[sheepdog] [PATCH v4 1/3] sheepdog: add discard/trim support for sheepdog

[Stefan Hajnoczi]

On Tue, Apr 23, 2013 at 02:03:33PM +0800, Liu Yuan wrote:
> From: Liu Yuan <tailai.ly at taobao.com>
> 
> The 'TRIM' command from VM that is to release underlying data storage for
> better thin-provision is already supported by the Sheepdog.
> 
> This patch adds the TRIM support at QEMU part.
> 
> For older Sheepdog that doesn't support it, we return 0(success) to upper layer.
> 
> Cc: MORITA Kazutaka <morita.kazutaka at lab.ntt.co.jp>
> Cc: Kevin Wolf <kwolf at redhat.com>
> Cc: Stefan Hajnoczi <stefanha at redhat.com>
> Cc: Paolo Bonzini <pbonzini at redhat.com>
> Signed-off-by: Liu Yuan <tailai.ly at taobao.com>
> ---
>  block/sheepdog.c |   64 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
>  1 file changed, 63 insertions(+), 1 deletion(-)

Thanks, applied to my block tree:
https://github.com/stefanha/qemu/commits/block

Stefan