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=-6.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 CEB83C433E0 for ; Mon, 4 Jan 2021 17:43:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 98C6A206A4 for ; Mon, 4 Jan 2021 17:43:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727629AbhADRnu (ORCPT ); Mon, 4 Jan 2021 12:43:50 -0500 Received: from mail.kernel.org ([198.145.29.99]:37394 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726072AbhADRnt (ORCPT ); Mon, 4 Jan 2021 12:43:49 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id C519D2068D; Mon, 4 Jan 2021 17:43:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1609782189; bh=Tgv3wz9rAa77pSHih7ePWFj/dppL74JdZ4ehDTq8Q0w=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=OqTSxs9hzeQBvsrZyXywlYMRWkSnJhvI2C0nmPxXGmOXyAzJsFd1NN3+8uNk+6GQa K9GUOLDwoGfDMosu0ekMnxtvRdk5AqqeUTUuyu4okIDxNwunZAAQiREpvVJYerkxSl zyP1w9TMC1cWrE9dgitamrSPbSv5NT/jx8AuqdCMGeU1QFWajU+IV8tlpdWdbbZTJi UtDhaKr/xsW981yfwbK3XHj/Tm96TgbeT46/BQWzogD0+u6DV1NiMjW6BZQv14EZUs LxbkbnxmfMKFdAry2euikf2AUxBWvqNY7kj/+yKwxHc3hOkbGHk8rHITv6+GeoR7OG Rs/43AOymlMEg== Date: Mon, 4 Jan 2021 12:43:07 -0500 From: Sasha Levin To: Pavel Begunkov Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Jens Axboe Subject: Re: [PATCH 5.10 21/63] kernel/io_uring: cancel io_uring before task works Message-ID: <20210104174307.GD3665355@sasha-vm> References: <20210104155708.800470590@linuxfoundation.org> <20210104155709.846535201@linuxfoundation.org> <2e03dac2-a91c-ede1-0109-a4d4297e3efd@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <2e03dac2-a91c-ede1-0109-a4d4297e3efd@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 04, 2021 at 04:06:39PM +0000, Pavel Begunkov wrote: >On 04/01/2021 15:57, Greg Kroah-Hartman wrote: >> From: Pavel Begunkov >> >> commit b1b6b5a30dce872f500dc43f067cba8e7f86fc7d upstream. >> >> For cancelling io_uring requests it needs either to be able to run >> currently enqueued task_works or having it shut down by that moment. >> Otherwise io_uring_cancel_files() may be waiting for requests that won't >> ever complete. > >Greg, can you drop it from stable for now? I'll backport it later when >related problems are sorted. I've dropped it, let us know when it's good to go back in. -- Thanks, Sasha