Commit:     9c63d9c021f375a2708ad79043d6f4dd1291a085
Parent:     71e20f1873d46e138c26ce83f8fe54b7221f572f
Author:     Ingo Molnar <[EMAIL PROTECTED]>
AuthorDate: Mon Oct 15 17:00:20 2007 +0200
Committer:  Ingo Molnar <[EMAIL PROTECTED]>
CommitDate: Mon Oct 15 17:00:20 2007 +0200

    sched: sync wakeups preempt too
    make sure sync wakeups preempt too - the scheduler will not
    overschedule as we've got various throttles against that.
    As a result, sync wakeups can be used more widely in the kernel
    (to signal wakeup affinity between tasks), and no arbitrary
    latencies will be introduced either.
    Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
 kernel/sched.c |   11 +----------
 1 files changed, 1 insertions(+), 10 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 7fd3434..bba57ad 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1596,16 +1596,7 @@ out_activate:
                schedstat_inc(p, se.nr_wakeups_remote);
        activate_task(rq, p, 1);
-       /*
-        * Sync wakeups (i.e. those types of wakeups where the waker
-        * has indicated that it will leave the CPU in short order)
-        * don't trigger a preemption, if the woken up task will run on
-        * this cpu. (in this case the 'I will reschedule' promise of
-        * the waker guarantees that the freshly woken up task is going
-        * to be considered on this CPU.)
-        */
-       if (!sync || rq->curr == rq->idle)
-               check_preempt_curr(rq, p);
+       check_preempt_curr(rq, p);
        success = 1;
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