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

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To: Christoph Hellwig <hch@xxxxxx>
Subject: Re: [PATCH 01/14] blk-mq: do not include passthrough requests in I/O accounting
From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Date: Mon, 07 Mar 2022 22:13:47 -0500
Cc: Jens Axboe <axboe@xxxxxxxxx>, "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>, Ming Lei <ming.lei@xxxxxxxxxx>, Bart Van Assche <bvanassche@xxxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx
In-reply-to: <20220304160331.399757-2-hch@lst.de> (Christoph Hellwig's message of "Fri, 4 Mar 2022 17:03:18 +0100")
Organization: Oracle Corporation
References: <20220304160331.399757-1-hch@lst.de> <20220304160331.399757-2-hch@lst.de>

Christoph,

> 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: Martin K. Petersen <martin.petersen@xxxxxxxxxx>

-- 
Martin K. Petersen	Oracle Linux Engineering

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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