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Tue, 13 Oct 2020 08:36:30 -0700 (PDT) From: Muchun Song To: hannes@cmpxchg.org, mhocko@kernel.org, vdavydov.dev@gmail.com, akpm@linux-foundation.org, cl@linux.com, penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, shakeelb@google.com, guro@fb.com, vbabka@suse.cz, laoar.shao@gmail.com, songmuchun@bytedance.com, chris@chrisdown.name Cc: linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH] mm: memcontrol: Remove unused mod_memcg_obj_state() Date: Tue, 13 Oct 2020 23:35:04 +0800 Message-Id: <20201013153504.92602-1-songmuchun@bytedance.com> X-Mailer: git-send-email 2.21.0 (Apple Git-122) MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.005717, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Since commit: 991e7673859e ("mm: memcontrol: account kernel stack per node") There is no user of the mod_memcg_obj_state(). This patch just remove it. Also rework type of the idx parameter of the mod_objcg_state() from int to enum node_stat_item. Signed-off-by: Muchun Song --- include/linux/memcontrol.h | 6 ------ mm/memcontrol.c | 11 ----------- mm/slab.h | 4 ++-- 3 files changed, 2 insertions(+), 19 deletions(-) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index a1395b584947..d7e339bf72dc 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -795,8 +795,6 @@ void __mod_lruvec_state(struct lruvec *lruvec, enum n= ode_stat_item idx, int val); void __mod_lruvec_slab_state(void *p, enum node_stat_item idx, int val); =20 -void mod_memcg_obj_state(void *p, int idx, int val); - static inline void mod_lruvec_slab_state(void *p, enum node_stat_item id= x, int val) { @@ -1245,10 +1243,6 @@ static inline void mod_lruvec_slab_state(void *p, = enum node_stat_item idx, mod_node_page_state(page_pgdat(page), idx, val); } =20 -static inline void mod_memcg_obj_state(void *p, int idx, int val) -{ -} - static inline unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order, gfp_t gfp_mask, diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 2124ded698b2..1337775b04f3 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -885,17 +885,6 @@ void __mod_lruvec_slab_state(void *p, enum node_stat= _item idx, int val) rcu_read_unlock(); } =20 -void mod_memcg_obj_state(void *p, int idx, int val) -{ - struct mem_cgroup *memcg; - - rcu_read_lock(); - memcg =3D mem_cgroup_from_obj(p); - if (memcg) - mod_memcg_state(memcg, idx, val); - rcu_read_unlock(); -} - /** * __count_memcg_events - account VM events in a cgroup * @memcg: the memory cgroup diff --git a/mm/slab.h b/mm/slab.h index 4a24e1702923..725a0bb8b317 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -204,7 +204,7 @@ ssize_t slabinfo_write(struct file *file, const char = __user *buffer, void __kmem_cache_free_bulk(struct kmem_cache *, size_t, void **); int __kmem_cache_alloc_bulk(struct kmem_cache *, gfp_t, size_t, void **)= ; =20 -static inline int cache_vmstat_idx(struct kmem_cache *s) +static inline enum node_stat_item cache_vmstat_idx(struct kmem_cache *s) { return (s->flags & SLAB_RECLAIM_ACCOUNT) ? NR_SLAB_RECLAIMABLE_B : NR_SLAB_UNRECLAIMABLE_B; @@ -294,7 +294,7 @@ static inline struct obj_cgroup *memcg_slab_pre_alloc= _hook(struct kmem_cache *s, =20 static inline void mod_objcg_state(struct obj_cgroup *objcg, struct pglist_data *pgdat, - int idx, int nr) + enum node_stat_item idx, int nr) { struct mem_cgroup *memcg; struct lruvec *lruvec; --=20 2.20.1