From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 20 Sep 2001 08:08:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 20 Sep 2001 08:08:41 -0400 Received: from hank-fep8-0.inet.fi ([194.251.242.203]:7379 "EHLO fep08.tmt.tele.fi") by vger.kernel.org with ESMTP id ; Thu, 20 Sep 2001 08:08:27 -0400 Message-ID: <3BA9DC30.DA46A008@pp.inet.fi> Date: Thu, 20 Sep 2001 15:08:16 +0300 From: Jari Ruusu X-Mailer: Mozilla 4.78 [en] (X11; U; Linux 2.2.19aa2 i686) X-Accept-Language: en MIME-Version: 1.0 To: Jens Axboe CC: "steve j. kondik" , linux-kernel@vger.kernel.org Subject: Re: encrypted swap on loop in 2.4.10-pre12? In-Reply-To: <1000912739.17522.2.camel@discord> <3BA907F6.3586811C@pp.inet.fi> <20010920081353.H588@suse.de> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org 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. Regards, Jari Ruusu