4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/osd/osd_handler.c
34 * Top-level entry points into osd module
36 * Author: Nikita Danilov <nikita@clusterfs.com>
37 * Pravin Shelar <pravin.shelar@sun.com> : Added fid in dirent
40 #define DEBUG_SUBSYSTEM S_OSD
42 #include <linux/kallsyms.h>
43 #include <linux/module.h>
44 #include <linux/user_namespace.h>
45 #include <linux/uidgid.h>
47 /* prerequisite for linux/xattr.h */
48 #include <linux/types.h>
49 /* prerequisite for linux/xattr.h */
51 /* XATTR_{REPLACE,CREATE} */
52 #include <linux/xattr.h>
54 #include <ldiskfs/ldiskfs.h>
55 #include <ldiskfs/xattr.h>
56 #include <ldiskfs/ldiskfs_extents.h>
59 * struct OBD_{ALLOC,FREE}*()
62 #include <obd_support.h>
63 /* struct ptlrpc_thread */
64 #include <lustre_net.h>
65 #include <lustre_fid.h>
67 #include <uapi/linux/lustre/lustre_param.h>
69 #include "osd_internal.h"
70 #include "osd_dynlocks.h"
72 /* llo_* api support */
73 #include <md_object.h>
74 #include <lustre_quota.h>
76 #include <lustre_linkea.h>
78 /* Maximum EA size is limited by LNET_MTU for remote objects */
79 #define OSD_MAX_EA_SIZE 1048364
82 module_param(ldiskfs_pdo, int, 0644);
83 MODULE_PARM_DESC(ldiskfs_pdo, "ldiskfs with parallel directory operations");
85 int ldiskfs_track_declares_assert;
86 module_param(ldiskfs_track_declares_assert, int, 0644);
87 MODULE_PARM_DESC(ldiskfs_track_declares_assert, "LBUG during tracking of declares");
89 /* Slab to allocate dynlocks */
90 struct kmem_cache *dynlock_cachep;
92 /* Slab to allocate osd_it_ea */
93 struct kmem_cache *osd_itea_cachep;
95 static struct lu_kmem_descr ldiskfs_caches[] = {
97 .ckd_cache = &dynlock_cachep,
98 .ckd_name = "dynlock_cache",
99 .ckd_size = sizeof(struct dynlock_handle)
102 .ckd_cache = &osd_itea_cachep,
103 .ckd_name = "osd_itea_cache",
104 .ckd_size = sizeof(struct osd_it_ea)
111 static const char dot[] = ".";
112 static const char dotdot[] = "..";
114 static const struct lu_object_operations osd_lu_obj_ops;
115 static const struct dt_object_operations osd_obj_ops;
116 static const struct dt_object_operations osd_obj_otable_it_ops;
117 static const struct dt_index_operations osd_index_iam_ops;
118 static const struct dt_index_operations osd_index_ea_ops;
120 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
121 const struct lu_fid *fid);
122 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
123 struct osd_device *osd);
125 int osd_trans_declare_op2rb[] = {
126 [OSD_OT_ATTR_SET] = OSD_OT_ATTR_SET,
127 [OSD_OT_PUNCH] = OSD_OT_MAX,
128 [OSD_OT_XATTR_SET] = OSD_OT_XATTR_SET,
129 [OSD_OT_CREATE] = OSD_OT_DESTROY,
130 [OSD_OT_DESTROY] = OSD_OT_CREATE,
131 [OSD_OT_REF_ADD] = OSD_OT_REF_DEL,
132 [OSD_OT_REF_DEL] = OSD_OT_REF_ADD,
133 [OSD_OT_WRITE] = OSD_OT_WRITE,
134 [OSD_OT_INSERT] = OSD_OT_DELETE,
135 [OSD_OT_DELETE] = OSD_OT_INSERT,
136 [OSD_OT_QUOTA] = OSD_OT_MAX,
139 static int osd_has_index(const struct osd_object *obj)
141 return obj->oo_dt.do_index_ops != NULL;
144 static int osd_object_invariant(const struct lu_object *l)
146 return osd_invariant(osd_obj(l));
150 * Concurrency: doesn't matter
152 static int osd_is_write_locked(const struct lu_env *env, struct osd_object *o)
154 struct osd_thread_info *oti = osd_oti_get(env);
156 return oti->oti_w_locks > 0 && o->oo_owner == env;
160 * Concurrency: doesn't access mutable data
162 static int osd_root_get(const struct lu_env *env,
163 struct dt_device *dev, struct lu_fid *f)
165 lu_local_obj_fid(f, OSD_FS_ROOT_OID);
170 * the following set of functions are used to maintain per-thread
171 * cache of FID->ino mapping. this mechanism is needed to resolve
172 * FID to inode at dt_insert() which in turn stores ino in the
173 * directory entries to keep ldiskfs compatible with ext[34].
174 * due to locking-originated restrictions we can't lookup ino
175 * using LU cache (deadlock is possible). lookup using OI is quite
176 * expensive. so instead we maintain this cache and methods like
177 * dt_create() fill it. so in the majority of cases dt_insert() is
178 * able to find needed mapping in lockless manner.
180 static struct osd_idmap_cache *
181 osd_idc_find(const struct lu_env *env, struct osd_device *osd,
182 const struct lu_fid *fid)
184 struct osd_thread_info *oti = osd_oti_get(env);
185 struct osd_idmap_cache *idc = oti->oti_ins_cache;
188 for (i = 0; i < oti->oti_ins_cache_used; i++) {
189 if (!lu_fid_eq(&idc[i].oic_fid, fid))
191 if (idc[i].oic_dev != osd)
200 static struct osd_idmap_cache *
201 osd_idc_add(const struct lu_env *env, struct osd_device *osd,
202 const struct lu_fid *fid)
204 struct osd_thread_info *oti = osd_oti_get(env);
205 struct osd_idmap_cache *idc;
208 if (unlikely(oti->oti_ins_cache_used >= oti->oti_ins_cache_size)) {
209 i = oti->oti_ins_cache_size * 2;
211 i = OSD_INS_CACHE_SIZE;
212 OBD_ALLOC(idc, sizeof(*idc) * i);
214 return ERR_PTR(-ENOMEM);
215 if (oti->oti_ins_cache != NULL) {
216 memcpy(idc, oti->oti_ins_cache,
217 oti->oti_ins_cache_used * sizeof(*idc));
218 OBD_FREE(oti->oti_ins_cache,
219 oti->oti_ins_cache_used * sizeof(*idc));
221 oti->oti_ins_cache = idc;
222 oti->oti_ins_cache_size = i;
225 idc = oti->oti_ins_cache + oti->oti_ins_cache_used++;
228 idc->oic_lid.oii_ino = 0;
229 idc->oic_lid.oii_gen = 0;
236 * lookup mapping for the given fid in the cache, initialize a
237 * new one if not found. the initialization checks whether the
238 * object is local or remote. for local objects, OI is used to
239 * learn ino/generation. the function is used when the caller
240 * has no information about the object, e.g. at dt_insert().
242 static struct osd_idmap_cache *
243 osd_idc_find_or_init(const struct lu_env *env, struct osd_device *osd,
244 const struct lu_fid *fid)
246 struct osd_idmap_cache *idc;
249 idc = osd_idc_find(env, osd, fid);
250 LASSERT(!IS_ERR(idc));
254 CDEBUG(D_INODE, "%s: FID "DFID" not in the id map cache\n",
255 osd->od_svname, PFID(fid));
257 /* new mapping is needed */
258 idc = osd_idc_add(env, osd, fid);
260 CERROR("%s: FID "DFID" add id map cache failed: %ld\n",
261 osd->od_svname, PFID(fid), PTR_ERR(idc));
266 rc = osd_remote_fid(env, osd, fid);
267 if (unlikely(rc < 0))
271 /* the object is local, lookup in OI */
272 /* XXX: probably cheaper to lookup in LU first? */
273 rc = osd_oi_lookup(osd_oti_get(env), osd, fid,
275 if (unlikely(rc < 0)) {
276 CERROR("can't lookup: rc = %d\n", rc);
280 /* the object is remote */
288 * lookup mapping for given FID and fill it from the given object.
289 * the object is lolcal by definition.
291 static int osd_idc_find_and_init(const struct lu_env *env,
292 struct osd_device *osd,
293 struct osd_object *obj)
295 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
296 struct osd_idmap_cache *idc;
298 idc = osd_idc_find(env, osd, fid);
299 LASSERT(!IS_ERR(idc));
301 if (obj->oo_inode == NULL)
303 if (idc->oic_lid.oii_ino != obj->oo_inode->i_ino) {
304 LASSERT(idc->oic_lid.oii_ino == 0);
305 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
306 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
311 CDEBUG(D_INODE, "%s: FID "DFID" not in the id map cache\n",
312 osd->od_svname, PFID(fid));
314 /* new mapping is needed */
315 idc = osd_idc_add(env, osd, fid);
317 CERROR("%s: FID "DFID" add id map cache failed: %ld\n",
318 osd->od_svname, PFID(fid), PTR_ERR(idc));
322 if (obj->oo_inode != NULL) {
323 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
324 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
330 * OSD object methods.
334 * Concurrency: no concurrent access is possible that early in object
337 static struct lu_object *osd_object_alloc(const struct lu_env *env,
338 const struct lu_object_header *hdr,
341 struct osd_object *mo;
346 struct lu_object_header *h;
347 struct osd_device *o = osd_dev(d);
349 l = &mo->oo_dt.do_lu;
350 if (unlikely(o->od_in_init)) {
357 lu_object_header_init(h);
358 lu_object_init(l, h, d);
359 lu_object_add_top(h, l);
362 dt_object_init(&mo->oo_dt, NULL, d);
363 mo->oo_header = NULL;
366 mo->oo_dt.do_ops = &osd_obj_ops;
367 l->lo_ops = &osd_lu_obj_ops;
368 init_rwsem(&mo->oo_sem);
369 init_rwsem(&mo->oo_ext_idx_sem);
370 spin_lock_init(&mo->oo_guard);
371 INIT_LIST_HEAD(&mo->oo_xattr_list);
377 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
378 struct dentry *dentry, struct lustre_ost_attrs *loa)
382 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
383 (void *)loa, sizeof(*loa));
385 struct lustre_mdt_attrs *lma = &loa->loa_lma;
387 if (rc < sizeof(*lma))
391 lustre_loa_swab(loa, true);
392 /* Check LMA compatibility */
393 if (lma->lma_incompat & ~LMA_INCOMPAT_SUPP) {
394 CWARN("%s: unsupported incompat LMA feature(s) %#x "
395 "for fid = "DFID", ino = %lu\n",
397 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
398 PFID(&lma->lma_self_fid), inode->i_ino);
401 } else if (rc == 0) {
409 * retrieve object from backend ext fs.
411 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
412 struct osd_inode_id *id)
415 struct inode *inode = NULL;
418 * if we look for an inode withing a running
419 * transaction, then we risk to deadlock
420 * osd_dirent_check_repair() breaks this
422 /* LASSERT(current->journal_info == NULL); */
424 inode = osd_ldiskfs_iget(osd_sb(dev), id->oii_ino);
426 CDEBUG(D_INODE, "no inode: ino = %u, rc = %ld\n",
427 id->oii_ino, PTR_ERR(inode));
428 } else if (id->oii_gen != OSD_OII_NOGEN &&
429 inode->i_generation != id->oii_gen) {
430 CDEBUG(D_INODE, "unmatched inode: ino = %u, oii_gen = %u, "
431 "i_generation = %u\n",
432 id->oii_ino, id->oii_gen, inode->i_generation);
434 inode = ERR_PTR(-ESTALE);
435 } else if (inode->i_nlink == 0) {
437 * due to parallel readdir and unlink,
438 * we can have dead inode here.
440 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
442 inode = ERR_PTR(-ESTALE);
443 } else if (is_bad_inode(inode)) {
444 CWARN("%s: bad inode: ino = %u\n",
445 osd_dev2name(dev), id->oii_ino);
447 inode = ERR_PTR(-ENOENT);
448 } else if ((rc = osd_attach_jinode(inode))) {
452 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
453 if (id->oii_gen == OSD_OII_NOGEN)
454 osd_id_gen(id, inode->i_ino, inode->i_generation);
457 * Do not update file c/mtime in ldiskfs.
458 * NB: we don't have any lock to protect this because we don't
459 * have reference on osd_object now, but contention with
460 * another lookup + attr_set can't happen in the tiny window
461 * between if (...) and set S_NOCMTIME.
463 if (!(inode->i_flags & S_NOCMTIME))
464 inode->i_flags |= S_NOCMTIME;
469 int osd_ldiskfs_add_entry(struct osd_thread_info *info, struct osd_device *osd,
470 handle_t *handle, struct dentry *child,
471 struct inode *inode, struct htree_lock *hlock)
475 rc = __ldiskfs_add_entry(handle, child, inode, hlock);
476 if (rc == -ENOBUFS || rc == -ENOSPC) {
477 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
478 struct inode *parent = child->d_parent->d_inode;
479 struct lu_fid *fid = NULL;
481 rc2 = osd_get_lma(info, parent, child->d_parent, loa);
483 fid = &loa->loa_lma.lma_self_fid;
484 } else if (rc2 == -ENODATA) {
485 if (unlikely(parent == inode->i_sb->s_root->d_inode)) {
486 fid = &info->oti_fid3;
487 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
488 } else if (!osd->od_is_ost && osd->od_index == 0) {
489 fid = &info->oti_fid3;
490 lu_igif_build(fid, parent->i_ino,
491 parent->i_generation);
496 /* below message is checked in sanity.sh test_129 */
497 CWARN("%s: directory (inode: %lu, FID: "DFID") %s maximum entry limit\n",
498 osd_name(osd), parent->i_ino, PFID(fid),
499 rc == -ENOSPC ? "has reached" : "is approaching");
501 /* below message is checked in sanity.sh test_129 */
502 CWARN("%s: directory (inode: %lu, FID: unknown) %s maximum entry limit\n",
503 osd_name(osd), parent->i_ino,
504 rc == -ENOSPC ? "has reached" : "is approaching");
506 /* ignore such error now */
516 osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
517 struct osd_inode_id *id, struct lu_fid *fid)
519 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
523 inode = osd_iget(info, dev, id);
527 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
529 *fid = loa->loa_lma.lma_self_fid;
530 } else if (rc == -ENODATA) {
531 if (unlikely(inode == osd_sb(dev)->s_root->d_inode))
532 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
534 lu_igif_build(fid, inode->i_ino, inode->i_generation);
542 static struct inode *osd_iget_check(struct osd_thread_info *info,
543 struct osd_device *dev,
544 const struct lu_fid *fid,
545 struct osd_inode_id *id,
554 * The cached OI mapping is trustable. If we cannot locate the inode
555 * via the cached OI mapping, then return the failure to the caller
556 * directly without further OI checking.
560 inode = osd_ldiskfs_iget(osd_sb(dev), id->oii_ino);
563 if (!trusted && (rc == -ENOENT || rc == -ESTALE))
566 CDEBUG(D_INODE, "no inode for FID: "DFID", ino = %u, rc = %d\n",
567 PFID(fid), id->oii_ino, rc);
571 if (is_bad_inode(inode)) {
576 CDEBUG(D_INODE, "bad inode for FID: "DFID", ino = %u\n",
577 PFID(fid), id->oii_ino);
581 if (id->oii_gen != OSD_OII_NOGEN &&
582 inode->i_generation != id->oii_gen) {
587 CDEBUG(D_INODE, "unmatched inode for FID: "DFID", ino = %u, "
588 "oii_gen = %u, i_generation = %u\n", PFID(fid),
589 id->oii_ino, id->oii_gen, inode->i_generation);
593 if (inode->i_nlink == 0) {
598 CDEBUG(D_INODE, "stale inode for FID: "DFID", ino = %u\n",
599 PFID(fid), id->oii_ino);
603 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
607 __u32 saved_ino = id->oii_ino;
608 __u32 saved_gen = id->oii_gen;
611 LASSERTF(rc == -ESTALE || rc == -ENOENT, "rc = %d\n", rc);
613 rc = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
615 * XXX: There are four possible cases:
617 * Backup/restore caused the OI invalid.
619 * Someone unlinked the object but NOT removed
620 * the OI mapping, such as mount target device
621 * as ldiskfs, and modify something directly.
623 * Someone just removed the object between the
624 * former oi_lookup and the iget. It is normal.
625 * 4. Other failure cases.
627 * Generally, when the device is mounted, it will
628 * auto check whether the system is restored from
629 * file-level backup or not. We trust such detect
630 * to distinguish the 1st case from the 2nd case:
631 * if the OI files are consistent but may contain
632 * stale OI mappings because of case 2, if iget()
633 * returns -ENOENT or -ESTALE, then it should be
638 * If the OI mapping was in OI file before the
639 * osd_iget_check(), but now, it is disappear,
640 * then it must be removed by race. That is a
646 * It is the OI scrub updated the OI mapping by race.
647 * The new OI mapping must be valid.
649 if (saved_ino != id->oii_ino ||
650 (saved_gen != id->oii_gen && saved_gen != OSD_OII_NOGEN)) {
659 if (dev->od_scrub.os_scrub.os_file.sf_flags &
662 * It still can be the case 2, but we cannot
663 * distinguish it from the case 1. So return
664 * -EREMCHG to block current operation until
665 * OI scrub rebuilt the OI mappings.
674 if (inode->i_generation == id->oii_gen)
679 if (id->oii_gen == OSD_OII_NOGEN)
680 osd_id_gen(id, inode->i_ino, inode->i_generation);
683 * Do not update file c/mtime in ldiskfs.
684 * NB: we don't have any lock to protect this because we don't
685 * have reference on osd_object now, but contention with
686 * another lookup + attr_set can't happen in the tiny window
687 * between if (...) and set S_NOCMTIME.
689 if (!(inode->i_flags & S_NOCMTIME))
690 inode->i_flags |= S_NOCMTIME;
707 * \retval +v: new filter_fid does not contain self-fid
708 * \retval 0: filter_fid_18_23, contains self-fid
709 * \retval -v: other failure cases
711 int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
712 struct dentry *dentry, struct lu_fid *fid)
714 struct filter_fid *ff = &info->oti_ff;
715 struct ost_id *ostid = &info->oti_ostid;
718 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
719 if (rc == sizeof(struct filter_fid_18_23)) {
720 struct filter_fid_18_23 *ff_old = (void *)ff;
722 ostid_set_seq(ostid, le64_to_cpu(ff_old->ff_seq));
723 rc = ostid_set_id(ostid, le64_to_cpu(ff_old->ff_objid));
725 * XXX: use 0 as the index for compatibility, the caller will
726 * handle index related issues when necessary.
729 ostid_to_fid(fid, ostid, 0);
730 } else if (rc >= (int)sizeof(struct filter_fid_24_29)) {
732 } else if (rc >= 0) {
739 static int osd_lma_self_repair(struct osd_thread_info *info,
740 struct osd_device *osd, struct inode *inode,
741 const struct lu_fid *fid, __u32 compat)
746 LASSERT(current->journal_info == NULL);
748 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC,
749 osd_dto_credits_noquota[DTO_XATTR_SET]);
752 CWARN("%s: cannot start journal for lma_self_repair: rc = %d\n",
757 rc = osd_ea_fid_set(info, inode, fid, compat, 0);
759 CWARN("%s: cannot self repair the LMA: rc = %d\n",
761 ldiskfs_journal_stop(jh);
765 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
767 struct osd_thread_info *info = osd_oti_get(env);
768 struct osd_device *osd = osd_obj2dev(obj);
769 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
770 struct lustre_mdt_attrs *lma = &loa->loa_lma;
771 struct inode *inode = obj->oo_inode;
772 struct dentry *dentry = &info->oti_obj_dentry;
773 struct lu_fid *fid = NULL;
774 const struct lu_fid *rfid = lu_object_fid(&obj->oo_dt.do_lu);
779 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
780 (void *)loa, sizeof(*loa));
781 if (rc == -ENODATA && !fid_is_igif(rfid) && osd->od_check_ff) {
782 fid = &lma->lma_self_fid;
783 rc = osd_get_idif(info, inode, dentry, fid);
784 if (rc > 0 || (rc == -ENODATA && osd->od_index_in_idif)) {
786 * For the given OST-object, if it has neither LMA nor
787 * FID in XATTR_NAME_FID, then the given FID (which is
788 * contained in the @obj, from client RPC for locating
789 * the OST-object) is trusted. We use it to generate
792 osd_lma_self_repair(info, osd, inode, rfid,
803 lustre_lma_swab(lma);
804 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
805 (CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT) &&
806 S_ISREG(inode->i_mode)))) {
807 CWARN("%s: unsupported incompat LMA feature(s) %#x for "
808 "fid = "DFID", ino = %lu\n", osd_name(osd),
809 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
810 PFID(rfid), inode->i_ino);
813 fid = &lma->lma_self_fid;
814 if (lma->lma_compat & LMAC_STRIPE_INFO &&
816 obj->oo_pfid_in_lma = 1;
817 if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
819 lu_object_set_agent_entry(&obj->oo_dt.do_lu);
823 if (fid != NULL && unlikely(!lu_fid_eq(rfid, fid))) {
824 if (fid_is_idif(rfid) && fid_is_idif(fid)) {
825 struct ost_id *oi = &info->oti_ostid;
826 struct lu_fid *fid1 = &info->oti_fid3;
827 __u32 idx = fid_idif_ost_idx(rfid);
830 * For old IDIF, the OST index is not part of the IDIF,
831 * Means that different OSTs may have the same IDIFs.
832 * Under such case, we need to make some compatible
833 * check to make sure to trigger OI scrub properly.
835 if (idx != 0 && fid_idif_ost_idx(fid) == 0) {
836 /* Given @rfid is new, LMA is old. */
837 fid_to_ostid(fid, oi);
838 ostid_to_fid(fid1, oi, idx);
839 if (lu_fid_eq(fid1, rfid)) {
840 if (osd->od_index_in_idif)
841 osd_lma_self_repair(info, osd,
855 struct osd_check_lmv_buf {
856 /* please keep it as first member */
857 struct dir_context ctx;
858 struct osd_thread_info *oclb_info;
859 struct osd_device *oclb_dev;
860 struct osd_idmap_cache *oclb_oic;
866 * It is called internally by ->iterate*() to filter out the
867 * local slave object's FID of the striped directory.
869 * \retval 1 found the local slave's FID
870 * \retval 0 continue to check next item
871 * \retval -ve for failure
873 #ifdef HAVE_FILLDIR_USE_CTX
874 static int osd_stripe_dir_filldir(struct dir_context *buf,
876 static int osd_stripe_dir_filldir(void *buf,
878 const char *name, int namelen,
879 loff_t offset, __u64 ino, unsigned int d_type)
881 struct osd_check_lmv_buf *oclb = (struct osd_check_lmv_buf *)buf;
882 struct osd_thread_info *oti = oclb->oclb_info;
883 struct lu_fid *fid = &oti->oti_fid3;
884 struct osd_inode_id *id = &oti->oti_id3;
885 struct osd_device *dev = oclb->oclb_dev;
886 struct osd_idmap_cache *oic = oclb->oclb_oic;
895 sscanf(name + 1, SFID, RFID(fid));
896 if (!fid_is_sane(fid))
899 if (osd_remote_fid(oti->oti_env, dev, fid))
902 osd_id_gen(id, ino, OSD_OII_NOGEN);
903 inode = osd_iget(oti, dev, id);
905 return PTR_ERR(inode);
908 osd_add_oi_cache(oti, dev, id, fid);
912 osd_oii_insert(dev, oic, true);
913 oclb->oclb_found = true;
919 * When lookup item under striped directory, we need to locate the master
920 * MDT-object of the striped directory firstly, then the client will send
921 * lookup (getattr_by_name) RPC to the MDT with some slave MDT-object's FID
922 * and the item's name. If the system is restored from MDT file level backup,
923 * then before the OI scrub completely built the OI files, the OI mappings of
924 * the master MDT-object and slave MDT-object may be invalid. Usually, it is
925 * not a problem for the master MDT-object. Because when locate the master
926 * MDT-object, we will do name based lookup (for the striped directory itself)
927 * firstly, during such process we can setup the correct OI mapping for the
928 * master MDT-object. But it will be trouble for the slave MDT-object. Because
929 * the client will not trigger name based lookup on the MDT to locate the slave
930 * MDT-object before locating item under the striped directory, then when
931 * osd_fid_lookup(), it will find that the OI mapping for the slave MDT-object
932 * is invalid and does not know what the right OI mapping is, then the MDT has
933 * to return -EINPROGRESS to the client to notify that the OI scrub is rebuiding
934 * the OI file, related OI mapping is unknown yet, please try again later. And
935 * then client will re-try the RPC again and again until related OI mapping has
936 * been updated. That is quite inefficient.
938 * To resolve above trouble, we will handle it as the following two cases:
940 * 1) The slave MDT-object and the master MDT-object are on different MDTs.
941 * It is relative easy. Be as one of remote MDT-objects, the slave MDT-object
942 * is linked under /REMOTE_PARENT_DIR with the name of its FID string.
943 * We can locate the slave MDT-object via lookup the /REMOTE_PARENT_DIR
944 * directly. Please check osd_fid_lookup().
946 * 2) The slave MDT-object and the master MDT-object reside on the same MDT.
947 * Under such case, during lookup the master MDT-object, we will lookup the
948 * slave MDT-object via readdir against the master MDT-object, because the
949 * slave MDT-objects information are stored as sub-directories with the name
950 * "${FID}:${index}". Then when find the local slave MDT-object, its OI
951 * mapping will be recorded. Then subsequent osd_fid_lookup() will know
952 * the correct OI mapping for the slave MDT-object.
954 static int osd_check_lmv(struct osd_thread_info *oti, struct osd_device *dev,
955 struct inode *inode, struct osd_idmap_cache *oic)
957 struct lu_buf *buf = &oti->oti_big_buf;
958 struct dentry *dentry = &oti->oti_obj_dentry;
959 struct file *filp = &oti->oti_file;
960 const struct file_operations *fops;
961 struct lmv_mds_md_v1 *lmv1;
962 struct osd_check_lmv_buf oclb = {
963 .ctx.actor = osd_stripe_dir_filldir,
974 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, buf->lb_buf,
977 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, NULL, 0);
979 lu_buf_realloc(buf, rc);
980 if (buf->lb_buf == NULL)
981 GOTO(out, rc = -ENOMEM);
987 if (unlikely(rc == 0 || rc == -ENODATA))
993 if (unlikely(buf->lb_buf == NULL)) {
994 lu_buf_realloc(buf, rc);
995 if (buf->lb_buf == NULL)
996 GOTO(out, rc = -ENOMEM);
1002 if (le32_to_cpu(lmv1->lmv_magic) != LMV_MAGIC_V1)
1005 fops = inode->i_fop;
1006 dentry->d_inode = inode;
1007 dentry->d_sb = inode->i_sb;
1009 filp->f_path.dentry = dentry;
1010 filp->f_flags |= O_NOATIME;
1011 filp->f_mode = FMODE_64BITHASH | FMODE_NONOTIFY;
1012 filp->f_mapping = inode->i_mapping;
1014 filp->private_data = NULL;
1015 set_file_inode(filp, inode);
1016 rc = osd_security_file_alloc(filp);
1021 oclb.oclb_items = 0;
1022 rc = iterate_dir(filp, &oclb.ctx);
1023 } while (rc >= 0 && oclb.oclb_items > 0 && !oclb.oclb_found &&
1024 filp->f_pos != LDISKFS_HTREE_EOF_64BIT);
1025 fops->release(inode, filp);
1029 CDEBUG(D_LFSCK, "%s: fail to check LMV EA, inode = %lu/%u,"
1030 DFID": rc = %d\n", osd_ino2name(inode),
1031 inode->i_ino, inode->i_generation,
1032 PFID(&oic->oic_fid), rc);
1039 static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
1040 const struct lu_fid *fid,
1041 const struct lu_object_conf *conf)
1043 struct osd_thread_info *info;
1044 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
1045 struct osd_device *dev;
1046 struct osd_idmap_cache *oic;
1047 struct osd_inode_id *id;
1048 struct inode *inode = NULL;
1049 struct lustre_scrub *scrub;
1050 struct scrub_file *sf;
1051 __u32 flags = SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT | SS_AUTO_FULL;
1056 bool remote = false;
1057 bool trusted = true;
1058 bool updated = false;
1059 bool checked = false;
1063 LINVRNT(osd_invariant(obj));
1064 LASSERT(obj->oo_inode == NULL);
1065 LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID"\n", PFID(fid));
1067 dev = osd_dev(ldev);
1068 scrub = &dev->od_scrub.os_scrub;
1069 sf = &scrub->os_file;
1070 info = osd_oti_get(env);
1072 oic = &info->oti_cache;
1074 if (OBD_FAIL_CHECK(OBD_FAIL_SRV_ENOENT))
1078 * For the object is created as locking anchor, or for the object to
1079 * be created on disk. No need to osd_oi_lookup() at here because FID
1080 * shouldn't never be re-used, if it's really a duplicate FID from
1081 * unexpected reason, we should be able to detect it later by calling
1082 * do_create->osd_oi_insert().
