From: Linus Torvalds <torvalds@transmeta.com>
To: george anzinger <george@mvista.com>
Cc: Robert Love <rml@tech9.net>, Andrew Morton <akpm@zip.com.au>,
riel@conectiva.com.br, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH] updated low-latency zap_page_range
Date: Wed, 24 Jul 2002 22:19:33 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.44.0207242216150.1231-100000@home.transmeta.com> (raw)
In-Reply-To: <3D3F56C6.B045E8A@mvista.com>
On Wed, 24 Jul 2002, george anzinger wrote:
> >
> > That may be a bug in preempt_count(), of course.
> >
> Didn't we just put bh_count and irq_count in the same
> word???
Yes. But that doesn't mean that the "preempt_count()" macro necessarily
needs to reflect that.
In particular, we have separate macros for getting the irq bits from that
shared word ("irq_count()" etc). Right now they happen to use the
"preempt_count()" macro, but that's not really fundamental.
No big deal either way, I suspect.
Linus
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prev parent reply other threads:[~2002-07-25 5:19 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-25 0:29 Robert Love
2002-07-25 0:45 ` Andrew Morton
2002-07-25 1:16 ` Robert Love
2002-07-25 1:19 ` Andrew Morton
2002-07-25 1:21 ` Linus Torvalds
2002-07-25 1:29 ` Robert Love
2002-07-25 1:39 ` george anzinger
2002-07-25 5:19 ` Linus Torvalds [this message]
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