1// SPDX-License-Identifier: GPL-2.0+
 2/*
 3 * Copyright (C) 2017 Oracle.  All Rights Reserved.
 4 * Author: Darrick J. Wong <darrick.wong@oracle.com>
 5 */
 6#ifndef __XFS_FSMAP_H__
 7#define __XFS_FSMAP_H__
 8
 9struct fsmap;
10
11/* internal fsmap representation */
12struct xfs_fsmap {
13	dev_t		fmr_device;	/* device id */
14	uint32_t	fmr_flags;	/* mapping flags */
15	uint64_t	fmr_physical;	/* device offset of segment */
16	uint64_t	fmr_owner;	/* owner id */
17	xfs_fileoff_t	fmr_offset;	/* file offset of segment */
18	xfs_filblks_t	fmr_length;	/* length of segment, blocks */
19};
20
21struct xfs_fsmap_head {
22	uint32_t	fmh_iflags;	/* control flags */
23	uint32_t	fmh_oflags;	/* output flags */
24	unsigned int	fmh_count;	/* # of entries in array incl. input */
25	unsigned int	fmh_entries;	/* # of entries filled in (output). */
26
27	struct xfs_fsmap fmh_keys[2];	/* low and high keys */
28};
29
30void xfs_fsmap_to_internal(struct xfs_fsmap *dest, struct fsmap *src);
31
32int xfs_getfsmap(struct xfs_mount *mp, struct xfs_fsmap_head *head,
33		struct fsmap *out_recs);
34
35#endif /* __XFS_FSMAP_H__ */