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SubjectRe: [patch 2.6.16-mm2 4/9] sched throttle tree extract - remove kthread barrier
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This patch removes the last barrier between a normal task using dynamic
priorities and kthreads using the same. In testing, this separation has
proven to be unnecessary.

Signed-off-by: Mike Galbraith <efault@gmx.de>

--- linux-2.6.16-mm2/kernel/sched.c-3.remove_IO_barrier 2006-04-01 08:57:40.000000000 +0200
+++ linux-2.6.16-mm2/kernel/sched.c 2006-04-01 09:01:54.000000000 +0200
@@ -865,13 +865,13 @@ static int recalc_task_prio(task_t *p, u

if (likely(sleep_time > 0)) {
/*
- * User tasks that sleep a long time are categorised as
- * idle. They will only have their sleep_avg increased to a
+ * Tasks that sleep a long time are categorised as idle.
+ * They will only have their sleep_avg increased to a
* level that makes them just interactive priority to stay
* active yet prevent them suddenly becoming cpu hogs and
* starving other processes.
*/
- if (p->mm && sleep_time > INTERACTIVE_SLEEP(p)) {
+ if (sleep_time > INTERACTIVE_SLEEP(p)) {
unsigned long ceiling;

ceiling = JIFFIES_TO_NS(MAX_SLEEP_AVG -

-
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