Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422809AbWJZLtw (ORCPT ); Thu, 26 Oct 2006 07:49:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161145AbWJZLtw (ORCPT ); Thu, 26 Oct 2006 07:49:52 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:31635 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S1161115AbWJZLtv (ORCPT ); Thu, 26 Oct 2006 07:49:51 -0400 Subject: Re: Security issues with local filesystem caching From: Alan Cox To: Jan Dittmer Cc: David Howells , sds@tycho.nsa.gov, jmorris@namei.org, chrisw@sous-sol.org, selinux@tycho.nsa.gov, linux-kernel@vger.kernel.org, aviro@redhat.com In-Reply-To: <45407C71.5070407@l4x.org> References: <16969.1161771256@redhat.com> <45407C71.5070407@l4x.org> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Thu, 26 Oct 2006 12:52:21 +0100 Message-Id: <1161863541.12781.32.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.2 (2.6.2-1.fc5.5) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 663 Lines: 14 Ar Iau, 2006-10-26 am 11:14 +0200, ysgrifennodd Jan Dittmer: > Why again no local userspace daemon to do the caching? That would > put the policy out of the kernel. The additional context switches > are probably pretty cheap compared to the io operations. It costs a lot in latency, and you don't need a daemon in the first place. If you want to do a user space caching fs of course you can already do it with FUSE.. - 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/