Re: workqueue: inline trivial wrappers

From: Tejun Heo
Date: Mon May 06 2013 - 14:42:40 EST


Hello,

On Mon, May 06, 2013 at 10:44:58AM -0400, Marc Dionne wrote:
> On Mon, Apr 29, 2013 at 10:31 PM, Linux Kernel Mailing List
> <linux-kernel@xxxxxxxxxxxxxxx> wrote:
> > Gitweb: http://git.kernel.org/linus/;a=commit;h=8425e3d5bdbe8e741d2c73cf3189ed59b4038b84
> > Commit: 8425e3d5bdbe8e741d2c73cf3189ed59b4038b84
> > Parent: 611c92a0203091bb022edec7e2d8b765fe148622
> > Author: Tejun Heo <tj@xxxxxxxxxx>
> > AuthorDate: Wed Mar 13 16:51:36 2013 -0700
> > Committer: Tejun Heo <tj@xxxxxxxxxx>
> > CommitDate: Wed Mar 13 16:51:36 2013 -0700
> >
> > workqueue: inline trivial wrappers
> >
> > There's no reason to make these trivial wrappers full (exported)
> > functions. Inline the followings.
> >
> > queue_work()
> > queue_delayed_work()
> > mod_delayed_work()
> > schedule_work_on()
> > schedule_work()
> > schedule_delayed_work_on()
> > schedule_delayed_work()
> > keventd_up()
> >
> > Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
>
> This commit has the side effect of making some functions
> EXPORT_SYMBOL_GPL that had been previously exported with EXPORT_SYMBOL
> for a long time, such as schedule_work(). This is used by OpenAFS and
> probably other out of tree modules. Past exchanges on this list (ex:
> http://marc.info/?l=linux-fsdevel&m=123550631318910) suggest the
> license requirements for existing interfaces shouldn't change, at
> least without providing an alternate means of getting the same
> functionality. Any thoughts on whether this can be adjusted within
> the current release cycle?

Hah, so schedule_work() was EXPORT_SYMBOL() and queue_work*() were
EXPORT_SYMBOL_GPL()? It'd be rather silly to avoid inlining those
wrappers for license reasons. Can you please send a patch changing
the necessary functions to EXPORT_SYMBOL()?

Thanks.

--
tejun
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/