2 * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
14 * or the like. Any license provided herein, whether implied or
15 * otherwise, applies only to this software file. Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write the Free Software Foundation, Inc., 59
21 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
24 * Mountain View, CA 94043, or:
28 * For further information regarding this notice, see:
30 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
38 #include "xfs_trans.h"
42 #include "xfs_alloc.h"
43 #include "xfs_dmapi.h"
44 #include "xfs_quota.h"
45 #include "xfs_mount.h"
46 #include "xfs_alloc_btree.h"
47 #include "xfs_bmap_btree.h"
48 #include "xfs_ialloc_btree.h"
49 #include "xfs_btree.h"
50 #include "xfs_ialloc.h"
51 #include "xfs_attr_sf.h"
52 #include "xfs_dir_sf.h"
53 #include "xfs_dir2_sf.h"
54 #include "xfs_dinode.h"
55 #include "xfs_inode.h"
58 #include "xfs_rtalloc.h"
59 #include "xfs_error.h"
60 #include "xfs_itable.h"
66 #include "xfs_buf_item.h"
67 #include "xfs_utils.h"
68 #include "xfs_version.h"
69 #include "xfs_ioctl32.h"
71 #include <linux/namei.h>
72 #include <linux/init.h>
73 #include <linux/mount.h>
74 #include <linux/writeback.h>
76 STATIC
struct quotactl_ops linvfs_qops
;
77 STATIC
struct super_operations linvfs_sops
;
78 STATIC kmem_zone_t
*linvfs_inode_zone
;
80 STATIC
struct xfs_mount_args
*
82 struct super_block
*sb
)
84 struct xfs_mount_args
*args
;
86 args
= kmem_zalloc(sizeof(struct xfs_mount_args
), KM_SLEEP
);
87 args
->logbufs
= args
->logbufsize
= -1;
88 strncpy(args
->fsname
, sb
->s_id
, MAXNAMELEN
);
90 /* Copy the already-parsed mount(2) flags we're interested in */
91 if (sb
->s_flags
& MS_NOATIME
)
92 args
->flags
|= XFSMNT_NOATIME
;
93 if (sb
->s_flags
& MS_DIRSYNC
)
94 args
->flags
|= XFSMNT_DIRSYNC
;
95 if (sb
->s_flags
& MS_SYNCHRONOUS
)
96 args
->flags
|= XFSMNT_WSYNC
;
98 /* Default to 32 bit inodes on Linux all the time */
99 args
->flags
|= XFSMNT_32BITINODES
;
106 unsigned int blockshift
)
108 unsigned int pagefactor
= 1;
109 unsigned int bitshift
= BITS_PER_LONG
- 1;
111 /* Figure out maximum filesize, on Linux this can depend on
112 * the filesystem blocksize (on 32 bit platforms).
113 * __block_prepare_write does this in an [unsigned] long...
114 * page->index << (PAGE_CACHE_SHIFT - bbits)
115 * So, for page sized blocks (4K on 32 bit platforms),
116 * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is
117 * (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1)
118 * but for smaller blocksizes it is less (bbits = log2 bsize).
119 * Note1: get_block_t takes a long (implicit cast from above)
120 * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch
121 * can optionally convert the [unsigned] long from above into
122 * an [unsigned] long long.