1084 if (conf && conf->loc_flags & LOC_F_NEW)
1085 GOTO(out, result = 0);
1087 /* Search order: 1. per-thread cache. */
1088 if (lu_fid_eq(fid, &oic->oic_fid) && likely(oic->oic_dev == dev)) {
1094 if (!list_empty(&scrub->os_inconsistent_items)) {
1095 /* Search order: 2. OI scrub pending list. */
1096 result = osd_oii_lookup(dev, fid, id);
1102 * The OI mapping in the OI file can be updated by the OI scrub
1103 * when we locate the inode via FID. So it may be not trustable.
1107 /* Search order: 3. OI files. */
1108 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1109 if (result == -ENOENT) {
1110 if (!(fid_is_norm(fid) || fid_is_igif(fid)) ||
1111 fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) ||
1112 !ldiskfs_test_bit(osd_oi_fid2idx(dev, fid),
1114 GOTO(out, result = 0);
1119 /* -ESTALE is returned if inode of OST object doesn't exist */
1120 if (result == -ESTALE &&
1121 fid_is_on_ost(info, dev, fid, OI_CHECK_FLD)) {
1122 GOTO(out, result = 0);
1129 obj->oo_inode = NULL;
1130 /* for later passes through checks, not true on first pass */
1131 if (!IS_ERR_OR_NULL(inode))
1134 inode = osd_iget_check(info, dev, fid, id, trusted);
1135 if (!IS_ERR(inode)) {
1136 obj->oo_inode = inode;
1144 result = PTR_ERR(inode);
1145 if (result == -ENOENT || result == -ESTALE)
1146 GOTO(out, result = 0);
1148 if (result != -EREMCHG)
1153 * We still have chance to get the valid inode: for the
1154 * object which is referenced by remote name entry, the
1155 * object on the local MDT will be linked under the dir
1156 * of "/REMOTE_PARENT_DIR" with its FID string as name.
1158 * We do not know whether the object for the given FID
1159 * is referenced by some remote name entry or not, and
1160 * especially for DNE II, a multiple-linked object may
1161 * have many name entries reside on many MDTs.
1163 * To simplify the operation, OSD will not distinguish
1164 * more, just lookup "/REMOTE_PARENT_DIR". Usually, it
1165 * only happened for the RPC from other MDT during the
1166 * OI scrub, or for the client side RPC with FID only,
1167 * such as FID to path, or from old connected client.
1170 rc1 = osd_lookup_in_remote_parent(info, dev, fid, id);
1174 flags |= SS_AUTO_PARTIAL;
1175 flags &= ~SS_AUTO_FULL;
1180 if (thread_is_running(&scrub->os_thread)) {
1181 if (scrub->os_partial_scan && !scrub->os_in_join)
1184 if (IS_ERR_OR_NULL(inode) || result)
1185 GOTO(out, result = -EINPROGRESS);
1188 LASSERT(obj->oo_inode == inode);
1190 osd_add_oi_cache(info, dev, id, fid);
1191 osd_oii_insert(dev, oic, true);
1195 if (dev->od_auto_scrub_interval == AS_NEVER) {
1197 GOTO(out, result = -EREMCHG);
1200 LASSERT(obj->oo_inode == inode);
1202 osd_add_oi_cache(info, dev, id, fid);
1207 rc1 = osd_scrub_start(env, dev, flags);
1208 LCONSOLE_WARN("%s: trigger OI scrub by RPC for the " DFID" with flags "
1209 "0x%x, rc = %d\n", osd_name(dev), PFID(fid), flags, rc1);
1210 if (rc1 && rc1 != -EALREADY)
1211 GOTO(out, result = -EREMCHG);
1213 if (IS_ERR_OR_NULL(inode) || result)
1214 GOTO(out, result = -EINPROGRESS);
1217 LASSERT(obj->oo_inode == inode);
1219 osd_add_oi_cache(info, dev, id, fid);
1220 osd_oii_insert(dev, oic, true);
1225 if (unlikely(obj->oo_header))
1228 result = osd_check_lma(env, obj);
1232 LASSERTF(id->oii_ino == inode->i_ino &&
1233 id->oii_gen == inode->i_generation,
1234 "locate wrong inode for FID: "DFID", %u/%u => %ld/%u\n",
1235 PFID(fid), id->oii_ino, id->oii_gen,
1236 inode->i_ino, inode->i_generation);
1238 saved_ino = inode->i_ino;
1239 saved_gen = inode->i_generation;
1241 if (unlikely(result == -ENODATA)) {
1243 * If the OI scrub updated the OI mapping by race, it
1244 * must be valid. Trust the inode that has no LMA EA.
1249 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1252 * The OI mapping is still there, the inode is still
1253 * valid. It is just becaues the inode has no LMA EA.
1255 if (saved_ino == id->oii_ino &&
1256 saved_gen == id->oii_gen)
1260 * It is the OI scrub updated the OI mapping by race.
1261 * The new OI mapping must be valid.
1269 * "result == -ENOENT" means that the OI mappinghas been
1270 * removed by race, so the inode belongs to other object.
1272 * Others error can be returned directly.
1274 if (result == -ENOENT) {
1277 obj->oo_inode = NULL;
1282 if (result != -EREMCHG)
1288 * if two OST objects map to the same inode, and inode mode is
1289 * (S_IFREG | S_ISUID | S_ISGID | S_ISVTX | 0666), which means it's
1290 * reserved by precreate, and not written yet, in this case, don't
1291 * set inode for the object whose FID mismatch, so that it can create
1292 * inode and not block precreate.
1294 if (fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) &&
1295 inode->i_mode == (S_IFREG | S_ISUID | S_ISGID | S_ISVTX | 0666)) {
1296 obj->oo_inode = NULL;
1297 GOTO(out, result = 0);
1300 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1302 * "result == -ENOENT" means the cached OI mapping has been removed
1303 * from the OI file by race, above inode belongs to other object.
1305 if (result == -ENOENT) {
1308 obj->oo_inode = NULL;
1309 GOTO(out, result = 0);
1315 if (saved_ino == id->oii_ino && saved_gen == id->oii_gen) {
1321 * It is the OI scrub updated the OI mapping by race.
1322 * The new OI mapping must be valid.
1330 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
1331 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
1333 result = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
1335 if (lma->lma_compat & LMAC_STRIPE_INFO &&
1337 obj->oo_pfid_in_lma = 1;
1338 if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
1340 lu_object_set_agent_entry(&obj->oo_dt.do_lu);
1341 } else if (result != -ENODATA) {
1346 obj->oo_compat_dot_created = 1;
1347 obj->oo_compat_dotdot_created = 1;
1349 if (S_ISDIR(inode->i_mode) &&
1350 (flags & SS_AUTO_PARTIAL || sf->sf_status == SS_SCANNING))
1351 osd_check_lmv(info, dev, inode, oic);
1353 result = osd_attach_jinode(inode);
1358 GOTO(out, result = 0);
1360 LASSERT(!obj->oo_hl_head);
1361 obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
1363 GOTO(out, result = (!obj->oo_hl_head ? -ENOMEM : 0));
1366 if (result || !obj->oo_inode) {
1367 if (!IS_ERR_OR_NULL(inode))
1370 obj->oo_inode = NULL;
1372 fid_zero(&oic->oic_fid);
1375 LINVRNT(osd_invariant(obj));
1380 * Concurrency: shouldn't matter.
1382 static void osd_object_init0(struct osd_object *obj)
1384 LASSERT(obj->oo_inode != NULL);
1385 obj->oo_dt.do_body_ops = &osd_body_ops;
1386 obj->oo_dt.do_lu.lo_header->loh_attr |=
1387 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
1391 * Concurrency: no concurrent access is possible that early in object
1394 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
1395 const struct lu_object_conf *conf)
1397 struct osd_object *obj = osd_obj(l);
1400 LINVRNT(osd_invariant(obj));
1402 if (fid_is_otable_it(&l->lo_header->loh_fid)) {
1403 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
1404 l->lo_header->loh_attr |= LOHA_EXISTS;
1408 result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
1409 obj->oo_dt.do_body_ops = &osd_body_ops_new;
1410 if (result == 0 && obj->oo_inode != NULL) {
1411 struct osd_thread_info *oti = osd_oti_get(env);
1412 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
1414 osd_object_init0(obj);
1415 if (unlikely(obj->oo_header))
1418 result = osd_get_lma(oti, obj->oo_inode,
1419 &oti->oti_obj_dentry, loa);
1422 * Convert LMAI flags to lustre LMA flags
1423 * and cache it to oo_lma_flags
1426 lma_to_lustre_flags(loa->loa_lma.lma_incompat);
1427 } else if (result == -ENODATA) {
1432 LINVRNT(osd_invariant(obj));
1437 * The first part of oxe_buf is xattr name, and is '\0' terminated.
1438 * The left part is for value, binary mode.
1440 struct osd_xattr_entry {
1441 struct list_head oxe_list;
1445 struct rcu_head oxe_rcu;
1449 static int osd_oxc_get(struct osd_object *obj, const char *name,
1452 struct osd_xattr_entry *tmp;
1453 struct osd_xattr_entry *oxe = NULL;
1454 size_t namelen = strlen(name);
1460 list_for_each_entry_rcu(tmp, &obj->oo_xattr_list, oxe_list) {
1461 if (namelen == tmp->oxe_namelen &&
1462 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1469 GOTO(out, rc = -ENOENT);
1471 if (!oxe->oxe_exist)
1472 GOTO(out, rc = -ENODATA);
1475 rc = oxe->oxe_len - sizeof(*oxe) - oxe->oxe_namelen - 1;
1478 if (buf->lb_buf == NULL)
1481 if (buf->lb_len < rc)
1482 GOTO(out, rc = -ERANGE);
1484 memcpy(buf->lb_buf, &oxe->oxe_buf[namelen + 1], rc);
1492 static void osd_oxc_free(struct rcu_head *head)
1494 struct osd_xattr_entry *oxe;
1496 oxe = container_of(head, struct osd_xattr_entry, oxe_rcu);
1497 OBD_FREE(oxe, oxe->oxe_len);
1500 static void osd_oxc_add(struct osd_object *obj, const char *name,
1501 const char *buf, int buflen)
1503 struct osd_xattr_entry *oxe;
1504 struct osd_xattr_entry *old = NULL;
1505 struct osd_xattr_entry *tmp;
1506 size_t namelen = strlen(name);
1507 size_t len = sizeof(*oxe) + namelen + 1 + buflen;
1509 OBD_ALLOC(oxe, len);
1513 INIT_LIST_HEAD(&oxe->oxe_list);
1515 oxe->oxe_namelen = namelen;
1516 memcpy(oxe->oxe_buf, name, namelen);
1518 LASSERT(buf != NULL);
1519 memcpy(oxe->oxe_buf + namelen + 1, buf, buflen);
1520 oxe->oxe_exist = true;
1522 oxe->oxe_exist = false;
1525 /* this should be rarely called, just remove old and add new */
1526 spin_lock(&obj->oo_guard);
1527 list_for_each_entry(tmp, &obj->oo_xattr_list, oxe_list) {
1528 if (namelen == tmp->oxe_namelen &&
1529 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1535 list_replace_rcu(&old->oxe_list, &oxe->oxe_list);
1536 call_rcu(&old->oxe_rcu, osd_oxc_free);
1538 list_add_tail_rcu(&oxe->oxe_list, &obj->oo_xattr_list);
1540 spin_unlock(&obj->oo_guard);
1543 static void osd_oxc_del(struct osd_object *obj, const char *name)
1545 struct osd_xattr_entry *oxe;
1546 size_t namelen = strlen(name);
1548 spin_lock(&obj->oo_guard);
1549 list_for_each_entry(oxe, &obj->oo_xattr_list, oxe_list) {
1550 if (namelen == oxe->oxe_namelen &&
1551 strncmp(name, oxe->oxe_buf, namelen) == 0) {
1552 list_del_rcu(&oxe->oxe_list);
1553 call_rcu(&oxe->oxe_rcu, osd_oxc_free);
1557 spin_unlock(&obj->oo_guard);
1560 static void osd_oxc_fini(struct osd_object *obj)
1562 struct osd_xattr_entry *oxe, *next;
1564 list_for_each_entry_safe(oxe, next, &obj->oo_xattr_list, oxe_list) {
1565 list_del(&oxe->oxe_list);
1566 OBD_FREE(oxe, oxe->oxe_len);
1571 * Concurrency: no concurrent access is possible that late in object
1574 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
1576 struct osd_object *obj = osd_obj(l);
1577 struct lu_object_header *h = obj->oo_header;
1579 LINVRNT(osd_invariant(obj));
1582 dt_object_fini(&obj->oo_dt);
1583 if (obj->oo_hl_head != NULL)
1584 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
1587 lu_object_header_fini(h);
1593 * Concurrency: no concurrent access is possible that late in object
1596 static void osd_index_fini(struct osd_object *o)
1598 struct iam_container *bag;
1600 if (o->oo_dir != NULL) {
1601 bag = &o->oo_dir->od_container;
1602 if (o->oo_inode != NULL) {
1603 if (bag->ic_object == o->oo_inode)
1604 iam_container_fini(bag);
1606 OBD_FREE_PTR(o->oo_dir);
1612 * Concurrency: no concurrent access is possible that late in object
1613 * life-cycle (for all existing callers, that is. New callers have to provide
1614 * their own locking.)
1616 static int osd_inode_unlinked(const struct inode *inode)
1618 return inode->i_nlink == 0;
1622 OSD_TXN_OI_DELETE_CREDITS = 20,
1623 OSD_TXN_INODE_DELETE_CREDITS = 20
1630 #if OSD_THANDLE_STATS
1632 * Set time when the handle is allocated
1634 static void osd_th_alloced(struct osd_thandle *oth)
1636 oth->oth_alloced = ktime_get();
1640 * Set time when the handle started
1642 static void osd_th_started(struct osd_thandle *oth)
1644 oth->oth_started = ktime_get();
1648 * Check whether the we deal with this handle for too long.
1650 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
1651 ktime_t alloced, ktime_t started,
1654 ktime_t now = ktime_get();
1656 LASSERT(dev != NULL);
1658 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
1659 ktime_us_delta(started, alloced));
1660 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
1661 ktime_us_delta(closed, started));
1662 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
1663 ktime_us_delta(now, closed));
1665 if (ktime_before(ktime_add_ns(alloced, 30 * NSEC_PER_SEC), now)) {
1666 CWARN("transaction handle %p was open for too long: now %lld, alloced %lld, started %lld, closed %lld\n",
1667 oth, now, alloced, started, closed);
1668 libcfs_debug_dumpstack(NULL);
1672 #define OSD_CHECK_SLOW_TH(oth, dev, expr) \
1674 ktime_t __closed = ktime_get(); \
1675 ktime_t __alloced = oth->oth_alloced; \
1676 ktime_t __started = oth->oth_started; \
1679 __osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
1682 #else /* OSD_THANDLE_STATS */
1684 #define osd_th_alloced(h) do {} while(0)
1685 #define osd_th_started(h) do {} while(0)
1686 #define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
1688 #endif /* OSD_THANDLE_STATS */
1691 * Concurrency: doesn't access mutable data.
1693 static int osd_param_is_not_sane(const struct osd_device *dev,
1694 const struct thandle *th)
1696 struct osd_thandle *oh = container_of(th, typeof(*oh), ot_super);
1698 return oh->ot_credits > osd_transaction_size(dev);
1702 * Concurrency: shouldn't matter.
1704 static void osd_trans_commit_cb(struct super_block *sb,
1705 struct ldiskfs_journal_cb_entry *jcb, int error)
1707 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
1708 struct thandle *th = &oh->ot_super;
1709 struct lu_device *lud = &th->th_dev->dd_lu_dev;
1710 struct dt_txn_commit_cb *dcb, *tmp;
1712 LASSERT(oh->ot_handle == NULL);
1715 CERROR("transaction @0x%p commit error: %d\n", th, error);
1717 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_DELAY_TRANS, 40);
1718 /* call per-transaction callbacks if any */
1719 list_for_each_entry_safe(dcb, tmp, &oh->ot_commit_dcb_list,
1721 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1722 "commit callback entry: magic=%x name='%s'\n",
1723 dcb->dcb_magic, dcb->dcb_name);
1724 list_del_init(&dcb->dcb_linkage);
1725 dcb->dcb_func(NULL, th, dcb, error);
1728 lu_ref_del_at(&lud->ld_reference, &oh->ot_dev_link, "osd-tx", th);
1735 #ifndef HAVE_SB_START_WRITE
1736 # define sb_start_write(sb) do {} while (0)
1737 # define sb_end_write(sb) do {} while (0)
1740 static struct thandle *osd_trans_create(const struct lu_env *env,
1741 struct dt_device *d)
1743 struct osd_thread_info *oti = osd_oti_get(env);
1744 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1745 struct osd_thandle *oh;
1751 CERROR("%s: someone try to start transaction under "
1752 "readonly mode, should be disabled.\n",
1753 osd_name(osd_dt_dev(d)));
1755 RETURN(ERR_PTR(-EROFS));
1758 /* on pending IO in this thread should left from prev. request */
1759 LASSERT(atomic_read(&iobuf->dr_numreqs) == 0);
1761 sb_start_write(osd_sb(osd_dt_dev(d)));
1763 OBD_ALLOC_GFP(oh, sizeof(*oh), GFP_NOFS);
1765 sb_end_write(osd_sb(osd_dt_dev(d)));
1766 RETURN(ERR_PTR(-ENOMEM));
1769 oh->ot_quota_trans = &oti->oti_quota_trans;
1770 memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
1775 INIT_LIST_HEAD(&oh->ot_commit_dcb_list);
1776 INIT_LIST_HEAD(&oh->ot_stop_dcb_list);
1777 INIT_LIST_HEAD(&oh->ot_trunc_locks);
1780 memset(oti->oti_declare_ops, 0,
1781 sizeof(oti->oti_declare_ops));
1782 memset(oti->oti_declare_ops_cred, 0,
1783 sizeof(oti->oti_declare_ops_cred));
1784 memset(oti->oti_declare_ops_used, 0,
1785 sizeof(oti->oti_declare_ops_used));
1787 oti->oti_ins_cache_depth++;
1792 void osd_trans_dump_creds(const struct lu_env *env, struct thandle *th)
1794 struct osd_thread_info *oti = osd_oti_get(env);
1795 struct osd_thandle *oh;
1797 oh = container_of0(th, struct osd_thandle, ot_super);
1798 LASSERT(oh != NULL);
1800 CWARN(" create: %u/%u/%u, destroy: %u/%u/%u\n",
1801 oti->oti_declare_ops[OSD_OT_CREATE],
1802 oti->oti_declare_ops_cred[OSD_OT_CREATE],
1803 oti->oti_declare_ops_used[OSD_OT_CREATE],
1804 oti->oti_declare_ops[OSD_OT_DESTROY],
1805 oti->oti_declare_ops_cred[OSD_OT_DESTROY],
1806 oti->oti_declare_ops_used[OSD_OT_DESTROY]);
1807 CWARN(" attr_set: %u/%u/%u, xattr_set: %u/%u/%u\n",
1808 oti->oti_declare_ops[OSD_OT_ATTR_SET],
1809 oti->oti_declare_ops_cred[OSD_OT_ATTR_SET],
1810 oti->oti_declare_ops_used[OSD_OT_ATTR_SET],
1811 oti->oti_declare_ops[OSD_OT_XATTR_SET],
1812 oti->oti_declare_ops_cred[OSD_OT_XATTR_SET],
1813 oti->oti_declare_ops_used[OSD_OT_XATTR_SET]);
1814 CWARN(" write: %u/%u/%u, punch: %u/%u/%u, quota %u/%u/%u\n",
1815 oti->oti_declare_ops[OSD_OT_WRITE],
1816 oti->oti_declare_ops_cred[OSD_OT_WRITE],
1817 oti->oti_declare_ops_used[OSD_OT_WRITE],
1818 oti->oti_declare_ops[OSD_OT_PUNCH],
1819 oti->oti_declare_ops_cred[OSD_OT_PUNCH],
1820 oti->oti_declare_ops_used[OSD_OT_PUNCH],
1821 oti->oti_declare_ops[OSD_OT_QUOTA],
1822 oti->oti_declare_ops_cred[OSD_OT_QUOTA],
1823 oti->oti_declare_ops_used[OSD_OT_QUOTA]);
1824 CWARN(" insert: %u/%u/%u, delete: %u/%u/%u\n",
1825 oti->oti_declare_ops[OSD_OT_INSERT],
1826 oti->oti_declare_ops_cred[OSD_OT_INSERT],
1827 oti->oti_declare_ops_used[OSD_OT_INSERT],
1828 oti->oti_declare_ops[OSD_OT_DELETE],
1829 oti->oti_declare_ops_cred[OSD_OT_DELETE],
1830 oti->oti_declare_ops_used[OSD_OT_DELETE]);
1831 CWARN(" ref_add: %u/%u/%u, ref_del: %u/%u/%u\n",
1832 oti->oti_declare_ops[OSD_OT_REF_ADD],
1833 oti->oti_declare_ops_cred[OSD_OT_REF_ADD],
1834 oti->oti_declare_ops_used[OSD_OT_REF_ADD],
1835 oti->oti_declare_ops[OSD_OT_REF_DEL],
1836 oti->oti_declare_ops_cred[OSD_OT_REF_DEL],
1837 oti->oti_declare_ops_used[OSD_OT_REF_DEL]);
1841 * Concurrency: shouldn't matter.
1843 static int osd_trans_start(const struct lu_env *env, struct dt_device *d,
1846 struct osd_thread_info *oti = osd_oti_get(env);
1847 struct osd_device *dev = osd_dt_dev(d);
1849 struct osd_thandle *oh;
1854 LASSERT(current->journal_info == NULL);
1856 oh = container_of0(th, struct osd_thandle, ot_super);
1857 LASSERT(oh != NULL);
1858 LASSERT(oh->ot_handle == NULL);
1860 rc = dt_txn_hook_start(env, d, th);
1864 if (unlikely(osd_param_is_not_sane(dev, th))) {
1865 static unsigned long last_printed;
1866 static int last_credits;
1869 * don't make noise on a tiny testing systems
1870 * actual credits misuse will be caught anyway
1872 if (last_credits != oh->ot_credits &&
1873 time_after(jiffies, last_printed +
1874 cfs_time_seconds(60)) &&
1875 osd_transaction_size(dev) > 512) {
1876 CWARN("%s: credits %u > trans_max %u\n", osd_name(dev),
1877 oh->ot_credits, osd_transaction_size(dev));
1878 osd_trans_dump_creds(env, th);
1879 libcfs_debug_dumpstack(NULL);
1880 last_credits = oh->ot_credits;
1881 last_printed = jiffies;
1884 * XXX Limit the credits to 'max_transaction_buffers', and
1885 * let the underlying filesystem to catch the error if
1886 * we really need so many credits.
1888 * This should be removed when we can calculate the
1889 * credits precisely.
1891 oh->ot_credits = osd_transaction_size(dev);
1892 } else if (ldiskfs_track_declares_assert != 0) {
1894 * reserve few credits to prevent an assertion in JBD
1895 * our debugging mechanism will be able to detected
1896 * overuse. this can help to debug single-update
1899 oh->ot_credits += 10;
1900 if (unlikely(osd_param_is_not_sane(dev, th)))
1901 oh->ot_credits = osd_transaction_size(dev);
1904 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_TXN_START))
1905 GOTO(out, rc = -EIO);
1908 * XXX temporary stuff. Some abstraction layer should
1911 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, oh->ot_credits);
1915 LASSERT(oti->oti_txns == 0);
1917 lu_device_get(&d->dd_lu_dev);
1918 lu_ref_add_at(&d->dd_lu_dev.ld_reference, &oh->ot_dev_link,
1929 static int osd_seq_exists(const struct lu_env *env,
1930 struct osd_device *osd, u64 seq)
1932 struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
1933 struct seq_server_site *ss = osd_seq_site(osd);
1938 LASSERT(ss != NULL);
1939 LASSERT(ss->ss_server_fld != NULL);
1941 rc = osd_fld_lookup(env, osd, seq, range);
1944 CERROR("%s: can't lookup FLD sequence %#llx: rc = %d\n",
1945 osd_name(osd), seq, rc);
1949 RETURN(ss->ss_node_id == range->lsr_index);
1952 static void osd_trans_stop_cb(struct osd_thandle *oth, int result)
1954 struct dt_txn_commit_cb *dcb;
1955 struct dt_txn_commit_cb *tmp;
1957 /* call per-transaction stop callbacks if any */
1958 list_for_each_entry_safe(dcb, tmp, &oth->ot_stop_dcb_list,
1960 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1961 "commit callback entry: magic=%x name='%s'\n",
1962 dcb->dcb_magic, dcb->dcb_name);
1963 list_del_init(&dcb->dcb_linkage);
1964 dcb->dcb_func(NULL, &oth->ot_super, dcb, result);
1969 * Concurrency: shouldn't matter.
1971 static int osd_trans_stop(const struct lu_env *env, struct dt_device *dt,
1974 struct osd_thread_info *oti = osd_oti_get(env);
1975 struct osd_thandle *oh;
1976 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1977 struct osd_device *osd = osd_dt_dev(th->th_dev);
1978 struct qsd_instance *qsd = osd_def_qsd(osd);
1979 struct lquota_trans *qtrans;
1980 LIST_HEAD(truncates);
1981 int rc = 0, remove_agents = 0;
1985 oh = container_of0(th, struct osd_thandle, ot_super);
1987 remove_agents = oh->ot_remove_agents;
1989 qtrans = oh->ot_quota_trans;
1990 oh->ot_quota_trans = NULL;
1992 /* move locks to local list, stop tx, execute truncates */
1993 list_splice(&oh->ot_trunc_locks, &truncates);
1995 if (oh->ot_handle != NULL) {
1998 handle_t *hdl = oh->ot_handle;
2001 * add commit callback
2002 * notice we don't do this in osd_trans_start()
2003 * as underlying transaction can change during truncate
2005 ldiskfs_journal_callback_add(hdl, osd_trans_commit_cb,
2008 LASSERT(oti->oti_txns == 1);
2011 rc = dt_txn_hook_stop(env, th);
2013 CERROR("%s: failed in transaction hook: rc = %d\n",
2016 osd_trans_stop_cb(oh, rc);
2017 /* hook functions might modify th_sync */
2018 hdl->h_sync = th->th_sync;
2020 oh->ot_handle = NULL;
2021 OSD_CHECK_SLOW_TH(oh, osd, rc2 = ldiskfs_journal_stop(hdl));
2023 CERROR("%s: failed to stop transaction: rc = %d\n",
2024 osd_name(osd), rc2);
2028 osd_process_truncates(&truncates);
2030 osd_trans_stop_cb(oh, th->th_result);
2034 osd_trunc_unlock_all(&truncates);
2036 /* inform the quota slave device that the transaction is stopping */
2037 qsd_op_end(env, qsd, qtrans);
2040 * as we want IO to journal and data IO be concurrent, we don't block
2041 * awaiting data IO completion in osd_do_bio(), instead we wait here
2042 * once transaction is submitted to the journal. all reqular requests
2043 * don't do direct IO (except read/write), thus this wait_event becomes
2046 * IMPORTANT: we have to wait till any IO submited by the thread is
2047 * completed otherwise iobuf may be corrupted by different request
2049 wait_event(iobuf->dr_wait,
2050 atomic_read(&iobuf->dr_numreqs) == 0);
2051 osd_fini_iobuf(osd, iobuf);
2053 rc = iobuf->dr_error;
2055 if (unlikely(remove_agents != 0))
2056 osd_process_scheduled_agent_removals(env, osd);
2058 oti->oti_ins_cache_depth--;
2059 /* reset OI cache for safety */
2060 if (oti->oti_ins_cache_depth == 0)
2061 oti->oti_ins_cache_used = 0;
2063 sb_end_write(osd_sb(osd));
2068 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
2070 struct osd_thandle *oh = container_of0(th, struct osd_thandle,
2073 LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
2074 LASSERT(&dcb->dcb_func != NULL);
2075 if (dcb->dcb_flags & DCB_TRANS_STOP)
2076 list_add(&dcb->dcb_linkage, &oh->ot_stop_dcb_list);
2078 list_add(&dcb->dcb_linkage, &oh->ot_commit_dcb_list);
2084 * Called just before object is freed. Releases all resources except for
2085 * object itself (that is released by osd_object_free()).
