From: "Aneesh Kumar K.V" Subject: Re: [PATCH] use percpu data for lg_prealloc_list Date: Mon, 18 Aug 2008 21:26:50 +0530 Message-ID: <20080818155650.GA6491@skywalker> References: <48A331FA.6070602@redhat.com> <48A9999C.6070609@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: ext4 development To: Eric Sandeen Return-path: Received: from e28smtp01.in.ibm.com ([59.145.155.1]:43917 "EHLO e28esmtp01.in.ibm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752396AbYHRP46 (ORCPT ); Mon, 18 Aug 2008 11:56:58 -0400 Received: from d28relay02.in.ibm.com (d28relay02.in.ibm.com [9.184.220.59]) by e28esmtp01.in.ibm.com (8.13.1/8.13.1) with ESMTP id m7IFutHj007034 for ; Mon, 18 Aug 2008 21:26:55 +0530 Received: from d28av01.in.ibm.com (d28av01.in.ibm.com [9.184.220.63]) by d28relay02.in.ibm.com (8.13.8/8.13.8/NCO v9.0) with ESMTP id m7IFutNw1511494 for ; Mon, 18 Aug 2008 21:26:55 +0530 Received: from d28av01.in.ibm.com (loopback [127.0.0.1]) by d28av01.in.ibm.com (8.13.1/8.13.3) with ESMTP id m7IFutM0008222 for ; Mon, 18 Aug 2008 21:26:55 +0530 Content-Disposition: inline In-Reply-To: <48A9999C.6070609@redhat.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Mon, Aug 18, 2008 at 10:47:40AM -0500, Eric Sandeen wrote: > Eric Sandeen wrote: > > lg_prealloc_list seems to cry out for a per-cpu data structure; on a large > > smp system I think this should be better. I've lightly tested this change > > on a 4-cpu system. Comments welcome... > > Any thoughts on this? Does this seem to be the right way to go? > Acked-by: Aneesh Kumar K.V