X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-ia64%2Fatomic.h;h=569ec7574baf24b01ce450c4f6a5cdc32d805a60;hb=a2f44b27303a5353859d77a3e96a1d3f33f56ab7;hp=f2e179d4bb76d989e1265f988b6085d31c9e492e;hpb=daddc0d38b3571bed170afa273a49a0eba090c1e;p=linux-2.6.git

diff --git a/include/asm-ia64/atomic.h b/include/asm-ia64/atomic.h
index f2e179d4b..569ec7574 100644
--- a/include/asm-ia64/atomic.h
+++ b/include/asm-ia64/atomic.h
@@ -56,7 +56,7 @@ ia64_atomic64_add (__s64 i, atomic64_t *v)
 		CMPXCHG_BUGCHECK(v);
 		old = atomic_read(v);
 		new = old + i;
-	} while (ia64_cmpxchg(acq, v, old, new, sizeof(atomic_t)) != old);
+	} while (ia64_cmpxchg(acq, v, old, new, sizeof(atomic64_t)) != old);
 	return new;
 }
 
@@ -84,10 +84,29 @@ ia64_atomic64_sub (__s64 i, atomic64_t *v)
 		CMPXCHG_BUGCHECK(v);
 		old = atomic_read(v);
 		new = old - i;
-	} while (ia64_cmpxchg(acq, v, old, new, sizeof(atomic_t)) != old);
+	} while (ia64_cmpxchg(acq, v, old, new, sizeof(atomic64_t)) != old);
 	return new;
 }
 
+#define atomic_cmpxchg(v, old, new) ((int)cmpxchg(&((v)->counter), old, new))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
+#define atomic_add_unless(v, a, u)				\
+({								\
+	int c, old;						\
+	c = atomic_read(v);					\
+	for (;;) {						\
+		if (unlikely(c == (u)))				\
+			break;					\
+		old = atomic_cmpxchg((v), c, c + (a));		\
+		if (likely(old == c))				\
+			break;					\
+		c = old;					\
+	}							\
+	c != (u);						\
+})
+#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+
 #define atomic_add_return(i,v)						\
 ({									\
 	int __ia64_aar_i = (i);						\
@@ -159,10 +178,10 @@ atomic64_add_negative (__s64 i, atomic64_t *v)
 
 #define atomic_sub_and_test(i,v)	(atomic_sub_return((i), (v)) == 0)
 #define atomic_dec_and_test(v)		(atomic_sub_return(1, (v)) == 0)
-#define atomic_inc_and_test(v)		(atomic_add_return(1, (v)) != 0)
+#define atomic_inc_and_test(v)		(atomic_add_return(1, (v)) == 0)
 #define atomic64_sub_and_test(i,v)	(atomic64_sub_return((i), (v)) == 0)
 #define atomic64_dec_and_test(v)	(atomic64_sub_return(1, (v)) == 0)
-#define atomic64_inc_and_test(v)	(atomic64_add_return(1, (v)) != 0)
+#define atomic64_inc_and_test(v)	(atomic64_add_return(1, (v)) == 0)
 
 #define atomic_add(i,v)			atomic_add_return((i), (v))
 #define atomic_sub(i,v)			atomic_sub_return((i), (v))
@@ -180,4 +199,5 @@ atomic64_add_negative (__s64 i, atomic64_t *v)
 #define smp_mb__before_atomic_inc()	barrier()
 #define smp_mb__after_atomic_inc()	barrier()
 
+#include <asm-generic/atomic.h>
 #endif /* _ASM_IA64_ATOMIC_H */