1 /* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
6 * vfs' aops, fops, dops and iops
8 * Copyright (C) 2002, 2004 Oracle. All rights reserved.
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public
12 * License as published by the Free Software Foundation; either
13 * version 2 of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public
21 * License along with this program; if not, write to the
22 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 * Boston, MA 021110-1307, USA.
27 #include <linux/types.h>
28 #include <linux/highmem.h>
29 #include <linux/pagemap.h>
30 #include <linux/quotaops.h>
32 #include <asm/byteorder.h>
34 #define MLOG_MASK_PREFIX ML_INODE
35 #include <cluster/masklog.h>
41 #include "blockcheck.h"
43 #include "extent_map.h"
45 #include "heartbeat.h"
55 #include "refcounttree.h"
57 #include "buffer_head_io.h"
59 struct ocfs2_find_inode_args
63 unsigned int fi_flags
;
64 unsigned int fi_sysfile_type
;
67 static struct lock_class_key ocfs2_sysfile_lock_key
[NUM_SYSTEM_INODES
];
69 static int ocfs2_read_locked_inode(struct inode
*inode
,
70 struct ocfs2_find_inode_args
*args
);
71 static int ocfs2_init_locked_inode(struct inode
*inode
, void *opaque
);
72 static int ocfs2_find_actor(struct inode
*inode
, void *opaque
);
73 static int ocfs2_truncate_for_delete(struct ocfs2_super
*osb
,
75 struct buffer_head
*fe_bh
);
77 void ocfs2_set_inode_flags(struct inode
*inode
)
79 unsigned int flags
= OCFS2_I(inode
)->ip_attr
;
81 inode
->i_flags
&= ~(S_IMMUTABLE
|
82 S_SYNC
| S_APPEND
| S_NOATIME
| S_DIRSYNC
);
84 if (flags
& OCFS2_IMMUTABLE_FL
)
85 inode
->i_flags
|= S_IMMUTABLE
;
87 if (flags
& OCFS2_SYNC_FL
)
88 inode
->i_flags
|= S_SYNC
;
89 if (flags
& OCFS2_APPEND_FL
)
90 inode
->i_flags
|= S_APPEND
;
91 if (flags
& OCFS2_NOATIME_FL
)
92 inode
->i_flags
|= S_NOATIME
;
93 if (flags
& OCFS2_DIRSYNC_FL
)
94 inode
->i_flags
|= S_DIRSYNC
;
97 /* Propagate flags from i_flags to OCFS2_I(inode)->ip_attr */
98 void ocfs2_get_inode_flags(struct ocfs2_inode_info
*oi
)
100 unsigned int flags
= oi
->vfs_inode
.i_flags
;
102 oi
->ip_attr
&= ~(OCFS2_SYNC_FL
|OCFS2_APPEND_FL
|
103 OCFS2_IMMUTABLE_FL
|OCFS2_NOATIME_FL
|OCFS2_DIRSYNC_FL
);
105 oi
->ip_attr
|= OCFS2_SYNC_FL
;
106 if (flags
& S_APPEND
)
107 oi
->ip_attr
|= OCFS2_APPEND_FL
;
108 if (flags
& S_IMMUTABLE
)
109 oi
->ip_attr
|= OCFS2_IMMUTABLE_FL
;
110 if (flags
& S_NOATIME
)
111 oi
->ip_attr
|= OCFS2_NOATIME_FL
;
112 if (flags
& S_DIRSYNC
)
113 oi
->ip_attr
|= OCFS2_DIRSYNC_FL
;
116 struct inode
*ocfs2_ilookup(struct super_block
*sb
, u64 blkno
)
118 struct ocfs2_find_inode_args args
;
120 args
.fi_blkno
= blkno
;
122 args
.fi_ino
= ino_from_blkno(sb
, blkno
);
123 args
.fi_sysfile_type
= 0;
125 return ilookup5(sb
, blkno
, ocfs2_find_actor
, &args
);
127 struct inode
*ocfs2_iget(struct ocfs2_super
*osb
, u64 blkno
, unsigned flags
,
130 struct inode
*inode
= NULL
;
131 struct super_block
*sb
= osb
->sb
;
132 struct ocfs2_find_inode_args args
;
134 mlog_entry("(blkno = %llu)\n", (unsigned long long)blkno
);
136 /* Ok. By now we've either got the offsets passed to us by the
137 * caller, or we just pulled them off the bh. Lets do some
138 * sanity checks to make sure they're OK. */
140 inode
= ERR_PTR(-EINVAL
);
141 mlog_errno(PTR_ERR(inode
));
145 args
.fi_blkno
= blkno
;
146 args
.fi_flags
= flags
;
147 args
.fi_ino
= ino_from_blkno(sb
, blkno
);
148 args
.fi_sysfile_type
= sysfile_type
;
150 inode
= iget5_locked(sb
, args
.fi_ino
, ocfs2_find_actor
,
151 ocfs2_init_locked_inode
, &args
);
152 /* inode was *not* in the inode cache. 2.6.x requires
153 * us to do our own read_inode call and unlock it
155 if (inode
&& inode
->i_state
& I_NEW
) {
156 mlog(0, "Inode was not in inode cache, reading it.\n");
157 ocfs2_read_locked_inode(inode
, &args
);
158 unlock_new_inode(inode
);
161 inode
= ERR_PTR(-ENOMEM
);
162 mlog_errno(PTR_ERR(inode
));
165 if (is_bad_inode(inode
)) {
167 inode
= ERR_PTR(-ESTALE
);
172 if (!IS_ERR(inode
)) {
173 mlog(0, "returning inode with number %llu\n",
174 (unsigned long long)OCFS2_I(inode
)->ip_blkno
);
175 mlog_exit_ptr(inode
);
183 * here's how inodes get read from disk:
184 * iget5_locked -> find_actor -> OCFS2_FIND_ACTOR
185 * found? : return the in-memory inode
186 * not found? : get_new_inode -> OCFS2_INIT_LOCKED_INODE
189 static int ocfs2_find_actor(struct inode
*inode
, void *opaque
)
191 struct ocfs2_find_inode_args
*args
= NULL
;
192 struct ocfs2_inode_info
*oi
= OCFS2_I(inode
);
195 mlog_entry("(0x%p, %lu, 0x%p)\n", inode
, inode
->i_ino
, opaque
);
199 mlog_bug_on_msg(!inode
, "No inode in find actor!\n");
201 if (oi
->ip_blkno
!= args
->fi_blkno
)
211 * initialize the new inode, but don't do anything that would cause
