[merged] mm-vmscan-evaluate-the-watermarks-against-the-correct-classzone.patch removed from -mm tree

[merged] mm-vmscan-evaluate-the-watermarks-against-the-correct-classzone.patch removed from -mm tree

[akpm]

The patch titled
     mm: vmscan: evaluate the watermarks against the correct classzone
has been removed from the -mm tree.  Its filename was
     mm-vmscan-evaluate-the-watermarks-against-the-correct-classzone.patch

This patch was dropped because it was merged into mainline or a subsystem tree

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: mm: vmscan: evaluate the watermarks against the correct classzone
From: Mel Gorman <mgorman@suse.de>

When deciding if kswapd is sleeping prematurely, the classzone is taken
into account but this is different to what balance_pgdat() and the
allocator are doing.  Specifically, the DMA zone will be checked based on
the classzone used when waking kswapd which could be for a GFP_KERNEL or
GFP_HIGHMEM request.  The lowmem reserve limit kicks in, the watermark is
not met and kswapd thinks it's sleeping prematurely keeping kswapd awake in
error.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reported-by: Pádraig Brady <P@draigBrady.com>
Tested-by: Pádraig Brady <P@draigBrady.com>
Tested-by: Andrew Lutomirski <luto@mit.edu>
Acked-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/vmscan.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN mm/vmscan.c~mm-vmscan-evaluate-the-watermarks-against-the-correct-classzone mm/vmscan.c
--- a/mm/vmscan.c~mm-vmscan-evaluate-the-watermarks-against-the-correct-classzone
+++ a/mm/vmscan.c
@@ -2344,7 +2344,7 @@ static bool sleeping_prematurely(pg_data
 		}
 
 		if (!zone_watermark_ok_safe(zone, order, high_wmark_pages(zone),
-							classzone_idx, 0))
+							i, 0))
 			all_zones_ok = false;
 		else
 			balanced += zone->present_pages;
_

Patches currently in -mm which might be from mgorman@suse.de are

origin.patch

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