Re: [PATCH] locking/rwlocks: do not starve writers

[Linus Torvalds]

On Fri, Jun 17, 2022 at 2:39 PM Eric Dumazet <edumazet@xxxxxxxxxx> wrote:
>
> I am converting RAW sockets to RCU.

RCU is usually absolutely the best approach. Use regular spinlocks for
writers, and RCU for readers.

I'd love to see the tasklist_lock be converted to RCU too.  But that
locks predates RCU (and probably 99% of all kernel code), and it's
messy, so nobody sane has ever willingly tried to do that afaik.

               Linus