Function prototype or declaration at include/linux/blkdev.h, line 1953 References: block/blk-core.c, line 1334 block/blk-core.c, line 1338 drivers/block/drbd/drbd_req.c, line 1213 drivers/block/rsxx/dev.c, line 161 drivers/block/zram/zram_drv.c, line 1574 drivers/lightnvm/pblk-cache.c, line 31 drivers/lightnvm/pblk-read.c, line 273 drivers/md/bcache/request.c, line 1197 drivers/md/bcache/request.c, line 1288 drivers/md/dm.c, line 611 drivers/md/md.c, line 504 drivers/nvdimm/blk.c, line 182 drivers/nvdimm/btt.c, line 1458 drivers/nvdimm/pmem.c, line 209 include/linux/blkdev.h, line 1953