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 #include <cluster/masklog.h>
40 #include "blockcheck.h"
42 #include "extent_map.h"
44 #include "heartbeat.h"
54 #include "refcounttree.h"
55 #include "ocfs2_trace.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 trace_ocfs2_iget_begin((unsigned long long)blkno
, flags
,
137 /* Ok. By now we've either got the offsets passed to us by the
138 * caller, or we just pulled them off the bh. Lets do some
139 * sanity checks to make sure they're OK. */
141 inode
= ERR_PTR(-EINVAL
);
142 mlog_errno(PTR_ERR(inode
));
146 args
.fi_blkno
= blkno
;
147 args
.fi_flags
= flags
;
148 args
.fi_ino
= ino_from_blkno(sb
, blkno
);
149 args
.fi_sysfile_type
= sysfile_type
;
151 inode
= iget5_locked(sb
, args
.fi_ino
, ocfs2_find_actor
,
152 ocfs2_init_locked_inode
, &args
);
153 /* inode was *not* in the inode cache. 2.6.x requires
154 * us to do our own read_inode call and unlock it
157 inode
= ERR_PTR(-ENOMEM
);
158 mlog_errno(PTR_ERR(inode
));
161 trace_ocfs2_iget5_locked(inode
->i_state
);
162 if (inode
->i_state
& I_NEW
) {
163 ocfs2_read_locked_inode(inode
, &args
);
164 unlock_new_inode(inode
);
166 if (is_bad_inode(inode
)) {
168 inode
= ERR_PTR(-ESTALE
);
173 if (!IS_ERR(inode
)) {
174 trace_ocfs2_iget_end(inode
,
175 (unsigned long long)OCFS2_I(inode
)->ip_blkno
);
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
);
197 mlog_bug_on_msg(!inode
, "No inode in find actor!\n");
199 trace_ocfs2_find_actor(inode
, inode
->i_ino
, opaque
, args
->fi_blkno
);
201 if (oi
->ip_blkno
!= args
->fi_blkno
)
210 * initialize the new inode, but don't do anything that would cause
212 * return 0 on success, 1 on failure
214 static int ocfs2_init_locked_inode(struct inode
*inode
, void *opaque
)
216 struct ocfs2_find_inode_args
*args
= opaque
;
217 static struct lock_class_key ocfs2_quota_ip_alloc_sem_key
,
218 ocfs2_file_ip_alloc_sem_key
;
220 inode
->i_ino
= args
->fi_ino
;
221 OCFS2_I(inode
)->ip_blkno
= args
->fi_blkno
;
222 if (args
->fi_sysfile_type
!= 0)
223 lockdep_set_class(&inode
->i_mutex
,
224 &ocfs2_sysfile_lock_key
[args
->fi_sysfile_type
]);
225 if (args
->fi_sysfile_type
== USER_QUOTA_SYSTEM_INODE
||
226 args
->fi_sysfile_type
== GROUP_QUOTA_SYSTEM_INODE
||
227 args
->fi_sysfile_type
== LOCAL_USER_QUOTA_SYSTEM_INODE
||
228 args
->fi_sysfile_type
== LOCAL_GROUP_QUOTA_SYSTEM_INODE
)
229 lockdep_set_class(&OCFS2_I(inode
)->ip_alloc_sem
,
230 &ocfs2_quota_ip_alloc_sem_key
);
232 lockdep_set_class(&OCFS2_I(inode
)->ip_alloc_sem
,
233 &ocfs2_file_ip_alloc_sem_key
);
238 void ocfs2_populate_inode(struct inode
*inode
, struct ocfs2_dinode
*fe
,
241 struct super_block
*sb
;
242 struct ocfs2_super
*osb
;
248 if ((osb
->s_mount_opt
& OCFS2_MOUNT_LOCALFLOCKS
) ||
249 ocfs2_mount_local(osb
) || !ocfs2_stack_supports_plocks())
253 * These have all been checked by ocfs2_read_inode_block() or set
254 * by ocfs2_mknod_locked(), so a failure is a code bug.
256 BUG_ON(!OCFS2_IS_VALID_DINODE(fe
)); /* This means that read_inode
257 cannot create a superblock
258 inode today. change if
260 BUG_ON(!(fe
->i_flags
& cpu_to_le32(OCFS2_VALID_FL
)));
261 BUG_ON(le32_to_cpu(fe
->i_fs_generation
) != osb
->fs_generation
);
264 OCFS2_I(inode
)->ip_clusters
= le32_to_cpu(fe
->i_clusters
);
265 OCFS2_I(inode
)->ip_attr
= le32_to_cpu(fe
->i_attr
);
266 OCFS2_I(inode
)->ip_dyn_features
= le16_to_cpu(fe
->i_dyn_features
);
268 inode
->i_version
= 1;
269 inode
->i_generation
= le32_to_cpu(fe
->i_generation
);
270 inode
->i_rdev
= huge_decode_dev(le64_to_cpu(fe
->id1
.dev1
.i_rdev
));
271 inode
->i_mode
= le16_to_cpu(fe
->i_mode
);
272 inode
->i_uid
= le32_to_cpu(fe
->i_uid
);
273 inode
->i_gid
= le32_to_cpu(fe
->i_gid
);
275 /* Fast symlinks will have i_size but no allocated clusters. */
276 if (S_ISLNK(inode
->i_mode
) && !fe
->i_clusters
)
279 inode
->i_blocks
= ocfs2_inode_sector_count(inode
);
280 inode
->i_mapping
->a_ops
= &ocfs2_aops
;
281 inode
->i_atime
.tv_sec
= le64_to_cpu(fe
->i_atime
);
282 inode
->i_atime
.tv_nsec
= le32_to_cpu(fe
->i_atime_nsec
);
283 inode
->i_mtime
.tv_sec
= le64_to_cpu(fe
->i_mtime
);
284 inode
->i_mtime
