From: Wanpeng Li <liwp.linux@gmail.com>
To: linux-mm@kvack.org
Cc: Michal Hocko <mhocko@suse.cz>,
Johannes Weiner <hannes@cmpxchg.org>,
Balbir Singh <bsingharora@gmail.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mel@csn.ul.ie>, Minchan Kim <minchan@kernel.org>,
linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
Gavin Shan <shangw@linux.vnet.ibm.com>,
Wanpeng Li <liwp.linux@gmail.com>
Subject: [PATCH 1/6] memcg: replace unsigned long by u64 to avoid overflow
Date: Sat, 23 Jun 2012 14:15:34 +0800 [thread overview]
Message-ID: <1340432134-5178-1-git-send-email-liwp.linux@gmail.com> (raw)
From: Wanpeng Li <liwp@linux.vnet.ibm.com>
Since the return value variable in mem_cgroup_zone_nr_lru_pages and
mem_cgroup_node_nr_lru_pages functions are u64, so replace the return
value of funtions by u64 to avoid overflow.
Signed-off-by: Wanpeng Li <liwp.linux@gmail.com>
---
mm/memcontrol.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index a2677e0..724bd02 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -776,8 +776,7 @@ mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, int nid, int zid,
return ret;
}
-static unsigned long
-mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
+static u64 mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
int nid, unsigned int lru_mask)
{
u64 total = 0;
@@ -790,7 +789,7 @@ mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
return total;
}
-static unsigned long mem_cgroup_nr_lru_pages(struct mem_cgroup *memcg,
+static u64 mem_cgroup_nr_lru_pages(struct mem_cgroup *memcg,
unsigned int lru_mask)
{
int nid;
--
1.7.9.5
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next reply other threads:[~2012-06-23 6:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-23 6:15 Wanpeng Li [this message]
2012-06-23 8:15 ` [PATCH 1/6] memcg: replace unsigned long by u64 to avoid overflow Johannes Weiner
2012-06-23 9:03 ` Wanpeng Li
2012-06-23 9:26 ` Johannes Weiner
2012-06-25 4:24 ` Kamezawa Hiroyuki
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