Messages in this thread |  | | Date | Tue, 25 Feb 2014 12:47:01 +0800 | From | Michael wang <> | Subject | Re: sched: hang in migrate_swap |
| |
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
> -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
|  |