.tv_nsec
= le32_to_cpu(fe
->i_mtime_nsec
);
285 inode
->i_ctime
.tv_sec
= le64_to_cpu(fe
->i_ctime
);
286 inode
->i_ctime
.tv_nsec
= le32_to_cpu(fe
->i_ctime_nsec
);
288 if (OCFS2_I(inode
)->ip_blkno
!= le64_to_cpu(fe
->i_blkno
))
290 "ip_blkno %llu != i_blkno %llu!\n",
291 (unsigned long long)OCFS2_I(inode
)->ip_blkno
,
292 (unsigned long long)le64_to_cpu(fe
->i_blkno
));
294 inode
->i_nlink
= ocfs2_read_links_count(fe
);
296 trace_ocfs2_populate_inode(OCFS2_I(inode
)->ip_blkno
,
297 le32_to_cpu(fe
->i_flags
));
298 if (fe
->i_flags
& cpu_to_le32(OCFS2_SYSTEM_FL
)) {
299 OCFS2_I(inode
)->ip_flags
|= OCFS2_INODE_SYSTEM_FILE
;
300 inode
->i_flags
|= S_NOQUOTA
;
303 if (fe
->i_flags
& cpu_to_le32(OCFS2_LOCAL_ALLOC_FL
)) {
304 OCFS2_I(inode
)->ip_flags
|= OCFS2_INODE_BITMAP
;
305 } else if (fe
->i_flags
& cpu_to_le32(OCFS2_BITMAP_FL
)) {
306 OCFS2_I(inode
)->ip_flags
|= OCFS2_INODE_BITMAP
;
307 } else if (fe
->i_flags
& cpu_to_le32(OCFS2_QUOTA_FL
)) {
308 inode
->i_flags
|= S_NOQUOTA
;
309 } else if (fe
->i_flags
& cpu_to_le32(OCFS2_SUPER_BLOCK_FL
)) {
310 /* we can't actually hit this as read_inode can't
311 * handle superblocks today ;-) */
315 switch (inode
->i_mode
& S_IFMT
) {
318 inode
->i_fop
= &ocfs2_fops
;
320 inode
->i_fop
= &ocfs2_fops_no_plocks
;
321 inode
->i_op
= &ocfs2_file_iops
;
322 i_size_write(inode
, le64_to_cpu(fe
->i_size
));
325 inode
->i_op
= &ocfs2_dir_iops
;
327 inode
->i_fop
= &ocfs2_dops
;
329 inode
->i_fop
= &ocfs2_dops_no_plocks
;
330 i_size_write(inode
, le64_to_cpu(fe
->i_size
));
331 OCFS2_I(inode
)->ip_dir_lock_gen
= 1;
334 if (ocfs2_inode_is_fast_symlink(inode
))
335 inode
->i_op
= &ocfs2_fast_symlink_inode_operations
;
337 inode
->i_op
= &ocfs2_symlink_inode_operations
;
338 i_size_write(inode
, le64_to_cpu(fe
->i_size
));
341 inode
->i_op
= &ocfs2_special_file_iops
;
342 init_special_inode(inode
, inode
->i_mode
,
348 inode
->i_ino
= ino_from_blkno(inode
->i_sb
,
349 le64_to_cpu(fe
->i_blkno
));
352 * If we ever want to create system files from kernel,
353 * the generation argument to
354 * ocfs2_inode_lock_res_init() will have to change.
356 BUG_ON(le32_to_cpu(fe
->i_flags
) & OCFS2_SYSTEM_FL
);
358 ocfs2_inode_lock_res_init(&OCFS2_I(inode
)->ip_inode_lockres
,
359 OCFS2_LOCK_TYPE_META
, 0, inode
);
361 ocfs2_inode_lock_res_init(&OCFS2_I(inode
)->ip_open_lockres
,
362 OCFS2_LOCK_TYPE_OPEN
, 0, inode
);
365 ocfs2_inode_lock_res_init(&OCFS2_I(inode
)->ip_rw_lockres
,
366 OCFS2_LOCK_TYPE_RW
, inode
->i_generation
,
369 ocfs2_set_inode_flags(inode
);
371 OCFS2_I(inode
)->ip_last_used_slot
= 0;
372 OCFS2_I(inode
)->ip_last_used_group
= 0;
374 if (S_ISDIR(inode
->i_mode
))
375 ocfs2_resv_set_type(&OCFS2_I(inode
)->ip_la_data_resv
,
376 OCFS2_RESV_FLAG_DIR
);
379 static int ocfs2_read_locked_inode(struct inode
*inode
,
380 struct ocfs2_find_inode_args
*args
)
382 struct super_block
*sb
;
383 struct ocfs2_super
*osb
;
384 struct ocfs2_dinode
*fe
;
385 struct buffer_head
*bh
= NULL
;
386 int status
, can_lock
;
390 if (inode
== NULL
|| inode
->i_sb
== NULL
) {
391 mlog(ML_ERROR
, "bad inode\n");
398 mlog(ML_ERROR
, "bad inode args\n");
399 make_bad_inode(inode
);
404 * To improve performance of cold-cache inode stats, we take
405 * the cluster lock here if possible.
407 * Generally, OCFS2 never trusts the contents of an inode
408 * unless it's holding a cluster lock, so taking it here isn't
409 * a correctness issue as much as it is a performance
412 * There are three times when taking the lock is not a good idea:
414 * 1) During startup, before we have initialized the DLM.
416 * 2) If we are reading certain system files which never get
417 * cluster locks (local alloc, truncate log).
419 * 3) If the process doing the iget() is responsible for
420 * orphan dir recovery. We're holding the orphan dir lock and
421 * can get into a deadlock with another process on another
422 * node in ->delete_inode().
424 * #1 and #2 can be simply solved by never taking the lock
425 * here for system files (which are the only type we read
426 * during mount). It's a heavier approach, but our main
427 * concern is user-accessible files anyway.
