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ublk_drv: comment on ublk_driver entry of Kconfig

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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 definition isn't finalized yet, and might change according to future
requirement, so mark is as experimental now. 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" source "drivers/block/rnbd/Kconfig"
endif # BLK_DEV endif # BLK_DEV