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/fs_struct.h>
43 #include <linux/kallsyms.h>
44 #include <linux/module.h>
45 #include <linux/user_namespace.h>
46 #include <linux/uidgid.h>
48 /* prerequisite for linux/xattr.h */
49 #include <linux/types.h>
50 /* prerequisite for linux/xattr.h */
52 /* XATTR_{REPLACE,CREATE} */
53 #include <linux/xattr.h>
55 #include <ldiskfs/ldiskfs.h>
56 #include <ldiskfs/xattr.h>
57 #include <ldiskfs/ldiskfs_extents.h>
60 * struct OBD_{ALLOC,FREE}*()
63 #include <obd_support.h>
64 /* struct ptlrpc_thread */
65 #include <lustre_net.h>
66 #include <lustre_fid.h>
68 #include <uapi/linux/lustre/lustre_param.h>
70 #include "osd_internal.h"
71 #include "osd_dynlocks.h"
73 /* llo_* api support */
74 #include <md_object.h>
75 #include <lustre_quota.h>
77 #include <lustre_linkea.h>
79 /* Maximum EA size is limited by LNET_MTU for remote objects */
80 #define OSD_MAX_EA_SIZE 1048364
83 module_param(ldiskfs_pdo, int, 0644);
84 MODULE_PARM_DESC(ldiskfs_pdo, "ldiskfs with parallel directory operations");
86 int ldiskfs_track_declares_assert;
87 module_param(ldiskfs_track_declares_assert, int, 0644);
88 MODULE_PARM_DESC(ldiskfs_track_declares_assert, "LBUG during tracking of declares");
90 /* Slab to allocate dynlocks */
91 struct kmem_cache *dynlock_cachep;
93 /* Slab to allocate osd_it_ea */
94 struct kmem_cache *osd_itea_cachep;
96 static struct lu_kmem_descr ldiskfs_caches[] = {
98 .ckd_cache = &dynlock_cachep,
99 .ckd_name = "dynlock_cache",
100 .ckd_size = sizeof(struct dynlock_handle)
103 .ckd_cache = &osd_itea_cachep,
104 .ckd_name = "osd_itea_cache",
105 .ckd_size = sizeof(struct osd_it_ea)
112 static const char dot[] = ".";
113 static const char dotdot[] = "..";
115 static const struct lu_object_operations osd_lu_obj_ops;
116 static const struct dt_object_operations osd_obj_ops;
117 static const struct dt_object_operations osd_obj_otable_it_ops;
118 static const struct dt_index_operations osd_index_iam_ops;
119 static const struct dt_index_operations osd_index_ea_ops;
121 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
122 const struct lu_fid *fid);
123 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
124 struct osd_device *osd);
126 int osd_trans_declare_op2rb[] = {
127 [OSD_OT_ATTR_SET] = OSD_OT_ATTR_SET,
128 [OSD_OT_PUNCH] = OSD_OT_MAX,
129 [OSD_OT_XATTR_SET] = OSD_OT_XATTR_SET,
130 [OSD_OT_CREATE] = OSD_OT_DESTROY,
131 [OSD_OT_DESTROY] = OSD_OT_CREATE,
132 [OSD_OT_REF_ADD] = OSD_OT_REF_DEL,
133 [OSD_OT_REF_DEL] = OSD_OT_REF_ADD,
134 [OSD_OT_WRITE] = OSD_OT_WRITE,
135 [OSD_OT_INSERT] = OSD_OT_DELETE,
136 [OSD_OT_DELETE] = OSD_OT_INSERT,
137 [OSD_OT_QUOTA] = OSD_OT_MAX,
140 static int osd_has_index(const struct osd_object *obj)
142 return obj->oo_dt.do_index_ops != NULL;
145 static int osd_object_invariant(const struct lu_object *l)
147 return osd_invariant(osd_obj(l));
151 * Concurrency: doesn't matter
153 static int osd_is_write_locked(const struct lu_env *env, struct osd_object *o)
155 struct osd_thread_info *oti = osd_oti_get(env);
157 return oti->oti_w_locks > 0 && o->oo_owner == env;
161 * Concurrency: doesn't access mutable data
163 static int osd_root_get(const struct lu_env *env,
164 struct dt_device *dev, struct lu_fid *f)
166 lu_local_obj_fid(f, OSD_FS_ROOT_OID);
171 * the following set of functions are used to maintain per-thread
172 * cache of FID->ino mapping. this mechanism is needed to resolve
173 * FID to inode at dt_insert() which in turn stores ino in the
174 * directory entries to keep ldiskfs compatible with ext[34].
175 * due to locking-originated restrictions we can't lookup ino
176 * using LU cache (deadlock is possible). lookup using OI is quite
177 * expensive. so instead we maintain this cache and methods like
178 * dt_create() fill it. so in the majority of cases dt_insert() is
179 * able to find needed mapping in lockless manner.
181 static struct osd_idmap_cache *
182 osd_idc_find(const struct lu_env *env, struct osd_device *osd,
183 const struct lu_fid *fid)
185 struct osd_thread_info *oti = osd_oti_get(env);
186 struct osd_idmap_cache *idc = oti->oti_ins_cache;
189 for (i = 0; i < oti->oti_ins_cache_used; i++) {
190 if (!lu_fid_eq(&idc[i].oic_fid, fid))
192 if (idc[i].oic_dev != osd)
201 static struct osd_idmap_cache *
202 osd_idc_add(const struct lu_env *env, struct osd_device *osd,
203 const struct lu_fid *fid)
205 struct osd_thread_info *oti = osd_oti_get(env);
206 struct osd_idmap_cache *idc;
209 if (unlikely(oti->oti_ins_cache_used >= oti->oti_ins_cache_size)) {
210 i = oti->oti_ins_cache_size * 2;
212 i = OSD_INS_CACHE_SIZE;
213 OBD_ALLOC_PTR_ARRAY(idc, i);
215 return ERR_PTR(-ENOMEM);
216 if (oti->oti_ins_cache != NULL) {
217 memcpy(idc, oti->oti_ins_cache,
218 oti->oti_ins_cache_used * sizeof(*idc));
219 OBD_FREE_PTR_ARRAY(oti->oti_ins_cache,
220 oti->oti_ins_cache_used);
222 oti->oti_ins_cache = idc;
223 oti->oti_ins_cache_size = i;
226 idc = oti->oti_ins_cache + oti->oti_ins_cache_used++;
229 idc->oic_lid.oii_ino = 0;
230 idc->oic_lid.oii_gen = 0;
237 * lookup mapping for the given fid in the cache, initialize a
238 * new one if not found. the initialization checks whether the
239 * object is local or remote. for local objects, OI is used to
240 * learn ino/generation. the function is used when the caller
241 * has no information about the object, e.g. at dt_insert().
243 static struct osd_idmap_cache *
244 osd_idc_find_or_init(const struct lu_env *env, struct osd_device *osd,
245 const struct lu_fid *fid)
247 struct osd_idmap_cache *idc;
250 idc = osd_idc_find(env, osd, fid);
251 LASSERT(!IS_ERR(idc));
255 CDEBUG(D_INODE, "%s: FID "DFID" not in the id map cache\n",
256 osd->od_svname, PFID(fid));
258 /* new mapping is needed */
259 idc = osd_idc_add(env, osd, fid);
261 CERROR("%s: FID "DFID" add id map cache failed: %ld\n",
262 osd->od_svname, PFID(fid), PTR_ERR(idc));
267 rc = osd_remote_fid(env, osd, fid);
268 if (unlikely(rc < 0))
272 /* the object is local, lookup in OI */
273 /* XXX: probably cheaper to lookup in LU first? */
274 rc = osd_oi_lookup(osd_oti_get(env), osd, fid,
276 if (unlikely(rc < 0)) {
277 CERROR("can't lookup: rc = %d\n", rc);
281 /* the object is remote */
289 * lookup mapping for given FID and fill it from the given object.
290 * the object is lolcal by definition.
292 static int osd_idc_find_and_init(const struct lu_env *env,
293 struct osd_device *osd,
294 struct osd_object *obj)
296 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
297 struct osd_idmap_cache *idc;
299 idc = osd_idc_find(env, osd, fid);
300 LASSERT(!IS_ERR(idc));
302 if (obj->oo_inode == NULL)
304 if (idc->oic_lid.oii_ino != obj->oo_inode->i_ino) {
305 LASSERT(idc->oic_lid.oii_ino == 0);
306 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
307 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
312 CDEBUG(D_INODE, "%s: FID "DFID" not in the id map cache\n",
313 osd->od_svname, PFID(fid));
315 /* new mapping is needed */
316 idc = osd_idc_add(env, osd, fid);
318 CERROR("%s: FID "DFID" add id map cache failed: %ld\n",
319 osd->od_svname, PFID(fid), PTR_ERR(idc));
323 if (obj->oo_inode != NULL) {
324 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
325 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
331 * OSD object methods.
335 * Concurrency: no concurrent access is possible that early in object
338 static struct lu_object *osd_object_alloc(const struct lu_env *env,
339 const struct lu_object_header *hdr,
342 struct osd_object *mo;
347 struct lu_object_header *h;
348 struct osd_device *o = osd_dev(d);
350 l = &mo->oo_dt.do_lu;
351 if (unlikely(o->od_in_init)) {
358 lu_object_header_init(h);
359 lu_object_init(l, h, d);
360 lu_object_add_top(h, l);
363 dt_object_init(&mo->oo_dt, NULL, d);
364 mo->oo_header = NULL;
367 mo->oo_dt.do_ops = &osd_obj_ops;
368 l->lo_ops = &osd_lu_obj_ops;
369 init_rwsem(&mo->oo_sem);
370 init_rwsem(&mo->oo_ext_idx_sem);
371 spin_lock_init(&mo->oo_guard);
372 INIT_LIST_HEAD(&mo->oo_xattr_list);
378 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
379 struct dentry *dentry, struct lustre_ost_attrs *loa)
383 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
384 (void *)loa, sizeof(*loa));
386 struct lustre_mdt_attrs *lma = &loa->loa_lma;
388 if (rc < sizeof(*lma))
392 lustre_loa_swab(loa, true);
393 /* Check LMA compatibility */
394 if (lma->lma_incompat & ~LMA_INCOMPAT_SUPP) {
395 CWARN("%s: unsupported incompat LMA feature(s) %#x "
396 "for fid = "DFID", ino = %lu\n",
398 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
399 PFID(&lma->lma_self_fid), inode->i_ino);
402 } else if (rc == 0) {
410 * retrieve object from backend ext fs.
412 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
413 struct osd_inode_id *id)
416 struct inode *inode = NULL;
419 * if we look for an inode withing a running
420 * transaction, then we risk to deadlock
421 * osd_dirent_check_repair() breaks this
423 /* LASSERT(current->journal_info == NULL); */
425 inode = osd_ldiskfs_iget(osd_sb(dev), id->oii_ino);
427 CDEBUG(D_INODE, "no inode: ino = %u, rc = %ld\n",
428 id->oii_ino, PTR_ERR(inode));
429 } else if (id->oii_gen != OSD_OII_NOGEN &&
430 inode->i_generation != id->oii_gen) {
431 CDEBUG(D_INODE, "unmatched inode: ino = %u, oii_gen = %u, "
432 "i_generation = %u\n",
433 id->oii_ino, id->oii_gen, inode->i_generation);
435 inode = ERR_PTR(-ESTALE);
436 } else if (inode->i_nlink == 0) {
438 * due to parallel readdir and unlink,
439 * we can have dead inode here.
441 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
443 inode = ERR_PTR(-ESTALE);
444 } else if (is_bad_inode(inode)) {
445 CWARN("%s: bad inode: ino = %u\n",
446 osd_dev2name(dev), id->oii_ino);
448 inode = ERR_PTR(-ENOENT);
449 } else if ((rc = osd_attach_jinode(inode))) {
453 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
454 if (id->oii_gen == OSD_OII_NOGEN)
455 osd_id_gen(id, inode->i_ino, inode->i_generation);
458 * Do not update file c/mtime in ldiskfs.
459 * NB: we don't have any lock to protect this because we don't
460 * have reference on osd_object now, but contention with
461 * another lookup + attr_set can't happen in the tiny window
462 * between if (...) and set S_NOCMTIME.
464 if (!(inode->i_flags & S_NOCMTIME))
465 inode->i_flags |= S_NOCMTIME;
470 int osd_ldiskfs_add_entry(struct osd_thread_info *info, struct osd_device *osd,
471 handle_t *handle, struct dentry *child,
472 struct inode *inode, struct htree_lock *hlock)
476 rc = __ldiskfs_add_entry(handle, child, inode, hlock);
477 if (rc == -ENOBUFS || rc == -ENOSPC) {
478 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
479 struct inode *parent = child->d_parent->d_inode;
480 struct lu_fid *fid = NULL;
481 char fidstr[FID_LEN + 1] = "unknown";
483 rc2 = osd_get_lma(info, parent, child->d_parent, loa);
485 fid = &loa->loa_lma.lma_self_fid;
486 } else if (rc2 == -ENODATA) {
487 if (unlikely(parent == inode->i_sb->s_root->d_inode)) {
488 fid = &info->oti_fid3;
489 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
490 } else if (!osd->od_is_ost && osd->od_index == 0) {
491 fid = &info->oti_fid3;
492 lu_igif_build(fid, parent->i_ino,
493 parent->i_generation);
498 snprintf(fidstr, sizeof(fidstr), DFID, PFID(fid));
500 /* below message is checked in sanity.sh test_129 */
502 CWARN("%s: directory (inode: %lu, FID: %s) has reached max size limit\n",
503 osd_name(osd), parent->i_ino, fidstr);
505 rc = 0; /* ignore such error now */
506 CWARN("%s: directory (inode: %lu, FID: %s) is approaching max size limit\n",
507 osd_name(osd), parent->i_ino, fidstr);
517 osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
518 struct osd_inode_id *id, struct lu_fid *fid)
520 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
524 inode = osd_iget(info, dev, id);
528 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
530 *fid = loa->loa_lma.lma_self_fid;
531 } else if (rc == -ENODATA) {
532 if (unlikely(inode == osd_sb(dev)->s_root->d_inode))
533 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
535 lu_igif_build(fid, inode->i_ino, inode->i_generation);
543 static struct inode *osd_iget_check(struct osd_thread_info *info,
544 struct osd_device *dev,
545 const struct lu_fid *fid,
546 struct osd_inode_id *id,
555 * The cached OI mapping is trustable. If we cannot locate the inode
556 * via the cached OI mapping, then return the failure to the caller
557 * directly without further OI checking.
561 inode = osd_ldiskfs_iget(osd_sb(dev), id->oii_ino);
564 if (!trusted && (rc == -ENOENT || rc == -ESTALE))
567 CDEBUG(D_INODE, "no inode for FID: "DFID", ino = %u, rc = %d\n",
568 PFID(fid), id->oii_ino, rc);
572 if (is_bad_inode(inode)) {
577 CDEBUG(D_INODE, "bad inode for FID: "DFID", ino = %u\n",
578 PFID(fid), id->oii_ino);
582 if (id->oii_gen != OSD_OII_NOGEN &&
583 inode->i_generation != id->oii_gen) {
588 CDEBUG(D_INODE, "unmatched inode for FID: "DFID", ino = %u, "
589 "oii_gen = %u, i_generation = %u\n", PFID(fid),
590 id->oii_ino, id->oii_gen, inode->i_generation);
594 if (inode->i_nlink == 0) {
599 CDEBUG(D_INODE, "stale inode for FID: "DFID", ino = %u\n",
600 PFID(fid), id->oii_ino);
604 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
608 __u32 saved_ino = id->oii_ino;
609 __u32 saved_gen = id->oii_gen;
612 LASSERTF(rc == -ESTALE || rc == -ENOENT, "rc = %d\n", rc);
614 rc = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
616 * XXX: There are four possible cases:
618 * Backup/restore caused the OI invalid.
620 * Someone unlinked the object but NOT removed
621 * the OI mapping, such as mount target device
622 * as ldiskfs, and modify something directly.
624 * Someone just removed the object between the
625 * former oi_lookup and the iget. It is normal.
626 * 4. Other failure cases.
628 * Generally, when the device is mounted, it will
629 * auto check whether the system is restored from
630 * file-level backup or not. We trust such detect
631 * to distinguish the 1st case from the 2nd case:
632 * if the OI files are consistent but may contain
633 * stale OI mappings because of case 2, if iget()
634 * returns -ENOENT or -ESTALE, then it should be
639 * If the OI mapping was in OI file before the
640 * osd_iget_check(), but now, it is disappear,
641 * then it must be removed by race. That is a
647 * It is the OI scrub updated the OI mapping by race.
648 * The new OI mapping must be valid.
650 if (saved_ino != id->oii_ino ||
651 (saved_gen != id->oii_gen && saved_gen != OSD_OII_NOGEN)) {
660 if (dev->od_scrub.os_scrub.os_file.sf_flags &
663 * It still can be the case 2, but we cannot
664 * distinguish it from the case 1. So return
665 * -EREMCHG to block current operation until
666 * OI scrub rebuilt the OI mappings.
675 if (inode->i_generation == id->oii_gen)
680 if (id->oii_gen == OSD_OII_NOGEN)
681 osd_id_gen(id, inode->i_ino, inode->i_generation);
684 * Do not update file c/mtime in ldiskfs.
685 * NB: we don't have any lock to protect this because we don't
686 * have reference on osd_object now, but contention with
687 * another lookup + attr_set can't happen in the tiny window
688 * between if (...) and set S_NOCMTIME.
690 if (!(inode->i_flags & S_NOCMTIME))
691 inode->i_flags |= S_NOCMTIME;
708 * \retval +v: new filter_fid does not contain self-fid
709 * \retval 0: filter_fid_18_23, contains self-fid
710 * \retval -v: other failure cases
712 int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
713 struct dentry *dentry, struct lu_fid *fid)
715 struct filter_fid *ff = &info->oti_ff;
716 struct ost_id *ostid = &info->oti_ostid;
719 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
720 if (rc == sizeof(struct filter_fid_18_23)) {
721 struct filter_fid_18_23 *ff_old = (void *)ff;
723 ostid_set_seq(ostid, le64_to_cpu(ff_old->ff_seq));
724 rc = ostid_set_id(ostid, le64_to_cpu(ff_old->ff_objid));
726 * XXX: use 0 as the index for compatibility, the caller will
727 * handle index related issues when necessary.
730 ostid_to_fid(fid, ostid, 0);
731 } else if (rc >= (int)sizeof(struct filter_fid_24_29)) {
733 } else if (rc >= 0) {
740 static int osd_lma_self_repair(struct osd_thread_info *info,
741 struct osd_device *osd, struct inode *inode,
742 const struct lu_fid *fid, __u32 compat)
747 LASSERT(current->journal_info == NULL);
749 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC,
750 osd_dto_credits_noquota[DTO_XATTR_SET]);
753 CWARN("%s: cannot start journal for lma_self_repair: rc = %d\n",
758 rc = osd_ea_fid_set(info, inode, fid, compat, 0);
760 CWARN("%s: cannot self repair the LMA: rc = %d\n",
762 ldiskfs_journal_stop(jh);
766 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
768 struct osd_thread_info *info = osd_oti_get(env);
769 struct osd_device *osd = osd_obj2dev(obj);
770 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
771 struct lustre_mdt_attrs *lma = &loa->loa_lma;
772 struct inode *inode = obj->oo_inode;
773 struct dentry *dentry = &info->oti_obj_dentry;
774 struct lu_fid *fid = NULL;
775 const struct lu_fid *rfid = lu_object_fid(&obj->oo_dt.do_lu);
780 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
781 (void *)loa, sizeof(*loa));
782 if (rc == -ENODATA && !fid_is_igif(rfid) && osd->od_check_ff) {
783 fid = &lma->lma_self_fid;
784 rc = osd_get_idif(info, inode, dentry, fid);
785 if (rc > 0 || (rc == -ENODATA && osd->od_index_in_idif)) {
787 * For the given OST-object, if it has neither LMA nor
788 * FID in XATTR_NAME_FID, then the given FID (which is
789 * contained in the @obj, from client RPC for locating
790 * the OST-object) is trusted. We use it to generate
793 osd_lma_self_repair(info, osd, inode, rfid,
804 lustre_lma_swab(lma);
805 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
806 (CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT) &&
807 S_ISREG(inode->i_mode)))) {
808 CWARN("%s: unsupported incompat LMA feature(s) %#x for "
809 "fid = "DFID", ino = %lu\n", osd_name(osd),
810 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
811 PFID(rfid), inode->i_ino);
814 fid = &lma->lma_self_fid;
815 if (lma->lma_compat & LMAC_STRIPE_INFO &&
817 obj->oo_pfid_in_lma = 1;
818 if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
820 lu_object_set_agent_entry(&obj->oo_dt.do_lu);
824 if (fid != NULL && unlikely(!lu_fid_eq(rfid, fid))) {
825 if (fid_is_idif(rfid) && fid_is_idif(fid)) {
826 struct ost_id *oi = &info->oti_ostid;
827 struct lu_fid *fid1 = &info->oti_fid3;
828 __u32 idx = fid_idif_ost_idx(rfid);
831 * For old IDIF, the OST index is not part of the IDIF,
832 * Means that different OSTs may have the same IDIFs.
833 * Under such case, we need to make some compatible
834 * check to make sure to trigger OI scrub properly.
836 if (idx != 0 && fid_idif_ost_idx(fid) == 0) {
837 /* Given @rfid is new, LMA is old. */
838 fid_to_ostid(fid, oi);
839 ostid_to_fid(fid1, oi, idx);
840 if (lu_fid_eq(fid1, rfid)) {
841 if (osd->od_index_in_idif)
842 osd_lma_self_repair(info, osd,
856 struct osd_check_lmv_buf {
857 /* please keep it as first member */
858 struct dir_context ctx;
859 struct osd_thread_info *oclb_info;
860 struct osd_device *oclb_dev;
861 struct osd_idmap_cache *oclb_oic;
867 * It is called internally by ->iterate*() to filter out the
868 * local slave object's FID of the striped directory.
870 * \retval 1 found the local slave's FID
871 * \retval 0 continue to check next item
872 * \retval -ve for failure
874 #ifdef HAVE_FILLDIR_USE_CTX
875 static int osd_stripe_dir_filldir(struct dir_context *buf,
877 static int osd_stripe_dir_filldir(void *buf,
879 const char *name, int namelen,
880 loff_t offset, __u64 ino, unsigned int d_type)
882 struct osd_check_lmv_buf *oclb = (struct osd_check_lmv_buf *)buf;
883 struct osd_thread_info *oti = oclb->oclb_info;
884 struct lu_fid *fid = &oti->oti_fid3;
885 struct osd_inode_id *id = &oti->oti_id3;
886 struct osd_device *dev = oclb->oclb_dev;
887 struct osd_idmap_cache *oic = oclb->oclb_oic;
896 sscanf(name + 1, SFID, RFID(fid));
897 if (!fid_is_sane(fid))
900 if (osd_remote_fid(oti->oti_env, dev, fid))
903 osd_id_gen(id, ino, OSD_OII_NOGEN);
904 inode = osd_iget(oti, dev, id);
906 return PTR_ERR(inode);
909 osd_add_oi_cache(oti, dev, id, fid);
913 osd_oii_insert(dev, oic, true);
914 oclb->oclb_found = true;
920 * When lookup item under striped directory, we need to locate the master
921 * MDT-object of the striped directory firstly, then the client will send
922 * lookup (getattr_by_name) RPC to the MDT with some slave MDT-object's FID
923 * and the item's name. If the system is restored from MDT file level backup,
924 * then before the OI scrub completely built the OI files, the OI mappings of
925 * the master MDT-object and slave MDT-object may be invalid. Usually, it is
926 * not a problem for the master MDT-object. Because when locate the master
927 * MDT-object, we will do name based lookup (for the striped directory itself)
928 * firstly, during such process we can setup the correct OI mapping for the
929 * master MDT-object. But it will be trouble for the slave MDT-object. Because
930 * the client will not trigger name based lookup on the MDT to locate the slave
931 * MDT-object before locating item under the striped directory, then when
932 * osd_fid_lookup(), it will find that the OI mapping for the slave MDT-object
933 * is invalid and does not know what the right OI mapping is, then the MDT has
934 * to return -EINPROGRESS to the client to notify that the OI scrub is rebuiding
935 * the OI file, related OI mapping is unknown yet, please try again later. And
936 * then client will re-try the RPC again and again until related OI mapping has
937 * been updated. That is quite inefficient.
939 * To resolve above trouble, we will handle it as the following two cases:
941 * 1) The slave MDT-object and the master MDT-object are on different MDTs.
942 * It is relative easy. Be as one of remote MDT-objects, the slave MDT-object
943 * is linked under /REMOTE_PARENT_DIR with the name of its FID string.
944 * We can locate the slave MDT-object via lookup the /REMOTE_PARENT_DIR
945 * directly. Please check osd_fid_lookup().
947 * 2) The slave MDT-object and the master MDT-object reside on the same MDT.
948 * Under such case, during lookup the master MDT-object, we will lookup the
949 * slave MDT-object via readdir against the master MDT-object, because the
950 * slave MDT-objects information are stored as sub-directories with the name
951 * "${FID}:${index}". Then when find the local slave MDT-object, its OI
952 * mapping will be recorded. Then subsequent osd_fid_lookup() will know
953 * the correct OI mapping for the slave MDT-object.
955 static int osd_check_lmv(struct osd_thread_info *oti, struct osd_device *dev,
956 struct inode *inode, struct osd_idmap_cache *oic)
958 struct lu_buf *buf = &oti->oti_big_buf;
959 struct dentry *dentry = &oti->oti_obj_dentry;
960 struct file *filp = &oti->oti_file;
961 const struct file_operations *fops;
962 struct lmv_mds_md_v1 *lmv1;
963 struct osd_check_lmv_buf oclb = {
964 .ctx.actor = osd_stripe_dir_filldir,
975 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, buf->lb_buf,
978 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMV, NULL, 0);
980 lu_buf_realloc(buf, rc);
981 if (buf->lb_buf == NULL)
982 GOTO(out, rc = -ENOMEM);
988 if (unlikely(rc == 0 || rc == -ENODATA))
994 if (unlikely(buf->lb_buf == NULL)) {
995 lu_buf_realloc(buf, rc);
996 if (buf->lb_buf == NULL)
997 GOTO(out, rc = -ENOMEM);
1003 if (le32_to_cpu(lmv1->lmv_magic) != LMV_MAGIC_V1)
1006 fops = inode->i_fop;
1007 dentry->d_inode = inode;
1008 dentry->d_sb = inode->i_sb;
1010 filp->f_path.dentry = dentry;
1011 filp->f_flags |= O_NOATIME;
1012 filp->f_mode = FMODE_64BITHASH | FMODE_NONOTIFY;
1013 filp->f_mapping = inode->i_mapping;
1015 filp->private_data = NULL;
1016 filp->f_cred = current_cred();
1017 filp->f_inode = inode;
1018 rc = osd_security_file_alloc(filp);
1023 oclb.oclb_items = 0;
1024 rc = iterate_dir(filp, &oclb.ctx);
1025 } while (rc >= 0 && oclb.oclb_items > 0 && !oclb.oclb_found &&
1026 filp->f_pos != LDISKFS_HTREE_EOF_64BIT);
1027 fops->release(inode, filp);
1031 CDEBUG(D_LFSCK, "%s: fail to check LMV EA, inode = %lu/%u,"
1032 DFID": rc = %d\n", osd_ino2name(inode),
1033 inode->i_ino, inode->i_generation,
1034 PFID(&oic->oic_fid), rc);
1041 static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
1042 const struct lu_fid *fid,
1043 const struct lu_object_conf *conf)
1045 struct osd_thread_info *info;
1046 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
1047 struct osd_device *dev;
1048 struct osd_idmap_cache *oic;
1049 struct osd_inode_id *id;
1050 struct inode *inode = NULL;
1051 struct lustre_scrub *scrub;
1052 struct scrub_file *sf;
1053 __u32 flags = SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT | SS_AUTO_FULL;
1058 bool remote = false;
1059 bool trusted = true;
1060 bool updated = false;
1061 bool checked = false;
1065 LINVRNT(osd_invariant(obj));
1066 LASSERT(obj->oo_inode == NULL);
1067 LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID"\n", PFID(fid));
1069 dev = osd_dev(ldev);
1070 scrub = &dev->od_scrub.os_scrub;
1071 sf = &scrub->os_file;
1072 info = osd_oti_get(env);
1074 oic = &info->oti_cache;
1076 if (OBD_FAIL_CHECK(OBD_FAIL_SRV_ENOENT))
1080 * For the object is created as locking anchor, or for the object to
1081 * be created on disk. No need to osd_oi_lookup() at here because FID
1082 * shouldn't never be re-used, if it's really a duplicate FID from
1083 * unexpected reason, we should be able to detect it later by calling
1084 * do_create->osd_oi_insert().
