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.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2015, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/osd/osd_handler.c
38 * Top-level entry points into osd module
40 * Author: Nikita Danilov <nikita@clusterfs.com>
41 * Pravin Shelar <pravin.shelar@sun.com> : Added fid in dirent
44 #define DEBUG_SUBSYSTEM S_OSD
46 #include <linux/module.h>
47 #include <linux/user_namespace.h>
48 #ifdef HAVE_UIDGID_HEADER
49 # include <linux/uidgid.h>
52 /* LUSTRE_VERSION_CODE */
53 #include <lustre_ver.h>
54 /* prerequisite for linux/xattr.h */
55 #include <linux/types.h>
56 /* prerequisite for linux/xattr.h */
58 /* XATTR_{REPLACE,CREATE} */
59 #include <linux/xattr.h>
61 #include <ldiskfs/ldiskfs.h>
62 #include <ldiskfs/xattr.h>
63 #include <ldiskfs/ldiskfs_extents.h>
66 * struct OBD_{ALLOC,FREE}*()
69 #include <obd_support.h>
70 /* struct ptlrpc_thread */
71 #include <lustre_net.h>
72 #include <lustre_fid.h>
74 #include <lustre_param.h>
76 #include "osd_internal.h"
77 #include "osd_dynlocks.h"
79 /* llo_* api support */
80 #include <md_object.h>
81 #include <lustre_quota.h>
83 #include <lustre_linkea.h>
86 module_param(ldiskfs_pdo, int, 0644);
87 MODULE_PARM_DESC(ldiskfs_pdo, "ldiskfs with parallel directory operations");
89 int ldiskfs_track_declares_assert;
90 module_param(ldiskfs_track_declares_assert, int, 0644);
91 MODULE_PARM_DESC(ldiskfs_track_declares_assert, "LBUG during tracking of declares");
93 /* Slab to allocate dynlocks */
94 struct kmem_cache *dynlock_cachep;
96 /* Slab to allocate osd_it_ea */
97 struct kmem_cache *osd_itea_cachep;
99 static struct lu_kmem_descr ldiskfs_caches[] = {
101 .ckd_cache = &dynlock_cachep,
102 .ckd_name = "dynlock_cache",
103 .ckd_size = sizeof(struct dynlock_handle)
106 .ckd_cache = &osd_itea_cachep,
107 .ckd_name = "osd_itea_cache",
108 .ckd_size = sizeof(struct osd_it_ea)
115 static const char dot[] = ".";
116 static const char dotdot[] = "..";
117 static const char remote_obj_dir[] = "REM_OBJ_DIR";
119 static const struct lu_object_operations osd_lu_obj_ops;
120 static const struct dt_object_operations osd_obj_ops;
121 static const struct dt_object_operations osd_obj_ea_ops;
122 static const struct dt_object_operations osd_obj_otable_it_ops;
123 static const struct dt_index_operations osd_index_iam_ops;
124 static const struct dt_index_operations osd_index_ea_ops;
126 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
127 const struct lu_fid *fid);
128 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
129 struct osd_device *osd);
131 int osd_trans_declare_op2rb[] = {
132 [OSD_OT_ATTR_SET] = OSD_OT_ATTR_SET,
133 [OSD_OT_PUNCH] = OSD_OT_MAX,
134 [OSD_OT_XATTR_SET] = OSD_OT_XATTR_SET,
135 [OSD_OT_CREATE] = OSD_OT_DESTROY,
136 [OSD_OT_DESTROY] = OSD_OT_CREATE,
137 [OSD_OT_REF_ADD] = OSD_OT_REF_DEL,
138 [OSD_OT_REF_DEL] = OSD_OT_REF_ADD,
139 [OSD_OT_WRITE] = OSD_OT_WRITE,
140 [OSD_OT_INSERT] = OSD_OT_DELETE,
141 [OSD_OT_DELETE] = OSD_OT_INSERT,
142 [OSD_OT_QUOTA] = OSD_OT_MAX,
145 static int osd_has_index(const struct osd_object *obj)
147 return obj->oo_dt.do_index_ops != NULL;
150 static int osd_object_invariant(const struct lu_object *l)
152 return osd_invariant(osd_obj(l));
156 * Concurrency: doesn't matter
160 * Concurrency: doesn't matter
162 static int osd_write_locked(const struct lu_env *env, struct osd_object *o)
164 struct osd_thread_info *oti = osd_oti_get(env);
165 return oti->oti_w_locks > 0 && o->oo_owner == env;
169 * Concurrency: doesn't access mutable data
171 static int osd_root_get(const struct lu_env *env,
172 struct dt_device *dev, struct lu_fid *f)
174 lu_local_obj_fid(f, OSD_FS_ROOT_OID);
179 * the following set of functions are used to maintain per-thread
180 * cache of FID->ino mapping. this mechanism is needed to resolve
181 * FID to inode at dt_insert() which in turn stores ino in the
182 * directory entries to keep ldiskfs compatible with ext[34].
183 * due to locking-originated restrictions we can't lookup ino
184 * using LU cache (deadlock is possible). lookup using OI is quite
185 * expensive. so instead we maintain this cache and methods like
186 * dt_create() fill it. so in the majority of cases dt_insert() is
187 * able to find needed mapping in lockless manner.
189 static struct osd_idmap_cache *
190 osd_idc_find(const struct lu_env *env, struct osd_device *osd,
191 const struct lu_fid *fid)
193 struct osd_thread_info *oti = osd_oti_get(env);
194 struct osd_idmap_cache *idc = oti->oti_ins_cache;
196 for (i = 0; i < oti->oti_ins_cache_used; i++) {
197 if (!lu_fid_eq(&idc[i].oic_fid, fid))
199 if (idc[i].oic_dev != osd)
208 static struct osd_idmap_cache *
209 osd_idc_add(const struct lu_env *env, struct osd_device *osd,
210 const struct lu_fid *fid)
212 struct osd_thread_info *oti = osd_oti_get(env);
213 struct osd_idmap_cache *idc;
216 if (unlikely(oti->oti_ins_cache_used >= oti->oti_ins_cache_size)) {
217 i = oti->oti_ins_cache_size * 2;
219 i = OSD_INS_CACHE_SIZE;
220 OBD_ALLOC(idc, sizeof(*idc) * i);
222 return ERR_PTR(-ENOMEM);
223 if (oti->oti_ins_cache != NULL) {
224 memcpy(idc, oti->oti_ins_cache,
225 oti->oti_ins_cache_used * sizeof(*idc));
226 OBD_FREE(oti->oti_ins_cache,
227 oti->oti_ins_cache_used * sizeof(*idc));
229 oti->oti_ins_cache = idc;
230 oti->oti_ins_cache_size = i;
233 idc = oti->oti_ins_cache + oti->oti_ins_cache_used++;
236 idc->oic_lid.oii_ino = 0;
237 idc->oic_lid.oii_gen = 0;
244 * lookup mapping for the given fid in the cache, initialize a
245 * new one if not found. the initialization checks whether the
246 * object is local or remote. for local objects, OI is used to
247 * learn ino/generation. the function is used when the caller
248 * has no information about the object, e.g. at dt_insert().
250 static struct osd_idmap_cache *
251 osd_idc_find_or_init(const struct lu_env *env, struct osd_device *osd,
252 const struct lu_fid *fid)
254 struct osd_idmap_cache *idc;
257 idc = osd_idc_find(env, osd, fid);
258 LASSERT(!IS_ERR(idc));
262 /* new mapping is needed */
263 idc = osd_idc_add(env, osd, fid);
268 rc = osd_remote_fid(env, osd, fid);
269 if (unlikely(rc < 0))
273 /* the object is local, lookup in OI */
274 /* XXX: probably cheaper to lookup in LU first? */
275 rc = osd_oi_lookup(osd_oti_get(env), osd, fid,
277 if (unlikely(rc < 0)) {
278 CERROR("can't lookup: rc = %d\n", rc);
282 /* the object is remote */
290 * lookup mapping for given FID and fill it from the given object.
291 * the object is lolcal by definition.
293 static int osd_idc_find_and_init(const struct lu_env *env,
294 struct osd_device *osd,
295 struct osd_object *obj)
297 const struct lu_fid *fid = lu_object_fid(&obj->oo_dt.do_lu);
298 struct osd_idmap_cache *idc;
300 idc = osd_idc_find(env, osd, fid);
301 LASSERT(!IS_ERR(idc));
303 if (obj->oo_inode == NULL)
305 if (idc->oic_lid.oii_ino != obj->oo_inode->i_ino) {
306 LASSERT(idc->oic_lid.oii_ino == 0);
307 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
308 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
313 /* new mapping is needed */
314 idc = osd_idc_add(env, osd, fid);
318 if (obj->oo_inode != NULL) {
319 idc->oic_lid.oii_ino = obj->oo_inode->i_ino;
320 idc->oic_lid.oii_gen = obj->oo_inode->i_generation;
326 * OSD object methods.
330 * Concurrency: no concurrent access is possible that early in object
333 static struct lu_object *osd_object_alloc(const struct lu_env *env,
334 const struct lu_object_header *hdr,
337 struct osd_object *mo;
343 l = &mo->oo_dt.do_lu;
344 dt_object_init(&mo->oo_dt, NULL, d);
345 mo->oo_dt.do_ops = &osd_obj_ea_ops;
346 l->lo_ops = &osd_lu_obj_ops;
347 init_rwsem(&mo->oo_sem);
348 init_rwsem(&mo->oo_ext_idx_sem);
349 spin_lock_init(&mo->oo_guard);
356 int osd_get_lma(struct osd_thread_info *info, struct inode *inode,
357 struct dentry *dentry, struct lustre_mdt_attrs *lma)
361 CLASSERT(LMA_OLD_SIZE >= sizeof(*lma));
362 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
363 info->oti_mdt_attrs_old, LMA_OLD_SIZE);
365 if ((void *)lma != (void *)info->oti_mdt_attrs_old)
366 memcpy(lma, info->oti_mdt_attrs_old, sizeof(*lma));
368 lustre_lma_swab(lma);
369 /* Check LMA compatibility */
370 if (lma->lma_incompat & ~LMA_INCOMPAT_SUPP) {
371 CWARN("%.16s: unsupported incompat LMA feature(s) %#x "
372 "for fid = "DFID", ino = %lu\n",
373 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
374 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
375 PFID(&lma->lma_self_fid), inode->i_ino);
378 } else if (rc == 0) {
386 * retrieve object from backend ext fs.
388 struct inode *osd_iget(struct osd_thread_info *info, struct osd_device *dev,
389 struct osd_inode_id *id)
391 struct inode *inode = NULL;
393 /* if we look for an inode withing a running
394 * transaction, then we risk to deadlock */
395 /* osd_dirent_check_repair() breaks this */
396 /*LASSERT(current->journal_info == NULL);*/
398 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
400 CDEBUG(D_INODE, "no inode: ino = %u, rc = %ld\n",
401 id->oii_ino, PTR_ERR(inode));
402 } else if (id->oii_gen != OSD_OII_NOGEN &&
403 inode->i_generation != id->oii_gen) {
404 CDEBUG(D_INODE, "unmatched inode: ino = %u, oii_gen = %u, "
405 "i_generation = %u\n",
406 id->oii_ino, id->oii_gen, inode->i_generation);
408 inode = ERR_PTR(-ESTALE);
409 } else if (inode->i_nlink == 0) {
410 /* due to parallel readdir and unlink,
411 * we can have dead inode here. */
412 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
414 inode = ERR_PTR(-ESTALE);
415 } else if (is_bad_inode(inode)) {
416 CWARN("%.16s: bad inode: ino = %u\n",
417 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name, id->oii_ino);
419 inode = ERR_PTR(-ENOENT);
421 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
422 if (id->oii_gen == OSD_OII_NOGEN)
423 osd_id_gen(id, inode->i_ino, inode->i_generation);
425 /* Do not update file c/mtime in ldiskfs.
426 * NB: we don't have any lock to protect this because we don't
427 * have reference on osd_object now, but contention with
428 * another lookup + attr_set can't happen in the tiny window
429 * between if (...) and set S_NOCMTIME. */
430 if (!(inode->i_flags & S_NOCMTIME))
431 inode->i_flags |= S_NOCMTIME;
436 int osd_ldiskfs_add_entry(struct osd_thread_info *info,
437 handle_t *handle, struct dentry *child,
438 struct inode *inode, struct htree_lock *hlock)
442 rc = __ldiskfs_add_entry(handle, child, inode, hlock);
443 if (rc == -ENOBUFS || rc == -ENOSPC) {
444 char fidbuf[FID_LEN + 1];
445 struct lustre_mdt_attrs lma;
446 struct lu_fid fid = { };
448 struct dentry *p_dentry = child->d_parent;
450 rc2 = osd_get_lma(info, p_dentry->d_inode, p_dentry,
453 fid = lma.lma_self_fid;
454 snprintf(fidbuf, sizeof(fidbuf), DFID, PFID(&fid));
455 } else if (rc2 == -ENODATA) {
456 if (unlikely(p_dentry->d_inode ==
457 inode->i_sb->s_root->d_inode))
458 lu_local_obj_fid(&fid, OSD_FS_ROOT_OID);
459 else if (info->oti_dev && !info->oti_dev->od_is_ost &&
460 fid_seq_is_mdt0(fid_seq(&fid)))
461 lu_igif_build(&fid, p_dentry->d_inode->i_ino,
462 p_dentry->d_inode->i_generation);
463 snprintf(fidbuf, sizeof(fidbuf), DFID, PFID(&fid));
465 snprintf(fidbuf, FID_LEN, "%s", "unknown");
469 errstr = "has reached";
471 errstr = "is approaching";
472 CWARN("%.16s: directory (inode: %lu FID: %s) %s maximum entry limit\n",
473 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
474 p_dentry->d_inode->i_ino, fidbuf, errstr);
475 /* ignore such error now */
483 static struct inode *
484 osd_iget_fid(struct osd_thread_info *info, struct osd_device *dev,
485 struct osd_inode_id *id, struct lu_fid *fid)
487 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
491 inode = osd_iget(info, dev, id);
495 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
497 *fid = lma->lma_self_fid;
498 } else if (rc == -ENODATA) {
499 if (unlikely(inode == osd_sb(dev)->s_root->d_inode))
500 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
502 lu_igif_build(fid, inode->i_ino, inode->i_generation);
510 static struct inode *osd_iget_check(struct osd_thread_info *info,
511 struct osd_device *dev,
512 const struct lu_fid *fid,
513 struct osd_inode_id *id,
520 /* The cached OI mapping is trustable. If we cannot locate the inode
521 * via the cached OI mapping, then return the failure to the caller
522 * directly without further OI checking. */
524 inode = ldiskfs_iget(osd_sb(dev), id->oii_ino);
527 if (cached || (rc != -ENOENT && rc != -ESTALE)) {
528 CDEBUG(D_INODE, "no inode: ino = %u, rc = %d\n",
537 if (is_bad_inode(inode)) {
540 CDEBUG(D_INODE, "bad inode: ino = %u\n", id->oii_ino);
548 if (id->oii_gen != OSD_OII_NOGEN &&
549 inode->i_generation != id->oii_gen) {
552 CDEBUG(D_INODE, "unmatched inode: ino = %u, "
553 "oii_gen = %u, i_generation = %u\n",
554 id->oii_ino, id->oii_gen, inode->i_generation);
562 if (inode->i_nlink == 0) {
565 CDEBUG(D_INODE, "stale inode: ino = %u\n", id->oii_ino);
573 ldiskfs_clear_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
577 LASSERTF(rc == -ESTALE || rc == -ENOENT, "rc = %d\n", rc);
579 rc = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
580 /* XXX: There are four possible cases:
582 * Backup/restore caused the OI invalid.
584 * Someone unlinked the object but NOT removed
585 * the OI mapping, such as mount target device
586 * as ldiskfs, and modify something directly.
588 * Someone just removed the object between the
589 * former oi_lookup and the iget. It is normal.
590 * 4. Other failure cases.
592 * Generally, when the device is mounted, it will
593 * auto check whether the system is restored from
594 * file-level backup or not. We trust such detect
595 * to distinguish the 1st case from the 2nd case. */
597 if (!IS_ERR(inode) && inode->i_generation != 0 &&
598 inode->i_generation == id->oii_gen)
599 /* "id->oii_gen != OSD_OII_NOGEN" is for
600 * "@cached == false" case. */
605 /* If the OI mapping was in OI file before the
606 * osd_iget_check(), but now, it is disappear,
607 * then it must be removed by race. That is a
608 * normal race case. */
611 if (id->oii_gen == OSD_OII_NOGEN)
612 osd_id_gen(id, inode->i_ino, inode->i_generation);
614 /* Do not update file c/mtime in ldiskfs.
615 * NB: we don't have any lock to protect this because we don't
616 * have reference on osd_object now, but contention with
617 * another lookup + attr_set can't happen in the tiny window
618 * between if (...) and set S_NOCMTIME. */
619 if (!(inode->i_flags & S_NOCMTIME))
620 inode->i_flags |= S_NOCMTIME;
637 * \retval +v: new filter_fid, does not contain self-fid
638 * \retval 0: filter_fid_old, contains self-fid
639 * \retval -v: other failure cases
641 int osd_get_idif(struct osd_thread_info *info, struct inode *inode,
642 struct dentry *dentry, struct lu_fid *fid)
644 struct filter_fid_old *ff = &info->oti_ff;
645 struct ost_id *ostid = &info->oti_ostid;
648 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_FID, ff, sizeof(*ff));
649 if (rc == sizeof(*ff)) {
651 ostid_set_seq(ostid, le64_to_cpu(ff->ff_seq));
652 ostid_set_id(ostid, le64_to_cpu(ff->ff_objid));
653 /* XXX: use 0 as the index for compatibility, the caller will
654 * handle index related issues when necessarry. */
655 ostid_to_fid(fid, ostid, 0);
656 } else if (rc == sizeof(struct filter_fid)) {
658 } else if (rc >= 0) {
665 static int osd_lma_self_repair(struct osd_thread_info *info,
666 struct osd_device *osd, struct inode *inode,
667 const struct lu_fid *fid, __u32 compat)
672 LASSERT(current->journal_info == NULL);
674 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC,
675 osd_dto_credits_noquota[DTO_XATTR_SET]);
678 CWARN("%s: cannot start journal for lma_self_repair: rc = %d\n",
683 rc = osd_ea_fid_set(info, inode, fid, compat, 0);
685 CWARN("%s: cannot self repair the LMA: rc = %d\n",
687 ldiskfs_journal_stop(jh);
691 static int osd_check_lma(const struct lu_env *env, struct osd_object *obj)
693 struct osd_thread_info *info = osd_oti_get(env);
694 struct osd_device *osd = osd_obj2dev(obj);
695 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
696 struct inode *inode = obj->oo_inode;
697 struct dentry *dentry = &info->oti_obj_dentry;
698 struct lu_fid *fid = NULL;
699 const struct lu_fid *rfid = lu_object_fid(&obj->oo_dt.do_lu);
703 CLASSERT(LMA_OLD_SIZE >= sizeof(*lma));
704 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LMA,
705 info->oti_mdt_attrs_old, LMA_OLD_SIZE);
706 if (rc == -ENODATA && !fid_is_igif(rfid) && osd->od_check_ff) {
707 fid = &lma->lma_self_fid;
708 rc = osd_get_idif(info, inode, dentry, fid);
709 if ((rc > 0) || (rc == -ENODATA && osd->od_index_in_idif)) {
710 /* For the given OST-object, if it has neither LMA nor
711 * FID in XATTR_NAME_FID, then the given FID (which is
712 * contained in the @obj, from client RPC for locating
713 * the OST-object) is trusted. We use it to generate
715 osd_lma_self_repair(info, osd, inode, rfid,
726 lustre_lma_swab(lma);
727 if (unlikely((lma->lma_incompat & ~LMA_INCOMPAT_SUPP) ||
728 CFS_FAIL_CHECK(OBD_FAIL_OSD_LMA_INCOMPAT))) {
729 CWARN("%s: unsupported incompat LMA feature(s) %#x for "
730 "fid = "DFID", ino = %lu\n", osd_name(osd),
731 lma->lma_incompat & ~LMA_INCOMPAT_SUPP,
732 PFID(rfid), inode->i_ino);
735 fid = &lma->lma_self_fid;
739 if (fid != NULL && unlikely(!lu_fid_eq(rfid, fid))) {
740 if (fid_is_idif(rfid) && fid_is_idif(fid)) {
741 struct ost_id *oi = &info->oti_ostid;
742 struct lu_fid *fid1 = &info->oti_fid3;
743 __u32 idx = fid_idif_ost_idx(rfid);
745 /* For old IDIF, the OST index is not part of the IDIF,
746 * Means that different OSTs may have the same IDIFs.
747 * Under such case, we need to make some compatible
748 * check to make sure to trigger OI scrub properly. */
749 if (idx != 0 && fid_idif_ost_idx(fid) == 0) {
750 /* Given @rfid is new, LMA is old. */
751 fid_to_ostid(fid, oi);
752 ostid_to_fid(fid1, oi, idx);
753 if (lu_fid_eq(fid1, rfid)) {
754 if (osd->od_index_in_idif)
755 osd_lma_self_repair(info, osd,
769 static int osd_fid_lookup(const struct lu_env *env, struct osd_object *obj,
770 const struct lu_fid *fid,
771 const struct lu_object_conf *conf)
773 struct osd_thread_info *info;
774 struct lu_device *ldev = obj->oo_dt.do_lu.lo_dev;
775 struct osd_device *dev;
776 struct osd_idmap_cache *oic;
777 struct osd_inode_id *id;
779 struct osd_scrub *scrub;
780 struct scrub_file *sf;
784 bool triggered = false;
787 LINVRNT(osd_invariant(obj));
788 LASSERT(obj->oo_inode == NULL);
789 LASSERTF(fid_is_sane(fid) || fid_is_idif(fid), DFID"\n", PFID(fid));
792 scrub = &dev->od_scrub;
793 sf = &scrub->os_file;
794 info = osd_oti_get(env);
796 oic = &info->oti_cache;
798 if (OBD_FAIL_CHECK(OBD_FAIL_SRV_ENOENT))
801 /* For the object is created as locking anchor, or for the object to
802 * be created on disk. No need to osd_oi_lookup() at here because FID
803 * shouldn't never be re-used, if it's really a duplicate FID from
804 * unexpected reason, we should be able to detect it later by calling
805 * do_create->osd_oi_insert(). */
806 if (conf != NULL && conf->loc_flags & LOC_F_NEW)
807 GOTO(out, result = 0);
809 /* Search order: 1. per-thread cache. */
810 if (lu_fid_eq(fid, &oic->oic_fid) &&
811 likely(oic->oic_dev == dev)) {
817 if (!list_empty(&scrub->os_inconsistent_items)) {
818 /* Search order: 2. OI scrub pending list. */
819 result = osd_oii_lookup(dev, fid, id);
825 /* Search order: 3. OI files. */
826 result = osd_oi_lookup(info, dev, fid, id, OI_CHECK_FLD);
827 if (result == -ENOENT) {
828 if (!(fid_is_norm(fid) || fid_is_igif(fid)) ||
829 fid_is_on_ost(info, dev, fid, OI_CHECK_FLD) ||
830 !ldiskfs_test_bit(osd_oi_fid2idx(dev,fid),
832 GOTO(out, result = 0);
841 inode = osd_iget_check(info, dev, fid, id, cached);
843 result = PTR_ERR(inode);
844 if (result == -ENOENT || result == -ESTALE)
845 GOTO(out, result = -ENOENT);
847 if (result == -EREMCHG) {
850 if (unlikely(triggered))
851 GOTO(out, result = saved);
854 if (thread_is_running(&scrub->os_thread)) {
855 result = -EINPROGRESS;
856 } else if (!dev->od_noscrub) {
857 result = osd_scrub_start(dev, SS_AUTO_FULL |
858 SS_CLEAR_DRYRUN | SS_CLEAR_FAILOUT);
859 LCONSOLE_WARN("%.16s: trigger OI scrub by RPC "
860 "for "DFID", rc = %d [1]\n",
861 osd_name(dev), PFID(fid), result);
862 if (result == 0 || result == -EALREADY)
863 result = -EINPROGRESS;
870 if (fid_is_on_ost(info, dev, fid, OI_CHECK_FLD))
873 /* We still have chance to get the valid inode: for the
874 * object which is referenced by remote name entry, the
875 * object on the local MDT will be linked under the dir
876 * of "/REMOTE_PARENT_DIR" with its FID string as name.
878 * We do not know whether the object for the given FID
879 * is referenced by some remote name entry or not, and
880 * especially for DNE II, a multiple-linked object may
881 * have many name entries reside on many MDTs.
883 * To simplify the operation, OSD will not distinguish
884 * more, just lookup "/REMOTE_PARENT_DIR". Usually, it
885 * only happened for the RPC from other MDT during the
886 * OI scrub, or for the client side RPC with FID only,
887 * such as FID to path, or from old connected client. */
889 result = osd_lookup_in_remote_parent(info, dev,
902 obj->oo_inode = inode;
903 LASSERT(obj->oo_inode->i_sb == osd_sb(dev));
905 result = osd_check_lma(env, obj);
907 if (result == -ENODATA) {
909 result = osd_oi_lookup(info, dev, fid, id,
912 /* result == -ENOENT means that the OI
913 * mapping has been removed by race,
914 * the target inode belongs to other
917 * Others error also can be returned
920 obj->oo_inode = NULL;
923 /* result == 0 means the cached OI
924 * mapping is still in the OI file,
925 * the target the inode is valid. */
928 /* The current OI mapping is from the OI file,
929 * since the inode has been found via
930 * osd_iget_check(), no need recheck OI. */
937 obj->oo_inode = NULL;
938 if (result != -EREMCHG)
942 result = osd_oi_lookup(info, dev, fid, id,
944 /* result == -ENOENT means the cached OI mapping
945 * has been removed from the OI file by race,
946 * above target inode belongs to other object.
