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/suspend.h>
75 #include <linux/writeback.h>
77 STATIC
struct quotactl_ops linvfs_qops
;
78 STATIC
struct super_operations linvfs_sops
;
79 STATIC
struct export_operations linvfs_export_ops
;
80 STATIC kmem_zone_t
*linvfs_inode_zone
;
81 STATIC kmem_shaker_t xfs_inode_shaker
;
83 STATIC
struct xfs_mount_args
*
85 struct super_block
*sb
)
87 struct xfs_mount_args
*args
;
89 args
= kmem_zalloc(sizeof(struct xfs_mount_args
), KM_SLEEP
);
90 args
->logbufs
= args
->logbufsize
= -1;
91 strncpy(args
->fsname
, sb
->s_id
, MAXNAMELEN
);
93 /* Copy the already-parsed mount(2) flags we're interested in */
94 if (sb
->s_flags
& MS_NOATIME
)
95 args
->flags
|= XFSMNT_NOATIME
;
97 /* Default to 32 bit inodes on Linux all the time */
98 args
->flags
|= XFSMNT_32BITINODES
;
105 unsigned int blockshift
)
107 unsigned int pagefactor
= 1;
108 unsigned int bitshift
= BITS_PER_LONG
- 1;
110 /* Figure out maximum filesize, on Linux this can depend on
111 * the filesystem blocksize (on 32 bit platforms).
112 * __block_prepare_write does this in an [unsigned] long...
113 * page->index << (PAGE_CACHE_SHIFT - bbits)
114 * So, for page sized blocks (4K on 32 bit platforms),
115 * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is
116 * (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1)
117 * but for smaller blocksizes it is less (bbits = log2 bsize).
118 * Note1: get_block_t takes a long (implicit cast from above)
119 * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch
120 * can optionally convert the [unsigned] long from above into
121 * an [unsigned] long long.
124 #if BITS_PER_LONG == 32
125 # if defined(CONFIG_LBD)
126 ASSERT(sizeof(sector_t
) == 8);
127 pagefactor
= PAGE_CACHE_SIZE
;
128 bitshift
= BITS_PER_LONG
;
130 pagefactor
= PAGE_CACHE_SIZE
>> (PAGE_CACHE_SHIFT
- blockshift
);
134 return (((__uint64_t
)pagefactor
) << bitshift
) - 1;
137 STATIC __inline__
void
141 vnode_t
*vp
= LINVFS_GET_VP(inode
);
143 if (vp
->v_type
== VNON
) {
145 } else if (S_ISREG(inode
->i_mode
)) {
146 inode
->i_op
= &linvfs_file_inode_operations
;
147 inode
->i_fop
= &linvfs_file_operations
;
148 inode
->i_mapping
->a_ops
= &linvfs_aops
;
149 } else if (S_ISDIR(inode
->i_mode
)) {
150 inode
->i_op
= &linvfs_dir_inode_operations
;
151 inode
->i_fop
= &linvfs_dir_operations
;
152 } else if (S_ISLNK(inode
->i_mode
)) {
153 inode
->i_op
= &linvfs_symlink_inode_operations
;
155 inode
->i_mapping
->a_ops
= &linvfs_aops
;
157 inode
->i_op
= &linvfs_file_inode_operations
;
158 init_special_inode(inode
, inode
->i_mode
, inode
->i_rdev
);
162 STATIC __inline__
void
163 xfs_revalidate_inode(
168 struct inode
*inode
= LINVFS_GET_IP(vp
);
170 inode
->i_mode
= (ip
->i_d
.di_mode
& MODEMASK
) | VTTOIF(vp
->v_type
);
171 inode
->i_nlink
= ip
->i_d
.di_nlink
;
172 inode
->i_uid
= ip
->i_d
.di_uid
;
173 inode
->i_gid
= ip
->i_d
.di_gid
;
174 if (((1 << vp
->v_type
) & ((1<<VBLK
) | (1<<VCHR
))) == 0) {
177 xfs_dev_t dev
= ip
->i_df
.if_u2
.if_rdev
;
178 inode
->i_rdev
= MKDEV(sysv_major(dev
) & 0x1ff, sysv_minor(dev
));
180 inode
->i_blksize
= PAGE_CACHE_SIZE
;
181 inode
->i_generation
= ip
->i_d
.di_gen
;
182 i_size_write(inode
