Commit-ID: 2db56e8606016e33903c64feaed989ffecd66a1b
Gitweb: http://git.kernel.org/tip/2db56e8606016e33903c64feaed989ffecd66a1b
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
AuthorDate: Thu, 13 Mar 2014 19:00:36 +0100
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Fri, 18 Apr 2014 14:20:37 +0200
arch,m68k: Convert smp_mb__*()
m68k uses asm-generic/barrier.h and its smp_mb() is barrier(),
therefore we can use the generic versions that use smp_mb().
Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Acked-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-s5dvosrb7qhvpmtaffwfn0zg@xxxxxxxxxxxxxx
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-m68k@xxxxxxxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/m68k/include/asm/atomic.h | 8 +-------
arch/m68k/include/asm/bitops.h | 7 +------
2 files changed, 2 insertions(+), 13 deletions(-)
diff --git a/arch/m68k/include/asm/atomic.h b/arch/m68k/include/asm/atomic.h
index f4e32de..5569521 100644
--- a/arch/m68k/include/asm/atomic.h
+++ b/arch/m68k/include/asm/atomic.h
@@ -4,6 +4,7 @@
#include <linux/types.h>
#include <linux/irqflags.h>
#include <asm/cmpxchg.h>
+#include <asm/barrier.h>
/*
* Atomic operations that C can't guarantee us. Useful for
@@ -209,11 +210,4 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
return c;
}
-
-/* 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()
-
#endif /* __ARCH_M68K_ATOMIC __ */
diff --git a/arch/m68k/include/asm/bitops.h b/arch/m68k/include/asm/bitops.h
index c6baa91..b4a9b0d 100644
--- a/arch/m68k/include/asm/bitops.h
+++ b/arch/m68k/include/asm/bitops.h
@@ -13,6 +13,7 @@
#endif
#include <linux/compiler.h>
+#include <asm/barrier.h>
/*
* Bit access functions vary across the ColdFire and 68k families.
@@ -67,12 +68,6 @@ static inline void bfset_mem_set_bit(int nr, volatile unsigned long *vaddr)
#define __set_bit(nr, vaddr) set_bit(nr, vaddr)
-/*
- * clear_bit() doesn't provide any barrier for the compiler.
- */
-#define smp_mb__before_clear_bit() barrier()
-#define smp_mb__after_clear_bit() barrier()
-
static inline void bclr_reg_clear_bit(int nr, volatile unsigned long *vaddr)
{
char *p = (char *)vaddr + (nr ^ 31) / 8;
--
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