diff --git a/libc/kernel/uapi/linux/dlm.h b/libc/kernel/uapi/linux/dlm.h
new file mode 100644
index 0000000..d19282c
--- /dev/null
+++ b/libc/kernel/uapi/linux/dlm.h
@@ -0,0 +1,40 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _UAPI__DLM_DOT_H__
+#define _UAPI__DLM_DOT_H__
+#include <linux/dlmconstants.h>
+#include <linux/types.h>
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+typedef void dlm_lockspace_t;
+#define DLM_SBF_DEMOTED 0x01
+#define DLM_SBF_VALNOTVALID 0x02
+#define DLM_SBF_ALTMODE 0x04
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct dlm_lksb {
+ int sb_status;
+ __u32 sb_lkid;
+ char sb_flags;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ char * sb_lvbptr;
+};
+#define DLM_LSFL_TIMEWARN 0x00000002
+#define DLM_LSFL_FS 0x00000004
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define DLM_LSFL_NEWEXCL 0x00000008
+#endif