[PATCH] i386 prepare for dyntick

Prepare i386 for dyntick: idle handler callbacks.

Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: john stultz <[email protected]>
Cc: Roman Zippel <[email protected]>
Cc: Andi Kleen <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 7845d480c29359a166314cad7d2c7781aa11a3e3..bea304d48cdbb8fdc150e9033ad0e53a3961c439 100644 (file)
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -38,6 +38,7 @@
 #include <linux/ptrace.h>
 #include <linux/random.h>
 #include <linux/personality.h>
+#include <linux/tick.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -211,6 +212,7 @@ void cpu_idle(void)
 
        /* endless idle loop with no priority at all */
        while (1) {
+               tick_nohz_stop_sched_tick();
                while (!need_resched()) {
                        void (*idle)(void);
 
@@ -238,6 +240,7 @@ void cpu_idle(void)
                        idle();
                        __exit_idle();
                }
+               tick_nohz_restart_sched_tick();
                preempt_enable_no_resched();
                schedule();
                preempt_disable();