948 * Others error also can be returned directly. */
952 /* result == 0, goto trigger */
954 /* The current OI mapping is from the OI file,
955 * since the inode has been found via
956 * osd_iget_check(), no need recheck OI. */
963 obj->oo_compat_dot_created = 1;
964 obj->oo_compat_dotdot_created = 1;
966 if (!S_ISDIR(inode->i_mode) || !ldiskfs_pdo) /* done */
967 GOTO(out, result = 0);
969 LASSERT(obj->oo_hl_head == NULL);
970 obj->oo_hl_head = ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
971 if (obj->oo_hl_head == NULL) {
972 obj->oo_inode = NULL;
974 GOTO(out, result = -ENOMEM);
976 GOTO(out, result = 0);
979 if (result != 0 && cached)
980 fid_zero(&oic->oic_fid);
982 LINVRNT(osd_invariant(obj));
987 * Concurrency: shouldn't matter.
989 static void osd_object_init0(struct osd_object *obj)
991 LASSERT(obj->oo_inode != NULL);
992 obj->oo_dt.do_body_ops = &osd_body_ops;
993 obj->oo_dt.do_lu.lo_header->loh_attr |=
994 (LOHA_EXISTS | (obj->oo_inode->i_mode & S_IFMT));
998 * Concurrency: no concurrent access is possible that early in object
1001 static int osd_object_init(const struct lu_env *env, struct lu_object *l,
1002 const struct lu_object_conf *conf)
1004 struct osd_object *obj = osd_obj(l);
1007 LINVRNT(osd_invariant(obj));
1009 if (fid_is_otable_it(&l->lo_header->loh_fid)) {
1010 obj->oo_dt.do_ops = &osd_obj_otable_it_ops;
1011 l->lo_header->loh_attr |= LOHA_EXISTS;
1015 result = osd_fid_lookup(env, obj, lu_object_fid(l), conf);
1016 obj->oo_dt.do_body_ops = &osd_body_ops_new;
1017 if (result == 0 && obj->oo_inode != NULL) {
1018 struct osd_thread_info *oti = osd_oti_get(env);
1019 struct lustre_mdt_attrs *lma = &oti->oti_mdt_attrs;
1021 osd_object_init0(obj);
1022 result = osd_get_lma(oti, obj->oo_inode,
1023 &oti->oti_obj_dentry, lma);
1025 /* Convert LMAI flags to lustre LMA flags
1026 * and cache it to oo_lma_flags */
1028 lma_to_lustre_flags(lma->lma_incompat);
1029 } else if (result == -ENODATA) {
1034 LINVRNT(osd_invariant(obj));
1039 * Concurrency: no concurrent access is possible that late in object
1042 static void osd_object_free(const struct lu_env *env, struct lu_object *l)
1044 struct osd_object *obj = osd_obj(l);
1046 LINVRNT(osd_invariant(obj));
1048 dt_object_fini(&obj->oo_dt);
1049 if (obj->oo_hl_head != NULL)
1050 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
1055 * Concurrency: no concurrent access is possible that late in object
1058 static void osd_index_fini(struct osd_object *o)
1060 struct iam_container *bag;
1062 if (o->oo_dir != NULL) {
1063 bag = &o->oo_dir->od_container;
1064 if (o->oo_inode != NULL) {
1065 if (bag->ic_object == o->oo_inode)
1066 iam_container_fini(bag);
1068 OBD_FREE_PTR(o->oo_dir);
1074 * Concurrency: no concurrent access is possible that late in object
1075 * life-cycle (for all existing callers, that is. New callers have to provide
1076 * their own locking.)
1078 static int osd_inode_unlinked(const struct inode *inode)
1080 return inode->i_nlink == 0;
1084 OSD_TXN_OI_DELETE_CREDITS = 20,
1085 OSD_TXN_INODE_DELETE_CREDITS = 20
1092 #if OSD_THANDLE_STATS
1094 * Set time when the handle is allocated
1096 static void osd_th_alloced(struct osd_thandle *oth)
1098 oth->oth_alloced = cfs_time_current();
1102 * Set time when the handle started
1104 static void osd_th_started(struct osd_thandle *oth)
1106 oth->oth_started = cfs_time_current();
1110 * Helper function to convert time interval to microseconds packed in
1113 static long interval_to_usec(cfs_time_t start, cfs_time_t end)
1117 cfs_duration_usec(cfs_time_sub(end, start), &val);
1118 return val.tv_sec * 1000000 + val.tv_usec;
1122 * Check whether the we deal with this handle for too long.
1124 static void __osd_th_check_slow(void *oth, struct osd_device *dev,
1125 cfs_time_t alloced, cfs_time_t started,
1128 cfs_time_t now = cfs_time_current();
1130 LASSERT(dev != NULL);
1132 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_STARTING,
1133 interval_to_usec(alloced, started));
1134 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_OPEN,
1135 interval_to_usec(started, closed));
1136 lprocfs_counter_add(dev->od_stats, LPROC_OSD_THANDLE_CLOSING,
1137 interval_to_usec(closed, now));
1139 if (cfs_time_before(cfs_time_add(alloced, cfs_time_seconds(30)), now)) {
1140 CWARN("transaction handle %p was open for too long: "
1141 "now "CFS_TIME_T" ,"
1142 "alloced "CFS_TIME_T" ,"
1143 "started "CFS_TIME_T" ,"
1144 "closed "CFS_TIME_T"\n",
1145 oth, now, alloced, started, closed);
1146 libcfs_debug_dumpstack(NULL);
1150 #define OSD_CHECK_SLOW_TH(oth, dev, expr) \
1152 cfs_time_t __closed = cfs_time_current(); \
1153 cfs_time_t __alloced = oth->oth_alloced; \
1154 cfs_time_t __started = oth->oth_started; \
1157 __osd_th_check_slow(oth, dev, __alloced, __started, __closed); \
1160 #else /* OSD_THANDLE_STATS */
1162 #define osd_th_alloced(h) do {} while(0)
1163 #define osd_th_started(h) do {} while(0)
1164 #define OSD_CHECK_SLOW_TH(oth, dev, expr) expr
1166 #endif /* OSD_THANDLE_STATS */
1169 * Concurrency: doesn't access mutable data.
1171 static int osd_param_is_not_sane(const struct osd_device *dev,
1172 const struct thandle *th)
1174 struct osd_thandle *oh = container_of(th, typeof(*oh), ot_super);
1176 return oh->ot_credits > osd_transaction_size(dev);
1180 * Concurrency: shouldn't matter.
1182 static void osd_trans_commit_cb(struct super_block *sb,
1183 struct ldiskfs_journal_cb_entry *jcb, int error)
1185 struct osd_thandle *oh = container_of0(jcb, struct osd_thandle, ot_jcb);
1186 struct thandle *th = &oh->ot_super;
1187 struct lu_device *lud = &th->th_dev->dd_lu_dev;
1188 struct dt_txn_commit_cb *dcb, *tmp;
1190 LASSERT(oh->ot_handle == NULL);
1193 CERROR("transaction @0x%p commit error: %d\n", th, error);
1195 dt_txn_hook_commit(th);
1197 /* call per-transaction callbacks if any */
1198 list_for_each_entry_safe(dcb, tmp, &oh->ot_commit_dcb_list,
1200 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1201 "commit callback entry: magic=%x name='%s'\n",
1202 dcb->dcb_magic, dcb->dcb_name);
1203 list_del_init(&dcb->dcb_linkage);
1204 dcb->dcb_func(NULL, th, dcb, error);
1207 lu_ref_del_at(&lud->ld_reference, &oh->ot_dev_link, "osd-tx", th);
1211 lu_context_exit(&th->th_ctx);
1212 lu_context_fini(&th->th_ctx);
1216 static struct thandle *osd_trans_create(const struct lu_env *env,
1217 struct dt_device *d)
1219 struct osd_thread_info *oti = osd_oti_get(env);
1220 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1221 struct osd_thandle *oh;
1225 /* on pending IO in this thread should left from prev. request */
1226 LASSERT(atomic_read(&iobuf->dr_numreqs) == 0);
1228 th = ERR_PTR(-ENOMEM);
1229 OBD_ALLOC_GFP(oh, sizeof *oh, GFP_NOFS);
1231 oh->ot_quota_trans = &oti->oti_quota_trans;
1232 memset(oh->ot_quota_trans, 0, sizeof(*oh->ot_quota_trans));
1236 th->th_tags = LCT_TX_HANDLE;
1238 INIT_LIST_HEAD(&oh->ot_commit_dcb_list);
1239 INIT_LIST_HEAD(&oh->ot_stop_dcb_list);
1242 memset(oti->oti_declare_ops, 0,
1243 sizeof(oti->oti_declare_ops));
1244 memset(oti->oti_declare_ops_cred, 0,
1245 sizeof(oti->oti_declare_ops_cred));
1246 memset(oti->oti_declare_ops_used, 0,
1247 sizeof(oti->oti_declare_ops_used));
1252 void osd_trans_dump_creds(const struct lu_env *env, struct thandle *th)
1254 struct osd_thread_info *oti = osd_oti_get(env);
1255 struct osd_thandle *oh;
1257 oh = container_of0(th, struct osd_thandle, ot_super);
1258 LASSERT(oh != NULL);
1260 CWARN(" create: %u/%u/%u, destroy: %u/%u/%u\n",
1261 oti->oti_declare_ops[OSD_OT_CREATE],
1262 oti->oti_declare_ops_cred[OSD_OT_CREATE],
1263 oti->oti_declare_ops_used[OSD_OT_CREATE],
1264 oti->oti_declare_ops[OSD_OT_DESTROY],
1265 oti->oti_declare_ops_cred[OSD_OT_DESTROY],
1266 oti->oti_declare_ops_used[OSD_OT_DESTROY]);
1267 CWARN(" attr_set: %u/%u/%u, xattr_set: %u/%u/%u\n",
1268 oti->oti_declare_ops[OSD_OT_ATTR_SET],
1269 oti->oti_declare_ops_cred[OSD_OT_ATTR_SET],
1270 oti->oti_declare_ops_used[OSD_OT_ATTR_SET],
1271 oti->oti_declare_ops[OSD_OT_XATTR_SET],
1272 oti->oti_declare_ops_cred[OSD_OT_XATTR_SET],
1273 oti->oti_declare_ops_used[OSD_OT_XATTR_SET]);
1274 CWARN(" write: %u/%u/%u, punch: %u/%u/%u, quota %u/%u/%u\n",
1275 oti->oti_declare_ops[OSD_OT_WRITE],
1276 oti->oti_declare_ops_cred[OSD_OT_WRITE],
1277 oti->oti_declare_ops_used[OSD_OT_WRITE],
1278 oti->oti_declare_ops[OSD_OT_PUNCH],
1279 oti->oti_declare_ops_cred[OSD_OT_PUNCH],
1280 oti->oti_declare_ops_used[OSD_OT_PUNCH],
1281 oti->oti_declare_ops[OSD_OT_QUOTA],
1282 oti->oti_declare_ops_cred[OSD_OT_QUOTA],
1283 oti->oti_declare_ops_used[OSD_OT_QUOTA]);
1284 CWARN(" insert: %u/%u/%u, delete: %u/%u/%u\n",
1285 oti->oti_declare_ops[OSD_OT_INSERT],
1286 oti->oti_declare_ops_cred[OSD_OT_INSERT],
1287 oti->oti_declare_ops_used[OSD_OT_INSERT],
1288 oti->oti_declare_ops[OSD_OT_DELETE],
1289 oti->oti_declare_ops_cred[OSD_OT_DELETE],
1290 oti->oti_declare_ops_used[OSD_OT_DELETE]);
1291 CWARN(" ref_add: %u/%u/%u, ref_del: %u/%u/%u\n",
1292 oti->oti_declare_ops[OSD_OT_REF_ADD],
1293 oti->oti_declare_ops_cred[OSD_OT_REF_ADD],
1294 oti->oti_declare_ops_used[OSD_OT_REF_ADD],
1295 oti->oti_declare_ops[OSD_OT_REF_DEL],
1296 oti->oti_declare_ops_cred[OSD_OT_REF_DEL],
1297 oti->oti_declare_ops_used[OSD_OT_REF_DEL]);
1301 * Concurrency: shouldn't matter.
1303 static int osd_trans_start(const struct lu_env *env, struct dt_device *d,
1306 struct osd_thread_info *oti = osd_oti_get(env);
1307 struct osd_device *dev = osd_dt_dev(d);
1309 struct osd_thandle *oh;
1314 LASSERT(current->journal_info == NULL);
1316 oh = container_of0(th, struct osd_thandle, ot_super);
1317 LASSERT(oh != NULL);
1318 LASSERT(oh->ot_handle == NULL);
1320 rc = dt_txn_hook_start(env, d, th);
1324 if (unlikely(osd_param_is_not_sane(dev, th))) {
1325 static unsigned long last_printed;
1326 static int last_credits;
1328 /* don't make noise on a tiny testing systems
1329 * actual credits misuse will be caught anyway */
1330 if (last_credits != oh->ot_credits &&
1331 time_after(jiffies, last_printed +
1332 msecs_to_jiffies(60 * MSEC_PER_SEC)) &&
1333 osd_transaction_size(dev) > 512) {
1334 osd_trans_dump_creds(env, th);
1335 libcfs_debug_dumpstack(NULL);
1336 last_credits = oh->ot_credits;
1337 last_printed = jiffies;
1339 /* XXX Limit the credits to 'max_transaction_buffers', and
1340 * let the underlying filesystem to catch the error if
1341 * we really need so many credits.
1343 * This should be removed when we can calculate the
1344 * credits precisely. */
1345 oh->ot_credits = osd_transaction_size(dev);
1349 * XXX temporary stuff. Some abstraction layer should
1352 jh = osd_journal_start_sb(osd_sb(dev), LDISKFS_HT_MISC, oh->ot_credits);
1356 LASSERT(oti->oti_txns == 0);
1357 lu_context_init(&th->th_ctx, th->th_tags);
1358 lu_context_enter(&th->th_ctx);
1360 lu_device_get(&d->dd_lu_dev);
1361 lu_ref_add_at(&d->dd_lu_dev.ld_reference, &oh->ot_dev_link,
1372 static int osd_seq_exists(const struct lu_env *env,
1373 struct osd_device *osd, u64 seq)
1375 struct lu_seq_range *range = &osd_oti_get(env)->oti_seq_range;
1376 struct seq_server_site *ss = osd_seq_site(osd);
1380 LASSERT(ss != NULL);
1381 LASSERT(ss->ss_server_fld != NULL);
1383 rc = osd_fld_lookup(env, osd, seq, range);
1386 CERROR("%s: can't lookup FLD sequence "LPX64
1387 ": rc = %d\n", osd_name(osd), seq, rc);
1391 RETURN(ss->ss_node_id == range->lsr_index);
1394 static void osd_trans_stop_cb(struct osd_thandle *oth, int result)
1396 struct dt_txn_commit_cb *dcb;
1397 struct dt_txn_commit_cb *tmp;
1399 /* call per-transaction stop callbacks if any */
1400 list_for_each_entry_safe(dcb, tmp, &oth->ot_stop_dcb_list,
1402 LASSERTF(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC,
1403 "commit callback entry: magic=%x name='%s'\n",
1404 dcb->dcb_magic, dcb->dcb_name);
1405 list_del_init(&dcb->dcb_linkage);
1406 dcb->dcb_func(NULL, &oth->ot_super, dcb, result);
1411 * Concurrency: shouldn't matter.
1413 static int osd_trans_stop(const struct lu_env *env, struct dt_device *dt,
1416 int rc = 0, remove_agents = 0;
1417 struct osd_thandle *oh;
1418 struct osd_thread_info *oti = osd_oti_get(env);
1419 struct osd_iobuf *iobuf = &oti->oti_iobuf;
1420 struct osd_device *osd = osd_dt_dev(th->th_dev);
1421 struct qsd_instance *qsd = osd->od_quota_slave;
1422 struct lquota_trans *qtrans;
1425 oh = container_of0(th, struct osd_thandle, ot_super);
1427 /* reset OI cache for safety */
1428 oti->oti_ins_cache_used = 0;
1430 remove_agents = oh->ot_remove_agents;
1432 qtrans = oh->ot_quota_trans;
1433 oh->ot_quota_trans = NULL;
1435 if (oh->ot_handle != NULL) {
1436 handle_t *hdl = oh->ot_handle;
1439 * add commit callback
1440 * notice we don't do this in osd_trans_start()
1441 * as underlying transaction can change during truncate
1443 ldiskfs_journal_callback_add(hdl, osd_trans_commit_cb,
1446 LASSERT(oti->oti_txns == 1);
1449 rc = dt_txn_hook_stop(env, th);
1451 CERROR("%s: failed in transaction hook: rc = %d\n",
1454 osd_trans_stop_cb(oh, rc);
1455 /* hook functions might modify th_sync */
1456 hdl->h_sync = th->th_sync;
1458 oh->ot_handle = NULL;
1459 OSD_CHECK_SLOW_TH(oh, osd, rc = ldiskfs_journal_stop(hdl));
1461 CERROR("%s: failed to stop transaction: rc = %d\n",
1464 osd_trans_stop_cb(oh, th->th_result);
1468 /* inform the quota slave device that the transaction is stopping */
1469 qsd_op_end(env, qsd, qtrans);
1471 /* as we want IO to journal and data IO be concurrent, we don't block
1472 * awaiting data IO completion in osd_do_bio(), instead we wait here
1473 * once transaction is submitted to the journal. all reqular requests
1474 * don't do direct IO (except read/write), thus this wait_event becomes
1477 * IMPORTANT: we have to wait till any IO submited by the thread is
1478 * completed otherwise iobuf may be corrupted by different request
1480 wait_event(iobuf->dr_wait,
1481 atomic_read(&iobuf->dr_numreqs) == 0);
1482 osd_fini_iobuf(osd, iobuf);
1484 rc = iobuf->dr_error;
1486 if (unlikely(remove_agents != 0))
1487 osd_process_scheduled_agent_removals(env, osd);
1492 static int osd_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb)
1494 struct osd_thandle *oh = container_of0(th, struct osd_thandle,
1497 LASSERT(dcb->dcb_magic == TRANS_COMMIT_CB_MAGIC);
1498 LASSERT(&dcb->dcb_func != NULL);
1499 if (dcb->dcb_flags & DCB_TRANS_STOP)
1500 list_add(&dcb->dcb_linkage, &oh->ot_stop_dcb_list);
1502 list_add(&dcb->dcb_linkage, &oh->ot_commit_dcb_list);
1508 * Called just before object is freed. Releases all resources except for
1509 * object itself (that is released by osd_object_free()).
1511 * Concurrency: no concurrent access is possible that late in object
1514 static void osd_object_delete(const struct lu_env *env, struct lu_object *l)
1516 struct osd_object *obj = osd_obj(l);
1517 struct inode *inode = obj->oo_inode;
1519 LINVRNT(osd_invariant(obj));
1522 * If object is unlinked remove fid->ino mapping from object index.
1525 osd_index_fini(obj);
1526 if (inode != NULL) {
1527 struct qsd_instance *qsd = osd_obj2dev(obj)->od_quota_slave;
1528 qid_t uid = i_uid_read(inode);
1529 qid_t gid = i_gid_read(inode);
1532 obj->oo_inode = NULL;
1535 struct osd_thread_info *info = osd_oti_get(env);
1536 struct lquota_id_info *qi = &info->oti_qi;
1538 /* Release granted quota to master if necessary */
1539 qi->lqi_id.qid_uid = uid;
1540 qsd_op_adjust(env, qsd, &qi->lqi_id, USRQUOTA);
1542 qi->lqi_id.qid_uid = gid;
1543 qsd_op_adjust(env, qsd, &qi->lqi_id, GRPQUOTA);
1549 * Concurrency: ->loo_object_release() is called under site spin-lock.
1551 static void osd_object_release(const struct lu_env *env,
1552 struct lu_object *l)
1554 struct osd_object *o = osd_obj(l);
1555 /* nobody should be releasing a non-destroyed object with nlink=0
1556 * the API allows this, but ldiskfs doesn't like and then report
1557 * this inode as deleted */
1558 if (unlikely(!o->oo_destroyed && o->oo_inode && o->oo_inode->i_nlink == 0))
1563 * Concurrency: shouldn't matter.
1565 static int osd_object_print(const struct lu_env *env, void *cookie,
1566 lu_printer_t p, const struct lu_object *l)
1568 struct osd_object *o = osd_obj(l);
1569 struct iam_descr *d;
1571 if (o->oo_dir != NULL)
1572 d = o->oo_dir->od_container.ic_descr;
1575 return (*p)(env, cookie,
1576 LUSTRE_OSD_LDISKFS_NAME"-object@%p(i:%p:%lu/%u)[%s]",
1578 o->oo_inode ? o->oo_inode->i_ino : 0UL,
1579 o->oo_inode ? o->oo_inode->i_generation : 0,
1580 d ? d->id_ops->id_name : "plain");
1584 * Concurrency: shouldn't matter.
1586 int osd_statfs(const struct lu_env *env, struct dt_device *d,
1587 struct obd_statfs *sfs)
1589 struct osd_device *osd = osd_dt_dev(d);
1590 struct super_block *sb = osd_sb(osd);
1591 struct kstatfs *ksfs;
1595 if (unlikely(osd->od_mnt == NULL))
1596 return -EINPROGRESS;
1598 /* osd_lproc.c call this without env, allocate ksfs for that case */
1599 if (unlikely(env == NULL)) {
1600 OBD_ALLOC_PTR(ksfs);
1604 ksfs = &osd_oti_get(env)->oti_ksfs;
1607 result = sb->s_op->statfs(sb->s_root, ksfs);
1611 statfs_pack(sfs, ksfs);
1612 if (unlikely(sb->s_flags & MS_RDONLY))
1613 sfs->os_state = OS_STATE_READONLY;
1614 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb,
1615 LDISKFS_FEATURE_INCOMPAT_EXTENTS))
1616 sfs->os_maxbytes = sb->s_maxbytes;
1618 sfs->os_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
1621 * Reserve some space so to avoid fragmenting the filesystem too much.
1622 * Fragmentation not only impacts performance, but can also increase
1623 * metadata overhead significantly, causing grant calculation to be
1626 * Reserve 0.78% of total space, at least 8MB for small filesystems.
1628 CLASSERT(OSD_STATFS_RESERVED > LDISKFS_MAX_BLOCK_SIZE);
1629 reserved = OSD_STATFS_RESERVED >> sb->s_blocksize_bits;
1630 if (likely(sfs->os_blocks >= reserved << OSD_STATFS_RESERVED_SHIFT))
1631 reserved = sfs->os_blocks >> OSD_STATFS_RESERVED_SHIFT;
1633 sfs->os_blocks -= reserved;
1634 sfs->os_bfree -= min(reserved, sfs->os_bfree);
1635 sfs->os_bavail -= min(reserved, sfs->os_bavail);
1638 if (unlikely(env == NULL))
1644 * Estimate space needed for file creations. We assume the largest filename
1645 * which is 2^64 - 1, hence a filename of 20 chars.
1646 * This is 28 bytes per object which is 28MB for 1M objects ... no so bad.
1648 #ifdef __LDISKFS_DIR_REC_LEN
1649 #define PER_OBJ_USAGE __LDISKFS_DIR_REC_LEN(20)
1651 #define PER_OBJ_USAGE LDISKFS_DIR_REC_LEN(20)
1655 * Concurrency: doesn't access mutable data.
1657 static void osd_conf_get(const struct lu_env *env,
1658 const struct dt_device *dev,
1659 struct dt_device_param *param)
1661 struct super_block *sb = osd_sb(osd_dt_dev(dev));
1665 * XXX should be taken from not-yet-existing fs abstraction layer.
1667 param->ddp_max_name_len = LDISKFS_NAME_LEN;
1668 param->ddp_max_nlink = LDISKFS_LINK_MAX;
1669 param->ddp_symlink_max = sb->s_blocksize;
1670 param->ddp_mount_type = LDD_MT_LDISKFS;
1671 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EXTENTS))
1672 param->ddp_maxbytes = sb->s_maxbytes;
1674 param->ddp_maxbytes = LDISKFS_SB(sb)->s_bitmap_maxbytes;
1675 /* inode are statically allocated, so per-inode space consumption
1676 * is the space consumed by the directory entry */
1677 param->ddp_inodespace = PER_OBJ_USAGE;
1678 /* EXT_INIT_MAX_LEN is the theoretical maximum extent size (32k blocks
1679 * = 128MB) which is unlikely to be hit in real life. Report a smaller
1680 * maximum length to not under count the actual number of extents
1681 * needed for writing a file. */
1682 param->ddp_max_extent_blks = EXT_INIT_MAX_LEN >> 2;
1683 /* worst-case extent insertion metadata overhead */
1684 param->ddp_extent_tax = 6 * LDISKFS_BLOCK_SIZE(sb);
1685 param->ddp_mntopts = 0;
1686 if (test_opt(sb, XATTR_USER))
1687 param->ddp_mntopts |= MNTOPT_USERXATTR;
1688 if (test_opt(sb, POSIX_ACL))
1689 param->ddp_mntopts |= MNTOPT_ACL;
1691 /* LOD might calculate the max stripe count based on max_ea_size,
1692 * so we need take account in the overhead as well,
1693 * xattr_header + magic + xattr_entry_head */
1694 ea_overhead = sizeof(struct ldiskfs_xattr_header) + sizeof(__u32) +
1695 LDISKFS_XATTR_LEN(XATTR_NAME_MAX_LEN);
1697 #if defined(LDISKFS_FEATURE_INCOMPAT_EA_INODE)
1698 if (LDISKFS_HAS_INCOMPAT_FEATURE(sb, LDISKFS_FEATURE_INCOMPAT_EA_INODE))
1699 param->ddp_max_ea_size = LDISKFS_XATTR_MAX_LARGE_EA_SIZE -
1703 param->ddp_max_ea_size = sb->s_blocksize - ea_overhead;
1707 * Concurrency: shouldn't matter.
1709 static int osd_sync(const struct lu_env *env, struct dt_device *d)
1713 CDEBUG(D_CACHE, "syncing OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
1715 rc = ldiskfs_force_commit(osd_sb(osd_dt_dev(d)));
1717 CDEBUG(D_CACHE, "synced OSD %s: rc = %d\n",
1718 LUSTRE_OSD_LDISKFS_NAME, rc);
1724 * Start commit for OSD device.
