From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f72.google.com (mail-pa0-f72.google.com [209.85.220.72]) by kanga.kvack.org (Postfix) with ESMTP id B7C186B0005 for ; Sat, 2 Jul 2016 22:40:17 -0400 (EDT) Received: by mail-pa0-f72.google.com with SMTP id ts6so283133120pac.1 for ; Sat, 02 Jul 2016 19:40:17 -0700 (PDT) Received: from www262.sakura.ne.jp (www262.sakura.ne.jp. [2001:e42:101:1:202:181:97:72]) by mx.google.com with ESMTPS id t15si1421086pfj.37.2016.07.02.19.40.15 for (version=TLS1 cipher=AES128-SHA bits=128/128); Sat, 02 Jul 2016 19:40:17 -0700 (PDT) Subject: [PATCH 5/8] mm,oom: Remove unused signal_struct->oom_victims. From: Tetsuo Handa References: <201607031135.AAH95347.MVOHQtFJFLOOFS@I-love.SAKURA.ne.jp> In-Reply-To: <201607031135.AAH95347.MVOHQtFJFLOOFS@I-love.SAKURA.ne.jp> Message-Id: <201607031140.GAF05212.tMFJFOOSLOQHVF@I-love.SAKURA.ne.jp> Date: Sun, 3 Jul 2016 11:40:03 +0900 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Cc: akpm@linux-foundation.org, oleg@redhat.com, rientjes@google.com, vdavydov@parallels.com, mst@redhat.com, mhocko@suse.com, mhocko@kernel.org >>From e2e22cd0c0c486d1aef01232fcc62b00fb01709f Mon Sep 17 00:00:00 2001 From: Tetsuo Handa Date: Sat, 2 Jul 2016 23:02:19 +0900 Subject: [PATCH 5/8] mm,oom: Remove unused signal_struct->oom_victims. Since OOM_SCAN_ABORT case was removed, we no longer need to use signal_struct->oom_victims useless. Remove it. Signed-off-by: Tetsuo Handa --- include/linux/sched.h | 1 - mm/oom_kill.c | 2 -- 2 files changed, 3 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 553af29..f472f27 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -671,7 +671,6 @@ struct signal_struct { atomic_t sigcnt; atomic_t live; int nr_threads; - atomic_t oom_victims; /* # of TIF_MEDIE threads in this thread group */ struct list_head thread_head; wait_queue_head_t wait_chldexit; /* for wait4() */ diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 734378a..55e0ffb 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -659,7 +659,6 @@ void mark_oom_victim(struct task_struct *tsk, struct oom_control *oc) /* OOM killer might race with memcg OOM */ if (test_and_set_tsk_thread_flag(tsk, TIF_MEMDIE)) return; - atomic_inc(&tsk->signal->oom_victims); /* * Since mark_oom_victim() is called from multiple threads, * connect this mm to oom_mm_list only if not yet connected. @@ -693,7 +692,6 @@ void exit_oom_victim(struct task_struct *tsk) { if (!test_and_clear_tsk_thread_flag(tsk, TIF_MEMDIE)) return; - atomic_dec(&tsk->signal->oom_victims); if (!atomic_dec_return(&oom_victims)) wake_up_all(&oom_victims_wait); -- 1.8.3.1 -- 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