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=-5.4 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,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 10801C433DF for ; Mon, 12 Oct 2020 21:43:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4BCEF20797 for ; Mon, 12 Oct 2020 21:43:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="D+Wm1k2e" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730536AbgJLVnZ (ORCPT ); Mon, 12 Oct 2020 17:43:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49828 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730399AbgJLVnY (ORCPT ); Mon, 12 Oct 2020 17:43:24 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 897ADC0613D0; Mon, 12 Oct 2020 14:43:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To:Subject:Sender :Reply-To:Content-ID:Content-Description; bh=ZI0Kdum38xI6uGs3y2Dg7AaEs3YQjEOBKT9911THbyU=; b=D+Wm1k2eypHkVHYf7ZCEzBtaqm GBe8TbPGD+fLHBo2kifrmhmXBlqmo+XaNDTSR0RhSUeyKhbUzZovIa7dQuGqkXxHAIznesk/nJX6X qVVs5FPRycE/B2MJUbFXS0au51AgoyHMY/iwsdEcplb7zvpPjK67EGfQPo9ca/eqvh2zOiXRxWrDk E3JODh21n5PqqQ/iDQCRUlcR9tekx0M8QHoSLKAkPOQVBVDHH30/8p+JzHkpwmrene0Do2Bo+x7Wr Mi87DAyK0BCuCLUCNXObEqAJt0gt7jOM4xInSu/R3Av9iX8CGyL6KPrjuruxkNIrpishX0+1EHtzm 2xzO4MMg==; Received: from [2601:1c0:6280:3f0::507c] by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kS5bD-0007m8-3m; Mon, 12 Oct 2020 21:43:19 +0000 Subject: Re: Regression: epoll edge-triggered (EPOLLET) for pipes/FIFOs To: Linus Torvalds , "Michael Kerrisk (man-pages)" Cc: Alexander Viro , David Howells , Rasmus Villemoes , Greg Kroah-Hartman , Peter Zijlstra , Nicolas Dichtel , Ian Kent , Christian Brauner , keyrings@vger.kernel.org, "linux-fsdevel@vger.kernel.org" , Linux API , lkml , Davide Libenzi References: <81229415-fb97-51f7-332c-d5e468bcbf2a@gmail.com> From: Randy Dunlap Message-ID: <22d3e535-564e-ebb9-991b-b328f9f806ed@infradead.org> Date: Mon, 12 Oct 2020 14:43:13 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/12/20 1:52 PM, Linus Torvalds wrote: > On Mon, Oct 12, 2020 at 1:30 PM Michael Kerrisk (man-pages) > > I'm busy merging, mind testing this odd patch out? It is _entirely_ > untested, but from the symptoms I think it's the obvious fix. > > I did the same thing for the "reader starting out from a full pipe" case too. > > Linus > and if that patch tests good, then fix this typo, please: + * Epoll nonsensically wants a wakeup wheher the pipe was whether thanks. -- ~Randy