1726 * An implementation of dt_commit_async method for OSD device.
1727 * Asychronously starts underlayng fs sync and thereby a transaction
1730 * \param env environment
1731 * \param d dt device
1733 * \see dt_device_operations
1735 static int osd_commit_async(const struct lu_env *env,
1736 struct dt_device *d)
1738 struct super_block *s = osd_sb(osd_dt_dev(d));
1741 CDEBUG(D_HA, "async commit OSD %s\n", LUSTRE_OSD_LDISKFS_NAME);
1742 RETURN(s->s_op->sync_fs(s, 0));
1746 * Concurrency: shouldn't matter.
1749 static int osd_ro(const struct lu_env *env, struct dt_device *d)
1751 struct super_block *sb = osd_sb(osd_dt_dev(d));
1752 struct block_device *dev = sb->s_bdev;
1753 #ifdef HAVE_DEV_SET_RDONLY
1754 struct block_device *jdev = LDISKFS_SB(sb)->journal_bdev;
1757 int rc = -EOPNOTSUPP;
1761 #ifdef HAVE_DEV_SET_RDONLY
1762 CERROR("*** setting %s read-only ***\n", osd_dt_dev(d)->od_svname);
1764 if (jdev && (jdev != dev)) {
1765 CDEBUG(D_IOCTL | D_HA, "set journal dev %lx rdonly\n",
1767 dev_set_rdonly(jdev);
1769 CDEBUG(D_IOCTL | D_HA, "set dev %lx rdonly\n", (long)dev);
1770 dev_set_rdonly(dev);
1772 CERROR("%s: %lx CANNOT BE SET READONLY: rc = %d\n",
1773 osd_dt_dev(d)->od_svname, (long)dev, rc);
1779 * Note: we do not count into QUOTA here.
1780 * If we mount with --data_journal we may need more.
1782 const int osd_dto_credits_noquota[DTO_NR] = {
1785 * INDEX_EXTRA_TRANS_BLOCKS(8) +
1786 * SINGLEDATA_TRANS_BLOCKS(8)
1787 * XXX Note: maybe iam need more, since iam have more level than
1790 [DTO_INDEX_INSERT] = 16,
1793 * just modify a single entry, probably merge few within a block
1795 [DTO_INDEX_DELETE] = 1,
1799 [DTO_INDEX_UPDATE] = 16,
1801 * 4(inode, inode bits, groups, GDT)
1802 * notice: OI updates are counted separately with DTO_INDEX_INSERT
1804 [DTO_OBJECT_CREATE] = 4,
1806 * 4(inode, inode bits, groups, GDT)
1807 * notice: OI updates are counted separately with DTO_INDEX_DELETE
1809 [DTO_OBJECT_DELETE] = 4,
1811 * Attr set credits (inode)
1813 [DTO_ATTR_SET_BASE] = 1,
1815 * Xattr set. The same as xattr of EXT3.
1816 * DATA_TRANS_BLOCKS(14)
1817 * XXX Note: in original MDS implmentation INDEX_EXTRA_TRANS_BLOCKS
1818 * are also counted in. Do not know why?
1820 [DTO_XATTR_SET] = 14,
1822 * credits for inode change during write.
1824 [DTO_WRITE_BASE] = 3,
1826 * credits for single block write.
1828 [DTO_WRITE_BLOCK] = 14,
1830 * Attr set credits for chown.
1831 * This is extra credits for setattr, and it is null without quota
1833 [DTO_ATTR_SET_CHOWN] = 0
1836 static const struct dt_device_operations osd_dt_ops = {
1837 .dt_root_get = osd_root_get,
1838 .dt_statfs = osd_statfs,
1839 .dt_trans_create = osd_trans_create,
1840 .dt_trans_start = osd_trans_start,
1841 .dt_trans_stop = osd_trans_stop,
1842 .dt_trans_cb_add = osd_trans_cb_add,
1843 .dt_conf_get = osd_conf_get,
1844 .dt_sync = osd_sync,
1846 .dt_commit_async = osd_commit_async,
1849 static void osd_object_read_lock(const struct lu_env *env,
1850 struct dt_object *dt, unsigned role)
1852 struct osd_object *obj = osd_dt_obj(dt);
1853 struct osd_thread_info *oti = osd_oti_get(env);
1855 LINVRNT(osd_invariant(obj));
1857 LASSERT(obj->oo_owner != env);
1858 down_read_nested(&obj->oo_sem, role);
1860 LASSERT(obj->oo_owner == NULL);
1864 static void osd_object_write_lock(const struct lu_env *env,
1865 struct dt_object *dt, unsigned role)
1867 struct osd_object *obj = osd_dt_obj(dt);
1868 struct osd_thread_info *oti = osd_oti_get(env);
1870 LINVRNT(osd_invariant(obj));
1872 LASSERT(obj->oo_owner != env);
1873 down_write_nested(&obj->oo_sem, role);
1875 LASSERT(obj->oo_owner == NULL);
1876 obj->oo_owner = env;
1880 static void osd_object_read_unlock(const struct lu_env *env,
1881 struct dt_object *dt)
1883 struct osd_object *obj = osd_dt_obj(dt);
1884 struct osd_thread_info *oti = osd_oti_get(env);
1886 LINVRNT(osd_invariant(obj));
1888 LASSERT(oti->oti_r_locks > 0);
1890 up_read(&obj->oo_sem);
1893 static void osd_object_write_unlock(const struct lu_env *env,
1894 struct dt_object *dt)
1896 struct osd_object *obj = osd_dt_obj(dt);
1897 struct osd_thread_info *oti = osd_oti_get(env);
1899 LINVRNT(osd_invariant(obj));
1901 LASSERT(obj->oo_owner == env);
1902 LASSERT(oti->oti_w_locks > 0);
1904 obj->oo_owner = NULL;
1905 up_write(&obj->oo_sem);
1908 static int osd_object_write_locked(const struct lu_env *env,
1909 struct dt_object *dt)
1911 struct osd_object *obj = osd_dt_obj(dt);
1913 LINVRNT(osd_invariant(obj));
1915 return obj->oo_owner == env;
1918 static struct timespec *osd_inode_time(const struct lu_env *env,
1919 struct inode *inode, __u64 seconds)
1921 struct osd_thread_info *oti = osd_oti_get(env);
1922 struct timespec *t = &oti->oti_time;
1924 t->tv_sec = seconds;
1926 *t = timespec_trunc(*t, inode->i_sb->s_time_gran);
1930 static void osd_inode_getattr(const struct lu_env *env,
1931 struct inode *inode, struct lu_attr *attr)
1933 attr->la_valid |= LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
1934 LA_SIZE | LA_BLOCKS | LA_UID | LA_GID |
1935 LA_FLAGS | LA_NLINK | LA_RDEV | LA_BLKSIZE |
1938 attr->la_atime = LTIME_S(inode->i_atime);
1939 attr->la_mtime = LTIME_S(inode->i_mtime);
1940 attr->la_ctime = LTIME_S(inode->i_ctime);
1941 attr->la_mode = inode->i_mode;
1942 attr->la_size = i_size_read(inode);
1943 attr->la_blocks = inode->i_blocks;
1944 attr->la_uid = i_uid_read(inode);
1945 attr->la_gid = i_gid_read(inode);
1946 attr->la_flags = ll_inode_to_ext_flags(inode->i_flags);
1947 attr->la_nlink = inode->i_nlink;
1948 attr->la_rdev = inode->i_rdev;
1949 attr->la_blksize = 1 << inode->i_blkbits;
1950 attr->la_blkbits = inode->i_blkbits;
1953 static int osd_attr_get(const struct lu_env *env,
1954 struct dt_object *dt,
1955 struct lu_attr *attr)
1957 struct osd_object *obj = osd_dt_obj(dt);
1959 if (unlikely(!dt_object_exists(dt)))
1961 if (unlikely(obj->oo_destroyed))
1964 LASSERT(!dt_object_remote(dt));
1965 LINVRNT(osd_invariant(obj));
1967 spin_lock(&obj->oo_guard);
1968 osd_inode_getattr(env, obj->oo_inode, attr);
1969 if (obj->oo_lma_flags & LUSTRE_ORPHAN_FL)
1970 attr->la_flags |= LUSTRE_ORPHAN_FL;
1971 spin_unlock(&obj->oo_guard);
1976 static int osd_declare_attr_set(const struct lu_env *env,
1977 struct dt_object *dt,
1978 const struct lu_attr *attr,
1979 struct thandle *handle)
1981 struct osd_thandle *oh;
1982 struct osd_object *obj;
1983 struct osd_thread_info *info = osd_oti_get(env);
1984 struct lquota_id_info *qi = &info->oti_qi;
1992 LASSERT(dt != NULL);
1993 LASSERT(handle != NULL);
1995 obj = osd_dt_obj(dt);
1996 LASSERT(osd_invariant(obj));
1998 oh = container_of0(handle, struct osd_thandle, ot_super);
1999 LASSERT(oh->ot_handle == NULL);
2001 osd_trans_declare_op(env, oh, OSD_OT_ATTR_SET,
2002 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
2004 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
2005 osd_dto_credits_noquota[DTO_XATTR_SET]);
2007 if (attr == NULL || obj->oo_inode == NULL)
2010 bspace = obj->oo_inode->i_blocks;
2011 bspace <<= obj->oo_inode->i_sb->s_blocksize_bits;
2012 bspace = toqb(bspace);
2014 /* Changing ownership is always preformed by super user, it should not
2017 * We still need to call the osd_declare_qid() to calculate the journal
2018 * credits for updating quota accounting files and to trigger quota
2019 * space adjustment once the operation is completed.*/
2020 if (attr->la_valid & LA_UID || attr->la_valid & LA_GID) {
2022 uid = i_uid_read(obj->oo_inode);
2023 qi->lqi_type = USRQUOTA;
2024 enforce = (attr->la_valid & LA_UID) && (attr->la_uid != uid);
2025 /* inode accounting */
2026 qi->lqi_is_blk = false;
2028 /* one more inode for the new uid ... */
2029 qi->lqi_id.qid_uid = attr->la_uid;
2031 /* Reserve credits for the new uid */
2032 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
2033 if (rc == -EDQUOT || rc == -EINPROGRESS)
2038 /* and one less inode for the current uid */
2039 qi->lqi_id.qid_uid = uid;
2041 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2042 if (rc == -EDQUOT || rc == -EINPROGRESS)
2047 /* block accounting */
2048 qi->lqi_is_blk = true;
2050 /* more blocks for the new uid ... */
2051 qi->lqi_id.qid_uid = attr->la_uid;
2052 qi->lqi_space = bspace;
2054 * Credits for the new uid has been reserved, re-use "obj"
2055 * to save credit reservation.
2057 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2058 if (rc == -EDQUOT || rc == -EINPROGRESS)
2063 /* and finally less blocks for the current uid */
2064 qi->lqi_id.qid_uid = uid;
2065 qi->lqi_space = -bspace;
2066 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2067 if (rc == -EDQUOT || rc == -EINPROGRESS)
2073 gid = i_gid_read(obj->oo_inode);
2074 qi->lqi_type = GRPQUOTA;
2075 enforce = (attr->la_valid & LA_GID) && (attr->la_gid != gid);
2077 /* inode accounting */
2078 qi->lqi_is_blk = false;
2080 /* one more inode for the new gid ... */
2081 qi->lqi_id.qid_gid = attr->la_gid;
2083 rc = osd_declare_qid(env, oh, qi, NULL, enforce, NULL);
2084 if (rc == -EDQUOT || rc == -EINPROGRESS)
2089 /* and one less inode for the current gid */
2090 qi->lqi_id.qid_gid = gid;
2092 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2093 if (rc == -EDQUOT || rc == -EINPROGRESS)
2098 /* block accounting */
2099 qi->lqi_is_blk = true;
2101 /* more blocks for the new gid ... */
2102 qi->lqi_id.qid_gid = attr->la_gid;
2103 qi->lqi_space = bspace;
2104 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2105 if (rc == -EDQUOT || rc == -EINPROGRESS)
2110 /* and finally less blocks for the current gid */
2111 qi->lqi_id.qid_gid = gid;
2112 qi->lqi_space = -bspace;
2113 rc = osd_declare_qid(env, oh, qi, obj, enforce, NULL);
2114 if (rc == -EDQUOT || rc == -EINPROGRESS)
2123 static int osd_inode_setattr(const struct lu_env *env,
2124 struct inode *inode, const struct lu_attr *attr)
2126 __u64 bits = attr->la_valid;
2128 /* Only allow set size for regular file */
2129 if (!S_ISREG(inode->i_mode))
2130 bits &= ~(LA_SIZE | LA_BLOCKS);
2135 if (bits & LA_ATIME)
2136 inode->i_atime = *osd_inode_time(env, inode, attr->la_atime);
2137 if (bits & LA_CTIME)
2138 inode->i_ctime = *osd_inode_time(env, inode, attr->la_ctime);
2139 if (bits & LA_MTIME)
2140 inode->i_mtime = *osd_inode_time(env, inode, attr->la_mtime);
2141 if (bits & LA_SIZE) {
2142 LDISKFS_I(inode)->i_disksize = attr->la_size;
2143 i_size_write(inode, attr->la_size);
2147 /* OSD should not change "i_blocks" which is used by quota.
2148 * "i_blocks" should be changed by ldiskfs only. */
2149 if (bits & LA_BLOCKS)
2150 inode->i_blocks = attr->la_blocks;
2153 inode->i_mode = (inode->i_mode & S_IFMT) |
2154 (attr->la_mode & ~S_IFMT);
2156 i_uid_write(inode, attr->la_uid);
2158 i_gid_write(inode, attr->la_gid);
2159 if (bits & LA_NLINK)
2160 set_nlink(inode, attr->la_nlink);
2162 inode->i_rdev = attr->la_rdev;
2164 if (bits & LA_FLAGS) {
2165 /* always keep S_NOCMTIME */
2166 inode->i_flags = ll_ext_to_inode_flags(attr->la_flags) |
2172 static int osd_quota_transfer(struct inode *inode, const struct lu_attr *attr)
2174 if ((attr->la_valid & LA_UID && attr->la_uid != i_uid_read(inode)) ||
2175 (attr->la_valid & LA_GID && attr->la_gid != i_gid_read(inode))) {
2179 ll_vfs_dq_init(inode);
2181 if (attr->la_valid & LA_UID)
2182 iattr.ia_valid |= ATTR_UID;
2183 if (attr->la_valid & LA_GID)
2184 iattr.ia_valid |= ATTR_GID;
2185 iattr.ia_uid = make_kuid(&init_user_ns, attr->la_uid);
2186 iattr.ia_gid = make_kgid(&init_user_ns, attr->la_gid);
2188 rc = ll_vfs_dq_transfer(inode, &iattr);
2190 CERROR("%s: quota transfer failed: rc = %d. Is quota "
2191 "enforcement enabled on the ldiskfs "
2192 "filesystem?\n", inode->i_sb->s_id, rc);
2199 static int osd_attr_set(const struct lu_env *env,
2200 struct dt_object *dt,
2201 const struct lu_attr *attr,
2202 struct thandle *handle)
2204 struct osd_object *obj = osd_dt_obj(dt);
2205 struct inode *inode;
2208 if (!dt_object_exists(dt))
2211 LASSERT(handle != NULL);
2212 LASSERT(!dt_object_remote(dt));
2213 LASSERT(osd_invariant(obj));
2215 osd_trans_exec_op(env, handle, OSD_OT_ATTR_SET);
2217 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_FID_MAPPING)) {
2218 struct osd_thread_info *oti = osd_oti_get(env);
2219 const struct lu_fid *fid0 = lu_object_fid(&dt->do_lu);
2220 struct lu_fid *fid1 = &oti->oti_fid;
2221 struct osd_inode_id *id = &oti->oti_id;
2222 struct iam_path_descr *ipd;
2223 struct iam_container *bag;
2224 struct osd_thandle *oh;
2227 fid_cpu_to_be(fid1, fid0);
2228 memset(id, 1, sizeof(*id));
2229 bag = &osd_fid2oi(osd_dev(dt->do_lu.lo_dev),
2230 fid0)->oi_dir.od_container;
2231 ipd = osd_idx_ipd_get(env, bag);
2232 if (unlikely(ipd == NULL))
2235 oh = container_of0(handle, struct osd_thandle, ot_super);
2236 rc = iam_update(oh->ot_handle, bag, (const struct iam_key *)fid1,
2237 (const struct iam_rec *)id, ipd);
2238 osd_ipd_put(env, bag, ipd);
2239 return(rc > 0 ? 0 : rc);
2242 inode = obj->oo_inode;
2244 rc = osd_quota_transfer(inode, attr);
2248 spin_lock(&obj->oo_guard);
2249 rc = osd_inode_setattr(env, inode, attr);
2250 spin_unlock(&obj->oo_guard);
2254 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2256 if (!(attr->la_valid & LA_FLAGS))
2259 /* Let's check if there are extra flags need to be set into LMA */
2260 if (attr->la_flags & LUSTRE_LMA_FL_MASKS) {
2261 struct osd_thread_info *info = osd_oti_get(env);
2262 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
2264 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
2268 lma->lma_incompat |=
2269 lustre_to_lma_flags(attr->la_flags);
2270 lustre_lma_swab(lma);
2271 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA,
2272 lma, sizeof(*lma), XATTR_REPLACE);
2274 struct osd_device *osd = osd_obj2dev(obj);
2276 CWARN("%s: set "DFID" lma flags %u failed: rc = %d\n",
2277 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)),
2278 lma->lma_incompat, rc);
2281 attr->la_flags & LUSTRE_LMA_FL_MASKS;
2283 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
2286 osd_trans_exec_check(env, handle, OSD_OT_ATTR_SET);
2291 static struct dentry *osd_child_dentry_get(const struct lu_env *env,
2292 struct osd_object *obj,
2293 const char *name, const int namelen)
2295 return osd_child_dentry_by_inode(env, obj->oo_inode, name, namelen);
2298 static int osd_mkfile(struct osd_thread_info *info, struct osd_object *obj,
2299 umode_t mode, struct dt_allocation_hint *hint,
2303 struct osd_device *osd = osd_obj2dev(obj);
2304 struct osd_thandle *oth;
2305 struct dt_object *parent = NULL;
2306 struct inode *inode;
2308 LINVRNT(osd_invariant(obj));
2309 LASSERT(obj->oo_inode == NULL);
2310 LASSERT(obj->oo_hl_head == NULL);
2312 if (S_ISDIR(mode) && ldiskfs_pdo) {
2313 obj->oo_hl_head =ldiskfs_htree_lock_head_alloc(HTREE_HBITS_DEF);
2314 if (obj->oo_hl_head == NULL)
2318 oth = container_of(th, struct osd_thandle, ot_super);
2319 LASSERT(oth->ot_handle->h_transaction != NULL);
2321 if (hint != NULL && hint->dah_parent != NULL &&
2322 !dt_object_remote(hint->dah_parent))
2323 parent = hint->dah_parent;
2325 inode = ldiskfs_create_inode(oth->ot_handle,
2326 parent ? osd_dt_obj(parent)->oo_inode :
2327 osd_sb(osd)->s_root->d_inode,
2329 if (!IS_ERR(inode)) {
2330 /* Do not update file c/mtime in ldiskfs. */
2331 inode->i_flags |= S_NOCMTIME;
2333 /* For new created object, it must be consistent,
2334 * and it is unnecessary to scrub against it. */
2335 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_NOSCRUB);
2337 obj->oo_inode = inode;
2340 if (obj->oo_hl_head != NULL) {
2341 ldiskfs_htree_lock_head_free(obj->oo_hl_head);
2342 obj->oo_hl_head = NULL;
2344 result = PTR_ERR(inode);
2346 LINVRNT(osd_invariant(obj));
2354 static int osd_mkdir(struct osd_thread_info *info, struct osd_object *obj,
2355 struct lu_attr *attr,
2356 struct dt_allocation_hint *hint,
2357 struct dt_object_format *dof,
2361 struct osd_thandle *oth;
2362 __u32 mode = (attr->la_mode & (S_IFMT | S_IRWXUGO | S_ISVTX));
2364 LASSERT(S_ISDIR(attr->la_mode));
2366 oth = container_of(th, struct osd_thandle, ot_super);
2367 LASSERT(oth->ot_handle->h_transaction != NULL);
2368 result = osd_mkfile(info, obj, mode, hint, th);
2373 static int osd_mk_index(struct osd_thread_info *info, struct osd_object *obj,
2374 struct lu_attr *attr,
2375 struct dt_allocation_hint *hint,
2376 struct dt_object_format *dof,
2380 struct osd_thandle *oth;
2381 const struct dt_index_features *feat = dof->u.dof_idx.di_feat;
2383 __u32 mode = (attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX));
2385 LASSERT(S_ISREG(attr->la_mode));
2387 oth = container_of(th, struct osd_thandle, ot_super);
2388 LASSERT(oth->ot_handle->h_transaction != NULL);
2390 result = osd_mkfile(info, obj, mode, hint, th);
2392 LASSERT(obj->oo_inode != NULL);
2393 if (feat->dif_flags & DT_IND_VARKEY)
2394 result = iam_lvar_create(obj->oo_inode,
2395 feat->dif_keysize_max,
2397 feat->dif_recsize_max,
2400 result = iam_lfix_create(obj->oo_inode,
2401 feat->dif_keysize_max,
2403 feat->dif_recsize_max,
2410 static int osd_mkreg(struct osd_thread_info *info, struct osd_object *obj,
2411 struct lu_attr *attr,
2412 struct dt_allocation_hint *hint,
2413 struct dt_object_format *dof,
2416 LASSERT(S_ISREG(attr->la_mode));
2417 return osd_mkfile(info, obj, (attr->la_mode &
2418 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
2421 static int osd_mksym(struct osd_thread_info *info, struct osd_object *obj,
2422 struct lu_attr *attr,
2423 struct dt_allocation_hint *hint,
2424 struct dt_object_format *dof,
2427 LASSERT(S_ISLNK(attr->la_mode));
2428 return osd_mkfile(info, obj, (attr->la_mode &
2429 (S_IFMT | S_IALLUGO | S_ISVTX)), hint, th);
2432 static int osd_mknod(struct osd_thread_info *info, struct osd_object *obj,
2433 struct lu_attr *attr,
2434 struct dt_allocation_hint *hint,
2435 struct dt_object_format *dof,
2438 umode_t mode = attr->la_mode & (S_IFMT | S_IALLUGO | S_ISVTX);
2441 LINVRNT(osd_invariant(obj));
2442 LASSERT(obj->oo_inode == NULL);
2443 LASSERT(S_ISCHR(mode) || S_ISBLK(mode) ||
2444 S_ISFIFO(mode) || S_ISSOCK(mode));
2446 result = osd_mkfile(info, obj, mode, hint, th);
2448 LASSERT(obj->oo_inode != NULL);
2450 * This inode should be marked dirty for i_rdev. Currently
2451 * that is done in the osd_attr_init().
2453 init_special_inode(obj->oo_inode, obj->oo_inode->i_mode,
2456 LINVRNT(osd_invariant(obj));
2460 typedef int (*osd_obj_type_f)(struct osd_thread_info *, struct osd_object *,
2462 struct dt_allocation_hint *hint,
2463 struct dt_object_format *dof,
2466 static osd_obj_type_f osd_create_type_f(enum dt_format_type type)
2468 osd_obj_type_f result;
2484 result = osd_mk_index;
2495 static void osd_ah_init(const struct lu_env *env, struct dt_allocation_hint *ah,
2496 struct dt_object *parent, struct dt_object *child,
2501 ah->dah_parent = parent;
2502 ah->dah_mode = child_mode;
2504 if (parent != NULL && !dt_object_remote(parent)) {
2505 /* will help to find FID->ino at dt_insert("..") */
2506 struct osd_object *pobj = osd_dt_obj(parent);
2507 osd_idc_find_and_init(env, osd_obj2dev(pobj), pobj);
2511 static void osd_attr_init(struct osd_thread_info *info, struct osd_object *obj,
2512 struct lu_attr *attr, struct dt_object_format *dof)
2514 struct inode *inode = obj->oo_inode;
2515 __u64 valid = attr->la_valid;
2518 attr->la_valid &= ~(LA_TYPE | LA_MODE);
2520 if (dof->dof_type != DFT_NODE)
2521 attr->la_valid &= ~LA_RDEV;
2522 if ((valid & LA_ATIME) && (attr->la_atime == LTIME_S(inode->i_atime)))
2523 attr->la_valid &= ~LA_ATIME;
2524 if ((valid & LA_CTIME) && (attr->la_ctime == LTIME_S(inode->i_ctime)))
2525 attr->la_valid &= ~LA_CTIME;
2526 if ((valid & LA_MTIME) && (attr->la_mtime == LTIME_S(inode->i_mtime)))
2527 attr->la_valid &= ~LA_MTIME;
2529 result = osd_quota_transfer(inode, attr);
2533 if (attr->la_valid != 0) {
2534 result = osd_inode_setattr(info->oti_env, inode, attr);
2536 * The osd_inode_setattr() should always succeed here. The
2537 * only error that could be returned is EDQUOT when we are
2538 * trying to change the UID or GID of the inode. However, this
2539 * should not happen since quota enforcement is no longer
2540 * enabled on ldiskfs (lquota takes care of it).
