Re: [PATCH] updated low-latency zap_page_range
From: Linus Torvalds <torvalds@transmeta.com>
Date: 2002-07-25 01:17:14
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On 24 Jul 2002, Robert Love wrote:
if (preempt_count() == 1 && need_resched()) Then we get "if (0 && ..)" which should hopefully be evaluated away.
I think preempt_count() is not unconditionally 0 for non-preemptible kernels, so I don't think this is a compile-time constant. That may be a bug in preempt_count(), of course. Linus -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/