MINOR: threads/atomic: implement pl_bts() on non-x86
[ plock commit da17ba320aad3a8faf08e36fca604de9cad21fdd ]
This one was missing, it can be done using sync_fetch_and_or().
diff --git a/include/import/atomic-ops.h b/include/import/atomic-ops.h
index f613a0b..dee0f88 100644
--- a/include/import/atomic-ops.h
+++ b/include/import/atomic-ops.h
@@ -511,6 +511,9 @@
#define pl_or(ptr, x) ({ __sync_or_and_fetch((ptr), (x)); })
#define pl_xor(ptr, x) ({ __sync_xor_and_fetch((ptr), (x)); })
#define pl_sub(ptr, x) ({ __sync_sub_and_fetch((ptr), (x)); })
+#define pl_bts(ptr, bit) ({ typeof(*(ptr)) __pl_t = (1u << (bit)); \
+ __sync_fetch_and_or((ptr), __pl_t) & __pl_t; \
+ })
#define pl_xadd(ptr, x) ({ __sync_fetch_and_add((ptr), (x)); })
#define pl_cmpxchg(ptr, o, n) ({ __sync_val_compare_and_swap((ptr), (o), (n)); })
#define pl_xchg(ptr, x) ({ typeof(*(ptr)) __pl_t; \