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From:   Jeff Moyer <jmoyer@redhat.com>
To:     adam.manzanares@wdc.com
Cc:     viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org,
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        linux-api@vger.kernel.org, hch@infradead.org
Subject: Re: [PATCH v5 4/5] fs: blkdev set bio prio from kiocb prio
In-Reply-To: <20180521160147.2372-5-adam.manzanares@wdc.com> (adam
        manzanares's message of "Mon, 21 May 2018 09:01:46 -0700")
References: <20180521160147.2372-1-adam.manzanares@wdc.com>
        <20180521160147.2372-5-adam.manzanares@wdc.com>
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Date:   Mon, 21 May 2018 17:04:17 -0400
Message-ID: <x49r2m4u3e6.fsf@segfault.boston.devel.redhat.com>
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adam.manzanares@wdc.com writes:

> From: Adam Manzanares <adam.manzanares@wdc.com>
>
> Now that kiocb has an ioprio field copy this over to the bio when it is
> created from the kiocb.
>
> Signed-off-by: Adam Manzanares <adam.manzanares@wdc.com>
> ---
>  fs/block_dev.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/fs/block_dev.c b/fs/block_dev.c
> index 7ec920e27065..da1e94d2bb75 100644
> --- a/fs/block_dev.c
> +++ b/fs/block_dev.c
> @@ -355,6 +355,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages)
>  		bio->bi_write_hint = iocb->ki_hint;
>  		bio->bi_private = dio;
>  		bio->bi_end_io = blkdev_bio_end_io;
> +		bio->bi_ioprio = iocb->ki_ioprio;
>  
>  		ret = bio_iov_iter_get_pages(bio, iter);
>  		if (unlikely(ret)) {

Forgot to mention, you should also convert __blkdev_direct_IO_simple.

-Jeff