Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] update mach-types
  [ARM] Add cmpxchg support for ARMv6+ systems (v5)
  [ARM] barriers: improve xchg, bitops and atomic SMP barriers
  Gemini: Fix SRAM/ROM location after memory swap
  MAINTAINER: Add F: entries for Gemini and FA526
  [ARM] disable NX support for OABI-supporting kernels
  [ARM] add coherent DMA mask for mv643xx_eth
  [ARM] pxa/palm: fix PalmLD/T5/TX AC97 MFP
  [ARM] pxa: add parameter to clksrc_read() for pxa168/910
  [ARM] pxa: fix the incorrectly defined drive strength macros for pxa{168,910}
  [ARM] Orion: Remove explicit name for platform device resources
  [ARM] Kirkwood: Correct MPP for SATA activity/presence LEDs of QNAP TS-119/TS-219.
  [ARM] pxa/ezx: fix pin configuration for low power mode
  [ARM] pxa/spitz: provide spitz_ohci_exit() that unregisters USB_HOST GPIO
  [ARM] pxa: enable GPIO receivers after configuring pins
  [ARM] pxa: allow gpio_reset drive high during normal work
  [ARM] pxa: save/restore PGSR on suspend/resume.

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/lib/bitops.h b/arch/arm/lib/bitops.h
index 2e787d40d599..c7f2627385e7 100644
--- a/arch/arm/lib/bitops.h
+++ b/arch/arm/lib/bitops.h
@@ -18,12 +18,14 @@
         mov     r2, #1
         add     r1, r1, r0, lsr #3      @ Get byte offset
         mov     r3, r2, lsl r3          @ create mask
+        smp_dmb
 1:      ldrexb  r2, [r1]
         ands    r0, r2, r3              @ save old value of bit
         \instr  r2, r2, r3                      @ toggle bit
         strexb  ip, r2, [r1]
         cmp     ip, #0
         bne     1b
+        smp_dmb
         cmp     r0, #0
         movne   r0, #1
 2:      mov     pc, lr