tree 3ada866d75493a1f34ddd766c9064558b86a9651
parent e9abba2a8d508729fcba1550e4818923e63ecc23
author Glauber Costa <glommer@openvz.org> 1356519242 +0400
committer Glauber Costa <glommer@openvz.org> 1368624297 +0400

sched: change nr_context_switches calculation.

This patch changes the calculation of nr_context_switches. The variable
"nr_switches" is now used to account for the number of transition to the
idle task, or stop task. It is removed from the schedule() path.

The total calculation can be made using the fact that the transitions to
fair and rt classes are recorded in the root_task_group. One can easily
derive the total figure by adding those quantities together.

Signed-off-by: Glauber Costa <glommer@openvz.org>
CC: Peter Zijlstra <a.p.zijlstra@chello.nl>
CC: Paul Turner <pjt@google.com>