2087 * Concurrency: no concurrent access is possible that late in object
2090 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
2092 struct osd_object *obj = osd_obj(l);
2093 struct qsd_instance *qsd = osd_def_qsd(osd_obj2dev(obj));
2094 struct inode *inode = obj->oo_inode;
2099 LINVRNT(osd_invariant(obj));
2102 * If object is unlinked remove fid->ino mapping from object index.
2105 osd_index_fini(obj);
2110 uid = i_uid_read(inode);
2111 gid = i_gid_read(inode);
2112 projid = i_projid_read(inode);
2114 obj->oo_inode = NULL;
2117 /* do not rebalance quota if the caller needs to release memory
2118 * otherwise qsd_refresh_usage() may went into a new ldiskfs
2119 * transaction and risk to deadlock - LU-12178 */
2120 if (current->flags & (PF_MEMALLOC | PF_KSWAPD))
2123 if (!obj->oo_header && qsd) {
2124 struct osd_thread_info *info = osd_oti_get(env);
2125 struct lquota_id_info *qi = &info->oti_qi;
2127 /* Release granted quota to master if necessary */
2128 qi->lqi_id.qid_uid = uid;
2129 qsd_op_adjust(env, qsd, &qi->lqi_id, USRQUOTA);
2131 qi->lqi_id.qid_uid = gid;
2132 qsd_op_adjust(env, qsd, &qi->lqi_id, GRPQUOTA);
2134 qi->lqi_id.qid_uid = projid;
2135 qsd_op_adjust(env, qsd, &qi->lqi_id, PRJQUOTA);
2140 * Concurrency: ->loo_object_release() is called under site spin-lock.
2142 static void osd_object_release(const struct lu_env *env,
2143 struct lu_object *l)
2145 struct osd_object *o = osd_obj(l);
2148 * nobody should be releasing a non-destroyed object with nlink=0
2149 * the API allows this, but ldiskfs doesn't like and then report
2150 * this inode as deleted
2152 LASSERT(!(o->oo_destroyed == 0 && o->oo_inode &&
2153 o->oo_inode->i_nlink == 0));
2157 * Concurrency: shouldn't matter.
2159 static int osd_object_print(const struct lu_env *env, void *cookie,
2160 lu_printer_t p, const struct lu_object *l)
2162 struct osd_object *o = osd_obj(l);
2163 struct iam_descr *d;
2165 if (o->oo_dir != NULL)
2166 d = o->oo_dir->od_container.ic_descr;
2169 return (*p)(env, cookie,
2170 LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
2172 o->oo_inode ? o->oo_inode->i_ino : 0UL,
2173 o->oo_inode ? o->oo_inode->i_generation : 0,
2174 d ? d->id_ops->id_name : "plain");
2178 * Concurrency: shouldn't matter.
2180 int osd_statfs(const struct lu_env *env, struct dt_device *d,
2181 struct obd_statfs *sfs, struct obd_statfs_info *info)
2183 struct osd_device *osd = osd_dt_dev(d);
2184 struct super_block *sb = osd_sb(osd);
2185 struct kstatfs *ksfs;
2189 if (unlikely(osd->od_mnt == NULL))
2190 return -EINPROGRESS;
2192 /* osd_lproc.c call this without env, allocate ksfs for that case */
2193 if (unlikely(env == NULL)) {
2194 OBD_ALLOC_PTR(ksfs);
2198 ksfs = &osd_oti_get(env)->oti_ksfs;
2201 result = sb->s_op->statfs(sb->s_root, ksfs);
2205 statfs_pack(sfs, ksfs);
2206 if (unlikely(sb->s_flags & SB_RDONLY))
2207 sfs->os_state |= OS_STATE_READONLY;
2209 sfs->os_state |= osd->od_nonrotational ? OS_STATE_NONROT : 0;
2211 if (ldiskfs_has_feature_extents(sb))
2212 sfs->os_maxbytes = sb->s_maxbytes;
2214 sfs->os_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2217 * Reserve some space so to avoid fragmenting the filesystem too much.
2218 * Fragmentation not only impacts performance, but can also increase
2219 * metadata overhead significantly, causing grant calculation to be
2222 * Reserve 0.78% of total space, at least 8MB for small filesystems.
2224 BUILD_BUG_ON(OSD_STATFS_RESERVED <= LDISKFS_MAX_BLOCK_SIZE);
2225 reserved = OSD_STATFS_RESERVED >> sb->s_blocksize_bits;
2226 if (likely(sfs->os_blocks >= reserved << OSD_STATFS_RESERVED_SHIFT))
2227 reserved = sfs->os_blocks >> OSD_STATFS_RESERVED_SHIFT;
2229 sfs->os_blocks -= reserved;
2230 sfs->os_bfree -= min(reserved, sfs->os_bfree);
2231 sfs->os_bavail -= min(reserved, sfs->os_bavail);
2234 if (unlikely(env == NULL))
2240 * Estimate space needed for file creations. We assume the largest filename
2241 * which is 2^64 - 1, hence a filename of 20 chars.
2242 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
2244 #ifdef __LDISKFS_DIR_REC_LEN
2245 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
2247 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
2251 * Concurrency: doesn't access mutable data.
2253 static void osd_conf_get(const struct lu_env *env,
2254 const struct dt_device *dev,
2255 struct dt_device_param *param)
2257 struct osd_device *d = osd_dt_dev(dev);
2258 struct super_block *sb = osd_sb(d);
2259 struct blk_integrity *bi = bdev_get_integrity(sb->s_bdev);
2264 * XXX should be taken from not-yet-existing fs abstraction layer.
2266 param->ddp_max_name_len = LDISKFS_NAME_LEN;
2267 param->ddp_max_nlink = LDISKFS_LINK_MAX;
2268 param->ddp_symlink_max = sb->s_blocksize;
2269 param->ddp_mount_type = LDD_MT_LDISKFS;
2270 if (ldiskfs_has_feature_extents(sb))
2271 param->ddp_maxbytes = sb->s_maxbytes;
2273 param->ddp_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2275 * inode are statically allocated, so per-inode space consumption
2276 * is the space consumed by the directory entry
2278 param->ddp_inodespace = PER_OBJ_USAGE;
2280 * EXT_INIT_MAX_LEN is the theoretical maximum extent size (32k blocks
2281 * is 128MB) which is unlikely to be hit in real life. Report a smaller
2282 * maximum length to not under-count the actual number of extents
2283 * needed for writing a file if there are sub-optimal block allocations.
2285 param->ddp_max_extent_blks = EXT_INIT_MAX_LEN >> 1;
2286 /* worst-case extent insertion metadata overhead */
2287 param->ddp_extent_tax = 6 * LDISKFS_BLOCK_SIZE(sb);
2288 param->ddp_mntopts = 0;
2289 if (test_opt(sb, XATTR_USER))
2290 param->ddp_mntopts |= MNTOPT_USERXATTR;
2291 if (test_opt(sb, POSIX_ACL))
2292 param->ddp_mntopts |= MNTOPT_ACL;
2295 * LOD might calculate the max stripe count based on max_ea_size,
2296 * so we need take account in the overhead as well,
2297 * xattr_header + magic + xattr_entry_head
2299 ea_overhead = sizeof(struct ldiskfs_xattr_header) + sizeof(__u32) +
2300 LDISKFS_XATTR_LEN(XATTR_NAME_MAX_LEN);
2302 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
2303 if (ldiskfs_has_feature_ea_inode(sb))
2304 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE -
2308 param->ddp_max_ea_size = sb->s_blocksize - ea_overhead;
2310 if (param->ddp_max_ea_size > OBD_MAX_EA_SIZE)
2311 param->ddp_max_ea_size = OBD_MAX_EA_SIZE;
2314 * Preferred RPC size for efficient disk IO. 4MB shows good
2315 * all-around performance for ldiskfs, but use bigalloc chunk size
2316 * by default if larger.
2318 #if defined(LDISKFS_CLUSTER_SIZE)
2319 if (LDISKFS_CLUSTER_SIZE(sb) > DT_DEF_BRW_SIZE)
2320 param->ddp_brw_size = LDISKFS_CLUSTER_SIZE(sb);
2323 param->ddp_brw_size = DT_DEF_BRW_SIZE;
2325 param->ddp_t10_cksum_type = 0;
2327 unsigned short interval = blk_integrity_interval(bi);
2328 name = blk_integrity_name(bi);
2336 if (strncmp(name, "T10-DIF-TYPE",
2337 sizeof("T10-DIF-TYPE") - 1) == 0) {
2338 /* also skip "1/3-" at end */
2339 const int type_off = sizeof("T10-DIF-TYPE.");
2340 char type_number = name[type_off - 2];
2342 if (interval != 512 && interval != 4096) {
2343 CERROR("%s: unsupported T10PI sector size %u\n",
2344 d->od_svname, interval);
2345 } else if (type_number != '1' && type_number != '3') {
2346 CERROR("%s: unsupported T10PI type %s\n",
2347 d->od_svname, name);
2348 } else if (strcmp(name + type_off, "CRC") == 0) {
2349 d->od_t10_type = type_number == '1' ?
2350 OSD_T10_TYPE1_CRC : OSD_T10_TYPE3_CRC;
2351 param->ddp_t10_cksum_type = interval == 512 ?
2352 OBD_CKSUM_T10CRC512 :
2354 } else if (strcmp(name + type_off, "IP") == 0) {
2355 d->od_t10_type = type_number == '1' ?
2356 OSD_T10_TYPE1_IP : OSD_T10_TYPE3_IP;
2357 param->ddp_t10_cksum_type = interval == 512 ?
2358 OBD_CKSUM_T10IP512 :
2361 CERROR("%s: unsupported checksum type of "
2363 d->od_svname, name);
2367 CERROR("%s: unsupported T10PI type '%s'",
2368 d->od_svname, name);
2373 static struct super_block *osd_mnt_sb_get(const struct dt_device *d)
2375 return osd_sb(osd_dt_dev(d));
2379 * Concurrency: shouldn't matter.
2381 static int osd_sync(const struct lu_env *env, struct dt_device *d)
2384 struct super_block *s = osd_sb(osd_dt_dev(d));
2387 down_read(&s->s_umount);
2388 rc = s->s_op->sync_fs(s, 1);
2389 up_read(&s->s_umount);
2391 CDEBUG(D_CACHE, "%s: synced OSD: rc = %d\n", osd_dt_dev(d)->od_svname,
2398 * Start commit for OSD device.
2400 * An implementation of dt_commit_async method for OSD device.
2401 * Asychronously starts underlayng fs sync and thereby a transaction
2404 * \param env environment
2405 * \param d dt device
2407 * \see dt_device_operations
2409 static int osd_commit_async(const struct lu_env *env,
2410 struct dt_device *d)
2412 struct super_block *s = osd_sb(osd_dt_dev(d));
2417 CDEBUG(D_HA, "%s: async commit OSD\n", osd_dt_dev(d)->od_svname);
2418 down_read(&s->s_umount);
2419 rc = s->s_op->sync_fs(s, 0);
2420 up_read(&s->s_umount);
2425 /* Our own copy of the set readonly functions if present, or NU if not. */
2426 static int (*priv_dev_set_rdonly)(struct block_device *bdev);
2427 static int (*priv_dev_check_rdonly)(struct block_device *bdev);
2428 /* static int (*priv_dev_clear_rdonly)(struct block_device *bdev); */
2429 static int (*priv_security_file_alloc)(struct file *file);
2431 int osd_security_file_alloc(struct file *file)
2433 if (priv_security_file_alloc)
2434 return priv_security_file_alloc(file);
2439 * Concurrency: shouldn't matter.
2441 static int osd_ro(const struct lu_env *env, struct dt_device *d)
2443 struct super_block *sb = osd_sb(osd_dt_dev(d));
2444 struct block_device *dev = sb->s_bdev;
2445 int rc = -EOPNOTSUPP;
2449 if (priv_dev_set_rdonly) {
2450 struct block_device *jdev = LDISKFS_SB(sb)->journal_bdev;
2453 CERROR("*** setting %s read-only ***\n",
2454 osd_dt_dev(d)->od_svname);
2456 if (sb->s_op->freeze_fs) {
2457 rc = sb->s_op->freeze_fs(sb);
2462 if (jdev && (jdev != dev)) {
2463 CDEBUG(D_IOCTL | D_HA, "set journal dev %lx rdonly\n",
2465 priv_dev_set_rdonly(jdev);
2467 CDEBUG(D_IOCTL | D_HA, "set dev %lx rdonly\n", (long)dev);
2468 priv_dev_set_rdonly(dev);
2470 if (sb->s_op->unfreeze_fs)
2471 sb->s_op->unfreeze_fs(sb);
2476 CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
2477 osd_dt_dev(d)->od_svname, (long)dev, rc);
2483 * Note: we do not count into QUOTA here.
2484 * If we mount with --data_journal we may need more.
2486 const int osd_dto_credits_noquota[DTO_NR] = {
2489 * INDEX_EXTRA_TRANS_BLOCKS(8) +
2490 * SINGLEDATA_TRANS_BLOCKS(8)
2491 * XXX Note: maybe iam need more, since iam have more level than
2494 [DTO_INDEX_INSERT] = 16,
2497 * just modify a single entry, probably merge few within a block
2499 [DTO_INDEX_DELETE] = 1,
2503 [DTO_INDEX_UPDATE] = 16,
2505 * 4(inode, inode bits, groups, GDT)
2506 * notice: OI updates are counted separately with DTO_INDEX_INSERT
2508 [DTO_OBJECT_CREATE] = 4,
2510 * 4(inode, inode bits, groups, GDT)
2511 * notice: OI updates are counted separately with DTO_INDEX_DELETE
2513 [DTO_OBJECT_DELETE] = 4,
2515 * Attr set credits (inode)
2517 [DTO_ATTR_SET_BASE] = 1,
2519 * Xattr set. The same as xattr of EXT3.
2520 * DATA_TRANS_BLOCKS(14)
2521 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
2522 * are also counted in. Do not know why?
2524 [DTO_XATTR_SET] = 14,
2526 * credits for inode change during write.
2528 [DTO_WRITE_BASE] = 3,
2530 * credits for single block write.
2532 [DTO_WRITE_BLOCK] = 14,
2534 * Attr set credits for chown.
2535 * This is extra credits for setattr, and it is null without quota
2537 [DTO_ATTR_SET_CHOWN] = 0
2540 static const struct dt_device_operations osd_dt_ops = {
2541 .dt_root_get = osd_root_get,
2542 .dt_statfs = osd_statfs,
2543 .dt_trans_create = osd_trans_create,
2544 .dt_trans_start = osd_trans_start,
2545 .dt_trans_stop = osd_trans_stop,
2546 .dt_trans_cb_add = osd_trans_cb_add,
2547 .dt_conf_get = osd_conf_get,
2548 .dt_mnt_sb_get = osd_mnt_sb_get,
2549 .dt_sync = osd_sync,
2551 .dt_commit_async = osd_commit_async,
2554 static void osd_read_lock(const struct lu_env *env, struct dt_object *dt,
2557 struct osd_object *obj = osd_dt_obj(dt);
2558 struct osd_thread_info *oti = osd_oti_get(env);
2560 LINVRNT(osd_invariant(obj));
2562 LASSERT(obj->oo_owner != env);
2563 down_read_nested(&obj->oo_sem, role);
2565 LASSERT(obj->oo_owner == NULL);
2569 static void osd_write_lock(const struct lu_env *env, struct dt_object *dt,
2572 struct osd_object *obj = osd_dt_obj(dt);
2573 struct osd_thread_info *oti = osd_oti_get(env);
2575 LINVRNT(osd_invariant(obj));
2577 LASSERT(obj->oo_owner != env);
2578 down_write_nested(&obj->oo_sem, role);
2580 LASSERT(obj->oo_owner == NULL);
2581 obj->oo_owner = env;
2585 static void osd_read_unlock(const struct lu_env *env, struct dt_object *dt)
2587 struct osd_object *obj = osd_dt_obj(dt);
2588 struct osd_thread_info *oti = osd_oti_get(env);
2590 LINVRNT(osd_invariant(obj));
2592 LASSERT(oti->oti_r_locks > 0);
2594 up_read(&obj->oo_sem);
2597 static void osd_write_unlock(const struct lu_env *env, struct dt_object *dt)
2599 struct osd_object *obj = osd_dt_obj(dt);
2600 struct osd_thread_info *oti = osd_oti_get(env);
2602 LINVRNT(osd_invariant(obj));
2604 LASSERT(obj->oo_owner == env);
2605 LASSERT(oti->oti_w_locks > 0);
2607 obj->oo_owner = NULL;
2608 up_write(&obj->oo_sem);
2611 static int osd_write_locked(const struct lu_env *env, struct dt_object *dt)
2613 struct osd_object *obj = osd_dt_obj(dt);
2615 LINVRNT(osd_invariant(obj));
2617 return obj->oo_owner == env;
2620 static void osd_inode_getattr(const struct lu_env *env,
2621 struct inode *inode, struct lu_attr *attr)
2623 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
2624 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
2625 LA_PROJID | LA_FLAGS | LA_NLINK | LA_RDEV |
2626 LA_BLKSIZE | LA_TYPE;
2628 attr->la_atime = inode->i_atime.tv_sec;
2629 attr->la_mtime = inode->i_mtime.tv_sec;
2630 attr->la_ctime = inode->i_ctime.tv_sec;
2631 attr->la_mode = inode->i_mode;
2632 attr->la_size = i_size_read(inode);
2633 attr->la_blocks = inode->i_blocks;
2634 attr->la_uid = i_uid_read(inode);
2635 attr->la_gid = i_gid_read(inode);
2636 attr->la_projid = i_projid_read(inode);
2637 attr->la_flags = ll_inode_to_ext_flags(inode->i_flags);
2638 attr->la_nlink = inode->i_nlink;
2639 attr->la_rdev = inode->i_rdev;
2640 attr->la_blksize = 1 << inode->i_blkbits;
2641 attr->la_blkbits = inode->i_blkbits;
2643 * Ext4 did not transfer inherit flags from raw inode
2644 * to inode flags, and ext4 internally test raw inode
2645 * @i_flags directly. Instead of patching ext4, we do it here.
2647 if (LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL)
2648 attr->la_flags |= LUSTRE_PROJINHERIT_FL;
2651 static int osd_attr_get(const struct lu_env *env, struct dt_object *dt,
2652 struct lu_attr *attr)
2654 struct osd_object *obj = osd_dt_obj(dt);
2656 if (unlikely(!dt_object_exists(dt)))
2658 if (unlikely(obj->oo_destroyed))
2661 LASSERT(!dt_object_remote(dt));
2662 LINVRNT(osd_invariant(obj));
2664 spin_lock(&obj->oo_guard);
2665 osd_inode_getattr(env, obj->oo_inode, attr);
2666 if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL) {
2667 attr->la_valid |= LA_FLAGS;
2668 attr->la_flags |= LUSTRE_ORPHAN_FL;
2670 spin_unlock(&obj->oo_guard);
2675 static int osd_declare_attr_qid(const struct lu_env *env,
2676 struct osd_object *obj,
2677 struct osd_thandle *oh, long long bspace,
2678 qid_t old_id, qid_t new_id, bool enforce,
2679 unsigned int type, bool ignore_edquot)
2682 struct osd_thread_info *info = osd_oti_get(env);
2683 struct lquota_id_info *qi = &info->oti_qi;
2685 qi->lqi_type = type;
2686 /* inode accounting */
2687 qi->lqi_is_blk = false;
2689 /* one more inode for the new id ... */
2690 qi->lqi_id.qid_uid = new_id;
2692 /* Reserve credits for the new id */
2693 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
2694 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2699 /* and one less inode for the current id */
2700 qi->lqi_id.qid_uid = old_id;
2702 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2703 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2708 /* block accounting */
2709 qi->lqi_is_blk = true;
2711 /* more blocks for the new id ... */
2712 qi->lqi_id.qid_uid = new_id;
2713 qi->lqi_space = bspace;
2715 * Credits for the new uid has been reserved, re-use "obj"
2716 * to save credit reservation.
2718 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2719 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2724 /* and finally less blocks for the current uid */
2725 qi->lqi_id.qid_uid = old_id;
2726 qi->lqi_space = -bspace;
2727 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2728 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2734 static int osd_declare_attr_set(const struct lu_env *env,
2735 struct dt_object *dt,
2736 const struct lu_attr *attr,
2737 struct thandle *handle)
2739 struct osd_thandle *oh;
2740 struct osd_object *obj;
2749 LASSERT(dt != NULL);
2750 LASSERT(handle != NULL);
2752 obj = osd_dt_obj(dt);
2753 LASSERT(osd_invariant(obj));
2755 oh = container_of0(handle, struct osd_thandle, ot_super);
2756 LASSERT(oh->ot_handle == NULL);
2758 osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
2759 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2761 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
2762 osd_dto_credits_noquota[DTO_XATTR_SET]);
2764 if (attr == NULL || obj->oo_inode == NULL)
2767 bspace = obj->oo_inode->i_blocks << 9;
2768 bspace = toqb(bspace);
2771 * Changing ownership is always preformed by super user, it should not
2772 * fail with EDQUOT unless required explicitly.
2774 * We still need to call the osd_declare_qid() to calculate the journal
2775 * credits for updating quota accounting files and to trigger quota
2776 * space adjustment once the operation is completed.
2778 if (attr->la_valid & LA_UID || attr->la_valid & LA_GID) {
2779 bool ignore_edquot = !(attr->la_flags & LUSTRE_SET_SYNC_FL);
2782 CDEBUG(D_QUOTA, "%s: enforce quota on UID %u, GID %u"
2783 "(the quota space is %lld)\n",
2784 obj->oo_inode->i_sb->s_id, attr->la_uid,
2785 attr->la_gid, bspace);
2788 uid = i_uid_read(obj->oo_inode);
2789 enforce = (attr->la_valid & LA_UID) && (attr->la_uid != uid);
2790 rc = osd_declare_attr_qid(env, obj, oh, bspace, uid,
2791 attr->la_uid, enforce, USRQUOTA,
2796 gid = i_gid_read(obj->oo_inode);
2797 enforce = (attr->la_valid & LA_GID) && (attr->la_gid != gid);
2798 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2799 i_gid_read(obj->oo_inode),
2800 attr->la_gid, enforce, GRPQUOTA,
2806 #ifdef HAVE_PROJECT_QUOTA
2807 if (attr->la_valid & LA_PROJID) {
2808 __u32 projid = i_projid_read(obj->oo_inode);
2810 enforce = (attr->la_valid & LA_PROJID) &&
2811 (attr->la_projid != projid);
2812 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2813 (qid_t)projid, (qid_t)attr->la_projid,
2814 enforce, PRJQUOTA, true);
2822 static int osd_inode_setattr(const struct lu_env *env,
2823 struct inode *inode, const struct lu_attr *attr)
2825 __u64 bits = attr->la_valid;
2827 /* Only allow set size for regular file */
2828 if (!S_ISREG(inode->i_mode))
2829 bits &= ~(LA_SIZE | LA_BLOCKS);
2834 if (bits & LA_ATIME)
2835 inode->i_atime = osd_inode_time(inode, attr->la_atime);
2836 if (bits & LA_CTIME)
2837 inode->i_ctime = osd_inode_time(inode, attr->la_ctime);
2838 if (bits & LA_MTIME)
2839 inode->i_mtime = osd_inode_time(inode, attr->la_mtime);
2840 if (bits & LA_SIZE) {
2841 spin_lock(&inode->i_lock);
2842 LDISKFS_I(inode)->i_disksize = attr->la_size;
2843 i_size_write(inode, attr->la_size);
2844 spin_unlock(&inode->i_lock);
2848 * OSD should not change "i_blocks" which is used by quota.
2849 * "i_blocks" should be changed by ldiskfs only.
2852 inode->i_mode = (inode->i_mode & S_IFMT) |
2853 (attr->la_mode & ~S_IFMT);
2855 i_uid_write(inode, attr->la_uid);
2857 i_gid_write(inode, attr->la_gid);
2858 if (bits & LA_PROJID)
2859 i_projid_write(inode, attr->la_projid);
2860 if (bits & LA_NLINK)
2861 set_nlink(inode, attr->la_nlink);
2863 inode->i_rdev = attr->la_rdev;
2865 if (bits & LA_FLAGS) {
2866 /* always keep S_NOCMTIME */
2867 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
2870 * Ext4 did not transfer inherit flags from
2871 * @inode->i_flags to raw inode i_flags when writing
2872 * flags, we do it explictly here.
