From: Mel Gorman <mgorman@suse.de>
To: Linux-MM <linux-mm@kvack.org>
Cc: Rik van Riel <riel@redhat.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@suse.cz>,
LKML <linux-kernel@vger.kernel.org>, Mel Gorman <mgorman@suse.de>
Subject: [PATCH 24/25] mm, page_alloc: Use ac->classzone_idx instead of zone_idx(preferred_zone)
Date: Mon, 8 Jun 2015 14:56:30 +0100 [thread overview]
Message-ID: <1433771791-30567-25-git-send-email-mgorman@suse.de> (raw)
In-Reply-To: <1433771791-30567-1-git-send-email-mgorman@suse.de>
ac->classzone_idx is determined by the index of the preferred zone and cached
to avoid repeated calculations. wake_all_kswapds() should use it instead of
using zone_idx() within a loop.
Signed-off-by: Mel Gorman <mgorman@suse.de>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 4108743eb801..886102cc9b09 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2307,7 +2307,7 @@ static void wake_all_kswapds(unsigned int order, const struct alloc_context *ac)
for_each_zone_zonelist_nodemask(zone, z, ac->zonelist,
ac->high_zoneidx, ac->nodemask)
- wakeup_kswapd(zone, order, zone_idx(ac->preferred_zone));
+ wakeup_kswapd(zone, order, ac->classzone_idx);
}
static inline int
--
2.3.5
--
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next prev parent reply other threads:[~2015-06-08 13:57 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-08 13:56 [RFC PATCH 00/25] Move LRU page reclaim from zones to nodes Mel Gorman
2015-06-08 13:56 ` [PATCH 01/25] mm, vmstat: Add infrastructure for per-node vmstats Mel Gorman
2015-06-08 13:56 ` [PATCH 02/25] mm, vmscan: Move lru_lock to the node Mel Gorman
2015-06-08 13:56 ` [PATCH 03/25] mm, vmscan: Move LRU lists to node Mel Gorman
2015-06-08 13:56 ` [PATCH 04/25] mm, vmscan: Begin reclaiming pages on a per-node basis Mel Gorman
2015-06-08 13:56 ` [PATCH 05/25] mm, vmscan: Have kswapd only scan based on the highest requested zone Mel Gorman
2015-06-08 13:56 ` [PATCH 06/25] mm, vmscan: Avoid a second search through zones checking if compaction is required Mel Gorman
2015-06-08 13:56 ` [PATCH 07/25] mm, vmscan: Make kswapd think of reclaim in terms of nodes Mel Gorman
2015-06-08 13:56 ` [PATCH 08/25] mm, vmscan: By default have direct reclaim only shrink once per node Mel Gorman
2015-06-08 13:56 ` [PATCH 09/25] mm, vmscan: Clear congestion, dirty and need for compaction on a per-node basis Mel Gorman
2015-06-08 13:56 ` [PATCH 10/25] mm, vmscan: Make shrink_node decisions more node-centric Mel Gorman
2015-06-08 13:56 ` [PATCH 11/25] mm, workingset: Make working set detection node-aware Mel Gorman
2015-06-08 13:56 ` [PATCH 12/25] mm, page_alloc: Consider dirtyable memory in terms of nodes Mel Gorman
2015-06-08 13:56 ` [PATCH 13/25] mm: Move NR_FILE_MAPPED accounting to the node Mel Gorman
2015-06-08 13:56 ` [PATCH 14/25] mm: Rename NR_ANON_PAGES to NR_ANON_MAPPED Mel Gorman
2015-06-08 13:56 ` [PATCH 15/25] mm: Move most file-based accounting to the node Mel Gorman
2015-06-08 13:56 ` [PATCH 16/25] mm, vmscan: Update classzone_idx if buffer_heads_over_limit Mel Gorman
2015-06-08 13:56 ` [PATCH 17/25] mm, vmscan: Check if cpusets are enabled during direct reclaim Mel Gorman
2015-06-08 13:56 ` [PATCH 18/25] mm, vmscan: Only wakeup kswapd once per node for the requested classzone Mel Gorman
2015-06-08 13:56 ` [PATCH 19/25] mm, vmscan: Account in vmstat for pages skipped during reclaim Mel Gorman
2015-06-08 13:56 ` [PATCH 20/25] mm, page_alloc: Remove fair zone allocation policy Mel Gorman
2015-06-08 13:56 ` [PATCH 21/25] mm, page_alloc: Defer zlc_setup until it is known it is required Mel Gorman
2015-06-08 13:56 ` [PATCH 22/25] mm: Convert zone_reclaim to node_reclaim Mel Gorman
2015-06-08 13:56 ` [PATCH 23/25] mm, page_alloc: Delete the zonelist_cache Mel Gorman
2015-06-08 13:56 ` Mel Gorman [this message]
2015-06-08 13:56 ` [PATCH 25/25] mm: page_alloc: Take fewer passes when allocating to the low watermark Mel Gorman
2015-06-19 17:01 ` [RFC PATCH 00/25] Move LRU page reclaim from zones to nodes Johannes Weiner
2015-06-21 14:04 ` Mel Gorman
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