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authorDarrick J. Wong <darrick.wong@oracle.com>2018-05-09 10:02:01 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2018-05-15 17:57:05 -0700
commit14861c47400b4a1669956d8b027fe4b7855e39f1 (patch)
tree43c5f049a512128ed99e054fb94e10fea0b37e1c /fs/xfs/libxfs/xfs_alloc_btree.h
parent9d9c90286a74decf11caa9dd625f862ae0257ce0 (diff)
xfs: add helpers to calculate btree size
Add a bunch of helper functions that calculate the sizes of various btrees. These will be used to repair btrees and btree headers. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_alloc_btree.h')
-rw-r--r--fs/xfs/libxfs/xfs_alloc_btree.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_alloc_btree.h b/fs/xfs/libxfs/xfs_alloc_btree.h
index 45e189e7e81c..2fd54728871c 100644
--- a/fs/xfs/libxfs/xfs_alloc_btree.h
+++ b/fs/xfs/libxfs/xfs_alloc_btree.h
@@ -61,5 +61,7 @@ extern struct xfs_btree_cur *xfs_allocbt_init_cursor(struct xfs_mount *,
struct xfs_trans *, struct xfs_buf *,
xfs_agnumber_t, xfs_btnum_t);
extern int xfs_allocbt_maxrecs(struct xfs_mount *, int, int);
+extern xfs_extlen_t xfs_allocbt_calc_size(struct xfs_mount *mp,
+ unsigned long long len);
#endif /* __XFS_ALLOC_BTREE_H__ */