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-rw-r--r--fs/xfs/xfs_fsmap.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/fs/xfs/xfs_fsmap.h b/fs/xfs/xfs_fsmap.h
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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__ */