2 * Copyright (c) 2000-2006 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"
27 #include "xfs_alloc.h"
28 #include "xfs_dmapi.h"
29 #include "xfs_quota.h"
30 #include "xfs_mount.h"
31 #include "xfs_bmap_btree.h"
32 #include "xfs_alloc_btree.h"
33 #include "xfs_ialloc_btree.h"
34 #include "xfs_dir2_sf.h"
35 #include "xfs_attr_sf.h"
36 #include "xfs_dinode.h"
37 #include "xfs_inode.h"
38 #include "xfs_btree.h"
39 #include "xfs_ialloc.h"
41 #include "xfs_rtalloc.h"
42 #include "xfs_error.h"
43 #include "xfs_itable.h"
44 #include "xfs_fsops.h"
48 #include "xfs_buf_item.h"
49 #include "xfs_utils.h"
50 #include "xfs_vnodeops.h"
51 #include "xfs_vfsops.h"
52 #include "xfs_version.h"
54 #include <linux/namei.h>
55 #include <linux/init.h>
56 #include <linux/mount.h>
57 #include <linux/mempool.h>
58 #include <linux/writeback.h>
59 #include <linux/kthread.h>
60 #include <linux/freezer.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;
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);
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;
164 switch (inode->i_mode & S_IFMT) {
168 MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff,
169 sysv_minor(ip->i_df.if_u2.if_rdev));
176 inode->i_generation = ip->i_d.di_gen;
177 i_size_write(inode, ip->i_d.di_size);
179 XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
180 inode->i_atime.tv_sec = ip->i_d.di_atime.t_sec;
181 inode->i_atime.tv_nsec = ip->i_d.di_atime.t_nsec;
182 inode->i_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
183 inode->i_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
184 inode->i_ctime.tv_sec = ip->i_d.di_ctime.t_sec;
185 inode->i_ctime.tv_nsec = ip->i_d.di_ctime.t_nsec;
186 if (ip->i_d.di_flags & XFS_DIFLAG_IMMUTABLE)
187 inode->i_flags |= S_IMMUTABLE;
189 inode->i_flags &= ~S_IMMUTABLE;
190 if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
191 inode->i_flags |= S_APPEND;
193 inode->i_flags &= ~S_APPEND;
194 if (ip->i_d.di_flags & XFS_DIFLAG_SYNC)
195 inode->i_flags |= S_SYNC;
197 inode->i_flags &= ~S_SYNC;
198 if (ip->i_d.di_flags & XFS_DIFLAG_NOATIME)
199 inode->i_flags |= S_NOATIME;
201 inode->i_flags &= ~S_NOATIME;
202 xfs_iflags_clear(ip, XFS_IMODIFIED);
206 xfs_initialize_vnode(
207 struct xfs_mount *mp,
209 struct xfs_inode *ip)
211 struct inode *inode = vn_to_inode(vp);
215 inode->i_private = ip;
219 * We need to set the ops vectors, and unlock the inode, but if
220 * we have been called during the new inode create process, it is
221 * too early to fill in the Linux inode. We will get called a
222 * second time once the inode is properly set up, and then we can
225 if (ip->i_d.di_mode != 0 && (inode->i_state & I_NEW)) {
226 xfs_revalidate_inode(mp, vp, ip);
227 xfs_set_inodeops(inode);
229 xfs_iflags_clear(ip, XFS_INEW);
232 unlock_new_inode(inode);
240 struct block_device **bdevp)
244 *bdevp = open_bdev_excl(name, 0, mp);
245 if (IS_ERR(*bdevp)) {
246 error = PTR_ERR(*bdevp);
247 printk("XFS: Invalid device [%s], error=%d\n", name, error);
255 struct block_device *bdev)
258 close_bdev_excl(bdev);
262 * Try to write out the superblock using barriers.