, ip
->i_d
.di_size
);
184 XFS_FSB_TO_BB(mp
, ip
->i_d
.di_nblocks
+ ip
->i_delayed_blks
);
185 inode
->i_atime
.tv_sec
= ip
->i_d
.di_atime
.t_sec
;
186 inode
->i_atime
.tv_nsec
= ip
->i_d
.di_atime
.t_nsec
;
187 inode
->i_mtime
.tv_sec
= ip
->i_d
.di_mtime
.t_sec
;
188 inode
->i_mtime
.tv_nsec
= ip
->i_d
.di_mtime
.t_nsec
;
189 inode
->i_ctime
.tv_sec
= ip
->i_d
.di_ctime
.t_sec
;
190 inode
->i_ctime
.tv_nsec
= ip
->i_d
.di_ctime
.t_nsec
;
191 if (ip
->i_d
.di_flags
& XFS_DIFLAG_IMMUTABLE
)
192 inode
->i_flags
|= S_IMMUTABLE
;
194 inode
->i_flags
&= ~S_IMMUTABLE
;
195 if (ip
->i_d
.di_flags
& XFS_DIFLAG_APPEND
)
196 inode
->i_flags
|= S_APPEND
;
198 inode
->i_flags
&= ~S_APPEND
;
199 if (ip
->i_d
.di_flags
& XFS_DIFLAG_SYNC
)
200 inode
->i_flags
|= S_SYNC
;
202 inode
->i_flags
&= ~S_SYNC
;
203 if (ip
->i_d
.di_flags
& XFS_DIFLAG_NOATIME
)
204 inode
->i_flags
|= S_NOATIME
;
206 inode
->i_flags
&= ~S_NOATIME
;
207 vp
->v_flag
&= ~VMODIFIED
;
211 xfs_initialize_vnode(
214 bhv_desc_t
*inode_bhv
,
217 xfs_inode_t
*ip
= XFS_BHVTOI(inode_bhv
);
218 struct inode
*inode
= LINVFS_GET_IP(vp
);
220 if (!inode_bhv
->bd_vobj
) {
221 vp
->v_vfsp
= bhvtovfs(bdp
);
222 bhv_desc_init(inode_bhv
, ip
, vp
, &xfs_vnodeops
);
223 bhv_insert(VN_BHV_HEAD(vp
), inode_bhv
);
227 * We need to set the ops vectors, and unlock the inode, but if
228 * we have been called during the new inode create process, it is
229 * too early to fill in the Linux inode. We will get called a
230 * second time once the inode is properly set up, and then we can
233 if (ip
->i_d
.di_mode
!= 0 && unlock
&& (inode
->i_state
& I_NEW
)) {
234 vp
->v_type
= IFTOVT(ip
->i_d
.di_mode
);
235 xfs_revalidate_inode(XFS_BHVTOM(bdp
), vp
, ip
);
236 xfs_set_inodeops(inode
);
237 unlock_new_inode(inode
);
245 struct block_device
**bdevp
)
249 *bdevp
= open_bdev_excl(name
, 0, mp
);
250 if (IS_ERR(*bdevp
)) {
251 error
= PTR_ERR(*bdevp
);
252 printk("XFS: Invalid device [%s], error=%d\n", name
, error
);
260 struct block_device
*bdev
)
263 close_bdev_excl(bdev
);
267 STATIC
struct inode
*
269 struct super_block
*sb
)
273 vp
= (vnode_t
*)kmem_cache_alloc(linvfs_inode_zone
,
274 kmem_flags_convert(KM_SLEEP
));
277 return LINVFS_GET_IP(vp
);
281 linvfs_destroy_inode(
284 kmem_cache_free(linvfs_inode_zone
, LINVFS_GET_VP(inode
));
290 unsigned int gfp_mask
)
294 pages
= kmem_zone_shrink(linvfs_inode_zone
);
295 pages
+= kmem_zone_shrink(xfs_inode_zone
);
302 kmem_cache_t
*cachep
,
305 vnode_t
*vp
= (vnode_t
*)data
;
307 if ((flags
& (SLAB_CTOR_VERIFY
|SLAB_CTOR_CONSTRUCTOR
)) ==
308 SLAB_CTOR_CONSTRUCTOR
)
309 inode_init_once(LINVFS_GET_IP(vp
));
313 init_inodecache( void )
315 linvfs_inode_zone
= kmem_cache_create("linvfs_icache",
316 sizeof(vnode_t
), 0, SLAB_RECLAIM_ACCOUNT
,
318 if (linvfs_inode_zone
== NULL
)
324 destroy_inodecache( void )
326 if (kmem_cache_destroy(linvfs_inode_zone
))
327 printk(KERN_WARNING
"%s: cache still in use!\n", __FUNCTION__
);
331 * Attempt to flush the inode, this will actually fail
332 * if the inode is pinned, but we dirty the inode again
333 * at the point when it is unpinned after a log write,
334 * since this is when the inode itself becomes flushable.
