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Re: [dm-devel] Barriers still not passing on simple dm devices...

From: Bodo Eggert <7eggert gmx de>
To: Mikulas Patocka <mpatocka redhat com>, Jens Axboe <jens axboe oracle com>, device-mapper development <dm-devel redhat com>, Linux Kernel Mailing List <linux-kernel vger kernel org>, Andi Kleen <ak suse de>, " \"MASON"@redhat.com, CHRISTOPHER <CHRIS MASON oracle com>
Cc:
Subject: Re: [dm-devel] Barriers still not passing on simple dm devices...
Date: Thu, 26 Mar 2009 14:05:00 +0100

Mikulas Patocka <mpatocka redhat com> wrote:

> ./drivers/block/loop.c:
> doesn't reject barriers, it's ok because it doesn't reorder requests

But it relies on other devices to not reorder.

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