213 * return 0 on success, 1 on failure
215 static int ocfs2_init_locked_inode(struct inode
*inode
, void *opaque
)
217 struct ocfs2_find_inode_args
*args
= opaque
;
218 static struct lock_class_key ocfs2_quota_ip_alloc_sem_key
,
219 ocfs2_file_ip_alloc_sem_key
;
221 mlog_entry("inode = %p, opaque = %p\n", inode
, opaque
);
223 inode
->i_ino
= args
->fi_ino
;
224 OCFS2_I(inode
)->ip_blkno
= args
->fi_blkno
;
225 if (args
->fi_sysfile_type
!= 0)
226 lockdep_set_class(&inode
->i_mutex
,
227 &ocfs2_sysfile_lock_key
[args
->fi_sysfile_type
]);
228 if (args
->fi_sysfile_type
== USER_QUOTA_SYSTEM_INODE
||
229 args
->fi_sysfile_type
== GROUP_QUOTA_SYSTEM_INODE
||
230 args
->fi_sysfile_type
== LOCAL_USER_QUOTA_SYSTEM_INODE
||
231 args
->fi_sysfile_type
== LOCAL_GROUP_QUOTA_SYSTEM_INODE
)
232 lockdep_set_class(&OCFS2_I(inode
)->ip_alloc_sem
,
233 &ocfs2_quota_ip_alloc_sem_key
);
235 lockdep_set_class(&OCFS2_I(inode
)->ip_alloc_sem
,
236 &ocfs2_file_ip_alloc_sem_key
);
242 void ocfs2_populate_inode(struct inode
*inode
, struct ocfs2_dinode
*fe
,
245 struct super_block
*sb
;
246 struct ocfs2_super
*osb
;
249 mlog_entry("(0x%p, size:%llu)\n", inode
,
250 (unsigned long long)le64_to_cpu(fe
->i_size
));
255 if ((osb
->s_mount_opt
& OCFS2_MOUNT_LOCALFLOCKS
) ||
256 ocfs2_mount_local(osb
) || !ocfs2_stack_supports_plocks())
260 * These have all been checked by ocfs2_read_inode_block() or set
261 * by ocfs2_mknod_locked(), so a failure is a code bug.
263 BUG_ON(!OCFS2_IS_VALID_DINODE(fe
)); /* This means that read_inode
264 cannot create a superblock
265 inode today. change if
267 BUG_ON(!(fe
->i_flags
& cpu_to_le32(OCFS2_VALID_FL
)));
268 BUG_ON(le32_to_cpu(fe
->i_fs_generation
) != osb
->fs_generation
);
271 OCFS2_I(inode
)->ip_clusters
= le32_to_cpu(fe
->i_clusters
);
272 OCFS2_I(inode
)->ip_attr
= le32_to_cpu(fe
->i_attr
);
273 OCFS2_I(inode
)->ip_dyn_features
= le16_to_cpu(fe
->i_dyn_features
);
275 inode
->i_version
= 1;
276 inode
->i_generation
= le32_to_cpu(fe
->i_generation
);
277 inode
->i_rdev
= huge_decode_dev(le64_to_cpu(fe
->id1
.dev1
.i_rdev
));
278 inode
->i_mode
= le16_to_cpu(fe
->i_mode
);
279 inode
->i_uid
= le32_to_cpu(fe
->i_uid
);
280 inode
->i_gid
= le32_to_cpu(fe
->i_gid
);
282 /* Fast symlinks will have i_size but no allocated clusters. */
283 if (S_ISLNK(inode
->i_mode
) && !fe
->i_clusters
)
286 inode
->i_blocks
= ocfs2_inode_sector_count(inode
);
287 inode
->i_mapping
->a_ops
= &ocfs2_aops
;
288 inode
->i_atime
.tv_sec
= le64_to_cpu(fe
->i_atime
);
289 inode
->i_atime
.tv_nsec
= le32_to_cpu(fe
->i_atime_nsec
);
290 inode
->i_mtime
.tv_sec
= le64_to_cpu(fe
->i_mtime
);
291 inode
->i_mtime
.tv_nsec
= le32_to_cpu(fe
->i_mtime_nsec
);
292 inode
->i_ctime
.tv_sec
= le64_to_cpu(fe
->i_ctime
);
293 inode
->i_ctime
.tv_nsec
= le32_to_cpu(fe
->i_ctime_nsec
);
295 if (OCFS2_I(inode
)->ip_blkno
!= le64_to_cpu(fe
->i_blkno
))
297 "ip_blkno %llu != i_blkno %llu!\n",
298 (unsigned long long)OCFS2_I(inode
)->ip_blkno
,
299 (unsigned long long)le64_to_cpu(fe
->i_blkno
));
301 inode
->i_nlink
= ocfs2_read_links_count(fe
);
303 if (fe
->i_flags
& cpu_to_le32(OCFS2_SYSTEM_FL
)) {
304 OCFS2_I(inode
)->ip_flags
|= OCFS2_INODE_SYSTEM_FILE
;
305 inode
->i_flags
|= S_NOQUOTA
;
308 if (fe
->i_flags
& cpu_to_le32(OCFS2_LOCAL_ALLOC_FL
)) {
309 OCFS2_I(inode
)->ip_flags
|= OCFS2_INODE_BITMAP
;
310 mlog(0, "local alloc inode: i_ino=%lu\n", inode
->i_ino
);
311 } else if (fe
->i_flags
& cpu_to_le32(OCFS2_BITMAP_FL
)) {
312 OCFS2_I(inode
)->ip_flags
|= OCFS2_INODE_BITMAP
;
313 } else if (fe
->i_flags
& cpu_to_le32(OCFS2_QUOTA_FL
)) {
314 inode
->i_flags
|= S_NOQUOTA
;
315 } else if (fe
->i_flags
& cpu_to_le32(OCFS2_SUPER_BLOCK_FL
)) {
316 mlog(0, "superblock inode: i_ino=%lu\n", inode
->i_ino
);
317 /* we can't actually hit this as read_inode can't
318 * handle superblocks today ;-) */
322 switch (inode
->i_mode
& S_IFMT
) {
325 inode
->i_fop
= &ocfs2_fops
;
327 inode
->i_fop
= &ocfs2_fops_no_plocks
;
328 inode
->i_op
= &ocfs2_file_iops
;
329 i_size_write(inode
, le64_to_cpu(fe
->i_size
));
332 inode
->i_op
= &ocfs2_dir_iops
;
334 inode
->i_fop
= &ocfs2_dops
;
336 inode
->i_fop
= &ocfs2_dops_no_plocks
;
337 i_size_write(inode
, le64_to_cpu(fe
->i_size
));
340 if (ocfs2_inode_is_fast_symlink(inode
))
341 inode
->i_op
= &ocfs2_fast_symlink_inode_operations
;
343 inode
->i_op
= &ocfs2_symlink_inode_operations
;
344 i_size_write(inode
, le64_to_cpu(fe
->i_size
));
347 inode
->i_op
= &ocfs2_special_file_iops
;
348 init_special_inode(inode
, inode
->i_mode
,
354 inode
->i_ino
= ino_from_blkno(inode
->i_sb
,
355 le64_to_cpu(fe
->i_blkno
));
358 * If we ever want to create system files from kernel,
359 * the generation argument to
360 * ocfs2_inode_lock_res_init() will have to change.
