[PATCH] mm/slub: remove useless kmem_cache_debug

From: wuyun.wu
Date: Mon Aug 10 2020 - 04:08:40 EST


From: Abel Wu <wuyun.wu@xxxxxxxxxx>

The commit below is incomplete, as it didn't handle the add_full() part.
commit a4d3f8916c65 ("slub: remove useless kmem_cache_debug() before remove_full()")

Signed-off-by: Abel Wu <wuyun.wu@xxxxxxxxxx>
---
mm/slub.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/slub.c b/mm/slub.c
index fe81773..0b021b7 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2182,7 +2182,8 @@ static void deactivate_slab(struct kmem_cache *s, struct page *page,
}
} else {
m = M_FULL;
- if (kmem_cache_debug(s) && !lock) {
+#ifdef CONFIG_SLUB_DEBUG
+ if (!lock) {
lock = 1;
/*
* This also ensures that the scanning of full
@@ -2191,6 +2192,7 @@ static void deactivate_slab(struct kmem_cache *s, struct page *page,
*/
spin_lock(&n->list_lock);
}
+#endif
}

if (l != m) {
--
1.8.3.1