diff options
| -rw-r--r-- | arch/x86/lib/atomic64_32.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/x86/lib/atomic64_32.c b/arch/x86/lib/atomic64_32.c index d21e725d3d8..afa5d444918 100644 --- a/arch/x86/lib/atomic64_32.c +++ b/arch/x86/lib/atomic64_32.c @@ -67,13 +67,9 @@ void atomic64_set(atomic64_t *ptr, u64 new_val) */ u64 atomic64_read(atomic64_t *ptr) { - u64 curr_val; + u64 old = 1LL << 32; - do { - curr_val = __atomic64_read(ptr); - } while (atomic64_cmpxchg(ptr, curr_val, curr_val) != curr_val); - - return curr_val; + return cmpxchg8b(&ptr->counter, old, old); } /** |