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SubjectRe: [RFC, PATCH] TLB flush changes for S/390
   From: Ulrich Weigand <>
Date: Mon, 1 Jan 2001 23:15:26 +0100 (MET)

* Is there some reason why ptep_test_and_clear_young should
*not*, after all, flush the TLB?

Yes, because the accuracy of that state bit is not required to
be %100 perfect. Less SMP tlb flushing traffic from vmscan
runs is desirable, thus no flush.

David S. Miller
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