vserver 1.9.5.x5

[linux-2.6.git] / include / asm-sparc / atomic.h

diff --git a/include/asm-sparc/atomic.h b/include/asm-sparc/atomic.h
index fe210f3..37f6ab6 100644 (file)
--- a/include/asm-sparc/atomic.h
+++ b/include/asm-sparc/atomic.h
@@ -46,6 +46,7 @@ extern void atomic_set(atomic_t *, int);
 #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
 
 #define atomic_dec_and_test(v) (atomic_dec_return(v) == 0)
+#define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
 
 /* This is the old 24-bit implementation.  It's still used internally
  * by some sparc-specific code, notably the semaphore implementation.