Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932434AbVLNLg0 (ORCPT ); Wed, 14 Dec 2005 06:36:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932432AbVLNLg0 (ORCPT ); Wed, 14 Dec 2005 06:36:26 -0500 Received: from smtp.osdl.org ([65.172.181.4]:41427 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S932431AbVLNLgZ (ORCPT ); Wed, 14 Dec 2005 06:36:25 -0500 Date: Wed, 14 Dec 2005 03:35:36 -0800 From: Andrew Morton To: Alan Cox Cc: arjan@infradead.org, dhowells@redhat.com, cfriesen@nortel.com, torvalds@osdl.org, hch@infradead.org, matthew@wil.cx, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Subject: Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation Message-Id: <20051214033536.05183668.akpm@osdl.org> In-Reply-To: <1134559470.25663.22.camel@localhost.localdomain> References: <439EDC3D.5040808@nortel.com> <1134479118.11732.14.camel@localhost.localdomain> <3874.1134480759@warthog.cambridge.redhat.com> <15167.1134488373@warthog.cambridge.redhat.com> <1134490205.11732.97.camel@localhost.localdomain> <1134556187.2894.7.camel@laptopd505.fenrus.org> <1134558188.25663.5.camel@localhost.localdomain> <1134558507.2894.22.camel@laptopd505.fenrus.org> <1134559470.25663.22.camel@localhost.localdomain> X-Mailer: Sylpheed version 1.0.4 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 438 Lines: 9 Could someone please remind me why we're even discussing this, given that mutex_down() is slightly more costly than current down(), and mutex_up() is appreciably more costly than current up()? - 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/