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 xfs_quotactl_operations;
63 STATIC struct super_operations xfs_super_operations;
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,
73 struct xfs_mount_args *args;
75 args = kmem_zalloc(sizeof(struct xfs_mount_args), KM_SLEEP);
76 args->logbufs = args->logbufsize = -1;
77 strncpy(args->fsname, sb->s_id, MAXNAMELEN);
79 /* Copy the already-parsed mount(2) flags we're interested in */
80 if (sb->s_flags & MS_DIRSYNC)
81 args->flags |= XFSMNT_DIRSYNC;
82 if (sb->s_flags & MS_SYNCHRONOUS)
83 args->flags |= XFSMNT_WSYNC;
85 args->flags |= XFSMNT_QUIET;
86 args->flags |= XFSMNT_32BITINODES;
93 unsigned int blockshift)
95 unsigned int pagefactor = 1;
96 unsigned int bitshift = BITS_PER_LONG - 1;
98 /* Figure out maximum filesize, on Linux this can depend on
99 * the filesystem blocksize (on 32 bit platforms).
100 * __block_prepare_write does this in an [unsigned] long...
101 * page->index << (PAGE_CACHE_SHIFT - bbits)
102 * So, for page sized blocks (4K on 32 bit platforms),
103 * this wraps at around 8Tb (hence MAX_LFS_FILESIZE which is
104 * (((u64)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1)
105 * but for smaller blocksizes it is less (bbits = log2 bsize).
106 * Note1: get_block_t takes a long (implicit cast from above)
107 * Note2: The Large Block Device (LBD and HAVE_SECTOR_T) patch
108 * can optionally convert the [unsigned] long from above into
109 * an [unsigned] long long.
112 #if BITS_PER_LONG == 32
113 # if defined(CONFIG_LBD)
114 ASSERT(sizeof(sector_t) == 8);
115 pagefactor = PAGE_CACHE_SIZE;
116 bitshift = BITS_PER_LONG;
118 pagefactor = PAGE_CACHE_SIZE >> (PAGE_CACHE_SHIFT - blockshift);
122 return (((__uint64_t)pagefactor) << bitshift) - 1;
125 STATIC __inline__ void
129 switch (inode->i_mode & S_IFMT) {
131 inode->i_op = &xfs_inode_operations;
132 inode->i_fop = &xfs_file_operations;
133 inode->i_mapping->a_ops = &xfs_address_space_operations;
136 inode->i_op = &xfs_dir_inode_operations;
137 inode->i_fop = &xfs_dir_file_operations;
140 inode->i_op = &xfs_symlink_inode_operations;
142 inode->i_mapping->a_ops = &xfs_address_space_operations;
145 inode->i_op = &xfs_inode_operations;
146 init_special_inode(inode, inode->i_mode, inode->i_rdev);
151 STATIC __inline__ void
152 xfs_revalidate_inode(
157 struct inode *inode = vn_to_inode(vp);
159 inode->i_mode = ip->i_d.di_mode;
160 inode->i_nlink = ip->i_d.di_nlink;
161 inode->i_uid = ip->i_d.di_uid;
162 inode->i_gid = ip->i_d.di_gid;
163 inode->i_xid = ip->i_d.di_xid;
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_IUNLINK)
193 inode->i_flags |= S_IUNLINK;
195 inode->i_flags &= ~S_IUNLINK;
196 if (ip->i_d.di_flags & XFS_DIFLAG_BARRIER)
197 inode->i_flags |= S_BARRIER;
199 inode->i_flags &= ~S_BARRIER;
200 if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
201 inode->i_flags |= S_APPEND;
203 inode->i_flags &= ~S_APPEND;
204 if (ip->i_d.di_flags & XFS_DIFLAG_SYNC)
205 inode->i_flags |= S_SYNC;
207 inode->i_flags &= ~S_SYNC;
208 if (ip->i_d.di_flags & XFS_DIFLAG_NOATIME)
209 inode->i_flags |= S_NOATIME;
211 inode->i_flags &= ~S_NOATIME;
212 vp->v_flag &= ~VMODIFIED;
216 xfs_initialize_vnode(
219 bhv_desc_t *inode_bhv,
222 xfs_inode_t *ip = XFS_BHVTOI(inode_bhv);
223 struct inode *inode = vn_to_inode(vp);
225 if (!inode_bhv->bd_vobj) {
226 vp->v_vfsp = bhvtovfs(bdp);
227 bhv_desc_init(inode_bhv, ip, vp, &xfs_vnodeops);
228 bhv_insert(VN_BHV_HEAD(vp), inode_bhv);
232 * We need to set the ops vectors, and unlock the inode, but if
233 * we have been called during the new inode create process, it is
234 * too early to fill in the Linux inode. We will get called a
235 * second time once the inode is properly set up, and then we can
238 if (ip->i_d.di_mode != 0 && unlock && (inode->i_state & I_NEW)) {
239 xfs_revalidate_inode(XFS_BHVTOM(bdp), vp, ip);
240 xfs_set_inodeops(inode);
242 ip->i_flags &= ~XFS_INEW;
245 unlock_new_inode(inode);
253 struct block_device **bdevp)
257 *bdevp = open_bdev_excl(name, 0, mp);
258 if (IS_ERR(*bdevp)) {
259 error = PTR_ERR(*bdevp);
260 printk("XFS: Invalid device [%s], error=%d\n", name, error);
268 struct block_device *bdev)
271 close_bdev_excl(bdev);
275 * Try to write out the superblock using barriers.
