dm_bufio_forget  1424 drivers/md/dm-bufio.c EXPORT_SYMBOL_GPL(dm_bufio_forget);
dm_bufio_forget   552 drivers/md/dm-snap-persistent.c 		dm_bufio_forget(client, chunk);
dm_bufio_forget   132 include/linux/dm-bufio.h void dm_bufio_forget(struct dm_bufio_client *c, sector_t block);