From: Mel Gorman <mgorman@techsingularity.net>
To: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Minchan Kim <minchan@kernel.org>, Michal Hocko <mhocko@suse.cz>,
Vlastimil Babka <vbabka@suse.cz>, Linux-MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 5/5] mm: consider per-zone inactive ratio to deactivate
Date: Thu, 21 Jul 2016 09:16:11 +0100 [thread overview]
Message-ID: <20160721081611.GG10438@techsingularity.net> (raw)
In-Reply-To: <20160721071050.GB27554@js1304-P5Q-DELUXE>
On Thu, Jul 21, 2016 at 04:10:50PM +0900, Joonsoo Kim wrote:
> > @@ -1993,6 +1994,32 @@ static bool inactive_list_is_low(struct lruvec *lruvec, bool file)
> > inactive = lruvec_lru_size(lruvec, file * LRU_FILE);
> > active = lruvec_lru_size(lruvec, file * LRU_FILE + LRU_ACTIVE);
> >
> > + /*
> > + * For global reclaim on zone-constrained allocations, it is necessary
> > + * to check if rotations are required for lowmem to be reclaimed. This
> > + * calculates the inactive/active pages available in eligible zones.
> > + */
> > + if (global_reclaim(sc)) {
> > + struct pglist_data *pgdat = lruvec_pgdat(lruvec);
> > + int zid;
> > +
> > + for (zid = sc->reclaim_idx; zid < MAX_NR_ZONES; zid++) {
>
> Should be changed to "zid = sc->reclaim_idx + 1"
>
You're right, well spotted!
--
Mel Gorman
SUSE Labs
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next prev parent reply other threads:[~2016-07-21 8:16 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-20 15:21 [PATCH 0/5] Candidate fixes for premature OOM kills with node-lru v1 Mel Gorman
2016-07-20 15:21 ` [PATCH 1/5] mm, vmscan: Do not account skipped pages as scanned Mel Gorman
2016-07-21 5:16 ` Minchan Kim
2016-07-21 8:15 ` Mel Gorman
2016-07-21 8:31 ` Minchan Kim
2016-07-25 8:04 ` Minchan Kim
2016-07-25 9:20 ` Mel Gorman
2016-07-28 1:38 ` Minchan Kim
2016-07-20 15:21 ` [PATCH 2/5] mm: add per-zone lru list stat Mel Gorman
2016-07-21 7:10 ` Joonsoo Kim
2016-07-23 0:45 ` Fengguang Wu
2016-07-23 1:25 ` Minchan Kim
2016-07-20 15:21 ` [PATCH 3/5] mm, vmscan: Remove highmem_file_pages Mel Gorman
2016-07-20 15:21 ` [PATCH 4/5] mm: Remove reclaim and compaction retry approximations Mel Gorman
2016-07-20 15:21 ` [PATCH 5/5] mm: consider per-zone inactive ratio to deactivate Mel Gorman
2016-07-21 5:30 ` Minchan Kim
2016-07-21 8:08 ` Mel Gorman
2016-07-21 7:10 ` Joonsoo Kim
2016-07-21 8:16 ` Mel Gorman [this message]
2016-07-21 7:07 ` [PATCH 0/5] Candidate fixes for premature OOM kills with node-lru v1 Minchan Kim
2016-07-21 9:15 ` Mel Gorman
2016-07-21 7:31 ` Joonsoo Kim
2016-07-21 8:39 ` Minchan Kim
2016-07-21 9:16 ` Mel Gorman
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