281 xfs_buf_t *sbp = xfs_getsb(mp, 0);
286 XFS_BUF_UNDELAYWRITE(sbp);
288 XFS_BUF_UNASYNC(sbp);
289 XFS_BUF_ORDERED(sbp);
292 error = xfs_iowait(sbp);
295 * Clear all the flags we set and possible error state in the
296 * buffer. We only did the write to try out whether barriers
297 * worked and shouldn't leave any traces in the superblock
301 XFS_BUF_ERROR(sbp, 0);
302 XFS_BUF_UNORDERED(sbp);
309 xfs_mountfs_check_barriers(xfs_mount_t *mp)
313 if (mp->m_logdev_targp != mp->m_ddev_targp) {
314 xfs_fs_cmn_err(CE_NOTE, mp,
315 "Disabling barriers, not supported with external log device");
316 mp->m_flags &= ~XFS_MOUNT_BARRIER;
320 if (mp->m_ddev_targp->bt_bdev->bd_disk->queue->ordered ==
321 QUEUE_ORDERED_NONE) {
322 xfs_fs_cmn_err(CE_NOTE, mp,
323 "Disabling barriers, not supported by the underlying device");
324 mp->m_flags &= ~XFS_MOUNT_BARRIER;
328 error = xfs_barrier_test(mp);
330 xfs_fs_cmn_err(CE_NOTE, mp,
331 "Disabling barriers, trial barrier write failed");
332 mp->m_flags &= ~XFS_MOUNT_BARRIER;
338 xfs_blkdev_issue_flush(
339 xfs_buftarg_t *buftarg)
341 blkdev_issue_flush(buftarg->bt_bdev, NULL);
344 STATIC struct inode *
346 struct super_block *sb)
350 vp = kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP);
353 return vn_to_inode(vp);
357 xfs_fs_destroy_inode(
360 kmem_zone_free(xfs_vnode_zone, vn_from_inode(inode));
364 xfs_fs_inode_init_once(
369 if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
370 SLAB_CTOR_CONSTRUCTOR)
371 inode_init_once(vn_to_inode((vnode_t *)vnode));
377 xfs_vnode_zone = kmem_zone_init_flags(sizeof(vnode_t), "xfs_vnode_t",
378 KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
380 xfs_fs_inode_init_once);
384 xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend");
386 goto out_destroy_vnode_zone;
388 xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE,
391 goto out_free_ioend_zone;
395 kmem_zone_destroy(xfs_ioend_zone);
396 out_destroy_vnode_zone:
397 kmem_zone_destroy(xfs_vnode_zone);
403 xfs_destroy_zones(void)
405 mempool_destroy(xfs_ioend_pool);
406 kmem_zone_destroy(xfs_vnode_zone);
407 kmem_zone_destroy(xfs_ioend_zone);
411 * Attempt to flush the inode, this will actually fail
412 * if the inode is pinned, but we dirty the inode again
413 * at the point when it is unpinned after a log write,
414 * since this is when the inode itself becomes flushable.
421 vnode_t *vp = vn_from_inode(inode);
422 int error = 0, flags = FLUSH_INODE;
425 vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
428 VOP_IFLUSH(vp, flags, error);
429 if (error == EAGAIN) {
431 VOP_IFLUSH(vp, flags | FLUSH_LOG, error);
444 vnode_t *vp = vn_from_inode(inode);
447 vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
449 XFS_STATS_INC(vn_rele);
450 XFS_STATS_INC(vn_remove);
451 XFS_STATS_INC(vn_reclaim);
452 XFS_STATS_DEC(vn_active);
455 * This can happen because xfs_iget_core calls xfs_idestroy if we
456 * find an inode with di_mode == 0 but without IGET_CREATE set.
