From: Jun'ichi "Nick" Nomura <j-nomura@ce.jp.nec.com>
Date: Wed, 1 Feb 2006 11:04:53 +0000 (-0800)
Subject: [PATCH] device-mapper disk statistics: timing
X-Git-Tag: v2.6.16-rc2~150
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3eaf840e0b0046f56602c524c7ba58a82f5526c5;p=pandora-kernel.git

[PATCH] device-mapper disk statistics: timing

Record I/O timing statistics

The start time is added to struct dm_io, an existing structure allocated
privately internally within dm and attached to each incoming bio.

We export disk_round_stats() from block/ll_rw_blk.c instead of creating a
private clone.

Signed-off-by: Jun'ichi "Nick" Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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