Re: [Qemu-devel] [PATCH v2 15/17] raw-posix: detect XFS unwritten extents

[Eric Blake]

On 07/16/2013 10:29 AM, Paolo Bonzini wrote:
> Signed-off-by: Paolo Bonzini <address@hidden>
> ---
>  block/raw-posix.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/block/raw-posix.c b/block/raw-posix.c
> index d011cfd..1b41ea3 100644
> --- a/block/raw-posix.c
> +++ b/block/raw-posix.c
> @@ -1128,6 +1128,9 @@ static int64_t coroutine_fn 
> raw_co_get_block_status(BlockDriverState *bs,
>      } else {
>          data = f.fe.fe_logical;
>          hole = f.fe.fe_logical + f.fe.fe_length;
> +        if (f.fe.fe_flags & FIEMAP_EXTENT_UNWRITTEN) {
> +            ret |= BDRV_BLOCK_ZERO;
> +        }
>      }

Reviewed-by: Eric Blake <address@hidden>

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

signature.asc
Description: OpenPGP digital signature