362 BUG_ON(le32_to_cpu(fe
->i_flags
) & OCFS2_SYSTEM_FL
);
364 ocfs2_inode_lock_res_init(&OCFS2_I(inode
)->ip_inode_lockres
,
365 OCFS2_LOCK_TYPE_META
, 0, inode
);
367 ocfs2_inode_lock_res_init(&OCFS2_I(inode
)->ip_open_lockres
,
368 OCFS2_LOCK_TYPE_OPEN
, 0, inode
);
371 ocfs2_inode_lock_res_init(&OCFS2_I(inode
)->ip_rw_lockres
,
372 OCFS2_LOCK_TYPE_RW
, inode
->i_generation
,
375 ocfs2_set_inode_flags(inode
);
377 OCFS2_I(inode
)->ip_last_used_slot
= 0;
378 OCFS2_I(inode
)->ip_last_used_group
= 0;
382 static int ocfs2_read_locked_inode(struct inode
*inode
,
383 struct ocfs2_find_inode_args
*args
)
385 struct super_block
*sb
;
386 struct ocfs2_super
*osb
;
387 struct ocfs2_dinode
*fe
;
388 struct buffer_head
*bh
= NULL
;
389 int status
, can_lock
;
392 mlog_entry("(0x%p, 0x%p)\n", inode
, args
);
395 if (inode
== NULL
|| inode
->i_sb
== NULL
) {
396 mlog(ML_ERROR
, "bad inode\n");
403 mlog(ML_ERROR
, "bad inode args\n");
404 make_bad_inode(inode
);
409 * To improve performance of cold-cache inode stats, we take
410 * the cluster lock here if possible.
412 * Generally, OCFS2 never trusts the contents of an inode
413 * unless it's holding a cluster lock, so taking it here isn't
414 * a correctness issue as much as it is a performance
417 * There are three times when taking the lock is not a good idea:
419 * 1) During startup, before we have initialized the DLM.
421 * 2) If we are reading certain system files which never get
422 * cluster locks (local alloc, truncate log).
424 * 3) If the process doing the iget() is responsible for
425 * orphan dir recovery. We're holding the orphan dir lock and
426 * can get into a deadlock with another process on another
427 * node in ->delete_inode().
429 * #1 and #2 can be simply solved by never taking the lock
430 * here for system files (which are the only type we read
431 * during mount). It's a heavier approach, but our main
432 * concern is user-accesible files anyway.
434 * #3 works itself out because we'll eventually take the
435 * cluster lock before trusting anything anyway.
437 can_lock
= !(args
->fi_flags
& OCFS2_FI_FLAG_SYSFILE
)
438 && !(args
->fi_flags
& OCFS2_FI_FLAG_ORPHAN_RECOVERY
)
439 && !ocfs2_mount_local(osb
);
442 * To maintain backwards compatibility with older versions of
443 * ocfs2-tools, we still store the generation value for system
444 * files. The only ones that actually matter to userspace are
445 * the journals, but it's easier and inexpensive to just flag
446 * all system files similarly.
448 if (args
->fi_flags
& OCFS2_FI_FLAG_SYSFILE
)
449 generation
= osb
->fs_generation
;
451 ocfs2_inode_lock_res_init(&OCFS2_I(inode
)->ip_inode_lockres
,
452 OCFS2_LOCK_TYPE_META
,
455 ocfs2_inode_lock_res_init(&OCFS2_I(inode
)->ip_open_lockres
,
456 OCFS2_LOCK_TYPE_OPEN
,
460 status
= ocfs2_open_lock(inode
);
462 make_bad_inode(inode
);
466 status
= ocfs2_inode_lock(inode
, NULL
, 0);
468 make_bad_inode(inode
);
474 if (args
->fi_flags
& OCFS2_FI_FLAG_ORPHAN_RECOVERY
) {
475 status
= ocfs2_try_open_lock(inode
, 0);
477 make_bad_inode(inode
);
483 status
= ocfs2_read_inode_block_full(inode
, &bh
,
484 OCFS2_BH_IGNORE_CACHE
);
486 status
= ocfs2_read_blocks_sync(osb
, args
->fi_blkno
, 1, &bh
);
488 status
= ocfs2_validate_inode_block(osb
->sb
, bh
);
496 fe
= (struct ocfs2_dinode
*) bh
->b_data
;
499 * This is a code bug. Right now the caller needs to
500 * understand whether it is asking for a system file inode or
501 * not so the proper lock names can be built.
503 mlog_bug_on_msg(!!(fe
->i_flags
& cpu_to_le32(OCFS2_SYSTEM_FL
)) !=
504 !!(args
->fi_flags
& OCFS2_FI_FLAG_SYSFILE
),
505 "Inode %llu: system file state is ambigous\n",
506 (unsigned long long)args
->fi_blkno
);
508 if (S_ISCHR(le16_to_cpu(fe
->i_mode
)) ||
509 S_ISBLK(le16_to_cpu(fe
->i_mode
)))
510 inode
->i_rdev
= huge_decode_dev(le64_to_cpu(fe
->id1
.dev1
.i_rdev
));
512 ocfs2_populate_inode(inode
, fe
, 0);
514 BUG_ON(args
->fi_blkno
!= le64_to_cpu(fe
->i_blkno
));
520 ocfs2_inode_unlock(inode
, 0);
523 make_bad_inode(inode
);
532 void ocfs2_sync_blockdev(struct super_block
*sb
)
534 sync_blockdev(sb
->s_bdev
);
537 static int ocfs2_truncate_for_delete(struct ocfs2_super
*osb
,
539 struct buffer_head
*fe_bh
)
542 struct ocfs2_truncate_context
*tc
= NULL
;
543 struct ocfs2_dinode
*fe
;
544 handle_t
*handle
= NULL
;
548 fe
= (struct ocfs2_dinode
*) fe_bh
->b_data
;
551 * This check will also skip truncate of inodes with inline
552 * data and fast symlinks.
