startblk          198 fs/gfs2/rgrp.c 	u64 startblk = gfs2_rbm_to_block(&rs->rs_rbm);
startblk          200 fs/gfs2/rgrp.c 	if (blk >= startblk + rs->rs_free)
startblk          202 fs/gfs2/rgrp.c 	if (blk + len - 1 < startblk)