Re: [PATCH] updated low-latency zap_page_range
From: Linus Torvalds <torvalds@transmeta.com>
Date: 2002-07-25 05:16:02
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On Wed, 24 Jul 2002, george anzinger wrote:
quoted
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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