341 vnode_t
*vp
= LINVFS_GET_VP(inode
);
342 int error
= 0, flags
= FLUSH_INODE
;
345 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
348 VOP_IFLUSH(vp
, flags
, error
);
358 vnode_t
*vp
= LINVFS_GET_VP(inode
);
362 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
364 * Do all our cleanup, and remove this vnode.
372 * Enqueue a work item to be picked up by the vfs xfssyncd thread.
373 * Doing this has two advantages:
374 * - It saves on stack space, which is tight in certain situations
375 * - It can be used (with care) as a mechanism to avoid deadlocks.
376 * Flushing while allocating in a full filesystem requires both.
379 xfs_syncd_queue_work(
382 void (*syncer
)(vfs_t
*, void *))
384 vfs_sync_work_t
*work
;
386 work
= kmem_alloc(sizeof(struct vfs_sync_work
), KM_SLEEP
);
387 INIT_LIST_HEAD(&work
->w_list
);
388 work
->w_syncer
= syncer
;
391 spin_lock(&vfs
->vfs_sync_lock
);
392 list_add_tail(&work
->w_list
, &vfs
->vfs_sync_list
);
393 spin_unlock(&vfs
->vfs_sync_lock
);
394 wake_up_process(vfs
->vfs_sync_task
);
398 * Flush delayed allocate data, attempting to free up reserved space
399 * from existing allocations. At this point a new allocation attempt
400 * has failed with ENOSPC and we are in the process of scratching our
401 * heads, looking about for more room...
404 xfs_flush_inode_work(
408 filemap_flush(((struct inode
*)inode
)->i_mapping
);
409 iput((struct inode
*)inode
);
416 struct inode
*inode
= LINVFS_GET_IP(XFS_ITOV(ip
));
417 struct vfs
*vfs
= XFS_MTOVFS(ip
->i_mount
);
420 xfs_syncd_queue_work(vfs
, inode
, xfs_flush_inode_work
);
425 * This is the "bigger hammer" version of xfs_flush_inode_work...
426 * (IOW, "If at first you don't succeed, use a Bigger Hammer").
429 xfs_flush_device_work(
433 sync_blockdev(vfs
->vfs_super
->s_bdev
);
434 iput((struct inode
*)inode
);
441 struct inode
*inode
= LINVFS_GET_IP(XFS_ITOV(ip
));
442 struct vfs
*vfs
= XFS_MTOVFS(ip
->i_mount
);
445 xfs_syncd_queue_work(vfs
, inode
, xfs_flush_device_work
);
447 xfs_log_force(ip
->i_mount
, (xfs_lsn_t
)0, XFS_LOG_FORCE
|XFS_LOG_SYNC
);
450 #define SYNCD_FLAGS (SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR)
458 if (!(vfsp
->vfs_flag
& VFS_RDONLY
))
459 VFS_SYNC(vfsp
, SYNCD_FLAGS
, NULL
, error
);
460 vfsp
->vfs_sync_seq
++;
462 wake_up(&vfsp
->vfs_wait_single_sync_task
);
470 vfs_t
*vfsp
= (vfs_t
*) arg
;
471 struct list_head tmp
;
472 struct vfs_sync_work
*work
, *n
;
474 daemonize("xfssyncd");
476 vfsp
->vfs_sync_work
.w_vfs
= vfsp
;
477 vfsp
->vfs_sync_work
.w_syncer
= vfs_sync_worker
;
478 vfsp
->vfs_sync_task
= current
;
480 wake_up(&vfsp
->vfs_wait_sync_task
);
482 INIT_LIST_HEAD(&tmp
);
483 timeleft
= (xfs_syncd_centisecs
* HZ
) / 100;
485 set_current_state(TASK_INTERRUPTIBLE
);
486 timeleft
= schedule_timeout(timeleft
);
488 if (current
->flags
& PF_FREEZE
)
489 refrigerator(PF_FREEZE
);
490 if (vfsp
->vfs_flag
& VFS_UMOUNT
)
493 spin_lock(&vfsp
->vfs_sync_lock
);
495 * We can get woken by laptop mode, to do a sync -
496 * that's the (only!) case where the list would be
497 * empty with time remaining.
