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Message-Id: <1433771791-30567-25-git-send-email-mgorman@suse.de> Date: Mon, 8 Jun 2015 14:56:30 +0100 From: Mel Gorman <mgorman@...e.de> To: Linux-MM <linux-mm@...ck.org> Cc: Rik van Riel <riel@...hat.com>, Johannes Weiner <hannes@...xchg.org>, Michal Hocko <mhocko@...e.cz>, LKML <linux-kernel@...r.kernel.org>, Mel Gorman <mgorman@...e.de> Subject: [PATCH 24/25] mm, page_alloc: Use ac->classzone_idx instead of zone_idx(preferred_zone) 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@...e.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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