Messages in this thread Patch in this message | | | Subject | [PATCH v2 3/3] sched/fair: Delete resched_cpu() from idle_balance() | From | Kirill Tkhai <> | Date | Wed, 01 Oct 2014 01:04:44 +0400 |
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From: Kirill Tkhai <ktkhai@parallels.com>
We already reschedule env.dst_cpu in attach_tasks()->check_preempt_curr() if this is necessary.
Furthermore, a higher priority class task may be current on dest rq, we shouldn't disturb it.
Signed-off-by: Kirill Tkhai <ktkhai@parallels.com> --- kernel/sched/fair.c | 6 ------ 1 file changed, 6 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 10a5a28..8265601 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6700,12 +6700,6 @@ static int load_balance(int this_cpu, struct rq *this_rq, local_irq_restore(flags); - /* - * some other cpu did the load balance for us. - */ - if (cur_ld_moved && env.dst_cpu != smp_processor_id()) - resched_cpu(env.dst_cpu); - if (env.flags & LBF_NEED_BREAK) { env.flags &= ~LBF_NEED_BREAK; goto more_balance;
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