From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f51.google.com (mail-pb0-f51.google.com [209.85.160.51]) by kanga.kvack.org (Postfix) with ESMTP id 14C476B0031 for ; Tue, 12 Nov 2013 17:27:41 -0500 (EST) Received: by mail-pb0-f51.google.com with SMTP id xa7so7630274pbc.10 for ; Tue, 12 Nov 2013 14:27:40 -0800 (PST) Received: from psmtp.com ([74.125.245.125]) by mx.google.com with SMTP id gg8si483367pac.263.2013.11.12.14.27.38 for ; Tue, 12 Nov 2013 14:27:39 -0800 (PST) From: Laura Abbott Subject: [RFC PATCHv2 0/4] Intermix Lowmem and Vmalloc Date: Tue, 12 Nov 2013 14:27:28 -0800 Message-Id: <1384295252-31778-1-git-send-email-lauraa@codeaurora.org> Sender: owner-linux-mm@kvack.org List-ID: To: linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org Cc: Kyungmin Park , Russell King Hi, This is v2 of a patch series to allow lowmem and vmalloc to be intermixed (http://lists.infradead.org/pipermail/linux-arm-kernel/2013-November/210578.html provides the full decriptions which I've omitted here for brevity) Nots I forgot to mention before: - as a side effect of how CMA is setup, the remapped lowmem regions are explicitly printed out in /proc/vmallocinfo which has turned out to be useful for debugging. I couldn't find a good way to support those and the lowmem regions in vmalloc short of adding partial region unmapping. - I still have a nagging concern about regions that straddle the lowmem/highmem boundary causing problems. I haven't been able to find a concrete issue yet though.. v2: Fixed several comments by Kyungmin Park which led me to discover several issues with the is_vmalloc_addr implementation. is_vmalloc_addr is probably the ugliest part of the entire series and I debated if adding extra vmalloc flags would make it less ugly. Again, comments or suggestions on how to better accomplish this are welcome. Thanks, Laura -- 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