2874 if (attr->la_flags & LUSTRE_PROJINHERIT_FL)
2875 LDISKFS_I(inode)->i_flags |= LUSTRE_PROJINHERIT_FL;
2877 LDISKFS_I(inode)->i_flags &= ~LUSTRE_PROJINHERIT_FL;
2882 #ifdef HAVE_PROJECT_QUOTA
2883 static int osd_transfer_project(struct inode *inode, __u32 projid)
2885 struct super_block *sb = inode->i_sb;
2886 struct ldiskfs_inode_info *ei = LDISKFS_I(inode);
2889 struct ldiskfs_iloc iloc;
2890 struct ldiskfs_inode *raw_inode;
2891 struct dquot *transfer_to[LDISKFS_MAXQUOTAS] = { };
2893 if (!ldiskfs_has_feature_project(sb)) {
2894 LASSERT(__kprojid_val(LDISKFS_I(inode)->i_projid)
2895 == LDISKFS_DEF_PROJID);
2896 if (projid != LDISKFS_DEF_PROJID)
2902 if (LDISKFS_INODE_SIZE(sb) <= LDISKFS_GOOD_OLD_INODE_SIZE)
2905 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
2906 if (projid_eq(kprojid, LDISKFS_I(inode)->i_projid))
2909 err = ldiskfs_get_inode_loc(inode, &iloc);
2913 raw_inode = ldiskfs_raw_inode(&iloc);
2914 if (!LDISKFS_FITS_IN_INODE(raw_inode, ei, i_projid)) {
2921 dquot_initialize(inode);
2922 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
2923 if (transfer_to[PRJQUOTA]) {
2924 err = __dquot_transfer(inode, transfer_to);
2925 dqput(transfer_to[PRJQUOTA]);
2934 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
2938 if ((attr->la_valid & LA_UID && attr->la_uid != i_uid_read(inode)) ||
2939 (attr->la_valid & LA_GID && attr->la_gid != i_gid_read(inode))) {
2942 dquot_initialize(inode);
2944 if (attr->la_valid & LA_UID)
2945 iattr.ia_valid |= ATTR_UID;
2946 if (attr->la_valid & LA_GID)
2947 iattr.ia_valid |= ATTR_GID;
2948 iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
2949 iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
2951 rc = dquot_transfer(inode, &iattr);
2953 CERROR("%s: quota transfer failed: rc = %d. Is quota "
2954 "enforcement enabled on the ldiskfs "
2955 "filesystem?\n", inode->i_sb->s_id, rc);
2960 /* Handle project id transfer here properly */
2961 if (attr->la_valid & LA_PROJID &&
2962 attr->la_projid != i_projid_read(inode)) {
2963 #ifdef HAVE_PROJECT_QUOTA
2964 rc = osd_transfer_project(inode, attr->la_projid);
2969 CERROR("%s: quota transfer failed: rc = %d. Is project "
2970 "enforcement enabled on the ldiskfs "
2971 "filesystem?\n", inode->i_sb->s_id, rc);
2978 static int osd_attr_set(const struct lu_env *env,
2979 struct dt_object *dt,
2980 const struct lu_attr *attr,
2981 struct thandle *handle)
2983 struct osd_object *obj = osd_dt_obj(dt);
2984 struct inode *inode;
2987 if (!dt_object_exists(dt))
2990 LASSERT(handle != NULL);
2991 LASSERT(!dt_object_remote(dt));
2992 LASSERT(osd_invariant(obj));
2994 osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
2996 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING) &&
2997 !osd_obj2dev(obj)->od_is_ost) {
2998 struct osd_thread_info *oti = osd_oti_get(env);
2999 const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
3000 struct lu_fid *fid1 = &oti->oti_fid;
3001 struct osd_inode_id *id = &oti->oti_id;
3002 struct iam_path_descr *ipd;
3003 struct iam_container *bag;
3004 struct osd_thandle *oh;
3007 fid_cpu_to_be(fid1, fid0);
3008 memset(id, 1, sizeof(*id));
3009 bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
3010 fid0)->oi_dir.od_container;
3011 ipd = osd_idx_ipd_get(env, bag);
3012 if (unlikely(ipd == NULL))
3015 oh = container_of0(handle, struct osd_thandle, ot_super);
3016 rc = iam_update(oh->ot_handle, bag,
3017 (const struct iam_key *)fid1,
3018 (const struct iam_rec *)id, ipd);
3019 osd_ipd_put(env, bag, ipd);
3020 return(rc > 0 ? 0 : rc);
3023 inode = obj->oo_inode;
3025 rc = osd_quota_transfer(inode, attr);
3029 spin_lock(&obj->oo_guard);
3030 rc = osd_inode_setattr(env, inode, attr);
3031 spin_unlock(&obj->oo_guard);
3035 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3037 if (!(attr->la_valid & LA_FLAGS))
3040 /* Let's check if there are extra flags need to be set into LMA */
3041 if (attr->la_flags & LUSTRE_LMA_FL_MASKS) {
3042 struct osd_thread_info *info = osd_oti_get(env);
3043 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
3045 LASSERT(!obj->oo_pfid_in_lma);
3047 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
3048 &info->oti_ost_attrs);
3052 lma->lma_incompat |=
3053 lustre_to_lma_flags(attr->la_flags);
3054 lustre_lma_swab(lma);
3055 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA,
3056 lma, sizeof(*lma), XATTR_REPLACE);
3058 struct osd_device *osd = osd_obj2dev(obj);
3060 CWARN("%s: set "DFID" lma flags %u failed: rc = %d\n",
3061 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)),
3062 lma->lma_incompat, rc);
3065 attr->la_flags & LUSTRE_LMA_FL_MASKS;
3067 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
3070 osd_trans_exec_check(env, handle, OSD_OT_ATTR_SET);
3075 static struct dentry *osd_child_dentry_get(const struct lu_env *env,
3076 struct osd_object *obj,
3077 const char *name, const int namelen)
3079 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
3082 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
3083 umode_t mode, struct dt_allocation_hint *hint,
3084 struct thandle *th, struct lu_attr *attr)
3087 struct osd_device *osd = osd_obj2dev(obj);
3088 struct osd_thandle *oth;
3089 struct dt_object *parent = NULL;
3090 struct inode *inode;
3091 uid_t owner[2] = {0, 0};
3093 if (attr->la_valid & LA_UID)
3094 owner[0] = attr->la_uid;
3095 if (attr->la_valid & LA_GID)
3096 owner[1] = attr->la_gid;
3098 LINVRNT(osd_invariant(obj));
3099 LASSERT(obj->oo_inode == NULL);
3100 LASSERT(obj->oo_hl_head == NULL);
3102 if (S_ISDIR(mode) && ldiskfs_pdo) {
3104 ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
3105 if (obj->oo_hl_head == NULL)
3109 oth = container_of(th, struct osd_thandle, ot_super);
3110 LASSERT(oth->ot_handle->h_transaction != NULL);
3112 if (hint != NULL && hint->dah_parent != NULL &&
3113 !dt_object_remote(hint->dah_parent))
3114 parent = hint->dah_parent;
3116 inode = ldiskfs_create_inode(oth->ot_handle,
3117 parent ? osd_dt_obj(parent)->oo_inode :
3118 osd_sb(osd)->s_root->d_inode,
3120 if (!IS_ERR(inode)) {
3121 /* Do not update file c/mtime in ldiskfs. */
3122 inode->i_flags |= S_NOCMTIME;
3125 * For new created object, it must be consistent,
3126 * and it is unnecessary to scrub against it.
3128 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
3130 obj->oo_inode = inode;
3133 if (obj->oo_hl_head != NULL) {
3134 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
3135 obj->oo_hl_head = NULL;
3137 result = PTR_ERR(inode);
3139 LINVRNT(osd_invariant(obj));
3147 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
3148 struct lu_attr *attr,
3149 struct dt_allocation_hint *hint,
3150 struct dt_object_format *dof,
3154 struct osd_thandle *oth;
3155 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX | S_ISGID));
3157 LASSERT(S_ISDIR(attr->la_mode));
3159 oth = container_of(th, struct osd_thandle, ot_super);
3160 LASSERT(oth->ot_handle->h_transaction != NULL);
3161 result = osd_mkfile(info, obj, mode, hint, th, attr);
3166 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
3167 struct lu_attr *attr,
3168 struct dt_allocation_hint *hint,
3169 struct dt_object_format *dof,
3173 struct osd_thandle *oth;
3174 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
3176 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
3178 LASSERT(S_ISREG(attr->la_mode));
3180 oth = container_of(th, struct osd_thandle, ot_super);
3181 LASSERT(oth->ot_handle->h_transaction != NULL);
3183 result = osd_mkfile(info, obj, mode, hint, th, attr);
3185 LASSERT(obj->oo_inode != NULL);
3186 if (feat->dif_flags & DT_IND_VARKEY)
3187 result = iam_lvar_create(obj->oo_inode,
3188 feat->dif_keysize_max,
3190 feat->dif_recsize_max,
3193 result = iam_lfix_create(obj->oo_inode,
3194 feat->dif_keysize_max,
3196 feat->dif_recsize_max,
3202 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
3203 struct lu_attr *attr,
3204 struct dt_allocation_hint *hint,
3205 struct dt_object_format *dof,
3208 LASSERT(S_ISREG(attr->la_mode));
3209 return osd_mkfile(info, obj, (attr->la_mode &
3210 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th,
3214 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
3215 struct lu_attr *attr,
3216 struct dt_allocation_hint *hint,
3217 struct dt_object_format *dof,
3220 LASSERT(S_ISLNK(attr->la_mode));
3221 return osd_mkfile(info, obj, (attr->la_mode &
3222 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th,
3226 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
3227 struct lu_attr *attr,
3228 struct dt_allocation_hint *hint,
3229 struct dt_object_format *dof,
3232 umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
3235 LINVRNT(osd_invariant(obj));
3236 LASSERT(obj->oo_inode == NULL);
3237 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
3238 S_ISFIFO(mode) || S_ISSOCK(mode));
3240 result = osd_mkfile(info, obj, mode, hint, th, attr);
3242 LASSERT(obj->oo_inode != NULL);
3244 * This inode should be marked dirty for i_rdev. Currently
3245 * that is done in the osd_attr_init().
3247 init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
3250 LINVRNT(osd_invariant(obj));
3254 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
3256 struct dt_allocation_hint *hint,
3257 struct dt_object_format *dof,
3260 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
3262 osd_obj_type_f result;
3278 result = osd_mk_index;
3289 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
3290 struct dt_object *parent, struct dt_object *child,
3295 ah->dah_parent = parent;
3296 ah->dah_mode = child_mode;
3298 if (parent != NULL && !dt_object_remote(parent)) {
3299 /* will help to find FID->ino at dt_insert("..") */
3300 struct osd_object *pobj = osd_dt_obj(parent);
3302 osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
3306 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
3307 struct lu_attr *attr, struct dt_object_format *dof)
3309 struct inode *inode = obj->oo_inode;
3310 __u64 valid = attr->la_valid;
3313 attr->la_valid &= ~(LA_TYPE | LA_MODE);
3315 if (dof->dof_type != DFT_NODE)
3316 attr->la_valid &= ~LA_RDEV;
3317 if ((valid & LA_ATIME) && (attr->la_atime == inode->i_atime.tv_sec))
3318 attr->la_valid &= ~LA_ATIME;
3319 if ((valid & LA_CTIME) && (attr->la_ctime == inode->i_ctime.tv_sec))
3320 attr->la_valid &= ~LA_CTIME;
3321 if ((valid & LA_MTIME) && (attr->la_mtime == inode->i_mtime.tv_sec))
3322 attr->la_valid &= ~LA_MTIME;
3324 result = osd_quota_transfer(inode, attr);
3328 if (attr->la_valid != 0) {
3329 result = osd_inode_setattr(info->oti_env, inode, attr);
3331 * The osd_inode_setattr() should always succeed here. The
3332 * only error that could be returned is EDQUOT when we are
3333 * trying to change the UID or GID of the inode. However, this
3334 * should not happen since quota enforcement is no longer
3335 * enabled on ldiskfs (lquota takes care of it).
3337 LASSERTF(result == 0, "%d\n", result);
3338 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3341 attr->la_valid = valid;
3345 * Helper function for osd_create()
3347 * \retval 0, on success
3349 static int __osd_create(struct osd_thread_info *info, struct osd_object *obj,
3350 struct lu_attr *attr, struct dt_allocation_hint *hint,
3351 struct dt_object_format *dof, struct thandle *th)
3356 osd_trans_exec_op(info->oti_env, th, OSD_OT_CREATE);
3358 /* we drop umask so that permissions we pass are not affected */
3359 umask = current->fs->umask;
3360 current->fs->umask = 0;
3362 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
3364 if (likely(obj->oo_inode != NULL)) {
3365 LASSERT(obj->oo_inode->i_state & I_NEW);
3368 * Unlock the inode before attr initialization to avoid
3369 * unnecessary dqget operations. LU-6378
3371 unlock_new_inode(obj->oo_inode);
3374 if (likely(result == 0)) {
3375 osd_attr_init(info, obj, attr, dof);
3376 osd_object_init0(obj);
3379 /* restore previous umask value */
3380 current->fs->umask = umask;
3382 osd_trans_exec_check(info->oti_env, th, OSD_OT_CREATE);
3388 * Helper function for osd_create()
3390 * \retval 0, on success
3392 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
3393 const struct lu_fid *fid, struct thandle *th)
3395 struct osd_thread_info *info = osd_oti_get(env);
3396 struct osd_inode_id *id = &info->oti_id;
3397 struct osd_device *osd = osd_obj2dev(obj);
3398 struct osd_thandle *oh;
3401 LASSERT(obj->oo_inode != NULL);
3403 oh = container_of0(th, struct osd_thandle, ot_super);
3404 LASSERT(oh->ot_handle);
3405 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3407 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
3408 rc = osd_oi_insert(info, osd, fid, id, oh->ot_handle,
3409 OI_CHECK_FLD, NULL);
3410 if (CFS_FAIL_CHECK(OBD_FAIL_OSD_DUPLICATE_MAP) && osd->od_is_ost) {
3411 struct lu_fid next_fid = *fid;
3413 /* insert next object in advance, and map to the same inode */
3415 if (next_fid.f_oid != 0) {
3416 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3417 osd_oi_insert(info, osd, &next_fid, id, oh->ot_handle,
3418 OI_CHECK_FLD, NULL);
3419 osd_trans_exec_check(env, th, OSD_OT_INSERT);
3423 osd_trans_exec_check(env, th, OSD_OT_INSERT);
3428 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
3429 u64 seq, struct lu_seq_range *range)
3431 struct seq_server_site *ss = osd_seq_site(osd);
3433 if (fid_seq_is_idif(seq)) {
3434 fld_range_set_ost(range);
3435 range->lsr_index = idif_ost_idx(seq);
3439 if (!fid_seq_in_fldb(seq)) {
3440 fld_range_set_mdt(range);
3443 * FIXME: If ss is NULL, it suppose not get lsr_index
3446 range->lsr_index = ss->ss_node_id;
3450 LASSERT(ss != NULL);
3451 fld_range_set_any(range);
3452 /* OSD will only do local fld lookup */
3453 return fld_local_lookup(env, ss->ss_server_fld, seq, range);
3456 static int osd_declare_create(const struct lu_env *env, struct dt_object *dt,
3457 struct lu_attr *attr,
3458 struct dt_allocation_hint *hint,
3459 struct dt_object_format *dof,
3460 struct thandle *handle)
3462 struct osd_thandle *oh;
3467 LASSERT(handle != NULL);
3469 oh = container_of0(handle, struct osd_thandle, ot_super);
3470 LASSERT(oh->ot_handle == NULL);
3473 * EA object consumes more credits than regular object: osd_mk_index
3474 * vs. osd_mkreg: osd_mk_index will create 2 blocks for root_node and
3475 * leaf_node, could involves the block, block bitmap, groups, GDT
3476 * change for each block, so add 4 * 2 credits in that case.
3478 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
3479 osd_dto_credits_noquota[DTO_OBJECT_CREATE] +
3480 (dof->dof_type == DFT_INDEX) ? 4 * 2 : 0);
3482 * Reuse idle OI block may cause additional one OI block
3485 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3486 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
3487 if (CFS_FAIL_CHECK(OBD_FAIL_OSD_DUPLICATE_MAP))
3488 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3489 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
3491 /* will help to find FID->ino mapping at dt_insert() */
3492 rc = osd_idc_find_and_init(env, osd_obj2dev(osd_dt_obj(dt)),
3500 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid,
3501 attr->la_projid, 1, oh, osd_dt_obj(dt),
3502 NULL, OSD_QID_INODE);
3510 * Called to destroy on-disk representation of the object
3512 * Concurrency: must be locked
3514 static int osd_declare_destroy(const struct lu_env *env, struct dt_object *dt,
3517 struct osd_object *obj = osd_dt_obj(dt);
3518 struct inode *inode = obj->oo_inode;
3519 struct osd_thandle *oh;
3527 oh = container_of0(th, struct osd_thandle, ot_super);
3528 LASSERT(oh->ot_handle == NULL);
3530 osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
3531 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
3533 /* For removing agent entry */
3534 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu))
3535 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
3538 * Recycle idle OI leaf may cause additional three OI blocks
3541 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3542 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3543 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
3544 /* one less inode */
3545 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3546 i_projid_read(inode), -1, oh, obj, NULL,
3550 /* data to be truncated */
3551 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3552 i_projid_read(inode), 0, oh, obj, NULL,
3558 * will help to find FID->ino when this object is being
3561 rc = osd_idc_find_and_init(env, osd_obj2dev(obj), obj);
3566 static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
3569 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3570 struct osd_object *obj = osd_dt_obj(dt);
3571 struct inode *inode = obj->oo_inode;
3572 struct osd_device *osd = osd_obj2dev(obj);
3573 struct osd_thandle *oh;
3578 oh = container_of0(th, struct osd_thandle, ot_super);
3579 LASSERT(oh->ot_handle);
3581 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
3583 if (unlikely(fid_is_acct(fid)))
3586 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu)) {
3587 result = osd_delete_from_remote_parent(env, osd, obj, oh, true);
3589 CERROR("%s: remove agent entry "DFID": rc = %d\n",
3590 osd_name(osd), PFID(fid), result);
3593 if (S_ISDIR(inode->i_mode)) {
3594 LASSERT(osd_inode_unlinked(inode) || inode->i_nlink == 1 ||
3595 inode->i_nlink == 2);
3597 spin_lock(&obj->oo_guard);
3599 spin_unlock(&obj->oo_guard);
3600 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3603 osd_trans_exec_op(env, th, OSD_OT_DESTROY);
3605 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
3607 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3608 result = osd_oi_delete(osd_oti_get(env), osd, fid,
3609 oh->ot_handle, OI_CHECK_FLD);
3611 osd_trans_exec_check(env, th, OSD_OT_DESTROY);
3612 /* XXX: add to ext3 orphan list */
3613 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
3615 /* not needed in the cache anymore */
3616 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
3617 obj->oo_destroyed = 1;
3623 * Put the fid into lustre_mdt_attrs, and then place the structure
3624 * inode's ea. This fid should not be altered during the life time
3627 * \retval +ve, on success
3628 * \retval -ve, on error
3630 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
3632 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
3633 const struct lu_fid *fid, __u32 compat, __u32 incompat)
3635 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
3636 struct lustre_mdt_attrs *lma = &loa->loa_lma;
3641 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INLMA))
3644 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_OST_EA_FID_SET))
3647 lustre_loa_init(loa, fid, compat, incompat);
3648 lustre_loa_swab(loa, false);
3651 * For the OST device with 256 bytes inode size by default,
3652 * the PFID EA will be stored together with LMA EA to avoid
3653 * performance trouble. Otherwise the PFID EA can be stored
3654 * independently. LU-8998
3656 if ((compat & LMAC_FID_ON_OST) &&
3657 LDISKFS_INODE_SIZE(inode->i_sb) <= 256)
3658 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3659 sizeof(*loa), XATTR_CREATE);
3661 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3662 sizeof(*lma), XATTR_CREATE);
3664 * LMA may already exist, but we need to check that all the
3665 * desired compat/incompat flags have been added.
3667 if (unlikely(rc == -EEXIST)) {
3668 rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
3669 XATTR_NAME_LMA, (void *)loa, sizeof(*loa));
3673 if (rc < sizeof(*lma))
3676 lustre_loa_swab(loa, true);
3677 if (lu_fid_eq(fid, &lma->lma_self_fid) &&
3678 ((compat == 0 && incompat == 0) ||
3679 (!(~lma->lma_compat & compat) &&
3680 !(~lma->lma_incompat & incompat))))
3683 lma->lma_self_fid = *fid;
3684 lma->lma_compat |= compat;
3685 lma->lma_incompat |= incompat;
3686 if (rc == sizeof(*lma)) {
3687 lustre_lma_swab(lma);
3688 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3689 sizeof(*lma), XATTR_REPLACE);
3691 lustre_loa_swab(loa, false);
3692 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3693 sizeof(*loa), XATTR_REPLACE);
3701 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
3702 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
3703 * To have compatilibility with 1.8 ldiskfs driver we need to have
3704 * magic number at start of fid data.
3705 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
3708 static void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
3709 const struct lu_fid *fid)
3711 if (!fid_is_namespace_visible(fid) ||
3712 OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
3713 param->edp_magic = 0;
3717 param->edp_magic = LDISKFS_LUFID_MAGIC;
3718 param->edp_len = sizeof(struct lu_fid) + 1;
3719 fid_cpu_to_be((struct lu_fid *)param->edp_data, (struct lu_fid *)fid);
3723 * Try to read the fid from inode ea into dt_rec.
3725 * \param fid object fid.
3727 * \retval 0 on success
3729 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
3730 __u32 ino, struct lu_fid *fid,
3731 struct osd_inode_id *id)
3733 struct osd_thread_info *info = osd_oti_get(env);
3734 struct inode *inode;
3738 osd_id_gen(id, ino, OSD_OII_NOGEN);
3739 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
3741 RETURN(PTR_ERR(inode));
3747 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
3749 struct inode *parent_dir,
3750 const struct lu_fid *dot_fid,
3751 const struct lu_fid *dot_dot_fid,
3752 struct osd_thandle *oth)
3754 struct ldiskfs_dentry_param *dot_ldp;
3755 struct ldiskfs_dentry_param *dot_dot_ldp;
3756 __u32 saved_nlink = dir->i_nlink;
3759 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
3760 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
3762 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3763 dot_ldp->edp_magic = 0;
3765 rc = ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
3766 dir, dot_ldp, dot_dot_ldp);
3768 * The ldiskfs_add_dot_dotdot() may dir->i_nlink as 2, then
3769 * the subseqent ref_add() will increase the dir->i_nlink
3770 * as 3. That is incorrect for new created directory.
3772 * It looks like hack, because we want to make the OSD API
3773 * to be order-independent for new created directory object
3774 * between dt_insert(..) and ref_add() operations.
3776 * Here, we only restore the in-RAM dir-inode's nlink attr,
3777 * becuase if the nlink attr is not 2, then there will be
3778 * ref_add() called following the dt_insert(..), such call
3779 * will make both the in-RAM and on-disk dir-inode's nlink
3780 * attr to be set as 2. LU-7447
3782 set_nlink(dir, saved_nlink);
3787 * Create an local agent inode for remote entry
3789 static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
3790 struct osd_device *osd,
3791 struct osd_object *pobj,
3792 const struct lu_fid *fid,
3796 struct osd_thread_info *info = osd_oti_get(env);
3797 struct inode *local;
3798 struct osd_thandle *oh;
3804 oh = container_of(th, struct osd_thandle, ot_super);
3805 LASSERT(oh->ot_handle->h_transaction != NULL);
3807 local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, type,
3809 if (IS_ERR(local)) {
3810 CERROR("%s: create local error %d\n", osd_name(osd),
3811 (int)PTR_ERR(local));
3816 * restore i_gid in case S_ISGID is set, we will inherit S_ISGID and set
3817 * correct gid on remote file, not agent here
3819 local->i_gid = current_fsgid();
3820 ldiskfs_set_inode_state(local, LDISKFS_STATE_LUSTRE_NOSCRUB);
3822 /* e2fsck doesn't like empty symlinks. Store remote FID as symlink.
3823 * That gives e2fsck something to look at and be happy, and allows
3824 * debugging if we need to determine where this symlink came from.
3826 if (S_ISLNK(type)) {
3827 BUILD_BUG_ON(LDISKFS_N_BLOCKS * 4 < FID_LEN + 1);
3828 rc = snprintf((char *)LDISKFS_I(local)->i_data,
3829 LDISKFS_N_BLOCKS * 4, DFID, PFID(fid));
3831 i_size_write(local, rc);
3832 LDISKFS_I(local)->i_disksize = rc;
3834 unlock_new_inode(local);
3836 /* Agent inode should not have project ID */
3837 #ifdef HAVE_PROJECT_QUOTA
3838 if (LDISKFS_I(pobj->oo_inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
3839 i_projid_read(pobj->oo_inode) != 0) {
3840 rc = osd_transfer_project(local, 0);
3842 CERROR("%s: quota transfer failed: rc = %d. Is project "
3843 "quota enforcement enabled on the ldiskfs "
3844 "filesystem?\n", local->i_sb->s_id, rc);
3845 RETURN(ERR_PTR(rc));
3849 /* Set special LMA flag for local agent inode */
3850 rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
3852 CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
3853 osd_name(osd), PFID(fid), rc);
3854 RETURN(ERR_PTR(rc));
3860 rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
3861 lu_object_fid(&pobj->oo_dt.do_lu),
3864 CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
3865 osd_name(osd), PFID(fid), rc);
3866 RETURN(ERR_PTR(rc));
3873 * when direntry is deleted, we have to take care of possible agent inode
3874 * referenced by that. unfortunately we can't do this at that point:
3875 * iget() within a running transaction leads to deadlock and we better do
3876 * not call that every delete declaration to save performance. so we put
3877 * a potention agent inode on a list and process that once the transaction
3878 * is over. Notice it's not any worse in terms of real orphans as regular
3879 * object destroy doesn't put inodes on the on-disk orphan list. this should
3880 * be addressed separately
3882 static int osd_schedule_agent_inode_removal(const struct lu_env *env,
3883 struct osd_thandle *oh,
3886 struct osd_device *osd = osd_dt_dev(oh->ot_super.th_dev);
3887 struct osd_obj_orphan *oor;
3894 oor->oor_env = (struct lu_env *)env;
3895 spin_lock(&osd->od_osfs_lock);
3896 list_add(&oor->oor_list, &osd->od_orphan_list);
3897 spin_unlock(&osd->od_osfs_lock);
3899 oh->ot_remove_agents = 1;
3905 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
3906 struct osd_device *osd)
3908 struct osd_thread_info *info = osd_oti_get(env);
3909 struct osd_obj_orphan *oor, *tmp;
3910 struct osd_inode_id id;
3911 struct list_head list;
3912 struct inode *inode;
3917 INIT_LIST_HEAD(&list);
3919 spin_lock(&osd->od_osfs_lock);
3920 list_for_each_entry_safe(oor, tmp, &osd->od_orphan_list, oor_list) {
3921 if (oor->oor_env == env) {
3922 list_del(&oor->oor_list);
3923 list_add(&oor->oor_list, &list);
3926 spin_unlock(&osd->od_osfs_lock);
3928 list_for_each_entry_safe(oor, tmp, &list, oor_list) {
3932 list_del(&oor->oor_list);
3935 osd_id_gen(&id, ino, OSD_OII_NOGEN);
3936 inode = osd_iget_fid(info, osd, &id, &fid);
3940 if (!osd_remote_fid(env, osd, &fid)) {
3945 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC, 1);
3947 mark_inode_dirty(inode);
3948 ldiskfs_journal_stop(jh);
3956 * OSD layer object create function for OST objects (b=11826).
3958 * The FID is inserted into inode xattr here.
3960 * \retval 0, on success
3961 * \retval -ve, on error
3963 static int osd_create(const struct lu_env *env, struct dt_object *dt,
3964 struct lu_attr *attr, struct dt_allocation_hint *hint,
3965 struct dt_object_format *dof, struct thandle *th)
3967 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3968 struct osd_object *obj = osd_dt_obj(dt);
3969 struct osd_thread_info *info = osd_oti_get(env);
3970 int result, on_ost = 0;
3974 if (dt_object_exists(dt))
3977 LINVRNT(osd_invariant(obj));
3978 LASSERT(!dt_object_remote(dt));
3979 LASSERT(osd_is_write_locked(env, obj));
3980 LASSERT(th != NULL);
3982 if (unlikely(fid_is_acct(fid)))
3984 * Quota files can't be created from the kernel any more,
3985 * 'tune2fs -O quota' will take care of creating them
3989 result = __osd_create(info, obj, attr, hint, dof, th);
3991 if (fid_is_idif(fid) &&
3992 !osd_dev(dt->do_lu.lo_dev)->od_index_in_idif) {
3993 struct lu_fid *tfid = &info->oti_fid;
3994 struct ost_id *oi = &info->oti_ostid;
3996 fid_to_ostid(fid, oi);
3997 ostid_to_fid(tfid, oi, 0);
3999 result = osd_ea_fid_set(info, obj->oo_inode, tfid,
4000 LMAC_FID_ON_OST, 0);
4002 on_ost = fid_is_on_ost(info, osd_obj2dev(obj),
4004 result = osd_ea_fid_set(info, obj->oo_inode, fid,
4005 on_ost ? LMAC_FID_ON_OST : 0,
4008 if (obj->oo_dt.do_body_ops == &osd_body_ops_new)
4009 obj->oo_dt.do_body_ops = &osd_body_ops;
4012 if (!result && !CFS_FAIL_CHECK(OBD_FAIL_OSD_NO_OI_ENTRY))
4013 result = __osd_oi_insert(env, obj, fid, th);
4016 * a small optimization - dt_insert() isn't usually applied
4017 * to OST objects, so we don't need to cache OI mapping for
4020 if (result == 0 && on_ost == 0) {
4021 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4023 result = osd_idc_find_and_init(env, osd, obj);
4024 LASSERT(result == 0);
4027 LASSERT(ergo(result == 0,
4028 dt_object_exists(dt) && !dt_object_remote(dt)));
4029 LINVRNT(osd_invariant(obj));
4033 static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
4034 struct thandle *handle)
4036 struct osd_thandle *oh;
4038 /* it's possible that object doesn't exist yet */
4039 LASSERT(handle != NULL);
4041 oh = container_of0(handle, struct osd_thandle, ot_super);
4042 LASSERT(oh->ot_handle == NULL);
4044 osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
4045 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
4047 osd_idc_find_and_init(env, osd_dev(dt->do_lu.lo_dev), osd_dt_obj(dt));
4053 * Concurrency: @dt is write locked.
