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Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index d9fbac1b5030..265fea4fbc81 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1394,21 +1394,22 @@ int capture_free_page(struct page *page, int alloc_order, int migratetype)
zone = page_zone(page);
order = page_order(page);
+ mt = get_pageblock_migratetype(page);
- /* Obey watermarks as if the page was being allocated */
- watermark = low_wmark_pages(zone) + (1 << order);
- if (!zone_watermark_ok(zone, 0, watermark, 0, 0))
- return 0;
+ if (mt != MIGRATE_ISOLATE) {
+ /* Obey watermarks as if the page was being allocated */
+ watermark = low_wmark_pages(zone) + (1 << order);
+ if (!zone_watermark_ok(zone, 0, watermark, 0, 0))
+ return 0;
+
+ __mod_zone_freepage_state(zone, -(1UL << alloc_order), mt);
+ }
/* Remove page from free list */
list_del(&page->lru);
zone->free_area[order].nr_free--;
rmv_page_order(page);
- mt = get_pageblock_migratetype(page);
- if (unlikely(mt != MIGRATE_ISOLATE))
- __mod_zone_freepage_state(zone, -(1UL << alloc_order), mt);
-
if (alloc_order != order)
expand(zone, page, alloc_order, order,
&zone->free_area[order], migratetype);