From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [PATCH 2/2] dentry: move to per-sb LRU locks Date: Mon, 08 Aug 2011 15:02:24 +0200 Message-ID: <1312808544.10488.31.camel@twins> References: <1312787021-11324-1-git-send-email-david@fromorbit.com> <1312787021-11324-3-git-send-email-david@fromorbit.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Cc: viro@ZenIV.linux.org.uk, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org To: Dave Chinner Return-path: Received: from merlin.infradead.org ([205.233.59.134]:38497 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753233Ab1HHNCj convert rfc822-to-8bit (ORCPT ); Mon, 8 Aug 2011 09:02:39 -0400 In-Reply-To: <1312787021-11324-3-git-send-email-david@fromorbit.com> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Mon, 2011-08-08 at 17:03 +1000, Dave Chinner wrote: > + /* s_dentry_lru_lock protects s_dentry_lru, s_nr_dentry_unused */ > + spinlock_t s_dentry_lru_lock ____cacheline_aligned_in_smp; > struct list_head s_dentry_lru; /* unused dentry lru */ Wouldn't it make sense to have both those on the same cacheline?