Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=94bc9a7bd97efdda4dfbe61d0df32ce19d41c0a9
Commit: 94bc9a7bd97efdda4dfbe61d0df32ce19d41c0a9
Parent: ce96b5ac742801718ae86d2adf0500c5abef3782
Author: Dmitry Adamushko <[EMAIL PROTECTED]>
AuthorDate: Thu Nov 15 20:57:40 2007 +0100
Committer: Ingo Molnar <[EMAIL PROTECTED]>
CommitDate: Thu Nov 15 20:57:40 2007 +0100
sched: remove activate_idle_task()
cpu_down() code is ok wrt sched_idle_next() placing the 'idle' task not
at the beginning of the queue.
So get rid of activate_idle_task() and make use of activate_task() instead.
It is the same as activate_task(), except for the update_rq_clock(rq) call
that is redundant.
Code size goes down:
text data bss dec hex filename
47853 3934 336 52123 cb9b sched.o.before
47828 3934 336 52098 cb82 sched.o.after
Signed-off-by: Dmitry Adamushko <[EMAIL PROTECTED]>
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
---
kernel/sched.c | 22 ++++------------------
1 files changed, 4 insertions(+), 18 deletions(-)
diff --git a/kernel/sched.c b/kernel/sched.c
index db1f71e..cc8cb6f 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5282,23 +5282,9 @@ static void migrate_live_tasks(int src_cpu)
}
/*
- * activate_idle_task - move idle task to the _front_ of runqueue.
- */
-static void activate_idle_task(struct task_struct *p, struct rq *rq)
-{
- update_rq_clock(rq);
-
- if (p->state == TASK_UNINTERRUPTIBLE)
- rq->nr_uninterruptible--;
-
- enqueue_task(rq, p, 0);
- inc_nr_running(p, rq);
-}
-
-/*
* Schedules idle task to be the next runnable task on current CPU.
- * It does so by boosting its priority to highest possible and adding it to
- * the _front_ of the runqueue. Used by CPU offline code.
+ * It does so by boosting its priority to highest possible.
+ * Used by CPU offline code.
*/
void sched_idle_next(void)
{
@@ -5318,8 +5304,8 @@ void sched_idle_next(void)
__setscheduler(rq, p, SCHED_FIFO, MAX_RT_PRIO-1);
- /* Add idle task to the _front_ of its priority queue: */
- activate_idle_task(p, rq);
+ update_rq_clock(rq);
+ activate_task(rq, p, 0);
spin_unlock_irqrestore(&rq->lock, flags);
}
-
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