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[Xen-devel] Re: [PATCH] xen_disk: treat "aio" as "raw"

To: Kevin Wolf <kwolf@xxxxxxxxxx>
Subject: [Xen-devel] Re: [PATCH] xen_disk: treat "aio" as "raw"
From: Alexander Graf <agraf@xxxxxxx>
Date: Thu, 30 Jun 2011 14:45:33 +0200
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, qemu-devel@xxxxxxxxxx, stefano.stabellini@xxxxxxxxxxxxx
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On 06/30/2011 02:47 PM, Kevin Wolf wrote:
Am 30.06.2011 13:47, schrieb Alexander Graf:
On 06/24/2011 04:50 PM, stefano.stabellini@xxxxxxxxxxxxx wrote:
From: Stefano Stabellini<stefano.stabellini@xxxxxxxxxxxxx>

Sometimes the toolstack uses "aio" without an additional format
identifier, in such cases use "raw".
Shouldn't this rather be a patch to the toolstack then? We do automatic
file format recognition as default. I find magical "aio equals raw"
subtleties rather unintuitive.
The asynchronous raw blktap driver is (was?) called "aio", so I guess
it's to stay compatible with that. Has always been this way in Xen (and
has always been confusing). As long as it stays in xen_disk.c, I don't
really mind...

Is there a realistic chance of changing the toolstack here? I'd really prefer not to drag this legacy around :).


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