414 if (fid_is_otable_it(&l->lo_header->loh_fid)) {
1415 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
1416 l->lo_header->loh_attr |= LOHA_EXISTS;
1420 result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
1421 obj->oo_dt.do_body_ops = &osd_body_ops_new;
1422 if (result == 0 && obj->oo_inode != NULL) {
1423 struct osd_thread_info *oti = osd_oti_get(env);
1424 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
1426 osd_object_init0(obj);
1427 if (unlikely(obj->oo_header))
1430 result = osd_get_lma(oti, obj->oo_inode,
1431 &oti->oti_obj_dentry, loa);
1434 * Convert LMAI flags to lustre LMA flags
1435 * and cache it to oo_lma_flags
1438 lma_to_lustre_flags(loa->loa_lma.lma_incompat);
1439 } else if (result == -ENODATA) {
1444 LINVRNT(osd_invariant(obj));
1449 * The first part of oxe_buf is xattr name, and is '\0' terminated.
1450 * The left part is for value, binary mode.
1452 struct osd_xattr_entry {
1453 struct list_head oxe_list;
1457 struct rcu_head oxe_rcu;
1461 static int osd_oxc_get(struct osd_object *obj, const char *name,
1464 struct osd_xattr_entry *tmp;
1465 struct osd_xattr_entry *oxe = NULL;
1466 size_t namelen = strlen(name);
1472 list_for_each_entry_rcu(tmp, &obj->oo_xattr_list, oxe_list) {
1473 if (namelen == tmp->oxe_namelen &&
1474 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1481 GOTO(out, rc = -ENOENT);
1483 if (!oxe->oxe_exist)
1484 GOTO(out, rc = -ENODATA);
1487 rc = oxe->oxe_len - sizeof(*oxe) - oxe->oxe_namelen - 1;
1490 if (buf->lb_buf == NULL)
1493 if (buf->lb_len < rc)
1494 GOTO(out, rc = -ERANGE);
1496 memcpy(buf->lb_buf, &oxe->oxe_buf[namelen + 1], rc);
1504 static void osd_oxc_free(struct rcu_head *head)
1506 struct osd_xattr_entry *oxe;
1508 oxe = container_of(head, struct osd_xattr_entry, oxe_rcu);
1509 OBD_FREE(oxe, oxe->oxe_len);
1512 static void osd_oxc_add(struct osd_object *obj, const char *name,
1513 const char *buf, int buflen)
1515 struct osd_xattr_entry *oxe;
1516 struct osd_xattr_entry *old = NULL;
1517 struct osd_xattr_entry *tmp;
1518 size_t namelen = strlen(name);
1519 size_t len = sizeof(*oxe) + namelen + 1 + buflen;
1521 OBD_ALLOC(oxe, len);
1525 INIT_LIST_HEAD(&oxe->oxe_list);
1527 oxe->oxe_namelen = namelen;
1528 memcpy(oxe->oxe_buf, name, namelen);
1530 LASSERT(buf != NULL);
1531 memcpy(oxe->oxe_buf + namelen + 1, buf, buflen);
1532 oxe->oxe_exist = true;
1534 oxe->oxe_exist = false;
1537 /* this should be rarely called, just remove old and add new */
1538 spin_lock(&obj->oo_guard);
1539 list_for_each_entry(tmp, &obj->oo_xattr_list, oxe_list) {
1540 if (namelen == tmp->oxe_namelen &&
1541 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1547 list_replace_rcu(&old->oxe_list, &oxe->oxe_list);
1548 call_rcu(&old->oxe_rcu, osd_oxc_free);
1550 list_add_tail_rcu(&oxe->oxe_list, &obj->oo_xattr_list);
1552 spin_unlock(&obj->oo_guard);
1555 static void osd_oxc_del(struct osd_object *obj, const char *name)
1557 struct osd_xattr_entry *oxe;
1558 size_t namelen = strlen(name);
1560 spin_lock(&obj->oo_guard);
1561 list_for_each_entry(oxe, &obj->oo_xattr_list, oxe_list) {
1562 if (namelen == oxe->oxe_namelen &&
1563 strncmp(name, oxe->oxe_buf, namelen) == 0) {
1564 list_del_rcu(&oxe->oxe_list);
1565 call_rcu(&oxe->oxe_rcu, osd_oxc_free);
1569 spin_unlock(&obj->oo_guard);
1572 static void osd_oxc_fini(struct osd_object *obj)
1574 struct osd_xattr_entry *oxe, *next;
1576 list_for_each_entry_safe(oxe, next, &obj->oo_xattr_list, oxe_list) {
1577 list_del(&oxe->oxe_list);
1578 OBD_FREE(oxe, oxe->oxe_len);
1583 * Concurrency: no concurrent access is possible that late in object
1586 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
1588 struct osd_object *obj = osd_obj(l);
1589 struct lu_object_header *h = obj->oo_header;
1591 LINVRNT(osd_invariant(obj));
1594 dt_object_fini(&obj->oo_dt);
1595 if (obj->oo_hl_head != NULL)
1596 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
1599 lu_object_header_fini(h);
1605 * Concurrency: no concurrent access is possible that late in object
1608 static void osd_index_fini(struct osd_object *o)
1610 struct iam_container *bag;
1612 if (o->oo_dir != NULL) {
1613 bag = &o->oo_dir->od_container;
1614 if (o->oo_inode != NULL) {
1615 if (bag->ic_object == o->oo_inode)
1616 iam_container_fini(bag);
1618 OBD_FREE_PTR(o->oo_dir);
1624 * Concurrency: no concurrent access is possible that late in object
1625 * life-cycle (for all existing callers, that is. New callers have to provide
1626 * their own locking.)
1628 static int osd_inode_unlinked(const struct inode *inode)
1630 return inode->i_nlink == 0;
1634 OSD_TXN_OI_DELETE_CREDITS = 20,
1635 OSD_TXN_INODE_DELETE_CREDITS = 20
1642 #if OSD_THANDLE_STATS
1644 * Set time when the handle is allocated
1646 static void osd_th_alloced(struct osd_thandle *oth)
1648 oth->oth_alloced = ktime_get();
1652 * Set time when the handle started
1654 static void osd_th_started(struct osd_thandle *oth)
1656 oth->oth_started = ktime_get();
1660 * Check whether the we deal with this handle for too long.
1662 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
1663 ktime_t alloced, ktime_t started,
1666 ktime_t now = ktime_get();
1668 LASSERT(dev != NULL);
1670 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
1671 ktime_us_delta(started, alloced));
1672 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
1673 ktime_us_delta(closed, started));
1674 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
1675 ktime_us_delta(now, closed));
1677 if (ktime_before(ktime_add_ns(alloced, 30 * NSEC_PER_SEC), now)) {
1678 CWARN("transaction handle %p was open for too long: now %lld, alloced %lld, started %lld, closed %lld\n",
1679 oth, now, alloced, started, closed);
1680 libcfs_debug_dumpstack(NULL);
1684 #define OSD_CHECK_SLOW_TH(oth, dev, expr) \
1686 ktime_t __closed = ktime_get(); \
1687 ktime_t __alloced = oth->oth_alloced; \
1688 ktime_t __started = oth->oth_started; \
1691 __osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
1694 #else /* OSD_THANDLE_STATS */
1696 #define osd_th_alloced(h) do {} while(0)
1697 #define osd_th_started(h) do {} while(0)
1698 #define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
1700 #endif /* OSD_THANDLE_STATS */
1703 * Concurrency: doesn't access mutable data.
1705 static int osd_param_is_not_sane(const struct osd_device *dev,
1706 const struct thandle *th)
1708 struct osd_thandle *oh = container_of(th, typeof(*oh), ot_super);
1710 return oh->ot_credits > osd_transaction_size(dev);
1714 * Concurrency: shouldn't matter.
1716 static void osd_trans_commit_cb(struct super_block *sb,
1717 struct ldiskfs_journal_cb_entry *jcb, int error)
1719 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
1720 struct thandle *th = &oh->ot_super;
1721 struct lu_device *lud = &th->th_dev->dd_lu_dev;
1722 struct dt_txn_commit_cb *dcb, *tmp;
1724 LASSERT(oh->ot_handle == NULL);
1727 CERROR("transaction @0x%p commit error: %d\n", th, error);
1729 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_DELAY_TRANS, 40);
1730 /* call per-transaction callbacks if any */
1731 list_for_each_entry_safe(dcb, tmp, &oh->ot_commit_dcb_list,
1733 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1734 "commit callback entry: magic=%x name='%s'\n",
1735 dcb->dcb_magic, dcb->dcb_name);
1736 list_del_init(&dcb->dcb_linkage);
1737 dcb->dcb_func(NULL, th, dcb, error);
1740 lu_ref_del_at(&lud->ld_reference, &oh->ot_dev_link, "osd-tx", th);
1747 #ifndef HAVE_SB_START_WRITE
1748 # define sb_start_write(sb) do {} while (0)
1749 # define sb_end_write(sb) do {} while (0)
1752 static struct thandle *osd_trans_create(const struct lu_env *env,
1753 struct dt_device *d)
1755 struct osd_thread_info *oti = osd_oti_get(env);
1756 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1757 struct osd_thandle *oh;
1763 CERROR("%s: someone try to start transaction under "
1764 "readonly mode, should be disabled.\n",
1765 osd_name(osd_dt_dev(d)));
1767 RETURN(ERR_PTR(-EROFS));
1770 /* on pending IO in this thread should left from prev. request */
1771 LASSERT(atomic_read(&iobuf->dr_numreqs) == 0);
1773 sb_start_write(osd_sb(osd_dt_dev(d)));
1775 OBD_ALLOC_GFP(oh, sizeof(*oh), GFP_NOFS);
1777 sb_end_write(osd_sb(osd_dt_dev(d)));
1778 RETURN(ERR_PTR(-ENOMEM));
1781 oh->ot_quota_trans = &oti->oti_quota_trans;
1782 memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
1787 INIT_LIST_HEAD(&oh->ot_commit_dcb_list);
1788 INIT_LIST_HEAD(&oh->ot_stop_dcb_list);
1789 INIT_LIST_HEAD(&oh->ot_trunc_locks);
1792 memset(oti->oti_declare_ops, 0,
1793 sizeof(oti->oti_declare_ops));
1794 memset(oti->oti_declare_ops_cred, 0,
1795 sizeof(oti->oti_declare_ops_cred));
1796 memset(oti->oti_declare_ops_used, 0,
1797 sizeof(oti->oti_declare_ops_used));
1799 oti->oti_ins_cache_depth++;
1804 void osd_trans_dump_creds(const struct lu_env *env, struct thandle *th)
1806 struct osd_thread_info *oti = osd_oti_get(env);
1807 struct osd_thandle *oh;
1809 oh = container_of0(th, struct osd_thandle, ot_super);
1810 LASSERT(oh != NULL);
1812 CWARN(" create: %u/%u/%u, destroy: %u/%u/%u\n",
1813 oti->oti_declare_ops[OSD_OT_CREATE],
1814 oti->oti_declare_ops_cred[OSD_OT_CREATE],
1815 oti->oti_declare_ops_used[OSD_OT_CREATE],
1816 oti->oti_declare_ops[OSD_OT_DESTROY],
1817 oti->oti_declare_ops_cred[OSD_OT_DESTROY],
1818 oti->oti_declare_ops_used[OSD_OT_DESTROY]);
1819 CWARN(" attr_set: %u/%u/%u, xattr_set: %u/%u/%u\n",
1820 oti->oti_declare_ops[OSD_OT_ATTR_SET],
1821 oti->oti_declare_ops_cred[OSD_OT_ATTR_SET],
1822 oti->oti_declare_ops_used[OSD_OT_ATTR_SET],
1823 oti->oti_declare_ops[OSD_OT_XATTR_SET],
1824 oti->oti_declare_ops_cred[OSD_OT_XATTR_SET],
1825 oti->oti_declare_ops_used[OSD_OT_XATTR_SET]);
1826 CWARN(" write: %u/%u/%u, punch: %u/%u/%u, quota %u/%u/%u\n",
1827 oti->oti_declare_ops[OSD_OT_WRITE],
1828 oti->oti_declare_ops_cred[OSD_OT_WRITE],
1829 oti->oti_declare_ops_used[OSD_OT_WRITE],
1830 oti->oti_declare_ops[OSD_OT_PUNCH],
1831 oti->oti_declare_ops_cred[OSD_OT_PUNCH],
1832 oti->oti_declare_ops_used[OSD_OT_PUNCH],
1833 oti->oti_declare_ops[OSD_OT_QUOTA],
1834 oti->oti_declare_ops_cred[OSD_OT_QUOTA],
1835 oti->oti_declare_ops_used[OSD_OT_QUOTA]);
1836 CWARN(" insert: %u/%u/%u, delete: %u/%u/%u\n",
1837 oti->oti_declare_ops[OSD_OT_INSERT],
1838 oti->oti_declare_ops_cred[OSD_OT_INSERT],
1839 oti->oti_declare_ops_used[OSD_OT_INSERT],
1840 oti->oti_declare_ops[OSD_OT_DELETE],
1841 oti->oti_declare_ops_cred[OSD_OT_DELETE],
1842 oti->oti_declare_ops_used[OSD_OT_DELETE]);
1843 CWARN(" ref_add: %u/%u/%u, ref_del: %u/%u/%u\n",
1844 oti->oti_declare_ops[OSD_OT_REF_ADD],
1845 oti->oti_declare_ops_cred[OSD_OT_REF_ADD],
1846 oti->oti_declare_ops_used[OSD_OT_REF_ADD],
1847 oti->oti_declare_ops[OSD_OT_REF_DEL],
1848 oti->oti_declare_ops_cred[OSD_OT_REF_DEL],
1849 oti->oti_declare_ops_used[OSD_OT_REF_DEL]);
1853 * Concurrency: shouldn't matter.
1855 static int osd_trans_start(const struct lu_env *env, struct dt_device *d,
1858 struct osd_thread_info *oti = osd_oti_get(env);
1859 struct osd_device *dev = osd_dt_dev(d);
1861 struct osd_thandle *oh;
1866 LASSERT(current->journal_info == NULL);
1868 oh = container_of0(th, struct osd_thandle, ot_super);
1869 LASSERT(oh != NULL);
1870 LASSERT(oh->ot_handle == NULL);
1872 rc = dt_txn_hook_start(env, d, th);
1876 if (unlikely(osd_param_is_not_sane(dev, th))) {
1877 static unsigned long last_printed;
1878 static int last_credits;
1881 * don't make noise on a tiny testing systems
1882 * actual credits misuse will be caught anyway
1884 if (last_credits != oh->ot_credits &&
1885 time_after(jiffies, last_printed +
1886 msecs_to_jiffies(60 * MSEC_PER_SEC)) &&
1887 osd_transaction_size(dev) > 512) {
1888 CWARN("%s: credits %u > trans_max %u\n", osd_name(dev),
1889 oh->ot_credits, osd_transaction_size(dev));
1890 osd_trans_dump_creds(env, th);
1891 libcfs_debug_dumpstack(NULL);
1892 last_credits = oh->ot_credits;
1893 last_printed = jiffies;
1896 * XXX Limit the credits to 'max_transaction_buffers', and
1897 * let the underlying filesystem to catch the error if
1898 * we really need so many credits.
1900 * This should be removed when we can calculate the
1901 * credits precisely.
1903 oh->ot_credits = osd_transaction_size(dev);
1904 } else if (ldiskfs_track_declares_assert != 0) {
1906 * reserve few credits to prevent an assertion in JBD
1907 * our debugging mechanism will be able to detected
1908 * overuse. this can help to debug single-update
1911 oh->ot_credits += 10;
1912 if (unlikely(osd_param_is_not_sane(dev, th)))
1913 oh->ot_credits = osd_transaction_size(dev);
1916 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_TXN_START))
1917 GOTO(out, rc = -EIO);
1920 * XXX temporary stuff. Some abstraction layer should
1923 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, oh->ot_credits);
1927 LASSERT(oti->oti_txns == 0);
1929 lu_device_get(&d->dd_lu_dev);
1930 lu_ref_add_at(&d->dd_lu_dev.ld_reference, &oh->ot_dev_link,
1941 static int osd_seq_exists(const struct lu_env *env,
1942 struct osd_device *osd, u64 seq)
1944 struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
1945 struct seq_server_site *ss = osd_seq_site(osd);
1950 LASSERT(ss != NULL);
1951 LASSERT(ss->ss_server_fld != NULL);
1953 rc = osd_fld_lookup(env, osd, seq, range);
1956 CERROR("%s: can't lookup FLD sequence %#llx: rc = %d\n",
1957 osd_name(osd), seq, rc);
1961 RETURN(ss->ss_node_id == range->lsr_index);
1964 static void osd_trans_stop_cb(struct osd_thandle *oth, int result)
1966 struct dt_txn_commit_cb *dcb;
1967 struct dt_txn_commit_cb *tmp;
1969 /* call per-transaction stop callbacks if any */
1970 list_for_each_entry_safe(dcb, tmp, &oth->ot_stop_dcb_list,
1972 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1973 "commit callback entry: magic=%x name='%s'\n",
1974 dcb->dcb_magic, dcb->dcb_name);
1975 list_del_init(&dcb->dcb_linkage);
1976 dcb->dcb_func(NULL, &oth->ot_super, dcb, result);
1981 * Concurrency: shouldn't matter.
1983 static int osd_trans_stop(const struct lu_env *env, struct dt_device *dt,
1986 struct osd_thread_info *oti = osd_oti_get(env);
1987 struct osd_thandle *oh;
1988 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1989 struct osd_device *osd = osd_dt_dev(th->th_dev);
1990 struct qsd_instance *qsd = osd_def_qsd(osd);
1991 struct lquota_trans *qtrans;
1992 struct list_head truncates = LIST_HEAD_INIT(truncates);
1993 int rc = 0, remove_agents = 0;
1997 oh = container_of0(th, struct osd_thandle, ot_super);
1999 remove_agents = oh->ot_remove_agents;
2001 qtrans = oh->ot_quota_trans;
2002 oh->ot_quota_trans = NULL;
2004 /* move locks to local list, stop tx, execute truncates */
2005 list_splice(&oh->ot_trunc_locks, &truncates);
2007 if (oh->ot_handle != NULL) {
2010 handle_t *hdl = oh->ot_handle;
2013 * add commit callback
2014 * notice we don't do this in osd_trans_start()
2015 * as underlying transaction can change during truncate
2017 ldiskfs_journal_callback_add(hdl, osd_trans_commit_cb,
2020 LASSERT(oti->oti_txns == 1);
2023 rc = dt_txn_hook_stop(env, th);
2025 CERROR("%s: failed in transaction hook: rc = %d\n",
2028 osd_trans_stop_cb(oh, rc);
2029 /* hook functions might modify th_sync */
2030 hdl->h_sync = th->th_sync;
2032 oh->ot_handle = NULL;
2033 OSD_CHECK_SLOW_TH(oh, osd, rc2 = ldiskfs_journal_stop(hdl));
2035 CERROR("%s: failed to stop transaction: rc = %d\n",
2036 osd_name(osd), rc2);
2040 osd_process_truncates(&truncates);
2042 osd_trans_stop_cb(oh, th->th_result);
2046 osd_trunc_unlock_all(&truncates);
2048 /* inform the quota slave device that the transaction is stopping */
2049 qsd_op_end(env, qsd, qtrans);
2052 * as we want IO to journal and data IO be concurrent, we don't block
2053 * awaiting data IO completion in osd_do_bio(), instead we wait here
2054 * once transaction is submitted to the journal. all reqular requests
2055 * don't do direct IO (except read/write), thus this wait_event becomes
2058 * IMPORTANT: we have to wait till any IO submited by the thread is
2059 * completed otherwise iobuf may be corrupted by different request
2061 wait_event(iobuf->dr_wait,
2062 atomic_read(&iobuf->dr_numreqs) == 0);
2063 osd_fini_iobuf(osd, iobuf);
2065 rc = iobuf->dr_error;
2067 if (unlikely(remove_agents != 0))
2068 osd_process_scheduled_agent_removals(env, osd);
2070 oti->oti_ins_cache_depth--;
2071 /* reset OI cache for safety */
2072 if (oti->oti_ins_cache_depth == 0)
2073 oti->oti_ins_cache_used = 0;
2075 sb_end_write(osd_sb(osd));
2080 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
2082 struct osd_thandle *oh = container_of0(th, struct osd_thandle,
2085 LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
2086 LASSERT(&dcb->dcb_func != NULL);
2087 if (dcb->dcb_flags & DCB_TRANS_STOP)
2088 list_add(&dcb->dcb_linkage, &oh->ot_stop_dcb_list);
2090 list_add(&dcb->dcb_linkage, &oh->ot_commit_dcb_list);
2096 * Called just before object is freed. Releases all resources except for
2097 * object itself (that is released by osd_object_free()).
2099 * Concurrency: no concurrent access is possible that late in object
2102 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
2104 struct osd_object *obj = osd_obj(l);
2105 struct qsd_instance *qsd = osd_def_qsd(osd_obj2dev(obj));
2106 struct inode *inode = obj->oo_inode;
2111 LINVRNT(osd_invariant(obj));
2114 * If object is unlinked remove fid->ino mapping from object index.
2117 osd_index_fini(obj);
2122 uid = i_uid_read(inode);
2123 gid = i_gid_read(inode);
2124 projid = i_projid_read(inode);
2126 obj->oo_inode = NULL;
2129 /* do not rebalance quota if the caller needs to release memory
2130 * otherwise qsd_refresh_usage() may went into a new ldiskfs
2131 * transaction and risk to deadlock - LU-12178 */
2132 if (current->flags & (PF_MEMALLOC | PF_KSWAPD))
2135 if (!obj->oo_header && qsd) {
2136 struct osd_thread_info *info = osd_oti_get(env);
2137 struct lquota_id_info *qi = &info->oti_qi;
2139 /* Release granted quota to master if necessary */
2140 qi->lqi_id.qid_uid = uid;
2141 qsd_op_adjust(env, qsd, &qi->lqi_id, USRQUOTA);
2143 qi->lqi_id.qid_uid = gid;
2144 qsd_op_adjust(env, qsd, &qi->lqi_id, GRPQUOTA);
2146 qi->lqi_id.qid_uid = projid;
2147 qsd_op_adjust(env, qsd, &qi->lqi_id, PRJQUOTA);
2152 * Concurrency: ->loo_object_release() is called under site spin-lock.
2154 static void osd_object_release(const struct lu_env *env,
2155 struct lu_object *l)
2157 struct osd_object *o = osd_obj(l);
2160 * nobody should be releasing a non-destroyed object with nlink=0
2161 * the API allows this, but ldiskfs doesn't like and then report
2162 * this inode as deleted
2164 LASSERT(!(o->oo_destroyed == 0 && o->oo_inode &&
2165 o->oo_inode->i_nlink == 0));
2169 * Concurrency: shouldn't matter.
2171 static int osd_object_print(const struct lu_env *env, void *cookie,
2172 lu_printer_t p, const struct lu_object *l)
2174 struct osd_object *o = osd_obj(l);
2175 struct iam_descr *d;
2177 if (o->oo_dir != NULL)
2178 d = o->oo_dir->od_container.ic_descr;
2181 return (*p)(env, cookie,
2182 LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
2184 o->oo_inode ? o->oo_inode->i_ino : 0UL,
2185 o->oo_inode ? o->oo_inode->i_generation : 0,
2186 d ? d->id_ops->id_name : "plain");
2190 * Concurrency: shouldn't matter.
