Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262006AbVBJBi0 (ORCPT ); Wed, 9 Feb 2005 20:38:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262007AbVBJBi0 (ORCPT ); Wed, 9 Feb 2005 20:38:26 -0500 Received: from websrv2.werbeagentur-aufwind.de ([213.239.197.240]:48037 "EHLO websrv2.werbeagentur-aufwind.de") by vger.kernel.org with ESMTP id S262006AbVBJBhq (ORCPT ); Wed, 9 Feb 2005 20:37:46 -0500 Subject: Re: [PATCH 01/04] Adding cipher mode context information to crypto_tfm From: Christophe Saout To: Andrew Morton Cc: Fruhwirth Clemens , jmorris@redhat.com, linux-kernel@vger.kernel.org, michal@logix.cz, davem@davemloft.net, adam@yggdrasil.com In-Reply-To: <20050209171943.05e9816e.akpm@osdl.org> References: <1107997358.7645.24.camel@ghanima> <20050209171943.05e9816e.akpm@osdl.org> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-snR+X6xpFnYgfRsHGL+v" Date: Thu, 10 Feb 2005 02:37:36 +0100 Message-Id: <1107999456.12483.18.camel@leto.cs.pocnet.net> Mime-Version: 1.0 X-Mailer: Evolution 2.0.3 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1451 Lines: 44 --=-snR+X6xpFnYgfRsHGL+v Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Am Mittwoch, den 09.02.2005, 17:19 -0800 schrieb Andrew Morton: > > It must be > > possible to process more than 2 mappings in softirq context. >=20 > Adding a few more fixmap slots wouldn't hurt anyone. But if you want an > arbitrarily large number of them then no, we cannot do that. >=20 > Possibly one could arrange for the pages to not be in highmem at all. In the case of the LRW use in dm-crypt only plain- and ciphertext need to be accessible through struct page (both are addressed through BIO vectors). The LRW tweaks could simply be kmalloced. So instead of passing "struct scatterlist *tweaksg" we could just pass a "void *tweaksg". Some of the hard work on the generic scatterlist walker would be for nothing then. :( --=-snR+X6xpFnYgfRsHGL+v Content-Type: application/pgp-signature; name=signature.asc Content-Description: Dies ist ein digital signierter Nachrichtenteil -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) iD8DBQBCCrrgZCYBcts5dM0RAtCoAKCJt2BoWNfmBjHB2CPh1pNraCjkrQCeOuPQ AU7v6YudUXM9r4/HKoJyqJ4= =nCBL -----END PGP SIGNATURE----- --=-snR+X6xpFnYgfRsHGL+v-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/