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, 2016, 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/module.h>
43 #include <linux/user_namespace.h>
44 #ifdef HAVE_UIDGID_HEADER
45 # include <linux/uidgid.h>
48 /* LUSTRE_VERSION_CODE */
49 #include <lustre_ver.h>
50 /* prerequisite for linux/xattr.h */
51 #include <linux/types.h>
52 /* prerequisite for linux/xattr.h */
54 /* XATTR_{REPLACE,CREATE} */
55 #include <linux/xattr.h>
57 #include <ldiskfs/ldiskfs.h>
58 #include <ldiskfs/xattr.h>
59 #include <ldiskfs/ldiskfs_extents.h>
62 * struct OBD_{ALLOC,FREE}*()
65 #include <obd_support.h>
66 /* struct ptlrpc_thread */
67 #include <lustre_net.h>
68 #include <lustre_fid.h>
70 #include <uapi/linux/lustre_param.h>
72 #include "osd_internal.h"
73 #include "osd_dynlocks.h"
75 /* llo_* api support */
76 #include <md_object.h>
77 #include <lustre_quota.h>
79 #include <lustre_linkea.h>
81 #define PFID_STRIPE_IDX_BITS 16
82 #define PFID_STRIPE_COUNT_MASK ((1 << PFID_STRIPE_IDX_BITS) - 1)
85 module_param(ldiskfs_pdo, int, 0644);
86 MODULE_PARM_DESC(ldiskfs_pdo, "ldiskfs with parallel directory operations");
88 int ldiskfs_track_declares_assert;
89 module_param(ldiskfs_track_declares_assert, int, 0644);
90 MODULE_PARM_DESC(ldiskfs_track_declares_assert, "LBUG during tracking of declares");
92 /* Slab to allocate dynlocks */
93 struct kmem_cache *dynlock_cachep;
95 /* Slab to allocate osd_it_ea */
96 struct kmem_cache *osd_itea_cachep;
98 static struct lu_kmem_descr ldiskfs_caches[] = {
100 .ckd_cache = &dynlock_cachep,
101 .ckd_name = "dynlock_cache",
102 .ckd_size = sizeof(struct dynlock_handle)
105 .ckd_cache = &osd_itea_cachep,
106 .ckd_name = "osd_itea_cache",
107 .ckd_size = sizeof(struct osd_it_ea)
114 static const char dot[] = ".";
115 static const char dotdot[] = "..";
117 static const struct lu_object_operations osd_lu_obj_ops;
118 static const struct dt_object_operations osd_obj_ops;
119 static const struct dt_object_operations osd_obj_otable_it_ops;
120 static const struct dt_index_operations osd_index_iam_ops;
121 static const struct dt_index_operations osd_index_ea_ops;
123 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
124 const struct lu_fid *fid);
125 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
126 struct osd_device *osd);
128 int osd_trans_declare_op2rb[] = {
129 [OSD_OT_ATTR_SET] = OSD_OT_ATTR_SET,
130 [OSD_OT_PUNCH] = OSD_OT_MAX,
131 [OSD_OT_XATTR_SET] = OSD_OT_XATTR_SET,
132 [OSD_OT_CREATE] = OSD_OT_DESTROY,
133 [OSD_OT_DESTROY] = OSD_OT_CREATE,
134 [OSD_OT_REF_ADD] = OSD_OT_REF_DEL,
135 [OSD_OT_REF_DEL] = OSD_OT_REF_ADD,
136 [OSD_OT_WRITE] = OSD_OT_WRITE,
137 [OSD_OT_INSERT] = OSD_OT_DELETE,
138 [OSD_OT_DELETE] = OSD_OT_INSERT,
139 [OSD_OT_QUOTA] = OSD_OT_MAX,
142 static int osd_has_index(const struct osd_object *obj)
144 return obj->oo_dt.do_index_ops != NULL;
147 static int osd_object_invariant(const struct lu_object *l)
149 return osd_invariant(osd_obj(l));
153 * Concurrency: doesn't matter
155 static int osd_is_write_locked(const struct lu_env *env, struct osd_object *o)
157 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;
189 for (i = 0; i < oti->oti_ins_cache_used; i++) {
190 if (!lu_fid_eq(&idc[i].oic_fid, fid))
192 if (idc[i].oic_dev != osd)
201 static struct osd_idmap_cache *
202 osd_idc_add(const struct lu_env *env, struct osd_device *osd,
203 const struct lu_fid *fid)
205 struct osd_thread_info *oti = osd_oti_get(env);
206 struct osd_idmap_cache *idc;
209 if (unlikely(oti->oti_ins_cache_used >= oti->oti_ins_cache_size)) {
210 i = oti->oti_ins_cache_size * 2;
212 i = OSD_INS_CACHE_SIZE;
213 OBD_ALLOC(idc, sizeof(*idc) * i);
215 return ERR_PTR(-ENOMEM);
216 if (oti->oti_ins_cache != NULL) {
217 memcpy(idc, oti->oti_ins_cache,
218 oti->oti_ins_cache_used * sizeof(*idc));
219 OBD_FREE(oti->oti_ins_cache,
220 oti->oti_ins_cache_used * sizeof(*idc));
222 oti->oti_ins_cache = idc;
223 oti->oti_ins_cache_size = i;
226 idc = oti->oti_ins_cache + oti->oti_ins_cache_used++;
229 idc->oic_lid.oii_ino = 0;
230 idc->oic_lid.oii_gen = 0;
237 * lookup mapping for the given fid in the cache, initialize a
238 * new one if not found. the initialization checks whether the
239 * object is local or remote. for local objects, OI is used to
240 * learn ino/generation. the function is used when the caller
241 * has no information about the object, e.g. at dt_insert().
243 static struct osd_idmap_cache *
244 osd_idc_find_or_init(const struct lu_env *env, struct osd_device *osd,
245 const struct lu_fid *fid)
247 struct osd_idmap_cache *idc;
250 idc = osd_idc_find(env, osd, fid);
251 LASSERT(!IS_ERR(idc));
255 /* new mapping is needed */
256 idc = osd_idc_add(env, osd, fid);
261 rc = osd_remote_fid(env, osd, fid);
262 if (unlikely(rc < 0))
266 /* the object is local, lookup in OI */
267 /* XXX: probably cheaper to lookup in LU first? */
268 rc = osd_oi_lookup(osd_oti_get(env), osd, fid,
270 if (unlikely(rc < 0)) {
271 CERROR("can't lookup: rc = %d\n", rc);
275 /* the object is remote */
283 * lookup mapping for given FID and fill it from the given object.
284 * the object is lolcal by definition.
286 static int osd_idc_find_and_init(const struct lu_env *env,
287 struct osd_device *osd,
288 struct osd_object *obj)
290 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
291 struct osd_idmap_cache *idc;
293 idc = osd_idc_find(env, osd, fid);
294 LASSERT(!IS_ERR(idc));
296 if (obj->oo_inode == NULL)
298 if (idc->oic_lid.oii_ino != obj->oo_inode->i_ino) {
299 LASSERT(idc->oic_lid.oii_ino == 0);
300 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
301 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
306 /* new mapping is needed */
307 idc = osd_idc_add(env, osd, fid);
311 if (obj->oo_inode != NULL) {
312 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
313 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
319 * OSD object methods.
323 * Concurrency: no concurrent access is possible that early in object
326 static struct lu_object *osd_object_alloc(const struct lu_env *env,
327 const struct lu_object_header *hdr,
330 struct osd_object *mo;
336 l = &mo->oo_dt.do_lu;
337 dt_object_init(&mo->oo_dt, NULL, d);
338 mo->oo_dt.do_ops = &osd_obj_ops;
339 l->lo_ops = &osd_lu_obj_ops;
340 init_rwsem(&mo->oo_sem);
341 init_rwsem(&mo->oo_ext_idx_sem);
342 spin_lock_init(&mo->oo_guard);
343 INIT_LIST_HEAD(&mo->oo_xattr_list);
350 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
351 struct dentry *dentry, struct lustre_ost_attrs *loa)
355 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
356 (void *)loa, sizeof(*loa));
358 struct lustre_mdt_attrs *lma = &loa->loa_lma;
360 if (rc < sizeof(*lma))
364 lustre_loa_swab(loa, true);
365 /* Check LMA compatibility */
366 if (lma->lma_incompat & ~LMA_INCOMPAT_SUPP) {
367 CWARN("%.16s: unsupported incompat LMA feature(s) %#x "
368 "for fid = "DFID", ino = %lu\n",
369 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
370 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
371 PFID(&lma->lma_self_fid), inode->i_ino);
374 } else if (rc == 0) {
382 * retrieve object from backend ext fs.
384 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
385 struct osd_inode_id *id)
388 struct inode *inode = NULL;
390 /* if we look for an inode withing a running
391 * transaction, then we risk to deadlock */
392 /* osd_dirent_check_repair() breaks this */
393 /*LASSERT(current->journal_info == NULL);*/
395 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
397 CDEBUG(D_INODE, "no inode: ino = %u, rc = %ld\n",
398 id->oii_ino, PTR_ERR(inode));
399 } else if (id->oii_gen != OSD_OII_NOGEN &&
400 inode->i_generation != id->oii_gen) {
401 CDEBUG(D_INODE, "unmatched inode: ino = %u, oii_gen = %u, "
402 "i_generation = %u\n",
403 id->oii_ino, id->oii_gen, inode->i_generation);
405 inode = ERR_PTR(-ESTALE);
406 } else if (inode->i_nlink == 0) {
407 /* due to parallel readdir and unlink,
408 * we can have dead inode here. */
409 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
411 inode = ERR_PTR(-ESTALE);
412 } else if (is_bad_inode(inode)) {
413 CWARN("%.16s: bad inode: ino = %u\n",
414 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name, id->oii_ino);
416 inode = ERR_PTR(-ENOENT);
417 } else if ((rc = osd_attach_jinode(inode))) {
421 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
422 if (id->oii_gen == OSD_OII_NOGEN)
423 osd_id_gen(id, inode->i_ino, inode->i_generation);
425 /* Do not update file c/mtime in ldiskfs.
426 * NB: we don't have any lock to protect this because we don't
427 * have reference on osd_object now, but contention with
428 * another lookup + attr_set can't happen in the tiny window
429 * between if (...) and set S_NOCMTIME. */
430 if (!(inode->i_flags & S_NOCMTIME))
431 inode->i_flags |= S_NOCMTIME;
436 int osd_ldiskfs_add_entry(struct osd_thread_info *info, struct osd_device *osd,
437 handle_t *handle, struct dentry *child,
438 struct inode *inode, struct htree_lock *hlock)
442 rc = __ldiskfs_add_entry(handle, child, inode, hlock);
443 if (rc == -ENOBUFS || rc == -ENOSPC) {
444 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
445 struct inode *parent = child->d_parent->d_inode;
446 struct lu_fid *fid = NULL;
448 rc2 = osd_get_lma(info, parent, child->d_parent, loa);
450 fid = &loa->loa_lma.lma_self_fid;
451 } else if (rc2 == -ENODATA) {
452 if (unlikely(parent == inode->i_sb->s_root->d_inode)) {
453 fid = &info->oti_fid3;
454 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
455 } else if (!osd->od_is_ost && osd->od_index == 0) {
456 fid = &info->oti_fid3;
457 lu_igif_build(fid, parent->i_ino,
458 parent->i_generation);
463 CWARN("%s: directory (inode: %lu, FID: "DFID") %s "
464 "maximum entry limit\n",
465 osd_name(osd), parent->i_ino, PFID(fid),
466 rc == -ENOSPC ? "has reached" : "is approaching");
468 CWARN("%s: directory (inode: %lu, FID: unknown) %s "
469 "maximum entry limit\n",
470 osd_name(osd), parent->i_ino,
471 rc == -ENOSPC ? "has reached" : "is approaching");
473 /* ignore such error now */
482 static struct inode *
483 osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
484 struct osd_inode_id *id, struct lu_fid *fid)
486 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
490 inode = osd_iget(info, dev, id);
494 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
496 *fid = loa->loa_lma.lma_self_fid;
497 } else if (rc == -ENODATA) {
498 if (unlikely(inode == osd_sb(dev)->s_root->d_inode))
499 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
501 lu_igif_build(fid, inode->i_ino, inode->i_generation);
509 static struct inode *osd_iget_check(struct osd_thread_info *info,
510 struct osd_device *dev,
511 const struct lu_fid *fid,
512 struct osd_inode_id *id,
519 /* The cached OI mapping is trustable. If we cannot locate the inode
520 * via the cached OI mapping, then return the failure to the caller
521 * directly without further OI checking. */
524 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
527 if (!trusted && (rc == -ENOENT || rc == -ESTALE))
530 CDEBUG(D_INODE, "no inode for FID: "DFID", ino = %u, rc = %d\n",
531 PFID(fid), id->oii_ino, rc);
535 if (is_bad_inode(inode)) {
540 CDEBUG(D_INODE, "bad inode for FID: "DFID", ino = %u\n",
541 PFID(fid), id->oii_ino);
545 if (id->oii_gen != OSD_OII_NOGEN &&
546 inode->i_generation != id->oii_gen) {
551 CDEBUG(D_INODE, "unmatched inode for FID: "DFID", ino = %u, "
552 "oii_gen = %u, i_generation = %u\n", PFID(fid),
553 id->oii_ino, id->oii_gen, inode->i_generation);
557 if (inode->i_nlink == 0) {
562 CDEBUG(D_INODE, "stale inode for FID: "DFID", ino = %u\n",
563 PFID(fid), id->oii_ino);
567 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
571 __u32 saved_ino = id->oii_ino;
572 __u32 saved_gen = id->oii_gen;
575 LASSERTF(rc == -ESTALE || rc == -ENOENT, "rc = %d\n", rc);
577 rc = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
578 /* XXX: There are four possible cases:
580 * Backup/restore caused the OI invalid.
582 * Someone unlinked the object but NOT removed
583 * the OI mapping, such as mount target device
584 * as ldiskfs, and modify something directly.
586 * Someone just removed the object between the
587 * former oi_lookup and the iget. It is normal.
588 * 4. Other failure cases.
590 * Generally, when the device is mounted, it will
591 * auto check whether the system is restored from
592 * file-level backup or not. We trust such detect
593 * to distinguish the 1st case from the 2nd case:
594 * if the OI files are consistent but may contain
595 * stale OI mappings because of case 2, if iget()
596 * returns -ENOENT or -ESTALE, then it should be
599 /* If the OI mapping was in OI file before the
600 * osd_iget_check(), but now, it is disappear,
601 * then it must be removed by race. That is a
602 * normal race case. */
605 /* It is the OI scrub updated the OI mapping by race.
606 * The new OI mapping must be valid. */
607 if (saved_ino != id->oii_ino || saved_gen != id->oii_gen) {
613 if (dev->od_scrub.os_file.sf_flags & SF_INCONSISTENT)
614 /* It still can be the case 2, but we cannot
615 * distinguish it from the case 1. So return
616 * -EREMCHG to block current operation until
617 * OI scrub rebuilt the OI mappings. */
625 if (inode->i_generation == id->oii_gen)
630 if (id->oii_gen == OSD_OII_NOGEN)
631 osd_id_gen(id, inode->i_ino, inode->i_generation);
633 /* Do not update file c/mtime in ldiskfs.
634 * NB: we don't have any lock to protect this because we don't
635 * have reference on osd_object now, but contention with
636 * another lookup + attr_set can't happen in the tiny window
637 * between if (...) and set S_NOCMTIME. */
638 if (!(inode->i_flags & S_NOCMTIME))
639 inode->i_flags |= S_NOCMTIME;
656 * \retval +v: new filter_fid, does not contain self-fid
657 * \retval 0: filter_fid_old, contains self-fid
658 * \retval -v: other failure cases
660 int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
661 struct dentry *dentry, struct lu_fid *fid)
663 struct filter_fid_old *ff = &info->oti_ff;
664 struct ost_id *ostid = &info->oti_ostid;
667 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
668 if (rc == sizeof(*ff)) {
670 ostid_set_seq(ostid, le64_to_cpu(ff->ff_seq));
671 rc = ostid_set_id(ostid, le64_to_cpu(ff->ff_objid));
673 * XXX: use 0 as the index for compatibility, the caller will
674 * handle index related issues when necessary.
677 ostid_to_fid(fid, ostid, 0);
678 } else if (rc == sizeof(struct filter_fid)) {
680 } else if (rc >= 0) {
687 static int osd_lma_self_repair(struct osd_thread_info *info,
688 struct osd_device *osd, struct inode *inode,
689 const struct lu_fid *fid, __u32 compat)
694 LASSERT(current->journal_info == NULL);
696 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC,
697 osd_dto_credits_noquota[DTO_XATTR_SET]);
700 CWARN("%s: cannot start journal for lma_self_repair: rc = %d\n",
705 rc = osd_ea_fid_set(info, inode, fid, compat, 0);
707 CWARN("%s: cannot self repair the LMA: rc = %d\n",
709 ldiskfs_journal_stop(jh);
713 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
715 struct osd_thread_info *info = osd_oti_get(env);
716 struct osd_device *osd = osd_obj2dev(obj);
717 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
718 struct lustre_mdt_attrs *lma = &loa->loa_lma;
719 struct inode *inode = obj->oo_inode;
720 struct dentry *dentry = &info->oti_obj_dentry;
721 struct lu_fid *fid = NULL;
722 const struct lu_fid *rfid = lu_object_fid(&obj->oo_dt.do_lu);
726 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
727 (void *)loa, sizeof(*loa));
728 if (rc == -ENODATA && !fid_is_igif(rfid) && osd->od_check_ff) {
729 fid = &lma->lma_self_fid;
730 rc = osd_get_idif(info, inode, dentry, fid);
731 if ((rc > 0) || (rc == -ENODATA && osd->od_index_in_idif)) {
732 /* For the given OST-object, if it has neither LMA nor
733 * FID in XATTR_NAME_FID, then the given FID (which is
734 * contained in the @obj, from client RPC for locating
735 * the OST-object) is trusted. We use it to generate
737 osd_lma_self_repair(info, osd, inode, rfid,
748 lustre_lma_swab(lma);
749 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
750 (CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT) &&
751 S_ISREG(inode->i_mode)))) {
752 CWARN("%s: unsupported incompat LMA feature(s) %#x for "
753 "fid = "DFID", ino = %lu\n", osd_name(osd),
754 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
755 PFID(rfid), inode->i_ino);
758 fid = &lma->lma_self_fid;
762 if (fid != NULL && unlikely(!lu_fid_eq(rfid, fid))) {
763 if (fid_is_idif(rfid) && fid_is_idif(fid)) {
764 struct ost_id *oi = &info->oti_ostid;
765 struct lu_fid *fid1 = &info->oti_fid3;
766 __u32 idx = fid_idif_ost_idx(rfid);
768 /* For old IDIF, the OST index is not part of the IDIF,
769 * Means that different OSTs may have the same IDIFs.
770 * Under such case, we need to make some compatible
771 * check to make sure to trigger OI scrub properly. */
772 if (idx != 0 && fid_idif_ost_idx(fid) == 0) {
773 /* Given @rfid is new, LMA is old. */
774 fid_to_ostid(fid, oi);
775 ostid_to_fid(fid1, oi, idx);
776 if (lu_fid_eq(fid1, rfid)) {
777 if (osd->od_index_in_idif)
778 osd_lma_self_repair(info, osd,
792 struct osd_check_lmv_buf {
793 #ifdef HAVE_DIR_CONTEXT
794 /* please keep it as first member */
795 struct dir_context ctx;
797 struct osd_thread_info *oclb_info;
798 struct osd_device *oclb_dev;
799 struct osd_idmap_cache *oclb_oic;
803 * It is called internally by ->readdir() to filter out the
804 * local slave object's FID of the striped directory.
806 * \retval 1 found the local slave's FID
807 * \retval 0 continue to check next item
808 * \retval -ve for failure
810 #ifdef HAVE_FILLDIR_USE_CTX
811 static int osd_stripe_dir_filldir(struct dir_context *buf,
813 static int osd_stripe_dir_filldir(void *buf,
815 const char *name, int namelen,
816 loff_t offset, __u64 ino, unsigned d_type)
818 struct osd_check_lmv_buf *oclb = (struct osd_check_lmv_buf *)buf;
819 struct osd_thread_info *oti = oclb->oclb_info;
820 struct lu_fid *fid = &oti->oti_fid3;
821 struct osd_inode_id *id = &oti->oti_id3;
822 struct osd_device *dev = oclb->oclb_dev;
823 struct osd_idmap_cache *oic = oclb->oclb_oic;
831 sscanf(name + 1, SFID, RFID(fid));
832 if (!fid_is_sane(fid))
835 if (osd_remote_fid(oti->oti_env, dev, fid))
838 osd_id_gen(id, ino, OSD_OII_NOGEN);
839 inode = osd_iget(oti, dev, id);
841 return PTR_ERR(inode);
844 osd_add_oi_cache(oti, dev, id, fid);
848 rc = osd_oii_insert(dev, oic, true);
850 return rc == 0 ? 1 : rc;
853 /* When lookup item under striped directory, we need to locate the master
854 * MDT-object of the striped directory firstly, then the client will send
855 * lookup (getattr_by_name) RPC to the MDT with some slave MDT-object's FID
856 * and the item's name. If the system is restored from MDT file level backup,
857 * then before the OI scrub completely built the OI files, the OI mappings of
858 * the master MDT-object and slave MDT-object may be invalid. Usually, it is
859 * not a problem for the master MDT-object. Because when locate the master
860 * MDT-object, we will do name based lookup (for the striped directory itself)
861 * firstly, during such process we can setup the correct OI mapping for the
862 * master MDT-object. But it will be trouble for the slave MDT-object. Because
863 * the client will not trigger name based lookup on the MDT to locate the slave
864 * MDT-object before locating item under the striped directory, then when
865 * osd_fid_lookup(), it will find that the OI mapping for the slave MDT-object
866 * is invalid and does not know what the right OI mapping is, then the MDT has
867 * to return -EINPROGRESS to the client to notify that the OI scrub is rebuiding
868 * the OI file, related OI mapping is unknown yet, please try again later. And
869 * then client will re-try the RPC again and again until related OI mapping has
870 * been updated. That is quite inefficient.
872 * To resolve above trouble, we will handle it as the following two cases:
874 * 1) The slave MDT-object and the master MDT-object are on different MDTs.
875 * It is relative easy. Be as one of remote MDT-objects, the slave MDT-object
876 * is linked under /REMOTE_PARENT_DIR with the name of its FID string.
877 * We can locate the slave MDT-object via lookup the /REMOTE_PARENT_DIR
878 * directly. Please check osd_fid_lookup().
880 * 2) The slave MDT-object and the master MDT-object reside on the same MDT.
881 * Under such case, during lookup the master MDT-object, we will lookup the
882 * slave MDT-object via readdir against the master MDT-object, because the
883 * slave MDT-objects information are stored as sub-directories with the name
884 * "${FID}:${index}". Then when find the local slave MDT-object, its OI
885 * mapping will be recorded. Then subsequent osd_fid_lookup() will know
886 * the correct OI mapping for the slave MDT-object. */
887 static int osd_check_lmv(struct osd_thread_info *oti, struct osd_device *dev,
888 struct inode *inode, struct osd_idmap_cache *oic)
890 struct lu_buf *buf = &oti->oti_big_buf;
891 struct dentry *dentry = &oti->oti_obj_dentry;
892 struct file *filp = &oti->oti_file;
893 const struct file_operations *fops;
894 struct lmv_mds_md_v1 *lmv1;
895 struct osd_check_lmv_buf oclb = {
896 #ifdef HAVE_DIR_CONTEXT
897 .ctx.actor = osd_stripe_dir_filldir,
907 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, buf->lb_buf,
910 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, NULL, 0);
912 lu_buf_realloc(buf, rc);
913 if (buf->lb_buf == NULL)
914 GOTO(out, rc = -ENOMEM);
920 if (unlikely(rc == 0 || rc == -ENODATA))
926 if (unlikely(buf->lb_buf == NULL)) {
927 lu_buf_realloc(buf, rc);
928 if (buf->lb_buf == NULL)
929 GOTO(out, rc = -ENOMEM);
935 if (le32_to_cpu(lmv1->lmv_magic) != LMV_MAGIC_V1)
939 dentry->d_inode = inode;
940 dentry->d_sb = inode->i_sb;
942 filp->f_path.dentry = dentry;
943 filp->f_mode = FMODE_64BITHASH;
944 filp->f_mapping = inode->i_mapping;
946 filp->private_data = NULL;
947 set_file_inode(filp, inode);
949 #ifdef HAVE_DIR_CONTEXT
950 oclb.ctx.pos = filp->f_pos;
951 rc = fops->iterate(filp, &oclb.ctx);
952 filp->f_pos = oclb.ctx.pos;
954 rc = fops->readdir(filp, &oclb, osd_stripe_dir_filldir);
956 fops->release(inode, filp);
960 CDEBUG(D_LFSCK, "%.16s: fail to check LMV EA, inode = %lu/%u,"
962 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
963 inode->i_ino, inode->i_generation,
964 PFID(&oic->oic_fid), rc);
971 static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
972 const struct lu_fid *fid,
973 const struct lu_object_conf *conf)
975 struct osd_thread_info *info;
976 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
977 struct osd_device *dev;
978 struct osd_idmap_cache *oic;
979 struct osd_inode_id *id;
980 struct inode *inode = NULL;
981 struct osd_scrub *scrub;
982 struct scrub_file *sf;
983 __u32 flags = SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT | SS_AUTO_FULL;
990 bool updated = false;
993 LINVRNT(osd_invariant(obj));
994 LASSERT(obj->oo_inode == NULL);
995 LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID"\n", PFID(fid));
998 scrub = &dev->od_scrub;
999 sf = &scrub->os_file;
1000 info = osd_oti_get(env);
1002 oic = &info->oti_cache;
1004 if (OBD_FAIL_CHECK(OBD_FAIL_SRV_ENOENT))
1007 /* For the object is created as locking anchor, or for the object to
1008 * be created on disk. No need to osd_oi_lookup() at here because FID
1009 * shouldn't never be re-used, if it's really a duplicate FID from
1010 * unexpected reason, we should be able to detect it later by calling
1011 * do_create->osd_oi_insert(). */
1012 if (conf != NULL && conf->loc_flags & LOC_F_NEW)
1013 GOTO(out, result = 0);
1015 /* Search order: 1. per-thread cache. */
1016 if (lu_fid_eq(fid, &oic->oic_fid) &&
1017 likely(oic->oic_dev == dev)) {
1023 if (!list_empty(&scrub->os_inconsistent_items)) {
1024 /* Search order: 2. OI scrub pending list. */
1025 result = osd_oii_lookup(dev, fid, id);
1030 /* The OI mapping in the OI file can be updated by the OI scrub
1031 * when we locate the inode via FID. So it may be not trustable. */
1034 /* Search order: 3. OI files. */
1035 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1036 if (result == -ENOENT) {
1037 if (!(fid_is_norm(fid) || fid_is_igif(fid)) ||
1038 fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) ||
1039 !ldiskfs_test_bit(osd_oi_fid2idx(dev,fid),
1041 GOTO(out, result = 0);
1050 inode = osd_iget_check(info, dev, fid, id, trusted);
1051 if (IS_ERR(inode)) {
1052 result = PTR_ERR(inode);
1053 if (result == -ENOENT || result == -ESTALE)
1054 GOTO(out, result = 0);
1056 if (result == -EREMCHG) {
1059 /* We still have chance to get the valid inode: for the
1060 * object which is referenced by remote name entry, the
1061 * object on the local MDT will be linked under the dir
1062 * of "/REMOTE_PARENT_DIR" with its FID string as name.