125 #if BITS_PER_LONG == 32
126 # if defined(CONFIG_LBD)
127 ASSERT(sizeof(sector_t
) == 8);
128 pagefactor
= PAGE_CACHE_SIZE
;
129 bitshift
= BITS_PER_LONG
;
131 pagefactor
= PAGE_CACHE_SIZE
>> (PAGE_CACHE_SHIFT
- blockshift
);
135 return (((__uint64_t
)pagefactor
) << bitshift
) - 1;
138 STATIC __inline__
void
142 vnode_t
*vp
= LINVFS_GET_VP(inode
);
144 if (vp
->v_type
== VNON
) {
146 } else if (S_ISREG(inode
->i_mode
)) {
147 inode
->i_op
= &linvfs_file_inode_operations
;
148 inode
->i_fop
= &linvfs_file_operations
;
149 inode
->i_mapping
->a_ops
= &linvfs_aops
;
150 } else if (S_ISDIR(inode
->i_mode
)) {
151 inode
->i_op
= &linvfs_dir_inode_operations
;
152 inode
->i_fop
= &linvfs_dir_operations
;
153 } else if (S_ISLNK(inode
->i_mode
)) {
154 inode
->i_op
= &linvfs_symlink_inode_operations
;
156 inode
->i_mapping
->a_ops
= &linvfs_aops
;
158 inode
->i_op
= &linvfs_file_inode_operations
;
159 init_special_inode(inode
, inode
->i_mode
, inode
->i_rdev
);
163 STATIC __inline__
void
164 xfs_revalidate_inode(
169 struct inode
*inode
= LINVFS_GET_IP(vp
);
171 inode
->i_mode
= (ip
->i_d
.di_mode
& MODEMASK
) | VTTOIF(vp
->v_type
);
172 inode
->i_nlink
= ip
->i_d
.di_nlink
;
173 inode
->i_uid
= ip
->i_d
.di_uid
;
174 inode
->i_gid
= ip
->i_d
.di_gid
;
175 if (((1 << vp
->v_type
) & ((1<<VBLK
) | (1<<VCHR
))) == 0) {
178 xfs_dev_t dev
= ip
->i_df
.if_u2
.if_rdev
;
179 inode
->i_rdev
= MKDEV(sysv_major(dev
) & 0x1ff, sysv_minor(dev
));
181 inode
->i_blksize
= PAGE_CACHE_SIZE
;
182 inode
->i_generation
= ip
->i_d
.di_gen
;
183 i_size_write(inode
, ip
->i_d
.di_size
);
185 XFS_FSB_TO_BB(mp
, ip
->i_d
.di_nblocks
+ ip
->i_delayed_blks
);
186 inode
->i_atime
.tv_sec
= ip
->i_d
.di_atime
.t_sec
;
187 inode
->i_atime
.tv_nsec
= ip
->i_d
.di_atime
.t_nsec
;
188 inode
->i_mtime
.tv_sec
= ip
->i_d
.di_mtime
.t_sec
;
189 inode
->i_mtime
.tv_nsec
= ip
->i_d
.di_mtime
.t_nsec
;
190 inode
->i_ctime
.tv_sec
= ip
->i_d
.di_ctime
.t_sec
;
191 inode
->i_ctime
.tv_nsec
= ip
->i_d
.di_ctime
.t_nsec
;
192 if (ip
->i_d
.di_flags
& XFS_DIFLAG_IMMUTABLE
)
193 inode
->i_flags
|= S_IMMUTABLE
;
195 inode
->i_flags
&= ~S_IMMUTABLE
;
196 if (ip
->i_d
.di_flags
& XFS_DIFLAG_APPEND
)
197 inode
->i_flags
|= S_APPEND
;
199 inode
->i_flags
&= ~S_APPEND
;
200 if (ip
->i_d
.di_flags
& XFS_DIFLAG_SYNC
)
201 inode
->i_flags
|= S_SYNC
;
203 inode
->i_flags
&= ~S_SYNC
;
204 if (ip
->i_d
.di_flags
& XFS_DIFLAG_NOATIME
)
205 inode
->i_flags
|= S_NOATIME
;
207 inode
->i_flags
&= ~S_NOATIME
;
208 vp
->v_flag
&= ~VMODIFIED
;
212 xfs_initialize_vnode(
215 bhv_desc_t
*inode_bhv
,
218 xfs_inode_t
*ip
= XFS_BHVTOI(inode_bhv
);
219 struct inode
*inode
= LINVFS_GET_IP(vp
);
221 if (!inode_bhv
->bd_vobj
) {
222 vp
->v_vfsp
= bhvtovfs(bdp
);
223 bhv_desc_init(inode_bhv
, ip
, vp
, &xfs_vnodeops
);
224 bhv_insert(VN_BHV_HEAD(vp
), inode_bhv
);
228 * We need to set the ops vectors, and unlock the inode, but if
229 * we have been called during the new inode create process, it is
230 * too early to fill in the Linux inode. We will get called a