429 * #3 works itself out because we'll eventually take the
430 * cluster lock before trusting anything anyway.
432 can_lock
= !(args
->fi_flags
& OCFS2_FI_FLAG_SYSFILE
)
433 && !(args
->fi_flags
& OCFS2_FI_FLAG_ORPHAN_RECOVERY
)
434 && !ocfs2_mount_local(osb
);
436 trace_ocfs2_read_locked_inode(
437 (unsigned long long)OCFS2_I(inode
)->ip_blkno
, can_lock
);
440 * To maintain backwards compatibility with older versions of
441 * ocfs2-tools, we still store the generation value for system
442 * files. The only ones that actually matter to userspace are
443 * the journals, but it's easier and inexpensive to just flag
444 * all system files similarly.
446 if (args
->fi_flags
& OCFS2_FI_FLAG_SYSFILE
)
447 generation
= osb
->fs_generation
;
449 ocfs2_inode_lock_res_init(&OCFS2_I(inode
)->ip_inode_lockres
,
450 OCFS2_LOCK_TYPE_META
,
453 ocfs2_inode_lock_res_init(&OCFS2_I(inode
)->ip_open_lockres
,
454 OCFS2_LOCK_TYPE_OPEN
,
458 status
= ocfs2_open_lock(inode
);
460 make_bad_inode(inode
);
464 status
= ocfs2_inode_lock(inode
, NULL
, 0);
466 make_bad_inode(inode
);
472 if (args
->fi_flags
& OCFS2_FI_FLAG_ORPHAN_RECOVERY
) {
473 status
= ocfs2_try_open_lock(inode
, 0);
475 make_bad_inode(inode
);
481 status
= ocfs2_read_inode_block_full(inode
, &bh
,
482 OCFS2_BH_IGNORE_CACHE
);
484 status
= ocfs2_read_blocks_sync(osb
, args
->fi_blkno
, 1, &bh
);
486 * If buffer is in jbd, then its checksum may not have been
489 if (!status
&& !buffer_jbd(bh
))
490 status
= ocfs2_validate_inode_block(osb
->sb
, bh
);
498 fe
= (struct ocfs2_dinode
*) bh
->b_data
;
501 * This is a code bug. Right now the caller needs to
502 * understand whether it is asking for a system file inode or
503 * not so the proper lock names can be built.
505 mlog_bug_on_msg(!!(fe
->i_flags
& cpu_to_le32(OCFS2_SYSTEM_FL
)) !=
506 !!(args
->fi_flags
& OCFS2_FI_FLAG_SYSFILE
),
507 "Inode %llu: system file state is ambigous\n",
508 (unsigned long long)args
->fi_blkno
);
510 if (S_ISCHR(le16_to_cpu(fe
->i_mode
)) ||
511 S_ISBLK(le16_to_cpu(fe
->i_mode
)))
512 inode
->i_rdev
= huge_decode_dev(le64_to_cpu(fe
->id1
.dev1
.i_rdev
));
514 ocfs2_populate_inode(inode
, fe
, 0);
516 BUG_ON(args
->fi_blkno
!= le64_to_cpu(fe
->i_blkno
));
522 ocfs2_inode_unlock(inode
, 0);
525 make_bad_inode(inode
);
533 void ocfs2_sync_blockdev(struct super_block
*sb
)
535 sync_blockdev(sb
->s_bdev
);
538 static int ocfs2_truncate_for_delete(struct ocfs2_super
*osb
,
540 struct buffer_head
*fe_bh
)
543 struct ocfs2_dinode
*fe
;
544 handle_t
*handle
= NULL
;
546 fe
= (struct ocfs2_dinode
*) fe_bh
->b_data
;
549 * This check will also skip truncate of inodes with inline
550 * data and fast symlinks.
552 if (fe
->i_clusters
) {
553 if (ocfs2_should_order_data(inode
))
554 ocfs2_begin_ordered_truncate(inode
, 0);
556 handle
= ocfs2_start_trans(osb
, OCFS2_INODE_UPDATE_CREDITS
);
557 if (IS_ERR(handle
)) {
558 status
= PTR_ERR(handle
);
564 status
= ocfs2_journal_access_di(handle
, INODE_CACHE(inode
),
566 OCFS2_JOURNAL_ACCESS_WRITE
);
572 i_size_write(inode
, 0);
574 status
= ocfs2_mark_inode_dirty(handle
, inode
, fe_bh
);
580 ocfs2_commit_trans(osb
, handle
);
583 status
= ocfs2_commit_truncate(osb
, inode
, fe_bh
);
592 ocfs2_commit_trans(osb
, handle
);
596 static int ocfs2_remove_inode(struct inode
*inode
,
597 struct buffer_head
*di_bh
,
598 struct inode
*orphan_dir_inode
,
599 struct buffer_head
*orphan_dir_bh
)
602 struct inode
*inode_alloc_inode
= NULL
;
603 struct buffer_head
*inode_alloc_bh
= NULL
;
605 struct ocfs2_super
*osb
= OCFS2_SB(inode
->i_sb
);
606 struct ocfs2_dinode
*di
= (struct ocfs2_dinode
*) di_bh
->b_data
;
609 ocfs2_get_system_file_inode(osb
, INODE_ALLOC_SYSTEM_INODE
,
610 le16_to_cpu(di
->i_suballoc_slot
));
611 if (!inode_alloc_inode
) {
617 mutex_lock(&inode_alloc_inode
->i_mutex
);
618 status
= ocfs2_inode_lock(inode_alloc_inode
, &inode_alloc_bh
, 1);
620 mutex_unlock(&inode_alloc_inode
->i_mutex
);
626 handle
= ocfs2_start_trans(osb
, OCFS2_DELETE_INODE_CREDITS
+
627 ocfs2_quota_trans_credits(inode
->i_sb
));
628 if (IS_ERR(handle
)) {
629 status
= PTR_ERR(handle
);
634 if (!(OCFS2_I(inode
)->ip_flags
& OCFS2_INODE_SKIP_ORPHAN_DIR
)) {
635 status
= ocfs2_orphan_del(osb
, handle
, orphan_dir_inode
, inode
,
643 /* set the inodes dtime */
644 status
= ocfs2_journal_access_di(handle
, INODE_CACHE(inode
), di_bh
,
645 OCFS2_JOURNAL_ACCESS_WRITE
);
651 di
->i_dtime
= cpu_to_le64(CURRENT_TIME
.tv_sec
);
652 di
->i_flags
&= cpu_to_le32(~(OCFS2_VALID_FL
| OCFS2_ORPHANED_FL
));
653 ocfs2_journal_dirty(handle
, di_bh
);
655 ocfs2_remove_from_cache(INODE_CACHE(inode
), di_bh
);
656 dquot_free_inode(inode
);
658 status
= ocfs2_free_dinode(handle
, inode_alloc_inode
,
664 ocfs2_commit_trans(osb
, handle
);
666 ocfs2_inode_unlock(inode_alloc_inode
, 1);
667 mutex_unlock(&inode_alloc_inode
->i_mutex
);
668 brelse(inode_alloc_bh
);
670 iput(inode_alloc_inode
);
676 * Serialize with orphan dir recovery. If the process doing
677 * recovery on this orphan dir does an iget() with the dir
678 * i_mutex held, we'll deadlock here. Instead we detect this
679 * and exit early - recovery will wipe this inode for us.
