Date: Wed, 10 Sep 2008 16:08:03 -0700 (PDT) From: Fritz Katz <frtzkatz@yahoo.com> To: freebsd-multimedia@freebsd.org Subject: Re: devel/linux-kmod-compat bit me Message-ID: <174935.28912.qm@web63008.mail.re1.yahoo.com> In-Reply-To: <20080909120017.092361065701@hub.freebsd.org>
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I've often wondered about the differences between the Linux msleep and FreeBSD msleep -- I've actually lost some sleep thinking about it. They appear to be the same in name only. Am I confused here? If so, jump in and correct me.
The Linux msleep simply goes into a while spin-loop counting down a timeout on schedule_timeout_uninterruptible( ). It seems to be a closer match to the Standard C library call: usleep.
The FreeBSD msleep seems to be a different beast entirely. A better name would be 'mutex_sleep' since that is what it does. In fact, we shouldn't use FreeBSD msleep since it has been depreciated, use mtx_sleep instead.
For linux_kmod_compat would a better match to the Linux msleep be the FreeBSD kernel function pause?:
void pause(const char *wmesg, int timo);
or is there something better for use in the kernel, drivers, and KLDs?
Cheers,
-- Fritz Katz.
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