231 * second time once the inode is properly set up, and then we can
234 if (ip
->i_d
.di_mode
!= 0 && unlock
&& (inode
->i_state
& I_NEW
)) {
235 vp
->v_type
= IFTOVT(ip
->i_d
.di_mode
);
236 xfs_revalidate_inode(XFS_BHVTOM(bdp
), vp
, ip
);
237 xfs_set_inodeops(inode
);
239 ip
->i_flags
&= ~XFS_INEW
;
242 unlock_new_inode(inode
);
250 struct block_device
**bdevp
)
254 *bdevp
= open_bdev_excl(name
, 0, mp
);
255 if (IS_ERR(*bdevp
)) {
256 error
= PTR_ERR(*bdevp
);
257 printk("XFS: Invalid device [%s], error=%d\n", name
, error
);
265 struct block_device
*bdev
)
268 close_bdev_excl(bdev
);
272 STATIC
struct inode
*
274 struct super_block
*sb
)
278 vp
= (vnode_t
*)kmem_cache_alloc(linvfs_inode_zone
,
279 kmem_flags_convert(KM_SLEEP
));
282 return LINVFS_GET_IP(vp
);
286 linvfs_destroy_inode(
289 kmem_cache_free(linvfs_inode_zone
, LINVFS_GET_VP(inode
));
295 kmem_cache_t
*cachep
,
298 vnode_t
*vp
= (vnode_t
*)data
;
300 if ((flags
& (SLAB_CTOR_VERIFY
|SLAB_CTOR_CONSTRUCTOR
)) ==
301 SLAB_CTOR_CONSTRUCTOR
)
302 inode_init_once(LINVFS_GET_IP(vp
));
306 init_inodecache( void )
308 linvfs_inode_zone
= kmem_cache_create("linvfs_icache",
309 sizeof(vnode_t
), 0, SLAB_RECLAIM_ACCOUNT
,
311 if (linvfs_inode_zone
== NULL
)
317 destroy_inodecache( void )
319 if (kmem_cache_destroy(linvfs_inode_zone
))
320 printk(KERN_WARNING
"%s: cache still in use!\n", __FUNCTION__
);
324 * Attempt to flush the inode, this will actually fail
325 * if the inode is pinned, but we dirty the inode again
326 * at the point when it is unpinned after a log write,
327 * since this is when the inode itself becomes flushable.
334 vnode_t
*vp
= LINVFS_GET_VP(inode
);
335 int error
= 0, flags
= FLUSH_INODE
;
338 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
341 VOP_IFLUSH(vp
, flags
, error
);
342 if (error
== EAGAIN
) {
344 VOP_IFLUSH(vp
, flags
| FLUSH_LOG
, error
);
357 vnode_t
*vp
= LINVFS_GET_VP(inode
);
361 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
363 * Do all our cleanup, and remove this vnode.
371 * Enqueue a work item to be picked up by the vfs xfssyncd thread.
372 * Doing this has two advantages:
373 * - It saves on stack space, which is tight in certain situations
374 * - It can be used (with care) as a mechanism to avoid deadlocks.
375 * Flushing while allocating in a full filesystem requires both.
378 xfs_syncd_queue_work(
381 void (*syncer
)(vfs_t
*, void *))
383 vfs_sync_work_t
*work
;
385 work
= kmem_alloc(sizeof(struct vfs_sync_work
), KM_SLEEP
);
386 INIT_LIST_HEAD(&work
->w_list
);
387 work
->w_syncer
= syncer
;
390 spin_lock(&vfs
->vfs_sync_lock
);
391 list_add_tail(&work
->w_list
, &vfs
->vfs_sync_list
);
392 spin_unlock(&vfs
->vfs_sync_lock
);
393 wake_up_process(vfs
->vfs_sync_task
);
397 * Flush delayed allocate data, attempting to free up reserved space
398 * from existing allocations. At this point a new allocation attempt
399 * has failed with ENOSPC and we are in the process of scratching our
400 * heads, looking about for more room...
