Properly take into account if we isolated a compound page during the
lumpy scan in reclaim and break the loop if we've isolated enough.
Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
---
mm/vmscan.c | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index a1893c0..3421746 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1183,13 +1183,16 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
break;
if (__isolate_lru_page(cursor_page, mode, file) == 0) {
+ unsigned int isolated_pages;
list_move(&cursor_page->lru, dst);
mem_cgroup_del_lru(cursor_page);
- nr_taken += hpage_nr_pages(page);
- nr_lumpy_taken++;
+ isolated_pages = hpage_nr_pages(page);
+ nr_taken += isolated_pages;
+ nr_lumpy_taken += isolated_pages;
if (PageDirty(cursor_page))
- nr_lumpy_dirty++;
+ nr_lumpy_dirty += isolated_pages;
scan++;
+ pfn += isolated_pages-1;
} else {
/*
* Check if the page is freed already.
--
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