arch,frv: Convert smp_mb__*()

Because:

arch/frv/include/asm/smp.h:#error SMP not supported

smp_mb() is barrier() and we can use the default implementation that
uses smp_mb().

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-n296g51yzdu5ru1vp7mccxmf@git.kernel.org
Cc: David Howells <dhowells@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h
index b86329d0e31656775cb2c1a01c0f6665ea2c5b5a..f6c3a16901011b9fc6600a6a5c26ae42b004c2a8 100644 (file)
--- a/arch/frv/include/asm/atomic.h
+++ b/arch/frv/include/asm/atomic.h
@@ -17,6 +17,7 @@
 #include <linux/types.h>
 #include <asm/spr-regs.h>
 #include <asm/cmpxchg.h>
+#include <asm/barrier.h>
 
 #ifdef CONFIG_SMP
 #error not SMP safe
@@ -29,12 +30,6 @@
  * We do not have SMP systems, so we don't have to deal with that.
  */
 
-/* Atomic operations are already serializing */
-#define smp_mb__before_atomic_dec()    barrier()
-#define smp_mb__after_atomic_dec()     barrier()
-#define smp_mb__before_atomic_inc()    barrier()
-#define smp_mb__after_atomic_inc()     barrier()
-
 #define ATOMIC_INIT(i)         { (i) }
 #define atomic_read(v)         (*(volatile int *)&(v)->counter)
 #define atomic_set(v, i)       (((v)->counter) = (i))

diff --git a/arch/frv/include/asm/bitops.h b/arch/frv/include/asm/bitops.h
index 57bf85db893f167b0cb3695c26f6e546d0b7dd04..96de220ef131ed84d4a0499e3fec9fbc0861a482 100644 (file)
--- a/arch/frv/include/asm/bitops.h
+++ b/arch/frv/include/asm/bitops.h
@@ -25,12 +25,6 @@
 
 #include <asm-generic/bitops/ffz.h>
 
-/*
- * clear_bit() doesn't provide any barrier for the compiler.
- */
-#define smp_mb__before_clear_bit()     barrier()
-#define smp_mb__after_clear_bit()      barrier()
-
 #ifndef CONFIG_FRV_OUTOFLINE_ATOMIC_OPS
 static inline
 unsigned long atomic_test_and_ANDNOT_mask(unsigned long mask, volatile unsigned long *v)