From: Darrick J. Wong <djwong@us.ibm.com>
Date: Fri, 15 Aug 2008 07:40:41 +0000 (-0700)
Subject: ibmaem: don't query the entire sensor repository when reading energy meter
X-Git-Tag: v2.6.27-rc4~77
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb15e7f286e3ecf3e85e06ad9b0019096e43a613;p=pandora-kernel.git

ibmaem: don't query the entire sensor repository when reading energy meter

Currently, all sensors are read when the energy meter is queried via
sysfs.  This introduces a considerable amount of delay and variation in
the sysfs reading, which is not desirable when trying to profile energy
use.  Therefore, read only the energy meters when a sysfs query comes in
for them, and don't cache the results so that we always get the latest
reading.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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