2 * Copyright (C) International Business Machines Corp., 2000-2004
3 * Portions Copyright (C) Christoph Hellwig, 2001-2002
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include <linux/module.h>
22 #include <linux/parser.h>
23 #include <linux/completion.h>
24 #include <linux/vfs.h>
25 #include <linux/mount.h>
26 #include <linux/moduleparam.h>
27 #include <linux/kthread.h>
28 #include <linux/posix_acl.h>
29 #include <linux/buffer_head.h>
30 #include <asm/uaccess.h>
31 #include <linux/seq_file.h>
33 #include "jfs_incore.h"
34 #include "jfs_filsys.h"
35 #include "jfs_inode.h"
36 #include "jfs_metapage.h"
37 #include "jfs_superblock.h"
41 #include "jfs_debug.h"
43 MODULE_DESCRIPTION("The Journaled Filesystem (JFS)");
44 MODULE_AUTHOR("Steve Best/Dave Kleikamp/Barry Arndt, IBM");
45 MODULE_LICENSE("GPL");
47 static struct kmem_cache
* jfs_inode_cachep
;
49 static struct super_operations jfs_super_operations
;
50 static struct export_operations jfs_export_operations
;
51 static struct file_system_type jfs_fs_type
;
53 #define MAX_COMMIT_THREADS 64
54 static int commit_threads
= 0;
55 module_param(commit_threads
, int, 0);
56 MODULE_PARM_DESC(commit_threads
, "Number of commit threads");
58 static struct task_struct
*jfsCommitThread
[MAX_COMMIT_THREADS
];
59 struct task_struct
*jfsIOthread
;
60 struct task_struct
*jfsSyncThread
;
62 #ifdef CONFIG_JFS_DEBUG
63 int jfsloglevel
= JFS_LOGLEVEL_WARN
;
64 module_param(jfsloglevel
, int, 0644);
65 MODULE_PARM_DESC(jfsloglevel
, "Specify JFS loglevel (0, 1 or 2)");
68 static void jfs_handle_error(struct super_block
*sb
)
70 struct jfs_sb_info
*sbi
= JFS_SBI(sb
);
72 if (sb
->s_flags
& MS_RDONLY
)
75 updateSuper(sb
, FM_DIRTY
);
77 if (sbi
->flag
& JFS_ERR_PANIC
)
78 panic("JFS (device %s): panic forced after error\n",
80 else if (sbi
->flag
& JFS_ERR_REMOUNT_RO
) {
81 jfs_err("ERROR: (device %s): remounting filesystem "
84 sb
->s_flags
|= MS_RDONLY
;
87 /* nothing is done for continue beyond marking the superblock dirty */
90 void jfs_error(struct super_block
*sb
, const char * function
, ...)
92 static char error_buf
[256];
95 va_start(args
, function
);
96 vsprintf(error_buf
, function
, args
);
99 printk(KERN_ERR
"ERROR: (device %s): %s\n", sb
->s_id
, error_buf
);
101 jfs_handle_error(sb
);
104 static struct inode
*jfs_alloc_inode(struct super_block
*sb
)
106 struct jfs_inode_info
*jfs_inode
;
108 jfs_inode
= kmem_cache_alloc(jfs_inode_cachep
, GFP_NOFS
);
111 return &jfs_inode
->vfs_inode
;
114 static void jfs_destroy_inode(struct inode
*inode
)
116 struct jfs_inode_info
*ji
= JFS_IP(inode
);
118 BUG_ON(!list_empty(&ji
->anon_inode_list
));
120 spin_lock_irq(&ji
->ag_lock
);
121 if (ji
->active_ag
!= -1) {
122 struct bmap
*bmap
= JFS_SBI(inode
->i_sb
)->bmap
;
123 atomic_dec(&bmap
->db_active
[ji
->active_ag
]);
126 spin_unlock_irq(&ji
->ag_lock
);
128 #ifdef CONFIG_JFS_POSIX_ACL
129 if (ji
->i_acl
!= JFS_ACL_NOT_CACHED
) {
130 posix_acl_release(ji
->i_acl
);
131 ji
->i_acl
= JFS_ACL_NOT_CACHED
;
133 if (ji
->i_default_acl
!= JFS_ACL_NOT_CACHED
) {
134 posix_acl_release(ji
->i_default_acl
);
135 ji
->i_default_acl
= JFS_ACL_NOT_CACHED
;
139 kmem_cache_free(jfs_inode_cachep
, ji
);
142 static int jfs_statfs(struct dentry
*dentry
, struct kstatfs
*buf
)
144 struct jfs_sb_info
*sbi
= JFS_SBI(dentry
->d_sb
);
146 struct inomap
*imap
= JFS_IP(sbi
->ipimap
)->i_imap
;
148 jfs_info("In jfs_statfs");
149 buf
->f_type
= JFS_SUPER_MAGIC
;
150 buf
->f_bsize
= sbi
->bsize
;
151 buf
->f_blocks
= sbi
->bmap
->db_mapsize
;
152 buf
->f_bfree
= sbi
->bmap
->db_nfree
;
153 buf
->f_bavail
= sbi
->bmap
->db_nfree
;
155 * If we really return the number of allocated & free inodes, some
156 * applications will fail because they won't see enough free inodes.
