slub: remove kmemcg id from create_unique_id

This function is never called for memcg caches, because they are unmergeable, so remove the dead code. Signed-off-by: Vladimir Davydov <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Johannes Weiner <[email protected]> Cc: Christoph Lameter <[email protected]> Reviewed-by: Pekka Enberg <[email protected]> Cc: David Rientjes <[email protected]> Cc: Joonsoo Kim <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
fracktal · Aug 7, 2014 · aee52ca · aee52ca
1 parent 9ef0a0f
commit aee52ca
Showing 1 changed file with 0 additions and 6 deletions.
diff --git a/mm/slub.c b/mm/slub.c
@@ -5128,12 +5128,6 @@ static char *create_unique_id(struct kmem_cache *s)
 		*p++ = '-';
 	p += sprintf(p, "%07d", s->size);
 
-#ifdef CONFIG_MEMCG_KMEM
-	if (!is_root_cache(s))
-		p += sprintf(p, "-%08d",
-				memcg_cache_id(s->memcg_params->memcg));
-#endif
-
 	BUG_ON(p > name + ID_STR_LENGTH - 1);
 	return name;
 }