Messages in this thread | | | Date | Mon, 9 Sep 2013 14:53:35 -0500 | From | Seth Jennings <> | Subject | Re: [RFC PATCH 2/4] mm: use mapcount for identifying zbud pages |
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On Fri, Aug 30, 2013 at 10:42:54AM +0200, Krzysztof Kozlowski wrote: > Currently zbud pages do not have any flags set so it is not possible to > identify them during migration or compaction. > > Implement PageZbud() by comparing page->_mapcount to -127 to distinguish > pages allocated by zbud. Just like PageBuddy() is implemented. > > Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
> --- > include/linux/mm.h | 23 +++++++++++++++++++++++ > mm/zbud.c | 4 ++++ > 2 files changed, 27 insertions(+)
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