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authorMike Galbraith <efault@gmx.de>2007-10-15 17:00:14 +0200
committerIngo Molnar <mingo@elte.hu>2007-10-15 17:00:14 +0200
commit95938a35c5562afa7af7252821e44132391a3db8 (patch)
tree548cda134d007105f3a819a438ab384ab9f04e27 /include
parentce6c131131df442f0d49d064129ecc52d9fe8ca9 (diff)
sched: prevent wakeup over-scheduling
Prevent wakeup over-scheduling. Once a task has been preempted by a task of the same or lower priority, it becomes ineligible for repeated preemption by same until it has been ticked, or slept. Instead, the task is marked for preemption at the next tick. Tasks of higher priority still preempt immediately. Signed-off-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
-rw-r--r--include/linux/sched.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 04233c8974d9..8be5b57768c0 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -912,6 +912,7 @@ struct sched_entity {
struct load_weight load; /* for load-balancing */
struct rb_node run_node;
unsigned int on_rq;
+ int peer_preempt;
u64 exec_start;
u64 sum_exec_runtime;