4055 static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
4058 struct osd_object *obj = osd_dt_obj(dt);
4059 struct inode *inode = obj->oo_inode;
4060 struct osd_thandle *oh;
4063 if (!dt_object_exists(dt) || obj->oo_destroyed)
4066 LINVRNT(osd_invariant(obj));
4067 LASSERT(!dt_object_remote(dt));
4068 LASSERT(osd_is_write_locked(env, obj));
4069 LASSERT(th != NULL);
4071 oh = container_of0(th, struct osd_thandle, ot_super);
4072 LASSERT(oh->ot_handle != NULL);
4074 osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
4076 CDEBUG(D_INODE, DFID" increase nlink %d\n",
4077 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
4079 * The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
4080 * (65000) subdirectories by storing "1" in i_nlink if the link count
4081 * would otherwise overflow. Directory tranversal tools understand
4082 * that (st_nlink == 1) indicates that the filesystem dose not track
4083 * hard links count on the directory, and will not abort subdirectory
4084 * scanning early once (st_nlink - 2) subdirs have been found.
4086 * This also has to properly handle the case of inodes with nlink == 0
4087 * in case they are being linked into the PENDING directory
4089 spin_lock(&obj->oo_guard);
4090 if (unlikely(inode->i_nlink == 0))
4091 /* inc_nlink from 0 may cause WARN_ON */
4092 set_nlink(inode, 1);
4094 ldiskfs_inc_count(oh->ot_handle, inode);
4095 if (!S_ISDIR(inode->i_mode))
4096 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
4098 spin_unlock(&obj->oo_guard);
4100 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4101 LINVRNT(osd_invariant(obj));
4103 osd_trans_exec_check(env, th, OSD_OT_REF_ADD);
4108 static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
4109 struct thandle *handle)
4111 struct osd_thandle *oh;
4113 if (!dt_object_exists(dt))
4116 LASSERT(!dt_object_remote(dt));
4117 LASSERT(handle != NULL);
4119 oh = container_of0(handle, struct osd_thandle, ot_super);
4120 LASSERT(oh->ot_handle == NULL);
4122 osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
4123 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
4129 * Concurrency: @dt is write locked.
4131 static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
4134 struct osd_object *obj = osd_dt_obj(dt);
4135 struct inode *inode = obj->oo_inode;
4136 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4137 struct osd_thandle *oh;
4139 if (!dt_object_exists(dt))
4142 LINVRNT(osd_invariant(obj));
4143 LASSERT(!dt_object_remote(dt));
4144 LASSERT(osd_is_write_locked(env, obj));
4145 LASSERT(th != NULL);
4147 oh = container_of0(th, struct osd_thandle, ot_super);
4148 LASSERT(oh->ot_handle != NULL);
4150 osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
4152 spin_lock(&obj->oo_guard);
4154 * That can be result of upgrade from old Lustre version and
4155 * applied only to local files. Just skip this ref_del call.
4156 * ext4_unlink() only treats this as a warning, don't LASSERT here.
4158 if (inode->i_nlink == 0) {
4159 CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
4160 D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
4161 ", maybe an upgraded file? (LU-3915)\n",
4162 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
4163 spin_unlock(&obj->oo_guard);
4167 CDEBUG(D_INODE, DFID" decrease nlink %d\n",
4168 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
4170 ldiskfs_dec_count(oh->ot_handle, inode);
4171 spin_unlock(&obj->oo_guard);
4173 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4174 LINVRNT(osd_invariant(obj));
4176 osd_trans_exec_check(env, th, OSD_OT_REF_DEL);
4182 * Concurrency: @dt is read locked.
4184 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
4185 struct lu_buf *buf, const char *name)
4187 struct osd_object *obj = osd_dt_obj(dt);
4188 struct inode *inode = obj->oo_inode;
4189 struct osd_thread_info *info = osd_oti_get(env);
4190 struct dentry *dentry = &info->oti_obj_dentry;
4191 bool cache_xattr = false;
4196 /* version get is not real XATTR but uses xattr API */
4197 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4198 dt_obj_version_t *ver = buf->lb_buf;
4201 * for version we are just using xattr API but change inode
4204 if (buf->lb_len == 0)
4205 return sizeof(dt_obj_version_t);
4207 if (buf->lb_len < sizeof(dt_obj_version_t))
4210 CDEBUG(D_INODE, "Get version %#llx for inode %lu\n",
4211 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
4213 *ver = LDISKFS_I(inode)->i_fs_version;
4215 return sizeof(dt_obj_version_t);
4218 if (!dt_object_exists(dt))
4221 LASSERT(!dt_object_remote(dt));
4222 LASSERT(inode->i_op != NULL);
4223 #ifdef HAVE_IOP_XATTR
4224 LASSERT(inode->i_op->getxattr != NULL);
4227 if (strcmp(name, XATTR_NAME_LOV) == 0 ||
4228 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0)
4232 rc = osd_oxc_get(obj, name, buf);
4237 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
4238 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4239 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4240 struct filter_fid *ff;
4241 struct ost_layout *ol;
4243 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4247 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
4250 if (buf->lb_len == 0 || !buf->lb_buf)
4253 if (buf->lb_len < rc)
4257 ol = &ff->ff_layout;
4258 ol->ol_stripe_count = cpu_to_le32(loa->loa_parent_fid.f_ver >>
4259 PFID_STRIPE_IDX_BITS);
4260 ol->ol_stripe_size = cpu_to_le32(loa->loa_stripe_size);
4261 loa->loa_parent_fid.f_ver &= PFID_STRIPE_COUNT_MASK;
4262 fid_cpu_to_le(&ff->ff_parent, &loa->loa_parent_fid);
4263 if (lma->lma_compat & LMAC_COMP_INFO) {
4264 ol->ol_comp_start = cpu_to_le64(loa->loa_comp_start);
4265 ol->ol_comp_end = cpu_to_le64(loa->loa_comp_end);
4266 ol->ol_comp_id = cpu_to_le32(loa->loa_comp_id);
4268 ol->ol_comp_start = 0;
4269 ol->ol_comp_end = 0;
4273 rc = __osd_xattr_get(inode, dentry, name,
4274 buf->lb_buf, buf->lb_len);
4278 if (rc == -ENOENT || rc == -ENODATA)
4279 osd_oxc_add(obj, name, NULL, 0);
4280 else if (rc > 0 && buf->lb_buf != NULL)
4281 osd_oxc_add(obj, name, buf->lb_buf, rc);
4287 static int osd_declare_xattr_set(const struct lu_env *env,
4288 struct dt_object *dt,
4289 const struct lu_buf *buf, const char *name,
4290 int fl, struct thandle *handle)
4292 struct osd_thandle *oh;
4294 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4296 LASSERT(handle != NULL);
4298 oh = container_of0(handle, struct osd_thandle, ot_super);
4299 LASSERT(oh->ot_handle == NULL);
4301 if (strcmp(name, XATTR_NAME_LMA) == 0) {
4303 * For non-upgrading case, the LMA is set first and
4304 * usually fit inode. But for upgrade case, the LMA
4305 * may be in another separated EA block.
4307 if (dt_object_exists(dt)) {
4308 if (fl == LU_XATTR_REPLACE)
4313 } else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4315 } else if (strcmp(name, XATTR_NAME_FID) == 0) {
4316 /* We may need to delete the old PFID EA. */
4317 credits = LDISKFS_MAXQUOTAS_DEL_BLOCKS(sb);
4318 if (fl == LU_XATTR_REPLACE)
4324 * If some name entry resides on remote MDT, then will create
4325 * agent entry under remote parent. On the other hand, if the
4326 * remote entry will be removed, then related agent entry may
4327 * need to be removed from the remote parent. So there may be
4328 * kinds of cases, let's declare enough credits. The credits
4329 * for create agent entry is enough for remove case.
4331 if (strcmp(name, XATTR_NAME_LINK) == 0) {
4332 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
4333 if (dt_object_exists(dt))
4334 credits += 1; /* For updating LMA */
4338 credits += osd_dto_credits_noquota[DTO_XATTR_SET];
4343 if (buf->lb_buf == NULL && dt_object_exists(dt)) {
4345 * learn xattr size from osd_xattr_get if
4346 * attribute has not been read yet
4348 buflen = __osd_xattr_get(
4349 osd_dt_obj(dt)->oo_inode,
4350 &osd_oti_get(env)->oti_obj_dentry,
4355 buflen = buf->lb_len;
4358 if (buflen > sb->s_blocksize) {
4359 credits += osd_calc_bkmap_credits(
4361 (buflen + sb->s_blocksize - 1) >>
4362 sb->s_blocksize_bits);
4366 * xattr set may involve inode quota change, reserve credits for
4367 * dquot_initialize()
4369 credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4372 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
4377 static int osd_xattr_set_pfid(const struct lu_env *env, struct osd_object *obj,
4378 const struct lu_buf *buf, int fl,
4379 struct thandle *handle)
4381 struct osd_thread_info *info = osd_oti_get(env);
4382 struct dentry *dentry = &info->oti_obj_dentry;
4383 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4384 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4385 struct inode *inode = obj->oo_inode;
4386 struct filter_fid *ff = buf->lb_buf;
4387 struct ost_layout *ol = &ff->ff_layout;
4388 int flags = XATTR_REPLACE;
4393 if (buf->lb_len != sizeof(*ff) && buf->lb_len != sizeof(struct lu_fid))
4396 rc = osd_get_lma(info, inode, dentry, loa);
4397 if (rc == -ENODATA) {
4398 /* Usually for upgarding from old device */
4399 lustre_loa_init(loa, lu_object_fid(&obj->oo_dt.do_lu),
4400 LMAC_FID_ON_OST, 0);
4401 flags = XATTR_CREATE;
4406 if (!rc && lma->lma_compat & LMAC_STRIPE_INFO) {
4407 if ((fl & LU_XATTR_CREATE) && !(fl & LU_XATTR_REPLACE))
4410 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256) {
4411 /* Separate PFID EA from LMA */
4412 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4413 lustre_lma_swab(lma);
4414 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4415 sizeof(*lma), XATTR_REPLACE);
4417 obj->oo_pfid_in_lma = 0;
4418 rc = LU_XATTR_CREATE;
4424 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256)
4428 * Old client does not send stripe information,
4429 * then store the PFID EA on disk separatedly.
4431 if (unlikely(buf->lb_len == sizeof(struct lu_fid) ||
4432 ol->ol_stripe_size == 0))
4435 /* Remove old PFID EA entry firstly. */
4436 dquot_initialize(inode);
4437 rc = osd_removexattr(dentry, inode, XATTR_NAME_FID);
4438 if (rc == -ENODATA) {
4439 if ((fl & LU_XATTR_REPLACE) && !(fl & LU_XATTR_CREATE))
4446 fid_le_to_cpu(&loa->loa_parent_fid, &ff->ff_parent);
4447 if (likely(ol->ol_stripe_size != 0)) {
4448 loa->loa_parent_fid.f_ver |= le32_to_cpu(ol->ol_stripe_count) <<
4449 PFID_STRIPE_IDX_BITS;
4450 loa->loa_stripe_size = le32_to_cpu(ol->ol_stripe_size);
4451 lma->lma_compat |= LMAC_STRIPE_INFO;
4452 if (ol->ol_comp_id != 0) {
4453 loa->loa_comp_id = le32_to_cpu(ol->ol_comp_id);
4454 loa->loa_comp_start = le64_to_cpu(ol->ol_comp_start);
4455 loa->loa_comp_end = le64_to_cpu(ol->ol_comp_end);
4456 lma->lma_compat |= LMAC_COMP_INFO;
4460 lustre_loa_swab(loa, false);
4462 /* Store the PFID EA inside LMA. */
4463 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa, sizeof(*loa),
4466 obj->oo_pfid_in_lma = 1;
4472 * In DNE environment, the object (in spite of regular file or directory)
4473 * and its name entry may reside on different MDTs. Under such case, we will
4474 * create an agent entry on the MDT where the object resides. The agent entry
4475 * references the object locally, that makes the object to be visible to the
4476 * userspace when mounted as 'ldiskfs' directly. Then the userspace tools,
4477 * such as 'tar' can handle the object properly.
4479 * We handle the agent entry during set linkEA that is the common interface
4480 * for both regular file and directroy, can handle kinds of cases, such as
4481 * create/link/unlink/rename, and so on.
4483 * NOTE: we can NOT do that when ea_{insert,delete} that is only for directory.
4485 * XXX: There are two known issues:
4486 * 1. For one object, we will create at most one agent entry even if there
4487 * may be more than one cross-MDTs hard links on the object. So the local
4488 * e2fsck may claim that the object's nlink is larger than the name entries
4489 * that reference such inode. And in further, the e2fsck will fix the nlink
4490 * attribute to match the local references. Then it will cause the object's
4491 * nlink attribute to be inconsistent with the global references. it is bad
4492 * but not fatal. The ref_del() can handle the zero-referenced case. On the
4493 * other hand, the global namespace LFSCK can repair the object's attribute
4494 * according to the linkEA.
4495 * 2. There may be too many hard links on the object as to its linkEA overflow,
4496 * then the linkEA entry for cross-MDTs reference may be discarded. If such
4497 * case happened, then at this point, we do not know whether there are some
4498 * cross-MDTs reference. But there are local references, it guarantees that
4499 * object is visible to userspace when mounted as 'ldiskfs'. That is enough.
4501 static int osd_xattr_handle_linkea(const struct lu_env *env,
4502 struct osd_device *osd,
4503 struct osd_object *obj,
4504 const struct lu_buf *buf,
4505 struct thandle *handle)
4507 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
4508 struct lu_fid *tfid = &osd_oti_get(env)->oti_fid3;
4509 struct linkea_data ldata = { .ld_buf = (struct lu_buf *)buf };
4510 struct lu_name tmpname;
4511 struct osd_thandle *oh;
4513 bool remote = false;
4517 oh = container_of0(handle, struct osd_thandle, ot_super);
4518 LASSERT(oh->ot_handle != NULL);
4520 rc = linkea_init_with_rec(&ldata);
4522 linkea_first_entry(&ldata);
4523 while (ldata.ld_lee != NULL && !remote) {
4524 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen,
4526 if (osd_remote_fid(env, osd, tfid) > 0)
4529 linkea_next_entry(&ldata);
4531 } else if (rc == -ENODATA) {
4537 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu) && !remote) {
4538 rc = osd_delete_from_remote_parent(env, osd, obj, oh, false);
4540 CERROR("%s: failed to remove agent entry for "DFID
4541 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4542 } else if (!lu_object_has_agent_entry(&obj->oo_dt.do_lu) && remote) {
4543 rc = osd_add_to_remote_parent(env, osd, obj, oh);
4545 CERROR("%s: failed to create agent entry for "DFID
4546 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4553 * Concurrency: @dt is write locked.
4555 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
4556 const struct lu_buf *buf, const char *name, int fl,
4557 struct thandle *handle)
4559 struct osd_object *obj = osd_dt_obj(dt);
4560 struct osd_device *osd = osd_obj2dev(obj);
4561 struct inode *inode = obj->oo_inode;
4562 struct osd_thread_info *info = osd_oti_get(env);
4572 /* version set is not real XATTR */
4573 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4574 dt_obj_version_t *version = buf->lb_buf;
4577 * for version we are just using xattr API but change inode
4580 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
4582 CDEBUG(D_INODE, "Set version %#llx (old %#llx) for inode %lu\n",
4583 *version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
4585 LDISKFS_I(inode)->i_fs_version = *version;
4587 * Version is set after all inode operations are finished,
4588 * so we should mark it dirty here
4590 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
4595 CDEBUG(D_INODE, DFID" set xattr '%s' with size %zu\n",
4596 PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
4599 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4602 * For the OST device with 256 bytes inode size by default,
4603 * the PFID EA will be stored together with LMA EA to avoid
4604 * performance trouble. Otherwise the PFID EA can be stored
4605 * independently. LU-8998
4607 if (strcmp(name, XATTR_NAME_FID) == 0 && osd->od_is_ost &&
4608 (LDISKFS_INODE_SIZE(inode->i_sb) <= 256 || obj->oo_pfid_in_lma)) {
4609 LASSERT(buf->lb_buf);
4611 fl = osd_xattr_set_pfid(env, obj, buf, fl, handle);
4614 } else if (strcmp(name, XATTR_NAME_LMV) == 0) {
4615 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4616 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4618 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4622 lma->lma_incompat |= LMAI_STRIPED;
4623 lustre_lma_swab(lma);
4624 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4625 sizeof(*lma), XATTR_REPLACE);
4628 } else if (strcmp(name, XATTR_NAME_LINK) == 0) {
4629 LASSERT(!osd->od_is_ost);
4631 rc = osd_xattr_handle_linkea(env, osd, obj, buf, handle);
4636 if (fl & LU_XATTR_REPLACE)
4637 fs_flags |= XATTR_REPLACE;
4639 if (fl & LU_XATTR_CREATE)
4640 fs_flags |= XATTR_CREATE;
4642 rc = __osd_xattr_set(info, inode, name, buf->lb_buf, len, fs_flags);
4643 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4646 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4647 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4648 osd_oxc_add(obj, name, buf->lb_buf, buf->lb_len);
4654 * Concurrency: @dt is read locked.
4656 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
4657 const struct lu_buf *buf)
4659 struct osd_object *obj = osd_dt_obj(dt);
4660 struct inode *inode = obj->oo_inode;
4661 struct osd_thread_info *info = osd_oti_get(env);
4662 struct dentry *dentry = &info->oti_obj_dentry;
4664 if (!dt_object_exists(dt))
4667 LASSERT(!dt_object_remote(dt));
4668 LASSERT(inode->i_op != NULL);
4669 LASSERT(inode->i_op->listxattr != NULL);
4671 dentry->d_inode = inode;
4672 dentry->d_sb = inode->i_sb;
4673 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
4676 static int osd_declare_xattr_del(const struct lu_env *env,
4677 struct dt_object *dt, const char *name,
4678 struct thandle *handle)
4680 struct osd_thandle *oh;
4681 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4683 LASSERT(!dt_object_remote(dt));
4684 LASSERT(handle != NULL);
4686 oh = container_of0(handle, struct osd_thandle, ot_super);
4687 LASSERT(oh->ot_handle == NULL);
4689 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
4690 osd_dto_credits_noquota[DTO_XATTR_SET]);
4692 * xattr del may involve inode quota change, reserve credits for
4693 * dquot_initialize()
4695 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4701 * Concurrency: @dt is write locked.
4703 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
4704 const char *name, struct thandle *handle)
4706 struct osd_object *obj = osd_dt_obj(dt);
4707 struct inode *inode = obj->oo_inode;
4708 struct osd_thread_info *info = osd_oti_get(env);
4709 struct dentry *dentry = &info->oti_obj_dentry;
4712 if (!dt_object_exists(dt))
4715 LASSERT(!dt_object_remote(dt));
4716 LASSERT(inode->i_op != NULL);
4717 LASSERT(handle != NULL);
4718 #ifdef HAVE_IOP_XATTR
4719 LASSERT(inode->i_op->removexattr != NULL);
4722 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4724 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
4725 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
4727 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
4728 &info->oti_ost_attrs);
4730 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
4732 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4733 lustre_lma_swab(lma);
4734 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4735 sizeof(*lma), XATTR_REPLACE);
4737 obj->oo_pfid_in_lma = 0;
4740 dquot_initialize(inode);
4741 dentry->d_inode = inode;
4742 dentry->d_sb = inode->i_sb;
4743 rc = osd_removexattr(dentry, inode, name);
4746 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4749 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4750 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4751 osd_oxc_del(obj, name);
4756 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
4757 __u64 start, __u64 end)
4759 struct osd_object *obj = osd_dt_obj(dt);
4760 struct inode *inode = obj->oo_inode;
4761 struct osd_thread_info *info = osd_oti_get(env);
4762 struct dentry *dentry = &info->oti_obj_dentry;
4763 struct file *file = &info->oti_file;
4768 dentry->d_inode = inode;
4769 dentry->d_sb = inode->i_sb;
4770 file->f_path.dentry = dentry;
4771 file->f_mapping = inode->i_mapping;
4772 file->f_op = inode->i_fop;
4773 set_file_inode(file, inode);
4775 rc = vfs_fsync_range(file, start, end, 0);
4780 static int osd_invalidate(const struct lu_env *env, struct dt_object *dt)
4789 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
4790 const struct dt_index_features *feat)
4792 struct iam_descr *descr;
4794 if (osd_object_is_root(o))
4795 return feat == &dt_directory_features;
4797 LASSERT(o->oo_dir != NULL);
4799 descr = o->oo_dir->od_container.ic_descr;
4800 if (feat == &dt_directory_features) {
4801 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
4806 return feat->dif_keysize_min <= descr->id_key_size &&
4807 descr->id_key_size <= feat->dif_keysize_max &&
4808 feat->dif_recsize_min <= descr->id_rec_size &&
4809 descr->id_rec_size <= feat->dif_recsize_max &&
4810 !(feat->dif_flags & (DT_IND_VARKEY |
4811 DT_IND_VARREC | DT_IND_NONUNQ)) &&
4812 ergo(feat->dif_flags & DT_IND_UPDATE,
4813 1 /* XXX check that object (and fs) is writable */);
4817 static int osd_iam_container_init(const struct lu_env *env,
4818 struct osd_object *obj,
4819 struct osd_directory *dir)
4821 struct iam_container *bag = &dir->od_container;
4824 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
4828 result = iam_container_setup(bag);
4830 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
4832 iam_container_fini(bag);
4839 * Concurrency: no external locking is necessary.
4841 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
4842 const struct dt_index_features *feat)
4846 struct osd_object *obj = osd_dt_obj(dt);
4848 LINVRNT(osd_invariant(obj));
4850 if (osd_object_is_root(obj)) {
4851 dt->do_index_ops = &osd_index_ea_ops;
4853 } else if (feat == &dt_directory_features) {
4854 dt->do_index_ops = &osd_index_ea_ops;
4855 if (obj->oo_inode == NULL || S_ISDIR(obj->oo_inode->i_mode))
4860 } else if (unlikely(feat == &dt_otable_features)) {
4861 dt->do_index_ops = &osd_otable_ops;
4863 } else if (unlikely(feat == &dt_acct_features)) {
4864 dt->do_index_ops = &osd_acct_index_ops;
4867 } else if (!osd_has_index(obj)) {
4868 struct osd_directory *dir;
4869 struct osd_device *osd = osd_obj2dev(obj);
4870 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
4875 spin_lock(&obj->oo_guard);
4876 if (obj->oo_dir == NULL)
4880 * Concurrent thread allocated container data.
4883 spin_unlock(&obj->oo_guard);
4885 * Now, that we have container data, serialize its
4888 down_write(&obj->oo_ext_idx_sem);
4890 * recheck under lock.
4893 if (osd_has_index(obj)) {
4898 result = osd_iam_container_init(env, obj, obj->oo_dir);
4899 if (result || feat == &dt_lfsck_namespace_features ||
4900 feat == &dt_lfsck_layout_orphan_features ||
4901 feat == &dt_lfsck_layout_dangling_features)
4904 result = osd_index_register(osd, fid,
4905 feat->dif_keysize_max,
4906 feat->dif_recsize_max);
4908 CWARN("%s: failed to register index "
4910 osd_name(osd), PFID(fid), result);
4911 else if (result > 0)
4914 CDEBUG(D_LFSCK, "%s: index object "DFID
4915 " (%d/%d) registered\n",
4916 osd_name(osd), PFID(fid),
4917 (int)feat->dif_keysize_max,
4918 (int)feat->dif_recsize_max);
4921 up_write(&obj->oo_ext_idx_sem);
4929 if (result == 0 && skip_iam == 0) {
4930 if (!osd_iam_index_probe(env, obj, feat))
4933 LINVRNT(osd_invariant(obj));
4938 static int osd_otable_it_attr_get(const struct lu_env *env,
4939 struct dt_object *dt,
4940 struct lu_attr *attr)
4946 static const struct dt_object_operations osd_obj_ops = {
4947 .do_read_lock = osd_read_lock,
4948 .do_write_lock = osd_write_lock,
4949 .do_read_unlock = osd_read_unlock,
4950 .do_write_unlock = osd_write_unlock,
4951 .do_write_locked = osd_write_locked,
4952 .do_attr_get = osd_attr_get,
4953 .do_declare_attr_set = osd_declare_attr_set,
4954 .do_attr_set = osd_attr_set,
4955 .do_ah_init = osd_ah_init,
4956 .do_declare_create = osd_declare_create,
4957 .do_create = osd_create,
4958 .do_declare_destroy = osd_declare_destroy,
4959 .do_destroy = osd_destroy,
4960 .do_index_try = osd_index_try,
4961 .do_declare_ref_add = osd_declare_ref_add,
4962 .do_ref_add = osd_ref_add,
4963 .do_declare_ref_del = osd_declare_ref_del,
4964 .do_ref_del = osd_ref_del,
4965 .do_xattr_get = osd_xattr_get,
4966 .do_declare_xattr_set = osd_declare_xattr_set,
4967 .do_xattr_set = osd_xattr_set,
4968 .do_declare_xattr_del = osd_declare_xattr_del,
4969 .do_xattr_del = osd_xattr_del,
4970 .do_xattr_list = osd_xattr_list,
4971 .do_object_sync = osd_object_sync,
4972 .do_invalidate = osd_invalidate,
4975 static const struct dt_object_operations osd_obj_otable_it_ops = {
4976 .do_attr_get = osd_otable_it_attr_get,
4977 .do_index_try = osd_index_try,
4980 static int osd_index_declare_iam_delete(const struct lu_env *env,
4981 struct dt_object *dt,
4982 const struct dt_key *key,
4983 struct thandle *handle)
4985 struct osd_thandle *oh;
4987 oh = container_of0(handle, struct osd_thandle, ot_super);
4988 LASSERT(oh->ot_handle == NULL);
4990 /* Recycle may cause additional three blocks to be changed. */
4991 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
4992 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
4998 * delete a (key, value) pair from index \a dt specified by \a key
5000 * \param dt osd index object
5001 * \param key key for index
5002 * \param rec record reference
5003 * \param handle transaction handler
5006 * \retval -ve failure
5008 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
5009 const struct dt_key *key,
5010 struct thandle *handle)
5012 struct osd_thread_info *oti = osd_oti_get(env);
5013 struct osd_object *obj = osd_dt_obj(dt);
5014 struct osd_thandle *oh;
5015 struct iam_path_descr *ipd;
5016 struct iam_container *bag = &obj->oo_dir->od_container;
5021 if (!dt_object_exists(dt))
5024 LINVRNT(osd_invariant(obj));
5025 LASSERT(!dt_object_remote(dt));
5026 LASSERT(bag->ic_object == obj->oo_inode);
5027 LASSERT(handle != NULL);
5029 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
5031 ipd = osd_idx_ipd_get(env, bag);
5032 if (unlikely(ipd == NULL))
5035 oh = container_of0(handle, struct osd_thandle, ot_super);
5036 LASSERT(oh->ot_handle != NULL);
5037 LASSERT(oh->ot_handle->h_transaction != NULL);
5039 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5040 /* swab quota uid/gid provided by caller */
5041 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5042 key = (const struct dt_key *)&oti->oti_quota_id;
5045 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
5046 osd_ipd_put(env, bag, ipd);
5047 LINVRNT(osd_invariant(obj));
5048 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
5052 static int osd_index_declare_ea_delete(const struct lu_env *env,
5053 struct dt_object *dt,
5054 const struct dt_key *key,
5055 struct thandle *handle)
5057 struct osd_thandle *oh;
5058 struct inode *inode;
5063 LASSERT(!dt_object_remote(dt));
5064 LASSERT(handle != NULL);
5066 oh = container_of0(handle, struct osd_thandle, ot_super);
5067 LASSERT(oh->ot_handle == NULL);
5069 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE];
5070 osd_trans_declare_op(env, oh, OSD_OT_DELETE, credits);
5072 inode = osd_dt_obj(dt)->oo_inode;
5076 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
5077 i_projid_read(inode), 0, oh, osd_dt_obj(dt),
5082 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
5085 struct osd_fid_pack *rec;
5088 if (de->file_type & LDISKFS_DIRENT_LUFID) {
5089 rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
5090 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
5091 if (rc == 0 && unlikely(!fid_is_sane((struct lu_fid *)fid)))
5097 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
5098 const struct lu_fid *fid)
5100 struct seq_server_site *ss = osd_seq_site(osd);
5104 /* FID seqs not in FLDB, must be local seq */
5105 if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
5109 * If FLD is not being initialized yet, it only happens during the
5110 * initialization, likely during mgs initialization, and we assume
5111 * this is local FID.
