2 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "xfs_trans.h"
28 #include "xfs_alloc.h"
29 #include "xfs_dmapi.h"
30 #include "xfs_quota.h"
31 #include "xfs_mount.h"
32 #include "xfs_bmap_btree.h"
33 #include "xfs_alloc_btree.h"
34 #include "xfs_ialloc_btree.h"
35 #include "xfs_dir_sf.h"
36 #include "xfs_dir2_sf.h"
37 #include "xfs_attr_sf.h"
38 #include "xfs_dinode.h"
39 #include "xfs_inode.h"
40 #include "xfs_btree.h"
41 #include "xfs_ialloc.h"
43 #include "xfs_rtalloc.h"
44 #include "xfs_error.h"
45 #include "xfs_itable.h"
51 #include "xfs_buf_item.h"
52 #include "xfs_utils.h"
53 #include "xfs_version.h"
55 #include <linux/namei.h>
56 #include <linux/init.h>
57 #include <linux/mount.h>
58 #include <linux/mempool.h>
59 #include <linux/writeback.h>
60 #include <linux/kthread.h>
62 STATIC
struct quotactl_ops linvfs_qops
;
63 STATIC
struct super_operations linvfs_sops
;
64 STATIC kmem_zone_t
*xfs_vnode_zone
;
65 STATIC kmem_zone_t
*xfs_ioend_zone
;
66 mempool_t
*xfs_ioend_pool
;
68 STATIC
struct xfs_mount_args
*
70 struct super_block
*sb
)
72 struct xfs_mount_args
*args
;
74 args
= kmem_zalloc(sizeof(struct xfs_mount_args
), KM_SLEEP
);
75 args
->logbufs
= args
->logbufsize
= -1;
76 strncpy(args
->fsname
, sb
->s_id
, MAXNAMELEN
);
78 /* Copy the already-parsed mount(2) flags we're interested in */
79 if (sb
->s_flags
& MS_NOATIME
)
80 args
->flags
|= XFSMNT_NOATIME
;
81 if (sb
->s_flags
& MS_DIRSYNC
)
82 args
->flags
|= XFSMNT_DIRSYNC
;
83 if (sb
->s_flags
& MS_SYNCHRONOUS
)
84 args
->flags
|= XFSMNT_WSYNC
;
86 /* Default to 32 bit inodes on Linux all the time */
87 args
->flags
|= XFSMNT_32BITINODES
;
94 unsigned int blockshift
)
96 unsigned int pagefactor
= 1;
97 unsigned int bitshift
= BITS_PER_LONG
- 1;
99 /* Figure out maximum filesize, on Linux this can depend on
100 * the filesystem blocksize (on 32 bit platforms).
101 * __block_prepare_write does this in an [unsigned] long...
102 * page->index << (PAGE_CACHE_SHIFT - bbits)
103 * So, for page sized blocks (4K on 32 bit platforms),
104 * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is
105 * (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1)
106 * but for smaller blocksizes it is less (bbits = log2 bsize).
107 * Note1: get_block_t takes a long (implicit cast from above)
108 * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch
109 * can optionally convert the [unsigned] long from above into
110 * an [unsigned] long long.
