xfs_buf_btoct 370 fs/xfs/linux-2.6/xfs_buf.c page_count = xfs_buf_btoc(end) - xfs_buf_btoct(bp->b_file_offset); xfs_buf_btoct 1311 fs/xfs/linux-2.6/xfs_buf.c page = bp->b_pages[xfs_buf_btoct(boff + bp->b_offset)];