2542 LASSERTF(result == 0, "%d\n", result);
2543 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2546 attr->la_valid = valid;
2550 * Helper function for osd_object_create()
2552 * \retval 0, on success
2554 static int __osd_object_create(struct osd_thread_info *info,
2555 struct osd_object *obj, struct lu_attr *attr,
2556 struct dt_allocation_hint *hint,
2557 struct dt_object_format *dof,
2563 osd_trans_exec_op(info->oti_env, th, OSD_OT_CREATE);
2565 /* we drop umask so that permissions we pass are not affected */
2566 umask = current->fs->umask;
2567 current->fs->umask = 0;
2569 result = osd_create_type_f(dof->dof_type)(info, obj, attr, hint, dof,
2571 if (likely(obj->oo_inode != NULL)) {
2572 LASSERT(obj->oo_inode->i_state & I_NEW);
2574 /* Unlock the inode before attr initialization to avoid
2575 * unnecessary dqget operations. LU-6378 */
2576 unlock_new_inode(obj->oo_inode);
2579 if (likely(result == 0)) {
2580 osd_attr_init(info, obj, attr, dof);
2581 osd_object_init0(obj);
2584 /* restore previous umask value */
2585 current->fs->umask = umask;
2587 osd_trans_exec_check(info->oti_env, th, OSD_OT_CREATE);
2593 * Helper function for osd_object_create()
2595 * \retval 0, on success
2597 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
2598 const struct lu_fid *fid, struct thandle *th)
2600 struct osd_thread_info *info = osd_oti_get(env);
2601 struct osd_inode_id *id = &info->oti_id;
2602 struct osd_device *osd = osd_obj2dev(obj);
2603 struct osd_thandle *oh;
2606 LASSERT(obj->oo_inode != NULL);
2608 oh = container_of0(th, struct osd_thandle, ot_super);
2609 LASSERT(oh->ot_handle);
2610 osd_trans_exec_op(env, th, OSD_OT_INSERT);
2612 osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
2613 rc = osd_oi_insert(info, osd, fid, id, oh->ot_handle, OI_CHECK_FLD);
2614 osd_trans_exec_check(env, th, OSD_OT_INSERT);
2619 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
2620 u64 seq, struct lu_seq_range *range)
2622 struct seq_server_site *ss = osd_seq_site(osd);
2624 if (fid_seq_is_idif(seq)) {
2625 fld_range_set_ost(range);
2626 range->lsr_index = idif_ost_idx(seq);
2630 if (!fid_seq_in_fldb(seq)) {
2631 fld_range_set_mdt(range);
2633 /* FIXME: If ss is NULL, it suppose not get lsr_index
2635 range->lsr_index = ss->ss_node_id;
2639 LASSERT(ss != NULL);
2640 fld_range_set_any(range);
2641 /* OSD will only do local fld lookup */
2642 return fld_local_lookup(env, ss->ss_server_fld, seq, range);
2646 * Concurrency: no external locking is necessary.
2648 static int osd_declare_object_create(const struct lu_env *env,
2649 struct dt_object *dt,
2650 struct lu_attr *attr,
2651 struct dt_allocation_hint *hint,
2652 struct dt_object_format *dof,
2653 struct thandle *handle)
2655 struct osd_thandle *oh;
2659 LASSERT(handle != NULL);
2661 oh = container_of0(handle, struct osd_thandle, ot_super);
2662 LASSERT(oh->ot_handle == NULL);
2664 /* EA object consumes more credits than regular object: osd_mk_index
2665 * vs. osd_mkreg: osd_mk_index will create 2 blocks for root_node and
2666 * leaf_node, could involves the block, block bitmap, groups, GDT
2667 * change for each block, so add 4 * 2 credits in that case. */
2668 osd_trans_declare_op(env, oh, OSD_OT_CREATE,
2669 osd_dto_credits_noquota[DTO_OBJECT_CREATE] +
2670 (dof->dof_type == DFT_INDEX) ? 4 * 2 : 0);
2671 /* Reuse idle OI block may cause additional one OI block
2673 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
2674 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1);
2679 rc = osd_declare_inode_qid(env, attr->la_uid, attr->la_gid, 1, oh,
2680 osd_dt_obj(dt), false, NULL, false);
2684 /* will help to find FID->ino mapping at dt_insert() */
2685 rc = osd_idc_find_and_init(env, osd_obj2dev(osd_dt_obj(dt)),
2691 static int osd_object_create(const struct lu_env *env, struct dt_object *dt,
2692 struct lu_attr *attr,
2693 struct dt_allocation_hint *hint,
2694 struct dt_object_format *dof, struct thandle *th)
2696 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2697 struct osd_object *obj = osd_dt_obj(dt);
2698 struct osd_thread_info *info = osd_oti_get(env);
2702 if (dt_object_exists(dt))
2705 LINVRNT(osd_invariant(obj));
2706 LASSERT(!dt_object_remote(dt));
2707 LASSERT(osd_write_locked(env, obj));
2708 LASSERT(th != NULL);
2710 if (unlikely(fid_is_acct(fid)))
2711 /* Quota files can't be created from the kernel any more,
2712 * 'tune2fs -O quota' will take care of creating them */
2715 result = __osd_object_create(info, obj, attr, hint, dof, th);
2717 result = __osd_oi_insert(env, obj, fid, th);
2718 if (obj->oo_dt.do_body_ops == &osd_body_ops_new)
2719 obj->oo_dt.do_body_ops = &osd_body_ops;
2721 LASSERT(ergo(result == 0,
2722 dt_object_exists(dt) && !dt_object_remote(dt)));
2724 LASSERT(osd_invariant(obj));
2729 * Called to destroy on-disk representation of the object
2731 * Concurrency: must be locked
2733 static int osd_declare_object_destroy(const struct lu_env *env,
2734 struct dt_object *dt,
2737 struct osd_object *obj = osd_dt_obj(dt);
2738 struct inode *inode = obj->oo_inode;
2739 struct osd_thandle *oh;
2746 oh = container_of0(th, struct osd_thandle, ot_super);
2747 LASSERT(oh->ot_handle == NULL);
2749 osd_trans_declare_op(env, oh, OSD_OT_DESTROY,
2750 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
2751 /* Recycle idle OI leaf may cause additional three OI blocks
2753 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
2754 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
2755 /* one less inode */
2756 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
2757 -1, oh, obj, false, NULL, false);
2760 /* data to be truncated */
2761 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
2762 0, oh, obj, true, NULL, false);
2766 /* will help to find FID->ino when this object is being
2767 * added to PENDING/ */
2768 rc = osd_idc_find_and_init(env, osd_obj2dev(obj), obj);
2773 static int osd_object_destroy(const struct lu_env *env,
2774 struct dt_object *dt,
2777 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
2778 struct osd_object *obj = osd_dt_obj(dt);
2779 struct inode *inode = obj->oo_inode;
2780 struct osd_device *osd = osd_obj2dev(obj);
2781 struct osd_thandle *oh;
2785 oh = container_of0(th, struct osd_thandle, ot_super);
2786 LASSERT(oh->ot_handle);
2788 LASSERT(!lu_object_is_dying(dt->do_lu.lo_header));
2790 if (unlikely(fid_is_acct(fid)))
2793 if (S_ISDIR(inode->i_mode)) {
2794 LASSERT(osd_inode_unlinked(inode) || inode->i_nlink == 1 ||
2795 inode->i_nlink == 2);
2796 /* it will check/delete the inode from remote parent,
2797 * how to optimize it? unlink performance impaction XXX */
2798 result = osd_delete_from_remote_parent(env, osd, obj, oh);
2799 if (result != 0 && result != -ENOENT) {
2800 CERROR("%s: delete inode "DFID": rc = %d\n",
2801 osd_name(osd), PFID(fid), result);
2803 spin_lock(&obj->oo_guard);
2805 spin_unlock(&obj->oo_guard);
2806 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
2809 osd_trans_exec_op(env, th, OSD_OT_DESTROY);
2811 ldiskfs_set_inode_state(inode, LDISKFS_STATE_LUSTRE_DESTROY);
2812 result = osd_oi_delete(osd_oti_get(env), osd, fid, oh->ot_handle,
2815 osd_trans_exec_check(env, th, OSD_OT_DESTROY);
2816 /* XXX: add to ext3 orphan list */
2817 /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */
2819 /* not needed in the cache anymore */
2820 set_bit(LU_OBJECT_HEARD_BANSHEE, &dt->do_lu.lo_header->loh_flags);
2821 obj->oo_destroyed = 1;
2827 * Put the fid into lustre_mdt_attrs, and then place the structure
2828 * inode's ea. This fid should not be altered during the life time
2831 * \retval +ve, on success
2832 * \retval -ve, on error
2834 * FIXME: It is good to have/use ldiskfs_xattr_set_handle() here
2836 int osd_ea_fid_set(struct osd_thread_info *info, struct inode *inode,
2837 const struct lu_fid *fid, __u32 compat, __u32 incompat)
2839 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
2843 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INLMA))
2846 if (OBD_FAIL_CHECK(OBD_FAIL_OSD_OST_EA_FID_SET))
2849 lustre_lma_init(lma, fid, compat, incompat);
2850 lustre_lma_swab(lma);
2852 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma, sizeof(*lma),
2854 /* LMA may already exist, but we need to check that all the
2855 * desired compat/incompat flags have been added. */
2856 if (unlikely(rc == -EEXIST)) {
2857 if (compat == 0 && incompat == 0)
2860 rc = __osd_xattr_get(inode, &info->oti_obj_dentry,
2861 XATTR_NAME_LMA, info->oti_mdt_attrs_old,
2866 lustre_lma_swab(lma);
2867 if (!(~lma->lma_compat & compat) &&
2868 !(~lma->lma_incompat & incompat))
2871 lma->lma_compat |= compat;
2872 lma->lma_incompat |= incompat;
2873 lustre_lma_swab(lma);
2874 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
2875 sizeof(*lma), XATTR_REPLACE);
2882 * ldiskfs supports fid in dirent, it is passed in dentry->d_fsdata.
2883 * lustre 1.8 also uses d_fsdata for passing other info to ldiskfs.
2884 * To have compatilibility with 1.8 ldiskfs driver we need to have
2885 * magic number at start of fid data.
2886 * \ldiskfs_dentry_param is used only to pass fid from osd to ldiskfs.
2889 static void osd_get_ldiskfs_dirent_param(struct ldiskfs_dentry_param *param,
2890 const struct lu_fid *fid)
2892 if (!fid_is_namespace_visible(fid) ||
2893 OBD_FAIL_CHECK(OBD_FAIL_FID_IGIF)) {
2894 param->edp_magic = 0;
2898 param->edp_magic = LDISKFS_LUFID_MAGIC;
2899 param->edp_len = sizeof(struct lu_fid) + 1;
2900 fid_cpu_to_be((struct lu_fid *)param->edp_data, (struct lu_fid *)fid);
2904 * Try to read the fid from inode ea into dt_rec.
2906 * \param fid object fid.
2908 * \retval 0 on success
2910 static int osd_ea_fid_get(const struct lu_env *env, struct osd_object *obj,
2911 __u32 ino, struct lu_fid *fid,
2912 struct osd_inode_id *id)
2914 struct osd_thread_info *info = osd_oti_get(env);
2915 struct inode *inode;
2918 osd_id_gen(id, ino, OSD_OII_NOGEN);
2919 inode = osd_iget_fid(info, osd_obj2dev(obj), id, fid);
2921 RETURN(PTR_ERR(inode));
2927 static int osd_add_dot_dotdot_internal(struct osd_thread_info *info,
2929 struct inode *parent_dir,
2930 const struct lu_fid *dot_fid,
2931 const struct lu_fid *dot_dot_fid,
2932 struct osd_thandle *oth)
2934 struct ldiskfs_dentry_param *dot_ldp;
2935 struct ldiskfs_dentry_param *dot_dot_ldp;
2936 __u32 saved_nlink = dir->i_nlink;
2939 dot_dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp2;
2940 osd_get_ldiskfs_dirent_param(dot_dot_ldp, dot_dot_fid);
2942 dot_ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
2943 dot_ldp->edp_magic = 0;
2945 rc = ldiskfs_add_dot_dotdot(oth->ot_handle, parent_dir,
2946 dir, dot_ldp, dot_dot_ldp);
2947 /* The ldiskfs_add_dot_dotdot() may dir->i_nlink as 2, then
2948 * the subseqent ref_add() will increase the dir->i_nlink
2949 * as 3. That is incorrect for new created directory.
2951 * It looks like hack, because we want to make the OSD API
2952 * to be order-independent for new created directory object
2953 * between dt_insert(..) and ref_add() operations.
2955 * Here, we only restore the in-RAM dir-inode's nlink attr,
2956 * becuase if the nlink attr is not 2, then there will be
2957 * ref_add() called following the dt_insert(..), such call
2958 * will make both the in-RAM and on-disk dir-inode's nlink
2959 * attr to be set as 2. LU-7447 */
2960 set_nlink(dir, saved_nlink);
2965 * Create an local agent inode for remote entry
2967 static struct inode *osd_create_local_agent_inode(const struct lu_env *env,
2968 struct osd_device *osd,
2969 struct osd_object *pobj,
2970 const struct lu_fid *fid,
2974 struct osd_thread_info *info = osd_oti_get(env);
2975 struct inode *local;
2976 struct osd_thandle *oh;
2981 oh = container_of(th, struct osd_thandle, ot_super);
2982 LASSERT(oh->ot_handle->h_transaction != NULL);
2984 local = ldiskfs_create_inode(oh->ot_handle, pobj->oo_inode, type);
2985 if (IS_ERR(local)) {
2986 CERROR("%s: create local error %d\n", osd_name(osd),
2987 (int)PTR_ERR(local));
2991 ldiskfs_set_inode_state(local, LDISKFS_STATE_LUSTRE_NOSCRUB);
2992 unlock_new_inode(local);
2994 /* Set special LMA flag for local agent inode */
2995 rc = osd_ea_fid_set(info, local, fid, 0, LMAI_AGENT);
2997 CERROR("%s: set LMA for "DFID" remote inode failed: rc = %d\n",
2998 osd_name(osd), PFID(fid), rc);
2999 RETURN(ERR_PTR(rc));
3005 rc = osd_add_dot_dotdot_internal(info, local, pobj->oo_inode,
3006 lu_object_fid(&pobj->oo_dt.do_lu),
3009 CERROR("%s: "DFID" add dot dotdot error: rc = %d\n",
3010 osd_name(osd), PFID(fid), rc);
3011 RETURN(ERR_PTR(rc));
3018 * when direntry is deleted, we have to take care of possible agent inode
3019 * referenced by that. unfortunately we can't do this at that point:
3020 * iget() within a running transaction leads to deadlock and we better do
3021 * not call that every delete declaration to save performance. so we put
3022 * a potention agent inode on a list and process that once the transaction
3023 * is over. Notice it's not any worse in terms of real orphans as regular
3024 * object destroy doesn't put inodes on the on-disk orphan list. this should
3025 * be addressed separately
3027 static int osd_schedule_agent_inode_removal(const struct lu_env *env,
3028 struct osd_thandle *oh,
3031 struct osd_device *osd = osd_dt_dev(oh->ot_super.th_dev);
3032 struct osd_obj_orphan *oor;
3039 oor->oor_env = (struct lu_env *)env;
3040 spin_lock(&osd->od_osfs_lock);
3041 list_add(&oor->oor_list, &osd->od_orphan_list);
3042 spin_unlock(&osd->od_osfs_lock);
3044 oh->ot_remove_agents = 1;
3050 static int osd_process_scheduled_agent_removals(const struct lu_env *env,
3051 struct osd_device *osd)
3053 struct osd_thread_info *info = osd_oti_get(env);
3054 struct osd_obj_orphan *oor, *tmp;
3055 struct osd_inode_id id;
3056 struct list_head list;
3057 struct inode *inode;
3062 INIT_LIST_HEAD(&list);
3064 spin_lock(&osd->od_osfs_lock);
3065 list_for_each_entry_safe(oor, tmp, &osd->od_orphan_list, oor_list) {
3066 if (oor->oor_env == env) {
3067 list_del(&oor->oor_list);
3068 list_add(&oor->oor_list, &list);
3071 spin_unlock(&osd->od_osfs_lock);
3073 list_for_each_entry_safe(oor, tmp, &list, oor_list) {
3077 list_del(&oor->oor_list);
3080 osd_id_gen(&id, ino, OSD_OII_NOGEN);
3081 inode = osd_iget_fid(info, osd, &id, &fid);
3085 if (!osd_remote_fid(env, osd, &fid)) {
3090 jh = osd_journal_start_sb(osd_sb(osd), LDISKFS_HT_MISC, 1);
3092 mark_inode_dirty(inode);
3093 ldiskfs_journal_stop(jh);
3101 * OSD layer object create function for interoperability mode (b11826).
3102 * This is mostly similar to osd_object_create(). Only difference being, fid is
3103 * inserted into inode ea here.
3105 * \retval 0, on success
3106 * \retval -ve, on error
3108 static int osd_object_ea_create(const struct lu_env *env, struct dt_object *dt,
3109 struct lu_attr *attr,
3110 struct dt_allocation_hint *hint,
3111 struct dt_object_format *dof,
3114 const struct lu_fid *fid = lu_object_fid(&dt->do_lu);
3115 struct osd_object *obj = osd_dt_obj(dt);
3116 struct osd_thread_info *info = osd_oti_get(env);
3117 int result, on_ost = 0;
3121 if (dt_object_exists(dt))
3124 LASSERT(osd_invariant(obj));
3125 LASSERT(!dt_object_remote(dt));
3126 LASSERT(osd_write_locked(env, obj));
3127 LASSERT(th != NULL);
3129 if (unlikely(fid_is_acct(fid)))
3130 /* Quota files can't be created from the kernel any more,
3131 * 'tune2fs -O quota' will take care of creating them */
3134 result = __osd_object_create(info, obj, attr, hint, dof, th);
3136 if (fid_is_idif(fid) &&
3137 !osd_dev(dt->do_lu.lo_dev)->od_index_in_idif) {
3138 struct lu_fid *tfid = &info->oti_fid;
3139 struct ost_id *oi = &info->oti_ostid;
3141 fid_to_ostid(fid, oi);
3142 ostid_to_fid(tfid, oi, 0);
3144 result = osd_ea_fid_set(info, obj->oo_inode, tfid,
3145 LMAC_FID_ON_OST, 0);
3147 on_ost = fid_is_on_ost(info, osd_obj2dev(obj),
3149 result = osd_ea_fid_set(info, obj->oo_inode, fid,
3150 on_ost ? LMAC_FID_ON_OST : 0,
3153 if (obj->oo_dt.do_body_ops == &osd_body_ops_new)
3154 obj->oo_dt.do_body_ops = &osd_body_ops;
3158 result = __osd_oi_insert(env, obj, fid, th);
3160 /* a small optimization - dt_insert() isn't usually applied
3161 * to OST objects, so we don't need to cache OI mapping for
3163 if (result == 0 && on_ost == 0) {
3164 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3165 result = osd_idc_find_and_init(env, osd, obj);
3166 LASSERT(result == 0);
3169 LASSERT(ergo(result == 0,
3170 dt_object_exists(dt) && !dt_object_remote(dt)));
3171 LINVRNT(osd_invariant(obj));
3175 static int osd_declare_object_ref_add(const struct lu_env *env,
3176 struct dt_object *dt,
3177 struct thandle *handle)
3179 struct osd_thandle *oh;
3181 /* it's possible that object doesn't exist yet */
3182 LASSERT(handle != NULL);
3184 oh = container_of0(handle, struct osd_thandle, ot_super);
3185 LASSERT(oh->ot_handle == NULL);
3187 osd_trans_declare_op(env, oh, OSD_OT_REF_ADD,
3188 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
3194 * Concurrency: @dt is write locked.
3196 static int osd_object_ref_add(const struct lu_env *env,
3197 struct dt_object *dt, struct thandle *th)
3199 struct osd_object *obj = osd_dt_obj(dt);
3200 struct inode *inode = obj->oo_inode;
3201 struct osd_thandle *oh;
3204 if (!dt_object_exists(dt) || obj->oo_destroyed)
3207 LINVRNT(osd_invariant(obj));
3208 LASSERT(!dt_object_remote(dt));
3209 LASSERT(osd_write_locked(env, obj));
3210 LASSERT(th != NULL);
3212 oh = container_of0(th, struct osd_thandle, ot_super);
3213 LASSERT(oh->ot_handle != NULL);
3215 osd_trans_exec_op(env, th, OSD_OT_REF_ADD);
3217 CDEBUG(D_INODE, DFID" increase nlink %d\n",
3218 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
3220 * The DIR_NLINK feature allows directories to exceed LDISKFS_LINK_MAX
3221 * (65000) subdirectories by storing "1" in i_nlink if the link count
3222 * would otherwise overflow. Directory tranversal tools understand
3223 * that (st_nlink == 1) indicates that the filesystem dose not track
3224 * hard links count on the directory, and will not abort subdirectory
3225 * scanning early once (st_nlink - 2) subdirs have been found.
3227 * This also has to properly handle the case of inodes with nlink == 0
3228 * in case they are being linked into the PENDING directory
3230 spin_lock(&obj->oo_guard);
3231 if (unlikely(inode->i_nlink == 0))
3232 /* inc_nlink from 0 may cause WARN_ON */
3233 set_nlink(inode, 1);
3235 ldiskfs_inc_count(oh->ot_handle, inode);
3236 if (!S_ISDIR(inode->i_mode))
3237 LASSERT(inode->i_nlink <= LDISKFS_LINK_MAX);
3239 spin_unlock(&obj->oo_guard);
3241 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3242 LINVRNT(osd_invariant(obj));
3244 osd_trans_exec_check(env, th, OSD_OT_REF_ADD);
3249 static int osd_declare_object_ref_del(const struct lu_env *env,
3250 struct dt_object *dt,
3251 struct thandle *handle)
3253 struct osd_thandle *oh;
3255 if (!dt_object_exists(dt))
3258 LASSERT(!dt_object_remote(dt));
3259 LASSERT(handle != NULL);
3261 oh = container_of0(handle, struct osd_thandle, ot_super);
3262 LASSERT(oh->ot_handle == NULL);
3264 osd_trans_declare_op(env, oh, OSD_OT_REF_DEL,
3265 osd_dto_credits_noquota[DTO_ATTR_SET_BASE]);
3271 * Concurrency: @dt is write locked.
3273 static int osd_object_ref_del(const struct lu_env *env, struct dt_object *dt,
3276 struct osd_object *obj = osd_dt_obj(dt);
3277 struct inode *inode = obj->oo_inode;
3278 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3279 struct osd_thandle *oh;
3281 if (!dt_object_exists(dt))
3284 LINVRNT(osd_invariant(obj));
3285 LASSERT(!dt_object_remote(dt));
3286 LASSERT(osd_write_locked(env, obj));
3287 LASSERT(th != NULL);
3289 oh = container_of0(th, struct osd_thandle, ot_super);
3290 LASSERT(oh->ot_handle != NULL);
3292 osd_trans_exec_op(env, th, OSD_OT_REF_DEL);
3294 spin_lock(&obj->oo_guard);
3295 /* That can be result of upgrade from old Lustre version and
3296 * applied only to local files. Just skip this ref_del call.
3297 * ext4_unlink() only treats this as a warning, don't LASSERT here.*/
3298 if (inode->i_nlink == 0) {
3299 CDEBUG_LIMIT(fid_is_norm(lu_object_fid(&dt->do_lu)) ?
3300 D_ERROR : D_INODE, "%s: nlink == 0 on "DFID
3301 ", maybe an upgraded file? (LU-3915)\n",
3302 osd_name(osd), PFID(lu_object_fid(&dt->do_lu)));
3303 spin_unlock(&obj->oo_guard);
3307 CDEBUG(D_INODE, DFID" decrease nlink %d\n",
3308 PFID(lu_object_fid(&dt->do_lu)), inode->i_nlink);
3310 ldiskfs_dec_count(oh->ot_handle, inode);
3311 spin_unlock(&obj->oo_guard);
3313 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3314 LINVRNT(osd_invariant(obj));
3316 osd_trans_exec_check(env, th, OSD_OT_REF_DEL);
3322 * Get the 64-bit version for an inode.
3324 static int osd_object_version_get(const struct lu_env *env,
3325 struct dt_object *dt, dt_obj_version_t *ver)
3327 struct inode *inode = osd_dt_obj(dt)->oo_inode;
3329 CDEBUG(D_INODE, "Get version "LPX64" for inode %lu\n",
3330 LDISKFS_I(inode)->i_fs_version, inode->i_ino);
3331 *ver = LDISKFS_I(inode)->i_fs_version;
3336 * Concurrency: @dt is read locked.
3338 static int osd_xattr_get(const struct lu_env *env, struct dt_object *dt,
3339 struct lu_buf *buf, const char *name)
3341 struct osd_object *obj = osd_dt_obj(dt);
3342 struct inode *inode = obj->oo_inode;
3343 struct osd_thread_info *info = osd_oti_get(env);
3344 struct dentry *dentry = &info->oti_obj_dentry;
3346 /* version get is not real XATTR but uses xattr API */
3347 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
3348 /* for version we are just using xattr API but change inode
3350 if (buf->lb_len == 0)
3351 return sizeof(dt_obj_version_t);
3353 if (buf->lb_len < sizeof(dt_obj_version_t))
3356 osd_object_version_get(env, dt, buf->lb_buf);
3358 return sizeof(dt_obj_version_t);
3361 if (!dt_object_exists(dt))
3364 LASSERT(!dt_object_remote(dt));
3365 LASSERT(inode->i_op != NULL);
3366 LASSERT(inode->i_op->getxattr != NULL);
3368 return __osd_xattr_get(inode, dentry, name, buf->lb_buf, buf->lb_len);
3372 static int osd_declare_xattr_set(const struct lu_env *env,
3373 struct dt_object *dt,
3374 const struct lu_buf *buf, const char *name,
3375 int fl, struct thandle *handle)
3377 struct osd_thandle *oh;
3379 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
3381 LASSERT(handle != NULL);
3383 oh = container_of0(handle, struct osd_thandle, ot_super);
3384 LASSERT(oh->ot_handle == NULL);
3386 if (strcmp(name, XATTR_NAME_LMA) == 0) {
3387 /* For non-upgrading case, the LMA is set first and
3388 * usually fit inode. But for upgrade case, the LMA
3389 * may be in another separated EA block. */
3390 if (!dt_object_exists(dt))
3392 else if (fl == LU_XATTR_REPLACE)
3396 } else if (strcmp(name, XATTR_NAME_VERSION) == 0) {
3400 credits = osd_dto_credits_noquota[DTO_XATTR_SET];
3405 if (buf->lb_buf == NULL && dt_object_exists(dt)) {
3406 /* learn xattr size from osd_xattr_get if
3407 attribute has not been read yet */
3408 buflen = __osd_xattr_get(
3409 osd_dt_obj(dt)->oo_inode,
3410 &osd_oti_get(env)->oti_obj_dentry,
3415 buflen = buf->lb_len;
3418 if (buflen > sb->s_blocksize) {
3419 credits += osd_calc_bkmap_credits(
3421 (buflen + sb->s_blocksize - 1) >>
3422 sb->s_blocksize_bits);
3426 * xattr set may involve inode quota change, reserve credits for
3427 * dquot_initialize()
3429 credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
3432 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET, credits);
3438 * Set the 64-bit version for object
3440 static void osd_object_version_set(const struct lu_env *env,
3441 struct dt_object *dt,
3442 dt_obj_version_t *new_version)
3444 struct inode *inode = osd_dt_obj(dt)->oo_inode;
3446 CDEBUG(D_INODE, "Set version "LPX64" (old "LPX64") for inode %lu\n",
3447 *new_version, LDISKFS_I(inode)->i_fs_version, inode->i_ino);
3449 LDISKFS_I(inode)->i_fs_version = *new_version;
3450 /** Version is set after all inode operations are finished,
3451 * so we should mark it dirty here */
3452 ll_dirty_inode(inode, I_DIRTY_DATASYNC);
3456 * Concurrency: @dt is write locked.
