From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Tue, 13 Aug 2013 16:21:30 +0000 From: Christoph Lameter Subject: Re: [RFC 0/3] Pin page control subsystem In-Reply-To: <1376377502-28207-1-git-send-email-minchan@kernel.org> Message-ID: <00000140787b6191-ae3f2eb1-515e-48a1-8e64-502772af4700-000000@email.amazonses.com> References: <1376377502-28207-1-git-send-email-minchan@kernel.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Minchan Kim Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, k.kozlowski@samsung.com, Seth Jennings , Mel Gorman , guz.fnst@cn.fujitsu.com, Benjamin LaHaise , Dave Hansen , lliubbo@gmail.com, aquini@redhat.com, Rik van Riel On Tue, 13 Aug 2013, Minchan Kim wrote: > VM sometime want to migrate and/or reclaim pages for CMA, memory-hotplug, > THP and so on but at the moment, it could handle only userspace pages > so if above example subsystem have pinned a some page in a range VM want > to migrate, migration is failed so above exmaple couldn't work well. Dont we have the mmu_notifiers that could help in that case? You could get a callback which could prepare the pages for migration? -- 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