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_IUNLINK)
196 inode->i_flags |= S_IUNLINK;
198 inode->i_flags &= ~S_IUNLINK;
199 if (ip->i_d.di_flags & XFS_DIFLAG_BARRIER)
200 inode->i_flags |= S_BARRIER;
202 inode->i_flags &= ~S_BARRIER;
203 if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
204 inode->i_flags |= S_APPEND;
206 inode->i_flags &= ~S_APPEND;
207 if (ip->i_d.di_flags & XFS_DIFLAG_SYNC)
208 inode->i_flags |= S_SYNC;
210 inode->i_flags &= ~S_SYNC;
211 if (ip->i_d.di_flags & XFS_DIFLAG_NOATIME)
212 inode->i_flags |= S_NOATIME;
214 inode->i_flags &= ~S_NOATIME;
215 vp->v_flag &= ~VMODIFIED;
219 xfs_initialize_vnode(
222 bhv_desc_t *inode_bhv,
225 xfs_inode_t *ip = XFS_BHVTOI(inode_bhv);
226 struct inode *inode = LINVFS_GET_IP(vp);
228 if (!inode_bhv->bd_vobj) {
229 vp->v_vfsp = bhvtovfs(bdp);
230 bhv_desc_init(inode_bhv, ip, vp, &xfs_vnodeops);
231 bhv_insert(VN_BHV_HEAD(vp), inode_bhv);
235 * We need to set the ops vectors, and unlock the inode, but if
236 * we have been called during the new inode create process, it is
237 * too early to fill in the Linux inode. We will get called a
238 * second time once the inode is properly set up, and then we can
241 if (ip->i_d.di_mode != 0 && unlock && (inode->i_state & I_NEW)) {
242 vp->v_type = IFTOVT(ip->i_d.di_mode);
243 xfs_revalidate_inode(XFS_BHVTOM(bdp), vp, ip);
244 xfs_set_inodeops(inode);
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 STATIC struct inode *
277 struct super_block *sb)
281 vp = (vnode_t *)kmem_cache_alloc(linvfs_inode_zone,
282 kmem_flags_convert(KM_SLEEP));
285 return LINVFS_GET_IP(vp);
289 linvfs_destroy_inode(
292 kmem_cache_free(linvfs_inode_zone, LINVFS_GET_VP(inode));
298 unsigned int gfp_mask)
302 pages = kmem_zone_shrink(linvfs_inode_zone);
303 pages += kmem_zone_shrink(xfs_inode_zone);
310 kmem_cache_t *cachep,
313 vnode_t *vp = (vnode_t *)data;
315 if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
316 SLAB_CTOR_CONSTRUCTOR)
317 inode_init_once(LINVFS_GET_IP(vp));
321 init_inodecache( void )
323 linvfs_inode_zone = kmem_cache_create("linvfs_icache",
324 sizeof(vnode_t), 0, SLAB_RECLAIM_ACCOUNT,
326 if (linvfs_inode_zone == NULL)
332 destroy_inodecache( void )
334 if (kmem_cache_destroy(linvfs_inode_zone))
335 printk(KERN_WARNING "%s: cache still in use!\n", __FUNCTION__);
339 * Attempt to flush the inode, this will actually fail
340 * if the inode is pinned, but we dirty the inode again
341 * at the point when it is unpinned after a log write,
342 * since this is when the inode itself becomes flushable.
349 vnode_t *vp = LINVFS_GET_VP(inode);
350 int error = 0, flags = FLUSH_INODE;
353 vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
356 VOP_IFLUSH(vp, flags, error);
366 vnode_t *vp = LINVFS_GET_VP(inode);
370 vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
372 * Do all our cleanup, and remove this vnode.
380 * Enqueue a work item to be picked up by the vfs xfssyncd thread.
381 * Doing this has two advantages:
382 * - It saves on stack space, which is tight in certain situations
383 * - It can be used (with care) as a mechanism to avoid deadlocks.
384 * Flushing while allocating in a full filesystem requires both.
387 xfs_syncd_queue_work(
390 void (*syncer)(vfs_t *, void *))
392 vfs_sync_work_t *work;
394 work = kmem_alloc(sizeof(struct vfs_sync_work), KM_SLEEP);
395 INIT_LIST_HEAD(&work->w_list);
396 work->w_syncer = syncer;
399 spin_lock(&vfs->vfs_sync_lock);
400 list_add_tail(&work->w_list, &vfs->vfs_sync_list);
401 spin_unlock(&vfs->vfs_sync_lock);
402 wake_up_process(vfs->vfs_sync_task);
406 * Flush delayed allocate data, attempting to free up reserved space
407 * from existing allocations. At this point a new allocation attempt
408 * has failed with ENOSPC and we are in the process of scratching our
409 * heads, looking about for more room...
