Tetsuo reports that free page statistics are not reporting correctly, and Vlastimil noticed that "mm: Move buddy list manipulations into helpers" botched one of its conversions of add_to_free_area(). Fix the double-increment of ->nr_free.
Reported-by: Tetsuo Handa <[email protected]> Reported-by: Vlastimil Babka <[email protected]> Cc: Michal Hocko <[email protected]> Tested-by: Tetsuo Handa <[email protected]> Signed-off-by: Dan Williams <[email protected]> --- Hi Andrew, Please fold this into mm-move-buddy-list-manipulations-into-helpers.patch. mm/page_alloc.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 2a0969e3b0eb..da537fc39c54 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1851,7 +1851,6 @@ static inline void expand(struct zone *zone, struct page *page, continue; add_to_free_area(&page[size], area, migratetype); - area->nr_free++; set_page_order(&page[size], high); } }