113 #if BITS_PER_LONG == 32
114 # if defined(CONFIG_LBD)
115 ASSERT(sizeof(sector_t
) == 8);
116 pagefactor
= PAGE_CACHE_SIZE
;
117 bitshift
= BITS_PER_LONG
;
119 pagefactor
= PAGE_CACHE_SIZE
>> (PAGE_CACHE_SHIFT
- blockshift
);
123 return (((__uint64_t
)pagefactor
) << bitshift
) - 1;
126 STATIC __inline__
void
130 switch (inode
->i_mode
& S_IFMT
) {
132 inode
->i_op
= &linvfs_file_inode_operations
;
133 inode
->i_fop
= &linvfs_file_operations
;
134 inode
->i_mapping
->a_ops
= &linvfs_aops
;
137 inode
->i_op
= &linvfs_dir_inode_operations
;
138 inode
->i_fop
= &linvfs_dir_operations
;
141 inode
->i_op
= &linvfs_symlink_inode_operations
;
143 inode
->i_mapping
->a_ops
= &linvfs_aops
;
146 inode
->i_op
= &linvfs_file_inode_operations
;
147 init_special_inode(inode
, inode
->i_mode
, inode
->i_rdev
);
152 STATIC __inline__
void
153 xfs_revalidate_inode(
158 struct inode
*inode
= LINVFS_GET_IP(vp
);
160 inode
->i_mode
= ip
->i_d
.di_mode
;
161 inode
->i_nlink
= ip
->i_d
.di_nlink
;
162 inode
->i_uid
= ip
->i_d
.di_uid
;
163 inode
->i_gid
= ip
->i_d
.di_gid
;
165 switch (inode
->i_mode
& S_IFMT
) {
169 MKDEV(sysv_major(ip
->i_df
.if_u2
.if_rdev
) & 0x1ff,
170 sysv_minor(ip
->i_df
.if_u2
.if_rdev
));
177 inode
->i_blksize
= xfs_preferred_iosize(mp
);
178 inode
->i_generation
= ip
->i_d
.di_gen
;
179 i_size_write(inode
, ip
->i_d
.di_size
);
181 XFS_FSB_TO_BB(mp
, ip
->i_d
.di_nblocks
+ ip
->i_delayed_blks
);
182 inode
->i_atime
.tv_sec
= ip
->i_d
.di_atime
.t_sec
;
183 inode
->i_atime
.tv_nsec
= ip
->i_d
.di_atime
.t_nsec
;
184 inode
->i_mtime
.tv_sec
= ip
->i_d
.di_mtime
.t_sec
;
185 inode
->i_mtime
.tv_nsec
= ip
->i_d
.di_mtime
.t_nsec
;
186 inode
->i_ctime
.tv_sec
= ip
->i_d
.di_ctime
.t_sec
;
187 inode
->i_ctime
.tv_nsec
= ip
->i_d
.di_ctime
.t_nsec
;
188 if (ip
->i_d
.di_flags
& XFS_DIFLAG_IMMUTABLE
)
189 inode
->i_flags
|= S_IMMUTABLE
;
191 inode
->i_flags
&= ~S_IMMUTABLE
;
192 if (ip
->i_d
.di_flags
& XFS_DIFLAG_APPEND
)
193 inode
->i_flags
|= S_APPEND
;
195 inode
->i_flags
&= ~S_APPEND
;
196 if (ip
->i_d
.di_flags
& XFS_DIFLAG_SYNC
)
197 inode
->i_flags
|= S_SYNC
;
199 inode
->i_flags
&= ~S_SYNC
;
200 if (ip
->i_d
.di_flags
& XFS_DIFLAG_NOATIME
)
201 inode
->i_flags
|= S_NOATIME
;
203 inode
->i_flags
&= ~S_NOATIME
;
204 vp
->v_flag
&= ~VMODIFIED
;
208 xfs_initialize_vnode(
211 bhv_desc_t
*inode_bhv
,
214 xfs_inode_t
*ip
= XFS_BHVTOI(inode_bhv
);
215 struct inode
*inode
= LINVFS_GET_IP(vp
);
217 if (!inode_bhv
->bd_vobj
) {
218 vp
->v_vfsp
= bhvtovfs(bdp
);
219 bhv_desc_init(inode_bhv
, ip
, vp
, &xfs_vnodeops
);
220 bhv_insert(VN_BHV_HEAD(vp
), inode_bhv
);
224 * We need to set the ops vectors, and unlock the inode, but if
225 * we have been called during the new inode create process, it is
226 * too early to fill in the Linux inode. We will get called a
227 * second time once the inode is properly set up, and then we can
230 if (ip
->i_d
.di_mode
!= 0 && unlock
&& (inode
->i_state
& I_NEW
)) {
231 xfs_revalidate_inode(XFS_BHVTOM(bdp
), vp
, ip
);
232 xfs_set_inodeops(inode
);
234 ip
->i_flags
&= ~XFS_INEW
;
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 * Try to write out the superblock using barriers.