412 xfs_flush_inode_work(
416 filemap_flush(((struct inode *)inode)->i_mapping);
417 iput((struct inode *)inode);
424 struct inode *inode = LINVFS_GET_IP(XFS_ITOV(ip));
425 struct vfs *vfs = XFS_MTOVFS(ip->i_mount);
428 xfs_syncd_queue_work(vfs, inode, xfs_flush_inode_work);
433 * This is the "bigger hammer" version of xfs_flush_inode_work...
434 * (IOW, "If at first you don't succeed, use a Bigger Hammer").
437 xfs_flush_device_work(
441 sync_blockdev(vfs->vfs_super->s_bdev);
442 iput((struct inode *)inode);
449 struct inode *inode = LINVFS_GET_IP(XFS_ITOV(ip));
450 struct vfs *vfs = XFS_MTOVFS(ip->i_mount);
453 xfs_syncd_queue_work(vfs, inode, xfs_flush_device_work);
455 xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC);
458 #define SYNCD_FLAGS (SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR)
466 if (!(vfsp->vfs_flag & VFS_RDONLY))
467 VFS_SYNC(vfsp, SYNCD_FLAGS, NULL, error);
468 vfsp->vfs_sync_seq++;
470 wake_up(&vfsp->vfs_wait_single_sync_task);
478 vfs_t *vfsp = (vfs_t *) arg;
479 struct list_head tmp;
480 struct vfs_sync_work *work, *n;
482 daemonize("xfssyncd");
484 vfsp->vfs_sync_work.w_vfs = vfsp;
485 vfsp->vfs_sync_work.w_syncer = vfs_sync_worker;
486 vfsp->vfs_sync_task = current;
488 wake_up(&vfsp->vfs_wait_sync_task);
490 INIT_LIST_HEAD(&tmp);
491 timeleft = (xfs_syncd_centisecs * HZ) / 100;
493 set_current_state(TASK_INTERRUPTIBLE);
494 timeleft = schedule_timeout(timeleft);
496 if (current->flags & PF_FREEZE)
497 refrigerator(PF_FREEZE);
498 if (vfsp->vfs_flag & VFS_UMOUNT)
501 spin_lock(&vfsp->vfs_sync_lock);
503 * We can get woken by laptop mode, to do a sync -
504 * that's the (only!) case where the list would be
505 * empty with time remaining.
507 if (!timeleft || list_empty(&vfsp->vfs_sync_list)) {
509 timeleft = (xfs_syncd_centisecs * HZ) / 100;
510 INIT_LIST_HEAD(&vfsp->vfs_sync_work.w_list);
511 list_add_tail(&vfsp->vfs_sync_work.w_list,
512 &vfsp->vfs_sync_list);
514 list_for_each_entry_safe(work, n, &vfsp->vfs_sync_list, w_list)
515 list_move(&work->w_list, &tmp);
516 spin_unlock(&vfsp->vfs_sync_lock);
518 list_for_each_entry_safe(work, n, &tmp, w_list) {
519 (*work->w_syncer)(vfsp, work->w_data);
520 list_del(&work->w_list);
521 if (work == &vfsp->vfs_sync_work)
523 kmem_free(work, sizeof(struct vfs_sync_work));
527 vfsp->vfs_sync_task = NULL;
529 wake_up(&vfsp->vfs_wait_sync_task);
540 pid = kernel_thread(xfssyncd, (void *) vfsp,
541 CLONE_VM | CLONE_FS | CLONE_FILES);
544 wait_event(vfsp->vfs_wait_sync_task, vfsp->vfs_sync_task);
552 vfsp->vfs_flag |= VFS_UMOUNT;
555 wake_up_process(vfsp->vfs_sync_task);
556 wait_event(vfsp->vfs_wait_sync_task, !vfsp->vfs_sync_task);
561 struct super_block *sb)
563 vfs_t *vfsp = LINVFS_GET_VFS(sb);
566 linvfs_stop_syncd(vfsp);
567 VFS_SYNC(vfsp, SYNC_ATTR|SYNC_DELWRI, NULL, error);
569 VFS_UNMOUNT(vfsp, 0, NULL, error);
571 printk("XFS unmount got error %d\n", error);
572 printk("%s: vfsp/0x%p left dangling!\n", __FUNCTION__, vfsp);
576 vfs_deallocate(vfsp);
581 struct super_block *sb)
583 vfs_t *vfsp = LINVFS_GET_VFS(sb);
586 if (sb->s_flags & MS_RDONLY) {
587 sb->s_dirt = 0; /* paranoia */
590 /* Push the log and superblock a little */
591 VFS_SYNC(vfsp, SYNC_FSDATA, NULL, error);
597 struct super_block *sb,
600 vfs_t *vfsp = LINVFS_GET_VFS(sb);
602 int flags = SYNC_FSDATA;
607 VFS_SYNC(vfsp, flags, NULL, error);
610 if (unlikely(laptop_mode)) {
611 int prev_sync_seq = vfsp->vfs_sync_seq;
614 * The disk must be active because we're syncing.
