X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-v850%2Fatomic.h;h=8284aa7363f21ff7c75fb4377a297b34ba2fb2b6;hb=746550cff061581f89c687ada8523670768364f2;hp=582de7674ea8fa125e820b413c8b1b460fbfa286;hpb=86090fcac5e27b630656fe3d963a6b80e26dac44;p=linux-2.6.git

diff --git a/include/asm-v850/atomic.h b/include/asm-v850/atomic.h
index 582de7674..8284aa736 100644
--- a/include/asm-v850/atomic.h
+++ b/include/asm-v850/atomic.h
@@ -76,6 +76,16 @@ static __inline__ void atomic_clear_mask (unsigned long mask, unsigned long *add
 #define atomic_inc(v) 		atomic_inc_return (v)
 #define atomic_dec(v) 		atomic_dec_return (v)
 
+/*
+ * atomic_inc_and_test - increment and test
+ * @v: pointer of type atomic_t
+ *
+ * Atomically increments @v by 1
+ * and returns true if the result is zero, or false for all
+ * other cases.
+ */
+#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
+
 #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_add_negative(i,v)	(atomic_add_return ((i), (v)) < 0)