157 * We'll try to calculate some guess as to how may inodes we can
160 * buf->f_files = atomic_read(&imap->im_numinos);
161 * buf->f_ffree = atomic_read(&imap->im_numfree);
163 maxinodes
= min((s64
) atomic_read(&imap
->im_numinos
) +
164 ((sbi
->bmap
->db_nfree
>> imap
->im_l2nbperiext
)
165 << L2INOSPEREXT
), (s64
) 0xffffffffLL
);
166 buf
->f_files
= maxinodes
;
167 buf
->f_ffree
= maxinodes
- (atomic_read(&imap
->im_numinos
) -
168 atomic_read(&imap
->im_numfree
));
170 buf
->f_namelen
= JFS_NAME_MAX
;
174 static void jfs_put_super(struct super_block
*sb
)
176 struct jfs_sb_info
*sbi
= JFS_SBI(sb
);
179 jfs_info("In jfs_put_super");
182 jfs_err("jfs_umount failed with return code %d", rc
);
184 unload_nls(sbi
->nls_tab
);
187 truncate_inode_pages(sbi
->direct_inode
->i_mapping
, 0);
188 iput(sbi
->direct_inode
);
189 sbi
->direct_inode
= NULL
;
195 Opt_integrity
, Opt_nointegrity
, Opt_iocharset
, Opt_resize
,
196 Opt_resize_nosize
, Opt_errors
, Opt_ignore
, Opt_err
, Opt_quota
,
197 Opt_usrquota
, Opt_grpquota
, Opt_uid
, Opt_gid
, Opt_umask
200 static match_table_t tokens
= {
201 {Opt_integrity
, "integrity"},
202 {Opt_nointegrity
, "nointegrity"},
203 {Opt_iocharset
, "iocharset=%s"},
204 {Opt_resize
, "resize=%u"},
205 {Opt_resize_nosize
, "resize"},
206 {Opt_errors
, "errors=%s"},
207 {Opt_ignore
, "noquota"},
208 {Opt_ignore
, "quota"},
209 {Opt_usrquota
, "usrquota"},
210 {Opt_grpquota
, "grpquota"},
213 {Opt_umask
, "umask=%u"},
217 static int parse_options(char *options
, struct super_block
*sb
, s64
*newLVSize
,
220 void *nls_map
= (void *)-1; /* -1: no change; NULL: none */
222 struct jfs_sb_info
*sbi
= JFS_SBI(sb
);
229 while ((p
= strsep(&options
, ",")) != NULL
) {
230 substring_t args
[MAX_OPT_ARGS
];
235 token
= match_token(p
, tokens
, args
);
238 *flag
&= ~JFS_NOINTEGRITY
;
240 case Opt_nointegrity
:
241 *flag
|= JFS_NOINTEGRITY
;
244 /* Silently ignore the quota options */
245 /* Don't do anything ;-) */
248 if (nls_map
&& nls_map
!= (void *) -1)
250 if (!strcmp(args
[0].from
, "none"))
253 nls_map
= load_nls(args
[0].from
);
256 "JFS: charset not found\n");
263 char *resize
= args
[0].from
;
264 *newLVSize
= simple_strtoull(resize
, &resize
, 0);
267 case Opt_resize_nosize
:
269 *newLVSize
= sb
->s_bdev
->bd_inode
->i_size
>>
270 sb
->s_blocksize_bits
;
273 "JFS: Cannot determine volume size\n");
278 char *errors
= args
[0].from
;
279 if (!errors
|| !*errors
)
281 if (!strcmp(errors
, "continue")) {
282 *flag
&= ~JFS_ERR_REMOUNT_RO
;
283 *flag
&= ~JFS_ERR_PANIC
;
284 *flag
|= JFS_ERR_CONTINUE
;
285 } else if (!strcmp(errors
, "remount-ro")) {
