arch,parisc: Convert smp_mb__*()

parisc fully relies on asm-generic/barrier.h, therefore its smp_mb()
is barrier and the default implementation suffices.

Signed-off-by: Peter Zijlstra <[e-mail]>
Acked-by: Paul E. McKenney <[e-mail]>
Link: http://lkml.kernel.org/n/[e-mail]
Cc: Helge Deller <[e-mail]>
Cc: James E.J. Bottomley <[e-mail]>
Cc: Linus Torvalds <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Signed-off-by: Ingo Molnar <[e-mail]>

arch/parisc/include/asm/atomic.h

···
 
 #include <linux/types.h>
 #include <asm/cmpxchg.h>
+#include <asm/barrier.h>
 
 /*
  * Atomic operations that C can't guarantee us.  Useful for
···
 #define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
 
 #define ATOMIC_INIT(i)	{ (i) }
-
-#define smp_mb__before_atomic_dec()	smp_mb()
-#define smp_mb__after_atomic_dec()	smp_mb()
-#define smp_mb__before_atomic_inc()	smp_mb()
-#define smp_mb__after_atomic_inc()	smp_mb()
 
 #ifdef CONFIG_64BIT
 

arch/parisc/include/asm/bitops.h

···
 #include <linux/compiler.h>
 #include <asm/types.h>		/* for BITS_PER_LONG/SHIFT_PER_LONG */
 #include <asm/byteorder.h>
+#include <asm/barrier.h>
 #include <linux/atomic.h>
 
 /*
···
 
 #define CHOP_SHIFTCOUNT(x) (((unsigned long) (x)) & (BITS_PER_LONG - 1))
 
-
-#define smp_mb__before_clear_bit()      smp_mb()
-#define smp_mb__after_clear_bit()       smp_mb()
 
 /* See http://marc.theaimsgroup.com/?t=108826637900003 for discussion
  * on use of volatile and __*_bit() (set/clear/change):