linux-kernel - [RFC][PATCH 0/2 v6] blk: fix a wrong accounting of hd_struct->in

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Message-ID: <4CFCB078.3030905@jp.fujitsu.com>
Date:	Mon, 06 Dec 2010 18:44:24 +0900
From:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
To:	jaxboe@...ionio.com, vgoyal@...hat.com, jmarchan@...hat.com,
	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: [RFC][PATCH 0/2 v6] blk: fix a wrong accounting of hd_struct->in_flight

Hi Jens, Linus, Vivek, Jerome,

Do you remember following problem?

https://lkml.org/lkml/2010/10/24/118

I try to fix a original problem, which is a wrong accounting of
hd_struct->in_flight, by completely rewriting a patch.

Here are patches for fixing the original problem.

  [PATCH 1/2] Don't merge different partition's IOs
  [PATCH 1/2] Change a argument of disk_map_sector_rcu() to
              hd_part->start_sect from req->__sector

For more details, please refer to the header of each patch.

Any comments or questions are welcome.

Thanks.
Yasuaki Ishimatsu

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