From: Hugh Dickins <hughd@google.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Konstantin Khlebnikov <khlebnikov@openvz.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH next] memcg: remove PCG_CACHE page_cgroup flag fix2
Date: Wed, 29 Feb 2012 18:42:57 -0800 (PST) [thread overview]
Message-ID: <alpine.LSU.2.00.1202291841110.14002@eggly.anvils> (raw)
In-Reply-To: <alpine.LSU.2.00.1202291718450.11821@eggly.anvils>
Add comment to MEM_CGROUP_CHARGE_TYPE_MAPPED case in
__mem_cgroup_uncharge_common().
Signed-off-by: Hugh Dickins <hughd@google.com>
---
This one incremental to patch already in mm-commits.
mm/memcontrol.c | 5 +++++
1 file changed, 5 insertions(+)
--- mm-commits/mm/memcontrol.c 2012-02-28 20:45:43.488100423 -0800
+++ linux/mm/memcontrol.c 2012-02-29 18:21:49.144702180 -0800
@@ -2953,6 +2953,11 @@ __mem_cgroup_uncharge_common(struct page
switch (ctype) {
case MEM_CGROUP_CHARGE_TYPE_MAPPED:
+ /*
+ * Generally PageAnon tells if it's the anon statistics to be
+ * updated; but sometimes e.g. mem_cgroup_uncharge_page() is
+ * used before page reached the stage of being marked PageAnon.
+ */
anon = true;
/* fallthrough */
case MEM_CGROUP_CHARGE_TYPE_DROP:
--
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next prev parent reply other threads:[~2012-03-01 2:43 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-29 5:25 [PATCH 3.3] memcg: fix deadlock by inverting lrucare nesting Hugh Dickins
2012-02-29 5:26 ` [PATCH next] memcg: fix deadlock by avoiding stat lock when anon Hugh Dickins
2012-02-29 19:35 ` Johannes Weiner
2012-03-01 1:18 ` Hugh Dickins
2012-03-01 2:44 ` [PATCH v2 " Hugh Dickins
2012-03-01 9:18 ` KAMEZAWA Hiroyuki
2012-03-01 10:00 ` Johannes Weiner
2012-02-29 5:28 ` [PATCH next] memcg: remove PCG_FILE_MAPPED fix cosmetic fix Hugh Dickins
2012-02-29 5:40 ` KAMEZAWA Hiroyuki
2012-02-29 19:35 ` Johannes Weiner
2012-02-29 5:30 ` [PATCH next] memcg: remove PCG_CACHE page_cgroup flag fix Hugh Dickins
2012-02-29 5:54 ` KAMEZAWA Hiroyuki
2012-02-29 19:43 ` Johannes Weiner
2012-03-01 1:21 ` Hugh Dickins
2012-03-01 2:42 ` Hugh Dickins [this message]
2012-03-01 9:16 ` [PATCH next] memcg: remove PCG_CACHE page_cgroup flag fix2 KAMEZAWA Hiroyuki
2012-02-29 5:39 ` [PATCH 3.3] memcg: fix deadlock by inverting lrucare nesting KAMEZAWA Hiroyuki
2012-02-29 19:00 ` Johannes Weiner
2012-02-29 22:04 ` Andrew Morton
2012-03-01 0:43 ` Hugh Dickins
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