[Devel] [RH7 PATCH 6/6] patch ploop_state_debugging.patch

[Maxim Patlasov]

OK

On 06/23/2016 10:25 AM, Dmitry Monakhov wrote:
> Signed-off-by: Dmitry Monakhov <dmonakhov at openvz.org>
> ---
>   drivers/block/ploop/dev.c | 6 ++++++
>   1 file changed, 6 insertions(+)
>
> diff --git a/drivers/block/ploop/dev.c b/drivers/block/ploop/dev.c
> index 090cd2d..9bf8592 100644
> --- a/drivers/block/ploop/dev.c
> +++ b/drivers/block/ploop/dev.c
> @@ -1232,6 +1232,12 @@ static void ploop_complete_request(struct ploop_request * preq)
>   	}
>   	preq->bl.tail = NULL;
>   
> +	if (!preq->error) {
> +		unsigned long state = READ_ONCE(preq->state);
> +		WARN_ON(state & (PLOOP_REQ_POST_SUBMIT_FL|
> +				 PLOOP_REQ_DEL_CONV_FL |
> +				 PLOOP_REQ_DEL_FLUSH_FL ));
> +	}
>   	if (test_bit(PLOOP_REQ_RELOC_A, &preq->state) ||
>   	    test_bit(PLOOP_REQ_RELOC_S, &preq->state)) {
>   		if (preq->error)