diff --git a/libc/kernel/uapi/linux/fuse.h b/libc/kernel/uapi/linux/fuse.h
index efb5424..728b202 100644
--- a/libc/kernel/uapi/linux/fuse.h
+++ b/libc/kernel/uapi/linux/fuse.h
@@ -104,6 +104,7 @@
 #define FUSE_MAP_ALIGNMENT (1 << 26)
 #define FUSE_SUBMOUNTS (1 << 27)
 #define FUSE_HANDLE_KILLPRIV_V2 (1 << 28)
+#define FUSE_SETXATTR_EXT (1 << 29)
 #define FUSE_PASSTHROUGH (1 << 31)
 #define CUSE_UNRESTRICTED_IOCTL (1 << 0)
 #define FUSE_RELEASE_FLUSH (1 << 0)
@@ -126,6 +127,7 @@
 #define FUSE_FSYNC_FDATASYNC (1 << 0)
 #define FUSE_ATTR_SUBMOUNT (1 << 0)
 #define FUSE_OPEN_KILL_SUIDGID (1 << 0)
+#define FUSE_SETXATTR_ACL_KILL_SGID (1 << 0)
 enum fuse_opcode {
   FUSE_LOOKUP = 1,
   FUSE_FORGET = 2,
@@ -321,9 +323,12 @@
   uint32_t fsync_flags;
   uint32_t padding;
 };
+#define FUSE_COMPAT_SETXATTR_IN_SIZE 8
 struct fuse_setxattr_in {
   uint32_t size;
   uint32_t flags;
+  uint32_t setxattr_flags;
+  uint32_t padding;
 };
 struct fuse_getxattr_in {
   uint32_t size;
@@ -445,11 +450,6 @@
   uint32_t pid;
   uint32_t padding;
 };
-struct fuse_passthrough_out {
-  uint32_t fd;
-  uint32_t len;
-  void * vec;
-};
 struct fuse_out_header {
   uint32_t len;
   int32_t error;
@@ -510,7 +510,7 @@
 };
 #define FUSE_DEV_IOC_MAGIC 229
 #define FUSE_DEV_IOC_CLONE _IOR(FUSE_DEV_IOC_MAGIC, 0, uint32_t)
-#define FUSE_DEV_IOC_PASSTHROUGH_OPEN _IOW(FUSE_DEV_IOC_MAGIC, 127, struct fuse_passthrough_out)
+#define FUSE_DEV_IOC_PASSTHROUGH_OPEN _IOW(FUSE_DEV_IOC_MAGIC, 126, __u32)
 struct fuse_lseek_in {
   uint64_t fh;
   uint64_t offset;