554 if (fe
->i_clusters
) {
555 if (ocfs2_should_order_data(inode
))
556 ocfs2_begin_ordered_truncate(inode
, 0);
558 handle
= ocfs2_start_trans(osb
, OCFS2_INODE_UPDATE_CREDITS
);
559 if (IS_ERR(handle
)) {
560 status
= PTR_ERR(handle
);
565 status
= ocfs2_journal_access_di(handle
, INODE_CACHE(inode
),
567 OCFS2_JOURNAL_ACCESS_WRITE
);
573 i_size_write(inode
, 0);
575 status
= ocfs2_mark_inode_dirty(handle
, inode
, fe_bh
);
581 ocfs2_commit_trans(osb
, handle
);
584 status
= ocfs2_prepare_truncate(osb
, inode
, fe_bh
, &tc
);
590 status
= ocfs2_commit_truncate(osb
, inode
, fe_bh
, tc
);
599 ocfs2_commit_trans(osb
, handle
);
604 static int ocfs2_remove_inode(struct inode
*inode
,
605 struct buffer_head
*di_bh
,
606 struct inode
*orphan_dir_inode
,
607 struct buffer_head
*orphan_dir_bh
)
610 struct inode
*inode_alloc_inode
= NULL
;
611 struct buffer_head
*inode_alloc_bh
= NULL
;
613 struct ocfs2_super
*osb
= OCFS2_SB(inode
->i_sb
);
614 struct ocfs2_dinode
*di
= (struct ocfs2_dinode
*) di_bh
->b_data
;
617 ocfs2_get_system_file_inode(osb
, INODE_ALLOC_SYSTEM_INODE
,
618 le16_to_cpu(di
->i_suballoc_slot
));
619 if (!inode_alloc_inode
) {
625 mutex_lock(&inode_alloc_inode
->i_mutex
);
626 status
= ocfs2_inode_lock(inode_alloc_inode
, &inode_alloc_bh
, 1);
628 mutex_unlock(&inode_alloc_inode
->i_mutex
);
634 handle
= ocfs2_start_trans(osb
, OCFS2_DELETE_INODE_CREDITS
+
635 ocfs2_quota_trans_credits(inode
->i_sb
));
636 if (IS_ERR(handle
)) {
637 status
= PTR_ERR(handle
);
642 status
= ocfs2_orphan_del(osb
, handle
, orphan_dir_inode
, inode
,
649 /* set the inodes dtime */
650 status
= ocfs2_journal_access_di(handle
, INODE_CACHE(inode
), di_bh
,
651 OCFS2_JOURNAL_ACCESS_WRITE
);
657 di
->i_dtime
= cpu_to_le64(CURRENT_TIME
.tv_sec
);
658 di
->i_flags
&= cpu_to_le32(~(OCFS2_VALID_FL
| OCFS2_ORPHANED_FL
));
660 status
= ocfs2_journal_dirty(handle
, di_bh
);
666 ocfs2_remove_from_cache(INODE_CACHE(inode
), di_bh
);
667 dquot_free_inode(inode
);
669 status
= ocfs2_free_dinode(handle
, inode_alloc_inode
,
675 ocfs2_commit_trans(osb
, handle
);
677 ocfs2_inode_unlock(inode_alloc_inode
, 1);
678 mutex_unlock(&inode_alloc_inode
->i_mutex
);
679 brelse(inode_alloc_bh
);
681 iput(inode_alloc_inode
);
687 * Serialize with orphan dir recovery. If the process doing
688 * recovery on this orphan dir does an iget() with the dir
689 * i_mutex held, we'll deadlock here. Instead we detect this
690 * and exit early - recovery will wipe this inode for us.
692 static int ocfs2_check_orphan_recovery_state(struct ocfs2_super
*osb
,
697 spin_lock(&osb
->osb_lock
);
698 if (ocfs2_node_map_test_bit(osb
, &osb
->osb_recovering_orphan_dirs
, slot
)) {
699 mlog(0, "Recovery is happening on orphan dir %d, will skip "
700 "this inode\n", slot
);
704 /* This signals to the orphan recovery process that it should
705 * wait for us to handle the wipe. */
706 osb
->osb_orphan_wipes
[slot
]++;
708 spin_unlock(&osb
->osb_lock
);
712 static void ocfs2_signal_wipe_completion(struct ocfs2_super
*osb
,
715 spin_lock(&osb
->osb_lock
);
716 osb
->osb_orphan_wipes
[slot
]--;
717 spin_unlock(&osb
->osb_lock
);
719 wake_up(&osb
->osb_wipe_event
);
722 static int ocfs2_wipe_inode(struct inode
*inode
,
723 struct buffer_head
*di_bh
)
725 int status
, orphaned_slot
;
726 struct inode
*orphan_dir_inode
= NULL
;
727 struct buffer_head
*orphan_dir_bh
= NULL
;
728 struct ocfs2_super
*osb
= OCFS2_SB(inode
->i_sb
);
729 struct ocfs2_dinode
*di
;
731 di
= (struct ocfs2_dinode
*) di_bh
->b_data
;
732 orphaned_slot
= le16_to_cpu(di
->i_orphaned_slot
);
734 status
= ocfs2_check_orphan_recovery_state(osb
, orphaned_slot
);
738 orphan_dir_inode
= ocfs2_get_system_file_inode(osb
,
739 ORPHAN_DIR_SYSTEM_INODE
,
741 if (!orphan_dir_inode
) {
747 /* Lock the orphan dir. The lock will be held for the entire
748 * delete_inode operation. We do this now to avoid races with
749 * recovery completion on other nodes. */
750 mutex_lock(&orphan_dir_inode
->i_mutex
);
751 status
= ocfs2_inode_lock(orphan_dir_inode
, &orphan_dir_bh
, 1);
753 mutex_unlock(&orphan_dir_inode
->i_mutex
);
759 /* we do this while holding the orphan dir lock because we
760 * don't want recovery being run from another node to try an
761 * inode delete underneath us -- this will result in two nodes
762 * truncating the same file! */
763 status
= ocfs2_truncate_for_delete(osb
, inode
, di_bh
);
766 goto bail_unlock_dir
;
769 /* Remove any dir index tree */
770 if (S_ISDIR(inode
->i_mode
)) {
771 status
= ocfs2_dx_dir_truncate(inode
