[PATCH] remove unused lookup_mnt export

lookup_mnt() is entirely unused outside of deep vfs internals, remove the
export since it's quite a low level interface anyway
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/namespace.c

@@ -106,8 +106,6 @@ struct vfsmount *lookup_mnt(struct vfsmount *mnt, struct dentry *dentry)
 	return found;
 }
 
-EXPORT_SYMBOL(lookup_mnt);
-
 static inline int check_mnt(struct vfsmount *mnt)
 {
 	return mnt->mnt_namespace == current->namespace;