273 xfs_buf_t
*sbp
= xfs_getsb(mp
, 0);
278 XFS_BUF_UNDELAYWRITE(sbp
);
280 XFS_BUF_UNASYNC(sbp
);
281 XFS_BUF_ORDERED(sbp
);
284 error
= xfs_iowait(sbp
);
287 * Clear all the flags we set and possible error state in the
288 * buffer. We only did the write to try out whether barriers
289 * worked and shouldn't leave any traces in the superblock
293 XFS_BUF_ERROR(sbp
, 0);
294 XFS_BUF_UNORDERED(sbp
);
301 xfs_mountfs_check_barriers(xfs_mount_t
*mp
)
305 if (mp
->m_logdev_targp
!= mp
->m_ddev_targp
) {
306 xfs_fs_cmn_err(CE_NOTE
, mp
,
307 "Disabling barriers, not supported with external log device");
308 mp
->m_flags
&= ~XFS_MOUNT_BARRIER
;
311 if (mp
->m_ddev_targp
->pbr_bdev
->bd_disk
->queue
->ordered
==
312 QUEUE_ORDERED_NONE
) {
313 xfs_fs_cmn_err(CE_NOTE
, mp
,
314 "Disabling barriers, not supported by the underlying device");
315 mp
->m_flags
&= ~XFS_MOUNT_BARRIER
;
318 error
= xfs_barrier_test(mp
);
320 xfs_fs_cmn_err(CE_NOTE
, mp
,
321 "Disabling barriers, trial barrier write failed");
322 mp
->m_flags
&= ~XFS_MOUNT_BARRIER
;
327 xfs_blkdev_issue_flush(
328 xfs_buftarg_t
*buftarg
)
330 blkdev_issue_flush(buftarg
->pbr_bdev
, NULL
);
333 STATIC
struct inode
*
335 struct super_block
*sb
)
339 vp
= kmem_cache_alloc(xfs_vnode_zone
, kmem_flags_convert(KM_SLEEP
));
342 return LINVFS_GET_IP(vp
);
346 linvfs_destroy_inode(
349 kmem_zone_free(xfs_vnode_zone
, LINVFS_GET_VP(inode
));
353 linvfs_inode_init_once(
355 kmem_cache_t
*cachep
,
358 vnode_t
*vp
= (vnode_t
*)data
;
360 if ((flags
& (SLAB_CTOR_VERIFY
|SLAB_CTOR_CONSTRUCTOR
)) ==
361 SLAB_CTOR_CONSTRUCTOR
)
362 inode_init_once(LINVFS_GET_IP(vp
));
366 linvfs_init_zones(void)
368 xfs_vnode_zone
= kmem_cache_create("xfs_vnode",
369 sizeof(vnode_t
), 0, SLAB_RECLAIM_ACCOUNT
,
370 linvfs_inode_init_once
, NULL
);
374 xfs_ioend_zone
= kmem_zone_init(sizeof(xfs_ioend_t
), "xfs_ioend");
376 goto out_destroy_vnode_zone
;
378 xfs_ioend_pool
= mempool_create(4 * MAX_BUF_PER_PAGE
,
379 mempool_alloc_slab
, mempool_free_slab
,
382 goto out_free_ioend_zone
;
388 kmem_zone_destroy(xfs_ioend_zone
);
389 out_destroy_vnode_zone
:
390 kmem_zone_destroy(xfs_vnode_zone
);
396 linvfs_destroy_zones(void)
398 mempool_destroy(xfs_ioend_pool
);
399 kmem_zone_destroy(xfs_vnode_zone
);
400 kmem_zone_destroy(xfs_ioend_zone
);
404 * Attempt to flush the inode, this will actually fail
405 * if the inode is pinned, but we dirty the inode again
406 * at the point when it is unpinned after a log write,
407 * since this is when the inode itself becomes flushable.