3458 static int osd_xattr_set(const struct lu_env *env, struct dt_object *dt,
3459 const struct lu_buf *buf, const char *name, int fl,
3460 struct thandle *handle)
3462 struct osd_object *obj = osd_dt_obj(dt);
3463 struct inode *inode = obj->oo_inode;
3464 struct osd_thread_info *info = osd_oti_get(env);
3469 LASSERT(handle != NULL);
3471 /* version set is not real XATTR */
3472 if (strcmp(name, XATTR_NAME_VERSION) == 0) {
3473 /* for version we are just using xattr API but change inode
3475 LASSERT(buf->lb_len == sizeof(dt_obj_version_t));
3476 osd_object_version_set(env, dt, buf->lb_buf);
3477 return sizeof(dt_obj_version_t);
3480 CDEBUG(D_INODE, DFID" set xattr '%s' with size %zu\n",
3481 PFID(lu_object_fid(&dt->do_lu)), name, buf->lb_len);
3483 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
3484 if (fl & LU_XATTR_REPLACE)
3485 fs_flags |= XATTR_REPLACE;
3487 if (fl & LU_XATTR_CREATE)
3488 fs_flags |= XATTR_CREATE;
3490 if (strcmp(name, XATTR_NAME_LMV) == 0) {
3491 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
3494 rc = osd_get_lma(info, inode, &info->oti_obj_dentry, lma);
3498 lma->lma_incompat |= LMAI_STRIPED;
3499 lustre_lma_swab(lma);
3500 rc = __osd_xattr_set(info, inode, XATTR_NAME_LMA, lma,
3501 sizeof(*lma), XATTR_REPLACE);
3506 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_LINKEA_OVERFLOW) &&
3507 strcmp(name, XATTR_NAME_LINK) == 0)
3510 rc = __osd_xattr_set(info, inode, name, buf->lb_buf, buf->lb_len,
3512 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
3518 * Concurrency: @dt is read locked.
3520 static int osd_xattr_list(const struct lu_env *env, struct dt_object *dt,
3521 const struct lu_buf *buf)
3523 struct osd_object *obj = osd_dt_obj(dt);
3524 struct inode *inode = obj->oo_inode;
3525 struct osd_thread_info *info = osd_oti_get(env);
3526 struct dentry *dentry = &info->oti_obj_dentry;
3528 if (!dt_object_exists(dt))
3531 LASSERT(!dt_object_remote(dt));
3532 LASSERT(inode->i_op != NULL);
3533 LASSERT(inode->i_op->listxattr != NULL);
3535 dentry->d_inode = inode;
3536 dentry->d_sb = inode->i_sb;
3537 return inode->i_op->listxattr(dentry, buf->lb_buf, buf->lb_len);
3540 static int osd_declare_xattr_del(const struct lu_env *env,
3541 struct dt_object *dt, const char *name,
3542 struct thandle *handle)
3544 struct osd_thandle *oh;
3545 struct super_block *sb = osd_sb(osd_dev(dt->do_lu.lo_dev));
3547 LASSERT(!dt_object_remote(dt));
3548 LASSERT(handle != NULL);
3550 oh = container_of0(handle, struct osd_thandle, ot_super);
3551 LASSERT(oh->ot_handle == NULL);
3553 osd_trans_declare_op(env, oh, OSD_OT_XATTR_SET,
3554 osd_dto_credits_noquota[DTO_XATTR_SET]);
3556 * xattr del may involve inode quota change, reserve credits for
3557 * dquot_initialize()
3559 oh->ot_credits += LDISKFS_MAXQUOTAS_INIT_BLOCKS(sb);
3565 * Concurrency: @dt is write locked.
3567 static int osd_xattr_del(const struct lu_env *env, struct dt_object *dt,
3568 const char *name, struct thandle *handle)
3570 struct osd_object *obj = osd_dt_obj(dt);
3571 struct inode *inode = obj->oo_inode;
3572 struct osd_thread_info *info = osd_oti_get(env);
3573 struct dentry *dentry = &info->oti_obj_dentry;
3576 if (!dt_object_exists(dt))
3579 LASSERT(!dt_object_remote(dt));
3580 LASSERT(inode->i_op != NULL);
3581 LASSERT(inode->i_op->removexattr != NULL);
3582 LASSERT(handle != NULL);
3584 osd_trans_exec_op(env, handle, OSD_OT_XATTR_SET);
3586 ll_vfs_dq_init(inode);
3587 dentry->d_inode = inode;
3588 dentry->d_sb = inode->i_sb;
3589 rc = inode->i_op->removexattr(dentry, name);
3590 osd_trans_exec_check(env, handle, OSD_OT_XATTR_SET);
3594 static int osd_object_sync(const struct lu_env *env, struct dt_object *dt,
3595 __u64 start, __u64 end)
3597 struct osd_object *obj = osd_dt_obj(dt);
3598 struct inode *inode = obj->oo_inode;
3599 struct osd_thread_info *info = osd_oti_get(env);
3600 struct dentry *dentry = &info->oti_obj_dentry;
3601 struct file *file = &info->oti_file;
3606 dentry->d_inode = inode;
3607 dentry->d_sb = inode->i_sb;
3608 file->f_path.dentry = dentry;
3609 file->f_mapping = inode->i_mapping;
3610 file->f_op = inode->i_fop;
3611 set_file_inode(file, inode);
3613 rc = ll_vfs_fsync_range(file, start, end, 0);
3622 static int osd_iam_index_probe(const struct lu_env *env, struct osd_object *o,
3623 const struct dt_index_features *feat)
3625 struct iam_descr *descr;
3627 if (osd_object_is_root(o))
3628 return feat == &dt_directory_features;
3630 LASSERT(o->oo_dir != NULL);
3632 descr = o->oo_dir->od_container.ic_descr;
3633 if (feat == &dt_directory_features) {
3634 if (descr->id_rec_size == sizeof(struct osd_fid_pack))
3640 feat->dif_keysize_min <= descr->id_key_size &&
3641 descr->id_key_size <= feat->dif_keysize_max &&
3642 feat->dif_recsize_min <= descr->id_rec_size &&
3643 descr->id_rec_size <= feat->dif_recsize_max &&
3644 !(feat->dif_flags & (DT_IND_VARKEY |
3645 DT_IND_VARREC | DT_IND_NONUNQ)) &&
3646 ergo(feat->dif_flags & DT_IND_UPDATE,
3647 1 /* XXX check that object (and file system) is
3652 static int osd_iam_container_init(const struct lu_env *env,
3653 struct osd_object *obj,
3654 struct osd_directory *dir)
3656 struct iam_container *bag = &dir->od_container;
3659 result = iam_container_init(bag, &dir->od_descr, obj->oo_inode);
3663 result = iam_container_setup(bag);
3665 obj->oo_dt.do_index_ops = &osd_index_iam_ops;
3667 iam_container_fini(bag);
3674 * Concurrency: no external locking is necessary.
3676 static int osd_index_try(const struct lu_env *env, struct dt_object *dt,
3677 const struct dt_index_features *feat)
3681 struct osd_object *obj = osd_dt_obj(dt);
3683 LINVRNT(osd_invariant(obj));
3685 if (osd_object_is_root(obj)) {
3686 dt->do_index_ops = &osd_index_ea_ops;
3688 } else if (feat == &dt_directory_features) {
3689 dt->do_index_ops = &osd_index_ea_ops;
3690 if (obj->oo_inode == NULL || S_ISDIR(obj->oo_inode->i_mode))
3695 } else if (unlikely(feat == &dt_otable_features)) {
3696 dt->do_index_ops = &osd_otable_ops;
3698 } else if (unlikely(feat == &dt_acct_features)) {
3699 dt->do_index_ops = &osd_acct_index_ops;
3702 } else if (!osd_has_index(obj)) {
3703 struct osd_directory *dir;
3708 spin_lock(&obj->oo_guard);
3709 if (obj->oo_dir == NULL)
3713 * Concurrent thread allocated container data.
3716 spin_unlock(&obj->oo_guard);
3718 * Now, that we have container data, serialize its
3721 down_write(&obj->oo_ext_idx_sem);
3723 * recheck under lock.
3725 if (!osd_has_index(obj))
3726 result = osd_iam_container_init(env, obj,
3730 up_write(&obj->oo_ext_idx_sem);
3738 if (result == 0 && skip_iam == 0) {
3739 if (!osd_iam_index_probe(env, obj, feat))
3742 LINVRNT(osd_invariant(obj));
3744 if (result == 0 && feat == &dt_quota_glb_features &&
3745 fid_seq(lu_object_fid(&dt->do_lu)) == FID_SEQ_QUOTA_GLB)
3746 result = osd_quota_migration(env, dt);
3751 static int osd_otable_it_attr_get(const struct lu_env *env,
3752 struct dt_object *dt,
3753 struct lu_attr *attr)
3759 static const struct dt_object_operations osd_obj_ops = {
3760 .do_read_lock = osd_object_read_lock,
3761 .do_write_lock = osd_object_write_lock,
3762 .do_read_unlock = osd_object_read_unlock,
3763 .do_write_unlock = osd_object_write_unlock,
3764 .do_write_locked = osd_object_write_locked,
3765 .do_attr_get = osd_attr_get,
3766 .do_declare_attr_set = osd_declare_attr_set,
3767 .do_attr_set = osd_attr_set,
3768 .do_ah_init = osd_ah_init,
3769 .do_declare_create = osd_declare_object_create,
3770 .do_create = osd_object_create,
3771 .do_declare_destroy = osd_declare_object_destroy,
3772 .do_destroy = osd_object_destroy,
3773 .do_index_try = osd_index_try,
3774 .do_declare_ref_add = osd_declare_object_ref_add,
3775 .do_ref_add = osd_object_ref_add,
3776 .do_declare_ref_del = osd_declare_object_ref_del,
3777 .do_ref_del = osd_object_ref_del,
3778 .do_xattr_get = osd_xattr_get,
3779 .do_declare_xattr_set = osd_declare_xattr_set,
3780 .do_xattr_set = osd_xattr_set,
3781 .do_declare_xattr_del = osd_declare_xattr_del,
3782 .do_xattr_del = osd_xattr_del,
3783 .do_xattr_list = osd_xattr_list,
3784 .do_object_sync = osd_object_sync,
3788 * dt_object_operations for interoperability mode
3789 * (i.e. to run 2.0 mds on 1.8 disk) (b11826)
3791 static const struct dt_object_operations osd_obj_ea_ops = {
3792 .do_read_lock = osd_object_read_lock,
3793 .do_write_lock = osd_object_write_lock,
3794 .do_read_unlock = osd_object_read_unlock,
3795 .do_write_unlock = osd_object_write_unlock,
3796 .do_write_locked = osd_object_write_locked,
3797 .do_attr_get = osd_attr_get,
3798 .do_declare_attr_set = osd_declare_attr_set,
3799 .do_attr_set = osd_attr_set,
3800 .do_ah_init = osd_ah_init,
3801 .do_declare_create = osd_declare_object_create,
3802 .do_create = osd_object_ea_create,
3803 .do_declare_destroy = osd_declare_object_destroy,
3804 .do_destroy = osd_object_destroy,
3805 .do_index_try = osd_index_try,
3806 .do_declare_ref_add = osd_declare_object_ref_add,
3807 .do_ref_add = osd_object_ref_add,
3808 .do_declare_ref_del = osd_declare_object_ref_del,
3809 .do_ref_del = osd_object_ref_del,
3810 .do_xattr_get = osd_xattr_get,
3811 .do_declare_xattr_set = osd_declare_xattr_set,
3812 .do_xattr_set = osd_xattr_set,
3813 .do_declare_xattr_del = osd_declare_xattr_del,
3814 .do_xattr_del = osd_xattr_del,
3815 .do_xattr_list = osd_xattr_list,
3816 .do_object_sync = osd_object_sync,
3819 static const struct dt_object_operations osd_obj_otable_it_ops = {
3820 .do_attr_get = osd_otable_it_attr_get,
3821 .do_index_try = osd_index_try,
3824 static int osd_index_declare_iam_delete(const struct lu_env *env,
3825 struct dt_object *dt,
3826 const struct dt_key *key,
3827 struct thandle *handle)
3829 struct osd_thandle *oh;
3831 oh = container_of0(handle, struct osd_thandle, ot_super);
3832 LASSERT(oh->ot_handle == NULL);
3834 /* Recycle may cause additional three blocks to be changed. */
3835 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3836 osd_dto_credits_noquota[DTO_INDEX_DELETE] + 3);
3842 * delete a (key, value) pair from index \a dt specified by \a key
3844 * \param dt osd index object
3845 * \param key key for index
3846 * \param rec record reference
3847 * \param handle transaction handler
3850 * \retval -ve failure
3852 static int osd_index_iam_delete(const struct lu_env *env, struct dt_object *dt,
3853 const struct dt_key *key,
3854 struct thandle *handle)
3856 struct osd_thread_info *oti = osd_oti_get(env);
3857 struct osd_object *obj = osd_dt_obj(dt);
3858 struct osd_thandle *oh;
3859 struct iam_path_descr *ipd;
3860 struct iam_container *bag = &obj->oo_dir->od_container;
3864 if (!dt_object_exists(dt))
3867 LINVRNT(osd_invariant(obj));
3868 LASSERT(!dt_object_remote(dt));
3869 LASSERT(bag->ic_object == obj->oo_inode);
3870 LASSERT(handle != NULL);
3872 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
3874 ipd = osd_idx_ipd_get(env, bag);
3875 if (unlikely(ipd == NULL))
3878 oh = container_of0(handle, struct osd_thandle, ot_super);
3879 LASSERT(oh->ot_handle != NULL);
3880 LASSERT(oh->ot_handle->h_transaction != NULL);
3882 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
3883 /* swab quota uid/gid provided by caller */
3884 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
3885 key = (const struct dt_key *)&oti->oti_quota_id;
3888 rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
3889 osd_ipd_put(env, bag, ipd);
3890 LINVRNT(osd_invariant(obj));
3891 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
3895 static int osd_index_declare_ea_delete(const struct lu_env *env,
3896 struct dt_object *dt,
3897 const struct dt_key *key,
3898 struct thandle *handle)
3900 struct osd_thandle *oh;
3901 struct inode *inode;
3905 LASSERT(!dt_object_remote(dt));
3906 LASSERT(handle != NULL);
3908 oh = container_of0(handle, struct osd_thandle, ot_super);
3909 LASSERT(oh->ot_handle == NULL);
3911 /* due to DNE we may need to remove an agent inode */
3912 osd_trans_declare_op(env, oh, OSD_OT_DELETE,
3913 osd_dto_credits_noquota[DTO_INDEX_DELETE] +
3914 osd_dto_credits_noquota[DTO_OBJECT_DELETE]);
3916 inode = osd_dt_obj(dt)->oo_inode;
3920 rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
3921 0, oh, osd_dt_obj(dt), true, NULL, false);
3925 static inline int osd_get_fid_from_dentry(struct ldiskfs_dir_entry_2 *de,
3928 struct osd_fid_pack *rec;
3931 if (de->file_type & LDISKFS_DIRENT_LUFID) {
3932 rec = (struct osd_fid_pack *) (de->name + de->name_len + 1);
3933 rc = osd_fid_unpack((struct lu_fid *)fid, rec);
3934 if (rc == 0 && unlikely(!fid_is_sane((struct lu_fid *)fid)))
3940 static int osd_remote_fid(const struct lu_env *env, struct osd_device *osd,
3941 const struct lu_fid *fid)
3943 struct seq_server_site *ss = osd_seq_site(osd);
3946 /* FID seqs not in FLDB, must be local seq */
3947 if (unlikely(!fid_seq_in_fldb(fid_seq(fid))))
3950 /* If FLD is not being initialized yet, it only happens during the
3951 * initialization, likely during mgs initialization, and we assume
3952 * this is local FID. */
3953 if (ss == NULL || ss->ss_server_fld == NULL)
3956 /* Only check the local FLDB here */
3957 if (osd_seq_exists(env, osd, fid_seq(fid)))
3964 * Index delete function for interoperability mode (b11826).
3965 * It will remove the directory entry added by osd_index_ea_insert().
3966 * This entry is needed to maintain name->fid mapping.
3968 * \param key, key i.e. file entry to be deleted
3970 * \retval 0, on success
3971 * \retval -ve, on error
3973 static int osd_index_ea_delete(const struct lu_env *env, struct dt_object *dt,
3974 const struct dt_key *key, struct thandle *handle)
3976 struct osd_object *obj = osd_dt_obj(dt);
3977 struct inode *dir = obj->oo_inode;
3978 struct dentry *dentry;
3979 struct osd_thandle *oh;
3980 struct ldiskfs_dir_entry_2 *de = NULL;
3981 struct buffer_head *bh;
3982 struct htree_lock *hlock = NULL;
3983 struct lu_fid *fid = &osd_oti_get(env)->oti_fid;
3984 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
3988 if (!dt_object_exists(dt))
3991 LINVRNT(osd_invariant(obj));
3992 LASSERT(!dt_object_remote(dt));
3993 LASSERT(handle != NULL);
3995 osd_trans_exec_op(env, handle, OSD_OT_DELETE);
3997 oh = container_of(handle, struct osd_thandle, ot_super);
3998 LASSERT(oh->ot_handle != NULL);
3999 LASSERT(oh->ot_handle->h_transaction != NULL);
4001 ll_vfs_dq_init(dir);
4002 dentry = osd_child_dentry_get(env, obj,
4003 (char *)key, strlen((char *)key));
4005 if (obj->oo_hl_head != NULL) {
4006 hlock = osd_oti_get(env)->oti_hlock;
4007 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
4008 dir, LDISKFS_HLOCK_DEL);
4010 down_write(&obj->oo_ext_idx_sem);
4013 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
4015 /* If this is not the ".." entry, it might be a remote DNE
4016 * entry and we need to check if the FID is for a remote
4017 * MDT. If the FID is not in the directory entry (e.g.
4018 * upgraded 1.8 filesystem without dirdata enabled) then
4019 * we need to get the FID from the LMA. For a remote directory
4020 * there HAS to be an LMA, it cannot be an IGIF inode in this
4023 * Delete the entry before the agent inode in order to
4024 * simplify error handling. At worst an error after deleting
4025 * the entry first might leak the agent inode afterward. The
4026 * reverse would need filesystem abort in case of error deleting
4027 * the entry after the agent had been removed, or leave a
4028 * dangling entry pointing at a random inode. */
4029 if (strcmp((char *)key, dotdot) != 0) {
4030 LASSERT(de != NULL);
4031 rc = osd_get_fid_from_dentry(de, (struct dt_rec *)fid);
4032 if (rc == -ENODATA) {
4033 /* can't get FID, postpone to the end of the
4034 * transaction when iget() is safe */
4035 osd_schedule_agent_inode_removal(env, oh,
4036 le32_to_cpu(de->inode));
4037 } else if (rc == 0 &&
4038 unlikely(osd_remote_fid(env, osd, fid))) {
4039 osd_schedule_agent_inode_removal(env, oh,
4040 le32_to_cpu(de->inode));
4043 rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
4049 ldiskfs_htree_unlock(hlock);
4051 up_write(&obj->oo_ext_idx_sem);
4056 /* For inode on the remote MDT, .. will point to
4057 * /Agent directory, Check whether it needs to delete
4058 * from agent directory */
4059 if (unlikely(strcmp((char *)key, dotdot) == 0)) {
4060 rc = osd_delete_from_remote_parent(env, osd_obj2dev(obj), obj,
4062 if (rc != 0 && rc != -ENOENT) {
4063 CERROR("%s: delete agent inode "DFID": rc = %d\n",
4064 osd_name(osd), PFID(fid), rc);
4074 LASSERT(osd_invariant(obj));
4075 osd_trans_exec_check(env, handle, OSD_OT_DELETE);
4080 * Lookup index for \a key and copy record to \a rec.
4082 * \param dt osd index object
4083 * \param key key for index
4084 * \param rec record reference
4086 * \retval +ve success : exact mach
4087 * \retval 0 return record with key not greater than \a key
4088 * \retval -ve failure
4090 static int osd_index_iam_lookup(const struct lu_env *env, struct dt_object *dt,
4091 struct dt_rec *rec, const struct dt_key *key)
4093 struct osd_object *obj = osd_dt_obj(dt);
4094 struct iam_path_descr *ipd;
4095 struct iam_container *bag = &obj->oo_dir->od_container;
4096 struct osd_thread_info *oti = osd_oti_get(env);
4097 struct iam_iterator *it = &oti->oti_idx_it;
4098 struct iam_rec *iam_rec;
4102 if (!dt_object_exists(dt))
4105 LASSERT(osd_invariant(obj));
4106 LASSERT(!dt_object_remote(dt));
4107 LASSERT(bag->ic_object == obj->oo_inode);
4109 ipd = osd_idx_ipd_get(env, bag);
4113 /* got ipd now we can start iterator. */
4114 iam_it_init(it, bag, 0, ipd);
4116 if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
4117 /* swab quota uid/gid provided by caller */
4118 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4119 key = (const struct dt_key *)&oti->oti_quota_id;
4122 rc = iam_it_get(it, (struct iam_key *)key);
4124 if (S_ISDIR(obj->oo_inode->i_mode))
4125 iam_rec = (struct iam_rec *)oti->oti_ldp;
4127 iam_rec = (struct iam_rec *) rec;
4129 iam_reccpy(&it->ii_path.ip_leaf, (struct iam_rec *)iam_rec);
4131 if (S_ISDIR(obj->oo_inode->i_mode))
4132 osd_fid_unpack((struct lu_fid *) rec,
4133 (struct osd_fid_pack *)iam_rec);
4134 else if (fid_is_quota(lu_object_fid(&dt->do_lu)))
4135 osd_quota_unpack(obj, rec);
4140 osd_ipd_put(env, bag, ipd);
4142 LINVRNT(osd_invariant(obj));
4147 static int osd_index_declare_iam_insert(const struct lu_env *env,
4148 struct dt_object *dt,
4149 const struct dt_rec *rec,
4150 const struct dt_key *key,
4151 struct thandle *handle)
4153 struct osd_thandle *oh;
4155 LASSERT(handle != NULL);
4157 oh = container_of0(handle, struct osd_thandle, ot_super);
4158 LASSERT(oh->ot_handle == NULL);
4160 osd_trans_declare_op(env, oh, OSD_OT_INSERT,
4161 osd_dto_credits_noquota[DTO_INDEX_INSERT]);
4167 * Inserts (key, value) pair in \a dt index object.
4169 * \param dt osd index object
4170 * \param key key for index
4171 * \param rec record reference
4172 * \param th transaction handler
4175 * \retval -ve failure
4177 static int osd_index_iam_insert(const struct lu_env *env, struct dt_object *dt,
4178 const struct dt_rec *rec,
4179 const struct dt_key *key, struct thandle *th,
4182 struct osd_object *obj = osd_dt_obj(dt);
4183 struct iam_path_descr *ipd;
4184 struct osd_thandle *oh;
4185 struct iam_container *bag;
4186 struct osd_thread_info *oti = osd_oti_get(env);
4187 struct iam_rec *iam_rec;
4191 if (!dt_object_exists(dt))
4194 LINVRNT(osd_invariant(obj));
4195 LASSERT(!dt_object_remote(dt));
4197 bag = &obj->oo_dir->od_container;
4198 LASSERT(bag->ic_object == obj->oo_inode);
4199 LASSERT(th != NULL);
4201 osd_trans_exec_op(env, th, OSD_OT_INSERT);
4203 ipd = osd_idx_ipd_get(env, bag);
4204 if (unlikely(ipd == NULL))
4207 oh = container_of0(th, struct osd_thandle, ot_super);
4208 LASSERT(oh->ot_handle != NULL);
4209 LASSERT(oh->ot_handle->h_transaction != NULL);
4210 if (S_ISDIR(obj->oo_inode->i_mode)) {
4211 iam_rec = (struct iam_rec *)oti->oti_ldp;
4212 osd_fid_pack((struct osd_fid_pack *)iam_rec, rec, &oti->oti_fid);
4213 } else if (fid_is_quota(lu_object_fid(&dt->do_lu))) {
4214 /* pack quota uid/gid */
4215 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4216 key = (const struct dt_key *)&oti->oti_quota_id;
4217 /* pack quota record */
4218 rec = osd_quota_pack(obj, rec, &oti->oti_quota_rec);
4219 iam_rec = (struct iam_rec *)rec;
4221 iam_rec = (struct iam_rec *)rec;
4224 rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
4226 osd_ipd_put(env, bag, ipd);
4227 LINVRNT(osd_invariant(obj));
4228 osd_trans_exec_check(env, th, OSD_OT_INSERT);
4233 * Calls ldiskfs_add_entry() to add directory entry
4234 * into the directory. This is required for
4235 * interoperability mode (b11826)
4237 * \retval 0, on success
4238 * \retval -ve, on error
4240 static int __osd_ea_add_rec(struct osd_thread_info *info,
4241 struct osd_object *pobj, struct inode *cinode,
4242 const char *name, const struct lu_fid *fid,
4243 struct htree_lock *hlock, struct thandle *th)
4245 struct ldiskfs_dentry_param *ldp;
4246 struct dentry *child;
4247 struct osd_thandle *oth;
4250 oth = container_of(th, struct osd_thandle, ot_super);
4251 LASSERT(oth->ot_handle != NULL);
4252 LASSERT(oth->ot_handle->h_transaction != NULL);
4253 LASSERT(pobj->oo_inode);
4255 ldp = (struct ldiskfs_dentry_param *)info->oti_ldp;
4256 if (unlikely(pobj->oo_inode ==
4257 osd_sb(osd_obj2dev(pobj))->s_root->d_inode))
4260 osd_get_ldiskfs_dirent_param(ldp, fid);
4261 child = osd_child_dentry_get(info->oti_env, pobj, name, strlen(name));
4262 child->d_fsdata = (void *)ldp;
4263 ll_vfs_dq_init(pobj->oo_inode);
4264 rc = osd_ldiskfs_add_entry(info, oth->ot_handle, child,
4266 if (rc == 0 && OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_TYPE)) {
4267 struct ldiskfs_dir_entry_2 *de;
4268 struct buffer_head *bh;
4271 bh = osd_ldiskfs_find_entry(pobj->oo_inode, &child->d_name, &de,
4274 rc1 = ldiskfs_journal_get_write_access(oth->ot_handle,
4277 if (S_ISDIR(cinode->i_mode))
4278 de->file_type = LDISKFS_DIRENT_LUFID |
4279 LDISKFS_FT_REG_FILE;
4281 de->file_type = LDISKFS_DIRENT_LUFID |
4283 ldiskfs_handle_dirty_metadata(oth->ot_handle,
4294 * Calls ldiskfs_add_dot_dotdot() to add dot and dotdot entries
4295 * into the directory.Also sets flags into osd object to
4296 * indicate dot and dotdot are created. This is required for
4297 * interoperability mode (b11826)
4299 * \param dir directory for dot and dotdot fixup.