2192 int osd_statfs(const struct lu_env *env, struct dt_device *d,
2193 struct obd_statfs *sfs)
2195 struct osd_device *osd = osd_dt_dev(d);
2196 struct super_block *sb = osd_sb(osd);
2197 struct kstatfs *ksfs;
2201 if (unlikely(osd->od_mnt == NULL))
2202 return -EINPROGRESS;
2204 /* osd_lproc.c call this without env, allocate ksfs for that case */
2205 if (unlikely(env == NULL)) {
2206 OBD_ALLOC_PTR(ksfs);
2210 ksfs = &osd_oti_get(env)->oti_ksfs;
2213 result = sb->s_op->statfs(sb->s_root, ksfs);
2217 statfs_pack(sfs, ksfs);
2218 if (unlikely(sb->s_flags & MS_RDONLY))
2219 sfs->os_state |= OS_STATE_READONLY;
2221 sfs->os_state |= osd->od_nonrotational ? OS_STATE_NONROT : 0;
2223 if (ldiskfs_has_feature_extents(sb))
2224 sfs->os_maxbytes = sb->s_maxbytes;
2226 sfs->os_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2229 * Reserve some space so to avoid fragmenting the filesystem too much.
2230 * Fragmentation not only impacts performance, but can also increase
2231 * metadata overhead significantly, causing grant calculation to be
2234 * Reserve 0.78% of total space, at least 8MB for small filesystems.
2236 CLASSERT(OSD_STATFS_RESERVED > LDISKFS_MAX_BLOCK_SIZE);
2237 reserved = OSD_STATFS_RESERVED >> sb->s_blocksize_bits;
2238 if (likely(sfs->os_blocks >= reserved << OSD_STATFS_RESERVED_SHIFT))
2239 reserved = sfs->os_blocks >> OSD_STATFS_RESERVED_SHIFT;
2241 sfs->os_blocks -= reserved;
2242 sfs->os_bfree -= min(reserved, sfs->os_bfree);
2243 sfs->os_bavail -= min(reserved, sfs->os_bavail);
2246 if (unlikely(env == NULL))
2252 * Estimate space needed for file creations. We assume the largest filename
2253 * which is 2^64 - 1, hence a filename of 20 chars.
2254 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
2256 #ifdef __LDISKFS_DIR_REC_LEN
2257 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
2259 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
2263 * Concurrency: doesn't access mutable data.
2265 static void osd_conf_get(const struct lu_env *env,
2266 const struct dt_device *dev,
2267 struct dt_device_param *param)
2269 struct osd_device *d = osd_dt_dev(dev);
2270 struct super_block *sb = osd_sb(d);
2271 struct blk_integrity *bi = bdev_get_integrity(sb->s_bdev);
2276 * XXX should be taken from not-yet-existing fs abstraction layer.
2278 param->ddp_max_name_len = LDISKFS_NAME_LEN;
2279 param->ddp_max_nlink = LDISKFS_LINK_MAX;
2280 param->ddp_symlink_max = sb->s_blocksize;
2281 param->ddp_mount_type = LDD_MT_LDISKFS;
2282 if (ldiskfs_has_feature_extents(sb))
2283 param->ddp_maxbytes = sb->s_maxbytes;
2285 param->ddp_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2287 * inode are statically allocated, so per-inode space consumption
2288 * is the space consumed by the directory entry
2290 param->ddp_inodespace = PER_OBJ_USAGE;
2292 * EXT_INIT_MAX_LEN is the theoretical maximum extent size (32k blocks
2293 * is 128MB) which is unlikely to be hit in real life. Report a smaller
2294 * maximum length to not under-count the actual number of extents
2295 * needed for writing a file if there are sub-optimal block allocations.
2297 param->ddp_max_extent_blks = EXT_INIT_MAX_LEN >> 1;
2298 /* worst-case extent insertion metadata overhead */
2299 param->ddp_extent_tax = 6 * LDISKFS_BLOCK_SIZE(sb);
2300 param->ddp_mntopts = 0;
2301 if (test_opt(sb, XATTR_USER))
2302 param->ddp_mntopts |= MNTOPT_USERXATTR;
2303 if (test_opt(sb, POSIX_ACL))
2304 param->ddp_mntopts |= MNTOPT_ACL;
2307 * LOD might calculate the max stripe count based on max_ea_size,
2308 * so we need take account in the overhead as well,
2309 * xattr_header + magic + xattr_entry_head
2311 ea_overhead = sizeof(struct ldiskfs_xattr_header) + sizeof(__u32) +
2312 LDISKFS_XATTR_LEN(XATTR_NAME_MAX_LEN);
2314 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
2315 if (ldiskfs_has_feature_ea_inode(sb))
2316 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE -
2320 param->ddp_max_ea_size = sb->s_blocksize - ea_overhead;
2322 if (param->ddp_max_ea_size > OBD_MAX_EA_SIZE - ea_overhead)
2323 param->ddp_max_ea_size = OBD_MAX_EA_SIZE - ea_overhead;
2326 * Preferred RPC size for efficient disk IO. 4MB shows good
2327 * all-around performance for ldiskfs, but use bigalloc chunk size
2328 * by default if larger.
2330 #if defined(LDISKFS_CLUSTER_SIZE)
2331 if (LDISKFS_CLUSTER_SIZE(sb) > DT_DEF_BRW_SIZE)
2332 param->ddp_brw_size = LDISKFS_CLUSTER_SIZE(sb);
2335 param->ddp_brw_size = DT_DEF_BRW_SIZE;
2337 param->ddp_t10_cksum_type = 0;
2339 unsigned short interval = blk_integrity_interval(bi);
2340 name = blk_integrity_name(bi);
2348 if (strncmp(name, "T10-DIF-TYPE",
2349 sizeof("T10-DIF-TYPE") - 1) == 0) {
2350 /* also skip "1/3-" at end */
2351 const int type_off = sizeof("T10-DIF-TYPE.");
2352 char type_number = name[type_off - 2];
2354 if (interval != 512 && interval != 4096) {
2355 CERROR("%s: unsupported T10PI sector size %u\n",
2356 d->od_svname, interval);
2357 } else if (type_number != '1' && type_number != '3') {
2358 CERROR("%s: unsupported T10PI type %s\n",
2359 d->od_svname, name);
2360 } else if (strcmp(name + type_off, "CRC") == 0) {
2361 d->od_t10_type = type_number == '1' ?
2362 OSD_T10_TYPE1_CRC : OSD_T10_TYPE3_CRC;
2363 param->ddp_t10_cksum_type = interval == 512 ?
2364 OBD_CKSUM_T10CRC512 :
2366 } else if (strcmp(name + type_off, "IP") == 0) {
2367 d->od_t10_type = type_number == '1' ?
2368 OSD_T10_TYPE1_IP : OSD_T10_TYPE3_IP;
2369 param->ddp_t10_cksum_type = interval == 512 ?
2370 OBD_CKSUM_T10IP512 :
2373 CERROR("%s: unsupported checksum type of "
2375 d->od_svname, name);
2379 CERROR("%s: unsupported T10PI type '%s'",
2380 d->od_svname, name);
2385 static struct super_block *osd_mnt_sb_get(const struct dt_device *d)
2387 return osd_sb(osd_dt_dev(d));
2391 * Concurrency: shouldn't matter.
2393 static int osd_sync(const struct lu_env *env, struct dt_device *d)
2396 struct super_block *s = osd_sb(osd_dt_dev(d));
2399 down_read(&s->s_umount);
2400 rc = s->s_op->sync_fs(s, 1);
2401 up_read(&s->s_umount);
2403 CDEBUG(D_CACHE, "%s: synced OSD: rc = %d\n", osd_dt_dev(d)->od_svname,
2410 * Start commit for OSD device.
2412 * An implementation of dt_commit_async method for OSD device.
2413 * Asychronously starts underlayng fs sync and thereby a transaction
2416 * \param env environment
2417 * \param d dt device
2419 * \see dt_device_operations
2421 static int osd_commit_async(const struct lu_env *env,
2422 struct dt_device *d)
2424 struct super_block *s = osd_sb(osd_dt_dev(d));
2429 CDEBUG(D_HA, "%s: async commit OSD\n", osd_dt_dev(d)->od_svname);
2430 down_read(&s->s_umount);
2431 rc = s->s_op->sync_fs(s, 0);
2432 up_read(&s->s_umount);
2437 /* Our own copy of the set readonly functions if present, or NU if not. */
2438 static int (*priv_dev_set_rdonly)(struct block_device *bdev);
2439 static int (*priv_dev_check_rdonly)(struct block_device *bdev);
2440 /* static int (*priv_dev_clear_rdonly)(struct block_device *bdev); */
2443 * Concurrency: shouldn't matter.
2445 static int osd_ro(const struct lu_env *env, struct dt_device *d)
2447 struct super_block *sb = osd_sb(osd_dt_dev(d));
2448 struct block_device *dev = sb->s_bdev;
2449 int rc = -EOPNOTSUPP;
2453 if (priv_dev_set_rdonly) {
2454 struct block_device *jdev = LDISKFS_SB(sb)->journal_bdev;
2457 CERROR("*** setting %s read-only ***\n",
2458 osd_dt_dev(d)->od_svname);
2460 if (sb->s_op->freeze_fs) {
2461 rc = sb->s_op->freeze_fs(sb);
2466 if (jdev && (jdev != dev)) {
2467 CDEBUG(D_IOCTL | D_HA, "set journal dev %lx rdonly\n",
2469 priv_dev_set_rdonly(jdev);
2471 CDEBUG(D_IOCTL | D_HA, "set dev %lx rdonly\n", (long)dev);
2472 priv_dev_set_rdonly(dev);
2474 if (sb->s_op->unfreeze_fs)
2475 sb->s_op->unfreeze_fs(sb);
2480 CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
2481 osd_dt_dev(d)->od_svname, (long)dev, rc);
2487 * Note: we do not count into QUOTA here.
2488 * If we mount with --data_journal we may need more.
2490 const int osd_dto_credits_noquota[DTO_NR] = {
2493 * INDEX_EXTRA_TRANS_BLOCKS(8) +
2494 * SINGLEDATA_TRANS_BLOCKS(8)
2495 * XXX Note: maybe iam need more, since iam have more level than
2498 [DTO_INDEX_INSERT] = 16,
2501 * just modify a single entry, probably merge few within a block
2503 [DTO_INDEX_DELETE] = 1,
2507 [DTO_INDEX_UPDATE] = 16,
2509 * 4(inode, inode bits, groups, GDT)
2510 * notice: OI updates are counted separately with DTO_INDEX_INSERT
2512 [DTO_OBJECT_CREATE] = 4,
2514 * 4(inode, inode bits, groups, GDT)
2515 * notice: OI updates are counted separately with DTO_INDEX_DELETE
2517 [DTO_OBJECT_DELETE] = 4,
2519 * Attr set credits (inode)
2521 [DTO_ATTR_SET_BASE] = 1,
2523 * Xattr set. The same as xattr of EXT3.
2524 * DATA_TRANS_BLOCKS(14)
2525 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
2526 * are also counted in. Do not know why?
2528 [DTO_XATTR_SET] = 14,
2530 * credits for inode change during write.
2532 [DTO_WRITE_BASE] = 3,
2534 * credits for single block write.
2536 [DTO_WRITE_BLOCK] = 14,
2538 * Attr set credits for chown.
2539 * This is extra credits for setattr, and it is null without quota
2541 [DTO_ATTR_SET_CHOWN] = 0
2544 static const struct dt_device_operations osd_dt_ops = {
2545 .dt_root_get = osd_root_get,
2546 .dt_statfs = osd_statfs,
2547 .dt_trans_create = osd_trans_create,
2548 .dt_trans_start = osd_trans_start,
2549 .dt_trans_stop = osd_trans_stop,
2550 .dt_trans_cb_add = osd_trans_cb_add,
2551 .dt_conf_get = osd_conf_get,
2552 .dt_mnt_sb_get = osd_mnt_sb_get,
2553 .dt_sync = osd_sync,
2555 .dt_commit_async = osd_commit_async,
2558 static void osd_read_lock(const struct lu_env *env, struct dt_object *dt,
2561 struct osd_object *obj = osd_dt_obj(dt);
2562 struct osd_thread_info *oti = osd_oti_get(env);
2564 LINVRNT(osd_invariant(obj));
2566 LASSERT(obj->oo_owner != env);
2567 down_read_nested(&obj->oo_sem, role);
2569 LASSERT(obj->oo_owner == NULL);
2573 static void osd_write_lock(const struct lu_env *env, struct dt_object *dt,
2576 struct osd_object *obj = osd_dt_obj(dt);
2577 struct osd_thread_info *oti = osd_oti_get(env);
2579 LINVRNT(osd_invariant(obj));
2581 LASSERT(obj->oo_owner != env);
2582 down_write_nested(&obj->oo_sem, role);
2584 LASSERT(obj->oo_owner == NULL);
2585 obj->oo_owner = env;
2589 static void osd_read_unlock(const struct lu_env *env, struct dt_object *dt)
2591 struct osd_object *obj = osd_dt_obj(dt);
2592 struct osd_thread_info *oti = osd_oti_get(env);
2594 LINVRNT(osd_invariant(obj));
2596 LASSERT(oti->oti_r_locks > 0);
2598 up_read(&obj->oo_sem);
2601 static void osd_write_unlock(const struct lu_env *env, struct dt_object *dt)
2603 struct osd_object *obj = osd_dt_obj(dt);
2604 struct osd_thread_info *oti = osd_oti_get(env);
2606 LINVRNT(osd_invariant(obj));
2608 LASSERT(obj->oo_owner == env);
2609 LASSERT(oti->oti_w_locks > 0);
2611 obj->oo_owner = NULL;
2612 up_write(&obj->oo_sem);
2615 static int osd_write_locked(const struct lu_env *env, struct dt_object *dt)
2617 struct osd_object *obj = osd_dt_obj(dt);
2619 LINVRNT(osd_invariant(obj));
2621 return obj->oo_owner == env;
2624 static void osd_inode_getattr(const struct lu_env *env,
2625 struct inode *inode, struct lu_attr *attr)
2627 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
2628 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
2629 LA_PROJID | LA_FLAGS | LA_NLINK | LA_RDEV |
2630 LA_BLKSIZE | LA_TYPE;
2632 attr->la_atime = inode->i_atime.tv_sec;
2633 attr->la_mtime = inode->i_mtime.tv_sec;
2634 attr->la_ctime = inode->i_ctime.tv_sec;
2635 attr->la_mode = inode->i_mode;
2636 attr->la_size = i_size_read(inode);
2637 attr->la_blocks = inode->i_blocks;
2638 attr->la_uid = i_uid_read(inode);
2639 attr->la_gid = i_gid_read(inode);
2640 attr->la_projid = i_projid_read(inode);
2641 attr->la_flags = ll_inode_to_ext_flags(inode->i_flags);
2642 attr->la_nlink = inode->i_nlink;
2643 attr->la_rdev = inode->i_rdev;
2644 attr->la_blksize = 1 << inode->i_blkbits;
2645 attr->la_blkbits = inode->i_blkbits;
2647 * Ext4 did not transfer inherit flags from raw inode
2648 * to inode flags, and ext4 internally test raw inode
2649 * @i_flags directly. Instead of patching ext4, we do it here.
2651 if (LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL)
2652 attr->la_flags |= LUSTRE_PROJINHERIT_FL;
2655 static int osd_attr_get(const struct lu_env *env, struct dt_object *dt,
2656 struct lu_attr *attr)
2658 struct osd_object *obj = osd_dt_obj(dt);
2660 if (unlikely(!dt_object_exists(dt)))
2662 if (unlikely(obj->oo_destroyed))
2665 LASSERT(!dt_object_remote(dt));
2666 LINVRNT(osd_invariant(obj));
2668 spin_lock(&obj->oo_guard);
2669 osd_inode_getattr(env, obj->oo_inode, attr);
2670 if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL) {
2671 attr->la_valid |= LA_FLAGS;
2672 attr->la_flags |= LUSTRE_ORPHAN_FL;
2674 spin_unlock(&obj->oo_guard);
2679 static int osd_declare_attr_qid(const struct lu_env *env,
2680 struct osd_object *obj,
2681 struct osd_thandle *oh, long long bspace,
2682 qid_t old_id, qid_t new_id, bool enforce,
2683 unsigned int type, bool ignore_edquot)
2686 struct osd_thread_info *info = osd_oti_get(env);
2687 struct lquota_id_info *qi = &info->oti_qi;
2689 qi->lqi_type = type;
2690 /* inode accounting */
2691 qi->lqi_is_blk = false;
2693 /* one more inode for the new id ... */
2694 qi->lqi_id.qid_uid = new_id;
2696 /* Reserve credits for the new id */
2697 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
2698 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2703 /* and one less inode for the current id */
2704 qi->lqi_id.qid_uid = old_id;
2706 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2707 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2712 /* block accounting */
2713 qi->lqi_is_blk = true;
2715 /* more blocks for the new id ... */
2716 qi->lqi_id.qid_uid = new_id;
2717 qi->lqi_space = bspace;
2719 * Credits for the new uid has been reserved, re-use "obj"
2720 * to save credit reservation.
2722 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2723 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2728 /* and finally less blocks for the current uid */
2729 qi->lqi_id.qid_uid = old_id;
2730 qi->lqi_space = -bspace;
2731 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2732 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2738 static int osd_declare_attr_set(const struct lu_env *env,
2739 struct dt_object *dt,
2740 const struct lu_attr *attr,
2741 struct thandle *handle)
2743 struct osd_thandle *oh;
2744 struct osd_object *obj;
2753 LASSERT(dt != NULL);
2754 LASSERT(handle != NULL);
2756 obj = osd_dt_obj(dt);
2757 LASSERT(osd_invariant(obj));
2759 oh = container_of0(handle, struct osd_thandle, ot_super);
2760 LASSERT(oh->ot_handle == NULL);
2762 osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
2763 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2765 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
2766 osd_dto_credits_noquota[DTO_XATTR_SET]);
2768 if (attr == NULL || obj->oo_inode == NULL)
2771 bspace = obj->oo_inode->i_blocks << 9;
2772 bspace = toqb(bspace);
2775 * Changing ownership is always preformed by super user, it should not
2776 * fail with EDQUOT unless required explicitly.
2778 * We still need to call the osd_declare_qid() to calculate the journal
2779 * credits for updating quota accounting files and to trigger quota
2780 * space adjustment once the operation is completed.
2782 if (attr->la_valid & LA_UID || attr->la_valid & LA_GID) {
2783 bool ignore_edquot = !(attr->la_flags & LUSTRE_SET_SYNC_FL);
2786 CDEBUG(D_QUOTA, "%s: enforce quota on UID %u, GID %u"
2787 "(the quota space is %lld)\n",
2788 obj->oo_inode->i_sb->s_id, attr->la_uid,
2789 attr->la_gid, bspace);
2792 uid = i_uid_read(obj->oo_inode);
2793 enforce = (attr->la_valid & LA_UID) && (attr->la_uid != uid);
2794 rc = osd_declare_attr_qid(env, obj, oh, bspace, uid,
2795 attr->la_uid, enforce, USRQUOTA,
2800 gid = i_gid_read(obj->oo_inode);
2801 enforce = (attr->la_valid & LA_GID) && (attr->la_gid != gid);
2802 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2803 i_gid_read(obj->oo_inode),
2804 attr->la_gid, enforce, GRPQUOTA,
2810 #ifdef HAVE_PROJECT_QUOTA
2811 if (attr->la_valid & LA_PROJID) {
2812 __u32 projid = i_projid_read(obj->oo_inode);
2814 enforce = (attr->la_valid & LA_PROJID) &&
2815 (attr->la_projid != projid);
2816 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2817 (qid_t)projid, (qid_t)attr->la_projid,
2818 enforce, PRJQUOTA, true);
2826 static int osd_inode_setattr(const struct lu_env *env,
2827 struct inode *inode, const struct lu_attr *attr)
2829 __u64 bits = attr->la_valid;
2831 /* Only allow set size for regular file */
2832 if (!S_ISREG(inode->i_mode))
2833 bits &= ~(LA_SIZE | LA_BLOCKS);
2838 if (bits & LA_ATIME)
2839 inode->i_atime = osd_inode_time(inode, attr->la_atime);
2840 if (bits & LA_CTIME)
2841 inode->i_ctime = osd_inode_time(inode, attr->la_ctime);
2842 if (bits & LA_MTIME)
2843 inode->i_mtime = osd_inode_time(inode, attr->la_mtime);
2844 if (bits & LA_SIZE) {
2845 spin_lock(&inode->i_lock);
2846 LDISKFS_I(inode)->i_disksize = attr->la_size;
2847 i_size_write(inode, attr->la_size);
2848 spin_unlock(&inode->i_lock);
2852 * OSD should not change "i_blocks" which is used by quota.
2853 * "i_blocks" should be changed by ldiskfs only.
2856 inode->i_mode = (inode->i_mode & S_IFMT) |
2857 (attr->la_mode & ~S_IFMT);
2859 i_uid_write(inode, attr->la_uid);
2861 i_gid_write(inode, attr->la_gid);
2862 if (bits & LA_PROJID)
2863 i_projid_write(inode, attr->la_projid);
2864 if (bits & LA_NLINK)
2865 set_nlink(inode, attr->la_nlink);
2867 inode->i_rdev = attr->la_rdev;
2869 if (bits & LA_FLAGS) {
2870 /* always keep S_NOCMTIME */
2871 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
2874 * Ext4 did not transfer inherit flags from
2875 * @inode->i_flags to raw inode i_flags when writing
2876 * flags, we do it explictly here.
