namecache_clobber() should be insert() because we just did a lookup in the only caller and the directory is locked for lookup.  I did two way self build and kernel build for > 30 minutes.
namecache_clobber() should be insert() because we just did a lookup in the
only caller and the directory is locked for lookup.  I did two way self
build and kernel build for > 30 minutes.

pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable