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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-03-09 21:35:53 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-03-09 21:35:53 +0100 |
| commit | 263a5c8e16c34199ddf6de3f102e789ffa3ee26e (patch) | |
| tree | 4f049e339d522b2ab0ba3bed3ec217e4bbc83d35 /arch/x86/xen/smp.c | |
| parent | Revert "sysfs: Kill nlink counting." (diff) | |
| parent | Linux 3.3-rc6 (diff) | |
| download | linux-263a5c8e16c34199ddf6de3f102e789ffa3ee26e.tar.xz linux-263a5c8e16c34199ddf6de3f102e789ffa3ee26e.zip | |
Merge 3.3-rc6 into driver-core-next
This was done to resolve a conflict in the drivers/base/cpu.c file.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/xen/smp.c')
| -rw-r--r-- | arch/x86/xen/smp.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index 041d4fe9dfe4..501d4e0244ba 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -409,6 +409,13 @@ static void __cpuinit xen_play_dead(void) /* used only with HOTPLUG_CPU */ play_dead_common(); HYPERVISOR_vcpu_op(VCPUOP_down, smp_processor_id(), NULL); cpu_bringup(); + /* + * Balance out the preempt calls - as we are running in cpu_idle + * loop which has been called at bootup from cpu_bringup_and_idle. + * The cpucpu_bringup_and_idle called cpu_bringup which made a + * preempt_disable() So this preempt_enable will balance it out. + */ + preempt_enable(); } #else /* !CONFIG_HOTPLUG_CPU */ |