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| author | Dmitry Adamushko <dmitry.adamushko@gmail.com> | 2008-01-25 21:08:21 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-25 21:08:21 +0100 |
| commit | 9ec3b77e11b9398ab40b492c4fde7d8aac04a718 (patch) | |
| tree | 50045d0ddae170feea69e097e54b8c019aa81681 | |
| parent | 32525d022ad52a5c14e80e130260431e16e294b6 (diff) | |
| download | linux-9ec3b77e11b9398ab40b492c4fde7d8aac04a718.tar.gz linux-9ec3b77e11b9398ab40b492c4fde7d8aac04a718.tar.bz2 linux-9ec3b77e11b9398ab40b492c4fde7d8aac04a718.zip | |
sched: no need for 'affine wakeup' balancing
No need to do a check for 'affine wakeup and passive balancing possibilities'
in select_task_rq_fair() when task_cpu(p) == this_cpu.
I guess, this part got missed upon introduction of per-sched_class
select_task_rq() in try_to_wake_up().
Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/sched_fair.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index f881fc5e035c..2208692dc4a0 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -925,6 +925,9 @@ static int select_task_rq_fair(struct task_struct *p, int sync) this_cpu = smp_processor_id(); new_cpu = cpu; + if (cpu == this_cpu) + goto out_set_cpu; + for_each_domain(this_cpu, sd) { if (cpu_isset(cpu, sd->span)) { this_sd = sd; |