On Wed, May 19, 2021 at 08:23:21PM +0100, Aaron Tomlin wrote: > +++ b/mm/page_alloc.c > @@ -4252,6 +4252,9 @@ should_compact_retry(struct alloc_context *ac, int order, int alloc_flags, > if (!order) > return false; > > + if (fatal_signal_pending(current)) > + goto out; I think 'goto out' will be confusing. It'll output a tracepoint, which isn't going to record that a fatal signal is pending, so it'll cause some head scratching for someone looking through the traces. I think we should just return false here and skip the tracepoint. But I'd defer to someone like Vlastimil or Michal who know this code far better than I do.