Re: [patch] CFS scheduler, -v14

[Balbir Singh <balbir@linux.vnet.ibm.com>]

Hi, Ingo,

> +static clock_t task_utime(struct task_struct *p)
> +{
> +	/*
> +	 * Use CFS's precise accounting, if available:
> +	 */
> +	if (!has_rt_policy(p) && !(sysctl_sched_load_smoothing & 128))
> +		return nsec_to_clock_t(p->sum_exec_runtime);


I wonder if this leads to data truncation, p->sum_exec_runtime is
unsigned long long and clock_t is long (on all architectures from what
my cscope shows me). I have my other patch ready on top of this. I'll
post it out soon.

> +
> +	return cputime_to_clock_t(p->utime);
> +}
> +

-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL
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