2878 if (attr->la_flags & LUSTRE_PROJINHERIT_FL)
2879 LDISKFS_I(inode)->i_flags |= LUSTRE_PROJINHERIT_FL;
2881 LDISKFS_I(inode)->i_flags &= ~LUSTRE_PROJINHERIT_FL;
2886 #ifdef HAVE_PROJECT_QUOTA
2887 static int osd_transfer_project(struct inode *inode, __u32 projid)
2889 struct super_block *sb = inode->i_sb;
2890 struct ldiskfs_inode_info *ei = LDISKFS_I(inode);
2893 struct ldiskfs_iloc iloc;
2894 struct ldiskfs_inode *raw_inode;
2895 struct dquot *transfer_to[LDISKFS_MAXQUOTAS] = { };
2897 if (!ldiskfs_has_feature_project(sb)) {
2898 LASSERT(__kprojid_val(LDISKFS_I(inode)->i_projid)
2899 == LDISKFS_DEF_PROJID);
2900 if (projid != LDISKFS_DEF_PROJID)
2906 if (LDISKFS_INODE_SIZE(sb) <= LDISKFS_GOOD_OLD_INODE_SIZE)
2909 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
2910 if (projid_eq(kprojid, LDISKFS_I(inode)->i_projid))
2913 err = ldiskfs_get_inode_loc(inode, &iloc);
2917 raw_inode = ldiskfs_raw_inode(&iloc);
2918 if (!LDISKFS_FITS_IN_INODE(raw_inode, ei, i_projid)) {
2925 dquot_initialize(inode);
2926 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
2927 if (transfer_to[PRJQUOTA]) {
2928 err = __dquot_transfer(inode, transfer_to);
2929 dqput(transfer_to[PRJQUOTA]);
2938 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
2942 if ((attr->la_valid & LA_UID && attr->la_uid != i_uid_read(inode)) ||
2943 (attr->la_valid & LA_GID && attr->la_gid != i_gid_read(inode))) {
2946 ll_vfs_dq_init(inode);
2948 if (attr->la_valid & LA_UID)
2949 iattr.ia_valid |= ATTR_UID;
2950 if (attr->la_valid & LA_GID)
2951 iattr.ia_valid |= ATTR_GID;
2952 iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
2953 iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
2955 rc = ll_vfs_dq_transfer(inode, &iattr);
2957 CERROR("%s: quota transfer failed: rc = %d. Is quota "
2958 "enforcement enabled on the ldiskfs "
2959 "filesystem?\n", inode->i_sb->s_id, rc);
2964 /* Handle project id transfer here properly */
2965 if (attr->la_valid & LA_PROJID &&
2966 attr->la_projid != i_projid_read(inode)) {
2967 #ifdef HAVE_PROJECT_QUOTA
2968 rc = osd_transfer_project(inode, attr->la_projid);
2973 CERROR("%s: quota transfer failed: rc = %d. Is project "
2974 "enforcement enabled on the ldiskfs "
2975 "filesystem?\n", inode->i_sb->s_id, rc);
2982 static int osd_attr_set(const struct lu_env *env,
2983 struct dt_object *dt,
2984 const struct lu_attr *attr,
2985 struct thandle *handle)
2987 struct osd_object *obj = osd_dt_obj(dt);
2988 struct inode *inode;
2991 if (!dt_object_exists(dt))
2994 LASSERT(handle != NULL);
2995 LASSERT(!dt_object_remote(dt));
2996 LASSERT(osd_invariant(obj));
2998 osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
3000 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING) &&
3001 !osd_obj2dev(obj)->od_is_ost) {
3002 struct osd_thread_info *oti = osd_oti_get(env);
3003 const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
3004 struct lu_fid *fid1 = &oti->oti_fid;
3005 struct osd_inode_id *id = &oti->oti_id;
3006 struct iam_path_descr *ipd;
3007 struct iam_container *bag;
3008 struct osd_thandle *oh;
3011 fid_cpu_to_be(fid1, fid0);
3012 memset(id, 1, sizeof(*id));
3013 bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
3014 fid0)->oi_dir.od_container;
3015 ipd = osd_idx_ipd_get(env, bag);
3016 if (unlikely(ipd == NULL))
3019 oh = container_of0(handle, struct osd_thandle, ot_super);
3020 rc = iam_update(oh->ot_handle, bag,
3021 (const struct iam_key *)fid1,
3022 (const struct iam_rec *)id, ipd);
3023 osd_ipd_put(env, bag, ipd);
3024 return(rc > 0 ? 0 : rc);
3027 inode = obj->oo_inode;
3029 rc = osd_quota_transfer(inode, attr);
3033 spin_lock(&obj->oo_guard);
3034 rc = osd_inode_setattr(env, inode, attr);
3035 spin_unlock(&obj->oo_guard);
3039 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3041 if (!(attr->la_valid & LA_FLAGS))
3044 /* Let's check if there are extra flags need to be set into LMA */
3045 if (attr->la_flags & LUSTRE_LMA_FL_MASKS) {
3046 struct osd_thread_info *info = osd_oti_get(env);
3047 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
3049 LASSERT(!obj->oo_pfid_in_lma);
3051 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
3052 &info->oti_ost_attrs);
3056 lma->lma_incompat |=
3057 lustre_to_lma_flags(attr->la_flags);
3058 lustre_lma_swab(lma);
3059 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA,
3060 lma, sizeof(*lma), XATTR_REPLACE);
3062 struct osd_device *osd = osd_obj2dev(obj);
3064 CWARN("%s: set "DFID" lma flags %u failed: rc = %d\n",
3065 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)),
3066 lma->lma_incompat, rc);
3069 attr->la_flags & LUSTRE_LMA_FL_MASKS;
3071 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
3074 osd_trans_exec_check(env, handle, OSD_OT_ATTR_SET);
3079 static struct dentry *osd_child_dentry_get(const struct lu_env *env,
3080 struct osd_object *obj,
3081 const char *name, const int namelen)
3083 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
3086 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
3087 umode_t mode, struct dt_allocation_hint *hint,
3088 struct thandle *th, struct lu_attr *attr)
3091 struct osd_device *osd = osd_obj2dev(obj);
3092 struct osd_thandle *oth;
3093 struct dt_object *parent = NULL;
3094 struct inode *inode;
3095 uid_t owner[2] = {0, 0};
3097 if (attr->la_valid & LA_UID)
3098 owner[0] = attr->la_uid;
3099 if (attr->la_valid & LA_GID)
3100 owner[1] = attr->la_gid;
3102 LINVRNT(osd_invariant(obj));
3103 LASSERT(obj->oo_inode == NULL);
3104 LASSERT(obj->oo_hl_head == NULL);
3106 if (S_ISDIR(mode) && ldiskfs_pdo) {
3108 ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
3109 if (obj->oo_hl_head == NULL)
3113 oth = container_of(th, struct osd_thandle, ot_super);
3114 LASSERT(oth->ot_handle->h_transaction != NULL);
3116 if (hint != NULL && hint->dah_parent != NULL &&
3117 !dt_object_remote(hint->dah_parent))
3118 parent = hint->dah_parent;
3120 inode = ldiskfs_create_inode(oth->ot_handle,
3121 parent ? osd_dt_obj(parent)->oo_inode :
3122 osd_sb(osd)->s_root->d_inode,
3124 if (!IS_ERR(inode)) {
3125 /* Do not update file c/mtime in ldiskfs. */
3126 inode->i_flags |= S_NOCMTIME;
3129 * For new created object, it must be consistent,
3130 * and it is unnecessary to scrub against it.
3132 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
3134 obj->oo_inode = inode;
3137 if (obj->oo_hl_head != NULL) {
3138 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
3139 obj->oo_hl_head = NULL;
3141 result = PTR_ERR(inode);
3143 LINVRNT(osd_invariant(obj));
3151 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
3152 struct lu_attr *attr,
3153 struct dt_allocation_hint *hint,
3154 struct dt_object_format *dof,
3158 struct osd_thandle *oth;
3159 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX | S_ISGID));
3161 LASSERT(S_ISDIR(attr->la_mode));
3163 oth = container_of(th, struct osd_thandle, ot_super);
3164 LASSERT(oth->ot_handle->h_transaction != NULL);
3165 result = osd_mkfile(info, obj, mode, hint, th, attr);
3170 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
3171 struct lu_attr *attr,
3172 struct dt_allocation_hint *hint,
3173 struct dt_object_format *dof,
3177 struct osd_thandle *oth;
3178 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
3180 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
3182 LASSERT(S_ISREG(attr->la_mode));
3184 oth = container_of(th, struct osd_thandle, ot_super);
3185 LASSERT(oth->ot_handle->h_transaction != NULL);
3187 result = osd_mkfile(info, obj, mode, hint, th, attr);
3189 LASSERT(obj->oo_inode != NULL);
3190 if (feat->dif_flags & DT_IND_VARKEY)
3191 result = iam_lvar_create(obj->oo_inode,
3192 feat->dif_keysize_max,
3194 feat->dif_recsize_max,
3197 result = iam_lfix_create(obj->oo_inode,
3198 feat->dif_keysize_max,
3200 feat->dif_recsize_max,
3206 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
3207 struct lu_attr *attr,
3208 struct dt_allocation_hint *hint,
3209 struct dt_object_format *dof,
3212 LASSERT(S_ISREG(attr->la_mode));
3213 return osd_mkfile(info, obj, (attr->la_mode &
3214 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th,
3218 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
3219 struct lu_attr *attr,
3220 struct dt_allocation_hint *hint,
3221 struct dt_object_format *dof,
3224 LASSERT(S_ISLNK(attr->la_mode));
3225 return osd_mkfile(info, obj, (attr->la_mode &
3226 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th,
3230 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
3231 struct lu_attr *attr,
3232 struct dt_allocation_hint *hint,
3233 struct dt_object_format *dof,
3236 umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
3239 LINVRNT(osd_invariant(obj));
3240 LASSERT(obj->oo_inode == NULL);
3241 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
3242 S_ISFIFO(mode) || S_ISSOCK(mode));
3244 result = osd_mkfile(info, obj, mode, hint, th, attr);
3246 LASSERT(obj->oo_inode != NULL);
3248 * This inode should be marked dirty for i_rdev. Currently
3249 * that is done in the osd_attr_init().
3251 init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
3254 LINVRNT(osd_invariant(obj));
3258 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
3260 struct dt_allocation_hint *hint,
3261 struct dt_object_format *dof,
3264 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
3266 osd_obj_type_f result;
3282 result = osd_mk_index;
3293 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
3294 struct dt_object *parent, struct dt_object *child,
3299 ah->dah_parent = parent;
3300 ah->dah_mode = child_mode;
3302 if (parent != NULL && !dt_object_remote(parent)) {
3303 /* will help to find FID->ino at dt_insert("..") */
3304 struct osd_object *pobj = osd_dt_obj(parent);
3306 osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
3310 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
3311 struct lu_attr *attr, struct dt_object_format *dof)
3313 struct inode *inode = obj->oo_inode;
3314 __u64 valid = attr->la_valid;
3317 attr->la_valid &= ~(LA_TYPE | LA_MODE);
3319 if (dof->dof_type != DFT_NODE)
3320 attr->la_valid &= ~LA_RDEV;
3321 if ((valid & LA_ATIME) && (attr->la_atime == inode->i_atime.tv_sec))
3322 attr->la_valid &= ~LA_ATIME;
3323 if ((valid & LA_CTIME) && (attr->la_ctime == inode->i_ctime.tv_sec))
3324 attr->la_valid &= ~LA_CTIME;
3325 if ((valid & LA_MTIME) && (attr->la_mtime == inode->i_mtime.tv_sec))
3326 attr->la_valid &= ~LA_MTIME;
3328 result = osd_quota_transfer(inode, attr);
3332 if (attr->la_valid != 0) {
3333 result = osd_inode_setattr(info->oti_env, inode, attr);
3335 * The osd_inode_setattr() should always succeed here. The
3336 * only error that could be returned is EDQUOT when we are
3337 * trying to change the UID or GID of the inode. However, this
3338 * should not happen since quota enforcement is no longer
3339 * enabled on ldiskfs (lquota takes care of it).
3341 LASSERTF(result == 0, "%d\n", result);
3342 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3345 attr->la_valid = valid;
3349 * Helper function for osd_create()
3351 * \retval 0, on success
3353 static int __osd_create(struct osd_thread_info *info, struct osd_object *obj,
3354 struct lu_attr *attr, struct dt_allocation_hint *hint,
3355 struct dt_object_format *dof, struct thandle *th)
3360 osd_trans_exec_op(info->oti_env, th, OSD_OT_CREATE);
3362 /* we drop umask so that permissions we pass are not affected */
3363 umask = current->fs->umask;
3364 current->fs->umask = 0;
3366 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
3368 if (likely(obj->oo_inode != NULL)) {
3369 LASSERT(obj->oo_inode->i_state & I_NEW);
3372 * Unlock the inode before attr initialization to avoid
3373 * unnecessary dqget operations. LU-6378
3375 unlock_new_inode(obj->oo_inode);
3378 if (likely(result == 0)) {
3379 osd_attr_init(info, obj, attr, dof);
3380 osd_object_init0(obj);
3383 /* restore previous umask value */
3384 current->fs->umask = umask;
3386 osd_trans_exec_check(info->oti_env, th, OSD_OT_CREATE);
3392 * Helper function for osd_create()
3394 * \retval 0, on success
3396 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
3397 const struct lu_fid *fid, struct thandle *th)
3399 struct osd_thread_info *info = osd_oti_get(env);
3400 struct osd_inode_id *id = &info->oti_id;
3401 struct osd_device *osd = osd_obj2dev(obj);
3402 struct osd_thandle *oh;
3405 LASSERT(obj->oo_inode != NULL);
3407 oh = container_of0(th, struct osd_thandle, ot_super);
3408 LASSERT(oh->ot_handle);
3409 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3411 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
3412 rc = osd_oi_insert(info, osd, fid, id, oh->ot_handle,
3413 OI_CHECK_FLD, NULL);
3414 if (CFS_FAIL_CHECK(OBD_FAIL_OSD_DUPLICATE_MAP) && osd->od_is_ost) {
3415 struct lu_fid next_fid = *fid;
3417 /* insert next object in advance, and map to the same inode */
3419 if (next_fid.f_oid != 0) {
3420 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3421 osd_oi_insert(info, osd, &next_fid, id, oh->ot_handle,
3422 OI_CHECK_FLD, NULL);
3423 osd_trans_exec_check(env, th, OSD_OT_INSERT);
3427 osd_trans_exec_check(env, th, OSD_OT_INSERT);
3432 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
3433 u64 seq, struct lu_seq_range *range)
3435 struct seq_server_site *ss = osd_seq_site(osd);
3437 if (fid_seq_is_idif(seq)) {
3438 fld_range_set_ost(range);
3439 range->lsr_index = idif_ost_idx(seq);
3443 if (!fid_seq_in_fldb(seq)) {
3444 fld_range_set_mdt(range);
3447 * FIXME: If ss is NULL, it suppose not get lsr_index
3450 range->lsr_index = ss->ss_node_id;
3454 LASSERT(ss != NULL);
3455 fld_range_set_any(range);
3456 /* OSD will only do local fld lookup */
3457 return fld_local_lookup(env, ss->ss_server_fld, seq, range);
3460 static int osd_declare_create(const struct lu_env *env, struct dt_object *dt,
3461 struct lu_attr *attr,
3462 struct dt_allocation_hint *hint,
3463 struct dt_object_format *dof,
3464 struct thandle *handle)
3466 struct osd_thandle *oh;
3471 LASSERT(handle != NULL);
3473 oh = container_of0(handle, struct osd_thandle, ot_super);
3474 LASSERT(oh->ot_handle == NULL);
3477 * EA object consumes more credits than regular object: osd_mk_index
3478 * vs. osd_mkreg: osd_mk_index will create 2 blocks for root_node and
3479 * leaf_node, could involves the block, block bitmap, groups, GDT
3480 * change for each block, so add 4 * 2 credits in that case.
3482 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
3483 osd_dto_credits_noquota[DTO_OBJECT_CREATE] +
3484 (dof->dof_type == DFT_INDEX) ? 4 * 2 : 0);
3486 * Reuse idle OI block may cause additional one OI block
3489 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3490 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
3491 if (CFS_FAIL_CHECK(OBD_FAIL_OSD_DUPLICATE_MAP))
3492 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3493 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
3495 /* will help to find FID->ino mapping at dt_insert() */
3496 rc = osd_idc_find_and_init(env, osd_obj2dev(osd_dt_obj(dt)),
3504 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid,
3505 attr->la_projid, 1, oh, osd_dt_obj(dt),
3506 NULL, OSD_QID_INODE);
3514 * Called to destroy on-disk representation of the object
3516 * Concurrency: must be locked
3518 static int osd_declare_destroy(const struct lu_env *env, struct dt_object *dt,
3521 struct osd_object *obj = osd_dt_obj(dt);
3522 struct inode *inode = obj->oo_inode;
3523 struct osd_thandle *oh;
3531 oh = container_of0(th, struct osd_thandle, ot_super);
3532 LASSERT(oh->ot_handle == NULL);
3534 osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
3535 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
3537 /* For removing agent entry */
3538 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu))
3539 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
3542 * Recycle idle OI leaf may cause additional three OI blocks
3545 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3546 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3547 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
3548 /* one less inode */
3549 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3550 i_projid_read(inode), -1, oh, obj, NULL,
3554 /* data to be truncated */
3555 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3556 i_projid_read(inode), 0, oh, obj, NULL,
3562 * will help to find FID->ino when this object is being
3565 rc = osd_idc_find_and_init(env, osd_obj2dev(obj), obj);
3570 static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
3573 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3574 struct osd_object *obj = osd_dt_obj(dt);
3575 struct inode *inode = obj->oo_inode;
3576 struct osd_device *osd = osd_obj2dev(obj);
3577 struct osd_thandle *oh;
3582 oh = container_of0(th, struct osd_thandle, ot_super);
3583 LASSERT(oh->ot_handle);
3585 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
3587 if (unlikely(fid_is_acct(fid)))
3590 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu)) {
3591 result = osd_delete_from_remote_parent(env, osd, obj, oh, true);
3593 CERROR("%s: remove agent entry "DFID": rc = %d\n",
3594 osd_name(osd), PFID(fid), result);
3597 if (S_ISDIR(inode->i_mode)) {
3598 LASSERT(osd_inode_unlinked(inode) || inode->i_nlink == 1 ||
3599 inode->i_nlink == 2);
3601 spin_lock(&obj->oo_guard);
3603 spin_unlock(&obj->oo_guard);
3604 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3607 osd_trans_exec_op(env, th, OSD_OT_DESTROY);
3609 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
3611 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3612 result = osd_oi_delete(osd_oti_get(env), osd, fid,
3613 oh->ot_handle, OI_CHECK_FLD);
3615 osd_trans_exec_check(env, th, OSD_OT_DESTROY);
3616 /* XXX: add to ext3 orphan list */
3617 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
3619 /* not needed in the cache anymore */
3620 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
3621 obj->oo_destroyed = 1;
3627 * Put the fid into lustre_mdt_attrs, and then place the structure
3628 * inode's ea. This fid should not be altered during the life time
3631 * \retval +ve, on success
3632 * \retval -ve, on error
3634 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
3636 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
3637 const struct lu_fid *fid, __u32 compat, __u32 incompat)
3639 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
3640 struct lustre_mdt_attrs *lma = &loa->loa_lma;
3645 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INLMA))
3648 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_OST_EA_FID_SET))
3651 lustre_loa_init(loa, fid, compat, incompat);
3652 lustre_loa_swab(loa, false);
3655 * For the OST device with 256 bytes inode size by default,
3656 * the PFID EA will be stored together with LMA EA to avoid
3657 * performance trouble. Otherwise the PFID EA can be stored
3658 * independently. LU-8998
3660 if ((compat & LMAC_FID_ON_OST) &&
3661 LDISKFS_INODE_SIZE(inode->i_sb) <= 256)
3662 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3663 sizeof(*loa), XATTR_CREATE);
3665 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3666 sizeof(*lma), XATTR_CREATE);
3668 * LMA may already exist, but we need to check that all the
3669 * desired compat/incompat flags have been added.
3671 if (unlikely(rc == -EEXIST)) {
3672 rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
3673 XATTR_NAME_LMA, (void *)loa, sizeof(*loa));
3677 if (rc < sizeof(*lma))
3680 lustre_loa_swab(loa, true);
3681 if (lu_fid_eq(fid, &lma->lma_self_fid) &&
3682 ((compat == 0 && incompat == 0) ||
3683 (!(~lma->lma_compat & compat) &&
3684 !(~lma->lma_incompat & incompat))))
3687 lma->lma_self_fid = *fid;
3688 lma->lma_compat |= compat;
3689 lma->lma_incompat |= incompat;
3690 if (rc == sizeof(*lma)) {
3691 lustre_lma_swab(lma);
3692 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3693 sizeof(*lma), XATTR_REPLACE);
3695 lustre_loa_swab(loa, false);
3696 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3697 sizeof(*loa), XATTR_REPLACE);
3705 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
3706 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
3707 * To have compatilibility with 1.8 ldiskfs driver we need to have
3708 * magic number at start of fid data.
3709 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
3712 static void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
3713 const struct lu_fid *fid)
3715 if (!fid_is_namespace_visible(fid) ||
3716 OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
3717 param->edp_magic = 0;
3721 param->edp_magic = LDISKFS_LUFID_MAGIC;
3722 param->edp_len = sizeof(struct lu_fid) + 1;
3723 fid_cpu_to_be((struct lu_fid *)param->edp_data, (struct lu_fid *)fid);
3727 * Try to read the fid from inode ea into dt_rec.
3729 * \param fid object fid.
3731 * \retval 0 on success
3733 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
3734 __u32 ino, struct lu_fid *fid,
3735 struct osd_inode_id *id)
3737 struct osd_thread_info *info = osd_oti_get(env);
3738 struct inode *inode;
3742 osd_id_gen(id, ino, OSD_OII_NOGEN);
3743 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
3745 RETURN(PTR_ERR(inode));
3751 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
3753 struct inode *parent_dir,
3754 const struct lu_fid *dot_fid,
3755 const struct lu_fid *dot_dot_fid,
3756 struct osd_thandle *oth)
3758 struct ldiskfs_dentry_param *dot_ldp;
3759 struct ldiskfs_dentry_param *dot_dot_ldp;
3760 __u32 saved_nlink = dir->i_nlink;
3763 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
3764 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
3766 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3767 dot_ldp->edp_magic = 0;
3769 rc = ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
3770 dir, dot_ldp, dot_dot_ldp);
3772 * The ldiskfs_add_dot_dotdot() may dir->i_nlink as 2, then
3773 * the subseqent ref_add() will increase the dir->i_nlink
3774 * as 3. That is incorrect for new created directory.
3776 * It looks like hack, because we want to make the OSD API
3777 * to be order-independent for new created directory object
3778 * between dt_insert(..) and ref_add() operations.
3780 * Here, we only restore the in-RAM dir-inode's nlink attr,
3781 * becuase if the nlink attr is not 2, then there will be
3782 * ref_add() called following the dt_insert(..), such call
3783 * will make both the in-RAM and on-disk dir-inode's nlink
3784 * attr to be set as 2. LU-7447
3786 set_nlink(dir, saved_nlink);
3791 * Create an local agent inode for remote entry
3793 static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
3794 struct osd_device *osd,
3795 struct osd_object *pobj,
3796 const struct lu_fid *fid,
3800 struct osd_thread_info *info = osd_oti_get(env);
3801 struct inode *local;
3802 struct osd_thandle *oh;
3808 oh = container_of(th, struct osd_thandle, ot_super);
3809 LASSERT(oh->ot_handle->h_transaction != NULL);
3811 local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, type,
3813 if (IS_ERR(local)) {
3814 CERROR("%s: create local error %d\n", osd_name(osd),
3815 (int)PTR_ERR(local));
3820 * restore i_gid in case S_ISGID is set, we will inherit S_ISGID and set
3821 * correct gid on remote file, not agent here
3823 local->i_gid = current_fsgid();
3824 ldiskfs_set_inode_state(local, LDISKFS_STATE_LUSTRE_NOSCRUB);
3826 /* e2fsck doesn't like empty symlinks. Store remote FID as symlink.
3827 * That gives e2fsck something to look at and be happy, and allows
3828 * debugging if we need to determine where this symlink came from.
