Re: [RFC-PATCH 1/2] mm: Add __GFP_NO_LOCKS flag

[Peter Zijlstra]

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.