414 vnode_t
*vp
= LINVFS_GET_VP(inode
);
415 int error
= 0, flags
= FLUSH_INODE
;
418 vn_trace_entry(vp
, __FUNCTION__
, (inst_t
*)__return_address
);
421 VOP_IFLUSH(vp
, flags
, error
);
422 if (error
== EAGAIN
) {
424 VOP_IFLUSH(vp
, flags
| FLUSH_LOG
, error
);
437 vnode_t
*vp
= LINVFS_GET_VP(inode
);
440 vn_trace_entry(vp
, "clear_inode", (inst_t
*)__return_address
);
442 XFS_STATS_INC(vn_rele
);
443 XFS_STATS_INC(vn_remove
);
444 XFS_STATS_INC(vn_reclaim
);
445 XFS_STATS_DEC(vn_active
);
448 * This can happen because xfs_iget_core calls xfs_idestroy if we
449 * find an inode with di_mode == 0 but without IGET_CREATE set.
452 VOP_INACTIVE(vp
, NULL
, cache
);
455 vp
->v_flag
&= ~VMODIFIED
;
459 VOP_RECLAIM(vp
, error
);
461 panic("vn_purge: cannot reclaim");
464 ASSERT(vp
->v_fbhv
== NULL
);
466 #ifdef XFS_VNODE_TRACE
467 ktrace_free(vp
->v_trace
);
472 * Enqueue a work item to be picked up by the vfs xfssyncd thread.
473 * Doing this has two advantages:
474 * - It saves on stack space, which is tight in certain situations
475 * - It can be used (with care) as a mechanism to avoid deadlocks.
476 * Flushing while allocating in a full filesystem requires both.
479 xfs_syncd_queue_work(
482 void (*syncer
)(vfs_t
*, void *))
484 vfs_sync_work_t
*work
;
486 work
= kmem_alloc(sizeof(struct vfs_sync_work
), KM_SLEEP
);
487 INIT_LIST_HEAD(&work
->w_list
);
488 work
->w_syncer
= syncer
;
491 spin_lock(&vfs
->vfs_sync_lock
);
492 list_add_tail(&work
->w_list
, &vfs
->vfs_sync_list
);
493 spin_unlock(&vfs
->vfs_sync_lock
);
494 wake_up_process(vfs
->vfs_sync_task
);
498 * Flush delayed allocate data, attempting to free up reserved space
499 * from existing allocations. At this point a new allocation attempt
500 * has failed with ENOSPC and we are in the process of scratching our
501 * heads, looking about for more room...
504 xfs_flush_inode_work(
508 filemap_flush(((struct inode
*)inode
)->i_mapping
);
509 iput((struct inode
*)inode
);
516 struct inode
*inode
= LINVFS_GET_IP(XFS_ITOV(ip
));
517 struct vfs
*vfs
= XFS_MTOVFS(ip
->i_mount
);
520 xfs_syncd_queue_work(vfs
, inode
, xfs_flush_inode_work
);
521 delay(msecs_to_jiffies(500));
525 * This is the "bigger hammer" version of xfs_flush_inode_work...
526 * (IOW, "If at first you don't succeed, use a Bigger Hammer").