, di_bh
);
774 goto bail_unlock_dir
;
778 /*Free extended attribute resources associated with this inode.*/
779 status
= ocfs2_xattr_remove(inode
, di_bh
);
782 goto bail_unlock_dir
;
785 status
= ocfs2_remove_refcount_tree(inode
, di_bh
);
788 goto bail_unlock_dir
;
791 status
= ocfs2_remove_inode(inode
, di_bh
, orphan_dir_inode
,
797 ocfs2_inode_unlock(orphan_dir_inode
, 1);
798 mutex_unlock(&orphan_dir_inode
->i_mutex
);
799 brelse(orphan_dir_bh
);
801 iput(orphan_dir_inode
);
802 ocfs2_signal_wipe_completion(osb
, orphaned_slot
);
807 /* There is a series of simple checks that should be done before a
808 * trylock is even considered. Encapsulate those in this function. */
809 static int ocfs2_inode_is_valid_to_delete(struct inode
*inode
)
812 struct ocfs2_inode_info
*oi
= OCFS2_I(inode
);
813 struct ocfs2_super
*osb
= OCFS2_SB(inode
->i_sb
);
815 /* We shouldn't be getting here for the root directory
817 if (inode
== osb
->root_inode
) {
818 mlog(ML_ERROR
, "Skipping delete of root inode.\n");
822 /* If we're coming from downconvert_thread we can't go into our own
823 * voting [hello, deadlock city!], so unforuntately we just
824 * have to skip deleting this guy. That's OK though because
825 * the node who's doing the actual deleting should handle it
827 if (current
== osb
->dc_task
) {
828 mlog(0, "Skipping delete of %lu because we're currently "
829 "in downconvert\n", inode
->i_ino
);
833 spin_lock(&oi
->ip_lock
);
834 /* OCFS2 *never* deletes system files. This should technically
835 * never get here as system file inodes should always have a
836 * positive link count. */
837 if (oi
->ip_flags
& OCFS2_INODE_SYSTEM_FILE
) {
838 mlog(ML_ERROR
, "Skipping delete of system file %llu\n",
839 (unsigned long long)oi
->ip_blkno
);
843 /* If we have allowd wipe of this inode for another node, it
844 * will be marked here so we can safely skip it. Recovery will
845 * cleanup any inodes we might inadvertantly skip here. */
846 if (oi
->ip_flags
& OCFS2_INODE_SKIP_DELETE
) {
847 mlog(0, "Skipping delete of %lu because another node "
848 "has done this for us.\n", inode
->i_ino
);
854 spin_unlock(&oi
->ip_lock
);
859 /* Query the cluster to determine whether we should wipe an inode from
862 * Requires the inode to have the cluster lock. */
863 static int ocfs2_query_inode_wipe(struct inode
*inode
,
864 struct buffer_head
*di_bh
,
868 struct ocfs2_inode_info
*oi
= OCFS2_I(inode
);
869 struct ocfs2_dinode
*di
;
873 /* While we were waiting for the cluster lock in
874 * ocfs2_delete_inode, another node might have asked to delete
875 * the inode. Recheck our flags to catch this. */
876 if (!ocfs2_inode_is_valid_to_delete(inode
)) {
877 mlog(0, "Skipping delete of %llu because flags changed\n",
878 (unsigned long long)oi
->ip_blkno
);
882 /* Now that we have an up to date inode, we can double check
884 if (inode
->i_nlink
) {
885 mlog(0, "Skipping delete of %llu because nlink = %u\n",
886 (unsigned long long)oi
->ip_blkno
, inode
->i_nlink
);
890 /* Do some basic inode verification... */
891 di
= (struct ocfs2_dinode
*) di_bh
->b_data
;
892 if (!(di
->i_flags
& cpu_to_le32(OCFS2_ORPHANED_FL
))) {
894 * Inodes in the orphan dir must have ORPHANED_FL. The only
895 * inodes that come back out of the orphan dir are reflink
896 * targets. A reflink target may be moved out of the orphan
897 * dir between the time we scan the directory and the time we
898 * process it. This would lead to HAS_REFCOUNT_FL being set but
901 if (di
->i_dyn_features
& cpu_to_le16(OCFS2_HAS_REFCOUNT_FL
)) {
902 mlog(0, "Reflinked inode %llu is no longer orphaned. "
903 "it shouldn't be deleted\n",
904 (unsigned long long)oi
->ip_blkno
);
908 /* for lack of a better error? */
911 "Inode %llu (on-disk %llu) not orphaned! "
912 "Disk flags 0x%x, inode flags 0x%x\n",
913 (unsigned long long)oi
->ip_blkno
,
914 (unsigned long long)le64_to_cpu(di
->i_blkno
),
915 le32_to_cpu(di
->i_flags
), oi
->ip_flags
);
919 /* has someone already deleted us?! baaad... */
927 * This is how ocfs2 determines whether an inode is still live
928 * within the cluster. Every node takes a shared read lock on
929 * the inode open lock in ocfs2_read_locked_inode(). When we
930 * get to ->delete_inode(), each node tries to convert it's
931 * lock to an exclusive. Trylocks are serialized by the inode
932 * meta data lock. If the upconvert suceeds, we know the inode
933 * is no longer live and can be deleted.
935 * Though we call this with the meta data lock held, the
936 * trylock keeps us from ABBA deadlock.
