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SubjectRe: [patch] 2.4.19-pre10-ac2: O(1) scheduler merge, -A3.
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On Sun, 2002-06-16 at 16:57, Robert Love wrote:

> Another case of 2.4-ac being right

Attached patch brings over the sane bits from 2.4-ac: i.e. if Linus
merges this and Alan merges your patch minus my complaints, the two
trees will be in sync...

Robert Love

diff -urN linux-2.5.21/kernel/sched.c linux/kernel/sched.c
--- linux-2.5.21/kernel/sched.c Sat Jun 8 22:28:13 2002
+++ linux/kernel/sched.c Sun Jun 16 17:14:31 2002
@@ -762,8 +762,8 @@
list_t *queue;
int idx;

- if (unlikely(in_interrupt()))
- BUG();
+ BUG_ON(in_interrupt());
+
#if CONFIG_DEBUG_HIGHMEM
check_highmem_ptes();
#endif
@@ -1147,7 +1147,7 @@

/*
* Valid priorities for SCHED_FIFO and SCHED_RR are
- * 1..MAX_USER_RT_PRIO, valid priority for SCHED_OTHER is 0.
+ * 1..MAX_USER_RT_PRIO-1, valid priority for SCHED_OTHER is 0.
*/
retval = -EINVAL;
if (lp.sched_priority < 0 || lp.sched_priority > MAX_USER_RT_PRIO-1)
@@ -1710,15 +1710,15 @@
sigfillset(&current->blocked);
set_fs(KERNEL_DS);
/*
- * The first migration thread is started on CPU #0. This one can migrate
- * the other migration threads to their destination CPUs.
+ * The first migration thread is started on CPU #0. This one can
+ * migrate the other migration threads to their destination CPUs.
*/
if (cpu != 0) {
while (!cpu_rq(cpu_logical_map(0))->migration_thread)
yield();
set_cpus_allowed(current, 1UL << cpu);
}
- printk("migration_task %d on cpu=%d\n",cpu,smp_processor_id());
+ printk("migration_task %d on cpu=%d\n", cpu, smp_processor_id());
ret = setscheduler(0, SCHED_FIFO, &param);

rq = this_rq();
@@ -1790,4 +1790,4 @@
while (!cpu_rq(cpu_logical_map(cpu))->migration_thread)
schedule_timeout(2);
}
-#endif
+#endif /* CONFIG_SMP */
-
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