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| author | Paul Mackerras <paulus@samba.org> | 2008-01-24 10:07:21 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-01-24 10:07:21 +1100 |
| commit | 9156ad48338e0306e508ead5c0d9986050744475 (patch) | |
| tree | 37f3a90e38190052ecf3cdf9171dfdddd37b56fd /arch/x86/kernel/process_64.c | |
| parent | fa28237cfcc5827553044cbd6ee52e33692b0faa (diff) | |
| parent | 8f7b3d156d348b6766833cd4e272d0d19b501e64 (diff) | |
| download | talos-op-linux-9156ad48338e0306e508ead5c0d9986050744475.tar.gz talos-op-linux-9156ad48338e0306e508ead5c0d9986050744475.zip | |
Merge branch 'linux-2.6'
Diffstat (limited to 'arch/x86/kernel/process_64.c')
| -rw-r--r-- | arch/x86/kernel/process_64.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 6309b275cb9c..ab79e1dfa023 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -135,6 +135,10 @@ static void poll_idle (void) cpu_relax(); } +static void do_nothing(void *unused) +{ +} + void cpu_idle_wait(void) { unsigned int cpu, this_cpu = get_cpu(); @@ -160,6 +164,13 @@ void cpu_idle_wait(void) cpu_clear(cpu, map); } cpus_and(map, map, cpu_online_map); + /* + * We waited 1 sec, if a CPU still did not call idle + * it may be because it is in idle and not waking up + * because it has nothing to do. + * Give all the remaining CPUS a kick. + */ + smp_call_function_mask(map, do_nothing, 0, 0); } while (!cpus_empty(map)); set_cpus_allowed(current, tmp); |
