Re: [PATCH 01/14] blk-mq: do not include passthrough requests in I/O accounting

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To: Christoph Hellwig <hch@xxxxxx>, Jens Axboe <axboe@xxxxxxxxx>
Subject: Re: [PATCH 01/14] blk-mq: do not include passthrough requests in I/O accounting
From: Bart Van Assche <bvanassche@xxxxxxx>
Date: Sat, 5 Mar 2022 17:02:56 -0800
Cc: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>, Ming Lei <ming.lei@xxxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx
In-reply-to: <20220304160331.399757-2-hch@lst.de>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.6.1

On 3/4/22 08:03, Christoph Hellwig wrote:

I/O accounting buckets I/O into the read/write/discard categories into
which passthrough I/O does not fit at all.  It also accounts to the
block_device, which may not even exist for passthrough I/O.


Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>

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References:
- move more work to disk_release v3
  - From: Christoph Hellwig
- [PATCH 01/14] blk-mq: do not include passthrough requests in I/O accounting
  - From: Christoph Hellwig

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