Re: [PATCH mm] mm: fix BUG with kvzalloc+GFP_ATOMIC

[Florian Westphal]

Michal Hocko <mhocko@xxxxxxxx> wrote:
> On Mon 26-09-22 15:08:08, Florian Westphal wrote:
> [...]
> > To the best of my knowledge there are users of this interface that
> > invoke it with rcu read lock held, and since those always nest, the
> > rcu_read_unlock() won't move us to GFP_KERNEL territory.
> 
> Fiar point. I can see a comment above rhashtable_insert_fast which is
> supposed to be used by drivers and explicitly documented to be
> compatible with an atomic context. So the above is clearly a no-go
> 
> In that case I would propose to go with the patch going
> http://lkml.kernel.org/r/YzFplwSxwwsLpzzX@xxxxxxxxxxxxxx direction.

FWIW that patch works for me. Will you do a formal patch submission?