1064 * We do not know whether the object for the given FID
1065 * is referenced by some remote name entry or not, and
1066 * especially for DNE II, a multiple-linked object may
1067 * have many name entries reside on many MDTs.
1069 * To simplify the operation, OSD will not distinguish
1070 * more, just lookup "/REMOTE_PARENT_DIR". Usually, it
1071 * only happened for the RPC from other MDT during the
1072 * OI scrub, or for the client side RPC with FID only,
1073 * such as FID to path, or from old connected client. */
1075 !fid_is_on_ost(info, dev, fid, OI_CHECK_FLD)) {
1076 rc1 = osd_lookup_in_remote_parent(info, dev,
1081 flags |= SS_AUTO_PARTIAL;
1082 flags &= ~SS_AUTO_FULL;
1087 if (thread_is_running(&scrub->os_thread)) {
1088 if (scrub->os_partial_scan &&
1089 !scrub->os_in_join) {
1092 if (inode != NULL && !IS_ERR(inode)) {
1095 osd_add_oi_cache(info, dev, id,
1097 osd_oii_insert(dev, oic, true);
1099 result = -EINPROGRESS;
1102 } else if (!dev->od_noscrub) {
1105 rc1 = osd_scrub_start(dev, flags);
1106 LCONSOLE_WARN("%.16s: trigger OI scrub by RPC "
1107 "for the "DFID" with flags 0x%x,"
1108 " rc = %d\n", osd_name(dev),
1109 PFID(fid), flags, rc1);
1110 if (rc1 == 0 || rc1 == -EALREADY) {
1111 if (inode != NULL && !IS_ERR(inode)) {
1114 osd_add_oi_cache(info, dev, id,
1116 osd_oii_insert(dev, oic, true);
1118 result = -EINPROGRESS;
1128 if (inode == NULL || IS_ERR(inode))
1130 } else if (remote) {
1134 obj->oo_inode = inode;
1135 LASSERT(obj->oo_inode->i_sb == osd_sb(dev));
1137 result = osd_check_lma(env, obj);
1141 LASSERTF(id->oii_ino == inode->i_ino &&
1142 id->oii_gen == inode->i_generation,
1143 "locate wrong inode for FID: "DFID", %u/%u => %ld/%u\n",
1144 PFID(fid), id->oii_ino, id->oii_gen,
1145 inode->i_ino, inode->i_generation);
1147 saved_ino = inode->i_ino;
1148 saved_gen = inode->i_generation;
1150 if (unlikely(result == -ENODATA)) {
1151 /* If the OI scrub updated the OI mapping by race, it
1152 * must be valid. Trust the inode that has no LMA EA. */
1156 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1158 /* The OI mapping is still there, the inode is still
1159 * valid. It is just becaues the inode has no LMA EA. */
1160 if (saved_ino == id->oii_ino &&
1161 saved_gen == id->oii_gen)
1164 /* It is the OI scrub updated the OI mapping by race.
1165 * The new OI mapping must be valid. */
1168 obj->oo_inode = NULL;
1174 /* "result == -ENOENT" means that the OI mappinghas been
1175 * removed by race, so the inode belongs to other object.
1177 * Others error can be returned directly. */
1178 if (result == -ENOENT) {
1187 obj->oo_inode = NULL;
1189 if (result != -EREMCHG)
1194 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1195 /* "result == -ENOENT" means the cached OI mapping has been removed
1196 * from the OI file by race, above inode belongs to other object. */
1197 if (result == -ENOENT) {
1200 GOTO(out, result = 0);
1206 if (saved_ino == id->oii_ino && saved_gen == id->oii_gen)
1209 /* It is the OI scrub updated the OI mapping by race.
1210 * The new OI mapping must be valid. */
1216 obj->oo_compat_dot_created = 1;
1217 obj->oo_compat_dotdot_created = 1;
1219 if (S_ISDIR(inode->i_mode) &&
1220 (flags & SS_AUTO_PARTIAL || sf->sf_status == SS_SCANNING))
1221 osd_check_lmv(info, dev, inode, oic);
1223 result = osd_attach_jinode(inode);
1225 obj->oo_inode = NULL;
1231 GOTO(out, result = 0);
1233 LASSERT(obj->oo_hl_head == NULL);
1234 obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
1235 if (obj->oo_hl_head == NULL) {
1236 obj->oo_inode = NULL;
1238 GOTO(out, result = -ENOMEM);
1240 GOTO(out, result = 0);
1243 if (result != 0 && trusted)
1244 fid_zero(&oic->oic_fid);
1246 LINVRNT(osd_invariant(obj));
1251 * Concurrency: shouldn't matter.
1253 static void osd_object_init0(struct osd_object *obj)
1255 LASSERT(obj->oo_inode != NULL);
1256 obj->oo_dt.do_body_ops = &osd_body_ops;
1257 obj->oo_dt.do_lu.lo_header->loh_attr |=
1258 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
1262 * Concurrency: no concurrent access is possible that early in object
1265 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
1266 const struct lu_object_conf *conf)
1268 struct osd_object *obj = osd_obj(l);
1271 LINVRNT(osd_invariant(obj));
1273 if (fid_is_otable_it(&l->lo_header->loh_fid)) {
1274 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
1275 l->lo_header->loh_attr |= LOHA_EXISTS;
1279 result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
1280 obj->oo_dt.do_body_ops = &osd_body_ops_new;
1281 if (result == 0 && obj->oo_inode != NULL) {
1282 struct osd_thread_info *oti = osd_oti_get(env);
1283 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
1285 osd_object_init0(obj);
1286 result = osd_get_lma(oti, obj->oo_inode,
1287 &oti->oti_obj_dentry, loa);
1289 /* Convert LMAI flags to lustre LMA flags
1290 * and cache it to oo_lma_flags */
1292 lma_to_lustre_flags(loa->loa_lma.lma_incompat);
1293 } else if (result == -ENODATA) {
1298 LINVRNT(osd_invariant(obj));
1302 /* The first part of oxe_buf is xattr name, and is '\0' terminated.
1303 * The left part is for value, binary mode. */
1304 struct osd_xattr_entry {
1305 struct list_head oxe_list;
1309 struct rcu_head oxe_rcu;
1313 static int osd_oxc_get(struct osd_object *obj, const char *name,
1316 struct osd_xattr_entry *tmp;
1317 struct osd_xattr_entry *oxe = NULL;
1318 size_t namelen = strlen(name);
1323 list_for_each_entry_rcu(tmp, &obj->oo_xattr_list, oxe_list) {
1324 if (namelen == tmp->oxe_namelen &&
1325 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1332 GOTO(out, rc = -ENOENT);
1334 if (!oxe->oxe_exist)
1335 GOTO(out, rc = -ENODATA);
1338 rc = oxe->oxe_len - sizeof(*oxe) - oxe->oxe_namelen - 1;
1341 if (buf->lb_buf == NULL)
1344 if (buf->lb_len < rc)
1345 GOTO(out, rc = -ERANGE);
1347 memcpy(buf->lb_buf, &oxe->oxe_buf[namelen + 1], rc);
1355 static void osd_oxc_free(struct rcu_head *head)
1357 struct osd_xattr_entry *oxe;
1359 oxe = container_of(head, struct osd_xattr_entry, oxe_rcu);
1360 OBD_FREE(oxe, oxe->oxe_len);
1363 static void osd_oxc_add(struct osd_object *obj, const char *name,
1364 const char *buf, int buflen)
1366 struct osd_xattr_entry *oxe;
1367 struct osd_xattr_entry *old = NULL;
1368 struct osd_xattr_entry *tmp;
1369 size_t namelen = strlen(name);
1370 size_t len = sizeof(*oxe) + namelen + 1 + buflen;
1372 OBD_ALLOC(oxe, len);
1376 INIT_LIST_HEAD(&oxe->oxe_list);
1378 oxe->oxe_namelen = namelen;
1379 memcpy(oxe->oxe_buf, name, namelen);
1381 LASSERT(buf != NULL);
1382 memcpy(oxe->oxe_buf + namelen + 1, buf, buflen);
1383 oxe->oxe_exist = true;
1385 oxe->oxe_exist = false;
1388 /* this should be rarely called, just remove old and add new */
1389 spin_lock(&obj->oo_guard);
1390 list_for_each_entry(tmp, &obj->oo_xattr_list, oxe_list) {
1391 if (namelen == tmp->oxe_namelen &&
1392 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1398 list_replace_rcu(&old->oxe_list, &oxe->oxe_list);
1399 call_rcu(&old->oxe_rcu, osd_oxc_free);
1401 list_add_tail_rcu(&oxe->oxe_list, &obj->oo_xattr_list);
1403 spin_unlock(&obj->oo_guard);
1406 static void osd_oxc_del(struct osd_object *obj, const char *name)
1408 struct osd_xattr_entry *oxe;
1409 size_t namelen = strlen(name);
1411 spin_lock(&obj->oo_guard);
1412 list_for_each_entry(oxe, &obj->oo_xattr_list, oxe_list) {
1413 if (namelen == oxe->oxe_namelen &&
1414 strncmp(name, oxe->oxe_buf, namelen) == 0) {
1415 list_del_rcu(&oxe->oxe_list);
1416 call_rcu(&oxe->oxe_rcu, osd_oxc_free);
1420 spin_unlock(&obj->oo_guard);
1423 static void osd_oxc_fini(struct osd_object *obj)
1425 struct osd_xattr_entry *oxe, *next;
1427 list_for_each_entry_safe(oxe, next, &obj->oo_xattr_list, oxe_list) {
1428 list_del(&oxe->oxe_list);
1429 OBD_FREE(oxe, oxe->oxe_len);
1434 * Concurrency: no concurrent access is possible that late in object
1437 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
1439 struct osd_object *obj = osd_obj(l);
1441 LINVRNT(osd_invariant(obj));
1444 dt_object_fini(&obj->oo_dt);
1445 if (obj->oo_hl_head != NULL)
1446 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
1451 * Concurrency: no concurrent access is possible that late in object
1454 static void osd_index_fini(struct osd_object *o)
1456 struct iam_container *bag;
1458 if (o->oo_dir != NULL) {
1459 bag = &o->oo_dir->od_container;
1460 if (o->oo_inode != NULL) {
1461 if (bag->ic_object == o->oo_inode)
1462 iam_container_fini(bag);
1464 OBD_FREE_PTR(o->oo_dir);
1470 * Concurrency: no concurrent access is possible that late in object
1471 * life-cycle (for all existing callers, that is. New callers have to provide
1472 * their own locking.)
1474 static int osd_inode_unlinked(const struct inode *inode)
1476 return inode->i_nlink == 0;
1480 OSD_TXN_OI_DELETE_CREDITS = 20,
1481 OSD_TXN_INODE_DELETE_CREDITS = 20
1488 #if OSD_THANDLE_STATS
1490 * Set time when the handle is allocated
1492 static void osd_th_alloced(struct osd_thandle *oth)
1494 oth->oth_alloced = ktime_get();
1498 * Set time when the handle started
1500 static void osd_th_started(struct osd_thandle *oth)
1502 oth->oth_started = ktime_get();
1506 * Check whether the we deal with this handle for too long.
1508 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
1509 ktime_t alloced, ktime_t started,
1512 ktime_t now = ktime_get();
1514 LASSERT(dev != NULL);
1516 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
1517 ktime_us_delta(started, alloced));
1518 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
1519 ktime_us_delta(closed, started));
1520 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
1521 ktime_us_delta(now, closed));
1523 if (ktime_before(ktime_add_ns(alloced, 30 * NSEC_PER_SEC), now)) {
1524 CWARN("transaction handle %p was open for too long: now %lld, alloced %lld, started %lld, closed %lld\n",
1525 oth, now, alloced, started, closed);
1526 libcfs_debug_dumpstack(NULL);
1530 #define OSD_CHECK_SLOW_TH(oth, dev, expr) \
1532 ktime_t __closed = ktime_get(); \
1533 ktime_t __alloced = oth->oth_alloced; \
1534 ktime_t __started = oth->oth_started; \
1537 __osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
1540 #else /* OSD_THANDLE_STATS */
1542 #define osd_th_alloced(h) do {} while(0)
1543 #define osd_th_started(h) do {} while(0)
1544 #define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
1546 #endif /* OSD_THANDLE_STATS */
1549 * Concurrency: doesn't access mutable data.
1551 static int osd_param_is_not_sane(const struct osd_device *dev,
1552 const struct thandle *th)
1554 struct osd_thandle *oh = container_of(th, typeof(*oh), ot_super);
1556 return oh->ot_credits > osd_transaction_size(dev);
1560 * Concurrency: shouldn't matter.
1562 static void osd_trans_commit_cb(struct super_block *sb,
1563 struct ldiskfs_journal_cb_entry *jcb, int error)
1565 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
1566 struct thandle *th = &oh->ot_super;
1567 struct lu_device *lud = &th->th_dev->dd_lu_dev;
1568 struct dt_txn_commit_cb *dcb, *tmp;
1570 LASSERT(oh->ot_handle == NULL);
1573 CERROR("transaction @0x%p commit error: %d\n", th, error);
1575 dt_txn_hook_commit(th);
1577 /* call per-transaction callbacks if any */
1578 list_for_each_entry_safe(dcb, tmp, &oh->ot_commit_dcb_list,
1580 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1581 "commit callback entry: magic=%x name='%s'\n",
1582 dcb->dcb_magic, dcb->dcb_name);
1583 list_del_init(&dcb->dcb_linkage);
1584 dcb->dcb_func(NULL, th, dcb, error);
1587 lu_ref_del_at(&lud->ld_reference, &oh->ot_dev_link, "osd-tx", th);
1591 lu_context_exit(&th->th_ctx);
1592 lu_context_fini(&th->th_ctx);
1596 #ifndef HAVE_SB_START_WRITE
1597 # define sb_start_write(sb) do {} while (0)
1598 # define sb_end_write(sb) do {} while (0)
1601 static struct thandle *osd_trans_create(const struct lu_env *env,
1602 struct dt_device *d)
1604 struct osd_thread_info *oti = osd_oti_get(env);
1605 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1606 struct osd_thandle *oh;
1611 CERROR("%s: someone try to start transaction under "
1612 "readonly mode, should be disabled.\n",
1613 osd_name(osd_dt_dev(d)));
1615 RETURN(ERR_PTR(-EROFS));
1618 /* on pending IO in this thread should left from prev. request */
1619 LASSERT(atomic_read(&iobuf->dr_numreqs) == 0);
1621 sb_start_write(osd_sb(osd_dt_dev(d)));
1623 OBD_ALLOC_GFP(oh, sizeof *oh, GFP_NOFS);
1625 oh->ot_quota_trans = &oti->oti_quota_trans;
1626 memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
1630 th->th_tags = LCT_TX_HANDLE;
1632 INIT_LIST_HEAD(&oh->ot_commit_dcb_list);
1633 INIT_LIST_HEAD(&oh->ot_stop_dcb_list);
1636 memset(oti->oti_declare_ops, 0,
1637 sizeof(oti->oti_declare_ops));
1638 memset(oti->oti_declare_ops_cred, 0,
1639 sizeof(oti->oti_declare_ops_cred));
1640 memset(oti->oti_declare_ops_used, 0,
1641 sizeof(oti->oti_declare_ops_used));
1643 sb_end_write(osd_sb(osd_dt_dev(d)));
1644 th = ERR_PTR(-ENOMEM);
1649 void osd_trans_dump_creds(const struct lu_env *env, struct thandle *th)
1651 struct osd_thread_info *oti = osd_oti_get(env);
1652 struct osd_thandle *oh;
1654 oh = container_of0(th, struct osd_thandle, ot_super);
1655 LASSERT(oh != NULL);
1657 CWARN(" create: %u/%u/%u, destroy: %u/%u/%u\n",
1658 oti->oti_declare_ops[OSD_OT_CREATE],
1659 oti->oti_declare_ops_cred[OSD_OT_CREATE],
1660 oti->oti_declare_ops_used[OSD_OT_CREATE],
1661 oti->oti_declare_ops[OSD_OT_DESTROY],
1662 oti->oti_declare_ops_cred[OSD_OT_DESTROY],
1663 oti->oti_declare_ops_used[OSD_OT_DESTROY]);
1664 CWARN(" attr_set: %u/%u/%u, xattr_set: %u/%u/%u\n",
1665 oti->oti_declare_ops[OSD_OT_ATTR_SET],
1666 oti->oti_declare_ops_cred[OSD_OT_ATTR_SET],
1667 oti->oti_declare_ops_used[OSD_OT_ATTR_SET],
1668 oti->oti_declare_ops[OSD_OT_XATTR_SET],
1669 oti->oti_declare_ops_cred[OSD_OT_XATTR_SET],
1670 oti->oti_declare_ops_used[OSD_OT_XATTR_SET]);
1671 CWARN(" write: %u/%u/%u, punch: %u/%u/%u, quota %u/%u/%u\n",
1672 oti->oti_declare_ops[OSD_OT_WRITE],
1673 oti->oti_declare_ops_cred[OSD_OT_WRITE],
1674 oti->oti_declare_ops_used[OSD_OT_WRITE],
1675 oti->oti_declare_ops[OSD_OT_PUNCH],
1676 oti->oti_declare_ops_cred[OSD_OT_PUNCH],
1677 oti->oti_declare_ops_used[OSD_OT_PUNCH],
1678 oti->oti_declare_ops[OSD_OT_QUOTA],
1679 oti->oti_declare_ops_cred[OSD_OT_QUOTA],
1680 oti->oti_declare_ops_used[OSD_OT_QUOTA]);
1681 CWARN(" insert: %u/%u/%u, delete: %u/%u/%u\n",
1682 oti->oti_declare_ops[OSD_OT_INSERT],
1683 oti->oti_declare_ops_cred[OSD_OT_INSERT],
1684 oti->oti_declare_ops_used[OSD_OT_INSERT],
1685 oti->oti_declare_ops[OSD_OT_DELETE],
1686 oti->oti_declare_ops_cred[OSD_OT_DELETE],
1687 oti->oti_declare_ops_used[OSD_OT_DELETE]);
1688 CWARN(" ref_add: %u/%u/%u, ref_del: %u/%u/%u\n",
1689 oti->oti_declare_ops[OSD_OT_REF_ADD],
1690 oti->oti_declare_ops_cred[OSD_OT_REF_ADD],
1691 oti->oti_declare_ops_used[OSD_OT_REF_ADD],
1692 oti->oti_declare_ops[OSD_OT_REF_DEL],
1693 oti->oti_declare_ops_cred[OSD_OT_REF_DEL],
1694 oti->oti_declare_ops_used[OSD_OT_REF_DEL]);
1698 * Concurrency: shouldn't matter.
1700 static int osd_trans_start(const struct lu_env *env, struct dt_device *d,
1703 struct osd_thread_info *oti = osd_oti_get(env);
1704 struct osd_device *dev = osd_dt_dev(d);
1706 struct osd_thandle *oh;
1711 LASSERT(current->journal_info == NULL);
1713 oh = container_of0(th, struct osd_thandle, ot_super);
1714 LASSERT(oh != NULL);
1715 LASSERT(oh->ot_handle == NULL);
1717 rc = dt_txn_hook_start(env, d, th);
1721 if (unlikely(osd_param_is_not_sane(dev, th))) {
1722 static unsigned long last_printed;
1723 static int last_credits;
1725 /* don't make noise on a tiny testing systems
1726 * actual credits misuse will be caught anyway */
1727 if (last_credits != oh->ot_credits &&
1728 time_after(jiffies, last_printed +
1729 msecs_to_jiffies(60 * MSEC_PER_SEC)) &&
1730 osd_transaction_size(dev) > 512) {
1731 CWARN("%s: credits %u > trans_max %u\n", osd_name(dev),
1732 oh->ot_credits, osd_transaction_size(dev));
1733 osd_trans_dump_creds(env, th);
1734 libcfs_debug_dumpstack(NULL);
1735 last_credits = oh->ot_credits;
1736 last_printed = jiffies;
1738 /* XXX Limit the credits to 'max_transaction_buffers', and
1739 * let the underlying filesystem to catch the error if
1740 * we really need so many credits.
1742 * This should be removed when we can calculate the
1743 * credits precisely. */
1744 oh->ot_credits = osd_transaction_size(dev);
1745 } else if (ldiskfs_track_declares_assert != 0) {
1746 /* reserve few credits to prevent an assertion in JBD
1747 * our debugging mechanism will be able to detected
1748 * overuse. this can help to debug single-update
1750 oh->ot_credits += 10;
1751 if (unlikely(osd_param_is_not_sane(dev, th)))
1752 oh->ot_credits = osd_transaction_size(dev);
1756 * XXX temporary stuff. Some abstraction layer should
1759 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, oh->ot_credits);
1763 LASSERT(oti->oti_txns == 0);
1764 lu_context_init(&th->th_ctx, th->th_tags);
1765 lu_context_enter(&th->th_ctx);
1767 lu_device_get(&d->dd_lu_dev);
1768 lu_ref_add_at(&d->dd_lu_dev.ld_reference, &oh->ot_dev_link,
1779 static int osd_seq_exists(const struct lu_env *env,
1780 struct osd_device *osd, u64 seq)
1782 struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
1783 struct seq_server_site *ss = osd_seq_site(osd);
1787 LASSERT(ss != NULL);
1788 LASSERT(ss->ss_server_fld != NULL);
1790 rc = osd_fld_lookup(env, osd, seq, range);
1793 CERROR("%s: can't lookup FLD sequence %#llx: rc = %d\n",
1794 osd_name(osd), seq, rc);
1798 RETURN(ss->ss_node_id == range->lsr_index);
1801 static void osd_trans_stop_cb(struct osd_thandle *oth, int result)
1803 struct dt_txn_commit_cb *dcb;
1804 struct dt_txn_commit_cb *tmp;
1806 /* call per-transaction stop callbacks if any */
1807 list_for_each_entry_safe(dcb, tmp, &oth->ot_stop_dcb_list,
1809 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1810 "commit callback entry: magic=%x name='%s'\n",
1811 dcb->dcb_magic, dcb->dcb_name);
1812 list_del_init(&dcb->dcb_linkage);
1813 dcb->dcb_func(NULL, &oth->ot_super, dcb, result);
1818 * Concurrency: shouldn't matter.
