Merge branch 'core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (63 commits)
  stacktrace: provide save_stack_trace_tsk() weak alias
  rcu: provide RCU options on non-preempt architectures too
  printk: fix discarding message when recursion_bug
  futex: clean up futex_(un)lock_pi fault handling
  "Tree RCU": scalable classic RCU implementation
  futex: rename field in futex_q to clarify single waiter semantics
  x86/swiotlb: add default swiotlb_arch_range_needs_mapping
  x86/swiotlb: add default phys<->bus conversion
  x86: unify pci iommu setup and allow swiotlb to compile for 32 bit
  x86: add swiotlb allocation functions
  swiotlb: consolidate swiotlb info message printing
  swiotlb: support bouncing of HighMem pages
  swiotlb: factor out copy to/from device
  swiotlb: add arch hook to force mapping
  swiotlb: allow architectures to override phys<->bus<->phys conversions
  swiotlb: add comment where we handle the overflow of a dma mask on 32 bit
  rcu: fix rcutorture behavior during reboot
  resources: skip sanity check of busy resources
  swiotlb: move some definitions to header
  swiotlb: allow architectures to override swiotlb pool allocation
  ...

Fix up trivial conflicts in
  arch/x86/kernel/Makefile
  arch/x86/mm/init_32.c
  include/linux/hardirq.h
as per Ingo's suggestions.

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c
index f4e55be2eea9..afad9f5ac0ac 100644
--- a/arch/powerpc/platforms/pseries/rtasd.c
+++ b/arch/powerpc/platforms/pseries/rtasd.c
@@ -208,6 +208,7 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal)
                 break;
         case ERR_TYPE_KERNEL_PANIC:
         default:
+                WARN_ON_ONCE(!irqs_disabled()); /* @@@ DEBUG @@@ */
                 spin_unlock_irqrestore(&rtasd_log_lock, s);
                 return;
         }
@@ -227,6 +228,7 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal)
         /* Check to see if we need to or have stopped logging */
         if (fatal || !logging_enabled) {
                 logging_enabled = 0;
+                WARN_ON_ONCE(!irqs_disabled()); /* @@@ DEBUG @@@ */
                 spin_unlock_irqrestore(&rtasd_log_lock, s);
                 return;
         }
@@ -249,11 +251,13 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal)
                 else
                         rtas_log_start += 1;
 
+                WARN_ON_ONCE(!irqs_disabled()); /* @@@ DEBUG @@@ */
                 spin_unlock_irqrestore(&rtasd_log_lock, s);
                 wake_up_interruptible(&rtas_log_wait);
                 break;
         case ERR_TYPE_KERNEL_PANIC:
         default:
+                WARN_ON_ONCE(!irqs_disabled()); /* @@@ DEBUG @@@ */
                 spin_unlock_irqrestore(&rtasd_log_lock, s);
                 return;
         }