Re: [PATCH v13 08/10] copy-on-read: skip non-guest reads if no copy needed

[Vladimir Sementsov-Ogievskiy]

02.12.2020 21:30, Andrey Shinkevich wrote:
> If the flag BDRV_REQ_PREFETCH was set, skip idling read/write
> operations in COR-driver. It can be taken into account for the
> COR-algorithms optimization. That check is being made during the
> block stream job by the moment.
>
> Add the BDRV_REQ_PREFETCH flag to the supported_read_flags of the
> COR-filter.
>
> block: Modify the comment for the flag BDRV_REQ_PREFETCH as we are
> going to use it alone and pass it to the COR-filter driver for further
> processing.
>
> Signed-off-by: Andrey Shinkevich<andrey.shinkevich@virtuozzo.com>

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>

--
Best regards,
Vladimir