From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Clements Subject: Re: md: Change ENOTSUPP to EOPNOTSUPP Date: Mon, 01 May 2006 21:54:44 -0400 Message-ID: <4456BBE4.2000706@steeleye.com> References: <20060428124313.29510.patches@notabene> <1060428025144.30770@suse.de> <62b0912f0604280634x7df2a8a5m9022826876446cb6@mail.gmail.com> <44524765.6070703@emc.com> <62b0912f0604290650v6fa0759flace16041c26fa003@mail.gmail.com> <4453CB4D.9020907@emc.com> <445633D4.2000607@fooplanet.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <445633D4.2000607@fooplanet.com> Sender: linux-raid-owner@vger.kernel.org To: Gil Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids Gil wrote: > So for those of us using other filesystems (e.g. ext2/3), is there > some way to determine whether or not barriers are available? You'll see something like this in your system log if barriers are not supported: Apr 3 16:44:01 adam kernel: JBD: barrier-based sync failed on md0 - disabling barriers Otherwise, assume that they are. But like Neil said, it shouldn't matter to a user whether they are supported or not. Filesystems will work correctly either way. -- Paul