Re: [PATCH v2 tip/core/rcu 03/11] rcu: Move smp_mb() from rcu_seq_snap() to rcu_exp_gp_seq_snap()

[Peter Zijlstra]

On Wed, Dec 09, 2015 at 03:03:00PM -0800, Paul E. McKenney wrote:
> The memory barrier in rcu_seq_snap() is needed only for grace periods,
> so this commit moves it to the grace-period-oriented wrapper
> rcu_exp_gp_seq_snap().

This is a bit short for a memory barrier changelog. I think I remember
enough of the code to see this is indeed so, but who knows who will
remember what in another few weeks :-)
--
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/