linux-kernel - Re: [PATCH] Implement barrier support for single device DM devices

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20080219111222.GE155407@sgi.com>
Date:	Tue, 19 Feb 2008 22:12:22 +1100
From:	David Chinner <dgc@....com>
To:	Michael Tokarev <mjt@....msk.ru>, Andi Kleen <andi@...stfloor.org>,
	dm-devel@...hat.com, linux-kernel@...r.kernel.org,
	Milan Broz <mbroz@...hat.com>
Subject: Re: [PATCH] Implement barrier support for single device DM devices

On Tue, Feb 19, 2008 at 02:39:00AM +0000, Alasdair G Kergon wrote:
> > For example, how safe
> > xfs is if barriers are not supported or turned off?  
> 
> The last time we tried xfs with dm it didn't seem to notice -EOPNOTSUPP
> everywhere it should => recovery may find corruption.

Bug reports, please. What we don't know about, we can't fix.

As of this commit:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0bfefc46dc028df60120acdb92062169c9328769

XFS should be handling all cases of -EOPNOTSUPP for barrier
I/Os. If you are still having problems, please let us know.

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/