Date: Tue, 21 Mar 2000 07:46:57 +0100 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Wes Peters <wes@softweyr.com> Cc: Warner Losh <imp@village.org>, hackers@FreeBSD.ORG Subject: Re: splFoo() question Message-ID: <23423.953621217@critter.freebsd.dk> In-Reply-To: Your message of "Mon, 20 Mar 2000 16:25:07 MST." <38D6B353.FA58BB15@softweyr.com>
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In message <38D6B353.FA58BB15@softweyr.com>, Wes Peters writes: >Poul-Henning Kamp wrote: >> >> In message <200003182031.NAA97975@harmony.village.org>, Warner Losh writes: >> >> >I'd like to be able to do some simple spl locking in a driver that I'm >> >writing. While I could go the splhigh() route, I'm concerned that >> >spending lots of time at splhigh could cause problems, and some of my >> >critical sections look to be very expensive. They only need >> >protection against the card itself, not against the entire system. It >> >just seems to be an overly large hammer. >> >> I miss this too. > >Semaphores? spl*() are semaphores. -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." FreeBSD -- It will take a long time before progress goes too far! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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