> -----Original Message----- > From: Minchan Kim [mailto:minc...@kernel.org] > Sent: Monday, June 23, 2014 2:16 AM > To: Johannes Weiner > Cc: Andrew Morton; Mel Gorman; Rik van Riel; Michal Hocko; > linux...@kvack.org; linux-kernel@vger.kernel.org; Motohiro Kosaki JP > Subject: Re: [patch 1/4] mm: vmscan: remove remains of kswapd-managed > zone->all_unreclaimable > > On Fri, Jun 20, 2014 at 12:33:47PM -0400, Johannes Weiner wrote: > > shrink_zones() has a special branch to skip the all_unreclaimable() > > check during hibernation, because a frozen kswapd can't mark a zone > > unreclaimable. > > > > But ever since 6e543d5780e3 ("mm: vmscan: fix do_try_to_free_pages() > > livelock"), determining a zone to be unreclaimable is done by directly > > looking at its scan history and no longer relies on kswapd setting the > > per-zone flag. > > > > Remove this branch and let shrink_zones() check the reclaimability of > > the target zones regardless of hibernation state. > > > > Signed-off-by: Johannes Weiner <han...@cmpxchg.org> > Acked-by: Minchan Kim <minc...@kernel.org> > > It would be not bad to Cced KOSAKI who was involved all_unreclaimable series > several time with me.
Looks good to me. KOSAKI Motohiro <kosaki.motoh...@jp.fujitsu.com>
