linux-kernel - Re: [PATCH] lightnvm: check bi

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Message-ID: <56825446.70902@lightnvm.io>
Date:	Tue, 29 Dec 2015 10:37:10 +0100
From:	Matias Bjørling <mb@...htnvm.io>
To:	Wenwei Tao <ww.tao0320@...il.com>
Cc:	linux-kernel@...r.kernel.org, linux-block@...r.kernel.org
Subject: Re: [PATCH] lightnvm: check bi_error in gc

On 12/29/2015 06:50 AM, Wenwei Tao wrote:
> We should check last io compeltion status before
> start another one.
>
> Signed-off-by: Wenwei Tao <ww.tao0320@...il.com>
> ---
>   drivers/lightnvm/rrpc.c | 6 ++++++
>   1 file changed, 6 insertions(+)
>
> diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
> index c0886a8..d40c140 100644
> --- a/drivers/lightnvm/rrpc.c
> +++ b/drivers/lightnvm/rrpc.c
> @@ -328,6 +328,10 @@ try:
>   			goto finished;
>   		}
>   		wait_for_completion_io(&wait);
> +		if (bio->bi_error) {
> +			rrpc_inflight_laddr_release(rrpc, rqd);
> +			goto finished;
> +		}
>
>   		bio_reset(bio);
>   		reinit_completion(&wait);
> @@ -350,6 +354,8 @@ try:
>   		wait_for_completion_io(&wait);
>
>   		rrpc_inflight_laddr_release(rrpc, rqd);
> +		if (bio->bi_error)
> +			goto finished;
>
>   		bio_reset(bio);
>   	}
>
Thanks Tao. I've applied it for 4.5.
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