Re: [PATCH 1/2 v2] lib/vsprintf: Remove static_branch_likely() from __ptr_to_hashval().

[Sebastian Andrzej Siewior]

On 2022-08-01 14:13:36 [+0200], Jason A. Donenfeld wrote:
> Also,
> 
> On Fri, Jul 29, 2022 at 05:47:15PM +0200, Sebastian Andrzej Siewior wrote:
> >  		if (!filled) {
> >  			get_random_bytes(&ptr_key, sizeof(ptr_key));
> > -			queue_work(system_unbound_wq, &enable_ptr_key_work);
> > +			/* Pairs with smp_rmb() before reading ptr_key. */
> > +			smp_wmb();
> > +			WRITE_ONCE(filled_random_ptr_key, true);
> >  			filled = true;
> 
> Also, should `filled` be changed there?

you change `filled` as in read_mostly?

> Jason

Sebastian