From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762268AbYEWFCo (ORCPT ); Fri, 23 May 2008 01:02:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751754AbYEWFCd (ORCPT ); Fri, 23 May 2008 01:02:33 -0400 Received: from yw-out-2324.google.com ([74.125.46.29]:20323 "EHLO yw-out-2324.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760557AbYEWFC2 (ORCPT ); Fri, 23 May 2008 01:02:28 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Q+a2o9mfSzx3/bw7SCBx6upt26dnpQKE/ydpmuC63b6p3+ShVeYogAUc3bDBkj1/gUB2/NAr3RhVm00hrdTxnRYhwn3hmihVALzD5sXUBOt2J4cheoEJ369mskp5FLu0MMtRFrvmFhSnne5ABTa5KxDXDUwKSz6zv7y1ln+NKgA= Message-ID: Date: Thu, 22 May 2008 22:02:19 -0700 From: "Ulrich Drepper" To: "Daniel Walker" Subject: Re: [PATCH 3/3] futex: fix miss ordered wakeups Cc: linux-kernel@vger.kernel.org In-Reply-To: <20080523042923.916202203@mvista.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080523042923.594531457@mvista.com> <20080523042923.916202203@mvista.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 22, 2008 at 12:00 AM, Daniel Walker wrote: > This patch corrects this issue, so the tasks are always woken in priority > order. This is completely unnecessary overhead for 99.999% of all cases. It was deliberately not done. You slowing things down for everybody. If you want priorities, then use PI futexes.