Re: sched: hang in migrate_swap

[Michael wang]

On 02/24/2014 09:10 PM, Peter Zijlstra wrote:
> 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.

Agree, unless odd-align stuff appeared...

Regards,
Michael Wang

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