Messages in this thread | | | Date | Wed, 7 Mar 2007 11:04:30 +0100 | From | Nick Piggin <> | Subject | Re: [patch 4/6] mm: merge populate and nopage into fault (fixes nonlinear) |
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On Wed, Mar 07, 2007 at 10:45:03AM +0100, Nick Piggin wrote: > On Wed, Mar 07, 2007 at 10:32:22AM +0100, Peter Zijlstra wrote: > > > > Can recollect as much, I modelled it after page_referenced() and can't > > find any VM_NONLINEAR specific code in there either. > > > > Will have a hard look, but if its broken, then page_referenced if > > equally broken it seems, which would make page reclaim funny in the > > light of nonlinear mappings. > > page_referenced is just an heuristic, and it ignores nonlinear mappings > and the page which will get filtered down to try_to_unmap. > > Page reclaim is already "funny" for nonlinear mappings, page_referenced > is the least of its worries ;) It works, though.
Or, to be more helpful, unmap_mapping_range is what it should be modelled on. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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