linux-kernel - Re: [dm-devel] Re: Write barriers on MD RAID1

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20090624070917.GB27500@agk-dp.fab.redhat.com>
Date:	Wed, 24 Jun 2009 08:09:17 +0100
From:	Alasdair G Kergon <agk@...hat.com>
To:	Neil Brown <neilb@...e.de>
Cc:	device-mapper development <dm-devel@...hat.com>,
	Ken Milmore <ken.milmore@...glemail.com>,
	linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org,
	Jens Axboe <jens.axboe@...cle.com>,
	Mikulas Patocka <mpatocka@...hat.com>
Subject: Re: [dm-devel] Re: Write barriers on MD RAID1

On Wed, Jun 24, 2009 at 01:43:35PM +1000, Neil Brown wrote:
> Since this test was added, barriers have not worked on md, and (I
> think) dm and similar devices that don't use __make_request and so
> don't bother to set next_ordered.
 
In dm, we added this:

+       blk_queue_ordered(md->queue, QUEUE_ORDERED_DRAIN, NULL);

Alasdair

--
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/