681 static int ocfs2_check_orphan_recovery_state(struct ocfs2_super
*osb
,
686 spin_lock(&osb
->osb_lock
);
687 if (ocfs2_node_map_test_bit(osb
, &osb
->osb_recovering_orphan_dirs
, slot
)) {
691 /* This signals to the orphan recovery process that it should
692 * wait for us to handle the wipe. */
693 osb
->osb_orphan_wipes
[slot
]++;
695 spin_unlock(&osb
->osb_lock
);
696 trace_ocfs2_check_orphan_recovery_state(slot
, ret
);
700 static void ocfs2_signal_wipe_completion(struct ocfs2_super
*osb
,
703 spin_lock(&osb
->osb_lock
);
704 osb
->osb_orphan_wipes
[slot
]--;
705 spin_unlock(&osb
->osb_lock
);
707 wake_up(&osb
->osb_wipe_event
);
710 static int ocfs2_wipe_inode(struct inode
*inode
,
711 struct buffer_head
*di_bh
)
713 int status
, orphaned_slot
= -1;
714 struct inode
*orphan_dir_inode
= NULL
;
715 struct buffer_head
*orphan_dir_bh
= NULL
;
716 struct ocfs2_super
*osb
= OCFS2_SB(inode
->i_sb
);
717 struct ocfs2_dinode
*di
= (struct ocfs2_dinode
*) di_bh
->b_data
;
719 if (!(OCFS2_I(inode
)->ip_flags
& OCFS2_INODE_SKIP_ORPHAN_DIR
)) {
720 orphaned_slot
= le16_to_cpu(di
->i_orphaned_slot
);
722 status
= ocfs2_check_orphan_recovery_state(osb
, orphaned_slot
);
726 orphan_dir_inode
= ocfs2_get_system_file_inode(osb
,
727 ORPHAN_DIR_SYSTEM_INODE
,
729 if (!orphan_dir_inode
) {
735 /* Lock the orphan dir. The lock will be held for the entire
736 * delete_inode operation. We do this now to avoid races with
737 * recovery completion on other nodes. */
738 mutex_lock(&orphan_dir_inode
->i_mutex
);
739 status
= ocfs2_inode_lock(orphan_dir_inode
, &orphan_dir_bh
, 1);
741 mutex_unlock(&orphan_dir_inode
->i_mutex
);
748 /* we do this while holding the orphan dir lock because we
749 * don't want recovery being run from another node to try an
750 * inode delete underneath us -- this will result in two nodes
751 * truncating the same file! */
752 status
= ocfs2_truncate_for_delete(osb
, inode
, di_bh
);
755 goto bail_unlock_dir
;
758 /* Remove any dir index tree */
759 if (S_ISDIR(inode
->i_mode
)) {
760 status
= ocfs2_dx_dir_truncate(inode
, di_bh
);
763 goto bail_unlock_dir
;
767 /*Free extended attribute resources associated with this inode.*/
768 status
= ocfs2_xattr_remove(inode
, di_bh
);
771 goto bail_unlock_dir
;
774 status
= ocfs2_remove_refcount_tree(inode
, di_bh
);
777 goto bail_unlock_dir
;
780 status
= ocfs2_remove_inode(inode
, di_bh
, orphan_dir_inode
,
786 if (OCFS2_I(inode
)->ip_flags
& OCFS2_INODE_SKIP_ORPHAN_DIR
)
789 ocfs2_inode_unlock(orphan_dir_inode
, 1);
790 mutex_unlock(&orphan_dir_inode
->i_mutex
);
791 brelse(orphan_dir_bh
);
793 iput(orphan_dir_inode
);
794 ocfs2_signal_wipe_completion(osb
, orphaned_slot
);
799 /* There is a series of simple checks that should be done before a
800 * trylock is even considered. Encapsulate those in this function. */
801 static int ocfs2_inode_is_valid_to_delete(struct inode
*inode
)
804 struct ocfs2_inode_info
*oi
= OCFS2_I(inode
);
805 struct ocfs2_super
*osb
= OCFS2_SB(inode
->i_sb
);
807 trace_ocfs2_inode_is_valid_to_delete(current
, osb
->dc_task
,
808 (unsigned long long)oi
->ip_blkno
,
811 /* We shouldn't be getting here for the root directory
813 if (inode
== osb
->root_inode
) {
814 mlog(ML_ERROR
, "Skipping delete of root inode.\n");
818 /* If we're coming from downconvert_thread we can't go into our own
819 * voting [hello, deadlock city!], so unforuntately we just
820 * have to skip deleting this guy. That's OK though because
821 * the node who's doing the actual deleting should handle it
823 if (current
== osb
->dc_task
)
826 spin_lock(&oi
->ip_lock
);
827 /* OCFS2 *never* deletes system files. This should technically
828 * never get here as system file inodes should always have a
829 * positive link count. */
830 if (oi
->ip_flags
& OCFS2_INODE_SYSTEM_FILE
) {
831 mlog(ML_ERROR
, "Skipping delete of system file %llu\n",
832 (unsigned long long)oi
->ip_blkno
);
836 /* If we have allowd wipe of this inode for another node, it
837 * will be marked here so we can safely skip it. Recovery will
838 * cleanup any inodes we might inadvertantly skip here. */
839 if (oi
->ip_flags
& OCFS2_INODE_SKIP_DELETE
)
844 spin_unlock(&oi
->ip_lock
);
