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| author | Olof Johansson <olof@lixom.net> | 2012-09-05 15:33:19 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-09-05 15:33:19 -0700 |
| commit | 301fd5c13257862df66c81c48d963d474e63e0ef (patch) | |
| tree | 128af89336dd8b1ee62696c4588057b2eb0b445e /kernel/sched/stop_task.c | |
| parent | daa56a06b5a592ceb69130a1d15c067a078f2701 (diff) | |
| parent | 7952717adb69efc1d2443a1858f96d23c2fb93e0 (diff) | |
Merge branch 'kzm9g' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc
* 'kzm9g' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: kzm9g: enable restarting
+ sync to 3.6-rc3
Diffstat (limited to 'kernel/sched/stop_task.c')
| -rw-r--r-- | kernel/sched/stop_task.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/kernel/sched/stop_task.c b/kernel/sched/stop_task.c index 7b386e86fd2..da5eb5bed84 100644 --- a/kernel/sched/stop_task.c +++ b/kernel/sched/stop_task.c @@ -27,8 +27,10 @@ static struct task_struct *pick_next_task_stop(struct rq *rq) { struct task_struct *stop = rq->stop; - if (stop && stop->on_rq) + if (stop && stop->on_rq) { + stop->se.exec_start = rq->clock_task; return stop; + } return NULL; } @@ -52,6 +54,21 @@ static void yield_task_stop(struct rq *rq) static void put_prev_task_stop(struct rq *rq, struct task_struct *prev) { + struct task_struct *curr = rq->curr; + u64 delta_exec; + + delta_exec = rq->clock_task - curr->se.exec_start; + if (unlikely((s64)delta_exec < 0)) + delta_exec = 0; + + schedstat_set(curr->se.statistics.exec_max, + max(curr->se.statistics.exec_max, delta_exec)); + + curr->se.sum_exec_runtime += delta_exec; + account_group_exec_runtime(curr, delta_exec); + + curr->se.exec_start = rq->clock_task; + cpuacct_charge(curr, delta_exec); } static void task_tick_stop(struct rq *rq, struct task_struct *curr, int queued) @@ -60,6 +77,9 @@ static void task_tick_stop(struct rq *rq, struct task_struct *curr, int queued) static void set_curr_task_stop(struct rq *rq) { + struct task_struct *stop = rq->stop; + + stop->se.exec_start = rq->clock_task; } static void switched_to_stop(struct rq *rq, struct task_struct *p) |