1086 if (conf && conf->loc_flags & LOC_F_NEW)
1087 GOTO(out, result = 0);
1089 /* Search order: 1. per-thread cache. */
1090 if (lu_fid_eq(fid, &oic->oic_fid) && likely(oic->oic_dev == dev)) {
1096 if (!list_empty(&scrub->os_inconsistent_items)) {
1097 /* Search order: 2. OI scrub pending list. */
1098 result = osd_oii_lookup(dev, fid, id);
1104 * The OI mapping in the OI file can be updated by the OI scrub
1105 * when we locate the inode via FID. So it may be not trustable.
1109 /* Search order: 3. OI files. */
1110 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1111 if (result == -ENOENT) {
1112 if (!(fid_is_norm(fid) || fid_is_igif(fid)) ||
1113 fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) ||
1114 !ldiskfs_test_bit(osd_oi_fid2idx(dev, fid),
1116 GOTO(out, result = 0);
1121 /* -ESTALE is returned if inode of OST object doesn't exist */
1122 if (result == -ESTALE &&
1123 fid_is_on_ost(info, dev, fid, OI_CHECK_FLD)) {
1124 GOTO(out, result = 0);
1131 obj->oo_inode = NULL;
1132 /* for later passes through checks, not true on first pass */
1133 if (!IS_ERR_OR_NULL(inode))
1136 inode = osd_iget_check(info, dev, fid, id, trusted);
1137 if (!IS_ERR(inode)) {
1138 obj->oo_inode = inode;
1146 result = PTR_ERR(inode);
1147 if (result == -ENOENT || result == -ESTALE)
1148 GOTO(out, result = 0);
1150 if (result != -EREMCHG)
1155 * We still have chance to get the valid inode: for the
1156 * object which is referenced by remote name entry, the
1157 * object on the local MDT will be linked under the dir
1158 * of "/REMOTE_PARENT_DIR" with its FID string as name.
1160 * We do not know whether the object for the given FID
1161 * is referenced by some remote name entry or not, and
1162 * especially for DNE II, a multiple-linked object may
1163 * have many name entries reside on many MDTs.
1165 * To simplify the operation, OSD will not distinguish
1166 * more, just lookup "/REMOTE_PARENT_DIR". Usually, it
1167 * only happened for the RPC from other MDT during the
1168 * OI scrub, or for the client side RPC with FID only,
1169 * such as FID to path, or from old connected client.
1172 rc1 = osd_lookup_in_remote_parent(info, dev, fid, id);
1176 flags |= SS_AUTO_PARTIAL;
1177 flags &= ~SS_AUTO_FULL;
1182 if (scrub->os_running) {
1183 if (scrub->os_partial_scan && !scrub->os_in_join)
1186 osd_add_oi_cache(info, dev, id, fid);
1187 if (IS_ERR_OR_NULL(inode) || result) {
1188 osd_oii_insert(dev, oic, result == -ENOENT);
1189 GOTO(out, result = -EINPROGRESS);
1193 LASSERT(obj->oo_inode == inode);
1195 osd_oii_insert(dev, oic, true);
1199 if (dev->od_auto_scrub_interval == AS_NEVER) {
1201 GOTO(out, result = -EREMCHG);
1204 LASSERT(obj->oo_inode == inode);
1206 osd_add_oi_cache(info, dev, id, fid);
1211 rc1 = osd_scrub_start(env, dev, flags);
1212 LCONSOLE_WARN("%s: trigger OI scrub by RPC for the " DFID" with flags "
1213 "0x%x, rc = %d\n", osd_name(dev), PFID(fid), flags, rc1);
1214 if (rc1 && rc1 != -EALREADY)
1215 GOTO(out, result = -EREMCHG);
1217 osd_add_oi_cache(info, dev, id, fid);
1218 if (IS_ERR_OR_NULL(inode) || result) {
1219 osd_oii_insert(dev, oic, result == -ENOENT);
1220 GOTO(out, result = -EINPROGRESS);
1224 LASSERT(obj->oo_inode == inode);
1226 osd_oii_insert(dev, oic, true);
1231 if (unlikely(obj->oo_header))
1234 result = osd_check_lma(env, obj);
1238 LASSERTF(id->oii_ino == inode->i_ino &&
1239 id->oii_gen == inode->i_generation,
1240 "locate wrong inode for FID: "DFID", %u/%u => %ld/%u\n",
1241 PFID(fid), id->oii_ino, id->oii_gen,
1242 inode->i_ino, inode->i_generation);
1244 saved_ino = inode->i_ino;
1245 saved_gen = inode->i_generation;
1247 if (unlikely(result == -ENODATA)) {
1249 * If the OI scrub updated the OI mapping by race, it
1250 * must be valid. Trust the inode that has no LMA EA.
1255 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1258 * The OI mapping is still there, the inode is still
1259 * valid. It is just becaues the inode has no LMA EA.
1261 if (saved_ino == id->oii_ino &&
1262 saved_gen == id->oii_gen)
1266 * It is the OI scrub updated the OI mapping by race.
1267 * The new OI mapping must be valid.
1275 * "result == -ENOENT" means that the OI mappinghas been
1276 * removed by race, so the inode belongs to other object.
1278 * Others error can be returned directly.
1280 if (result == -ENOENT) {
1283 obj->oo_inode = NULL;
1288 if (result != -EREMCHG)
1294 * if two OST objects map to the same inode, and inode mode is
1295 * (S_IFREG | S_ISUID | S_ISGID | S_ISVTX | 0666), which means it's
1296 * reserved by precreate, and not written yet, in this case, don't
1297 * set inode for the object whose FID mismatch, so that it can create
1298 * inode and not block precreate.
1300 if (fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) &&
1301 inode->i_mode == (S_IFREG | S_ISUID | S_ISGID | S_ISVTX | 0666)) {
1302 obj->oo_inode = NULL;
1303 GOTO(out, result = 0);
1306 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
1308 * "result == -ENOENT" means the cached OI mapping has been removed
1309 * from the OI file by race, above inode belongs to other object.
1311 if (result == -ENOENT) {
1314 obj->oo_inode = NULL;
1315 GOTO(out, result = 0);
1321 if (saved_ino == id->oii_ino && saved_gen == id->oii_gen) {
1327 * It is the OI scrub updated the OI mapping by race.
1328 * The new OI mapping must be valid.
1336 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
1337 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
1339 result = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
1341 if (lma->lma_compat & LMAC_STRIPE_INFO &&
1343 obj->oo_pfid_in_lma = 1;
1344 if (unlikely(lma->lma_incompat & LMAI_REMOTE_PARENT) &&
1346 lu_object_set_agent_entry(&obj->oo_dt.do_lu);
1347 } else if (result != -ENODATA) {
1352 obj->oo_compat_dot_created = 1;
1353 obj->oo_compat_dotdot_created = 1;
1355 if (S_ISDIR(inode->i_mode) &&
1356 (flags & SS_AUTO_PARTIAL || sf->sf_status == SS_SCANNING))
1357 osd_check_lmv(info, dev, inode, oic);
1359 result = osd_attach_jinode(inode);
1364 GOTO(out, result = 0);
1366 LASSERT(!obj->oo_hl_head);
1367 obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
1369 GOTO(out, result = (!obj->oo_hl_head ? -ENOMEM : 0));
1372 if (result || !obj->oo_inode) {
1373 if (!IS_ERR_OR_NULL(inode))
1376 obj->oo_inode = NULL;
1378 fid_zero(&oic->oic_fid);
1381 LINVRNT(osd_invariant(obj));
1386 * Concurrency: shouldn't matter.
1388 static void osd_object_init0(struct osd_object *obj)
1390 LASSERT(obj->oo_inode != NULL);
1391 obj->oo_dt.do_body_ops = &osd_body_ops;
1392 obj->oo_dt.do_lu.lo_header->loh_attr |=
1393 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
1397 * Concurrency: no concurrent access is possible that early in object
1400 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
1401 const struct lu_object_conf *conf)
1403 struct osd_object *obj = osd_obj(l);
1406 LINVRNT(osd_invariant(obj));
1408 if (OBD_FAIL_PRECHECK(OBD_FAIL_MDS_LLOG_UMOUNT_RACE) &&
1409 cfs_fail_val == 2) {
1410 struct osd_thread_info *info = osd_oti_get(env);
1411 struct osd_idmap_cache *oic = &info->oti_cache;
1412 /* invalidate thread cache */
1413 memset(&oic->oic_fid, 0, sizeof(oic->oic_fid));
1415 if (fid_is_otable_it(&l->lo_header->loh_fid)) {
1416 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
1417 l->lo_header->loh_attr |= LOHA_EXISTS;
1421 result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
1422 obj->oo_dt.do_body_ops = &osd_body_ops_new;
1423 if (result == 0 && obj->oo_inode != NULL) {
1424 struct osd_thread_info *oti = osd_oti_get(env);
1425 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
1427 osd_object_init0(obj);
1428 if (unlikely(obj->oo_header))
1431 result = osd_get_lma(oti, obj->oo_inode,
1432 &oti->oti_obj_dentry, loa);
1435 * Convert LMAI flags to lustre LMA flags
1436 * and cache it to oo_lma_flags
1439 lma_to_lustre_flags(loa->loa_lma.lma_incompat);
1440 } else if (result == -ENODATA) {
1444 obj->oo_dirent_count = LU_DIRENT_COUNT_UNSET;
1446 LINVRNT(osd_invariant(obj));
1451 * The first part of oxe_buf is xattr name, and is '\0' terminated.
1452 * The left part is for value, binary mode.
1454 struct osd_xattr_entry {
1455 struct list_head oxe_list;
1459 struct rcu_head oxe_rcu;
1463 static int osd_oxc_get(struct osd_object *obj, const char *name,
1466 struct osd_xattr_entry *tmp;
1467 struct osd_xattr_entry *oxe = NULL;
1468 size_t namelen = strlen(name);
1472 list_for_each_entry_rcu(tmp, &obj->oo_xattr_list, oxe_list) {
1473 if (namelen == tmp->oxe_namelen &&
1474 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1481 GOTO(out, rc = -ENOENT);
1483 if (!oxe->oxe_exist)
1484 GOTO(out, rc = -ENODATA);
1487 rc = oxe->oxe_len - sizeof(*oxe) - oxe->oxe_namelen - 1;
1490 if (buf->lb_buf == NULL)
1493 if (buf->lb_len < rc)
1494 GOTO(out, rc = -ERANGE);
1496 memcpy(buf->lb_buf, &oxe->oxe_buf[namelen + 1], rc);
1503 static void osd_oxc_free(struct rcu_head *head)
1505 struct osd_xattr_entry *oxe;
1507 oxe = container_of(head, struct osd_xattr_entry, oxe_rcu);
1508 OBD_FREE(oxe, oxe->oxe_len);
1511 static void osd_oxc_add(struct osd_object *obj, const char *name,
1512 const char *buf, int buflen)
1514 struct osd_xattr_entry *oxe;
1515 struct osd_xattr_entry *old = NULL;
1516 struct osd_xattr_entry *tmp;
1517 size_t namelen = strlen(name);
1518 size_t len = sizeof(*oxe) + namelen + 1 + buflen;
1520 OBD_ALLOC(oxe, len);
1524 INIT_LIST_HEAD(&oxe->oxe_list);
1526 oxe->oxe_namelen = namelen;
1527 memcpy(oxe->oxe_buf, name, namelen);
1529 LASSERT(buf != NULL);
1530 memcpy(oxe->oxe_buf + namelen + 1, buf, buflen);
1531 oxe->oxe_exist = true;
1533 oxe->oxe_exist = false;
1536 /* this should be rarely called, just remove old and add new */
1537 spin_lock(&obj->oo_guard);
1538 list_for_each_entry(tmp, &obj->oo_xattr_list, oxe_list) {
1539 if (namelen == tmp->oxe_namelen &&
1540 strncmp(name, tmp->oxe_buf, namelen) == 0) {
1546 list_replace_rcu(&old->oxe_list, &oxe->oxe_list);
1547 call_rcu(&old->oxe_rcu, osd_oxc_free);
1549 list_add_tail_rcu(&oxe->oxe_list, &obj->oo_xattr_list);
1551 spin_unlock(&obj->oo_guard);
1554 static void osd_oxc_del(struct osd_object *obj, const char *name)
1556 struct osd_xattr_entry *oxe;
1557 size_t namelen = strlen(name);
1559 spin_lock(&obj->oo_guard);
1560 list_for_each_entry(oxe, &obj->oo_xattr_list, oxe_list) {
1561 if (namelen == oxe->oxe_namelen &&
1562 strncmp(name, oxe->oxe_buf, namelen) == 0) {
1563 list_del_rcu(&oxe->oxe_list);
1564 call_rcu(&oxe->oxe_rcu, osd_oxc_free);
1568 spin_unlock(&obj->oo_guard);
1571 static void osd_oxc_fini(struct osd_object *obj)
1573 struct osd_xattr_entry *oxe, *next;
1575 list_for_each_entry_safe(oxe, next, &obj->oo_xattr_list, oxe_list) {
1576 list_del(&oxe->oxe_list);
1577 OBD_FREE(oxe, oxe->oxe_len);
1582 * Concurrency: no concurrent access is possible that late in object
1585 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
1587 struct osd_object *obj = osd_obj(l);
1588 struct lu_object_header *h = obj->oo_header;
1590 LINVRNT(osd_invariant(obj));
1593 dt_object_fini(&obj->oo_dt);
1594 if (obj->oo_hl_head != NULL)
1595 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
1596 /* obj doesn't contain an lu_object_header, so we don't need call_rcu */
1599 lu_object_header_fini(h);
1600 OBD_FREE_PRE(h, sizeof(*h), "kfreed");
1601 kfree_rcu(h, loh_rcu);
1606 * Concurrency: no concurrent access is possible that late in object
1609 static void osd_index_fini(struct osd_object *o)
1611 struct iam_container *bag;
1613 if (o->oo_dir != NULL) {
1614 bag = &o->oo_dir->od_container;
1615 if (o->oo_inode != NULL) {
1616 if (bag->ic_object == o->oo_inode)
1617 iam_container_fini(bag);
1619 OBD_FREE_PTR(o->oo_dir);
1625 * Concurrency: no concurrent access is possible that late in object
1626 * life-cycle (for all existing callers, that is. New callers have to provide
1627 * their own locking.)
1629 static int osd_inode_unlinked(const struct inode *inode)
1631 return inode->i_nlink == 0;
1635 OSD_TXN_OI_DELETE_CREDITS = 20,
1636 OSD_TXN_INODE_DELETE_CREDITS = 20
1643 #if OSD_THANDLE_STATS
1645 * Set time when the handle is allocated
1647 static void osd_th_alloced(struct osd_thandle *oth)
1649 oth->oth_alloced = ktime_get();
1653 * Set time when the handle started
1655 static void osd_th_started(struct osd_thandle *oth)
1657 oth->oth_started = ktime_get();
1661 * Check whether the we deal with this handle for too long.
1663 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
1664 ktime_t alloced, ktime_t started,
1667 ktime_t now = ktime_get();
1669 LASSERT(dev != NULL);
1671 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
1672 ktime_us_delta(started, alloced));
1673 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
1674 ktime_us_delta(closed, started));
1675 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
1676 ktime_us_delta(now, closed));
1678 if (ktime_before(ktime_add_ns(alloced, 30 * NSEC_PER_SEC), now)) {
1679 CWARN("transaction handle %p was open for too long: now %lld, alloced %lld, started %lld, closed %lld\n",
1680 oth, now, alloced, started, closed);
1681 libcfs_debug_dumpstack(NULL);
1685 #define OSD_CHECK_SLOW_TH(oth, dev, expr) \
1687 ktime_t __closed = ktime_get(); \
1688 ktime_t __alloced = oth->oth_alloced; \
1689 ktime_t __started = oth->oth_started; \
1692 __osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
1695 #else /* OSD_THANDLE_STATS */
1697 #define osd_th_alloced(h) do {} while(0)
1698 #define osd_th_started(h) do {} while(0)
1699 #define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
1701 #endif /* OSD_THANDLE_STATS */
1704 * Concurrency: doesn't access mutable data.
1706 static int osd_param_is_not_sane(const struct osd_device *dev,
1707 const struct thandle *th)
1709 struct osd_thandle *oh = container_of(th, typeof(*oh), ot_super);
1711 return oh->ot_credits > osd_transaction_size(dev);
1715 * Concurrency: shouldn't matter.
1717 static void osd_trans_commit_cb(struct super_block *sb,
1718 struct ldiskfs_journal_cb_entry *jcb, int error)
1720 struct osd_thandle *oh = container_of(jcb, struct osd_thandle, ot_jcb);
1721 struct thandle *th = &oh->ot_super;
1722 struct lu_device *lud = &th->th_dev->dd_lu_dev;
1723 struct dt_txn_commit_cb *dcb, *tmp;
1725 LASSERT(oh->ot_handle == NULL);
1728 CERROR("transaction @0x%p commit error: %d\n", th, error);
1730 OBD_FAIL_TIMEOUT(OBD_FAIL_OST_DELAY_TRANS, 40);
1731 /* call per-transaction callbacks if any */
1732 list_for_each_entry_safe(dcb, tmp, &oh->ot_commit_dcb_list,
1734 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1735 "commit callback entry: magic=%x name='%s'\n",
1736 dcb->dcb_magic, dcb->dcb_name);
1737 list_del_init(&dcb->dcb_linkage);
1738 dcb->dcb_func(NULL, th, dcb, error);
1741 lu_ref_del_at(&lud->ld_reference, &oh->ot_dev_link, "osd-tx", th);
1748 static struct thandle *osd_trans_create(const struct lu_env *env,
1749 struct dt_device *d)
1751 struct osd_thread_info *oti = osd_oti_get(env);
1752 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1753 struct osd_thandle *oh;
1759 CERROR("%s: someone try to start transaction under "
1760 "readonly mode, should be disabled.\n",
1761 osd_name(osd_dt_dev(d)));
1763 RETURN(ERR_PTR(-EROFS));
1766 /* on pending IO in this thread should left from prev. request */
1767 LASSERT(atomic_read(&iobuf->dr_numreqs) == 0);
1769 sb_start_write(osd_sb(osd_dt_dev(d)));
1771 OBD_ALLOC_GFP(oh, sizeof(*oh), GFP_NOFS);
1773 sb_end_write(osd_sb(osd_dt_dev(d)));
1774 RETURN(ERR_PTR(-ENOMEM));
1777 oh->ot_quota_trans = &oti->oti_quota_trans;
1778 memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
1783 INIT_LIST_HEAD(&oh->ot_commit_dcb_list);
1784 INIT_LIST_HEAD(&oh->ot_stop_dcb_list);
1785 INIT_LIST_HEAD(&oh->ot_trunc_locks);
1788 memset(oti->oti_declare_ops, 0,
1789 sizeof(oti->oti_declare_ops));
1790 memset(oti->oti_declare_ops_cred, 0,
1791 sizeof(oti->oti_declare_ops_cred));
1792 memset(oti->oti_declare_ops_used, 0,
1793 sizeof(oti->oti_declare_ops_used));
1795 oti->oti_ins_cache_depth++;
1800 void osd_trans_dump_creds(const struct lu_env *env, struct thandle *th)
1802 struct osd_thread_info *oti = osd_oti_get(env);
1803 struct osd_thandle *oh;
1805 oh = container_of(th, struct osd_thandle, ot_super);
1806 LASSERT(oh != NULL);
1808 CWARN(" create: %u/%u/%u, destroy: %u/%u/%u\n",
1809 oti->oti_declare_ops[OSD_OT_CREATE],
1810 oti->oti_declare_ops_cred[OSD_OT_CREATE],
1811 oti->oti_declare_ops_used[OSD_OT_CREATE],
1812 oti->oti_declare_ops[OSD_OT_DESTROY],
1813 oti->oti_declare_ops_cred[OSD_OT_DESTROY],
1814 oti->oti_declare_ops_used[OSD_OT_DESTROY]);
1815 CWARN(" attr_set: %u/%u/%u, xattr_set: %u/%u/%u\n",
1816 oti->oti_declare_ops[OSD_OT_ATTR_SET],
1817 oti->oti_declare_ops_cred[OSD_OT_ATTR_SET],
1818 oti->oti_declare_ops_used[OSD_OT_ATTR_SET],
1819 oti->oti_declare_ops[OSD_OT_XATTR_SET],
1820 oti->oti_declare_ops_cred[OSD_OT_XATTR_SET],
1821 oti->oti_declare_ops_used[OSD_OT_XATTR_SET]);
1822 CWARN(" write: %u/%u/%u, punch: %u/%u/%u, quota %u/%u/%u\n",
1823 oti->oti_declare_ops[OSD_OT_WRITE],
1824 oti->oti_declare_ops_cred[OSD_OT_WRITE],
1825 oti->oti_declare_ops_used[OSD_OT_WRITE],
1826 oti->oti_declare_ops[OSD_OT_PUNCH],
1827 oti->oti_declare_ops_cred[OSD_OT_PUNCH],
1828 oti->oti_declare_ops_used[OSD_OT_PUNCH],
1829 oti->oti_declare_ops[OSD_OT_QUOTA],
1830 oti->oti_declare_ops_cred[OSD_OT_QUOTA],
1831 oti->oti_declare_ops_used[OSD_OT_QUOTA]);
1832 CWARN(" insert: %u/%u/%u, delete: %u/%u/%u\n",
1833 oti->oti_declare_ops[OSD_OT_INSERT],
1834 oti->oti_declare_ops_cred[OSD_OT_INSERT],
1835 oti->oti_declare_ops_used[OSD_OT_INSERT],
1836 oti->oti_declare_ops[OSD_OT_DELETE],
1837 oti->oti_declare_ops_cred[OSD_OT_DELETE],
1838 oti->oti_declare_ops_used[OSD_OT_DELETE]);
1839 CWARN(" ref_add: %u/%u/%u, ref_del: %u/%u/%u\n",
1840 oti->oti_declare_ops[OSD_OT_REF_ADD],
1841 oti->oti_declare_ops_cred[OSD_OT_REF_ADD],
1842 oti->oti_declare_ops_used[OSD_OT_REF_ADD],
1843 oti->oti_declare_ops[OSD_OT_REF_DEL],
1844 oti->oti_declare_ops_cred[OSD_OT_REF_DEL],
1845 oti->oti_declare_ops_used[OSD_OT_REF_DEL]);
1849 * Concurrency: shouldn't matter.
1851 static int osd_trans_start(const struct lu_env *env, struct dt_device *d,
1854 struct osd_thread_info *oti = osd_oti_get(env);
1855 struct osd_device *dev = osd_dt_dev(d);
1857 struct osd_thandle *oh;
1862 LASSERT(current->journal_info == NULL);
1864 oh = container_of(th, struct osd_thandle, ot_super);
1865 LASSERT(oh != NULL);
1866 LASSERT(oh->ot_handle == NULL);
1868 rc = dt_txn_hook_start(env, d, th);
1872 if (unlikely(osd_param_is_not_sane(dev, th))) {
1873 static unsigned long last_printed;
1874 static int last_credits;
1877 * don't make noise on a tiny testing systems
1878 * actual credits misuse will be caught anyway
1880 if (last_credits != oh->ot_credits &&
1881 time_after(jiffies, last_printed +
1882 cfs_time_seconds(60)) &&
1883 osd_transaction_size(dev) > 512) {
1884 CWARN("%s: credits %u > trans_max %u\n", osd_name(dev),
1885 oh->ot_credits, osd_transaction_size(dev));
1886 osd_trans_dump_creds(env, th);
1887 libcfs_debug_dumpstack(NULL);
1888 last_credits = oh->ot_credits;
1889 last_printed = jiffies;
1892 * XXX Limit the credits to 'max_transaction_buffers', and
1893 * let the underlying filesystem to catch the error if
1894 * we really need so many credits.
1896 * This should be removed when we can calculate the
1897 * credits precisely.
1899 oh->ot_credits = osd_transaction_size(dev);
1900 } else if (ldiskfs_track_declares_assert != 0) {
1902 * reserve few credits to prevent an assertion in JBD
1903 * our debugging mechanism will be able to detected
1904 * overuse. this can help to debug single-update
1907 oh->ot_credits += 10;
1908 if (unlikely(osd_param_is_not_sane(dev, th)))
1909 oh->ot_credits = osd_transaction_size(dev);
1912 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_TXN_START))
1913 GOTO(out, rc = -EIO);
1916 * XXX temporary stuff. Some abstraction layer should
1919 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, oh->ot_credits);
1923 LASSERT(oti->oti_txns == 0);
1925 lu_device_get(&d->dd_lu_dev);
1926 lu_ref_add_at(&d->dd_lu_dev.ld_reference, &oh->ot_dev_link,
1937 static int osd_seq_exists(const struct lu_env *env,
1938 struct osd_device *osd, u64 seq)
1940 struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
1941 struct seq_server_site *ss = osd_seq_site(osd);
1946 LASSERT(ss != NULL);
1947 LASSERT(ss->ss_server_fld != NULL);
1949 rc = osd_fld_lookup(env, osd, seq, range);
1952 CERROR("%s: can't lookup FLD sequence %#llx: rc = %d\n",
1953 osd_name(osd), seq, rc);
1957 RETURN(ss->ss_node_id == range->lsr_index);
1960 static void osd_trans_stop_cb(struct osd_thandle *oth, int result)
1962 struct dt_txn_commit_cb *dcb;
1963 struct dt_txn_commit_cb *tmp;
1965 /* call per-transaction stop callbacks if any */
1966 list_for_each_entry_safe(dcb, tmp, &oth->ot_stop_dcb_list,
1968 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1969 "commit callback entry: magic=%x name='%s'\n",
1970 dcb->dcb_magic, dcb->dcb_name);
1971 list_del_init(&dcb->dcb_linkage);
1972 dcb->dcb_func(NULL, &oth->ot_super, dcb, result);
1977 * Concurrency: shouldn't matter.
1979 static int osd_trans_stop(const struct lu_env *env, struct dt_device *dt,
1982 struct osd_thread_info *oti = osd_oti_get(env);
1983 struct osd_thandle *oh;
1984 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1985 struct osd_device *osd = osd_dt_dev(th->th_dev);
1986 struct qsd_instance *qsd = osd_def_qsd(osd);
1987 struct lquota_trans *qtrans;
1988 LIST_HEAD(truncates);
1989 int rc = 0, remove_agents = 0;
1993 oh = container_of(th, struct osd_thandle, ot_super);
1995 remove_agents = oh->ot_remove_agents;
1997 qtrans = oh->ot_quota_trans;
1998 oh->ot_quota_trans = NULL;
2000 /* move locks to local list, stop tx, execute truncates */
2001 list_splice(&oh->ot_trunc_locks, &truncates);
2003 if (oh->ot_handle != NULL) {
2006 handle_t *hdl = oh->ot_handle;
2009 * add commit callback
2010 * notice we don't do this in osd_trans_start()
2011 * as underlying transaction can change during truncate
2013 ldiskfs_journal_callback_add(hdl, osd_trans_commit_cb,
2016 LASSERT(oti->oti_txns == 1);
2019 rc = dt_txn_hook_stop(env, th);
2021 CERROR("%s: failed in transaction hook: rc = %d\n",
2024 osd_trans_stop_cb(oh, rc);
2025 /* hook functions might modify th_sync */
2026 hdl->h_sync = th->th_sync;
2028 oh->ot_handle = NULL;
2029 OSD_CHECK_SLOW_TH(oh, osd, rc2 = ldiskfs_journal_stop(hdl));
2031 CERROR("%s: failed to stop transaction: rc = %d\n",
2032 osd_name(osd), rc2);
2036 osd_process_truncates(&truncates);
2038 osd_trans_stop_cb(oh, th->th_result);
2042 osd_trunc_unlock_all(env, &truncates);
2044 /* inform the quota slave device that the transaction is stopping */
2045 qsd_op_end(env, qsd, qtrans);
2048 * as we want IO to journal and data IO be concurrent, we don't block
2049 * awaiting data IO completion in osd_do_bio(), instead we wait here
2050 * once transaction is submitted to the journal. all reqular requests
2051 * don't do direct IO (except read/write), thus this wait_event becomes
2054 * IMPORTANT: we have to wait till any IO submited by the thread is
2055 * completed otherwise iobuf may be corrupted by different request
2057 wait_event(iobuf->dr_wait,
2058 atomic_read(&iobuf->dr_numreqs) == 0);
2059 osd_fini_iobuf(osd, iobuf);
2061 rc = iobuf->dr_error;
2063 if (unlikely(remove_agents != 0))
2064 osd_process_scheduled_agent_removals(env, osd);
2066 oti->oti_ins_cache_depth--;
2067 /* reset OI cache for safety */
2068 if (oti->oti_ins_cache_depth == 0)
2069 oti->oti_ins_cache_used = 0;
2071 sb_end_write(osd_sb(osd));
2076 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
2078 struct osd_thandle *oh = container_of(th, struct osd_thandle,
2081 LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
2082 LASSERT(&dcb->dcb_func != NULL);
2083 if (dcb->dcb_flags & DCB_TRANS_STOP)
2084 list_add(&dcb->dcb_linkage, &oh->ot_stop_dcb_list);
2086 list_add(&dcb->dcb_linkage, &oh->ot_commit_dcb_list);
2092 * Called just before object is freed. Releases all resources except for
2093 * object itself (that is released by osd_object_free()).