499 if (!timeleft
|| list_empty(&vfsp
->vfs_sync_list
)) {
501 timeleft
= (xfs_syncd_centisecs
* HZ
) / 100;
502 INIT_LIST_HEAD(&vfsp
->vfs_sync_work
.w_list
);
503 list_add_tail(&vfsp
->vfs_sync_work
.w_list
,
504 &vfsp
->vfs_sync_list
);
506 list_for_each_entry_safe(work
, n
, &vfsp
->vfs_sync_list
, w_list
)
507 list_move(&work
->w_list
, &tmp
);
508 spin_unlock(&vfsp
->vfs_sync_lock
);
510 list_for_each_entry_safe(work
, n
, &tmp
, w_list
) {
511 (*work
->w_syncer
)(vfsp
, work
->w_data
);
512 list_del(&work
->w_list
);
513 if (work
== &vfsp
->vfs_sync_work
)
515 kmem_free(work
, sizeof(struct vfs_sync_work
));
519 vfsp
->vfs_sync_task
= NULL
;
521 wake_up(&vfsp
->vfs_wait_sync_task
);
532 pid
= kernel_thread(xfssyncd
, (void *) vfsp
,
533 CLONE_VM
| CLONE_FS
| CLONE_FILES
);
536 wait_event(vfsp
->vfs_wait_sync_task
, vfsp
->vfs_sync_task
);
544 vfsp
->vfs_flag
|= VFS_UMOUNT
;
547 wake_up_process(vfsp
->vfs_sync_task
);
548 wait_event(vfsp
->vfs_wait_sync_task
, !vfsp
->vfs_sync_task
);
553 struct super_block
*sb
)
555 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
558 linvfs_stop_syncd(vfsp
);
559 VFS_SYNC(vfsp
, SYNC_ATTR
|SYNC_DELWRI
, NULL
, error
);
561 VFS_UNMOUNT(vfsp
, 0, NULL
, error
);
563 printk("XFS unmount got error %d\n", error
);
564 printk("%s: vfsp/0x%p left dangling!\n", __FUNCTION__
, vfsp
);
568 vfs_deallocate(vfsp
);
573 struct super_block
*sb
)
575 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
578 if (sb
->s_flags
& MS_RDONLY
) {
579 sb
->s_dirt
= 0; /* paranoia */
582 /* Push the log and superblock a little */
583 VFS_SYNC(vfsp
, SYNC_FSDATA
, NULL
, error
);
589 struct super_block
*sb
,
592 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
594 int flags
= SYNC_FSDATA
;
599 VFS_SYNC(vfsp
, flags
, NULL
, error
);
602 if (unlikely(laptop_mode
)) {
603 int prev_sync_seq
= vfsp
->vfs_sync_seq
;
606 * The disk must be active because we're syncing.
607 * We schedule xfssyncd now (now that the disk is
608 * active) instead of later (when it might not be).
610 wake_up_process(vfsp
->vfs_sync_task
);
612 * We have to wait for the sync iteration to complete.
613 * If we don't, the disk activity caused by the sync
614 * will come after the sync is completed, and that
615 * triggers another sync from laptop mode.
