scan_used 392 drivers/block/xen-blkback/blkback.c bool scan_used = false; scan_used 433 drivers/block/xen-blkback/blkback.c if (!scan_used && !persistent_gnt_timeout(persistent_gnt)) scan_used 435 drivers/block/xen-blkback/blkback.c if (scan_used && total >= num_clean) scan_used 448 drivers/block/xen-blkback/blkback.c if (!scan_used && total < num_clean) { scan_used 450 drivers/block/xen-blkback/blkback.c scan_used = true;