2095 * Concurrency: no concurrent access is possible that late in object
2098 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
2100 struct osd_object *obj = osd_obj(l);
2101 struct qsd_instance *qsd = osd_def_qsd(osd_obj2dev(obj));
2102 struct inode *inode = obj->oo_inode;
2107 LINVRNT(osd_invariant(obj));
2110 * If object is unlinked remove fid->ino mapping from object index.
2113 osd_index_fini(obj);
2118 if (osd_has_index(obj) && obj->oo_dt.do_index_ops == &osd_index_iam_ops)
2119 ldiskfs_set_inode_flag(inode, LDISKFS_INODE_JOURNAL_DATA);
2121 uid = i_uid_read(inode);
2122 gid = i_gid_read(inode);
2123 projid = i_projid_read(inode);
2125 obj->oo_inode = NULL;
2128 /* do not rebalance quota if the caller needs to release memory
2129 * otherwise qsd_refresh_usage() may went into a new ldiskfs
2130 * transaction and risk to deadlock - LU-12178 */
2131 if (current->flags & (PF_MEMALLOC | PF_KSWAPD))
2134 if (!obj->oo_header && qsd) {
2135 struct osd_thread_info *info = osd_oti_get(env);
2136 struct lquota_id_info *qi = &info->oti_qi;
2138 /* Release granted quota to master if necessary */
2139 qi->lqi_id.qid_uid = uid;
2140 qsd_op_adjust(env, qsd, &qi->lqi_id, USRQUOTA);
2142 qi->lqi_id.qid_uid = gid;
2143 qsd_op_adjust(env, qsd, &qi->lqi_id, GRPQUOTA);
2145 qi->lqi_id.qid_uid = projid;
2146 qsd_op_adjust(env, qsd, &qi->lqi_id, PRJQUOTA);
2151 * Concurrency: ->loo_object_release() is called under site spin-lock.
2153 static void osd_object_release(const struct lu_env *env,
2154 struct lu_object *l)
2156 struct osd_object *o = osd_obj(l);
2159 * nobody should be releasing a non-destroyed object with nlink=0
2160 * the API allows this, but ldiskfs doesn't like and then report
2161 * this inode as deleted
2163 LASSERT(!(o->oo_destroyed == 0 && o->oo_inode &&
2164 o->oo_inode->i_nlink == 0));
2168 * Concurrency: shouldn't matter.
2170 static int osd_object_print(const struct lu_env *env, void *cookie,
2171 lu_printer_t p, const struct lu_object *l)
2173 struct osd_object *o = osd_obj(l);
2174 struct iam_descr *d;
2176 if (o->oo_dir != NULL)
2177 d = o->oo_dir->od_container.ic_descr;
2180 return (*p)(env, cookie,
2181 LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
2183 o->oo_inode ? o->oo_inode->i_ino : 0UL,
2184 o->oo_inode ? o->oo_inode->i_generation : 0,
2185 d ? d->id_ops->id_name : "plain");
2189 * Concurrency: shouldn't matter.
2191 int osd_statfs(const struct lu_env *env, struct dt_device *d,
2192 struct obd_statfs *sfs, struct obd_statfs_info *info)
2194 struct osd_device *osd = osd_dt_dev(d);
2195 struct super_block *sb = osd_sb(osd);
2196 struct kstatfs *ksfs;
2200 if (unlikely(osd->od_mnt == NULL))
2201 return -EINPROGRESS;
2203 /* osd_lproc.c call this without env, allocate ksfs for that case */
2204 if (unlikely(env == NULL)) {
2205 OBD_ALLOC_PTR(ksfs);
2209 ksfs = &osd_oti_get(env)->oti_ksfs;
2212 result = sb->s_op->statfs(sb->s_root, ksfs);
2216 statfs_pack(sfs, ksfs);
2217 if (unlikely(sb->s_flags & SB_RDONLY))
2218 sfs->os_state |= OS_STATFS_READONLY;
2220 sfs->os_state |= osd->od_nonrotational ? OS_STATFS_NONROT : 0;
2222 if (ldiskfs_has_feature_extents(sb))
2223 sfs->os_maxbytes = sb->s_maxbytes;
2225 sfs->os_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2228 * Reserve some space so to avoid fragmenting the filesystem too much.
2229 * Fragmentation not only impacts performance, but can also increase
2230 * metadata overhead significantly, causing grant calculation to be
2233 * Reserve 0.78% of total space, at least 8MB for small filesystems.
2235 BUILD_BUG_ON(OSD_STATFS_RESERVED <= LDISKFS_MAX_BLOCK_SIZE);
2236 reserved = OSD_STATFS_RESERVED >> sb->s_blocksize_bits;
2237 if (likely(sfs->os_blocks >= reserved << OSD_STATFS_RESERVED_SHIFT))
2238 reserved = sfs->os_blocks >> OSD_STATFS_RESERVED_SHIFT;
2240 sfs->os_blocks -= reserved;
2241 sfs->os_bfree -= min(reserved, sfs->os_bfree);
2242 sfs->os_bavail -= min(reserved, sfs->os_bavail);
2245 if (unlikely(env == NULL))
2251 * Estimate space needed for file creations. We assume the largest filename
2252 * which is 2^64 - 1, hence a filename of 20 chars.
2253 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
2255 #ifdef __LDISKFS_DIR_REC_LEN
2256 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
2258 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
2262 * Concurrency: doesn't access mutable data.
2264 static void osd_conf_get(const struct lu_env *env,
2265 const struct dt_device *dev,
2266 struct dt_device_param *param)
2268 struct osd_device *d = osd_dt_dev(dev);
2269 struct super_block *sb = osd_sb(d);
2270 struct blk_integrity *bi = bdev_get_integrity(sb->s_bdev);
2275 * XXX should be taken from not-yet-existing fs abstraction layer.
2277 param->ddp_max_name_len = LDISKFS_NAME_LEN;
2278 param->ddp_max_nlink = LDISKFS_LINK_MAX;
2279 param->ddp_symlink_max = sb->s_blocksize;
2280 param->ddp_mount_type = LDD_MT_LDISKFS;
2281 if (ldiskfs_has_feature_extents(sb))
2282 param->ddp_maxbytes = sb->s_maxbytes;
2284 param->ddp_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
2286 * inode are statically allocated, so per-inode space consumption
2287 * is the space consumed by the directory entry
2289 param->ddp_inodespace = PER_OBJ_USAGE;
2291 * EXT_INIT_MAX_LEN is the theoretical maximum extent size (32k blocks
2292 * is 128MB) which is unlikely to be hit in real life. Report a smaller
2293 * maximum length to not under-count the actual number of extents
2294 * needed for writing a file if there are sub-optimal block allocations.
2296 param->ddp_max_extent_blks = EXT_INIT_MAX_LEN >> 1;
2297 /* worst-case extent insertion metadata overhead */
2298 param->ddp_extent_tax = 6 * LDISKFS_BLOCK_SIZE(sb);
2299 param->ddp_mntopts = 0;
2300 if (test_opt(sb, XATTR_USER))
2301 param->ddp_mntopts |= MNTOPT_USERXATTR;
2302 if (test_opt(sb, POSIX_ACL))
2303 param->ddp_mntopts |= MNTOPT_ACL;
2306 * LOD might calculate the max stripe count based on max_ea_size,
2307 * so we need take account in the overhead as well,
2308 * xattr_header + magic + xattr_entry_head
2310 ea_overhead = sizeof(struct ldiskfs_xattr_header) + sizeof(__u32) +
2311 LDISKFS_XATTR_LEN(XATTR_NAME_MAX_LEN);
2313 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
2314 if (ldiskfs_has_feature_ea_inode(sb))
2315 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE -
2319 param->ddp_max_ea_size = sb->s_blocksize - ea_overhead;
2321 if (param->ddp_max_ea_size > OBD_MAX_EA_SIZE)
2322 param->ddp_max_ea_size = OBD_MAX_EA_SIZE;
2325 * Preferred RPC size for efficient disk IO. 4MB shows good
2326 * all-around performance for ldiskfs, but use bigalloc chunk size
2327 * by default if larger.
2329 #if defined(LDISKFS_CLUSTER_SIZE)
2330 if (LDISKFS_CLUSTER_SIZE(sb) > DT_DEF_BRW_SIZE)
2331 param->ddp_brw_size = LDISKFS_CLUSTER_SIZE(sb);
2334 param->ddp_brw_size = DT_DEF_BRW_SIZE;
2336 param->ddp_t10_cksum_type = 0;
2338 unsigned short interval = blk_integrity_interval(bi);
2339 name = blk_integrity_name(bi);
2347 if (strncmp(name, "T10-DIF-TYPE",
2348 sizeof("T10-DIF-TYPE") - 1) == 0) {
2349 /* also skip "1/3-" at end */
2350 const int type_off = sizeof("T10-DIF-TYPE.");
2351 char type_number = name[type_off - 2];
2353 if (interval != 512 && interval != 4096) {
2354 CERROR("%s: unsupported T10PI sector size %u\n",
2355 d->od_svname, interval);
2356 } else if (type_number != '1' && type_number != '3') {
2357 CERROR("%s: unsupported T10PI type %s\n",
2358 d->od_svname, name);
2359 } else if (strcmp(name + type_off, "CRC") == 0) {
2360 d->od_t10_type = type_number == '1' ?
2361 OSD_T10_TYPE1_CRC : OSD_T10_TYPE3_CRC;
2362 param->ddp_t10_cksum_type = interval == 512 ?
2363 OBD_CKSUM_T10CRC512 :
2365 } else if (strcmp(name + type_off, "IP") == 0) {
2366 d->od_t10_type = type_number == '1' ?
2367 OSD_T10_TYPE1_IP : OSD_T10_TYPE3_IP;
2368 param->ddp_t10_cksum_type = interval == 512 ?
2369 OBD_CKSUM_T10IP512 :
2372 CERROR("%s: unsupported checksum type of "
2374 d->od_svname, name);
2378 CERROR("%s: unsupported T10PI type '%s'",
2379 d->od_svname, name);
2384 static struct super_block *osd_mnt_sb_get(const struct dt_device *d)
2386 return osd_sb(osd_dt_dev(d));
2390 * Concurrency: shouldn't matter.
2392 static int osd_sync(const struct lu_env *env, struct dt_device *d)
2395 struct super_block *s = osd_sb(osd_dt_dev(d));
2398 down_read(&s->s_umount);
2399 rc = s->s_op->sync_fs(s, 1);
2400 up_read(&s->s_umount);
2402 CDEBUG(D_CACHE, "%s: synced OSD: rc = %d\n", osd_dt_dev(d)->od_svname,
2409 * Start commit for OSD device.
2411 * An implementation of dt_commit_async method for OSD device.
2412 * Asychronously starts underlayng fs sync and thereby a transaction
2415 * \param env environment
2416 * \param d dt device
2418 * \see dt_device_operations
2420 static int osd_commit_async(const struct lu_env *env,
2421 struct dt_device *d)
2423 struct super_block *s = osd_sb(osd_dt_dev(d));
2428 CDEBUG(D_HA, "%s: async commit OSD\n", osd_dt_dev(d)->od_svname);
2429 down_read(&s->s_umount);
2430 rc = s->s_op->sync_fs(s, 0);
2431 up_read(&s->s_umount);
2436 static int (*priv_security_file_alloc)(struct file *file);
2438 int osd_security_file_alloc(struct file *file)
2440 if (priv_security_file_alloc)
2441 return priv_security_file_alloc(file);
2446 * Concurrency: shouldn't matter.
2448 static int osd_ro(const struct lu_env *env, struct dt_device *d)
2450 struct super_block *sb = osd_sb(osd_dt_dev(d));
2451 struct block_device *dev = sb->s_bdev;
2452 int rc = -EOPNOTSUPP;
2456 CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
2457 osd_dt_dev(d)->od_svname, (long)dev, rc);
2463 * Note: we do not count into QUOTA here.
2464 * If we mount with --data_journal we may need more.
2466 const int osd_dto_credits_noquota[DTO_NR] = {
2469 * INDEX_EXTRA_TRANS_BLOCKS(8) +
2470 * SINGLEDATA_TRANS_BLOCKS(8)
2471 * XXX Note: maybe iam need more, since iam have more level than
2474 [DTO_INDEX_INSERT] = 16,
2477 * just modify a single entry, probably merge few within a block
2479 [DTO_INDEX_DELETE] = 1,
2483 [DTO_INDEX_UPDATE] = 16,
2485 * 4(inode, inode bits, groups, GDT)
2486 * notice: OI updates are counted separately with DTO_INDEX_INSERT
2488 [DTO_OBJECT_CREATE] = 4,
2490 * 4(inode, inode bits, groups, GDT)
2491 * notice: OI updates are counted separately with DTO_INDEX_DELETE
2493 [DTO_OBJECT_DELETE] = 4,
2495 * Attr set credits (inode)
2497 [DTO_ATTR_SET_BASE] = 1,
2499 * Xattr set. The same as xattr of EXT3.
2500 * DATA_TRANS_BLOCKS(14)
2501 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
2502 * are also counted in. Do not know why?
2504 [DTO_XATTR_SET] = 14,
2506 * credits for inode change during write.
2508 [DTO_WRITE_BASE] = 3,
2510 * credits for single block write.
2512 [DTO_WRITE_BLOCK] = 14,
2514 * Attr set credits for chown.
2515 * This is extra credits for setattr, and it is null without quota
2517 [DTO_ATTR_SET_CHOWN] = 0
2520 static const struct dt_device_operations osd_dt_ops = {
2521 .dt_root_get = osd_root_get,
2522 .dt_statfs = osd_statfs,
2523 .dt_trans_create = osd_trans_create,
2524 .dt_trans_start = osd_trans_start,
2525 .dt_trans_stop = osd_trans_stop,
2526 .dt_trans_cb_add = osd_trans_cb_add,
2527 .dt_conf_get = osd_conf_get,
2528 .dt_mnt_sb_get = osd_mnt_sb_get,
2529 .dt_sync = osd_sync,
2531 .dt_commit_async = osd_commit_async,
2534 static void osd_read_lock(const struct lu_env *env, struct dt_object *dt,
2537 struct osd_object *obj = osd_dt_obj(dt);
2538 struct osd_thread_info *oti = osd_oti_get(env);
2540 LINVRNT(osd_invariant(obj));
2542 LASSERT(obj->oo_owner != env);
2543 down_read_nested(&obj->oo_sem, role);
2545 LASSERT(obj->oo_owner == NULL);
2549 static void osd_write_lock(const struct lu_env *env, struct dt_object *dt,
2552 struct osd_object *obj = osd_dt_obj(dt);
2553 struct osd_thread_info *oti = osd_oti_get(env);
2555 LINVRNT(osd_invariant(obj));
2557 LASSERT(obj->oo_owner != env);
2558 down_write_nested(&obj->oo_sem, role);
2560 LASSERT(obj->oo_owner == NULL);
2561 obj->oo_owner = env;
2565 static void osd_read_unlock(const struct lu_env *env, struct dt_object *dt)
2567 struct osd_object *obj = osd_dt_obj(dt);
2568 struct osd_thread_info *oti = osd_oti_get(env);
2570 LINVRNT(osd_invariant(obj));
2572 LASSERT(oti->oti_r_locks > 0);
2574 up_read(&obj->oo_sem);
2577 static void osd_write_unlock(const struct lu_env *env, struct dt_object *dt)
2579 struct osd_object *obj = osd_dt_obj(dt);
2580 struct osd_thread_info *oti = osd_oti_get(env);
2582 LINVRNT(osd_invariant(obj));
2584 LASSERT(obj->oo_owner == env);
2585 LASSERT(oti->oti_w_locks > 0);
2587 obj->oo_owner = NULL;
2588 up_write(&obj->oo_sem);
2591 static int osd_write_locked(const struct lu_env *env, struct dt_object *dt)
2593 struct osd_object *obj = osd_dt_obj(dt);
2595 LINVRNT(osd_invariant(obj));
2597 return obj->oo_owner == env;
2600 static void osd_inode_getattr(const struct lu_env *env,
2601 struct inode *inode, struct lu_attr *attr)
2603 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
2604 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
2605 LA_PROJID | LA_FLAGS | LA_NLINK | LA_RDEV |
2606 LA_BLKSIZE | LA_TYPE | LA_BTIME;
2608 attr->la_atime = inode->i_atime.tv_sec;
2609 attr->la_mtime = inode->i_mtime.tv_sec;
2610 attr->la_ctime = inode->i_ctime.tv_sec;
2611 attr->la_btime = LDISKFS_I(inode)->i_crtime.tv_sec;
2612 attr->la_mode = inode->i_mode;
2613 attr->la_size = i_size_read(inode);
2614 attr->la_blocks = inode->i_blocks;
2615 attr->la_uid = i_uid_read(inode);
2616 attr->la_gid = i_gid_read(inode);
2617 attr->la_projid = i_projid_read(inode);
2618 attr->la_flags = ll_inode_to_ext_flags(inode->i_flags);
2619 attr->la_nlink = inode->i_nlink;
2620 attr->la_rdev = inode->i_rdev;
2621 attr->la_blksize = 1 << inode->i_blkbits;
2622 attr->la_blkbits = inode->i_blkbits;
2624 * Ext4 did not transfer inherit flags from raw inode
2625 * to inode flags, and ext4 internally test raw inode
2626 * @i_flags directly. Instead of patching ext4, we do it here.
2628 if (LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL)
2629 attr->la_flags |= LUSTRE_PROJINHERIT_FL;
2632 static int osd_dirent_count(const struct lu_env *env, struct dt_object *dt,
2635 struct osd_object *obj = osd_dt_obj(dt);
2636 const struct dt_it_ops *iops;
2642 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
2643 LASSERT(fid_is_namespace_visible(lu_object_fid(&obj->oo_dt.do_lu)));
2645 if (obj->oo_dirent_count != LU_DIRENT_COUNT_UNSET) {
2646 *count = obj->oo_dirent_count;
2650 /* directory not initialized yet */
2651 if (!dt->do_index_ops) {
2656 iops = &dt->do_index_ops->dio_it;
2657 it = iops->init(env, dt, LUDA_64BITHASH);
2659 RETURN(PTR_ERR(it));
2661 rc = iops->load(env, it, 0);
2663 if (rc == -ENODATA) {
2670 rc = iops->next(env, it);
2672 for (*count = 0; rc == 0 || rc == -ESTALE; rc = iops->next(env, it)) {
2676 if (iops->key_size(env, it) == 0)
2682 obj->oo_dirent_count = *count;
2687 iops->fini(env, it);
2692 static int osd_attr_get(const struct lu_env *env, struct dt_object *dt,
2693 struct lu_attr *attr)
2695 struct osd_object *obj = osd_dt_obj(dt);
2698 if (unlikely(!dt_object_exists(dt)))
2700 if (unlikely(obj->oo_destroyed))
2703 LASSERT(!dt_object_remote(dt));
2704 LINVRNT(osd_invariant(obj));
2706 spin_lock(&obj->oo_guard);
2707 osd_inode_getattr(env, obj->oo_inode, attr);
2708 if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL) {
2709 attr->la_valid |= LA_FLAGS;
2710 attr->la_flags |= LUSTRE_ORPHAN_FL;
2712 if (obj->oo_lma_flags & LUSTRE_ENCRYPT_FL) {
2713 attr->la_valid |= LA_FLAGS;
2714 attr->la_flags |= LUSTRE_ENCRYPT_FL;
2716 spin_unlock(&obj->oo_guard);
2718 if (S_ISDIR(obj->oo_inode->i_mode) &&
2719 fid_is_namespace_visible(lu_object_fid(&dt->do_lu)))
2720 rc = osd_dirent_count(env, dt, &attr->la_dirent_count);
2725 static int osd_declare_attr_qid(const struct lu_env *env,
2726 struct osd_object *obj,
2727 struct osd_thandle *oh, long long bspace,
2728 qid_t old_id, qid_t new_id, bool enforce,
2729 unsigned int type, bool ignore_edquot)
2732 struct osd_thread_info *info = osd_oti_get(env);
2733 struct lquota_id_info *qi = &info->oti_qi;
2735 qi->lqi_type = type;
2736 /* inode accounting */
2737 qi->lqi_is_blk = false;
2739 /* one more inode for the new id ... */
2740 qi->lqi_id.qid_uid = new_id;
2742 /* Reserve credits for the new id */
2743 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
2744 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2749 /* and one less inode for the current id */
2750 qi->lqi_id.qid_uid = old_id;
2752 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2753 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2758 /* block accounting */
2759 qi->lqi_is_blk = true;
2761 /* more blocks for the new id ... */
2762 qi->lqi_id.qid_uid = new_id;
2763 qi->lqi_space = bspace;
2765 * Credits for the new uid has been reserved, re-use "obj"
2766 * to save credit reservation.
2768 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2769 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2774 /* and finally less blocks for the current uid */
2775 qi->lqi_id.qid_uid = old_id;
2776 qi->lqi_space = -bspace;
2777 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2778 if (ignore_edquot && (rc == -EDQUOT || rc == -EINPROGRESS))
2784 static int osd_declare_attr_set(const struct lu_env *env,
2785 struct dt_object *dt,
2786 const struct lu_attr *attr,
2787 struct thandle *handle)
2789 struct osd_thandle *oh;
2790 struct osd_object *obj;
2799 LASSERT(dt != NULL);
2800 LASSERT(handle != NULL);
2802 obj = osd_dt_obj(dt);
2803 LASSERT(osd_invariant(obj));
2805 oh = container_of(handle, struct osd_thandle, ot_super);
2806 LASSERT(oh->ot_handle == NULL);
2808 osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
2809 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2811 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
2812 osd_dto_credits_noquota[DTO_XATTR_SET]);
2814 if (attr == NULL || obj->oo_inode == NULL)
2817 bspace = obj->oo_inode->i_blocks << 9;
2818 bspace = toqb(bspace);
2821 * Changing ownership is always preformed by super user, it should not
2822 * fail with EDQUOT unless required explicitly.
2824 * We still need to call the osd_declare_qid() to calculate the journal
2825 * credits for updating quota accounting files and to trigger quota
2826 * space adjustment once the operation is completed.
2828 if (attr->la_valid & LA_UID || attr->la_valid & LA_GID) {
2829 bool ignore_edquot = !(attr->la_flags & LUSTRE_SET_SYNC_FL);
2832 CDEBUG(D_QUOTA, "%s: enforce quota on UID %u, GID %u"
2833 "(the quota space is %lld)\n",
2834 obj->oo_inode->i_sb->s_id, attr->la_uid,
2835 attr->la_gid, bspace);
2838 uid = i_uid_read(obj->oo_inode);
2839 enforce = (attr->la_valid & LA_UID) && (attr->la_uid != uid);
2840 rc = osd_declare_attr_qid(env, obj, oh, bspace, uid,
2841 attr->la_uid, enforce, USRQUOTA,
2846 gid = i_gid_read(obj->oo_inode);
2847 CDEBUG(D_QUOTA, "declare uid %d -> %d gid %d -> %d\n", uid,
2848 attr->la_uid, gid, attr->la_gid);
2849 enforce = (attr->la_valid & LA_GID) && (attr->la_gid != gid);
2850 rc = osd_declare_attr_qid(env, obj, oh, bspace, gid,
2851 attr->la_gid, enforce, GRPQUOTA,
2857 #ifdef HAVE_PROJECT_QUOTA
2858 if (attr->la_valid & LA_PROJID) {
2859 __u32 projid = i_projid_read(obj->oo_inode);
2861 enforce = (attr->la_valid & LA_PROJID) &&
2862 (attr->la_projid != projid);
2863 rc = osd_declare_attr_qid(env, obj, oh, bspace,
2864 (qid_t)projid, (qid_t)attr->la_projid,
2865 enforce, PRJQUOTA, true);
2873 static int osd_inode_setattr(const struct lu_env *env,
2874 struct inode *inode, const struct lu_attr *attr)
2876 __u64 bits = attr->la_valid;
2878 /* Only allow set size for regular file */
2879 if (!S_ISREG(inode->i_mode))
2880 bits &= ~(LA_SIZE | LA_BLOCKS);
2885 if (bits & LA_ATIME)
2886 inode->i_atime = osd_inode_time(inode, attr->la_atime);
2887 if (bits & LA_CTIME)
2888 inode->i_ctime = osd_inode_time(inode, attr->la_ctime);
2889 if (bits & LA_MTIME)
2890 inode->i_mtime = osd_inode_time(inode, attr->la_mtime);
2891 if (bits & LA_SIZE) {
2892 spin_lock(&inode->i_lock);
2893 LDISKFS_I(inode)->i_disksize = attr->la_size;
2894 i_size_write(inode, attr->la_size);
2895 spin_unlock(&inode->i_lock);
2899 * OSD should not change "i_blocks" which is used by quota.
2900 * "i_blocks" should be changed by ldiskfs only.
2903 inode->i_mode = (inode->i_mode & S_IFMT) |
2904 (attr->la_mode & ~S_IFMT);
2906 i_uid_write(inode, attr->la_uid);
2908 i_gid_write(inode, attr->la_gid);
2909 if (bits & LA_PROJID)
2910 i_projid_write(inode, attr->la_projid);
2911 if (bits & LA_NLINK)
2912 set_nlink(inode, attr->la_nlink);
2914 inode->i_rdev = attr->la_rdev;
2916 if (bits & LA_FLAGS) {
2917 /* always keep S_NOCMTIME */
2918 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
2920 #if defined(S_ENCRYPTED)
2921 /* Always remove S_ENCRYPTED, because ldiskfs must not be
2922 * aware of encryption status. It is just stored into LMA
2923 * so that it can be forwared to client side.
2925 inode->i_flags &= ~S_ENCRYPTED;
2928 * Ext4 did not transfer inherit flags from
2929 * @inode->i_flags to raw inode i_flags when writing
2930 * flags, we do it explictly here.
2932 if (attr->la_flags & LUSTRE_PROJINHERIT_FL)
2933 LDISKFS_I(inode)->i_flags |= LUSTRE_PROJINHERIT_FL;
2935 LDISKFS_I(inode)->i_flags &= ~LUSTRE_PROJINHERIT_FL;
2940 #ifdef HAVE_PROJECT_QUOTA
2941 static int osd_transfer_project(struct inode *inode, __u32 projid,
2942 struct thandle *handle)
2944 struct super_block *sb = inode->i_sb;
2945 struct ldiskfs_inode_info *ei = LDISKFS_I(inode);
2948 struct ldiskfs_iloc iloc;
2949 struct ldiskfs_inode *raw_inode;
2950 struct dquot *transfer_to[LDISKFS_MAXQUOTAS] = { };
2952 if (!ldiskfs_has_feature_project(sb)) {
2953 LASSERT(__kprojid_val(LDISKFS_I(inode)->i_projid)
2954 == LDISKFS_DEF_PROJID);
2955 if (projid != LDISKFS_DEF_PROJID)
2961 if (LDISKFS_INODE_SIZE(sb) <= LDISKFS_GOOD_OLD_INODE_SIZE)
2964 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
2965 if (projid_eq(kprojid, LDISKFS_I(inode)->i_projid))
2968 err = ldiskfs_get_inode_loc(inode, &iloc);
2972 raw_inode = ldiskfs_raw_inode(&iloc);
2973 if (!LDISKFS_FITS_IN_INODE(raw_inode, ei, i_projid)) {
2974 struct osd_thandle *oh =
2975 container_of0(handle, struct osd_thandle,
2978 * try to expand inode size automatically.
