core, x86: Add user return notifiers

[safe/jmp/linux-2.6] / arch / x86 / kernel / signal.c

diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 6a44a76..c49f90f 100644 (file)
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -19,6 +19,7 @@
 #include <linux/stddef.h>
 #include <linux/personality.h>
 #include <linux/uaccess.h>
+#include <linux/user-return-notifier.h>
 
 #include <asm/processor.h>
 #include <asm/ucontext.h>
@@ -872,6 +873,8 @@ do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
                if (current->replacement_session_keyring)
                        key_replace_session_keyring();
        }
+       if (thread_info_flags & _TIF_USER_RETURN_NOTIFY)
+               fire_user_return_notifiers();
 
 #ifdef CONFIG_X86_32
        clear_thread_flag(TIF_IRET);