[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>

diff --git a/fs/namespace.c b/fs/namespace.c
index bf478addb852b70c1ec036e33100f93031c5dc6b..2c5f1f80bdc28b868cb81aabecdae71bc9c6b480 100644 (file)
--- 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)