[PATCH] mm, page_alloc: reset the zone->watermark_boost early

[Charan Teja Reddy]

Updating the zone watermarks by any means, like extra_free_kbytes,
min_free_kbytes, water_mark_scale_factor e.t.c, when watermark_boost is
set will result into the higher low and high watermarks than the user
asks. This can be avoided by resetting the zone->watermark_boost to zero
early.

Signed-off-by: Charan Teja Reddy <chara...@codeaurora.org>
---
 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 1b265b09..822e262 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -7746,9 +7746,9 @@ static void __setup_per_zone_wmarks(void)
                            mult_frac(zone_managed_pages(zone),
                                      watermark_scale_factor, 10000));
 
+               zone->watermark_boost = 0;
                zone->_watermark[WMARK_LOW]  = min_wmark_pages(zone) + tmp;
                zone->_watermark[WMARK_HIGH] = min_wmark_pages(zone) + tmp * 2;
-               zone->watermark_boost = 0;
 
                spin_unlock_irqrestore(&zone->lock, flags);
        }
-- 
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