On 09/24/2013 07:35 AM, Peter Lieven wrote:
> this patch adds BlockLimits which introduces discard and write_zeroes
> limits and alignment information to the BlockDriverState.
> 
> Signed-off-by: Peter Lieven <pl@kamp.de>
> ---
>  include/block/block_int.h |   17 +++++++++++++++++
>  1 file changed, 17 insertions(+)

>  
> +struct BlockLimits {

Should this be a typedef?  Either in include/qemu/typedefs.h (where
BlockDriverState is listed), or locally (see BdrvTrackedRequest in the
same file for an example)?

> @@ -280,6 +294,9 @@ struct BlockDriverState {
>      uint64_t total_time_ns[BDRV_MAX_IOTYPE];
>      uint64_t wr_highest_sector;
>  
> +    /* I/O Limits */
> +    struct BlockLimits bl;
> +

All other struct/pointer-to-struct members in BlockDriverState are
listed by typedef name, rather than calling out 'struct foo'.

My question is one of style/consistency, not of C correctness; so unless
a maintainer actually agrees that a typedef change is needed so that you
comply with project coding standards, feel free to add:

Reviewed-by: Eric Blake <eblake@redhat.com>

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