Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754358AbXHBNDo (ORCPT ); Thu, 2 Aug 2007 09:03:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751718AbXHBNDh (ORCPT ); Thu, 2 Aug 2007 09:03:37 -0400 Received: from mail.fieldses.org ([66.93.2.214]:53233 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751634AbXHBNDg (ORCPT ); Thu, 2 Aug 2007 09:03:36 -0400 Date: Thu, 2 Aug 2007 09:03:19 -0400 To: Lee Revell Cc: Ingo Molnar , Peter Zijlstra , Kasper Sandberg , Linus Torvalds , Linux Kernel Mailing List , ck@vds.kolivas.org Subject: Re: SD still better than CFS for 3d ?(was Re: 2.6.23-rc1) Message-ID: <20070802130319.GB15761@fieldses.org> References: <1185536610.502.8.camel@localhost> <20070729170641.GA26220@elte.hu> <1185839164.27166.7.camel@localhost> <1185863461.3092.4.camel@twins> <20070731085713.GA15136@elte.hu> <75b66ecd0708011935x600fc547j8edbe1ed3092d560@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <75b66ecd0708011935x600fc547j8edbe1ed3092d560@mail.gmail.com> User-Agent: Mutt/1.5.16 (2007-06-11) From: "J. Bruce Fields" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 861 Lines: 22 On Wed, Aug 01, 2007 at 10:35:41PM -0400, Lee Revell wrote: > On 7/31/07, Ingo Molnar wrote: > > Almost all of the Reiser3 > > code runs under the BKL, and the only other major kernel infrastructure > > that has BKL dependencies is the TTY code. > > Also NFS: > > $ grep -rIi lock_kernel kernel-source/linux-2.6.17/fs/nfs/ | wc -l > 94 All the file locking code (the nfs-related stuff in fs/lockd/, and also the vfs code in fs/locks.c) is under the kernel lock. I doubt it's held very long unless you have ridiculous numbers of processes requesting locks on the same file, but I don't know. --b. - 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/