Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753937AbYFQExl (ORCPT ); Tue, 17 Jun 2008 00:53:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751400AbYFQExb (ORCPT ); Tue, 17 Jun 2008 00:53:31 -0400 Received: from ag-out-0708.google.com ([72.14.246.250]:32023 "EHLO ag-out-0708.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751383AbYFQExb (ORCPT ); Tue, 17 Jun 2008 00:53:31 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type:date :message-id:mime-version:x-mailer:content-transfer-encoding; b=N6lgrFx30eeE7aBDbPtq2Zu0ljPczjTZ6OlJJ7pd+IIZNKIwd1qMoIjUWUrtDroc2Q cbe4wBUYiMz8Yuj1fqNX1B4WsBYZTzCcBnm1xA+yNUo1VKpZdgvGSHSHr+h1SvH0rBUt 9EoZgb86Ek6prfh8haDhfycKhDQeqBd054hUY= Subject: Re: [PATCH 2/3] relay: Fix race condition which occurs when reading across CPUs. From: Tom Zanussi To: Pekka Enberg Cc: Eduard - Gabriel Munteanu , akpm@linux-foundation.org, compudj@krystal.dyndns.org, linux-kernel@vger.kernel.org, righi.andrea@gmail.com In-Reply-To: <84144f020806152319w487b67fasa70f2cf27de1d761@mail.gmail.com> References: <20080613040958.4f52ee29@linux360.ro> <1213417601.8237.37.camel@charm-linux> <20080614181103.17617db1@linux360.ro> <84144f020806140916j7c39d3fr6ada38169ebc84c2@mail.gmail.com> <1213594690.7744.49.camel@charm-linux> <84144f020806152319w487b67fasa70f2cf27de1d761@mail.gmail.com> Content-Type: text/plain Date: Mon, 16 Jun 2008 23:52:53 -0500 Message-Id: <1213678374.8259.29.camel@charm-linux> Mime-Version: 1.0 X-Mailer: Evolution 2.12.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 812 Lines: 26 Hi Pekka, On Mon, 2008-06-16 at 09:19 +0300, Pekka Enberg wrote: > Hi Tom, > > On Mon, Jun 16, 2008 at 8:38 AM, Tom Zanussi wrote: > > So I guess I don't have strong feelings about it if it's solving a real > > usability problem and doesn't cause any performance (or other) > > regressions. > > Is there some standard performance test for relayfs that we could use > to verify this? Not that I know of, so probably showing how it would affect/not affect read and relay_write users with some before/after comparisons would have to do. Tom -- 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/