268 xfs_buf_t *sbp = xfs_getsb(mp, 0);
273 XFS_BUF_UNDELAYWRITE(sbp);
275 XFS_BUF_UNASYNC(sbp);
276 XFS_BUF_ORDERED(sbp);
279 error = xfs_iowait(sbp);
282 * Clear all the flags we set and possible error state in the
283 * buffer. We only did the write to try out whether barriers
284 * worked and shouldn't leave any traces in the superblock
288 XFS_BUF_ERROR(sbp, 0);
289 XFS_BUF_UNORDERED(sbp);
296 xfs_mountfs_check_barriers(xfs_mount_t *mp)
300 if (mp->m_logdev_targp != mp->m_ddev_targp) {
301 xfs_fs_cmn_err(CE_NOTE, mp,
302 "Disabling barriers, not supported with external log device");
303 mp->m_flags &= ~XFS_MOUNT_BARRIER;
307 if (mp->m_ddev_targp->bt_bdev->bd_disk->queue->ordered ==
308 QUEUE_ORDERED_NONE) {
309 xfs_fs_cmn_err(CE_NOTE, mp,
310 "Disabling barriers, not supported by the underlying device");
311 mp->m_flags &= ~XFS_MOUNT_BARRIER;
315 if (xfs_readonly_buftarg(mp->m_ddev_targp)) {
316 xfs_fs_cmn_err(CE_NOTE, mp,
317 "Disabling barriers, underlying device is readonly");
318 mp->m_flags &= ~XFS_MOUNT_BARRIER;
322 error = xfs_barrier_test(mp);
324 xfs_fs_cmn_err(CE_NOTE, mp,
325 "Disabling barriers, trial barrier write failed");
326 mp->m_flags &= ~XFS_MOUNT_BARRIER;
332 xfs_blkdev_issue_flush(
333 xfs_buftarg_t *buftarg)
335 blkdev_issue_flush(buftarg->bt_bdev, NULL);
338 STATIC struct inode *
340 struct super_block *sb)
344 vp = kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP);
347 return vn_to_inode(vp);
351 xfs_fs_destroy_inode(
354 kmem_zone_free(xfs_vnode_zone, vn_from_inode(inode));
358 xfs_fs_inode_init_once(
362 inode_init_once(vn_to_inode((bhv_vnode_t *)vnode));
368 xfs_vnode_zone = kmem_zone_init_flags(sizeof(bhv_vnode_t), "xfs_vnode",
369 KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
371 xfs_fs_inode_init_once);
375 xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend");
377 goto out_destroy_vnode_zone;
379 xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE,
382 goto out_free_ioend_zone;
386 kmem_zone_destroy(xfs_ioend_zone);
387 out_destroy_vnode_zone:
388 kmem_zone_destroy(xfs_vnode_zone);
394 xfs_destroy_zones(void)
396 mempool_destroy(xfs_ioend_pool);
397 kmem_zone_destroy(xfs_vnode_zone);
398 kmem_zone_destroy(xfs_ioend_zone);
402 * Attempt to flush the inode, this will actually fail
403 * if the inode is pinned, but we dirty the inode again
404 * at the point when it is unpinned after a log write,
405 * since this is when the inode itself becomes flushable.
412 int error = 0, flags = FLUSH_INODE;
414 xfs_itrace_entry(XFS_I(inode));
416 filemap_fdatawait(inode->i_mapping);
419 error = xfs_inode_flush(XFS_I(inode), flags);
421 * if we failed to write out the inode then mark
422 * it dirty again so we'll try again later.
425 mark_inode_dirty_sync(inode);
434 xfs_inode_t *ip = XFS_I(inode);
437 * ip can be null when xfs_iget_core calls xfs_idestroy if we
438 * find an inode with di_mode == 0 but without IGET_CREATE set.
441 xfs_itrace_entry(ip);
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 xfs_iflags_clear(ip, XFS_IMODIFIED);
450 panic("%s: cannot reclaim 0x%p\n", __FUNCTION__, inode);
453 ASSERT(XFS_I(inode) == NULL);
457 * Enqueue a work item to be picked up by the vfs xfssyncd thread.
458 * Doing this has two advantages:
459 * - It saves on stack space, which is tight in certain situations
460 * - It can be used (with care) as a mechanism to avoid deadlocks.
461 * Flushing while allocating in a full filesystem requires both.
