Re: [PATCH tip/core/rcu 14/19] rcu: Extend expedited funnel locking to rcu_data structure

From: Paul E. McKenney
Date: Tue Sep 22 2015 - 11:11:19 EST


On Mon, Sep 21, 2015 at 06:04:50PM -0400, Sasha Levin wrote:
> On 09/21/2015 12:12 AM, Paul E. McKenney wrote:
> > Hmmm... I created rdp->exp_funnel_mutex, but failed to give RCU-sched
> > its own lock class. Does the following untested patch fix things for you?
>
> Haven't reproduced yet, but it didn't happen that often before - let's give it
> another day or two of testing?

Fair enough!

I didn't see it in my testing, but later patches eliminate this
locking situation entirely, so I didn't put that much time into it.

Thanx, Paul

--
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/