On Wed, 11 Jul 2012 18:57:43 -0700 (PDT) Hugh Dickins <hu...@google.com> wrote:
> --- 3.5-rc6-mm1/mm/vmscan.c 2012-07-11 14:42:13.668335884 -0700 > +++ linux/mm/vmscan.c 2012-07-11 16:01:20.712814127 -0700 > @@ -726,7 +726,8 @@ static unsigned long shrink_page_list(st > * writeback from reclaim and there is nothing else to > * reclaim. > */ > - if (!global_reclaim(sc) && PageReclaim(page)) > + if (!global_reclaim(sc) && PageReclaim(page) && > + may_enter_fs) > wait_on_page_writeback(page); > else { > nr_writeback++; um, that may_enter_fs test got removed because nobody knew why it was there. Nobody knew why it was there because it was undocumented. Do you see where I'm going with this? -- 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/