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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 <ming.lei@redhat.com>
Reviewed-by: ZiyangZhang <ZiyangZhang@linux.alibaba.com>
Link: https://lore.kernel.org/r/20221029010432.598367-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ming Lei 2022-10-29 09:04:30 +08:00 committed by Jens Axboe
parent 224e858f21
commit d57c2c6c11
1 changed files with 6 additions and 0 deletions
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6
drivers/block/Kconfig
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@ -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