Re: [PATCH 5.15 000/251] 5.15.47-rc2 review

Jan Kara
2022-06-15T11:03:35Z

On Tue 14-06-22 12:00:22, Linus Torvalds wrote:
> On Tue, Jun 14, 2022 at 11:51 AM Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
> >
> > Or just make sure that noop_backing_dev_info is fully initialized
> > before it's used.
>
> I don't see any real reason why that
>
> err = bdi_init(&noop_backing_dev_info);
>
> couldn't just be done very early. Maybe as the first call in
> driver_init(), before the whole devtmpfs_init() etc.

I've checked the dependencies and cgroups (which are the only non-trivial
dependency besides per-CPU infrastructure) are initialized early enough so
it should work fine. So let's try that.

Honza
--
Jan Kara <jack@suse.com>
SUSE Labs, CR