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Re: [Qemu-devel] [PATCH 3/3] cow: use qemu block API
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH 3/3] cow: use qemu block API |
Date: |
Mon, 07 Jun 2010 14:27:40 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) |
Christoph Hellwig <address@hidden> writes:
> Use bdrv_pwrite to access the backing device instead of pread, and
> convert the driver to implementing the bdrv_open method which gives
> it an already opened BlockDriverState for the underlying device.
>
> Signed-off-by: Christoph Hellwig <address@hidden>
In my (admittedly limited) understanding, we need this for sane protocol
handling in -blockdev & friends.