2980 ldiskfs_mark_inode_dirty(oh->ot_handle, inode);
2981 if (!LDISKFS_FITS_IN_INODE(raw_inode, ei, i_projid)) {
2989 dquot_initialize(inode);
2990 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
2991 if (transfer_to[PRJQUOTA]) {
2992 err = __dquot_transfer(inode, transfer_to);
2993 dqput(transfer_to[PRJQUOTA]);
3002 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr,
3003 struct thandle *handle)
3007 if ((attr->la_valid & LA_UID && attr->la_uid != i_uid_read(inode)) ||
3008 (attr->la_valid & LA_GID && attr->la_gid != i_gid_read(inode))) {
3012 "executing dquot_transfer inode %ld uid %d -> %d gid %d -> %d\n",
3013 inode->i_ino, i_uid_read(inode), attr->la_uid,
3014 i_gid_read(inode), attr->la_gid);
3016 dquot_initialize(inode);
3018 if (attr->la_valid & LA_UID)
3019 iattr.ia_valid |= ATTR_UID;
3020 if (attr->la_valid & LA_GID)
3021 iattr.ia_valid |= ATTR_GID;
3022 iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
3023 iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
3025 rc = dquot_transfer(inode, &iattr);
3027 CERROR("%s: quota transfer failed: rc = %d. Is quota "
3028 "enforcement enabled on the ldiskfs "
3029 "filesystem?\n", inode->i_sb->s_id, rc);
3034 /* Handle project id transfer here properly */
3035 if (attr->la_valid & LA_PROJID &&
3036 attr->la_projid != i_projid_read(inode)) {
3037 #ifdef HAVE_PROJECT_QUOTA
3038 rc = osd_transfer_project(inode, attr->la_projid, handle);
3043 CERROR("%s: quota transfer failed: rc = %d. Is project "
3044 "enforcement enabled on the ldiskfs "
3045 "filesystem?\n", inode->i_sb->s_id, rc);
3052 static int osd_attr_set(const struct lu_env *env,
3053 struct dt_object *dt,
3054 const struct lu_attr *attr,
3055 struct thandle *handle)
3057 struct osd_object *obj = osd_dt_obj(dt);
3058 struct inode *inode;
3061 if (!dt_object_exists(dt))
3064 LASSERT(handle != NULL);
3065 LASSERT(!dt_object_remote(dt));
3066 LASSERT(osd_invariant(obj));
3068 osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
3070 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING) &&
3071 !osd_obj2dev(obj)->od_is_ost) {
3072 struct osd_thread_info *oti = osd_oti_get(env);
3073 const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
3074 struct lu_fid *fid1 = &oti->oti_fid;
3075 struct osd_inode_id *id = &oti->oti_id;
3076 struct iam_path_descr *ipd;
3077 struct iam_container *bag;
3078 struct osd_thandle *oh;
3081 fid_cpu_to_be(fid1, fid0);
3082 memset(id, 1, sizeof(*id));
3083 bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
3084 fid0)->oi_dir.od_container;
3085 ipd = osd_idx_ipd_get(env, bag);
3086 if (unlikely(ipd == NULL))
3089 oh = container_of(handle, struct osd_thandle, ot_super);
3090 rc = iam_update(oh->ot_handle, bag,
3091 (const struct iam_key *)fid1,
3092 (const struct iam_rec *)id, ipd);
3093 osd_ipd_put(env, bag, ipd);
3094 return(rc > 0 ? 0 : rc);
3097 inode = obj->oo_inode;
3099 rc = osd_quota_transfer(inode, attr, handle);
3103 spin_lock(&obj->oo_guard);
3104 rc = osd_inode_setattr(env, inode, attr);
3105 spin_unlock(&obj->oo_guard);
3109 osd_dirty_inode(inode, I_DIRTY_DATASYNC);
3111 osd_trans_exec_check(env, handle, OSD_OT_ATTR_SET);
3113 if (!(attr->la_valid & LA_FLAGS))
3116 /* Let's check if there are extra flags need to be set into LMA */
3117 if (attr->la_flags & LUSTRE_LMA_FL_MASKS) {
3118 struct osd_thread_info *info = osd_oti_get(env);
3119 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
3121 LASSERT(!obj->oo_pfid_in_lma);
3123 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
3124 &info->oti_ost_attrs);
3128 lma->lma_incompat |=
3129 lustre_to_lma_flags(attr->la_flags);
3130 lustre_lma_swab(lma);
3132 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
3134 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA,
3135 lma, sizeof(*lma), XATTR_REPLACE);
3137 struct osd_device *osd = osd_obj2dev(obj);
3139 CWARN("%s: set "DFID" lma flags %u failed: rc = %d\n",
3140 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)),
3141 lma->lma_incompat, rc);
3144 attr->la_flags & LUSTRE_LMA_FL_MASKS;
3146 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
3153 static struct dentry *osd_child_dentry_get(const struct lu_env *env,
3154 struct osd_object *obj,
3155 const char *name, const int namelen)
3157 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
3160 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
3161 umode_t mode, struct dt_allocation_hint *hint,
3162 struct thandle *th, struct lu_attr *attr)
3165 struct osd_device *osd = osd_obj2dev(obj);
3166 struct osd_thandle *oth;
3167 struct dt_object *parent = NULL;
3168 struct inode *inode;
3169 uid_t owner[2] = {0, 0};
3171 if (attr->la_valid & LA_UID)
3172 owner[0] = attr->la_uid;
3173 if (attr->la_valid & LA_GID)
3174 owner[1] = attr->la_gid;
3176 LINVRNT(osd_invariant(obj));
3177 LASSERT(obj->oo_inode == NULL);
3178 LASSERT(obj->oo_hl_head == NULL);
3180 if (S_ISDIR(mode) && ldiskfs_pdo) {
3182 ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
3183 if (obj->oo_hl_head == NULL)
3187 oth = container_of(th, struct osd_thandle, ot_super);
3188 LASSERT(oth->ot_handle->h_transaction != NULL);
3190 if (hint != NULL && hint->dah_parent != NULL &&
3191 !dt_object_remote(hint->dah_parent))
3192 parent = hint->dah_parent;
3194 inode = ldiskfs_create_inode(oth->ot_handle,
3195 parent ? osd_dt_obj(parent)->oo_inode :
3196 osd_sb(osd)->s_root->d_inode,
3198 if (!IS_ERR(inode)) {
3199 /* Do not update file c/mtime in ldiskfs. */
3200 inode->i_flags |= S_NOCMTIME;
3203 * For new created object, it must be consistent,
3204 * and it is unnecessary to scrub against it.
3206 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
3208 obj->oo_inode = inode;
3211 if (obj->oo_hl_head != NULL) {
3212 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
3213 obj->oo_hl_head = NULL;
3215 result = PTR_ERR(inode);
3217 LINVRNT(osd_invariant(obj));
3225 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
3226 struct lu_attr *attr,
3227 struct dt_allocation_hint *hint,
3228 struct dt_object_format *dof,
3232 struct osd_thandle *oth;
3233 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX | S_ISGID));
3235 LASSERT(S_ISDIR(attr->la_mode));
3237 oth = container_of(th, struct osd_thandle, ot_super);
3238 LASSERT(oth->ot_handle->h_transaction != NULL);
3239 if (fid_is_namespace_visible(lu_object_fid(&obj->oo_dt.do_lu)))
3240 obj->oo_dirent_count = 0;
3241 result = osd_mkfile(info, obj, mode, hint, th, attr);
3246 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
3247 struct lu_attr *attr,
3248 struct dt_allocation_hint *hint,
3249 struct dt_object_format *dof,
3253 struct osd_thandle *oth;
3254 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
3256 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
3258 LASSERT(S_ISREG(attr->la_mode));
3260 oth = container_of(th, struct osd_thandle, ot_super);
3261 LASSERT(oth->ot_handle->h_transaction != NULL);
3263 result = osd_mkfile(info, obj, mode, hint, th, attr);
3265 LASSERT(obj->oo_inode != NULL);
3266 if (feat->dif_flags & DT_IND_VARKEY)
3267 result = iam_lvar_create(obj->oo_inode,
3268 feat->dif_keysize_max,
3270 feat->dif_recsize_max,
3273 result = iam_lfix_create(obj->oo_inode,
3274 feat->dif_keysize_max,
3276 feat->dif_recsize_max,
3282 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
3283 struct lu_attr *attr,
3284 struct dt_allocation_hint *hint,
3285 struct dt_object_format *dof,
3288 LASSERT(S_ISREG(attr->la_mode));
3289 return osd_mkfile(info, obj, (attr->la_mode &
3290 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th,
3294 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
3295 struct lu_attr *attr,
3296 struct dt_allocation_hint *hint,
3297 struct dt_object_format *dof,
3300 LASSERT(S_ISLNK(attr->la_mode));
3301 return osd_mkfile(info, obj, (attr->la_mode &
3302 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th,
3306 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
3307 struct lu_attr *attr,
3308 struct dt_allocation_hint *hint,
3309 struct dt_object_format *dof,
3312 umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
3315 LINVRNT(osd_invariant(obj));
3316 LASSERT(obj->oo_inode == NULL);
3317 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
3318 S_ISFIFO(mode) || S_ISSOCK(mode));
3320 result = osd_mkfile(info, obj, mode, hint, th, attr);
3322 LASSERT(obj->oo_inode != NULL);
3324 * This inode should be marked dirty for i_rdev. Currently
3325 * that is done in the osd_attr_init().
3327 init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
3330 LINVRNT(osd_invariant(obj));
3334 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
3336 struct dt_allocation_hint *hint,
3337 struct dt_object_format *dof,
3340 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
3342 osd_obj_type_f result;
3358 result = osd_mk_index;
3369 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
3370 struct dt_object *parent, struct dt_object *child,
3375 ah->dah_parent = parent;
3376 ah->dah_mode = child_mode;
3378 if (parent != NULL && !dt_object_remote(parent)) {
3379 /* will help to find FID->ino at dt_insert("..") */
3380 struct osd_object *pobj = osd_dt_obj(parent);
3382 osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
3386 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
3387 struct lu_attr *attr, struct dt_object_format *dof,
3388 struct thandle *handle)
3390 struct inode *inode = obj->oo_inode;
3391 __u64 valid = attr->la_valid;
3394 attr->la_valid &= ~(LA_TYPE | LA_MODE);
3396 if (dof->dof_type != DFT_NODE)
3397 attr->la_valid &= ~LA_RDEV;
3398 if ((valid & LA_ATIME) && (attr->la_atime == inode->i_atime.tv_sec))
3399 attr->la_valid &= ~LA_ATIME;
3400 if ((valid & LA_CTIME) && (attr->la_ctime == inode->i_ctime.tv_sec))
3401 attr->la_valid &= ~LA_CTIME;
3402 if ((valid & LA_MTIME) && (attr->la_mtime == inode->i_mtime.tv_sec))
3403 attr->la_valid &= ~LA_MTIME;
3405 result = osd_quota_transfer(inode, attr, handle);
3409 if (attr->la_valid != 0) {
3410 result = osd_inode_setattr(info->oti_env, inode, attr);
3412 * The osd_inode_setattr() should always succeed here. The
3413 * only error that could be returned is EDQUOT when we are
3414 * trying to change the UID or GID of the inode. However, this
3415 * should not happen since quota enforcement is no longer
3416 * enabled on ldiskfs (lquota takes care of it).
3418 LASSERTF(result == 0, "%d\n", result);
3419 osd_dirty_inode(inode, I_DIRTY_DATASYNC);
3422 attr->la_valid = valid;
3426 * Helper function for osd_create()
3428 * \retval 0, on success
3430 static int __osd_create(struct osd_thread_info *info, struct osd_object *obj,
3431 struct lu_attr *attr, struct dt_allocation_hint *hint,
3432 struct dt_object_format *dof, struct thandle *th)
3437 osd_trans_exec_op(info->oti_env, th, OSD_OT_CREATE);
3439 /* we drop umask so that permissions we pass are not affected */
3440 umask = current->fs->umask;
3441 current->fs->umask = 0;
3443 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
3445 if (likely(obj->oo_inode != NULL)) {
3446 LASSERT(obj->oo_inode->i_state & I_NEW);
3449 * Unlock the inode before attr initialization to avoid
3450 * unnecessary dqget operations. LU-6378
3452 unlock_new_inode(obj->oo_inode);
3455 if (likely(result == 0)) {
3456 osd_attr_init(info, obj, attr, dof, th);
3457 osd_object_init0(obj);
3460 /* restore previous umask value */
3461 current->fs->umask = umask;
3463 osd_trans_exec_check(info->oti_env, th, OSD_OT_CREATE);
3469 * Helper function for osd_create()
3471 * \retval 0, on success
3473 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
3474 const struct lu_fid *fid, struct thandle *th)
3476 struct osd_thread_info *info = osd_oti_get(env);
3477 struct osd_inode_id *id = &info->oti_id;
3478 struct osd_device *osd = osd_obj2dev(obj);
3479 struct osd_thandle *oh;
3482 LASSERT(obj->oo_inode != NULL);
3484 oh = container_of(th, struct osd_thandle, ot_super);
3485 LASSERT(oh->ot_handle);
3486 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3488 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
3489 rc = osd_oi_insert(info, osd, fid, id, oh->ot_handle,
3490 OI_CHECK_FLD, NULL);
3491 if (CFS_FAIL_CHECK(OBD_FAIL_OSD_DUPLICATE_MAP) && osd->od_is_ost) {
3492 struct lu_fid next_fid = *fid;
3494 /* insert next object in advance, and map to the same inode */
3496 if (next_fid.f_oid != 0) {
3497 osd_trans_exec_op(env, th, OSD_OT_INSERT);
3498 osd_oi_insert(info, osd, &next_fid, id, oh->ot_handle,
3499 OI_CHECK_FLD, NULL);
3500 osd_trans_exec_check(env, th, OSD_OT_INSERT);
3504 osd_trans_exec_check(env, th, OSD_OT_INSERT);
3509 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
3510 u64 seq, struct lu_seq_range *range)
3512 struct seq_server_site *ss = osd_seq_site(osd);
3514 if (fid_seq_is_idif(seq)) {
3515 fld_range_set_ost(range);
3516 range->lsr_index = idif_ost_idx(seq);
3520 if (!fid_seq_in_fldb(seq)) {
3521 fld_range_set_mdt(range);
3524 * FIXME: If ss is NULL, it suppose not get lsr_index
3527 range->lsr_index = ss->ss_node_id;
3531 LASSERT(ss != NULL);
3532 fld_range_set_any(range);
3533 /* OSD will only do local fld lookup */
3534 return fld_local_lookup(env, ss->ss_server_fld, seq, range);
3537 static int osd_declare_create(const struct lu_env *env, struct dt_object *dt,
3538 struct lu_attr *attr,
3539 struct dt_allocation_hint *hint,
3540 struct dt_object_format *dof,
3541 struct thandle *handle)
3543 struct osd_thandle *oh;
3548 LASSERT(handle != NULL);
3550 oh = container_of(handle, struct osd_thandle, ot_super);
3551 LASSERT(oh->ot_handle == NULL);
3554 * EA object consumes more credits than regular object: osd_mk_index
3555 * vs. osd_mkreg: osd_mk_index will create 2 blocks for root_node and
3556 * leaf_node, could involves the block, block bitmap, groups, GDT
3557 * change for each block, so add 4 * 2 credits in that case.
3559 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
3560 osd_dto_credits_noquota[DTO_OBJECT_CREATE] +
3561 (dof->dof_type == DFT_INDEX) ? 4 * 2 : 0);
3563 * Reuse idle OI block may cause additional one OI block
3566 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3567 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
3568 if (CFS_FAIL_CHECK(OBD_FAIL_OSD_DUPLICATE_MAP))
3569 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
3570 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
3572 /* will help to find FID->ino mapping at dt_insert() */
3573 rc = osd_idc_find_and_init(env, osd_obj2dev(osd_dt_obj(dt)),
3581 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid,
3582 attr->la_projid, 1, oh, osd_dt_obj(dt),
3583 NULL, OSD_QID_INODE);
3591 * Called to destroy on-disk representation of the object
3593 * Concurrency: must be locked
3595 static int osd_declare_destroy(const struct lu_env *env, struct dt_object *dt,
3598 struct osd_object *obj = osd_dt_obj(dt);
3599 struct inode *inode = obj->oo_inode;
3600 struct osd_thandle *oh;
3608 oh = container_of(th, struct osd_thandle, ot_super);
3609 LASSERT(oh->ot_handle == NULL);
3611 osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
3612 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
3614 /* For removing agent entry */
3615 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu))
3616 oh->ot_credits += osd_dto_credits_noquota[DTO_INDEX_DELETE];
3619 * Recycle idle OI leaf may cause additional three OI blocks
3622 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3623 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3624 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
3625 /* one less inode */
3626 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3627 i_projid_read(inode), -1, oh, obj, NULL,
3631 /* data to be truncated */
3632 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3633 i_projid_read(inode), 0, oh, obj, NULL,
3639 * will help to find FID->ino when this object is being
3642 rc = osd_idc_find_and_init(env, osd_obj2dev(obj), obj);
3647 static int osd_destroy(const struct lu_env *env, struct dt_object *dt,
3650 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3651 struct osd_object *obj = osd_dt_obj(dt);
3652 struct inode *inode = obj->oo_inode;
3653 struct osd_device *osd = osd_obj2dev(obj);
3654 struct osd_thandle *oh;
3659 oh = container_of(th, struct osd_thandle, ot_super);
3660 LASSERT(oh->ot_handle);
3662 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
3664 if (unlikely(fid_is_acct(fid)))
3667 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu)) {
3668 result = osd_delete_from_remote_parent(env, osd, obj, oh, true);
3670 CERROR("%s: remove agent entry "DFID": rc = %d\n",
3671 osd_name(osd), PFID(fid), result);
3674 if (S_ISDIR(inode->i_mode)) {
3675 LASSERT(osd_inode_unlinked(inode) || inode->i_nlink == 1 ||
3676 inode->i_nlink == 2);
3678 spin_lock(&obj->oo_guard);
3680 spin_unlock(&obj->oo_guard);
3681 osd_dirty_inode(inode, I_DIRTY_DATASYNC);
3684 osd_trans_exec_op(env, th, OSD_OT_DESTROY);
3686 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
3688 if (!OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LOST_MDTOBJ2))
3689 result = osd_oi_delete(osd_oti_get(env), osd, fid,
3690 oh->ot_handle, OI_CHECK_FLD);
3692 osd_trans_exec_check(env, th, OSD_OT_DESTROY);
3693 /* XXX: add to ext3 orphan list */
3694 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
3696 /* not needed in the cache anymore */
3697 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
3698 obj->oo_destroyed = 1;
3704 * Put the fid into lustre_mdt_attrs, and then place the structure
3705 * inode's ea. This fid should not be altered during the life time
3708 * \retval +ve, on success
3709 * \retval -ve, on error
3711 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
3713 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
3714 const struct lu_fid *fid, __u32 compat, __u32 incompat)
3716 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
3717 struct lustre_mdt_attrs *lma = &loa->loa_lma;
3722 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INLMA))
3725 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_OST_EA_FID_SET))
3728 lustre_loa_init(loa, fid, compat, incompat);
3729 lustre_loa_swab(loa, false);
3732 * For the OST device with 256 bytes inode size by default,
3733 * the PFID EA will be stored together with LMA EA to avoid
3734 * performance trouble. Otherwise the PFID EA can be stored
3735 * independently. LU-8998
3737 if ((compat & LMAC_FID_ON_OST) &&
3738 LDISKFS_INODE_SIZE(inode->i_sb) <= 256)
3739 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3740 sizeof(*loa), XATTR_CREATE);
3742 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3743 sizeof(*lma), XATTR_CREATE);
3745 * LMA may already exist, but we need to check that all the
3746 * desired compat/incompat flags have been added.
3748 if (unlikely(rc == -EEXIST)) {
3749 rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
3750 XATTR_NAME_LMA, (void *)loa, sizeof(*loa));
3754 if (rc < sizeof(*lma))
3757 lustre_loa_swab(loa, true);
3758 if (lu_fid_eq(fid, &lma->lma_self_fid) &&
3759 ((compat == 0 && incompat == 0) ||
3760 (!(~lma->lma_compat & compat) &&
3761 !(~lma->lma_incompat & incompat))))
3764 lma->lma_self_fid = *fid;
3765 lma->lma_compat |= compat;
3766 lma->lma_incompat |= incompat;
3767 if (rc == sizeof(*lma)) {
3768 lustre_lma_swab(lma);
3769 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3770 sizeof(*lma), XATTR_REPLACE);
3772 lustre_loa_swab(loa, false);
3773 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa,
3774 sizeof(*loa), XATTR_REPLACE);
3782 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
3783 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
3784 * To have compatilibility with 1.8 ldiskfs driver we need to have
3785 * magic number at start of fid data.
3786 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
3789 static void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
3790 const struct lu_fid *fid)
3792 if (!fid_is_namespace_visible(fid) ||
3793 OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
3794 param->edp_magic = 0;
3798 param->edp_magic = LDISKFS_LUFID_MAGIC;
3799 param->edp_len = sizeof(struct lu_fid) + 1;
3800 fid_cpu_to_be((struct lu_fid *)param->edp_data, (struct lu_fid *)fid);
3804 * Try to read the fid from inode ea into dt_rec.
3806 * \param fid object fid.
3808 * \retval 0 on success
3810 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
3811 __u32 ino, struct lu_fid *fid,
3812 struct osd_inode_id *id)
3814 struct osd_thread_info *info = osd_oti_get(env);
3815 struct inode *inode;
3819 osd_id_gen(id, ino, OSD_OII_NOGEN);
3820 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
3822 RETURN(PTR_ERR(inode));
3828 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
3830 struct inode *parent_dir,
3831 const struct lu_fid *dot_fid,
3832 const struct lu_fid *dot_dot_fid,
3833 struct osd_thandle *oth)
3835 struct ldiskfs_dentry_param *dot_ldp;
3836 struct ldiskfs_dentry_param *dot_dot_ldp;
3837 __u32 saved_nlink = dir->i_nlink;
3840 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
3841 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
3843 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
3844 dot_ldp->edp_magic = 0;
3846 rc = ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
3847 dir, dot_ldp, dot_dot_ldp);
3849 * The ldiskfs_add_dot_dotdot() may dir->i_nlink as 2, then
3850 * the subseqent ref_add() will increase the dir->i_nlink
3851 * as 3. That is incorrect for new created directory.
3853 * It looks like hack, because we want to make the OSD API
3854 * to be order-independent for new created directory object
3855 * between dt_insert(..) and ref_add() operations.
3857 * Here, we only restore the in-RAM dir-inode's nlink attr,
3858 * becuase if the nlink attr is not 2, then there will be
3859 * ref_add() called following the dt_insert(..), such call
3860 * will make both the in-RAM and on-disk dir-inode's nlink
3861 * attr to be set as 2. LU-7447
3863 set_nlink(dir, saved_nlink);
3868 * Create an local agent inode for remote entry
3870 static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
3871 struct osd_device *osd,
3872 struct osd_object *pobj,
3873 const struct lu_fid *fid,
3877 struct osd_thread_info *info = osd_oti_get(env);
3878 struct inode *local;
3879 struct osd_thandle *oh;
3885 oh = container_of(th, struct osd_thandle, ot_super);
3886 LASSERT(oh->ot_handle->h_transaction != NULL);
3888 local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, type,
3890 if (IS_ERR(local)) {
3891 CERROR("%s: create local error %d\n", osd_name(osd),
3892 (int)PTR_ERR(local));
3897 * restore i_gid in case S_ISGID is set, we will inherit S_ISGID and set
3898 * correct gid on remote file, not agent here
3900 local->i_gid = current_fsgid();
3901 ldiskfs_set_inode_state(local, LDISKFS_STATE_LUSTRE_NOSCRUB);
3903 /* e2fsck doesn't like empty symlinks. Store remote FID as symlink.
3904 * That gives e2fsck something to look at and be happy, and allows
3905 * debugging if we need to determine where this symlink came from.
3907 if (S_ISLNK(type)) {
3908 BUILD_BUG_ON(LDISKFS_N_BLOCKS * 4 < FID_LEN + 1);
3909 rc = snprintf((char *)LDISKFS_I(local)->i_data,
3910 LDISKFS_N_BLOCKS * 4, DFID, PFID(fid));
3912 i_size_write(local, rc);
3913 LDISKFS_I(local)->i_disksize = rc;
3915 unlock_new_inode(local);
3917 /* Agent inode should not have project ID */
3918 #ifdef HAVE_PROJECT_QUOTA
3919 if (LDISKFS_I(pobj->oo_inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
3920 i_projid_read(pobj->oo_inode) != 0) {
3921 rc = osd_transfer_project(local, 0, th);
3923 CERROR("%s: quota transfer failed: rc = %d. Is project "
3924 "quota enforcement enabled on the ldiskfs "
3925 "filesystem?\n", local->i_sb->s_id, rc);
3926 RETURN(ERR_PTR(rc));
3930 /* Set special LMA flag for local agent inode */
3931 rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
3933 CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
3934 osd_name(osd), PFID(fid), rc);
3935 RETURN(ERR_PTR(rc));
3941 rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
3942 lu_object_fid(&pobj->oo_dt.do_lu),
3945 CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
3946 osd_name(osd), PFID(fid), rc);
3947 RETURN(ERR_PTR(rc));
3954 * when direntry is deleted, we have to take care of possible agent inode
3955 * referenced by that. unfortunately we can't do this at that point:
3956 * iget() within a running transaction leads to deadlock and we better do
3957 * not call that every delete declaration to save performance. so we put
3958 * a potention agent inode on a list and process that once the transaction
3959 * is over. Notice it's not any worse in terms of real orphans as regular
3960 * object destroy doesn't put inodes on the on-disk orphan list. this should
3961 * be addressed separately
3963 static int osd_schedule_agent_inode_removal(const struct lu_env *env,
3964 struct osd_thandle *oh,
3967 struct osd_device *osd = osd_dt_dev(oh->ot_super.th_dev);
3968 struct osd_obj_orphan *oor;
3975 oor->oor_env = (struct lu_env *)env;
3976 spin_lock(&osd->od_osfs_lock);
3977 list_add(&oor->oor_list, &osd->od_orphan_list);
3978 spin_unlock(&osd->od_osfs_lock);
3980 oh->ot_remove_agents = 1;
3986 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
3987 struct osd_device *osd)
3989 struct osd_thread_info *info = osd_oti_get(env);
3990 struct osd_obj_orphan *oor, *tmp;
3991 struct osd_inode_id id;
3993 struct inode *inode;
3998 spin_lock(&osd->od_osfs_lock);
3999 list_for_each_entry_safe(oor, tmp, &osd->od_orphan_list, oor_list) {
4000 if (oor->oor_env == env)
4001 list_move(&oor->oor_list, &list);
4003 spin_unlock(&osd->od_osfs_lock);
4005 list_for_each_entry_safe(oor, tmp, &list, oor_list) {
4009 list_del(&oor->oor_list);
4012 osd_id_gen(&id, ino, OSD_OII_NOGEN);
4013 inode = osd_iget_fid(info, osd, &id, &fid);
4017 if (!osd_remote_fid(env, osd, &fid)) {
4022 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC, 1);
4024 mark_inode_dirty(inode);
4025 ldiskfs_journal_stop(jh);
4033 * OSD layer object create function for OST objects (b=11826).
4035 * The FID is inserted into inode xattr here.
4037 * \retval 0, on success
4038 * \retval -ve, on error
4040 static int osd_create(const struct lu_env *env, struct dt_object *dt,
4041 struct lu_attr *attr, struct dt_allocation_hint *hint,
4042 struct dt_object_format *dof, struct thandle *th)
4044 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
4045 struct osd_object *obj = osd_dt_obj(dt);
4046 struct osd_thread_info *info = osd_oti_get(env);
4047 int result, on_ost = 0;
4051 if (dt_object_exists(dt))
4054 LINVRNT(osd_invariant(obj));
4055 LASSERT(!dt_object_remote(dt));
4056 LASSERT(osd_is_write_locked(env, obj));
4057 LASSERT(th != NULL);
4059 if (unlikely(fid_is_acct(fid)))
4061 * Quota files can't be created from the kernel any more,
4062 * 'tune2fs -O quota' will take care of creating them
4066 result = __osd_create(info, obj, attr, hint, dof, th);
4068 if (fid_is_idif(fid) &&
4069 !osd_dev(dt->do_lu.lo_dev)->od_index_in_idif) {
4070 struct lu_fid *tfid = &info->oti_fid;
4071 struct ost_id *oi = &info->oti_ostid;
4073 fid_to_ostid(fid, oi);
4074 ostid_to_fid(tfid, oi, 0);
4076 result = osd_ea_fid_set(info, obj->oo_inode, tfid,
4077 LMAC_FID_ON_OST, 0);
4079 on_ost = fid_is_on_ost(info, osd_obj2dev(obj),
4081 result = osd_ea_fid_set(info, obj->oo_inode, fid,
4082 on_ost ? LMAC_FID_ON_OST : 0,
4085 if (obj->oo_dt.do_body_ops == &osd_body_ops_new)
4086 obj->oo_dt.do_body_ops = &osd_body_ops;
4089 if (!result && !CFS_FAIL_CHECK(OBD_FAIL_OSD_NO_OI_ENTRY))
4090 result = __osd_oi_insert(env, obj, fid, th);
4093 * a small optimization - dt_insert() isn't usually applied
4094 * to OST objects, so we don't need to cache OI mapping for
4097 if (result == 0 && on_ost == 0) {
4098 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4100 result = osd_idc_find_and_init(env, osd, obj);
4101 LASSERT(result == 0);
4104 LASSERT(ergo(result == 0,
4105 dt_object_exists(dt) && !dt_object_remote(dt)));
4106 LINVRNT(osd_invariant(obj));
4110 static int osd_declare_ref_add(const struct lu_env *env, struct dt_object *dt,
4111 struct thandle *handle)
4113 struct osd_thandle *oh;
4115 /* it's possible that object doesn't exist yet */
4116 LASSERT(handle != NULL);
4118 oh = container_of(handle, struct osd_thandle, ot_super);
4119 LASSERT(oh->ot_handle == NULL);
4121 osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
4122 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
4124 osd_idc_find_and_init(env, osd_dev(dt->do_lu.lo_dev), osd_dt_obj(dt));
4130 * Concurrency: @dt is write locked.
