On Sat, Oct 29, 2016 at 04:08:45PM +0800, Ming Lei wrote: > In bio_check_pages_dirty(), bvec->bv_page is used as flag > for marking if the page has been dirtied & released, and if > no, it will be dirtied in deferred workqueue. > > With multipage bvec, we can't do that any more, so change > the logic into checking all pages in one mp bvec, and only > release all these pages if all are dirtied, otherwise dirty > them all in deferred wrokqueue. Just defer the whole bio to the workqueue if we need to redirty any, that avoids having all these complex iteratations. -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