529 xfs_flush_device_work(
533 sync_blockdev(vfs
->vfs_super
->s_bdev
);
534 iput((struct inode
*)inode
);
541 struct inode
*inode
= LINVFS_GET_IP(XFS_ITOV(ip
));
542 struct vfs
*vfs
= XFS_MTOVFS(ip
->i_mount
);
545 xfs_syncd_queue_work(vfs
, inode
, xfs_flush_device_work
);
546 delay(msecs_to_jiffies(500));
547 xfs_log_force(ip
->i_mount
, (xfs_lsn_t
)0, XFS_LOG_FORCE
|XFS_LOG_SYNC
);
550 #define SYNCD_FLAGS (SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR)
558 if (!(vfsp
->vfs_flag
& VFS_RDONLY
))
559 VFS_SYNC(vfsp
, SYNCD_FLAGS
, NULL
, error
);
560 vfsp
->vfs_sync_seq
++;
562 wake_up(&vfsp
->vfs_wait_single_sync_task
);
570 vfs_t
*vfsp
= (vfs_t
*) arg
;
571 struct vfs_sync_work
*work
, *n
;
574 timeleft
= xfs_syncd_centisecs
* msecs_to_jiffies(10);
576 timeleft
= schedule_timeout_interruptible(timeleft
);
579 if (kthread_should_stop())
582 spin_lock(&vfsp
->vfs_sync_lock
);
584 * We can get woken by laptop mode, to do a sync -
585 * that's the (only!) case where the list would be
586 * empty with time remaining.
588 if (!timeleft
|| list_empty(&vfsp
->vfs_sync_list
)) {
590 timeleft
= xfs_syncd_centisecs
*
591 msecs_to_jiffies(10);
592 INIT_LIST_HEAD(&vfsp
->vfs_sync_work
.w_list
);
593 list_add_tail(&vfsp
->vfs_sync_work
.w_list
,
594 &vfsp
->vfs_sync_list
);
596 list_for_each_entry_safe(work
, n
, &vfsp
->vfs_sync_list
, w_list
)
597 list_move(&work
->w_list
, &tmp
);
598 spin_unlock(&vfsp
->vfs_sync_lock
);
600 list_for_each_entry_safe(work
, n
, &tmp
, w_list
) {
601 (*work
->w_syncer
)(vfsp
, work
->w_data
);
602 list_del(&work
->w_list
);
603 if (work
== &vfsp
->vfs_sync_work
)
605 kmem_free(work
, sizeof(struct vfs_sync_work
));
616 vfsp
->vfs_sync_work
.w_syncer
= vfs_sync_worker
;
617 vfsp
->vfs_sync_work
.w_vfs
= vfsp
;
618 vfsp
->vfs_sync_task
= kthread_run(xfssyncd
, vfsp
, "xfssyncd");
619 if (IS_ERR(vfsp
->vfs_sync_task
))
620 return -PTR_ERR(vfsp
->vfs_sync_task
);
628 kthread_stop(vfsp
->vfs_sync_task
);
633 struct super_block
*sb
)
635 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
638 linvfs_stop_syncd(vfsp
);
639 VFS_SYNC(vfsp
, SYNC_ATTR
|SYNC_DELWRI
, NULL
, error
);
641 VFS_UNMOUNT(vfsp
, 0, NULL
, error
);
643 printk("XFS unmount got error %d\n", error
);
644 printk("%s: vfsp/0x%p left dangling!\n", __FUNCTION__
, vfsp
);
648 vfs_deallocate(vfsp
);
653 struct super_block
*sb
)
655 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
658 if (sb
->s_flags
& MS_RDONLY
) {
659 sb
->s_dirt
= 0; /* paranoia */
662 /* Push the log and superblock a little */
663 VFS_SYNC(vfsp
, SYNC_FSDATA
, NULL
, error
);
669 struct super_block
*sb
,
672 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
674 int flags
= SYNC_FSDATA
;
676 if (unlikely(sb
->s_frozen
== SB_FREEZE_WRITE
))
677 flags
= SYNC_QUIESCE
;
679 flags
= SYNC_FSDATA
| (wait
? SYNC_WAIT
: 0);
681 VFS_SYNC(vfsp
, flags
, NULL
, error
);
684 if (unlikely(laptop_mode
)) {
685 int prev_sync_seq
= vfsp
->vfs_sync_seq
;
688 * The disk must be active because we're syncing.
