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

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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.



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