464 xfs_syncd_queue_work(
465 struct xfs_mount *mp,
467 void (*syncer)(struct xfs_mount *, void *))
469 struct bhv_vfs_sync_work *work;
471 work = kmem_alloc(sizeof(struct bhv_vfs_sync_work), KM_SLEEP);
472 INIT_LIST_HEAD(&work->w_list);
473 work->w_syncer = syncer;
476 spin_lock(&mp->m_sync_lock);
477 list_add_tail(&work->w_list, &mp->m_sync_list);
478 spin_unlock(&mp->m_sync_lock);
479 wake_up_process(mp->m_sync_task);
483 * Flush delayed allocate data, attempting to free up reserved space
484 * from existing allocations. At this point a new allocation attempt
485 * has failed with ENOSPC and we are in the process of scratching our
486 * heads, looking about for more room...
489 xfs_flush_inode_work(
490 struct xfs_mount *mp,
493 struct inode *inode = arg;
494 filemap_flush(inode->i_mapping);
502 struct inode *inode = ip->i_vnode;
505 xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inode_work);
506 delay(msecs_to_jiffies(500));
510 * This is the "bigger hammer" version of xfs_flush_inode_work...
511 * (IOW, "If at first you don't succeed, use a Bigger Hammer").
514 xfs_flush_device_work(
515 struct xfs_mount *mp,
518 struct inode *inode = arg;
519 sync_blockdev(mp->m_super->s_bdev);
527 struct inode *inode = vn_to_inode(XFS_ITOV(ip));
530 xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_device_work);
531 delay(msecs_to_jiffies(500));
532 xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC);
537 struct xfs_mount *mp,
542 if (!(mp->m_flags & XFS_MOUNT_RDONLY))
543 error = xfs_sync(mp, SYNC_FSDATA | SYNC_BDFLUSH | SYNC_ATTR |
544 SYNC_REFCACHE | SYNC_SUPER);
546 wake_up(&mp->m_wait_single_sync_task);
553 struct xfs_mount *mp = arg;
555 bhv_vfs_sync_work_t *work, *n;
559 timeleft = xfs_syncd_centisecs * msecs_to_jiffies(10);
561 timeleft = schedule_timeout_interruptible(timeleft);
564 if (kthread_should_stop() && list_empty(&mp->m_sync_list))
567 spin_lock(&mp->m_sync_lock);
569 * We can get woken by laptop mode, to do a sync -
570 * that's the (only!) case where the list would be
571 * empty with time remaining.
573 if (!timeleft || list_empty(&mp->m_sync_list)) {
575 timeleft = xfs_syncd_centisecs *
576 msecs_to_jiffies(10);
577 INIT_LIST_HEAD(&mp->m_sync_work.w_list);
578 list_add_tail(&mp->m_sync_work.w_list,
581 list_for_each_entry_safe(work, n, &mp->m_sync_list, w_list)
582 list_move(&work->w_list, &tmp);
583 spin_unlock(&mp->m_sync_lock);
585 list_for_each_entry_safe(work, n, &tmp, w_list) {
586 (*work->w_syncer)(mp, work->w_data);
587 list_del(&work->w_list);
588 if (work == &mp->m_sync_work)
590 kmem_free(work, sizeof(struct bhv_vfs_sync_work));
599 struct super_block *sb)
601 struct xfs_mount *mp = XFS_M(sb);
604 kthread_stop(mp->m_sync_task);
606 xfs_sync(mp, SYNC_ATTR | SYNC_DELWRI);
607 error = xfs_unmount(mp, 0, NULL);
609 printk("XFS: unmount got error=%d\n", error);
614 struct super_block *sb)
616 if (!(sb->s_flags & MS_RDONLY))
617 xfs_sync(XFS_M(sb), SYNC_FSDATA);
623 struct super_block *sb,
626 struct xfs_mount *mp = XFS_M(sb);
631 * Treat a sync operation like a freeze. This is to work
632 * around a race in sync_inodes() which works in two phases
633 * - an asynchronous flush, which can write out an inode
634 * without waiting for file size updates to complete, and a
635 * synchronous flush, which wont do anything because the
636 * async flush removed the inode's dirty flag. Also
637 * sync_inodes() will not see any files that just have
638 * outstanding transactions to be flushed because we don't
639 * dirty the Linux inode until after the transaction I/O
642 if (wait || unlikely(sb->s_frozen == SB_FREEZE_WRITE)) {
644 * First stage of freeze - no more writers will make progress
645 * now we are here, so we flush delwri and delalloc buffers
646 * here, then wait for all I/O to complete. Data is frozen at
647 * that point. Metadata is not frozen, transactions can still
648 * occur here so don't bother flushing the buftarg (i.e
649 * SYNC_QUIESCE) because it'll just get dirty again.
