Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (78 commits)
  [PATCH] powerpc: Add FSL SEC node to documentation
  [PATCH] macintosh: tidy-up driver_register() return values
  [PATCH] powerpc: tidy-up of_register_driver()/driver_register() return values
  [PATCH] powerpc: via-pmu warning fix
  [PATCH] macintosh: cleanup the use of i2c headers
  [PATCH] powerpc: dont allow old RTC to be selected
  [PATCH] powerpc: make powerbook_sleep_grackle static
  [PATCH] powerpc: Fix warning in add_memory
  [PATCH] powerpc: update mailing list addresses
  [PATCH] powerpc: Remove calculation of io hole
  [PATCH] powerpc: iseries: Add bootargs to /chosen
  [PATCH] powerpc: iseries: Add /system-id, /model and /compatible
  [PATCH] powerpc: Add strne2a() to convert a string from EBCDIC to ASCII
  [PATCH] powerpc: iseries: Make more stuff static in platforms/iseries/mf.c
  [PATCH] powerpc: iseries: Remove pointless iSeries_(restart|power_off|halt)
  [PATCH] powerpc: iseries: mf related cleanups
  [PATCH] powerpc: Replace platform_is_lpar() with a firmware feature
  [PATCH] powerpc: trivial: Cleanup whitespace in cputable.h
  [PATCH] powerpc: Remove unused iommu_off logic from pSeries_init_early()
  [PATCH] powerpc: Unconfuse htab_bolt_mapping() callers
  ...

1 files changed, 22 insertions, 10 deletions

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index d1fffce86df9..24dc8117b822 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -1,6 +1,4 @@
 /*
- *  arch/ppc/kernel/irq.c
- *
  *  Derived from arch/i386/kernel/irq.c
  *    Copyright (C) 1992 Linus Torvalds
  *  Adapted from arch/i386 by Gary Thomas
@@ -371,6 +369,7 @@ unsigned int real_irq_to_virt_slowpath(unsigned int real_irq)
         return NO_IRQ;
 
 }
+#endif /* CONFIG_PPC64 */
 
 #ifdef CONFIG_IRQSTACKS
 struct thread_info *softirq_ctx[NR_CPUS];
@@ -394,10 +393,24 @@ void irq_ctx_init(void)
         }
 }
 
+static inline void do_softirq_onstack(void)
+{
+        struct thread_info *curtp, *irqtp;
+
+        curtp = current_thread_info();
+        irqtp = softirq_ctx[smp_processor_id()];
+        irqtp->task = curtp->task;
+        call_do_softirq(irqtp);
+        irqtp->task = NULL;
+}
+
+#else
+#define do_softirq_onstack()    __do_softirq()
+#endif /* CONFIG_IRQSTACKS */
+
 void do_softirq(void)
 {
         unsigned long flags;
-        struct thread_info *curtp, *irqtp;
 
         if (in_interrupt())
                 return;
@@ -405,19 +418,18 @@ void do_softirq(void)
         local_irq_save(flags);
 
         if (local_softirq_pending()) {
-                curtp = current_thread_info();
-                irqtp = softirq_ctx[smp_processor_id()];
-                irqtp->task = curtp->task;
-                call_do_softirq(irqtp);
-                irqtp->task = NULL;
+                account_system_vtime(current);
+                local_bh_disable();
+                do_softirq_onstack();
+                account_system_vtime(current);
+                __local_bh_enable();
         }
 
         local_irq_restore(flags);
 }
 EXPORT_SYMBOL(do_softirq);
 
-#endif /* CONFIG_IRQSTACKS */
-
+#ifdef CONFIG_PPC64
 static int __init setup_noirqdistrib(char *str)
 {
         distribute_irqs = 0;