From: Roman Gushchin <guro@fb.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Christoph Lameter <cl@linux.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@kernel.org>,
Shakeel Butt <shakeelb@google.com>, <linux-mm@kvack.org>,
Vlastimil Babka <vbabka@suse.cz>, <kernel-team@fb.com>,
<linux-kernel@vger.kernel.org>, Roman Gushchin <guro@fb.com>
Subject: [PATCH v7 16/19] mm: memcg/slab: remove redundant check in memcg_accumulate_slabinfo()
Date: Tue, 23 Jun 2020 10:40:34 -0700 [thread overview]
Message-ID: <20200623174037.3951353-17-guro@fb.com> (raw)
In-Reply-To: <20200623174037.3951353-1-guro@fb.com>
memcg_accumulate_slabinfo() is never called with a non-root kmem_cache as
a first argument, so the is_root_cache(s) check is redundant and can be
removed without any functional change.
Signed-off-by: Roman Gushchin <guro@fb.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
---
mm/slab_common.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 0618d3595c08..e546778030a2 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -1087,9 +1087,6 @@ memcg_accumulate_slabinfo(struct kmem_cache *s, struct slabinfo *info)
struct kmem_cache *c;
struct slabinfo sinfo;
- if (!is_root_cache(s))
- return;
-
c = memcg_cache(s);
if (c) {
memset(&sinfo, 0, sizeof(sinfo));
--
2.26.2
next prev parent reply other threads:[~2020-06-23 17:41 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 17:40 [PATCH v7 00/19] The new cgroup slab memory controller Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 01/19] mm: memcg: factor out memcg- and lruvec-level changes out of __mod_lruvec_state() Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 02/19] mm: memcg: prepare for byte-sized vmstat items Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 03/19] mm: memcg: convert vmstat slab counters to bytes Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 04/19] mm: slub: implement SLUB version of obj_to_index() Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 05/19] mm: memcontrol: decouple reference counting from page accounting Roman Gushchin
2020-08-03 9:00 ` Michal Hocko
2020-08-03 15:03 ` Johannes Weiner
2020-08-03 15:08 ` Michal Hocko
2020-06-23 17:40 ` [PATCH v7 06/19] mm: memcg/slab: obj_cgroup API Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 07/19] mm: memcg/slab: allocate obj_cgroups for non-root slab pages Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 08/19] mm: memcg/slab: save obj_cgroup for non-root slab objects Roman Gushchin
2020-07-16 16:55 ` Naresh Kamboju
2020-07-16 20:07 ` Roman Gushchin
2020-07-17 5:34 ` Naresh Kamboju
2020-06-23 17:40 ` [PATCH v7 10/19] mm: memcg/slab: deprecate memory.kmem.slabinfo Roman Gushchin
2020-06-24 1:43 ` Shakeel Butt
2020-06-24 1:53 ` Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 11/19] mm: memcg/slab: move memcg_kmem_bypass() to memcontrol.h Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 12/19] mm: memcg/slab: use a single set of kmem_caches for all accounted allocations Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 13/19] mm: memcg/slab: simplify memcg cache creation Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 14/19] mm: memcg/slab: remove memcg_kmem_get_cache() Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 15/19] mm: memcg/slab: deprecate slab_root_caches Roman Gushchin
2020-06-23 17:40 ` Roman Gushchin [this message]
2020-06-23 17:40 ` [PATCH v7 17/19] mm: memcg/slab: use a single set of kmem_caches for all allocations Roman Gushchin
2020-07-18 17:24 ` Guenter Roeck
2020-07-18 23:03 ` Roman Gushchin
-- strict thread matches above, loose matches on Subject: below --
2020-06-23 1:58 [PATCH v7 00/19] The new cgroup slab memory controller Roman Gushchin
2020-06-23 1:58 ` [PATCH v7 16/19] mm: memcg/slab: remove redundant check in memcg_accumulate_slabinfo() Roman Gushchin
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