Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964928AbWAXG5C (ORCPT ); Tue, 24 Jan 2006 01:57:02 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932426AbWAXG5C (ORCPT ); Tue, 24 Jan 2006 01:57:02 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:3461 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S932239AbWAXG46 (ORCPT ); Tue, 24 Jan 2006 01:56:58 -0500 Subject: Re: RFC [patch 13/34] PID Virtualization Define new task_pid api From: Arjan van de Ven To: Hubertus Franke Cc: "Eric W. Biederman" , Alan Cox , Dave Hansen , Greg KH , "Serge E. Hallyn" , linux-kernel@vger.kernel.org, Cedric Le Goater In-Reply-To: <43D5557F.9060006@watson.ibm.com> References: <20060117143258.150807000@sergelap> <20060117143326.283450000@sergelap> <1137511972.3005.33.camel@laptopd505.fenrus.org> <20060117155600.GF20632@sergelap.austin.ibm.com> <1137513818.14135.23.camel@localhost.localdomain> <1137518714.5526.8.camel@localhost.localdomain> <20060118045518.GB7292@kroah.com> <1137601395.7850.9.camel@localhost.localdomain> <43D14578.6060801@watson.ibm.com> <43D52592.8080709@watson.ibm.com> <1138050684.24808.29.camel@localhost.localdomain> <43D5557F.9060006@watson.ibm.com> Content-Type: text/plain Date: Tue, 24 Jan 2006 07:56:28 +0100 Message-Id: <1138085789.2977.0.camel@laptopd505.fenrus.org> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 980 Lines: 25 > > In that case, I think we do require the current vpid_to_pid(translations) > in order to transfer the external user pid ( relative to the namespace ) > into one that combines namespace (aka container_id) with the external pid. > Exactly how it is done today. > What will slightly change is the low level implementations of the > > inline pid_t pid_to_vpid_ctx(pid_t pid, const struct task_struct *ctx); > pid_t __pid_to_vpid_ctx_excp(pid_t pid, int pidspace_id,const struct task_struct *ctx); > > and reverse. > The VPID_2_PID and PID_2_VPID still remain at same locations. > > Did I get your comments correctly, Eric ?.. please call it 'userpid' not 'vpid', to make more clear what the pid is used for/what domain it is in. - 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/