4132 static int osd_ref_add(const struct lu_env *env, struct dt_object *dt,
4135 struct osd_object *obj = osd_dt_obj(dt);
4136 struct inode *inode = obj->oo_inode;
4137 struct osd_thandle *oh;
4140 if (!dt_object_exists(dt) || obj->oo_destroyed)
4143 LINVRNT(osd_invariant(obj));
4144 LASSERT(!dt_object_remote(dt));
4145 LASSERT(osd_is_write_locked(env, obj));
4146 LASSERT(th != NULL);
4148 oh = container_of(th, struct osd_thandle, ot_super);
4149 LASSERT(oh->ot_handle != NULL);
4151 osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
4153 CDEBUG(D_INODE, DFID" increase nlink %d\n",
4154 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
4156 * The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
4157 * (65000) subdirectories by storing "1" in i_nlink if the link count
4158 * would otherwise overflow. Directory tranversal tools understand
4159 * that (st_nlink == 1) indicates that the filesystem dose not track
4160 * hard links count on the directory, and will not abort subdirectory
4161 * scanning early once (st_nlink - 2) subdirs have been found.
4163 * This also has to properly handle the case of inodes with nlink == 0
4164 * in case they are being linked into the PENDING directory
4166 spin_lock(&obj->oo_guard);
4167 if (unlikely(inode->i_nlink == 0))
4168 /* inc_nlink from 0 may cause WARN_ON */
4169 set_nlink(inode, 1);
4171 ldiskfs_inc_count(oh->ot_handle, inode);
4172 if (!S_ISDIR(inode->i_mode))
4173 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
4175 spin_unlock(&obj->oo_guard);
4177 osd_dirty_inode(inode, I_DIRTY_DATASYNC);
4178 LINVRNT(osd_invariant(obj));
4180 osd_trans_exec_check(env, th, OSD_OT_REF_ADD);
4185 static int osd_declare_ref_del(const struct lu_env *env, struct dt_object *dt,
4186 struct thandle *handle)
4188 struct osd_thandle *oh;
4190 if (!dt_object_exists(dt))
4193 LASSERT(!dt_object_remote(dt));
4194 LASSERT(handle != NULL);
4196 oh = container_of(handle, struct osd_thandle, ot_super);
4197 LASSERT(oh->ot_handle == NULL);
4199 osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
4200 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
4206 * Concurrency: @dt is write locked.
4208 static int osd_ref_del(const struct lu_env *env, struct dt_object *dt,
4211 struct osd_object *obj = osd_dt_obj(dt);
4212 struct inode *inode = obj->oo_inode;
4213 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4214 struct osd_thandle *oh;
4216 if (!dt_object_exists(dt))
4219 LINVRNT(osd_invariant(obj));
4220 LASSERT(!dt_object_remote(dt));
4221 LASSERT(osd_is_write_locked(env, obj));
4222 LASSERT(th != NULL);
4224 oh = container_of(th, struct osd_thandle, ot_super);
4225 LASSERT(oh->ot_handle != NULL);
4227 osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
4229 spin_lock(&obj->oo_guard);
4231 * That can be result of upgrade from old Lustre version and
4232 * applied only to local files. Just skip this ref_del call.
4233 * ext4_unlink() only treats this as a warning, don't LASSERT here.
4235 if (inode->i_nlink == 0) {
4236 CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
4237 D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
4238 ", maybe an upgraded file? (LU-3915)\n",
4239 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
4240 spin_unlock(&obj->oo_guard);
4244 CDEBUG(D_INODE, DFID" decrease nlink %d\n",
4245 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
4247 ldiskfs_dec_count(oh->ot_handle, inode);
4248 spin_unlock(&obj->oo_guard);
4250 osd_dirty_inode(inode, I_DIRTY_DATASYNC);
4251 LINVRNT(osd_invariant(obj));
4253 osd_trans_exec_check(env, th, OSD_OT_REF_DEL);
4259 * Concurrency: @dt is read locked.
4261 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
4262 struct lu_buf *buf, const char *name)
4264 struct osd_object *obj = osd_dt_obj(dt);
4265 struct inode *inode = obj->oo_inode;
4266 struct osd_thread_info *info = osd_oti_get(env);
4267 struct dentry *dentry = &info->oti_obj_dentry;
4268 bool cache_xattr = false;
4273 /* version get is not real XATTR but uses xattr API */
4274 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4275 dt_obj_version_t *ver = buf->lb_buf;
4278 * for version we are just using xattr API but change inode
4281 if (buf->lb_len == 0)
4282 return sizeof(dt_obj_version_t);
4284 if (buf->lb_len < sizeof(dt_obj_version_t))
4287 CDEBUG(D_INODE, "Get version %#llx for inode %lu\n",
4288 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
4290 *ver = LDISKFS_I(inode)->i_fs_version;
4292 return sizeof(dt_obj_version_t);
4295 if (!dt_object_exists(dt))
4298 LASSERT(!dt_object_remote(dt));
4299 LASSERT(inode->i_op != NULL);
4300 #ifdef HAVE_IOP_XATTR
4301 LASSERT(inode->i_op->getxattr != NULL);
4304 if (strcmp(name, XATTR_NAME_LOV) == 0 ||
4305 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0)
4309 rc = osd_oxc_get(obj, name, buf);
4314 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
4315 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4316 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4317 struct filter_fid *ff;
4318 struct ost_layout *ol;
4320 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4324 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
4327 if (buf->lb_len == 0 || !buf->lb_buf)
4330 if (buf->lb_len < rc)
4334 ol = &ff->ff_layout;
4335 ol->ol_stripe_count = cpu_to_le32(loa->loa_parent_fid.f_ver >>
4336 PFID_STRIPE_IDX_BITS);
4337 ol->ol_stripe_size = cpu_to_le32(loa->loa_stripe_size);
4338 loa->loa_parent_fid.f_ver &= PFID_STRIPE_COUNT_MASK;
4339 fid_cpu_to_le(&ff->ff_parent, &loa->loa_parent_fid);
4340 if (lma->lma_compat & LMAC_COMP_INFO) {
4341 ol->ol_comp_start = cpu_to_le64(loa->loa_comp_start);
4342 ol->ol_comp_end = cpu_to_le64(loa->loa_comp_end);
4343 ol->ol_comp_id = cpu_to_le32(loa->loa_comp_id);
4345 ol->ol_comp_start = 0;
4346 ol->ol_comp_end = 0;
4350 rc = __osd_xattr_get(inode, dentry, name,
4351 buf->lb_buf, buf->lb_len);
4355 if (rc == -ENOENT || rc == -ENODATA)
4356 osd_oxc_add(obj, name, NULL, 0);
4357 else if (rc > 0 && buf->lb_buf != NULL)
4358 osd_oxc_add(obj, name, buf->lb_buf, rc);
4364 static int osd_declare_xattr_set(const struct lu_env *env,
4365 struct dt_object *dt,
4366 const struct lu_buf *buf, const char *name,
4367 int fl, struct thandle *handle)
4369 struct osd_thandle *oh;
4371 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4373 LASSERT(handle != NULL);
4375 oh = container_of(handle, struct osd_thandle, ot_super);
4376 LASSERT(oh->ot_handle == NULL);
4378 if (strcmp(name, XATTR_NAME_LMA) == 0) {
4380 * For non-upgrading case, the LMA is set first and
4381 * usually fit inode. But for upgrade case, the LMA
4382 * may be in another separated EA block.
4384 if (dt_object_exists(dt)) {
4385 if (fl == LU_XATTR_REPLACE)
4390 } else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4392 } else if (strcmp(name, XATTR_NAME_FID) == 0) {
4393 /* We may need to delete the old PFID EA. */
4394 credits = LDISKFS_MAXQUOTAS_DEL_BLOCKS(sb);
4395 if (fl == LU_XATTR_REPLACE)
4401 * If some name entry resides on remote MDT, then will create
4402 * agent entry under remote parent. On the other hand, if the
4403 * remote entry will be removed, then related agent entry may
4404 * need to be removed from the remote parent. So there may be
4405 * kinds of cases, let's declare enough credits. The credits
4406 * for create agent entry is enough for remove case.
4408 if (strcmp(name, XATTR_NAME_LINK) == 0) {
4409 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
4410 if (dt_object_exists(dt))
4411 credits += 1; /* For updating LMA */
4415 credits += osd_dto_credits_noquota[DTO_XATTR_SET];
4420 if (buf->lb_buf == NULL && dt_object_exists(dt)) {
4422 * learn xattr size from osd_xattr_get if
4423 * attribute has not been read yet
4425 buflen = __osd_xattr_get(
4426 osd_dt_obj(dt)->oo_inode,
4427 &osd_oti_get(env)->oti_obj_dentry,
4432 buflen = buf->lb_len;
4435 if (buflen > sb->s_blocksize) {
4436 credits += osd_calc_bkmap_credits(
4438 (buflen + sb->s_blocksize - 1) >>
4439 sb->s_blocksize_bits);
4443 * xattr set may involve inode quota change, reserve credits for
4444 * dquot_initialize()
4446 credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4449 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
4454 static int osd_xattr_set_pfid(const struct lu_env *env, struct osd_object *obj,
4455 const struct lu_buf *buf, int fl,
4456 struct thandle *handle)
4458 struct osd_thread_info *info = osd_oti_get(env);
4459 struct dentry *dentry = &info->oti_obj_dentry;
4460 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4461 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4462 struct inode *inode = obj->oo_inode;
4463 struct filter_fid *ff = buf->lb_buf;
4464 struct ost_layout *ol = &ff->ff_layout;
4465 int flags = XATTR_REPLACE;
4470 if (buf->lb_len != sizeof(*ff) && buf->lb_len != sizeof(struct lu_fid))
4473 rc = osd_get_lma(info, inode, dentry, loa);
4474 if (rc == -ENODATA) {
4475 /* Usually for upgarding from old device */
4476 lustre_loa_init(loa, lu_object_fid(&obj->oo_dt.do_lu),
4477 LMAC_FID_ON_OST, 0);
4478 flags = XATTR_CREATE;
4483 if (!rc && lma->lma_compat & LMAC_STRIPE_INFO) {
4484 if ((fl & LU_XATTR_CREATE) && !(fl & LU_XATTR_REPLACE))
4487 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256) {
4488 /* Separate PFID EA from LMA */
4489 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4490 lustre_lma_swab(lma);
4491 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4492 sizeof(*lma), XATTR_REPLACE);
4494 obj->oo_pfid_in_lma = 0;
4495 rc = LU_XATTR_CREATE;
4501 if (LDISKFS_INODE_SIZE(inode->i_sb) > 256)
4505 * Old client does not send stripe information,
4506 * then store the PFID EA on disk separatedly.
4508 if (unlikely(buf->lb_len == sizeof(struct lu_fid) ||
4509 ol->ol_stripe_size == 0))
4512 /* Remove old PFID EA entry firstly. */
4513 dquot_initialize(inode);
4514 rc = ll_vfs_removexattr(dentry, inode, XATTR_NAME_FID);
4515 if (rc == -ENODATA) {
4516 if ((fl & LU_XATTR_REPLACE) && !(fl & LU_XATTR_CREATE))
4523 fid_le_to_cpu(&loa->loa_parent_fid, &ff->ff_parent);
4524 if (likely(ol->ol_stripe_size != 0)) {
4525 loa->loa_parent_fid.f_ver |= le32_to_cpu(ol->ol_stripe_count) <<
4526 PFID_STRIPE_IDX_BITS;
4527 loa->loa_stripe_size = le32_to_cpu(ol->ol_stripe_size);
4528 lma->lma_compat |= LMAC_STRIPE_INFO;
4529 if (ol->ol_comp_id != 0) {
4530 loa->loa_comp_id = le32_to_cpu(ol->ol_comp_id);
4531 loa->loa_comp_start = le64_to_cpu(ol->ol_comp_start);
4532 loa->loa_comp_end = le64_to_cpu(ol->ol_comp_end);
4533 lma->lma_compat |= LMAC_COMP_INFO;
4537 lustre_loa_swab(loa, false);
4539 /* Store the PFID EA inside LMA. */
4540 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, loa, sizeof(*loa),
4543 obj->oo_pfid_in_lma = 1;
4549 * In DNE environment, the object (in spite of regular file or directory)
4550 * and its name entry may reside on different MDTs. Under such case, we will
4551 * create an agent entry on the MDT where the object resides. The agent entry
4552 * references the object locally, that makes the object to be visible to the
4553 * userspace when mounted as 'ldiskfs' directly. Then the userspace tools,
4554 * such as 'tar' can handle the object properly.
4556 * We handle the agent entry during set linkEA that is the common interface
4557 * for both regular file and directroy, can handle kinds of cases, such as
4558 * create/link/unlink/rename, and so on.
4560 * NOTE: we can NOT do that when ea_{insert,delete} that is only for directory.
4562 * XXX: There are two known issues:
4563 * 1. For one object, we will create at most one agent entry even if there
4564 * may be more than one cross-MDTs hard links on the object. So the local
4565 * e2fsck may claim that the object's nlink is larger than the name entries
4566 * that reference such inode. And in further, the e2fsck will fix the nlink
4567 * attribute to match the local references. Then it will cause the object's
4568 * nlink attribute to be inconsistent with the global references. it is bad
4569 * but not fatal. The ref_del() can handle the zero-referenced case. On the
4570 * other hand, the global namespace LFSCK can repair the object's attribute
4571 * according to the linkEA.
4572 * 2. There may be too many hard links on the object as to its linkEA overflow,
4573 * then the linkEA entry for cross-MDTs reference may be discarded. If such
4574 * case happened, then at this point, we do not know whether there are some
4575 * cross-MDTs reference. But there are local references, it guarantees that
4576 * object is visible to userspace when mounted as 'ldiskfs'. That is enough.
4578 static int osd_xattr_handle_linkea(const struct lu_env *env,
4579 struct osd_device *osd,
4580 struct osd_object *obj,
4581 const struct lu_buf *buf,
4582 struct thandle *handle)
4584 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
4585 struct lu_fid *tfid = &osd_oti_get(env)->oti_fid3;
4586 struct linkea_data ldata = { .ld_buf = (struct lu_buf *)buf };
4587 struct lu_name tmpname;
4588 struct osd_thandle *oh;
4590 bool remote = false;
4594 oh = container_of(handle, struct osd_thandle, ot_super);
4595 LASSERT(oh->ot_handle != NULL);
4597 rc = linkea_init_with_rec(&ldata);
4599 linkea_first_entry(&ldata);
4600 while (ldata.ld_lee != NULL && !remote) {
4601 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen,
4603 if (osd_remote_fid(env, osd, tfid) > 0)
4606 linkea_next_entry(&ldata);
4608 } else if (rc == -ENODATA) {
4614 if (lu_object_has_agent_entry(&obj->oo_dt.do_lu) && !remote) {
4615 rc = osd_delete_from_remote_parent(env, osd, obj, oh, false);
4617 CERROR("%s: failed to remove agent entry for "DFID
4618 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4619 } else if (!lu_object_has_agent_entry(&obj->oo_dt.do_lu) && remote) {
4620 rc = osd_add_to_remote_parent(env, osd, obj, oh);
4622 CERROR("%s: failed to create agent entry for "DFID
4623 ": rc = %d\n", osd_name(osd), PFID(fid), rc);
4630 * Concurrency: @dt is write locked.
4632 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
4633 const struct lu_buf *buf, const char *name, int fl,
4634 struct thandle *handle)
4636 struct osd_object *obj = osd_dt_obj(dt);
4637 struct osd_device *osd = osd_obj2dev(obj);
4638 struct inode *inode = obj->oo_inode;
4639 struct osd_thread_info *info = osd_oti_get(env);
4649 /* version set is not real XATTR */
4650 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
4651 dt_obj_version_t *version = buf->lb_buf;
4654 * for version we are just using xattr API but change inode
4657 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
4659 CDEBUG(D_INODE, "Set version %#llx (old %#llx) for inode %lu\n",
4660 *version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
4662 LDISKFS_I(inode)->i_fs_version = *version;
4664 * Version is set after all inode operations are finished,
4665 * so we should mark it dirty here
4667 osd_dirty_inode(inode, I_DIRTY_DATASYNC);
4672 CDEBUG(D_INODE, DFID" set xattr '%s' with size %zu\n",
4673 PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
4676 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4679 * For the OST device with 256 bytes inode size by default,
4680 * the PFID EA will be stored together with LMA EA to avoid
4681 * performance trouble. Otherwise the PFID EA can be stored
4682 * independently. LU-8998
4684 if (strcmp(name, XATTR_NAME_FID) == 0 && osd->od_is_ost &&
4685 (LDISKFS_INODE_SIZE(inode->i_sb) <= 256 || obj->oo_pfid_in_lma)) {
4686 LASSERT(buf->lb_buf);
4688 fl = osd_xattr_set_pfid(env, obj, buf, fl, handle);
4691 } else if (strcmp(name, XATTR_NAME_LMV) == 0) {
4692 struct lustre_ost_attrs *loa = &info->oti_ost_attrs;
4693 struct lustre_mdt_attrs *lma = &loa->loa_lma;
4695 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, loa);
4699 lma->lma_incompat |= LMAI_STRIPED;
4700 lustre_lma_swab(lma);
4701 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4702 sizeof(*lma), XATTR_REPLACE);
4705 } else if (strcmp(name, XATTR_NAME_LINK) == 0) {
4706 LASSERT(!osd->od_is_ost);
4708 rc = osd_xattr_handle_linkea(env, osd, obj, buf, handle);
4713 if (fl & LU_XATTR_REPLACE)
4714 fs_flags |= XATTR_REPLACE;
4716 if (fl & LU_XATTR_CREATE)
4717 fs_flags |= XATTR_CREATE;
4719 rc = __osd_xattr_set(info, inode, name, buf->lb_buf, len, fs_flags);
4720 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4723 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4724 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4725 osd_oxc_add(obj, name, buf->lb_buf, buf->lb_len);
4731 * Concurrency: @dt is read locked.
4733 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
4734 const struct lu_buf *buf)
4736 struct osd_object *obj = osd_dt_obj(dt);
4737 struct inode *inode = obj->oo_inode;
4738 struct osd_thread_info *info = osd_oti_get(env);
4739 struct dentry *dentry = &info->oti_obj_dentry;
4741 if (!dt_object_exists(dt))
4744 LASSERT(!dt_object_remote(dt));
4745 LASSERT(inode->i_op != NULL);
4746 LASSERT(inode->i_op->listxattr != NULL);
4748 dentry->d_inode = inode;
4749 dentry->d_sb = inode->i_sb;
4750 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
4753 static int osd_declare_xattr_del(const struct lu_env *env,
4754 struct dt_object *dt, const char *name,
4755 struct thandle *handle)
4757 struct osd_thandle *oh;
4758 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
4760 LASSERT(!dt_object_remote(dt));
4761 LASSERT(handle != NULL);
4763 oh = container_of(handle, struct osd_thandle, ot_super);
4764 LASSERT(oh->ot_handle == NULL);
4766 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
4767 osd_dto_credits_noquota[DTO_XATTR_SET]);
4769 * xattr del may involve inode quota change, reserve credits for
4770 * dquot_initialize()
4772 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
4778 * Concurrency: @dt is write locked.
4780 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
4781 const char *name, struct thandle *handle)
4783 struct osd_object *obj = osd_dt_obj(dt);
4784 struct inode *inode = obj->oo_inode;
4785 struct osd_thread_info *info = osd_oti_get(env);
4786 struct dentry *dentry = &info->oti_obj_dentry;
4789 if (!dt_object_exists(dt))
4792 LASSERT(!dt_object_remote(dt));
4793 LASSERT(inode->i_op != NULL);
4794 LASSERT(handle != NULL);
4795 #ifdef HAVE_IOP_XATTR
4796 LASSERT(inode->i_op->removexattr != NULL);
4799 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
4801 if (strcmp(name, XATTR_NAME_FID) == 0 && obj->oo_pfid_in_lma) {
4802 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
4804 rc = osd_get_lma(info, inode, &info->oti_obj_dentry,
4805 &info->oti_ost_attrs);
4807 LASSERT(lma->lma_compat & LMAC_STRIPE_INFO);
4809 lma->lma_compat &= ~(LMAC_STRIPE_INFO | LMAC_COMP_INFO);
4810 lustre_lma_swab(lma);
4811 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
4812 sizeof(*lma), XATTR_REPLACE);
4814 obj->oo_pfid_in_lma = 0;
4817 dquot_initialize(inode);
4818 dentry->d_inode = inode;
4819 dentry->d_sb = inode->i_sb;
4820 rc = ll_vfs_removexattr(dentry, inode, name);
4823 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
4826 (strcmp(name, XATTR_NAME_LOV) == 0 ||
4827 strcmp(name, XATTR_NAME_DEFAULT_LMV) == 0))
4828 osd_oxc_del(obj, name);
4833 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
4834 __u64 start, __u64 end)
4836 struct osd_object *obj = osd_dt_obj(dt);
4837 struct inode *inode = obj->oo_inode;
4838 struct osd_thread_info *info = osd_oti_get(env);
4839 struct dentry *dentry = &info->oti_obj_dentry;
4840 struct file *file = &info->oti_file;
4845 dentry->d_inode = inode;
4846 dentry->d_sb = inode->i_sb;
4847 file->f_path.dentry = dentry;
4848 file->f_mapping = inode->i_mapping;
4849 file->f_op = inode->i_fop;
4850 file->f_inode = inode;
4852 rc = vfs_fsync_range(file, start, end, 0);
4857 static int osd_invalidate(const struct lu_env *env, struct dt_object *dt)
4866 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
4867 const struct dt_index_features *feat)
4869 struct iam_descr *descr;
4871 if (osd_object_is_root(o))
4872 return feat == &dt_directory_features;
4874 LASSERT(o->oo_dir != NULL);
4876 descr = o->oo_dir->od_container.ic_descr;
4877 if (feat == &dt_directory_features) {
4878 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
4883 return feat->dif_keysize_min <= descr->id_key_size &&
4884 descr->id_key_size <= feat->dif_keysize_max &&
4885 feat->dif_recsize_min <= descr->id_rec_size &&
4886 descr->id_rec_size <= feat->dif_recsize_max &&
4887 !(feat->dif_flags & (DT_IND_VARKEY |
4888 DT_IND_VARREC | DT_IND_NONUNQ)) &&
4889 ergo(feat->dif_flags & DT_IND_UPDATE,
4890 1 /* XXX check that object (and fs) is writable */);
4894 static int osd_iam_container_init(const struct lu_env *env,
4895 struct osd_object *obj,
4896 struct osd_directory *dir)
4898 struct iam_container *bag = &dir->od_container;
4901 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
4905 result = iam_container_setup(bag);
4907 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
4909 iam_container_fini(bag);
4916 * Concurrency: no external locking is necessary.
4918 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
4919 const struct dt_index_features *feat)
4923 struct osd_object *obj = osd_dt_obj(dt);
4925 LINVRNT(osd_invariant(obj));
4927 if (osd_object_is_root(obj)) {
4928 dt->do_index_ops = &osd_index_ea_ops;
4930 } else if (feat == &dt_directory_features) {
4931 dt->do_index_ops = &osd_index_ea_ops;
4932 if (obj->oo_inode == NULL || S_ISDIR(obj->oo_inode->i_mode))
4937 } else if (unlikely(feat == &dt_otable_features)) {
4938 dt->do_index_ops = &osd_otable_ops;
4940 } else if (unlikely(feat == &dt_acct_features)) {
4941 dt->do_index_ops = &osd_acct_index_ops;
4944 } else if (!osd_has_index(obj)) {
4945 struct osd_directory *dir;
4946 struct osd_device *osd = osd_obj2dev(obj);
4947 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
4952 spin_lock(&obj->oo_guard);
4953 if (obj->oo_dir == NULL)
4957 * Concurrent thread allocated container data.
4960 spin_unlock(&obj->oo_guard);
4962 * Now, that we have container data, serialize its
4965 down_write(&obj->oo_ext_idx_sem);
4967 * recheck under lock.
4970 if (osd_has_index(obj)) {
4975 result = osd_iam_container_init(env, obj, obj->oo_dir);
4976 if (result || feat == &dt_lfsck_namespace_features ||
4977 feat == &dt_lfsck_layout_orphan_features ||
4978 feat == &dt_lfsck_layout_dangling_features)
4981 result = osd_index_register(osd, fid,
4982 feat->dif_keysize_max,
4983 feat->dif_recsize_max);
4985 CWARN("%s: failed to register index "
4987 osd_name(osd), PFID(fid), result);
4988 else if (result > 0)
4991 CDEBUG(D_LFSCK, "%s: index object "DFID
4992 " (%d/%d) registered\n",
4993 osd_name(osd), PFID(fid),
4994 (int)feat->dif_keysize_max,
4995 (int)feat->dif_recsize_max);
4998 up_write(&obj->oo_ext_idx_sem);
5006 if (result == 0 && skip_iam == 0) {
5007 if (!osd_iam_index_probe(env, obj, feat))
5010 LINVRNT(osd_invariant(obj));
5015 static int osd_otable_it_attr_get(const struct lu_env *env,
5016 struct dt_object *dt,
5017 struct lu_attr *attr)
5023 static const struct dt_object_operations osd_obj_ops = {
5024 .do_read_lock = osd_read_lock,
5025 .do_write_lock = osd_write_lock,
5026 .do_read_unlock = osd_read_unlock,
5027 .do_write_unlock = osd_write_unlock,
5028 .do_write_locked = osd_write_locked,
5029 .do_attr_get = osd_attr_get,
5030 .do_declare_attr_set = osd_declare_attr_set,
5031 .do_attr_set = osd_attr_set,
5032 .do_ah_init = osd_ah_init,
5033 .do_declare_create = osd_declare_create,
5034 .do_create = osd_create,
5035 .do_declare_destroy = osd_declare_destroy,
5036 .do_destroy = osd_destroy,
5037 .do_index_try = osd_index_try,
5038 .do_declare_ref_add = osd_declare_ref_add,
5039 .do_ref_add = osd_ref_add,
5040 .do_declare_ref_del = osd_declare_ref_del,
5041 .do_ref_del = osd_ref_del,
5042 .do_xattr_get = osd_xattr_get,
5043 .do_declare_xattr_set = osd_declare_xattr_set,
5044 .do_xattr_set = osd_xattr_set,
5045 .do_declare_xattr_del = osd_declare_xattr_del,
5046 .do_xattr_del = osd_xattr_del,
5047 .do_xattr_list = osd_xattr_list,
5048 .do_object_sync = osd_object_sync,
5049 .do_invalidate = osd_invalidate,
5052 static const struct dt_object_operations osd_obj_otable_it_ops = {
5053 .do_attr_get = osd_otable_it_attr_get,
5054 .do_index_try = osd_index_try,
5057 static int osd_index_declare_iam_delete(const struct lu_env *env,
5058 struct dt_object *dt,
5059 const struct dt_key *key,
5060 struct thandle *handle)
5062 struct osd_thandle *oh;
5064 oh = container_of(handle, struct osd_thandle, ot_super);
5065 LASSERT(oh->ot_handle == NULL);
5067 /* Recycle may cause additional three blocks to be changed. */
5068 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
5069 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
5075 * delete a (key, value) pair from index \a dt specified by \a key
5077 * \param dt osd index object
5078 * \param key key for index
5079 * \param rec record reference
5080 * \param handle transaction handler
5083 * \retval -ve failure
5085 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
5086 const struct dt_key *key,
5087 struct thandle *handle)
5089 struct osd_thread_info *oti = osd_oti_get(env);
5090 struct osd_object *obj = osd_dt_obj(dt);
5091 struct osd_thandle *oh;
5092 struct iam_path_descr *ipd;
5093 struct iam_container *bag = &obj->oo_dir->od_container;
5098 if (!dt_object_exists(dt))
5101 LINVRNT(osd_invariant(obj));
5102 LASSERT(!dt_object_remote(dt));
5103 LASSERT(bag->ic_object == obj->oo_inode);
5104 LASSERT(handle != NULL);
5106 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
5108 ipd = osd_idx_ipd_get(env, bag);
5109 if (unlikely(ipd == NULL))
5112 oh = container_of(handle, struct osd_thandle, ot_super);
5113 LASSERT(oh->ot_handle != NULL);
5114 LASSERT(oh->ot_handle->h_transaction != NULL);
5116 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5117 /* swab quota uid/gid provided by caller */
5118 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5119 key = (const struct dt_key *)&oti->oti_quota_id;
5122 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
5123 osd_ipd_put(env, bag, ipd);
5124 LINVRNT(osd_invariant(obj));
5125 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
5129 static int osd_index_declare_ea_delete(const struct lu_env *env,
5130 struct dt_object *dt,
5131 const struct dt_key *key,
5132 struct thandle *handle)
5134 struct osd_thandle *oh;
5135 struct inode *inode;
5140 LASSERT(!dt_object_remote(dt));
5141 LASSERT(handle != NULL);
5143 oh = container_of(handle, struct osd_thandle, ot_super);
5144 LASSERT(oh->ot_handle == NULL);
5146 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE];
5147 osd_trans_declare_op(env, oh, OSD_OT_DELETE, credits);
5149 inode = osd_dt_obj(dt)->oo_inode;
5153 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
5154 i_projid_read(inode), 0, oh, osd_dt_obj(dt),
5159 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
5162 struct osd_fid_pack *rec;
5165 if (de->file_type & LDISKFS_DIRENT_LUFID) {
5166 rec = (struct osd_fid_pack *)(de->name + de->name_len + 1);
5167 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
5168 if (rc == 0 && unlikely(!fid_is_sane((struct lu_fid *)fid)))
5174 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
5175 const struct lu_fid *fid)
5177 struct seq_server_site *ss = osd_seq_site(osd);
5181 /* FID seqs not in FLDB, must be local seq */
5182 if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
5186 * If FLD is not being initialized yet, it only happens during the
5187 * initialization, likely during mgs initialization, and we assume
5188 * this is local FID.
