namespace.c: get rid of mnt_ghosts

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/pnode.c b/fs/pnode.c
index 9af0df1..3cfd48c 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -278,8 +278,7 @@
  */
 static inline int do_refcount_check(struct mount *mnt, int count)
 {
-	int mycount = mnt_get_count(mnt) - mnt->mnt_ghosts;
-	return (mycount > count);
+	return mnt_get_count(mnt) > count;
 }
 
 /*