938 status
= ocfs2_try_open_lock(inode
, 1);
939 if (status
== -EAGAIN
) {
941 mlog(0, "Skipping delete of %llu because it is in use on "
942 "other nodes\n", (unsigned long long)oi
->ip_blkno
);
951 mlog(0, "Inode %llu is ok to wipe from orphan dir %u\n",
952 (unsigned long long)oi
->ip_blkno
,
953 le16_to_cpu(di
->i_orphaned_slot
));
959 /* Support function for ocfs2_delete_inode. Will help us keep the
960 * inode data in a consistent state for clear_inode. Always truncates
961 * pages, optionally sync's them first. */
962 static void ocfs2_cleanup_delete_inode(struct inode
*inode
,
965 mlog(0, "Cleanup inode %llu, sync = %d\n",
966 (unsigned long long)OCFS2_I(inode
)->ip_blkno
, sync_data
);
968 write_inode_now(inode
, 1);
969 truncate_inode_pages(&inode
->i_data
, 0);
972 void ocfs2_delete_inode(struct inode
*inode
)
975 sigset_t blocked
, oldset
;
976 struct buffer_head
*di_bh
= NULL
;
978 mlog_entry("(inode->i_ino = %lu)\n", inode
->i_ino
);
980 /* When we fail in read_inode() we mark inode as bad. The second test
981 * catches the case when inode allocation fails before allocating
982 * a block for inode. */
983 if (is_bad_inode(inode
) || !OCFS2_I(inode
)->ip_blkno
) {
984 mlog(0, "Skipping delete of bad inode\n");
988 dquot_initialize(inode
);
990 if (!ocfs2_inode_is_valid_to_delete(inode
)) {
991 /* It's probably not necessary to truncate_inode_pages
992 * here but we do it for safety anyway (it will most
993 * likely be a no-op anyway) */
994 ocfs2_cleanup_delete_inode(inode
, 0);
998 /* We want to block signals in delete_inode as the lock and
999 * messaging paths may return us -ERESTARTSYS. Which would
1000 * cause us to exit early, resulting in inodes being orphaned
1002 sigfillset(&blocked
);
1003 status
= sigprocmask(SIG_BLOCK
, &blocked
, &oldset
);
1006 ocfs2_cleanup_delete_inode(inode
, 1);
1011 * Synchronize us against ocfs2_get_dentry. We take this in
1012 * shared mode so that all nodes can still concurrently
1015 status
= ocfs2_nfs_sync_lock(OCFS2_SB(inode
->i_sb
), 0);
1017 mlog(ML_ERROR
, "getting nfs sync lock(PR) failed %d\n", status
);
1018 ocfs2_cleanup_delete_inode(inode
, 0);
1021 /* Lock down the inode. This gives us an up to date view of
1022 * it's metadata (for verification), and allows us to
1023 * serialize delete_inode on multiple nodes.
1025 * Even though we might be doing a truncate, we don't take the
1026 * allocation lock here as it won't be needed - nobody will
1027 * have the file open.
1029 status
= ocfs2_inode_lock(inode
, &di_bh
, 1);
1031 if (status
!= -ENOENT
)
1033 ocfs2_cleanup_delete_inode(inode
, 0);
1034 goto bail_unlock_nfs_sync
;
1037 /* Query the cluster. This will be the final decision made
1038 * before we go ahead and wipe the inode. */
1039 status
= ocfs2_query_inode_wipe(inode
, di_bh
, &wipe
);
1040 if (!wipe
|| status
< 0) {
1041 /* Error and remote inode busy both mean we won't be
1042 * removing the inode, so they take almost the same
1047 /* Someone in the cluster has disallowed a wipe of
1048 * this inode, or it was never completely
1049 * orphaned. Write out the pages and exit now. */
1050 ocfs2_cleanup_delete_inode(inode
, 1);
1051 goto bail_unlock_inode
;
1054 ocfs2_cleanup_delete_inode(inode
, 0);
1056 status
= ocfs2_wipe_inode(inode
, di_bh
);
1058 if (status
!= -EDEADLK
)
1060 goto bail_unlock_inode
;
1064 * Mark the inode as successfully deleted.
1066 * This is important for ocfs2_clear_inode() as it will check
1067 * this flag and skip any checkpointing work
1069 * ocfs2_stuff_meta_lvb() also uses this flag to invalidate
1070 * the LVB for other nodes.
1072 OCFS2_I(inode
)->ip_flags
|= OCFS2_INODE_DELETED
;
1075 ocfs2_inode_unlock(inode
, 1);
1078 bail_unlock_nfs_sync
:
1079 ocfs2_nfs_sync_unlock(OCFS2_SB(inode
->i_sb
), 0);
1082 status
= sigprocmask(SIG_SETMASK
, &oldset
, NULL
);
1090 void ocfs2_clear_inode(struct inode
*inode
)
1093 struct ocfs2_inode_info
*oi
= OCFS2_I(inode
);
1100 mlog(0, "Clearing inode: %llu, nlink = %u\n",
1101 (unsigned long long)OCFS2_I(inode
)->ip_blkno
, inode
->i_nlink
);
1103 mlog_bug_on_msg(OCFS2_SB(inode
->i_sb
) == NULL
,
1104 "Inode=%lu\n", inode
->i_ino
);
1108 /* To preven remote deletes we hold open lock before, now it
1109 * is time to unlock PR and EX open locks. */
1110 ocfs2_open_unlock(inode
);
1112 /* Do these before all the other work so that we don't bounce
1113 * the downconvert thread while waiting to destroy the locks. */
1114 ocfs2_mark_lockres_freeing(&oi
->ip_rw_lockres
);
1115 ocfs2_mark_lockres_freeing(&oi
->ip_inode_lockres
);
1116 ocfs2_mark_lockres_freeing(&oi
->ip_open_lockres
);
1118 /* We very well may get a clear_inode before all an inodes
1119 * metadata has hit disk. Of course, we can't drop any cluster
1120 * locks until the journal has finished with it. The only
1121 * exception here are successfully wiped inodes - their
1122 * metadata can now be considered to be part of the system
1123 * inodes from which it came. */
1124 if (!(OCFS2_I(inode
)->ip_flags
& OCFS2_INODE_DELETED
))
1125 ocfs2_checkpoint_inode(inode
);
1127 mlog_bug_on_msg(!list_empty(&oi
->ip_io_markers
),
1128 "Clear inode of %llu, inode has io markers\n",
1129 (unsigned long long)oi
->ip_blkno
);
1131 ocfs2_extent_map_trunc(inode
, 0);
1133 status
= ocfs2_drop_inode_locks(inode
);
1137 ocfs2_lock_res_free(&oi
->ip_rw_lockres
);
1138 ocfs2_lock_res_free(&oi
->ip_inode_lockres
);
1139 ocfs2_lock_res_free(&oi
->ip_open_lockres
);
1141 ocfs2_metadata_cache_exit(INODE_CACHE(inode
));
1143 mlog_bug_on_msg(INODE_CACHE(inode
)->ci_num_cached
,
1144 "Clear inode of %llu, inode has %u cache items\n",
1145 (unsigned long long)oi
->ip_blkno
,
1146 INODE_CACHE(inode
)->ci_num_cached
);
1148 mlog_bug_on_msg(!(INODE_CACHE(inode
)->ci_flags
& OCFS2_CACHE_FL_INLINE
),
1149 "Clear inode of %llu, inode has a bad flag\n",
1150 (unsigned long long)oi
->ip_blkno
);
1152 mlog_bug_on_msg(spin_is_locked(&oi
->ip_lock
),
1153 "Clear inode of %llu, inode is locked\n",
1154 (unsigned long long)oi
->ip_blkno
);
1156 mlog_bug_on_msg(!mutex_trylock(&oi
->ip_io_mutex
),
1157 "Clear inode of %llu, io_mutex is locked\n",
1158 (unsigned long long)oi
->ip_blkno
);
1159 mutex_unlock(&oi
->ip_io_mutex
);
1162 * down_trylock() returns 0, down_write_trylock() returns 1
1165 mlog_bug_on_msg(!down_write_trylock(&oi
->ip_alloc_sem
),
1166 "Clear inode of %llu, alloc_sem is locked\n",
1167 (unsigned long long)oi
->ip_blkno
);
1168 up_write(&oi
->ip_alloc_sem
);
1170 mlog_bug_on_msg(oi
->ip_open_count
,
1171 "Clear inode of %llu has open count %d\n",
1172 (unsigned long long)oi
->ip_blkno
, oi
->ip_open_count
);
1174 /* Clear all other flags. */
1176 oi
->ip_dir_start_lookup
= 0;
1177 oi
->ip_blkno
= 0ULL;
1180 * ip_jinode is used to track txns against this inode. We ensure that
1181 * the journal is flushed before journal shutdown. Thus it is safe to
1182 * have inodes get cleaned up after journal shutdown.
