From: Jeff Garzik <jgarzik@mandrakesoft.com>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: jiffies wrap question...
Date: Fri, 10 Nov 2000 02:21:28 -0500 [thread overview]
Message-ID: <3A0BA1F8.E3ABCD18@mandrakesoft.com> (raw)
The following is a piece of code from the latter half of
schedule_timeout, in kernel/sched.c. Is it possible that
schedule_timeout could return an incorrect value, if the jiffy value
wraps between the first and last lines shown below.
expire = timeout + jiffies;
init_timer(&timer);
timer.expires = expire;
timer.data = (unsigned long) current;
timer.function = process_timeout;
add_timer(&timer);
schedule();
del_timer_sync(&timer);
timeout = expire - jiffies;
--
Jeff Garzik |
Building 1024 | Would you like a Twinkie?
MandrakeSoft |
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next reply other threads:[~2000-11-10 7:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-11-10 7:21 Jeff Garzik [this message]
2000-11-10 7:35 ` Philipp Rumpf
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