Re: [PATCH] fix nanosleep() granularity bumps

[george anzinger <george@mvista.com>]

Andrew Morton wrote:
> george anzinger <george@mvista.com> wrote:
> 
>>The attached patch is for 2.5.65.  As of this moment, the bk patch has 
>>not been posted to the snapshots directory.  I will wait for that to 
>>update.
> 
> 
> Don't use the snapshots directory.  Use
> 
> 	http://www.kernel.org/pub/linux/kernel/v2.5/testing/cset/

but then I need to pull each patch ... :)

-g
> 
> It is more up to date.
> 
> 
>>For what its worth, can someone explain how the add_timer call from 
>>run_timers was causing a problem.  The code looks right to me, unless 
>>the caller is so nasty as to continue to do the same thing (which 
>>would loop forever).
> 
> 
> That was the problem.
> 
> 
>>In this case, the simple fix is to bump the 
>>base->timer_jiffies at the beginning of the loop rather than the end. 
>>   This would cause the new timer to be put in the next jiffie instead 
>>of the current one AND it is free!
> 
> 
> Didn't think of that - I just ported up Andrea's fix.
> 
> 
> 

-- 
George Anzinger   george@mvista.com
High-res-timers:  http://sourceforge.net/projects/high-res-timers/
Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml