1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 08083186e54f..7d7b77da9716 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -242,6 +242,7 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
                 __read_once_size(&(x), __u.__c, sizeof(x));             \
         else                                                            \
                 __read_once_size_nocheck(&(x), __u.__c, sizeof(x));     \
+        smp_read_barrier_depends(); /* Enforce dependency ordering from x */ \
         __u.__val;                                                      \
 })
 #define READ_ONCE(x) __READ_ONCE(x, 1)