tmpfs: don't undo fallocate past its last page

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / mm / slub.c

diff --git a/mm/slub.c b/mm/slub.c
index c34bd44e8be94764c1143fe9ba6d5313b37d7239..deaed7b4721325a953db68283fe2a230f36a5d49 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4285,7 +4285,13 @@ static ssize_t show_slab_objects(struct kmem_cache *s,
 
                        page = ACCESS_ONCE(c->partial);
                        if (page) {
-                               x = page->pobjects;
+                               node = page_to_nid(page);
+                               if (flags & SO_TOTAL)
+                                       WARN_ON_ONCE(1);
+                               else if (flags & SO_OBJECTS)
+                                       WARN_ON_ONCE(1);
+                               else
+                                       x = page->pages;
                                total += x;
                                nodes[node] += x;
                        }