651 flags = SYNC_DATA_QUIESCE;
655 error = xfs_sync(mp, flags);
658 if (unlikely(laptop_mode)) {
659 int prev_sync_seq = mp->m_sync_seq;
662 * The disk must be active because we're syncing.
663 * We schedule xfssyncd now (now that the disk is
664 * active) instead of later (when it might not be).
666 wake_up_process(mp->m_sync_task);
668 * We have to wait for the sync iteration to complete.
669 * If we don't, the disk activity caused by the sync
670 * will come after the sync is completed, and that
671 * triggers another sync from laptop mode.
673 wait_event(mp->m_wait_single_sync_task,
674 mp->m_sync_seq != prev_sync_seq);
682 struct dentry *dentry,
683 struct kstatfs *statp)
685 struct xfs_mount *mp = XFS_M(dentry->d_sb);
686 xfs_sb_t *sbp = &mp->m_sb;
687 __uint64_t fakeinos, id;
690 statp->f_type = XFS_SB_MAGIC;
691 statp->f_namelen = MAXNAMELEN - 1;
693 id = huge_encode_dev(mp->m_ddev_targp->bt_dev);
694 statp->f_fsid.val[0] = (u32)id;
695 statp->f_fsid.val[1] = (u32)(id >> 32);
697 xfs_icsb_sync_counters_flags(mp, XFS_ICSB_LAZY_COUNT);
699 spin_lock(&mp->m_sb_lock);
700 statp->f_bsize = sbp->sb_blocksize;
701 lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0;
702 statp->f_blocks = sbp->sb_dblocks - lsize;
703 statp->f_bfree = statp->f_bavail =
704 sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
705 fakeinos = statp->f_bfree << sbp->sb_inopblog;
707 fakeinos += mp->m_inoadd;
710 MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER);
715 statp->f_files = min_t(typeof(statp->f_files),
718 statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree);
719 spin_unlock(&mp->m_sb_lock);
721 XFS_QM_DQSTATVFS(XFS_I(dentry->d_inode), statp);
727 struct super_block *sb,
731 struct xfs_mount *mp = XFS_M(sb);
732 struct xfs_mount_args *args = xfs_args_allocate(sb, 0);
735 error = xfs_parseargs(mp, options, args, 1);
737 error = xfs_mntupdate(mp, flags, args);
738 kmem_free(args, sizeof(*args));
743 * Second stage of a freeze. The data is already frozen so we only
744 * need to take care of themetadata. Once that's done write a dummy
745 * record to dirty the log in case of a crash while frozen.
