Commit-ID: 8198c1696a2cd15d436ade172bfd8085f5f818d3 Gitweb: http://git.kernel.org/tip/8198c1696a2cd15d436ade172bfd8085f5f818d3 Author: Richard Weinberger <[email protected]> AuthorDate: Tue, 16 Apr 2013 23:53:29 +0200 Committer: Thomas Gleixner <[email protected]> CommitDate: Wed, 17 Apr 2013 10:39:38 +0200
um: Use generic idle loop Signed-off-by: Richard Weinberger <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> --- arch/um/Kconfig.common | 1 + arch/um/kernel/process.c | 27 ++++----------------------- 2 files changed, 5 insertions(+), 23 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..bbcef52 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -210,33 +210,14 @@ void initial_thread_cb(void (*proc)(void *), void *arg) kmalloc_ok = save_kmalloc_ok; } -void default_idle(void) +void arch_cpu_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) -{ cpu_tasks[current_thread_info()->cpu].pid = os_getpid(); - default_idle(); + nsecs = disable_timer(); + idle_sleep(nsecs); + local_irq_enable(); } int __cant_sleep(void) { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
