Jeff Moyer <jmo...@redhat.com> writes: >> Hence once the filesystem has waited on the REQ_WRITE|REQ_FLUSH IO >> to complete, we know that all the earlier REQ_WRITE IOs are on >> stable storage, too. Hence there's no need for the elevator to drain >> the queue to guarantee completion ordering - the dispatch ordering >> and flush/fua write semantics guarantee that when the flush/fua >> completes, all the IOs dispatch prior to that flush/fua write are >> also on stable storage... > > Des xfs rely on this model for correctness? If so, I'd say we've got a > problem.
Dave? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
