diff --git a/ioctl.h b/ioctl.h
index d3dfd637..1d53c100 100644
--- a/ioctl.h
+++ b/ioctl.h
@@ -507,11 +507,18 @@ BUILD_ASSERT(sizeof(struct btrfs_ioctl_ino_path_args) == 56);
 struct btrfs_ioctl_logical_ino_args {
 	__u64				logical;	/* in */
 	__u64				size;		/* in */
-	__u64				reserved[4];
+	__u64				reserved[3];
+	__u64				flags;		/* in */
 	/* struct btrfs_data_container	*inodes;	out   */
 	__u64				inodes;
 };
 
+/*
+ * Return every ref to the extent, not just those containing logical block.
+ * Requires logical == extent bytenr.
+ */
+#define BTRFS_LOGICAL_INO_ARGS_IGNORE_OFFSET    (1ULL << 0)
+
 enum btrfs_dev_stat_values {
 	/* disk I/O failure stats */
 	BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
@@ -925,6 +932,8 @@ static inline char *btrfs_err_str(enum btrfs_err_code err_code)
                                   struct btrfs_ioctl_feature_flags[3])
 #define BTRFS_IOC_RM_DEV_V2	_IOW(BTRFS_IOCTL_MAGIC, 58, \
 				   struct btrfs_ioctl_vol_args_v2)
+#define BTRFS_IOC_LOGICAL_INO_V2 _IOWR(BTRFS_IOCTL_MAGIC, 59, \
+                                     struct btrfs_ioctl_logical_ino_args)
 #define BTRFS_IOC_GET_SUBVOL_INFO _IOR(BTRFS_IOCTL_MAGIC, 60, \
 				struct btrfs_ioctl_get_subvol_info_args)
 #define BTRFS_IOC_GET_SUBVOL_ROOTREF _IOWR(BTRFS_IOCTL_MAGIC, 61, \