retain_bytes     1544 drivers/md/dm-bufio.c 	unsigned long retain_bytes = READ_ONCE(dm_bufio_retain_bytes);
retain_bytes     1546 drivers/md/dm-bufio.c 		retain_bytes >>= c->sectors_per_block_bits + SECTOR_SHIFT;
retain_bytes     1548 drivers/md/dm-bufio.c 		retain_bytes /= c->block_size;
retain_bytes     1549 drivers/md/dm-bufio.c 	return retain_bytes;
retain_bytes     2007 drivers/md/dm-bufio.c module_param_named(retain_bytes, dm_bufio_retain_bytes, ulong, S_IRUGO | S_IWUSR);
retain_bytes     2008 drivers/md/dm-bufio.c MODULE_PARM_DESC(retain_bytes, "Try to keep at least this many bytes cached in memory");