[PATCH] vfs: propagate mnt_flags into do_loopback/vfsmount

The mnt_flags are propagated into do_loopback(), so that they can be stored
with the vfsmount

Signed-off-by: Herbert Poetzl <herbert@13thfloor.at>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/fs/namespace.c b/fs/namespace.c
index bf478addb852..2c5f1f80bdc2 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -899,11 +899,13 @@ static int do_change_type(struct nameidata *nd, int flag)
 /*
  * do loopback mount.
  */
-static int do_loopback(struct nameidata *nd, char *old_name, int recurse)
+static int do_loopback(struct nameidata *nd, char *old_name, unsigned long flags, int mnt_flags)
 {
         struct nameidata old_nd;
         struct vfsmount *mnt = NULL;
+        int recurse = flags & MS_REC;
         int err = mount_is_safe(nd);
+
         if (err)
                 return err;
         if (!old_name || !*old_name)
@@ -937,6 +939,7 @@ static int do_loopback(struct nameidata *nd, char *old_name, int recurse)
                 spin_unlock(&vfsmount_lock);
                 release_mounts(&umount_list);
         }
+        mnt->mnt_flags = mnt_flags;
 
 out:
         up_write(&namespace_sem);
@@ -1350,7 +1353,7 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
                 retval = do_remount(&nd, flags & ~MS_REMOUNT, mnt_flags,
                                     data_page);
         else if (flags & MS_BIND)
-                retval = do_loopback(&nd, dev_name, flags & MS_REC);
+                retval = do_loopback(&nd, dev_name, flags, mnt_flags);
         else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE))
                 retval = do_change_type(&nd, flags);
         else if (flags & MS_MOVE)