Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1020387f5f3b52929b387103cf976321981f8e26
Commit: 1020387f5f3b52929b387103cf976321981f8e26
Parent: 37bb6cb4097e29ffee970065b74499cbf10603a3
Author: Peter Zijlstra <[EMAIL PROTECTED]>
AuthorDate: Fri Jan 25 21:08:32 2008 +0100
Committer: Ingo Molnar <[EMAIL PROTECTED]>
CommitDate: Fri Jan 25 21:08:32 2008 +0100
sched: rt-group: reduce rescheduling
Only reschedule if the new group has a higher prio task.
Signed-off-by: Peter Zijlstra <[EMAIL PROTECTED]>
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
---
kernel/sched_rt.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index 8bfdb3f..f1f215d 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -94,8 +94,11 @@ static void sched_rt_ratio_enqueue(struct rt_rq *rt_rq)
struct sched_rt_entity *rt_se = rt_rq->rt_se;
if (rt_se && !on_rt_rq(rt_se) && rt_rq->rt_nr_running) {
+ struct task_struct *curr = rq_of_rt_rq(rt_rq)->curr;
+
enqueue_rt_entity(rt_se);
- resched_task(rq_of_rt_rq(rt_rq)->curr);
+ if (rt_rq->highest_prio < curr->prio)
+ resched_task(curr);
}
}
-
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