615 * We schedule xfssyncd now (now that the disk is
616 * active) instead of later (when it might not be).
618 wake_up_process(vfsp->vfs_sync_task);
620 * We have to wait for the sync iteration to complete.
621 * If we don't, the disk activity caused by the sync
622 * will come after the sync is completed, and that
623 * triggers another sync from laptop mode.
625 wait_event(vfsp->vfs_wait_single_sync_task,
626 vfsp->vfs_sync_seq != prev_sync_seq);
634 struct super_block *sb,
635 struct kstatfs *statp)
637 vfs_t *vfsp = LINVFS_GET_VFS(sb);
640 VFS_STATVFS(vfsp, statp, NULL, error);
646 struct super_block *sb,
650 vfs_t *vfsp = LINVFS_GET_VFS(sb);
651 struct xfs_mount_args *args = xfs_args_allocate(sb);
654 VFS_PARSEARGS(vfsp, options, args, 1, error);
656 VFS_MNTUPDATE(vfsp, flags, args, error);
657 kmem_free(args, sizeof(*args));
663 struct super_block *sb)
665 VFS_FREEZE(LINVFS_GET_VFS(sb));
668 STATIC struct dentry *
670 struct dentry *child)
674 struct dentry *parent;
675 struct dentry dotdot;
677 dotdot.d_name.name = "..";
678 dotdot.d_name.len = 2;
679 dotdot.d_inode = NULL;
682 vp = LINVFS_GET_VP(child->d_inode);
683 VOP_LOOKUP(vp, &dotdot, &cvp, 0, NULL, NULL, error);
685 return ERR_PTR(-error);
687 parent = d_alloc_anon(LINVFS_GET_IP(cvp));
688 if (unlikely(!parent)) {
690 return ERR_PTR(-ENOMEM);
695 STATIC struct dentry *
697 struct super_block *sb,
702 struct dentry *result;
704 vfs_t *vfsp = LINVFS_GET_VFS(sb);
707 xfid.fid_len = sizeof(xfs_fid2_t) - sizeof(xfid.fid_len);
709 xfid.fid_gen = ((__u32 *)data)[1];
710 xfid.fid_ino = ((__u32 *)data)[0];
712 VFS_VGET(vfsp, &vp, (fid_t *)&xfid, error);
713 if (error || vp == NULL)
714 return ERR_PTR(-ESTALE) ;
716 inode = LINVFS_GET_IP(vp);
717 result = d_alloc_anon(inode);
720 return ERR_PTR(-ENOMEM);
728 struct vfsmount *mnt)
730 struct vfs *vfsp = LINVFS_GET_VFS(mnt->mnt_sb);
733 VFS_SHOWARGS(vfsp, m, error);
739 struct super_block *sb,
740 struct fs_quota_stat *fqs)
742 struct vfs *vfsp = LINVFS_GET_VFS(sb);
745 VFS_QUOTACTL(vfsp, Q_XGETQSTAT, 0, (caddr_t)fqs, error);
751 struct super_block *sb,
755 struct vfs *vfsp = LINVFS_GET_VFS(sb);
758 VFS_QUOTACTL(vfsp, op, 0, (caddr_t)&flags, error);
764 struct super_block *sb,
767 struct fs_disk_quota *fdq)
769 struct vfs *vfsp = LINVFS_GET_VFS(sb);
772 getmode = (type == GRPQUOTA) ? Q_XGETGQUOTA : Q_XGETQUOTA;
773 VFS_QUOTACTL(vfsp, getmode, id, (caddr_t)fdq, error);
779 struct super_block *sb,
782 struct fs_disk_quota *fdq)
784 struct vfs *vfsp = LINVFS_GET_VFS(sb);
787 setmode = (type == GRPQUOTA) ? Q_XSETGQLIM : Q_XSETQLIM;
788 VFS_QUOTACTL(vfsp, setmode, id, (caddr_t)fdq, error);
794 struct super_block *sb,
799 struct vfs *vfsp = vfs_allocate();
800 struct xfs_mount_args *args = xfs_args_allocate(sb);
801 struct kstatfs statvfs;
804 vfsp->vfs_super = sb;
805 LINVFS_SET_VFS(sb, vfsp);
806 if (sb->s_flags & MS_RDONLY)
807 vfsp->vfs_flag |= VFS_RDONLY;
808 bhv_insert_all_vfsops(vfsp);
