[PATCH v4 04/17] sched_clock: Add support for >32 bit sched_clock

Stephen Boyd sboyd at codeaurora.org
Fri Jul 19 12:29:39 EDT 2013


On 07/19, Baruch Siach wrote:
> On Thu, Jul 18, 2013 at 04:21:17PM -0700, Stephen Boyd wrote:
> > @@ -110,14 +123,13 @@ void __init setup_sched_clock(u32 (*read)(void), int
> >   bits, unsigned long rate)
> >  	if (cd.rate > rate)
> >  		return;
> >  
> > -	BUG_ON(bits > 32);
> >  	WARN_ON(!irqs_disabled());
> >  	read_sched_clock = read;
> > -	sched_clock_mask = (1 << bits) - 1;
> > +	sched_clock_mask = CLOCKSOURCE_MASK(bits);
> 
> Note that this conflicts with my integer overflow fix 
> (http://article.gmane.org/gmane.linux.ports.arm.kernel/252498) that I hope 
> will get merged before 3.11 is out.
> 

Thanks for the heads up. The conflict looks minor and I'll rebase
if necessary.

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