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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: Christoph Lameter (Ampere) <cl@linux.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
This commit is contained in:
Chengming Zhou 2024-01-23 09:33:30 +00:00 committed by Vlastimil Babka
parent 90b1e56641
commit a6def11b6d
1 changed files with 0 additions and 4 deletions
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4
mm/slub.c
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@ -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 @@ slab_empty:
*/
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);