403 xfs_flush_inode_work(
407 filemap_flush(((struct inode
*)inode
)->i_mapping
);
408 iput((struct inode
*)inode
);
415 struct inode
*inode
= LINVFS_GET_IP(XFS_ITOV(ip
));
416 struct vfs
*vfs
= XFS_MTOVFS(ip
->i_mount
);
419 xfs_syncd_queue_work(vfs
, inode
, xfs_flush_inode_work
);
424 * This is the "bigger hammer" version of xfs_flush_inode_work...
425 * (IOW, "If at first you don't succeed, use a Bigger Hammer").
428 xfs_flush_device_work(
432 sync_blockdev(vfs
->vfs_super
->s_bdev
);
433 iput((struct inode
*)inode
);
440 struct inode
*inode
= LINVFS_GET_IP(XFS_ITOV(ip
));
441 struct vfs
*vfs
= XFS_MTOVFS(ip
->i_mount
);
444 xfs_syncd_queue_work(vfs
, inode
, xfs_flush_device_work
);
446 xfs_log_force(ip
->i_mount
, (xfs_lsn_t
)0, XFS_LOG_FORCE
|XFS_LOG_SYNC
);
449 #define SYNCD_FLAGS (SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR)
457 if (!(vfsp
->vfs_flag
& VFS_RDONLY
))
458 VFS_SYNC(vfsp
, SYNCD_FLAGS
, NULL
, error
);
459 vfsp
->vfs_sync_seq
++;
461 wake_up(&vfsp
->vfs_wait_single_sync_task
);
469 vfs_t
*vfsp
= (vfs_t
*) arg
;
470 struct list_head tmp
;
471 struct vfs_sync_work
*work
, *n
;
473 daemonize("xfssyncd");
475 vfsp
->vfs_sync_work
.w_vfs
= vfsp
;
476 vfsp
->vfs_sync_work
.w_syncer
= vfs_sync_worker
;
477 vfsp
->vfs_sync_task
= current
;
479 wake_up(&vfsp
->vfs_wait_sync_task
);
481 INIT_LIST_HEAD(&tmp
);
482 timeleft
= (xfs_syncd_centisecs
* HZ
) / 100;
484 set_current_state(TASK_INTERRUPTIBLE
);
485 timeleft
= schedule_timeout(timeleft
);
487 try_to_freeze(PF_FREEZE
);
488 if (vfsp
->vfs_flag
& VFS_UMOUNT
)
491 spin_lock(&vfsp
->vfs_sync_lock
);
493 * We can get woken by laptop mode, to do a sync -
494 * that's the (only!) case where the list would be
495 * empty with time remaining.
497 if (!timeleft
|| list_empty(&vfsp
->vfs_sync_list
)) {
499 timeleft
= (xfs_syncd_centisecs
* HZ
) / 100;
500 INIT_LIST_HEAD(&vfsp
->vfs_sync_work
.w_list
);
501 list_add_tail(&vfsp
->vfs_sync_work
.w_list
,
502 &vfsp
->vfs_sync_list
);
504 list_for_each_entry_safe(work
, n
, &vfsp
->vfs_sync_list
, w_list
)
505 list_move(&work
->w_list
, &tmp
);
506 spin_unlock(&vfsp
->vfs_sync_lock
);
508 list_for_each_entry_safe(work
, n
, &tmp
, w_list
) {
509 (*work
->w_syncer
)(vfsp
, work
->w_data
);
510 list_del(&work
->w_list
);
511 if (work
== &vfsp
->vfs_sync_work
)
513 kmem_free(work
, sizeof(struct vfs_sync_work
));
517 vfsp
->vfs_sync_task
= NULL
;
519 wake_up(&vfsp
->vfs_wait_sync_task
);
530 pid
= kernel_thread(xfssyncd
, (void *) vfsp
,
531 CLONE_VM
| CLONE_FS
| CLONE_FILES
);
534 wait_event(vfsp
->vfs_wait_sync_task
, vfsp
->vfs_sync_task
);
542 vfsp
->vfs_flag
|= VFS_UMOUNT
;
545 wake_up_process(vfsp
->vfs_sync_task
);
546 wait_event(vfsp
->vfs_wait_sync_task
, !vfsp
->vfs_sync_task
);
551 struct super_block
*sb
)
553 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
556 linvfs_stop_syncd(vfsp
);
557 VFS_SYNC(vfsp
, SYNC_ATTR
|SYNC_DELWRI
, NULL
, error
);
559 VFS_UNMOUNT(vfsp
, 0, NULL
, error
);
561 printk("XFS unmount got error %d\n", error
);
562 printk("%s: vfsp/0x%p left dangling!\n", __FUNCTION__
, vfsp
);
566 vfs_deallocate(vfsp
);
571 struct super_block
*sb
)
573 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
576 if (sb
->s_flags
& MS_RDONLY
) {
577 sb
->s_dirt
= 0; /* paranoia */
580 /* Push the log and superblock a little */
581 VFS_SYNC(vfsp
, SYNC_FSDATA
, NULL
, error
);
587 struct super_block
*sb
,
590 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
592 int flags
= SYNC_FSDATA
;
597 VFS_SYNC(vfsp
, flags
, NULL
, error
);
600 if (unlikely(laptop_mode
)) {
601 int prev_sync_seq
= vfsp
->vfs_sync_seq
;
604 * The disk must be active because we're syncing.
