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authorJiri Kosina <jkosina@suse.cz>2013-03-27 14:02:27 +0100
committerJiri Kosina <jkosina@suse.cz>2013-03-27 14:02:27 +0100
commitb3fecf8cab6441527ab057c99d7e6a6d7f6713e5 (patch)
treed327499840a25fbd1f81e49d5cb6769bdad382f5 /arch/powerpc/platforms/pseries/hotplug-cpu.c
parent5b62efd8250d6a751c31d1972e96bfccd19c4679 (diff)
parent83a44ac8bf4a8e6cbbf0c00ff281a482778f708a (diff)
downloadlwn-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.c8
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()