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Date: Tue, 20 Jul 2004 18:35:17 -0400 (EDT)
From: Robert Watson <rwatson@freebsd.org>
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To: Alfred Perlstein <alfred@freebsd.org>
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Subject: Re: cvs commit: src/sys/netinet raw_ip.c
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On Tue, 20 Jul 2004, Alfred Perlstein wrote:

> Isn't there a call we can add to mget/malloc/zalloc to do this:
> 
> if (flags & _WAIT)
>    ask_witness_if_we_can_sleep
> 
> deferring to the actual tsleep call will never catch as many.
> 
> If you don't have the time, I may be able to get to this tonight. 

I'm not sure this offers real benefits, given that we don't want to
compile WITNESS in the kernel in production environments for performance
reasons.

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert@fledge.watson.org      Principal Research Scientist, McAfee Research