Re: [PATCH V3 1/1] ublk: add io_uring based userspace block driver

[Sagi Grimberg]

> > > diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
> > > index fdb81f2794cd..d218089cdbec 100644
> > > --- a/drivers/block/Kconfig
> > > +++ b/drivers/block/Kconfig
> > > @@ -408,6 +408,12 @@ config BLK_DEV_RBD
> > >    	  If unsure, say N.
> > > +config BLK_DEV_UBLK
> > > +	bool "Userspace block driver"
> >
> > Really? why compile this to the kernel and not tristate as loadable
> > module?
>
> So far, this is only one reason: task_work_add() is required, which
> isn't exported for modules.

So why not exporting it?
Doesn't seem like a good justification to build it into the kernel.