The patch titled Subject: mm/slab_common: don't check for duplicate cache names has been removed from the -mm tree. Its filename was mm-slab_common-dont-check-for-duplicate-cache-names.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Mikulas Patocka <mpatocka@xxxxxxxxxx> Subject: mm/slab_common: don't check for duplicate cache names The SLUB cache merges caches with the same size and alignment and there was long standing bug with this behavior: * create the cache named "foo" * create the cache named "bar" (which is merged with "foo") * delete the cache named "foo" (but it stays allocated because "bar" uses it) * create the cache named "foo" again - it fails because the name "foo" is already used That bug was fixed in commit 694617474e33b860 ("slab_common: fix the check for duplicate slab names") by not warning on duplicate cache names when the SLUB subsystem is used. Recently, cache merging was implemented the with SLAB subsystem too, in 12220dea07f1a ("mm/slab: support slab merge")). Therefore we need stop checking for duplicate names even for the SLAB subsystem. This patch fixes the bug by removing the check. Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx> Acked-by: Christoph Lameter <cl@xxxxxxxxx> Cc: Pekka Enberg <penberg@xxxxxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/slab_common.c | 10 ---------- 1 file changed, 10 deletions(-) diff -puN mm/slab_common.c~mm-slab_common-dont-check-for-duplicate-cache-names mm/slab_common.c --- a/mm/slab_common.c~mm-slab_common-dont-check-for-duplicate-cache-names +++ a/mm/slab_common.c @@ -93,16 +93,6 @@ static int kmem_cache_sanity_check(const s->object_size); continue; } - -#if !defined(CONFIG_SLUB) - if (!strcmp(s->name, name)) { - pr_err("%s (%s): Cache name already exists.\n", - __func__, name); - dump_stack(); - s = NULL; - return -EINVAL; - } -#endif } WARN_ON(strchr(name, ' ')); /* It confuses parsers */ _ Patches currently in -mm which might be from mpatocka@xxxxxxxxxx are origin.patch linux-next.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html