Re: [PATCH 02/18] block: open code kobj_map into in block/genhd.c

Geert Uytterhoeven
2020-10-30T10:49:30Z

Hi Greg,

On Fri, Oct 30, 2020 at 11:40 AM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
> On Thu, Oct 29, 2020 at 08:32:42PM +0100, Christoph Hellwig wrote:
> > On Thu, Oct 29, 2020 at 08:22:36PM +0100, Greg Kroah-Hartman wrote:
> > > After this, you want me to get rid of kobj_map, right? Or you don't
> > > care as block doesn't use it anymore? :)
> >
> > I have a patch to kill it, but it causes odd regressions with the
> > tpm driver according to the kernel test. As I have grand plans that
> > build on the block ѕide of this series for 5.11, I plan to defer the
> > chardev side and address it for 5.12.
>
> Ok, sounds good.
>
> Wow, I just looked at the tpm code, and it is, um, "interesting" in how
> it thinks device lifespans work. Nothing like having 4 different
> structures with different lifespans embedded within a single structure.
> Good thing that no one can dynamically remove a TPM device during
> "normal" operation.

/sys/.../unbind?

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds