Re: sched: hang in migrate_swap

[Peter Zijlstra]

On Mon, Feb 24, 2014 at 01:12:18PM +0100, Peter Zijlstra wrote:
> +		if (p) {
> +			if (unlikely(p == RETRY_TASK))
> +				goto again;

We could even make that: unlikely(p & 1), I think most CPUs can encode
that far better than the full pointer immediate.
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