Re: [PATCH] mm/slab: stop exporting kvfree_rcu_barrier[_on_cache]()

On Mon, Aug 03, 2026 at 12:26:55PM +0000, Harry Yoo wrote:
> On Mon, Aug 03, 2026 at 09:59:44AM +0200, Vlastimil Babka (SUSE) wrote:
> > On 7/30/26 22:59, Paul E. McKenney wrote:
> > > On Thu, Jul 30, 2026 at 04:32:46PM +0200, Vlastimil Babka (SUSE) wrote:
> > > Which reminds me...  Are you guys interested in taking the kfree_rcu()
> > > test code from kernel/rcu/rcuscale.c?  See for example the kfree_rcu_test
> > > module parameter.
> > 
> > Hmm, we have a slub kunit test, but I think no such torture/scaling test
> > infra. Maybe once we have that? What do you think, Harry?
> 
> That'd be definitely useful. We have been reviving performance tests
> every time we wondered if it'd affect performance in a surprising way.
> But we've never put that in the mainline ;)
> 
> Probably test_kmalloc_nolock_and_friends*() don't even belong
> slub_kunit.
> 
> Perhaps worth starting small with lib/test_slab.c, and slowly
> move/add torture/scaling tests to there?

That would work for me.

							Thanx, Paul