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path: root/fs/xfs/linux-2.6/xfs_super.c
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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_super.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_super.c23
1 files changed, 21 insertions, 2 deletions
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 5c7144bc3106..a3ecdf442465 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -52,6 +52,7 @@
#include "xfs_version.h"
#include "xfs_log_priv.h"
#include "xfs_trans_priv.h"
+#include "xfs_filestream.h"
#include <linux/namei.h>
#include <linux/init.h>
@@ -1220,8 +1221,26 @@ xfs_fs_remount(
int error;
error = xfs_parseargs(mp, options, args, 1);
- if (!error)
- error = xfs_mntupdate(mp, flags, args);
+ if (error)
+ goto out_free_args;
+
+ if (!(*flags & MS_RDONLY)) { /* rw/ro -> rw */
+ if (mp->m_flags & XFS_MOUNT_RDONLY)
+ mp->m_flags &= ~XFS_MOUNT_RDONLY;
+ if (args->flags & XFSMNT_BARRIER) {
+ mp->m_flags |= XFS_MOUNT_BARRIER;
+ xfs_mountfs_check_barriers(mp);
+ } else {
+ mp->m_flags &= ~XFS_MOUNT_BARRIER;
+ }
+ } else if (!(mp->m_flags & XFS_MOUNT_RDONLY)) { /* rw -> ro */
+ xfs_filestream_flush(mp);
+ xfs_sync(mp, SYNC_DATA_QUIESCE);
+ xfs_attr_quiesce(mp);
+ mp->m_flags |= XFS_MOUNT_RDONLY;
+ }
+
+ out_free_args:
kmem_free(args);
return -error;
}