From mboxrd@z Thu Jan 1 00:00:00 1970 In-reply-to: <20070308115843.GA22781@wotan.suse.de> (message from Nick Piggin on Thu, 8 Mar 2007 12:58:44 +0100) Subject: Re: [RFC][PATCH] mm: fix page_mkclean() vs non-linear vmas References: <20070307121730.GC18704@wotan.suse.de> <1173271286.6374.166.camel@twins> <20070307130851.GE18704@wotan.suse.de> <1173273562.6374.175.camel@twins> <20070307133649.GF18704@wotan.suse.de> <1173275532.6374.183.camel@twins> <1173278067.6374.188.camel@twins> <20070307150102.GH18704@wotan.suse.de> <1173286682.6374.191.camel@twins> <20070308115843.GA22781@wotan.suse.de> Message-Id: From: Miklos Szeredi Date: Thu, 08 Mar 2007 13:09:46 +0100 Sender: owner-linux-mm@kvack.org Return-Path: To: npiggin@suse.de Cc: a.p.zijlstra@chello.nl, akpm@linux-foundation.org, mingo@elte.hu, linux-mm@kvack.org, linux-kernel@vger.kernel.org, benh@kernel.crashing.org, jdike@addtoit.com, hugh@veritas.com, torvalds@linux-foundation.org List-ID: > > - it's a maintenance burden: I'll have to layer the m/ctime update > > patch on top of this > > But you have to update m/ctime for BDI_CAP_NO_WRITEBACK mappings anyway > don't you? Yes, but that's a different aspect of msync(), not about the data writeback issues that nonlinear mappings have. So a solution that solves both these problems would probably be more complex. > > - the only pro for this has been that Nick thinks it cool ;) > > Nonlinear in general, rather than this specifically. Fair enough. Miklos -- 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