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Groups > linux.kernel > #1340766
| From | Mel Gorman <mgorman@techsingularity.net> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 21/27] mm, vmscan: Update classzone_idx if buffer_heads_over_limit |
| Date | 2016-02-23 16:20 +0100 |
| Message-ID | <r5mUP-7eb-41@gated-at.bofh.it> (permalink) |
| References | <r5mL7-7at-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
If buffer heads are over the limit then the direct reclaim gfp_mask
is promoted to __GFP_HIGHMEM so that lowmem is indirectly freed. With
node-based reclaim, it is also required that the classzone_idx be updated
or the pages will be skipped.
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
---
mm/vmscan.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index df1c834f3c1e..9f1492b077be 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2574,8 +2574,10 @@ static void shrink_zones(struct zonelist *zonelist, struct scan_control *sc,
* highmem pages could be pinning lowmem pages storing buffer_heads
*/
orig_mask = sc->gfp_mask;
- if (buffer_heads_over_limit)
+ if (buffer_heads_over_limit) {
sc->gfp_mask |= __GFP_HIGHMEM;
+ classzone_idx = gfp_zone(sc->gfp_mask);
+ }
for_each_zone_zonelist_nodemask(zone, z, zonelist,
classzone_idx, sc->nodemask) {
--
2.6.4
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[RFC PATCH 00/27] Move LRU page reclaim from zones to nodes v2 Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:10 +0100
[PATCH 06/27] mm, vmscan: Begin reclaiming pages on a per-node basis Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:10 +0100
Re: [PATCH 06/27] mm, vmscan: Begin reclaiming pages on a per-node basis Johannes Weiner <hannes@cmpxchg.org> - 2016-02-23 20:00 +0100
Re: [PATCH 06/27] mm, vmscan: Begin reclaiming pages on a per-node basis Johannes Weiner <hannes@cmpxchg.org> - 2016-02-23 20:10 +0100
Re: [PATCH 06/27] mm, vmscan: Begin reclaiming pages on a per-node basis Mel Gorman <mgorman@techsingularity.net> - 2016-02-24 11:30 +0100
[PATCH 15/27] mm, workingset: Make working set detection node-aware Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:10 +0100
Re: [PATCH 15/27] mm, workingset: Make working set detection node-aware Johannes Weiner <hannes@cmpxchg.org> - 2016-02-28 17:20 +0100
[PATCH 13/27] mm, vmscan: Make shrink_node decisions more node-centric Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:10 +0100
[PATCH 09/27] mm, vmscan: Simplify the logic deciding whether kswapd sleeps Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:10 +0100
Re: [PATCH 09/27] mm, vmscan: Simplify the logic deciding whether kswapd sleeps Johannes Weiner <hannes@cmpxchg.org> - 2016-02-28 17:20 +0100
[PATCH 10/27] mm, vmscan: By default have direct reclaim only shrink once per node Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:10 +0100
Re: [PATCH 10/27] mm, vmscan: By default have direct reclaim only shrink once per node Johannes Weiner <hannes@cmpxchg.org> - 2016-02-28 17:20 +0100
[PATCH 12/27] mm: vmscan: Do not reclaim from kswapd if there is any eligible zone Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:10 +0100
[PATCH 07/27] mm, vmscan: Have kswapd only scan based on the highest requested zone Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:20 +0100
Re: [PATCH 07/27] mm, vmscan: Have kswapd only scan based on the highest requested zone Johannes Weiner <hannes@cmpxchg.org> - 2016-02-25 23:20 +0100
[PATCH 19/27] mm: Move most file-based accounting to the node Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:20 +0100
[PATCH 18/27] mm: Rename NR_ANON_PAGES to NR_ANON_MAPPED Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:20 +0100
[PATCH 01/27] mm, page_alloc: Use ac->classzone_idx instead of zone_idx(preferred_zone) Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:20 +0100
Re: [PATCH 01/27] mm, page_alloc: Use ac->classzone_idx instead of zone_idx(preferred_zone) Johannes Weiner <hannes@cmpxchg.org> - 2016-02-23 19:10 +0100
