Function at include/linux/blkdev.h, line 520 References: block/blk-tag.c, line 75 block/blk-tag.c, line 103 drivers/block/loop.c, line 811 drivers/block/nbd.c, line 735 drivers/md/dm-table.c, line 1463 drivers/md/dm-table.c, line 1481 drivers/md/dm-table.c, line 1495 drivers/md/dm.c, line 1837 drivers/md/linear.c, line 185 drivers/md/raid0.c, line 286 drivers/md/raid1.c, line 2841 drivers/md/raid10.c, line 3678 drivers/md/raid5.c, line 5621 drivers/scsi/sd.c, line 625 include/linux/blkdev.h, line 520