From: Hugh Dickins <hugh@veritas.com>
To: Slava Abramov <slava.abramov@amd.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: ptep_test_and_clear_young() i386 vs. x86_64
Date: Fri, 21 Sep 2007 20:42:52 +0100 (BST) [thread overview]
Message-ID: <Pine.LNX.4.64.0709212039220.5752@blonde.wat.veritas.com> (raw)
In-Reply-To: <46F4182C.9050202@amd.com>
On Fri, 21 Sep 2007, Slava Abramov wrote:
>
> Is there any special reason why ptep_test_and_clear_young()
> implementation for x86_64 does not call pte_update()?
Because the i386 pte_update is there for CONFIG_PARAVIRT (and
a no-op without it), and CONFIG_PARAVIRT is so far peculiar to
i386: x86_64 doesn't even define a pte_update to call there.
Hugh
prev parent reply other threads:[~2007-09-21 19:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-21 19:14 Slava Abramov
2007-09-21 19:42 ` Hugh Dickins [this message]
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