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");