Re: [Qemu-devel] [PATCH 07/11] block: optimization blk_pwrite_compressed()

[Eric Blake <eblake@redhat.com>]

[-- Attachment #1: Type: text/plain, Size: 1140 bytes --]

On 05/31/2016 03:15 AM, Denis V. Lunev wrote:
> From: Pavel Butsykin <pbutsykin@virtuozzo.com>
> 
> For bdrv_pwrite_compressed() it looks like most of the code creating coroutine
> is duplicated in blk_prw(). So we can just add a flag(BDRV_REQ_WRITE_COMPRESSED)
> and use the blk_prw() as a generic one.
> 
> Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
> Signed-off-by: Denis V. Lunev <den@openvz.org>
> CC: Jeff Cody <jcody@redhat.com>
> CC: Markus Armbruster <armbru@redhat.com>
> CC: Eric Blake <eblake@redhat.com>
> CC: John Snow <jsnow@redhat.com>
> CC: Stefan Hajnoczi <stefanha@redhat.com>
> CC: Kevin Wolf <kwolf@redhat.com>
> ---

> +++ b/include/block/block.h
> @@ -65,6 +65,7 @@ typedef enum {
>      BDRV_REQ_MAY_UNMAP          = 0x4,
>      BDRV_REQ_NO_SERIALISING     = 0x8,
>      BDRV_REQ_FUA                = 0x10,
> +    BDRV_REQ_WRITE_COMPRESSED   = 0x20,
>  } BdrvRequestFlags;
>  

Needs to be rebased on top of commit fa166538, and adjust BDRV_REQ_MASK
at that time.

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


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 604 bytes --]