IO_ERROR_SHIFT 121 drivers/md/bcache/io.c unsigned int errors = atomic_add_return(1 << IO_ERROR_SHIFT, IO_ERROR_SHIFT 123 drivers/md/bcache/io.c errors >>= IO_ERROR_SHIFT; IO_ERROR_SHIFT 1009 drivers/md/bcache/sysfs.c atomic_read(&ca->io_errors) >> IO_ERROR_SHIFT);