Function prototype or declaration at include/linux/blkdev.h, line 902 References: arch/um/drivers/ubd_kern.c, line 477 block/blk-core.c, line 2201 block/blk-core.c, line 2205 block/blk-core.c, line 2242 block/blk-core.c, line 2261 drivers/ide/ide-io.c, line 70 drivers/ide/ide-pm.c, line 204 drivers/message/i2o/i2o_block.c, line 429 drivers/scsi/osd/osd_initiator.c, line 434 drivers/scsi/scsi_lib.c, line 548 drivers/scsi/scsi_transport_fc.c, line 3782 drivers/scsi/scsi_transport_fc.c, line 3792 include/linux/blkdev.h, line 902