tree fc5abaa84eb1135cae41e8ab0d3356171fc0a760
parent 1cee22b7f385b6c4f716846203a96e1f302132aa
author Mandeep Singh Baines <msb@chromium.org> 1323383684 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1323445829 -0800

sys_getppid: add missing rcu_dereference

In order to safely dereference current->real_parent inside an
rcu_read_lock, we need an rcu_dereference.

Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>