From 17c17367758059930246dde937cc7da9b8f3549e Mon Sep 17 00:00:00 2001 From: Muchun Song Date: Fri, 14 Jan 2022 14:05:29 -0800 Subject: [PATCH] mm: memcontrol: make cgroup_memory_nokmem static Commit 494c1dfe855e ("mm: memcg/slab: create a new set of kmalloc-cg- caches") makes cgroup_memory_nokmem global, however, it is unnecessary because there is already a function mem_cgroup_kmem_disabled() which exports it. Just make it static and replace it with mem_cgroup_kmem_disabled() in mm/slab_common.c. Link: https://lkml.kernel.org/r/20211109065418.21693-1-songmuchun@bytedance.com Signed-off-by: Muchun Song Acked-by: Chris Down Acked-by: Vlastimil Babka Cc: Johannes Weiner Cc: Michal Hocko Cc: Vladimir Davydov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/internal.h | 5 ----- mm/memcontrol.c | 2 +- mm/slab_common.c | 2 +- 3 files changed, 2 insertions(+), 7 deletions(-) diff --git a/mm/internal.h b/mm/internal.h index 3b79a5c9427a..bdac62e1eca7 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -157,11 +157,6 @@ extern void reclaim_throttle(pg_data_t *pgdat, enum vmscan_throttle_state reason */ extern pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address); -/* - * in mm/memcontrol.c: - */ -extern bool cgroup_memory_nokmem; - /* * in mm/page_alloc.c */ diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 3542237c833f..bfe9bdec192b 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -84,7 +84,7 @@ EXPORT_PER_CPU_SYMBOL_GPL(int_active_memcg); static bool cgroup_memory_nosocket __ro_after_init; /* Kernel memory accounting disabled? */ -bool cgroup_memory_nokmem __ro_after_init; +static bool cgroup_memory_nokmem __ro_after_init; /* Whether the swap controller is active */ #ifdef CONFIG_MEMCG_SWAP diff --git a/mm/slab_common.c b/mm/slab_common.c index f02c32bd05ab..1f75bd4e95d6 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -844,7 +844,7 @@ new_kmalloc_cache(int idx, enum kmalloc_cache_type type, slab_flags_t flags) if (type == KMALLOC_RECLAIM) { flags |= SLAB_RECLAIM_ACCOUNT; } else if (IS_ENABLED(CONFIG_MEMCG_KMEM) && (type == KMALLOC_CGROUP)) { - if (cgroup_memory_nokmem) { + if (mem_cgroup_kmem_disabled()) { kmalloc_caches[type][idx] = kmalloc_caches[KMALLOC_NORMAL][idx]; return; }