Re: RFC: cleaning up the in-kernel headers

Joshua Hudson
2006-07-11T17:16:04Z

On 7/11/06, Dave Jones <davej@redhat.com> wrote:
> On Tue, Jul 11, 2006 at 06:06:39PM +0200, Adrian Bunk wrote:
> > I'd like to cleanup the mess of the in-kernel headers, based on the
> > following rules:
> > - every header should #include everything it uses
> > - remove unneeded #include's from headers
> >
> > This would also remove all the implicit rules "before #include'ing
> > header foo.h, you must #include header bar.h" you usually only see when
> > the compilation fails.
>
> You may want to add as a secondary goal, splitting up some of the
> huge 3-headed monster include files like sched.h
> (It's better than it used to be, but it still sucks, and that thing
> #include's the world). Worst, iirc module.h pulls it in, which means
> everything built as a module is pulling in hundreds of includes
> even though most of the time, it'll never use anything from the
> indirect ones.
If you pull this off, you can shave a lot off compile time as almost
every component #includes module.h