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-rw-r--r--include/asm-s390/atomic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-s390/atomic.h b/include/asm-s390/atomic.h
index af20c746248..c17bdbf2206 100644
--- a/include/asm-s390/atomic.h
+++ b/include/asm-s390/atomic.h
@@ -215,6 +215,8 @@ static __inline__ void atomic64_set_mask(unsigned long mask, atomic64_t * v)
__CSG_LOOP(v, mask, "ogr");
}
+#define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
+
static __inline__ long long atomic64_cmpxchg(atomic64_t *v,
long long old, long long new)
{