849 /* Query the cluster to determine whether we should wipe an inode from
852 * Requires the inode to have the cluster lock. */
853 static int ocfs2_query_inode_wipe(struct inode
*inode
,
854 struct buffer_head
*di_bh
,
857 int status
= 0, reason
= 0;
858 struct ocfs2_inode_info
*oi
= OCFS2_I(inode
);
859 struct ocfs2_dinode
*di
;
863 trace_ocfs2_query_inode_wipe_begin((unsigned long long)oi
->ip_blkno
,
866 /* While we were waiting for the cluster lock in
867 * ocfs2_delete_inode, another node might have asked to delete
868 * the inode. Recheck our flags to catch this. */
869 if (!ocfs2_inode_is_valid_to_delete(inode
)) {
874 /* Now that we have an up to date inode, we can double check
879 /* Do some basic inode verification... */
880 di
= (struct ocfs2_dinode
*) di_bh
->b_data
;
881 if (!(di
->i_flags
& cpu_to_le32(OCFS2_ORPHANED_FL
)) &&
882 !(oi
->ip_flags
& OCFS2_INODE_SKIP_ORPHAN_DIR
)) {
884 * Inodes in the orphan dir must have ORPHANED_FL. The only
885 * inodes that come back out of the orphan dir are reflink
886 * targets. A reflink target may be moved out of the orphan
887 * dir between the time we scan the directory and the time we
888 * process it. This would lead to HAS_REFCOUNT_FL being set but
891 if (di
->i_dyn_features
& cpu_to_le16(OCFS2_HAS_REFCOUNT_FL
)) {
896 /* for lack of a better error? */
899 "Inode %llu (on-disk %llu) not orphaned! "
900 "Disk flags 0x%x, inode flags 0x%x\n",
901 (unsigned long long)oi
->ip_blkno
,
902 (unsigned long long)le64_to_cpu(di
->i_blkno
),
903 le32_to_cpu(di
->i_flags
), oi
->ip_flags
);
907 /* has someone already deleted us?! baaad... */
915 * This is how ocfs2 determines whether an inode is still live
916 * within the cluster. Every node takes a shared read lock on
917 * the inode open lock in ocfs2_read_locked_inode(). When we
918 * get to ->delete_inode(), each node tries to convert it's
919 * lock to an exclusive. Trylocks are serialized by the inode
920 * meta data lock. If the upconvert suceeds, we know the inode
921 * is no longer live and can be deleted.
923 * Though we call this with the meta data lock held, the
924 * trylock keeps us from ABBA deadlock.
926 status
= ocfs2_try_open_lock(inode
, 1);
927 if (status
== -EAGAIN
) {
938 trace_ocfs2_query_inode_wipe_succ(le16_to_cpu(di
->i_orphaned_slot
));
941 trace_ocfs2_query_inode_wipe_end(status
, reason
);
945 /* Support function for ocfs2_delete_inode. Will help us keep the
946 * inode data in a consistent state for clear_inode. Always truncates
947 * pages, optionally sync's them first. */
948 static void ocfs2_cleanup_delete_inode(struct inode
*inode
,
951 trace_ocfs2_cleanup_delete_inode(
952 (unsigned long long)OCFS2_I(inode
)->ip_blkno
, sync_data
);
954 write_inode_now(inode
, 1);
955 truncate_inode_pages(&inode
->i_data
, 0);
958 static void ocfs2_delete_inode(struct inode
*inode
)
962 struct buffer_head
*di_bh
= NULL
;
964 trace_ocfs2_delete_inode(inode
->i_ino
,
965 (unsigned long long)OCFS2_I(inode
)->ip_blkno
,
966 is_bad_inode(inode
));
968 /* When we fail in read_inode() we mark inode as bad. The second test
969 * catches the case when inode allocation fails before allocating
970 * a block for inode. */
971 if (is_bad_inode(inode
) || !OCFS2_I(inode
)->ip_blkno
)
974 dquot_initialize(inode
);
976 if (!ocfs2_inode_is_valid_to_delete(inode
)) {
977 /* It's probably not necessary to truncate_inode_pages
978 * here but we do it for safety anyway (it will most
979 * likely be a no-op anyway) */
980 ocfs2_cleanup_delete_inode(inode
, 0);
984 /* We want to block signals in delete_inode as the lock and
985 * messaging paths may return us -ERESTARTSYS. Which would
986 * cause us to exit early, resulting in inodes being orphaned
988 ocfs2_block_signals(&oldset
);
991 * Synchronize us against ocfs2_get_dentry. We take this in
992 * shared mode so that all nodes can still concurrently
995 status
= ocfs2_nfs_sync_lock(OCFS2_SB(inode
->i_sb
), 0);
997 mlog(ML_ERROR
, "getting nfs sync lock(PR) failed %d\n", status
);
998 ocfs2_cleanup_delete_inode(inode
, 0);
1001 /* Lock down the inode. This gives us an up to date view of
1002 * it's metadata (for verification), and allows us to
1003 * serialize delete_inode on multiple nodes.
