Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759456AbaGCSil (ORCPT ); Thu, 3 Jul 2014 14:38:41 -0400 Received: from e28smtp08.in.ibm.com ([122.248.162.8]:50952 "EHLO e28smtp08.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752539AbaGCSij (ORCPT ); Thu, 3 Jul 2014 14:38:39 -0400 Message-ID: <53B5A26B.7040606@linux.vnet.ibm.com> Date: Fri, 04 Jul 2014 00:05:23 +0530 From: Raghavendra K T Organization: IBM User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 MIME-Version: 1.0 To: Linus Torvalds CC: Andrew Morton , Fengguang Wu , David Cohen , Al Viro , Damien Ramonda , Jan Kara , David Rientjes , Nishanth Aravamudan , linux-mm , Linux Kernel Mailing List Subject: Re: [PATCH] mm readahead: Fix sys_readahead breakage by reverting 2MB limit (bug 79111) References: <1404392547-11648-1-git-send-email-raghavendra.kt@linux.vnet.ibm.com> <53B59CB5.9060004@linux.vnet.ibm.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14070318-2000-0000-0000-000000D1CDF3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/03/2014 11:52 PM, Linus Torvalds wrote: > On Thu, Jul 3, 2014 at 11:11 AM, Raghavendra K T > wrote: >>> >>> If this comes from some man-page, >> >> Yes it is. > > Ok, googling actually finds a fairly recent patch to fix it > > http://www.spinics.net/lists/linux-mm/msg70517.html > > and several much older "that's not true" comments. Thanks. I had missed that. > > That said, the bugzilla entry you mentioned does mention "can't boot > 3.14 now". I'm not sure what the meaning of that sentence is, though. > Does it mean "can't boot 3.14 to test it because the machine is busy", > or is it a typo and really meant 3.15, and that some bootup script > *depended* on readahead()? I don't know. It seems strange. I think your guess is right, it meant to say "I can't boot it anymore since I already upgraded to 3.15", because eventually bootup script (if it is) should have to read IIUC. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/