1511 …discard_or_zero_out(struct drbd_device *device, sector_t start, unsigned int nr_sectors, int flags)  in drbd_issue_discard_or_zero_out()  argument
1532 	if (nr_sectors < granularity)  in drbd_issue_discard_or_zero_out()
1537 		if (nr_sectors < 2*granularity)  in drbd_issue_discard_or_zero_out()
1547 		nr_sectors -= nr;  in drbd_issue_discard_or_zero_out()
1550 	while (nr_sectors >= max_discard_sectors) {  in drbd_issue_discard_or_zero_out()
1552 		nr_sectors -= max_discard_sectors;  in drbd_issue_discard_or_zero_out()
1555 	if (nr_sectors) {  in drbd_issue_discard_or_zero_out()
1560 		nr = nr_sectors;  in drbd_issue_discard_or_zero_out()
1564 			nr_sectors -= nr;  in drbd_issue_discard_or_zero_out()
1569 	if (nr_sectors) {  in drbd_issue_discard_or_zero_out()
1570 		err |= blkdev_issue_zeroout(bdev, start, nr_sectors, GFP_NOIO,  in drbd_issue_discard_or_zero_out()