689 * We schedule xfssyncd now (now that the disk is
690 * active) instead of later (when it might not be).
692 wake_up_process(vfsp
->vfs_sync_task
);
694 * We have to wait for the sync iteration to complete.
695 * If we don't, the disk activity caused by the sync
696 * will come after the sync is completed, and that
697 * triggers another sync from laptop mode.
699 wait_event(vfsp
->vfs_wait_single_sync_task
,
700 vfsp
->vfs_sync_seq
!= prev_sync_seq
);
708 struct super_block
*sb
,
709 struct kstatfs
*statp
)
711 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
714 VFS_STATVFS(vfsp
, statp
, NULL
, error
);
720 struct super_block
*sb
,
724 vfs_t
*vfsp
= LINVFS_GET_VFS(sb
);
725 struct xfs_mount_args
*args
= xfs_args_allocate(sb
);
728 VFS_PARSEARGS(vfsp
, options
, args
, 1, error
);
730 VFS_MNTUPDATE(vfsp
, flags
, args
, error
);
731 kmem_free(args
, sizeof(*args
));
737 struct super_block
*sb
)
739 VFS_FREEZE(LINVFS_GET_VFS(sb
));
745 struct vfsmount
*mnt
)
747 struct vfs
*vfsp
= LINVFS_GET_VFS(mnt
->mnt_sb
);
750 VFS_SHOWARGS(vfsp
, m
, error
);
756 struct super_block
*sb
,
759 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
762 VFS_QUOTACTL(vfsp
, Q_XQUOTASYNC
, 0, (caddr_t
)NULL
, error
);
768 struct super_block
*sb
,
769 struct fs_quota_stat
*fqs
)
771 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
774 VFS_QUOTACTL(vfsp
, Q_XGETQSTAT
, 0, (caddr_t
)fqs
, error
);
780 struct super_block
*sb
,
784 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
787 VFS_QUOTACTL(vfsp
, op
, 0, (caddr_t
)&flags
, error
);
793 struct super_block
*sb
,
796 struct fs_disk_quota
*fdq
)
798 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
801 getmode
= (type
== USRQUOTA
) ? Q_XGETQUOTA
:
802 ((type
== GRPQUOTA
) ? Q_XGETGQUOTA
: Q_XGETPQUOTA
);
803 VFS_QUOTACTL(vfsp
, getmode
, id
, (caddr_t
)fdq
, error
);
809 struct super_block
*sb
,
812 struct fs_disk_quota
*fdq
)
814 struct vfs
*vfsp
= LINVFS_GET_VFS(sb
);
817 setmode
= (type
== USRQUOTA
) ? Q_XSETQLIM
:
818 ((type
== GRPQUOTA
) ? Q_XSETGQLIM
: Q_XSETPQLIM
);
819 VFS_QUOTACTL(vfsp
, setmode
, id
, (caddr_t
)fdq
, error
);
825 struct super_block
*sb
,
830 struct vfs
*vfsp
= vfs_allocate();
831 struct xfs_mount_args
*args
= xfs_args_allocate(sb
);
832 struct kstatfs statvfs
;
835 vfsp
->vfs_super
= sb
;
836 LINVFS_SET_VFS(sb
, vfsp
);
837 if (sb
->s_flags
& MS_RDONLY
)
838 vfsp
->vfs_flag
|= VFS_RDONLY
;
839 bhv_insert_all_vfsops(vfsp
);
841 VFS_PARSEARGS(vfsp
, (char *)data
, args
, 0, error
);
843 bhv_remove_all_vfsops(vfsp
, 1);
847 sb_min_blocksize(sb
, BBSIZE
);
848 #ifdef CONFIG_XFS_EXPORT
