diff options
author | Jiri Kosina <jkosina@suse.cz> | 2013-03-27 14:02:27 +0100 |
---|---|---|
committer | Jiri Kosina <jkosina@suse.cz> | 2013-03-27 14:02:27 +0100 |
commit | b3fecf8cab6441527ab057c99d7e6a6d7f6713e5 (patch) | |
tree | d327499840a25fbd1f81e49d5cb6769bdad382f5 /arch/powerpc/platforms/pseries/hotplug-cpu.c | |
parent | 5b62efd8250d6a751c31d1972e96bfccd19c4679 (diff) | |
parent | 83a44ac8bf4a8e6cbbf0c00ff281a482778f708a (diff) | |
download | lwn-b3fecf8cab6441527ab057c99d7e6a6d7f6713e5.tar.gz lwn-b3fecf8cab6441527ab057c99d7e6a6d7f6713e5.zip |
Merge branch 'for-3.10/hid-driver-transport-cleanups' into for-3.10/mt-hybrid-finger-pen
Diffstat (limited to 'arch/powerpc/platforms/pseries/hotplug-cpu.c')
-rw-r--r-- | arch/powerpc/platforms/pseries/hotplug-cpu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c index a38956269fbf..217ca5c75b20 100644 --- a/arch/powerpc/platforms/pseries/hotplug-cpu.c +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c @@ -127,9 +127,16 @@ static void pseries_mach_cpu_die(void) get_lppaca()->donate_dedicated_cpu = 1; while (get_preferred_offline_state(cpu) == CPU_STATE_INACTIVE) { + while (!prep_irq_for_idle()) { + local_irq_enable(); + local_irq_disable(); + } + extended_cede_processor(cede_latency_hint); } + local_irq_disable(); + if (!get_lppaca()->shared_proc) get_lppaca()->donate_dedicated_cpu = 0; get_lppaca()->idle = 0; @@ -137,6 +144,7 @@ static void pseries_mach_cpu_die(void) if (get_preferred_offline_state(cpu) == CPU_STATE_ONLINE) { unregister_slb_shadow(hwcpu); + hard_irq_disable(); /* * Call to start_secondary_resume() will not return. * Kernel stack will be reset and start_secondary() |