mm: compaction: fix return value of capture_free_page()
Commit ef6c5be658f6 ("fix incorrect NR_FREE_PAGES accounting (appears
like memory leak)") fixes a NR_FREE_PAGE accounting leak but missed the
return value which was also missed by this reviewer until today.
That return value is used by compaction when adding pages to a list of
isolated free pages and without this follow-up fix, there is a risk of
free list corruption.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 9287157..7e208f0 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1422,7 +1422,7 @@
}
}
- return 1UL << order;
+ return 1UL << alloc_order;
}
/*