On 10/10/2017 08:53 AM, weiping zhang wrote: > check pol->cpd_free_fn() instead of pol->cpd_alloc_fn() when free cpd. In practice this shouldn't make a difference, since if you have an alloc_fn, you better also have a free_fn. I'd argue a better patch would be ensuring that's the case, since the current situation would at least oops and show you there's an issue, but with the patch we'll just leak the memory. I'll apply it, but would be nice if this was handled a bit more proactively. -- Jens Axboe