linux-kernel - [PATCH 1/2] memcg: remove -EINTR at rmdir()

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Message-ID: <4FDF17A3.9060202@jp.fujitsu.com>
Date:	Mon, 18 Jun 2012 20:57:23 +0900
From:	Kamezawa Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	linux-mm <linux-mm@...ck.org>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	cgroups@...r.kernel.org, Michal Hocko <mhocko@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Johannes Weiner <hannes@...xchg.org>
Subject: [PATCH 1/2] memcg: remove -EINTR at rmdir()

2 follow-up patches for "memcg: move charges to root cgroup if use_hierarchy=0",
developped/tested onto memcg-devel tree. Maybe no HUNK with -next and -mm....
-Kame
==
memcg: remove -EINTR at rmdir()

By commit "memcg: move charges to root cgroup if use_hierarchy=0",
no memory reclaiming will occur at removing memory cgroup.

So, we don't need to take care of user interrupt by signal. This
patch removes it.
(*) If -EINTR is returned here, cgroup will show WARNING.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
---
 mm/memcontrol.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 0623300..cf8a0f6 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3890,9 +3890,6 @@ move_account:
 		ret = -EBUSY;
 		if (cgroup_task_count(cgrp) || !list_empty(&cgrp->children))
 			goto out;
-		ret = -EINTR;
-		if (signal_pending(current))
-			goto out;
 		/* This is for making all *used* pages to be on LRU. */
 		lru_add_drain_all();
 		drain_all_stock_sync(memcg);
-- 
1.7.4.1


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