1820 static int osd_trans_stop(const struct lu_env *env, struct dt_device *dt,
1823 int rc = 0, remove_agents = 0;
1824 struct osd_thandle *oh;
1825 struct osd_thread_info *oti = osd_oti_get(env);
1826 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1827 struct osd_device *osd = osd_dt_dev(th->th_dev);
1828 struct qsd_instance *qsd = osd->od_quota_slave;
1829 struct lquota_trans *qtrans;
1832 oh = container_of0(th, struct osd_thandle, ot_super);
1834 /* reset OI cache for safety */
1835 oti->oti_ins_cache_used = 0;
1837 remove_agents = oh->ot_remove_agents;
1839 qtrans = oh->ot_quota_trans;
1840 oh->ot_quota_trans = NULL;
1842 if (oh->ot_handle != NULL) {
1844 handle_t *hdl = oh->ot_handle;
1847 * add commit callback
1848 * notice we don't do this in osd_trans_start()
1849 * as underlying transaction can change during truncate
1851 ldiskfs_journal_callback_add(hdl, osd_trans_commit_cb,
1854 LASSERT(oti->oti_txns == 1);
1857 rc = dt_txn_hook_stop(env, th);
1859 CERROR("%s: failed in transaction hook: rc = %d\n",
1862 osd_trans_stop_cb(oh, rc);
1863 /* hook functions might modify th_sync */
1864 hdl->h_sync = th->th_sync;
1866 oh->ot_handle = NULL;
1867 OSD_CHECK_SLOW_TH(oh, osd, rc2 = ldiskfs_journal_stop(hdl));
1869 CERROR("%s: failed to stop transaction: rc = %d\n",
1870 osd_name(osd), rc2);
1874 osd_trans_stop_cb(oh, th->th_result);
1878 /* inform the quota slave device that the transaction is stopping */
1879 qsd_op_end(env, qsd, qtrans);
1881 /* as we want IO to journal and data IO be concurrent, we don't block
1882 * awaiting data IO completion in osd_do_bio(), instead we wait here
1883 * once transaction is submitted to the journal. all reqular requests
1884 * don't do direct IO (except read/write), thus this wait_event becomes
1887 * IMPORTANT: we have to wait till any IO submited by the thread is
1888 * completed otherwise iobuf may be corrupted by different request
1890 wait_event(iobuf->dr_wait,
1891 atomic_read(&iobuf->dr_numreqs) == 0);
1892 osd_fini_iobuf(osd, iobuf);
1894 rc = iobuf->dr_error;
1896 if (unlikely(remove_agents != 0))
1897 osd_process_scheduled_agent_removals(env, osd);
1899 sb_end_write(osd_sb(osd));
1904 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
1906 struct osd_thandle *oh = container_of0(th, struct osd_thandle,
1909 LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
1910 LASSERT(&dcb->dcb_func != NULL);
1911 if (dcb->dcb_flags & DCB_TRANS_STOP)
1912 list_add(&dcb->dcb_linkage, &oh->ot_stop_dcb_list);
1914 list_add(&dcb->dcb_linkage, &oh->ot_commit_dcb_list);
1920 * Called just before object is freed. Releases all resources except for
1921 * object itself (that is released by osd_object_free()).
1923 * Concurrency: no concurrent access is possible that late in object
1926 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
1928 struct osd_object *obj = osd_obj(l);
1929 struct inode *inode = obj->oo_inode;
1931 LINVRNT(osd_invariant(obj));
1934 * If object is unlinked remove fid->ino mapping from object index.
1937 osd_index_fini(obj);
1938 if (inode != NULL) {
1939 struct qsd_instance *qsd = osd_obj2dev(obj)->od_quota_slave;
1940 qid_t uid = i_uid_read(inode);
1941 qid_t gid = i_gid_read(inode);
1944 obj->oo_inode = NULL;
1947 struct osd_thread_info *info = osd_oti_get(env);
1948 struct lquota_id_info *qi = &info->oti_qi;
1950 /* Release granted quota to master if necessary */
1951 qi->lqi_id.qid_uid = uid;
1952 qsd_op_adjust(env, qsd, &qi->lqi_id, USRQUOTA);
1954 qi->lqi_id.qid_uid = gid;
1955 qsd_op_adjust(env, qsd, &qi->lqi_id, GRPQUOTA);
1957 qi->lqi_id.qid_uid = i_projid_read(inode);
1958 qsd_op_adjust(env, qsd, &qi->lqi_id, PRJQUOTA);
1964 * Concurrency: ->loo_object_release() is called under site spin-lock.
1966 static void osd_object_release(const struct lu_env *env,
1967 struct lu_object *l)
1969 struct osd_object *o = osd_obj(l);
1970 /* nobody should be releasing a non-destroyed object with nlink=0
1971 * the API allows this, but ldiskfs doesn't like and then report
1972 * this inode as deleted */
1973 if (unlikely(!o->oo_destroyed && o->oo_inode && o->oo_inode->i_nlink == 0))
1978 * Concurrency: shouldn't matter.
1980 static int osd_object_print(const struct lu_env *env, void *cookie,
1981 lu_printer_t p, const struct lu_object *l)
1983 struct osd_object *o = osd_obj(l);
1984 struct iam_descr *d;
1986 if (o->oo_dir != NULL)
1987 d = o->oo_dir->od_container.ic_descr;
1990 return (*p)(env, cookie,
1991 LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
1993 o->oo_inode ? o->oo_inode->i_ino : 0UL,
1994 o->oo_inode ? o->oo_inode->i_generation : 0,
1995 d ? d->id_ops->id_name : "plain");
1999 * Concurrency: shouldn't matter.
2001 int osd_statfs(const struct lu_env *env, struct dt_device *d,
2002 struct obd_statfs *sfs)
2004 struct osd_device *osd = osd_dt_dev(d);
2005 struct super_block *sb = osd_sb(osd);
2006 struct kstatfs *ksfs;
2010 if (unlikely(osd->od_mnt == NULL))
2011 return -EINPROGRESS;
2013 /* osd_lproc.c call this without env, allocate ksfs for that case */
2014 if (unlikely(env == NULL)) {
2015 OBD_ALLOC_PTR(ksfs);
2019 ksfs = &osd_oti_get(env)->oti_ksfs;
2022 result = sb->s_op->statfs(sb->s_root, ksfs);
2026 statfs_pack(sfs, ksfs);
2027 if (unlikely(sb->s_flags & MS_RDONLY))
2028 sfs->os_state |= OS_STATE_READONLY;
2029 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb,
2030 LDISKFS_FEATURE_INCOMPAT_EXTENTS))
2031 sfs->os_maxbytes = sb->s_maxbytes;
2033 sfs->os_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2036 * Reserve some space so to avoid fragmenting the filesystem too much.
2037 * Fragmentation not only impacts performance, but can also increase
2038 * metadata overhead significantly, causing grant calculation to be
2041 * Reserve 0.78% of total space, at least 8MB for small filesystems.
2043 CLASSERT(OSD_STATFS_RESERVED > LDISKFS_MAX_BLOCK_SIZE);
2044 reserved = OSD_STATFS_RESERVED >> sb->s_blocksize_bits;
2045 if (likely(sfs->os_blocks >= reserved << OSD_STATFS_RESERVED_SHIFT))
2046 reserved = sfs->os_blocks >> OSD_STATFS_RESERVED_SHIFT;
2048 sfs->os_blocks -= reserved;
2049 sfs->os_bfree -= min(reserved, sfs->os_bfree);
2050 sfs->os_bavail -= min(reserved, sfs->os_bavail);
2053 if (unlikely(env == NULL))
2059 * Estimate space needed for file creations. We assume the largest filename
2060 * which is 2^64 - 1, hence a filename of 20 chars.
2061 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
2063 #ifdef __LDISKFS_DIR_REC_LEN
2064 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
2066 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
2070 * Concurrency: doesn't access mutable data.
2072 static void osd_conf_get(const struct lu_env *env,
2073 const struct dt_device *dev,
2074 struct dt_device_param *param)
2076 struct super_block *sb = osd_sb(osd_dt_dev(dev));
2080 * XXX should be taken from not-yet-existing fs abstraction layer.
2082 param->ddp_max_name_len = LDISKFS_NAME_LEN;
2083 param->ddp_max_nlink = LDISKFS_LINK_MAX;
2084 param->ddp_symlink_max = sb->s_blocksize;
2085 param->ddp_mount_type = LDD_MT_LDISKFS;
2086 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EXTENTS))
2087 param->ddp_maxbytes = sb->s_maxbytes;
2089 param->ddp_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2090 /* inode are statically allocated, so per-inode space consumption
2091 * is the space consumed by the directory entry */
2092 param->ddp_inodespace = PER_OBJ_USAGE;
2093 /* EXT_INIT_MAX_LEN is the theoretical maximum extent size (32k blocks
2094 * = 128MB) which is unlikely to be hit in real life. Report a smaller
2095 * maximum length to not under count the actual number of extents
2096 * needed for writing a file. */
2097 param->ddp_max_extent_blks = EXT_INIT_MAX_LEN >> 2;
2098 /* worst-case extent insertion metadata overhead */
2099 param->ddp_extent_tax = 6 * LDISKFS_BLOCK_SIZE(sb);
2100 param->ddp_mntopts = 0;
2101 if (test_opt(sb, XATTR_USER))
2102 param->ddp_mntopts |= MNTOPT_USERXATTR;
2103 if (test_opt(sb, POSIX_ACL))
2104 param->ddp_mntopts |= MNTOPT_ACL;
2106 /* LOD might calculate the max stripe count based on max_ea_size,
2107 * so we need take account in the overhead as well,
2108 * xattr_header + magic + xattr_entry_head */
2109 ea_overhead = sizeof(struct ldiskfs_xattr_header) + sizeof(__u32) +
2110 LDISKFS_XATTR_LEN(XATTR_NAME_MAX_LEN);
2112 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
2113 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EA_INODE))
2114 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE -
2118 param->ddp_max_ea_size = sb->s_blocksize - ea_overhead;
2122 * Concurrency: shouldn't matter.
2124 static int osd_sync(const struct lu_env *env, struct dt_device *d)
2128 CDEBUG(D_CACHE, "%s: syncing OSD\n", osd_dt_dev(d)->od_svname);
2130 rc = ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
2132 CDEBUG(D_CACHE, "%s: synced OSD: rc = %d\n", osd_dt_dev(d)->od_svname,
2139 * Start commit for OSD device.
2141 * An implementation of dt_commit_async method for OSD device.
2142 * Asychronously starts underlayng fs sync and thereby a transaction
2145 * \param env environment
2146 * \param d dt device
2148 * \see dt_device_operations
2150 static int osd_commit_async(const struct lu_env *env,
2151 struct dt_device *d)
2153 struct super_block *s = osd_sb(osd_dt_dev(d));
2156 CDEBUG(D_HA, "%s: async commit OSD\n", osd_dt_dev(d)->od_svname);
2157 RETURN(s->s_op->sync_fs(s, 0));
2161 * Concurrency: shouldn't matter.
2164 static int osd_ro(const struct lu_env *env, struct dt_device *d)
2166 struct super_block *sb = osd_sb(osd_dt_dev(d));
2167 struct block_device *dev = sb->s_bdev;
2168 #ifdef HAVE_DEV_SET_RDONLY
2169 struct block_device *jdev = LDISKFS_SB(sb)->journal_bdev;
2172 int rc = -EOPNOTSUPP;
2176 #ifdef HAVE_DEV_SET_RDONLY
2177 CERROR("*** setting %s read-only ***\n", osd_dt_dev(d)->od_svname);
2179 if (sb->s_op->freeze_fs) {
2180 rc = sb->s_op->freeze_fs(sb);
2185 if (jdev && (jdev != dev)) {
2186 CDEBUG(D_IOCTL | D_HA, "set journal dev %lx rdonly\n",
2188 dev_set_rdonly(jdev);
2190 CDEBUG(D_IOCTL | D_HA, "set dev %lx rdonly\n", (long)dev);
2191 dev_set_rdonly(dev);
2193 if (sb->s_op->unfreeze_fs)
2194 sb->s_op->unfreeze_fs(sb);
2199 CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
2200 osd_dt_dev(d)->od_svname, (long)dev, rc);
2206 * Note: we do not count into QUOTA here.
2207 * If we mount with --data_journal we may need more.
2209 const int osd_dto_credits_noquota[DTO_NR] = {
2212 * INDEX_EXTRA_TRANS_BLOCKS(8) +
2213 * SINGLEDATA_TRANS_BLOCKS(8)
2214 * XXX Note: maybe iam need more, since iam have more level than
2217 [DTO_INDEX_INSERT] = 16,
2220 * just modify a single entry, probably merge few within a block
2222 [DTO_INDEX_DELETE] = 1,
2226 [DTO_INDEX_UPDATE] = 16,
2228 * 4(inode, inode bits, groups, GDT)
2229 * notice: OI updates are counted separately with DTO_INDEX_INSERT
2231 [DTO_OBJECT_CREATE] = 4,
2233 * 4(inode, inode bits, groups, GDT)
2234 * notice: OI updates are counted separately with DTO_INDEX_DELETE
2236 [DTO_OBJECT_DELETE] = 4,
2238 * Attr set credits (inode)
2240 [DTO_ATTR_SET_BASE] = 1,
2242 * Xattr set. The same as xattr of EXT3.
2243 * DATA_TRANS_BLOCKS(14)
2244 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
2245 * are also counted in. Do not know why?
2247 [DTO_XATTR_SET] = 14,
2249 * credits for inode change during write.
2251 [DTO_WRITE_BASE] = 3,
2253 * credits for single block write.
2255 [DTO_WRITE_BLOCK] = 14,
2257 * Attr set credits for chown.
2258 * This is extra credits for setattr, and it is null without quota
2260 [DTO_ATTR_SET_CHOWN] = 0
2263 static const struct dt_device_operations osd_dt_ops = {
2264 .dt_root_get = osd_root_get,
2265 .dt_statfs = osd_statfs,
2266 .dt_trans_create = osd_trans_create,
2267 .dt_trans_start = osd_trans_start,
2268 .dt_trans_stop = osd_trans_stop,
2269 .dt_trans_cb_add = osd_trans_cb_add,
2270 .dt_conf_get = osd_conf_get,
2271 .dt_sync = osd_sync,
2273 .dt_commit_async = osd_commit_async,
2276 static void osd_read_lock(const struct lu_env *env, struct dt_object *dt,
2279 struct osd_object *obj = osd_dt_obj(dt);
2280 struct osd_thread_info *oti = osd_oti_get(env);
2282 LINVRNT(osd_invariant(obj));
2284 LASSERT(obj->oo_owner != env);
2285 down_read_nested(&obj->oo_sem, role);
2287 LASSERT(obj->oo_owner == NULL);
2291 static void osd_write_lock(const struct lu_env *env, struct dt_object *dt,
2294 struct osd_object *obj = osd_dt_obj(dt);
2295 struct osd_thread_info *oti = osd_oti_get(env);
2297 LINVRNT(osd_invariant(obj));
2299 LASSERT(obj->oo_owner != env);
2300 down_write_nested(&obj->oo_sem, role);
2302 LASSERT(obj->oo_owner == NULL);
2303 obj->oo_owner = env;
2307 static void osd_read_unlock(const struct lu_env *env, struct dt_object *dt)
2309 struct osd_object *obj = osd_dt_obj(dt);
2310 struct osd_thread_info *oti = osd_oti_get(env);
2312 LINVRNT(osd_invariant(obj));
2314 LASSERT(oti->oti_r_locks > 0);
2316 up_read(&obj->oo_sem);
2319 static void osd_write_unlock(const struct lu_env *env, struct dt_object *dt)
2321 struct osd_object *obj = osd_dt_obj(dt);
2322 struct osd_thread_info *oti = osd_oti_get(env);
2324 LINVRNT(osd_invariant(obj));
2326 LASSERT(obj->oo_owner == env);
2327 LASSERT(oti->oti_w_locks > 0);
2329 obj->oo_owner = NULL;
2330 up_write(&obj->oo_sem);
2333 static int osd_write_locked(const struct lu_env *env, struct dt_object *dt)
2335 struct osd_object *obj = osd_dt_obj(dt);
2337 LINVRNT(osd_invariant(obj));
2339 return obj->oo_owner == env;
2342 static struct timespec *osd_inode_time(const struct lu_env *env,
2343 struct inode *inode, __u64 seconds)
2345 struct osd_thread_info *oti = osd_oti_get(env);
2346 struct timespec *t = &oti->oti_time;
2348 t->tv_sec = seconds;
2350 *t = timespec_trunc(*t, inode->i_sb->s_time_gran);
2354 static void osd_inode_getattr(const struct lu_env *env,
2355 struct inode *inode, struct lu_attr *attr)
2357 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
2358 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
2359 LA_PROJID | LA_FLAGS | LA_NLINK | LA_RDEV |
2360 LA_BLKSIZE | LA_TYPE;
2362 attr->la_atime = LTIME_S(inode->i_atime);
2363 attr->la_mtime = LTIME_S(inode->i_mtime);
2364 attr->la_ctime = LTIME_S(inode->i_ctime);
2365 attr->la_mode = inode->i_mode;
2366 attr->la_size = i_size_read(inode);
2367 attr->la_blocks = inode->i_blocks;
2368 attr->la_uid = i_uid_read(inode);
2369 attr->la_gid = i_gid_read(inode);
2370 attr->la_projid = i_projid_read(inode);
2371 attr->la_flags = ll_inode_to_ext_flags(inode->i_flags);
2372 attr->la_nlink = inode->i_nlink;
2373 attr->la_rdev = inode->i_rdev;
2374 attr->la_blksize = 1 << inode->i_blkbits;
2375 attr->la_blkbits = inode->i_blkbits;
2377 * Ext4 did not transfer inherit flags from raw inode
2378 * to inode flags, and ext4 internally test raw inode
2379 * @i_flags directly. Instead of patching ext4, we do it here.
2381 if (LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL)
2382 attr->la_flags |= LUSTRE_PROJINHERIT_FL;
2385 static int osd_attr_get(const struct lu_env *env,
2386 struct dt_object *dt,
2387 struct lu_attr *attr)
2389 struct osd_object *obj = osd_dt_obj(dt);
2391 if (unlikely(!dt_object_exists(dt)))
2393 if (unlikely(obj->oo_destroyed))
2396 LASSERT(!dt_object_remote(dt));
2397 LINVRNT(osd_invariant(obj));
2399 spin_lock(&obj->oo_guard);
2400 osd_inode_getattr(env, obj->oo_inode, attr);
2401 if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL)
2402 attr->la_flags |= LUSTRE_ORPHAN_FL;
2403 spin_unlock(&obj->oo_guard);
2408 static int osd_declare_attr_qid(const struct lu_env *env,
2409 struct osd_object *obj,
2410 struct osd_thandle *oh, long long bspace,
2411 qid_t old_id, qid_t new_id, bool enforce,
2415 struct osd_thread_info *info = osd_oti_get(env);
2416 struct lquota_id_info *qi = &info->oti_qi;
2418 qi->lqi_type = type;
2419 /* inode accounting */
2420 qi->lqi_is_blk = false;
2422 /* one more inode for the new id ... */
2423 qi->lqi_id.qid_uid = new_id;
2425 /* Reserve credits for the new id */
2426 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
2427 if (rc == -EDQUOT || rc == -EINPROGRESS)
2432 /* and one less inode for the current id */
2433 qi->lqi_id.qid_uid = old_id;
2435 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2436 if (rc == -EDQUOT || rc == -EINPROGRESS)
2441 /* block accounting */
2442 qi->lqi_is_blk = true;
2444 /* more blocks for the new id ... */
2445 qi->lqi_id.qid_uid = new_id;
2446 qi->lqi_space = bspace;
2448 * Credits for the new uid has been reserved, re-use "obj"
2449 * to save credit reservation.
2451 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2452 if (rc == -EDQUOT || rc == -EINPROGRESS)
2457 /* and finally less blocks for the current uid */
2458 qi->lqi_id.qid_uid = old_id;
2459 qi->lqi_space = -bspace;
2460 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2461 if (rc == -EDQUOT || rc == -EINPROGRESS)
2467 static int osd_declare_attr_set(const struct lu_env *env,
2468 struct dt_object *dt,
2469 const struct lu_attr *attr,
2470 struct thandle *handle)
2472 struct osd_thandle *oh;
2473 struct osd_object *obj;
2481 LASSERT(dt != NULL);
2482 LASSERT(handle != NULL);
2484 obj = osd_dt_obj(dt);
2485 LASSERT(osd_invariant(obj));
2487 oh = container_of0(handle, struct osd_thandle, ot_super);
2488 LASSERT(oh->ot_handle == NULL);
2490 osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
2491 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2493 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
2494 osd_dto_credits_noquota[DTO_XATTR_SET]);
2496 if (attr == NULL || obj->oo_inode == NULL)
2499 bspace = obj->oo_inode->i_blocks;
2500 bspace <<= obj->oo_inode->i_sb->s_blocksize_bits;
2501 bspace = toqb(bspace);
2503 /* Changing ownership is always preformed by super user, it should not
2506 * We still need to call the osd_declare_qid() to calculate the journal
2507 * credits for updating quota accounting files and to trigger quota
2508 * space adjustment once the operation is completed.*/
2509 if (attr->la_valid & LA_UID || attr->la_valid & LA_GID) {
2511 uid = i_uid_read(obj->oo_inode);
2512 enforce = (attr->la_valid & LA_UID) && (attr->la_uid != uid);
2513 rc = osd_declare_attr_qid(env, obj, oh, bspace, uid,
2514 attr->la_uid, enforce, USRQUOTA);
2518 gid = i_gid_read(obj->oo_inode);
2519 enforce = (attr->la_valid & LA_GID) && (attr->la_gid != gid);
2520 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2521 i_gid_read(obj->oo_inode),
2522 attr->la_gid, enforce, GRPQUOTA);
2527 #ifdef HAVE_PROJECT_QUOTA
2528 if (attr->la_valid & LA_PROJID) {
2529 __u32 projid = i_projid_read(obj->oo_inode);
2530 enforce = (attr->la_valid & LA_PROJID) &&
2531 (attr->la_projid != projid);
2532 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2533 (qid_t)projid, (qid_t)attr->la_projid,
2542 static int osd_inode_setattr(const struct lu_env *env,
2543 struct inode *inode, const struct lu_attr *attr)
2545 __u64 bits = attr->la_valid;
2547 /* Only allow set size for regular file */
2548 if (!S_ISREG(inode->i_mode))
2549 bits &= ~(LA_SIZE | LA_BLOCKS);
2554 if (bits & LA_ATIME)
2555 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
2556 if (bits & LA_CTIME)
2557 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
2558 if (bits & LA_MTIME)
2559 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
2560 if (bits & LA_SIZE) {
2561 spin_lock(&inode->i_lock);
2562 LDISKFS_I(inode)->i_disksize = attr->la_size;
2563 i_size_write(inode, attr->la_size);
2564 spin_unlock(&inode->i_lock);
2567 /* OSD should not change "i_blocks" which is used by quota.
2568 * "i_blocks" should be changed by ldiskfs only. */
2570 inode->i_mode = (inode->i_mode & S_IFMT) |
2571 (attr->la_mode & ~S_IFMT);
2573 i_uid_write(inode, attr->la_uid);
2575 i_gid_write(inode, attr->la_gid);
2576 if (bits & LA_PROJID)
2577 i_projid_write(inode, attr->la_projid);
2578 if (bits & LA_NLINK)
2579 set_nlink(inode, attr->la_nlink);
2581 inode->i_rdev = attr->la_rdev;
2583 if (bits & LA_FLAGS) {
2584 /* always keep S_NOCMTIME */
2585 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
2588 * Ext4 did not transfer inherit flags from
2589 * @inode->i_flags to raw inode i_flags when writing
2590 * flags, we do it explictly here.
