openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

[PATCH] i386 prepare for dyntick 

Prepare i386 for dyntick: idle handler callbacks.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ingo Molnar 2007-02-16 01:28:07 -08:00 committed by Linus Torvalds
parent d36b49b910
commit 741673473a
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/i386/kernel/process.c
View File

@ -38,6 +38,7 @@
#include <linux/ptrace.h> #include <linux/ptrace.h>
#include <linux/random.h> #include <linux/random.h>
#include <linux/personality.h> #include <linux/personality.h>
#include <linux/tick.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <asm/pgtable.h> #include <asm/pgtable.h>
@ -211,6 +212,7 @@ void cpu_idle(void)
/* endless idle loop with no priority at all */ /* endless idle loop with no priority at all */
while (1) { while (1) {
tick_nohz_stop_sched_tick();
while (!need_resched()) { while (!need_resched()) {
void (*idle)(void); void (*idle)(void);
@ -238,6 +240,7 @@ void cpu_idle(void)
idle(); idle();
__exit_idle(); __exit_idle();
} }
tick_nohz_restart_sched_tick();
preempt_enable_no_resched(); preempt_enable_no_resched();
schedule(); schedule();
preempt_disable(); preempt_disable();