[RFC v8 19/20] um: lkl: add block device support of UML

[Hajime Tazaki]

On Mon, 15 Mar 2021 05:37:40 +0900,
Johannes Berg wrote:
> 
> On Wed, 2021-01-20 at 11:27 +0900, Hajime Tazaki wrote:
> > 
> > diff --git a/arch/um/Kconfig b/arch/um/Kconfig
> > index 24c6596260de..5fb6a852d058 100644
> > --- a/arch/um/Kconfig
> > +++ b/arch/um/Kconfig
> > @@ -29,6 +29,10 @@ config UMMODE_LIB
> >  	select UACCESS_MEMCPY
> >  	select ARCH_THREAD_STACK_ALLOCATOR
> >  	select ARCH_HAS_SYSCALL_WRAPPER
> > +	select VFAT_FS
> > +	select NLS_CODEPAGE_437
> > +	select NLS_ISO8859_1
> > +	select BTRFS_FS
> 
> That doesn't really seem to make sense - the sample might need it, but
> generally LKL doesn't/shouldn't?

I'm trying to understand your comment;
Do you mean that enabling those options in Kconfig doesn't make sense ?

and if you mean the sample as sample code, is the added test case
(e.g., tools/testing/selftests/um/disk.c, which is included in the
same patch) for this purpose ?

-- HAjime