From mboxrd@z Thu Jan 1 00:00:00 1970 From: lauraa@codeaurora.org (Laura Abbott) Date: Tue, 12 Nov 2013 14:27:28 -0800 Subject: [RFC PATCHv2 0/4] Intermix Lowmem and Vmalloc Message-ID: <1384295252-31778-1-git-send-email-lauraa@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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