5113 if (ss == NULL || ss->ss_server_fld == NULL)
5116 /* Only check the local FLDB here */
5117 if (osd_seq_exists(env, osd, fid_seq(fid)))
5123 static void osd_take_care_of_agent(const struct lu_env *env,
5124 struct osd_device *osd,
5125 struct osd_thandle *oh,
5126 struct ldiskfs_dir_entry_2 *de)
5128 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
5129 struct osd_idmap_cache *idc;
5130 int rc, schedule = 0;
5132 LASSERT(de != NULL);
5134 rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
5135 if (likely(rc == 0)) {
5136 idc = osd_idc_find_or_init(env, osd, fid);
5137 if (IS_ERR(idc) || idc->oic_remote)
5139 } else if (rc == -ENODATA) {
5141 * can't get FID, postpone to the end of the
5142 * transaction when iget() is safe
5146 CERROR("%s: can't get FID: rc = %d\n", osd_name(osd), rc);
5149 osd_schedule_agent_inode_removal(env, oh,
5150 le32_to_cpu(de->inode));
5154 * Index delete function for interoperability mode (b11826).
5155 * It will remove the directory entry added by osd_index_ea_insert().
5156 * This entry is needed to maintain name->fid mapping.
5158 * \param key, key i.e. file entry to be deleted
5160 * \retval 0, on success
5161 * \retval -ve, on error
5163 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
5164 const struct dt_key *key, struct thandle *handle)
5166 struct osd_object *obj = osd_dt_obj(dt);
5167 struct inode *dir = obj->oo_inode;
5168 struct dentry *dentry;
5169 struct osd_thandle *oh;
5170 struct ldiskfs_dir_entry_2 *de = NULL;
5171 struct buffer_head *bh;
5172 struct htree_lock *hlock = NULL;
5173 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5178 if (!dt_object_exists(dt))
5181 LINVRNT(osd_invariant(obj));
5182 LASSERT(!dt_object_remote(dt));
5183 LASSERT(handle != NULL);
5185 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
5187 oh = container_of(handle, struct osd_thandle, ot_super);
5188 LASSERT(oh->ot_handle != NULL);
5189 LASSERT(oh->ot_handle->h_transaction != NULL);
5191 dquot_initialize(dir);
5192 dentry = osd_child_dentry_get(env, obj,
5193 (char *)key, strlen((char *)key));
5195 if (obj->oo_hl_head != NULL) {
5196 hlock = osd_oti_get(env)->oti_hlock;
5197 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5198 dir, LDISKFS_HLOCK_DEL);
5200 down_write(&obj->oo_ext_idx_sem);
5203 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5206 * If this is not the ".." entry, it might be a remote DNE
5207 * entry and we need to check if the FID is for a remote
5208 * MDT. If the FID is not in the directory entry (e.g.
5209 * upgraded 1.8 filesystem without dirdata enabled) then
5210 * we need to get the FID from the LMA. For a remote directory
5211 * there HAS to be an LMA, it cannot be an IGIF inode in this
5214 * Delete the entry before the agent inode in order to
5215 * simplify error handling. At worst an error after deleting
5216 * the entry first might leak the agent inode afterward. The
5217 * reverse would need filesystem abort in case of error deleting
5218 * the entry after the agent had been removed, or leave a
5219 * dangling entry pointing at a random inode.
5221 if (strcmp((char *)key, dotdot) != 0)
5222 osd_take_care_of_agent(env, osd, oh, de);
5223 rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
5229 ldiskfs_htree_unlock(hlock);
5231 up_write(&obj->oo_ext_idx_sem);
5235 LASSERT(osd_invariant(obj));
5236 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
5241 * Lookup index for \a key and copy record to \a rec.
5243 * \param dt osd index object
5244 * \param key key for index
5245 * \param rec record reference
5247 * \retval +ve success : exact mach
5248 * \retval 0 return record with key not greater than \a key
5249 * \retval -ve failure
5251 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
5252 struct dt_rec *rec, const struct dt_key *key)
5254 struct osd_object *obj = osd_dt_obj(dt);
5255 struct iam_path_descr *ipd;
5256 struct iam_container *bag = &obj->oo_dir->od_container;
5257 struct osd_thread_info *oti = osd_oti_get(env);
5258 struct iam_iterator *it = &oti->oti_idx_it;
5259 struct iam_rec *iam_rec;
5264 if (!dt_object_exists(dt))
5267 LASSERT(osd_invariant(obj));
5268 LASSERT(!dt_object_remote(dt));
5269 LASSERT(bag->ic_object == obj->oo_inode);
5271 ipd = osd_idx_ipd_get(env, bag);
5275 /* got ipd now we can start iterator. */
5276 iam_it_init(it, bag, 0, ipd);
5278 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5279 /* swab quota uid/gid provided by caller */
5280 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5281 key = (const struct dt_key *)&oti->oti_quota_id;
5284 rc = iam_it_get(it, (struct iam_key *)key);
5286 if (S_ISDIR(obj->oo_inode->i_mode))
5287 iam_rec = (struct iam_rec *)oti->oti_ldp;
5289 iam_rec = (struct iam_rec *)rec;
5291 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
5293 if (S_ISDIR(obj->oo_inode->i_mode))
5294 osd_fid_unpack((struct lu_fid *)rec,
5295 (struct osd_fid_pack *)iam_rec);
5296 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
5297 osd_quota_unpack(obj, rec);
5302 osd_ipd_put(env, bag, ipd);
5304 LINVRNT(osd_invariant(obj));
5309 static int osd_index_declare_iam_insert(const struct lu_env *env,
5310 struct dt_object *dt,
5311 const struct dt_rec *rec,
5312 const struct dt_key *key,
5313 struct thandle *handle)
5315 struct osd_thandle *oh;
5317 LASSERT(handle != NULL);
5319 oh = container_of0(handle, struct osd_thandle, ot_super);
5320 LASSERT(oh->ot_handle == NULL);
5322 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
5323 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
5329 * Inserts (key, value) pair in \a dt index object.
5331 * \param dt osd index object
5332 * \param key key for index
5333 * \param rec record reference
5334 * \param th transaction handler
5337 * \retval -ve failure
5339 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
5340 const struct dt_rec *rec,
5341 const struct dt_key *key, struct thandle *th)
5343 struct osd_object *obj = osd_dt_obj(dt);
5344 struct iam_path_descr *ipd;
5345 struct osd_thandle *oh;
5346 struct iam_container *bag;
5347 struct osd_thread_info *oti = osd_oti_get(env);
5348 struct iam_rec *iam_rec;
5353 if (!dt_object_exists(dt))
5356 LINVRNT(osd_invariant(obj));
5357 LASSERT(!dt_object_remote(dt));
5359 bag = &obj->oo_dir->od_container;
5360 LASSERT(bag->ic_object == obj->oo_inode);
5361 LASSERT(th != NULL);
5363 osd_trans_exec_op(env, th, OSD_OT_INSERT);
5365 ipd = osd_idx_ipd_get(env, bag);
5366 if (unlikely(ipd == NULL))
5369 oh = container_of0(th, struct osd_thandle, ot_super);
5370 LASSERT(oh->ot_handle != NULL);
5371 LASSERT(oh->ot_handle->h_transaction != NULL);
5372 if (S_ISDIR(obj->oo_inode->i_mode)) {
5373 iam_rec = (struct iam_rec *)oti->oti_ldp;
5374 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec,
5376 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5377 /* pack quota uid/gid */
5378 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5379 key = (const struct dt_key *)&oti->oti_quota_id;
5380 /* pack quota record */
5381 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
5382 iam_rec = (struct iam_rec *)rec;
5384 iam_rec = (struct iam_rec *)rec;
5387 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
5389 osd_ipd_put(env, bag, ipd);
5390 LINVRNT(osd_invariant(obj));
5391 osd_trans_exec_check(env, th, OSD_OT_INSERT);
5396 * Calls ldiskfs_add_entry() to add directory entry
5397 * into the directory. This is required for
5398 * interoperability mode (b11826)
5400 * \retval 0, on success
5401 * \retval -ve, on error
5403 static int __osd_ea_add_rec(struct osd_thread_info *info,
5404 struct osd_object *pobj, struct inode *cinode,
5405 const char *name, const struct lu_fid *fid,
5406 struct htree_lock *hlock, struct thandle *th)
5408 struct ldiskfs_dentry_param *ldp;
5409 struct dentry *child;
5410 struct osd_thandle *oth;
5413 oth = container_of(th, struct osd_thandle, ot_super);
5414 LASSERT(oth->ot_handle != NULL);
5415 LASSERT(oth->ot_handle->h_transaction != NULL);
5416 LASSERT(pobj->oo_inode);
5418 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
5419 if (unlikely(pobj->oo_inode ==
5420 osd_sb(osd_obj2dev(pobj))->s_root->d_inode))
5423 osd_get_ldiskfs_dirent_param(ldp, fid);
5424 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
5425 child->d_fsdata = (void *)ldp;
5426 dquot_initialize(pobj->oo_inode);
5427 rc = osd_ldiskfs_add_entry(info, osd_obj2dev(pobj), oth->ot_handle,
5428 child, cinode, hlock);
5429 if (rc == 0 && OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_TYPE)) {
5430 struct ldiskfs_dir_entry_2 *de;
5431 struct buffer_head *bh;
5434 bh = osd_ldiskfs_find_entry(pobj->oo_inode, &child->d_name, &de,
5437 rc1 = ldiskfs_journal_get_write_access(oth->ot_handle,
5440 if (S_ISDIR(cinode->i_mode))
5441 de->file_type = LDISKFS_DIRENT_LUFID |
5442 LDISKFS_FT_REG_FILE;
5444 de->file_type = LDISKFS_DIRENT_LUFID |
5446 ldiskfs_handle_dirty_metadata(oth->ot_handle,
5457 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
5458 * into the directory.Also sets flags into osd object to
5459 * indicate dot and dotdot are created. This is required for
5460 * interoperability mode (b11826)
5462 * \param dir directory for dot and dotdot fixup.
5463 * \param obj child object for linking
5465 * \retval 0, on success
5466 * \retval -ve, on error
5468 static int osd_add_dot_dotdot(struct osd_thread_info *info,
5469 struct osd_object *dir,
5470 struct inode *parent_dir, const char *name,
5471 const struct lu_fid *dot_fid,
5472 const struct lu_fid *dot_dot_fid,
5475 struct inode *inode = dir->oo_inode;
5476 struct osd_thandle *oth;
5479 oth = container_of(th, struct osd_thandle, ot_super);
5480 LASSERT(oth->ot_handle->h_transaction != NULL);
5481 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
5483 if (strcmp(name, dot) == 0) {
5484 if (dir->oo_compat_dot_created) {
5487 LASSERT(inode->i_ino == parent_dir->i_ino);
5488 dir->oo_compat_dot_created = 1;
5491 } else if (strcmp(name, dotdot) == 0) {
5492 if (!dir->oo_compat_dot_created)
5494 /* in case of rename, dotdot is already created */
5495 if (dir->oo_compat_dotdot_created) {
5496 return __osd_ea_add_rec(info, dir, parent_dir, name,
5497 dot_dot_fid, NULL, th);
5500 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_PARENT)) {
5501 struct lu_fid tfid = *dot_dot_fid;
5504 result = osd_add_dot_dotdot_internal(info,
5505 dir->oo_inode, parent_dir, dot_fid,
5508 result = osd_add_dot_dotdot_internal(info,
5509 dir->oo_inode, parent_dir, dot_fid,
5514 dir->oo_compat_dotdot_created = 1;
5522 * It will call the appropriate osd_add* function and return the
5523 * value, return by respective functions.
5525 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
5526 struct inode *cinode, const char *name,
5527 const struct lu_fid *fid, struct thandle *th)
5529 struct osd_thread_info *info = osd_oti_get(env);
5530 struct htree_lock *hlock;
5533 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
5535 if (name[0] == '.' && (name[1] == '\0' ||
5536 (name[1] == '.' && name[2] == '\0'))) {
5537 if (hlock != NULL) {
5538 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5541 down_write(&pobj->oo_ext_idx_sem);
5544 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
5545 lu_object_fid(&pobj->oo_dt.do_lu),
5548 if (hlock != NULL) {
5549 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5550 pobj->oo_inode, LDISKFS_HLOCK_ADD);
5552 down_write(&pobj->oo_ext_idx_sem);
5555 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
5556 struct lu_fid *tfid = &info->oti_fid;
5560 rc = __osd_ea_add_rec(info, pobj, cinode, name,
5563 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
5568 ldiskfs_htree_unlock(hlock);
5570 up_write(&pobj->oo_ext_idx_sem);
5576 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
5577 struct osd_idmap_cache *oic)
5579 struct lustre_scrub *scrub = &dev->od_scrub.os_scrub;
5580 struct lu_fid *fid = &oic->oic_fid;
5581 struct osd_inode_id *id = &oic->oic_lid;
5582 struct inode *inode = NULL;
5589 if (!fid_is_norm(fid) && !fid_is_igif(fid))
5592 if (thread_is_running(&scrub->os_thread) &&
5593 scrub->os_pos_current > id->oii_ino)
5596 if (dev->od_auto_scrub_interval == AS_NEVER ||
5597 ktime_get_real_seconds() <
5598 scrub->os_file.sf_time_last_complete + dev->od_auto_scrub_interval)
5602 rc = osd_oi_lookup(oti, dev, fid, &oti->oti_id, 0);
5603 if (rc == -ENOENT) {
5604 __u32 gen = id->oii_gen;
5610 inode = osd_iget(oti, dev, id);
5611 /* The inode has been removed (by race maybe). */
5612 if (IS_ERR(inode)) {
5613 rc = PTR_ERR(inode);
5615 RETURN(rc == -ESTALE ? -ENOENT : rc);
5618 /* The OI mapping is lost. */
5619 if (gen != OSD_OII_NOGEN)
5623 * The inode may has been reused by others, we do not know,
5624 * leave it to be handled by subsequent osd_fid_lookup().
5627 } else if (rc || osd_id_eq(id, &oti->oti_id)) {
5634 if (thread_is_running(&scrub->os_thread)) {
5635 if (inode == NULL) {
5636 inode = osd_iget(oti, dev, id);
5637 /* The inode has been removed (by race maybe). */
5638 if (IS_ERR(inode)) {
5639 rc = PTR_ERR(inode);
5641 RETURN(rc == -ESTALE ? -ENOENT : rc);
5645 rc = osd_oii_insert(dev, oic, insert);
5647 * There is race condition between osd_oi_lookup and OI scrub.
5648 * The OI scrub finished just after osd_oi_lookup() failure.
5649 * Under such case, it is unnecessary to trigger OI scrub again,
5650 * but try to call osd_oi_lookup() again.
5652 if (unlikely(rc == -EAGAIN))
5655 if (!S_ISDIR(inode->i_mode))
5658 rc = osd_check_lmv(oti, dev, inode, oic);
5663 if (dev->od_auto_scrub_interval != AS_NEVER && ++once == 1) {
5664 rc = osd_scrub_start(oti->oti_env, dev, SS_AUTO_PARTIAL |
5665 SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT);
5666 CDEBUG(D_LFSCK | D_CONSOLE | D_WARNING,
5667 "%s: trigger partial OI scrub for RPC inconsistency "
5668 "checking FID "DFID": rc = %d\n",
5669 osd_dev2name(dev), PFID(fid), rc);
5670 if (rc == 0 || rc == -EALREADY)
5683 static int osd_fail_fid_lookup(struct osd_thread_info *oti,
5684 struct osd_device *dev,
5685 struct osd_idmap_cache *oic,
5686 struct lu_fid *fid, __u32 ino)
5688 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
5689 struct inode *inode;
5692 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
5693 inode = osd_iget(oti, dev, &oic->oic_lid);
5694 if (IS_ERR(inode)) {
5695 fid_zero(&oic->oic_fid);
5696 return PTR_ERR(inode);
5699 rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, loa);
5702 fid_zero(&oic->oic_fid);
5704 *fid = oic->oic_fid = loa->loa_lma.lma_self_fid;
5708 void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
5709 struct osd_inode_id *id, const struct lu_fid *fid)
5711 CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
5712 id->oii_ino, id->oii_gen, info);
5713 info->oti_cache.oic_lid = *id;
5714 info->oti_cache.oic_fid = *fid;
5715 info->oti_cache.oic_dev = osd;
5719 * Get parent FID from the linkEA.
5721 * For a directory which parent resides on remote MDT, to satisfy the
5722 * local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
5723 * the other hand, to make the lookup(..) on the directory can return
5724 * the real parent FID, we append the real parent FID after its ".."
5725 * name entry in the /REMOTE_PARENT_DIR.
5727 * Unfortunately, such PFID-in-dirent cannot be preserved via file-level
5728 * backup. So after the restore, we cannot get the right parent FID from
5729 * its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
5730 * we have stored the real parent FID in the directory object's linkEA,
5731 * we can parse the linkEA for the real parent FID.
5733 * \param[in] env pointer to the thread context
5734 * \param[in] obj pointer to the object to be handled
5735 * \param[out]fid pointer to the buffer to hold the parent FID
5737 * \retval 0 for getting the real parent FID successfully
5738 * \retval negative error number on failure
5740 static int osd_get_pfid_from_linkea(const struct lu_env *env,
5741 struct osd_object *obj,
5744 struct osd_thread_info *oti = osd_oti_get(env);
5745 struct lu_buf *buf = &oti->oti_big_buf;
5746 struct dentry *dentry = &oti->oti_obj_dentry;
5747 struct inode *inode = obj->oo_inode;
5748 struct linkea_data ldata = { NULL };
5754 if (!S_ISDIR(inode->i_mode))
5758 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5759 buf->lb_buf, buf->lb_len);
5760 if (rc == -ERANGE) {
5761 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5764 lu_buf_realloc(buf, rc);
5765 if (buf->lb_buf == NULL)
5772 if (unlikely(rc == 0))
5778 if (unlikely(buf->lb_buf == NULL)) {
5779 lu_buf_realloc(buf, rc);
5780 if (buf->lb_buf == NULL)
5787 rc = linkea_init_with_rec(&ldata);
5789 linkea_first_entry(&ldata);
5790 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
5796 static int osd_verify_ent_by_linkea(const struct lu_env *env,
5797 struct inode *inode,
5798 const struct lu_fid *pfid,
5799 const char *name, const int namelen)
5801 struct osd_thread_info *oti = osd_oti_get(env);
5802 struct lu_buf *buf = &oti->oti_big_buf;
5803 struct dentry *dentry = &oti->oti_obj_dentry;
5804 struct linkea_data ldata = { NULL };
5805 struct lu_name cname = { .ln_name = name,
5806 .ln_namelen = namelen };
5812 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5813 buf->lb_buf, buf->lb_len);
5815 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK, NULL, 0);
5820 if (unlikely(rc == 0))
5823 if (buf->lb_len < rc) {
5824 lu_buf_realloc(buf, rc);
5825 if (buf->lb_buf == NULL)
5832 rc = linkea_init_with_rec(&ldata);
5834 rc = linkea_links_find(&ldata, &cname, pfid);
5840 * Calls ->lookup() to find dentry. From dentry get inode and
5841 * read inode's ea to get fid. This is required for interoperability
5844 * \retval 0, on success
5845 * \retval -ve, on error
5847 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
5848 struct dt_rec *rec, const struct dt_key *key)
5850 struct inode *dir = obj->oo_inode;
5851 struct dentry *dentry;
5852 struct ldiskfs_dir_entry_2 *de;
5853 struct buffer_head *bh;
5854 struct lu_fid *fid = (struct lu_fid *)rec;
5855 struct htree_lock *hlock = NULL;
5861 LASSERT(dir->i_op != NULL);
5862 LASSERT(dir->i_op->lookup != NULL);
5864 dentry = osd_child_dentry_get(env, obj,
5865 (char *)key, strlen((char *)key));
5867 if (obj->oo_hl_head != NULL) {
5868 hlock = osd_oti_get(env)->oti_hlock;
5869 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5870 dir, LDISKFS_HLOCK_LOOKUP);
5872 down_read(&obj->oo_ext_idx_sem);
5875 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5877 struct osd_thread_info *oti = osd_oti_get(env);
5878 struct osd_inode_id *id = &oti->oti_id;
5879 struct osd_idmap_cache *oic = &oti->oti_cache;
5880 struct osd_device *dev = osd_obj2dev(obj);
5882 ino = le32_to_cpu(de->inode);
5883 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
5885 rc = osd_fail_fid_lookup(oti, dev, oic, fid, ino);
5889 rc = osd_get_fid_from_dentry(de, rec);
5891 /* done with de, release bh */
5894 if (unlikely(is_remote_parent_ino(dev, ino))) {
5895 const char *name = (const char *)key;
5898 * If the parent is on remote MDT, and there
5899 * is no FID-in-dirent, then we have to get
5900 * the parent FID from the linkEA.
5902 if (likely(strlen(name) == 2 &&
5903 name[0] == '.' && name[1] == '.'))
5904 rc = osd_get_pfid_from_linkea(env, obj,
5907 rc = osd_ea_fid_get(env, obj, ino, fid, id);
5910 osd_id_gen(id, ino, OSD_OII_NOGEN);
5913 if (rc != 0 || osd_remote_fid(env, dev, fid)) {
5914 fid_zero(&oic->oic_fid);
5919 osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id, fid);
5920 rc = osd_consistency_check(oti, dev, oic);
5922 fid_zero(&oic->oic_fid);
5924 /* Other error should not affect lookup result. */
5934 ldiskfs_htree_unlock(hlock);
5936 up_read(&obj->oo_ext_idx_sem);
5940 static int osd_index_declare_ea_insert(const struct lu_env *env,
5941 struct dt_object *dt,
5942 const struct dt_rec *rec,
5943 const struct dt_key *key,
5944 struct thandle *handle)
5946 struct osd_thandle *oh;
5947 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5948 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
5949 const struct lu_fid *fid = rec1->rec_fid;
5950 int credits, rc = 0;
5951 struct osd_idmap_cache *idc;
5955 LASSERT(!dt_object_remote(dt));
5956 LASSERT(handle != NULL);
5957 LASSERT(fid != NULL);
5958 LASSERT(rec1->rec_type != 0);
5960 oh = container_of0(handle, struct osd_thandle, ot_super);
5961 LASSERT(oh->ot_handle == NULL);
5963 credits = osd_dto_credits_noquota[DTO_INDEX_INSERT];
5966 * we can't call iget() while a transactions is running
5967 * (this can lead to a deadlock), but we need to know
5968 * inum and object type. so we find this information at
5969 * declaration and cache in per-thread info
5971 idc = osd_idc_find_or_init(env, osd, fid);
5973 RETURN(PTR_ERR(idc));
5974 if (idc->oic_remote) {
5976 * a reference to remote inode is represented by an
5977 * agent inode which we have to create
5979 credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
5980 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
5983 osd_trans_declare_op(env, oh, OSD_OT_INSERT, credits);
5985 if (osd_dt_obj(dt)->oo_inode != NULL) {
5986 struct inode *inode = osd_dt_obj(dt)->oo_inode;
5989 * We ignore block quota on meta pool (MDTs), so needn't
5990 * calculate how many blocks will be consumed by this index
5993 rc = osd_declare_inode_qid(env, i_uid_read(inode),
5995 i_projid_read(inode), 0,
5996 oh, osd_dt_obj(dt), NULL,
6001 #ifdef HAVE_PROJECT_QUOTA
6003 * Reserve credits for local agent inode to transfer
6004 * to 0, quota enforcement is ignored in this case.
6006 if (idc->oic_remote &&
6007 LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
6008 i_projid_read(inode) != 0)
6009 rc = osd_declare_attr_qid(env, osd_dt_obj(dt), oh,
6010 0, i_projid_read(inode),
6011 0, false, PRJQUOTA, true);
6019 * Index add function for interoperability mode (b11826).
6020 * It will add the directory entry.This entry is needed to
6021 * maintain name->fid mapping.
6023 * \param key it is key i.e. file entry to be inserted
6024 * \param rec it is value of given key i.e. fid
6026 * \retval 0, on success
6027 * \retval -ve, on error
6029 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
6030 const struct dt_rec *rec,
6031 const struct dt_key *key, struct thandle *th)
6033 struct osd_object *obj = osd_dt_obj(dt);
6034 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
6035 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
6036 const struct lu_fid *fid = rec1->rec_fid;
6037 const char *name = (const char *)key;
6038 struct osd_thread_info *oti = osd_oti_get(env);
6039 struct inode *child_inode = NULL;
6040 struct osd_idmap_cache *idc;
6045 if (!dt_object_exists(dt))
6048 LASSERT(osd_invariant(obj));
6049 LASSERT(!dt_object_remote(dt));
6050 LASSERT(th != NULL);
6052 osd_trans_exec_op(env, th, OSD_OT_INSERT);
6054 LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
6056 idc = osd_idc_find(env, osd, fid);
6057 if (unlikely(idc == NULL)) {
6058 idc = osd_idc_find_or_init(env, osd, fid);
6061 * this dt_insert() wasn't declared properly, so
6062 * FID is missing in OI cache. we better do not
6063 * lookup FID in FLDB/OI and don't risk to deadlock,
6064 * but in some special cases (lfsck testing, etc)
6065 * it's much simpler than fixing a caller.
6067 * normally this error should be placed after the first
6068 * find, but migrate may attach source stripes to
6069 * target, which doesn't create stripes.
6071 CERROR("%s: "DFID" wasn't declared for insert\n",
6072 osd_name(osd), PFID(fid));
6074 RETURN(PTR_ERR(idc));
6078 if (idc->oic_remote) {
6079 /* Insert remote entry */
6080 if (strcmp(name, dotdot) == 0 && strlen(name) == 2) {
6082 igrab(osd->od_mdt_map->omm_remote_parent->d_inode);
6084 child_inode = osd_create_local_agent_inode(env, osd,
6085 obj, fid, rec1->rec_type & S_IFMT, th);
6086 if (IS_ERR(child_inode))
6087 RETURN(PTR_ERR(child_inode));
6090 /* Insert local entry */
6091 if (unlikely(idc->oic_lid.oii_ino == 0)) {
6092 /* for a reason OI cache wasn't filled properly */
6093 CERROR("%s: OIC for "DFID" isn't filled\n",
6094 osd_name(osd), PFID(fid));
6097 child_inode = oti->oti_inode;
6098 if (unlikely(child_inode == NULL)) {
6099 struct ldiskfs_inode_info *lii;
6104 child_inode = oti->oti_inode = &lii->vfs_inode;
6106 child_inode->i_sb = osd_sb(osd);
6107 child_inode->i_ino = idc->oic_lid.oii_ino;
6108 child_inode->i_mode = rec1->rec_type & S_IFMT;
6111 rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
6113 CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
6114 obj->oo_inode->i_ino, name, child_inode->i_ino, rc);
6116 if (child_inode && child_inode != oti->oti_inode)
6118 LASSERT(osd_invariant(obj));
6119 osd_trans_exec_check(env, th, OSD_OT_INSERT);
6124 * Initialize osd Iterator for given osd index object.
6126 * \param dt osd index object
6129 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
6130 struct dt_object *dt,
6133 struct osd_it_iam *it;
6134 struct osd_object *obj = osd_dt_obj(dt);
6135 struct lu_object *lo = &dt->do_lu;
6136 struct iam_path_descr *ipd;
6137 struct iam_container *bag = &obj->oo_dir->od_container;
6139 if (!dt_object_exists(dt))
6140 return ERR_PTR(-ENOENT);
6144 return ERR_PTR(-ENOMEM);
6146 ipd = osd_it_ipd_get(env, bag);
6147 if (likely(ipd != NULL)) {
6151 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
6152 return (struct dt_it *)it;
6155 return ERR_PTR(-ENOMEM);
6160 * free given Iterator.
6162 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
6164 struct osd_it_iam *it = (struct osd_it_iam *)di;
6165 struct osd_object *obj = it->oi_obj;
6167 iam_it_fini(&it->oi_it);
6168 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
6169 osd_object_put(env, obj);
6174 * Move Iterator to record specified by \a key
6176 * \param di osd iterator
6177 * \param key key for index
6179 * \retval +ve di points to record with least key not larger than key
6180 * \retval 0 di points to exact matched key
6181 * \retval -ve failure
6184 static int osd_it_iam_get(const struct lu_env *env,
6185 struct dt_it *di, const struct dt_key *key)
6187 struct osd_thread_info *oti = osd_oti_get(env);
6188 struct osd_it_iam *it = (struct osd_it_iam *)di;
6190 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
6191 /* swab quota uid/gid */
6192 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
6193 key = (struct dt_key *)&oti->oti_quota_id;
6196 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
6202 * \param di osd iterator
6204 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
6206 struct osd_it_iam *it = (struct osd_it_iam *)di;
6208 iam_it_put(&it->oi_it);
6212 * Move iterator by one record
6214 * \param di osd iterator
6216 * \retval +1 end of container reached
6218 * \retval -ve failure
6221 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
6223 struct osd_it_iam *it = (struct osd_it_iam *)di;
6225 return iam_it_next(&it->oi_it);
6229 * Return pointer to the key under iterator.