459 VOP_INACTIVE(vp, NULL, cache);
462 vp->v_flag &= ~VMODIFIED;
466 VOP_RECLAIM(vp, error);
468 panic("vn_purge: cannot reclaim");
471 ASSERT(vp->v_fbhv == NULL);
473 #ifdef XFS_VNODE_TRACE
474 ktrace_free(vp->v_trace);
479 * Enqueue a work item to be picked up by the vfs xfssyncd thread.
480 * Doing this has two advantages:
481 * - It saves on stack space, which is tight in certain situations
482 * - It can be used (with care) as a mechanism to avoid deadlocks.
483 * Flushing while allocating in a full filesystem requires both.
486 xfs_syncd_queue_work(
489 void (*syncer)(vfs_t *, void *))
491 vfs_sync_work_t *work;
493 work = kmem_alloc(sizeof(struct vfs_sync_work), KM_SLEEP);
494 INIT_LIST_HEAD(&work->w_list);
495 work->w_syncer = syncer;
498 spin_lock(&vfs->vfs_sync_lock);
499 list_add_tail(&work->w_list, &vfs->vfs_sync_list);
500 spin_unlock(&vfs->vfs_sync_lock);
501 wake_up_process(vfs->vfs_sync_task);
505 * Flush delayed allocate data, attempting to free up reserved space
506 * from existing allocations. At this point a new allocation attempt
507 * has failed with ENOSPC and we are in the process of scratching our
508 * heads, looking about for more room...
511 xfs_flush_inode_work(
515 filemap_flush(((struct inode *)inode)->i_mapping);
516 iput((struct inode *)inode);
523 struct inode *inode = vn_to_inode(XFS_ITOV(ip));
524 struct vfs *vfs = XFS_MTOVFS(ip->i_mount);
527 xfs_syncd_queue_work(vfs, inode, xfs_flush_inode_work);
528 delay(msecs_to_jiffies(500));
532 * This is the "bigger hammer" version of xfs_flush_inode_work...
533 * (IOW, "If at first you don't succeed, use a Bigger Hammer").
536 xfs_flush_device_work(
540 sync_blockdev(vfs->vfs_super->s_bdev);
541 iput((struct inode *)inode);
548 struct inode *inode = vn_to_inode(XFS_ITOV(ip));
549 struct vfs *vfs = XFS_MTOVFS(ip->i_mount);
552 xfs_syncd_queue_work(vfs, inode, xfs_flush_device_work);
553 delay(msecs_to_jiffies(500));
554 xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC);
557 #define SYNCD_FLAGS (SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR|SYNC_REFCACHE)
565 if (!(vfsp->vfs_flag & VFS_RDONLY))
566 VFS_SYNC(vfsp, SYNCD_FLAGS, NULL, error);
567 vfsp->vfs_sync_seq++;
569 wake_up(&vfsp->vfs_wait_single_sync_task);
577 vfs_t *vfsp = (vfs_t *) arg;
578 struct vfs_sync_work *work, *n;
581 timeleft = xfs_syncd_centisecs * msecs_to_jiffies(10);
583 timeleft = schedule_timeout_interruptible(timeleft);
586 if (kthread_should_stop() && list_empty(&vfsp->vfs_sync_list))
589 spin_lock(&vfsp->vfs_sync_lock);
591 * We can get woken by laptop mode, to do a sync -
592 * that's the (only!) case where the list would be
593 * empty with time remaining.
