Re: [PATCH v1 1/1] kernel.h: Split out panic and oops helpers

Luis Chamberlain
2021-04-07T14:30:46Z

On Wed, Apr 07, 2021 at 10:33:44AM +0300, Andy Shevchenko wrote:
> On Wed, Apr 7, 2021 at 10:25 AM Luis Chamberlain <mcgrof@kernel.org> wrote:
> >
> > On Tue, Apr 06, 2021 at 04:31:58PM +0300, Andy Shevchenko wrote:
> > > diff --git a/include/linux/panic_notifier.h b/include/linux/panic_notifier.h
> > > new file mode 100644
> > > index 000000000000..41e32483d7a7
> > > --- /dev/null
> > > +++ b/include/linux/panic_notifier.h
> > > @@ -0,0 +1,12 @@
> > > +/* SPDX-License-Identifier: GPL-2.0 */
> > > +#ifndef _LINUX_PANIC_NOTIFIERS_H
> > > +#define _LINUX_PANIC_NOTIFIERS_H
> > > +
> > > +#include <linux/notifier.h>
> > > +#include <linux/types.h>
> > > +
> > > +extern struct atomic_notifier_head panic_notifier_list;
> > > +
> > > +extern bool crash_kexec_post_notifiers;
> > > +
> > > +#endif /* _LINUX_PANIC_NOTIFIERS_H */
> >
> > Why is it worth it to add another file just for this?
>
> The main point is to break tons of loops that prevent having clean
> headers anymore.
>
> In this case, see bug.h, which is very important in this sense.

OK based on the commit log this was not clear, it seemed more of moving
panic stuff to its own file, so just cleanup.

> > Seems like a very
> > small file.
>
> If it is an argument, it's kinda strange. We have much smaller headers.

The motivation for such separate file was just not clear on the commit
log.

Luis