1005 * Even though we might be doing a truncate, we don't take the
1006 * allocation lock here as it won't be needed - nobody will
1007 * have the file open.
1009 status
= ocfs2_inode_lock(inode
, &di_bh
, 1);
1011 if (status
!= -ENOENT
)
1013 ocfs2_cleanup_delete_inode(inode
, 0);
1014 goto bail_unlock_nfs_sync
;
1017 /* Query the cluster. This will be the final decision made
1018 * before we go ahead and wipe the inode. */
1019 status
= ocfs2_query_inode_wipe(inode
, di_bh
, &wipe
);
1020 if (!wipe
|| status
< 0) {
1021 /* Error and remote inode busy both mean we won't be
1022 * removing the inode, so they take almost the same
1027 /* Someone in the cluster has disallowed a wipe of
1028 * this inode, or it was never completely
1029 * orphaned. Write out the pages and exit now. */
1030 ocfs2_cleanup_delete_inode(inode
, 1);
1031 goto bail_unlock_inode
;
1034 ocfs2_cleanup_delete_inode(inode
, 0);
1036 status
= ocfs2_wipe_inode(inode
, di_bh
);
1038 if (status
!= -EDEADLK
)
1040 goto bail_unlock_inode
;
1044 * Mark the inode as successfully deleted.
1046 * This is important for ocfs2_clear_inode() as it will check
1047 * this flag and skip any checkpointing work
1049 * ocfs2_stuff_meta_lvb() also uses this flag to invalidate
1050 * the LVB for other nodes.
1052 OCFS2_I(inode
)->ip_flags
|= OCFS2_INODE_DELETED
;
1055 ocfs2_inode_unlock(inode
, 1);
1058 bail_unlock_nfs_sync
:
1059 ocfs2_nfs_sync_unlock(OCFS2_SB(inode
->i_sb
), 0);
1062 ocfs2_unblock_signals(&oldset
);
1067 static void ocfs2_clear_inode(struct inode
*inode
)
1070 struct ocfs2_inode_info
*oi
= OCFS2_I(inode
);
1072 end_writeback(inode
);
1073 trace_ocfs2_clear_inode((unsigned long long)oi
->ip_blkno
,
1076 mlog_bug_on_msg(OCFS2_SB(inode
->i_sb
) == NULL
,
1077 "Inode=%lu\n", inode
->i_ino
);
1081 /* To preven remote deletes we hold open lock before, now it
1082 * is time to unlock PR and EX open locks. */
1083 ocfs2_open_unlock(inode
);
1085 /* Do these before all the other work so that we don't bounce
1086 * the downconvert thread while waiting to destroy the locks. */
1087 ocfs2_mark_lockres_freeing(&oi
->ip_rw_lockres
);
1088 ocfs2_mark_lockres_freeing(&oi
->ip_inode_lockres
);
1089 ocfs2_mark_lockres_freeing(&oi
->ip_open_lockres
);
1091 ocfs2_resv_discard(&OCFS2_SB(inode
->i_sb
)->osb_la_resmap
,
1092 &oi
->ip_la_data_resv
);
1093 ocfs2_resv_init_once(&oi
->ip_la_data_resv
);
1095 /* We very well may get a clear_inode before all an inodes
1096 * metadata has hit disk. Of course, we can't drop any cluster
1097 * locks until the journal has finished with it. The only
1098 * exception here are successfully wiped inodes - their
1099 * metadata can now be considered to be part of the system
1100 * inodes from which it came. */
1101 if (!(OCFS2_I(inode
)->ip_flags
& OCFS2_INODE_DELETED
))
1102 ocfs2_checkpoint_inode(inode
);
1104 mlog_bug_on_msg(!list_empty(&oi
->ip_io_markers
),
1105 "Clear inode of %llu, inode has io markers\n",
1106 (unsigned long long)oi
->ip_blkno
);
1108 ocfs2_extent_map_trunc(inode
, 0);
1110 status
= ocfs2_drop_inode_locks(inode
);
1114 ocfs2_lock_res_free(&oi
->ip_rw_lockres
);
1115 ocfs2_lock_res_free(&oi
->ip_inode_lockres
);
1116 ocfs2_lock_res_free(&oi
->ip_open_lockres
);
1118 ocfs2_metadata_cache_exit(INODE_CACHE(inode
));
1120 mlog_bug_on_msg(INODE_CACHE(inode
)->ci_num_cached
,
1121 "Clear inode of %llu, inode has %u cache items\n",
1122 (unsigned long long)oi
->ip_blkno
,
1123 INODE_CACHE(inode
)->ci_num_cached
);
1125 mlog_bug_on_msg(!(INODE_CACHE(inode
)->ci_flags
& OCFS2_CACHE_FL_INLINE
),
1126 "Clear inode of %llu, inode has a bad flag\n",
1127 (unsigned long long)oi
->ip_blkno
);
1129 mlog_bug_on_msg(spin_is_locked(&oi
->ip_lock
),
1130 "Clear inode of %llu, inode is locked\n",
1131 (unsigned long long)oi
->ip_blkno
);
1133 mlog_bug_on_msg(!mutex_trylock(&oi
->ip_io_mutex
),
1134 "Clear inode of %llu, io_mutex is locked\n",
1135 (unsigned long long)oi
->ip_blkno
);
1136 mutex_unlock(&oi
->ip_io_mutex
);
1139 * down_trylock() returns 0, down_write_trylock() returns 1
1142 mlog_bug_on_msg(!down_write_trylock(&oi
->ip_alloc_sem
),
1143 "Clear inode of %llu, alloc_sem is locked\n",
1144 (unsigned long long)oi
->ip_blkno
);
1145 up_write(&oi
->ip_alloc_sem
);
1147 mlog_bug_on_msg(oi
->ip_open_count
,
1148 "Clear inode of %llu has open count %d\n",
1149 (unsigned long long)oi
->ip_blkno
, oi
->ip_open_count
);
1151 /* Clear all other flags. */
1153 oi
->ip_dir_start_lookup
= 0;
1154 oi
->ip_blkno
= 0ULL;
1157 * ip_jinode is used to track txns against this inode. We ensure that
1158 * the journal is flushed before journal shutdown. Thus it is safe to
1159 * have inodes get cleaned up after journal shutdown.