4300 * \param obj child object for linking
4302 * \retval 0, on success
4303 * \retval -ve, on error
4305 static int osd_add_dot_dotdot(struct osd_thread_info *info,
4306 struct osd_object *dir,
4307 struct inode *parent_dir, const char *name,
4308 const struct lu_fid *dot_fid,
4309 const struct lu_fid *dot_dot_fid,
4312 struct inode *inode = dir->oo_inode;
4313 struct osd_thandle *oth;
4316 oth = container_of(th, struct osd_thandle, ot_super);
4317 LASSERT(oth->ot_handle->h_transaction != NULL);
4318 LASSERT(S_ISDIR(dir->oo_inode->i_mode));
4320 if (strcmp(name, dot) == 0) {
4321 if (dir->oo_compat_dot_created) {
4324 LASSERT(inode->i_ino == parent_dir->i_ino);
4325 dir->oo_compat_dot_created = 1;
4328 } else if (strcmp(name, dotdot) == 0) {
4329 if (!dir->oo_compat_dot_created)
4331 /* in case of rename, dotdot is already created */
4332 if (dir->oo_compat_dotdot_created) {
4333 return __osd_ea_add_rec(info, dir, parent_dir, name,
4334 dot_dot_fid, NULL, th);
4337 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_PARENT)) {
4338 struct lu_fid tfid = *dot_dot_fid;
4341 result = osd_add_dot_dotdot_internal(info,
4342 dir->oo_inode, parent_dir, dot_fid,
4345 result = osd_add_dot_dotdot_internal(info,
4346 dir->oo_inode, parent_dir, dot_fid,
4351 dir->oo_compat_dotdot_created = 1;
4359 * It will call the appropriate osd_add* function and return the
4360 * value, return by respective functions.
4362 static int osd_ea_add_rec(const struct lu_env *env, struct osd_object *pobj,
4363 struct inode *cinode, const char *name,
4364 const struct lu_fid *fid, struct thandle *th)
4366 struct osd_thread_info *info = osd_oti_get(env);
4367 struct htree_lock *hlock;
4370 hlock = pobj->oo_hl_head != NULL ? info->oti_hlock : NULL;
4372 if (name[0] == '.' && (name[1] == '\0' || (name[1] == '.' &&
4374 if (hlock != NULL) {
4375 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
4378 down_write(&pobj->oo_ext_idx_sem);
4381 rc = osd_add_dot_dotdot(info, pobj, cinode, name,
4382 lu_object_fid(&pobj->oo_dt.do_lu),
4385 if (hlock != NULL) {
4386 ldiskfs_htree_lock(hlock, pobj->oo_hl_head,
4387 pobj->oo_inode, LDISKFS_HLOCK_ADD);
4389 down_write(&pobj->oo_ext_idx_sem);
4392 if (OBD_FAIL_CHECK(OBD_FAIL_FID_INDIR)) {
4393 struct lu_fid *tfid = &info->oti_fid;
4397 rc = __osd_ea_add_rec(info, pobj, cinode, name,
4400 rc = __osd_ea_add_rec(info, pobj, cinode, name, fid,
4405 ldiskfs_htree_unlock(hlock);
4407 up_write(&pobj->oo_ext_idx_sem);
4413 osd_consistency_check(struct osd_thread_info *oti, struct osd_device *dev,
4414 struct osd_idmap_cache *oic)
4416 struct osd_scrub *scrub = &dev->od_scrub;
4417 struct lu_fid *fid = &oic->oic_fid;
4418 struct osd_inode_id *id = &oti->oti_id;
4423 if (!fid_is_norm(fid) && !fid_is_igif(fid))
4426 if (scrub->os_pos_current > id->oii_ino)
4430 rc = osd_oi_lookup(oti, dev, fid, id, 0);
4431 if (rc == -ENOENT) {
4432 struct inode *inode;
4435 inode = osd_iget(oti, dev, &oic->oic_lid);
4437 /* The inode has been removed (by race maybe). */
4438 if (IS_ERR(inode)) {
4439 rc = PTR_ERR(inode);
4441 RETURN(rc == -ESTALE ? -ENOENT : rc);
4445 /* The OI mapping is lost. */
4446 if (id->oii_gen != OSD_OII_NOGEN)
4449 /* The inode may has been reused by others, we do not know,
4450 * leave it to be handled by subsequent osd_fid_lookup(). */
4452 } else if (rc != 0 || osd_id_eq(id, &oic->oic_lid)) {
4457 if (thread_is_running(&scrub->os_thread)) {
4458 rc = osd_oii_insert(dev, oic, rc == -ENOENT);
4459 /* There is race condition between osd_oi_lookup and OI scrub.
4460 * The OI scrub finished just after osd_oi_lookup() failure.
4461 * Under such case, it is unnecessary to trigger OI scrub again,
4462 * but try to call osd_oi_lookup() again. */
4463 if (unlikely(rc == -EAGAIN))
4469 if (!dev->od_noscrub && ++once == 1) {
4470 rc = osd_scrub_start(dev, SS_AUTO_PARTIAL | SS_CLEAR_DRYRUN |
4472 CDEBUG(D_LFSCK | D_CONSOLE, "%.16s: trigger OI scrub by RPC "
4473 "for "DFID", rc = %d [2]\n",
4474 LDISKFS_SB(osd_sb(dev))->s_es->s_volume_name,
4476 if (rc == 0 || rc == -EALREADY)
4483 static int osd_fail_fid_lookup(struct osd_thread_info *oti,
4484 struct osd_device *dev,
4485 struct osd_idmap_cache *oic,
4486 struct lu_fid *fid, __u32 ino)
4488 struct lustre_mdt_attrs *lma = &oti->oti_mdt_attrs;
4489 struct inode *inode;
4492 osd_id_gen(&oic->oic_lid, ino, OSD_OII_NOGEN);
4493 inode = osd_iget(oti, dev, &oic->oic_lid);
4494 if (IS_ERR(inode)) {
4495 fid_zero(&oic->oic_fid);
4496 return PTR_ERR(inode);
4499 rc = osd_get_lma(oti, inode, &oti->oti_obj_dentry, lma);
4502 fid_zero(&oic->oic_fid);
4504 *fid = oic->oic_fid = lma->lma_self_fid;
4508 void osd_add_oi_cache(struct osd_thread_info *info, struct osd_device *osd,
4509 struct osd_inode_id *id, const struct lu_fid *fid)
4511 CDEBUG(D_INODE, "add "DFID" %u:%u to info %p\n", PFID(fid),
4512 id->oii_ino, id->oii_gen, info);
4513 info->oti_cache.oic_lid = *id;
4514 info->oti_cache.oic_fid = *fid;
4515 info->oti_cache.oic_dev = osd;
4519 * Get parent FID from the linkEA.
4521 * For a directory which parent resides on remote MDT, to satisfy the
4522 * local e2fsck, we insert it into the /REMOTE_PARENT_DIR locally. On
4523 * the other hand, to make the lookup(..) on the directory can return
4524 * the real parent FID, we append the real parent FID after its ".."
4525 * name entry in the /REMOTE_PARENT_DIR.
4527 * Unfortunately, such PFID-in-dirent cannot be preserved via file-level
4528 * backup. So after the restore, we cannot get the right parent FID from
4529 * its ".." name entry in the /REMOTE_PARENT_DIR. Under such case, since
4530 * we have stored the real parent FID in the directory object's linkEA,
4531 * we can parse the linkEA for the real parent FID.
4533 * \param[in] env pointer to the thread context
4534 * \param[in] obj pointer to the object to be handled
4535 * \param[out]fid pointer to the buffer to hold the parent FID
4537 * \retval 0 for getting the real parent FID successfully
4538 * \retval negative error number on failure
4540 static int osd_get_pfid_from_linkea(const struct lu_env *env,
4541 struct osd_object *obj,
4544 struct osd_thread_info *oti = osd_oti_get(env);
4545 struct lu_buf *buf = &oti->oti_big_buf;
4546 struct dentry *dentry = &oti->oti_obj_dentry;
4547 struct inode *inode = obj->oo_inode;
4548 struct linkea_data ldata = { NULL };
4553 if (!S_ISDIR(inode->i_mode))
4557 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
4558 buf->lb_buf, buf->lb_len);
4559 if (rc == -ERANGE) {
4560 rc = __osd_xattr_get(inode, dentry, XATTR_NAME_LINK,
4563 lu_buf_realloc(buf, rc);
4564 if (buf->lb_buf == NULL)
4571 if (unlikely(rc == 0))
4577 if (unlikely(buf->lb_buf == NULL)) {
4578 lu_buf_realloc(buf, rc);
4579 if (buf->lb_buf == NULL)
4586 rc = linkea_init(&ldata);
4588 linkea_first_entry(&ldata);
4589 linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, NULL, fid);
4596 * Calls ->lookup() to find dentry. From dentry get inode and
4597 * read inode's ea to get fid. This is required for interoperability
4600 * \retval 0, on success
4601 * \retval -ve, on error
4603 static int osd_ea_lookup_rec(const struct lu_env *env, struct osd_object *obj,
4604 struct dt_rec *rec, const struct dt_key *key)
4606 struct inode *dir = obj->oo_inode;
4607 struct dentry *dentry;
4608 struct ldiskfs_dir_entry_2 *de;
4609 struct buffer_head *bh;
4610 struct lu_fid *fid = (struct lu_fid *) rec;
4611 struct htree_lock *hlock = NULL;
4616 LASSERT(dir->i_op != NULL);
4617 LASSERT(dir->i_op->lookup != NULL);
4619 dentry = osd_child_dentry_get(env, obj,
4620 (char *)key, strlen((char *)key));
4622 if (obj->oo_hl_head != NULL) {
4623 hlock = osd_oti_get(env)->oti_hlock;
4624 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
4625 dir, LDISKFS_HLOCK_LOOKUP);
4627 down_read(&obj->oo_ext_idx_sem);
4630 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
4632 struct osd_thread_info *oti = osd_oti_get(env);
4633 struct osd_inode_id *id = &oti->oti_id;
4634 struct osd_idmap_cache *oic = &oti->oti_cache;
4635 struct osd_device *dev = osd_obj2dev(obj);
4637 ino = le32_to_cpu(de->inode);
4638 if (OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP)) {
4640 rc = osd_fail_fid_lookup(oti, dev, oic, fid, ino);
4644 rc = osd_get_fid_from_dentry(de, rec);
4646 /* done with de, release bh */
4649 if (unlikely(ino == osd_remote_parent_ino(dev))) {
4650 const char *name = (const char *)key;
4652 /* If the parent is on remote MDT, and there
4653 * is no FID-in-dirent, then we have to get
4654 * the parent FID from the linkEA. */
4655 if (likely(strlen(name) == 2 &&
4656 name[0] == '.' && name[1] == '.'))
4657 rc = osd_get_pfid_from_linkea(env, obj,
4660 rc = osd_ea_fid_get(env, obj, ino, fid, id);
4663 osd_id_gen(id, ino, OSD_OII_NOGEN);
4666 if (rc != 0 || osd_remote_fid(env, dev, fid)) {
4667 fid_zero(&oic->oic_fid);
4672 osd_add_oi_cache(osd_oti_get(env), osd_obj2dev(obj), id, fid);
4673 rc = osd_consistency_check(oti, dev, oic);
4675 fid_zero(&oic->oic_fid);
4684 ldiskfs_htree_unlock(hlock);
4686 up_read(&obj->oo_ext_idx_sem);
4691 * Put the osd object once done with it.
4693 * \param obj osd object that needs to be put
4695 static inline void osd_object_put(const struct lu_env *env,
4696 struct osd_object *obj)
4698 lu_object_put(env, &obj->oo_dt.do_lu);
4701 static int osd_index_declare_ea_insert(const struct lu_env *env,
4702 struct dt_object *dt,
4703 const struct dt_rec *rec,
4704 const struct dt_key *key,
4705 struct thandle *handle)
4707 struct osd_thandle *oh;
4708 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4709 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
4710 const struct lu_fid *fid = rec1->rec_fid;
4711 int credits, rc = 0;
4712 struct osd_idmap_cache *idc;
4715 LASSERT(!dt_object_remote(dt));
4716 LASSERT(handle != NULL);
4717 LASSERT(fid != NULL);
4718 LASSERT(rec1->rec_type != 0);
4720 oh = container_of0(handle, struct osd_thandle, ot_super);
4721 LASSERT(oh->ot_handle == NULL);
4723 credits = osd_dto_credits_noquota[DTO_INDEX_INSERT];
4725 /* we can't call iget() while a transactions is running
4726 * (this can lead to a deadlock), but we need to know
4727 * inum and object type. so we find this information at
4728 * declaration and cache in per-thread info */
4729 idc = osd_idc_find_or_init(env, osd, fid);
4731 RETURN(PTR_ERR(idc));
4732 if (idc->oic_remote) {
4733 /* a reference to remote inode is represented by an
4734 * agent inode which we have to create */
4735 credits += osd_dto_credits_noquota[DTO_OBJECT_CREATE];
4736 credits += osd_dto_credits_noquota[DTO_INDEX_INSERT];
4739 osd_trans_declare_op(env, oh, OSD_OT_INSERT, credits);
4741 if (osd_dt_obj(dt)->oo_inode != NULL) {
4742 struct inode *inode = osd_dt_obj(dt)->oo_inode;
4744 /* We ignore block quota on meta pool (MDTs), so needn't
4745 * calculate how many blocks will be consumed by this index
4747 rc = osd_declare_inode_qid(env, i_uid_read(inode),
4748 i_gid_read(inode), 0, oh,
4749 osd_dt_obj(dt), true, NULL, false);
4756 * Index add function for interoperability mode (b11826).
4757 * It will add the directory entry.This entry is needed to
4758 * maintain name->fid mapping.
4760 * \param key it is key i.e. file entry to be inserted
4761 * \param rec it is value of given key i.e. fid
4763 * \retval 0, on success
4764 * \retval -ve, on error
4766 static int osd_index_ea_insert(const struct lu_env *env, struct dt_object *dt,
4767 const struct dt_rec *rec,
4768 const struct dt_key *key, struct thandle *th,
4771 struct osd_object *obj = osd_dt_obj(dt);
4772 struct osd_device *osd = osd_dev(dt->do_lu.lo_dev);
4773 struct dt_insert_rec *rec1 = (struct dt_insert_rec *)rec;
4774 const struct lu_fid *fid = rec1->rec_fid;
4775 const char *name = (const char *)key;
4776 struct osd_thread_info *oti = osd_oti_get(env);
4777 struct inode *child_inode = NULL;
4778 struct osd_idmap_cache *idc;
4782 if (!dt_object_exists(dt))
4785 LASSERT(osd_invariant(obj));
4786 LASSERT(!dt_object_remote(dt));
4787 LASSERT(th != NULL);
4789 osd_trans_exec_op(env, th, OSD_OT_INSERT);
4791 LASSERTF(fid_is_sane(fid), "fid"DFID" is insane!\n", PFID(fid));
4793 idc = osd_idc_find(env, osd, fid);
4794 if (unlikely(idc == NULL)) {
4795 /* this dt_insert() wasn't declared properly, so
4796 * FID is missing in OI cache. we better do not
4797 * lookup FID in FLDB/OI and don't risk to deadlock,
4798 * but in some special cases (lfsck testing, etc)
4799 * it's much simpler than fixing a caller */
4800 CERROR("%s: "DFID" wasn't declared for insert\n",
4801 osd_name(osd), PFID(fid));
4803 idc = osd_idc_find_or_init(env, osd, fid);
4805 RETURN(PTR_ERR(idc));
4808 if (idc->oic_remote) {
4809 /* Insert remote entry */
4810 if (strcmp(name, dotdot) == 0 && strlen(name) == 2) {
4811 struct osd_mdobj_map *omm = osd->od_mdt_map;
4812 struct osd_thandle *oh;
4814 /* If parent on remote MDT, we need put this object
4816 oh = container_of(th, typeof(*oh), ot_super);
4817 rc = osd_add_to_remote_parent(env, osd, obj, oh);
4819 CERROR("%s: add "DFID" error: rc = %d\n",
4821 PFID(lu_object_fid(&dt->do_lu)), rc);
4825 child_inode = igrab(omm->omm_remote_parent->d_inode);
4827 child_inode = osd_create_local_agent_inode(env, osd,
4828 obj, fid, rec1->rec_type & S_IFMT, th);
4829 if (IS_ERR(child_inode))
4830 RETURN(PTR_ERR(child_inode));
4833 /* Insert local entry */
4834 if (unlikely(idc->oic_lid.oii_ino == 0)) {
4835 /* for a reason OI cache wasn't filled properly */
4836 CERROR("%s: OIC for "DFID" isn't filled\n",
4837 osd_name(osd), PFID(fid));
4840 child_inode = oti->oti_inode;
4841 if (unlikely(child_inode == NULL)) {
4842 struct ldiskfs_inode_info *lii;
4846 child_inode = oti->oti_inode = &lii->vfs_inode;
4848 child_inode->i_sb = osd_sb(osd);
4849 child_inode->i_ino = idc->oic_lid.oii_ino;
4850 child_inode->i_mode = rec1->rec_type & S_IFMT;
4853 rc = osd_ea_add_rec(env, obj, child_inode, name, fid, th);
4855 CDEBUG(D_INODE, "parent %lu insert %s:%lu rc = %d\n",
4856 obj->oo_inode->i_ino, name, child_inode->i_ino, rc);
4858 if (child_inode && child_inode != oti->oti_inode)
4860 LASSERT(osd_invariant(obj));
4861 osd_trans_exec_check(env, th, OSD_OT_INSERT);
4866 * Initialize osd Iterator for given osd index object.
4868 * \param dt osd index object
4871 static struct dt_it *osd_it_iam_init(const struct lu_env *env,
4872 struct dt_object *dt,
4875 struct osd_it_iam *it;
4876 struct osd_object *obj = osd_dt_obj(dt);
4877 struct lu_object *lo = &dt->do_lu;
4878 struct iam_path_descr *ipd;
4879 struct iam_container *bag = &obj->oo_dir->od_container;
4881 if (!dt_object_exists(dt))
4882 return ERR_PTR(-ENOENT);
4886 return ERR_PTR(-ENOMEM);
4888 ipd = osd_it_ipd_get(env, bag);
4889 if (likely(ipd != NULL)) {
4893 iam_it_init(&it->oi_it, bag, IAM_IT_MOVE, ipd);
4894 return (struct dt_it *)it;
4897 return ERR_PTR(-ENOMEM);
4902 * free given Iterator.
4905 static void osd_it_iam_fini(const struct lu_env *env, struct dt_it *di)
4907 struct osd_it_iam *it = (struct osd_it_iam *)di;
4908 struct osd_object *obj = it->oi_obj;
4910 iam_it_fini(&it->oi_it);
4911 osd_ipd_put(env, &obj->oo_dir->od_container, it->oi_ipd);
4912 lu_object_put(env, &obj->oo_dt.do_lu);
4917 * Move Iterator to record specified by \a key
4919 * \param di osd iterator
4920 * \param key key for index
4922 * \retval +ve di points to record with least key not larger than key
4923 * \retval 0 di points to exact matched key
4924 * \retval -ve failure
4927 static int osd_it_iam_get(const struct lu_env *env,
4928 struct dt_it *di, const struct dt_key *key)
4930 struct osd_thread_info *oti = osd_oti_get(env);
4931 struct osd_it_iam *it = (struct osd_it_iam *)di;
4933 if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
4934 /* swab quota uid/gid */
4935 oti->oti_quota_id = cpu_to_le64(*((__u64 *)key));
4936 key = (struct dt_key *)&oti->oti_quota_id;
4939 return iam_it_get(&it->oi_it, (const struct iam_key *)key);
4945 * \param di osd iterator
4947 static void osd_it_iam_put(const struct lu_env *env, struct dt_it *di)
4949 struct osd_it_iam *it = (struct osd_it_iam *)di;
4951 iam_it_put(&it->oi_it);
4955 * Move iterator by one record
4957 * \param di osd iterator
4959 * \retval +1 end of container reached
4961 * \retval -ve failure
4964 static int osd_it_iam_next(const struct lu_env *env, struct dt_it *di)
4966 struct osd_it_iam *it = (struct osd_it_iam *)di;
4968 return iam_it_next(&it->oi_it);
4972 * Return pointer to the key under iterator.
4975 static struct dt_key *osd_it_iam_key(const struct lu_env *env,
4976 const struct dt_it *di)
4978 struct osd_thread_info *oti = osd_oti_get(env);
4979 struct osd_it_iam *it = (struct osd_it_iam *)di;
4980 struct osd_object *obj = it->oi_obj;
4983 key = (struct dt_key *)iam_it_key_get(&it->oi_it);
4985 if (!IS_ERR(key) && fid_is_quota(lu_object_fid(&obj->oo_dt.do_lu))) {
4986 /* swab quota uid/gid */
4987 oti->oti_quota_id = le64_to_cpu(*((__u64 *)key));
4988 key = (struct dt_key *)&oti->oti_quota_id;
4995 * Return size of key under iterator (in bytes)
4998 static int osd_it_iam_key_size(const struct lu_env *env, const struct dt_it *di)
5000 struct osd_it_iam *it = (struct osd_it_iam *)di;
5002 return iam_it_key_size(&it->oi_it);
5006 osd_it_append_attrs(struct lu_dirent *ent, int len, __u16 type)
5008 /* check if file type is required */
5009 if (ent->lde_attrs & LUDA_TYPE) {
5010 struct luda_type *lt;
5011 int align = sizeof(*lt) - 1;
5013 len = (len + align) & ~align;
5014 lt = (struct luda_type *)(ent->lde_name + len);
5015 lt->lt_type = cpu_to_le16(DTTOIF(type));
5018 ent->lde_attrs = cpu_to_le32(ent->lde_attrs);
5022 * build lu direct from backend fs dirent.
5026 osd_it_pack_dirent(struct lu_dirent *ent, struct lu_fid *fid, __u64 offset,
5027 char *name, __u16 namelen, __u16 type, __u32 attr)
5029 ent->lde_attrs = attr | LUDA_FID;
5030 fid_cpu_to_le(&ent->lde_fid, fid);
5032 ent->lde_hash = cpu_to_le64(offset);
5033 ent->lde_reclen = cpu_to_le16(lu_dirent_calc_size(namelen, attr));
5035 strncpy(ent->lde_name, name, namelen);
5036 ent->lde_name[namelen] = '\0';
5037 ent->lde_namelen = cpu_to_le16(namelen);
5039 /* append lustre attributes */
5040 osd_it_append_attrs(ent, namelen, type);
5044 * Return pointer to the record under iterator.
5046 static int osd_it_iam_rec(const struct lu_env *env,
5047 const struct dt_it *di,
5048 struct dt_rec *dtrec, __u32 attr)
5050 struct osd_it_iam *it = (struct osd_it_iam *)di;
5051 struct osd_thread_info *info = osd_oti_get(env);
5054 if (S_ISDIR(it->oi_obj->oo_inode->i_mode)) {
5055 const struct osd_fid_pack *rec;
5056 struct lu_fid *fid = &info->oti_fid;
5057 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
5063 name = (char *)iam_it_key_get(&it->oi_it);
5065 RETURN(PTR_ERR(name));
5067 namelen = iam_it_key_size(&it->oi_it);
5069 rec = (const struct osd_fid_pack *)iam_it_rec_get(&it->oi_it);
5071 RETURN(PTR_ERR(rec));
5073 rc = osd_fid_unpack(fid, rec);
5077 hash = iam_it_store(&it->oi_it);
5079 /* IAM does not store object type in IAM index (dir) */
5080 osd_it_pack_dirent(lde, fid, hash, name, namelen,
5082 } else if (fid_is_quota(lu_object_fid(&it->oi_obj->oo_dt.do_lu))) {
5083 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
5084 (struct iam_rec *)dtrec);
5085 osd_quota_unpack(it->oi_obj, dtrec);
5087 iam_reccpy(&it->oi_it.ii_path.ip_leaf,
5088 (struct iam_rec *)dtrec);
5095 * Returns cookie for current Iterator position.
5097 static __u64 osd_it_iam_store(const struct lu_env *env, const struct dt_it *di)
5099 struct osd_it_iam *it = (struct osd_it_iam *)di;
5101 return iam_it_store(&it->oi_it);
5105 * Restore iterator from cookie.
5107 * \param di osd iterator
5108 * \param hash Iterator location cookie
5110 * \retval +ve di points to record with least key not larger than key.