595 if (!timeleft || list_empty(&vfsp->vfs_sync_list)) {
597 timeleft = xfs_syncd_centisecs *
598 msecs_to_jiffies(10);
599 INIT_LIST_HEAD(&vfsp->vfs_sync_work.w_list);
600 list_add_tail(&vfsp->vfs_sync_work.w_list,
601 &vfsp->vfs_sync_list);
603 list_for_each_entry_safe(work, n, &vfsp->vfs_sync_list, w_list)
604 list_move(&work->w_list, &tmp);
605 spin_unlock(&vfsp->vfs_sync_lock);
607 list_for_each_entry_safe(work, n, &tmp, w_list) {
608 (*work->w_syncer)(vfsp, work->w_data);
609 list_del(&work->w_list);
610 if (work == &vfsp->vfs_sync_work)
612 kmem_free(work, sizeof(struct vfs_sync_work));
623 vfsp->vfs_sync_work.w_syncer = vfs_sync_worker;
624 vfsp->vfs_sync_work.w_vfs = vfsp;
625 vfsp->vfs_sync_task = kthread_run(xfssyncd, vfsp, "xfssyncd");
626 if (IS_ERR(vfsp->vfs_sync_task))
627 return -PTR_ERR(vfsp->vfs_sync_task);
635 kthread_stop(vfsp->vfs_sync_task);
640 struct super_block *sb)
642 vfs_t *vfsp = vfs_from_sb(sb);
645 xfs_fs_stop_syncd(vfsp);
646 VFS_SYNC(vfsp, SYNC_ATTR|SYNC_DELWRI, NULL, error);
648 VFS_UNMOUNT(vfsp, 0, NULL, error);
650 printk("XFS unmount got error %d\n", error);
651 printk("%s: vfsp/0x%p left dangling!\n", __FUNCTION__, vfsp);
655 vfs_deallocate(vfsp);
660 struct super_block *sb)
662 vfs_t *vfsp = vfs_from_sb(sb);
665 if (sb->s_flags & MS_RDONLY) {
666 sb->s_dirt = 0; /* paranoia */
669 /* Push the log and superblock a little */
670 VFS_SYNC(vfsp, SYNC_FSDATA, NULL, error);
676 struct super_block *sb,
679 vfs_t *vfsp = vfs_from_sb(sb);
681 int flags = SYNC_FSDATA;
683 if (unlikely(sb->s_frozen == SB_FREEZE_WRITE))
684 flags = SYNC_QUIESCE;
686 flags = SYNC_FSDATA | (wait ? SYNC_WAIT : 0);
688 VFS_SYNC(vfsp, flags, NULL, error);
691 if (unlikely(laptop_mode)) {
692 int prev_sync_seq = vfsp->vfs_sync_seq;
695 * The disk must be active because we're syncing.
696 * We schedule xfssyncd now (now that the disk is
697 * active) instead of later (when it might not be).
699 wake_up_process(vfsp->vfs_sync_task);
701 * We have to wait for the sync iteration to complete.
702 * If we don't, the disk activity caused by the sync
703 * will come after the sync is completed, and that
704 * triggers another sync from laptop mode.
706 wait_event(vfsp->vfs_wait_single_sync_task,
707 vfsp->vfs_sync_seq != prev_sync_seq);
715 struct super_block *sb,
716 struct kstatfs *statp)
718 vfs_t *vfsp = vfs_from_sb(sb);
721 VFS_STATVFS(vfsp, statp, NULL, error);
727 struct super_block *sb,
731 vfs_t *vfsp = vfs_from_sb(sb);
732 struct xfs_mount_args *args = xfs_args_allocate(sb, 0);
735 VFS_PARSEARGS(vfsp, options, args, 1, error);
736 if ((args->flags2 & XFSMNT2_TAGXID) &&
737 !(sb->s_flags & MS_TAGXID)) {
738 printk("XFS: %s: tagxid not permitted on remount.\n",
743 VFS_MNTUPDATE(vfsp, flags, args, error);
744 kmem_free(args, sizeof(*args));
750 struct super_block *sb)
752 VFS_FREEZE(vfs_from_sb(sb));
758 struct vfsmount *mnt)
760 struct vfs *vfsp = vfs_from_sb(mnt->mnt_sb);
763 VFS_SHOWARGS(vfsp, m, error);
769 struct super_block *sb,
772 struct vfs *vfsp = vfs_from_sb(sb);
775 VFS_QUOTACTL(vfsp, Q_XQUOTASYNC, 0, (caddr_t)NULL, error);
781 struct super_block *sb,
782 struct fs_quota_stat *fqs)
784 struct vfs *vfsp = vfs_from_sb(sb);
787 VFS_QUOTACTL(vfsp, Q_XGETQSTAT, 0, (caddr_t)fqs, error);
793 struct super_block *sb,
797 struct vfs *vfsp = vfs_from_sb(sb);
800 VFS_QUOTACTL(vfsp, op, 0, (caddr_t)&flags, error);
