From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f175.google.com (mail-wi0-f175.google.com [209.85.212.175]) by kanga.kvack.org (Postfix) with ESMTP id 612326B0070 for ; Wed, 25 Mar 2015 02:17:36 -0400 (EDT) Received: by wibg7 with SMTP id g7so66616329wib.1 for ; Tue, 24 Mar 2015 23:17:35 -0700 (PDT) Received: from gum.cmpxchg.org (gum.cmpxchg.org. [85.214.110.215]) by mx.google.com with ESMTPS id ew8si20784269wid.77.2015.03.24.23.17.34 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 24 Mar 2015 23:17:35 -0700 (PDT) From: Johannes Weiner Subject: [patch 03/12] mm: oom_kill: switch test-and-clear of known TIF_MEMDIE to clear Date: Wed, 25 Mar 2015 02:17:07 -0400 Message-Id: <1427264236-17249-4-git-send-email-hannes@cmpxchg.org> In-Reply-To: <1427264236-17249-1-git-send-email-hannes@cmpxchg.org> References: <1427264236-17249-1-git-send-email-hannes@cmpxchg.org> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Linus Torvalds , Andrew Morton , Tetsuo Handa , Huang Ying , Andrea Arcangeli , Dave Chinner , Michal Hocko , Theodore Ts'o exit_oom_victim() already knows that TIF_MEMDIE is set, and nobody else can clear it concurrently. Use clear_thread_flag() directly. Signed-off-by: Johannes Weiner --- mm/oom_kill.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/oom_kill.c b/mm/oom_kill.c index b2f081fe4b1a..4b9547be9170 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -435,8 +435,7 @@ void mark_oom_victim(struct task_struct *tsk) */ void exit_oom_victim(void) { - if (!test_and_clear_thread_flag(TIF_MEMDIE)) - return; + clear_thread_flag(TIF_MEMDIE); down_read(&oom_sem); /* -- 2.3.3 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org