749 struct super_block *sb)
751 struct xfs_mount *mp = XFS_M(sb);
753 xfs_attr_quiesce(mp);
754 xfs_fs_log_dummy(mp);
760 struct vfsmount *mnt)
762 return -xfs_showargs(XFS_M(mnt->mnt_sb), m);
767 struct super_block *sb,
770 return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XQUOTASYNC, 0, NULL);
775 struct super_block *sb,
776 struct fs_quota_stat *fqs)
778 return -XFS_QM_QUOTACTL(XFS_M(sb), Q_XGETQSTAT, 0, (caddr_t)fqs);
783 struct super_block *sb,
787 return -XFS_QM_QUOTACTL(XFS_M(sb), op, 0, (caddr_t)&flags);
792 struct super_block *sb,
795 struct fs_disk_quota *fdq)
797 return -XFS_QM_QUOTACTL(XFS_M(sb),
798 (type == USRQUOTA) ? Q_XGETQUOTA :
799 ((type == GRPQUOTA) ? Q_XGETGQUOTA :
800 Q_XGETPQUOTA), id, (caddr_t)fdq);
805 struct super_block *sb,
808 struct fs_disk_quota *fdq)
810 return -XFS_QM_QUOTACTL(XFS_M(sb),
811 (type == USRQUOTA) ? Q_XSETQLIM :
812 ((type == GRPQUOTA) ? Q_XSETGQLIM :
813 Q_XSETPQLIM), id, (caddr_t)fdq);
818 struct super_block *sb,
822 struct inode *rootvp;
823 struct xfs_mount *mp = NULL;
824 struct xfs_mount_args *args = xfs_args_allocate(sb, silent);
827 mp = xfs_mount_init();
829 INIT_LIST_HEAD(&mp->m_sync_list);
830 spin_lock_init(&mp->m_sync_lock);
831 init_waitqueue_head(&mp->m_wait_single_sync_task);
836 if (sb->s_flags & MS_RDONLY)
837 mp->m_flags |= XFS_MOUNT_RDONLY;
839 error = xfs_parseargs(mp, (char *)data, args, 0);
843 sb_min_blocksize(sb, BBSIZE);
844 sb->s_export_op = &xfs_export_operations;
845 sb->s_qcop = &xfs_quotactl_operations;
846 sb->s_op = &xfs_super_operations;
848 error = xfs_mount(mp, args, NULL);
853 sb->s_magic = XFS_SB_MAGIC;
854 sb->s_blocksize = mp->m_sb.sb_blocksize;
855 sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1;
856 sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits);
858 set_posix_acl_flag(sb);
860 error = xfs_root(mp, &rootvp);
864 sb->s_root = d_alloc_root(vn_to_inode(rootvp));
869 if (is_bad_inode(sb->s_root->d_inode)) {
874 mp->m_sync_work.w_syncer = xfs_sync_worker;
875 mp->m_sync_work.w_mount = mp;
876 mp->m_sync_task = kthread_run(xfssyncd, mp, "xfssyncd");
877 if (IS_ERR(mp->m_sync_task)) {
878 error = -PTR_ERR(mp->m_sync_task);
882 xfs_itrace_exit(XFS_I(sb->s_root->d_inode));
884 kmem_free(args, sizeof(*args));
896 xfs_unmount(mp, 0, NULL);
899 kmem_free(args, sizeof(*args));
905 struct file_system_type *fs_type,
907 const char *dev_name,
909 struct vfsmount *mnt)
911 return get_sb_bdev(fs_type, flags, dev_name, data, xfs_fs_fill_super,
915 static struct super_operations xfs_super_operations = {
916 .alloc_inode = xfs_fs_alloc_inode,
917 .destroy_inode = xfs_fs_destroy_inode,
918 .write_inode = xfs_fs_write_inode,
919 .clear_inode = xfs_fs_clear_inode,
920 .put_super = xfs_fs_put_super,
921 .write_super = xfs_fs_write_super,
922 .sync_fs = xfs_fs_sync_super,
923 .write_super_lockfs = xfs_fs_lockfs,
924 .statfs = xfs_fs_statfs,
925 .remount_fs = xfs_fs_remount,
926 .show_options = xfs_fs_show_options,
929 static struct quotactl_ops xfs_quotactl_operations = {
930 .quota_sync = xfs_fs_quotasync,
931 .get_xstate = xfs_fs_getxstate,
932 .set_xstate = xfs_fs_setxstate,
933 .get_xquota = xfs_fs_getxquota,
934 .set_xquota = xfs_fs_setxquota,
937 static struct file_system_type xfs_fs_type = {
938 .owner = THIS_MODULE,
940 .get_sb = xfs_fs_get_sb,
941 .kill_sb = kill_block_super,
942 .fs_flags = FS_REQUIRES_DEV,
950 static char message[] __initdata = KERN_INFO \
951 XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled\n";
957 error = xfs_init_zones();
961 error = xfs_buf_init();
970 error = register_filesystem(&xfs_fs_type);
989 unregister_filesystem(&xfs_fs_type);
996 module_init(init_xfs_fs);
997 module_exit(exit_xfs_fs);
999 MODULE_AUTHOR("Silicon Graphics, Inc.");
1000 MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled");
1001 MODULE_LICENSE("GPL");