diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-16 12:32:42 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-16 12:32:42 -0700 |
| commit | 467a3ca5cab64a16b5ec46ebb1895c84c280dcfe (patch) | |
| tree | 68096d5b17e884d270420d50e466186c73019830 /arch/powerpc/platforms/pseries/processor_idle.c | |
| parent | 40c9f61eae9098212b6906f29f30f08f7a19b5e2 (diff) | |
| parent | 84a1caf1453c3d44050bd22db958af4a7f99315c (diff) | |
Merge branch 'v3.6-rc7' into tty-next
This is to sync up on Linus's branch to get the other tty and core changes.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/powerpc/platforms/pseries/processor_idle.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/processor_idle.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/arch/powerpc/platforms/pseries/processor_idle.c b/arch/powerpc/platforms/pseries/processor_idle.c index 41a34bc4a9a..c71be66bd5d 100644 --- a/arch/powerpc/platforms/pseries/processor_idle.c +++ b/arch/powerpc/platforms/pseries/processor_idle.c @@ -99,15 +99,18 @@ out: static void check_and_cede_processor(void) { /* - * Interrupts are soft-disabled at this point, - * but not hard disabled. So an interrupt might have - * occurred before entering NAP, and would be potentially - * lost (edge events, decrementer events, etc...) unless - * we first hard disable then check. + * Ensure our interrupt state is properly tracked, + * also checks if no interrupt has occurred while we + * were soft-disabled */ - hard_irq_disable(); - if (get_paca()->irq_happened == 0) + if (prep_irq_for_idle()) { cede_processor(); +#ifdef CONFIG_TRACE_IRQFLAGS + /* Ensure that H_CEDE returns with IRQs on */ + if (WARN_ON(!(mfmsr() & MSR_EE))) + __hard_irq_enable(); +#endif + } } static int dedicated_cede_loop(struct cpuidle_device *dev, |