2592 if (attr->la_flags & LUSTRE_PROJINHERIT_FL)
2593 LDISKFS_I(inode)->i_flags |= LUSTRE_PROJINHERIT_FL;
2598 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
2602 if ((attr->la_valid & LA_UID && attr->la_uid != i_uid_read(inode)) ||
2603 (attr->la_valid & LA_GID && attr->la_gid != i_gid_read(inode))) {
2606 ll_vfs_dq_init(inode);
2608 if (attr->la_valid & LA_UID)
2609 iattr.ia_valid |= ATTR_UID;
2610 if (attr->la_valid & LA_GID)
2611 iattr.ia_valid |= ATTR_GID;
2612 iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
2613 iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
2615 rc = ll_vfs_dq_transfer(inode, &iattr);
2617 CERROR("%s: quota transfer failed: rc = %d. Is quota "
2618 "enforcement enabled on the ldiskfs "
2619 "filesystem?\n", inode->i_sb->s_id, rc);
2624 #ifdef HAVE_PROJECT_QUOTA
2625 /* Handle project id transfer here properly */
2626 if (attr->la_valid & LA_PROJID &&
2627 attr->la_projid != i_projid_read(inode)) {
2628 rc = __ldiskfs_ioctl_setproject(inode, attr->la_projid);
2630 CERROR("%s: quota transfer failed: rc = %d. Is quota "
2631 "enforcement enabled on the ldiskfs "
2632 "filesystem?\n", inode->i_sb->s_id, rc);
2640 static int osd_attr_set(const struct lu_env *env,
2641 struct dt_object *dt,
2642 const struct lu_attr *attr,
2643 struct thandle *handle)
2645 struct osd_object *obj = osd_dt_obj(dt);
2646 struct inode *inode;
2649 if (!dt_object_exists(dt))
2652 LASSERT(handle != NULL);
2653 LASSERT(!dt_object_remote(dt));
2654 LASSERT(osd_invariant(obj));
2656 osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
2658 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING)) {
2659 struct osd_thread_info *oti = osd_oti_get(env);
2660 const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
2661 struct lu_fid *fid1 = &oti->oti_fid;
2662 struct osd_inode_id *id = &oti->oti_id;
2663 struct iam_path_descr *ipd;
2664 struct iam_container *bag;
2665 struct osd_thandle *oh;
2668 fid_cpu_to_be(fid1, fid0);
2669 memset(id, 1, sizeof(*id));
2670 bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
2671 fid0)->oi_dir.od_container;
2672 ipd = osd_idx_ipd_get(env, bag);
2673 if (unlikely(ipd == NULL))
2676 oh = container_of0(handle, struct osd_thandle, ot_super);
2677 rc = iam_update(oh->ot_handle, bag, (const struct iam_key *)fid1,
2678 (const struct iam_rec *)id, ipd);
2679 osd_ipd_put(env, bag, ipd);
2680 return(rc > 0 ? 0 : rc);
2683 inode = obj->oo_inode;
2685 rc = osd_quota_transfer(inode, attr);
2689 spin_lock(&obj->oo_guard);
2690 rc = osd_inode_setattr(env, inode, attr);
2691 spin_unlock(&obj->oo_guard);
2695 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2697 if (!(attr->la_valid & LA_FLAGS))
2700 /* Let's check if there are extra flags need to be set into LMA */
2701 if (attr->la_flags & LUSTRE_LMA_FL_MASKS) {
2702 struct osd_thread_info *info = osd_oti_get(env);
2703 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
2705 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
2706 &info->oti_ost_attrs);
2710 lma->lma_incompat |=
2711 lustre_to_lma_flags(attr->la_flags);
2712 lustre_lma_swab(lma);
2713 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA,
2714 lma, sizeof(*lma), XATTR_REPLACE);
2716 struct osd_device *osd = osd_obj2dev(obj);
2718 CWARN("%s: set "DFID" lma flags %u failed: rc = %d\n",
2719 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)),
2720 lma->lma_incompat, rc);
2723 attr->la_flags & LUSTRE_LMA_FL_MASKS;
2725 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
2728 osd_trans_exec_check(env, handle, OSD_OT_ATTR_SET);
2733 static struct dentry *osd_child_dentry_get(const struct lu_env *env,
2734 struct osd_object *obj,
2735 const char *name, const int namelen)
2737 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
2740 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
2741 umode_t mode, struct dt_allocation_hint *hint,
2745 struct osd_device *osd = osd_obj2dev(obj);
2746 struct osd_thandle *oth;
2747 struct dt_object *parent = NULL;
2748 struct inode *inode;
2750 LINVRNT(osd_invariant(obj));
2751 LASSERT(obj->oo_inode == NULL);
2752 LASSERT(obj->oo_hl_head == NULL);
2754 if (S_ISDIR(mode) && ldiskfs_pdo) {
2755 obj->oo_hl_head =ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
2756 if (obj->oo_hl_head == NULL)
2760 oth = container_of(th, struct osd_thandle, ot_super);
2761 LASSERT(oth->ot_handle->h_transaction != NULL);
2763 if (hint != NULL && hint->dah_parent != NULL &&
2764 !dt_object_remote(hint->dah_parent))
2765 parent = hint->dah_parent;
2767 inode = ldiskfs_create_inode(oth->ot_handle,
2768 parent ? osd_dt_obj(parent)->oo_inode :
2769 osd_sb(osd)->s_root->d_inode,
2771 if (!IS_ERR(inode)) {
2772 /* Do not update file c/mtime in ldiskfs. */
2773 inode->i_flags |= S_NOCMTIME;
2775 /* For new created object, it must be consistent,
2776 * and it is unnecessary to scrub against it. */
2777 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
2779 obj->oo_inode = inode;
2782 if (obj->oo_hl_head != NULL) {
2783 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
2784 obj->oo_hl_head = NULL;
2786 result = PTR_ERR(inode);
2788 LINVRNT(osd_invariant(obj));
2796 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
2797 struct lu_attr *attr,
2798 struct dt_allocation_hint *hint,
2799 struct dt_object_format *dof,
2803 struct osd_thandle *oth;
2804 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX | S_ISGID));
2806 LASSERT(S_ISDIR(attr->la_mode));
2808 oth = container_of(th, struct osd_thandle, ot_super);
2809 LASSERT(oth->ot_handle->h_transaction != NULL);
2810 result = osd_mkfile(info, obj, mode, hint, th);
2815 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
2816 struct lu_attr *attr,
2817 struct dt_allocation_hint *hint,
2818 struct dt_object_format *dof,
2822 struct osd_thandle *oth;
2823 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
2825 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
2827 LASSERT(S_ISREG(attr->la_mode));
2829 oth = container_of(th, struct osd_thandle, ot_super);
2830 LASSERT(oth->ot_handle->h_transaction != NULL);
2832 result = osd_mkfile(info, obj, mode, hint, th);
2834 LASSERT(obj->oo_inode != NULL);
2835 if (feat->dif_flags & DT_IND_VARKEY)
2836 result = iam_lvar_create(obj->oo_inode,
2837 feat->dif_keysize_max,
2839 feat->dif_recsize_max,
2842 result = iam_lfix_create(obj->oo_inode,
2843 feat->dif_keysize_max,
2845 feat->dif_recsize_max,
2852 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
2853 struct lu_attr *attr,
2854 struct dt_allocation_hint *hint,
2855 struct dt_object_format *dof,
2858 LASSERT(S_ISREG(attr->la_mode));
2859 return osd_mkfile(info, obj, (attr->la_mode &
2860 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
2863 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
2864 struct lu_attr *attr,
2865 struct dt_allocation_hint *hint,
2866 struct dt_object_format *dof,
2869 LASSERT(S_ISLNK(attr->la_mode));
2870 return osd_mkfile(info, obj, (attr->la_mode &
2871 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
2874 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
2875 struct lu_attr *attr,
2876 struct dt_allocation_hint *hint,
2877 struct dt_object_format *dof,
2880 umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
2883 LINVRNT(osd_invariant(obj));
2884 LASSERT(obj->oo_inode == NULL);
2885 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
2886 S_ISFIFO(mode) || S_ISSOCK(mode));
2888 result = osd_mkfile(info, obj, mode, hint, th);
2890 LASSERT(obj->oo_inode != NULL);
2892 * This inode should be marked dirty for i_rdev. Currently
2893 * that is done in the osd_attr_init().
2895 init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
2898 LINVRNT(osd_invariant(obj));
2902 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
2904 struct dt_allocation_hint *hint,
2905 struct dt_object_format *dof,
2908 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
2910 osd_obj_type_f result;
2926 result = osd_mk_index;
2937 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
2938 struct dt_object *parent, struct dt_object *child,
2943 ah->dah_parent = parent;
2944 ah->dah_mode = child_mode;
2946 if (parent != NULL && !dt_object_remote(parent)) {
2947 /* will help to find FID->ino at dt_insert("..") */
2948 struct osd_object *pobj = osd_dt_obj(parent);
2949 osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
2953 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
2954 struct lu_attr *attr, struct dt_object_format *dof)
2956 struct inode *inode = obj->oo_inode;
2957 __u64 valid = attr->la_valid;
2960 attr->la_valid &= ~(LA_TYPE | LA_MODE);
2962 if (dof->dof_type != DFT_NODE)
2963 attr->la_valid &= ~LA_RDEV;
2964 if ((valid & LA_ATIME) && (attr->la_atime == LTIME_S(inode->i_atime)))
2965 attr->la_valid &= ~LA_ATIME;
2966 if ((valid & LA_CTIME) && (attr->la_ctime == LTIME_S(inode->i_ctime)))
2967 attr->la_valid &= ~LA_CTIME;
2968 if ((valid & LA_MTIME) && (attr->la_mtime == LTIME_S(inode->i_mtime)))
2969 attr->la_valid &= ~LA_MTIME;
2971 result = osd_quota_transfer(inode, attr);
2975 if (attr->la_valid != 0) {
2976 result = osd_inode_setattr(info->oti_env, inode, attr);
2978 * The osd_inode_setattr() should always succeed here. The
2979 * only error that could be returned is EDQUOT when we are
2980 * trying to change the UID or GID of the inode. However, this
2981 * should not happen since quota enforcement is no longer
2982 * enabled on ldiskfs (lquota takes care of it).
2984 LASSERTF(result == 0, "%d\n", result);
2985 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2988 attr->la_valid = valid;
2992 * Helper function for osd_create()
2994 * \retval 0, on success
2996 static int __osd_create(struct osd_thread_info *info, struct osd_object *obj,
2997 struct lu_attr *attr, struct dt_allocation_hint *hint,
2998 struct dt_object_format *dof, struct thandle *th)
3003 osd_trans_exec_op(info->oti_env, th, OSD_OT_CREATE);
3005 /* we drop umask so that permissions we pass are not affected */
3006 umask = current->fs->umask;
3007 current->fs->umask = 0;
3009 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
3011 if (likely(obj->oo_inode != NULL)) {
3012 LASSERT(obj->oo_inode->i_state & I_NEW);
3014 /* Unlock the inode before attr initialization to avoid
3015 * unnecessary dqget operations. LU-6378 */
3016 unlock_new_inode(obj->oo_inode);
3019 if (likely(result == 0)) {
3020 osd_attr_init(info, obj, attr, dof);
3021 osd_object_init0(obj);
3024 /* restore previous umask value */
3025 current->fs->umask = umask;
3027 osd_trans_exec_check(info->oti_env, th, OSD_OT_CREATE);
3033 * Helper function for osd_create()
3035 * \retval 0, on success
3037 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
3038 const struct lu_fid *fid, struct thandle *th)
3040 struct osd_thread_info *info = osd_oti_get(env);
3041 struct osd_inode_id *id = &info->oti_id;
3042 struct osd_device *osd = osd_obj2dev(obj);
3043 struct osd_thandle *oh;
3046 LASSERT(obj->oo_inode != NULL);
3048 oh = container_of0(th, struct osd_thandle, ot_super);
3049 LASSERT(oh->ot_handle);
3050 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3052 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
3053 rc = osd_oi_insert(info, osd, fid, id, oh->ot_handle,
3054 OI_CHECK_FLD, NULL);
3055 osd_trans_exec_check(env, th, OSD_OT_INSERT);
3060 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
3061 u64 seq, struct lu_seq_range *range)
3063 struct seq_server_site *ss = osd_seq_site(osd);
3065 if (fid_seq_is_idif(seq)) {
3066 fld_range_set_ost(range);
3067 range->lsr_index = idif_ost_idx(seq);
3071 if (!fid_seq_in_fldb(seq)) {
3072 fld_range_set_mdt(range);
3074 /* FIXME: If ss is NULL, it suppose not get lsr_index
3076 range->lsr_index = ss->ss_node_id;
3080 LASSERT(ss != NULL);
3081 fld_range_set_any(range);
3082 /* OSD will only do local fld lookup */
3083 return fld_local_lookup(env, ss->ss_server_fld, seq, range);
3086 static int osd_declare_create(const struct lu_env *env, struct dt_object *dt,
3087 struct lu_attr *attr,
3088 struct dt_allocation_hint *hint,
3089 struct dt_object_format *dof,
3090 struct thandle *handle)
3092 struct osd_thandle *oh;
3096 LASSERT(handle != NULL);
3098 oh = container_of0(handle, struct osd_thandle, ot_super);
3099 LASSERT(oh->ot_handle == NULL);
3101 /* EA object consumes more credits than regular object: osd_mk_index
3102 * vs. osd_mkreg: osd_mk_index will create 2 blocks for root_node and
3103 * leaf_node, could involves the block, block bitmap, groups, GDT
3104 * change for each block, so add 4 * 2 credits in that case. */
3105 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
3106 osd_dto_credits_noquota[DTO_OBJECT_CREATE] +
3107 (dof->dof_type == DFT_INDEX) ? 4 * 2 : 0);
3108 /* Reuse idle OI block may cause additional one OI block
3110 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3111 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
3116 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid,
3117 attr->la_projid, 1, oh, osd_dt_obj(dt),
3118 NULL, OSD_QID_INODE);
3122 /* will help to find FID->ino mapping at dt_insert() */
3123 rc = osd_idc_find_and_init(env, osd_obj2dev(osd_dt_obj(dt)),
3130 * Called to destroy on-disk representation of the object
3132 * Concurrency: must be locked
3134 static int osd_declare_destroy(const struct lu_env *env, struct dt_object *dt,
3137 struct osd_object *obj = osd_dt_obj(dt);
3138 struct inode *inode = obj->oo_inode;
3139 struct osd_thandle *oh;
3146 oh = container_of0(th, struct osd_thandle, ot_super);
3147 LASSERT(oh->ot_handle == NULL);
3149 osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
3150 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
3151 /* Recycle idle OI leaf may cause additional three OI blocks
3153 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3154 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3155 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
3156 /* one less inode */
3157 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3158 i_projid_read(inode), -1, oh, obj, NULL,
3162 /* data to be truncated */
3163 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3164 i_projid_read(inode), 0, oh, obj, NULL,
3169 /* will help to find FID->ino when this object is being
3170 * added to PENDING/ */
3171 rc = osd_idc_find_and_init(env, osd_obj2dev(obj), obj);
3176 static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
3179 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3180 struct osd_object *obj = osd_dt_obj(dt);
3181 struct inode *inode = obj->oo_inode;
3182 struct osd_device *osd = osd_obj2dev(obj);
3183 struct osd_thandle *oh;
3187 oh = container_of0(th, struct osd_thandle, ot_super);
3188 LASSERT(oh->ot_handle);
3190 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
3192 if (unlikely(fid_is_acct(fid)))
3195 if (S_ISDIR(inode->i_mode)) {
3196 LASSERT(osd_inode_unlinked(inode) || inode->i_nlink == 1 ||
3197 inode->i_nlink == 2);
3198 /* it will check/delete the inode from remote parent,
3199 * how to optimize it? unlink performance impaction XXX */
3200 result = osd_delete_from_remote_parent(env, osd, obj, oh);
3202 CERROR("%s: delete inode "DFID": rc = %d\n",
3203 osd_name(osd), PFID(fid), result);
3205 spin_lock(&obj->oo_guard);
3207 spin_unlock(&obj->oo_guard);
3208 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3211 osd_trans_exec_op(env, th, OSD_OT_DESTROY);
3213 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
3215 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3216 result = osd_oi_delete(osd_oti_get(env), osd, fid,
3217 oh->ot_handle, OI_CHECK_FLD);
3219 osd_trans_exec_check(env, th, OSD_OT_DESTROY);
3220 /* XXX: add to ext3 orphan list */
3221 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
3223 /* not needed in the cache anymore */
3224 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
3225 obj->oo_destroyed = 1;
3231 * Put the fid into lustre_mdt_attrs, and then place the structure
3232 * inode's ea. This fid should not be altered during the life time
3235 * \retval +ve, on success
3236 * \retval -ve, on error
3238 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
3240 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
3241 const struct lu_fid *fid, __u32 compat, __u32 incompat)
3243 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
3244 struct lustre_mdt_attrs *lma = &loa->loa_lma;
3248 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INLMA))
3251 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_OST_EA_FID_SET))
3254 lustre_loa_init(loa, fid, compat, incompat);
3255 lustre_loa_swab(loa, false);
3257 /* For the OST device with 256 bytes inode size by default,
3258 * the PFID EA will be stored together with LMA EA to avoid
3259 * performance trouble. Otherwise the PFID EA can be stored
3260 * independently. LU-8998 */
3261 if ((compat & LMAC_FID_ON_OST) &&
3262 LDISKFS_INODE_SIZE(inode->i_sb) <= 256)
3263 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3264 sizeof(*loa), XATTR_CREATE);
3266 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3267 sizeof(*lma), XATTR_CREATE);
3268 /* LMA may already exist, but we need to check that all the
3269 * desired compat/incompat flags have been added. */
3270 if (unlikely(rc == -EEXIST)) {
3271 rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
3272 XATTR_NAME_LMA, (void *)loa, sizeof(*loa));
3276 if (rc < sizeof(*lma))
3279 lustre_loa_swab(loa, true);
3280 if (lu_fid_eq(fid, &lma->lma_self_fid) &&
3281 ((compat == 0 && incompat == 0) ||
3282 (!(~lma->lma_compat & compat) &&
3283 !(~lma->lma_incompat & incompat))))
3286 lma->lma_self_fid = *fid;
3287 lma->lma_compat |= compat;
3288 lma->lma_incompat |= incompat;
3289 if (rc == sizeof(*lma)) {
3290 lustre_lma_swab(lma);
3291 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3292 sizeof(*lma), XATTR_REPLACE);
3294 lustre_loa_swab(loa, false);
3295 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3296 sizeof(*loa), XATTR_REPLACE);
3304 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
3305 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
3306 * To have compatilibility with 1.8 ldiskfs driver we need to have
3307 * magic number at start of fid data.
3308 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
3311 static void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
3312 const struct lu_fid *fid)
3314 if (!fid_is_namespace_visible(fid) ||
3315 OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
3316 param->edp_magic = 0;
3320 param->edp_magic = LDISKFS_LUFID_MAGIC;
3321 param->edp_len = sizeof(struct lu_fid) + 1;
3322 fid_cpu_to_be((struct lu_fid *)param->edp_data, (struct lu_fid *)fid);
3326 * Try to read the fid from inode ea into dt_rec.
3328 * \param fid object fid.
3330 * \retval 0 on success
3332 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
3333 __u32 ino, struct lu_fid *fid,
3334 struct osd_inode_id *id)
3336 struct osd_thread_info *info = osd_oti_get(env);
3337 struct inode *inode;
3340 osd_id_gen(id, ino, OSD_OII_NOGEN);
3341 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
3343 RETURN(PTR_ERR(inode));
3349 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
3351 struct inode *parent_dir,
3352 const struct lu_fid *dot_fid,
3353 const struct lu_fid *dot_dot_fid,
3354 struct osd_thandle *oth)
3356 struct ldiskfs_dentry_param *dot_ldp;
3357 struct ldiskfs_dentry_param *dot_dot_ldp;
3358 __u32 saved_nlink = dir->i_nlink;
3361 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
3362 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
3364 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3365 dot_ldp->edp_magic = 0;
3367 rc = ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
3368 dir, dot_ldp, dot_dot_ldp);
3369 /* The ldiskfs_add_dot_dotdot() may dir->i_nlink as 2, then
3370 * the subseqent ref_add() will increase the dir->i_nlink
3371 * as 3. That is incorrect for new created directory.
3373 * It looks like hack, because we want to make the OSD API
3374 * to be order-independent for new created directory object
3375 * between dt_insert(..) and ref_add() operations.
3377 * Here, we only restore the in-RAM dir-inode's nlink attr,
3378 * becuase if the nlink attr is not 2, then there will be
3379 * ref_add() called following the dt_insert(..), such call
3380 * will make both the in-RAM and on-disk dir-inode's nlink
3381 * attr to be set as 2. LU-7447 */
3382 set_nlink(dir, saved_nlink);
3387 * Create an local agent inode for remote entry
3389 static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
3390 struct osd_device *osd,
3391 struct osd_object *pobj,
3392 const struct lu_fid *fid,
3396 struct osd_thread_info *info = osd_oti_get(env);
3397 struct inode *local;
3398 struct osd_thandle *oh;
3403 oh = container_of(th, struct osd_thandle, ot_super);
3404 LASSERT(oh->ot_handle->h_transaction != NULL);
3406 local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, type);
3407 if (IS_ERR(local)) {
3408 CERROR("%s: create local error %d\n", osd_name(osd),
3409 (int)PTR_ERR(local));
3413 /* restore i_gid in case S_ISGID is set, we will inherit S_ISGID and set
3414 * correct gid on remote file, not agent here */
3415 local->i_gid = current_fsgid();
3416 ldiskfs_set_inode_state(local, LDISKFS_STATE_LUSTRE_NOSCRUB);
3417 unlock_new_inode(local);
3419 /* Agent inode should not have project ID */
3420 #ifdef HAVE_PROJECT_QUOTA
3421 if (LDISKFS_I(pobj->oo_inode)->i_flags & LUSTRE_PROJINHERIT_FL) {
3422 rc = __ldiskfs_ioctl_setproject(local, 0);
3424 CERROR("%s: quota transfer failed: rc = %d. Is project "
3425 "quota enforcement enabled on the ldiskfs "
3426 "filesystem?\n", local->i_sb->s_id, rc);
3427 RETURN(ERR_PTR(rc));
3431 /* Set special LMA flag for local agent inode */
3432 rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
3434 CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
3435 osd_name(osd), PFID(fid), rc);
3436 RETURN(ERR_PTR(rc));
3442 rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
3443 lu_object_fid(&pobj->oo_dt.do_lu),
3446 CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
3447 osd_name(osd), PFID(fid), rc);
3448 RETURN(ERR_PTR(rc));
3455 * when direntry is deleted, we have to take care of possible agent inode
3456 * referenced by that. unfortunately we can't do this at that point:
3457 * iget() within a running transaction leads to deadlock and we better do
3458 * not call that every delete declaration to save performance. so we put
3459 * a potention agent inode on a list and process that once the transaction
3460 * is over. Notice it's not any worse in terms of real orphans as regular
3461 * object destroy doesn't put inodes on the on-disk orphan list. this should
3462 * be addressed separately
3464 static int osd_schedule_agent_inode_removal(const struct lu_env *env,
3465 struct osd_thandle *oh,
3468 struct osd_device *osd = osd_dt_dev(oh->ot_super.th_dev);
3469 struct osd_obj_orphan *oor;
3476 oor->oor_env = (struct lu_env *)env;
3477 spin_lock(&osd->od_osfs_lock);
3478 list_add(&oor->oor_list, &osd->od_orphan_list);
3479 spin_unlock(&osd->od_osfs_lock);
3481 oh->ot_remove_agents = 1;
3487 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
3488 struct osd_device *osd)
3490 struct osd_thread_info *info = osd_oti_get(env);
3491 struct osd_obj_orphan *oor, *tmp;
3492 struct osd_inode_id id;
3493 struct list_head list;
3494 struct inode *inode;
3499 INIT_LIST_HEAD(&list);
3501 spin_lock(&osd->od_osfs_lock);
3502 list_for_each_entry_safe(oor, tmp, &osd->od_orphan_list, oor_list) {
3503 if (oor->oor_env == env) {
3504 list_del(&oor->oor_list);
3505 list_add(&oor->oor_list, &list);
3508 spin_unlock(&osd->od_osfs_lock);
3510 list_for_each_entry_safe(oor, tmp, &list, oor_list) {
3514 list_del(&oor->oor_list);
3517 osd_id_gen(&id, ino, OSD_OII_NOGEN);
3518 inode = osd_iget_fid(info, osd, &id, &fid);
3522 if (!osd_remote_fid(env, osd, &fid)) {
3527 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC, 1);
3529 mark_inode_dirty(inode);
3530 ldiskfs_journal_stop(jh);
3538 * OSD layer object create function for OST objects (b=11826).
3540 * The FID is inserted into inode xattr here.
3542 * \retval 0, on success
3543 * \retval -ve, on error
3545 static int osd_create(const struct lu_env *env, struct dt_object *dt,
3546 struct lu_attr *attr, struct dt_allocation_hint *hint,
3547 struct dt_object_format *dof, struct thandle *th)
3549 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3550 struct osd_object *obj = osd_dt_obj(dt);
3551 struct osd_thread_info *info = osd_oti_get(env);
3552 int result, on_ost = 0;
3556 if (dt_object_exists(dt))
3559 LINVRNT(osd_invariant(obj));
3560 LASSERT(!dt_object_remote(dt));
3561 LASSERT(osd_is_write_locked(env, obj));
3562 LASSERT(th != NULL);
3564 if (unlikely(fid_is_acct(fid)))
3565 /* Quota files can't be created from the kernel any more,
3566 * 'tune2fs -O quota' will take care of creating them */
3569 result = __osd_create(info, obj, attr, hint, dof, th);
3571 if (fid_is_idif(fid) &&
3572 !osd_dev(dt->do_lu.lo_dev)->od_index_in_idif) {
3573 struct lu_fid *tfid = &info->oti_fid;
3574 struct ost_id *oi = &info->oti_ostid;
3576 fid_to_ostid(fid, oi);
3577 ostid_to_fid(tfid, oi, 0);
3579 result = osd_ea_fid_set(info, obj->oo_inode, tfid,
3580 LMAC_FID_ON_OST, 0);
3582 on_ost = fid_is_on_ost(info, osd_obj2dev(obj),
3584 result = osd_ea_fid_set(info, obj->oo_inode, fid,
3585 on_ost ? LMAC_FID_ON_OST : 0,
3588 if (obj->oo_dt.do_body_ops == &osd_body_ops_new)
3589 obj->oo_dt.do_body_ops = &osd_body_ops;
3593 result = __osd_oi_insert(env, obj, fid, th);
3595 /* a small optimization - dt_insert() isn't usually applied
3596 * to OST objects, so we don't need to cache OI mapping for
3598 if (result == 0 && on_ost == 0) {
3599 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3600 result = osd_idc_find_and_init(env, osd, obj);
3601 LASSERT(result == 0);
3604 LASSERT(ergo(result == 0,
3605 dt_object_exists(dt) && !dt_object_remote(dt)));
3606 LINVRNT(osd_invariant(obj));
3610 static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
3611 struct thandle *handle)
3613 struct osd_thandle *oh;
3615 /* it's possible that object doesn't exist yet */
3616 LASSERT(handle != NULL);
3618 oh = container_of0(handle, struct osd_thandle, ot_super);
3619 LASSERT(oh->ot_handle == NULL);
3621 osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
3622 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
3628 * Concurrency: @dt is write locked.
3630 static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
3633 struct osd_object *obj = osd_dt_obj(dt);
3634 struct inode *inode = obj->oo_inode;
3635 struct osd_thandle *oh;
3638 if (!dt_object_exists(dt) || obj->oo_destroyed)
3641 LINVRNT(osd_invariant(obj));
3642 LASSERT(!dt_object_remote(dt));
3643 LASSERT(osd_is_write_locked(env, obj));
3644 LASSERT(th != NULL);
3646 oh = container_of0(th, struct osd_thandle, ot_super);
3647 LASSERT(oh->ot_handle != NULL);
3649 osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
3651 CDEBUG(D_INODE, DFID" increase nlink %d\n",
3652 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
3654 * The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
3655 * (65000) subdirectories by storing "1" in i_nlink if the link count
3656 * would otherwise overflow. Directory tranversal tools understand
3657 * that (st_nlink == 1) indicates that the filesystem dose not track
3658 * hard links count on the directory, and will not abort subdirectory
3659 * scanning early once (st_nlink - 2) subdirs have been found.
