The patch titled
Subject: mm: vmpressure: fix scan window after SWAP_CLUSTER_MAX increase
has been added to the -mm tree. Its filename is
mm-increase-swap_cluster_max-to-batch-tlb-flushes-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-increase-swap_cluster_max-to-batch-tlb-flushes-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-increase-swap_cluster_max-to-batch-tlb-flushes-fix.patch
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------------------------------------------------------
From: Johannes Weiner <hannes@xxxxxxxxxxx>
Subject: mm: vmpressure: fix scan window after SWAP_CLUSTER_MAX increase
mm-increase-swap_cluster_max-to-batch-tlb-flushes.patch changed
SWAP_CLUSTER_MAX from 32 pages to 256 pages, inadvertantly switching the
scan window for vmpressure detection from 2MB to 16MB. Fix.
Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmpressure.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/vmpressure.c~mm-increase-swap_cluster_max-to-batch-tlb-flushes-fix mm/vmpressure.c
--- a/mm/vmpressure.c~mm-increase-swap_cluster_max-to-batch-tlb-flushes-fix
+++ a/mm/vmpressure.c
@@ -38,7 +38,7 @@
* TODO: Make the window size depend on machine size, as we do for vmstat
* thresholds. Currently we set it to 512 pages (2MB for 4KB pages).
*/
-static const unsigned long vmpressure_win = SWAP_CLUSTER_MAX * 16;
+static const unsigned long vmpressure_win = SWAP_CLUSTER_MAX;
/*
* These thresholds are used when we account memory pressure through
_
Patches currently in -mm which might be from hannes@xxxxxxxxxxx are
mm-increase-swap_cluster_max-to-batch-tlb-flushes-fix.patch
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