From mboxrd@z Thu Jan 1 00:00:00 1970 From: Al Viro Subject: Re: [RFC v10][PATCH 02/13] Checkpoint/restart: initial documentation Date: Fri, 28 Nov 2008 10:45:54 +0000 Message-ID: <20081128104554.GP28946@ZenIV.linux.org.uk> References: <1227747884-14150-1-git-send-email-orenl@cs.columbia.edu> <1227747884-14150-3-git-send-email-orenl@cs.columbia.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1227747884-14150-3-git-send-email-orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Oren Laadan Cc: Andrew Morton , Linus Torvalds , containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Thomas Gleixner , Serge Hallyn , Dave Hansen , Ingo Molnar , "H. Peter Anvin" List-Id: linux-api@vger.kernel.org On Wed, Nov 26, 2008 at 08:04:33PM -0500, Oren Laadan wrote: > +Currently, namespaces are not saved or restored. They will be treated > +as a class of a shared object. In particular, it is assumed that the > +task's file system namespace is the "root" for the entire container. > +It is also assumed that the same file system view is available for the > +restart task(s). Otherwise, a file system snapshot is required. That is to say, bindings are not handled at all. > +* What additional work needs to be done to it? > +We know this design can work. We have two commercial products and a > +horde of academic projects doing it today using this basic design. May I use that for a t-shirt, please? With that quote in foreground, and pus-yellow-greenish "MACH" serving as background. With the names of products and projects dripping from it... -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754215AbYK1Kqj (ORCPT ); Fri, 28 Nov 2008 05:46:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751751AbYK1Kqa (ORCPT ); Fri, 28 Nov 2008 05:46:30 -0500 Received: from zeniv.linux.org.uk ([195.92.253.2]:47807 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751474AbYK1Kq3 (ORCPT ); Fri, 28 Nov 2008 05:46:29 -0500 Date: Fri, 28 Nov 2008 10:45:54 +0000 From: Al Viro To: Oren Laadan Cc: Andrew Morton , Linus Torvalds , containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, Thomas Gleixner , Serge Hallyn , Dave Hansen , Ingo Molnar , "H. Peter Anvin" Subject: Re: [RFC v10][PATCH 02/13] Checkpoint/restart: initial documentation Message-ID: <20081128104554.GP28946@ZenIV.linux.org.uk> References: <1227747884-14150-1-git-send-email-orenl@cs.columbia.edu> <1227747884-14150-3-git-send-email-orenl@cs.columbia.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1227747884-14150-3-git-send-email-orenl@cs.columbia.edu> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Nov 26, 2008 at 08:04:33PM -0500, Oren Laadan wrote: > +Currently, namespaces are not saved or restored. They will be treated > +as a class of a shared object. In particular, it is assumed that the > +task's file system namespace is the "root" for the entire container. > +It is also assumed that the same file system view is available for the > +restart task(s). Otherwise, a file system snapshot is required. That is to say, bindings are not handled at all. > +* What additional work needs to be done to it? > +We know this design can work. We have two commercial products and a > +horde of academic projects doing it today using this basic design. May I use that for a t-shirt, please? With that quote in foreground, and pus-yellow-greenish "MACH" serving as background. With the names of products and projects dripping from it... From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 28 Nov 2008 10:45:54 +0000 From: Al Viro Subject: Re: [RFC v10][PATCH 02/13] Checkpoint/restart: initial documentation Message-ID: <20081128104554.GP28946@ZenIV.linux.org.uk> References: <1227747884-14150-1-git-send-email-orenl@cs.columbia.edu> <1227747884-14150-3-git-send-email-orenl@cs.columbia.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1227747884-14150-3-git-send-email-orenl@cs.columbia.edu> Sender: owner-linux-mm@kvack.org Return-Path: To: Oren Laadan Cc: Andrew Morton , Linus Torvalds , containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, Thomas Gleixner , Serge Hallyn , Dave Hansen , Ingo Molnar , "H. Peter Anvin" List-ID: On Wed, Nov 26, 2008 at 08:04:33PM -0500, Oren Laadan wrote: > +Currently, namespaces are not saved or restored. They will be treated > +as a class of a shared object. In particular, it is assumed that the > +task's file system namespace is the "root" for the entire container. > +It is also assumed that the same file system view is available for the > +restart task(s). Otherwise, a file system snapshot is required. That is to say, bindings are not handled at all. > +* What additional work needs to be done to it? > +We know this design can work. We have two commercial products and a > +horde of academic projects doing it today using this basic design. May I use that for a t-shirt, please? With that quote in foreground, and pus-yellow-greenish "MACH" serving as background. With the names of products and projects dripping from it... -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org