5190 if (ss == NULL || ss->ss_server_fld == NULL)
5193 /* Only check the local FLDB here */
5194 if (osd_seq_exists(env, osd, fid_seq(fid)))
5200 static void osd_take_care_of_agent(const struct lu_env *env,
5201 struct osd_device *osd,
5202 struct osd_thandle *oh,
5203 struct ldiskfs_dir_entry_2 *de)
5205 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
5206 struct osd_idmap_cache *idc;
5207 int rc, schedule = 0;
5209 LASSERT(de != NULL);
5211 rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
5212 if (likely(rc == 0)) {
5213 idc = osd_idc_find_or_init(env, osd, fid);
5214 if (IS_ERR(idc) || idc->oic_remote)
5216 } else if (rc == -ENODATA) {
5218 * can't get FID, postpone to the end of the
5219 * transaction when iget() is safe
5223 CERROR("%s: can't get FID: rc = %d\n", osd_name(osd), rc);
5226 osd_schedule_agent_inode_removal(env, oh,
5227 le32_to_cpu(de->inode));
5231 * Index delete function for interoperability mode (b11826).
5232 * It will remove the directory entry added by osd_index_ea_insert().
5233 * This entry is needed to maintain name->fid mapping.
5235 * \param key, key i.e. file entry to be deleted
5237 * \retval 0, on success
5238 * \retval -ve, on error
5240 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
5241 const struct dt_key *key, struct thandle *handle)
5243 struct osd_object *obj = osd_dt_obj(dt);
5244 struct inode *dir = obj->oo_inode;
5245 struct dentry *dentry;
5246 struct osd_thandle *oh;
5247 struct ldiskfs_dir_entry_2 *de = NULL;
5248 struct buffer_head *bh;
5249 struct htree_lock *hlock = NULL;
5250 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
5255 if (!dt_object_exists(dt))
5258 LINVRNT(osd_invariant(obj));
5259 LASSERT(!dt_object_remote(dt));
5260 LASSERT(handle != NULL);
5262 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
5264 oh = container_of(handle, struct osd_thandle, ot_super);
5265 LASSERT(oh->ot_handle != NULL);
5266 LASSERT(oh->ot_handle->h_transaction != NULL);
5268 dquot_initialize(dir);
5269 dentry = osd_child_dentry_get(env, obj,
5270 (char *)key, strlen((char *)key));
5272 if (obj->oo_hl_head != NULL) {
5273 hlock = osd_oti_get(env)->oti_hlock;
5274 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5275 dir, LDISKFS_HLOCK_DEL);
5277 down_write(&obj->oo_ext_idx_sem);
5280 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5283 * If this is not the ".." entry, it might be a remote DNE
5284 * entry and we need to check if the FID is for a remote
5285 * MDT. If the FID is not in the directory entry (e.g.
5286 * upgraded 1.8 filesystem without dirdata enabled) then
5287 * we need to get the FID from the LMA. For a remote directory
5288 * there HAS to be an LMA, it cannot be an IGIF inode in this
5291 * Delete the entry before the agent inode in order to
5292 * simplify error handling. At worst an error after deleting
5293 * the entry first might leak the agent inode afterward. The
5294 * reverse would need filesystem abort in case of error deleting
5295 * the entry after the agent had been removed, or leave a
5296 * dangling entry pointing at a random inode.
5298 if (strcmp((char *)key, dotdot) != 0)
5299 osd_take_care_of_agent(env, osd, oh, de);
5300 rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
5306 if (!rc && fid_is_namespace_visible(lu_object_fid(&dt->do_lu)) &&
5307 obj->oo_dirent_count != LU_DIRENT_COUNT_UNSET) {
5308 /* NB, dirent count may not be accurate, because it's counted
5311 if (obj->oo_dirent_count)
5312 obj->oo_dirent_count--;
5314 obj->oo_dirent_count = LU_DIRENT_COUNT_UNSET;
5317 ldiskfs_htree_unlock(hlock);
5319 up_write(&obj->oo_ext_idx_sem);
5322 LASSERT(osd_invariant(obj));
5323 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
5328 * Lookup index for \a key and copy record to \a rec.
5330 * \param dt osd index object
5331 * \param key key for index
5332 * \param rec record reference
5334 * \retval +ve success : exact mach
5335 * \retval 0 return record with key not greater than \a key
5336 * \retval -ve failure
5338 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
5339 struct dt_rec *rec, const struct dt_key *key)
5341 struct osd_object *obj = osd_dt_obj(dt);
5342 struct iam_path_descr *ipd;
5343 struct iam_container *bag = &obj->oo_dir->od_container;
5344 struct osd_thread_info *oti = osd_oti_get(env);
5345 struct iam_iterator *it = &oti->oti_idx_it;
5346 struct iam_rec *iam_rec;
5351 if (!dt_object_exists(dt))
5354 LASSERT(osd_invariant(obj));
5355 LASSERT(!dt_object_remote(dt));
5356 LASSERT(bag->ic_object == obj->oo_inode);
5358 ipd = osd_idx_ipd_get(env, bag);
5362 /* got ipd now we can start iterator. */
5363 iam_it_init(it, bag, 0, ipd);
5365 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5366 /* swab quota uid/gid provided by caller */
5367 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5368 key = (const struct dt_key *)&oti->oti_quota_id;
5371 rc = iam_it_get(it, (struct iam_key *)key);
5373 if (S_ISDIR(obj->oo_inode->i_mode))
5374 iam_rec = (struct iam_rec *)oti->oti_ldp;
5376 iam_rec = (struct iam_rec *)rec;
5378 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
5380 if (S_ISDIR(obj->oo_inode->i_mode))
5381 osd_fid_unpack((struct lu_fid *)rec,
5382 (struct osd_fid_pack *)iam_rec);
5383 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
5384 osd_quota_unpack(obj, rec);
5389 osd_ipd_put(env, bag, ipd);
5391 LINVRNT(osd_invariant(obj));
5396 static int osd_index_declare_iam_insert(const struct lu_env *env,
5397 struct dt_object *dt,
5398 const struct dt_rec *rec,
5399 const struct dt_key *key,
5400 struct thandle *handle)
5402 struct osd_thandle *oh;
5404 LASSERT(handle != NULL);
5406 oh = container_of(handle, struct osd_thandle, ot_super);
5407 LASSERT(oh->ot_handle == NULL);
5409 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
5410 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
5416 * Inserts (key, value) pair in \a dt index object.
5418 * \param dt osd index object
5419 * \param key key for index
5420 * \param rec record reference
5421 * \param th transaction handler
5424 * \retval -ve failure
5426 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
5427 const struct dt_rec *rec,
5428 const struct dt_key *key, struct thandle *th)
5430 struct osd_object *obj = osd_dt_obj(dt);
5431 struct iam_path_descr *ipd;
5432 struct osd_thandle *oh;
5433 struct iam_container *bag;
5434 struct osd_thread_info *oti = osd_oti_get(env);
5435 struct iam_rec *iam_rec;
5440 if (!dt_object_exists(dt))
5443 LINVRNT(osd_invariant(obj));
5444 LASSERT(!dt_object_remote(dt));
5446 bag = &obj->oo_dir->od_container;
5447 LASSERT(bag->ic_object == obj->oo_inode);
5448 LASSERT(th != NULL);
5450 osd_trans_exec_op(env, th, OSD_OT_INSERT);
5452 ipd = osd_idx_ipd_get(env, bag);
5453 if (unlikely(ipd == NULL))
5456 oh = container_of(th, struct osd_thandle, ot_super);
5457 LASSERT(oh->ot_handle != NULL);
5458 LASSERT(oh->ot_handle->h_transaction != NULL);
5459 if (S_ISDIR(obj->oo_inode->i_mode)) {
5460 iam_rec = (struct iam_rec *)oti->oti_ldp;
5461 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec,
5463 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
5464 /* pack quota uid/gid */
5465 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
5466 key = (const struct dt_key *)&oti->oti_quota_id;
5467 /* pack quota record */
5468 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
5469 iam_rec = (struct iam_rec *)rec;
5471 iam_rec = (struct iam_rec *)rec;
5474 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
5476 osd_ipd_put(env, bag, ipd);
5477 LINVRNT(osd_invariant(obj));
5478 osd_trans_exec_check(env, th, OSD_OT_INSERT);
5483 * Calls ldiskfs_add_entry() to add directory entry
5484 * into the directory. This is required for
5485 * interoperability mode (b11826)
5487 * \retval 0, on success
5488 * \retval -ve, on error
5490 static int __osd_ea_add_rec(struct osd_thread_info *info,
5491 struct osd_object *pobj, struct inode *cinode,
5492 const char *name, const struct lu_fid *fid,
5493 struct htree_lock *hlock, struct thandle *th)
5495 struct ldiskfs_dentry_param *ldp;
5496 struct dentry *child;
5497 struct osd_thandle *oth;
5500 oth = container_of(th, struct osd_thandle, ot_super);
5501 LASSERT(oth->ot_handle != NULL);
5502 LASSERT(oth->ot_handle->h_transaction != NULL);
5503 LASSERT(pobj->oo_inode);
5505 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
5506 if (unlikely(pobj->oo_inode ==
5507 osd_sb(osd_obj2dev(pobj))->s_root->d_inode))
5510 osd_get_ldiskfs_dirent_param(ldp, fid);
5511 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
5512 child->d_fsdata = (void *)ldp;
5513 dquot_initialize(pobj->oo_inode);
5514 rc = osd_ldiskfs_add_entry(info, osd_obj2dev(pobj), oth->ot_handle,
5515 child, cinode, hlock);
5516 if (rc == 0 && OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_TYPE)) {
5517 struct ldiskfs_dir_entry_2 *de;
5518 struct buffer_head *bh;
5521 bh = osd_ldiskfs_find_entry(pobj->oo_inode, &child->d_name, &de,
5524 rc1 = ldiskfs_journal_get_write_access(oth->ot_handle,
5527 if (S_ISDIR(cinode->i_mode))
5528 de->file_type = LDISKFS_DIRENT_LUFID |
5529 LDISKFS_FT_REG_FILE;
5531 de->file_type = LDISKFS_DIRENT_LUFID |
5533 ldiskfs_handle_dirty_metadata(oth->ot_handle,
5544 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
5545 * into the directory.Also sets flags into osd object to
5546 * indicate dot and dotdot are created. This is required for
5547 * interoperability mode (b11826)
5549 * \param dir directory for dot and dotdot fixup.
5550 * \param obj child object for linking
5552 * \retval 0, on success
5553 * \retval -ve, on error
5555 static int osd_add_dot_dotdot(struct osd_thread_info *info,
5556 struct osd_object *dir,
5557 struct inode *parent_dir, const char *name,
5558 const struct lu_fid *dot_fid,
5559 const struct lu_fid *dot_dot_fid,
5562 struct inode *inode = dir->oo_inode;
5563 struct osd_thandle *oth;
5566 oth = container_of(th, struct osd_thandle, ot_super);
5567 LASSERT(oth->ot_handle->h_transaction != NULL);
5568 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
5570 if (strcmp(name, dot) == 0) {
5571 if (dir->oo_compat_dot_created) {
5574 LASSERT(inode->i_ino == parent_dir->i_ino);
5575 dir->oo_compat_dot_created = 1;
5578 } else if (strcmp(name, dotdot) == 0) {
5579 if (!dir->oo_compat_dot_created)
5581 /* in case of rename, dotdot is already created */
5582 if (dir->oo_compat_dotdot_created) {
5583 return __osd_ea_add_rec(info, dir, parent_dir, name,
5584 dot_dot_fid, NULL, th);
5587 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_PARENT)) {
5588 struct lu_fid tfid = *dot_dot_fid;
5591 result = osd_add_dot_dotdot_internal(info,
5592 dir->oo_inode, parent_dir, dot_fid,
5595 result = osd_add_dot_dotdot_internal(info,
5596 dir->oo_inode, parent_dir, dot_fid,
5601 dir->oo_compat_dotdot_created = 1;
5609 * It will call the appropriate osd_add* function and return the
5610 * value, return by respective functions.
5612 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
5613 struct inode *cinode, const char *name,
5614 const struct lu_fid *fid, struct thandle *th)
5616 struct osd_thread_info *info = osd_oti_get(env);
5617 struct htree_lock *hlock;
5620 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
5622 if (name[0] == '.' && (name[1] == '\0' ||
5623 (name[1] == '.' && name[2] == '\0'))) {
5624 if (hlock != NULL) {
5625 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5628 down_write(&pobj->oo_ext_idx_sem);
5631 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
5632 lu_object_fid(&pobj->oo_dt.do_lu),
5635 if (hlock != NULL) {
5636 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
5637 pobj->oo_inode, LDISKFS_HLOCK_ADD);
5639 down_write(&pobj->oo_ext_idx_sem);
5642 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
5643 struct lu_fid *tfid = &info->oti_fid;
5647 rc = __osd_ea_add_rec(info, pobj, cinode, name,
5650 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
5654 if (!rc && fid_is_namespace_visible(lu_object_fid(&pobj->oo_dt.do_lu))
5655 && pobj->oo_dirent_count != LU_DIRENT_COUNT_UNSET)
5656 pobj->oo_dirent_count++;
5659 ldiskfs_htree_unlock(hlock);
5661 up_write(&pobj->oo_ext_idx_sem);
5667 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
5668 struct osd_idmap_cache *oic)
5670 struct lustre_scrub *scrub = &dev->od_scrub.os_scrub;
5671 struct lu_fid *fid = &oic->oic_fid;
5672 struct osd_inode_id *id = &oic->oic_lid;
5673 struct inode *inode = NULL;
5680 if (!fid_is_norm(fid) && !fid_is_igif(fid))
5683 if (scrub->os_running && scrub->os_pos_current > id->oii_ino)
5686 if (dev->od_auto_scrub_interval == AS_NEVER ||
5687 ktime_get_real_seconds() <
5688 scrub->os_file.sf_time_last_complete + dev->od_auto_scrub_interval)
5692 rc = osd_oi_lookup(oti, dev, fid, &oti->oti_id, 0);
5693 if (rc == -ENOENT) {
5694 __u32 gen = id->oii_gen;
5700 inode = osd_iget(oti, dev, id);
5701 /* The inode has been removed (by race maybe). */
5702 if (IS_ERR(inode)) {
5703 rc = PTR_ERR(inode);
5705 RETURN(rc == -ESTALE ? -ENOENT : rc);
5708 /* The OI mapping is lost. */
5709 if (gen != OSD_OII_NOGEN)
5713 * The inode may has been reused by others, we do not know,
5714 * leave it to be handled by subsequent osd_fid_lookup().
5717 } else if (rc || osd_id_eq(id, &oti->oti_id)) {
5724 if (scrub->os_running) {
5725 if (inode == NULL) {
5726 inode = osd_iget(oti, dev, id);
5727 /* The inode has been removed (by race maybe). */
5728 if (IS_ERR(inode)) {
5729 rc = PTR_ERR(inode);
5731 RETURN(rc == -ESTALE ? -ENOENT : rc);
5735 rc = osd_oii_insert(dev, oic, insert);
5737 * There is race condition between osd_oi_lookup and OI scrub.
5738 * The OI scrub finished just after osd_oi_lookup() failure.
5739 * Under such case, it is unnecessary to trigger OI scrub again,
5740 * but try to call osd_oi_lookup() again.
5742 if (unlikely(rc == -EAGAIN))
5745 if (!S_ISDIR(inode->i_mode))
5748 rc = osd_check_lmv(oti, dev, inode, oic);
5753 if (dev->od_auto_scrub_interval != AS_NEVER && ++once == 1) {
5754 rc = osd_scrub_start(oti->oti_env, dev, SS_AUTO_PARTIAL |
5755 SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT);
5756 CDEBUG(D_LFSCK | D_CONSOLE | D_WARNING,
5757 "%s: trigger partial OI scrub for RPC inconsistency "
5758 "checking FID "DFID": rc = %d\n",
5759 osd_dev2name(dev), PFID(fid), rc);
5760 if (rc == 0 || rc == -EALREADY)
5773 static int osd_fail_fid_lookup(struct osd_thread_info *oti,
5774 struct osd_device *dev,
5775 struct osd_idmap_cache *oic,
5776 struct lu_fid *fid, __u32 ino)
5778 struct lustre_ost_attrs *loa = &oti->oti_ost_attrs;
5779 struct inode *inode;
5782 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
5783 inode = osd_iget(oti, dev, &oic->oic_lid);
5784 if (IS_ERR(inode)) {
5785 fid_zero(&oic->oic_fid);
5786 return PTR_ERR(inode);
5789 rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, loa);
5792 fid_zero(&oic->oic_fid);
5794 *fid = oic->oic_fid = loa->loa_lma.lma_self_fid;
5798 void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
5799 struct osd_inode_id *id, const struct lu_fid *fid)
5801 CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
5802 id->oii_ino, id->oii_gen, info);
5803 info->oti_cache.oic_lid = *id;
5804 info->oti_cache.oic_fid = *fid;
5805 info->oti_cache.oic_dev = osd;
5809 * Get parent FID from the linkEA.
5811 * For a directory which parent resides on remote MDT, to satisfy the
5812 * local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
5813 * the other hand, to make the lookup(..) on the directory can return
5814 * the real parent FID, we append the real parent FID after its ".."
5815 * name entry in the /REMOTE_PARENT_DIR.
5817 * Unfortunately, such PFID-in-dirent cannot be preserved via file-level
5818 * backup. So after the restore, we cannot get the right parent FID from
5819 * its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
5820 * we have stored the real parent FID in the directory object's linkEA,
5821 * we can parse the linkEA for the real parent FID.
5823 * \param[in] env pointer to the thread context
5824 * \param[in] obj pointer to the object to be handled
5825 * \param[out]fid pointer to the buffer to hold the parent FID
5827 * \retval 0 for getting the real parent FID successfully
5828 * \retval negative error number on failure
5830 static int osd_get_pfid_from_linkea(const struct lu_env *env,
5831 struct osd_object *obj,
5834 struct osd_thread_info *oti = osd_oti_get(env);
5835 struct lu_buf *buf = &oti->oti_big_buf;
5836 struct dentry *dentry = &oti->oti_obj_dentry;
5837 struct inode *inode = obj->oo_inode;
5838 struct linkea_data ldata = { NULL };
5844 if (!S_ISDIR(inode->i_mode))
5848 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5849 buf->lb_buf, buf->lb_len);
5850 if (rc == -ERANGE) {
5851 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5854 lu_buf_realloc(buf, rc);
5855 if (buf->lb_buf == NULL)
5862 if (unlikely(rc == 0))
5868 if (unlikely(buf->lb_buf == NULL)) {
5869 lu_buf_realloc(buf, rc);
5870 if (buf->lb_buf == NULL)
5877 rc = linkea_init_with_rec(&ldata);
5879 linkea_first_entry(&ldata);
5880 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
5886 static int osd_verify_ent_by_linkea(const struct lu_env *env,
5887 struct inode *inode,
5888 const struct lu_fid *pfid,
5889 const char *name, const int namelen)
5891 struct osd_thread_info *oti = osd_oti_get(env);
5892 struct lu_buf *buf = &oti->oti_big_buf;
5893 struct dentry *dentry = &oti->oti_obj_dentry;
5894 struct linkea_data ldata = { NULL };
5895 struct lu_name cname = { .ln_name = name,
5896 .ln_namelen = namelen };
5902 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
5903 buf->lb_buf, buf->lb_len);
5905 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK, NULL, 0);
5910 if (unlikely(rc == 0))
5913 if (buf->lb_len < rc) {
5914 lu_buf_realloc(buf, rc);
5915 if (buf->lb_buf == NULL)
5922 rc = linkea_init_with_rec(&ldata);
5924 rc = linkea_links_find(&ldata, &cname, pfid);
5930 * Calls ->lookup() to find dentry. From dentry get inode and
5931 * read inode's ea to get fid. This is required for interoperability
5934 * \retval 0, on success
5935 * \retval -ve, on error
5937 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
5938 struct dt_rec *rec, const struct dt_key *key)
5940 struct inode *dir = obj->oo_inode;
5941 struct dentry *dentry;
5942 struct ldiskfs_dir_entry_2 *de;
5943 struct buffer_head *bh;
5944 struct lu_fid *fid = (struct lu_fid *)rec;
5945 struct htree_lock *hlock = NULL;
5951 LASSERT(dir->i_op != NULL);
5952 LASSERT(dir->i_op->lookup != NULL);
5954 dentry = osd_child_dentry_get(env, obj,
5955 (char *)key, strlen((char *)key));
5957 if (obj->oo_hl_head != NULL) {
5958 hlock = osd_oti_get(env)->oti_hlock;
5959 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5960 dir, LDISKFS_HLOCK_LOOKUP);
5962 down_read(&obj->oo_ext_idx_sem);
5965 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5967 struct osd_thread_info *oti = osd_oti_get(env);
5968 struct osd_inode_id *id = &oti->oti_id;
5969 struct osd_idmap_cache *oic = &oti->oti_cache;
5970 struct osd_device *dev = osd_obj2dev(obj);
5972 ino = le32_to_cpu(de->inode);
5973 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
5975 rc = osd_fail_fid_lookup(oti, dev, oic, fid, ino);
5979 rc = osd_get_fid_from_dentry(de, rec);
5981 /* done with de, release bh */
5984 if (unlikely(is_remote_parent_ino(dev, ino))) {
5985 const char *name = (const char *)key;
5988 * If the parent is on remote MDT, and there
5989 * is no FID-in-dirent, then we have to get
5990 * the parent FID from the linkEA.
5992 if (likely(strlen(name) == 2 &&
5993 name[0] == '.' && name[1] == '.'))
5994 rc = osd_get_pfid_from_linkea(env, obj,
5997 rc = osd_ea_fid_get(env, obj, ino, fid, id);
6000 osd_id_gen(id, ino, OSD_OII_NOGEN);
6003 if (rc != 0 || osd_remote_fid(env, dev, fid)) {
6004 fid_zero(&oic->oic_fid);
6009 osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id, fid);
6010 rc = osd_consistency_check(oti, dev, oic);
6012 fid_zero(&oic->oic_fid);
6014 /* Other error should not affect lookup result. */
6024 ldiskfs_htree_unlock(hlock);
6026 up_read(&obj->oo_ext_idx_sem);
6030 static int osd_index_declare_ea_insert(const struct lu_env *env,
6031 struct dt_object *dt,
6032 const struct dt_rec *rec,
6033 const struct dt_key *key,
6034 struct thandle *handle)
6036 struct osd_thandle *oh;
6037 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
6038 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
6039 const struct lu_fid *fid = rec1->rec_fid;
6040 int credits, rc = 0;
6041 struct osd_idmap_cache *idc;
6045 LASSERT(!dt_object_remote(dt));
6046 LASSERT(handle != NULL);
6047 LASSERT(fid != NULL);
6048 LASSERT(rec1->rec_type != 0);
6050 oh = container_of(handle, struct osd_thandle, ot_super);
6051 LASSERT(oh->ot_handle == NULL);
6053 credits = osd_dto_credits_noquota[DTO_INDEX_INSERT];
6056 * we can't call iget() while a transactions is running
6057 * (this can lead to a deadlock), but we need to know
6058 * inum and object type. so we find this information at
6059 * declaration and cache in per-thread info
6061 idc = osd_idc_find_or_init(env, osd, fid);
6063 RETURN(PTR_ERR(idc));
6064 if (idc->oic_remote) {
6066 * a reference to remote inode is represented by an
6067 * agent inode which we have to create
6069 credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
6070 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
6073 osd_trans_declare_op(env, oh, OSD_OT_INSERT, credits);
6075 if (osd_dt_obj(dt)->oo_inode != NULL) {
6076 struct inode *inode = osd_dt_obj(dt)->oo_inode;
6079 * We ignore block quota on meta pool (MDTs), so needn't
6080 * calculate how many blocks will be consumed by this index
6083 rc = osd_declare_inode_qid(env, i_uid_read(inode),
6085 i_projid_read(inode), 0,
6086 oh, osd_dt_obj(dt), NULL,
6091 #ifdef HAVE_PROJECT_QUOTA
6093 * Reserve credits for local agent inode to transfer
6094 * to 0, quota enforcement is ignored in this case.
6096 if (idc->oic_remote &&
6097 LDISKFS_I(inode)->i_flags & LUSTRE_PROJINHERIT_FL &&
6098 i_projid_read(inode) != 0)
6099 rc = osd_declare_attr_qid(env, osd_dt_obj(dt), oh,
6100 0, i_projid_read(inode),
6101 0, false, PRJQUOTA, true);
6109 * Index add function for interoperability mode (b11826).
6110 * It will add the directory entry.This entry is needed to
6111 * maintain name->fid mapping.
6113 * \param key it is key i.e. file entry to be inserted
6114 * \param rec it is value of given key i.e. fid
6116 * \retval 0, on success
6117 * \retval -ve, on error
6119 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
6120 const struct dt_rec *rec,
6121 const struct dt_key *key, struct thandle *th)
6123 struct osd_object *obj = osd_dt_obj(dt);
6124 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
6125 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
6126 const struct lu_fid *fid = rec1->rec_fid;
6127 const char *name = (const char *)key;
6128 struct osd_thread_info *oti = osd_oti_get(env);
6129 struct inode *child_inode = NULL;
6130 struct osd_idmap_cache *idc;
6135 if (!dt_object_exists(dt))
6138 LASSERT(osd_invariant(obj));
6139 LASSERT(!dt_object_remote(dt));
6140 LASSERT(th != NULL);
6142 osd_trans_exec_op(env, th, OSD_OT_INSERT);
6144 LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
6146 idc = osd_idc_find(env, osd, fid);
6147 if (unlikely(idc == NULL)) {
6148 idc = osd_idc_find_or_init(env, osd, fid);
6151 * this dt_insert() wasn't declared properly, so
6152 * FID is missing in OI cache. we better do not
6153 * lookup FID in FLDB/OI and don't risk to deadlock,
6154 * but in some special cases (lfsck testing, etc)
6155 * it's much simpler than fixing a caller.
6157 * normally this error should be placed after the first
6158 * find, but migrate may attach source stripes to
6159 * target, which doesn't create stripes.
6161 CERROR("%s: "DFID" wasn't declared for insert\n",
6162 osd_name(osd), PFID(fid));
6164 RETURN(PTR_ERR(idc));
6168 if (idc->oic_remote) {
6169 /* Insert remote entry */
6170 if (strcmp(name, dotdot) == 0 && strlen(name) == 2) {
6172 igrab(osd->od_mdt_map->omm_remote_parent->d_inode);
6174 child_inode = osd_create_local_agent_inode(env, osd,
6175 obj, fid, rec1->rec_type & S_IFMT, th);
6176 if (IS_ERR(child_inode))
6177 RETURN(PTR_ERR(child_inode));
6180 /* Insert local entry */
6181 if (unlikely(idc->oic_lid.oii_ino == 0)) {
6182 /* for a reason OI cache wasn't filled properly */
6183 CERROR("%s: OIC for "DFID" isn't filled\n",
6184 osd_name(osd), PFID(fid));
6187 child_inode = oti->oti_inode;
6188 if (unlikely(child_inode == NULL)) {
6189 struct ldiskfs_inode_info *lii;
6194 child_inode = oti->oti_inode = &lii->vfs_inode;
6196 child_inode->i_sb = osd_sb(osd);
6197 child_inode->i_ino = idc->oic_lid.oii_ino;
6198 child_inode->i_mode = rec1->rec_type & S_IFMT;
6201 rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
6203 CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
6204 obj->oo_inode->i_ino, name, child_inode->i_ino, rc);
6206 if (child_inode && child_inode != oti->oti_inode)
6208 LASSERT(osd_invariant(obj));
6209 osd_trans_exec_check(env, th, OSD_OT_INSERT);
6215 * Initialize osd Iterator for given osd index object.
6217 * \param dt osd index object
6220 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
6221 struct dt_object *dt,
6224 struct osd_it_iam *it;
6225 struct osd_object *obj = osd_dt_obj(dt);
6226 struct lu_object *lo = &dt->do_lu;
6227 struct iam_path_descr *ipd;
6228 struct iam_container *bag = &obj->oo_dir->od_container;
6230 if (!dt_object_exists(dt))
6231 return ERR_PTR(-ENOENT);
6235 return ERR_PTR(-ENOMEM);
6237 ipd = osd_it_ipd_get(env, bag);
6238 if (likely(ipd != NULL)) {
6242 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
6243 return (struct dt_it *)it;
6246 return ERR_PTR(-ENOMEM);
6251 * free given Iterator.
