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Message-ID: <d4f44ce3-3f4b-e8d9-4b8a-7f846dfd6d10@wdc.com>
Date:   Mon, 21 May 2018 21:43:16 +0000
From:   Adam Manzanares <Adam.Manzanares@....com>
To:     Jeff Moyer <jmoyer@...hat.com>
CC:     "viro@...iv.linux.org.uk" <viro@...iv.linux.org.uk>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        "axboe@...nel.dk" <axboe@...nel.dk>,
        "bcrl@...ck.org" <bcrl@...ck.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...nel.org" <mingo@...nel.org>,
        "pombredanne@...b.com" <pombredanne@...b.com>,
        "kstewart@...uxfoundation.org" <kstewart@...uxfoundation.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "bigeasy@...utronix.de" <bigeasy@...utronix.de>,
        "jack@...e.cz" <jack@...e.cz>,
        "darrick.wong@...cle.com" <darrick.wong@...cle.com>,
        "rgoldwyn@...e.com" <rgoldwyn@...e.com>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-aio@...ck.org" <linux-aio@...ck.org>,
        "linux-api@...r.kernel.org" <linux-api@...r.kernel.org>,
        "hch@...radead.org" <hch@...radead.org>
Subject: Re: [PATCH v5 4/5] fs: blkdev set bio prio from kiocb prio



On 5/21/18 2:04 PM, Jeff Moyer wrote:
> adam.manzanares@....com writes:
> 
>> From: Adam Manzanares <adam.manzanares@....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@....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.

NP.

> 
> -Jeff
> 

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