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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2008-04-17 07:46:25 +0200 |
|---|---|---|
| committer | Heiko Carstens <heiko.carstens@de.ibm.com> | 2008-04-17 07:47:05 +0200 |
| commit | 5a62b192196af9a798e2f2f4c6a1324e7edf2f4b (patch) | |
| tree | 0aa96ba3153b257000be22e49befbde2b5bd6917 /arch/s390/kernel/process.c | |
| parent | d7b906897e9caae452947e33674df0a2d6f7e10f (diff) | |
| download | linux-5a62b192196af9a798e2f2f4c6a1324e7edf2f4b.tar.gz | |
[S390] Convert s390 to GENERIC_CLOCKEVENTS.
This way we get rid of s390's NO_IDLE_HZ and use the generic dynticks
variant instead. In addition we get high resolution timers for free.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/process.c')
| -rw-r--r-- | arch/s390/kernel/process.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index eb768ce88672e9..df033249f6b15c 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -36,6 +36,7 @@ #include <linux/module.h> #include <linux/notifier.h> #include <linux/utsname.h> +#include <linux/tick.h> #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/system.h> @@ -167,9 +168,10 @@ static void default_idle(void) void cpu_idle(void) { for (;;) { + tick_nohz_stop_sched_tick(); while (!need_resched()) default_idle(); - + tick_nohz_restart_sched_tick(); preempt_enable_no_resched(); schedule(); preempt_disable(); |