linux-hardening - [PATCH v2 05/21] mm/memcontrol: remove CONFIG

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Date: Mon, 20 Nov 2023 19:34:16 +0100
From: Vlastimil Babka <vbabka@...e.cz>
To: David Rientjes <rientjes@...gle.com>, Christoph Lameter <cl@...ux.com>, 
 Pekka Enberg <penberg@...nel.org>, Joonsoo Kim <iamjoonsoo.kim@....com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, 
 Hyeonggon Yoo <42.hyeyoo@...il.com>, 
 Roman Gushchin <roman.gushchin@...ux.dev>, 
 Andrey Ryabinin <ryabinin.a.a@...il.com>, 
 Alexander Potapenko <glider@...gle.com>, 
 Andrey Konovalov <andreyknvl@...il.com>, Dmitry Vyukov <dvyukov@...gle.com>, 
 Vincenzo Frascino <vincenzo.frascino@....com>, 
 Marco Elver <elver@...gle.com>, Johannes Weiner <hannes@...xchg.org>, 
 Michal Hocko <mhocko@...nel.org>, Shakeel Butt <shakeelb@...gle.com>, 
 Muchun Song <muchun.song@...ux.dev>, Kees Cook <keescook@...omium.org>, 
 linux-mm@...ck.org, linux-kernel@...r.kernel.org, 
 kasan-dev@...glegroups.com, cgroups@...r.kernel.org, 
 linux-hardening@...r.kernel.org, Michal Hocko <mhocko@...e.com>, 
 Vlastimil Babka <vbabka@...e.cz>
Subject: [PATCH v2 05/21] mm/memcontrol: remove CONFIG_SLAB #ifdef guards

With SLAB removed, these are never true anymore so we can clean up.

Reviewed-by: Kees Cook <keescook@...omium.org>
Acked-by: Michal Hocko <mhocko@...e.com>
Signed-off-by: Vlastimil Babka <vbabka@...e.cz>
---
 mm/memcontrol.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 774bd6e21e27..947fb50eba31 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5149,7 +5149,7 @@ static ssize_t memcg_write_event_control(struct kernfs_open_file *of,
 	return ret;
 }
 
-#if defined(CONFIG_MEMCG_KMEM) && (defined(CONFIG_SLAB) || defined(CONFIG_SLUB_DEBUG))
+#if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_SLUB_DEBUG)
 static int mem_cgroup_slab_show(struct seq_file *m, void *p)
 {
 	/*
@@ -5258,8 +5258,7 @@ static struct cftype mem_cgroup_legacy_files[] = {
 		.write = mem_cgroup_reset,
 		.read_u64 = mem_cgroup_read_u64,
 	},
-#if defined(CONFIG_MEMCG_KMEM) && \
-	(defined(CONFIG_SLAB) || defined(CONFIG_SLUB_DEBUG))
+#if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_SLUB_DEBUG)
 	{
 		.name = "kmem.slabinfo",
 		.seq_show = mem_cgroup_slab_show,

-- 
2.42.1