5111 * \retval 0 di points to exact matched key
5112 * \retval -ve failure
5115 static int osd_it_iam_load(const struct lu_env *env,
5116 const struct dt_it *di, __u64 hash)
5118 struct osd_it_iam *it = (struct osd_it_iam *)di;
5120 return iam_it_load(&it->oi_it, hash);
5123 static const struct dt_index_operations osd_index_iam_ops = {
5124 .dio_lookup = osd_index_iam_lookup,
5125 .dio_declare_insert = osd_index_declare_iam_insert,
5126 .dio_insert = osd_index_iam_insert,
5127 .dio_declare_delete = osd_index_declare_iam_delete,
5128 .dio_delete = osd_index_iam_delete,
5130 .init = osd_it_iam_init,
5131 .fini = osd_it_iam_fini,
5132 .get = osd_it_iam_get,
5133 .put = osd_it_iam_put,
5134 .next = osd_it_iam_next,
5135 .key = osd_it_iam_key,
5136 .key_size = osd_it_iam_key_size,
5137 .rec = osd_it_iam_rec,
5138 .store = osd_it_iam_store,
5139 .load = osd_it_iam_load
5145 * Creates or initializes iterator context.
5147 * \retval struct osd_it_ea, iterator structure on success
5150 static struct dt_it *osd_it_ea_init(const struct lu_env *env,
5151 struct dt_object *dt,
5154 struct osd_object *obj = osd_dt_obj(dt);
5155 struct osd_thread_info *info = osd_oti_get(env);
5156 struct osd_it_ea *oie;
5158 struct lu_object *lo = &dt->do_lu;
5159 struct dentry *obj_dentry;
5162 if (!dt_object_exists(dt) || obj->oo_destroyed)
5163 RETURN(ERR_PTR(-ENOENT));
5165 OBD_SLAB_ALLOC_PTR_GFP(oie, osd_itea_cachep, GFP_NOFS);
5167 RETURN(ERR_PTR(-ENOMEM));
5168 obj_dentry = &oie->oie_dentry;
5170 obj_dentry->d_inode = obj->oo_inode;
5171 obj_dentry->d_sb = osd_sb(osd_obj2dev(obj));
5172 obj_dentry->d_name.hash = 0;
5174 oie->oie_rd_dirent = 0;
5175 oie->oie_it_dirent = 0;
5176 oie->oie_dirent = NULL;
5177 if (unlikely(!info->oti_it_ea_buf_used)) {
5178 oie->oie_buf = info->oti_it_ea_buf;
5179 info->oti_it_ea_buf_used = 1;
5181 OBD_ALLOC(oie->oie_buf, OSD_IT_EA_BUFSIZE);
5182 if (oie->oie_buf == NULL)
5183 RETURN(ERR_PTR(-ENOMEM));
5187 file = &oie->oie_file;
5189 /* Only FMODE_64BITHASH or FMODE_32BITHASH should be set, NOT both. */
5190 if (attr & LUDA_64BITHASH)
5191 file->f_mode = FMODE_64BITHASH;
5193 file->f_mode = FMODE_32BITHASH;
5194 file->f_path.dentry = obj_dentry;
5195 file->f_mapping = obj->oo_inode->i_mapping;
5196 file->f_op = obj->oo_inode->i_fop;
5197 set_file_inode(file, obj->oo_inode);
5200 RETURN((struct dt_it *) oie);
5204 * Destroy or finishes iterator context.
5206 * \param di iterator structure to be destroyed
5208 static void osd_it_ea_fini(const struct lu_env *env, struct dt_it *di)
5210 struct osd_thread_info *info = osd_oti_get(env);
5211 struct osd_it_ea *oie = (struct osd_it_ea *)di;
5212 struct osd_object *obj = oie->oie_obj;
5213 struct inode *inode = obj->oo_inode;
5216 oie->oie_file.f_op->release(inode, &oie->oie_file);
5217 lu_object_put(env, &obj->oo_dt.do_lu);
5218 if (unlikely(oie->oie_buf != info->oti_it_ea_buf))
5219 OBD_FREE(oie->oie_buf, OSD_IT_EA_BUFSIZE);
5221 info->oti_it_ea_buf_used = 0;
5222 OBD_SLAB_FREE_PTR(oie, osd_itea_cachep);
5227 * It position the iterator at given key, so that next lookup continues from
5228 * that key Or it is similar to dio_it->load() but based on a key,
5229 * rather than file position.
5231 * As a special convention, osd_it_ea_get(env, di, "") has to rewind iterator
5234 * TODO: Presently return +1 considering it is only used by mdd_dir_is_empty().
5236 static int osd_it_ea_get(const struct lu_env *env,
5237 struct dt_it *di, const struct dt_key *key)
5239 struct osd_it_ea *it = (struct osd_it_ea *)di;
5242 LASSERT(((const char *)key)[0] == '\0');
5243 it->oie_file.f_pos = 0;
5244 it->oie_rd_dirent = 0;
5245 it->oie_it_dirent = 0;
5246 it->oie_dirent = NULL;
5254 static void osd_it_ea_put(const struct lu_env *env, struct dt_it *di)
5258 struct osd_filldir_cbs {
5259 #ifdef HAVE_DIR_CONTEXT
5260 struct dir_context ctx;
5262 struct osd_it_ea *it;
5265 * It is called internally by ->readdir(). It fills the
5266 * iterator's in-memory data structure with required
5267 * information i.e. name, namelen, rec_size etc.
5269 * \param buf in which information to be filled in.
5270 * \param name name of the file in given dir
5272 * \retval 0 on success
5273 * \retval 1 on buffer full
5275 #ifdef HAVE_FILLDIR_USE_CTX
5276 static int osd_ldiskfs_filldir(struct dir_context *buf,
5277 const char *name, int namelen,
5279 static int osd_ldiskfs_filldir(void *buf, const char *name, int namelen,
5281 loff_t offset, __u64 ino,
5284 struct osd_it_ea *it =
5285 ((struct osd_filldir_cbs *)buf)->it;
5286 struct osd_object *obj = it->oie_obj;
5287 struct osd_it_ea_dirent *ent = it->oie_dirent;
5288 struct lu_fid *fid = &ent->oied_fid;
5289 struct osd_fid_pack *rec;
5292 /* this should never happen */
5293 if (unlikely(namelen == 0 || namelen > LDISKFS_NAME_LEN)) {
5294 CERROR("ldiskfs return invalid namelen %d\n", namelen);
5298 if ((void *) ent - it->oie_buf + sizeof(*ent) + namelen >
5302 /* "." is just the object itself. */
5303 if (namelen == 1 && name[0] == '.') {
5304 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
5305 } else if (d_type & LDISKFS_DIRENT_LUFID) {
5306 rec = (struct osd_fid_pack*) (name + namelen + 1);
5307 if (osd_fid_unpack(fid, rec) != 0)
5312 d_type &= ~LDISKFS_DIRENT_LUFID;
5314 /* NOT export local root. */
5315 if (unlikely(osd_sb(osd_obj2dev(obj))->s_root->d_inode->i_ino == ino)) {
5316 ino = obj->oo_inode->i_ino;
5317 *fid = obj->oo_dt.do_lu.lo_header->loh_fid;
5320 ent->oied_ino = ino;
5321 ent->oied_off = offset;
5322 ent->oied_namelen = namelen;
5323 ent->oied_type = d_type;
5325 memcpy(ent->oied_name, name, namelen);
5327 it->oie_rd_dirent++;
5328 it->oie_dirent = (void *) ent + cfs_size_round(sizeof(*ent) + namelen);
5333 * Calls ->readdir() to load a directory entry at a time
5334 * and stored it in iterator's in-memory data structure.
5336 * \param di iterator's in memory structure
5338 * \retval 0 on success
5339 * \retval -ve on error
5340 * \retval +1 reach the end of entry
5342 static int osd_ldiskfs_it_fill(const struct lu_env *env,
5343 const struct dt_it *di)
5345 struct osd_it_ea *it = (struct osd_it_ea *)di;
5346 struct osd_object *obj = it->oie_obj;
5347 struct inode *inode = obj->oo_inode;
5348 struct htree_lock *hlock = NULL;
5349 struct file *filp = &it->oie_file;
5351 struct osd_filldir_cbs buf = {
5352 #ifdef HAVE_DIR_CONTEXT
5353 .ctx.actor = osd_ldiskfs_filldir,
5359 it->oie_dirent = it->oie_buf;
5360 it->oie_rd_dirent = 0;
5362 if (obj->oo_hl_head != NULL) {
5363 hlock = osd_oti_get(env)->oti_hlock;
5364 ldiskfs_htree_lock(hlock, obj->oo_hl_head,
5365 inode, LDISKFS_HLOCK_READDIR);
5367 down_read(&obj->oo_ext_idx_sem);
5370 #ifdef HAVE_DIR_CONTEXT
5371 buf.ctx.pos = filp->f_pos;
5372 rc = inode->i_fop->iterate(filp, &buf.ctx);
5373 filp->f_pos = buf.ctx.pos;
5375 rc = inode->i_fop->readdir(filp, &buf, osd_ldiskfs_filldir);
5379 ldiskfs_htree_unlock(hlock);
5381 up_read(&obj->oo_ext_idx_sem);
5383 if (it->oie_rd_dirent == 0) {
5384 /*If it does not get any dirent, it means it has been reached
5385 *to the end of the dir */
5386 it->oie_file.f_pos = ldiskfs_get_htree_eof(&it->oie_file);
5390 it->oie_dirent = it->oie_buf;
5391 it->oie_it_dirent = 1;
5398 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
5399 * to load a directory entry at a time and stored it in
5400 * iterator's in-memory data structure.
5402 * \param di iterator's in memory structure
5404 * \retval +ve iterator reached to end
5405 * \retval 0 iterator not reached to end
5406 * \retval -ve on error
5408 static int osd_it_ea_next(const struct lu_env *env, struct dt_it *di)
5410 struct osd_it_ea *it = (struct osd_it_ea *)di;
5415 if (it->oie_it_dirent < it->oie_rd_dirent) {
5417 (void *) it->oie_dirent +
5418 cfs_size_round(sizeof(struct osd_it_ea_dirent) +
5419 it->oie_dirent->oied_namelen);
5420 it->oie_it_dirent++;
5423 if (it->oie_file.f_pos == ldiskfs_get_htree_eof(&it->oie_file))
5426 rc = osd_ldiskfs_it_fill(env, di);
5433 * Returns the key at current position from iterator's in memory structure.
5435 * \param di iterator's in memory structure
5437 * \retval key i.e. struct dt_key on success
5439 static struct dt_key *osd_it_ea_key(const struct lu_env *env,
5440 const struct dt_it *di)
5442 struct osd_it_ea *it = (struct osd_it_ea *)di;
5444 return (struct dt_key *)it->oie_dirent->oied_name;
5448 * Returns the key's size at current position from iterator's in memory structure.
5450 * \param di iterator's in memory structure
5452 * \retval key_size i.e. struct dt_key on success
5454 static int osd_it_ea_key_size(const struct lu_env *env, const struct dt_it *di)
5456 struct osd_it_ea *it = (struct osd_it_ea *)di;
5458 return it->oie_dirent->oied_namelen;
5462 osd_dot_dotdot_has_space(struct ldiskfs_dir_entry_2 *de, int dot_dotdot)
5464 LASSERTF(dot_dotdot == 1 || dot_dotdot == 2,
5465 "dot_dotdot = %d\n", dot_dotdot);
5467 if (LDISKFS_DIR_REC_LEN(de) >=
5468 __LDISKFS_DIR_REC_LEN(dot_dotdot + 1 + sizeof(struct osd_fid_pack)))
5475 osd_dirent_has_space(struct ldiskfs_dir_entry_2 *de, __u16 namelen,
5476 unsigned blocksize, int dot_dotdot)
5479 return osd_dot_dotdot_has_space(de, dot_dotdot);
5481 if (ldiskfs_rec_len_from_disk(de->rec_len, blocksize) >=
5482 __LDISKFS_DIR_REC_LEN(namelen + 1 + sizeof(struct osd_fid_pack)))
5489 osd_dirent_reinsert(const struct lu_env *env, handle_t *jh,
5490 struct dentry *dentry, const struct lu_fid *fid,
5491 struct buffer_head *bh, struct ldiskfs_dir_entry_2 *de,
5492 struct htree_lock *hlock, int dot_dotdot)
5494 struct inode *dir = dentry->d_parent->d_inode;
5495 struct inode *inode = dentry->d_inode;
5496 struct osd_fid_pack *rec;
5497 struct ldiskfs_dentry_param *ldp;
5498 int namelen = dentry->d_name.len;
5500 struct osd_thread_info *info = osd_oti_get(env);
5503 if (!LDISKFS_HAS_INCOMPAT_FEATURE(inode->i_sb,
5504 LDISKFS_FEATURE_INCOMPAT_DIRDATA))
5507 /* There is enough space to hold the FID-in-dirent. */
5508 if (osd_dirent_has_space(de, namelen, dir->i_sb->s_blocksize,
5510 rc = ldiskfs_journal_get_write_access(jh, bh);
5514 de->name[namelen] = 0;
5515 rec = (struct osd_fid_pack *)(de->name + namelen + 1);
5516 rec->fp_len = sizeof(struct lu_fid) + 1;
5517 fid_cpu_to_be((struct lu_fid *)rec->fp_area, fid);
5518 de->file_type |= LDISKFS_DIRENT_LUFID;
5519 rc = ldiskfs_handle_dirty_metadata(jh, NULL, bh);
5524 LASSERTF(dot_dotdot == 0, "dot_dotdot = %d\n", dot_dotdot);
5526 rc = ldiskfs_delete_entry(jh, dir, de, bh);
5530 ldp = (struct ldiskfs_dentry_param *)osd_oti_get(env)->oti_ldp;
5531 osd_get_ldiskfs_dirent_param(ldp, fid);
5532 dentry->d_fsdata = (void *)ldp;
5533 ll_vfs_dq_init(dir);
5534 rc = osd_ldiskfs_add_entry(info, jh, dentry, inode, hlock);
5535 /* It is too bad, we cannot reinsert the name entry back.
5536 * That means we lose it! */
5538 CDEBUG(D_LFSCK, "%.16s: fail to reinsert the dirent, "
5539 "dir = %lu/%u, name = %.*s, "DFID": rc = %d\n",
5540 LDISKFS_SB(inode->i_sb)->s_es->s_volume_name,
5541 dir->i_ino, dir->i_generation, namelen,
5542 dentry->d_name.name, PFID(fid), rc);
5548 osd_dirent_check_repair(const struct lu_env *env, struct osd_object *obj,
5549 struct osd_it_ea *it, struct lu_fid *fid,
5550 struct osd_inode_id *id, __u32 *attr)
5552 struct osd_thread_info *info = osd_oti_get(env);
5553 struct lustre_mdt_attrs *lma = &info->oti_mdt_attrs;
5554 struct osd_device *dev = osd_obj2dev(obj);
5555 struct super_block *sb = osd_sb(dev);
5556 const char *devname =
5557 LDISKFS_SB(sb)->s_es->s_volume_name;
5558 struct osd_it_ea_dirent *ent = it->oie_dirent;
5559 struct inode *dir = obj->oo_inode;
5560 struct htree_lock *hlock = NULL;
5561 struct buffer_head *bh = NULL;
5562 handle_t *jh = NULL;
5563 struct ldiskfs_dir_entry_2 *de;
5564 struct dentry *dentry;
5565 struct inode *inode;
5572 osd_id_gen(id, ent->oied_ino, OSD_OII_NOGEN);
5573 inode = osd_iget(info, dev, id);
5574 if (IS_ERR(inode)) {
5575 rc = PTR_ERR(inode);
5576 if (rc == -ENOENT || rc == -ESTALE) {
5577 *attr |= LUDA_UNKNOWN;
5580 CDEBUG(D_LFSCK, "%.16s: fail to iget for dirent "
5581 "check_repair, dir = %lu/%u, name = %.*s: "
5583 devname, dir->i_ino, dir->i_generation,
5584 ent->oied_namelen, ent->oied_name, rc);
5590 dentry = osd_child_dentry_by_inode(env, dir, ent->oied_name,
5592 rc = osd_get_lma(info, inode, dentry, lma);
5598 if (ent->oied_name[0] == '.') {
5599 if (ent->oied_namelen == 1)
5601 else if (ent->oied_namelen == 2 && ent->oied_name[1] == '.')
5605 /* We need to ensure that the name entry is still valid.
5606 * Because it may be removed or renamed by other already.
5608 * The unlink or rename operation will start journal before PDO lock,
5609 * so to avoid deadlock, here we need to start journal handle before
5610 * related PDO lock also. But because we do not know whether there
5611 * will be something to be repaired before PDO lock, we just start
5612 * journal without conditions.
5614 * We may need to remove the name entry firstly, then insert back.
5615 * One credit is for user quota file update.
5616 * One credit is for group quota file update.
5617 * Two credits are for dirty inode. */
5618 credits = osd_dto_credits_noquota[DTO_INDEX_DELETE] +
5619 osd_dto_credits_noquota[DTO_INDEX_INSERT] + 1 + 1 + 2;
5621 if (dev->od_dirent_journal != 0) {
5624 jh = osd_journal_start_sb(sb, LDISKFS_HT_MISC, credits);
5627 CDEBUG(D_LFSCK, "%.16s: fail to start trans for dirent "
5628 "check_repair, dir = %lu/%u, credits = %d, "
5629 "name = %.*s: rc = %d\n",
5630 devname, dir->i_ino, dir->i_generation, credits,
5631 ent->oied_namelen, ent->oied_name, rc);
5633 GOTO(out_inode, rc);
5636 if (obj->oo_hl_head != NULL) {
5637 hlock = osd_oti_get(env)->oti_hlock;
5638 /* "0" means exclusive lock for the whole directory.
5639 * We need to prevent others access such name entry
5640 * during the delete + insert. Neither HLOCK_ADD nor
5641 * HLOCK_DEL cannot guarantee the atomicity. */
5642 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir, 0);
5644 down_write(&obj->oo_ext_idx_sem);
5647 if (obj->oo_hl_head != NULL) {
5648 hlock = osd_oti_get(env)->oti_hlock;
5649 ldiskfs_htree_lock(hlock, obj->oo_hl_head, dir,
5650 LDISKFS_HLOCK_LOOKUP);
5652 down_read(&obj->oo_ext_idx_sem);
5656 bh = osd_ldiskfs_find_entry(dir, &dentry->d_name, &de, NULL, hlock);
5657 /* For dot/dotdot entry, if there is not enough space to hold the
5658 * FID-in-dirent, just keep them there. It only happens when the
5659 * device upgraded from 1.8 or restored from MDT file-level backup.
5660 * For the whole directory, only dot/dotdot entry have no FID-in-dirent
5661 * and needs to get FID from LMA when readdir, it will not affect the
5662 * performance much. */
5663 if ((bh == NULL) || (le32_to_cpu(de->inode) != inode->i_ino) ||
5664 (dot_dotdot != 0 && !osd_dot_dotdot_has_space(de, dot_dotdot))) {
5665 *attr |= LUDA_IGNORE;
5671 if (unlikely(lma->lma_compat & LMAC_NOT_IN_OI)) {
5672 struct lu_fid *tfid = &lma->lma_self_fid;
5674 *attr |= LUDA_IGNORE;
5675 /* It must be REMOTE_PARENT_DIR and as the
5676 * dotdot entry of remote directory */
5677 if (unlikely(dot_dotdot != 2 ||
5678 fid_seq(tfid) != FID_SEQ_LOCAL_FILE ||
5679 fid_oid(tfid) != REMOTE_PARENT_DIR_OID)) {
5680 CDEBUG(D_LFSCK, "%.16s: expect remote agent "
5681 "parent directory, but got %.*s under "
5682 "dir = %lu/%u with the FID "DFID"\n",
5683 devname, ent->oied_namelen,
5684 ent->oied_name, dir->i_ino,
5685 dir->i_generation, PFID(tfid));
5687 GOTO(out, rc = -EIO);
5693 if (fid_is_sane(fid)) {
5694 /* FID-in-dirent is valid. */
5695 if (lu_fid_eq(fid, &lma->lma_self_fid))
5698 /* Do not repair under dryrun mode. */
5699 if (*attr & LUDA_VERIFY_DRYRUN) {
5700 *attr |= LUDA_REPAIR;
5707 dev->od_dirent_journal = 1;
5708 if (hlock != NULL) {
5709 ldiskfs_htree_unlock(hlock);
5712 up_read(&obj->oo_ext_idx_sem);
5718 *fid = lma->lma_self_fid;
5720 /* Update the FID-in-dirent. */
5721 rc = osd_dirent_reinsert(env, jh, dentry, fid, bh, de,
5724 *attr |= LUDA_REPAIR;
5726 CDEBUG(D_LFSCK, "%.16s: fail to update FID "
5727 "in the dirent, dir = %lu/%u, "
5728 "name = %.*s, "DFID": rc = %d\n",
5729 devname, dir->i_ino, dir->i_generation,
5730 ent->oied_namelen, ent->oied_name,
5733 /* Do not repair under dryrun mode. */
5734 if (*attr & LUDA_VERIFY_DRYRUN) {
5735 *fid = lma->lma_self_fid;
5736 *attr |= LUDA_REPAIR;
5743 dev->od_dirent_journal = 1;
5744 if (hlock != NULL) {
5745 ldiskfs_htree_unlock(hlock);
5748 up_read(&obj->oo_ext_idx_sem);
5754 *fid = lma->lma_self_fid;
5756 /* Append the FID-in-dirent. */
5757 rc = osd_dirent_reinsert(env, jh, dentry, fid, bh, de,
5760 *attr |= LUDA_REPAIR;
5762 CDEBUG(D_LFSCK, "%.16s: fail to append FID "
5763 "after the dirent, dir = %lu/%u, "
5764 "name = %.*s, "DFID": rc = %d\n",
5765 devname, dir->i_ino, dir->i_generation,
5766 ent->oied_namelen, ent->oied_name,
5770 /* Do not repair under dryrun mode. */
5771 if (*attr & LUDA_VERIFY_DRYRUN) {
5772 if (fid_is_sane(fid)) {
5773 *attr |= LUDA_REPAIR;
5775 lu_igif_build(fid, inode->i_ino,
5776 inode->i_generation);
5777 *attr |= LUDA_UPGRADE;
5785 dev->od_dirent_journal = 1;
5786 if (hlock != NULL) {
5787 ldiskfs_htree_unlock(hlock);
5790 up_read(&obj->oo_ext_idx_sem);
5797 if (unlikely(fid_is_sane(fid))) {
5798 /* FID-in-dirent exists, but FID-in-LMA is lost.
5799 * Trust the FID-in-dirent, and add FID-in-LMA. */
5800 rc = osd_ea_fid_set(info, inode, fid, 0, 0);
5802 *attr |= LUDA_REPAIR;
5804 CDEBUG(D_LFSCK, "%.16s: fail to set LMA for "
5805 "update dirent, dir = %lu/%u, "
5806 "name = %.*s, "DFID": rc = %d\n",
5807 devname, dir->i_ino, dir->i_generation,
5808 ent->oied_namelen, ent->oied_name,
5811 lu_igif_build(fid, inode->i_ino, inode->i_generation);
5812 /* It is probably IGIF object. Only aappend the
5813 * FID-in-dirent. OI scrub will process FID-in-LMA. */
5814 rc = osd_dirent_reinsert(env, jh, dentry, fid, bh, de,
5817 *attr |= LUDA_UPGRADE;
5819 CDEBUG(D_LFSCK, "%.16s: fail to append IGIF "
5820 "after the dirent, dir = %lu/%u, "
5821 "name = %.*s, "DFID": rc = %d\n",
5822 devname, dir->i_ino, dir->i_generation,
5823 ent->oied_namelen, ent->oied_name,
5832 if (hlock != NULL) {
5833 ldiskfs_htree_unlock(hlock);
5835 if (dev->od_dirent_journal != 0)
5836 up_write(&obj->oo_ext_idx_sem);
5838 up_read(&obj->oo_ext_idx_sem);
5842 ldiskfs_journal_stop(jh);
5846 if (rc >= 0 && !dirty)
5847 dev->od_dirent_journal = 0;
5853 * Returns the value at current position from iterator's in memory structure.
5855 * \param di struct osd_it_ea, iterator's in memory structure
5856 * \param attr attr requested for dirent.
5857 * \param lde lustre dirent
5859 * \retval 0 no error and \param lde has correct lustre dirent.
5860 * \retval -ve on error
5862 static inline int osd_it_ea_rec(const struct lu_env *env,
5863 const struct dt_it *di,
5864 struct dt_rec *dtrec, __u32 attr)
5866 struct osd_it_ea *it = (struct osd_it_ea *)di;
5867 struct osd_object *obj = it->oie_obj;
5868 struct osd_device *dev = osd_obj2dev(obj);
5869 struct osd_thread_info *oti = osd_oti_get(env);
5870 struct osd_inode_id *id = &oti->oti_id;
5871 struct lu_fid *fid = &it->oie_dirent->oied_fid;
5872 struct lu_dirent *lde = (struct lu_dirent *)dtrec;
5873 __u32 ino = it->oie_dirent->oied_ino;
5877 LASSERT(obj->oo_inode != dev->od_mdt_map->omm_remote_parent->d_inode);
5879 if (attr & LUDA_VERIFY) {
5880 if (unlikely(ino == osd_remote_parent_ino(dev))) {
5881 attr |= LUDA_IGNORE;
5882 /* If the parent is on remote MDT, and there
5883 * is no FID-in-dirent, then we have to get
5884 * the parent FID from the linkEA. */
5885 if (!fid_is_sane(fid) &&
5886 it->oie_dirent->oied_namelen == 2 &&
5887 it->oie_dirent->oied_name[0] == '.' &&
5888 it->oie_dirent->oied_name[1] == '.')
5889 osd_get_pfid_from_linkea(env, obj, fid);
5891 rc = osd_dirent_check_repair(env, obj, it, fid, id,
5895 if (!fid_is_sane(fid)) {
5896 attr &= ~LUDA_IGNORE;
5897 attr |= LUDA_UNKNOWN;
5900 attr &= ~LU_DIRENT_ATTRS_MASK;
5901 if (!fid_is_sane(fid)) {
5902 bool is_dotdot = false;
5903 if (it->oie_dirent->oied_namelen == 2 &&
5904 it->oie_dirent->oied_name[0] == '.' &&
5905 it->oie_dirent->oied_name[1] == '.')
