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author | Muchun Song <songmuchun@bytedance.com> | 2022-01-14 14:05:29 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-15 16:30:27 +0200 |
commit | 17c17367758059930246dde937cc7da9b8f3549e (patch) | |
tree | aa5b46e87b1da4a8008871498fa0b44fe5e3f785 | |
parent | 3795f46b83c66a2e4545460dec74c80b839faafe (diff) | |
download | lwn-17c17367758059930246dde937cc7da9b8f3549e.tar.gz lwn-17c17367758059930246dde937cc7da9b8f3549e.zip |
mm: memcontrol: make cgroup_memory_nokmem static
Commit 494c1dfe855e ("mm: memcg/slab: create a new set of kmalloc-cg-<n>
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 <songmuchun@bytedance.com>
Acked-by: Chris Down <chris@chrisdown.name>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r-- | mm/internal.h | 5 | ||||
-rw-r--r-- | mm/memcontrol.c | 2 | ||||
-rw-r--r-- | 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 @@ -158,11 +158,6 @@ 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; } |