Re: [RFC, PATCH] TLB flush changes for S/390

David S. Miller (
Wed, 3 Jan 2001 22:28:07 -0800

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
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at