diff --git a/[refs] b/[refs]
index 675e88f0e444..3ca47d8fe936 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: df69a60dc6afc2936d79054d30b481c1fd9720e5
+refs/heads/master: 5bd0190bf3d7e53043a048e809ffa29d41b9d6ac
diff --git a/trunk/kernel/ptrace.c b/trunk/kernel/ptrace.c
index 17ee7e5a3451..656476eedb1b 100644
--- a/trunk/kernel/ptrace.c
+++ b/trunk/kernel/ptrace.c
@@ -241,7 +241,8 @@ int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, in
 		if (write) {
 			copy_to_user_page(vma, page, addr,
 					  maddr + offset, buf, bytes);
-			set_page_dirty_lock(page);
+			if (!PageCompound(page))
+				set_page_dirty_lock(page);
 		} else {
 			copy_from_user_page(vma, page, addr,
 					    buf, maddr + offset, bytes);