Commit a6def11b authored by Chengming Zhou's avatar Chengming Zhou Committed by Vlastimil Babka
Browse files

mm/slub: remove full list manipulation for non-debug slab 



Since debug slab is processed by free_to_partial_list(), and only debug
slab which has SLAB_STORE_USER flag would care about the full list, we
can remove these unrelated full list manipulations from __slab_free().

Acked-by: default avatarChristoph Lameter (Ampere) <cl@linux.com>
Reviewed-by: default avatarVlastimil Babka <vbabka@suse.cz>
Signed-off-by: default avatarChengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: default avatarVlastimil Babka <vbabka@suse.cz>
parent 90b1e566

mm/slub.c

+0 −4
Original line number Diff line number Diff line
@@ -4188,7 +4188,6 @@ static void __slab_free(struct kmem_cache *s, struct slab *slab, 
	 * then add it.

	 */

	if (!kmem_cache_has_cpu_partial(s) && unlikely(!prior)) {

		remove_full(s, n, slab);

		add_partial(n, slab, DEACTIVATE_TO_TAIL);

		stat(s, FREE_ADD_PARTIAL);

	}
@@ -4202,9 +4201,6 @@ static void __slab_free(struct kmem_cache *s, struct slab *slab, 
		 */

		remove_partial(n, slab);

		stat(s, FREE_REMOVE_PARTIAL);

	} else {

		/* Slab must be on the full list */

		remove_full(s, n, slab);

	}



	spin_unlock_irqrestore(&n->list_lock, flags);