1161 jbd2_journal_release_jbd_inode(OCFS2_SB(inode
->i_sb
)->journal
->j_journal
,
1165 void ocfs2_evict_inode(struct inode
*inode
)
1167 if (!inode
->i_nlink
||
1168 (OCFS2_I(inode
)->ip_flags
& OCFS2_INODE_MAYBE_ORPHANED
)) {
1169 ocfs2_delete_inode(inode
);
1171 truncate_inode_pages(&inode
->i_data
, 0);
1173 ocfs2_clear_inode(inode
);
1176 /* Called under inode_lock, with no more references on the
1177 * struct inode, so it's safe here to check the flags field
1178 * and to manipulate i_nlink without any other locks. */
1179 int ocfs2_drop_inode(struct inode
*inode
)
1181 struct ocfs2_inode_info
*oi
= OCFS2_I(inode
);
1184 trace_ocfs2_drop_inode((unsigned long long)oi
->ip_blkno
,
1185 inode
->i_nlink
, oi
->ip_flags
);
1187 if (oi
->ip_flags
& OCFS2_INODE_MAYBE_ORPHANED
)
1190 res
= generic_drop_inode(inode
);
1196 * This is called from our getattr.
1198 int ocfs2_inode_revalidate(struct dentry
*dentry
)
1200 struct inode
*inode
= dentry
->d_inode
;
1203 trace_ocfs2_inode_revalidate(inode
,
1204 inode
? (unsigned long long)OCFS2_I(inode
)->ip_blkno
: 0ULL,
1205 inode
? (unsigned long long)OCFS2_I(inode
)->ip_flags
: 0);
1212 spin_lock(&OCFS2_I(inode
)->ip_lock
);
1213 if (OCFS2_I(inode
)->ip_flags
& OCFS2_INODE_DELETED
) {
1214 spin_unlock(&OCFS2_I(inode
)->ip_lock
);
1218 spin_unlock(&OCFS2_I(inode
)->ip_lock
);
1220 /* Let ocfs2_inode_lock do the work of updating our struct
1222 status
= ocfs2_inode_lock(inode
, NULL
, 0);
1224 if (status
!= -ENOENT
)
1228 ocfs2_inode_unlock(inode
, 0);
1234 * Updates a disk inode from a
1236 * Only takes ip_lock.
1238 int ocfs2_mark_inode_dirty(handle_t
*handle
,
1239 struct inode
*inode
,
1240 struct buffer_head
*bh
)
1243 struct ocfs2_dinode
*fe
= (struct ocfs2_dinode
*) bh
->b_data
;
1245 trace_ocfs2_mark_inode_dirty((unsigned long long)OCFS2_I(inode
)->ip_blkno
);
1247 status
= ocfs2_journal_access_di(handle
, INODE_CACHE(inode
), bh
,
1248 OCFS2_JOURNAL_ACCESS_WRITE
);
1254 spin_lock(&OCFS2_I(inode
)->ip_lock
);
1255 fe
->i_clusters
= cpu_to_le32(OCFS2_I(inode
)->ip_clusters
);
1256 ocfs2_get_inode_flags(OCFS2_I(inode
));
1257 fe
->i_attr
= cpu_to_le32(OCFS2_I(inode
)->ip_attr
);
1258 fe
->i_dyn_features
= cpu_to_le16(OCFS2_I(inode
)->ip_dyn_features
);
1259 spin_unlock(&OCFS2_I(inode
)->ip_lock
);
1261 fe
->i_size
= cpu_to_le64(i_size_read(inode
));
1262 ocfs2_set_links_count(fe
, inode
->i_nlink
);
1263 fe
->i_uid
= cpu_to_le32(inode
->i_uid
);
1264 fe
->i_gid
= cpu_to_le32(inode
->i_gid
);
1265 fe
->i_mode
= cpu_to_le16(inode
->i_mode
);
1266 fe
->i_atime
= cpu_to_le64(inode
->i_atime
.tv_sec
);
1267 fe
->i_atime_nsec
= cpu_to_le32(inode
->i_atime
.tv_nsec
);
1268 fe
->i_ctime
= cpu_to_le64(inode
->i_ctime
.tv_sec
);
1269 fe
->i_ctime_nsec
= cpu_to_le32(inode
->i_ctime
.tv_nsec
);
1270 fe
->i_mtime
= cpu_to_le64(inode
->i_mtime
.tv_sec
);
1271 fe
->i_mtime_nsec
= cpu_to_le32(inode
->i_mtime
.tv_nsec
);
1273 ocfs2_journal_dirty(handle
, bh
);
1280 * Updates a struct inode from a disk inode.
1281 * does no i/o, only takes ip_lock.