3830 if (S_ISLNK(type)) {
3831 CLASSERT(LDISKFS_N_BLOCKS * 4 >= FID_LEN + 1);
3832 rc = snprintf((char *)LDISKFS_I(local)->i_data,
3833 LDISKFS_N_BLOCKS * 4, DFID, PFID(fid));
3835 i_size_write(local, rc);
3836 LDISKFS_I(local)->i_disksize = rc;
3838 unlock_new_inode(local);
3840 /* Agent inode should not have project ID */
3841 #ifdef HAVE_PROJECT_QUOTA
3842 if (LDISKFS_I(pobj->oo_inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
3843 i_projid_read(pobj->oo_inode) != 0) {
3844 rc = osd_transfer_project(local, 0);
3846 CERROR("%s: quota transfer failed: rc = %d. Is project "
3847 "quota enforcement enabled on the ldiskfs "
3848 "filesystem?\n", local->i_sb->s_id, rc);
3849 RETURN(ERR_PTR(rc));
3853 /* Set special LMA flag for local agent inode */
3854 rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
3856 CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
3857 osd_name(osd), PFID(fid), rc);
3858 RETURN(ERR_PTR(rc));
3864 rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
3865 lu_object_fid(&pobj->oo_dt.do_lu),
3868 CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
3869 osd_name(osd), PFID(fid), rc);
3870 RETURN(ERR_PTR(rc));
3877 * when direntry is deleted, we have to take care of possible agent inode
3878 * referenced by that. unfortunately we can't do this at that point:
3879 * iget() within a running transaction leads to deadlock and we better do
3880 * not call that every delete declaration to save performance. so we put
3881 * a potention agent inode on a list and process that once the transaction
3882 * is over. Notice it's not any worse in terms of real orphans as regular
3883 * object destroy doesn't put inodes on the on-disk orphan list. this should
3884 * be addressed separately
3886 static int osd_schedule_agent_inode_removal(const struct lu_env *env,
3887 struct osd_thandle *oh,
3890 struct osd_device *osd = osd_dt_dev(oh->ot_super.th_dev);
3891 struct osd_obj_orphan *oor;
3898 oor->oor_env = (struct lu_env *)env;
3899 spin_lock(&osd->od_osfs_lock);
3900 list_add(&oor->oor_list, &osd->od_orphan_list);
3901 spin_unlock(&osd->od_osfs_lock);
3903 oh->ot_remove_agents = 1;
3909 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
3910 struct osd_device *osd)
3912 struct osd_thread_info *info = osd_oti_get(env);
3913 struct osd_obj_orphan *oor, *tmp;
3914 struct osd_inode_id id;
3915 struct list_head list;
3916 struct inode *inode;
3921 INIT_LIST_HEAD(&list);
3923 spin_lock(&osd->od_osfs_lock);
3924 list_for_each_entry_safe(oor, tmp, &osd->od_orphan_list, oor_list) {
3925 if (oor->oor_env == env) {
3926 list_del(&oor->oor_list);
3927 list_add(&oor->oor_list, &list);
3930 spin_unlock(&osd->od_osfs_lock);
3932 list_for_each_entry_safe(oor, tmp, &list, oor_list) {
3936 list_del(&oor->oor_list);
3939 osd_id_gen(&id, ino, OSD_OII_NOGEN);
3940 inode = osd_iget_fid(info, osd, &id, &fid);
3944 if (!osd_remote_fid(env, osd, &fid)) {
3949 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC, 1);
3951 mark_inode_dirty(inode);
3952 ldiskfs_journal_stop(jh);
3960 * OSD layer object create function for OST objects (b=11826).
3962 * The FID is inserted into inode xattr here.
3964 * \retval 0, on success
3965 * \retval -ve, on error
3967 static int osd_create(const struct lu_env *env, struct dt_object *dt,
3968 struct lu_attr *attr, struct dt_allocation_hint *hint,
3969 struct dt_object_format *dof, struct thandle *th)
3971 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3972 struct osd_object *obj = osd_dt_obj(dt);
3973 struct osd_thread_info *info = osd_oti_get(env);
3974 int result, on_ost = 0;
3978 if (dt_object_exists(dt))
3981 LINVRNT(osd_invariant(obj));
3982 LASSERT(!dt_object_remote(dt));
3983 LASSERT(osd_is_write_locked(env, obj));
3984 LASSERT(th != NULL);
3986 if (unlikely(fid_is_acct(fid)))
3988 * Quota files can't be created from the kernel any more,
3989 * 'tune2fs -O quota' will take care of creating them
3993 result = __osd_create(info, obj, attr, hint, dof, th);
3995 if (fid_is_idif(fid) &&
3996 !osd_dev(dt->do_lu.lo_dev)->od_index_in_idif) {
3997 struct lu_fid *tfid = &info->oti_fid;
3998 struct ost_id *oi = &info->oti_ostid;
4000 fid_to_ostid(fid, oi);
4001 ostid_to_fid(tfid, oi, 0);
4003 result = osd_ea_fid_set(info, obj->oo_inode, tfid,
4004 LMAC_FID_ON_OST, 0);
4006 on_ost = fid_is_on_ost(info, osd_obj2dev(obj),
4008 result = osd_ea_fid_set(info, obj->oo_inode, fid,
4009 on_ost ? LMAC_FID_ON_OST : 0,
4012 if (obj->oo_dt.do_body_ops == &osd_body_ops_new)
4013 obj->oo_dt.do_body_ops = &osd_body_ops;
4016 if (!result && !CFS_FAIL_CHECK(OBD_FAIL_OSD_NO_OI_ENTRY))
4017 result = __osd_oi_insert(env, obj, fid, th);
4020 * a small optimization - dt_insert() isn't usually applied
4021 * to OST objects, so we don't need to cache OI mapping for
4024 if (result == 0 && on_ost == 0) {
4025 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4027 result = osd_idc_find_and_init(env, osd, obj);
4028 LASSERT(result == 0);
4031 LASSERT(ergo(result == 0,
4032 dt_object_exists(dt) && !dt_object_remote(dt)));
4033 LINVRNT(osd_invariant(obj));
4037 static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
4038 struct thandle *handle)
4040 struct osd_thandle *oh;
4042 /* it's possible that object doesn't exist yet */
4043 LASSERT(handle != NULL);
4045 oh = container_of0(handle, struct osd_thandle, ot_super);
4046 LASSERT(oh->ot_handle == NULL);
4048 osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
4049 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
4051 osd_idc_find_and_init(env, osd_dev(dt->do_lu.lo_dev), osd_dt_obj(dt));
4057 * Concurrency: @dt is write locked.
4059 static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
4062 struct osd_object *obj = osd_dt_obj(dt);
4063 struct inode *inode = obj->oo_inode;
4064 struct osd_thandle *oh;
4067 if (!dt_object_exists(dt) || obj->oo_destroyed)
4070 LINVRNT(osd_invariant(obj));
4071 LASSERT(!dt_object_remote(dt));
4072 LASSERT(osd_is_write_locked(env, obj));
4073 LASSERT(th != NULL);
4075 oh = container_of0(th, struct osd_thandle, ot_super);
4076 LASSERT(oh->ot_handle != NULL);
4078 osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
4080 CDEBUG(D_INODE, DFID" increase nlink %d\n",
4081 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
4083 * The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
4084 * (65000) subdirectories by storing "1" in i_nlink if the link count
4085 * would otherwise overflow. Directory tranversal tools understand
4086 * that (st_nlink == 1) indicates that the filesystem dose not track
4087 * hard links count on the directory, and will not abort subdirectory
4088 * scanning early once (st_nlink - 2) subdirs have been found.
4090 * This also has to properly handle the case of inodes with nlink == 0
4091 * in case they are being linked into the PENDING directory
4093 spin_lock(&obj->oo_guard);
4094 if (unlikely(inode->i_nlink == 0))
4095 /* inc_nlink from 0 may cause WARN_ON */
4096 set_nlink(inode, 1);
4098 ldiskfs_inc_count(oh->ot_handle, inode);
4099 if (!S_ISDIR(inode->i_mode))
4100 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
4102 spin_unlock(&obj->oo_guard);
4104 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4105 LINVRNT(osd_invariant(obj));
4107 osd_trans_exec_check(env, th, OSD_OT_REF_ADD);
4112 static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
4113 struct thandle *handle)
4115 struct osd_thandle *oh;
4117 if (!dt_object_exists(dt))
4120 LASSERT(!dt_object_remote(dt));
4121 LASSERT(handle != NULL);
4123 oh = container_of0(handle, struct osd_thandle, ot_super);
4124 LASSERT(oh->ot_handle == NULL);
4126 osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
4127 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
4133 * Concurrency: @dt is write locked.
4135 static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
4138 struct osd_object *obj = osd_dt_obj(dt);
4139 struct inode *inode = obj->oo_inode;
4140 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4141 struct osd_thandle *oh;
4143 if (!dt_object_exists(dt))
4146 LINVRNT(osd_invariant(obj));
4147 LASSERT(!dt_object_remote(dt));
4148 LASSERT(osd_is_write_locked(env, obj));
4149 LASSERT(th != NULL);
4151 oh = container_of0(th, struct osd_thandle, ot_super);
4152 LASSERT(oh->ot_handle != NULL);
4154 osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
4156 spin_lock(&obj->oo_guard);
4158 * That can be result of upgrade from old Lustre version and
4159 * applied only to local files. Just skip this ref_del call.
4160 * ext4_unlink() only treats this as a warning, don't LASSERT here.
4162 if (inode->i_nlink == 0) {
4163 CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
4164 D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
4165 ", maybe an upgraded file? (LU-3915)\n",
4166 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
4167 spin_unlock(&obj->oo_guard);
4171 CDEBUG(D_INODE, DFID" decrease nlink %d\n",
4172 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
4174 ldiskfs_dec_count(oh->ot_handle, inode);
4175 spin_unlock(&obj->oo_guard);
4177 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4178 LINVRNT(osd_invariant(obj));
4180 osd_trans_exec_check(env, th, OSD_OT_REF_DEL);
4186 * Concurrency: @dt is read locked.
4188 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
4189 struct lu_buf *buf, const char *name)
4191 struct osd_object *obj = osd_dt_obj(dt);
4192 struct inode *inode = obj->oo_inode;
4193 struct osd_thread_info *info = osd_oti_get(env);
4194 struct dentry *dentry = &info->oti_obj_dentry;
4195 bool cache_xattr = false;
4200 /* version get is not real XATTR but uses xattr API */
4201 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4202 dt_obj_version_t *ver = buf->lb_buf;
4205 * for version we are just using xattr API but change inode
4208 if (buf->lb_len == 0)
4209 return sizeof(dt_obj_version_t);
4211 if (buf->lb_len < sizeof(dt_obj_version_t))
4214 CDEBUG(D_INODE, "Get version %#llx for inode %lu\n",
4215 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
4217 *ver = LDISKFS_I(inode)->i_fs_version;
4219 return sizeof(dt_obj_version_t);
4222 if (!dt_object_exists(dt))
4225 LASSERT(!dt_object_remote(dt));
4226 LASSERT(inode->i_op != NULL);
4227 #ifdef HAVE_IOP_XATTR
4228 LASSERT(inode->i_op->getxattr != NULL);
4231 if (strcmp(name, XATTR_NAME_LOV) == 0 ||
4232 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0)
4236 rc = osd_oxc_get(obj, name, buf);
4241 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
4242 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4243 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4244 struct filter_fid *ff;
4245 struct ost_layout *ol;
4247 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4251 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
4254 if (buf->lb_len == 0 || !buf->lb_buf)
4257 if (buf->lb_len < rc)
4261 ol = &ff->ff_layout;
4262 ol->ol_stripe_count = cpu_to_le32(loa->loa_parent_fid.f_ver >>
4263 PFID_STRIPE_IDX_BITS);
4264 ol->ol_stripe_size = cpu_to_le32(loa->loa_stripe_size);
4265 loa->loa_parent_fid.f_ver &= PFID_STRIPE_COUNT_MASK;
4266 fid_cpu_to_le(&ff->ff_parent, &loa->loa_parent_fid);
4267 if (lma->lma_compat & LMAC_COMP_INFO) {
4268 ol->ol_comp_start = cpu_to_le64(loa->loa_comp_start);
4269 ol->ol_comp_end = cpu_to_le64(loa->loa_comp_end);
4270 ol->ol_comp_id = cpu_to_le32(loa->loa_comp_id);
4272 ol->ol_comp_start = 0;
4273 ol->ol_comp_end = 0;
4277 rc = __osd_xattr_get(inode, dentry, name,
4278 buf->lb_buf, buf->lb_len);
4282 if (rc == -ENOENT || rc == -ENODATA)
4283 osd_oxc_add(obj, name, NULL, 0);
4284 else if (rc > 0 && buf->lb_buf != NULL)
4285 osd_oxc_add(obj, name, buf->lb_buf, rc);
4291 static int osd_declare_xattr_set(const struct lu_env *env,
4292 struct dt_object *dt,
4293 const struct lu_buf *buf, const char *name,
4294 int fl, struct thandle *handle)
4296 struct osd_thandle *oh;
4298 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4300 LASSERT(handle != NULL);
4302 oh = container_of0(handle, struct osd_thandle, ot_super);
4303 LASSERT(oh->ot_handle == NULL);
4305 if (strcmp(name, XATTR_NAME_LMA) == 0) {
4307 * For non-upgrading case, the LMA is set first and
4308 * usually fit inode. But for upgrade case, the LMA
4309 * may be in another separated EA block.
4311 if (dt_object_exists(dt)) {
4312 if (fl == LU_XATTR_REPLACE)
4317 } else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4319 } else if (strcmp(name, XATTR_NAME_FID) == 0) {
4320 /* We may need to delete the old PFID EA. */
4321 credits = LDISKFS_MAXQUOTAS_DEL_BLOCKS(sb);
4322 if (fl == LU_XATTR_REPLACE)
4328 * If some name entry resides on remote MDT, then will create
4329 * agent entry under remote parent. On the other hand, if the
4330 * remote entry will be removed, then related agent entry may
4331 * need to be removed from the remote parent. So there may be
4332 * kinds of cases, let's declare enough credits. The credits
4333 * for create agent entry is enough for remove case.
4335 if (strcmp(name, XATTR_NAME_LINK) == 0) {
4336 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
4337 if (dt_object_exists(dt))
4338 credits += 1; /* For updating LMA */
4342 credits += osd_dto_credits_noquota[DTO_XATTR_SET];
4347 if (buf->lb_buf == NULL && dt_object_exists(dt)) {
4349 * learn xattr size from osd_xattr_get if
4350 * attribute has not been read yet
4352 buflen = __osd_xattr_get(
4353 osd_dt_obj(dt)->oo_inode,
4354 &osd_oti_get(env)->oti_obj_dentry,
4359 buflen = buf->lb_len;
4362 if (buflen > sb->s_blocksize) {
4363 credits += osd_calc_bkmap_credits(
4365 (buflen + sb->s_blocksize - 1) >>
4366 sb->s_blocksize_bits);
4370 * xattr set may involve inode quota change, reserve credits for
4371 * dquot_initialize()
4373 credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4376 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
4381 static int osd_xattr_set_pfid(const struct lu_env *env, struct osd_object *obj,
4382 const struct lu_buf *buf, int fl,
4383 struct thandle *handle)
4385 struct osd_thread_info *info = osd_oti_get(env);
4386 struct dentry *dentry = &info->oti_obj_dentry;
4387 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4388 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4389 struct inode *inode = obj->oo_inode;
4390 struct filter_fid *ff = buf->lb_buf;
4391 struct ost_layout *ol = &ff->ff_layout;
4392 int flags = XATTR_REPLACE;
4397 if (buf->lb_len != sizeof(*ff) && buf->lb_len != sizeof(struct lu_fid))
4400 rc = osd_get_lma(info, inode, dentry, loa);
4401 if (rc == -ENODATA) {
4402 /* Usually for upgarding from old device */
4403 lustre_loa_init(loa, lu_object_fid(&obj->oo_dt.do_lu),
4404 LMAC_FID_ON_OST, 0);
4405 flags = XATTR_CREATE;
4410 if (!rc && lma->lma_compat & LMAC_STRIPE_INFO) {
4411 if ((fl & LU_XATTR_CREATE) && !(fl & LU_XATTR_REPLACE))
4414 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256) {
4415 /* Separate PFID EA from LMA */
4416 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4417 lustre_lma_swab(lma);
4418 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4419 sizeof(*lma), XATTR_REPLACE);
4421 obj->oo_pfid_in_lma = 0;
4422 rc = LU_XATTR_CREATE;
4428 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256)
4432 * Old client does not send stripe information,
4433 * then store the PFID EA on disk separatedly.
4435 if (unlikely(buf->lb_len == sizeof(struct lu_fid) ||
4436 ol->ol_stripe_size == 0))
4439 /* Remove old PFID EA entry firstly. */
4440 ll_vfs_dq_init(inode);
4441 rc = osd_removexattr(dentry, inode, XATTR_NAME_FID);
4442 if (rc == -ENODATA) {
4443 if ((fl & LU_XATTR_REPLACE) && !(fl & LU_XATTR_CREATE))
4450 fid_le_to_cpu(&loa->loa_parent_fid, &ff->ff_parent);
4451 if (likely(ol->ol_stripe_size != 0)) {
4452 loa->loa_parent_fid.f_ver |= le32_to_cpu(ol->ol_stripe_count) <<
4453 PFID_STRIPE_IDX_BITS;
4454 loa->loa_stripe_size = le32_to_cpu(ol->ol_stripe_size);
4455 lma->lma_compat |= LMAC_STRIPE_INFO;
4456 if (ol->ol_comp_id != 0) {
4457 loa->loa_comp_id = le32_to_cpu(ol->ol_comp_id);
4458 loa->loa_comp_start = le64_to_cpu(ol->ol_comp_start);
4459 loa->loa_comp_end = le64_to_cpu(ol->ol_comp_end);
4460 lma->lma_compat |= LMAC_COMP_INFO;
4464 lustre_loa_swab(loa, false);
4466 /* Store the PFID EA inside LMA. */
4467 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa, sizeof(*loa),
4470 obj->oo_pfid_in_lma = 1;
4476 * In DNE environment, the object (in spite of regular file or directory)
4477 * and its name entry may reside on different MDTs. Under such case, we will
4478 * create an agent entry on the MDT where the object resides. The agent entry
4479 * references the object locally, that makes the object to be visible to the
4480 * userspace when mounted as 'ldiskfs' directly. Then the userspace tools,
4481 * such as 'tar' can handle the object properly.
4483 * We handle the agent entry during set linkEA that is the common interface
4484 * for both regular file and directroy, can handle kinds of cases, such as
4485 * create/link/unlink/rename, and so on.
4487 * NOTE: we can NOT do that when ea_{insert,delete} that is only for directory.
4489 * XXX: There are two known issues:
4490 * 1. For one object, we will create at most one agent entry even if there
4491 * may be more than one cross-MDTs hard links on the object. So the local
4492 * e2fsck may claim that the object's nlink is larger than the name entries
4493 * that reference such inode. And in further, the e2fsck will fix the nlink
4494 * attribute to match the local references. Then it will cause the object's
4495 * nlink attribute to be inconsistent with the global references. it is bad
4496 * but not fatal. The ref_del() can handle the zero-referenced case. On the
4497 * other hand, the global namespace LFSCK can repair the object's attribute
4498 * according to the linkEA.
4499 * 2. There may be too many hard links on the object as to its linkEA overflow,
4500 * then the linkEA entry for cross-MDTs reference may be discarded. If such
4501 * case happened, then at this point, we do not know whether there are some
4502 * cross-MDTs reference. But there are local references, it guarantees that
4503 * object is visible to userspace when mounted as 'ldiskfs'. That is enough.
4505 static int osd_xattr_handle_linkea(const struct lu_env *env,
4506 struct osd_device *osd,
4507 struct osd_object *obj,
4508 const struct lu_buf *buf,
4509 struct thandle *handle)
4511 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
4512 struct lu_fid *tfid = &osd_oti_get(env)->oti_fid3;
4513 struct linkea_data ldata = { .ld_buf = (struct lu_buf *)buf };
4514 struct lu_name tmpname;
4515 struct osd_thandle *oh;
4517 bool remote = false;
4521 oh = container_of0(handle, struct osd_thandle, ot_super);
4522 LASSERT(oh->ot_handle != NULL);
4524 rc = linkea_init_with_rec(&ldata);
4526 linkea_first_entry(&ldata);
4527 while (ldata.ld_lee != NULL && !remote) {
4528 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen,
4530 if (osd_remote_fid(env, osd, tfid) > 0)
4533 linkea_next_entry(&ldata);
4535 } else if (rc == -ENODATA) {
4541 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu) && !remote) {
4542 rc = osd_delete_from_remote_parent(env, osd, obj, oh, false);
4544 CERROR("%s: failed to remove agent entry for "DFID
4545 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4546 } else if (!lu_object_has_agent_entry(&obj->oo_dt.do_lu) && remote) {
4547 rc = osd_add_to_remote_parent(env, osd, obj, oh);
4549 CERROR("%s: failed to create agent entry for "DFID
4550 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4557 * Concurrency: @dt is write locked.
4559 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
4560 const struct lu_buf *buf, const char *name, int fl,
4561 struct thandle *handle)
4563 struct osd_object *obj = osd_dt_obj(dt);
4564 struct osd_device *osd = osd_obj2dev(obj);
4565 struct inode *inode = obj->oo_inode;
4566 struct osd_thread_info *info = osd_oti_get(env);
4576 /* version set is not real XATTR */
4577 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4578 dt_obj_version_t *version = buf->lb_buf;
4581 * for version we are just using xattr API but change inode
4584 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
4586 CDEBUG(D_INODE, "Set version %#llx (old %#llx) for inode %lu\n",
4587 *version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
4589 LDISKFS_I(inode)->i_fs_version = *version;
4591 * Version is set after all inode operations are finished,
4592 * so we should mark it dirty here
4594 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4599 CDEBUG(D_INODE, DFID" set xattr '%s' with size %zu\n",
4600 PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
4603 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4606 * For the OST device with 256 bytes inode size by default,
4607 * the PFID EA will be stored together with LMA EA to avoid
4608 * performance trouble. Otherwise the PFID EA can be stored
4609 * independently. LU-8998
4611 if (strcmp(name, XATTR_NAME_FID) == 0 && osd->od_is_ost &&
4612 (LDISKFS_INODE_SIZE(inode->i_sb) <= 256 || obj->oo_pfid_in_lma)) {
4613 LASSERT(buf->lb_buf);
4615 fl = osd_xattr_set_pfid(env, obj, buf, fl, handle);
4618 } else if (strcmp(name, XATTR_NAME_LMV) == 0) {
4619 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4620 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4622 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4626 lma->lma_incompat |= LMAI_STRIPED;
4627 lustre_lma_swab(lma);
4628 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4629 sizeof(*lma), XATTR_REPLACE);
4632 } else if (strcmp(name, XATTR_NAME_LINK) == 0) {
4633 LASSERT(!osd->od_is_ost);
4635 rc = osd_xattr_handle_linkea(env, osd, obj, buf, handle);
4640 if (fl & LU_XATTR_REPLACE)
4641 fs_flags |= XATTR_REPLACE;
4643 if (fl & LU_XATTR_CREATE)
4644 fs_flags |= XATTR_CREATE;
4646 rc = __osd_xattr_set(info, inode, name, buf->lb_buf, len, fs_flags);
4647 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4650 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4651 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4652 osd_oxc_add(obj, name, buf->lb_buf, buf->lb_len);
4658 * Concurrency: @dt is read locked.
4660 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
4661 const struct lu_buf *buf)
4663 struct osd_object *obj = osd_dt_obj(dt);
4664 struct inode *inode = obj->oo_inode;
4665 struct osd_thread_info *info = osd_oti_get(env);
4666 struct dentry *dentry = &info->oti_obj_dentry;
4668 if (!dt_object_exists(dt))
4671 LASSERT(!dt_object_remote(dt));
4672 LASSERT(inode->i_op != NULL);
4673 LASSERT(inode->i_op->listxattr != NULL);
4675 dentry->d_inode = inode;
4676 dentry->d_sb = inode->i_sb;
4677 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
4680 static int osd_declare_xattr_del(const struct lu_env *env,
4681 struct dt_object *dt, const char *name,
4682 struct thandle *handle)
4684 struct osd_thandle *oh;
4685 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4687 LASSERT(!dt_object_remote(dt));
4688 LASSERT(handle != NULL);
4690 oh = container_of0(handle, struct osd_thandle, ot_super);
4691 LASSERT(oh->ot_handle == NULL);
4693 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
4694 osd_dto_credits_noquota[DTO_XATTR_SET]);
4696 * xattr del may involve inode quota change, reserve credits for
4697 * dquot_initialize()
4699 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4705 * Concurrency: @dt is write locked.
