From: "Eric A" Subject: Fwd: barriers off by default? Date: Mon, 12 May 2008 12:51:09 -0600 Message-ID: <72c5d9a0805121151m2d838f3cxe61368b928dc5db2@mail.gmail.com> References: <482868A5.1000102@redhat.com> <72c5d9a0805121030y709de9cehc01df8aeb5b1b8d3@mail.gmail.com> <482883FD.8060001@redhat.com> <72c5d9a0805121150j58482bc6qd57a87089ce4414e@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit To: linux-ext4@vger.kernel.org Return-path: Received: from mu-out-0910.google.com ([209.85.134.191]:9620 "EHLO mu-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753133AbYELSvL (ORCPT ); Mon, 12 May 2008 14:51:11 -0400 Received: by mu-out-0910.google.com with SMTP id w8so1268513mue.1 for ; Mon, 12 May 2008 11:51:10 -0700 (PDT) In-Reply-To: <72c5d9a0805121150j58482bc6qd57a87089ce4414e@mail.gmail.com> Content-Disposition: inline Sender: linux-ext4-owner@vger.kernel.org List-ID: Whoops. Forgot to send this to the list. ---------- Forwarded message ---------- From: Eric A Date: Mon, May 12, 2008 at 12:50 PM Subject: Re: barriers off by default? To: Eric Sandeen On Mon, May 12, 2008 at 11:53 AM, Eric Sandeen wrote: > > From reading the documentation, I was under the impression that write > > barriers don't always do what they're supposed to do. > > Which documentation? > Documentation/block/barrier.txt There's a section that starts: "* Error handling. Currently, block layer will report error to upper layer if any of requests in an ordered sequence fails. Unfortunately, this doesn't seem to be enough. " Cheers, Eric