On Mon, 2018-11-05 at 13:14 -0800, Matthew Wilcox wrote:
> On Mon, Nov 05, 2018 at 12:18:33PM -0800, Andrew Morton wrote:
> >
> > >
> > > +++ b/mm/mmu_notifier.c
> > But as it has no callers, why retain it?
> ... and this patch missed the declaration of mmu_notifier_synchronize
> in include/linux
On Mon 05-11-18 12:18:33, Andrew Morton wrote:
> On Mon, 5 Nov 2018 11:29:55 -0800 Sean Christopherson
> wrote:
[...]
> > -EXPORT_SYMBOL_GPL(mmu_notifier_synchronize);
> > +EXPORT_SYMBOL_GPL(mmu_notifier_barrier);
> >
> > /*
> > * This function can't run concurrently against mmu_notifier_re
On Mon, Nov 05, 2018 at 12:18:33PM -0800, Andrew Morton wrote:
> > +++ b/mm/mmu_notifier.c
>
> But as it has no callers, why retain it?
... and this patch missed the declaration of mmu_notifier_synchronize
in include/linux/mmu_notifier.h (whether we delete it or rename it,
that mention of it need
On Mon, Nov 05, 2018 at 12:18:33PM -0800, Andrew Morton wrote:
> On Mon, 5 Nov 2018 11:29:55 -0800 Sean Christopherson
> wrote:
>
> > ...and update its comment to explicitly reference its association with
> > mmu_notifier_call_srcu().
> >
> > Contrary to its name, mmu_notifier_synchronize() do
On Mon, 5 Nov 2018 11:29:55 -0800 Sean Christopherson
wrote:
> ...and update its comment to explicitly reference its association with
> mmu_notifier_call_srcu().
>
> Contrary to its name, mmu_notifier_synchronize() does not synchronize
> the notifier's SRCU instance, but rather waits for RCU c
...and update its comment to explicitly reference its association with
mmu_notifier_call_srcu().
Contrary to its name, mmu_notifier_synchronize() does not synchronize
the notifier's SRCU instance, but rather waits for RCU callbacks to
finished, i.e. it invokes rcu_barrier(). The RCU documentation
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