810 VFS_PARSEARGS(vfsp, (char *)data, args, 0, error);
812 bhv_remove_all_vfsops(vfsp, 1);
816 sb_min_blocksize(sb, BBSIZE);
817 sb->s_export_op = &linvfs_export_ops;
818 sb->s_qcop = &linvfs_qops;
819 sb->s_op = &linvfs_sops;
821 VFS_MOUNT(vfsp, args, NULL, error);
823 bhv_remove_all_vfsops(vfsp, 1);
827 VFS_STATVFS(vfsp, &statvfs, NULL, error);
832 sb->s_magic = statvfs.f_type;
833 sb->s_blocksize = statvfs.f_bsize;
834 sb->s_blocksize_bits = ffs(statvfs.f_bsize) - 1;
835 sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits);
836 set_posix_acl_flag(sb);
838 VFS_ROOT(vfsp, &rootvp, error);
842 sb->s_root = d_alloc_root(LINVFS_GET_IP(rootvp));
847 if (is_bad_inode(sb->s_root->d_inode)) {
851 if ((error = linvfs_start_syncd(vfsp)))
853 vn_trace_exit(rootvp, __FUNCTION__, (inst_t *)__return_address);
855 kmem_free(args, sizeof(*args));
867 VFS_UNMOUNT(vfsp, 0, NULL, error2);
870 vfs_deallocate(vfsp);
871 kmem_free(args, sizeof(*args));
875 STATIC struct super_block *
877 struct file_system_type *fs_type,
879 const char *dev_name,
882 return get_sb_bdev(fs_type, flags, dev_name, data, linvfs_fill_super);
886 STATIC struct export_operations linvfs_export_ops = {
887 .get_parent = linvfs_get_parent,
888 .get_dentry = linvfs_get_dentry,
891 STATIC struct super_operations linvfs_sops = {
892 .alloc_inode = linvfs_alloc_inode,
893 .destroy_inode = linvfs_destroy_inode,
894 .write_inode = linvfs_write_inode,
895 .clear_inode = linvfs_clear_inode,
896 .put_super = linvfs_put_super,
897 .write_super = linvfs_write_super,
898 .sync_fs = linvfs_sync_super,
899 .write_super_lockfs = linvfs_freeze_fs,
900 .statfs = linvfs_statfs,
901 .remount_fs = linvfs_remount,
902 .show_options = linvfs_show_options,
905 STATIC struct quotactl_ops linvfs_qops = {
906 .get_xstate = linvfs_getxstate,
907 .set_xstate = linvfs_setxstate,
908 .get_xquota = linvfs_getxquota,
909 .set_xquota = linvfs_setxquota,
912 STATIC struct file_system_type xfs_fs_type = {
913 .owner = THIS_MODULE,
915 .get_sb = linvfs_get_sb,
916 .kill_sb = kill_block_super,
917 .fs_flags = FS_REQUIRES_DEV,
926 static char message[] __initdata = KERN_INFO \
927 XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled\n";
932 xfs_physmem = si.totalram;
936 error = init_inodecache();
938 goto undo_inodecache;
940 error = pagebuf_init();
949 xfs_inode_shaker = kmem_shake_register(xfs_inode_shake);
950 if (!xfs_inode_shaker) {
955 error = xfs_ioctl32_init();
959 error = register_filesystem(&xfs_fs_type);
962 XFS_DM_INIT(&xfs_fs_type);
969 kmem_shake_deregister(xfs_inode_shaker);
975 destroy_inodecache();
985 XFS_DM_EXIT(&xfs_fs_type);
986 unregister_filesystem(&xfs_fs_type);
988 kmem_shake_deregister(xfs_inode_shaker);
991 destroy_inodecache();
995 module_init(init_xfs_fs);
996 module_exit(exit_xfs_fs);
998 MODULE_AUTHOR("Silicon Graphics, Inc.");
999 MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled");
1000 MODULE_LICENSE("GPL");