286 *flag
&= ~JFS_ERR_CONTINUE
;
287 *flag
&= ~JFS_ERR_PANIC
;
288 *flag
|= JFS_ERR_REMOUNT_RO
;
289 } else if (!strcmp(errors
, "panic")) {
290 *flag
&= ~JFS_ERR_CONTINUE
;
291 *flag
&= ~JFS_ERR_REMOUNT_RO
;
292 *flag
|= JFS_ERR_PANIC
;
295 "JFS: %s is an invalid error handler\n",
305 *flag
|= JFS_USRQUOTA
;
308 *flag
|= JFS_GRPQUOTA
;
315 "JFS: quota operations not supported\n");
320 char *uid
= args
[0].from
;
321 sbi
->uid
= simple_strtoul(uid
, &uid
, 0);
326 char *gid
= args
[0].from
;
327 sbi
->gid
= simple_strtoul(gid
, &gid
, 0);
332 char *umask
= args
[0].from
;
333 sbi
->umask
= simple_strtoul(umask
, &umask
, 8);
334 if (sbi
->umask
& ~0777) {
336 "JFS: Invalid value of umask\n");
342 printk("jfs: Unrecognized mount option \"%s\" "
343 " or missing value\n", p
);
348 if (nls_map
!= (void *) -1) {
349 /* Discard old (if remount) */
351 unload_nls(sbi
->nls_tab
);
352 sbi
->nls_tab
= nls_map
;
357 if (nls_map
&& nls_map
!= (void *) -1)
362 static int jfs_remount(struct super_block
*sb
, int *flags
, char *data
)
366 int flag
= JFS_SBI(sb
)->flag
;
368 if (!parse_options(data
, sb
, &newLVSize
, &flag
)) {
372 if (sb
->s_flags
& MS_RDONLY
) {
374 "JFS: resize requires volume to be mounted read-write\n");
377 rc
= jfs_extendfs(sb
, newLVSize
, 0);
382 if ((sb
->s_flags
& MS_RDONLY
) && !(*flags
& MS_RDONLY
)) {
384 * Invalidate any previously read metadata. fsck may have
385 * changed the on-disk data since we mounted r/o
387 truncate_inode_pages(JFS_SBI(sb
)->direct_inode
->i_mapping
, 0);
389 JFS_SBI(sb
)->flag
= flag
;
390 return jfs_mount_rw(sb
, 1);
392 if ((!(sb
->s_flags
& MS_RDONLY
)) && (*flags
& MS_RDONLY
)) {
393 rc
= jfs_umount_rw(sb
);
394 JFS_SBI(sb
)->flag
= flag
;
397 if ((JFS_SBI(sb
)->flag
& JFS_NOINTEGRITY
) != (flag
& JFS_NOINTEGRITY
))
398 if (!(sb
->s_flags
& MS_RDONLY
)) {
399 rc
= jfs_umount_rw(sb
);
402 JFS_SBI(sb
)->flag
= flag
;
403 return jfs_mount_rw(sb
, 1);
405 JFS_SBI(sb
)->flag
= flag
;
410 static int jfs_fill_super(struct super_block
*sb
, void *data
, int silent
)
412 struct jfs_sb_info
*sbi
;
418 jfs_info("In jfs_read_super: s_flags=0x%lx", sb
->s_flags
);
420 if (!new_valid_dev(sb
->s_bdev
->bd_dev
))
423 sbi
= kzalloc(sizeof (struct jfs_sb_info
), GFP_KERNEL
);
428 sbi
->uid
= sbi
->gid
= sbi
->umask
= -1;
430 /* initialize the mount flag and determine the default error handler */
431 flag
= JFS_ERR_REMOUNT_RO
;
433 if (!parse_options((char *) data
, sb
, &newLVSize
, &flag
)) {
439 #ifdef CONFIG_JFS_POSIX_ACL
440 sb
->s_flags
|= MS_POSIXACL
;
444 printk(KERN_ERR
"resize option for remount only\n");
449 * Initialize blocksize to 4K.
