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Diffstat (limited to 'fs/xfs/xfs_fsmap.h')
| -rw-r--r-- | fs/xfs/xfs_fsmap.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/fs/xfs/xfs_fsmap.h b/fs/xfs/xfs_fsmap.h new file mode 100644 index 000000000..a0775788e --- /dev/null +++ b/fs/xfs/xfs_fsmap.h @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2017 Oracle. All Rights Reserved. + * Author: Darrick J. Wong <darrick.wong@oracle.com> + */ +#ifndef __XFS_FSMAP_H__ +#define __XFS_FSMAP_H__ + +struct fsmap; + +/* internal fsmap representation */ +struct xfs_fsmap { + dev_t fmr_device; /* device id */ + uint32_t fmr_flags; /* mapping flags */ + uint64_t fmr_physical; /* device offset of segment */ + uint64_t fmr_owner; /* owner id */ + xfs_fileoff_t fmr_offset; /* file offset of segment */ + xfs_filblks_t fmr_length; /* length of segment, blocks */ +}; + +struct xfs_fsmap_head { + uint32_t fmh_iflags; /* control flags */ + uint32_t fmh_oflags; /* output flags */ + unsigned int fmh_count; /* # of entries in array incl. input */ + unsigned int fmh_entries; /* # of entries filled in (output). */ + + struct xfs_fsmap fmh_keys[2]; /* low and high keys */ +}; + +void xfs_fsmap_to_internal(struct xfs_fsmap *dest, struct fsmap *src); + +int xfs_getfsmap(struct xfs_mount *mp, struct xfs_fsmap_head *head, + struct fsmap *out_recs); + +#endif /* __XFS_FSMAP_H__ */ |