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Date: Sat, 25 May 1996 11:36:51 +0900 (JST)
From: Michael Hancock <michaelh@cet.co.jp>
To: Rodrigo Ormonde <ormonde@trem.cnt.org.br>
cc: freebsd-hackers@FreeBSD.org
Subject: Re: splnet() and splx()
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On Fri, 24 May 1996, Rodrigo Ormonde wrote:

>   I'm working inside the FreeBSD kernel and sometimes I see the following 
> construction: (it is present in many modules)
>  
> 	int s;	
> 
>         s = splnet();
> 
> 	/* There is code here */ 
> 
> 	splx(s);
> 
>   Does anybody know what are the functions splnet() and splx() ?

They are for blocking and restoring interrupts.  spl stands for Set
Priority Level.

-mh