617 wait_event(vfsp
->vfs_wait_single_sync_task
,
618 vfsp
->vfs_sync_seq
!= prev_sync_seq
);
626 struct super_block
*sb
,
627 struct kstatfs
*statp
)
629 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
632 VFS_STATVFS(vfsp
, statp
, NULL
, error
);
638 struct super_block
*sb
,
642 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
643 struct xfs_mount_args
*args
= xfs_args_allocate(sb
);
646 VFS_PARSEARGS(vfsp
, options
, args
, 1, error
);
648 VFS_MNTUPDATE(vfsp
, flags
, args
, error
);
649 kmem_free(args
, sizeof(*args
));
655 struct super_block
*sb
)
657 VFS_FREEZE(LINVFS_GET_VFS(sb
));
660 STATIC
struct dentry
*
662 struct dentry
*child
)
666 struct dentry
*parent
;
667 struct dentry dotdot
;
669 dotdot
.d_name
.name
= "..";
670 dotdot
.d_name
.len
= 2;
671 dotdot
.d_inode
= NULL
;
674 vp
= LINVFS_GET_VP(child
->d_inode
);
675 VOP_LOOKUP(vp
, &dotdot
, &cvp
, 0, NULL
, NULL
, error
);
677 return ERR_PTR(-error
);
679 parent
= d_alloc_anon(LINVFS_GET_IP(cvp
));
680 if (unlikely(!parent
)) {
682 return ERR_PTR(-ENOMEM
);
687 STATIC
struct dentry
*
689 struct super_block
*sb
,
694 struct dentry
*result
;
696 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
699 xfid
.fid_len
= sizeof(xfs_fid2_t
) - sizeof(xfid
.fid_len
);
701 xfid
.fid_gen
= ((__u32
*)data
)[1];
702 xfid
.fid_ino
= ((__u32
*)data
)[0];
704 VFS_VGET(vfsp
, &vp
, (fid_t
*)&xfid
, error
);
705 if (error
|| vp
== NULL
)
706 return ERR_PTR(-ESTALE
) ;
708 inode
= LINVFS_GET_IP(vp
);
709 result
= d_alloc_anon(inode
);
712 return ERR_PTR(-ENOMEM
);
720 struct vfsmount
*mnt
)
722 struct vfs
*vfsp
= LINVFS_GET_VFS(mnt
->mnt_sb
);
725 VFS_SHOWARGS(vfsp
, m
, error
);
731 struct super_block
*sb
,
732 struct fs_quota_stat
*fqs
)
734 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
737 VFS_QUOTACTL(vfsp
, Q_XGETQSTAT
, 0, (caddr_t
)fqs
, error
);
743 struct super_block
*sb
,
747 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
750 VFS_QUOTACTL(vfsp
, op
, 0, (caddr_t
)&flags
, error
);
756 struct super_block
*sb
,
759 struct fs_disk_quota
*fdq
)
761 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
764 getmode
= (type
== GRPQUOTA
) ? Q_XGETGQUOTA
: Q_XGETQUOTA
;
765 VFS_QUOTACTL(vfsp
, getmode
, id
, (caddr_t
)fdq
, error
);
771 struct super_block
*sb
,
774 struct fs_disk_quota
*fdq
)
776 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
779 setmode
= (type
== GRPQUOTA
) ? Q_XSETGQLIM
: Q_XSETQLIM
;
780 VFS_QUOTACTL(vfsp
, setmode
, id
, (caddr_t
)fdq
, error
);
786 struct super_block
*sb
,
791 struct vfs
*vfsp
= vfs_allocate();
792 struct xfs_mount_args
*args
= xfs_args_allocate(sb
);
793 struct kstatfs statvfs
;
796 vfsp
->vfs_super
= sb
;
797 LINVFS_SET_VFS(sb
, vfsp
);
798 if (sb
->s_flags
& MS_RDONLY
)
799 vfsp
->vfs_flag
|= VFS_RDONLY
;
800 bhv_insert_all_vfsops(vfsp
);
802 VFS_PARSEARGS(vfsp
, (char *)data
, args
, 0, error
);
804 bhv_remove_all_vfsops(vfsp
, 1);
808 sb_min_blocksize(sb