3661 * This also has to properly handle the case of inodes with nlink == 0
3662 * in case they are being linked into the PENDING directory
3664 spin_lock(&obj->oo_guard);
3665 if (unlikely(inode->i_nlink == 0))
3666 /* inc_nlink from 0 may cause WARN_ON */
3667 set_nlink(inode, 1);
3669 ldiskfs_inc_count(oh->ot_handle, inode);
3670 if (!S_ISDIR(inode->i_mode))
3671 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
3673 spin_unlock(&obj->oo_guard);
3675 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3676 LINVRNT(osd_invariant(obj));
3678 osd_trans_exec_check(env, th, OSD_OT_REF_ADD);
3683 static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
3684 struct thandle *handle)
3686 struct osd_thandle *oh;
3688 if (!dt_object_exists(dt))
3691 LASSERT(!dt_object_remote(dt));
3692 LASSERT(handle != NULL);
3694 oh = container_of0(handle, struct osd_thandle, ot_super);
3695 LASSERT(oh->ot_handle == NULL);
3697 osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
3698 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
3704 * Concurrency: @dt is write locked.
3706 static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
3709 struct osd_object *obj = osd_dt_obj(dt);
3710 struct inode *inode = obj->oo_inode;
3711 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3712 struct osd_thandle *oh;
3714 if (!dt_object_exists(dt))
3717 LINVRNT(osd_invariant(obj));
3718 LASSERT(!dt_object_remote(dt));
3719 LASSERT(osd_is_write_locked(env, obj));
3720 LASSERT(th != NULL);
3722 oh = container_of0(th, struct osd_thandle, ot_super);
3723 LASSERT(oh->ot_handle != NULL);
3725 osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
3727 spin_lock(&obj->oo_guard);
3728 /* That can be result of upgrade from old Lustre version and
3729 * applied only to local files. Just skip this ref_del call.
3730 * ext4_unlink() only treats this as a warning, don't LASSERT here.*/
3731 if (inode->i_nlink == 0) {
3732 CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
3733 D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
3734 ", maybe an upgraded file? (LU-3915)\n",
3735 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
3736 spin_unlock(&obj->oo_guard);
3740 CDEBUG(D_INODE, DFID" decrease nlink %d\n",
3741 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
3743 ldiskfs_dec_count(oh->ot_handle, inode);
3744 spin_unlock(&obj->oo_guard);
3746 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3747 LINVRNT(osd_invariant(obj));
3749 osd_trans_exec_check(env, th, OSD_OT_REF_DEL);
3755 * Concurrency: @dt is read locked.
3757 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
3758 struct lu_buf *buf, const char *name)
3760 struct osd_object *obj = osd_dt_obj(dt);
3761 struct inode *inode = obj->oo_inode;
3762 struct osd_thread_info *info = osd_oti_get(env);
3763 struct dentry *dentry = &info->oti_obj_dentry;
3764 bool cache_xattr = false;
3769 /* version get is not real XATTR but uses xattr API */
3770 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
3771 dt_obj_version_t *ver = buf->lb_buf;
3773 /* for version we are just using xattr API but change inode
3775 if (buf->lb_len == 0)
3776 return sizeof(dt_obj_version_t);
3778 if (buf->lb_len < sizeof(dt_obj_version_t))
3781 CDEBUG(D_INODE, "Get version %#llx for inode %lu\n",
3782 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
3784 *ver = LDISKFS_I(inode)->i_fs_version;
3786 return sizeof(dt_obj_version_t);
3789 if (!dt_object_exists(dt))
3792 LASSERT(!dt_object_remote(dt));
3793 LASSERT(inode->i_op != NULL);
3794 LASSERT(inode->i_op->getxattr != NULL);
3796 if (strcmp(name, XATTR_NAME_LOV) == 0 ||
3797 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0)
3801 rc = osd_oxc_get(obj, name, buf);
3806 rc = __osd_xattr_get(inode, dentry, name, buf->lb_buf, buf->lb_len);
3807 if (rc == -ENODATA && strcmp(name, XATTR_NAME_FID) == 0) {
3808 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
3809 struct lustre_mdt_attrs *lma = &loa->loa_lma;
3810 struct filter_fid *ff;
3811 struct ost_layout *ol;
3813 LASSERT(osd_dev(dt->do_lu.lo_dev)->od_is_ost);
3815 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
3819 if (!(lma->lma_compat & LMAC_STRIPE_INFO)) {
3825 if (buf->lb_len == 0 || !buf->lb_buf)
3828 if (buf->lb_len < rc)
3832 ol = &ff->ff_layout;
3833 ol->ol_stripe_count = cpu_to_le32(loa->loa_parent_fid.f_ver >>
3834 PFID_STRIPE_IDX_BITS);
3835 ol->ol_stripe_size = cpu_to_le32(loa->loa_stripe_size);
3836 loa->loa_parent_fid.f_ver &= PFID_STRIPE_COUNT_MASK;
3837 fid_cpu_to_le(&ff->ff_parent, &loa->loa_parent_fid);
3838 if (lma->lma_compat & LMAC_COMP_INFO) {
3839 ol->ol_comp_start = cpu_to_le64(loa->loa_comp_start);
3840 ol->ol_comp_end = cpu_to_le64(loa->loa_comp_end);
3841 ol->ol_comp_id = cpu_to_le32(loa->loa_comp_id);
3843 ol->ol_comp_start = 0;
3844 ol->ol_comp_end = 0;
3851 if (rc == -ENOENT || rc == -ENODATA)
3852 osd_oxc_add(obj, name, NULL, 0);
3853 else if (rc > 0 && buf->lb_buf != NULL)
3854 osd_oxc_add(obj, name, buf->lb_buf, rc);
3860 static int osd_declare_xattr_set(const struct lu_env *env,
3861 struct dt_object *dt,
3862 const struct lu_buf *buf, const char *name,
3863 int fl, struct thandle *handle)
3865 struct osd_thandle *oh;
3867 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
3869 LASSERT(handle != NULL);
3871 oh = container_of0(handle, struct osd_thandle, ot_super);
3872 LASSERT(oh->ot_handle == NULL);
3874 if (strcmp(name, XATTR_NAME_LMA) == 0) {
3875 /* For non-upgrading case, the LMA is set first and
3876 * usually fit inode. But for upgrade case, the LMA
3877 * may be in another separated EA block. */
3878 if (dt_object_exists(dt)) {
3879 if (fl == LU_XATTR_REPLACE)
3884 } else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
3886 } else if (strcmp(name, XATTR_NAME_FID) == 0) {
3887 /* We may need to delete the old PFID EA. */
3888 credits = LDISKFS_MAXQUOTAS_DEL_BLOCKS(sb);
3889 if (fl == LU_XATTR_REPLACE)
3896 credits += osd_dto_credits_noquota[DTO_XATTR_SET];
3901 if (buf->lb_buf == NULL && dt_object_exists(dt)) {
3902 /* learn xattr size from osd_xattr_get if
3903 attribute has not been read yet */
3904 buflen = __osd_xattr_get(
3905 osd_dt_obj(dt)->oo_inode,
3906 &osd_oti_get(env)->oti_obj_dentry,
3911 buflen = buf->lb_len;
3914 if (buflen > sb->s_blocksize) {
3915 credits += osd_calc_bkmap_credits(
3917 (buflen + sb->s_blocksize - 1) >>
3918 sb->s_blocksize_bits);
3922 * xattr set may involve inode quota change, reserve credits for
3923 * dquot_initialize()
3925 credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
3928 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
3934 * Concurrency: @dt is write locked.
3936 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
3937 const struct lu_buf *buf, const char *name, int fl,
3938 struct thandle *handle)
3940 struct osd_object *obj = osd_dt_obj(dt);
3941 struct inode *inode = obj->oo_inode;
3942 struct osd_thread_info *info = osd_oti_get(env);
3943 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
3944 struct lustre_mdt_attrs *lma = &loa->loa_lma;
3953 /* version set is not real XATTR */
3954 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
3955 dt_obj_version_t *version = buf->lb_buf;
3957 /* for version we are just using xattr API but change inode
3959 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
3961 CDEBUG(D_INODE, "Set version %#llx (old %#llx) for inode %lu\n",
3962 *version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
3964 LDISKFS_I(inode)->i_fs_version = *version;
3965 /* Version is set after all inode operations are finished,
3966 * so we should mark it dirty here */
3967 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3972 CDEBUG(D_INODE, DFID" set xattr '%s' with size %zu\n",
3973 PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
3976 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
3977 if (fl & LU_XATTR_REPLACE)
3978 fs_flags |= XATTR_REPLACE;
3980 if (fl & LU_XATTR_CREATE)
3981 fs_flags |= XATTR_CREATE;
3983 /* For the OST device with 256 bytes inode size by default,
3984 * the PFID EA will be stored together with LMA EA to avoid
3985 * performance trouble. Otherwise the PFID EA can be stored
3986 * independently. LU-8998 */
3987 if (strcmp(name, XATTR_NAME_FID) == 0 &&
3988 LDISKFS_INODE_SIZE(inode->i_sb) <= 256) {
3989 struct dentry *dentry = &info->oti_obj_dentry;
3990 struct filter_fid *ff;
3991 struct ost_layout *ol;
3994 LASSERT(osd_dev(dt->do_lu.lo_dev)->od_is_ost);
3997 ol = &ff->ff_layout;
3998 /* Old client does not send stripe information, store
3999 * the PFID EA on disk directly. */
4000 if (buf->lb_len == sizeof(struct lu_fid) ||
4001 ol->ol_stripe_size == 0) {
4002 len = sizeof(struct lu_fid);
4006 if (buf->lb_len != sizeof(*ff))
4009 rc = osd_get_lma(info, inode, dentry, loa);
4010 if (unlikely(rc == -ENODATA)) {
4011 /* Usually for upgarding from old device */
4012 lustre_loa_init(loa, lu_object_fid(&dt->do_lu),
4013 LMAC_FID_ON_OST, 0);
4021 fid_le_to_cpu(&loa->loa_parent_fid, &ff->ff_parent);
4022 loa->loa_parent_fid.f_ver |= le32_to_cpu(ol->ol_stripe_count) <<
4023 PFID_STRIPE_IDX_BITS;
4024 loa->loa_stripe_size = le32_to_cpu(ol->ol_stripe_size);
4025 lma->lma_compat |= LMAC_STRIPE_INFO;
4026 if (ol->ol_comp_id != 0) {
4027 loa->loa_comp_id = le32_to_cpu(ol->ol_comp_id);
4028 loa->loa_comp_start = le64_to_cpu(ol->ol_comp_start);
4029 loa->loa_comp_end = le64_to_cpu(ol->ol_comp_end);
4030 lma->lma_compat |= LMAC_COMP_INFO;
4033 lustre_loa_swab(loa, false);
4035 /* Remove old PFID EA entry firstly. */
4036 ll_vfs_dq_init(inode);
4037 rc = inode->i_op->removexattr(dentry, name);
4038 if (rc && rc != -ENODATA)
4041 /* Store the PFID EA inside the LMA EA. */
4042 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
4046 } else if (strcmp(name, XATTR_NAME_LMV) == 0) {
4047 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4051 lma->lma_incompat |= LMAI_STRIPED;
4052 lustre_lma_swab(lma);
4053 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4054 sizeof(*lma), XATTR_REPLACE);
4060 rc = __osd_xattr_set(info, inode, name, buf->lb_buf, len, fs_flags);
4061 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4064 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4065 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4066 osd_oxc_add(obj, name, buf->lb_buf, buf->lb_len);
4072 * Concurrency: @dt is read locked.
4074 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
4075 const struct lu_buf *buf)
4077 struct osd_object *obj = osd_dt_obj(dt);
4078 struct inode *inode = obj->oo_inode;
4079 struct osd_thread_info *info = osd_oti_get(env);
4080 struct dentry *dentry = &info->oti_obj_dentry;
4082 if (!dt_object_exists(dt))
4085 LASSERT(!dt_object_remote(dt));
4086 LASSERT(inode->i_op != NULL);
4087 LASSERT(inode->i_op->listxattr != NULL);
4089 dentry->d_inode = inode;
4090 dentry->d_sb = inode->i_sb;
4091 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
4094 static int osd_declare_xattr_del(const struct lu_env *env,
4095 struct dt_object *dt, const char *name,
4096 struct thandle *handle)
4098 struct osd_thandle *oh;
4099 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4101 LASSERT(!dt_object_remote(dt));
4102 LASSERT(handle != NULL);
4104 oh = container_of0(handle, struct osd_thandle, ot_super);
4105 LASSERT(oh->ot_handle == NULL);
4107 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
4108 osd_dto_credits_noquota[DTO_XATTR_SET]);
4110 * xattr del may involve inode quota change, reserve credits for
4111 * dquot_initialize()
4113 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4119 * Concurrency: @dt is write locked.
4121 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
4122 const char *name, struct thandle *handle)
4124 struct osd_object *obj = osd_dt_obj(dt);
4125 struct inode *inode = obj->oo_inode;
4126 struct osd_thread_info *info = osd_oti_get(env);
4127 struct dentry *dentry = &info->oti_obj_dentry;
4130 if (!dt_object_exists(dt))
4133 LASSERT(!dt_object_remote(dt));
4134 LASSERT(inode->i_op != NULL);
4135 LASSERT(inode->i_op->removexattr != NULL);
4136 LASSERT(handle != NULL);
4138 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4140 ll_vfs_dq_init(inode);
4141 dentry->d_inode = inode;
4142 dentry->d_sb = inode->i_sb;
4143 rc = inode->i_op->removexattr(dentry, name);
4144 if (rc == -ENODATA && strcmp(name, XATTR_NAME_FID) == 0) {
4145 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
4147 LASSERT(osd_dev(dt->do_lu.lo_dev)->od_is_ost);
4149 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
4150 &info->oti_ost_attrs);
4152 if (!(lma->lma_compat & LMAC_STRIPE_INFO)) {
4157 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4158 lustre_lma_swab(lma);
4159 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4160 sizeof(*lma), XATTR_REPLACE);
4165 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4168 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4169 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4170 osd_oxc_del(obj, name);
4175 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
4176 __u64 start, __u64 end)
4178 struct osd_object *obj = osd_dt_obj(dt);
4179 struct inode *inode = obj->oo_inode;
4180 struct osd_thread_info *info = osd_oti_get(env);
4181 struct dentry *dentry = &info->oti_obj_dentry;
4182 struct file *file = &info->oti_file;
4187 dentry->d_inode = inode;
4188 dentry->d_sb = inode->i_sb;
4189 file->f_path.dentry = dentry;
4190 file->f_mapping = inode->i_mapping;
4191 file->f_op = inode->i_fop;
4192 set_file_inode(file, inode);
4194 rc = ll_vfs_fsync_range(file, start, end, 0);
4199 static int osd_invalidate(const struct lu_env *env, struct dt_object *dt)
4208 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
4209 const struct dt_index_features *feat)
4211 struct iam_descr *descr;
4213 if (osd_object_is_root(o))
4214 return feat == &dt_directory_features;
4216 LASSERT(o->oo_dir != NULL);
4218 descr = o->oo_dir->od_container.ic_descr;
4219 if (feat == &dt_directory_features) {
4220 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
4226 feat->dif_keysize_min <= descr->id_key_size &&
4227 descr->id_key_size <= feat->dif_keysize_max &&
4228 feat->dif_recsize_min <= descr->id_rec_size &&
4229 descr->id_rec_size <= feat->dif_recsize_max &&
4230 !(feat->dif_flags & (DT_IND_VARKEY |
4231 DT_IND_VARREC | DT_IND_NONUNQ)) &&
4232 ergo(feat->dif_flags & DT_IND_UPDATE,
4233 1 /* XXX check that object (and file system) is
4238 static int osd_iam_container_init(const struct lu_env *env,
4239 struct osd_object *obj,
4240 struct osd_directory *dir)
4242 struct iam_container *bag = &dir->od_container;
4245 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
4249 result = iam_container_setup(bag);
4251 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
4253 iam_container_fini(bag);
4260 * Concurrency: no external locking is necessary.
4262 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
4263 const struct dt_index_features *feat)
4267 struct osd_object *obj = osd_dt_obj(dt);
4269 LINVRNT(osd_invariant(obj));
4271 if (osd_object_is_root(obj)) {
4272 dt->do_index_ops = &osd_index_ea_ops;
4274 } else if (feat == &dt_directory_features) {
4275 dt->do_index_ops = &osd_index_ea_ops;
4276 if (obj->oo_inode == NULL || S_ISDIR(obj->oo_inode->i_mode))
4281 } else if (unlikely(feat == &dt_otable_features)) {
4282 dt->do_index_ops = &osd_otable_ops;
4284 } else if (unlikely(feat == &dt_acct_features)) {
4285 dt->do_index_ops = &osd_acct_index_ops;
4288 } else if (!osd_has_index(obj)) {
4289 struct osd_directory *dir;
4294 spin_lock(&obj->oo_guard);
4295 if (obj->oo_dir == NULL)
4299 * Concurrent thread allocated container data.
4302 spin_unlock(&obj->oo_guard);
4304 * Now, that we have container data, serialize its
4307 down_write(&obj->oo_ext_idx_sem);
4309 * recheck under lock.
4311 if (!osd_has_index(obj))
4312 result = osd_iam_container_init(env, obj,
4316 up_write(&obj->oo_ext_idx_sem);
4324 if (result == 0 && skip_iam == 0) {
4325 if (!osd_iam_index_probe(env, obj, feat))
4328 LINVRNT(osd_invariant(obj));
4333 static int osd_otable_it_attr_get(const struct lu_env *env,
4334 struct dt_object *dt,
4335 struct lu_attr *attr)
4341 static const struct dt_object_operations osd_obj_ops = {
4342 .do_read_lock = osd_read_lock,
4343 .do_write_lock = osd_write_lock,
4344 .do_read_unlock = osd_read_unlock,
4345 .do_write_unlock = osd_write_unlock,
4346 .do_write_locked = osd_write_locked,
4347 .do_attr_get = osd_attr_get,
4348 .do_declare_attr_set = osd_declare_attr_set,
4349 .do_attr_set = osd_attr_set,
4350 .do_ah_init = osd_ah_init,
4351 .do_declare_create = osd_declare_create,
4352 .do_create = osd_create,
4353 .do_declare_destroy = osd_declare_destroy,
4354 .do_destroy = osd_destroy,
4355 .do_index_try = osd_index_try,
4356 .do_declare_ref_add = osd_declare_ref_add,
4357 .do_ref_add = osd_ref_add,
4358 .do_declare_ref_del = osd_declare_ref_del,
4359 .do_ref_del = osd_ref_del,
4360 .do_xattr_get = osd_xattr_get,
4361 .do_declare_xattr_set = osd_declare_xattr_set,
4362 .do_xattr_set = osd_xattr_set,
4363 .do_declare_xattr_del = osd_declare_xattr_del,
4364 .do_xattr_del = osd_xattr_del,
4365 .do_xattr_list = osd_xattr_list,
4366 .do_object_sync = osd_object_sync,
4367 .do_invalidate = osd_invalidate,
4370 static const struct dt_object_operations osd_obj_otable_it_ops = {
4371 .do_attr_get = osd_otable_it_attr_get,
4372 .do_index_try = osd_index_try,
4375 static int osd_index_declare_iam_delete(const struct lu_env *env,
4376 struct dt_object *dt,
4377 const struct dt_key *key,
4378 struct thandle *handle)
4380 struct osd_thandle *oh;
4382 oh = container_of0(handle, struct osd_thandle, ot_super);
4383 LASSERT(oh->ot_handle == NULL);
4385 /* Recycle may cause additional three blocks to be changed. */
4386 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
4387 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
4393 * delete a (key, value) pair from index \a dt specified by \a key
4395 * \param dt osd index object
4396 * \param key key for index
4397 * \param rec record reference
4398 * \param handle transaction handler
4401 * \retval -ve failure
4403 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
4404 const struct dt_key *key,
4405 struct thandle *handle)
4407 struct osd_thread_info *oti = osd_oti_get(env);
4408 struct osd_object *obj = osd_dt_obj(dt);
4409 struct osd_thandle *oh;
4410 struct iam_path_descr *ipd;
4411 struct iam_container *bag = &obj->oo_dir->od_container;
4415 if (!dt_object_exists(dt))
4418 LINVRNT(osd_invariant(obj));
4419 LASSERT(!dt_object_remote(dt));
4420 LASSERT(bag->ic_object == obj->oo_inode);
4421 LASSERT(handle != NULL);
4423 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
4425 ipd = osd_idx_ipd_get(env, bag);
4426 if (unlikely(ipd == NULL))
4429 oh = container_of0(handle, struct osd_thandle, ot_super);
4430 LASSERT(oh->ot_handle != NULL);
4431 LASSERT(oh->ot_handle->h_transaction != NULL);
4433 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
4434 /* swab quota uid/gid provided by caller */
4435 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4436 key = (const struct dt_key *)&oti->oti_quota_id;
4439 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
4440 osd_ipd_put(env, bag, ipd);
4441 LINVRNT(osd_invariant(obj));
4442 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
4446 static int osd_index_declare_ea_delete(const struct lu_env *env,
4447 struct dt_object *dt,
4448 const struct dt_key *key,
4449 struct thandle *handle)
4451 struct osd_thandle *oh;
4452 struct inode *inode;
4456 LASSERT(!dt_object_remote(dt));
4457 LASSERT(handle != NULL);
4459 oh = container_of0(handle, struct osd_thandle, ot_super);
4460 LASSERT(oh->ot_handle == NULL);
4462 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE];
4463 if (key != NULL && unlikely(strcmp((char *)key, dotdot) == 0)) {
4464 /* '..' to a remote object has a local representative */
4465 credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
4466 /* to reset LMAI_REMOTE_PARENT */
4469 osd_trans_declare_op(env, oh, OSD_OT_DELETE, credits);
4471 inode = osd_dt_obj(dt)->oo_inode;
4475 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
4476 i_projid_read(inode), 0, oh, osd_dt_obj(dt),
4481 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
4484 struct osd_fid_pack *rec;
4487 if (de->file_type & LDISKFS_DIRENT_LUFID) {
4488 rec = (struct osd_fid_pack *) (de->name + de->name_len + 1);
4489 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
4490 if (rc == 0 && unlikely(!fid_is_sane((struct lu_fid *)fid)))
4496 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
4497 const struct lu_fid *fid)
4499 struct seq_server_site *ss = osd_seq_site(osd);
4502 /* FID seqs not in FLDB, must be local seq */
4503 if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
4506 /* If FLD is not being initialized yet, it only happens during the
4507 * initialization, likely during mgs initialization, and we assume
4508 * this is local FID. */
4509 if (ss == NULL || ss->ss_server_fld == NULL)
4512 /* Only check the local FLDB here */
4513 if (osd_seq_exists(env, osd, fid_seq(fid)))
4520 * Index delete function for interoperability mode (b11826).
4521 * It will remove the directory entry added by osd_index_ea_insert().
4522 * This entry is needed to maintain name->fid mapping.
4524 * \param key, key i.e. file entry to be deleted
4526 * \retval 0, on success
4527 * \retval -ve, on error
4529 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
4530 const struct dt_key *key, struct thandle *handle)
4532 struct osd_object *obj = osd_dt_obj(dt);
4533 struct inode *dir = obj->oo_inode;
4534 struct dentry *dentry;
4535 struct osd_thandle *oh;
4536 struct ldiskfs_dir_entry_2 *de = NULL;
4537 struct buffer_head *bh;
4538 struct htree_lock *hlock = NULL;
4539 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
4540 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4544 if (!dt_object_exists(dt))
4547 LINVRNT(osd_invariant(obj));
4548 LASSERT(!dt_object_remote(dt));
4549 LASSERT(handle != NULL);
4551 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
4553 oh = container_of(handle, struct osd_thandle, ot_super);
4554 LASSERT(oh->ot_handle != NULL);
4555 LASSERT(oh->ot_handle->h_transaction != NULL);
4557 ll_vfs_dq_init(dir);
4558 dentry = osd_child_dentry_get(env, obj,
4559 (char *)key, strlen((char *)key));
4561 if (obj->oo_hl_head != NULL) {
4562 hlock = osd_oti_get(env)->oti_hlock;
4563 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
4564 dir, LDISKFS_HLOCK_DEL);
4566 down_write(&obj->oo_ext_idx_sem);
4569 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
4571 /* If this is not the ".." entry, it might be a remote DNE
4572 * entry and we need to check if the FID is for a remote
4573 * MDT. If the FID is not in the directory entry (e.g.
4574 * upgraded 1.8 filesystem without dirdata enabled) then
4575 * we need to get the FID from the LMA. For a remote directory
4576 * there HAS to be an LMA, it cannot be an IGIF inode in this
4579 * Delete the entry before the agent inode in order to
4580 * simplify error handling. At worst an error after deleting
4581 * the entry first might leak the agent inode afterward. The
4582 * reverse would need filesystem abort in case of error deleting
4583 * the entry after the agent had been removed, or leave a
4584 * dangling entry pointing at a random inode. */
4585 if (strcmp((char *)key, dotdot) != 0) {
4586 LASSERT(de != NULL);
4587 rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
4588 if (rc == -ENODATA) {
4589 /* can't get FID, postpone to the end of the
4590 * transaction when iget() is safe */
4591 osd_schedule_agent_inode_removal(env, oh,
4592 le32_to_cpu(de->inode));
4593 } else if (rc == 0 &&
4594 unlikely(osd_remote_fid(env, osd, fid))) {
4595 osd_schedule_agent_inode_removal(env, oh,
4596 le32_to_cpu(de->inode));
4599 rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
4605 ldiskfs_htree_unlock(hlock);
4607 up_write(&obj->oo_ext_idx_sem);
4612 /* For inode on the remote MDT, .. will point to
4613 * /Agent directory, Check whether it needs to delete
4614 * from agent directory */
4615 if (unlikely(strcmp((char *)key, dotdot) == 0)) {
4618 ret = osd_delete_from_remote_parent(env, osd_obj2dev(obj),
4621 /* Sigh, the entry has been deleted, and
4622 * it is not easy to revert it back, so
4623 * let's keep this error private, and let
4624 * LFSCK fix it. XXX */
4625 CERROR("%s: delete remote parent "DFID": rc = %d\n",
4626 osd_name(osd), PFID(fid), ret);
4629 LASSERT(osd_invariant(obj));
4630 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
4635 * Lookup index for \a key and copy record to \a rec.
