Re: [Qemu-devel] [PATCH v3 05/12] block/json: Add functions for cache control

["Benoît Canet" <benoit.canet@irqsave.net>]

The Thursday 10 Apr 2014 à 20:43:36 (+0200), Max Reitz wrote :
> Add passthrough functions for bdrv_aio_flush() and
> bdrv_invalidate_cache().
> 
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
>  block/json.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/block/json.c b/block/json.c
> index 591bc47..0e2d518 100644
> --- a/block/json.c
> +++ b/block/json.c
> @@ -88,6 +88,18 @@ static BlockDriverAIOCB *json_aio_writev(BlockDriverState *bs,
>      return bdrv_aio_writev(bs->file, sector_num, qiov, nb_sectors, cb, opaque);
>  }
>  
> +static BlockDriverAIOCB *json_aio_flush(BlockDriverState *bs,
> +                                        BlockDriverCompletionFunc *cb,
> +                                        void *opaque)
> +{
> +    return bdrv_aio_flush(bs->file, cb, opaque);
> +}
> +
> +static void json_invalidate_cache(BlockDriverState *bs, Error **errp)
> +{
> +    return bdrv_invalidate_cache(bs->file, errp);
> +}
> +
>  static int64_t json_getlength(BlockDriverState *bs)
>  {
>      return bdrv_getlength(bs->file);
> @@ -115,6 +127,9 @@ static BlockDriver bdrv_json = {
>  
>      .bdrv_aio_readv             = json_aio_readv,
>      .bdrv_aio_writev            = json_aio_writev,
> +    .bdrv_aio_flush             = json_aio_flush,
> +
> +    .bdrv_invalidate_cache      = json_invalidate_cache,
>  
>      .has_variable_length        = true,
>      .bdrv_getlength             = json_getlength,
> -- 
> 1.9.1
> 
Reviewed-by: Benoit Canet <benoit@irqsave.net>