Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754876Ab3HXMt3 (ORCPT ); Sat, 24 Aug 2013 08:49:29 -0400 Received: from mailout39.mail01.mtsvc.net ([216.70.64.83]:40797 "EHLO n12.mail01.mtsvc.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754189Ab3HXMt2 (ORCPT ); Sat, 24 Aug 2013 08:49:28 -0400 Message-ID: <5218ABD5.1000400@hurleysoftware.com> Date: Sat, 24 Aug 2013 08:49:25 -0400 From: Peter Hurley User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130803 Thunderbird/17.0.8 MIME-Version: 1.0 To: =?UTF-8?B?U3Zlbm5pbmcgU8O4cmVuc2Vu?= CC: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: [PATCH] IPC: bugfix for msgrcv with msgtyp < 0 References: <52189CB1.9030806@secomea.dk> In-Reply-To: <52189CB1.9030806@secomea.dk> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Authenticated-User: 990527 peter@hurleysoftware.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 844 Lines: 21 On 08/24/2013 07:44 AM, Svenning Sørensen wrote: > According to 'man msgrcv': > "If msgtyp is less than 0, the first message of the lowest type that is less > than or equal to the absolute value of msgtyp shall be received." > > Bug: The kernel only returns a message if its type is 1; other messages with > type < abs(msgtype) will never get returned. > > Fix: After having traversed the list to find the first message with the > lowest type, we need to actually return that message. Sorry for the breakage. Needs to go to -stable as well. Reviewed-by: Peter Hurley -- 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/