Function prototype or declaration at include/linux/blkdev.h, line 729 References: arch/um/drivers/ubd_kern.c, line 480 block/ll_rw_blk.c, line 371 block/ll_rw_blk.c, line 489 block/ll_rw_blk.c, line 3548 block/ll_rw_blk.c, line 3553 drivers/block/DAC960.c, line 3467 drivers/block/floppy.c, line 2297 drivers/block/nbd.c, line 111 drivers/block/ps3disk.c, line 283 drivers/block/sunvdc.c, line 217 drivers/block/sx8.c, line 752 drivers/block/ub.c, line 819 drivers/block/viodasd.c, line 235 drivers/block/xen-blkfront.c, line 497 drivers/block/xsysace.c, line 706 drivers/cdrom/viocd.c, line 305 drivers/s390/block/dasd.c, line 1083 drivers/s390/char/tape_block.c, line 79 include/linux/blkdev.h, line 729