[Devel] [PATCH rh7] ploop: disable WRITE SAME for io_kaio

[Konstantin Khorenko]

Maxim, and what about 2.6.32-x kernel?
Need the patch there as well?

--
Best regards,

Konstantin Khorenko,
Virtuozzo Linux Kernel Team

On 12/24/2015 03:55 AM, Maxim Patlasov wrote:
> kaio doesn't support WRITE SAME, so the patch disables it
>
> https://jira.sw.ru/browse/PSBM-41965
>
> Signed-off-by: Maxim Patlasov <mpatlasov at virtuozzo.com>
> ---
>   drivers/block/ploop/io_kaio.c |    1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/block/ploop/io_kaio.c b/drivers/block/ploop/io_kaio.c
> index db900a3..79aa9af 100644
> --- a/drivers/block/ploop/io_kaio.c
> +++ b/drivers/block/ploop/io_kaio.c
> @@ -946,6 +946,7 @@ static void kaio_unplug(struct ploop_io * io)
>   static void kaio_queue_settings(struct ploop_io * io, struct request_queue * q)
>   {
>   	blk_set_stacking_limits(&q->limits);
> +	blk_queue_max_write_same_sectors(q, 0);
>   }
>
>   static void kaio_issue_flush(struct ploop_io * io, struct ploop_request *preq)
>
>