4707 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
4708 const char *name, struct thandle *handle)
4710 struct osd_object *obj = osd_dt_obj(dt);
4711 struct inode *inode = obj->oo_inode;
4712 struct osd_thread_info *info = osd_oti_get(env);
4713 struct dentry *dentry = &info->oti_obj_dentry;
4716 if (!dt_object_exists(dt))
4719 LASSERT(!dt_object_remote(dt));
4720 LASSERT(inode->i_op != NULL);
4721 LASSERT(handle != NULL);
4722 #ifdef HAVE_IOP_XATTR
4723 LASSERT(inode->i_op->removexattr != NULL);
4726 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4728 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
4729 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
4731 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
4732 &info->oti_ost_attrs);
4734 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
4736 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4737 lustre_lma_swab(lma);
4738 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4739 sizeof(*lma), XATTR_REPLACE);
4741 obj->oo_pfid_in_lma = 0;
4744 ll_vfs_dq_init(inode);
4745 dentry->d_inode = inode;
4746 dentry->d_sb = inode->i_sb;
4747 rc = osd_removexattr(dentry, inode, name);
4750 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4753 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4754 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4755 osd_oxc_del(obj, name);
4760 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
4761 __u64 start, __u64 end)
4763 struct osd_object *obj = osd_dt_obj(dt);
4764 struct inode *inode = obj->oo_inode;
4765 struct osd_thread_info *info = osd_oti_get(env);
4766 struct dentry *dentry = &info->oti_obj_dentry;
4767 struct file *file = &info->oti_file;
4772 dentry->d_inode = inode;
4773 dentry->d_sb = inode->i_sb;
4774 file->f_path.dentry = dentry;
4775 file->f_mapping = inode->i_mapping;
4776 file->f_op = inode->i_fop;
4777 set_file_inode(file, inode);
4779 rc = ll_vfs_fsync_range(file, start, end, 0);
4784 static int osd_invalidate(const struct lu_env *env, struct dt_object *dt)
4793 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
4794 const struct dt_index_features *feat)
4796 struct iam_descr *descr;
4798 if (osd_object_is_root(o))
4799 return feat == &dt_directory_features;
4801 LASSERT(o->oo_dir != NULL);
4803 descr = o->oo_dir->od_container.ic_descr;
4804 if (feat == &dt_directory_features) {
4805 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
4810 return feat->dif_keysize_min <= descr->id_key_size &&
4811 descr->id_key_size <= feat->dif_keysize_max &&
4812 feat->dif_recsize_min <= descr->id_rec_size &&
4813 descr->id_rec_size <= feat->dif_recsize_max &&
4814 !(feat->dif_flags & (DT_IND_VARKEY |
4815 DT_IND_VARREC | DT_IND_NONUNQ)) &&
4816 ergo(feat->dif_flags & DT_IND_UPDATE,
4817 1 /* XXX check that object (and fs) is writable */);
4821 static int osd_iam_container_init(const struct lu_env *env,
4822 struct osd_object *obj,
4823 struct osd_directory *dir)
4825 struct iam_container *bag = &dir->od_container;
4828 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
4832 result = iam_container_setup(bag);
4834 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
4836 iam_container_fini(bag);
4843 * Concurrency: no external locking is necessary.
4845 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
4846 const struct dt_index_features *feat)
4850 struct osd_object *obj = osd_dt_obj(dt);
4852 LINVRNT(osd_invariant(obj));
4854 if (osd_object_is_root(obj)) {
4855 dt->do_index_ops = &osd_index_ea_ops;
4857 } else if (feat == &dt_directory_features) {
4858 dt->do_index_ops = &osd_index_ea_ops;
4859 if (obj->oo_inode == NULL || S_ISDIR(obj->oo_inode->i_mode))
4864 } else if (unlikely(feat == &dt_otable_features)) {
4865 dt->do_index_ops = &osd_otable_ops;
4867 } else if (unlikely(feat == &dt_acct_features)) {
4868 dt->do_index_ops = &osd_acct_index_ops;
4871 } else if (!osd_has_index(obj)) {
4872 struct osd_directory *dir;
4873 struct osd_device *osd = osd_obj2dev(obj);
4874 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
4879 spin_lock(&obj->oo_guard);
4880 if (obj->oo_dir == NULL)
4884 * Concurrent thread allocated container data.
4887 spin_unlock(&obj->oo_guard);
4889 * Now, that we have container data, serialize its
4892 down_write(&obj->oo_ext_idx_sem);
4894 * recheck under lock.
4897 if (osd_has_index(obj)) {
4902 result = osd_iam_container_init(env, obj, obj->oo_dir);
4903 if (result || feat == &dt_lfsck_namespace_features ||
4904 feat == &dt_lfsck_layout_orphan_features ||
4905 feat == &dt_lfsck_layout_dangling_features)
4908 result = osd_index_register(osd, fid,
4909 feat->dif_keysize_max,
4910 feat->dif_recsize_max);
4912 CWARN("%s: failed to register index "
4914 osd_name(osd), PFID(fid), result);
4915 else if (result > 0)
4918 CDEBUG(D_LFSCK, "%s: index object "DFID
4919 " (%d/%d) registered\n",
4920 osd_name(osd), PFID(fid),
4921 (int)feat->dif_keysize_max,
4922 (int)feat->dif_recsize_max);
4925 up_write(&obj->oo_ext_idx_sem);
4933 if (result == 0 && skip_iam == 0) {
4934 if (!osd_iam_index_probe(env, obj, feat))
4937 LINVRNT(osd_invariant(obj));
4942 static int osd_otable_it_attr_get(const struct lu_env *env,
4943 struct dt_object *dt,
4944 struct lu_attr *attr)
4950 static const struct dt_object_operations osd_obj_ops = {
4951 .do_read_lock = osd_read_lock,
4952 .do_write_lock = osd_write_lock,
4953 .do_read_unlock = osd_read_unlock,
4954 .do_write_unlock = osd_write_unlock,
4955 .do_write_locked = osd_write_locked,
4956 .do_attr_get = osd_attr_get,
4957 .do_declare_attr_set = osd_declare_attr_set,
4958 .do_attr_set = osd_attr_set,
4959 .do_ah_init = osd_ah_init,
4960 .do_declare_create = osd_declare_create,
4961 .do_create = osd_create,
4962 .do_declare_destroy = osd_declare_destroy,
4963 .do_destroy = osd_destroy,
4964 .do_index_try = osd_index_try,
4965 .do_declare_ref_add = osd_declare_ref_add,
4966 .do_ref_add = osd_ref_add,
4967 .do_declare_ref_del = osd_declare_ref_del,
4968 .do_ref_del = osd_ref_del,
4969 .do_xattr_get = osd_xattr_get,
4970 .do_declare_xattr_set = osd_declare_xattr_set,
4971 .do_xattr_set = osd_xattr_set,
4972 .do_declare_xattr_del = osd_declare_xattr_del,
4973 .do_xattr_del = osd_xattr_del,
4974 .do_xattr_list = osd_xattr_list,
4975 .do_object_sync = osd_object_sync,
4976 .do_invalidate = osd_invalidate,
4979 static const struct dt_object_operations osd_obj_otable_it_ops = {
4980 .do_attr_get = osd_otable_it_attr_get,
4981 .do_index_try = osd_index_try,
4984 static int osd_index_declare_iam_delete(const struct lu_env *env,
4985 struct dt_object *dt,
4986 const struct dt_key *key,
4987 struct thandle *handle)
4989 struct osd_thandle *oh;
4991 oh = container_of0(handle, struct osd_thandle, ot_super);
4992 LASSERT(oh->ot_handle == NULL);
4994 /* Recycle may cause additional three blocks to be changed. */
4995 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
4996 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
5002 * delete a (key, value) pair from index \a dt specified by \a key
5004 * \param dt osd index object
5005 * \param key key for index
5006 * \param rec record reference
5007 * \param handle transaction handler
5010 * \retval -ve failure
5012 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
5013 const struct dt_key *key,
5014 struct thandle *handle)
5016 struct osd_thread_info *oti = osd_oti_get(env);
5017 struct osd_object *obj = osd_dt_obj(dt);
5018 struct osd_thandle *oh;
5019 struct iam_path_descr *ipd;
5020 struct iam_container *bag = &obj->oo_dir->od_container;
5025 if (!dt_object_exists(dt))
5028 LINVRNT(osd_invariant(obj));
5029 LASSERT(!dt_object_remote(dt));
5030 LASSERT(bag->ic_object == obj->oo_inode);
5031 LASSERT(handle != NULL);
5033 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
5035 ipd = osd_idx_ipd_get(env, bag);
5036 if (unlikely(ipd == NULL))
5039 oh = container_of0(handle, struct osd_thandle, ot_super);
5040 LASSERT(oh->ot_handle != NULL);
5041 LASSERT(oh->ot_handle->h_transaction != NULL);
5043 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5044 /* swab quota uid/gid provided by caller */
5045 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5046 key = (const struct dt_key *)&oti->oti_quota_id;
5049 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
5050 osd_ipd_put(env, bag, ipd);
5051 LINVRNT(osd_invariant(obj));
5052 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
5056 static int osd_index_declare_ea_delete(const struct lu_env *env,
5057 struct dt_object *dt,
5058 const struct dt_key *key,
5059 struct thandle *handle)
5061 struct osd_thandle *oh;
5062 struct inode *inode;
5067 LASSERT(!dt_object_remote(dt));
5068 LASSERT(handle != NULL);
5070 oh = container_of0(handle, struct osd_thandle, ot_super);
5071 LASSERT(oh->ot_handle == NULL);
5073 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE];
5074 osd_trans_declare_op(env, oh, OSD_OT_DELETE, credits);
5076 inode = osd_dt_obj(dt)->oo_inode;
5080 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
5081 i_projid_read(inode), 0, oh, osd_dt_obj(dt),
5086 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
5089 struct osd_fid_pack *rec;
5092 if (de->file_type & LDISKFS_DIRENT_LUFID) {
5093 rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
5094 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
5095 if (rc == 0 && unlikely(!fid_is_sane((struct lu_fid *)fid)))
5101 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
5102 const struct lu_fid *fid)
5104 struct seq_server_site *ss = osd_seq_site(osd);
5108 /* FID seqs not in FLDB, must be local seq */
5109 if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
5113 * If FLD is not being initialized yet, it only happens during the
5114 * initialization, likely during mgs initialization, and we assume
5115 * this is local FID.
5117 if (ss == NULL || ss->ss_server_fld == NULL)
5120 /* Only check the local FLDB here */
5121 if (osd_seq_exists(env, osd, fid_seq(fid)))
5127 static void osd_take_care_of_agent(const struct lu_env *env,
5128 struct osd_device *osd,
5129 struct osd_thandle *oh,
5130 struct ldiskfs_dir_entry_2 *de)
5132 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
5133 struct osd_idmap_cache *idc;
5134 int rc, schedule = 0;
5136 LASSERT(de != NULL);
5138 rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
5139 if (likely(rc == 0)) {
5140 idc = osd_idc_find_or_init(env, osd, fid);
5141 if (IS_ERR(idc) || idc->oic_remote)
5143 } else if (rc == -ENODATA) {
5145 * can't get FID, postpone to the end of the
5146 * transaction when iget() is safe
5150 CERROR("%s: can't get FID: rc = %d\n", osd_name(osd), rc);
5153 osd_schedule_agent_inode_removal(env, oh,
5154 le32_to_cpu(de->inode));
5158 * Index delete function for interoperability mode (b11826).
5159 * It will remove the directory entry added by osd_index_ea_insert().
5160 * This entry is needed to maintain name->fid mapping.
5162 * \param key, key i.e. file entry to be deleted
5164 * \retval 0, on success
5165 * \retval -ve, on error
5167 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
5168 const struct dt_key *key, struct thandle *handle)
5170 struct osd_object *obj = osd_dt_obj(dt);
5171 struct inode *dir = obj->oo_inode;
5172 struct dentry *dentry;
5173 struct osd_thandle *oh;
5174 struct ldiskfs_dir_entry_2 *de = NULL;
5175 struct buffer_head *bh;
5176 struct htree_lock *hlock = NULL;
5177 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5182 if (!dt_object_exists(dt))
5185 LINVRNT(osd_invariant(obj));
5186 LASSERT(!dt_object_remote(dt));
5187 LASSERT(handle != NULL);
5189 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
5191 oh = container_of(handle, struct osd_thandle, ot_super);
5192 LASSERT(oh->ot_handle != NULL);
5193 LASSERT(oh->ot_handle->h_transaction != NULL);
5195 ll_vfs_dq_init(dir);
5196 dentry = osd_child_dentry_get(env, obj,
5197 (char *)key, strlen((char *)key));
5199 if (obj->oo_hl_head != NULL) {
5200 hlock = osd_oti_get(env)->oti_hlock;
5201 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5202 dir, LDISKFS_HLOCK_DEL);
5204 down_write(&obj->oo_ext_idx_sem);
5207 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5210 * If this is not the ".." entry, it might be a remote DNE
5211 * entry and we need to check if the FID is for a remote
5212 * MDT. If the FID is not in the directory entry (e.g.
5213 * upgraded 1.8 filesystem without dirdata enabled) then
5214 * we need to get the FID from the LMA. For a remote directory
5215 * there HAS to be an LMA, it cannot be an IGIF inode in this
5218 * Delete the entry before the agent inode in order to
5219 * simplify error handling. At worst an error after deleting
5220 * the entry first might leak the agent inode afterward. The
5221 * reverse would need filesystem abort in case of error deleting
5222 * the entry after the agent had been removed, or leave a
5223 * dangling entry pointing at a random inode.
5225 if (strcmp((char *)key, dotdot) != 0)
5226 osd_take_care_of_agent(env, osd, oh, de);
5227 rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
5233 ldiskfs_htree_unlock(hlock);
5235 up_write(&obj->oo_ext_idx_sem);
5239 LASSERT(osd_invariant(obj));
5240 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
5245 * Lookup index for \a key and copy record to \a rec.
5247 * \param dt osd index object
5248 * \param key key for index
5249 * \param rec record reference
5251 * \retval +ve success : exact mach
5252 * \retval 0 return record with key not greater than \a key
5253 * \retval -ve failure
5255 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
5256 struct dt_rec *rec, const struct dt_key *key)
5258 struct osd_object *obj = osd_dt_obj(dt);
5259 struct iam_path_descr *ipd;
5260 struct iam_container *bag = &obj->oo_dir->od_container;
5261 struct osd_thread_info *oti = osd_oti_get(env);
5262 struct iam_iterator *it = &oti->oti_idx_it;
5263 struct iam_rec *iam_rec;
5268 if (!dt_object_exists(dt))
5271 LASSERT(osd_invariant(obj));
5272 LASSERT(!dt_object_remote(dt));
5273 LASSERT(bag->ic_object == obj->oo_inode);
5275 ipd = osd_idx_ipd_get(env, bag);
5279 /* got ipd now we can start iterator. */
5280 iam_it_init(it, bag, 0, ipd);
5282 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5283 /* swab quota uid/gid provided by caller */
5284 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5285 key = (const struct dt_key *)&oti->oti_quota_id;
5288 rc = iam_it_get(it, (struct iam_key *)key);
5290 if (S_ISDIR(obj->oo_inode->i_mode))
5291 iam_rec = (struct iam_rec *)oti->oti_ldp;
5293 iam_rec = (struct iam_rec *)rec;
5295 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
5297 if (S_ISDIR(obj->oo_inode->i_mode))
5298 osd_fid_unpack((struct lu_fid *)rec,
5299 (struct osd_fid_pack *)iam_rec);
5300 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
5301 osd_quota_unpack(obj, rec);
5306 osd_ipd_put(env, bag, ipd);
5308 LINVRNT(osd_invariant(obj));
5313 static int osd_index_declare_iam_insert(const struct lu_env *env,
5314 struct dt_object *dt,
5315 const struct dt_rec *rec,
5316 const struct dt_key *key,
5317 struct thandle *handle)
5319 struct osd_thandle *oh;
5321 LASSERT(handle != NULL);
5323 oh = container_of0(handle, struct osd_thandle, ot_super);
5324 LASSERT(oh->ot_handle == NULL);
5326 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
5327 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
5333 * Inserts (key, value) pair in \a dt index object.
5335 * \param dt osd index object
5336 * \param key key for index
5337 * \param rec record reference
5338 * \param th transaction handler
5341 * \retval -ve failure
5343 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
5344 const struct dt_rec *rec,
5345 const struct dt_key *key, struct thandle *th)
5347 struct osd_object *obj = osd_dt_obj(dt);
5348 struct iam_path_descr *ipd;
5349 struct osd_thandle *oh;
5350 struct iam_container *bag;
5351 struct osd_thread_info *oti = osd_oti_get(env);
5352 struct iam_rec *iam_rec;
5357 if (!dt_object_exists(dt))
5360 LINVRNT(osd_invariant(obj));
5361 LASSERT(!dt_object_remote(dt));
5363 bag = &obj->oo_dir->od_container;
5364 LASSERT(bag->ic_object == obj->oo_inode);
5365 LASSERT(th != NULL);
5367 osd_trans_exec_op(env, th, OSD_OT_INSERT);
5369 ipd = osd_idx_ipd_get(env, bag);
5370 if (unlikely(ipd == NULL))
5373 oh = container_of0(th, struct osd_thandle, ot_super);
5374 LASSERT(oh->ot_handle != NULL);
5375 LASSERT(oh->ot_handle->h_transaction != NULL);
5376 if (S_ISDIR(obj->oo_inode->i_mode)) {
5377 iam_rec = (struct iam_rec *)oti->oti_ldp;
5378 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec,
5380 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5381 /* pack quota uid/gid */
5382 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5383 key = (const struct dt_key *)&oti->oti_quota_id;
5384 /* pack quota record */
5385 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
5386 iam_rec = (struct iam_rec *)rec;
5388 iam_rec = (struct iam_rec *)rec;
5391 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
5393 osd_ipd_put(env, bag, ipd);
5394 LINVRNT(osd_invariant(obj));
5395 osd_trans_exec_check(env, th, OSD_OT_INSERT);
5400 * Calls ldiskfs_add_entry() to add directory entry
5401 * into the directory. This is required for
5402 * interoperability mode (b11826)
5404 * \retval 0, on success
5405 * \retval -ve, on error
5407 static int __osd_ea_add_rec(struct osd_thread_info *info,
5408 struct osd_object *pobj, struct inode *cinode,
5409 const char *name, const struct lu_fid *fid,
5410 struct htree_lock *hlock, struct thandle *th)
5412 struct ldiskfs_dentry_param *ldp;
5413 struct dentry *child;
5414 struct osd_thandle *oth;
5417 oth = container_of(th, struct osd_thandle, ot_super);
5418 LASSERT(oth->ot_handle != NULL);
5419 LASSERT(oth->ot_handle->h_transaction != NULL);
5420 LASSERT(pobj->oo_inode);
5422 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
5423 if (unlikely(pobj->oo_inode ==
5424 osd_sb(osd_obj2dev(pobj))->s_root->d_inode))
5427 osd_get_ldiskfs_dirent_param(ldp, fid);
5428 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
5429 child->d_fsdata = (void *)ldp;
5430 ll_vfs_dq_init(pobj->oo_inode);
5431 rc = osd_ldiskfs_add_entry(info, osd_obj2dev(pobj), oth->ot_handle,
5432 child, cinode, hlock);
5433 if (rc == 0 && OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_TYPE)) {
5434 struct ldiskfs_dir_entry_2 *de;
5435 struct buffer_head *bh;
5438 bh = osd_ldiskfs_find_entry(pobj->oo_inode, &child->d_name, &de,
5441 rc1 = ldiskfs_journal_get_write_access(oth->ot_handle,
5444 if (S_ISDIR(cinode->i_mode))
5445 de->file_type = LDISKFS_DIRENT_LUFID |
5446 LDISKFS_FT_REG_FILE;
5448 de->file_type = LDISKFS_DIRENT_LUFID |
5450 ldiskfs_handle_dirty_metadata(oth->ot_handle,
5461 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
5462 * into the directory.Also sets flags into osd object to
5463 * indicate dot and dotdot are created. This is required for
5464 * interoperability mode (b11826)
5466 * \param dir directory for dot and dotdot fixup.
5467 * \param obj child object for linking
5469 * \retval 0, on success
5470 * \retval -ve, on error
5472 static int osd_add_dot_dotdot(struct osd_thread_info *info,
5473 struct osd_object *dir,
5474 struct inode *parent_dir, const char *name,
5475 const struct lu_fid *dot_fid,
5476 const struct lu_fid *dot_dot_fid,
5479 struct inode *inode = dir->oo_inode;
5480 struct osd_thandle *oth;
5483 oth = container_of(th, struct osd_thandle, ot_super);
5484 LASSERT(oth->ot_handle->h_transaction != NULL);
5485 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
5487 if (strcmp(name, dot) == 0) {
5488 if (dir->oo_compat_dot_created) {
5491 LASSERT(inode->i_ino == parent_dir->i_ino);
5492 dir->oo_compat_dot_created = 1;
5495 } else if (strcmp(name, dotdot) == 0) {
5496 if (!dir->oo_compat_dot_created)
5498 /* in case of rename, dotdot is already created */
5499 if (dir->oo_compat_dotdot_created) {
5500 return __osd_ea_add_rec(info, dir, parent_dir, name,
5501 dot_dot_fid, NULL, th);
5504 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_PARENT)) {
5505 struct lu_fid tfid = *dot_dot_fid;
5508 result = osd_add_dot_dotdot_internal(info,
5509 dir->oo_inode, parent_dir, dot_fid,
5512 result = osd_add_dot_dotdot_internal(info,
5513 dir->oo_inode, parent_dir, dot_fid,
5518 dir->oo_compat_dotdot_created = 1;
5526 * It will call the appropriate osd_add* function and return the
5527 * value, return by respective functions.
5529 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
5530 struct inode *cinode, const char *name,
5531 const struct lu_fid *fid, struct thandle *th)
5533 struct osd_thread_info *info = osd_oti_get(env);
5534 struct htree_lock *hlock;
5537 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
5539 if (name[0] == '.' && (name[1] == '\0' ||
5540 (name[1] == '.' && name[2] == '\0'))) {
5541 if (hlock != NULL) {
5542 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5545 down_write(&pobj->oo_ext_idx_sem);
5548 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
5549 lu_object_fid(&pobj->oo_dt.do_lu),
5552 if (hlock != NULL) {
5553 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5554 pobj->oo_inode, LDISKFS_HLOCK_ADD);
5556 down_write(&pobj->oo_ext_idx_sem);
5559 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
5560 struct lu_fid *tfid = &info->oti_fid;
5564 rc = __osd_ea_add_rec(info, pobj, cinode, name,
5567 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
5572 ldiskfs_htree_unlock(hlock);
5574 up_write(&pobj->oo_ext_idx_sem);
5580 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
5581 struct osd_idmap_cache *oic)
5583 struct lustre_scrub *scrub = &dev->od_scrub.os_scrub;
5584 struct lu_fid *fid = &oic->oic_fid;
5585 struct osd_inode_id *id = &oic->oic_lid;
5586 struct inode *inode = NULL;
5593 if (!fid_is_norm(fid) && !fid_is_igif(fid))
5596 if (thread_is_running(&scrub->os_thread) &&
5597 scrub->os_pos_current > id->oii_ino)
5600 if (dev->od_auto_scrub_interval == AS_NEVER ||
5601 ktime_get_real_seconds() <
5602 scrub->os_file.sf_time_last_complete + dev->od_auto_scrub_interval)
5606 rc = osd_oi_lookup(oti, dev, fid, &oti->oti_id, 0);
5607 if (rc == -ENOENT) {
5608 __u32 gen = id->oii_gen;
5614 inode = osd_iget(oti, dev, id);
5615 /* The inode has been removed (by race maybe). */
5616 if (IS_ERR(inode)) {
5617 rc = PTR_ERR(inode);
5619 RETURN(rc == -ESTALE ? -ENOENT : rc);
5622 /* The OI mapping is lost. */
5623 if (gen != OSD_OII_NOGEN)
5627 * The inode may has been reused by others, we do not know,
5628 * leave it to be handled by subsequent osd_fid_lookup().