6232 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
6233 const struct dt_it *di)
6235 struct osd_thread_info *oti = osd_oti_get(env);
6236 struct osd_it_iam *it = (struct osd_it_iam *)di;
6237 struct osd_object *obj = it->oi_obj;
6240 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
6242 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
6243 /* swab quota uid/gid */
6244 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
6245 key = (struct dt_key *)&oti->oti_quota_id;
6252 * Return size of key under iterator (in bytes)
6255 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
6257 struct osd_it_iam *it = (struct osd_it_iam *)di;
6259 return iam_it_key_size(&it->oi_it);
6263 osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
6265 /* check if file type is required */
6266 if (ent->lde_attrs & LUDA_TYPE) {
6267 struct luda_type *lt;
6268 int align = sizeof(*lt) - 1;
6270 len = (len + align) & ~align;
6271 lt = (struct luda_type *)(ent->lde_name + len);
6272 lt->lt_type = cpu_to_le16(DTTOIF(type));
6275 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
6279 * build lu direct from backend fs dirent.
6283 osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
6284 char *name, __u16 namelen, __u16 type, __u32 attr)
6286 ent->lde_attrs = attr | LUDA_FID;
6287 fid_cpu_to_le(&ent->lde_fid, fid);
6289 ent->lde_hash = cpu_to_le64(offset);
6290 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
6292 strncpy(ent->lde_name, name, namelen);
6293 ent->lde_name[namelen] = '\0';
6294 ent->lde_namelen = cpu_to_le16(namelen);
6296 /* append lustre attributes */
6297 osd_it_append_attrs(ent, namelen, type);
6301 * Return pointer to the record under iterator.
6303 static int osd_it_iam_rec(const struct lu_env *env,
6304 const struct dt_it *di,
6305 struct dt_rec *dtrec, __u32 attr)
6307 struct osd_it_iam *it = (struct osd_it_iam *)di;
6308 struct osd_thread_info *info = osd_oti_get(env);
6312 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
6313 const struct osd_fid_pack *rec;
6314 struct lu_fid *fid = &info->oti_fid;
6315 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
6321 name = (char *)iam_it_key_get(&it->oi_it);
6323 RETURN(PTR_ERR(name));
6325 namelen = iam_it_key_size(&it->oi_it);
6327 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
6329 RETURN(PTR_ERR(rec));
6331 rc = osd_fid_unpack(fid, rec);
6335 hash = iam_it_store(&it->oi_it);
6337 /* IAM does not store object type in IAM index (dir) */
6338 osd_it_pack_dirent(lde, fid, hash, name, namelen,
6340 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
6341 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
6342 (struct iam_rec *)dtrec);
6343 osd_quota_unpack(it->oi_obj, dtrec);
6345 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
6346 (struct iam_rec *)dtrec);
6353 * Returns cookie for current Iterator position.
6355 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
6357 struct osd_it_iam *it = (struct osd_it_iam *)di;
6359 return iam_it_store(&it->oi_it);
6363 * Restore iterator from cookie.
6365 * \param di osd iterator
6366 * \param hash Iterator location cookie
6368 * \retval +ve di points to record with least key not larger than key.
6369 * \retval 0 di points to exact matched key
6370 * \retval -ve failure
6373 static int osd_it_iam_load(const struct lu_env *env,
6374 const struct dt_it *di, __u64 hash)
6376 struct osd_it_iam *it = (struct osd_it_iam *)di;
6378 return iam_it_load(&it->oi_it, hash);
6381 static const struct dt_index_operations osd_index_iam_ops = {
6382 .dio_lookup = osd_index_iam_lookup,
6383 .dio_declare_insert = osd_index_declare_iam_insert,
6384 .dio_insert = osd_index_iam_insert,
6385 .dio_declare_delete = osd_index_declare_iam_delete,
6386 .dio_delete = osd_index_iam_delete,
6388 .init = osd_it_iam_init,
6389 .fini = osd_it_iam_fini,
6390 .get = osd_it_iam_get,
6391 .put = osd_it_iam_put,
6392 .next = osd_it_iam_next,
6393 .key = osd_it_iam_key,
6394 .key_size = osd_it_iam_key_size,
6395 .rec = osd_it_iam_rec,
6396 .store = osd_it_iam_store,
6397 .load = osd_it_iam_load
6403 * Creates or initializes iterator context.
6405 * \retval struct osd_it_ea, iterator structure on success
6408 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
6409 struct dt_object *dt,
6412 struct osd_object *obj = osd_dt_obj(dt);
6413 struct osd_thread_info *info = osd_oti_get(env);
6414 struct osd_it_ea *oie;
6416 struct lu_object *lo = &dt->do_lu;
6417 struct dentry *obj_dentry;
6421 if (!dt_object_exists(dt) || obj->oo_destroyed)
6422 RETURN(ERR_PTR(-ENOENT));
6424 OBD_SLAB_ALLOC_PTR_GFP(oie, osd_itea_cachep, GFP_NOFS);
6426 RETURN(ERR_PTR(-ENOMEM));
6427 obj_dentry = &oie->oie_dentry;
6429 obj_dentry->d_inode = obj->oo_inode;
6430 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
6431 obj_dentry->d_name.hash = 0;
6433 oie->oie_rd_dirent = 0;
6434 oie->oie_it_dirent = 0;
6435 oie->oie_dirent = NULL;
6436 if (unlikely(!info->oti_it_ea_buf_used)) {
6437 oie->oie_buf = info->oti_it_ea_buf;
6438 info->oti_it_ea_buf_used = 1;
6440 OBD_ALLOC(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6441 if (oie->oie_buf == NULL)
6442 RETURN(ERR_PTR(-ENOMEM));
6446 file = &oie->oie_file;
6448 /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
6449 if (attr & LUDA_64BITHASH)
6450 file->f_mode = FMODE_64BITHASH;
6452 file->f_mode = FMODE_32BITHASH;
6453 file->f_path.dentry = obj_dentry;
6454 file->f_mapping = obj->oo_inode->i_mapping;
6455 file->f_op = obj->oo_inode->i_fop;
6456 set_file_inode(file, obj->oo_inode);
6459 RETURN((struct dt_it *)oie);
6463 * Destroy or finishes iterator context.
6465 * \param di iterator structure to be destroyed
6467 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
6469 struct osd_thread_info *info = osd_oti_get(env);
6470 struct osd_it_ea *oie = (struct osd_it_ea *)di;
6471 struct osd_object *obj = oie->oie_obj;
6472 struct inode *inode = obj->oo_inode;
6475 oie->oie_file.f_op->release(inode, &oie->oie_file);
6476 osd_object_put(env, obj);
6477 if (unlikely(oie->oie_buf != info->oti_it_ea_buf))
6478 OBD_FREE(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6480 info->oti_it_ea_buf_used = 0;
6481 OBD_SLAB_FREE_PTR(oie, osd_itea_cachep);
6486 * It position the iterator at given key, so that next lookup continues from
6487 * that key Or it is similar to dio_it->load() but based on a key,
6488 * rather than file position.
6490 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
6493 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
6495 static int osd_it_ea_get(const struct lu_env *env,
6496 struct dt_it *di, const struct dt_key *key)
6498 struct osd_it_ea *it = (struct osd_it_ea *)di;
6501 LASSERT(((const char *)key)[0] == '\0');
6502 it->oie_file.f_pos = 0;
6503 it->oie_rd_dirent = 0;
6504 it->oie_it_dirent = 0;
6505 it->oie_dirent = NULL;
6513 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
6517 struct osd_filldir_cbs {
6518 struct dir_context ctx;
6519 struct osd_it_ea *it;
6522 * It is called internally by ->iterate*(). It fills the
6523 * iterator's in-memory data structure with required
6524 * information i.e. name, namelen, rec_size etc.
6526 * \param buf in which information to be filled in.
6527 * \param name name of the file in given dir
6529 * \retval 0 on success
6530 * \retval 1 on buffer full
6532 #ifdef HAVE_FILLDIR_USE_CTX
6533 static int osd_ldiskfs_filldir(struct dir_context *buf,
6535 static int osd_ldiskfs_filldir(void *buf,
6537 const char *name, int namelen,
6538 loff_t offset, __u64 ino, unsigned int d_type)
6540 struct osd_it_ea *it = ((struct osd_filldir_cbs *)buf)->it;
6541 struct osd_object *obj = it->oie_obj;
6542 struct osd_it_ea_dirent *ent = it->oie_dirent;
6543 struct lu_fid *fid = &ent->oied_fid;
6544 struct osd_fid_pack *rec;
6548 /* this should never happen */
6549 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
6550 CERROR("ldiskfs return invalid namelen %d\n", namelen);
6554 if ((void *)ent - it->oie_buf + sizeof(*ent) + namelen >
6558 /* "." is just the object itself. */
6559 if (namelen == 1 && name[0] == '.') {
6560 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6561 } else if (d_type & LDISKFS_DIRENT_LUFID) {
6562 rec = (struct osd_fid_pack *)(name + namelen + 1);
6563 if (osd_fid_unpack(fid, rec) != 0)
6568 d_type &= ~LDISKFS_DIRENT_LUFID;
6570 /* NOT export local root. */
6571 if (unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
6572 ino = obj->oo_inode->i_ino;
6573 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6576 ent->oied_ino = ino;
6577 ent->oied_off = offset;
6578 ent->oied_namelen = namelen;
6579 ent->oied_type = d_type;
6581 memcpy(ent->oied_name, name, namelen);
6583 it->oie_rd_dirent++;
6584 it->oie_dirent = (void *)ent + cfs_size_round(sizeof(*ent) + namelen);
6589 * Calls ->iterate*() to load a directory entry at a time
6590 * and stored it in iterator's in-memory data structure.
6592 * \param di iterator's in memory structure
6594 * \retval 0 on success
6595 * \retval -ve on error
6596 * \retval +1 reach the end of entry
6598 static int osd_ldiskfs_it_fill(const struct lu_env *env,
6599 const struct dt_it *di)
6601 struct osd_it_ea *it = (struct osd_it_ea *)di;
6602 struct osd_object *obj = it->oie_obj;
6603 struct inode *inode = obj->oo_inode;
6604 struct htree_lock *hlock = NULL;
6605 struct file *filp = &it->oie_file;
6607 struct osd_filldir_cbs buf = {
6608 .ctx.actor = osd_ldiskfs_filldir,
6613 it->oie_dirent = it->oie_buf;
6614 it->oie_rd_dirent = 0;
6616 if (obj->oo_hl_head != NULL) {
6617 hlock = osd_oti_get(env)->oti_hlock;
6618 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
6619 inode, LDISKFS_HLOCK_READDIR);
6621 down_read(&obj->oo_ext_idx_sem);
6624 rc = osd_security_file_alloc(filp);
6628 filp->f_flags |= O_NOATIME;
6629 filp->f_mode |= FMODE_NONOTIFY;
6630 rc = iterate_dir(filp, &buf.ctx);
6635 ldiskfs_htree_unlock(hlock);
6637 up_read(&obj->oo_ext_idx_sem);
6639 if (it->oie_rd_dirent == 0) {
6641 * If it does not get any dirent, it means it has been reached
6642 * to the end of the dir
6644 it->oie_file.f_pos = ldiskfs_get_htree_eof(&it->oie_file);
6648 it->oie_dirent = it->oie_buf;
6649 it->oie_it_dirent = 1;
6656 * It calls osd_ldiskfs_it_fill() which will use ->iterate*()
6657 * to load a directory entry at a time and stored it in
6658 * iterator's in-memory data structure.
6660 * \param di iterator's in memory structure
6662 * \retval +ve iterator reached to end
6663 * \retval 0 iterator not reached to end
6664 * \retval -ve on error
6666 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
6668 struct osd_it_ea *it = (struct osd_it_ea *)di;
6673 if (it->oie_it_dirent < it->oie_rd_dirent) {
6675 (void *)it->oie_dirent +
6676 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
6677 it->oie_dirent->oied_namelen);
6678 it->oie_it_dirent++;
6681 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
6684 rc = osd_ldiskfs_it_fill(env, di);
6691 * Returns the key at current position from iterator's in memory structure.
6693 * \param di iterator's in memory structure
6695 * \retval key i.e. struct dt_key on success
6697 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
6698 const struct dt_it *di)
6700 struct osd_it_ea *it = (struct osd_it_ea *)di;
6702 return (struct dt_key *)it->oie_dirent->oied_name;
6706 * Returns key's size at current position from iterator's in memory structure.
6708 * \param di iterator's in memory structure
6710 * \retval key_size i.e. struct dt_key on success
6712 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
6714 struct osd_it_ea *it = (struct osd_it_ea *)di;
6716 return it->oie_dirent->oied_namelen;
6719 static inline bool osd_dotdot_has_space(struct ldiskfs_dir_entry_2 *de)
6721 if (LDISKFS_DIR_REC_LEN(de) >=
6722 __LDISKFS_DIR_REC_LEN(2 + 1 + sizeof(struct osd_fid_pack)))
6729 osd_dirent_has_space(struct ldiskfs_dir_entry_2 *de, __u16 namelen,
6730 unsigned int blocksize, bool dotdot)
6733 return osd_dotdot_has_space(de);
6735 if (ldiskfs_rec_len_from_disk(de->rec_len, blocksize) >=
6736 __LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
6743 osd_dirent_reinsert(const struct lu_env *env, struct osd_device *dev,
6744 handle_t *jh, struct dentry *dentry,
6745 const struct lu_fid *fid, struct buffer_head *bh,
6746 struct ldiskfs_dir_entry_2 *de, struct htree_lock *hlock,
6749 struct inode *dir = dentry->d_parent->d_inode;
6750 struct inode *inode = dentry->d_inode;
6751 struct osd_fid_pack *rec;
6752 struct ldiskfs_dentry_param *ldp;
6753 int namelen = dentry->d_name.len;
6755 struct osd_thread_info *info = osd_oti_get(env);
6759 if (!ldiskfs_has_feature_dirdata(inode->i_sb))
6762 /* There is enough space to hold the FID-in-dirent. */
6763 if (osd_dirent_has_space(de, namelen, dir->i_sb->s_blocksize, dotdot)) {
6764 rc = ldiskfs_journal_get_write_access(jh, bh);
6768 de->name[namelen] = 0;
6769 rec = (struct osd_fid_pack *)(de->name + namelen + 1);
6770 rec->fp_len = sizeof(struct lu_fid) + 1;
6771 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
6772 de->file_type |= LDISKFS_DIRENT_LUFID;
6773 rc = ldiskfs_handle_dirty_metadata(jh, NULL, bh);
6780 rc = ldiskfs_delete_entry(jh, dir, de, bh);
6784 ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
6785 osd_get_ldiskfs_dirent_param(ldp, fid);
6786 dentry->d_fsdata = (void *)ldp;
6787 dquot_initialize(dir);
6788 rc = osd_ldiskfs_add_entry(info, dev, jh, dentry, inode, hlock);
6790 * It is too bad, we cannot reinsert the name entry back.
6791 * That means we lose it!
6794 CDEBUG(D_LFSCK, "%s: fail to reinsert the dirent, "
6795 "dir = %lu/%u, name = %.*s, "DFID": rc = %d\n",
6796 osd_ino2name(inode),
6797 dir->i_ino, dir->i_generation, namelen,
6798 dentry->d_name.name, PFID(fid), rc);
6804 osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
6805 struct osd_it_ea *it, struct lu_fid *fid,
6806 struct osd_inode_id *id, __u32 *attr)
6808 struct osd_thread_info *info = osd_oti_get(env);
6809 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
6810 struct osd_device *dev = osd_obj2dev(obj);
6811 struct super_block *sb = osd_sb(dev);
6812 const char *devname = osd_name(dev);
6813 struct osd_it_ea_dirent *ent = it->oie_dirent;
6814 struct inode *dir = obj->oo_inode;
6815 struct htree_lock *hlock = NULL;
6816 struct buffer_head *bh = NULL;
6817 handle_t *jh = NULL;
6818 struct ldiskfs_dir_entry_2 *de;
6819 struct dentry *dentry;
6820 struct inode *inode;
6821 const struct lu_fid *pfid = lu_object_fid(&obj->oo_dt.do_lu);
6824 bool dotdot = false;
6829 if (ent->oied_name[0] == '.') {
6830 if (ent->oied_namelen == 1)
6833 if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
6837 osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
6838 inode = osd_iget(info, dev, id);
6839 if (IS_ERR(inode)) {
6840 rc = PTR_ERR(inode);
6841 if (rc == -ENOENT || rc == -ESTALE) {
6843 * Maybe dangling name entry, or
6844 * corrupted directory entry.
6846 *attr |= LUDA_UNKNOWN;
6849 CDEBUG(D_LFSCK, "%s: fail to iget() for dirent "
6850 "check_repair, dir = %lu/%u, name = %.*s, "
6851 "ino = %llu, rc = %d\n",
6852 devname, dir->i_ino, dir->i_generation,
6853 ent->oied_namelen, ent->oied_name,
6860 dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
6862 rc = osd_get_lma(info, inode, dentry, &info->oti_ost_attrs);
6863 if (rc == -ENODATA || !fid_is_sane(&lma->lma_self_fid))
6869 * We need to ensure that the name entry is still valid.
6870 * Because it may be removed or renamed by other already.
6872 * The unlink or rename operation will start journal before PDO lock,
6873 * so to avoid deadlock, here we need to start journal handle before
6874 * related PDO lock also. But because we do not know whether there
6875 * will be something to be repaired before PDO lock, we just start
6876 * journal without conditions.
6878 * We may need to remove the name entry firstly, then insert back.
6879 * One credit is for user quota file update.
6880 * One credit is for group quota file update.
6881 * Two credits are for dirty inode.
6883 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
6884 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
6886 if (dev->od_dirent_journal != 0) {
6889 jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
6892 CDEBUG(D_LFSCK, "%s: fail to start trans for dirent "
6893 "check_repair, dir = %lu/%u, credits = %d, "
6894 "name = %.*s, ino = %llu: rc = %d\n",
6895 devname, dir->i_ino, dir->i_generation, credits,
6896 ent->oied_namelen, ent->oied_name,
6899 GOTO(out_inode, rc);
6902 if (obj->oo_hl_head != NULL) {
6903 hlock = osd_oti_get(env)->oti_hlock;
6905 * "0" means exclusive lock for the whole directory.
6906 * We need to prevent others access such name entry
6907 * during the delete + insert. Neither HLOCK_ADD nor
6908 * HLOCK_DEL cannot guarantee the atomicity.
6910 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
6912 down_write(&obj->oo_ext_idx_sem);
6915 if (obj->oo_hl_head != NULL) {
6916 hlock = osd_oti_get(env)->oti_hlock;
6917 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
6918 LDISKFS_HLOCK_LOOKUP);
6920 down_read(&obj->oo_ext_idx_sem);
6924 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
6925 if (IS_ERR(bh) || le32_to_cpu(de->inode) != inode->i_ino) {
6926 *attr |= LUDA_IGNORE;
6932 * For dotdot entry, if there is not enough space to hold the
6933 * FID-in-dirent, just keep them there. It only happens when the
6934 * device upgraded from 1.8 or restored from MDT file-level backup.
6935 * For the whole directory, only dotdot entry have no FID-in-dirent
6936 * and needs to get FID from LMA when readdir, it will not affect the
6939 if (dotdot && !osd_dotdot_has_space(de)) {
6940 *attr |= LUDA_UNKNOWN;
6946 if (lu_fid_eq(fid, &lma->lma_self_fid))
6949 if (unlikely(lma->lma_compat & LMAC_NOT_IN_OI)) {
6950 struct lu_fid *tfid = &lma->lma_self_fid;
6952 if (likely(dotdot &&
6953 fid_seq(tfid) == FID_SEQ_LOCAL_FILE &&
6954 fid_oid(tfid) == REMOTE_PARENT_DIR_OID)) {
6956 * It must be REMOTE_PARENT_DIR and as the
6957 * 'dotdot' entry of remote directory
6959 *attr |= LUDA_IGNORE;
6961 CDEBUG(D_LFSCK, "%s: expect remote agent "
6962 "parent directory, but got %.*s under "
6963 "dir = %lu/%u with the FID "DFID"\n",
6964 devname, ent->oied_namelen,
6965 ent->oied_name, dir->i_ino,
6966 dir->i_generation, PFID(tfid));
6968 *attr |= LUDA_UNKNOWN;
6975 if (!fid_is_zero(fid)) {
6976 rc = osd_verify_ent_by_linkea(env, inode, pfid, ent->oied_name,
6978 if (rc == -ENOENT ||
6980 !(dev->od_scrub.os_scrub.os_file.sf_flags & SF_UPGRADE))) {
6982 * linkEA does not recognize the dirent entry,
6983 * it may because the dirent entry corruption
6984 * and points to other's inode.
6986 CDEBUG(D_LFSCK, "%s: the target inode does not "
6987 "recognize the dirent, dir = %lu/%u, "
6988 " name = %.*s, ino = %llu, "
6989 DFID": rc = %d\n", devname, dir->i_ino,
6990 dir->i_generation, ent->oied_namelen,
6991 ent->oied_name, ent->oied_ino, PFID(fid), rc);
6992 *attr |= LUDA_UNKNOWN;
6997 if (rc && rc != -ENODATA) {
6998 CDEBUG(D_LFSCK, "%s: fail to verify FID in the dirent, "
6999 "dir = %lu/%u, name = %.*s, ino = %llu, "
7000 DFID": rc = %d\n", devname, dir->i_ino,
7001 dir->i_generation, ent->oied_namelen,
7002 ent->oied_name, ent->oied_ino, PFID(fid), rc);
7003 *attr |= LUDA_UNKNOWN;
7011 * linkEA recognizes the dirent entry, the FID-in-LMA is
7012 * valid, trusted, in spite of fid_is_sane(fid) or not.
7014 if (*attr & LUDA_VERIFY_DRYRUN) {
7015 *fid = lma->lma_self_fid;
7016 *attr |= LUDA_REPAIR;
7023 dev->od_dirent_journal = 1;
7024 if (hlock != NULL) {
7025 ldiskfs_htree_unlock(hlock);
7028 up_read(&obj->oo_ext_idx_sem);
7034 *fid = lma->lma_self_fid;
7036 /* Update or append the FID-in-dirent. */
7037 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
7038 bh, de, hlock, dotdot);
7040 *attr |= LUDA_REPAIR;
7042 CDEBUG(D_LFSCK, "%s: fail to re-insert FID after "
7043 "the dirent, dir = %lu/%u, name = %.*s, "
7044 "ino = %llu, "DFID": rc = %d\n",
7045 devname, dir->i_ino, dir->i_generation,
7046 ent->oied_namelen, ent->oied_name,
7047 ent->oied_ino, PFID(fid), rc);
7049 /* lma is NULL, trust the FID-in-dirent if it is valid. */
7050 if (*attr & LUDA_VERIFY_DRYRUN) {
7051 if (fid_is_sane(fid)) {
7052 *attr |= LUDA_REPAIR;
7053 } else if (dev->od_index == 0) {
7054 lu_igif_build(fid, inode->i_ino,
7055 inode->i_generation);
7056 *attr |= LUDA_UPGRADE;
7064 dev->od_dirent_journal = 1;
7065 if (hlock != NULL) {
7066 ldiskfs_htree_unlock(hlock);
7069 up_read(&obj->oo_ext_idx_sem);
7076 if (unlikely(fid_is_sane(fid))) {
7078 * FID-in-dirent exists, but FID-in-LMA is lost.
7079 * Trust the FID-in-dirent, and add FID-in-LMA.
7081 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
7083 *attr |= LUDA_REPAIR;
7085 CDEBUG(D_LFSCK, "%s: fail to set LMA for "
7086 "update dirent, dir = %lu/%u, "
7087 "name = %.*s, ino = %llu, "
7089 devname, dir->i_ino, dir->i_generation,
7090 ent->oied_namelen, ent->oied_name,
7091 ent->oied_ino, PFID(fid), rc);
7092 } else if (dev->od_index == 0) {
7093 lu_igif_build(fid, inode->i_ino, inode->i_generation);
7095 * It is probably IGIF object. Only aappend the
7096 * FID-in-dirent. OI scrub will process FID-in-LMA.
7098 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
7099 bh, de, hlock, dotdot);
7101 *attr |= LUDA_UPGRADE;
7103 CDEBUG(D_LFSCK, "%s: fail to append IGIF "
7104 "after the dirent, dir = %lu/%u, "
7105 "name = %.*s, ino = %llu, "
7107 devname, dir->i_ino, dir->i_generation,
7108 ent->oied_namelen, ent->oied_name,
7109 ent->oied_ino, PFID(fid), rc);
7118 if (hlock != NULL) {
7119 ldiskfs_htree_unlock(hlock);
7121 if (dev->od_dirent_journal != 0)
7122 up_write(&obj->oo_ext_idx_sem);
7124 up_read(&obj->oo_ext_idx_sem);
7128 ldiskfs_journal_stop(jh);
7132 if (rc >= 0 && !dirty)
7133 dev->od_dirent_journal = 0;
7139 * Returns the value at current position from iterator's in memory structure.
7141 * \param di struct osd_it_ea, iterator's in memory structure
7142 * \param attr attr requested for dirent.
7143 * \param lde lustre dirent
7145 * \retval 0 no error and \param lde has correct lustre dirent.
7146 * \retval -ve on error
7148 static inline int osd_it_ea_rec(const struct lu_env *env,
7149 const struct dt_it *di,
7150 struct dt_rec *dtrec, __u32 attr)
7152 struct osd_it_ea *it = (struct osd_it_ea *)di;
7153 struct osd_object *obj = it->oie_obj;
7154 struct osd_device *dev = osd_obj2dev(obj);
7155 struct osd_thread_info *oti = osd_oti_get(env);
7156 struct osd_inode_id *id = &oti->oti_id;
7157 struct lu_fid *fid = &it->oie_dirent->oied_fid;
7158 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
7159 __u32 ino = it->oie_dirent->oied_ino;
7164 LASSERT(!is_remote_parent_ino(dev, obj->oo_inode->i_ino));
7166 if (attr & LUDA_VERIFY) {
7167 if (unlikely(is_remote_parent_ino(dev, ino))) {
7168 attr |= LUDA_IGNORE;
7170 * If the parent is on remote MDT, and there
7171 * is no FID-in-dirent, then we have to get
7172 * the parent FID from the linkEA.
7174 if (!fid_is_sane(fid) &&
7175 it->oie_dirent->oied_namelen == 2 &&
7176 it->oie_dirent->oied_name[0] == '.' &&
7177 it->oie_dirent->oied_name[1] == '.')
7178 osd_get_pfid_from_linkea(env, obj, fid);
7180 rc = osd_dirent_check_repair(env, obj, it, fid, id,
7184 if (!fid_is_sane(fid))
7185 attr |= LUDA_UNKNOWN;
7187 attr &= ~LU_DIRENT_ATTRS_MASK;
7188 if (!fid_is_sane(fid)) {
7189 bool is_dotdot = false;
7191 if (it->oie_dirent->oied_namelen == 2 &&
7192 it->oie_dirent->oied_name[0] == '.' &&
7193 it->oie_dirent->oied_name[1] == '.')
7196 * If the parent is on remote MDT, and there
7197 * is no FID-in-dirent, then we have to get
7198 * the parent FID from the linkEA.
