Signed-off-by: Richard Weinberger <rich...@nod.at>
---
arch/um/Kconfig.common | 1 +
arch/um/kernel/process.c | 27 ++-------------------------
2 files changed, 3 insertions(+), 25 deletions(-)
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index bceee66..5783406 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -12,6 +12,7 @@ config UML
select GENERIC_CPU_DEVICES
select GENERIC_IO
select GENERIC_CLOCKEVENTS
+ select GENERIC_IDLE_LOOP
select TTY # Needed for line.c
config MMU
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index b462b13..4d64860 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -210,33 +210,10 @@ void initial_thread_cb(void (*proc)(void *), void *arg)
kmalloc_ok = save_kmalloc_ok;
}
-void default_idle(void)
-{
- unsigned long long nsecs;
-
- while (1) {
- /* endless idle loop with no priority at all */
-
- /*
- * although we are an idle CPU, we do not want to
- * get into the scheduler unnecessarily.
- */
- if (need_resched())
- schedule();
-
- tick_nohz_idle_enter();
- rcu_idle_enter();
- nsecs = disable_timer();
- idle_sleep(nsecs);
- rcu_idle_exit();
- tick_nohz_idle_exit();
- }
-}
-
-void cpu_idle(void)
+void arch_cpu_idle(void)
{
cpu_tasks[current_thread_info()->cpu].pid = os_getpid();
- default_idle();
+ local_irq_enable();
}
int __cant_sleep(void) {
--
1.8.1.4
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