From: "David S. Miller" <davem@redhat.com>
To: weigand@immd1.informatik.uni-erlangen.de
Cc: torvalds@transmeta.com, alan@lxorguk.ukuu.org.uk,
linux-kernel@vger.kernel.org, schwidefsky@de.ibm.com,
ton@de.ibm.com
Subject: Re: [RFC, PATCH] TLB flush changes for S/390
Date: Wed, 3 Jan 2001 22:28:07 -0800 [thread overview]
Message-ID: <200101040628.WAA01899@pizda.ninka.net> (raw)
In-Reply-To: <200101012215.XAA20190@faui11.informatik.uni-erlangen.de> (message from Ulrich Weigand on Mon, 1 Jan 2001 23:15:26 +0100 (MET))
In-Reply-To: <200101012215.XAA20190@faui11.informatik.uni-erlangen.de>
From: Ulrich Weigand <weigand@immd1.informatik.uni-erlangen.de>
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.
Later,
David S. Miller
davem@redhat.com
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next prev parent reply other threads:[~2001-01-04 6:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-01 22:15 Ulrich Weigand
2001-01-04 6:28 ` David S. Miller [this message]
2001-01-04 18:43 ` Ulrich Weigand
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