Re: [PATCH 01/27] mm, page_alloc: Use ac->classzone_idx instead of zone_idx(preferred_zone) Vlastimil Babka <vbabka@suse.cz> - 2016-03-03 11:40 +0100
[PATCH 04/27] mm, vmscan: Move lru_lock to the node Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:20 +0100
Re: [PATCH 04/27] mm, vmscan: Move lru_lock to the node Johannes Weiner <hannes@cmpxchg.org> - 2016-02-23 19:50 +0100
[PATCH 17/27] mm: Move page mapped accounting to the node Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:20 +0100
[PATCH 03/27] mm, vmstat: Add infrastructure for per-node vmstats Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:20 +0100
Re: [PATCH 03/27] mm, vmstat: Add infrastructure for per-node vmstats Johannes Weiner <hannes@cmpxchg.org> - 2016-02-23 19:20 +0100
Re: [PATCH 03/27] mm, vmstat: Add infrastructure for per-node vmstats Mel Gorman <mgorman@techsingularity.net> - 2016-02-24 10:20 +0100
[PATCH 21/27] mm, vmscan: Update classzone_idx if buffer_heads_over_limit Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:20 +0100
[PATCH 11/27] mm, vmscan: Clear congestion, dirty and need for compaction on a per-node basis Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:20 +0100
[PATCH 16/27] mm, page_alloc: Consider dirtyable memory in terms of nodes Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:20 +0100
Re: [PATCH 16/27] mm, page_alloc: Consider dirtyable memory in terms of nodes Johannes Weiner <hannes@cmpxchg.org> - 2016-02-28 17:20 +0100
[PATCH 20/27] mm: Move vmscan writes and file write accounting to the node Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:20 +0100
[PATCH 02/27] mm, vmscan: Check if cpusets are enabled during direct reclaim Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:20 +0100
Re: [PATCH 02/27] mm, vmscan: Check if cpusets are enabled during direct reclaim Johannes Weiner <hannes@cmpxchg.org> - 2016-02-23 19:10 +0100
Re: [PATCH 02/27] mm, vmscan: Check if cpusets are enabled during direct reclaim Vlastimil Babka <vbabka@suse.cz> - 2016-03-03 12:40 +0100
[PATCH 27/27] mm: page_alloc: Cache the last node whose dirty limit is reached Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:30 +0100
[PATCH 25/27] mm, vmscan: Add classzone information to tracepoints Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:30 +0100
[PATCH 23/27] mm, vmscan: Account in vmstat for pages skipped during reclaim Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:30 +0100
[PATCH 22/27] mm, vmscan: Only wakeup kswapd once per node for the requested classzone Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:30 +0100
[PATCH 24/27] mm: Convert zone_reclaim to node_reclaim Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:30 +0100
[PATCH 26/27] mm, page_alloc: Remove fair zone allocation policy Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 16:30 +0100
Re: [RFC PATCH 00/27] Move LRU page reclaim from zones to nodes v2 Christoph Lameter <cl@linux.com> - 2016-02-23 18:20 +0100
Re: [PATCH 05/27] mm, vmscan: Move LRU lists to node Johannes Weiner <hannes@cmpxchg.org> - 2016-02-23 19:50 +0100
Re: [RFC PATCH 00/27] Move LRU page reclaim from zones to nodes v2 Johannes Weiner <hannes@cmpxchg.org> - 2016-02-23 21:10 +0100
Re: [RFC PATCH 00/27] Move LRU page reclaim from zones to nodes v2 Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 21:20 +0100
Re: [RFC PATCH 00/27] Move LRU page reclaim from zones to nodes v2 Johannes Weiner <hannes@cmpxchg.org> - 2016-02-23 22:00 +0100
Re: [RFC PATCH 00/27] Move LRU page reclaim from zones to nodes v2 Mel Gorman <mgorman@techsingularity.net> - 2016-02-23 23:00 +0100
Re: [RFC PATCH 00/27] Move LRU page reclaim from zones to nodes v2 Johannes Weiner <hannes@cmpxchg.org> - 2016-02-24 01:20 +0100
Re: [RFC PATCH 00/27] Move LRU page reclaim from zones to nodes v2 Mel Gorman <mgorman@techsingularity.net> - 2016-02-24 11:50 +0100
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