605 * We schedule xfssyncd now (now that the disk is
606 * active) instead of later (when it might not be).
608 wake_up_process(vfsp
->vfs_sync_task
);
610 * We have to wait for the sync iteration to complete.
611 * If we don't, the disk activity caused by the sync
612 * will come after the sync is completed, and that
613 * triggers another sync from laptop mode.
615 wait_event(vfsp
->vfs_wait_single_sync_task
,
616 vfsp
->vfs_sync_seq
!= prev_sync_seq
);
624 struct super_block
*sb
,
625 struct kstatfs
*statp
)
627 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
630 VFS_STATVFS(vfsp
, statp
, NULL
, error
);
636 struct super_block
*sb
,
640 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
641 struct xfs_mount_args
*args
= xfs_args_allocate(sb
);
644 VFS_PARSEARGS(vfsp
, options
, args
, 1, error
);
646 VFS_MNTUPDATE(vfsp
, flags
, args
, error
);
647 kmem_free(args
, sizeof(*args
));
653 struct super_block
*sb
)
655 VFS_FREEZE(LINVFS_GET_VFS(sb
));
661 struct vfsmount
*mnt
)
663 struct vfs
*vfsp
= LINVFS_GET_VFS(mnt
->mnt_sb
);
666 VFS_SHOWARGS(vfsp
, m
, error
);
672 struct super_block
*sb
,
673 struct fs_quota_stat
*fqs
)
675 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
678 VFS_QUOTACTL(vfsp
, Q_XGETQSTAT
, 0, (caddr_t
)fqs
, error
);
684 struct super_block
*sb
,
688 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
691 VFS_QUOTACTL(vfsp
, op
, 0, (caddr_t
)&flags
, error
);
697 struct super_block
*sb
,
700 struct fs_disk_quota
*fdq
)
702 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
705 getmode
= (type
== GRPQUOTA
) ? Q_XGETGQUOTA
: Q_XGETQUOTA
;
706 VFS_QUOTACTL(vfsp
, getmode
, id
, (caddr_t
)fdq
, error
);
712 struct super_block
*sb
,
715 struct fs_disk_quota
*fdq
)
717 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
720 setmode
= (type
== GRPQUOTA
) ? Q_XSETGQLIM
: Q_XSETQLIM
;
721 VFS_QUOTACTL(vfsp
, setmode
, id
, (caddr_t
)fdq
, error
);
727 struct super_block
*sb
,
732 struct vfs
*vfsp
= vfs_allocate();
733 struct xfs_mount_args
*args
= xfs_args_allocate(sb
);
734 struct kstatfs statvfs
;
737 vfsp
->vfs_super
= sb
;
738 LINVFS_SET_VFS(sb
, vfsp
);
739 if (sb
->s_flags
& MS_RDONLY
)
740 vfsp
->vfs_flag
|= VFS_RDONLY
;
741 bhv_insert_all_vfsops(vfsp
);
743 VFS_PARSEARGS(vfsp
, (char *)data
, args
, 0, error
);
745 bhv_remove_all_vfsops(vfsp
, 1);
749 sb_min_blocksize(sb
, BBSIZE
);
750 #ifdef CONFIG_XFS_EXPORT
751 sb
->s_export_op
= &linvfs_export_ops
;
753 sb
->s_qcop
= &linvfs_qops
;