, BBSIZE
);
809 sb
->s_export_op
= &linvfs_export_ops
;
810 sb
->s_qcop
= &linvfs_qops
;
811 sb
->s_op
= &linvfs_sops
;
813 VFS_MOUNT(vfsp
, args
, NULL
, error
);
815 bhv_remove_all_vfsops(vfsp
, 1);
819 VFS_STATVFS(vfsp
, &statvfs
, NULL
, error
);
824 sb
->s_magic
= statvfs
.f_type
;
825 sb
->s_blocksize
= statvfs
.f_bsize
;
826 sb
->s_blocksize_bits
= ffs(statvfs
.f_bsize
) - 1;
827 sb
->s_maxbytes
= xfs_max_file_offset(sb
->s_blocksize_bits
);
828 set_posix_acl_flag(sb
);
830 VFS_ROOT(vfsp
, &rootvp
, error
);
834 sb
->s_root
= d_alloc_root(LINVFS_GET_IP(rootvp
));
839 if (is_bad_inode(sb
->s_root
->d_inode
)) {
843 if ((error
= linvfs_start_syncd(vfsp
)))
845 vn_trace_exit(rootvp
, __FUNCTION__
, (inst_t
*)__return_address
);
847 kmem_free(args
, sizeof(*args
));
859 VFS_UNMOUNT(vfsp
, 0, NULL
, error2
);
862 vfs_deallocate(vfsp
);
863 kmem_free(args
, sizeof(*args
));
867 STATIC
struct super_block
*
869 struct file_system_type
*fs_type
,
871 const char *dev_name
,
874 return get_sb_bdev(fs_type
, flags
, dev_name
, data
, linvfs_fill_super
);
878 STATIC
struct export_operations linvfs_export_ops
= {
879 .get_parent
= linvfs_get_parent
,
880 .get_dentry
= linvfs_get_dentry
,
883 STATIC
struct super_operations linvfs_sops
= {
884 .alloc_inode
= linvfs_alloc_inode
,
885 .destroy_inode
= linvfs_destroy_inode
,
886 .write_inode
= linvfs_write_inode
,
887 .clear_inode
= linvfs_clear_inode
,
888 .put_super
= linvfs_put_super
,
889 .write_super
= linvfs_write_super
,
890 .sync_fs
= linvfs_sync_super
,
891 .write_super_lockfs
= linvfs_freeze_fs
,
892 .statfs
= linvfs_statfs
,
893 .remount_fs
= linvfs_remount
,
894 .show_options
= linvfs_show_options
,
897 STATIC
struct quotactl_ops linvfs_qops
= {
898 .get_xstate
= linvfs_getxstate
,
899 .set_xstate
= linvfs_setxstate
,
900 .get_xquota
= linvfs_getxquota
,
901 .set_xquota
= linvfs_setxquota
,
904 STATIC
struct file_system_type xfs_fs_type
= {
905 .owner
= THIS_MODULE
,
907 .get_sb
= linvfs_get_sb
,
908 .kill_sb
= kill_block_super
,
909 .fs_flags
= FS_REQUIRES_DEV
,
918 static char message
[] __initdata
= KERN_INFO \
919 XFS_VERSION_STRING
" with " XFS_BUILD_OPTIONS
" enabled\n";
924 xfs_physmem
= si
.totalram
;
928 error
= init_inodecache();
930 goto undo_inodecache
;
932 error
= pagebuf_init();
941 xfs_inode_shaker
= kmem_shake_register(xfs_inode_shake
);
942 if (!xfs_inode_shaker
) {
947 error
= xfs_ioctl32_init();
951 error
= register_filesystem(&xfs_fs_type
);
954 XFS_DM_INIT(&xfs_fs_type
);
961 kmem_shake_deregister(xfs_inode_shaker
);
967 destroy_inodecache();
977 XFS_DM_EXIT(&xfs_fs_type
);
978 unregister_filesystem(&xfs_fs_type
);
980 kmem_shake_deregister(xfs_inode_shaker
);
983 destroy_inodecache();
987 module_init(init_xfs_fs
);
988 module_exit(exit_xfs_fs
);
990 MODULE_AUTHOR("Silicon Graphics, Inc.");
991 MODULE_DESCRIPTION(XFS_VERSION_STRING
" with " XFS_BUILD_OPTIONS
" enabled");
992 MODULE_LICENSE("GPL");