On Thu, Oct 09, 2014 at 09:15:12AM -0400, Tejun Heo wrote:
> On Thu, Oct 09, 2014 at 03:13:31PM +0200, Frederic Weisbecker wrote:
> > On Thu, Oct 09, 2014 at 03:50:18PM +1100, Stephen Rothwell wrote:
> > > Hi all,
> > >
> > > Today's linux-next merge of the percpu tree got a conflict in
> > > kernel/irq_work.c between commit 76a33061b932 ("irq_work: Force raised
> > > irq work to run on irq work interrupt") from the tip tree and commit
> > > 22127e93c587 ("time: Replace __get_cpu_var uses") from the percpu tree.
> > >
> > > I fixed it up (see below) and can carry the fix as necessary (no action
> > > is required).
> > >
> > > --
> > > Cheers,
> > > Stephen Rothwell [email protected]
> > >
> > > diff --cc kernel/irq_work.c
> > > index 385b85aded19,345d19edcdae..000000000000
> > > --- a/kernel/irq_work.c
> > > +++ b/kernel/irq_work.c
> > > @@@ -113,12 -113,10 +113,12 @@@ bool irq_work_needs_cpu(void
> > > {
> > > struct llist_head *raised, *lazy;
> > >
> > > - raised = &__get_cpu_var(raised_list);
> > > - lazy = &__get_cpu_var(lazy_list);
> > > + raised = this_cpu_ptr(&raised_list);
> > > + lazy = this_cpu_ptr(&lazy_list);
> >
> > Ah thanks! The conflict is compile time rather than merge time, thanks
> > for spotting it!
> >
> > Should we notify Linus about it? That's certainly something that should
> > be applied with the percpu tree.
>
> I'm holding back percpu/for-3.18-consistent-ops till other trees are
> merged and collecting the conflicts. I'll list them when sending the
> pull request.
Sounds good!
Thanks.
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