X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=mm%2Fvmstat.c;h=cb2a67bb41581de147427e2289190beea33f69da;hb=f3683ccd12ac625cee12650ca8595c7b9cb16d77;hp=77e42ef388c2a832169d4bcace8a505c45d95516;hpb=559b6d90a0beb375c46dffe18133012bfa29f441;p=deliverable%2Flinux.git

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 77e42ef388c2..cb2a67bb4158 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1061,6 +1061,8 @@ static void pagetypeinfo_showmixedcount_print(struct seq_file *m,
 				continue;
 
 			page_ext = lookup_page_ext(page);
+			if (unlikely(!page_ext))
+				continue;
 
 			if (!test_bit(PAGE_EXT_OWNER, &page_ext->flags))
 				continue;