Re: [RFC] Track mlock()ed pages

Christoph Lameter wrote:

Add NR_MLOCK

Track mlocked pages via a ZVC


I think it is not quite right. You are tracking the number of ptes
that point to mlocked pages, which can be >= the actual number of pages.

Also, page_add_anon_rmap still needs to be balanced with page_remove_rmap.

I can't think of an easy way to do this without per-page state. ie.
another page flag.


Signed-off-by: Christoph Lameter <[email protected]>


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SUSE Labs, Novell Inc.

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