1283 void ocfs2_refresh_inode(struct inode
*inode
,
1284 struct ocfs2_dinode
*fe
)
1286 spin_lock(&OCFS2_I(inode
)->ip_lock
);
1288 OCFS2_I(inode
)->ip_clusters
= le32_to_cpu(fe
->i_clusters
);
1289 OCFS2_I(inode
)->ip_attr
= le32_to_cpu(fe
->i_attr
);
1290 OCFS2_I(inode
)->ip_dyn_features
= le16_to_cpu(fe
->i_dyn_features
);
1291 ocfs2_set_inode_flags(inode
);
1292 i_size_write(inode
, le64_to_cpu(fe
->i_size
));
1293 inode
->i_nlink
= ocfs2_read_links_count(fe
);
1294 inode
->i_uid
= le32_to_cpu(fe
->i_uid
);
1295 inode
->i_gid
= le32_to_cpu(fe
->i_gid
);
1296 inode
->i_mode
= le16_to_cpu(fe
->i_mode
);
1297 if (S_ISLNK(inode
->i_mode
) && le32_to_cpu(fe
->i_clusters
) == 0)
1298 inode
->i_blocks
= 0;
1300 inode
->i_blocks
= ocfs2_inode_sector_count(inode
);
1301 inode
->i_atime
.tv_sec
= le64_to_cpu(fe
->i_atime
);
1302 inode
->i_atime
.tv_nsec
= le32_to_cpu(fe
->i_atime_nsec
);
1303 inode
->i_mtime
.tv_sec
= le64_to_cpu(fe
->i_mtime
);
1304 inode
->i_mtime
.tv_nsec
= le32_to_cpu(fe
->i_mtime_nsec
);
1305 inode
->i_ctime
.tv_sec
= le64_to_cpu(fe
->i_ctime
);
1306 inode
->i_ctime
.tv_nsec
= le32_to_cpu(fe
->i_ctime_nsec
);
1308 spin_unlock(&OCFS2_I(inode
)->ip_lock
);
1311 int ocfs2_validate_inode_block(struct super_block
*sb
,
1312 struct buffer_head
*bh
)
1315 struct ocfs2_dinode
*di
= (struct ocfs2_dinode
*)bh
->b_data
;
1317 trace_ocfs2_validate_inode_block((unsigned long long)bh
->b_blocknr
);
1319 BUG_ON(!buffer_uptodate(bh
));
1322 * If the ecc fails, we return the error but otherwise
1323 * leave the filesystem running. We know any error is
1324 * local to this block.
1326 rc
= ocfs2_validate_meta_ecc(sb
, bh
->b_data
, &di
->i_check
);
1328 mlog(ML_ERROR
, "Checksum failed for dinode %llu\n",
1329 (unsigned long long)bh
->b_blocknr
);
1334 * Errors after here are fatal.
1339 if (!OCFS2_IS_VALID_DINODE(di
)) {
1340 ocfs2_error(sb
, "Invalid dinode #%llu: signature = %.*s\n",
1341 (unsigned long long)bh
->b_blocknr
, 7,
1346 if (le64_to_cpu(di
->i_blkno
) != bh
->b_blocknr
) {
1347 ocfs2_error(sb
, "Invalid dinode #%llu: i_blkno is %llu\n",
1348 (unsigned long long)bh
->b_blocknr
,
1349 (unsigned long long)le64_to_cpu(di
->i_blkno
));
1353 if (!(di
->i_flags
& cpu_to_le32(OCFS2_VALID_FL
))) {
1355 "Invalid dinode #%llu: OCFS2_VALID_FL not set\n",
1356 (unsigned long long)bh
->b_blocknr
);
1360 if (le32_to_cpu(di
->i_fs_generation
) !=
1361 OCFS2_SB(sb
)->fs_generation
) {
1363 "Invalid dinode #%llu: fs_generation is %u\n",
1364 (unsigned long long)bh
->b_blocknr
,
1365 le32_to_cpu(di
->i_fs_generation
));
1375 int ocfs2_read_inode_block_full(struct inode
*inode
, struct buffer_head
**bh
,
1379 struct buffer_head
*tmp
= *bh
;
1381 rc
= ocfs2_read_blocks(INODE_CACHE(inode
), OCFS2_I(inode
)->ip_blkno
,
1382 1, &tmp
, flags
, ocfs2_validate_inode_block
);
1384 /* If ocfs2_read_blocks() got us a new bh, pass it up. */
1391 int ocfs2_read_inode_block(struct inode
*inode
, struct buffer_head
**bh
)
1393 return ocfs2_read_inode_block_full(inode
, bh
, 0);
1397 static u64
ocfs2_inode_cache_owner(struct ocfs2_caching_info
*ci
)
1399 struct ocfs2_inode_info
*oi
= cache_info_to_inode(ci
);
1401 return oi
->ip_blkno
;
1404 static struct super_block
*ocfs2_inode_cache_get_super(struct ocfs2_caching_info
*ci
)
1406 struct ocfs2_inode_info
*oi
= cache_info_to_inode(ci
);
1408 return oi
->vfs_inode
.i_sb
;
1411 static void ocfs2_inode_cache_lock(struct ocfs2_caching_info
*ci
)
1413 struct ocfs2_inode_info
*oi
= cache_info_to_inode(ci
);
1415 spin_lock(&oi
->ip_lock
);
1418 static void ocfs2_inode_cache_unlock(struct ocfs2_caching_info
*ci
)
1420 struct ocfs2_inode_info
*oi
= cache_info_to_inode(ci
);
1422 spin_unlock(&oi
->ip_lock
);
1425 static void ocfs2_inode_cache_io_lock(struct ocfs2_caching_info
*ci
)
1427 struct ocfs2_inode_info
*oi
= cache_info_to_inode(ci
);
1429 mutex_lock(&oi
->ip_io_mutex
);
1432 static void ocfs2_inode_cache_io_unlock(struct ocfs2_caching_info
*ci
)
1434 struct ocfs2_inode_info
*oi
= cache_info_to_inode(ci
);
1436 mutex_unlock(&oi
->ip_io_mutex
);
1439 const struct ocfs2_caching_operations ocfs2_inode_caching_ops
= {
1440 .co_owner
= ocfs2_inode_cache_owner
,
1441 .co_get_super
= ocfs2_inode_cache_get_super
,
1442 .co_cache_lock
= ocfs2_inode_cache_lock
,
1443 .co_cache_unlock
= ocfs2_inode_cache_unlock
,
1444 .co_io_lock
= ocfs2_inode_cache_io_lock
,
1445 .co_io_unlock
= ocfs2_inode_cache_io_unlock
,