From: Ming Lei Date: Sat, 29 Oct 2022 01:04:30 +0000 (+0800) Subject: ublk_drv: comment on ublk_driver entry of Kconfig X-Git-Tag: v6.6.17~6063^2~24 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d57c2c6c1145148bb23d68db73de0b52d482d4ba;p=platform%2Fkernel%2Flinux-rpi.git ublk_drv: comment on ublk_driver entry of Kconfig Add help info for choosing to build ublk_drv as module or builtin. Signed-off-by: Ming Lei Reviewed-by: ZiyangZhang Link: https://lore.kernel.org/r/20221029010432.598367-3-ming.lei@redhat.com Signed-off-by: Jens Axboe --- diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index db1b4b2..a41145d 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