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SubjectRe: Confused about hlist_unhashed_lockless()
On Fri, Jan 31, 2020 at 01:04:37PM -0800, Eric Dumazet wrote:
> On Fri, Jan 31, 2020 at 12:53 PM Paul E. McKenney <paulmck@kernel.org> wrote:
> >
> > On Fri, Jan 31, 2020 at 10:52:46AM -0800, Eric Dumazet wrote:
> > > On Fri, Jan 31, 2020 at 10:48 AM Eric Dumazet <edumazet@google.com> wrote:
> > > >
> > >
> > > > This is nice, now with have data_race()
> > > >
> > > > Remember these patches were sent 2 months ago, at a time we were
> > > > trying to sort out things.
> > > >
> > > > data_race() was merged a few days ago.
> > >
> > > Well, actually data_race() is not there yet anyway.
> > >
> > > Is it really scheduled for 5.7 kernel ?
> >
> > Right now, yes. Would it make sense to separate it out and push it
> > into the current merge window?
>
> That would be very nice, because we could start using it before KCSAN is merged.

Seems reasonable to me. This one is already inn -tip:

c48981eeb0d5 ("include/linux/compiler.h: Introduce data_race(expr) macro")

This is in tip/WIP.locking/kcsan, so I am adding Ingo on CC.

Ingo, how would you like to proceed? For example, if it would be
helpful, I could rebase that commit on top of rcu/for-mingo and send a
pull request.

Thanx, Paul

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