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[66.29.164.166]) by smtp.gmail.com with ESMTPSA id l31sm6823400pgm.63.2019.07.03.10.52.26 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 03 Jul 2019 10:52:27 -0700 (PDT) Subject: Re: [PATCH] block: fix a crash in do_task_dead() To: Oleg Nesterov , Andrew Morton Cc: Hugh Dickins , Peter Zijlstra , Qian Cai , hch@lst.de, gkohli@codeaurora.org, mingo@redhat.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org 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> <20190703173546.GB21672@redhat.com> From: Jens Axboe Message-ID: Date: Wed, 3 Jul 2019 11:52:25 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <20190703173546.GB21672@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/3/19 11:35 AM, Oleg Nesterov wrote: > 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. I'd just send it again as-is. We're removing the blk wakeup special case anyway for 5.3. -- Jens Axboe