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 9 struct fsmap; 10 struct fsmap_head; 11 12 /* internal fsmap representation */ 13 struct xfs_fsmap { 14 dev_t fmr_device; /* device id */ 15 uint32_t fmr_flags; /* mapping flags */ 16 uint64_t fmr_physical; /* device offset of segment */ 17 uint64_t fmr_owner; /* owner id */ 18 xfs_fileoff_t fmr_offset; /* file offset of segment */ 19 xfs_filblks_t fmr_length; /* length of segment, blocks */ 20 }; 21 22 struct xfs_fsmap_head { 23 uint32_t fmh_iflags; /* control flags */ 24 uint32_t fmh_oflags; /* output flags */ 25 unsigned int fmh_count; /* # of entries in array incl. input */ 26 unsigned int fmh_entries; /* # of entries filled in (output). */ 27 28 struct xfs_fsmap fmh_keys[2]; /* low and high keys */ 29 }; 30 31 int xfs_ioc_getfsmap(struct xfs_inode *ip, struct fsmap_head __user *arg); 32 33 #endif /* __XFS_FSMAP_H__ */ 34