Re: [Qemu-devel] [Qemu-block] [PATCH v4 3/9] block/block: add BDRV flag for io_uring

[Maxim Levitsky <mlevitsk@redhat.com>]

On Mon, 2019-06-03 at 18:08 +0530, Aarushi Mehta wrote:
> Signed-off-by: Aarushi Mehta <mehta.aaru20@gmail.com>
> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
> ---
>  include/block/block.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/block/block.h b/include/block/block.h
> index 9b083e2bca..60f7c6c01c 100644
> --- a/include/block/block.h
> +++ b/include/block/block.h
> @@ -121,6 +121,7 @@ typedef struct HDGeometry {
>                                        ignoring the format layer */
>  #define BDRV_O_NO_IO       0x10000 /* don't initialize for I/O */
>  #define BDRV_O_AUTO_RDONLY 0x20000 /* degrade to read-only if opening read-write fails */
> +#define BDRV_O_IO_URING    0x40000 /* use io_uring instead of the thread pool */
>  
>  #define BDRV_O_CACHE_MASK  (BDRV_O_NOCACHE | BDRV_O_NO_FLUSH)
>  

I had some fun learning now why do we need that flag.
Lot of code could be removed when someday we will remove the -drive interface.


Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>

Best regards,
	Maxim Levitsky