+ ASSERT(PAGE_SHIFT >= sbp->sb_blocklog);
+ ASSERT(sbp->sb_blocklog >= BBSHIFT);
+
+#if XFS_BIG_BLKNOS /* Limited by ULONG_MAX of page cache index */
+ if (unlikely(
+ (sbp->sb_dblocks >> (PAGE_SHIFT - sbp->sb_blocklog)) > ULONG_MAX ||
+ (sbp->sb_rblocks >> (PAGE_SHIFT - sbp->sb_blocklog)) > ULONG_MAX)) {
+#else /* Limited by UINT_MAX of sectors */