[PATCH 10/17] mm: page_alloc: Lookup pageblock migratetype with IRQs enabled during free

[Mel Gorman]

get_pageblock_migratetype() is called during free with IRQs disabled. This
is unnecessary and disables IRQs for longer than necessary.

Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
---
 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 61d45fd..2e55bc8 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -773,9 +773,9 @@ static void __free_pages_ok(struct page *page, unsigned int order)
 	if (!free_pages_prepare(page, order))
 		return;
 
+	migratetype = get_pfnblock_migratetype(page, pfn);
 	local_irq_save(flags);
 	__count_vm_events(PGFREE, 1 << order);
-	migratetype = get_pfnblock_migratetype(page, pfn);
 	set_freepage_migratetype(page, migratetype);
 	free_one_page(page_zone(page), page, pfn, order, migratetype);
 	local_irq_restore(flags);
-- 
1.8.4.5

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