Messages in this thread |  | | Date | Sun, 4 Feb 2007 12:02:56 +0100 | From | Michal Hocko <> | Subject | mm: how to check for kernel pages |
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Hi, is there any effective and fast way how to find out whether page given by its page frame number is currenly used by (mapped by) kernel?
At the time of checking I can rely that such page: - is not buddy allocator page and also not on per CPU lists - is not compound page - is not reserved page Because I can check that from struct page's flags. I was thinking about using rmap code to find all ptes, but I don't know whether it is not too complicated way.
Thanks for all hints.
Please add me to Cc, because I am not the list member. Best regards. -- Michal Hocko
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