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authorKirill Tkhai <ktkhai@parallels.com>2014-10-01 01:04:44 +0400
committerIngo Molnar <mingo@kernel.org>2014-10-03 05:46:56 +0200
commit10a12983b3d437a6998b3845870e52c1c752c101 (patch)
tree28adcb483e4fd5f1001068f5038017b14c9dbc3f /kernel
parent347abad981c1ef815ea5ba861adba6a8c6aa1580 (diff)
downloadop-kernel-dev-10a12983b3d437a6998b3845870e52c1c752c101.zip
op-kernel-dev-10a12983b3d437a6998b3845870e52c1c752c101.tar.gz
sched/fair: Delete resched_cpu() from idle_balance()
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> Cc: Juri Lelli <juri.lelli@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: http://lkml.kernel.org/r/20140930210441.5258.55054.stgit@localhost Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched/fair.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index dfdcbfd..bd61cff 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6701,12 +6701,6 @@ more_balance:
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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