451 sb_set_blocksize(sb
, PSIZE
);
454 * Set method vectors.
456 sb
->s_op
= &jfs_super_operations
;
457 sb
->s_export_op
= &jfs_export_operations
;
460 * Initialize direct-mapping inode/address-space
462 inode
= new_inode(sb
);
467 inode
->i_size
= sb
->s_bdev
->bd_inode
->i_size
;
468 inode
->i_mapping
->a_ops
= &jfs_metapage_aops
;
469 insert_inode_hash(inode
);
470 mapping_set_gfp_mask(inode
->i_mapping
, GFP_NOFS
);
472 sbi
->direct_inode
= inode
;
477 jfs_err("jfs_mount failed w/return code = %d", rc
);
479 goto out_mount_failed
;
481 if (sb
->s_flags
& MS_RDONLY
)
484 rc
= jfs_mount_rw(sb
, 0);
487 jfs_err("jfs_mount_rw failed, return code = %d",
494 sb
->s_magic
= JFS_SUPER_MAGIC
;
496 inode
= iget(sb
, ROOT_I
);
497 if (!inode
|| is_bad_inode(inode
))
499 sb
->s_root
= d_alloc_root(inode
);
503 if (sbi
->mntflag
& JFS_OS2
)
504 sb
->s_root
->d_op
= &jfs_ci_dentry_operations
;
506 /* logical blocks are represented by 40 bits in pxd_t, etc. */
507 sb
->s_maxbytes
= ((u64
) sb
->s_blocksize
) << 40;
508 #if BITS_PER_LONG == 32
510 * Page cache is indexed by long.
511 * I would use MAX_LFS_FILESIZE, but it's only half as big
513 sb
->s_maxbytes
= min(((u64
) PAGE_CACHE_SIZE
<< 32) - 1, sb
->s_maxbytes
);
519 jfs_err("jfs_read_super: get root inode failed");
526 jfs_err("jfs_umount failed with return code %d", rc
);
529 filemap_write_and_wait(sbi
->direct_inode
->i_mapping
);
530 truncate_inode_pages(sbi
->direct_inode
->i_mapping
, 0);
531 make_bad_inode(sbi
->direct_inode
);
532 iput(sbi
->direct_inode
);
533 sbi
->direct_inode
= NULL
;
536 unload_nls(sbi
->nls_tab
);
541 static void jfs_write_super_lockfs(struct super_block
*sb
)
543 struct jfs_sb_info
*sbi
= JFS_SBI(sb
);
544 struct jfs_log
*log
= sbi
->log
;
546 if (!(sb
->s_flags
& MS_RDONLY
)) {
549 updateSuper(sb
, FM_CLEAN
);
553 static void jfs_unlockfs(struct super_block
*sb
)
555 struct jfs_sb_info
*sbi
= JFS_SBI(sb
);
556 struct jfs_log
*log
= sbi
->log
;
559 if (!(sb
->s_flags
& MS_RDONLY
)) {
560 updateSuper(sb
, FM_MOUNT
);
561 if ((rc
= lmLogInit(log
)))
562 jfs_err("jfs_unlock failed with return code %d", rc
);
568 static int jfs_get_sb(struct file_system_type
*fs_type
,
569 int flags
, const char *dev_name
, void *data
, struct vfsmount
*mnt
)
571 return get_sb_bdev(fs_type
, flags
, dev_name
, data
, jfs_fill_super
,
575 static int jfs_sync_fs(struct super_block
*sb
, int wait
)
577 struct jfs_log
*log
= JFS_SBI(sb
)->log
;
579 /* log == NULL indicates read-only mount */
581 jfs_flush_journal(log
, wait
);
588 static int jfs_show_options(struct seq_file
*seq
, struct vfsmount
*vfs
)
590 struct jfs_sb_info
*sbi
= JFS_SBI(vfs
->mnt_sb
);
593 seq_printf(seq
, ",uid=%d", sbi
->uid
);
595 seq_printf(seq
, ",gid=%d", sbi
->gid
);
596 if (sbi
->umask
!= -1)
597 seq_printf(seq
, ",umask=%03o", sbi
->umask
);
598 if (sbi
->flag
& JFS_NOINTEGRITY
)
599 seq_puts(seq
, ",nointegrity");
602 if (sbi
->flag
& JFS_USRQUOTA
)
603 seq_puts(seq
, ",usrquota");
605 if (sbi
->flag
& JFS_GRPQUOTA
)
606 seq_puts(seq
, ",grpquota");
614 /* Read data from quotafile - avoid pagecache and such because we cannot afford
615 * acquiring the locks... As quota files are never truncated and quota code
616 * itself serializes the operations (and noone else should touch the files)
617 * we don't have to be afraid of races */
618 static ssize_t
jfs_quota_read(struct super_block
*sb
, int type
, char *data
,
619 size_t len
, loff_t off
)
621 struct inode
*inode
= sb_dqopt(sb
)->files
[type
];
622 sector_t blk
= off
>> sb
->s_blocksize_bits
;
624 int offset
= off
& (sb
->s_blocksize
- 1);
627 struct buffer_head tmp_bh
;
628 struct buffer_head
*bh
;
629 loff_t i_size
= i_size_read(inode
);
633 if (off
+len
> i_size
)
637 tocopy
= sb
->s_blocksize
- offset
< toread
?
