Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756999Ab1CIAws (ORCPT ); Tue, 8 Mar 2011 19:52:48 -0500 Received: from smtp1.linux-foundation.org ([140.211.169.13]:57131 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756931Ab1CIAwq (ORCPT ); Tue, 8 Mar 2011 19:52:46 -0500 Date: Tue, 8 Mar 2011 16:51:41 -0800 From: Andrew Morton To: Petr Holasek Cc: linux-kernel@vger.kernel.org, anton@redhat.com, Alexander Viro , Ingo Molnar , Dave Young , David Miller , Don Zickus , linux-fsdevel@vger.kernel.org Subject: Re: [PATCH] sysctl: some input constraints checks were added for /proc/sys/vm directory Message-Id: <20110308165141.3dc7e377.akpm@linux-foundation.org> In-Reply-To: <1299082575-3084-1-git-send-email-pholasek@redhat.com> References: <1299082575-3084-1-git-send-email-pholasek@redhat.com> X-Mailer: Sylpheed 3.0.2 (GTK+ 2.20.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 680 Lines: 18 On Wed, 2 Mar 2011 17:16:14 +0100 Petr Holasek wrote: > There were added boundaries of allowed input ranges for: dirty_expire_centisecs, > drop_caches, overcommit_memory, page-cluster and panic_on_oom. > > ... > Well.. It's a non-back-compatible userspace interface change. Yes, it's unlikely that any userspace was doing, for example, "echo 7 > /proc/sys/vm/drop_caches". But if it was, we just broke it. -- 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/