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-rw-r--r--fs/xfs/xfs_vfsops.c27
1 files changed, 9 insertions, 18 deletions
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
index f0e09ca14139..36ea1b2094f2 100644
--- a/fs/xfs/xfs_vfsops.c
+++ b/fs/xfs/xfs_vfsops.c
@@ -669,31 +669,22 @@ xfs_mntupdate(
669 xfs_mount_t *mp = XFS_BHVTOM(bdp); 669 xfs_mount_t *mp = XFS_BHVTOM(bdp);
670 int error; 670 int error;
671 671
672 if (args->flags & XFSMNT_BARRIER) 672 if (!(*flags & MS_RDONLY)) { /* rw/ro -> rw */
673 mp->m_flags |= XFS_MOUNT_BARRIER; 673 if (vfsp->vfs_flag & VFS_RDONLY)
674 else 674 vfsp->vfs_flag &= ~VFS_RDONLY;
675 mp->m_flags &= ~XFS_MOUNT_BARRIER; 675 if (args->flags & XFSMNT_BARRIER) {
676 676 mp->m_flags |= XFS_MOUNT_BARRIER;
677 if ((vfsp->vfs_flag & VFS_RDONLY) &&
678 !(*flags & MS_RDONLY)) {
679 vfsp->vfs_flag &= ~VFS_RDONLY;
680
681 if (args->flags & XFSMNT_BARRIER)
682 xfs_mountfs_check_barriers(mp); 677 xfs_mountfs_check_barriers(mp);
683 } 678 } else {
684 679 mp->m_flags &= ~XFS_MOUNT_BARRIER;
685 if (!(vfsp->vfs_flag & VFS_RDONLY) && 680 }
686 (*flags & MS_RDONLY)) { 681 } else if (!(vfsp->vfs_flag & VFS_RDONLY)) { /* rw -> ro */
687 VFS_SYNC(vfsp, SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR, NULL, error); 682 VFS_SYNC(vfsp, SYNC_FSDATA|SYNC_BDFLUSH|SYNC_ATTR, NULL, error);
688
689 xfs_quiesce_fs(mp); 683 xfs_quiesce_fs(mp);
690
691 /* Ok now write out an unmount record */
692 xfs_log_unmount_write(mp); 684 xfs_log_unmount_write(mp);
693 xfs_unmountfs_writesb(mp); 685 xfs_unmountfs_writesb(mp);
694 vfsp->vfs_flag |= VFS_RDONLY; 686 vfsp->vfs_flag |= VFS_RDONLY;
695 } 687 }
696
697 return 0; 688 return 0;
698} 689}
699 690