806 struct super_block *sb,
809 struct fs_disk_quota *fdq)
811 struct vfs *vfsp = vfs_from_sb(sb);
814 getmode = (type == USRQUOTA) ? Q_XGETQUOTA :
815 ((type == GRPQUOTA) ? Q_XGETGQUOTA : Q_XGETPQUOTA);
816 VFS_QUOTACTL(vfsp, getmode, id, (caddr_t)fdq, error);
822 struct super_block *sb,
825 struct fs_disk_quota *fdq)
827 struct vfs *vfsp = vfs_from_sb(sb);
830 setmode = (type == USRQUOTA) ? Q_XSETQLIM :
831 ((type == GRPQUOTA) ? Q_XSETGQLIM : Q_XSETPQLIM);
832 VFS_QUOTACTL(vfsp, setmode, id, (caddr_t)fdq, error);
838 struct super_block *sb,
843 struct vfs *vfsp = vfs_allocate(sb);
844 struct xfs_mount_args *args = xfs_args_allocate(sb, silent);
845 struct kstatfs statvfs;
848 bhv_insert_all_vfsops(vfsp);
850 VFS_PARSEARGS(vfsp, (char *)data, args, 0, error);
852 bhv_remove_all_vfsops(vfsp, 1);
856 sb_min_blocksize(sb, BBSIZE);
857 #ifdef CONFIG_XFS_EXPORT
858 sb->s_export_op = &xfs_export_operations;
860 sb->s_qcop = &xfs_quotactl_operations;
861 sb->s_op = &xfs_super_operations;
863 VFS_MOUNT(vfsp, args, NULL, error);
865 bhv_remove_all_vfsops(vfsp, 1);
869 VFS_STATVFS(vfsp, &statvfs, NULL, error);
874 sb->s_magic = statvfs.f_type;
875 sb->s_blocksize = statvfs.f_bsize;
876 sb->s_blocksize_bits = ffs(statvfs.f_bsize) - 1;
877 sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits);
879 set_posix_acl_flag(sb);
881 VFS_ROOT(vfsp, &rootvp, error);
885 sb->s_root = d_alloc_root(vn_to_inode(rootvp));
890 if (is_bad_inode(sb->s_root->d_inode)) {
894 if ((error = xfs_fs_start_syncd(vfsp)))
896 vn_trace_exit(rootvp, __FUNCTION__, (inst_t *)__return_address);
898 kmem_free(args, sizeof(*args));
910 VFS_UNMOUNT(vfsp, 0, NULL, error2);
913 vfs_deallocate(vfsp);
914 kmem_free(args, sizeof(*args));
918 STATIC struct super_block *
920 struct file_system_type *fs_type,
922 const char *dev_name,
925 return get_sb_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super);
928 STATIC struct super_operations xfs_super_operations = {
929 .alloc_inode = xfs_fs_alloc_inode,
930 .destroy_inode = xfs_fs_destroy_inode,
931 .write_inode = xfs_fs_write_inode,
932 .clear_inode = xfs_fs_clear_inode,
933 .put_super = xfs_fs_put_super,
934 .write_super = xfs_fs_write_super,
935 .sync_fs = xfs_fs_sync_super,
936 .write_super_lockfs = xfs_fs_lockfs,
937 .statfs = xfs_fs_statfs,
938 .remount_fs = xfs_fs_remount,
939 .show_options = xfs_fs_show_options,
942 STATIC struct quotactl_ops xfs_quotactl_operations = {
943 .quota_sync = xfs_fs_quotasync,
944 .get_xstate = xfs_fs_getxstate,
945 .set_xstate = xfs_fs_setxstate,
946 .get_xquota = xfs_fs_getxquota,
947 .set_xquota = xfs_fs_setxquota,
950 STATIC struct file_system_type xfs_fs_type = {
951 .owner = THIS_MODULE,
953 .get_sb = xfs_fs_get_sb,
954 .kill_sb = kill_block_super,
955 .fs_flags = FS_REQUIRES_DEV,
964 static char message[] __initdata = KERN_INFO \
965 XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled\n";
970 xfs_physmem = si.totalram;
974 error = xfs_init_zones();
978 error = xfs_buf_init();
987 error = register_filesystem(&xfs_fs_type);
1006 unregister_filesystem(&xfs_fs_type);
1008 xfs_buf_terminate();
1009 xfs_destroy_zones();
1013 module_init(init_xfs_fs);
1014 module_exit(exit_xfs_fs);
1016 MODULE_AUTHOR("Silicon Graphics, Inc.");
1017 MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled");
1018 MODULE_LICENSE("GPL");