From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 10 Oct 2008 17:39:51 +0200 From: Ingo Molnar Subject: Re: [RFC v6][PATCH 0/9] Kernel based checkpoint/restart Message-ID: <20081010153951.GD28977@elte.hu> References: <1223461197-11513-1-git-send-email-orenl@cs.columbia.edu> <20081009124658.GE2952@elte.hu> <1223557122.11830.14.camel@nimitz> <20081009131701.GA21112@elte.hu> <1223559246.11830.23.camel@nimitz> <20081009134415.GA12135@elte.hu> <1223571036.11830.32.camel@nimitz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1223571036.11830.32.camel@nimitz> Sender: owner-linux-mm@kvack.org Return-Path: To: Dave Hansen Cc: Oren Laadan , jeremy@goop.org, arnd@arndb.de, containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Viro , "H. Peter Anvin" , Thomas Gleixner List-ID: * Dave Hansen wrote: > On Thu, 2008-10-09 at 15:44 +0200, Ingo Molnar wrote: > > there might be races as well, especially with proxy state - and > > current->flags updates are not serialized. > > > > So maybe it should be a completely separate flag after all? Stick it > > into the end of task_struct perhaps. > > What do you mean by proxy state? nsproxy? it's a concept: one task installing some state into another task (which state must be restored after a checkpoint event), while that other task is running. Such as a pi-futex state for example. So a task can acquire state not just by its own doing, but via some other task too. Ingo -- 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