7200 if (is_remote_parent_ino(dev, ino) && is_dotdot) {
7201 rc = osd_get_pfid_from_linkea(env, obj, fid);
7203 if (is_dotdot == false &&
7204 OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP))
7207 rc = osd_ea_fid_get(env, obj, ino, fid, id);
7210 osd_id_gen(id, ino, OSD_OII_NOGEN);
7214 /* Pack the entry anyway, at least the offset is right. */
7215 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
7216 it->oie_dirent->oied_name,
7217 it->oie_dirent->oied_namelen,
7218 it->oie_dirent->oied_type, attr);
7223 if (osd_remote_fid(env, dev, fid))
7226 if (likely(!(attr & (LUDA_IGNORE | LUDA_UNKNOWN)) && rc == 0))
7227 osd_add_oi_cache(oti, dev, id, fid);
7229 RETURN(rc > 0 ? 0 : rc);
7233 * Returns the record size size at current position.
7235 * This function will return record(lu_dirent) size in bytes.
7237 * \param[in] env execution environment
7238 * \param[in] di iterator's in memory structure
7239 * \param[in] attr attribute of the entry, only requires LUDA_TYPE to
7240 * calculate the lu_dirent size.
7242 * \retval record size(in bytes & in memory) of the current lu_dirent
7245 static int osd_it_ea_rec_size(const struct lu_env *env, const struct dt_it *di,
7248 struct osd_it_ea *it = (struct osd_it_ea *)di;
7250 return lu_dirent_calc_size(it->oie_dirent->oied_namelen, attr);
7254 * Returns a cookie for current position of the iterator head, so that
7255 * user can use this cookie to load/start the iterator next time.
7257 * \param di iterator's in memory structure
7259 * \retval cookie for current position, on success
7261 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
7263 struct osd_it_ea *it = (struct osd_it_ea *)di;
7265 return it->oie_dirent->oied_off;
7269 * It calls osd_ldiskfs_it_fill() which will use ->iterate*()
7270 * to load a directory entry at a time and stored it i inn,
7271 * in iterator's in-memory data structure.
7273 * \param di struct osd_it_ea, iterator's in memory structure
7275 * \retval +ve on success
7276 * \retval -ve on error
7278 static int osd_it_ea_load(const struct lu_env *env,
7279 const struct dt_it *di, __u64 hash)
7281 struct osd_it_ea *it = (struct osd_it_ea *)di;
7285 it->oie_file.f_pos = hash;
7287 rc = osd_ldiskfs_it_fill(env, di);
7298 * Index lookup function for interoperability mode (b11826).
7300 * \param key, key i.e. file name to be searched
7302 * \retval +ve, on success
7303 * \retval -ve, on error
7305 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
7306 struct dt_rec *rec, const struct dt_key *key)
7308 struct osd_object *obj = osd_dt_obj(dt);
7313 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
7314 LINVRNT(osd_invariant(obj));
7316 rc = osd_ea_lookup_rec(env, obj, rec, key);
7323 * Index and Iterator operations for interoperability
7324 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
7326 static const struct dt_index_operations osd_index_ea_ops = {
7327 .dio_lookup = osd_index_ea_lookup,
7328 .dio_declare_insert = osd_index_declare_ea_insert,
7329 .dio_insert = osd_index_ea_insert,
7330 .dio_declare_delete = osd_index_declare_ea_delete,
7331 .dio_delete = osd_index_ea_delete,
7333 .init = osd_it_ea_init,
7334 .fini = osd_it_ea_fini,
7335 .get = osd_it_ea_get,
7336 .put = osd_it_ea_put,
7337 .next = osd_it_ea_next,
7338 .key = osd_it_ea_key,
7339 .key_size = osd_it_ea_key_size,
7340 .rec = osd_it_ea_rec,
7341 .rec_size = osd_it_ea_rec_size,
7342 .store = osd_it_ea_store,
7343 .load = osd_it_ea_load
7347 static void *osd_key_init(const struct lu_context *ctx,
7348 struct lu_context_key *key)
7350 struct osd_thread_info *info;
7352 OBD_ALLOC_PTR(info);
7354 return ERR_PTR(-ENOMEM);
7356 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7357 if (info->oti_it_ea_buf == NULL)
7360 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
7362 info->oti_hlock = ldiskfs_htree_lock_alloc();
7363 if (info->oti_hlock == NULL)
7369 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7372 return ERR_PTR(-ENOMEM);
7375 static void osd_key_fini(const struct lu_context *ctx,
7376 struct lu_context_key *key, void *data)
7378 struct osd_thread_info *info = data;
7379 struct ldiskfs_inode_info *lli = LDISKFS_I(info->oti_inode);
7380 struct osd_idmap_cache *idc = info->oti_ins_cache;
7382 if (info->oti_dio_pages) {
7384 for (i = 0; i < PTLRPC_MAX_BRW_PAGES; i++) {
7385 if (info->oti_dio_pages[i])
7386 __free_page(info->oti_dio_pages[i]);
7388 OBD_FREE(info->oti_dio_pages,
7389 sizeof(struct page *) * PTLRPC_MAX_BRW_PAGES);
7392 if (info->oti_inode != NULL)
7394 if (info->oti_hlock != NULL)
7395 ldiskfs_htree_lock_free(info->oti_hlock);
7396 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7397 lu_buf_free(&info->oti_iobuf.dr_pg_buf);
7398 lu_buf_free(&info->oti_iobuf.dr_bl_buf);
7399 lu_buf_free(&info->oti_iobuf.dr_lnb_buf);
7400 lu_buf_free(&info->oti_big_buf);
7402 LASSERT(info->oti_ins_cache_size > 0);
7403 OBD_FREE(idc, sizeof(*idc) * info->oti_ins_cache_size);
7404 info->oti_ins_cache = NULL;
7405 info->oti_ins_cache_size = 0;
7410 static void osd_key_exit(const struct lu_context *ctx,
7411 struct lu_context_key *key, void *data)
7413 struct osd_thread_info *info = data;
7415 LASSERT(info->oti_r_locks == 0);
7416 LASSERT(info->oti_w_locks == 0);
7417 LASSERT(info->oti_txns == 0);
7420 /* type constructor/destructor: osd_type_init, osd_type_fini */
7421 LU_TYPE_INIT_FINI(osd, &osd_key);
7423 struct lu_context_key osd_key = {
7424 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
7425 .lct_init = osd_key_init,
7426 .lct_fini = osd_key_fini,
7427 .lct_exit = osd_key_exit
7431 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
7432 const char *name, struct lu_device *next)
7434 struct osd_device *osd = osd_dev(d);
7436 if (strlcpy(osd->od_svname, name, sizeof(osd->od_svname)) >=
7437 sizeof(osd->od_svname))
7439 return osd_procfs_init(osd, name);
7442 static int osd_fid_init(const struct lu_env *env, struct osd_device *osd)
7444 struct seq_server_site *ss = osd_seq_site(osd);
7449 if (osd->od_is_ost || osd->od_cl_seq != NULL)
7452 if (unlikely(ss == NULL))
7455 OBD_ALLOC_PTR(osd->od_cl_seq);
7456 if (osd->od_cl_seq == NULL)
7459 rc = seq_client_init(osd->od_cl_seq, NULL, LUSTRE_SEQ_METADATA,
7460 osd->od_svname, ss->ss_server_seq);
7462 OBD_FREE_PTR(osd->od_cl_seq);
7463 osd->od_cl_seq = NULL;
7467 if (ss->ss_node_id == 0) {
7469 * If the OSD on the sequence controller(MDT0), then allocate
7470 * sequence here, otherwise allocate sequence after connected
7471 * to MDT0 (see mdt_register_lwp_callback()).
7473 rc = seq_server_alloc_meta(osd->od_cl_seq->lcs_srv,
7474 &osd->od_cl_seq->lcs_space, env);
7480 static void osd_fid_fini(const struct lu_env *env, struct osd_device *osd)
7482 if (osd->od_cl_seq == NULL)
7485 seq_client_fini(osd->od_cl_seq);
7486 OBD_FREE_PTR(osd->od_cl_seq);
7487 osd->od_cl_seq = NULL;
7490 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
7494 /* shutdown quota slave instance associated with the device */
7495 if (o->od_quota_slave_md != NULL) {
7496 struct qsd_instance *qsd = o->od_quota_slave_md;
7498 o->od_quota_slave_md = NULL;
7502 if (o->od_quota_slave_dt != NULL) {
7503 struct qsd_instance *qsd = o->od_quota_slave_dt;
7505 o->od_quota_slave_dt = NULL;
7509 osd_fid_fini(env, o);
7510 osd_scrub_cleanup(env, o);
7515 static void osd_umount(const struct lu_env *env, struct osd_device *o)
7519 if (o->od_mnt != NULL) {
7520 shrink_dcache_sb(osd_sb(o));
7521 osd_sync(env, &o->od_dt_dev);
7530 static int osd_mount(const struct lu_env *env,
7531 struct osd_device *o, struct lustre_cfg *cfg)
7533 const char *name = lustre_cfg_string(cfg, 0);
7534 const char *dev = lustre_cfg_string(cfg, 1);
7536 unsigned long page, s_flags, lmd_flags = 0;
7537 struct page *__page;
7538 struct file_system_type *type;
7539 char *options = NULL;
7541 struct osd_thread_info *info = osd_oti_get(env);
7542 struct lu_fid *fid = &info->oti_fid;
7543 struct inode *inode;
7544 int rc = 0, force_over_512tb = 0;
7548 if (o->od_mnt != NULL)
7551 if (strlen(dev) >= sizeof(o->od_mntdev))
7553 strcpy(o->od_mntdev, dev);
7555 str = lustre_cfg_string(cfg, 2);
7556 s_flags = simple_strtoul(str, NULL, 0);
7557 str = strstr(str, ":");
7559 lmd_flags = simple_strtoul(str + 1, NULL, 0);
7560 opts = lustre_cfg_string(cfg, 3);
7562 if (opts == NULL || strstr(opts, "bigendian_extents") == NULL) {
7563 CERROR("%s: device %s extents feature is not guaranteed to "
7564 "work on big-endian systems. Use \"bigendian_extents\" "
7565 "mount option to override.\n", name, dev);
7569 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7570 if (opts != NULL && strstr(opts, "force_over_128tb") != NULL) {
7571 CWARN("force_over_128tb option is deprecated. "
7572 "Filesystems less than 512TB can be created without any "
7573 "force options. Use force_over_512tb option for "
7574 "filesystems greater than 512TB.\n");
7577 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 1, 53, 0)
7578 if (opts != NULL && strstr(opts, "force_over_256tb") != NULL) {
7579 CWARN("force_over_256tb option is deprecated. "
7580 "Filesystems less than 512TB can be created without any "
7581 "force options. Use force_over_512tb option for "
7582 "filesystems greater than 512TB.\n");
7586 if (opts != NULL && strstr(opts, "force_over_512tb") != NULL)
7587 force_over_512tb = 1;
7589 __page = alloc_page(GFP_KERNEL);
7591 GOTO(out, rc = -ENOMEM);
7592 page = (unsigned long)page_address(__page);
7593 options = (char *)page;
7596 /* strip out the options for back compatiblity */
7597 static char *sout[] = {
7604 /* strip out option we processed in osd */
7605 "bigendian_extents",
7611 strncat(options, opts, PAGE_SIZE);
7612 for (rc = 0, str = options; sout[rc]; ) {
7613 char *op = strstr(str, sout[rc]);
7620 if (op == options || *(op - 1) == ',') {
7621 str = op + strlen(sout[rc]);
7622 if (*str == ',' || *str == '\0') {
7623 *str == ',' ? str++ : str;
7624 memmove(op, str, strlen(str) + 1);
7627 for (str = op; *str != ',' && *str != '\0'; str++)
7631 strncat(options, "user_xattr,acl", PAGE_SIZE);
7634 /* Glom up mount options */
7635 if (*options != '\0')
7636 strncat(options, ",", PAGE_SIZE);
7637 strncat(options, "no_mbcache,nodelalloc", PAGE_SIZE);
7639 type = get_fs_type("ldiskfs");
7641 CERROR("%s: cannot find ldiskfs module\n", name);
7642 GOTO(out, rc = -ENODEV);
7645 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
7646 module_put(type->owner);
7648 if (IS_ERR(o->od_mnt)) {
7649 rc = PTR_ERR(o->od_mnt);
7651 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
7655 if (ldiskfs_blocks_count(LDISKFS_SB(osd_sb(o))->s_es) <<
7656 osd_sb(o)->s_blocksize_bits > 512ULL << 40 &&
7657 force_over_512tb == 0) {
7658 CERROR("%s: device %s LDISKFS does not support filesystems "
7659 "greater than 512TB and can cause data corruption. "
7660 "Use \"force_over_512tb\" mount option to override.\n",
7662 GOTO(out_mnt, rc = -EINVAL);
7665 if (lmd_flags & LMD_FLG_DEV_RDONLY) {
7666 if (priv_dev_set_rdonly) {
7667 priv_dev_set_rdonly(osd_sb(o)->s_bdev);
7668 o->od_dt_dev.dd_rdonly = 1;
7669 LCONSOLE_WARN("%s: set dev_rdonly on this device\n",
7672 LCONSOLE_WARN("%s: not support dev_rdonly on this device",
7675 GOTO(out_mnt, rc = -EOPNOTSUPP);
7677 } else if (priv_dev_check_rdonly &&
7678 priv_dev_check_rdonly(osd_sb(o)->s_bdev)) {
7679 CERROR("%s: underlying device %s is marked as "
7680 "read-only. Setup failed\n", name, dev);
7682 GOTO(out_mnt, rc = -EROFS);
7685 if (!ldiskfs_has_feature_journal(o->od_mnt->mnt_sb)) {
7686 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
7687 GOTO(out_mnt, rc = -EINVAL);
7690 #ifdef LDISKFS_MOUNT_DIRDATA
7691 if (ldiskfs_has_feature_dirdata(o->od_mnt->mnt_sb))
7692 LDISKFS_SB(osd_sb(o))->s_mount_opt |= LDISKFS_MOUNT_DIRDATA;
7693 else if (strstr(name, "MDT")) /* don't complain for MGT or OSTs */
7694 CWARN("%s: device %s was upgraded from Lustre-1.x without "
7695 "enabling the dirdata feature. If you do not want to "
7696 "downgrade to Lustre-1.x again, you can enable it via "
7697 "'tune2fs -O dirdata device'\n", name, dev);
7699 inode = osd_sb(o)->s_root->d_inode;
7700 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
7701 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
7703 CERROR("%s: failed to set lma on %s root inode\n", name, dev);
7707 if (lmd_flags & LMD_FLG_NOSCRUB)
7708 o->od_auto_scrub_interval = AS_NEVER;
7710 if (blk_queue_nonrot(bdev_get_queue(osd_sb(o)->s_bdev))) {
7711 /* do not use pagecache with flash-backed storage */
7712 o->od_writethrough_cache = 0;
7713 o->od_read_cache = 0;
7724 __free_page(__page);
7729 static struct lu_device *osd_device_fini(const struct lu_env *env,
7730 struct lu_device *d)
7732 struct osd_device *o = osd_dev(d);
7736 osd_index_backup(env, o, false);
7737 osd_shutdown(env, o);
7739 osd_obj_map_fini(o);
7745 static int osd_device_init0(const struct lu_env *env,
7746 struct osd_device *o,
7747 struct lustre_cfg *cfg)
7749 struct lu_device *l = osd2lu_dev(o);
7750 struct osd_thread_info *info;
7754 /* if the module was re-loaded, env can loose its keys */
7755 rc = lu_env_refill((struct lu_env *)env);
7758 info = osd_oti_get(env);
7761 l->ld_ops = &osd_lu_ops;
7762 o->od_dt_dev.dd_ops = &osd_dt_ops;
7764 spin_lock_init(&o->od_osfs_lock);
7765 mutex_init(&o->od_otable_mutex);
7766 INIT_LIST_HEAD(&o->od_orphan_list);
7767 INIT_LIST_HEAD(&o->od_index_backup_list);
7768 INIT_LIST_HEAD(&o->od_index_restore_list);
7769 spin_lock_init(&o->od_lock);
7770 o->od_index_backup_policy = LIBP_NONE;
7773 o->od_read_cache = 1;
7774 o->od_writethrough_cache = 1;
7775 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
7776 o->od_readcache_max_iosize = OSD_READCACHE_MAX_IO_MB << 20;
7777 o->od_writethrough_max_iosize = OSD_WRITECACHE_MAX_IO_MB << 20;
7778 o->od_auto_scrub_interval = AS_DEFAULT;
7780 cplen = strlcpy(o->od_svname, lustre_cfg_string(cfg, 4),
7781 sizeof(o->od_svname));
7782 if (cplen >= sizeof(o->od_svname)) {
7787 o->od_index_backup_stop = 0;
7788 o->od_index = -1; /* -1 means index is invalid */
7789 rc = server_name2index(o->od_svname, &o->od_index, NULL);
7790 if (rc == LDD_F_SV_TYPE_OST)
7793 o->od_full_scrub_ratio = OFSR_DEFAULT;
7794 o->od_full_scrub_threshold_rate = FULL_SCRUB_THRESHOLD_RATE_DEFAULT;
7795 rc = osd_mount(env, o, cfg);
7799 /* Can only check block device after mount */
7800 o->od_nonrotational =
7801 blk_queue_nonrot(bdev_get_queue(osd_sb(o)->s_bdev));
7803 rc = osd_obj_map_init(env, o);
7807 rc = lu_site_init(&o->od_site, l);
7809 GOTO(out_compat, rc);
7810 o->od_site.ls_bottom_dev = l;
7812 rc = lu_site_init_finish(&o->od_site);
7816 INIT_LIST_HEAD(&o->od_ios_list);
7817 /* setup scrub, including OI files initialization */
7819 rc = osd_scrub_setup(env, o);
7824 rc = osd_procfs_init(o, o->od_svname);
7826 CERROR("%s: can't initialize procfs: rc = %d\n",
7828 GOTO(out_scrub, rc);
7831 LASSERT(l->ld_site->ls_linkage.next != NULL);
7832 LASSERT(l->ld_site->ls_linkage.prev != NULL);
7834 /* initialize quota slave instance */
7835 /* currently it's no need to prepare qsd_instance_md for OST */
7836 if (!o->od_is_ost) {
7837 o->od_quota_slave_md = qsd_init(env, o->od_svname,
7839 o->od_proc_entry, true);
7840 if (IS_ERR(o->od_quota_slave_md)) {
7841 rc = PTR_ERR(o->od_quota_slave_md);
7842 o->od_quota_slave_md = NULL;
7843 GOTO(out_procfs, rc);
7847 o->od_quota_slave_dt = qsd_init(env, o->od_svname, &o->od_dt_dev,
7848 o->od_proc_entry, false);
7850 if (IS_ERR(o->od_quota_slave_dt)) {
7851 if (o->od_quota_slave_md != NULL) {
7852 qsd_fini(env, o->od_quota_slave_md);
7853 o->od_quota_slave_md = NULL;
7856 rc = PTR_ERR(o->od_quota_slave_dt);
7857 o->od_quota_slave_dt = NULL;
7858 GOTO(out_procfs, rc);
7866 osd_scrub_cleanup(env, o);
7868 lu_site_fini(&o->od_site);
7870 osd_obj_map_fini(o);
7877 static struct lu_device *osd_device_alloc(const struct lu_env *env,
7878 struct lu_device_type *t,
7879 struct lustre_cfg *cfg)
7881 struct osd_device *o;
7886 return ERR_PTR(-ENOMEM);
7888 rc = dt_device_init(&o->od_dt_dev, t);
7891 * Because the ctx might be revived in dt_device_init,
7892 * refill the env here
7894 lu_env_refill((struct lu_env *)env);
7895 rc = osd_device_init0(env, o, cfg);
7897 dt_device_fini(&o->od_dt_dev);
7900 if (unlikely(rc != 0))
7903 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
7906 static struct lu_device *osd_device_free(const struct lu_env *env,
7907 struct lu_device *d)
7909 struct osd_device *o = osd_dev(d);
7913 /* XXX: make osd top device in order to release reference */
7914 d->ld_site->ls_top_dev = d;
7915 lu_site_purge(env, d->ld_site, -1);
7916 if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
7917 LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
7918 lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
7920 lu_site_fini(&o->od_site);
7921 dt_device_fini(&o->od_dt_dev);
7926 static int osd_process_config(const struct lu_env *env,
7927 struct lu_device *d, struct lustre_cfg *cfg)
7929 struct osd_device *o = osd_dev(d);
7935 switch (cfg->lcfg_command) {
7937 rc = osd_mount(env, o, cfg);
7941 * For the case LCFG_PRE_CLEANUP is not called in advance,
7942 * that may happend if hit failure during mount process.
7944 osd_index_backup(env, o, false);
7945 lu_dev_del_linkage(d->ld_site, d);
7946 rc = osd_shutdown(env, o);
7949 LASSERT(&o->od_dt_dev);
7950 count = class_modify_config(cfg, PARAM_OSD,
7951 &o->od_dt_dev.dd_kobj);
7953 count = class_modify_config(cfg, PARAM_OST,
7954 &o->od_dt_dev.dd_kobj);
7955 rc = count > 0 ? 0 : count;
7957 case LCFG_PRE_CLEANUP:
7959 osd_index_backup(env, o,
7960 o->od_index_backup_policy != LIBP_NONE);
7970 static int osd_recovery_complete(const struct lu_env *env,
7971 struct lu_device *d)
7973 struct osd_device *osd = osd_dev(d);
7978 if (osd->od_quota_slave_md == NULL && osd->od_quota_slave_dt == NULL)
7982 * start qsd instance on recovery completion, this notifies the quota
7983 * slave code that we are about to process new requests now
7985 rc = qsd_start(env, osd->od_quota_slave_dt);
7986 if (rc == 0 && osd->od_quota_slave_md != NULL)
7987 rc = qsd_start(env, osd->od_quota_slave_md);
7993 * we use exports to track all osd users
7995 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
7996 struct obd_device *obd, struct obd_uuid *cluuid,
7997 struct obd_connect_data *data, void *localdata)
7999 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8000 struct lustre_handle conn;
8005 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
8007 rc = class_connect(&conn, obd, cluuid);
8011 *exp = class_conn2export(&conn);
8013 spin_lock(&osd->od_osfs_lock);
8015 spin_unlock(&osd->od_osfs_lock);
8021 * once last export (we don't count self-export) disappeared
8022 * osd can be released
8024 static int osd_obd_disconnect(struct obd_export *exp)
8026 struct obd_device *obd = exp->exp_obd;
8027 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8028 int rc, release = 0;
8032 /* Only disconnect the underlying layers on the final disconnect. */
8033 spin_lock(&osd->od_osfs_lock);
8035 if (osd->od_connects == 0)
8037 spin_unlock(&osd->od_osfs_lock);
8039 rc = class_disconnect(exp); /* bz 9811 */
8041 if (rc == 0 && release)
8042 class_manual_cleanup(obd);
8046 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
8047 struct lu_device *dev)
8049 struct osd_device *osd = osd_dev(dev);
8050 struct lr_server_data *lsd =
8051 &osd->od_dt_dev.dd_lu_dev.ld_site->ls_tgt->lut_lsd;
8056 if (osd->od_quota_slave_md != NULL) {
8057 /* set up quota slave objects for inode */
8058 result = qsd_prepare(env, osd->od_quota_slave_md);
8063 if (osd->od_quota_slave_dt != NULL) {
8064 /* set up quota slave objects for block */
8065 result = qsd_prepare(env, osd->od_quota_slave_dt);
8071 if (lsd->lsd_feature_incompat & OBD_COMPAT_OST) {
8072 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
8073 if (lsd->lsd_feature_rocompat & OBD_ROCOMPAT_IDX_IN_IDIF) {
8074 osd->od_index_in_idif = 1;
8076 osd->od_index_in_idif = 0;
8077 result = osd_register_proc_index_in_idif(osd);
8082 osd->od_index_in_idif = 1;
8086 result = osd_fid_init(env, osd);
8091 static int osd_fid_alloc(const struct lu_env *env, struct obd_export *exp,
8092 struct lu_fid *fid, struct md_op_data *op_data)
8094 struct osd_device *osd = osd_dev(exp->exp_obd->obd_lu_dev);
8096 return seq_client_alloc_fid(env, osd->od_cl_seq, fid);
8099 static const struct lu_object_operations osd_lu_obj_ops = {
8100 .loo_object_init = osd_object_init,
8101 .loo_object_delete = osd_object_delete,
8102 .loo_object_release = osd_object_release,
8103 .loo_object_free = osd_object_free,
8104 .loo_object_print = osd_object_print,
8105 .loo_object_invariant = osd_object_invariant
8108 const struct lu_device_operations osd_lu_ops = {
8109 .ldo_object_alloc = osd_object_alloc,
8110 .ldo_process_config = osd_process_config,
8111 .ldo_recovery_complete = osd_recovery_complete,
8112 .ldo_prepare = osd_prepare,
8115 static const struct lu_device_type_operations osd_device_type_ops = {
8116 .ldto_init = osd_type_init,
8117 .ldto_fini = osd_type_fini,
8119 .ldto_start = osd_type_start,
8120 .ldto_stop = osd_type_stop,
8122 .ldto_device_alloc = osd_device_alloc,
8123 .ldto_device_free = osd_device_free,
8125 .ldto_device_init = osd_device_init,
8126 .ldto_device_fini = osd_device_fini
8129 static struct lu_device_type osd_device_type = {
8130 .ldt_tags = LU_DEVICE_DT,
8131 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
8132 .ldt_ops = &osd_device_type_ops,
8133 .ldt_ctx_tags = LCT_LOCAL,
8136 static int osd_health_check(const struct lu_env *env, struct obd_device *obd)
8138 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8139 struct super_block *sb = osd_sb(osd);
8141 return (osd->od_mnt == NULL || sb->s_flags & SB_RDONLY);
8145 * lprocfs legacy support.
8147 static const struct obd_ops osd_obd_device_ops = {
8148 .o_owner = THIS_MODULE,
8149 .o_connect = osd_obd_connect,
8150 .o_disconnect = osd_obd_disconnect,
8151 .o_fid_alloc = osd_fid_alloc,
8152 .o_health_check = osd_health_check,
8155 static ssize_t track_declares_assert_show(struct kobject *kobj,
8156 struct attribute *attr,
8159 return sprintf(buf, "%d\n", ldiskfs_track_declares_assert);
8162 static ssize_t track_declares_assert_store(struct kobject *kobj,
8163 struct attribute *attr,
8164 const char *buffer, size_t count)
8166 bool track_declares_assert;
8169 rc = kstrtobool(buffer, &track_declares_assert);
8173 ldiskfs_track_declares_assert = track_declares_assert;
8177 LUSTRE_RW_ATTR(track_declares_assert);
8179 static int __init osd_init(void)
8181 struct kobject *kobj;
8184 BUILD_BUG_ON(BH_DXLock >=
8185 sizeof(((struct buffer_head *)0)->b_state) * 8);
8186 #if !defined(CONFIG_DEBUG_MUTEXES) && !defined(CONFIG_DEBUG_SPINLOCK)
8187 /* please, try to keep osd_thread_info smaller than a page */
8188 BUILD_BUG_ON(sizeof(struct osd_thread_info) > PAGE_SIZE);
8193 rc = lu_kmem_init(ldiskfs_caches);
8197 #ifdef CONFIG_KALLSYMS
8198 priv_security_file_alloc =
8199 (void *)kallsyms_lookup_name("security_file_alloc");
8200 priv_dev_set_rdonly = (void *)kallsyms_lookup_name("dev_set_rdonly");
8201 priv_dev_check_rdonly =
8202 (void *)kallsyms_lookup_name("dev_check_rdonly");
8205 rc = class_register_type(&osd_obd_device_ops, NULL, true, NULL,
8206 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
8208 lu_kmem_fini(ldiskfs_caches);
8212 kobj = kset_find_obj(lustre_kset, LUSTRE_OSD_LDISKFS_NAME);
8214 rc = sysfs_create_file(kobj,
8215 &lustre_attr_track_declares_assert.attr);
8218 CWARN("osd-ldiskfs: track_declares_assert failed to register with sysfs\n");
8225 static void __exit osd_exit(void)
8227 struct kobject *kobj;
8229 kobj = kset_find_obj(lustre_kset, LUSTRE_OSD_LDISKFS_NAME);
8231 sysfs_remove_file(kobj,
8232 &lustre_attr_track_declares_assert.attr);
8235 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
8236 lu_kmem_fini(ldiskfs_caches);
8239 MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
8240 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
8241 MODULE_VERSION(LUSTRE_VERSION_STRING);
8242 MODULE_LICENSE("GPL");
8244 module_init(osd_init);
8245 module_exit(osd_exit);