849 sb
->s_export_op
= &linvfs_export_ops
;
851 sb
->s_qcop
= &linvfs_qops
;
852 sb
->s_op
= &linvfs_sops
;
854 VFS_MOUNT(vfsp
, args
, NULL
, error
);
856 bhv_remove_all_vfsops(vfsp
, 1);
860 VFS_STATVFS(vfsp
, &statvfs
, NULL
, error
);
865 sb
->s_magic
= statvfs
.f_type
;
866 sb
->s_blocksize
= statvfs
.f_bsize
;
867 sb
->s_blocksize_bits
= ffs(statvfs
.f_bsize
) - 1;
868 sb
->s_maxbytes
= xfs_max_file_offset(sb
->s_blocksize_bits
);
870 set_posix_acl_flag(sb
);
872 VFS_ROOT(vfsp
, &rootvp
, error
);
876 sb
->s_root
= d_alloc_root(LINVFS_GET_IP(rootvp
));
881 if (is_bad_inode(sb
->s_root
->d_inode
)) {
885 if ((error
= linvfs_start_syncd(vfsp
)))
887 vn_trace_exit(rootvp
, __FUNCTION__
, (inst_t
*)__return_address
);
889 kmem_free(args
, sizeof(*args
));
901 VFS_UNMOUNT(vfsp
, 0, NULL
, error2
);
904 vfs_deallocate(vfsp
);
905 kmem_free(args
, sizeof(*args
));
909 STATIC
struct super_block
*
911 struct file_system_type
*fs_type
,
913 const char *dev_name
,
916 return get_sb_bdev(fs_type
, flags
, dev_name
, data
, linvfs_fill_super
);
919 STATIC
struct super_operations linvfs_sops
= {
920 .alloc_inode
= linvfs_alloc_inode
,
921 .destroy_inode
= linvfs_destroy_inode
,
922 .write_inode
= linvfs_write_inode
,
923 .clear_inode
= linvfs_clear_inode
,
924 .put_super
= linvfs_put_super
,
925 .write_super
= linvfs_write_super
,
926 .sync_fs
= linvfs_sync_super
,
927 .write_super_lockfs
= linvfs_freeze_fs
,
928 .statfs
= linvfs_statfs
,
929 .remount_fs
= linvfs_remount
,
930 .show_options
= linvfs_show_options
,
933 STATIC
struct quotactl_ops linvfs_qops
= {
934 .quota_sync
= linvfs_quotasync
,
935 .get_xstate
= linvfs_getxstate
,
936 .set_xstate
= linvfs_setxstate
,
937 .get_xquota
= linvfs_getxquota
,
938 .set_xquota
= linvfs_setxquota
,
941 STATIC
struct file_system_type xfs_fs_type
= {
942 .owner
= THIS_MODULE
,
944 .get_sb
= linvfs_get_sb
,
945 .kill_sb
= kill_block_super
,
946 .fs_flags
= FS_REQUIRES_DEV
,
955 static char message
[] __initdata
= KERN_INFO \
956 XFS_VERSION_STRING
" with " XFS_BUILD_OPTIONS
" enabled\n";
961 xfs_physmem
= si
.totalram
;
965 error
= linvfs_init_zones();
969 error
= pagebuf_init();
978 error
= register_filesystem(&xfs_fs_type
);
981 XFS_DM_INIT(&xfs_fs_type
);
988 linvfs_destroy_zones();
998 XFS_DM_EXIT(&xfs_fs_type
);
999 unregister_filesystem(&xfs_fs_type
);
1001 pagebuf_terminate();
1002 linvfs_destroy_zones();
1006 module_init(init_xfs_fs
);
1007 module_exit(exit_xfs_fs
);
1009 MODULE_AUTHOR("Silicon Graphics, Inc.");
1010 MODULE_DESCRIPTION(XFS_VERSION_STRING
" with " XFS_BUILD_OPTIONS
" enabled");
1011 MODULE_LICENSE("GPL");