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2ca7b9d7b8
Move this function out of xfs_ioctl.c to reduce the clutter in there, and make the entire getfsmap implementation self-contained in a single file. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
34 lines
977 B
C
34 lines
977 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2017 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <darrick.wong@oracle.com>
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*/
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#ifndef __XFS_FSMAP_H__
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#define __XFS_FSMAP_H__
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struct fsmap;
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struct fsmap_head;
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/* internal fsmap representation */
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struct xfs_fsmap {
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dev_t fmr_device; /* device id */
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uint32_t fmr_flags; /* mapping flags */
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uint64_t fmr_physical; /* device offset of segment */
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uint64_t fmr_owner; /* owner id */
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xfs_fileoff_t fmr_offset; /* file offset of segment */
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xfs_filblks_t fmr_length; /* length of segment, blocks */
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};
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struct xfs_fsmap_head {
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uint32_t fmh_iflags; /* control flags */
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uint32_t fmh_oflags; /* output flags */
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unsigned int fmh_count; /* # of entries in array incl. input */
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unsigned int fmh_entries; /* # of entries filled in (output). */
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struct xfs_fsmap fmh_keys[2]; /* low and high keys */
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};
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int xfs_ioc_getfsmap(struct xfs_inode *ip, struct fsmap_head __user *arg);
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#endif /* __XFS_FSMAP_H__ */
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