| Message ID | 1317064434-1829-7-git-send-email-john.stultz@linaro.org |
|---|---|
| State | Rejected |
| Headers | show |
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index 00ee80f..c855d40 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -568,9 +568,10 @@ static int alarmtimer_do_nsleep(struct alarm *alarm, ktime_t absexp) do { set_current_state(TASK_INTERRUPTIBLE); alarm_start(alarm, absexp, ktime_set(0, 0)); - if (likely(alarm->data)) + if (likely(alarm->data)) { + sched_deboost_task_active_count(current); schedule(); - + } alarm_cancel(alarm); } while (alarm->data && !signal_pending(current));
Example of deboosting tasks before blocking on a wakeup source like alarmtimer based nanosleep. With this final patch, the kernel will be able to suspend when SCHED_STAYAWAKE flagged tasks are blocked on the alarmtimer. CC: Rafael J. Wysocki <rjw@sisk.pl> CC: arve@android.com CC: markgross@thegnar.org CC: Alan Stern <stern@rowland.harvard.edu> CC: amit.kucheria@linaro.org CC: farrowg@sg.ibm.com CC: Dmitry Fink (Palm GBU) <Dmitry.Fink@palm.com> CC: linux-pm@lists.linux-foundation.org CC: khilman@ti.com CC: Magnus Damm <damm@opensource.se> CC: mjg@redhat.com CC: peterz@infradead.org Signed-off-by: John Stultz <john.stultz@linaro.org> --- kernel/time/alarmtimer.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-)