[XFS] Cleanup maxrecs calculation.

[safe/jmp/linux-2.6] / fs / xfs / xfs_ialloc_btree.c

diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
index dcd4a95..46aabb3 100644 (file)
--- a/fs/xfs/xfs_ialloc_btree.c
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -365,3 +365,19 @@ xfs_inobt_init_cursor(
 
        return cur;
 }
+
+/*
+ * Calculate number of records in an inobt btree block.
+ */
+int
+xfs_inobt_maxrecs(
+       struct xfs_mount        *mp,
+       int                     blocklen,
+       int                     leaf)
+{
+       blocklen -= sizeof(struct xfs_btree_sblock);
+
+       if (leaf)
+               return blocklen / sizeof(xfs_inobt_rec_t);
+       return blocklen / (sizeof(xfs_inobt_key_t) + sizeof(xfs_inobt_ptr_t));
+}