Add help info for choosing to build ublk_drv as module or builtin. Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx> --- drivers/block/Kconfig | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index db1b4b202646..a41145d52de9 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -408,6 +408,12 @@ config BLK_DEV_UBLK definition isn't finalized yet, and might change according to future requirement, so mark is as experimental now. + Say Y if you want to get better performance because task_work_add() + can be used in IO path for replacing io_uring cmd, which will become + shared between IO tasks and ubq daemon, meantime task_work_add() can + can handle batch more effectively, but task_work_add() isn't exported + for module, so ublk has to be built to kernel. + source "drivers/block/rnbd/Kconfig" endif # BLK_DEV -- 2.31.1
