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Re: [Qemu-devel] [PATCH 3/3 v2] dmg: use qemu block API
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From: |
Kevin Wolf |
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Subject: |
Re: [Qemu-devel] [PATCH 3/3 v2] dmg: use qemu block API |
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Date: |
Wed, 12 May 2010 17:51:43 +0200 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100330 Fedora/3.0.4-1.fc12 Thunderbird/3.0.4 |
Am 12.05.2010 16:31, schrieb Christoph Hellwig:
> 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.
>
> Dmg actually does an lseek to a negative offset in the open routine,
> which we replace with offset arithmetics after doing a bdrv_getlength.
>
> Signed-off-by: Christoph Hellwig <address@hidden>
Thanks, applied all to the block branch.
Kevin