4637 * \param dt osd index object
4638 * \param key key for index
4639 * \param rec record reference
4641 * \retval +ve success : exact mach
4642 * \retval 0 return record with key not greater than \a key
4643 * \retval -ve failure
4645 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
4646 struct dt_rec *rec, const struct dt_key *key)
4648 struct osd_object *obj = osd_dt_obj(dt);
4649 struct iam_path_descr *ipd;
4650 struct iam_container *bag = &obj->oo_dir->od_container;
4651 struct osd_thread_info *oti = osd_oti_get(env);
4652 struct iam_iterator *it = &oti->oti_idx_it;
4653 struct iam_rec *iam_rec;
4657 if (!dt_object_exists(dt))
4660 LASSERT(osd_invariant(obj));
4661 LASSERT(!dt_object_remote(dt));
4662 LASSERT(bag->ic_object == obj->oo_inode);
4664 ipd = osd_idx_ipd_get(env, bag);
4668 /* got ipd now we can start iterator. */
4669 iam_it_init(it, bag, 0, ipd);
4671 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
4672 /* swab quota uid/gid provided by caller */
4673 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4674 key = (const struct dt_key *)&oti->oti_quota_id;
4677 rc = iam_it_get(it, (struct iam_key *)key);
4679 if (S_ISDIR(obj->oo_inode->i_mode))
4680 iam_rec = (struct iam_rec *)oti->oti_ldp;
4682 iam_rec = (struct iam_rec *) rec;
4684 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
4686 if (S_ISDIR(obj->oo_inode->i_mode))
4687 osd_fid_unpack((struct lu_fid *) rec,
4688 (struct osd_fid_pack *)iam_rec);
4689 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
4690 osd_quota_unpack(obj, rec);
4695 osd_ipd_put(env, bag, ipd);
4697 LINVRNT(osd_invariant(obj));
4702 static int osd_index_declare_iam_insert(const struct lu_env *env,
4703 struct dt_object *dt,
4704 const struct dt_rec *rec,
4705 const struct dt_key *key,
4706 struct thandle *handle)
4708 struct osd_thandle *oh;
4710 LASSERT(handle != NULL);
4712 oh = container_of0(handle, struct osd_thandle, ot_super);
4713 LASSERT(oh->ot_handle == NULL);
4715 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4716 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
4722 * Inserts (key, value) pair in \a dt index object.
4724 * \param dt osd index object
4725 * \param key key for index
4726 * \param rec record reference
4727 * \param th transaction handler
4730 * \retval -ve failure
4732 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
4733 const struct dt_rec *rec,
4734 const struct dt_key *key, struct thandle *th,
4737 struct osd_object *obj = osd_dt_obj(dt);
4738 struct iam_path_descr *ipd;
4739 struct osd_thandle *oh;
4740 struct iam_container *bag;
4741 struct osd_thread_info *oti = osd_oti_get(env);
4742 struct iam_rec *iam_rec;
4746 if (!dt_object_exists(dt))
4749 LINVRNT(osd_invariant(obj));
4750 LASSERT(!dt_object_remote(dt));
4752 bag = &obj->oo_dir->od_container;
4753 LASSERT(bag->ic_object == obj->oo_inode);
4754 LASSERT(th != NULL);
4756 osd_trans_exec_op(env, th, OSD_OT_INSERT);
4758 ipd = osd_idx_ipd_get(env, bag);
4759 if (unlikely(ipd == NULL))
4762 oh = container_of0(th, struct osd_thandle, ot_super);
4763 LASSERT(oh->ot_handle != NULL);
4764 LASSERT(oh->ot_handle->h_transaction != NULL);
4765 if (S_ISDIR(obj->oo_inode->i_mode)) {
4766 iam_rec = (struct iam_rec *)oti->oti_ldp;
4767 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec, &oti->oti_fid);
4768 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
4769 /* pack quota uid/gid */
4770 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4771 key = (const struct dt_key *)&oti->oti_quota_id;
4772 /* pack quota record */
4773 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
4774 iam_rec = (struct iam_rec *)rec;
4776 iam_rec = (struct iam_rec *)rec;
4779 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
4781 osd_ipd_put(env, bag, ipd);
4782 LINVRNT(osd_invariant(obj));
4783 osd_trans_exec_check(env, th, OSD_OT_INSERT);
4788 * Calls ldiskfs_add_entry() to add directory entry
4789 * into the directory. This is required for
4790 * interoperability mode (b11826)
4792 * \retval 0, on success
4793 * \retval -ve, on error
4795 static int __osd_ea_add_rec(struct osd_thread_info *info,
4796 struct osd_object *pobj, struct inode *cinode,
4797 const char *name, const struct lu_fid *fid,
4798 struct htree_lock *hlock, struct thandle *th)
4800 struct ldiskfs_dentry_param *ldp;
4801 struct dentry *child;
4802 struct osd_thandle *oth;
4805 oth = container_of(th, struct osd_thandle, ot_super);
4806 LASSERT(oth->ot_handle != NULL);
4807 LASSERT(oth->ot_handle->h_transaction != NULL);
4808 LASSERT(pobj->oo_inode);
4810 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
4811 if (unlikely(pobj->oo_inode ==
4812 osd_sb(osd_obj2dev(pobj))->s_root->d_inode))
4815 osd_get_ldiskfs_dirent_param(ldp, fid);
4816 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
4817 child->d_fsdata = (void *)ldp;
4818 ll_vfs_dq_init(pobj->oo_inode);
4819 rc = osd_ldiskfs_add_entry(info, osd_obj2dev(pobj), oth->ot_handle,
4820 child, cinode, hlock);
4821 if (rc == 0 && OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_TYPE)) {
4822 struct ldiskfs_dir_entry_2 *de;
4823 struct buffer_head *bh;
4826 bh = osd_ldiskfs_find_entry(pobj->oo_inode, &child->d_name, &de,
4829 rc1 = ldiskfs_journal_get_write_access(oth->ot_handle,
4832 if (S_ISDIR(cinode->i_mode))
4833 de->file_type = LDISKFS_DIRENT_LUFID |
4834 LDISKFS_FT_REG_FILE;
4836 de->file_type = LDISKFS_DIRENT_LUFID |
4838 ldiskfs_handle_dirty_metadata(oth->ot_handle,
4849 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
4850 * into the directory.Also sets flags into osd object to
4851 * indicate dot and dotdot are created. This is required for
4852 * interoperability mode (b11826)
4854 * \param dir directory for dot and dotdot fixup.
4855 * \param obj child object for linking
4857 * \retval 0, on success
4858 * \retval -ve, on error
4860 static int osd_add_dot_dotdot(struct osd_thread_info *info,
4861 struct osd_object *dir,
4862 struct inode *parent_dir, const char *name,
4863 const struct lu_fid *dot_fid,
4864 const struct lu_fid *dot_dot_fid,
4867 struct inode *inode = dir->oo_inode;
4868 struct osd_thandle *oth;
4871 oth = container_of(th, struct osd_thandle, ot_super);
4872 LASSERT(oth->ot_handle->h_transaction != NULL);
4873 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
4875 if (strcmp(name, dot) == 0) {
4876 if (dir->oo_compat_dot_created) {
4879 LASSERT(inode->i_ino == parent_dir->i_ino);
4880 dir->oo_compat_dot_created = 1;
4883 } else if (strcmp(name, dotdot) == 0) {
4884 if (!dir->oo_compat_dot_created)
4886 /* in case of rename, dotdot is already created */
4887 if (dir->oo_compat_dotdot_created) {
4888 return __osd_ea_add_rec(info, dir, parent_dir, name,
4889 dot_dot_fid, NULL, th);
4892 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_PARENT)) {
4893 struct lu_fid tfid = *dot_dot_fid;
4896 result = osd_add_dot_dotdot_internal(info,
4897 dir->oo_inode, parent_dir, dot_fid,
4900 result = osd_add_dot_dotdot_internal(info,
4901 dir->oo_inode, parent_dir, dot_fid,
4906 dir->oo_compat_dotdot_created = 1;
4914 * It will call the appropriate osd_add* function and return the
4915 * value, return by respective functions.
4917 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
4918 struct inode *cinode, const char *name,
4919 const struct lu_fid *fid, struct thandle *th)
4921 struct osd_thread_info *info = osd_oti_get(env);
4922 struct htree_lock *hlock;
4925 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
4927 if (name[0] == '.' && (name[1] == '\0' || (name[1] == '.' &&
4929 if (hlock != NULL) {
4930 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
4933 down_write(&pobj->oo_ext_idx_sem);
4936 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
4937 lu_object_fid(&pobj->oo_dt.do_lu),
4940 if (hlock != NULL) {
4941 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
4942 pobj->oo_inode, LDISKFS_HLOCK_ADD);
4944 down_write(&pobj->oo_ext_idx_sem);
4947 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
4948 struct lu_fid *tfid = &info->oti_fid;
4952 rc = __osd_ea_add_rec(info, pobj, cinode, name,
4955 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
4960 ldiskfs_htree_unlock(hlock);
4962 up_write(&pobj->oo_ext_idx_sem);
4968 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
4969 struct osd_idmap_cache *oic)
4971 struct osd_scrub *scrub = &dev->od_scrub;
4972 struct lu_fid *fid = &oic->oic_fid;
4973 struct osd_inode_id *id = &oic->oic_lid;
4974 struct inode *inode = NULL;
4980 if (!fid_is_norm(fid) && !fid_is_igif(fid))
4983 if (scrub->os_pos_current > id->oii_ino)
4987 rc = osd_oi_lookup(oti, dev, fid, &oti->oti_id, 0);
4988 if (rc == -ENOENT) {
4989 __u32 gen = id->oii_gen;
4995 inode = osd_iget(oti, dev, id);
4996 /* The inode has been removed (by race maybe). */
4997 if (IS_ERR(inode)) {
4998 rc = PTR_ERR(inode);
5000 RETURN(rc == -ESTALE ? -ENOENT : rc);
5003 /* The OI mapping is lost. */
5004 if (gen != OSD_OII_NOGEN)
5008 /* The inode may has been reused by others, we do not know,
5009 * leave it to be handled by subsequent osd_fid_lookup(). */
5011 } else if (rc != 0 || osd_id_eq(id, &oti->oti_id)) {
5018 if (thread_is_running(&scrub->os_thread)) {
5019 if (inode == NULL) {
5020 inode = osd_iget(oti, dev, id);
5021 /* The inode has been removed (by race maybe). */
5022 if (IS_ERR(inode)) {
5023 rc = PTR_ERR(inode);
5025 RETURN(rc == -ESTALE ? -ENOENT : rc);
5029 rc = osd_oii_insert(dev, oic, insert);
5030 /* There is race condition between osd_oi_lookup and OI scrub.
5031 * The OI scrub finished just after osd_oi_lookup() failure.
5032 * Under such case, it is unnecessary to trigger OI scrub again,
5033 * but try to call osd_oi_lookup() again. */
5034 if (unlikely(rc == -EAGAIN))
5037 if (!S_ISDIR(inode->i_mode))
5040 rc = osd_check_lmv(oti, dev, inode, oic);
5046 if (!dev->od_noscrub && ++once == 1) {
5047 rc = osd_scrub_start(dev, SS_AUTO_PARTIAL | SS_CLEAR_DRYRUN |
5049 CDEBUG(D_LFSCK | D_CONSOLE | D_WARNING,
5050 "%.16s: trigger partial OI scrub for RPC inconsistency "
5051 "checking FID "DFID": rc = %d\n",
5052 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name,
5054 if (rc == 0 || rc == -EALREADY)
5064 static int osd_fail_fid_lookup(struct osd_thread_info *oti,
5065 struct osd_device *dev,
5066 struct osd_idmap_cache *oic,
5067 struct lu_fid *fid, __u32 ino)
5069 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
5070 struct inode *inode;
5073 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
5074 inode = osd_iget(oti, dev, &oic->oic_lid);
5075 if (IS_ERR(inode)) {
5076 fid_zero(&oic->oic_fid);
5077 return PTR_ERR(inode);
5080 rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, loa);
5083 fid_zero(&oic->oic_fid);
5085 *fid = oic->oic_fid = loa->loa_lma.lma_self_fid;
5089 void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
5090 struct osd_inode_id *id, const struct lu_fid *fid)
5092 CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
5093 id->oii_ino, id->oii_gen, info);
5094 info->oti_cache.oic_lid = *id;
5095 info->oti_cache.oic_fid = *fid;
5096 info->oti_cache.oic_dev = osd;
5100 * Get parent FID from the linkEA.
5102 * For a directory which parent resides on remote MDT, to satisfy the
5103 * local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
5104 * the other hand, to make the lookup(..) on the directory can return
5105 * the real parent FID, we append the real parent FID after its ".."
5106 * name entry in the /REMOTE_PARENT_DIR.
5108 * Unfortunately, such PFID-in-dirent cannot be preserved via file-level
5109 * backup. So after the restore, we cannot get the right parent FID from
5110 * its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
5111 * we have stored the real parent FID in the directory object's linkEA,
5112 * we can parse the linkEA for the real parent FID.
5114 * \param[in] env pointer to the thread context
5115 * \param[in] obj pointer to the object to be handled
5116 * \param[out]fid pointer to the buffer to hold the parent FID
5118 * \retval 0 for getting the real parent FID successfully
5119 * \retval negative error number on failure
5121 static int osd_get_pfid_from_linkea(const struct lu_env *env,
5122 struct osd_object *obj,
5125 struct osd_thread_info *oti = osd_oti_get(env);
5126 struct lu_buf *buf = &oti->oti_big_buf;
5127 struct dentry *dentry = &oti->oti_obj_dentry;
5128 struct inode *inode = obj->oo_inode;
5129 struct linkea_data ldata = { NULL };
5134 if (!S_ISDIR(inode->i_mode))
5138 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5139 buf->lb_buf, buf->lb_len);
5140 if (rc == -ERANGE) {
5141 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5144 lu_buf_realloc(buf, rc);
5145 if (buf->lb_buf == NULL)
5152 if (unlikely(rc == 0))
5158 if (unlikely(buf->lb_buf == NULL)) {
5159 lu_buf_realloc(buf, rc);
5160 if (buf->lb_buf == NULL)
5167 rc = linkea_init_with_rec(&ldata);
5169 linkea_first_entry(&ldata);
5170 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
5176 static int osd_verify_ent_by_linkea(const struct lu_env *env,
5177 struct inode *inode,
5178 const struct lu_fid *pfid,
5179 const char *name, const int namelen)
5181 struct osd_thread_info *oti = osd_oti_get(env);
5182 struct lu_buf *buf = &oti->oti_big_buf;
5183 struct dentry *dentry = &oti->oti_obj_dentry;
5184 struct linkea_data ldata = { NULL };
5185 struct lu_name cname = { .ln_name = name,
5186 .ln_namelen = namelen };
5191 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5192 buf->lb_buf, buf->lb_len);
5194 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK, NULL, 0);
5199 if (unlikely(rc == 0))
5202 if (buf->lb_len < rc) {
5203 lu_buf_realloc(buf, rc);
5204 if (buf->lb_buf == NULL)
5211 rc = linkea_init_with_rec(&ldata);
5213 rc = linkea_links_find(&ldata, &cname, pfid);
5219 * Calls ->lookup() to find dentry. From dentry get inode and
5220 * read inode's ea to get fid. This is required for interoperability
5223 * \retval 0, on success
5224 * \retval -ve, on error
5226 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
5227 struct dt_rec *rec, const struct dt_key *key)
5229 struct inode *dir = obj->oo_inode;
5230 struct dentry *dentry;
5231 struct ldiskfs_dir_entry_2 *de;
5232 struct buffer_head *bh;
5233 struct lu_fid *fid = (struct lu_fid *) rec;
5234 struct htree_lock *hlock = NULL;
5239 LASSERT(dir->i_op != NULL);
5240 LASSERT(dir->i_op->lookup != NULL);
5242 dentry = osd_child_dentry_get(env, obj,
5243 (char *)key, strlen((char *)key));
5245 if (obj->oo_hl_head != NULL) {
5246 hlock = osd_oti_get(env)->oti_hlock;
5247 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5248 dir, LDISKFS_HLOCK_LOOKUP);
5250 down_read(&obj->oo_ext_idx_sem);
5253 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5255 struct osd_thread_info *oti = osd_oti_get(env);
5256 struct osd_inode_id *id = &oti->oti_id;
5257 struct osd_idmap_cache *oic = &oti->oti_cache;
5258 struct osd_device *dev = osd_obj2dev(obj);
5260 ino = le32_to_cpu(de->inode);
5261 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
5263 rc = osd_fail_fid_lookup(oti, dev, oic, fid, ino);
5267 rc = osd_get_fid_from_dentry(de, rec);
5269 /* done with de, release bh */
5272 if (unlikely(ino == osd_remote_parent_ino(dev))) {
5273 const char *name = (const char *)key;
5275 /* If the parent is on remote MDT, and there
5276 * is no FID-in-dirent, then we have to get
5277 * the parent FID from the linkEA. */
5278 if (likely(strlen(name) == 2 &&
5279 name[0] == '.' && name[1] == '.'))
5280 rc = osd_get_pfid_from_linkea(env, obj,
5283 rc = osd_ea_fid_get(env, obj, ino, fid, id);
5286 osd_id_gen(id, ino, OSD_OII_NOGEN);
5289 if (rc != 0 || osd_remote_fid(env, dev, fid)) {
5290 fid_zero(&oic->oic_fid);
5295 osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id, fid);
5296 rc = osd_consistency_check(oti, dev, oic);
5298 fid_zero(&oic->oic_fid);
5307 ldiskfs_htree_unlock(hlock);
5309 up_read(&obj->oo_ext_idx_sem);
5313 static int osd_index_declare_ea_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;
5320 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5321 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
5322 const struct lu_fid *fid = rec1->rec_fid;
5323 int credits, rc = 0;
5324 struct osd_idmap_cache *idc;
5327 LASSERT(!dt_object_remote(dt));
5328 LASSERT(handle != NULL);
5329 LASSERT(fid != NULL);
5330 LASSERT(rec1->rec_type != 0);
5332 oh = container_of0(handle, struct osd_thandle, ot_super);
5333 LASSERT(oh->ot_handle == NULL);
5335 credits = osd_dto_credits_noquota[DTO_INDEX_INSERT];
5337 /* we can't call iget() while a transactions is running
5338 * (this can lead to a deadlock), but we need to know
5339 * inum and object type. so we find this information at
5340 * declaration and cache in per-thread info */
5341 idc = osd_idc_find_or_init(env, osd, fid);
5343 RETURN(PTR_ERR(idc));
5344 if (idc->oic_remote) {
5345 /* a reference to remote inode is represented by an
5346 * agent inode which we have to create */
5347 credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
5348 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
5351 osd_trans_declare_op(env, oh, OSD_OT_INSERT, credits);
5353 if (osd_dt_obj(dt)->oo_inode != NULL) {
5354 struct inode *inode = osd_dt_obj(dt)->oo_inode;
5356 /* We ignore block quota on meta pool (MDTs), so needn't
5357 * calculate how many blocks will be consumed by this index
5359 rc = osd_declare_inode_qid(env, i_uid_read(inode),
5361 i_projid_read(inode), 0,
5362 oh, osd_dt_obj(dt), NULL,
5370 * Index add function for interoperability mode (b11826).
5371 * It will add the directory entry.This entry is needed to
5372 * maintain name->fid mapping.
5374 * \param key it is key i.e. file entry to be inserted
5375 * \param rec it is value of given key i.e. fid
5377 * \retval 0, on success
5378 * \retval -ve, on error
5380 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
5381 const struct dt_rec *rec,
5382 const struct dt_key *key, struct thandle *th,
5385 struct osd_object *obj = osd_dt_obj(dt);
5386 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5387 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
5388 const struct lu_fid *fid = rec1->rec_fid;
5389 const char *name = (const char *)key;
5390 struct osd_thread_info *oti = osd_oti_get(env);
5391 struct inode *child_inode = NULL;
5392 struct osd_idmap_cache *idc;
5396 if (!dt_object_exists(dt))
5399 LASSERT(osd_invariant(obj));
5400 LASSERT(!dt_object_remote(dt));
5401 LASSERT(th != NULL);
5403 osd_trans_exec_op(env, th, OSD_OT_INSERT);
5405 LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
5407 idc = osd_idc_find(env, osd, fid);
5408 if (unlikely(idc == NULL)) {
5409 /* this dt_insert() wasn't declared properly, so
5410 * FID is missing in OI cache. we better do not
5411 * lookup FID in FLDB/OI and don't risk to deadlock,
5412 * but in some special cases (lfsck testing, etc)
5413 * it's much simpler than fixing a caller */
5414 CERROR("%s: "DFID" wasn't declared for insert\n",
5415 osd_name(osd), PFID(fid));
5417 idc = osd_idc_find_or_init(env, osd, fid);
5419 RETURN(PTR_ERR(idc));
5422 if (idc->oic_remote) {
5423 /* Insert remote entry */
5424 if (strcmp(name, dotdot) == 0 && strlen(name) == 2) {
5425 struct osd_mdobj_map *omm = osd->od_mdt_map;
5426 struct osd_thandle *oh;
5428 /* If parent on remote MDT, we need put this object
5430 oh = container_of(th, typeof(*oh), ot_super);
5431 rc = osd_add_to_remote_parent(env, osd, obj, oh);
5433 CERROR("%s: add "DFID" error: rc = %d\n",
5435 PFID(lu_object_fid(&dt->do_lu)), rc);
5439 child_inode = igrab(omm->omm_remote_parent->d_inode);
5441 child_inode = osd_create_local_agent_inode(env, osd,
5442 obj, fid, rec1->rec_type & S_IFMT, th);
5443 if (IS_ERR(child_inode))
5444 RETURN(PTR_ERR(child_inode));
5447 /* Insert local entry */
5448 if (unlikely(idc->oic_lid.oii_ino == 0)) {
5449 /* for a reason OI cache wasn't filled properly */
5450 CERROR("%s: OIC for "DFID" isn't filled\n",
5451 osd_name(osd), PFID(fid));
5454 child_inode = oti->oti_inode;
5455 if (unlikely(child_inode == NULL)) {
5456 struct ldiskfs_inode_info *lii;
5460 child_inode = oti->oti_inode = &lii->vfs_inode;
5462 child_inode->i_sb = osd_sb(osd);
5463 child_inode->i_ino = idc->oic_lid.oii_ino;
5464 child_inode->i_mode = rec1->rec_type & S_IFMT;
5467 rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
5469 CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
5470 obj->oo_inode->i_ino, name, child_inode->i_ino, rc);
5472 if (child_inode && child_inode != oti->oti_inode)
5474 LASSERT(osd_invariant(obj));
5475 osd_trans_exec_check(env, th, OSD_OT_INSERT);
5480 * Initialize osd Iterator for given osd index object.
5482 * \param dt osd index object
5485 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
5486 struct dt_object *dt,
5489 struct osd_it_iam *it;
5490 struct osd_object *obj = osd_dt_obj(dt);
5491 struct lu_object *lo = &dt->do_lu;
5492 struct iam_path_descr *ipd;
5493 struct iam_container *bag = &obj->oo_dir->od_container;
5495 if (!dt_object_exists(dt))
5496 return ERR_PTR(-ENOENT);
5500 return ERR_PTR(-ENOMEM);
5502 ipd = osd_it_ipd_get(env, bag);
5503 if (likely(ipd != NULL)) {
5507 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
5508 return (struct dt_it *)it;
5511 return ERR_PTR(-ENOMEM);
5516 * free given Iterator.
5518 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
5520 struct osd_it_iam *it = (struct osd_it_iam *)di;
5521 struct osd_object *obj = it->oi_obj;
5523 iam_it_fini(&it->oi_it);
5524 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
5525 osd_object_put(env, obj);
5530 * Move Iterator to record specified by \a key
5532 * \param di osd iterator
5533 * \param key key for index
5535 * \retval +ve di points to record with least key not larger than key
5536 * \retval 0 di points to exact matched key
5537 * \retval -ve failure
5540 static int osd_it_iam_get(const struct lu_env *env,
5541 struct dt_it *di, const struct dt_key *key)
5543 struct osd_thread_info *oti = osd_oti_get(env);
5544 struct osd_it_iam *it = (struct osd_it_iam *)di;
5546 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
5547 /* swab quota uid/gid */
5548 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5549 key = (struct dt_key *)&oti->oti_quota_id;
5552 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
5558 * \param di osd iterator
5560 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
5562 struct osd_it_iam *it = (struct osd_it_iam *)di;
5564 iam_it_put(&it->oi_it);
5568 * Move iterator by one record
5570 * \param di osd iterator
5572 * \retval +1 end of container reached
5574 * \retval -ve failure
5577 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
5579 struct osd_it_iam *it = (struct osd_it_iam *)di;
5581 return iam_it_next(&it->oi_it);
5585 * Return pointer to the key under iterator.
5588 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
5589 const struct dt_it *di)
5591 struct osd_thread_info *oti = osd_oti_get(env);
5592 struct osd_it_iam *it = (struct osd_it_iam *)di;
5593 struct osd_object *obj = it->oi_obj;
5596 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
5598 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
5599 /* swab quota uid/gid */
5600 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
5601 key = (struct dt_key *)&oti->oti_quota_id;
5608 * Return size of key under iterator (in bytes)
5611 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
5613 struct osd_it_iam *it = (struct osd_it_iam *)di;
5615 return iam_it_key_size(&it->oi_it);
5619 osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
5621 /* check if file type is required */
5622 if (ent->lde_attrs & LUDA_TYPE) {
5623 struct luda_type *lt;
5624 int align = sizeof(*lt) - 1;
5626 len = (len + align) & ~align;
5627 lt = (struct luda_type *)(ent->lde_name + len);
5628 lt->lt_type = cpu_to_le16(DTTOIF(type));
5631 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
5635 * build lu direct from backend fs dirent.
