diff --git a/libc/kernel/uapi/linux/membarrier.h b/libc/kernel/uapi/linux/membarrier.h
index 2f5ea7d..19cfeb2 100644
--- a/libc/kernel/uapi/linux/membarrier.h
+++ b/libc/kernel/uapi/linux/membarrier.h
@@ -20,8 +20,13 @@
 #define _UAPI_LINUX_MEMBARRIER_H
 enum membarrier_cmd {
   MEMBARRIER_CMD_QUERY = 0,
-  MEMBARRIER_CMD_SHARED = (1 << 0),
+  MEMBARRIER_CMD_GLOBAL = (1 << 0),
+  MEMBARRIER_CMD_GLOBAL_EXPEDITED = (1 << 1),
+  MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED = (1 << 2),
   MEMBARRIER_CMD_PRIVATE_EXPEDITED = (1 << 3),
   MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED = (1 << 4),
+  MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 5),
+  MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE = (1 << 6),
+  MEMBARRIER_CMD_SHARED = MEMBARRIER_CMD_GLOBAL,
 };
 #endif