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authorHugh Dickins <hughd@google.com>2012-03-23 10:57:31 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-23 16:34:40 +0100
commit643ac9fc5429e85b8b7f534544b80bcc4f34c367 (patch)
treef6db7d7e8a08761119d478ef7adf5bef4402f786 /mm
parentMerge tag 'fbdev-updates-for-3.4' of git://github.com/schandinat/linux-2.6 (diff)
downloadlinux-643ac9fc5429e85b8b7f534544b80bcc4f34c367.tar.xz
linux-643ac9fc5429e85b8b7f534544b80bcc4f34c367.zip
mm: fix testorder interaction between two kswapd patches
Adjusting cc715d99e529 "mm: vmscan: forcibly scan highmem if there are too many buffer_heads pinning highmem" for -stable reveals that it was slightly wrong once on top of fe2c2a106663 "vmscan: reclaim at order 0 when compaction is enabled", which specifically adds testorder for the zone_watermark_ok_safe() test. Signed-off-by: Hugh Dickins <hughd@google.com> Acked-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Rik van Riel <riel@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/vmscan.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 49f15ef0a99a..7658fd6536dd 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2817,7 +2817,7 @@ loop_again:
testorder = 0;
if ((buffer_heads_over_limit && is_highmem_idx(i)) ||
- !zone_watermark_ok_safe(zone, order,
+ !zone_watermark_ok_safe(zone, testorder,
high_wmark_pages(zone) + balance_gap,
end_zone, 0)) {
shrink_zone(priority, zone, &sc);