diff --git a/fs/proc/page.c b/fs/proc/page.c
index 3b8b456603318f1ff017056cdeda40129d559ab4..b06c674624e6af3691cbe00d51c7b1a2b5aa7a8a 100644
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -40,7 +40,7 @@ static ssize_t kpagecount_read(struct file *file, char __user *buf,
 			ppage = pfn_to_page(pfn);
 		else
 			ppage = NULL;
-		if (!ppage)
+		if (!ppage || PageSlab(ppage))
 			pcount = 0;
 		else
 			pcount = page_mapcount(ppage);