Function prototype or declaration at include/linux/blkdev.h, line 814 References: block/blk-settings.c, line 317 block/blk-settings.c, line 327 drivers/block/drbd/drbd_main.c, line 3222 drivers/block/drbd/drbd_nl.c, line 778 drivers/block/ps3disk.c, line 474 drivers/block/ps3vram.c, line 756 drivers/block/virtio_blk.c, line 414 drivers/block/virtio_blk.c, line 416 drivers/block/xen-blkfront.c, line 412 drivers/cdrom/gdrom.c, line 759 drivers/firewire/sbp2.c, line 1583 drivers/memstick/core/mspro_block.c, line 1249 drivers/mmc/card/queue.c, line 174 drivers/mmc/card/queue.c, line 200 drivers/s390/block/dasd.c, line 2284 drivers/s390/char/tape_block.c, line 228 drivers/scsi/be2iscsi/be_main.c, line 61 drivers/scsi/scsi_debug.c, line 2419 drivers/scsi/scsi_lib.c, line 1637 drivers/staging/hv/blkvsc_drv.c, line 358 drivers/staging/hv/storvsc_drv.c, line 822 drivers/staging/westbridge/astoria/block/cyasblkdev_queue.c, line 330 include/linux/blkdev.h, line 814