X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-m68knommu%2Fatomic.h;h=6c4e4b63e45454f018e5f3bfc599a506bcaa4827;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=b1957fba083b9e7a7b8b975782d8863a49a95559;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/include/asm-m68knommu/atomic.h b/include/asm-m68knommu/atomic.h
index b1957fba0..6c4e4b63e 100644
--- a/include/asm-m68knommu/atomic.h
+++ b/include/asm-m68knommu/atomic.h
@@ -100,7 +100,7 @@ static __inline__ void atomic_set_mask(unsigned long mask, unsigned long *v)
 #define smp_mb__before_atomic_inc()    barrier()
 #define smp_mb__after_atomic_inc() barrier()
 
-extern __inline__ int atomic_add_return(int i, atomic_t * v)
+static inline int atomic_add_return(int i, atomic_t * v)
 {
 	unsigned long temp, flags;
 
@@ -115,7 +115,7 @@ extern __inline__ int atomic_add_return(int i, atomic_t * v)
 
 #define atomic_add_negative(a, v)	(atomic_add_return((a), (v)) < 0)
 
-extern __inline__ int atomic_sub_return(int i, atomic_t * v)
+static inline int atomic_sub_return(int i, atomic_t * v)
 {
 	unsigned long temp, flags;
 
@@ -128,7 +128,21 @@ extern __inline__ int atomic_sub_return(int i, atomic_t * v)
 	return temp;
 }
 
+#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
+#define atomic_add_unless(v, a, u)				\
+({								\
+	int c, old;						\
+	c = atomic_read(v);					\
+	while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
+		c = old;					\
+	c != (u);						\
+})
+#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+
 #define atomic_dec_return(v) atomic_sub_return(1,(v))
 #define atomic_inc_return(v) atomic_add_return(1,(v))
 
+#include <asm-generic/atomic.h>
 #endif /* __ARCH_M68KNOMMU_ATOMIC __ */