5639 osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
5640 char *name, __u16 namelen, __u16 type, __u32 attr)
5642 ent->lde_attrs = attr | LUDA_FID;
5643 fid_cpu_to_le(&ent->lde_fid, fid);
5645 ent->lde_hash = cpu_to_le64(offset);
5646 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
5648 strncpy(ent->lde_name, name, namelen);
5649 ent->lde_name[namelen] = '\0';
5650 ent->lde_namelen = cpu_to_le16(namelen);
5652 /* append lustre attributes */
5653 osd_it_append_attrs(ent, namelen, type);
5657 * Return pointer to the record under iterator.
5659 static int osd_it_iam_rec(const struct lu_env *env,
5660 const struct dt_it *di,
5661 struct dt_rec *dtrec, __u32 attr)
5663 struct osd_it_iam *it = (struct osd_it_iam *)di;
5664 struct osd_thread_info *info = osd_oti_get(env);
5667 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
5668 const struct osd_fid_pack *rec;
5669 struct lu_fid *fid = &info->oti_fid;
5670 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
5676 name = (char *)iam_it_key_get(&it->oi_it);
5678 RETURN(PTR_ERR(name));
5680 namelen = iam_it_key_size(&it->oi_it);
5682 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
5684 RETURN(PTR_ERR(rec));
5686 rc = osd_fid_unpack(fid, rec);
5690 hash = iam_it_store(&it->oi_it);
5692 /* IAM does not store object type in IAM index (dir) */
5693 osd_it_pack_dirent(lde, fid, hash, name, namelen,
5695 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
5696 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
5697 (struct iam_rec *)dtrec);
5698 osd_quota_unpack(it->oi_obj, dtrec);
5700 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
5701 (struct iam_rec *)dtrec);
5708 * Returns cookie for current Iterator position.
5710 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
5712 struct osd_it_iam *it = (struct osd_it_iam *)di;
5714 return iam_it_store(&it->oi_it);
5718 * Restore iterator from cookie.
5720 * \param di osd iterator
5721 * \param hash Iterator location cookie
5723 * \retval +ve di points to record with least key not larger than key.
5724 * \retval 0 di points to exact matched key
5725 * \retval -ve failure
5728 static int osd_it_iam_load(const struct lu_env *env,
5729 const struct dt_it *di, __u64 hash)
5731 struct osd_it_iam *it = (struct osd_it_iam *)di;
5733 return iam_it_load(&it->oi_it, hash);
5736 static const struct dt_index_operations osd_index_iam_ops = {
5737 .dio_lookup = osd_index_iam_lookup,
5738 .dio_declare_insert = osd_index_declare_iam_insert,
5739 .dio_insert = osd_index_iam_insert,
5740 .dio_declare_delete = osd_index_declare_iam_delete,
5741 .dio_delete = osd_index_iam_delete,
5743 .init = osd_it_iam_init,
5744 .fini = osd_it_iam_fini,
5745 .get = osd_it_iam_get,
5746 .put = osd_it_iam_put,
5747 .next = osd_it_iam_next,
5748 .key = osd_it_iam_key,
5749 .key_size = osd_it_iam_key_size,
5750 .rec = osd_it_iam_rec,
5751 .store = osd_it_iam_store,
5752 .load = osd_it_iam_load
5758 * Creates or initializes iterator context.
5760 * \retval struct osd_it_ea, iterator structure on success
5763 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
5764 struct dt_object *dt,
5767 struct osd_object *obj = osd_dt_obj(dt);
5768 struct osd_thread_info *info = osd_oti_get(env);
5769 struct osd_it_ea *oie;
5771 struct lu_object *lo = &dt->do_lu;
5772 struct dentry *obj_dentry;
5775 if (!dt_object_exists(dt) || obj->oo_destroyed)
5776 RETURN(ERR_PTR(-ENOENT));
5778 OBD_SLAB_ALLOC_PTR_GFP(oie, osd_itea_cachep, GFP_NOFS);
5780 RETURN(ERR_PTR(-ENOMEM));
5781 obj_dentry = &oie->oie_dentry;
5783 obj_dentry->d_inode = obj->oo_inode;
5784 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
5785 obj_dentry->d_name.hash = 0;
5787 oie->oie_rd_dirent = 0;
5788 oie->oie_it_dirent = 0;
5789 oie->oie_dirent = NULL;
5790 if (unlikely(!info->oti_it_ea_buf_used)) {
5791 oie->oie_buf = info->oti_it_ea_buf;
5792 info->oti_it_ea_buf_used = 1;
5794 OBD_ALLOC(oie->oie_buf, OSD_IT_EA_BUFSIZE);
5795 if (oie->oie_buf == NULL)
5796 RETURN(ERR_PTR(-ENOMEM));
5800 file = &oie->oie_file;
5802 /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
5803 if (attr & LUDA_64BITHASH)
5804 file->f_mode = FMODE_64BITHASH;
5806 file->f_mode = FMODE_32BITHASH;
5807 file->f_path.dentry = obj_dentry;
5808 file->f_mapping = obj->oo_inode->i_mapping;
5809 file->f_op = obj->oo_inode->i_fop;
5810 set_file_inode(file, obj->oo_inode);
5813 RETURN((struct dt_it *) oie);
5817 * Destroy or finishes iterator context.
5819 * \param di iterator structure to be destroyed
5821 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
5823 struct osd_thread_info *info = osd_oti_get(env);
5824 struct osd_it_ea *oie = (struct osd_it_ea *)di;
5825 struct osd_object *obj = oie->oie_obj;
5826 struct inode *inode = obj->oo_inode;
5829 oie->oie_file.f_op->release(inode, &oie->oie_file);
5830 osd_object_put(env, obj);
5831 if (unlikely(oie->oie_buf != info->oti_it_ea_buf))
5832 OBD_FREE(oie->oie_buf, OSD_IT_EA_BUFSIZE);
5834 info->oti_it_ea_buf_used = 0;
5835 OBD_SLAB_FREE_PTR(oie, osd_itea_cachep);
5840 * It position the iterator at given key, so that next lookup continues from
5841 * that key Or it is similar to dio_it->load() but based on a key,
5842 * rather than file position.
5844 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
5847 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
5849 static int osd_it_ea_get(const struct lu_env *env,
5850 struct dt_it *di, const struct dt_key *key)
5852 struct osd_it_ea *it = (struct osd_it_ea *)di;
5855 LASSERT(((const char *)key)[0] == '\0');
5856 it->oie_file.f_pos = 0;
5857 it->oie_rd_dirent = 0;
5858 it->oie_it_dirent = 0;
5859 it->oie_dirent = NULL;
5867 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
5871 struct osd_filldir_cbs {
5872 #ifdef HAVE_DIR_CONTEXT
5873 struct dir_context ctx;
5875 struct osd_it_ea *it;
5878 * It is called internally by ->readdir(). It fills the
5879 * iterator's in-memory data structure with required
5880 * information i.e. name, namelen, rec_size etc.
5882 * \param buf in which information to be filled in.
5883 * \param name name of the file in given dir
5885 * \retval 0 on success
5886 * \retval 1 on buffer full
5888 #ifdef HAVE_FILLDIR_USE_CTX
5889 static int osd_ldiskfs_filldir(struct dir_context *buf,
5891 static int osd_ldiskfs_filldir(void *buf,
5893 const char *name, int namelen,
5894 loff_t offset, __u64 ino, unsigned d_type)
5896 struct osd_it_ea *it =
5897 ((struct osd_filldir_cbs *)buf)->it;
5898 struct osd_object *obj = it->oie_obj;
5899 struct osd_it_ea_dirent *ent = it->oie_dirent;
5900 struct lu_fid *fid = &ent->oied_fid;
5901 struct osd_fid_pack *rec;
5904 /* this should never happen */
5905 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
5906 CERROR("ldiskfs return invalid namelen %d\n", namelen);
5910 if ((void *) ent - it->oie_buf + sizeof(*ent) + namelen >
5914 /* "." is just the object itself. */
5915 if (namelen == 1 && name[0] == '.') {
5916 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
5917 } else if (d_type & LDISKFS_DIRENT_LUFID) {
5918 rec = (struct osd_fid_pack*) (name + namelen + 1);
5919 if (osd_fid_unpack(fid, rec) != 0)
5924 d_type &= ~LDISKFS_DIRENT_LUFID;
5926 /* NOT export local root. */
5927 if (unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
5928 ino = obj->oo_inode->i_ino;
5929 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
5932 ent->oied_ino = ino;
5933 ent->oied_off = offset;
5934 ent->oied_namelen = namelen;
5935 ent->oied_type = d_type;
5937 memcpy(ent->oied_name, name, namelen);
5939 it->oie_rd_dirent++;
5940 it->oie_dirent = (void *) ent + cfs_size_round(sizeof(*ent) + namelen);
5945 * Calls ->readdir() to load a directory entry at a time
5946 * and stored it in iterator's in-memory data structure.
5948 * \param di iterator's in memory structure
5950 * \retval 0 on success
5951 * \retval -ve on error
5952 * \retval +1 reach the end of entry
5954 static int osd_ldiskfs_it_fill(const struct lu_env *env,
5955 const struct dt_it *di)
5957 struct osd_it_ea *it = (struct osd_it_ea *)di;
5958 struct osd_object *obj = it->oie_obj;
5959 struct inode *inode = obj->oo_inode;
5960 struct htree_lock *hlock = NULL;
5961 struct file *filp = &it->oie_file;
5963 struct osd_filldir_cbs buf = {
5964 #ifdef HAVE_DIR_CONTEXT
5965 .ctx.actor = osd_ldiskfs_filldir,
5971 it->oie_dirent = it->oie_buf;
5972 it->oie_rd_dirent = 0;
5974 if (obj->oo_hl_head != NULL) {
5975 hlock = osd_oti_get(env)->oti_hlock;
5976 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5977 inode, LDISKFS_HLOCK_READDIR);
5979 down_read(&obj->oo_ext_idx_sem);
5982 #ifdef HAVE_DIR_CONTEXT
5983 buf.ctx.pos = filp->f_pos;
5984 rc = inode->i_fop->iterate(filp, &buf.ctx);
5985 filp->f_pos = buf.ctx.pos;
5987 rc = inode->i_fop->readdir(filp, &buf, osd_ldiskfs_filldir);
5991 ldiskfs_htree_unlock(hlock);
5993 up_read(&obj->oo_ext_idx_sem);
5995 if (it->oie_rd_dirent == 0) {
5996 /*If it does not get any dirent, it means it has been reached
5997 *to the end of the dir */
5998 it->oie_file.f_pos = ldiskfs_get_htree_eof(&it->oie_file);
6002 it->oie_dirent = it->oie_buf;
6003 it->oie_it_dirent = 1;
6010 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
6011 * to load a directory entry at a time and stored it in
6012 * iterator's in-memory data structure.
6014 * \param di iterator's in memory structure
6016 * \retval +ve iterator reached to end
6017 * \retval 0 iterator not reached to end
6018 * \retval -ve on error
6020 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
6022 struct osd_it_ea *it = (struct osd_it_ea *)di;
6027 if (it->oie_it_dirent < it->oie_rd_dirent) {
6029 (void *) it->oie_dirent +
6030 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
6031 it->oie_dirent->oied_namelen);
6032 it->oie_it_dirent++;
6035 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
6038 rc = osd_ldiskfs_it_fill(env, di);
6045 * Returns the key at current position from iterator's in memory structure.
6047 * \param di iterator's in memory structure
6049 * \retval key i.e. struct dt_key on success
6051 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
6052 const struct dt_it *di)
6054 struct osd_it_ea *it = (struct osd_it_ea *)di;
6056 return (struct dt_key *)it->oie_dirent->oied_name;
6060 * Returns the key's size at current position from iterator's in memory structure.
6062 * \param di iterator's in memory structure
6064 * \retval key_size i.e. struct dt_key on success
6066 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
6068 struct osd_it_ea *it = (struct osd_it_ea *)di;
6070 return it->oie_dirent->oied_namelen;
6073 static inline bool osd_dotdot_has_space(struct ldiskfs_dir_entry_2 *de)
6075 if (LDISKFS_DIR_REC_LEN(de) >=
6076 __LDISKFS_DIR_REC_LEN(2 + 1 + sizeof(struct osd_fid_pack)))
6083 osd_dirent_has_space(struct ldiskfs_dir_entry_2 *de, __u16 namelen,
6084 unsigned blocksize, bool dotdot)
6087 return osd_dotdot_has_space(de);
6089 if (ldiskfs_rec_len_from_disk(de->rec_len, blocksize) >=
6090 __LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
6097 osd_dirent_reinsert(const struct lu_env *env, struct osd_device *dev,
6098 handle_t *jh, struct dentry *dentry,
6099 const struct lu_fid *fid, struct buffer_head *bh,
6100 struct ldiskfs_dir_entry_2 *de, struct htree_lock *hlock,
6103 struct inode *dir = dentry->d_parent->d_inode;
6104 struct inode *inode = dentry->d_inode;
6105 struct osd_fid_pack *rec;
6106 struct ldiskfs_dentry_param *ldp;
6107 int namelen = dentry->d_name.len;
6109 struct osd_thread_info *info = osd_oti_get(env);
6112 if (!LDISKFS_HAS_INCOMPAT_FEATURE(inode->i_sb,
6113 LDISKFS_FEATURE_INCOMPAT_DIRDATA))
6116 /* There is enough space to hold the FID-in-dirent. */
6117 if (osd_dirent_has_space(de, namelen, dir->i_sb->s_blocksize, dotdot)) {
6118 rc = ldiskfs_journal_get_write_access(jh, bh);
6122 de->name[namelen] = 0;
6123 rec = (struct osd_fid_pack *)(de->name + namelen + 1);
6124 rec->fp_len = sizeof(struct lu_fid) + 1;
6125 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
6126 de->file_type |= LDISKFS_DIRENT_LUFID;
6127 rc = ldiskfs_handle_dirty_metadata(jh, NULL, bh);
6134 rc = ldiskfs_delete_entry(jh, dir, de, bh);
6138 ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
6139 osd_get_ldiskfs_dirent_param(ldp, fid);
6140 dentry->d_fsdata = (void *)ldp;
6141 ll_vfs_dq_init(dir);
6142 rc = osd_ldiskfs_add_entry(info, dev, jh, dentry, inode, hlock);
6143 /* It is too bad, we cannot reinsert the name entry back.
6144 * That means we lose it! */
6146 CDEBUG(D_LFSCK, "%.16s: fail to reinsert the dirent, "
6147 "dir = %lu/%u, name = %.*s, "DFID": rc = %d\n",
6148 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
6149 dir->i_ino, dir->i_generation, namelen,
6150 dentry->d_name.name, PFID(fid), rc);
6156 osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
6157 struct osd_it_ea *it, struct lu_fid *fid,
6158 struct osd_inode_id *id, __u32 *attr)
6160 struct osd_thread_info *info = osd_oti_get(env);
6161 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
6162 struct osd_device *dev = osd_obj2dev(obj);
6163 struct super_block *sb = osd_sb(dev);
6164 const char *devname = osd_name(dev);
6165 struct osd_it_ea_dirent *ent = it->oie_dirent;
6166 struct inode *dir = obj->oo_inode;
6167 struct htree_lock *hlock = NULL;
6168 struct buffer_head *bh = NULL;
6169 handle_t *jh = NULL;
6170 struct ldiskfs_dir_entry_2 *de;
6171 struct dentry *dentry;
6172 struct inode *inode;
6173 const struct lu_fid *pfid = lu_object_fid(&obj->oo_dt.do_lu);
6176 bool dotdot = false;
6180 if (ent->oied_name[0] == '.') {
6181 if (ent->oied_namelen == 1)
6184 if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
6188 osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
6189 inode = osd_iget(info, dev, id);
6190 if (IS_ERR(inode)) {
6191 rc = PTR_ERR(inode);
6192 if (rc == -ENOENT || rc == -ESTALE) {
6193 /* Maybe dangling name entry, or
6194 * corrupted directory entry. */
6195 *attr |= LUDA_UNKNOWN;
6198 CDEBUG(D_LFSCK, "%s: fail to iget() for dirent "
6199 "check_repair, dir = %lu/%u, name = %.*s, "
6200 "ino = %llu, rc = %d\n",
6201 devname, dir->i_ino, dir->i_generation,
6202 ent->oied_namelen, ent->oied_name,
6209 dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
6211 rc = osd_get_lma(info, inode, dentry, &info->oti_ost_attrs);
6212 if (rc == -ENODATA || !fid_is_sane(&lma->lma_self_fid))
6217 /* We need to ensure that the name entry is still valid.
6218 * Because it may be removed or renamed by other already.
6220 * The unlink or rename operation will start journal before PDO lock,
6221 * so to avoid deadlock, here we need to start journal handle before
6222 * related PDO lock also. But because we do not know whether there
6223 * will be something to be repaired before PDO lock, we just start
6224 * journal without conditions.
6226 * We may need to remove the name entry firstly, then insert back.
6227 * One credit is for user quota file update.
6228 * One credit is for group quota file update.
6229 * Two credits are for dirty inode. */
6230 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
6231 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
6233 if (dev->od_dirent_journal != 0) {
6236 jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
6239 CDEBUG(D_LFSCK, "%s: fail to start trans for dirent "
6240 "check_repair, dir = %lu/%u, credits = %d, "
6241 "name = %.*s, ino = %llu: rc = %d\n",
6242 devname, dir->i_ino, dir->i_generation, credits,
6243 ent->oied_namelen, ent->oied_name,
6246 GOTO(out_inode, rc);
6249 if (obj->oo_hl_head != NULL) {
6250 hlock = osd_oti_get(env)->oti_hlock;
6251 /* "0" means exclusive lock for the whole directory.
6252 * We need to prevent others access such name entry
6253 * during the delete + insert. Neither HLOCK_ADD nor
6254 * HLOCK_DEL cannot guarantee the atomicity. */
6255 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
6257 down_write(&obj->oo_ext_idx_sem);
6260 if (obj->oo_hl_head != NULL) {
6261 hlock = osd_oti_get(env)->oti_hlock;
6262 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
6263 LDISKFS_HLOCK_LOOKUP);
6265 down_read(&obj->oo_ext_idx_sem);
6269 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
6270 if (IS_ERR(bh) || le32_to_cpu(de->inode) != inode->i_ino) {
6271 *attr |= LUDA_IGNORE;
6276 /* For dotdot entry, if there is not enough space to hold the
6277 * FID-in-dirent, just keep them there. It only happens when the
6278 * device upgraded from 1.8 or restored from MDT file-level backup.
6279 * For the whole directory, only dotdot entry have no FID-in-dirent
6280 * and needs to get FID from LMA when readdir, it will not affect the
6281 * performance much. */
6282 if (dotdot && !osd_dotdot_has_space(de)) {
6283 *attr |= LUDA_UNKNOWN;
6289 if (lu_fid_eq(fid, &lma->lma_self_fid))
6292 if (unlikely(lma->lma_compat & LMAC_NOT_IN_OI)) {
6293 struct lu_fid *tfid = &lma->lma_self_fid;
6295 if (likely(dotdot &&
6296 fid_seq(tfid) == FID_SEQ_LOCAL_FILE &&
6297 fid_oid(tfid) == REMOTE_PARENT_DIR_OID)) {
6298 /* It must be REMOTE_PARENT_DIR and as the
6299 * 'dotdot' entry of remote directory */
6300 *attr |= LUDA_IGNORE;
6302 CDEBUG(D_LFSCK, "%s: expect remote agent "
6303 "parent directory, but got %.*s under "
6304 "dir = %lu/%u with the FID "DFID"\n",
6305 devname, ent->oied_namelen,
6306 ent->oied_name, dir->i_ino,
6307 dir->i_generation, PFID(tfid));
6309 *attr |= LUDA_UNKNOWN;
6316 if (!fid_is_zero(fid)) {
6317 rc = osd_verify_ent_by_linkea(env, inode, pfid, ent->oied_name,
6319 if (rc == -ENOENT ||
6321 !(dev->od_scrub.os_file.sf_flags & SF_UPGRADE))) {
6322 /* linkEA does not recognize the dirent entry,
6323 * it may because the dirent entry corruption
6324 * and points to other's inode. */
6325 CDEBUG(D_LFSCK, "%s: the target inode does not "
6326 "recognize the dirent, dir = %lu/%u, "
6327 " name = %.*s, ino = %llu, "
6328 DFID": rc = %d\n", devname, dir->i_ino,
6329 dir->i_generation, ent->oied_namelen,
6330 ent->oied_name, ent->oied_ino, PFID(fid), rc);
6331 *attr |= LUDA_UNKNOWN;
6336 if (rc && rc != -ENODATA) {
6337 CDEBUG(D_LFSCK, "%s: fail to verify FID in the dirent, "
6338 "dir = %lu/%u, name = %.*s, ino = %llu, "
6339 DFID": rc = %d\n", devname, dir->i_ino,
6340 dir->i_generation, ent->oied_namelen,
6341 ent->oied_name, ent->oied_ino, PFID(fid), rc);
6342 *attr |= LUDA_UNKNOWN;
6349 /* linkEA recognizes the dirent entry, the FID-in-LMA is
6350 * valid, trusted, in spite of fid_is_sane(fid) or not. */
6351 if (*attr & LUDA_VERIFY_DRYRUN) {
6352 *fid = lma->lma_self_fid;
6353 *attr |= LUDA_REPAIR;
6360 dev->od_dirent_journal = 1;
6361 if (hlock != NULL) {
6362 ldiskfs_htree_unlock(hlock);
6365 up_read(&obj->oo_ext_idx_sem);
6371 *fid = lma->lma_self_fid;
6373 /* Update or append the FID-in-dirent. */
6374 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
6375 bh, de, hlock, dotdot);
6377 *attr |= LUDA_REPAIR;
6379 CDEBUG(D_LFSCK, "%s: fail to re-insert FID after "
6380 "the dirent, dir = %lu/%u, name = %.*s, "
6381 "ino = %llu, "DFID": rc = %d\n",
6382 devname, dir->i_ino, dir->i_generation,
6383 ent->oied_namelen, ent->oied_name,
6384 ent->oied_ino, PFID(fid), rc);
6386 /* lma is NULL, trust the FID-in-dirent if it is valid. */
6387 if (*attr & LUDA_VERIFY_DRYRUN) {
6388 if (fid_is_sane(fid)) {
6389 *attr |= LUDA_REPAIR;
6390 } else if (dev->od_index == 0) {
6391 lu_igif_build(fid, inode->i_ino,
6392 inode->i_generation);
6393 *attr |= LUDA_UPGRADE;
6401 dev->od_dirent_journal = 1;
6402 if (hlock != NULL) {
6403 ldiskfs_htree_unlock(hlock);
6406 up_read(&obj->oo_ext_idx_sem);
6413 if (unlikely(fid_is_sane(fid))) {
6414 /* FID-in-dirent exists, but FID-in-LMA is lost.
6415 * Trust the FID-in-dirent, and add FID-in-LMA. */
6416 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
6418 *attr |= LUDA_REPAIR;
6420 CDEBUG(D_LFSCK, "%s: fail to set LMA for "
6421 "update dirent, dir = %lu/%u, "
6422 "name = %.*s, ino = %llu, "
6424 devname, dir->i_ino, dir->i_generation,
6425 ent->oied_namelen, ent->oied_name,
6426 ent->oied_ino, PFID(fid), rc);
6427 } else if (dev->od_index == 0) {
6428 lu_igif_build(fid, inode->i_ino, inode->i_generation);
6429 /* It is probably IGIF object. Only aappend the
6430 * FID-in-dirent. OI scrub will process FID-in-LMA. */
6431 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
6432 bh, de, hlock, dotdot);
6434 *attr |= LUDA_UPGRADE;
6436 CDEBUG(D_LFSCK, "%s: fail to append IGIF "
6437 "after the dirent, dir = %lu/%u, "
6438 "name = %.*s, ino = %llu, "
6440 devname, dir->i_ino, dir->i_generation,
6441 ent->oied_namelen, ent->oied_name,
6442 ent->oied_ino, PFID(fid), rc);
6451 if (hlock != NULL) {
6452 ldiskfs_htree_unlock(hlock);
6454 if (dev->od_dirent_journal != 0)
6455 up_write(&obj->oo_ext_idx_sem);
6457 up_read(&obj->oo_ext_idx_sem);
6461 ldiskfs_journal_stop(jh);
6465 if (rc >= 0 && !dirty)
6466 dev->od_dirent_journal = 0;
6472 * Returns the value at current position from iterator's in memory structure.
6474 * \param di struct osd_it_ea, iterator's in memory structure
6475 * \param attr attr requested for dirent.
6476 * \param lde lustre dirent
6478 * \retval 0 no error and \param lde has correct lustre dirent.
