v4.19.13 snapshot.
diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h
new file mode 100644
index 0000000..8a82228
--- /dev/null
+++ b/fs/xfs/xfs_itable.h
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved.
+ */
+#ifndef __XFS_ITABLE_H__
+#define __XFS_ITABLE_H__
+
+/*
+ * xfs_bulkstat() is used to fill in xfs_bstat structures as well as dm_stat
+ * structures (by the dmi library). This is a pointer to a formatter function
+ * that will iget the inode and fill in the appropriate structure.
+ * see xfs_bulkstat_one() and xfs_dm_bulkstat_one() in dmapi_xfs.c
+ */
+typedef int (*bulkstat_one_pf)(struct xfs_mount *mp,
+ xfs_ino_t ino,
+ void __user *buffer,
+ int ubsize,
+ int *ubused,
+ int *stat);
+
+/*
+ * Values for stat return value.
+ */
+#define BULKSTAT_RV_NOTHING 0
+#define BULKSTAT_RV_DIDONE 1
+#define BULKSTAT_RV_GIVEUP 2
+
+/*
+ * Return stat information in bulk (by-inode) for the filesystem.
+ */
+int /* error status */
+xfs_bulkstat(
+ xfs_mount_t *mp, /* mount point for filesystem */
+ xfs_ino_t *lastino, /* last inode returned */
+ int *count, /* size of buffer/count returned */
+ bulkstat_one_pf formatter, /* func that'd fill a single buf */
+ size_t statstruct_size,/* sizeof struct that we're filling */
+ char __user *ubuffer,/* buffer with inode stats */
+ int *done); /* 1 if there are more stats to get */
+
+typedef int (*bulkstat_one_fmt_pf)( /* used size in bytes or negative error */
+ void __user *ubuffer, /* buffer to write to */
+ int ubsize, /* remaining user buffer sz */
+ int *ubused, /* bytes used by formatter */
+ const xfs_bstat_t *buffer); /* buffer to read from */
+
+int
+xfs_bulkstat_one_int(
+ xfs_mount_t *mp,
+ xfs_ino_t ino,
+ void __user *buffer,
+ int ubsize,
+ bulkstat_one_fmt_pf formatter,
+ int *ubused,
+ int *stat);
+
+int
+xfs_bulkstat_one(
+ xfs_mount_t *mp,
+ xfs_ino_t ino,
+ void __user *buffer,
+ int ubsize,
+ int *ubused,
+ int *stat);
+
+typedef int (*inumbers_fmt_pf)(
+ void __user *ubuffer, /* buffer to write to */
+ const xfs_inogrp_t *buffer, /* buffer to read from */
+ long count, /* # of elements to read */
+ long *written); /* # of bytes written */
+
+int
+xfs_inumbers_fmt(
+ void __user *ubuffer, /* buffer to write to */
+ const xfs_inogrp_t *buffer, /* buffer to read from */
+ long count, /* # of elements to read */
+ long *written); /* # of bytes written */
+
+int /* error status */
+xfs_inumbers(
+ xfs_mount_t *mp, /* mount point for filesystem */
+ xfs_ino_t *last, /* last inode returned */
+ int *count, /* size of buffer/count returned */
+ void __user *buffer, /* buffer with inode info */
+ inumbers_fmt_pf formatter);
+
+#endif /* __XFS_ITABLE_H__ */