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On Sat, 22 Feb 2003, Eric W. Biederman wrote: > Note: rmap chains can be restricted to an arbitrary length, or an > arbitrary total count trivially. All you have to do is allow a fixed > limit on the number of people who can map a page simultaneously. > > The selection of which chain to unmap can be a bit tricky but is > relatively straight forward. Why doesn't someone who is seeing > this just hack this up? I'm not sure how useful this feature would be. Also, there are a bunch of corner cases in which you cannot limit the number of processes mapping a page, think about eg. mlock, nonlinear vmas and anonymous memory. All in all I suspect that the cost of such a feature might be higher than any benefits. cheers, Rik -- Engineers don't grow up, they grow sideways. http://www.surriel.com/ http://kernelnewbies.org/ - 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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