Define atomic_sub_and_test to fix build failures.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
#define atomic_dec_and_test(v) (atomic_dec_return(v) == 0)
+#define atomic_sub_and_test(i,v) (atomic_sub_return((i),(v)) == 0)
+
#define ATOMIC_INIT(i) ((atomic_t) { (i) })
#define smp_mb__before_atomic_dec() smp_mb()
#define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
#define atomic64_dec_and_test(v) (atomic64_dec_return(v) == 0)
+#define atomic64_sub_and_test(i,v) (atomic64_sub_return((i),(v)) == 0)
#endif /* __LP64__ */