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| author | Paul Mackerras <paulus@samba.org> | 2005-11-10 11:06:04 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-11-10 11:06:04 +1100 |
| commit | 31e7f1ff3c5d39a70da85f7d81a1ab1f4e64fa97 (patch) | |
| tree | a6cb8f14b1182e5dce55d13e52c1182a8c7e0402 /arch/s390/kernel/process.c | |
| parent | fca5dcd4835ed09bb1a48a355344aff7a25c76e0 (diff) | |
| parent | 6730c3c14421b7c924d06e31bb66e0adad225547 (diff) | |
| download | kernel_samsung_tuna-31e7f1ff3c5d39a70da85f7d81a1ab1f4e64fa97.zip kernel_samsung_tuna-31e7f1ff3c5d39a70da85f7d81a1ab1f4e64fa97.tar.gz kernel_samsung_tuna-31e7f1ff3c5d39a70da85f7d81a1ab1f4e64fa97.tar.bz2 | |
Merge ../linux-2.6
Diffstat (limited to 'arch/s390/kernel/process.c')
| -rw-r--r-- | arch/s390/kernel/process.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 9f3dff6..78b64fe 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -99,15 +99,15 @@ void default_idle(void) { int cpu, rc; + /* CPU is going idle. */ + cpu = smp_processor_id(); + local_irq_disable(); - if (need_resched()) { + if (need_resched()) { local_irq_enable(); - schedule(); - return; - } + return; + } - /* CPU is going idle. */ - cpu = smp_processor_id(); rc = notifier_call_chain(&idle_chain, CPU_IDLE, (void *)(long) cpu); if (rc != NOTIFY_OK && rc != NOTIFY_DONE) BUG(); @@ -120,7 +120,7 @@ void default_idle(void) __ctl_set_bit(8, 15); #ifdef CONFIG_HOTPLUG_CPU - if (cpu_is_offline(smp_processor_id())) + if (cpu_is_offline(cpu)) cpu_die(); #endif @@ -139,8 +139,14 @@ void default_idle(void) void cpu_idle(void) { - for (;;) - default_idle(); + for (;;) { + while (!need_resched()) + default_idle(); + + preempt_enable_no_resched(); + schedule(); + preempt_disable(); + } } void show_regs(struct pt_regs *regs) |