6253 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
6255 struct osd_it_iam *it = (struct osd_it_iam *)di;
6256 struct osd_object *obj = it->oi_obj;
6258 iam_it_fini(&it->oi_it);
6259 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
6260 osd_object_put(env, obj);
6265 * Move Iterator to record specified by \a key
6267 * \param di osd iterator
6268 * \param key key for index
6270 * \retval +ve di points to record with least key not larger than key
6271 * \retval 0 di points to exact matched key
6272 * \retval -ve failure
6275 static int osd_it_iam_get(const struct lu_env *env,
6276 struct dt_it *di, const struct dt_key *key)
6278 struct osd_thread_info *oti = osd_oti_get(env);
6279 struct osd_it_iam *it = (struct osd_it_iam *)di;
6281 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
6282 /* swab quota uid/gid */
6283 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
6284 key = (struct dt_key *)&oti->oti_quota_id;
6287 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
6293 * \param di osd iterator
6295 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
6297 struct osd_it_iam *it = (struct osd_it_iam *)di;
6299 iam_it_put(&it->oi_it);
6303 * Move iterator by one record
6305 * \param di osd iterator
6307 * \retval +1 end of container reached
6309 * \retval -ve failure
6312 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
6314 struct osd_it_iam *it = (struct osd_it_iam *)di;
6316 return iam_it_next(&it->oi_it);
6320 * Return pointer to the key under iterator.
6323 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
6324 const struct dt_it *di)
6326 struct osd_thread_info *oti = osd_oti_get(env);
6327 struct osd_it_iam *it = (struct osd_it_iam *)di;
6328 struct osd_object *obj = it->oi_obj;
6331 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
6333 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
6334 /* swab quota uid/gid */
6335 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
6336 key = (struct dt_key *)&oti->oti_quota_id;
6343 * Return size of key under iterator (in bytes)
6346 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
6348 struct osd_it_iam *it = (struct osd_it_iam *)di;
6350 return iam_it_key_size(&it->oi_it);
6354 osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
6356 /* check if file type is required */
6357 if (ent->lde_attrs & LUDA_TYPE) {
6358 struct luda_type *lt;
6359 int align = sizeof(*lt) - 1;
6361 len = (len + align) & ~align;
6362 lt = (struct luda_type *)(ent->lde_name + len);
6363 lt->lt_type = cpu_to_le16(DTTOIF(type));
6366 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
6370 * build lu direct from backend fs dirent.
6374 osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
6375 char *name, __u16 namelen, __u16 type, __u32 attr)
6377 ent->lde_attrs = attr | LUDA_FID;
6378 fid_cpu_to_le(&ent->lde_fid, fid);
6380 ent->lde_hash = cpu_to_le64(offset);
6381 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
6383 strncpy(ent->lde_name, name, namelen);
6384 ent->lde_name[namelen] = '\0';
6385 ent->lde_namelen = cpu_to_le16(namelen);
6387 /* append lustre attributes */
6388 osd_it_append_attrs(ent, namelen, type);
6392 * Return pointer to the record under iterator.
6394 static int osd_it_iam_rec(const struct lu_env *env,
6395 const struct dt_it *di,
6396 struct dt_rec *dtrec, __u32 attr)
6398 struct osd_it_iam *it = (struct osd_it_iam *)di;
6399 struct osd_thread_info *info = osd_oti_get(env);
6403 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
6404 const struct osd_fid_pack *rec;
6405 struct lu_fid *fid = &info->oti_fid;
6406 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
6412 name = (char *)iam_it_key_get(&it->oi_it);
6414 RETURN(PTR_ERR(name));
6416 namelen = iam_it_key_size(&it->oi_it);
6418 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
6420 RETURN(PTR_ERR(rec));
6422 rc = osd_fid_unpack(fid, rec);
6426 hash = iam_it_store(&it->oi_it);
6428 /* IAM does not store object type in IAM index (dir) */
6429 osd_it_pack_dirent(lde, fid, hash, name, namelen,
6431 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
6432 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
6433 (struct iam_rec *)dtrec);
6434 osd_quota_unpack(it->oi_obj, dtrec);
6436 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
6437 (struct iam_rec *)dtrec);
6444 * Returns cookie for current Iterator position.
6446 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
6448 struct osd_it_iam *it = (struct osd_it_iam *)di;
6450 return iam_it_store(&it->oi_it);
6454 * Restore iterator from cookie.
6456 * \param di osd iterator
6457 * \param hash Iterator location cookie
6459 * \retval +ve di points to record with least key not larger than key.
6460 * \retval 0 di points to exact matched key
6461 * \retval -ve failure
6464 static int osd_it_iam_load(const struct lu_env *env,
6465 const struct dt_it *di, __u64 hash)
6467 struct osd_it_iam *it = (struct osd_it_iam *)di;
6469 return iam_it_load(&it->oi_it, hash);
6472 static const struct dt_index_operations osd_index_iam_ops = {
6473 .dio_lookup = osd_index_iam_lookup,
6474 .dio_declare_insert = osd_index_declare_iam_insert,
6475 .dio_insert = osd_index_iam_insert,
6476 .dio_declare_delete = osd_index_declare_iam_delete,
6477 .dio_delete = osd_index_iam_delete,
6479 .init = osd_it_iam_init,
6480 .fini = osd_it_iam_fini,
6481 .get = osd_it_iam_get,
6482 .put = osd_it_iam_put,
6483 .next = osd_it_iam_next,
6484 .key = osd_it_iam_key,
6485 .key_size = osd_it_iam_key_size,
6486 .rec = osd_it_iam_rec,
6487 .store = osd_it_iam_store,
6488 .load = osd_it_iam_load
6494 * Creates or initializes iterator context.
6496 * \retval struct osd_it_ea, iterator structure on success
6499 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
6500 struct dt_object *dt,
6503 struct osd_object *obj = osd_dt_obj(dt);
6504 struct osd_thread_info *info = osd_oti_get(env);
6505 struct osd_it_ea *oie;
6507 struct lu_object *lo = &dt->do_lu;
6508 struct dentry *obj_dentry;
6512 if (!dt_object_exists(dt) || obj->oo_destroyed)
6513 RETURN(ERR_PTR(-ENOENT));
6515 OBD_SLAB_ALLOC_PTR_GFP(oie, osd_itea_cachep, GFP_NOFS);
6517 RETURN(ERR_PTR(-ENOMEM));
6518 obj_dentry = &oie->oie_dentry;
6520 obj_dentry->d_inode = obj->oo_inode;
6521 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
6522 obj_dentry->d_name.hash = 0;
6524 oie->oie_rd_dirent = 0;
6525 oie->oie_it_dirent = 0;
6526 oie->oie_dirent = NULL;
6527 if (unlikely(!info->oti_it_ea_buf_used)) {
6528 oie->oie_buf = info->oti_it_ea_buf;
6529 info->oti_it_ea_buf_used = 1;
6531 OBD_ALLOC(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6532 if (oie->oie_buf == NULL)
6533 RETURN(ERR_PTR(-ENOMEM));
6537 file = &oie->oie_file;
6539 /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
6540 if (attr & LUDA_64BITHASH)
6541 file->f_mode = FMODE_64BITHASH;
6543 file->f_mode = FMODE_32BITHASH;
6544 file->f_path.dentry = obj_dentry;
6545 file->f_mapping = obj->oo_inode->i_mapping;
6546 file->f_op = obj->oo_inode->i_fop;
6547 file->f_inode = obj->oo_inode;
6550 RETURN((struct dt_it *)oie);
6554 * Destroy or finishes iterator context.
6556 * \param di iterator structure to be destroyed
6558 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
6560 struct osd_thread_info *info = osd_oti_get(env);
6561 struct osd_it_ea *oie = (struct osd_it_ea *)di;
6562 struct osd_object *obj = oie->oie_obj;
6563 struct inode *inode = obj->oo_inode;
6566 oie->oie_file.f_op->release(inode, &oie->oie_file);
6567 osd_object_put(env, obj);
6568 if (unlikely(oie->oie_buf != info->oti_it_ea_buf))
6569 OBD_FREE(oie->oie_buf, OSD_IT_EA_BUFSIZE);
6571 info->oti_it_ea_buf_used = 0;
6572 OBD_SLAB_FREE_PTR(oie, osd_itea_cachep);
6577 * It position the iterator at given key, so that next lookup continues from
6578 * that key Or it is similar to dio_it->load() but based on a key,
6579 * rather than file position.
6581 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
6584 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
6586 static int osd_it_ea_get(const struct lu_env *env,
6587 struct dt_it *di, const struct dt_key *key)
6589 struct osd_it_ea *it = (struct osd_it_ea *)di;
6592 LASSERT(((const char *)key)[0] == '\0');
6593 it->oie_file.f_pos = 0;
6594 it->oie_rd_dirent = 0;
6595 it->oie_it_dirent = 0;
6596 it->oie_dirent = NULL;
6604 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
6608 struct osd_filldir_cbs {
6609 struct dir_context ctx;
6610 struct osd_it_ea *it;
6613 * It is called internally by ->iterate*(). It fills the
6614 * iterator's in-memory data structure with required
6615 * information i.e. name, namelen, rec_size etc.
6617 * \param buf in which information to be filled in.
6618 * \param name name of the file in given dir
6620 * \retval 0 on success
6621 * \retval 1 on buffer full
6623 #ifdef HAVE_FILLDIR_USE_CTX
6624 static int osd_ldiskfs_filldir(struct dir_context *buf,
6626 static int osd_ldiskfs_filldir(void *buf,
6628 const char *name, int namelen,
6629 loff_t offset, __u64 ino, unsigned int d_type)
6631 struct osd_it_ea *it = ((struct osd_filldir_cbs *)buf)->it;
6632 struct osd_object *obj = it->oie_obj;
6633 struct osd_it_ea_dirent *ent = it->oie_dirent;
6634 struct lu_fid *fid = &ent->oied_fid;
6635 struct osd_fid_pack *rec;
6639 /* this should never happen */
6640 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
6641 CERROR("ldiskfs return invalid namelen %d\n", namelen);
6645 if ((void *)ent - it->oie_buf + sizeof(*ent) + namelen >
6649 /* "." is just the object itself. */
6650 if (namelen == 1 && name[0] == '.') {
6651 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6652 } else if (d_type & LDISKFS_DIRENT_LUFID) {
6653 rec = (struct osd_fid_pack *)(name + namelen + 1);
6654 if (osd_fid_unpack(fid, rec) != 0)
6659 d_type &= ~LDISKFS_DIRENT_LUFID;
6661 /* NOT export local root. */
6662 if (unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
6663 ino = obj->oo_inode->i_ino;
6664 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
6667 ent->oied_ino = ino;
6668 ent->oied_off = offset;
6669 ent->oied_namelen = namelen;
6670 ent->oied_type = d_type;
6672 memcpy(ent->oied_name, name, namelen);
6674 it->oie_rd_dirent++;
6675 it->oie_dirent = (void *)ent + cfs_size_round(sizeof(*ent) + namelen);
6680 * Calls ->iterate*() to load a directory entry at a time
6681 * and stored it in iterator's in-memory data structure.
6683 * \param di iterator's in memory structure
6685 * \retval 0 on success
6686 * \retval -ve on error
6687 * \retval +1 reach the end of entry
6689 static int osd_ldiskfs_it_fill(const struct lu_env *env,
6690 const struct dt_it *di)
6692 struct osd_it_ea *it = (struct osd_it_ea *)di;
6693 struct osd_object *obj = it->oie_obj;
6694 struct inode *inode = obj->oo_inode;
6695 struct htree_lock *hlock = NULL;
6696 struct file *filp = &it->oie_file;
6698 struct osd_filldir_cbs buf = {
6699 .ctx.actor = osd_ldiskfs_filldir,
6704 it->oie_dirent = it->oie_buf;
6705 it->oie_rd_dirent = 0;
6707 if (obj->oo_hl_head != NULL) {
6708 hlock = osd_oti_get(env)->oti_hlock;
6709 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
6710 inode, LDISKFS_HLOCK_READDIR);
6712 down_read(&obj->oo_ext_idx_sem);
6715 filp->f_cred = current_cred();
6716 rc = osd_security_file_alloc(filp);
6720 filp->f_flags |= O_NOATIME;
6721 filp->f_mode |= FMODE_NONOTIFY;
6722 rc = iterate_dir(filp, &buf.ctx);
6727 ldiskfs_htree_unlock(hlock);
6729 up_read(&obj->oo_ext_idx_sem);
6731 if (it->oie_rd_dirent == 0) {
6733 * If it does not get any dirent, it means it has been reached
6734 * to the end of the dir
6736 it->oie_file.f_pos = ldiskfs_get_htree_eof(&it->oie_file);
6740 it->oie_dirent = it->oie_buf;
6741 it->oie_it_dirent = 1;
6748 * It calls osd_ldiskfs_it_fill() which will use ->iterate*()
6749 * to load a directory entry at a time and stored it in
6750 * iterator's in-memory data structure.
6752 * \param di iterator's in memory structure
6754 * \retval +ve iterator reached to end
6755 * \retval 0 iterator not reached to end
6756 * \retval -ve on error
6758 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
6760 struct osd_it_ea *it = (struct osd_it_ea *)di;
6765 if (it->oie_it_dirent < it->oie_rd_dirent) {
6767 (void *)it->oie_dirent +
6768 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
6769 it->oie_dirent->oied_namelen);
6770 it->oie_it_dirent++;
6773 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
6776 rc = osd_ldiskfs_it_fill(env, di);
6783 * Returns the key at current position from iterator's in memory structure.
6785 * \param di iterator's in memory structure
6787 * \retval key i.e. struct dt_key on success
6789 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
6790 const struct dt_it *di)
6792 struct osd_it_ea *it = (struct osd_it_ea *)di;
6794 return (struct dt_key *)it->oie_dirent->oied_name;
6798 * Returns key's size at current position from iterator's in memory structure.
6800 * \param di iterator's in memory structure
6802 * \retval key_size i.e. struct dt_key on success
6804 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
6806 struct osd_it_ea *it = (struct osd_it_ea *)di;
6808 return it->oie_dirent->oied_namelen;
6811 #if defined LDISKFS_DIR_ENTRY_LEN && defined LDISKFS_DIR_ENTRY_LEN_
6812 #undef LDISKFS_DIR_REC_LEN
6813 #define LDISKFS_DIR_REC_LEN(de) LDISKFS_DIR_ENTRY_LEN_((de))
6816 static inline bool osd_dotdot_has_space(struct ldiskfs_dir_entry_2 *de)
6818 if (LDISKFS_DIR_REC_LEN(de) >=
6819 __LDISKFS_DIR_REC_LEN(2 + 1 + sizeof(struct osd_fid_pack)))
6826 osd_dirent_has_space(struct ldiskfs_dir_entry_2 *de, __u16 namelen,
6827 unsigned int blocksize, bool dotdot)
6830 return osd_dotdot_has_space(de);
6832 if (ldiskfs_rec_len_from_disk(de->rec_len, blocksize) >=
6833 __LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
6840 osd_dirent_reinsert(const struct lu_env *env, struct osd_device *dev,
6841 handle_t *jh, struct dentry *dentry,
6842 const struct lu_fid *fid, struct buffer_head *bh,
6843 struct ldiskfs_dir_entry_2 *de, struct htree_lock *hlock,
6846 struct inode *dir = dentry->d_parent->d_inode;
6847 struct inode *inode = dentry->d_inode;
6848 struct osd_fid_pack *rec;
6849 struct ldiskfs_dentry_param *ldp;
6850 int namelen = dentry->d_name.len;
6852 struct osd_thread_info *info = osd_oti_get(env);
6856 if (!ldiskfs_has_feature_dirdata(inode->i_sb))
6859 /* There is enough space to hold the FID-in-dirent. */
6860 if (osd_dirent_has_space(de, namelen, dir->i_sb->s_blocksize, dotdot)) {
6861 rc = ldiskfs_journal_get_write_access(jh, bh);
6865 de->name[namelen] = 0;
6866 rec = (struct osd_fid_pack *)(de->name + namelen + 1);
6867 rec->fp_len = sizeof(struct lu_fid) + 1;
6868 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
6869 de->file_type |= LDISKFS_DIRENT_LUFID;
6870 rc = ldiskfs_handle_dirty_metadata(jh, NULL, bh);
6877 rc = ldiskfs_delete_entry(jh, dir, de, bh);
6881 ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
6882 osd_get_ldiskfs_dirent_param(ldp, fid);
6883 dentry->d_fsdata = (void *)ldp;
6884 dquot_initialize(dir);
6885 rc = osd_ldiskfs_add_entry(info, dev, jh, dentry, inode, hlock);
6887 * It is too bad, we cannot reinsert the name entry back.
6888 * That means we lose it!
6891 CDEBUG(D_LFSCK, "%s: fail to reinsert the dirent, "
6892 "dir = %lu/%u, name = %.*s, "DFID": rc = %d\n",
6893 osd_ino2name(inode),
6894 dir->i_ino, dir->i_generation, namelen,
6895 dentry->d_name.name, PFID(fid), rc);
6901 osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
6902 struct osd_it_ea *it, struct lu_fid *fid,
6903 struct osd_inode_id *id, __u32 *attr)
6905 struct osd_thread_info *info = osd_oti_get(env);
6906 struct lustre_mdt_attrs *lma = &info->oti_ost_attrs.loa_lma;
6907 struct osd_device *dev = osd_obj2dev(obj);
6908 struct super_block *sb = osd_sb(dev);
6909 const char *devname = osd_name(dev);
6910 struct osd_it_ea_dirent *ent = it->oie_dirent;
6911 struct inode *dir = obj->oo_inode;
6912 struct htree_lock *hlock = NULL;
6913 struct buffer_head *bh = NULL;
6914 handle_t *jh = NULL;
6915 struct ldiskfs_dir_entry_2 *de;
6916 struct dentry *dentry;
6917 struct inode *inode;
6918 const struct lu_fid *pfid = lu_object_fid(&obj->oo_dt.do_lu);
6921 bool dotdot = false;
6926 if (ent->oied_name[0] == '.') {
6927 if (ent->oied_namelen == 1)
6930 if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
6934 osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
6935 inode = osd_iget(info, dev, id);
6936 if (IS_ERR(inode)) {
6937 rc = PTR_ERR(inode);
6938 if (rc == -ENOENT || rc == -ESTALE) {
6940 * Maybe dangling name entry, or
6941 * corrupted directory entry.
6943 *attr |= LUDA_UNKNOWN;
6946 CDEBUG(D_LFSCK, "%s: fail to iget() for dirent "
6947 "check_repair, dir = %lu/%u, name = %.*s, "
6948 "ino = %llu, rc = %d\n",
6949 devname, dir->i_ino, dir->i_generation,
6950 ent->oied_namelen, ent->oied_name,
6957 dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
6959 rc = osd_get_lma(info, inode, dentry, &info->oti_ost_attrs);
6960 if (rc == -ENODATA || !fid_is_sane(&lma->lma_self_fid))
6966 * We need to ensure that the name entry is still valid.
6967 * Because it may be removed or renamed by other already.
6969 * The unlink or rename operation will start journal before PDO lock,
6970 * so to avoid deadlock, here we need to start journal handle before
6971 * related PDO lock also. But because we do not know whether there
6972 * will be something to be repaired before PDO lock, we just start
6973 * journal without conditions.
6975 * We may need to remove the name entry firstly, then insert back.
6976 * One credit is for user quota file update.
6977 * One credit is for group quota file update.
6978 * Two credits are for dirty inode.
6980 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
6981 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
6983 if (dev->od_dirent_journal != 0) {
6986 jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
6989 CDEBUG(D_LFSCK, "%s: fail to start trans for dirent "
6990 "check_repair, dir = %lu/%u, credits = %d, "
6991 "name = %.*s, ino = %llu: rc = %d\n",
6992 devname, dir->i_ino, dir->i_generation, credits,
6993 ent->oied_namelen, ent->oied_name,
6996 GOTO(out_inode, rc);
6999 if (obj->oo_hl_head != NULL) {
7000 hlock = osd_oti_get(env)->oti_hlock;
7002 * "0" means exclusive lock for the whole directory.
7003 * We need to prevent others access such name entry
7004 * during the delete + insert. Neither HLOCK_ADD nor
7005 * HLOCK_DEL cannot guarantee the atomicity.
7007 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
7009 down_write(&obj->oo_ext_idx_sem);
7012 if (obj->oo_hl_head != NULL) {
7013 hlock = osd_oti_get(env)->oti_hlock;
7014 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
7015 LDISKFS_HLOCK_LOOKUP);
7017 down_read(&obj->oo_ext_idx_sem);
7021 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
7022 if (IS_ERR(bh) || le32_to_cpu(de->inode) != inode->i_ino) {
7023 *attr |= LUDA_IGNORE;
7029 * For dotdot entry, if there is not enough space to hold the
7030 * FID-in-dirent, just keep them there. It only happens when the
7031 * device upgraded from 1.8 or restored from MDT file-level backup.
7032 * For the whole directory, only dotdot entry have no FID-in-dirent
7033 * and needs to get FID from LMA when readdir, it will not affect the
7036 if (dotdot && !osd_dotdot_has_space(de)) {
7037 *attr |= LUDA_UNKNOWN;
7043 if (lu_fid_eq(fid, &lma->lma_self_fid))
7046 if (unlikely(lma->lma_compat & LMAC_NOT_IN_OI)) {
7047 struct lu_fid *tfid = &lma->lma_self_fid;
7049 if (likely(dotdot &&
7050 fid_seq(tfid) == FID_SEQ_LOCAL_FILE &&
7051 fid_oid(tfid) == REMOTE_PARENT_DIR_OID)) {
7053 * It must be REMOTE_PARENT_DIR and as the
7054 * 'dotdot' entry of remote directory
7056 *attr |= LUDA_IGNORE;
7058 CDEBUG(D_LFSCK, "%s: expect remote agent "
7059 "parent directory, but got %.*s under "
7060 "dir = %lu/%u with the FID "DFID"\n",
7061 devname, ent->oied_namelen,
7062 ent->oied_name, dir->i_ino,
7063 dir->i_generation, PFID(tfid));
7065 *attr |= LUDA_UNKNOWN;
7072 if (!fid_is_zero(fid)) {
7073 rc = osd_verify_ent_by_linkea(env, inode, pfid, ent->oied_name,
7075 if (rc == -ENOENT ||
7077 !(dev->od_scrub.os_scrub.os_file.sf_flags & SF_UPGRADE))) {
7079 * linkEA does not recognize the dirent entry,
7080 * it may because the dirent entry corruption
7081 * and points to other's inode.
7083 CDEBUG(D_LFSCK, "%s: the target inode does not "
7084 "recognize the dirent, dir = %lu/%u, "
7085 " name = %.*s, ino = %llu, "
7086 DFID": rc = %d\n", devname, dir->i_ino,
7087 dir->i_generation, ent->oied_namelen,
7088 ent->oied_name, ent->oied_ino, PFID(fid), rc);
7089 *attr |= LUDA_UNKNOWN;
7094 if (rc && rc != -ENODATA) {
7095 CDEBUG(D_LFSCK, "%s: fail to verify FID in the dirent, "
7096 "dir = %lu/%u, name = %.*s, ino = %llu, "
7097 DFID": rc = %d\n", devname, dir->i_ino,
7098 dir->i_generation, ent->oied_namelen,
7099 ent->oied_name, ent->oied_ino, PFID(fid), rc);
7100 *attr |= LUDA_UNKNOWN;
7108 * linkEA recognizes the dirent entry, the FID-in-LMA is
7109 * valid, trusted, in spite of fid_is_sane(fid) or not.
7111 if (*attr & LUDA_VERIFY_DRYRUN) {
7112 *fid = lma->lma_self_fid;
7113 *attr |= LUDA_REPAIR;
7120 dev->od_dirent_journal = 1;
7121 if (hlock != NULL) {
7122 ldiskfs_htree_unlock(hlock);
7125 up_read(&obj->oo_ext_idx_sem);
7131 *fid = lma->lma_self_fid;
7133 /* Update or append the FID-in-dirent. */
7134 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
7135 bh, de, hlock, dotdot);
7137 *attr |= LUDA_REPAIR;
7139 CDEBUG(D_LFSCK, "%s: fail to re-insert FID after "
7140 "the dirent, dir = %lu/%u, name = %.*s, "
7141 "ino = %llu, "DFID": rc = %d\n",
7142 devname, dir->i_ino, dir->i_generation,
7143 ent->oied_namelen, ent->oied_name,
7144 ent->oied_ino, PFID(fid), rc);
7146 /* lma is NULL, trust the FID-in-dirent if it is valid. */
7147 if (*attr & LUDA_VERIFY_DRYRUN) {
7148 if (fid_is_sane(fid)) {
7149 *attr |= LUDA_REPAIR;
7150 } else if (dev->od_index == 0) {
7151 lu_igif_build(fid, inode->i_ino,
7152 inode->i_generation);
7153 *attr |= LUDA_UPGRADE;
7161 dev->od_dirent_journal = 1;
7162 if (hlock != NULL) {
7163 ldiskfs_htree_unlock(hlock);
7166 up_read(&obj->oo_ext_idx_sem);
7173 if (unlikely(fid_is_sane(fid))) {
7175 * FID-in-dirent exists, but FID-in-LMA is lost.
7176 * Trust the FID-in-dirent, and add FID-in-LMA.
7178 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
7180 *attr |= LUDA_REPAIR;
7182 CDEBUG(D_LFSCK, "%s: fail to set LMA for "
7183 "update dirent, dir = %lu/%u, "
7184 "name = %.*s, ino = %llu, "
7186 devname, dir->i_ino, dir->i_generation,
7187 ent->oied_namelen, ent->oied_name,
7188 ent->oied_ino, PFID(fid), rc);
7189 } else if (dev->od_index == 0) {
7190 lu_igif_build(fid, inode->i_ino, inode->i_generation);
7192 * It is probably IGIF object. Only aappend the
7193 * FID-in-dirent. OI scrub will process FID-in-LMA.
7195 rc = osd_dirent_reinsert(env, dev, jh, dentry, fid,
7196 bh, de, hlock, dotdot);
7198 *attr |= LUDA_UPGRADE;
7200 CDEBUG(D_LFSCK, "%s: fail to append IGIF "
7201 "after the dirent, dir = %lu/%u, "
7202 "name = %.*s, ino = %llu, "
7204 devname, dir->i_ino, dir->i_generation,
7205 ent->oied_namelen, ent->oied_name,
7206 ent->oied_ino, PFID(fid), rc);
7215 if (hlock != NULL) {
7216 ldiskfs_htree_unlock(hlock);
7218 if (dev->od_dirent_journal != 0)
7219 up_write(&obj->oo_ext_idx_sem);
7221 up_read(&obj->oo_ext_idx_sem);
7225 ldiskfs_journal_stop(jh);
7229 if (rc >= 0 && !dirty)
7230 dev->od_dirent_journal = 0;
7236 * Returns the value at current position from iterator's in memory structure.
7238 * \param di struct osd_it_ea, iterator's in memory structure
7239 * \param attr attr requested for dirent.
7240 * \param lde lustre dirent
7242 * \retval 0 no error and \param lde has correct lustre dirent.
7243 * \retval -ve on error
7245 static inline int osd_it_ea_rec(const struct lu_env *env,
7246 const struct dt_it *di,
7247 struct dt_rec *dtrec, __u32 attr)
7249 struct osd_it_ea *it = (struct osd_it_ea *)di;
7250 struct osd_object *obj = it->oie_obj;
7251 struct osd_device *dev = osd_obj2dev(obj);
7252 struct osd_thread_info *oti = osd_oti_get(env);
7253 struct osd_inode_id *id = &oti->oti_id;
7254 struct lu_fid *fid = &it->oie_dirent->oied_fid;
7255 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
7256 __u32 ino = it->oie_dirent->oied_ino;
7261 LASSERT(!is_remote_parent_ino(dev, obj->oo_inode->i_ino));
7263 if (attr & LUDA_VERIFY) {
7264 if (unlikely(is_remote_parent_ino(dev, ino))) {
7265 attr |= LUDA_IGNORE;
7267 * If the parent is on remote MDT, and there
7268 * is no FID-in-dirent, then we have to get
7269 * the parent FID from the linkEA.
7271 if (!fid_is_sane(fid) &&
7272 it->oie_dirent->oied_namelen == 2 &&
7273 it->oie_dirent->oied_name[0] == '.' &&
7274 it->oie_dirent->oied_name[1] == '.')
