Re: [PATCH] padata: Use RCU when fetching pd from do_serial

From: Steffen Klassert
Date: Wed Jul 17 2019 - 04:28:20 EST


On Tue, Jul 16, 2019 at 09:09:28PM +0800, Herbert Xu wrote:
>
> However, I think this leads to another bug in that pcrypt doesn't
> support dm-crypt properly. It never does the backlog stuff and
> therefore can't guarantee reliable processing which dm-crypt requires.
>
> Is it intentional to only allow pcrypt for IPsec?

I had a patch to support crypto backlog some years ago,
but testing with dm-crypt did not show any performance
improvement. So I decided to just skip that patch because
it added code for no need.