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Re: [Qemu-devel] [PATCH 2/4] blocksize: support auto-sensing of blocksiz
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH 2/4] blocksize: support auto-sensing of blocksizes |
Date: |
Wed, 3 Sep 2014 16:37:57 +0100 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Tue, Jul 29, 2014 at 02:27:17PM +0200, Ekaterina Tumanova wrote:
> The block device model does not impose fixed block sizes for
> access to backing devices. This patch introduces support for
> auto lookup of the block sizes of the backing block device.
>
> To achieve this, a new function blkconf_blocksizes is
> implemented. This function tries to get values
> from the block driver. If this does not work 512 is used,
> so the default excecution logic is not changed.
>
> Based on 2013 patch from Einar Lueck <address@hidden>
>
> Signed-off-by: Ekaterina Tumanova <address@hidden>
> Reviewed-by: David Hildenbrand <address@hidden>
> Acked-by: Cornelia Huck <address@hidden>
> ---
> block.c | 12 ++++++++++++
> hw/block/block.c | 25 +++++++++++++++++++++++++
> hw/core/qdev-properties.c | 4 +++-
> include/block/block.h | 1 +
> include/block/block_int.h | 5 +++++
> include/hw/block/block.h | 2 ++
> 6 files changed, 48 insertions(+), 1 deletion(-)
This should be implemented as part of BlockLimits and
bdrv_refresh_limits().
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