638 sb
->s_blocksize
- offset
: toread
;
641 tmp_bh
.b_size
= 1 << inode
->i_blkbits
;
642 err
= jfs_get_block(inode
, blk
, &tmp_bh
, 0);
645 if (!buffer_mapped(&tmp_bh
)) /* A hole? */
646 memset(data
, 0, tocopy
);
648 bh
= sb_bread(sb
, tmp_bh
.b_blocknr
);
651 memcpy(data
, bh
->b_data
+offset
, tocopy
);
662 /* Write to quotafile */
663 static ssize_t
jfs_quota_write(struct super_block
*sb
, int type
,
664 const char *data
, size_t len
, loff_t off
)
666 struct inode
*inode
= sb_dqopt(sb
)->files
[type
];
667 sector_t blk
= off
>> sb
->s_blocksize_bits
;
669 int offset
= off
& (sb
->s_blocksize
- 1);
671 size_t towrite
= len
;
672 struct buffer_head tmp_bh
;
673 struct buffer_head
*bh
;
675 mutex_lock(&inode
->i_mutex
);
676 while (towrite
> 0) {
677 tocopy
= sb
->s_blocksize
- offset
< towrite
?
678 sb
->s_blocksize
- offset
: towrite
;
681 tmp_bh
.b_size
= 1 << inode
->i_blkbits
;
682 err
= jfs_get_block(inode
, blk
, &tmp_bh
, 1);
685 if (offset
|| tocopy
!= sb
->s_blocksize
)
686 bh
= sb_bread(sb
, tmp_bh
.b_blocknr
);
688 bh
= sb_getblk(sb
, tmp_bh
.b_blocknr
);
694 memcpy(bh
->b_data
+offset
, data
, tocopy
);
695 flush_dcache_page(bh
->b_page
);
696 set_buffer_uptodate(bh
);
697 mark_buffer_dirty(bh
);
708 if (inode
->i_size
< off
+len
-towrite
)
709 i_size_write(inode
, off
+len
-towrite
);
711 inode
->i_mtime
= inode
->i_ctime
= CURRENT_TIME
;
712 mark_inode_dirty(inode
);
713 mutex_unlock(&inode
->i_mutex
);
714 return len
- towrite
;
719 static struct super_operations jfs_super_operations
= {
720 .alloc_inode
= jfs_alloc_inode
,
721 .destroy_inode
= jfs_destroy_inode
,
722 .read_inode
= jfs_read_inode
,
723 .dirty_inode
= jfs_dirty_inode
,
724 .write_inode
= jfs_write_inode
,
725 .delete_inode
= jfs_delete_inode
,
726 .put_super
= jfs_put_super
,
727 .sync_fs
= jfs_sync_fs
,
728 .write_super_lockfs
= jfs_write_super_lockfs
,
729 .unlockfs
= jfs_unlockfs
,
730 .statfs
= jfs_statfs
,
731 .remount_fs
= jfs_remount
,
732 .show_options
= jfs_show_options
,
734 .quota_read
= jfs_quota_read
,
735 .quota_write
= jfs_quota_write
,
739 static struct export_operations jfs_export_operations
= {
740 .get_parent
= jfs_get_parent
,
743 static struct file_system_type jfs_fs_type
= {
744 .owner
= THIS_MODULE
,
746 .get_sb
= jfs_get_sb
,
747 .kill_sb
= kill_block_super
,
748 .fs_flags
= FS_REQUIRES_DEV
,
751 static void init_once(void *foo
, struct kmem_cache
* cachep
, unsigned long flags
)
