Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934128Ab0KQCMw (ORCPT ); Tue, 16 Nov 2010 21:12:52 -0500 Received: from bld-mail13.adl6.internode.on.net ([150.101.137.98]:42301 "EHLO mail.internode.on.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S934095Ab0KQCMs (ORCPT ); Tue, 16 Nov 2010 21:12:48 -0500 Date: Wed, 17 Nov 2010 13:12:44 +1100 From: Dave Chinner To: Nick Piggin Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [patch 00/28] [rfc] dcache scaling part 1 Message-ID: <20101117021244.GM22876@dastard> References: <20101116140900.039761100@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20101116140900.039761100@kernel.dk> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1011 Lines: 28 On Wed, Nov 17, 2010 at 01:09:00AM +1100, Nick Piggin wrote: > There are 3 main parts to dcache scaling. This one primarily adds new locks > to take over dcache_lock, and some pre/post prep and streamlining patches. > > The second implements fine grained locking, and is rather trivial after > part 1. > > The third implements rcu-walk. rcu-walk depends on the first part, because it > relies on using d_lock to protect the state of the dentry (when converting from > rcu-walk to refcounted walk). Without the fine grained locing, we'd need to use > dcache_lock for that, which would be a step backwards to put into path walking > again. > > Comments? Do you have a git tree somewhere with this series in it? Cheers, Dave. -- Dave Chinner david@fromorbit.com -- 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/