5631 } else if (rc || osd_id_eq(id, &oti->oti_id)) {
5638 if (thread_is_running(&scrub->os_thread)) {
5639 if (inode == NULL) {
5640 inode = osd_iget(oti, dev, id);
5641 /* The inode has been removed (by race maybe). */
5642 if (IS_ERR(inode)) {
5643 rc = PTR_ERR(inode);
5645 RETURN(rc == -ESTALE ? -ENOENT : rc);
5649 rc = osd_oii_insert(dev, oic, insert);
5651 * There is race condition between osd_oi_lookup and OI scrub.
5652 * The OI scrub finished just after osd_oi_lookup() failure.
5653 * Under such case, it is unnecessary to trigger OI scrub again,
5654 * but try to call osd_oi_lookup() again.
5656 if (unlikely(rc == -EAGAIN))
5659 if (!S_ISDIR(inode->i_mode))
5662 rc = osd_check_lmv(oti, dev, inode, oic);
5667 if (dev->od_auto_scrub_interval != AS_NEVER && ++once == 1) {
5668 rc = osd_scrub_start(oti->oti_env, dev, SS_AUTO_PARTIAL |
5669 SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT);
5670 CDEBUG(D_LFSCK | D_CONSOLE | D_WARNING,
5671 "%s: trigger partial OI scrub for RPC inconsistency "
5672 "checking FID "DFID": rc = %d\n",
5673 osd_dev2name(dev), PFID(fid), rc);
5674 if (rc == 0 || rc == -EALREADY)
5687 static int osd_fail_fid_lookup(struct osd_thread_info *oti,
5688 struct osd_device *dev,
5689 struct osd_idmap_cache *oic,
5690 struct lu_fid *fid, __u32 ino)
5692 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
5693 struct inode *inode;
5696 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
5697 inode = osd_iget(oti, dev, &oic->oic_lid);
5698 if (IS_ERR(inode)) {
5699 fid_zero(&oic->oic_fid);
5700 return PTR_ERR(inode);
5703 rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, loa);
5706 fid_zero(&oic->oic_fid);
5708 *fid = oic->oic_fid = loa->loa_lma.lma_self_fid;
5712 void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
5713 struct osd_inode_id *id, const struct lu_fid *fid)
5715 CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
5716 id->oii_ino, id->oii_gen, info);
5717 info->oti_cache.oic_lid = *id;
5718 info->oti_cache.oic_fid = *fid;
5719 info->oti_cache.oic_dev = osd;
5723 * Get parent FID from the linkEA.
5725 * For a directory which parent resides on remote MDT, to satisfy the
5726 * local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
5727 * the other hand, to make the lookup(..) on the directory can return
5728 * the real parent FID, we append the real parent FID after its ".."
5729 * name entry in the /REMOTE_PARENT_DIR.
5731 * Unfortunately, such PFID-in-dirent cannot be preserved via file-level
5732 * backup. So after the restore, we cannot get the right parent FID from
5733 * its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
5734 * we have stored the real parent FID in the directory object's linkEA,
5735 * we can parse the linkEA for the real parent FID.
5737 * \param[in] env pointer to the thread context
5738 * \param[in] obj pointer to the object to be handled
5739 * \param[out]fid pointer to the buffer to hold the parent FID
5741 * \retval 0 for getting the real parent FID successfully
5742 * \retval negative error number on failure
5744 static int osd_get_pfid_from_linkea(const struct lu_env *env,
5745 struct osd_object *obj,
5748 struct osd_thread_info *oti = osd_oti_get(env);
5749 struct lu_buf *buf = &oti->oti_big_buf;
5750 struct dentry *dentry = &oti->oti_obj_dentry;
5751 struct inode *inode = obj->oo_inode;
5752 struct linkea_data ldata = { NULL };
5758 if (!S_ISDIR(inode->i_mode))
5762 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5763 buf->lb_buf, buf->lb_len);
5764 if (rc == -ERANGE) {
5765 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5768 lu_buf_realloc(buf, rc);
5769 if (buf->lb_buf == NULL)
5776 if (unlikely(rc == 0))
5782 if (unlikely(buf->lb_buf == NULL)) {
5783 lu_buf_realloc(buf, rc);
5784 if (buf->lb_buf == NULL)
5791 rc = linkea_init_with_rec(&ldata);
5793 linkea_first_entry(&ldata);
5794 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
5800 static int osd_verify_ent_by_linkea(const struct lu_env *env,
5801 struct inode *inode,
5802 const struct lu_fid *pfid,
5803 const char *name, const int namelen)
5805 struct osd_thread_info *oti = osd_oti_get(env);
5806 struct lu_buf *buf = &oti->oti_big_buf;
5807 struct dentry *dentry = &oti->oti_obj_dentry;
5808 struct linkea_data ldata = { NULL };
5809 struct lu_name cname = { .ln_name = name,
5810 .ln_namelen = namelen };
5816 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5817 buf->lb_buf, buf->lb_len);
5819 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK, NULL, 0);
5824 if (unlikely(rc == 0))
5827 if (buf->lb_len < rc) {
5828 lu_buf_realloc(buf, rc);
5829 if (buf->lb_buf == NULL)
5836 rc = linkea_init_with_rec(&ldata);
5838 rc = linkea_links_find(&ldata, &cname, pfid);
5844 * Calls ->lookup() to find dentry. From dentry get inode and
5845 * read inode's ea to get fid. This is required for interoperability
5848 * \retval 0, on success
5849 * \retval -ve, on error
5851 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
5852 struct dt_rec *rec, const struct dt_key *key)
5854 struct inode *dir = obj->oo_inode;
5855 struct dentry *dentry;
5856 struct ldiskfs_dir_entry_2 *de;
5857 struct buffer_head *bh;
5858 struct lu_fid *fid = (struct lu_fid *)rec;
5859 struct htree_lock *hlock = NULL;
5865 LASSERT(dir->i_op != NULL);
5866 LASSERT(dir->i_op->lookup != NULL);
5868 dentry = osd_child_dentry_get(env, obj,
5869 (char *)key, strlen((char *)key));
5871 if (obj->oo_hl_head != NULL) {
5872 hlock = osd_oti_get(env)->oti_hlock;
5873 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5874 dir, LDISKFS_HLOCK_LOOKUP);
5876 down_read(&obj->oo_ext_idx_sem);
5879 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5881 struct osd_thread_info *oti = osd_oti_get(env);
5882 struct osd_inode_id *id = &oti->oti_id;
5883 struct osd_idmap_cache *oic = &oti->oti_cache;
5884 struct osd_device *dev = osd_obj2dev(obj);
5886 ino = le32_to_cpu(de->inode);
5887 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
5889 rc = osd_fail_fid_lookup(oti, dev, oic, fid, ino);
5893 rc = osd_get_fid_from_dentry(de, rec);
5895 /* done with de, release bh */
5898 if (unlikely(is_remote_parent_ino(dev, ino))) {
5899 const char *name = (const char *)key;
5902 * If the parent is on remote MDT, and there
5903 * is no FID-in-dirent, then we have to get
5904 * the parent FID from the linkEA.
5906 if (likely(strlen(name) == 2 &&
5907 name[0] == '.' && name[1] == '.'))
5908 rc = osd_get_pfid_from_linkea(env, obj,
5911 rc = osd_ea_fid_get(env, obj, ino, fid, id);
5914 osd_id_gen(id, ino, OSD_OII_NOGEN);
5917 if (rc != 0 || osd_remote_fid(env, dev, fid)) {
5918 fid_zero(&oic->oic_fid);
5923 osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id, fid);
5924 rc = osd_consistency_check(oti, dev, oic);
5926 fid_zero(&oic->oic_fid);
5928 /* Other error should not affect lookup result. */
5938 ldiskfs_htree_unlock(hlock);
5940 up_read(&obj->oo_ext_idx_sem);
5944 static int osd_index_declare_ea_insert(const struct lu_env *env,
5945 struct dt_object *dt,
5946 const struct dt_rec *rec,
5947 const struct dt_key *key,
5948 struct thandle *handle)
5950 struct osd_thandle *oh;
5951 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5952 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
5953 const struct lu_fid *fid = rec1->rec_fid;
5954 int credits, rc = 0;
5955 struct osd_idmap_cache *idc;
5959 LASSERT(!dt_object_remote(dt));
5960 LASSERT(handle != NULL);
5961 LASSERT(fid != NULL);
5962 LASSERT(rec1->rec_type != 0);
5964 oh = container_of0(handle, struct osd_thandle, ot_super);
5965 LASSERT(oh->ot_handle == NULL);
5967 credits = osd_dto_credits_noquota[DTO_INDEX_INSERT];
5970 * we can't call iget() while a transactions is running
5971 * (this can lead to a deadlock), but we need to know
5972 * inum and object type. so we find this information at
5973 * declaration and cache in per-thread info
5975 idc = osd_idc_find_or_init(env, osd, fid);
5977 RETURN(PTR_ERR(idc));
5978 if (idc->oic_remote) {
5980 * a reference to remote inode is represented by an
5981 * agent inode which we have to create
5983 credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
5984 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
5987 osd_trans_declare_op(env, oh, OSD_OT_INSERT, credits);
5989 if (osd_dt_obj(dt)->oo_inode != NULL) {
5990 struct inode *inode = osd_dt_obj(dt)->oo_inode;
5993 * We ignore block quota on meta pool (MDTs), so needn't
5994 * calculate how many blocks will be consumed by this index
5997 rc = osd_declare_inode_qid(env, i_uid_read(inode),
5999 i_projid_read(inode), 0,
6000 oh, osd_dt_obj(dt), NULL,
6005 #ifdef HAVE_PROJECT_QUOTA
6007 * Reserve credits for local agent inode to transfer
6008 * to 0, quota enforcement is ignored in this case.
6010 if (idc->oic_remote &&
6011 LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
6012 i_projid_read(inode) != 0)
6013 rc = osd_declare_attr_qid(env, osd_dt_obj(dt), oh,
6014 0, i_projid_read(inode),
6015 0, false, PRJQUOTA, true);
6023 * Index add function for interoperability mode (b11826).
6024 * It will add the directory entry.This entry is needed to
6025 * maintain name->fid mapping.
6027 * \param key it is key i.e. file entry to be inserted
6028 * \param rec it is value of given key i.e. fid
6030 * \retval 0, on success
6031 * \retval -ve, on error
6033 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
6034 const struct dt_rec *rec,
6035 const struct dt_key *key, struct thandle *th)
6037 struct osd_object *obj = osd_dt_obj(dt);
6038 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
6039 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
6040 const struct lu_fid *fid = rec1->rec_fid;
6041 const char *name = (const char *)key;
6042 struct osd_thread_info *oti = osd_oti_get(env);
6043 struct inode *child_inode = NULL;
6044 struct osd_idmap_cache *idc;
6049 if (!dt_object_exists(dt))
6052 LASSERT(osd_invariant(obj));
6053 LASSERT(!dt_object_remote(dt));
6054 LASSERT(th != NULL);
6056 osd_trans_exec_op(env, th, OSD_OT_INSERT);
6058 LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
6060 idc = osd_idc_find(env, osd, fid);
6061 if (unlikely(idc == NULL)) {
6062 idc = osd_idc_find_or_init(env, osd, fid);
6065 * this dt_insert() wasn't declared properly, so
6066 * FID is missing in OI cache. we better do not
6067 * lookup FID in FLDB/OI and don't risk to deadlock,
6068 * but in some special cases (lfsck testing, etc)
6069 * it's much simpler than fixing a caller.
6071 * normally this error should be placed after the first
6072 * find, but migrate may attach source stripes to
6073 * target, which doesn't create stripes.
6075 CERROR("%s: "DFID" wasn't declared for insert\n",
6076 osd_name(osd), PFID(fid));
6078 RETURN(PTR_ERR(idc));
6082 if (idc->oic_remote) {
6083 /* Insert remote entry */
6084 if (strcmp(name, dotdot) == 0 && strlen(name) == 2) {
6086 igrab(osd->od_mdt_map->omm_remote_parent->d_inode);
6088 child_inode = osd_create_local_agent_inode(env, osd,
6089 obj, fid, rec1->rec_type & S_IFMT, th);
6090 if (IS_ERR(child_inode))
6091 RETURN(PTR_ERR(child_inode));
6094 /* Insert local entry */
6095 if (unlikely(idc->oic_lid.oii_ino == 0)) {
6096 /* for a reason OI cache wasn't filled properly */
6097 CERROR("%s: OIC for "DFID" isn't filled\n",
6098 osd_name(osd), PFID(fid));
6101 child_inode = oti->oti_inode;
6102 if (unlikely(child_inode == NULL)) {
6103 struct ldiskfs_inode_info *lii;
6108 child_inode = oti->oti_inode = &lii->vfs_inode;
6110 child_inode->i_sb = osd_sb(osd);
6111 child_inode->i_ino = idc->oic_lid.oii_ino;
6112 child_inode->i_mode = rec1->rec_type & S_IFMT;
6115 rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
6117 CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
6118 obj->oo_inode->i_ino, name, child_inode->i_ino, rc);
6120 if (child_inode && child_inode != oti->oti_inode)
6122 LASSERT(osd_invariant(obj));
6123 osd_trans_exec_check(env, th, OSD_OT_INSERT);
6128 * Initialize osd Iterator for given osd index object.
6130 * \param dt osd index object
6133 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
6134 struct dt_object *dt,
6137 struct osd_it_iam *it;
6138 struct osd_object *obj = osd_dt_obj(dt);
6139 struct lu_object *lo = &dt->do_lu;
6140 struct iam_path_descr *ipd;
6141 struct iam_container *bag = &obj->oo_dir->od_container;
6143 if (!dt_object_exists(dt))
6144 return ERR_PTR(-ENOENT);
6148 return ERR_PTR(-ENOMEM);
6150 ipd = osd_it_ipd_get(env, bag);
6151 if (likely(ipd != NULL)) {
6155 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
6156 return (struct dt_it *)it;
6159 return ERR_PTR(-ENOMEM);
6164 * free given Iterator.
6166 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
6168 struct osd_it_iam *it = (struct osd_it_iam *)di;
6169 struct osd_object *obj = it->oi_obj;
6171 iam_it_fini(&it->oi_it);
6172 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
6173 osd_object_put(env, obj);
6178 * Move Iterator to record specified by \a key
6180 * \param di osd iterator
6181 * \param key key for index
6183 * \retval +ve di points to record with least key not larger than key
6184 * \retval 0 di points to exact matched key
6185 * \retval -ve failure
6188 static int osd_it_iam_get(const struct lu_env *env,
6189 struct dt_it *di, const struct dt_key *key)
6191 struct osd_thread_info *oti = osd_oti_get(env);
6192 struct osd_it_iam *it = (struct osd_it_iam *)di;
6194 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
6195 /* swab quota uid/gid */
6196 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
6197 key = (struct dt_key *)&oti->oti_quota_id;
6200 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
6206 * \param di osd iterator
6208 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
6210 struct osd_it_iam *it = (struct osd_it_iam *)di;
6212 iam_it_put(&it->oi_it);
6216 * Move iterator by one record
6218 * \param di osd iterator
6220 * \retval +1 end of container reached
6222 * \retval -ve failure
6225 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
6227 struct osd_it_iam *it = (struct osd_it_iam *)di;
6229 return iam_it_next(&it->oi_it);
6233 * Return pointer to the key under iterator.
6236 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
6237 const struct dt_it *di)
6239 struct osd_thread_info *oti = osd_oti_get(env);
6240 struct osd_it_iam *it = (struct osd_it_iam *)di;
6241 struct osd_object *obj = it->oi_obj;
6244 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
6246 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
6247 /* swab quota uid/gid */
6248 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
6249 key = (struct dt_key *)&oti->oti_quota_id;
6256 * Return size of key under iterator (in bytes)
6259 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
6261 struct osd_it_iam *it = (struct osd_it_iam *)di;
6263 return iam_it_key_size(&it->oi_it);
6267 osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
6269 /* check if file type is required */
6270 if (ent->lde_attrs & LUDA_TYPE) {
6271 struct luda_type *lt;
6272 int align = sizeof(*lt) - 1;
6274 len = (len + align) & ~align;
6275 lt = (struct luda_type *)(ent->lde_name + len);
6276 lt->lt_type = cpu_to_le16(DTTOIF(type));
6279 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
6283 * build lu direct from backend fs dirent.
6287 osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
6288 char *name, __u16 namelen, __u16 type, __u32 attr)
6290 ent->lde_attrs = attr | LUDA_FID;
6291 fid_cpu_to_le(&ent->lde_fid, fid);
6293 ent->lde_hash = cpu_to_le64(offset);
6294 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
6296 strncpy(ent->lde_name, name, namelen);
6297 ent->lde_name[namelen] = '\0';
6298 ent->lde_namelen = cpu_to_le16(namelen);
6300 /* append lustre attributes */
6301 osd_it_append_attrs(ent, namelen, type);
6305 * Return pointer to the record under iterator.
6307 static int osd_it_iam_rec(const struct lu_env *env,
6308 const struct dt_it *di,
6309 struct dt_rec *dtrec, __u32 attr)
6311 struct osd_it_iam *it = (struct osd_it_iam *)di;
6312 struct osd_thread_info *info = osd_oti_get(env);
6316 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
6317 const struct osd_fid_pack *rec;
6318 struct lu_fid *fid = &info->oti_fid;
6319 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
6325 name = (char *)iam_it_key_get(&it->oi_it);
6327 RETURN(PTR_ERR(name));
6329 namelen = iam_it_key_size(&it->oi_it);
6331 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
6333 RETURN(PTR_ERR(rec));
6335 rc = osd_fid_unpack(fid, rec);
6339 hash = iam_it_store(&it->oi_it);
6341 /* IAM does not store object type in IAM index (dir) */
6342 osd_it_pack_dirent(lde, fid, hash, name, namelen,
6344 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
6345 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
6346 (struct iam_rec *)dtrec);
6347 osd_quota_unpack(it->oi_obj, dtrec);
6349 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
6350 (struct iam_rec *)dtrec);
6357 * Returns cookie for current Iterator position.
6359 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
6361 struct osd_it_iam *it = (struct osd_it_iam *)di;
6363 return iam_it_store(&it->oi_it);
6367 * Restore iterator from cookie.
6369 * \param di osd iterator
6370 * \param hash Iterator location cookie
6372 * \retval +ve di points to record with least key not larger than key.
6373 * \retval 0 di points to exact matched key
6374 * \retval -ve failure
6377 static int osd_it_iam_load(const struct lu_env *env,
6378 const struct dt_it *di, __u64 hash)
6380 struct osd_it_iam *it = (struct osd_it_iam *)di;
6382 return iam_it_load(&it->oi_it, hash);
6385 static const struct dt_index_operations osd_index_iam_ops = {
6386 .dio_lookup = osd_index_iam_lookup,
6387 .dio_declare_insert = osd_index_declare_iam_insert,
6388 .dio_insert = osd_index_iam_insert,
6389 .dio_declare_delete = osd_index_declare_iam_delete,
6390 .dio_delete = osd_index_iam_delete,
6392 .init = osd_it_iam_init,
6393 .fini = osd_it_iam_fini,
6394 .get = osd_it_iam_get,
6395 .put = osd_it_iam_put,
6396 .next = osd_it_iam_next,
6397 .key = osd_it_iam_key,
6398 .key_size = osd_it_iam_key_size,
6399 .rec = osd_it_iam_rec,
6400 .store = osd_it_iam_store,
6401 .load = osd_it_iam_load
6407 * Creates or initializes iterator context.
6409 * \retval struct osd_it_ea, iterator structure on success
6412 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
6413 struct dt_object *dt,
6416 struct osd_object *obj = osd_dt_obj(dt);
6417 struct osd_thread_info *info = osd_oti_get(env);
6418 struct osd_it_ea *oie;
6420 struct lu_object *lo = &dt->do_lu;
6421 struct dentry *obj_dentry;
6425 if (!dt_object_exists(dt) || obj->oo_destroyed)
6426 RETURN(ERR_PTR(-ENOENT));
6428 OBD_SLAB_ALLOC_PTR_GFP(oie, osd_itea_cachep, GFP_NOFS);
6430 RETURN(ERR_PTR(-ENOMEM));
6431 obj_dentry = &oie->oie_dentry;
6433 obj_dentry->d_inode = obj->oo_inode;
6434 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
6435 obj_dentry->d_name.hash = 0;
6437 oie->oie_rd_dirent = 0;
6438 oie->oie_it_dirent = 0;
6439 oie->oie_dirent = NULL;
6440 if (unlikely(!info->oti_it_ea_buf_used)) {
6441 oie->oie_buf = info->oti_it_ea_buf;
6442 info->oti_it_ea_buf_used = 1;
6444 OBD_ALLOC(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6445 if (oie->oie_buf == NULL)
6446 RETURN(ERR_PTR(-ENOMEM));
6450 file = &oie->oie_file;
6452 /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
6453 if (attr & LUDA_64BITHASH)
6454 file->f_mode = FMODE_64BITHASH;
6456 file->f_mode = FMODE_32BITHASH;
6457 file->f_path.dentry = obj_dentry;
6458 file->f_mapping = obj->oo_inode->i_mapping;
6459 file->f_op = obj->oo_inode->i_fop;
6460 set_file_inode(file, obj->oo_inode);
6463 RETURN((struct dt_it *)oie);
6467 * Destroy or finishes iterator context.
6469 * \param di iterator structure to be destroyed
6471 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
6473 struct osd_thread_info *info = osd_oti_get(env);
6474 struct osd_it_ea *oie = (struct osd_it_ea *)di;
6475 struct osd_object *obj = oie->oie_obj;
6476 struct inode *inode = obj->oo_inode;
6479 oie->oie_file.f_op->release(inode, &oie->oie_file);
6480 osd_object_put(env, obj);
6481 if (unlikely(oie->oie_buf != info->oti_it_ea_buf))
6482 OBD_FREE(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6484 info->oti_it_ea_buf_used = 0;
6485 OBD_SLAB_FREE_PTR(oie, osd_itea_cachep);
6490 * It position the iterator at given key, so that next lookup continues from
6491 * that key Or it is similar to dio_it->load() but based on a key,
6492 * rather than file position.
6494 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
6497 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
6499 static int osd_it_ea_get(const struct lu_env *env,
6500 struct dt_it *di, const struct dt_key *key)
6502 struct osd_it_ea *it = (struct osd_it_ea *)di;
6505 LASSERT(((const char *)key)[0] == '\0');
6506 it->oie_file.f_pos = 0;
6507 it->oie_rd_dirent = 0;
6508 it->oie_it_dirent = 0;
6509 it->oie_dirent = NULL;
6517 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
6521 struct osd_filldir_cbs {
6522 #ifdef HAVE_DIR_CONTEXT
6523 struct dir_context ctx;
6525 struct osd_it_ea *it;
6528 * It is called internally by ->readdir(). It fills the
6529 * iterator's in-memory data structure with required
6530 * information i.e. name, namelen, rec_size etc.
6532 * \param buf in which information to be filled in.
