From: Ingo Molnar <mingo@elte.hu>
Date: Mon, 26 Nov 2007 20:21:49 +0000 (+0100)
Subject: sched: fix prev_stime calculation
X-Git-Tag: v2.6.24-rc4~93^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=08e4570a4a393bcc241f78dfc444cb0b07995fc0;p=pandora-kernel.git

sched: fix prev_stime calculation

Srivatsa Vaddagiri noticed occasionally incorrect CPU usage
values in top and tracked it down to stime going below 0 in
task_stime(). Negative values are possible there due to the
sampled nature of stime/utime.

Fix suggested by Balbir Singh.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Reviewed-by: Balbir Singh <balbir@linux.vnet.ibm.com>
---

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