1184 jbd2_journal_release_jbd_inode(OCFS2_SB(inode
->i_sb
)->journal
->j_journal
,
1191 /* Called under inode_lock, with no more references on the
1192 * struct inode, so it's safe here to check the flags field
1193 * and to manipulate i_nlink without any other locks. */
1194 void ocfs2_drop_inode(struct inode
*inode
)
1196 struct ocfs2_inode_info
*oi
= OCFS2_I(inode
);
1200 mlog(0, "Drop inode %llu, nlink = %u, ip_flags = 0x%x\n",
1201 (unsigned long long)oi
->ip_blkno
, inode
->i_nlink
, oi
->ip_flags
);
1203 if (oi
->ip_flags
& OCFS2_INODE_MAYBE_ORPHANED
)
1204 generic_delete_inode(inode
);
1206 generic_drop_inode(inode
);
1212 * This is called from our getattr.
1214 int ocfs2_inode_revalidate(struct dentry
*dentry
)
1216 struct inode
*inode
= dentry
->d_inode
;
1219 mlog_entry("(inode = 0x%p, ino = %llu)\n", inode
,
1220 inode
? (unsigned long long)OCFS2_I(inode
)->ip_blkno
: 0ULL);
1223 mlog(0, "eep, no inode!\n");
1228 spin_lock(&OCFS2_I(inode
)->ip_lock
);
1229 if (OCFS2_I(inode
)->ip_flags
& OCFS2_INODE_DELETED
) {
1230 spin_unlock(&OCFS2_I(inode
)->ip_lock
);
1231 mlog(0, "inode deleted!\n");
1235 spin_unlock(&OCFS2_I(inode
)->ip_lock
);
1237 /* Let ocfs2_inode_lock do the work of updating our struct
1239 status
= ocfs2_inode_lock(inode
, NULL
, 0);
1241 if (status
!= -ENOENT
)
1245 ocfs2_inode_unlock(inode
, 0);
1253 * Updates a disk inode from a
1255 * Only takes ip_lock.
1257 int ocfs2_mark_inode_dirty(handle_t
*handle
,
1258 struct inode
*inode
,
1259 struct buffer_head
*bh
)
1262 struct ocfs2_dinode
*fe
= (struct ocfs2_dinode
*) bh
->b_data
;
1264 mlog_entry("(inode %llu)\n",
1265 (unsigned long long)OCFS2_I(inode
)->ip_blkno
);
1267 status
= ocfs2_journal_access_di(handle
, INODE_CACHE(inode
), bh
,
1268 OCFS2_JOURNAL_ACCESS_WRITE
);
1274 spin_lock(&OCFS2_I(inode
)->ip_lock
);
1275 fe
->i_clusters
= cpu_to_le32(OCFS2_I(inode
)->ip_clusters
);
1276 ocfs2_get_inode_flags(OCFS2_I(inode
));
1277 fe
->i_attr
= cpu_to_le32(OCFS2_I(inode
)->ip_attr
);
1278 fe
->i_dyn_features
= cpu_to_le16(OCFS2_I(inode
)->ip_dyn_features
);
1279 spin_unlock(&OCFS2_I(inode
)->ip_lock
);
1281 fe
->i_size
= cpu_to_le64(i_size_read(inode
));
1282 ocfs2_set_links_count(fe
, inode
->i_nlink
);
1283 fe
->i_uid
= cpu_to_le32(inode
->i_uid
);
1284 fe
->i_gid
= cpu_to_le32(inode
->i_gid
);
1285 fe
->i_mode
= cpu_to_le16(inode
->i_mode
);
1286 fe
->i_atime
= cpu_to_le64(inode
->i_atime
.tv_sec
);
1287 fe
->i_atime_nsec
= cpu_to_le32(inode
->i_atime
.tv_nsec
);
1288 fe
->i_ctime
= cpu_to_le64(inode
->i_ctime
.tv_sec
);
1289 fe
->i_ctime_nsec
= cpu_to_le32(inode
->i_ctime
.tv_nsec
);
1290 fe
->i_mtime
= cpu_to_le64(inode
->i_mtime
.tv_sec
);
1291 fe
->i_mtime_nsec
= cpu_to_le32(inode
->i_mtime
.tv_nsec
);
1293 status
= ocfs2_journal_dirty(handle
, bh
);
1306 * Updates a struct inode from a disk inode.
1307 * does no i/o, only takes ip_lock.
