From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5839CC43441 for ; Fri, 9 Nov 2018 09:21:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2BF5520840 for ; Fri, 9 Nov 2018 09:21:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2BF5520840 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728086AbeKITBK (ORCPT ); Fri, 9 Nov 2018 14:01:10 -0500 Received: from mx1.redhat.com ([209.132.183.28]:44984 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727941AbeKITBK (ORCPT ); Fri, 9 Nov 2018 14:01:10 -0500 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id F1F814DB1F; Fri, 9 Nov 2018 09:21:28 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.43.17.31]) by smtp.corp.redhat.com (Postfix) with SMTP id 4B1BD1062253; Fri, 9 Nov 2018 09:21:24 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Fri, 9 Nov 2018 10:21:28 +0100 (CET) Date: Fri, 9 Nov 2018 10:21:24 +0100 From: Oleg Nesterov To: Chanho Min Cc: "Rafael J. Wysocki" , Pavel Machek , Len Brown , Andrew Morton , "Eric W. Biederman" , Christian Brauner , Anna-Maria Gleixner , Alexander Viro , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Seungho Park , Inkyu Hwang , Donghwan Jung , Jongsung Kim Subject: Re: [PATCH] exec: make de_thread() freezable Message-ID: <20181109092123.GA29945@redhat.com> References: <1541752656-12857-1-git-send-email-chanho.min@lge.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1541752656-12857-1-git-send-email-chanho.min@lge.com> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Fri, 09 Nov 2018 09:21:29 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/09, Chanho Min wrote: > > @@ -1083,7 +1084,7 @@ static int de_thread(struct task_struct *tsk) > while (sig->notify_count) { > __set_current_state(TASK_KILLABLE); > spin_unlock_irq(lock); > - schedule(); > + freezable_schedule(); Thanks, but please note another schedule() in "if (!thread_group_leader(tsk))" branch, we probably want to change it too? Oleg.