From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Chinner Subject: Re: Filesystem benchmarks on reasonably fast hardware Date: Mon, 18 Jul 2011 21:10:59 +1000 Message-ID: <20110718111059.GF30254@dastard> References: <20110717160501.GA1437@logfs.org> <20110717233252.GH21663@dastard> <20110718075339.GB1437@logfs.org> <20110718103956.GE1437@logfs.org> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: linux-fsdevel@vger.kernel.org To: =?iso-8859-1?Q?J=F6rn?= Engel Return-path: Received: from ipmail07.adl2.internode.on.net ([150.101.137.131]:19170 "EHLO ipmail07.adl2.internode.on.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754194Ab1GRLLH (ORCPT ); Mon, 18 Jul 2011 07:11:07 -0400 Content-Disposition: inline In-Reply-To: <20110718103956.GE1437@logfs.org> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Mon, Jul 18, 2011 at 12:39:56PM +0200, J=F6rn Engel wrote: > Write lockstat (I mistakenly sent the read one twice). Yeah, that's the i_mutex that is the issue there. We are definitely taking exclusive locks during the IO submission process there. I suspect I might be able to write a patch that does all the checks under a shared lock - similar to the patch for the read side - but it is definitely more complex and I'll have to have a bit of a think about it. Thanks for the bug report! Cheers, Dave. --=20 Dave Chinner david@fromorbit.com -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel= " in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html