753 struct jfs_inode_info
*jfs_ip
= (struct jfs_inode_info
*) foo
;
755 if ((flags
& (SLAB_CTOR_VERIFY
| SLAB_CTOR_CONSTRUCTOR
)) ==
756 SLAB_CTOR_CONSTRUCTOR
) {
757 memset(jfs_ip
, 0, sizeof(struct jfs_inode_info
));
758 INIT_LIST_HEAD(&jfs_ip
->anon_inode_list
);
759 init_rwsem(&jfs_ip
->rdwrlock
);
760 mutex_init(&jfs_ip
->commit_mutex
);
761 init_rwsem(&jfs_ip
->xattr_sem
);
762 spin_lock_init(&jfs_ip
->ag_lock
);
763 jfs_ip
->active_ag
= -1;
764 #ifdef CONFIG_JFS_POSIX_ACL
765 jfs_ip
->i_acl
= JFS_ACL_NOT_CACHED
;
766 jfs_ip
->i_default_acl
= JFS_ACL_NOT_CACHED
;
768 inode_init_once(&jfs_ip
->vfs_inode
);
772 static int __init
init_jfs_fs(void)
778 kmem_cache_create("jfs_ip", sizeof(struct jfs_inode_info
), 0,
779 SLAB_RECLAIM_ACCOUNT
|SLAB_MEM_SPREAD
,
781 if (jfs_inode_cachep
== NULL
)
785 * Metapage initialization
787 rc
= metapage_init();
789 jfs_err("metapage_init failed w/rc = %d", rc
);
794 * Transaction Manager initialization
798 jfs_err("txInit failed w/rc = %d", rc
);
803 * I/O completion thread (endio)
805 jfsIOthread
= kthread_run(jfsIOWait
, NULL
, "jfsIO");
806 if (IS_ERR(jfsIOthread
)) {
807 rc
= PTR_ERR(jfsIOthread
);
808 jfs_err("init_jfs_fs: fork failed w/rc = %d", rc
);
812 if (commit_threads
< 1)
813 commit_threads
= num_online_cpus();
814 if (commit_threads
> MAX_COMMIT_THREADS
)
815 commit_threads
= MAX_COMMIT_THREADS
;
817 for (i
= 0; i
< commit_threads
; i
++) {
818 jfsCommitThread
[i
] = kthread_run(jfs_lazycommit
, NULL
, "jfsCommit");
819 if (IS_ERR(jfsCommitThread
[i
])) {
820 rc
= PTR_ERR(jfsCommitThread
[i
]);
821 jfs_err("init_jfs_fs: fork failed w/rc = %d", rc
);
823 goto kill_committask
;
827 jfsSyncThread
= kthread_run(jfs_sync
, NULL
, "jfsSync");
828 if (IS_ERR(jfsSyncThread
)) {
829 rc
= PTR_ERR(jfsSyncThread
);
830 jfs_err("init_jfs_fs: fork failed w/rc = %d", rc
);
831 goto kill_committask
;
838 return register_filesystem(&jfs_fs_type
);
841 for (i
= 0; i
< commit_threads
; i
++)
842 kthread_stop(jfsCommitThread
[i
]);
843 kthread_stop(jfsIOthread
);
849 kmem_cache_destroy(jfs_inode_cachep
);
853 static void __exit
exit_jfs_fs(void)
857 jfs_info("exit_jfs_fs called");
862 kthread_stop(jfsIOthread
);
863 for (i
= 0; i
< commit_threads
; i
++)
864 kthread_stop(jfsCommitThread
[i
]);
865 kthread_stop(jfsSyncThread
);
869 unregister_filesystem(&jfs_fs_type
);
870 kmem_cache_destroy(jfs_inode_cachep
);
873 module_init(init_jfs_fs
)
874 module_exit(exit_jfs_fs
)