Use new atomic API in runtime system

All uses of the old deprecated atomic API in the runtime system
have been replaced with the use of the new atomic API. In a lot of
places this change imply a relaxation of memory barriers used.

1 files changed, 3 insertions, 7 deletions

diff --git a/erts/emulator/beam/erl_bits.c b/erts/emulator/beam/erl_bits.c
index e56084b9cb..326a5c136b 100644
--- a/erts/emulator/beam/erl_bits.c
+++ b/erts/emulator/beam/erl_bits.c
@@ -76,14 +76,12 @@ struct erl_bits_state ErlBitsState;
 #define byte_buf	(ErlBitsState.byte_buf_)
 #define byte_buf_len	(ErlBitsState.byte_buf_len_)
 
-#ifdef ERTS_SMP
 static erts_smp_atomic_t bits_bufs_size;
-#endif
 
 Uint
 erts_bits_bufs_size(void)
 {
-    return 0;
+    return (Uint) erts_smp_atomic_read_nob(&bits_bufs_size);
 }
 
 #if !defined(ERTS_SMP)
@@ -109,8 +107,8 @@ erts_bits_destroy_state(ERL_BITS_PROTO_0)
 void
 erts_init_bits(void)
 {
+    erts_smp_atomic_init_nob(&bits_bufs_size, 0);
 #if defined(ERTS_SMP)
-    erts_smp_atomic_init(&bits_bufs_size, 0);
     /* erl_process.c calls erts_bits_init_state() on all state instances */
 #else
     ERL_BITS_DECLARE_STATEP;
@@ -713,9 +711,7 @@ static void
 ERTS_INLINE need_byte_buf(ERL_BITS_PROTO_1(int need))
 {
     if (byte_buf_len < need) {
-#ifdef ERTS_SMP
-	erts_smp_atomic_add(&bits_bufs_size, need - byte_buf_len);
-#endif
+	erts_smp_atomic_add_nob(&bits_bufs_size, need - byte_buf_len);
 	byte_buf_len = need;
 	byte_buf = erts_realloc(ERTS_ALC_T_BITS_BUF, byte_buf, byte_buf_len);
     }