1309 void ocfs2_refresh_inode(struct inode
*inode
,
1310 struct ocfs2_dinode
*fe
)
1312 spin_lock(&OCFS2_I(inode
)->ip_lock
);
1314 OCFS2_I(inode
)->ip_clusters
= le32_to_cpu(fe
->i_clusters
);
1315 OCFS2_I(inode
)->ip_attr
= le32_to_cpu(fe
->i_attr
);
1316 OCFS2_I(inode
)->ip_dyn_features
= le16_to_cpu(fe
->i_dyn_features
);
1317 ocfs2_set_inode_flags(inode
);
1318 i_size_write(inode
, le64_to_cpu(fe
->i_size
));
1319 inode
->i_nlink
= ocfs2_read_links_count(fe
);
1320 inode
->i_uid
= le32_to_cpu(fe
->i_uid
);
1321 inode
->i_gid
= le32_to_cpu(fe
->i_gid
);
1322 inode
->i_mode
= le16_to_cpu(fe
->i_mode
);
1323 if (S_ISLNK(inode
->i_mode
) && le32_to_cpu(fe
->i_clusters
) == 0)
1324 inode
->i_blocks
= 0;
1326 inode
->i_blocks
= ocfs2_inode_sector_count(inode
);
1327 inode
->i_atime
.tv_sec
= le64_to_cpu(fe
->i_atime
);
1328 inode
->i_atime
.tv_nsec
= le32_to_cpu(fe
->i_atime_nsec
);
1329 inode
->i_mtime
.tv_sec
= le64_to_cpu(fe
->i_mtime
);
1330 inode
->i_mtime
.tv_nsec
= le32_to_cpu(fe
->i_mtime_nsec
);
1331 inode
->i_ctime
.tv_sec
= le64_to_cpu(fe
->i_ctime
);
1332 inode
->i_ctime
.tv_nsec
= le32_to_cpu(fe
->i_ctime_nsec
);
1334 spin_unlock(&OCFS2_I(inode
)->ip_lock
);
1337 int ocfs2_validate_inode_block(struct super_block
*sb
,
1338 struct buffer_head
*bh
)
1341 struct ocfs2_dinode
*di
= (struct ocfs2_dinode
*)bh
->b_data
;
1343 mlog(0, "Validating dinode %llu\n",
1344 (unsigned long long)bh
->b_blocknr
);
1346 BUG_ON(!buffer_uptodate(bh
));
1349 * If the ecc fails, we return the error but otherwise
1350 * leave the filesystem running. We know any error is
1351 * local to this block.
1353 rc
= ocfs2_validate_meta_ecc(sb
, bh
->b_data
, &di
->i_check
);
1355 mlog(ML_ERROR
, "Checksum failed for dinode %llu\n",
1356 (unsigned long long)bh
->b_blocknr
);
1361 * Errors after here are fatal.
1366 if (!OCFS2_IS_VALID_DINODE(di
)) {
1367 ocfs2_error(sb
, "Invalid dinode #%llu: signature = %.*s\n",
1368 (unsigned long long)bh
->b_blocknr
, 7,
1373 if (le64_to_cpu(di
->i_blkno
) != bh
->b_blocknr
) {
1374 ocfs2_error(sb
, "Invalid dinode #%llu: i_blkno is %llu\n",
1375 (unsigned long long)bh
->b_blocknr
,
1376 (unsigned long long)le64_to_cpu(di
->i_blkno
));
1380 if (!(di
->i_flags
& cpu_to_le32(OCFS2_VALID_FL
))) {
1382 "Invalid dinode #%llu: OCFS2_VALID_FL not set\n",
1383 (unsigned long long)bh
->b_blocknr
);
1387 if (le32_to_cpu(di
->i_fs_generation
) !=
1388 OCFS2_SB(sb
)->fs_generation
) {
1390 "Invalid dinode #%llu: fs_generation is %u\n",
1391 (unsigned long long)bh
->b_blocknr
,
1392 le32_to_cpu(di
->i_fs_generation
));
1402 int ocfs2_read_inode_block_full(struct inode
*inode
, struct buffer_head
**bh
,
1406 struct buffer_head
*tmp
= *bh
;
1408 rc
= ocfs2_read_blocks(INODE_CACHE(inode
), OCFS2_I(inode
)->ip_blkno
,
1409 1, &tmp
, flags
, ocfs2_validate_inode_block
);
1411 /* If ocfs2_read_blocks() got us a new bh, pass it up. */
1418 int ocfs2_read_inode_block(struct inode
*inode
, struct buffer_head
**bh
)
1420 return ocfs2_read_inode_block_full(inode
, bh
, 0);
1424 static u64
ocfs2_inode_cache_owner(struct ocfs2_caching_info
*ci
)
1426 struct ocfs2_inode_info
*oi
= cache_info_to_inode(ci
);
1428 return oi
->ip_blkno
;
1431 static struct super_block
*ocfs2_inode_cache_get_super(struct ocfs2_caching_info
*ci
)
1433 struct ocfs2_inode_info
*oi
= cache_info_to_inode(ci
);
1435 return oi
->vfs_inode
.i_sb
;
1438 static void ocfs2_inode_cache_lock(struct ocfs2_caching_info
*ci
)
1440 struct ocfs2_inode_info
*oi
= cache_info_to_inode(ci
);
1442 spin_lock(&oi
->ip_lock
);
1445 static void ocfs2_inode_cache_unlock(struct ocfs2_caching_info
*ci
)
1447 struct ocfs2_inode_info
*oi
= cache_info_to_inode(ci
);
1449 spin_unlock(&oi
->ip_lock
);
1452 static void ocfs2_inode_cache_io_lock(struct ocfs2_caching_info
*ci
)
1454 struct ocfs2_inode_info
*oi
= cache_info_to_inode(ci
);
1456 mutex_lock(&oi
->ip_io_mutex
);
1459 static void ocfs2_inode_cache_io_unlock(struct ocfs2_caching_info
*ci
)
1461 struct ocfs2_inode_info
*oi
= cache_info_to_inode(ci
);
1463 mutex_unlock(&oi
->ip_io_mutex
);
1466 const struct ocfs2_caching_operations ocfs2_inode_caching_ops
= {
1467 .co_owner
= ocfs2_inode_cache_owner
,
1468 .co_get_super
= ocfs2_inode_cache_get_super
,
1469 .co_cache_lock
= ocfs2_inode_cache_lock
,
1470 .co_cache_unlock
= ocfs2_inode_cache_unlock
,
1471 .co_io_lock
= ocfs2_inode_cache_io_lock
,
1472 .co_io_unlock
= ocfs2_inode_cache_io_unlock
,