Re: encrypted swap on loop in 2.4.10-pre12?
Jens Axboe (axboe@suse.de)
Thu, 20 Sep 2001 14:25:55 +0200
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.
--
Jens Axboe
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