On Fri, 01 Apr 2011 14:13:12 +0200 Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> wrote: > Hugh says: > "The only significant loser, I think, would be page reclaim (when > concurrent with truncation): could spin for a long time waiting for > the i_mmap_mutex it expects would soon be dropped? " > > Counter points: > - cpu contention makes the spin stop (need_resched()) > - zap pages should be freeing pages at a higher rate than reclaim > ever can > > I think the simplification of the truncate code is definately worth it. Well, we don't need to guess. These things are testable! -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
