Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262261AbTEMRKv (ORCPT ); Tue, 13 May 2003 13:10:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262278AbTEMRKv (ORCPT ); Tue, 13 May 2003 13:10:51 -0400 Received: from pat.uio.no ([129.240.130.16]:38551 "EHLO pat.uio.no") by vger.kernel.org with ESMTP id S262261AbTEMRKs (ORCPT ); Tue, 13 May 2003 13:10:48 -0400 To: Linus Torvalds Cc: David Howells , , , Subject: Re: [PATCH] in-core AFS multiplexor and PAG support References: From: Trond Myklebust Date: 13 May 2003 19:23:27 +0200 In-Reply-To: Message-ID: User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Honest Recruiter) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-MailScanner-Information: Please contact postmaster@uio.no for more information X-UiO-MailScanner: Found to be clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1019 Lines: 19 >>>>> " " == Linus Torvalds writes: > Put another way: you'd usually add the PAG's at filesystem > _mount_ time, no? And at that point you'd usually want to add > it "retroactively" to the session processes that caused the > mount to happen, no? Not just to the children of the mount. Think of PAGs as "session"-style management of credentials. If you want to add/remove a credential without sharing that operation with all the other processes that are currently in the same session/PAG then you change PAGs. Otherwise, the credential operation affects all processes in the same PAG. Under normal circumstances, changing real uid/gid should involve changing your PAG, but it doesn't necessarily have to do so. Cheers, Trond - 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/