7275 osd_get_pfid_from_linkea(env, obj, fid);
7277 rc = osd_dirent_check_repair(env, obj, it, fid, id,
7281 if (!fid_is_sane(fid))
7282 attr |= LUDA_UNKNOWN;
7284 attr &= ~LU_DIRENT_ATTRS_MASK;
7285 if (!fid_is_sane(fid)) {
7286 bool is_dotdot = false;
7288 if (it->oie_dirent->oied_namelen == 2 &&
7289 it->oie_dirent->oied_name[0] == '.' &&
7290 it->oie_dirent->oied_name[1] == '.')
7293 * If the parent is on remote MDT, and there
7294 * is no FID-in-dirent, then we have to get
7295 * the parent FID from the linkEA.
7297 if (is_remote_parent_ino(dev, ino) && is_dotdot) {
7298 rc = osd_get_pfid_from_linkea(env, obj, fid);
7300 if (is_dotdot == false &&
7301 OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP))
7304 rc = osd_ea_fid_get(env, obj, ino, fid, id);
7307 osd_id_gen(id, ino, OSD_OII_NOGEN);
7311 /* Pack the entry anyway, at least the offset is right. */
7312 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
7313 it->oie_dirent->oied_name,
7314 it->oie_dirent->oied_namelen,
7315 it->oie_dirent->oied_type, attr);
7320 if (osd_remote_fid(env, dev, fid))
7323 if (likely(!(attr & (LUDA_IGNORE | LUDA_UNKNOWN)) && rc == 0))
7324 osd_add_oi_cache(oti, dev, id, fid);
7326 RETURN(rc > 0 ? 0 : rc);
7330 * Returns the record size size at current position.
7332 * This function will return record(lu_dirent) size in bytes.
7334 * \param[in] env execution environment
7335 * \param[in] di iterator's in memory structure
7336 * \param[in] attr attribute of the entry, only requires LUDA_TYPE to
7337 * calculate the lu_dirent size.
7339 * \retval record size(in bytes & in memory) of the current lu_dirent
7342 static int osd_it_ea_rec_size(const struct lu_env *env, const struct dt_it *di,
7345 struct osd_it_ea *it = (struct osd_it_ea *)di;
7347 return lu_dirent_calc_size(it->oie_dirent->oied_namelen, attr);
7351 * Returns a cookie for current position of the iterator head, so that
7352 * user can use this cookie to load/start the iterator next time.
7354 * \param di iterator's in memory structure
7356 * \retval cookie for current position, on success
7358 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
7360 struct osd_it_ea *it = (struct osd_it_ea *)di;
7362 return it->oie_dirent->oied_off;
7366 * It calls osd_ldiskfs_it_fill() which will use ->iterate*()
7367 * to load a directory entry at a time and stored it i inn,
7368 * in iterator's in-memory data structure.
7370 * \param di struct osd_it_ea, iterator's in memory structure
7372 * \retval +ve on success
7373 * \retval -ve on error
7375 static int osd_it_ea_load(const struct lu_env *env,
7376 const struct dt_it *di, __u64 hash)
7378 struct osd_it_ea *it = (struct osd_it_ea *)di;
7382 it->oie_file.f_pos = hash;
7384 rc = osd_ldiskfs_it_fill(env, di);
7395 * Index lookup function for interoperability mode (b11826).
7397 * \param key, key i.e. file name to be searched
7399 * \retval +ve, on success
7400 * \retval -ve, on error
7402 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
7403 struct dt_rec *rec, const struct dt_key *key)
7405 struct osd_object *obj = osd_dt_obj(dt);
7410 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
7411 LINVRNT(osd_invariant(obj));
7413 rc = osd_ea_lookup_rec(env, obj, rec, key);
7420 * Index and Iterator operations for interoperability
7421 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
7423 static const struct dt_index_operations osd_index_ea_ops = {
7424 .dio_lookup = osd_index_ea_lookup,
7425 .dio_declare_insert = osd_index_declare_ea_insert,
7426 .dio_insert = osd_index_ea_insert,
7427 .dio_declare_delete = osd_index_declare_ea_delete,
7428 .dio_delete = osd_index_ea_delete,
7430 .init = osd_it_ea_init,
7431 .fini = osd_it_ea_fini,
7432 .get = osd_it_ea_get,
7433 .put = osd_it_ea_put,
7434 .next = osd_it_ea_next,
7435 .key = osd_it_ea_key,
7436 .key_size = osd_it_ea_key_size,
7437 .rec = osd_it_ea_rec,
7438 .rec_size = osd_it_ea_rec_size,
7439 .store = osd_it_ea_store,
7440 .load = osd_it_ea_load
7444 static void *osd_key_init(const struct lu_context *ctx,
7445 struct lu_context_key *key)
7447 struct osd_thread_info *info;
7449 OBD_ALLOC_PTR(info);
7451 return ERR_PTR(-ENOMEM);
7453 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7454 if (info->oti_it_ea_buf == NULL)
7457 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
7459 info->oti_hlock = ldiskfs_htree_lock_alloc();
7460 if (info->oti_hlock == NULL)
7466 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7469 return ERR_PTR(-ENOMEM);
7472 static void osd_key_fini(const struct lu_context *ctx,
7473 struct lu_context_key *key, void *data)
7475 struct osd_thread_info *info = data;
7476 struct ldiskfs_inode_info *lli = LDISKFS_I(info->oti_inode);
7477 struct osd_idmap_cache *idc = info->oti_ins_cache;
7479 if (info->oti_dio_pages) {
7481 for (i = 0; i < PTLRPC_MAX_BRW_PAGES; i++) {
7482 struct page *page = info->oti_dio_pages[i];
7484 LASSERT(PagePrivate2(page));
7485 LASSERT(PageLocked(page));
7486 ClearPagePrivate2(page);
7491 OBD_FREE_PTR_ARRAY_LARGE(info->oti_dio_pages,
7492 PTLRPC_MAX_BRW_PAGES);
7495 if (info->oti_inode != NULL)
7497 if (info->oti_hlock != NULL)
7498 ldiskfs_htree_lock_free(info->oti_hlock);
7499 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
7500 lu_buf_free(&info->oti_iobuf.dr_pg_buf);
7501 lu_buf_free(&info->oti_iobuf.dr_bl_buf);
7502 lu_buf_free(&info->oti_iobuf.dr_lnb_buf);
7503 lu_buf_free(&info->oti_big_buf);
7505 LASSERT(info->oti_ins_cache_size > 0);
7506 OBD_FREE_PTR_ARRAY(idc, info->oti_ins_cache_size);
7507 info->oti_ins_cache = NULL;
7508 info->oti_ins_cache_size = 0;
7513 static void osd_key_exit(const struct lu_context *ctx,
7514 struct lu_context_key *key, void *data)
7516 struct osd_thread_info *info = data;
7518 LASSERT(info->oti_r_locks == 0);
7519 LASSERT(info->oti_w_locks == 0);
7520 LASSERT(info->oti_txns == 0);
7523 /* type constructor/destructor: osd_type_init, osd_type_fini */
7524 LU_TYPE_INIT_FINI(osd, &osd_key);
7526 struct lu_context_key osd_key = {
7527 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
7528 .lct_init = osd_key_init,
7529 .lct_fini = osd_key_fini,
7530 .lct_exit = osd_key_exit
7534 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
7535 const char *name, struct lu_device *next)
7537 struct osd_device *osd = osd_dev(d);
7539 if (strlcpy(osd->od_svname, name, sizeof(osd->od_svname)) >=
7540 sizeof(osd->od_svname))
7542 return osd_procfs_init(osd, name);
7545 static int osd_fid_init(const struct lu_env *env, struct osd_device *osd)
7547 struct seq_server_site *ss = osd_seq_site(osd);
7552 if (osd->od_is_ost || osd->od_cl_seq != NULL)
7555 if (unlikely(ss == NULL))
7558 OBD_ALLOC_PTR(osd->od_cl_seq);
7559 if (osd->od_cl_seq == NULL)
7562 seq_client_init(osd->od_cl_seq, NULL, LUSTRE_SEQ_METADATA,
7563 osd->od_svname, ss->ss_server_seq);
7565 if (ss->ss_node_id == 0) {
7567 * If the OSD on the sequence controller(MDT0), then allocate
7568 * sequence here, otherwise allocate sequence after connected
7569 * to MDT0 (see mdt_register_lwp_callback()).
7571 rc = seq_server_alloc_meta(osd->od_cl_seq->lcs_srv,
7572 &osd->od_cl_seq->lcs_space, env);
7578 static void osd_fid_fini(const struct lu_env *env, struct osd_device *osd)
7580 if (osd->od_cl_seq == NULL)
7583 seq_client_fini(osd->od_cl_seq);
7584 OBD_FREE_PTR(osd->od_cl_seq);
7585 osd->od_cl_seq = NULL;
7588 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
7592 /* shutdown quota slave instance associated with the device */
7593 if (o->od_quota_slave_md != NULL) {
7594 struct qsd_instance *qsd = o->od_quota_slave_md;
7596 o->od_quota_slave_md = NULL;
7600 if (o->od_quota_slave_dt != NULL) {
7601 struct qsd_instance *qsd = o->od_quota_slave_dt;
7603 o->od_quota_slave_dt = NULL;
7607 osd_fid_fini(env, o);
7608 osd_scrub_cleanup(env, o);
7613 static void osd_umount(const struct lu_env *env, struct osd_device *o)
7617 if (o->od_mnt != NULL) {
7618 shrink_dcache_sb(osd_sb(o));
7619 osd_sync(env, &o->od_dt_dev);
7628 static int osd_mount(const struct lu_env *env,
7629 struct osd_device *o, struct lustre_cfg *cfg)
7631 const char *name = lustre_cfg_string(cfg, 0);
7632 const char *dev = lustre_cfg_string(cfg, 1);
7634 unsigned long page, s_flags, lmd_flags = 0;
7635 struct page *__page;
7636 struct file_system_type *type;
7637 char *options = NULL;
7639 struct osd_thread_info *info = osd_oti_get(env);
7640 struct lu_fid *fid = &info->oti_fid;
7641 struct inode *inode;
7642 int rc = 0, force_over_1024tb = 0;
7646 if (o->od_mnt != NULL)
7649 if (strlen(dev) >= sizeof(o->od_mntdev))
7651 strcpy(o->od_mntdev, dev);
7653 str = lustre_cfg_string(cfg, 2);
7654 s_flags = simple_strtoul(str, NULL, 0);
7655 str = strstr(str, ":");
7657 lmd_flags = simple_strtoul(str + 1, NULL, 0);
7658 opts = lustre_cfg_string(cfg, 3);
7660 if (opts == NULL || strstr(opts, "bigendian_extents") == NULL) {
7661 CERROR("%s: device %s extents feature is not guaranteed to "
7662 "work on big-endian systems. Use \"bigendian_extents\" "
7663 "mount option to override.\n", name, dev);
7667 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7668 if (opts != NULL && strstr(opts, "force_over_128tb") != NULL) {
7669 CWARN("force_over_128tb option is deprecated. Filesystems smaller than 1024TB can be created without any force option. Use force_over_1024tb option for filesystems larger than 1024TB.\n");
7672 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 1, 53, 0)
7673 if (opts != NULL && strstr(opts, "force_over_256tb") != NULL) {
7674 CWARN("force_over_256tb option is deprecated. Filesystems smaller than 1024TB can be created without any force options. Use force_over_1024tb option for filesystems larger than 1024TB.\n");
7677 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 2, 53, 0)
7678 if (opts != NULL && strstr(opts, "force_over_512tb") != NULL) {
7679 CWARN("force_over_512tb option is deprecated. Filesystems smaller than 1024TB can be created without any force options. Use force_over_1024tb option for filesystems larger than 1024TB.\n");
7683 if (opts != NULL && strstr(opts, "force_over_1024tb") != NULL)
7684 force_over_1024tb = 1;
7686 __page = alloc_page(GFP_KERNEL);
7688 GOTO(out, rc = -ENOMEM);
7689 page = (unsigned long)page_address(__page);
7690 options = (char *)page;
7693 /* strip out the options for back compatiblity */
7694 static const char * const sout[] = {
7701 /* strip out option we processed in osd */
7702 "bigendian_extents",
7706 "force_over_1024tb",
7709 strncat(options, opts, PAGE_SIZE);
7710 for (rc = 0, str = options; sout[rc]; ) {
7711 char *op = strstr(str, sout[rc]);
7718 if (op == options || *(op - 1) == ',') {
7719 str = op + strlen(sout[rc]);
7720 if (*str == ',' || *str == '\0') {
7721 *str == ',' ? str++ : str;
7722 memmove(op, str, strlen(str) + 1);
7725 for (str = op; *str != ',' && *str != '\0'; str++)
7729 strncat(options, "user_xattr,acl", PAGE_SIZE);
7732 /* Glom up mount options */
7733 if (*options != '\0')
7734 strncat(options, ",", PAGE_SIZE);
7735 strncat(options, "no_mbcache,nodelalloc", PAGE_SIZE);
7737 type = get_fs_type("ldiskfs");
7739 CERROR("%s: cannot find ldiskfs module\n", name);
7740 GOTO(out, rc = -ENODEV);
7743 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
7744 module_put(type->owner);
7746 if (IS_ERR(o->od_mnt)) {
7747 rc = PTR_ERR(o->od_mnt);
7749 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
7753 if (ldiskfs_blocks_count(LDISKFS_SB(osd_sb(o))->s_es) <<
7754 osd_sb(o)->s_blocksize_bits > 1024ULL << 40 &&
7755 force_over_1024tb == 0) {
7756 CERROR("%s: device %s LDISKFS has not been tested on filesystems larger than 1024TB and may cause data corruption. Use 'force_over_1024tb' mount option to override.\n",
7758 GOTO(out_mnt, rc = -EINVAL);
7761 if (lmd_flags & LMD_FLG_DEV_RDONLY) {
7762 LCONSOLE_WARN("%s: not support dev_rdonly on this device",
7765 GOTO(out_mnt, rc = -EOPNOTSUPP);
7768 if (!ldiskfs_has_feature_journal(o->od_mnt->mnt_sb)) {
7769 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
7770 GOTO(out_mnt, rc = -EINVAL);
7773 #ifdef LDISKFS_MOUNT_DIRDATA
7774 if (ldiskfs_has_feature_dirdata(o->od_mnt->mnt_sb))
7775 LDISKFS_SB(osd_sb(o))->s_mount_opt |= LDISKFS_MOUNT_DIRDATA;
7776 else if (strstr(name, "MDT")) /* don't complain for MGT or OSTs */
7777 CWARN("%s: device %s was upgraded from Lustre-1.x without "
7778 "enabling the dirdata feature. If you do not want to "
7779 "downgrade to Lustre-1.x again, you can enable it via "
7780 "'tune2fs -O dirdata device'\n", name, dev);
7782 inode = osd_sb(o)->s_root->d_inode;
7783 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
7784 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
7786 CERROR("%s: failed to set lma on %s root inode\n", name, dev);
7790 if (lmd_flags & LMD_FLG_NOSCRUB)
7791 o->od_auto_scrub_interval = AS_NEVER;
7793 if (blk_queue_nonrot(bdev_get_queue(osd_sb(o)->s_bdev))) {
7794 /* do not use pagecache with flash-backed storage */
7795 o->od_writethrough_cache = 0;
7796 o->od_read_cache = 0;
7807 __free_page(__page);
7812 static struct lu_device *osd_device_fini(const struct lu_env *env,
7813 struct lu_device *d)
7815 struct osd_device *o = osd_dev(d);
7819 osd_index_backup(env, o, false);
7820 osd_shutdown(env, o);
7822 if (o->od_oi_table != NULL)
7823 osd_oi_fini(osd_oti_get(env), o);
7824 osd_obj_map_fini(o);
7830 static int osd_device_init0(const struct lu_env *env,
7831 struct osd_device *o,
7832 struct lustre_cfg *cfg)
7834 struct lu_device *l = osd2lu_dev(o);
7835 struct osd_thread_info *info;
7839 /* if the module was re-loaded, env can loose its keys */
7840 rc = lu_env_refill((struct lu_env *)env);
7843 info = osd_oti_get(env);
7846 l->ld_ops = &osd_lu_ops;
7847 o->od_dt_dev.dd_ops = &osd_dt_ops;
7849 spin_lock_init(&o->od_osfs_lock);
7850 mutex_init(&o->od_otable_mutex);
7851 INIT_LIST_HEAD(&o->od_orphan_list);
7852 INIT_LIST_HEAD(&o->od_index_backup_list);
7853 INIT_LIST_HEAD(&o->od_index_restore_list);
7854 spin_lock_init(&o->od_lock);
7855 o->od_index_backup_policy = LIBP_NONE;
7858 o->od_read_cache = 1;
7859 o->od_writethrough_cache = 1;
7860 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
7861 o->od_readcache_max_iosize = OSD_READCACHE_MAX_IO_MB << 20;
7862 o->od_writethrough_max_iosize = OSD_WRITECACHE_MAX_IO_MB << 20;
7863 o->od_auto_scrub_interval = AS_DEFAULT;
7865 cplen = strlcpy(o->od_svname, lustre_cfg_string(cfg, 4),
7866 sizeof(o->od_svname));
7867 if (cplen >= sizeof(o->od_svname)) {
7872 o->od_index_backup_stop = 0;
7873 o->od_index = -1; /* -1 means index is invalid */
7874 rc = server_name2index(o->od_svname, &o->od_index, NULL);
7875 if (rc == LDD_F_SV_TYPE_OST)
7878 o->od_full_scrub_ratio = OFSR_DEFAULT;
7879 o->od_full_scrub_threshold_rate = FULL_SCRUB_THRESHOLD_RATE_DEFAULT;
7880 rc = osd_mount(env, o, cfg);
7884 /* Can only check block device after mount */
7885 o->od_nonrotational =
7886 blk_queue_nonrot(bdev_get_queue(osd_sb(o)->s_bdev));
7888 rc = osd_obj_map_init(env, o);
7892 rc = lu_site_init(&o->od_site, l);
7894 GOTO(out_compat, rc);
7895 o->od_site.ls_bottom_dev = l;
7897 rc = lu_site_init_finish(&o->od_site);
7901 INIT_LIST_HEAD(&o->od_ios_list);
7902 /* setup scrub, including OI files initialization */
7904 rc = osd_scrub_setup(env, o);
7909 rc = osd_procfs_init(o, o->od_svname);
7911 CERROR("%s: can't initialize procfs: rc = %d\n",
7913 GOTO(out_scrub, rc);
7916 LASSERT(l->ld_site->ls_linkage.next != NULL);
7917 LASSERT(l->ld_site->ls_linkage.prev != NULL);
7919 /* initialize quota slave instance */
7920 /* currently it's no need to prepare qsd_instance_md for OST */
7921 if (!o->od_is_ost) {
7922 o->od_quota_slave_md = qsd_init(env, o->od_svname,
7924 o->od_proc_entry, true);
7925 if (IS_ERR(o->od_quota_slave_md)) {
7926 rc = PTR_ERR(o->od_quota_slave_md);
7927 o->od_quota_slave_md = NULL;
7928 GOTO(out_procfs, rc);
7932 o->od_quota_slave_dt = qsd_init(env, o->od_svname, &o->od_dt_dev,
7933 o->od_proc_entry, false);
7935 if (IS_ERR(o->od_quota_slave_dt)) {
7936 if (o->od_quota_slave_md != NULL) {
7937 qsd_fini(env, o->od_quota_slave_md);
7938 o->od_quota_slave_md = NULL;
7941 rc = PTR_ERR(o->od_quota_slave_dt);
7942 o->od_quota_slave_dt = NULL;
7943 GOTO(out_procfs, rc);
7951 osd_scrub_cleanup(env, o);
7953 lu_site_fini(&o->od_site);
7955 osd_obj_map_fini(o);
7962 static struct lu_device *osd_device_alloc(const struct lu_env *env,
7963 struct lu_device_type *t,
7964 struct lustre_cfg *cfg)
7966 struct osd_device *o;
7971 return ERR_PTR(-ENOMEM);
7973 rc = dt_device_init(&o->od_dt_dev, t);
7976 * Because the ctx might be revived in dt_device_init,
7977 * refill the env here
7979 lu_env_refill((struct lu_env *)env);
7980 rc = osd_device_init0(env, o, cfg);
7982 dt_device_fini(&o->od_dt_dev);
7985 if (unlikely(rc != 0))
7988 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
7991 static struct lu_device *osd_device_free(const struct lu_env *env,
7992 struct lu_device *d)
7994 struct osd_device *o = osd_dev(d);
7998 /* XXX: make osd top device in order to release reference */
7999 d->ld_site->ls_top_dev = d;
8000 lu_site_purge(env, d->ld_site, -1);
8001 lu_site_print(env, d->ld_site, &d->ld_site->ls_obj_hash.nelems,
8002 D_ERROR, lu_cdebug_printer);
8003 lu_site_fini(&o->od_site);
8004 dt_device_fini(&o->od_dt_dev);
8009 static int osd_process_config(const struct lu_env *env,
8010 struct lu_device *d, struct lustre_cfg *cfg)
8012 struct osd_device *o = osd_dev(d);
8018 switch (cfg->lcfg_command) {
8020 rc = osd_mount(env, o, cfg);
8024 * For the case LCFG_PRE_CLEANUP is not called in advance,
8025 * that may happend if hit failure during mount process.
8027 osd_index_backup(env, o, false);
8028 lu_dev_del_linkage(d->ld_site, d);
8029 rc = osd_shutdown(env, o);
8032 LASSERT(&o->od_dt_dev);
8033 count = class_modify_config(cfg, PARAM_OSD,
8034 &o->od_dt_dev.dd_kobj);
8036 count = class_modify_config(cfg, PARAM_OST,
8037 &o->od_dt_dev.dd_kobj);
8038 rc = count > 0 ? 0 : count;
8040 case LCFG_PRE_CLEANUP:
8042 osd_index_backup(env, o,
8043 o->od_index_backup_policy != LIBP_NONE);
8053 static int osd_recovery_complete(const struct lu_env *env,
8054 struct lu_device *d)
8056 struct osd_device *osd = osd_dev(d);
8061 if (osd->od_quota_slave_md == NULL && osd->od_quota_slave_dt == NULL)
8065 * start qsd instance on recovery completion, this notifies the quota
8066 * slave code that we are about to process new requests now
8068 rc = qsd_start(env, osd->od_quota_slave_dt);
8069 if (rc == 0 && osd->od_quota_slave_md != NULL)
8070 rc = qsd_start(env, osd->od_quota_slave_md);
8076 * we use exports to track all osd users
8078 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
8079 struct obd_device *obd, struct obd_uuid *cluuid,
8080 struct obd_connect_data *data, void *localdata)
8082 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8083 struct lustre_handle conn;
8088 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
8090 rc = class_connect(&conn, obd, cluuid);
8094 *exp = class_conn2export(&conn);
8096 spin_lock(&osd->od_osfs_lock);
8098 spin_unlock(&osd->od_osfs_lock);
8104 * once last export (we don't count self-export) disappeared
8105 * osd can be released
8107 static int osd_obd_disconnect(struct obd_export *exp)
8109 struct obd_device *obd = exp->exp_obd;
8110 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8111 int rc, release = 0;
8115 /* Only disconnect the underlying layers on the final disconnect. */
8116 spin_lock(&osd->od_osfs_lock);
8118 if (osd->od_connects == 0)
8120 spin_unlock(&osd->od_osfs_lock);
8122 rc = class_disconnect(exp); /* bz 9811 */
8124 if (rc == 0 && release)
8125 class_manual_cleanup(obd);
8129 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
8130 struct lu_device *dev)
8132 struct osd_device *osd = osd_dev(dev);
8133 struct lr_server_data *lsd =
8134 &osd->od_dt_dev.dd_lu_dev.ld_site->ls_tgt->lut_lsd;
8139 if (osd->od_quota_slave_md != NULL) {
8140 /* set up quota slave objects for inode */
8141 result = qsd_prepare(env, osd->od_quota_slave_md);
8146 if (osd->od_quota_slave_dt != NULL) {
8147 /* set up quota slave objects for block */
8148 result = qsd_prepare(env, osd->od_quota_slave_dt);
8154 if (lsd->lsd_feature_incompat & OBD_COMPAT_OST) {
8155 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
8156 if (lsd->lsd_feature_rocompat & OBD_ROCOMPAT_IDX_IN_IDIF) {
8157 osd->od_index_in_idif = 1;
8159 osd->od_index_in_idif = 0;
8160 result = osd_register_proc_index_in_idif(osd);
8165 osd->od_index_in_idif = 1;
8169 result = osd_fid_init(env, osd);
8175 * Implementation of lu_device_operations::ldo_fid_alloc() for OSD
8179 * see include/lu_object.h for the details.
8181 static int osd_fid_alloc(const struct lu_env *env, struct lu_device *d,
8182 struct lu_fid *fid, struct lu_object *parent,
8183 const struct lu_name *name)
8185 struct osd_device *osd = osd_dev(d);
8187 return seq_client_alloc_fid(env, osd->od_cl_seq, fid);
8190 static const struct lu_object_operations osd_lu_obj_ops = {
8191 .loo_object_init = osd_object_init,
8192 .loo_object_delete = osd_object_delete,
8193 .loo_object_release = osd_object_release,
8194 .loo_object_free = osd_object_free,
8195 .loo_object_print = osd_object_print,
8196 .loo_object_invariant = osd_object_invariant
8199 const struct lu_device_operations osd_lu_ops = {
8200 .ldo_object_alloc = osd_object_alloc,
8201 .ldo_process_config = osd_process_config,
8202 .ldo_recovery_complete = osd_recovery_complete,
8203 .ldo_prepare = osd_prepare,
8204 .ldo_fid_alloc = osd_fid_alloc,
8207 static const struct lu_device_type_operations osd_device_type_ops = {
8208 .ldto_init = osd_type_init,
8209 .ldto_fini = osd_type_fini,
8211 .ldto_start = osd_type_start,
8212 .ldto_stop = osd_type_stop,
8214 .ldto_device_alloc = osd_device_alloc,
8215 .ldto_device_free = osd_device_free,
8217 .ldto_device_init = osd_device_init,
8218 .ldto_device_fini = osd_device_fini
8221 static struct lu_device_type osd_device_type = {
8222 .ldt_tags = LU_DEVICE_DT,
8223 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
8224 .ldt_ops = &osd_device_type_ops,
8225 .ldt_ctx_tags = LCT_LOCAL,
8228 static int osd_health_check(const struct lu_env *env, struct obd_device *obd)
8230 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
8231 struct super_block *sb = osd_sb(osd);
8233 return (osd->od_mnt == NULL || sb->s_flags & SB_RDONLY);
8237 * lprocfs legacy support.
8239 static const struct obd_ops osd_obd_device_ops = {
8240 .o_owner = THIS_MODULE,
8241 .o_connect = osd_obd_connect,
8242 .o_disconnect = osd_obd_disconnect,
8243 .o_health_check = osd_health_check,
8246 static ssize_t track_declares_assert_show(struct kobject *kobj,
8247 struct attribute *attr,
8250 return sprintf(buf, "%d\n", ldiskfs_track_declares_assert);
8253 static ssize_t track_declares_assert_store(struct kobject *kobj,
8254 struct attribute *attr,
8255 const char *buffer, size_t count)
8257 bool track_declares_assert;
8260 rc = kstrtobool(buffer, &track_declares_assert);
8264 ldiskfs_track_declares_assert = track_declares_assert;
8268 LUSTRE_RW_ATTR(track_declares_assert);
8270 static int __init osd_init(void)
8272 struct kobject *kobj;
8275 BUILD_BUG_ON(BH_DXLock >=
8276 sizeof(((struct buffer_head *)0)->b_state) * 8);
8277 #if !defined(CONFIG_DEBUG_MUTEXES) && !defined(CONFIG_DEBUG_SPINLOCK)
8278 /* please, try to keep osd_thread_info smaller than a page */
8279 BUILD_BUG_ON(sizeof(struct osd_thread_info) > PAGE_SIZE);
8284 rc = lu_kmem_init(ldiskfs_caches);
8288 #ifdef CONFIG_KALLSYMS
8289 priv_security_file_alloc =
8290 (void *)kallsyms_lookup_name("security_file_alloc");
8293 rc = class_register_type(&osd_obd_device_ops, NULL, true, NULL,
8294 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
8296 lu_kmem_fini(ldiskfs_caches);
8300 kobj = kset_find_obj(lustre_kset, LUSTRE_OSD_LDISKFS_NAME);
8302 rc = sysfs_create_file(kobj,
8303 &lustre_attr_track_declares_assert.attr);
8306 CWARN("osd-ldiskfs: track_declares_assert failed to register with sysfs\n");
8313 static void __exit osd_exit(void)
8315 struct kobject *kobj;
8317 kobj = kset_find_obj(lustre_kset, LUSTRE_OSD_LDISKFS_NAME);
8319 sysfs_remove_file(kobj,
8320 &lustre_attr_track_declares_assert.attr);
8323 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
8324 lu_kmem_fini(ldiskfs_caches);
8327 MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
8328 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
8329 MODULE_VERSION(LUSTRE_VERSION_STRING);
8330 MODULE_LICENSE("GPL");
8332 module_init(osd_init);
8333 module_exit(osd_exit);