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authorThomas Gleixner <tglx@linutronix.de>2010-01-20 20:58:57 +0000
committerThomas Gleixner <tglx@linutronix.de>2010-01-22 18:09:59 +0100
commitea87bb7853168434f4a82426dd1ea8421f9e604d (patch)
treefcadec9b0fd1c57e4d1b625e2492c13c852972f1 /include/linux/sched.h
parent7c9414385ebfdd87cc542d4e7e3bb0dbb2d3ce25 (diff)
sched: Extend enqueue_task to allow head queueing
The ability of enqueueing a task to the head of a SCHED_FIFO priority list is required to fix some violations of POSIX scheduling policy. Extend the related functions with a "head" argument. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <peterz@infradead.org> Tested-by: Carsten Emde <cbe@osadl.org> Tested-by: Mathias Weber <mathias.weber.mw1@roche.com> LKML-Reference: <20100120171629.734886007@linutronix.de>
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8b079735ae5..b35c0c7130c 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1067,7 +1067,8 @@ struct sched_domain;
struct sched_class {
const struct sched_class *next;
- void (*enqueue_task) (struct rq *rq, struct task_struct *p, int wakeup);
+ void (*enqueue_task) (struct rq *rq, struct task_struct *p, int wakeup,
+ bool head);
void (*dequeue_task) (struct rq *rq, struct task_struct *p, int sleep);
void (*yield_task) (struct rq *rq);