6479 * \retval -ve on error
6481 static inline int osd_it_ea_rec(const struct lu_env *env,
6482 const struct dt_it *di,
6483 struct dt_rec *dtrec, __u32 attr)
6485 struct osd_it_ea *it = (struct osd_it_ea *)di;
6486 struct osd_object *obj = it->oie_obj;
6487 struct osd_device *dev = osd_obj2dev(obj);
6488 struct osd_thread_info *oti = osd_oti_get(env);
6489 struct osd_inode_id *id = &oti->oti_id;
6490 struct lu_fid *fid = &it->oie_dirent->oied_fid;
6491 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
6492 __u32 ino = it->oie_dirent->oied_ino;
6496 LASSERT(obj->oo_inode != dev->od_mdt_map->omm_remote_parent->d_inode);
6498 if (attr & LUDA_VERIFY) {
6499 if (unlikely(ino == osd_remote_parent_ino(dev))) {
6500 attr |= LUDA_IGNORE;
6501 /* If the parent is on remote MDT, and there
6502 * is no FID-in-dirent, then we have to get
6503 * the parent FID from the linkEA. */
6504 if (!fid_is_sane(fid) &&
6505 it->oie_dirent->oied_namelen == 2 &&
6506 it->oie_dirent->oied_name[0] == '.' &&
6507 it->oie_dirent->oied_name[1] == '.')
6508 osd_get_pfid_from_linkea(env, obj, fid);
6510 rc = osd_dirent_check_repair(env, obj, it, fid, id,
6514 if (!fid_is_sane(fid))
6515 attr |= LUDA_UNKNOWN;
6517 attr &= ~LU_DIRENT_ATTRS_MASK;
6518 if (!fid_is_sane(fid)) {
6519 bool is_dotdot = false;
6520 if (it->oie_dirent->oied_namelen == 2 &&
6521 it->oie_dirent->oied_name[0] == '.' &&
6522 it->oie_dirent->oied_name[1] == '.')
6524 /* If the parent is on remote MDT, and there
6525 * is no FID-in-dirent, then we have to get
6526 * the parent FID from the linkEA. */
6527 if (ino == osd_remote_parent_ino(dev) && is_dotdot) {
6528 rc = osd_get_pfid_from_linkea(env, obj, fid);
6530 if (is_dotdot == false &&
6531 OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP))
6534 rc = osd_ea_fid_get(env, obj, ino, fid, id);
6537 osd_id_gen(id, ino, OSD_OII_NOGEN);
6541 /* Pack the entry anyway, at least the offset is right. */
6542 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
6543 it->oie_dirent->oied_name,
6544 it->oie_dirent->oied_namelen,
6545 it->oie_dirent->oied_type, attr);
6550 if (osd_remote_fid(env, dev, fid))
6553 if (likely(!(attr & (LUDA_IGNORE | LUDA_UNKNOWN)) && rc == 0))
6554 osd_add_oi_cache(oti, dev, id, fid);
6556 RETURN(rc > 0 ? 0 : rc);
6560 * Returns the record size size at current position.
6562 * This function will return record(lu_dirent) size in bytes.
6564 * \param[in] env execution environment
6565 * \param[in] di iterator's in memory structure
6566 * \param[in] attr attribute of the entry, only requires LUDA_TYPE to
6567 * calculate the lu_dirent size.
6569 * \retval record size(in bytes & in memory) of the current lu_dirent
6572 static int osd_it_ea_rec_size(const struct lu_env *env, const struct dt_it *di,
6575 struct osd_it_ea *it = (struct osd_it_ea *)di;
6577 return lu_dirent_calc_size(it->oie_dirent->oied_namelen, attr);
6581 * Returns a cookie for current position of the iterator head, so that
6582 * user can use this cookie to load/start the iterator next time.
6584 * \param di iterator's in memory structure
6586 * \retval cookie for current position, on success
6588 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
6590 struct osd_it_ea *it = (struct osd_it_ea *)di;
6592 return it->oie_dirent->oied_off;
6596 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
6597 * to load a directory entry at a time and stored it i inn,
6598 * in iterator's in-memory data structure.
6600 * \param di struct osd_it_ea, iterator's in memory structure
6602 * \retval +ve on success
6603 * \retval -ve on error
6605 static int osd_it_ea_load(const struct lu_env *env,
6606 const struct dt_it *di, __u64 hash)
6608 struct osd_it_ea *it = (struct osd_it_ea *)di;
6612 it->oie_file.f_pos = hash;
6614 rc = osd_ldiskfs_it_fill(env, di);
6625 * Index lookup function for interoperability mode (b11826).
6627 * \param key, key i.e. file name to be searched
6629 * \retval +ve, on success
6630 * \retval -ve, on error
6632 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
6633 struct dt_rec *rec, const struct dt_key *key)
6635 struct osd_object *obj = osd_dt_obj(dt);
6640 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
6641 LINVRNT(osd_invariant(obj));
6643 rc = osd_ea_lookup_rec(env, obj, rec, key);
6650 * Index and Iterator operations for interoperability
6651 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
6653 static const struct dt_index_operations osd_index_ea_ops = {
6654 .dio_lookup = osd_index_ea_lookup,
6655 .dio_declare_insert = osd_index_declare_ea_insert,
6656 .dio_insert = osd_index_ea_insert,
6657 .dio_declare_delete = osd_index_declare_ea_delete,
6658 .dio_delete = osd_index_ea_delete,
6660 .init = osd_it_ea_init,
6661 .fini = osd_it_ea_fini,
6662 .get = osd_it_ea_get,
6663 .put = osd_it_ea_put,
6664 .next = osd_it_ea_next,
6665 .key = osd_it_ea_key,
6666 .key_size = osd_it_ea_key_size,
6667 .rec = osd_it_ea_rec,
6668 .rec_size = osd_it_ea_rec_size,
6669 .store = osd_it_ea_store,
6670 .load = osd_it_ea_load
6674 static void *osd_key_init(const struct lu_context *ctx,
6675 struct lu_context_key *key)
6677 struct osd_thread_info *info;
6679 OBD_ALLOC_PTR(info);
6681 return ERR_PTR(-ENOMEM);
6683 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
6684 if (info->oti_it_ea_buf == NULL)
6687 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
6689 info->oti_hlock = ldiskfs_htree_lock_alloc();
6690 if (info->oti_hlock == NULL)
6696 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
6699 return ERR_PTR(-ENOMEM);
6702 static void osd_key_fini(const struct lu_context *ctx,
6703 struct lu_context_key *key, void* data)
6705 struct osd_thread_info *info = data;
6706 struct ldiskfs_inode_info *lli = LDISKFS_I(info->oti_inode);
6707 struct osd_idmap_cache *idc = info->oti_ins_cache;
6709 if (info->oti_inode != NULL)
6711 if (info->oti_hlock != NULL)
6712 ldiskfs_htree_lock_free(info->oti_hlock);
6713 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
6714 lu_buf_free(&info->oti_iobuf.dr_pg_buf);
6715 lu_buf_free(&info->oti_iobuf.dr_bl_buf);
6716 lu_buf_free(&info->oti_big_buf);
6718 LASSERT(info->oti_ins_cache_size > 0);
6719 OBD_FREE(idc, sizeof(*idc) * info->oti_ins_cache_size);
6720 info->oti_ins_cache = NULL;
6721 info->oti_ins_cache_size = 0;
6726 static void osd_key_exit(const struct lu_context *ctx,
6727 struct lu_context_key *key, void *data)
6729 struct osd_thread_info *info = data;
6731 LASSERT(info->oti_r_locks == 0);
6732 LASSERT(info->oti_w_locks == 0);
6733 LASSERT(info->oti_txns == 0);
6736 /* type constructor/destructor: osd_type_init, osd_type_fini */
6737 LU_TYPE_INIT_FINI(osd, &osd_key);
6739 struct lu_context_key osd_key = {
6740 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
6741 .lct_init = osd_key_init,
6742 .lct_fini = osd_key_fini,
6743 .lct_exit = osd_key_exit
6747 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
6748 const char *name, struct lu_device *next)
6750 struct osd_device *osd = osd_dev(d);
6752 if (strlcpy(osd->od_svname, name, sizeof(osd->od_svname))
6753 >= sizeof(osd->od_svname))
6755 return osd_procfs_init(osd, name);
6758 static int osd_fid_init(const struct lu_env *env, struct osd_device *osd)
6760 struct seq_server_site *ss = osd_seq_site(osd);
6764 if (osd->od_is_ost || osd->od_cl_seq != NULL)
6767 if (unlikely(ss == NULL))
6770 OBD_ALLOC_PTR(osd->od_cl_seq);
6771 if (osd->od_cl_seq == NULL)
6774 rc = seq_client_init(osd->od_cl_seq, NULL, LUSTRE_SEQ_METADATA,
6775 osd->od_svname, ss->ss_server_seq);
6777 OBD_FREE_PTR(osd->od_cl_seq);
6778 osd->od_cl_seq = NULL;
6782 if (ss->ss_node_id == 0) {
6783 /* If the OSD on the sequence controller(MDT0), then allocate
6784 * sequence here, otherwise allocate sequence after connected
6785 * to MDT0 (see mdt_register_lwp_callback()). */
6786 rc = seq_server_alloc_meta(osd->od_cl_seq->lcs_srv,
6787 &osd->od_cl_seq->lcs_space, env);
6793 static void osd_fid_fini(const struct lu_env *env, struct osd_device *osd)
6795 if (osd->od_cl_seq == NULL)
6798 seq_client_fini(osd->od_cl_seq);
6799 OBD_FREE_PTR(osd->od_cl_seq);
6800 osd->od_cl_seq = NULL;
6803 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
6807 /* shutdown quota slave instance associated with the device */
6808 if (o->od_quota_slave != NULL) {
6809 qsd_fini(env, o->od_quota_slave);
6810 o->od_quota_slave = NULL;
6813 osd_fid_fini(env, o);
6818 static void osd_umount(const struct lu_env *env, struct osd_device *o)
6822 if (o->od_mnt != NULL) {
6823 shrink_dcache_sb(osd_sb(o));
6824 osd_sync(env, &o->od_dt_dev);
6833 static int osd_mount(const struct lu_env *env,
6834 struct osd_device *o, struct lustre_cfg *cfg)
6836 const char *name = lustre_cfg_string(cfg, 0);
6837 const char *dev = lustre_cfg_string(cfg, 1);
6839 unsigned long page, s_flags, lmd_flags = 0;
6840 struct page *__page;
6841 struct file_system_type *type;
6842 char *options = NULL;
6844 struct osd_thread_info *info = osd_oti_get(env);
6845 struct lu_fid *fid = &info->oti_fid;
6846 struct inode *inode;
6847 int rc = 0, force_over_512tb = 0;
6850 if (o->od_mnt != NULL)
6853 if (strlen(dev) >= sizeof(o->od_mntdev))
6855 strcpy(o->od_mntdev, dev);
6857 str = lustre_cfg_string(cfg, 2);
6858 s_flags = simple_strtoul(str, NULL, 0);
6859 str = strstr(str, ":");
6861 lmd_flags = simple_strtoul(str + 1, NULL, 0);
6862 opts = lustre_cfg_string(cfg, 3);
6864 if (opts == NULL || strstr(opts, "bigendian_extents") == NULL) {
6865 CERROR("%s: device %s extents feature is not guaranteed to "
6866 "work on big-endian systems. Use \"bigendian_extents\" "
6867 "mount option to override.\n", name, dev);
6871 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6872 if (opts != NULL && strstr(opts, "force_over_128tb") != NULL) {
6873 CWARN("force_over_128tb option is deprecated. "
6874 "Filesystems less than 512TB can be created without any "
6875 "force options. Use force_over_512tb option for "
6876 "filesystems greater than 512TB.\n");
6879 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 1, 53, 0)
6880 if (opts != NULL && strstr(opts, "force_over_256tb") != NULL) {
6881 CWARN("force_over_256tb option is deprecated. "
6882 "Filesystems less than 512TB can be created without any "
6883 "force options. Use force_over_512tb option for "
6884 "filesystems greater than 512TB.\n");
6888 if (opts != NULL && strstr(opts, "force_over_512tb") != NULL)
6889 force_over_512tb = 1;
6891 __page = alloc_page(GFP_KERNEL);
6893 GOTO(out, rc = -ENOMEM);
6894 page = (unsigned long)page_address(__page);
6895 options = (char *)page;
6898 /* strip out the options for back compatiblity */
6899 static char *sout[] = {
6906 /* strip out option we processed in osd */
6907 "bigendian_extents",
6913 strcat(options, opts);
6914 for (rc = 0, str = options; sout[rc]; ) {
6915 char *op = strstr(str, sout[rc]);
6921 if (op == options || *(op - 1) == ',') {
6922 str = op + strlen(sout[rc]);
6923 if (*str == ',' || *str == '\0') {
6924 *str == ',' ? str++ : str;
6925 memmove(op, str, strlen(str) + 1);
6928 for (str = op; *str != ',' && *str != '\0'; str++)
6932 strncat(options, "user_xattr,acl", 14);
6935 /* Glom up mount options */
6936 if (*options != '\0')
6937 strcat(options, ",");
6938 strlcat(options, "no_mbcache,nodelalloc", PAGE_SIZE);
6940 type = get_fs_type("ldiskfs");
6942 CERROR("%s: cannot find ldiskfs module\n", name);
6943 GOTO(out, rc = -ENODEV);
6946 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
6947 module_put(type->owner);
6949 if (IS_ERR(o->od_mnt)) {
6950 rc = PTR_ERR(o->od_mnt);
6952 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
6956 if (ldiskfs_blocks_count(LDISKFS_SB(osd_sb(o))->s_es) <<
6957 osd_sb(o)->s_blocksize_bits > 512ULL << 40 &&
6958 force_over_512tb == 0) {
6959 CERROR("%s: device %s LDISKFS does not support filesystems "
6960 "greater than 512TB and can cause data corruption. "
6961 "Use \"force_over_512tb\" mount option to override.\n",
6963 GOTO(out_mnt, rc = -EINVAL);
6966 if (lmd_flags & LMD_FLG_DEV_RDONLY) {
6967 #ifdef HAVE_DEV_SET_RDONLY
6968 dev_set_rdonly(osd_sb(o)->s_bdev);
6969 o->od_dt_dev.dd_rdonly = 1;
6970 LCONSOLE_WARN("%s: set dev_rdonly on this device\n", name);
6972 LCONSOLE_WARN("%s: not support dev_rdonly on this device",
6975 GOTO(out_mnt, rc = -EOPNOTSUPP);
6978 #ifdef HAVE_DEV_SET_RDONLY
6979 if (dev_check_rdonly(osd_sb(o)->s_bdev)) {
6980 CERROR("%s: underlying device %s is marked as "
6981 "read-only. Setup failed\n", name, dev);
6983 GOTO(out_mnt, rc = -EROFS);
6988 if (!LDISKFS_HAS_COMPAT_FEATURE(o->od_mnt->mnt_sb,
6989 LDISKFS_FEATURE_COMPAT_HAS_JOURNAL)) {
6990 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
6991 GOTO(out_mnt, rc = -EINVAL);
6994 #ifdef LDISKFS_MOUNT_DIRDATA
6995 if (LDISKFS_HAS_INCOMPAT_FEATURE(o->od_mnt->mnt_sb,
6996 LDISKFS_FEATURE_INCOMPAT_DIRDATA))
6997 LDISKFS_SB(osd_sb(o))->s_mount_opt |= LDISKFS_MOUNT_DIRDATA;
6998 else if (!o->od_is_ost)
6999 CWARN("%s: device %s was upgraded from Lustre-1.x without "
7000 "enabling the dirdata feature. If you do not want to "
7001 "downgrade to Lustre-1.x again, you can enable it via "
7002 "'tune2fs -O dirdata device'\n", name, dev);
7004 inode = osd_sb(o)->s_root->d_inode;
7005 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
7006 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
7008 CERROR("%s: failed to set lma on %s root inode\n", name, dev);
7012 if (lmd_flags & LMD_FLG_NOSCRUB)
7023 __free_page(__page);
7028 static struct lu_device *osd_device_fini(const struct lu_env *env,
7029 struct lu_device *d)
7031 struct osd_device *o = osd_dev(d);
7034 osd_shutdown(env, o);
7036 osd_scrub_cleanup(env, o);
7037 osd_obj_map_fini(o);
7043 static int osd_device_init0(const struct lu_env *env,
7044 struct osd_device *o,
7045 struct lustre_cfg *cfg)
7047 struct lu_device *l = osd2lu_dev(o);
7048 struct osd_thread_info *info;
7052 /* if the module was re-loaded, env can loose its keys */
7053 rc = lu_env_refill((struct lu_env *) env);
7056 info = osd_oti_get(env);
7059 l->ld_ops = &osd_lu_ops;
7060 o->od_dt_dev.dd_ops = &osd_dt_ops;
7062 spin_lock_init(&o->od_osfs_lock);
7063 mutex_init(&o->od_otable_mutex);
7064 INIT_LIST_HEAD(&o->od_orphan_list);
7066 o->od_read_cache = 1;
7067 o->od_writethrough_cache = 1;
7068 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
7070 cplen = strlcpy(o->od_svname, lustre_cfg_string(cfg, 4),
7071 sizeof(o->od_svname));
7072 if (cplen >= sizeof(o->od_svname)) {
7077 o->od_index = -1; /* -1 means index is invalid */
7078 rc = server_name2index(o->od_svname, &o->od_index, NULL);
7079 if (rc == LDD_F_SV_TYPE_OST)
7082 o->od_full_scrub_ratio = OFSR_DEFAULT;
7083 o->od_full_scrub_threshold_rate = FULL_SCRUB_THRESHOLD_RATE_DEFAULT;
7084 rc = osd_mount(env, o, cfg);
7088 rc = osd_obj_map_init(env, o);
7092 rc = lu_site_init(&o->od_site, l);
7094 GOTO(out_compat, rc);
7095 o->od_site.ls_bottom_dev = l;
7097 rc = lu_site_init_finish(&o->od_site);
7101 INIT_LIST_HEAD(&o->od_ios_list);
7102 /* setup scrub, including OI files initialization */
7103 rc = osd_scrub_setup(env, o);
7107 rc = osd_procfs_init(o, o->od_svname);
7109 CERROR("%s: can't initialize procfs: rc = %d\n",
7111 GOTO(out_scrub, rc);
7114 LASSERT(l->ld_site->ls_linkage.next != NULL);
7115 LASSERT(l->ld_site->ls_linkage.prev != NULL);
7117 /* initialize quota slave instance */
7118 o->od_quota_slave = qsd_init(env, o->od_svname, &o->od_dt_dev,
7120 if (IS_ERR(o->od_quota_slave)) {
7121 rc = PTR_ERR(o->od_quota_slave);
7122 o->od_quota_slave = NULL;
7123 GOTO(out_procfs, rc);
7131 osd_scrub_cleanup(env, o);
7133 lu_site_fini(&o->od_site);
7135 osd_obj_map_fini(o);
7142 static struct lu_device *osd_device_alloc(const struct lu_env *env,
7143 struct lu_device_type *t,
7144 struct lustre_cfg *cfg)
7146 struct osd_device *o;
7151 return ERR_PTR(-ENOMEM);
7153 rc = dt_device_init(&o->od_dt_dev, t);
7155 /* Because the ctx might be revived in dt_device_init,
7156 * refill the env here */
7157 lu_env_refill((struct lu_env *)env);
7158 rc = osd_device_init0(env, o, cfg);
7160 dt_device_fini(&o->od_dt_dev);
7163 if (unlikely(rc != 0))
7166 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
7169 static struct lu_device *osd_device_free(const struct lu_env *env,
7170 struct lu_device *d)
7172 struct osd_device *o = osd_dev(d);
7175 /* XXX: make osd top device in order to release reference */
7176 d->ld_site->ls_top_dev = d;
7177 lu_site_purge(env, d->ld_site, -1);
7178 if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
7179 LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
7180 lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
7182 lu_site_fini(&o->od_site);
7183 dt_device_fini(&o->od_dt_dev);
7188 static int osd_process_config(const struct lu_env *env,
7189 struct lu_device *d, struct lustre_cfg *cfg)
7191 struct osd_device *o = osd_dev(d);
7195 switch (cfg->lcfg_command) {
7197 rc = osd_mount(env, o, cfg);
7200 lu_dev_del_linkage(d->ld_site, d);
7201 rc = osd_shutdown(env, o);
7204 LASSERT(&o->od_dt_dev);
7205 rc = class_process_proc_param(PARAM_OSD, lprocfs_osd_obd_vars,
7206 cfg, &o->od_dt_dev);
7207 if (rc > 0 || rc == -ENOSYS)
7208 rc = class_process_proc_param(PARAM_OST,
7209 lprocfs_osd_obd_vars,
7210 cfg, &o->od_dt_dev);
7219 static int osd_recovery_complete(const struct lu_env *env,
7220 struct lu_device *d)
7222 struct osd_device *osd = osd_dev(d);
7226 if (osd->od_quota_slave == NULL)
7229 /* start qsd instance on recovery completion, this notifies the quota
7230 * slave code that we are about to process new requests now */
7231 rc = qsd_start(env, osd->od_quota_slave);
7236 * we use exports to track all osd users
7238 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
7239 struct obd_device *obd, struct obd_uuid *cluuid,
7240 struct obd_connect_data *data, void *localdata)
7242 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
7243 struct lustre_handle conn;
7247 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
7249 rc = class_connect(&conn, obd, cluuid);
7253 *exp = class_conn2export(&conn);
7255 spin_lock(&osd->od_osfs_lock);
7257 spin_unlock(&osd->od_osfs_lock);
7263 * once last export (we don't count self-export) disappeared
7264 * osd can be released
7266 static int osd_obd_disconnect(struct obd_export *exp)
7268 struct obd_device *obd = exp->exp_obd;
7269 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
7270 int rc, release = 0;
7273 /* Only disconnect the underlying layers on the final disconnect. */
7274 spin_lock(&osd->od_osfs_lock);
7276 if (osd->od_connects == 0)
7278 spin_unlock(&osd->od_osfs_lock);
7280 rc = class_disconnect(exp); /* bz 9811 */
7282 if (rc == 0 && release)
7283 class_manual_cleanup(obd);
7287 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
7288 struct lu_device *dev)
7290 struct osd_device *osd = osd_dev(dev);
7291 struct lr_server_data *lsd =
7292 &osd->od_dt_dev.dd_lu_dev.ld_site->ls_tgt->lut_lsd;
7296 if (osd->od_quota_slave != NULL) {
7297 /* set up quota slave objects */
7298 result = qsd_prepare(env, osd->od_quota_slave);
7303 if (lsd->lsd_feature_incompat & OBD_COMPAT_OST) {
7304 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
7305 if (lsd->lsd_feature_rocompat & OBD_ROCOMPAT_IDX_IN_IDIF) {
7306 osd->od_index_in_idif = 1;
7308 osd->od_index_in_idif = 0;
7309 result = osd_register_proc_index_in_idif(osd);
7314 osd->od_index_in_idif = 1;
7318 result = osd_fid_init(env, osd);
7323 static int osd_fid_alloc(const struct lu_env *env, struct obd_export *exp,
7324 struct lu_fid *fid, struct md_op_data *op_data)
7326 struct osd_device *osd = osd_dev(exp->exp_obd->obd_lu_dev);
7328 return seq_client_alloc_fid(env, osd->od_cl_seq, fid);
7331 static const struct lu_object_operations osd_lu_obj_ops = {
7332 .loo_object_init = osd_object_init,
7333 .loo_object_delete = osd_object_delete,
7334 .loo_object_release = osd_object_release,
7335 .loo_object_free = osd_object_free,
7336 .loo_object_print = osd_object_print,
7337 .loo_object_invariant = osd_object_invariant
7340 const struct lu_device_operations osd_lu_ops = {
7341 .ldo_object_alloc = osd_object_alloc,
7342 .ldo_process_config = osd_process_config,
7343 .ldo_recovery_complete = osd_recovery_complete,
7344 .ldo_prepare = osd_prepare,
7347 static const struct lu_device_type_operations osd_device_type_ops = {
7348 .ldto_init = osd_type_init,
7349 .ldto_fini = osd_type_fini,
7351 .ldto_start = osd_type_start,
7352 .ldto_stop = osd_type_stop,
7354 .ldto_device_alloc = osd_device_alloc,
7355 .ldto_device_free = osd_device_free,
7357 .ldto_device_init = osd_device_init,
7358 .ldto_device_fini = osd_device_fini
7361 static struct lu_device_type osd_device_type = {
7362 .ldt_tags = LU_DEVICE_DT,
7363 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
7364 .ldt_ops = &osd_device_type_ops,
7365 .ldt_ctx_tags = LCT_LOCAL,
7368 static int osd_health_check(const struct lu_env *env, struct obd_device *obd)
7370 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
7371 struct super_block *sb = osd_sb(osd);
7373 return (osd->od_mnt == NULL || sb->s_flags & MS_RDONLY);
7377 * lprocfs legacy support.
7379 static struct obd_ops osd_obd_device_ops = {
7380 .o_owner = THIS_MODULE,
7381 .o_connect = osd_obd_connect,
7382 .o_disconnect = osd_obd_disconnect,
7383 .o_fid_alloc = osd_fid_alloc,
7384 .o_health_check = osd_health_check,
7387 static int __init osd_init(void)
7391 LASSERT(BH_DXLock < sizeof(((struct buffer_head *)0)->b_state) * 8);
7392 #if !defined(CONFIG_DEBUG_MUTEXES) && !defined(CONFIG_DEBUG_SPINLOCK)
7393 /* please, try to keep osd_thread_info smaller than a page */
7394 CLASSERT(sizeof(struct osd_thread_info) <= PAGE_SIZE);
7399 rc = lu_kmem_init(ldiskfs_caches);
7403 rc = class_register_type(&osd_obd_device_ops, NULL, true,
7404 lprocfs_osd_module_vars,
7405 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
7407 lu_kmem_fini(ldiskfs_caches);
7411 static void __exit osd_exit(void)
7413 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
7414 lu_kmem_fini(ldiskfs_caches);
7417 MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
7418 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
7419 MODULE_VERSION(LUSTRE_VERSION_STRING);
7420 MODULE_LICENSE("GPL");
7422 module_init(osd_init);
7423 module_exit(osd_exit);