On Sat, Aug 15, 2020 at 01:14:53AM +0200, Thomas Gleixner wrote: > > As a matter of fact I assume^Wdeclare that removing struct rcu_head which > provides a fallback is not an option at all. I know that you want to, > but it wont work ever. Dream on, but as we agreed on recently there is > this thing called reality which ruins everything. It never was going to work, freeing memory can never hard rely on the success of allocating memory.