754 sb
->s_op
= &linvfs_sops
;
756 VFS_MOUNT(vfsp
, args
, NULL
, error
);
758 bhv_remove_all_vfsops(vfsp
, 1);
762 VFS_STATVFS(vfsp
, &statvfs
, NULL
, error
);
767 sb
->s_magic
= statvfs
.f_type
;
768 sb
->s_blocksize
= statvfs
.f_bsize
;
769 sb
->s_blocksize_bits
= ffs(statvfs
.f_bsize
) - 1;
770 sb
->s_maxbytes
= xfs_max_file_offset(sb
->s_blocksize_bits
);
772 set_posix_acl_flag(sb
);
774 VFS_ROOT(vfsp
, &rootvp
, error
);
778 sb
->s_root
= d_alloc_root(LINVFS_GET_IP(rootvp
));
783 if (is_bad_inode(sb
->s_root
->d_inode
)) {
787 if ((error
= linvfs_start_syncd(vfsp
)))
789 vn_trace_exit(rootvp
, __FUNCTION__
, (inst_t
*)__return_address
);
791 kmem_free(args
, sizeof(*args
));
803 VFS_UNMOUNT(vfsp
, 0, NULL
, error2
);
806 vfs_deallocate(vfsp
);
807 kmem_free(args
, sizeof(*args
));
811 STATIC
struct super_block
*
813 struct file_system_type
*fs_type
,
815 const char *dev_name
,
818 return get_sb_bdev(fs_type
, flags
, dev_name
, data
, linvfs_fill_super
);
821 STATIC
struct super_operations linvfs_sops
= {
822 .alloc_inode
= linvfs_alloc_inode
,
823 .destroy_inode
= linvfs_destroy_inode
,
824 .write_inode
= linvfs_write_inode
,
825 .clear_inode
= linvfs_clear_inode
,
826 .put_super
= linvfs_put_super
,
827 .write_super
= linvfs_write_super
,
828 .sync_fs
= linvfs_sync_super
,
829 .write_super_lockfs
= linvfs_freeze_fs
,
830 .statfs
= linvfs_statfs
,
831 .remount_fs
= linvfs_remount
,
832 .show_options
= linvfs_show_options
,
835 STATIC
struct quotactl_ops linvfs_qops
= {
836 .get_xstate
= linvfs_getxstate
,
837 .set_xstate
= linvfs_setxstate
,
838 .get_xquota
= linvfs_getxquota
,
839 .set_xquota
= linvfs_setxquota
,
842 STATIC
struct file_system_type xfs_fs_type
= {
843 .owner
= THIS_MODULE
,
845 .get_sb
= linvfs_get_sb
,
846 .kill_sb
= kill_block_super
,
847 .fs_flags
= FS_REQUIRES_DEV
,
856 static char message
[] __initdata
= KERN_INFO \
857 XFS_VERSION_STRING
" with " XFS_BUILD_OPTIONS
" enabled\n";
862 xfs_physmem
= si
.totalram
;
866 error
= init_inodecache();
868 goto undo_inodecache
;
870 error
= pagebuf_init();
879 error
= register_filesystem(&xfs_fs_type
);
882 XFS_DM_INIT(&xfs_fs_type
);
889 destroy_inodecache();
899 XFS_DM_EXIT(&xfs_fs_type
);
900 unregister_filesystem(&xfs_fs_type
);
903 destroy_inodecache();
907 module_init(init_xfs_fs
);
908 module_exit(exit_xfs_fs
);
910 MODULE_AUTHOR("Silicon Graphics, Inc.");
911 MODULE_DESCRIPTION(XFS_VERSION_STRING
" with " XFS_BUILD_OPTIONS
" enabled");
912 MODULE_LICENSE("GPL");