5907 /* If the parent is on remote MDT, and there
5908 * is no FID-in-dirent, then we have to get
5909 * the parent FID from the linkEA. */
5910 if (ino == osd_remote_parent_ino(dev) && is_dotdot) {
5911 rc = osd_get_pfid_from_linkea(env, obj, fid);
5913 if (is_dotdot == false &&
5914 OBD_FAIL_CHECK(OBD_FAIL_FID_LOOKUP))
5917 rc = osd_ea_fid_get(env, obj, ino, fid, id);
5920 osd_id_gen(id, ino, OSD_OII_NOGEN);
5924 /* Pack the entry anyway, at least the offset is right. */
5925 osd_it_pack_dirent(lde, fid, it->oie_dirent->oied_off,
5926 it->oie_dirent->oied_name,
5927 it->oie_dirent->oied_namelen,
5928 it->oie_dirent->oied_type, attr);
5933 if (osd_remote_fid(env, dev, fid))
5936 if (likely(!(attr & (LUDA_IGNORE | LUDA_UNKNOWN)) && rc == 0))
5937 osd_add_oi_cache(oti, dev, id, fid);
5939 RETURN(rc > 0 ? 0 : rc);
5943 * Returns the record size size at current position.
5945 * This function will return record(lu_dirent) size in bytes.
5947 * \param[in] env execution environment
5948 * \param[in] di iterator's in memory structure
5949 * \param[in] attr attribute of the entry, only requires LUDA_TYPE to
5950 * calculate the lu_dirent size.
5952 * \retval record size(in bytes & in memory) of the current lu_dirent
5955 static int osd_it_ea_rec_size(const struct lu_env *env, const struct dt_it *di,
5958 struct osd_it_ea *it = (struct osd_it_ea *)di;
5960 return lu_dirent_calc_size(it->oie_dirent->oied_namelen, attr);
5964 * Returns a cookie for current position of the iterator head, so that
5965 * user can use this cookie to load/start the iterator next time.
5967 * \param di iterator's in memory structure
5969 * \retval cookie for current position, on success
5971 static __u64 osd_it_ea_store(const struct lu_env *env, const struct dt_it *di)
5973 struct osd_it_ea *it = (struct osd_it_ea *)di;
5975 return it->oie_dirent->oied_off;
5979 * It calls osd_ldiskfs_it_fill() which will use ->readdir()
5980 * to load a directory entry at a time and stored it i inn,
5981 * in iterator's in-memory data structure.
5983 * \param di struct osd_it_ea, iterator's in memory structure
5985 * \retval +ve on success
5986 * \retval -ve on error
5988 static int osd_it_ea_load(const struct lu_env *env,
5989 const struct dt_it *di, __u64 hash)
5991 struct osd_it_ea *it = (struct osd_it_ea *)di;
5995 it->oie_file.f_pos = hash;
5997 rc = osd_ldiskfs_it_fill(env, di);
6008 * Index lookup function for interoperability mode (b11826).
6010 * \param key, key i.e. file name to be searched
6012 * \retval +ve, on success
6013 * \retval -ve, on error
6015 static int osd_index_ea_lookup(const struct lu_env *env, struct dt_object *dt,
6016 struct dt_rec *rec, const struct dt_key *key)
6018 struct osd_object *obj = osd_dt_obj(dt);
6023 LASSERT(S_ISDIR(obj->oo_inode->i_mode));
6024 LINVRNT(osd_invariant(obj));
6026 rc = osd_ea_lookup_rec(env, obj, rec, key);
6033 * Index and Iterator operations for interoperability
6034 * mode (i.e. to run 2.0 mds on 1.8 disk) (b11826)
6036 static const struct dt_index_operations osd_index_ea_ops = {
6037 .dio_lookup = osd_index_ea_lookup,
6038 .dio_declare_insert = osd_index_declare_ea_insert,
6039 .dio_insert = osd_index_ea_insert,
6040 .dio_declare_delete = osd_index_declare_ea_delete,
6041 .dio_delete = osd_index_ea_delete,
6043 .init = osd_it_ea_init,
6044 .fini = osd_it_ea_fini,
6045 .get = osd_it_ea_get,
6046 .put = osd_it_ea_put,
6047 .next = osd_it_ea_next,
6048 .key = osd_it_ea_key,
6049 .key_size = osd_it_ea_key_size,
6050 .rec = osd_it_ea_rec,
6051 .rec_size = osd_it_ea_rec_size,
6052 .store = osd_it_ea_store,
6053 .load = osd_it_ea_load
6057 static void *osd_key_init(const struct lu_context *ctx,
6058 struct lu_context_key *key)
6060 struct osd_thread_info *info;
6062 OBD_ALLOC_PTR(info);
6064 return ERR_PTR(-ENOMEM);
6066 OBD_ALLOC(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
6067 if (info->oti_it_ea_buf == NULL)
6070 info->oti_env = container_of(ctx, struct lu_env, le_ctx);
6072 info->oti_hlock = ldiskfs_htree_lock_alloc();
6073 if (info->oti_hlock == NULL)
6079 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
6082 return ERR_PTR(-ENOMEM);
6085 static void osd_key_fini(const struct lu_context *ctx,
6086 struct lu_context_key *key, void* data)
6088 struct osd_thread_info *info = data;
6089 struct ldiskfs_inode_info *lli = LDISKFS_I(info->oti_inode);
6090 struct osd_idmap_cache *idc = info->oti_ins_cache;
6092 if (info->oti_inode != NULL)
6094 if (info->oti_hlock != NULL)
6095 ldiskfs_htree_lock_free(info->oti_hlock);
6096 OBD_FREE(info->oti_it_ea_buf, OSD_IT_EA_BUFSIZE);
6097 lu_buf_free(&info->oti_iobuf.dr_pg_buf);
6098 lu_buf_free(&info->oti_iobuf.dr_bl_buf);
6099 lu_buf_free(&info->oti_big_buf);
6101 LASSERT(info->oti_ins_cache_size > 0);
6102 OBD_FREE(idc, sizeof(*idc) * info->oti_ins_cache_size);
6103 info->oti_ins_cache = NULL;
6104 info->oti_ins_cache_size = 0;
6109 static void osd_key_exit(const struct lu_context *ctx,
6110 struct lu_context_key *key, void *data)
6112 struct osd_thread_info *info = data;
6114 LASSERT(info->oti_r_locks == 0);
6115 LASSERT(info->oti_w_locks == 0);
6116 LASSERT(info->oti_txns == 0);
6119 /* type constructor/destructor: osd_type_init, osd_type_fini */
6120 LU_TYPE_INIT_FINI(osd, &osd_key);
6122 struct lu_context_key osd_key = {
6123 .lct_tags = LCT_DT_THREAD | LCT_MD_THREAD | LCT_MG_THREAD | LCT_LOCAL,
6124 .lct_init = osd_key_init,
6125 .lct_fini = osd_key_fini,
6126 .lct_exit = osd_key_exit
6130 static int osd_device_init(const struct lu_env *env, struct lu_device *d,
6131 const char *name, struct lu_device *next)
6133 struct osd_device *osd = osd_dev(d);
6135 if (strlcpy(osd->od_svname, name, sizeof(osd->od_svname))
6136 >= sizeof(osd->od_svname))
6138 return osd_procfs_init(osd, name);
6141 static int osd_fid_init(const struct lu_env *env, struct osd_device *osd)
6143 struct seq_server_site *ss = osd_seq_site(osd);
6147 if (osd->od_is_ost || osd->od_cl_seq != NULL)
6150 if (unlikely(ss == NULL))
6153 OBD_ALLOC_PTR(osd->od_cl_seq);
6154 if (osd->od_cl_seq == NULL)
6157 rc = seq_client_init(osd->od_cl_seq, NULL, LUSTRE_SEQ_METADATA,
6158 osd->od_svname, ss->ss_server_seq);
6160 OBD_FREE_PTR(osd->od_cl_seq);
6161 osd->od_cl_seq = NULL;
6165 if (ss->ss_node_id == 0) {
6166 /* If the OSD on the sequence controller(MDT0), then allocate
6167 * sequence here, otherwise allocate sequence after connected
6168 * to MDT0 (see mdt_register_lwp_callback()). */
6169 rc = seq_server_alloc_meta(osd->od_cl_seq->lcs_srv,
6170 &osd->od_cl_seq->lcs_space, env);
6176 static void osd_fid_fini(const struct lu_env *env, struct osd_device *osd)
6178 if (osd->od_cl_seq == NULL)
6181 seq_client_fini(osd->od_cl_seq);
6182 OBD_FREE_PTR(osd->od_cl_seq);
6183 osd->od_cl_seq = NULL;
6186 static int osd_shutdown(const struct lu_env *env, struct osd_device *o)
6190 /* shutdown quota slave instance associated with the device */
6191 if (o->od_quota_slave != NULL) {
6192 qsd_fini(env, o->od_quota_slave);
6193 o->od_quota_slave = NULL;
6196 osd_fid_fini(env, o);
6201 static void osd_umount(const struct lu_env *env, struct osd_device *o)
6205 if (o->od_mnt != NULL) {
6206 shrink_dcache_sb(osd_sb(o));
6207 osd_sync(env, &o->od_dt_dev);
6216 static int osd_mount(const struct lu_env *env,
6217 struct osd_device *o, struct lustre_cfg *cfg)
6219 const char *name = lustre_cfg_string(cfg, 0);
6220 const char *dev = lustre_cfg_string(cfg, 1);
6222 unsigned long page, s_flags, lmd_flags = 0;
6223 struct page *__page;
6224 struct file_system_type *type;
6225 char *options = NULL;
6227 struct osd_thread_info *info = osd_oti_get(env);
6228 struct lu_fid *fid = &info->oti_fid;
6229 struct inode *inode;
6230 int rc = 0, force_over_256tb = 0;
6233 if (o->od_mnt != NULL)
6236 if (strlen(dev) >= sizeof(o->od_mntdev))
6238 strcpy(o->od_mntdev, dev);
6240 str = lustre_cfg_string(cfg, 2);
6241 s_flags = simple_strtoul(str, NULL, 0);
6242 str = strstr(str, ":");
6244 lmd_flags = simple_strtoul(str + 1, NULL, 0);
6245 opts = lustre_cfg_string(cfg, 3);
6247 if (opts == NULL || strstr(opts, "bigendian_extents") == NULL) {
6248 CERROR("%s: device %s extents feature is not guaranteed to "
6249 "work on big-endian systems. Use \"bigendian_extents\" "
6250 "mount option to override.\n", name, dev);
6254 if (opts != NULL && strstr(opts, "force_over_128tb") != NULL) {
6255 CWARN("force_over_128tb option is depricated."
6256 "Filesystems less then 256TB can be created without any"
6257 "force options. Use force_over_256tb option for"
6258 "filesystems greather then 256TB.\n");
6261 if (opts != NULL && strstr(opts, "force_over_256tb") != NULL)
6262 force_over_256tb = 1;
6264 __page = alloc_page(GFP_IOFS);
6266 GOTO(out, rc = -ENOMEM);
6267 page = (unsigned long)page_address(__page);
6268 options = (char *)page;
6271 /* strip out the options for back compatiblity */
6272 static char *sout[] = {
6279 /* strip out option we processed in osd */
6280 "bigendian_extents",
6281 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(3,0,53,0)
6282 #warning "remove force_over_128 option"
6284 "force_over_128tb (deprecated)",
6289 strcat(options, opts);
6290 for (rc = 0, str = options; sout[rc]; ) {
6291 char *op = strstr(str, sout[rc]);
6297 if (op == options || *(op - 1) == ',') {
6298 str = op + strlen(sout[rc]);
6299 if (*str == ',' || *str == '\0') {
6300 *str == ',' ? str++ : str;
6301 memmove(op, str, strlen(str) + 1);
6304 for (str = op; *str != ',' && *str != '\0'; str++)
6308 strncat(options, "user_xattr,acl", 14);
6311 /* Glom up mount options */
6312 if (*options != '\0')
6313 strcat(options, ",");
6314 strlcat(options, "no_mbcache", PAGE_CACHE_SIZE);
6316 type = get_fs_type("ldiskfs");
6318 CERROR("%s: cannot find ldiskfs module\n", name);
6319 GOTO(out, rc = -ENODEV);
6322 o->od_mnt = vfs_kern_mount(type, s_flags, dev, options);
6323 module_put(type->owner);
6325 if (IS_ERR(o->od_mnt)) {
6326 rc = PTR_ERR(o->od_mnt);
6328 CERROR("%s: can't mount %s: %d\n", name, dev, rc);
6332 if (ldiskfs_blocks_count(LDISKFS_SB(osd_sb(o))->s_es) > (64ULL << 30) &&
6333 force_over_256tb == 0) {
6334 CERROR("%s: device %s LDISKFS does not support filesystems "
6335 "greater than 256TB and can cause data corruption. "
6336 "Use \"force_over_256tb\" mount option to override.\n",
6338 GOTO(out, rc = -EINVAL);
6341 #ifdef HAVE_DEV_SET_RDONLY
6342 if (dev_check_rdonly(o->od_mnt->mnt_sb->s_bdev)) {
6343 CERROR("%s: underlying device %s is marked as read-only. "
6344 "Setup failed\n", name, dev);
6345 GOTO(out_mnt, rc = -EROFS);
6349 if (!LDISKFS_HAS_COMPAT_FEATURE(o->od_mnt->mnt_sb,
6350 LDISKFS_FEATURE_COMPAT_HAS_JOURNAL)) {
6351 CERROR("%s: device %s is mounted w/o journal\n", name, dev);
6352 GOTO(out_mnt, rc = -EINVAL);
6355 #ifdef LDISKFS_MOUNT_DIRDATA
6356 if (LDISKFS_HAS_INCOMPAT_FEATURE(o->od_mnt->mnt_sb,
6357 LDISKFS_FEATURE_INCOMPAT_DIRDATA))
6358 LDISKFS_SB(osd_sb(o))->s_mount_opt |= LDISKFS_MOUNT_DIRDATA;
6359 else if (!o->od_is_ost)
6360 CWARN("%s: device %s was upgraded from Lustre-1.x without "
6361 "enabling the dirdata feature. If you do not want to "
6362 "downgrade to Lustre-1.x again, you can enable it via "
6363 "'tune2fs -O dirdata device'\n", name, dev);
6365 inode = osd_sb(o)->s_root->d_inode;
6366 lu_local_obj_fid(fid, OSD_FS_ROOT_OID);
6367 rc = osd_ea_fid_set(info, inode, fid, LMAC_NOT_IN_OI, 0);
6369 CERROR("%s: failed to set lma on %s root inode\n", name, dev);
6373 if (lmd_flags & LMD_FLG_NOSCRUB)
6384 __free_page(__page);
6389 static struct lu_device *osd_device_fini(const struct lu_env *env,
6390 struct lu_device *d)
6392 struct osd_device *o = osd_dev(d);
6395 osd_shutdown(env, o);
6397 osd_scrub_cleanup(env, o);
6398 osd_obj_map_fini(o);
6404 static int osd_device_init0(const struct lu_env *env,
6405 struct osd_device *o,
6406 struct lustre_cfg *cfg)
6408 struct lu_device *l = osd2lu_dev(o);
6409 struct osd_thread_info *info;
6413 /* if the module was re-loaded, env can loose its keys */
6414 rc = lu_env_refill((struct lu_env *) env);
6417 info = osd_oti_get(env);
6420 l->ld_ops = &osd_lu_ops;
6421 o->od_dt_dev.dd_ops = &osd_dt_ops;
6423 spin_lock_init(&o->od_osfs_lock);
6424 mutex_init(&o->od_otable_mutex);
6425 INIT_LIST_HEAD(&o->od_orphan_list);
6427 o->od_read_cache = 1;
6428 o->od_writethrough_cache = 1;
6429 o->od_readcache_max_filesize = OSD_MAX_CACHE_SIZE;
6431 cplen = strlcpy(o->od_svname, lustre_cfg_string(cfg, 4),
6432 sizeof(o->od_svname));
6433 if (cplen >= sizeof(o->od_svname)) {
6438 o->od_index = -1; /* -1 means index is invalid */
6439 rc = server_name2index(o->od_svname, &o->od_index, NULL);
6440 if (rc == LDD_F_SV_TYPE_OST)
6443 o->od_full_scrub_ratio = OFSR_DEFAULT;
6444 o->od_full_scrub_threshold_rate = FULL_SCRUB_THRESHOLD_RATE_DEFAULT;
6445 rc = osd_mount(env, o, cfg);
6449 rc = osd_obj_map_init(env, o);
6453 rc = lu_site_init(&o->od_site, l);
6455 GOTO(out_compat, rc);
6456 o->od_site.ls_bottom_dev = l;
6458 rc = lu_site_init_finish(&o->od_site);
6462 INIT_LIST_HEAD(&o->od_ios_list);
6463 /* setup scrub, including OI files initialization */
6464 rc = osd_scrub_setup(env, o);
6468 rc = osd_procfs_init(o, o->od_svname);
6470 CERROR("%s: can't initialize procfs: rc = %d\n",
6472 GOTO(out_scrub, rc);
6475 LASSERT(l->ld_site->ls_linkage.next != NULL);
6476 LASSERT(l->ld_site->ls_linkage.prev != NULL);
6478 /* initialize quota slave instance */
6479 o->od_quota_slave = qsd_init(env, o->od_svname, &o->od_dt_dev,
6481 if (IS_ERR(o->od_quota_slave)) {
6482 rc = PTR_ERR(o->od_quota_slave);
6483 o->od_quota_slave = NULL;
6484 GOTO(out_procfs, rc);
6492 osd_scrub_cleanup(env, o);
6494 lu_site_fini(&o->od_site);
6496 osd_obj_map_fini(o);
6503 static struct lu_device *osd_device_alloc(const struct lu_env *env,
6504 struct lu_device_type *t,
6505 struct lustre_cfg *cfg)
6507 struct osd_device *o;
6512 return ERR_PTR(-ENOMEM);
6514 rc = dt_device_init(&o->od_dt_dev, t);
6516 /* Because the ctx might be revived in dt_device_init,
6517 * refill the env here */
6518 lu_env_refill((struct lu_env *)env);
6519 rc = osd_device_init0(env, o, cfg);
6521 dt_device_fini(&o->od_dt_dev);
6524 if (unlikely(rc != 0))
6527 return rc == 0 ? osd2lu_dev(o) : ERR_PTR(rc);
6530 static struct lu_device *osd_device_free(const struct lu_env *env,
6531 struct lu_device *d)
6533 struct osd_device *o = osd_dev(d);
6536 /* XXX: make osd top device in order to release reference */
6537 d->ld_site->ls_top_dev = d;
6538 lu_site_purge(env, d->ld_site, -1);
6539 if (!cfs_hash_is_empty(d->ld_site->ls_obj_hash)) {
6540 LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, D_ERROR, NULL);
6541 lu_site_print(env, d->ld_site, &msgdata, lu_cdebug_printer);
6543 lu_site_fini(&o->od_site);
6544 dt_device_fini(&o->od_dt_dev);
6549 static int osd_process_config(const struct lu_env *env,
6550 struct lu_device *d, struct lustre_cfg *cfg)
6552 struct osd_device *o = osd_dev(d);
6556 switch (cfg->lcfg_command) {
6558 rc = osd_mount(env, o, cfg);
6561 lu_dev_del_linkage(d->ld_site, d);
6562 rc = osd_shutdown(env, o);
6565 LASSERT(&o->od_dt_dev);
6566 rc = class_process_proc_param(PARAM_OSD, lprocfs_osd_obd_vars,
6567 cfg, &o->od_dt_dev);
6568 if (rc > 0 || rc == -ENOSYS)
6569 rc = class_process_proc_param(PARAM_OST,
6570 lprocfs_osd_obd_vars,
6571 cfg, &o->od_dt_dev);
6580 static int osd_recovery_complete(const struct lu_env *env,
6581 struct lu_device *d)
6583 struct osd_device *osd = osd_dev(d);
6587 if (osd->od_quota_slave == NULL)
6590 /* start qsd instance on recovery completion, this notifies the quota
6591 * slave code that we are about to process new requests now */
6592 rc = qsd_start(env, osd->od_quota_slave);
6597 * we use exports to track all osd users
6599 static int osd_obd_connect(const struct lu_env *env, struct obd_export **exp,
6600 struct obd_device *obd, struct obd_uuid *cluuid,
6601 struct obd_connect_data *data, void *localdata)
6603 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
6604 struct lustre_handle conn;
6608 CDEBUG(D_CONFIG, "connect #%d\n", osd->od_connects);
6610 rc = class_connect(&conn, obd, cluuid);
6614 *exp = class_conn2export(&conn);
6616 spin_lock(&osd->od_osfs_lock);
6618 spin_unlock(&osd->od_osfs_lock);
6624 * once last export (we don't count self-export) disappeared
6625 * osd can be released
6627 static int osd_obd_disconnect(struct obd_export *exp)
6629 struct obd_device *obd = exp->exp_obd;
6630 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
6631 int rc, release = 0;
6634 /* Only disconnect the underlying layers on the final disconnect. */
6635 spin_lock(&osd->od_osfs_lock);
6637 if (osd->od_connects == 0)
6639 spin_unlock(&osd->od_osfs_lock);
6641 rc = class_disconnect(exp); /* bz 9811 */
6643 if (rc == 0 && release)
6644 class_manual_cleanup(obd);
6648 static int osd_prepare(const struct lu_env *env, struct lu_device *pdev,
6649 struct lu_device *dev)
6651 struct osd_device *osd = osd_dev(dev);
6652 struct lr_server_data *lsd =
6653 &osd->od_dt_dev.dd_lu_dev.ld_site->ls_tgt->lut_lsd;
6657 if (osd->od_quota_slave != NULL) {
6658 /* set up quota slave objects */
6659 result = qsd_prepare(env, osd->od_quota_slave);
6664 if (lsd->lsd_feature_incompat & OBD_COMPAT_OST) {
6665 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
6666 if (lsd->lsd_feature_rocompat & OBD_ROCOMPAT_IDX_IN_IDIF) {
6667 osd->od_index_in_idif = 1;
6669 osd->od_index_in_idif = 0;
6670 result = osd_register_proc_index_in_idif(osd);
6675 osd->od_index_in_idif = 1;
6679 result = osd_fid_init(env, osd);
6684 static int osd_fid_alloc(const struct lu_env *env, struct obd_export *exp,
6685 struct lu_fid *fid, struct md_op_data *op_data)
6687 struct osd_device *osd = osd_dev(exp->exp_obd->obd_lu_dev);
6689 return seq_client_alloc_fid(env, osd->od_cl_seq, fid);
6692 static const struct lu_object_operations osd_lu_obj_ops = {
6693 .loo_object_init = osd_object_init,
6694 .loo_object_delete = osd_object_delete,
6695 .loo_object_release = osd_object_release,
6696 .loo_object_free = osd_object_free,
6697 .loo_object_print = osd_object_print,
6698 .loo_object_invariant = osd_object_invariant
6701 const struct lu_device_operations osd_lu_ops = {
6702 .ldo_object_alloc = osd_object_alloc,
6703 .ldo_process_config = osd_process_config,
6704 .ldo_recovery_complete = osd_recovery_complete,
6705 .ldo_prepare = osd_prepare,
6708 static const struct lu_device_type_operations osd_device_type_ops = {
6709 .ldto_init = osd_type_init,
6710 .ldto_fini = osd_type_fini,
6712 .ldto_start = osd_type_start,
6713 .ldto_stop = osd_type_stop,
6715 .ldto_device_alloc = osd_device_alloc,
6716 .ldto_device_free = osd_device_free,
6718 .ldto_device_init = osd_device_init,
6719 .ldto_device_fini = osd_device_fini
6722 static struct lu_device_type osd_device_type = {
6723 .ldt_tags = LU_DEVICE_DT,
6724 .ldt_name = LUSTRE_OSD_LDISKFS_NAME,
6725 .ldt_ops = &osd_device_type_ops,
6726 .ldt_ctx_tags = LCT_LOCAL,
6729 static int osd_health_check(const struct lu_env *env, struct obd_device *obd)
6731 struct osd_device *osd = osd_dev(obd->obd_lu_dev);
6732 struct super_block *sb = osd_sb(osd);
6734 return (osd->od_mnt == NULL || sb->s_flags & MS_RDONLY);
6738 * lprocfs legacy support.
6740 static struct obd_ops osd_obd_device_ops = {
6741 .o_owner = THIS_MODULE,
6742 .o_connect = osd_obd_connect,
6743 .o_disconnect = osd_obd_disconnect,
6744 .o_fid_alloc = osd_fid_alloc,
6745 .o_health_check = osd_health_check,
6748 static int __init osd_init(void)
6752 LASSERT(BH_DXLock < sizeof(((struct buffer_head *)0)->b_state) * 8);
6753 #if !defined(CONFIG_DEBUG_MUTEXES) && !defined(CONFIG_DEBUG_SPINLOCK)
6754 /* please, try to keep osd_thread_info smaller than a page */
6755 CLASSERT(sizeof(struct osd_thread_info) <= PAGE_SIZE);
6760 rc = lu_kmem_init(ldiskfs_caches);
6764 rc = class_register_type(&osd_obd_device_ops, NULL, true,
6765 lprocfs_osd_module_vars,
6766 LUSTRE_OSD_LDISKFS_NAME, &osd_device_type);
6768 lu_kmem_fini(ldiskfs_caches);
6772 static void __exit osd_exit(void)
6774 class_unregister_type(LUSTRE_OSD_LDISKFS_NAME);
6775 lu_kmem_fini(ldiskfs_caches);
6778 MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
6779 MODULE_DESCRIPTION("Lustre Object Storage Device ("LUSTRE_OSD_LDISKFS_NAME")");
6780 MODULE_VERSION(LUSTRE_VERSION_STRING);
6781 MODULE_LICENSE("GPL");
6783 module_init(osd_init);
6784 module_exit(osd_exit);