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Re: How do I make a kernel module "sleep" without affecting other kernel modules?

On Wed, 1 Dec 2004 09:36:50 -0500, Prokopenko, Konstantyn
<kproko@xxxxxxxxxxxx> wrote:
> Yes, you can use schedule_timeout() if you don't need to wait on a condition
> to change before timeout expires.
> Now, I've got news....
> Schedule_timeout() internally calls kernel timer functions (init, add,
> del_sync). Value "expire" for timer is calculated as
> jiffies+requested_ticks. No check is done for wraps unless it is done within
> timer functions that I really doubt. So either way we are not
> protected :)...
> 
> Konstantyn
> 

Guys, *all* of you at kernelnewbies have my heartfelt thanks :-) I've
learned more by reading kernelnewbies email in the last week than I
have by poring through books. Many, many, many Thanks :-).

Konstantyn, I just looked at the source code for schedule_timeout()
for the 2.6.8.1 Kernel at
http://lxr.linux.no/source/kernel/timer.c?v=2.6.8.1#L1103, and you're
right, there isn't a check for (jiffies + timeout) being wrapped
around.

Thanks again!

Karthik.

-- 
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