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_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 0D0D4C0650E for ; Wed, 3 Jul 2019 17:36:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E4AB8218A4 for ; Wed, 3 Jul 2019 17:36:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727034AbfGCRgH (ORCPT ); Wed, 3 Jul 2019 13:36:07 -0400 Received: from mx1.redhat.com ([209.132.183.28]:35000 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726574AbfGCRgH (ORCPT ); Wed, 3 Jul 2019 13:36:07 -0400 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 838887FDCA; Wed, 3 Jul 2019 17:35:52 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.43.17.136]) by smtp.corp.redhat.com (Postfix) with SMTP id 8F1EC1001B35; Wed, 3 Jul 2019 17:35:47 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Wed, 3 Jul 2019 19:35:52 +0200 (CEST) Date: Wed, 3 Jul 2019 19:35:47 +0200 From: Oleg Nesterov To: Andrew Morton Cc: Jens Axboe , Hugh Dickins , Peter Zijlstra , Qian Cai , hch@lst.de, gkohli@codeaurora.org, mingo@redhat.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] block: fix a crash in do_task_dead() Message-ID: <20190703173546.GB21672@redhat.com> References: <1559161526-618-1-git-send-email-cai@lca.pw> <20190530080358.GG2623@hirez.programming.kicks-ass.net> <82e88482-1b53-9423-baad-484312957e48@kernel.dk> <20190603123705.GB3419@hirez.programming.kicks-ass.net> <97d2f5cc-fe98-f28e-86ce-6fbdeb8b67bd@kernel.dk> <20190702150615.1dfbbc2345c1c8f4d2a235c0@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190702150615.1dfbbc2345c1c8f4d2a235c0@linux-foundation.org> 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 [10.5.110.27]); Wed, 03 Jul 2019 17:36:07 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/02, Andrew Morton wrote: > On Mon, 1 Jul 2019 08:22:32 -0600 Jens Axboe wrote: > > > Andrew, can you queue Oleg's patch for 5.2? You can also add my: > > > > Reviewed-by: Jens Axboe > > Sure. Although things are a bit of a mess. Oleg, can we please have a > clean resend with signoffs and acks, etc? OK, will do tomorrow. This cleanup can be improved, we can avoid get/put_task_struct altogether, but need to recheck. Oleg.