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SubjectRe: [Bridge] [PATCH v3 tip/core/rcu 0/14] Sparse-related updates for 3.13
On Sat, Oct 12, 2013 at 07:39:30PM +0200, Hannes Frederic Sowa wrote:
> On Sat, Oct 12, 2013 at 10:13:45AM -0700, Paul E. McKenney wrote:
> > On Fri, Oct 11, 2013 at 11:53:27PM -0700, Josh Triplett wrote:
> > > On Fri, Oct 11, 2013 at 04:16:59PM -0700, Paul E. McKenney wrote:
> > > > Changes from v2:
> > > >
> > > > o Switch from rcu_assign_pointer() to ACCESS_ONCE() given that
> > > > the pointers are all --rcu and already visible to readers,
> > > > as suggested by Eric Dumazet and Josh Triplett.
> > >
> > > Hang on a moment. Do *none* of these cases need write memory barriers?
> >
> > Sigh. Some afternoons it doesn't pay to touch the keyboard.
> >
> > Thank you for catching this. I will fix, but at this point, I am thinking
> > in terms of 3.14 rather than 3.13 for this series.
>
> Some of them looked safe. You could also replace --rcu with __rcu in the
> comments while at it.

Sigh! Will do, thank you!

Thanx, Paul



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