Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (141 commits)
  MIPS: Alchemy: defconfig updates
  MIPS: Alchemy: Fix Au1100 ethernet build failure
  MIPS: Alchemy: Repair db1500/bosporus builds
  MIPS: ARC: Cleanup unused definitions from sgialib.h
  MIPS: Cobalt: convert legacy port addresses to GT-64111 bus addresses
  MIPS: Alchemy: use 36bit addresses for PCMCIA resources.
  MIPS: Cobalt: Fix theoretical port aliasing issue
  MIPS: Use ALIGN(x, bytes) instead of __ALIGN_MASK(x, bytes - 1)
  MIPS: Crazy spinlock speed test.
  MIPS: Optimize spinlocks.
  MIPS: Alchemy: devboard PM needs to save CPLD registers.
  MIPS: PowerTV: Eliminate duplicate opcode definition macros
  MIPS: Lemote 2F: Move printks out of port_access_lock.
  MIPS: PNX833x: Convert IRQ controller locks to raw spinlocks.
  MIPS: Octeon: Replace spinlock with raw_spinlocks in dma-octeon.c.
  MIPS: Octeon: Replace rwlocks in irq_chip handlers with raw_spinlocks.
  MIPS: Octeon: Convert octeon_irq_msi_lock to raw spinlock.
  MIPS: Loongson: Remove pointless sample_lock from oprofile code.
  MIPS: SNI: Convert sni_rm200_i8259A_lock to raw spinlock.
  MIPS: i8259: Convert IRQ controller lock to raw spinlock.
  ...

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/mips/include/asm/system.h b/arch/mips/include/asm/system.h
index 83b5509e09e..bb937ccfba1 100644
--- a/arch/mips/include/asm/system.h
+++ b/arch/mips/include/asm/system.h
@@ -95,6 +95,8 @@ static inline unsigned long __xchg_u32(volatile int * m, unsigned int val)
 {
         __u32 retval;
 
+        smp_mb__before_llsc();
+
         if (kernel_uses_llsc && R10000_LLSC_WAR) {
                 unsigned long dummy;
 
@@ -147,6 +149,8 @@ static inline __u64 __xchg_u64(volatile __u64 * m, __u64 val)
 {
         __u64 retval;
 
+        smp_mb__before_llsc();
+
         if (kernel_uses_llsc && R10000_LLSC_WAR) {
                 unsigned long dummy;