From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751064AbWAQOu5 (ORCPT ); Tue, 17 Jan 2006 09:50:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751088AbWAQOuu (ORCPT ); Tue, 17 Jan 2006 09:50:50 -0500 Received: from e1.ny.us.ibm.com ([32.97.182.141]:30178 "EHLO e1.ny.us.ibm.com") by vger.kernel.org with ESMTP id S1751116AbWAQOua (ORCPT ); Tue, 17 Jan 2006 09:50:30 -0500 Message-Id: <20060117143327.312822000@sergelap> References: <20060117143258.150807000@sergelap> Date: Tue, 17 Jan 2006 08:33:17 -0600 From: Serge Hallyn To: linux-kernel@vger.kernel.org Cc: Hubertus Franke , Cedric Le Goater , Dave Hansen , Serge E Hallyn Subject: RFC [patch 19/34] PID Virtualization Define pid_to_vpid functions Content-Disposition: inline; filename=F6-define-pid-to-vpid-translation.patch Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org In this patch we introduce convertion functions to translate pids into virtual pids. These are just the APIs not the implementation yet. Subsequent patches will utilize these internal functions to rewrite the task virtual pid/ppid/tgid access functions such that finally we only have to rewrite these virtual conversion functions to actually obtain the pid virtualization. Signed-off-by: Hubertus Franke --- sched.h | 14 ++++++++++++++ 1 files changed, 14 insertions(+) Index: linux-2.6.15/include/linux/sched.h =================================================================== --- linux-2.6.15.orig/include/linux/sched.h 2006-01-17 08:37:03.000000000 -0500 +++ linux-2.6.15/include/linux/sched.h 2006-01-17 08:37:05.000000000 -0500 @@ -865,6 +865,20 @@ } /** + * pid domain translation functions: + * - from kernel to user pid domain + */ +static inline pid_t pid_to_vpid(pid_t pid) +{ + return pid; +} + +static inline pid_t pgid_to_vpgid(pid_t pid) +{ + return pid; +} + +/** * pid_alive - check that a task structure is not stale * @p: Task structure to be checked. * --