6533 * \param name name of the file in given dir
6535 * \retval 0 on success
6536 * \retval 1 on buffer full
6538 #ifdef HAVE_FILLDIR_USE_CTX
6539 static int osd_ldiskfs_filldir(struct dir_context *buf,
6541 static int osd_ldiskfs_filldir(void *buf,
6543 const char *name, int namelen,
6544 loff_t offset, __u64 ino, unsigned int d_type)
6546 struct osd_it_ea *it = ((struct osd_filldir_cbs *)buf)->it;
6547 struct osd_object *obj = it->oie_obj;
6548 struct osd_it_ea_dirent *ent = it->oie_dirent;
6549 struct lu_fid *fid = &ent->oied_fid;
6550 struct osd_fid_pack *rec;
6554 /* this should never happen */
6555 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
6556 CERROR("ldiskfs return invalid namelen %d\n", namelen);
6560 if ((void *)ent - it->oie_buf + sizeof(*ent) + namelen >
6564 /* "." is just the object itself. */
6565 if (namelen == 1 && name[0] == '.') {
6566 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6567 } else if (d_type & LDISKFS_DIRENT_LUFID) {
6568 rec = (struct osd_fid_pack *)(name + namelen + 1);
6569 if (osd_fid_unpack(fid, rec) != 0)
6574 d_type &= ~LDISKFS_DIRENT_LUFID;
6576 /* NOT export local root. */
6577 if (unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
6578 ino = obj->oo_inode->i_ino;
6579 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6582 ent->oied_ino = ino;
6583 ent->oied_off = offset;
6584 ent->oied_namelen = namelen;
6585 ent->oied_type = d_type;
6587 memcpy(ent->oied_name, name, namelen);
6589 it->oie_rd_dirent++;
6590 it->oie_dirent = (void *)ent + cfs_size_round(sizeof(*ent) + namelen);
6595 * Calls ->readdir() to load a directory entry at a time
6596 * and stored it in iterator's in-memory data structure.
6598 * \param di iterator's in memory structure
6600 * \retval 0 on success
6601 * \retval -ve on error
6602 * \retval +1 reach the end of entry
6604 static int osd_ldiskfs_it_fill(const struct lu_env *env,
6605 const struct dt_it *di)
6607 struct osd_it_ea *it = (struct osd_it_ea *)di;
6608 struct osd_object *obj = it->oie_obj;
6609 struct inode *inode = obj->oo_inode;
6610 struct htree_lock *hlock = NULL;
6611 struct file *filp = &it->oie_file;
6613 struct osd_filldir_cbs buf = {
6614 #ifdef HAVE_DIR_CONTEXT
6615 .ctx.actor = osd_ldiskfs_filldir,
6621 it->oie_dirent = it->oie_buf;
6622 it->oie_rd_dirent = 0;
6624 if (obj->oo_hl_head != NULL) {
6625 hlock = osd_oti_get(env)->oti_hlock;
6626 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
6627 inode, LDISKFS_HLOCK_READDIR);
6629 down_read(&obj->oo_ext_idx_sem);
6632 #ifdef HAVE_DIR_CONTEXT
6633 buf.ctx.pos = filp->f_pos;
6634 #ifdef HAVE_ITERATE_SHARED
6635 rc = inode->i_fop->iterate_shared(filp, &buf.ctx);
6637 rc = inode->i_fop->iterate(filp, &buf.ctx);
6639 filp->f_pos = buf.ctx.pos;
6641 rc = inode->i_fop->readdir(filp, &buf, osd_ldiskfs_filldir);
6645 ldiskfs_htree_unlock(hlock);
6647 up_read(&obj->oo_ext_idx_sem);
6649 if (it->oie_rd_dirent == 0) {
6651 * If it does not get any dirent, it means it has been reached
6652 * to the end of the dir
6654 it->oie_file.f_pos = ldiskfs_get_htree_eof(&it->oie_file);
6658 it->oie_dirent = it->oie_buf;
6659 it->oie_it_dirent = 1;
6666 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
6667 * to load a directory entry at a time and stored it in
6668 * iterator's in-memory data structure.
6670 * \param di iterator's in memory structure
6672 * \retval +ve iterator reached to end
6673 * \retval 0 iterator not reached to end
6674 * \retval -ve on error
6676 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
6678 struct osd_it_ea *it = (struct osd_it_ea *)di;
6683 if (it->oie_it_dirent < it->oie_rd_dirent) {
6685 (void *)it->oie_dirent +
6686 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
6687 it->oie_dirent->oied_namelen);
6688 it->oie_it_dirent++;
6691 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
6694 rc = osd_ldiskfs_it_fill(env, di);
6701 * Returns the key at current position from iterator's in memory structure.
6703 * \param di iterator's in memory structure
6705 * \retval key i.e. struct dt_key on success
6707 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
6708 const struct dt_it *di)
6710 struct osd_it_ea *it = (struct osd_it_ea *)di;
6712 return (struct dt_key *)it->oie_dirent->oied_name;
6716 * Returns key's size at current position from iterator's in memory structure.
6718 * \param di iterator's in memory structure
6720 * \retval key_size i.e. struct dt_key on success
6722 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
6724 struct osd_it_ea *it = (struct osd_it_ea *)di;
6726 return it->oie_dirent->oied_namelen;
6729 static inline bool osd_dotdot_has_space(struct ldiskfs_dir_entry_2 *de)
6731 if (LDISKFS_DIR_REC_LEN(de) >=
6732 __LDISKFS_DIR_REC_LEN(2 + 1 + sizeof(struct osd_fid_pack)))
6739 osd_dirent_has_space(struct ldiskfs_dir_entry_2 *de, __u16 namelen,
6740 unsigned int blocksize, bool dotdot)
6743 return osd_dotdot_has_space(de);
6745 if (ldiskfs_rec_len_from_disk(de->rec_len, blocksize) >=
6746 __LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
6753 osd_dirent_reinsert(const struct lu_env *env, struct osd_device *dev,
6754 handle_t *jh, struct dentry *dentry,
6755 const struct lu_fid *fid, struct buffer_head *bh,
6756 struct ldiskfs_dir_entry_2 *de, struct htree_lock *hlock,
6759 struct inode *dir = dentry->d_parent->d_inode;
6760 struct inode *inode = dentry->d_inode;
6761 struct osd_fid_pack *rec;
6762 struct ldiskfs_dentry_param *ldp;
6763 int namelen = dentry->d_name.len;
6765 struct osd_thread_info *info = osd_oti_get(env);
6769 if (!ldiskfs_has_feature_dirdata(inode->i_sb))
6772 /* There is enough space to hold the FID-in-dirent. */
6773 if (osd_dirent_has_space(de, namelen, dir->i_sb->s_blocksize, dotdot)) {
6774 rc = ldiskfs_journal_get_write_access(jh, bh);
6778 de->name[namelen] = 0;
6779 rec = (struct osd_fid_pack *)(de->name + namelen + 1);
6780 rec->fp_len = sizeof(struct lu_fid) + 1;
6781 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
6782 de->file_type |= LDISKFS_DIRENT_LUFID;
6783 rc = ldiskfs_handle_dirty_metadata(jh, NULL, bh);
6790 rc = ldiskfs_delete_entry(jh, dir, de, bh);
6794 ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
6795 osd_get_ldiskfs_dirent_param(ldp, fid);
6796 dentry->d_fsdata = (void *)ldp;
6797 ll_vfs_dq_init(dir);
6798 rc = osd_ldiskfs_add_entry(info, dev, jh, dentry, inode, hlock);
6800 * It is too bad, we cannot reinsert the name entry back.
6801 * That means we lose it!
6804 CDEBUG(D_LFSCK, "%s: fail to reinsert the dirent, "
6805 "dir = %lu/%u, name = %.*s, "DFID": rc = %d\n",
6806 osd_ino2name(inode),
6807 dir->i_ino, dir->i_generation, namelen,
6808 dentry->d_name.name, PFID(fid), rc);
6814 osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
6815 struct osd_it_ea *it, struct lu_fid *fid,
6816 struct osd_inode_id *id, __u32 *attr)
6818 struct osd_thread_info *info = osd_oti_get(env);
6819 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
6820 struct osd_device *dev = osd_obj2dev(obj);
6821 struct super_block *sb = osd_sb(dev);
6822 const char *devname = osd_name(dev);
6823 struct osd_it_ea_dirent *ent = it->oie_dirent;
6824 struct inode *dir = obj->oo_inode;
6825 struct htree_lock *hlock = NULL;
6826 struct buffer_head *bh = NULL;
6827 handle_t *jh = NULL;
6828 struct ldiskfs_dir_entry_2 *de;
6829 struct dentry *dentry;
6830 struct inode *inode;
6831 const struct lu_fid *pfid = lu_object_fid(&obj->oo_dt.do_lu);
6834 bool dotdot = false;
6839 if (ent->oied_name[0] == '.') {
6840 if (ent->oied_namelen == 1)
6843 if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
6847 osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
6848 inode = osd_iget(info, dev, id);
6849 if (IS_ERR(inode)) {
6850 rc = PTR_ERR(inode);
6851 if (rc == -ENOENT || rc == -ESTALE) {
6853 * Maybe dangling name entry, or
6854 * corrupted directory entry.
6856 *attr |= LUDA_UNKNOWN;
6859 CDEBUG(D_LFSCK, "%s: fail to iget() for dirent "
6860 "check_repair, dir = %lu/%u, name = %.*s, "
6861 "ino = %llu, rc = %d\n",
6862 devname, dir->i_ino, dir->i_generation,
6863 ent->oied_namelen, ent->oied_name,
6870 dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
6872 rc = osd_get_lma(info, inode, dentry, &info->oti_ost_attrs);
6873 if (rc == -ENODATA || !fid_is_sane(&lma->lma_self_fid))
6879 * We need to ensure that the name entry is still valid.
6880 * Because it may be removed or renamed by other already.
6882 * The unlink or rename operation will start journal before PDO lock,
6883 * so to avoid deadlock, here we need to start journal handle before
6884 * related PDO lock also. But because we do not know whether there
6885 * will be something to be repaired before PDO lock, we just start
6886 * journal without conditions.
6888 * We may need to remove the name entry firstly, then insert back.
6889 * One credit is for user quota file update.
6890 * One credit is for group quota file update.
6891 * Two credits are for dirty inode.
6893 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
6894 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
6896 if (dev->od_dirent_journal != 0) {
6899 jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
6902 CDEBUG(D_LFSCK, "%s: fail to start trans for dirent "
6903 "check_repair, dir = %lu/%u, credits = %d, "
6904 "name = %.*s, ino = %llu: rc = %d\n",
6905 devname, dir->i_ino, dir->i_generation, credits,
6906 ent->oied_namelen, ent->oied_name,
6909 GOTO(out_inode, rc);
6912 if (obj->oo_hl_head != NULL) {
6913 hlock = osd_oti_get(env)->oti_hlock;
6915 * "0" means exclusive lock for the whole directory.
6916 * We need to prevent others access such name entry
6917 * during the delete + insert. Neither HLOCK_ADD nor
6918 * HLOCK_DEL cannot guarantee the atomicity.
6920 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
6922 down_write(&obj->oo_ext_idx_sem);
6925 if (obj->oo_hl_head != NULL) {
6926 hlock = osd_oti_get(env)->oti_hlock;
6927 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
6928 LDISKFS_HLOCK_LOOKUP);
6930 down_read(&obj->oo_ext_idx_sem);
6934 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
6935 if (IS_ERR(bh) || le32_to_cpu(de->inode) != inode->i_ino) {
6936 *attr |= LUDA_IGNORE;
6942 * For dotdot entry, if there is not enough space to hold the
6943 * FID-in-dirent, just keep them there. It only happens when the
6944 * device upgraded from 1.8 or restored from MDT file-level backup.
6945 * For the whole directory, only dotdot entry have no FID-in-dirent
6946 * and needs to get FID from LMA when readdir, it will not affect the
6949 if (dotdot && !osd_dotdot_has_space(de)) {
6950 *attr |= LUDA_UNKNOWN;
6956 if (lu_fid_eq(fid, &lma->lma_self_fid))
6959 if (unlikely(lma->lma_compat & LMAC_NOT_IN_OI)) {
6960 struct lu_fid *tfid = &lma->lma_self_fid;
6962 if (likely(dotdot &&
6963 fid_seq(tfid) == FID_SEQ_LOCAL_FILE &&
6964 fid_oid(tfid) == REMOTE_PARENT_DIR_OID)) {
6966 * It must be REMOTE_PARENT_DIR and as the
6967 * 'dotdot' entry of remote directory
6969 *attr |= LUDA_IGNORE;
6971 CDEBUG(D_LFSCK, "%s: expect remote agent "
6972 "parent directory, but got %.*s under "
6973 "dir = %lu/%u with the FID "DFID"\n",
6974 devname, ent->oied_namelen,
6975 ent->oied_name, dir->i_ino,
6976 dir->i_generation, PFID(tfid));
6978 *attr |= LUDA_UNKNOWN;
6985 if (!fid_is_zero(fid)) {
6986 rc = osd_verify_ent_by_linkea(env, inode, pfid, ent->oied_name,
6988 if (rc == -ENOENT ||
6990 !(dev->od_scrub.os_scrub.os_file.sf_flags & SF_UPGRADE))) {
6992 * linkEA does not recognize the dirent entry,
6993 * it may because the dirent entry corruption
6994 * and points to other's inode.
6996 CDEBUG(D_LFSCK, "%s: the target inode does not "
6997 "recognize the dirent, dir = %lu/%u, "
6998 " name = %.*s, ino = %llu, "
6999 DFID": rc = %d\n", devname, dir->i_ino,
7000 dir->i_generation, ent->oied_namelen,
7001 ent->oied_name, ent->oied_ino, PFID(fid), rc);
7002 *attr |= LUDA_UNKNOWN;
7007 if (rc && rc != -ENODATA) {
7008 CDEBUG(D_LFSCK, "%s: fail to verify FID in the dirent, "
7009 "dir = %lu/%u, name = %.*s, ino = %llu, "
7010 DFID": rc = %d\n", devname, dir->i_ino,
7011 dir->i_generation, ent->oied_namelen,
7012 ent->oied_name, ent->oied_ino, PFID(fid), rc);
7013 *attr |= LUDA_UNKNOWN;
7021 * linkEA recognizes the dirent entry, the FID-in-LMA is
7022 * valid, trusted, in spite of fid_is_sane(fid) or not.
7024 if (*attr & LUDA_VERIFY_DRYRUN) {
7025 *fid = lma->lma_self_fid;
7026 *attr |= LUDA_REPAIR;
7033 dev->od_dirent_journal = 1;
7034 if (hlock != NULL) {
7035 ldiskfs_htree_unlock(hlock);
7038 up_read(&obj->oo_ext_idx_sem);
7044 *fid = lma->lma_self_fid;
7046 /* Update or append the FID-in-dirent. */
7047 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
7048 bh, de, hlock, dotdot);
7050 *attr |= LUDA_REPAIR;
7052 CDEBUG(D_LFSCK, "%s: fail to re-insert FID after "
7053 "the dirent, dir = %lu/%u, name = %.*s, "
7054 "ino = %llu, "DFID": rc = %d\n",
7055 devname, dir->i_ino, dir->i_generation,
7056 ent->oied_namelen, ent->oied_name,
7057 ent->oied_ino, PFID(fid), rc);
7059 /* lma is NULL, trust the FID-in-dirent if it is valid. */
7060 if (*attr & LUDA_VERIFY_DRYRUN) {
7061 if (fid_is_sane(fid)) {
7062 *attr |= LUDA_REPAIR;
7063 } else if (dev->od_index == 0) {
7064 lu_igif_build(fid, inode->i_ino,
7065 inode->i_generation);
7066 *attr |= LUDA_UPGRADE;
7074 dev->od_dirent_journal = 1;
7075 if (hlock != NULL) {
7076 ldiskfs_htree_unlock(hlock);
7079 up_read(&obj->oo_ext_idx_sem);
7086 if (unlikely(fid_is_sane(fid))) {
7088 * FID-in-dirent exists, but FID-in-LMA is lost.
7089 * Trust the FID-in-dirent, and add FID-in-LMA.
7091 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
7093 *attr |= LUDA_REPAIR;
7095 CDEBUG(D_LFSCK, "%s: fail to set LMA for "
7096 "update dirent, dir = %lu/%u, "
7097 "name = %.*s, ino = %llu, "
7099 devname, dir->i_ino, dir->i_generation,
7100 ent->oied_namelen, ent->oied_name,
7101 ent->oied_ino, PFID(fid), rc);
7102 } else if (dev->od_index == 0) {
7103 lu_igif_build(fid, inode->i_ino, inode->i_generation);
7105 * It is probably IGIF object. Only aappend the
7106 * FID-in-dirent. OI scrub will process FID-in-LMA.
7108 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
7109 bh, de, hlock, dotdot);
7111 *attr |= LUDA_UPGRADE;
7113 CDEBUG(D_LFSCK, "%s: fail to append IGIF "
7114 "after the dirent, dir = %lu/%u, "
7115 "name = %.*s, ino = %llu, "
7117 devname, dir->i_ino, dir->i_generation,
7118 ent->oied_namelen, ent->oied_name,
7119 ent->oied_ino, PFID(fid), rc);
7128 if (hlock != NULL) {
7129 ldiskfs_htree_unlock(hlock);
7131 if (dev->od_dirent_journal != 0)
7132 up_write(&obj->oo_ext_idx_sem);
7134 up_read(&obj->oo_ext_idx_sem);
7138 ldiskfs_journal_stop(jh);
7142 if (rc >= 0 && !dirty)
7143 dev->od_dirent_journal = 0;
7149 * Returns the value at current position from iterator's in memory structure.
7151 * \param di struct osd_it_ea, iterator's in memory structure
7152 * \param attr attr requested for dirent.
7153 * \param lde lustre dirent
7155 * \retval 0 no error and \param lde has correct lustre dirent.
7156 * \retval -ve on error
7158 static inline int osd_it_ea_rec(const struct lu_env *env,
7159 const struct dt_it *di,
7160 struct dt_rec *dtrec, __u32 attr)
7162 struct osd_it_ea *it = (struct osd_it_ea *)di;
7163 struct osd_object *obj = it->oie_obj;
7164 struct osd_device *dev = osd_obj2dev(obj);
7165 struct osd_thread_info *oti = osd_oti_get(env);
7166 struct osd_inode_id *id = &oti->oti_id;
7167 struct lu_fid *fid = &it->oie_dirent->oied_fid;
7168 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
7169 __u32 ino = it->oie_dirent->oied_ino;
7174 LASSERT(!is_remote_parent_ino(dev, obj->oo_inode->i_ino));
7176 if (attr & LUDA_VERIFY) {
7177 if (unlikely(is_remote_parent_ino(dev, ino))) {
7178 attr |= LUDA_IGNORE;
7180 * If the parent is on remote MDT, and there
7181 * is no FID-in-dirent, then we have to get
7182 * the parent FID from the linkEA.
7184 if (!fid_is_sane(fid) &&
7185 it->oie_dirent->oied_namelen == 2 &&
7186 it->oie_dirent->oied_name[0] == '.' &&
7187 it->oie_dirent->oied_name[1] == '.')
7188 osd_get_pfid_from_linkea(env, obj, fid);
7190 rc = osd_dirent_check_repair(env, obj, it, fid, id,
7194 if (!fid_is_sane(fid))
7195 attr |= LUDA_UNKNOWN;
7197 attr &= ~LU_DIRENT_ATTRS_MASK;
7198 if (!fid_is_sane(fid)) {
7199 bool is_dotdot = false;
7201 if (it->oie_dirent->oied_namelen == 2 &&
7202 it->oie_dirent->oied_name[0] == '.' &&
7203 it->oie_dirent->oied_name[1] == '.')
7206 * If the parent is on remote MDT, and there
7207 * is no FID-in-dirent, then we have to get
7208 * the parent FID from the linkEA.
7210 if (is_remote_parent_ino(dev, ino) && is_dotdot) {
7211 rc = osd_get_pfid_from_linkea(env, obj, fid);
7213 if (is_dotdot == false &&
7214 OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP))
7217 rc = osd_ea_fid_get(env, obj, ino, fid, id);
7220 osd_id_gen(id, ino, OSD_OII_NOGEN);
7224 /* Pack the entry anyway, at least the offset is right. */
7225 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
7226 it->oie_dirent->oied_name,
7227 it->oie_dirent->oied_namelen,
7228 it->oie_dirent->oied_type, attr);
7233 if (osd_remote_fid(env, dev, fid))
7236 if (likely(!(attr & (LUDA_IGNORE | LUDA_UNKNOWN)) && rc == 0))
7237 osd_add_oi_cache(oti, dev, id, fid);
7239 RETURN(rc > 0 ? 0 : rc);
7243 * Returns the record size size at current position.
7245 * This function will return record(lu_dirent) size in bytes.
7247 * \param[in] env execution environment
7248 * \param[in] di iterator's in memory structure
7249 * \param[in] attr attribute of the entry, only requires LUDA_TYPE to
7250 * calculate the lu_dirent size.
7252 * \retval record size(in bytes & in memory) of the current lu_dirent
7255 static int osd_it_ea_rec_size(const struct lu_env *env, const struct dt_it *di,
7258 struct osd_it_ea *it = (struct osd_it_ea *)di;
7260 return lu_dirent_calc_size(it->oie_dirent->oied_namelen, attr);
7264 * Returns a cookie for current position of the iterator head, so that
7265 * user can use this cookie to load/start the iterator next time.
7267 * \param di iterator's in memory structure
7269 * \retval cookie for current position, on success
7271 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
7273 struct osd_it_ea *it = (struct osd_it_ea *)di;
7275 return it->oie_dirent->oied_off;
7279 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
7280 * to load a directory entry at a time and stored it i inn,
7281 * in iterator's in-memory data structure.
7283 * \param di struct osd_it_ea, iterator's in memory structure
7285 * \retval +ve on success
7286 * \retval -ve on error
7288 static int osd_it_ea_load(const struct lu_env *env,
7289 const struct dt_it *di, __u64 hash)
7291 struct osd_it_ea *it = (struct osd_it_ea *)di;
7295 it->oie_file.f_pos = hash;
7297 rc = osd_ldiskfs_it_fill(env, di);
7308 * Index lookup function for interoperability mode (b11826).
