Messages in this thread | | | Subject | Re: [patch 4/6] mm: merge populate and nopage into fault (fixes nonlinear) | From | Peter Zijlstra <> | Date | Wed, 07 Mar 2007 15:34:27 +0100 |
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On Wed, 2007-03-07 at 14:52 +0100, Peter Zijlstra wrote:
> True. We could even guesstimate the nonlinear dirty pages by subtracting > the result of page_mkclean() from page_mapcount() and force an > msync(MS_ASYNC) on said mapping (or all (nonlinear) mappings of the > related file) when some threshold gets exceeded.
Almost, but not quite, we'd need to extract another value from the page_mkclean() run, the actual number of mappings encountered. The return value only sums the number of dirty mappings encountered.
s390 would already work I guess.
Certainly doable.
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