tree 1a44f56e18012120aff0969094eebd572deb2ea3
parent e9515c3c9feecd74174c2998add0db51e02abb8d
author Ken Chen <kenchen@google.com> 1229499682 -0800
committer Ingo Molnar <mingo@elte.hu> 1229604841 +0100

schedstat: consolidate per-task cpu runtime stats

Impact: simplify code

When we turn on CONFIG_SCHEDSTATS, per-task cpu runtime is accumulated
twice. Once in task->se.sum_exec_runtime and once in sched_info.cpu_time.
These two stats are exactly the same.

Given that task->se.sum_exec_runtime is always accumulated by the core
scheduler, sched_info can reuse that data instead of duplicate the accounting.

Signed-off-by: Ken Chen <kenchen@google.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>