7310 * \param key, key i.e. file name to be searched
7312 * \retval +ve, on success
7313 * \retval -ve, on error
7315 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
7316 struct dt_rec *rec, const struct dt_key *key)
7318 struct osd_object *obj = osd_dt_obj(dt);
7323 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
7324 LINVRNT(osd_invariant(obj));
7326 rc = osd_ea_lookup_rec(env, obj, rec, key);
7333 * Index and Iterator operations for interoperability
7334 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
7336 static const struct dt_index_operations osd_index_ea_ops = {
7337 .dio_lookup = osd_index_ea_lookup,
7338 .dio_declare_insert = osd_index_declare_ea_insert,
7339 .dio_insert = osd_index_ea_insert,
7340 .dio_declare_delete = osd_index_declare_ea_delete,
7341 .dio_delete = osd_index_ea_delete,
7343 .init = osd_it_ea_init,
7344 .fini = osd_it_ea_fini,
7345 .get = osd_it_ea_get,
7346 .put = osd_it_ea_put,
7347 .next = osd_it_ea_next,
7348 .key = osd_it_ea_key,
7349 .key_size = osd_it_ea_key_size,
7350 .rec = osd_it_ea_rec,
7351 .rec_size = osd_it_ea_rec_size,
7352 .store = osd_it_ea_store,
7353 .load = osd_it_ea_load
7357 static void *osd_key_init(const struct lu_context *ctx,
7358 struct lu_context_key *key)
7360 struct osd_thread_info *info;
7362 OBD_ALLOC_PTR(info);
7364 return ERR_PTR(-ENOMEM);
7366 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7367 if (info->oti_it_ea_buf == NULL)
7370 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
7372 info->oti_hlock = ldiskfs_htree_lock_alloc();
7373 if (info->oti_hlock == NULL)
7379 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7382 return ERR_PTR(-ENOMEM);
7385 static void osd_key_fini(const struct lu_context *ctx,
7386 struct lu_context_key *key, void *data)
7388 struct osd_thread_info *info = data;
7389 struct ldiskfs_inode_info *lli = LDISKFS_I(info->oti_inode);
7390 struct osd_idmap_cache *idc = info->oti_ins_cache;
7392 if (info->oti_dio_pages) {
7394 for (i = 0; i < PTLRPC_MAX_BRW_PAGES; i++) {
7395 if (info->oti_dio_pages[i])
7396 __free_page(info->oti_dio_pages[i]);
7398 OBD_FREE(info->oti_dio_pages,
7399 sizeof(struct page *) * PTLRPC_MAX_BRW_PAGES);
7402 if (info->oti_inode != NULL)
7404 if (info->oti_hlock != NULL)
7405 ldiskfs_htree_lock_free(info->oti_hlock);
7406 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7407 lu_buf_free(&info->oti_iobuf.dr_pg_buf);
7408 lu_buf_free(&info->oti_iobuf.dr_bl_buf);
7409 lu_buf_free(&info->oti_iobuf.dr_lnb_buf);
7410 lu_buf_free(&info->oti_big_buf);
7412 LASSERT(info->oti_ins_cache_size > 0);
7413 OBD_FREE(idc, sizeof(*idc) * info->oti_ins_cache_size);
7414 info->oti_ins_cache = NULL;
7415 info->oti_ins_cache_size = 0;
7420 static void osd_key_exit(const struct lu_context *ctx,
7421 struct lu_context_key *key, void *data)
7423 struct osd_thread_info *info = data;
7425 LASSERT(info->oti_r_locks == 0);
7426 LASSERT(info->oti_w_locks == 0);
7427 LASSERT(info->oti_txns == 0);
7430 /* type constructor/destructor: osd_type_init, osd_type_fini */
7431 LU_TYPE_INIT_FINI(osd, &osd_key);
7433 struct lu_context_key osd_key = {
7434 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
7435 .lct_init = osd_key_init,
7436 .lct_fini = osd_key_fini,
7437 .lct_exit = osd_key_exit
7441 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
7442 const char *name, struct lu_device *next)
7444 struct osd_device *osd = osd_dev(d);
7446 if (strlcpy(osd->od_svname, name, sizeof(osd->od_svname)) >=
7447 sizeof(osd->od_svname))
7449 return osd_procfs_init(osd, name);
7452 static int osd_fid_init(const struct lu_env *env, struct osd_device *osd)
7454 struct seq_server_site *ss = osd_seq_site(osd);
7459 if (osd->od_is_ost || osd->od_cl_seq != NULL)
7462 if (unlikely(ss == NULL))
7465 OBD_ALLOC_PTR(osd->od_cl_seq);
7466 if (osd->od_cl_seq == NULL)
7469 rc = seq_client_init(osd->od_cl_seq, NULL, LUSTRE_SEQ_METADATA,
7470 osd->od_svname, ss->ss_server_seq);
7472 OBD_FREE_PTR(osd->od_cl_seq);
7473 osd->od_cl_seq = NULL;
7477 if (ss->ss_node_id == 0) {
7479 * If the OSD on the sequence controller(MDT0), then allocate
7480 * sequence here, otherwise allocate sequence after connected
7481 * to MDT0 (see mdt_register_lwp_callback()).
7483 rc = seq_server_alloc_meta(osd->od_cl_seq->lcs_srv,
7484 &osd->od_cl_seq->lcs_space, env);
7490 static void osd_fid_fini(const struct lu_env *env, struct osd_device *osd)
7492 if (osd->od_cl_seq == NULL)
7495 seq_client_fini(osd->od_cl_seq);
7496 OBD_FREE_PTR(osd->od_cl_seq);
7497 osd->od_cl_seq = NULL;
7500 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
7504 /* shutdown quota slave instance associated with the device */
7505 if (o->od_quota_slave_md != NULL) {
7506 struct qsd_instance *qsd = o->od_quota_slave_md;
7508 o->od_quota_slave_md = NULL;
7512 if (o->od_quota_slave_dt != NULL) {
7513 struct qsd_instance *qsd = o->od_quota_slave_dt;
7515 o->od_quota_slave_dt = NULL;
7519 osd_fid_fini(env, o);
7520 osd_scrub_cleanup(env, o);
7525 static void osd_umount(const struct lu_env *env, struct osd_device *o)
7529 if (o->od_mnt != NULL) {
7530 shrink_dcache_sb(osd_sb(o));
7531 osd_sync(env, &o->od_dt_dev);
7540 static int osd_mount(const struct lu_env *env,
7541 struct osd_device *o, struct lustre_cfg *cfg)
7543 const char *name = lustre_cfg_string(cfg, 0);
7544 const char *dev = lustre_cfg_string(cfg, 1);
7546 unsigned long page, s_flags, lmd_flags = 0;
7547 struct page *__page;
7548 struct file_system_type *type;
7549 char *options = NULL;
7551 struct osd_thread_info *info = osd_oti_get(env);
7552 struct lu_fid *fid = &info->oti_fid;
7553 struct inode *inode;
7554 int rc = 0, force_over_512tb = 0;
7558 if (o->od_mnt != NULL)
7561 if (strlen(dev) >= sizeof(o->od_mntdev))
7563 strcpy(o->od_mntdev, dev);
7565 str = lustre_cfg_string(cfg, 2);
7566 s_flags = simple_strtoul(str, NULL, 0);
7567 str = strstr(str, ":");
7569 lmd_flags = simple_strtoul(str + 1, NULL, 0);
7570 opts = lustre_cfg_string(cfg, 3);
7572 if (opts == NULL || strstr(opts, "bigendian_extents") == NULL) {
7573 CERROR("%s: device %s extents feature is not guaranteed to "
7574 "work on big-endian systems. Use \"bigendian_extents\" "
7575 "mount option to override.\n", name, dev);
7579 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7580 if (opts != NULL && strstr(opts, "force_over_128tb") != NULL) {
7581 CWARN("force_over_128tb option is deprecated. "
7582 "Filesystems less than 512TB can be created without any "
7583 "force options. Use force_over_512tb option for "
7584 "filesystems greater than 512TB.\n");
7587 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 1, 53, 0)
7588 if (opts != NULL && strstr(opts, "force_over_256tb") != NULL) {
7589 CWARN("force_over_256tb option is deprecated. "
7590 "Filesystems less than 512TB can be created without any "
7591 "force options. Use force_over_512tb option for "
7592 "filesystems greater than 512TB.\n");
7596 if (opts != NULL && strstr(opts, "force_over_512tb") != NULL)
7597 force_over_512tb = 1;
7599 __page = alloc_page(GFP_KERNEL);
7601 GOTO(out, rc = -ENOMEM);
7602 page = (unsigned long)page_address(__page);
7603 options = (char *)page;
7606 /* strip out the options for back compatiblity */
7607 static char *sout[] = {
7614 /* strip out option we processed in osd */
7615 "bigendian_extents",
7621 strncat(options, opts, PAGE_SIZE);
7622 for (rc = 0, str = options; sout[rc]; ) {
7623 char *op = strstr(str, sout[rc]);
7630 if (op == options || *(op - 1) == ',') {
7631 str = op + strlen(sout[rc]);
7632 if (*str == ',' || *str == '\0') {
7633 *str == ',' ? str++ : str;
7634 memmove(op, str, strlen(str) + 1);
7637 for (str = op; *str != ',' && *str != '\0'; str++)
7641 strncat(options, "user_xattr,acl", PAGE_SIZE);
7644 /* Glom up mount options */
7645 if (*options != '\0')
7646 strncat(options, ",", PAGE_SIZE);
7647 strncat(options, "no_mbcache,nodelalloc", PAGE_SIZE);
7649 type = get_fs_type("ldiskfs");
7651 CERROR("%s: cannot find ldiskfs module\n", name);
7652 GOTO(out, rc = -ENODEV);
7655 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
7656 module_put(type->owner);
7658 if (IS_ERR(o->od_mnt)) {
7659 rc = PTR_ERR(o->od_mnt);
7661 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
7665 if (ldiskfs_blocks_count(LDISKFS_SB(osd_sb(o))->s_es) <<
7666 osd_sb(o)->s_blocksize_bits > 512ULL << 40 &&
7667 force_over_512tb == 0) {
7668 CERROR("%s: device %s LDISKFS does not support filesystems "
7669 "greater than 512TB and can cause data corruption. "
7670 "Use \"force_over_512tb\" mount option to override.\n",
7672 GOTO(out_mnt, rc = -EINVAL);
7675 if (lmd_flags & LMD_FLG_DEV_RDONLY) {
7676 if (priv_dev_set_rdonly) {
7677 priv_dev_set_rdonly(osd_sb(o)->s_bdev);
7678 o->od_dt_dev.dd_rdonly = 1;
7679 LCONSOLE_WARN("%s: set dev_rdonly on this device\n",
7682 LCONSOLE_WARN("%s: not support dev_rdonly on this device",
7685 GOTO(out_mnt, rc = -EOPNOTSUPP);
7687 } else if (priv_dev_check_rdonly &&
7688 priv_dev_check_rdonly(osd_sb(o)->s_bdev)) {
7689 CERROR("%s: underlying device %s is marked as "
7690 "read-only. Setup failed\n", name, dev);
7692 GOTO(out_mnt, rc = -EROFS);
7695 if (!ldiskfs_has_feature_journal(o->od_mnt->mnt_sb)) {
7696 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
7697 GOTO(out_mnt, rc = -EINVAL);
7700 #ifdef LDISKFS_MOUNT_DIRDATA
7701 if (ldiskfs_has_feature_dirdata(o->od_mnt->mnt_sb))
7702 LDISKFS_SB(osd_sb(o))->s_mount_opt |= LDISKFS_MOUNT_DIRDATA;
7703 else if (strstr(name, "MDT")) /* don't complain for MGT or OSTs */
7704 CWARN("%s: device %s was upgraded from Lustre-1.x without "
7705 "enabling the dirdata feature. If you do not want to "
7706 "downgrade to Lustre-1.x again, you can enable it via "
7707 "'tune2fs -O dirdata device'\n", name, dev);
7709 inode = osd_sb(o)->s_root->d_inode;
7710 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
7711 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
7713 CERROR("%s: failed to set lma on %s root inode\n", name, dev);
7717 if (lmd_flags & LMD_FLG_NOSCRUB)
7718 o->od_auto_scrub_interval = AS_NEVER;
7720 if (blk_queue_nonrot(bdev_get_queue(osd_sb(o)->s_bdev))) {
7721 /* do not use pagecache with flash-backed storage */
7722 o->od_writethrough_cache = 0;
7723 o->od_read_cache = 0;
7734 __free_page(__page);
7739 static struct lu_device *osd_device_fini(const struct lu_env *env,
7740 struct lu_device *d)
7742 struct osd_device *o = osd_dev(d);
7746 osd_index_backup(env, o, false);
7747 osd_shutdown(env, o);
7749 osd_obj_map_fini(o);
7755 static int osd_device_init0(const struct lu_env *env,
7756 struct osd_device *o,
7757 struct lustre_cfg *cfg)
7759 struct lu_device *l = osd2lu_dev(o);
7760 struct osd_thread_info *info;
7764 /* if the module was re-loaded, env can loose its keys */
7765 rc = lu_env_refill((struct lu_env *)env);
7768 info = osd_oti_get(env);
7771 l->ld_ops = &osd_lu_ops;
7772 o->od_dt_dev.dd_ops = &osd_dt_ops;
7774 spin_lock_init(&o->od_osfs_lock);
7775 mutex_init(&o->od_otable_mutex);
7776 INIT_LIST_HEAD(&o->od_orphan_list);
7777 INIT_LIST_HEAD(&o->od_index_backup_list);
7778 INIT_LIST_HEAD(&o->od_index_restore_list);
7779 spin_lock_init(&o->od_lock);
7780 o->od_index_backup_policy = LIBP_NONE;
7783 o->od_read_cache = 1;
7784 o->od_writethrough_cache = 1;
7785 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
7787 o->od_auto_scrub_interval = AS_DEFAULT;
7789 cplen = strlcpy(o->od_svname, lustre_cfg_string(cfg, 4),
7790 sizeof(o->od_svname));
7791 if (cplen >= sizeof(o->od_svname)) {
7796 o->od_index_backup_stop = 0;
7797 o->od_index = -1; /* -1 means index is invalid */
7798 rc = server_name2index(o->od_svname, &o->od_index, NULL);
7799 if (rc == LDD_F_SV_TYPE_OST)
7802 o->od_full_scrub_ratio = OFSR_DEFAULT;
7803 o->od_full_scrub_threshold_rate = FULL_SCRUB_THRESHOLD_RATE_DEFAULT;
7804 rc = osd_mount(env, o, cfg);
7808 /* Can only check block device after mount */
7809 o->od_nonrotational =
7810 blk_queue_nonrot(bdev_get_queue(osd_sb(o)->s_bdev));
7812 rc = osd_obj_map_init(env, o);
7816 rc = lu_site_init(&o->od_site, l);
7818 GOTO(out_compat, rc);
7819 o->od_site.ls_bottom_dev = l;
7821 rc = lu_site_init_finish(&o->od_site);
7825 INIT_LIST_HEAD(&o->od_ios_list);
7826 /* setup scrub, including OI files initialization */
7828 rc = osd_scrub_setup(env, o);
7833 rc = osd_procfs_init(o, o->od_svname);
7835 CERROR("%s: can't initialize procfs: rc = %d\n",
7837 GOTO(out_scrub, rc);
7840 LASSERT(l->ld_site->ls_linkage.next != NULL);
7841 LASSERT(l->ld_site->ls_linkage.prev != NULL);
7843 /* initialize quota slave instance */
7844 /* currently it's no need to prepare qsd_instance_md for OST */
7845 if (!o->od_is_ost) {
7846 o->od_quota_slave_md = qsd_init(env, o->od_svname,
7848 o->od_proc_entry, true);
7849 if (IS_ERR(o->od_quota_slave_md)) {
7850 rc = PTR_ERR(o->od_quota_slave_md);
7851 o->od_quota_slave_md = NULL;
7852 GOTO(out_procfs, rc);
7856 o->od_quota_slave_dt = qsd_init(env, o->od_svname, &o->od_dt_dev,
7857 o->od_proc_entry, false);
7859 if (IS_ERR(o->od_quota_slave_dt)) {
7860 if (o->od_quota_slave_md != NULL) {
7861 qsd_fini(env, o->od_quota_slave_md);
7862 o->od_quota_slave_md = NULL;
7865 rc = PTR_ERR(o->od_quota_slave_dt);
7866 o->od_quota_slave_dt = NULL;
7867 GOTO(out_procfs, rc);
7875 osd_scrub_cleanup(env, o);
7877 lu_site_fini(&o->od_site);
7879 osd_obj_map_fini(o);
7886 static struct lu_device *osd_device_alloc(const struct lu_env *env,
7887 struct lu_device_type *t,
7888 struct lustre_cfg *cfg)
7890 struct osd_device *o;
7895 return ERR_PTR(-ENOMEM);
7897 rc = dt_device_init(&o->od_dt_dev, t);
7900 * Because the ctx might be revived in dt_device_init,
7901 * refill the env here
7903 lu_env_refill((struct lu_env *)env);
7904 rc = osd_device_init0(env, o, cfg);
7906 dt_device_fini(&o->od_dt_dev);
7909 if (unlikely(rc != 0))
7912 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
7915 static struct lu_device *osd_device_free(const struct lu_env *env,
7916 struct lu_device *d)
7918 struct osd_device *o = osd_dev(d);
7922 /* XXX: make osd top device in order to release reference */
7923 d->ld_site->ls_top_dev = d;
7924 lu_site_purge(env, d->ld_site, -1);
7925 if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
7926 LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
7927 lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
7929 lu_site_fini(&o->od_site);
7930 dt_device_fini(&o->od_dt_dev);
7935 static int osd_process_config(const struct lu_env *env,
7936 struct lu_device *d, struct lustre_cfg *cfg)
7938 struct osd_device *o = osd_dev(d);
7944 switch (cfg->lcfg_command) {
7946 rc = osd_mount(env, o, cfg);
7950 * For the case LCFG_PRE_CLEANUP is not called in advance,
7951 * that may happend if hit failure during mount process.
7953 osd_index_backup(env, o, false);
7954 lu_dev_del_linkage(d->ld_site, d);
7955 rc = osd_shutdown(env, o);
7958 LASSERT(&o->od_dt_dev);
7959 count = class_modify_config(cfg, PARAM_OSD,
7960 &o->od_dt_dev.dd_kobj);
7962 count = class_modify_config(cfg, PARAM_OST,
7963 &o->od_dt_dev.dd_kobj);
7964 rc = count > 0 ? 0 : count;
7966 case LCFG_PRE_CLEANUP:
7968 osd_index_backup(env, o,
7969 o->od_index_backup_policy != LIBP_NONE);
7979 static int osd_recovery_complete(const struct lu_env *env,
7980 struct lu_device *d)
7982 struct osd_device *osd = osd_dev(d);
7987 if (osd->od_quota_slave_md == NULL && osd->od_quota_slave_dt == NULL)
7991 * start qsd instance on recovery completion, this notifies the quota
7992 * slave code that we are about to process new requests now
7994 rc = qsd_start(env, osd->od_quota_slave_dt);
7995 if (rc == 0 && osd->od_quota_slave_md != NULL)
7996 rc = qsd_start(env, osd->od_quota_slave_md);
8002 * we use exports to track all osd users
8004 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
8005 struct obd_device *obd, struct obd_uuid *cluuid,
8006 struct obd_connect_data *data, void *localdata)
8008 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8009 struct lustre_handle conn;
8014 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
8016 rc = class_connect(&conn, obd, cluuid);
8020 *exp = class_conn2export(&conn);
8022 spin_lock(&osd->od_osfs_lock);
8024 spin_unlock(&osd->od_osfs_lock);
8030 * once last export (we don't count self-export) disappeared
8031 * osd can be released
8033 static int osd_obd_disconnect(struct obd_export *exp)
8035 struct obd_device *obd = exp->exp_obd;
8036 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8037 int rc, release = 0;
8041 /* Only disconnect the underlying layers on the final disconnect. */
8042 spin_lock(&osd->od_osfs_lock);
8044 if (osd->od_connects == 0)
8046 spin_unlock(&osd->od_osfs_lock);
8048 rc = class_disconnect(exp); /* bz 9811 */
8050 if (rc == 0 && release)
8051 class_manual_cleanup(obd);
8055 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
8056 struct lu_device *dev)
8058 struct osd_device *osd = osd_dev(dev);
8059 struct lr_server_data *lsd =
8060 &osd->od_dt_dev.dd_lu_dev.ld_site->ls_tgt->lut_lsd;
8065 if (osd->od_quota_slave_md != NULL) {
8066 /* set up quota slave objects for inode */
8067 result = qsd_prepare(env, osd->od_quota_slave_md);
8072 if (osd->od_quota_slave_dt != NULL) {
8073 /* set up quota slave objects for block */
8074 result = qsd_prepare(env, osd->od_quota_slave_dt);
8080 if (lsd->lsd_feature_incompat & OBD_COMPAT_OST) {
8081 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
8082 if (lsd->lsd_feature_rocompat & OBD_ROCOMPAT_IDX_IN_IDIF) {
8083 osd->od_index_in_idif = 1;
8085 osd->od_index_in_idif = 0;
8086 result = osd_register_proc_index_in_idif(osd);
8091 osd->od_index_in_idif = 1;
8095 result = osd_fid_init(env, osd);
8100 static int osd_fid_alloc(const struct lu_env *env, struct obd_export *exp,
8101 struct lu_fid *fid, struct md_op_data *op_data)
8103 struct osd_device *osd = osd_dev(exp->exp_obd->obd_lu_dev);
8105 return seq_client_alloc_fid(env, osd->od_cl_seq, fid);
8108 static const struct lu_object_operations osd_lu_obj_ops = {
8109 .loo_object_init = osd_object_init,
8110 .loo_object_delete = osd_object_delete,
8111 .loo_object_release = osd_object_release,
8112 .loo_object_free = osd_object_free,
8113 .loo_object_print = osd_object_print,
8114 .loo_object_invariant = osd_object_invariant
8117 const struct lu_device_operations osd_lu_ops = {
8118 .ldo_object_alloc = osd_object_alloc,
8119 .ldo_process_config = osd_process_config,
8120 .ldo_recovery_complete = osd_recovery_complete,
8121 .ldo_prepare = osd_prepare,
8124 static const struct lu_device_type_operations osd_device_type_ops = {
8125 .ldto_init = osd_type_init,
8126 .ldto_fini = osd_type_fini,
8128 .ldto_start = osd_type_start,
8129 .ldto_stop = osd_type_stop,
8131 .ldto_device_alloc = osd_device_alloc,
8132 .ldto_device_free = osd_device_free,
8134 .ldto_device_init = osd_device_init,
8135 .ldto_device_fini = osd_device_fini
8138 static struct lu_device_type osd_device_type = {
8139 .ldt_tags = LU_DEVICE_DT,
8140 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
8141 .ldt_ops = &osd_device_type_ops,
8142 .ldt_ctx_tags = LCT_LOCAL,
8145 static int osd_health_check(const struct lu_env *env, struct obd_device *obd)
8147 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8148 struct super_block *sb = osd_sb(osd);
8150 return (osd->od_mnt == NULL || sb->s_flags & MS_RDONLY);
8154 * lprocfs legacy support.
8156 static struct obd_ops osd_obd_device_ops = {
8157 .o_owner = THIS_MODULE,
8158 .o_connect = osd_obd_connect,
8159 .o_disconnect = osd_obd_disconnect,
8160 .o_fid_alloc = osd_fid_alloc,
8161 .o_health_check = osd_health_check,
8164 static ssize_t track_declares_assert_show(struct kobject *kobj,
8165 struct attribute *attr,
8168 return sprintf(buf, "%d\n", ldiskfs_track_declares_assert);
8171 static ssize_t track_declares_assert_store(struct kobject *kobj,
8172 struct attribute *attr,
8173 const char *buffer, size_t count)
8175 bool track_declares_assert;
8178 rc = kstrtobool(buffer, &track_declares_assert);
8182 ldiskfs_track_declares_assert = track_declares_assert;
8186 LUSTRE_RW_ATTR(track_declares_assert);
8188 static int __init osd_init(void)
8190 struct kobject *kobj;
8193 CLASSERT(BH_DXLock < sizeof(((struct buffer_head *)0)->b_state) * 8);
8194 #if !defined(CONFIG_DEBUG_MUTEXES) && !defined(CONFIG_DEBUG_SPINLOCK)
8195 /* please, try to keep osd_thread_info smaller than a page */
8196 CLASSERT(sizeof(struct osd_thread_info) <= PAGE_SIZE);
8201 rc = lu_kmem_init(ldiskfs_caches);
8205 #ifdef CONFIG_KALLSYMS
8206 priv_dev_set_rdonly = (void *)kallsyms_lookup_name("dev_set_rdonly");
8207 priv_dev_check_rdonly =
8208 (void *)kallsyms_lookup_name("dev_check_rdonly");
8211 rc = class_register_type(&osd_obd_device_ops, NULL, true, NULL,
8212 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
8214 lu_kmem_fini(ldiskfs_caches);
8218 kobj = kset_find_obj(lustre_kset, LUSTRE_OSD_LDISKFS_NAME);
8220 rc = sysfs_create_file(kobj,
8221 &lustre_attr_track_declares_assert.attr);
8224 CWARN("osd-ldiskfs: track_declares_assert failed to register with sysfs\n");
8231 static void __exit osd_exit(void)
8233 struct kobject *kobj;
8235 kobj = kset_find_obj(lustre_kset, LUSTRE_OSD_LDISKFS_NAME);
8237 sysfs_remove_file(kobj,
8238 &lustre_attr_track_declares_assert.attr);
8241 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
8242 lu_kmem_fini(ldiskfs_caches);
8245 MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
8246 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
8247 MODULE_VERSION(LUSTRE_VERSION_STRING);
8248 MODULE_LICENSE("GPL");
8250 module_init(osd_init);
8251 module_exit(osd_exit);