Re: encrypted swap on loop in 2.4.10-pre12?

From: steve j. kondik (shade@chemlab.org)
Date: Thu Sep 20 2001 - 08:17:28 EST

loop-aes does not work to encrypt swap using 2.4.10-pre12. the same
panic results during mkswap.

On Thu, 2001-09-20 at 08:25, Jens Axboe wrote:
> On Thu, Sep 20 2001, Jari Ruusu wrote:
> > Jens Axboe wrote:
> > > On Thu, Sep 20 2001, Jari Ruusu wrote:
> > > > Cryptoapi can't be used to encrypt swap. It has nasties like sleeping in
> > > > make_request_fn() and potential memory allocation deadlock.
> > >
> > > sleeping in make_request_fn is not a nasty in itself, btw. in fact loop
> > > just needs an emergency page pool for swap to be perfectly safe.
> >
> > loop-AES provides emergency page pool for device backed loop. Take a look.
>
> Then sleeping in make_request_fn is not a nasty at all. In fact the
> kernel does it all the time anyways.
> 

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