summary refs log tree commit diff
path: root/fs/xfs/libxfs/xfs_btree.h
diff options
context:
space:
mode:
authorDarrick J. Wong <darrick.wong@oracle.com>2016-09-19 10:25:03 +1000
committerDave Chinner <david@fromorbit.com>2016-09-19 10:25:03 +1000
commit4ed3f68792f6a9c21a290ae777565e7562a09653 (patch)
treef44cb6765a8bb601b68b2703d9a80a14d23a0bb8 /fs/xfs/libxfs/xfs_btree.h
parenta1d46cffaf40e04acb0ecab14980ece3ef1ab933 (diff)
downloadlinux-4ed3f68792f6a9c21a290ae777565e7562a09653.tar.gz
xfs: create a standard btree size calculator code
Create a helper to generate AG btree height calculator functions.
This will be used (much) later when we get to the refcount btree.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>

Diffstat (limited to 'fs/xfs/libxfs/xfs_btree.h')
-rw-r--r--fs/xfs/libxfs/xfs_btree.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h
index f41a4cfff740..1c148f5c5675 100644
--- a/fs/xfs/libxfs/xfs_btree.h
+++ b/fs/xfs/libxfs/xfs_btree.h
@@ -501,6 +501,8 @@ bool xfs_btree_sblock_v5hdr_verify(struct xfs_buf *bp);
 bool xfs_btree_sblock_verify(struct xfs_buf *bp, unsigned int max_recs);
 uint xfs_btree_compute_maxlevels(struct xfs_mount *mp, uint *limits,
 				 unsigned long len);
+xfs_extlen_t xfs_btree_calc_size(struct xfs_mount *mp, uint *limits,
+		unsigned long long len);
 
 /* return codes */
 #define XFS_BTREE_QUERY_RANGE_CONTINUE	0	/* keep iterating */