Date: Fri, 9 Nov 2001 00:39:00 +0900 (JST) From: kaz@kobe1995.net (NAKAMURA Kazushi) To: rizzo@aciri.org Cc: current@freebsd.org Subject: Re: when to use XX_LOCK() ? Message-ID: <200111081539.AAA14862@ns.kobe1995.net> In-Reply-To: Your message of "Mon, 5 Nov 2001 14:26:48 -0800". <20011105142648.E76687@iguana.aciri.org>
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In article <20011105142648.E76687@iguana.aciri.org>
rizzo@aciri.org writes:
>In if_dc.c and other places, i see sequences like this:
>
> dc_intr(arg) {
> struct dc_softc sc;
>
> sc = arg;
> DC_LOCK(sc);
> ifp = &sc->arpcom.ac_if;
> ...
>
>Wondering: any reason to call DC_LOCK before assigning a value to ifp ?
It is a lock for the SMPng, isn't it? I see that 5-current is
removing the giant-lock, replace into small locks.
--
<mailto:kaz@kobe1995.net> NAKAMURA Kazushi@KOBE
<http://kobe1995.net/~kaz/index-e.html>;
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