From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 7 Mar 2007 10:52:12 +0100 From: Nick Piggin Subject: Re: [patch 4/6] mm: merge populate and nopage into fault (fixes nonlinear) Message-ID: <20070307095212.GF8609@wotan.suse.de> References: <20070221023656.6306.246.sendpatchset@linux.site> <20070221023735.6306.83373.sendpatchset@linux.site> <20070306225101.f393632c.akpm@linux-foundation.org> <20070307070853.GB15877@wotan.suse.de> <20070307081948.GA9563@wotan.suse.de> <20070307082755.GA25733@elte.hu> <20070307085944.GA17433@wotan.suse.de> <20070307092252.GA6499@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070307092252.GA6499@elte.hu> Sender: owner-linux-mm@kvack.org Return-Path: To: Ingo Molnar Cc: Andrew Morton , Linux Memory Management , Linux Kernel , Benjamin Herrenschmidt List-ID: On Wed, Mar 07, 2007 at 10:22:52AM +0100, Ingo Molnar wrote: > > * Nick Piggin wrote: > > > After these patches, I don't think there is too much burden. The main > > thing left really is just the objrmap stuff, but that is just handled > > with a minimal 'dumb' algorithm that doesn't cost much. > > ok. What do you think about the sys_remap_file_pages_prot() thing that > Paolo has done in a nicely split up form - does that complicate things > in any fundamental way? That is what is useful to UML. Last time I looked (a while ago), the only issue I had was that he was doing a weird special case rather than using another !present pte bit for his "nonlinear protection" ptes. I think he fixed that now and so it should be quite good now. -- 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