futex: Move exit_pi_state() call to release_mm()

exit_pi_state() is called from do_exit() but not from do_execve().
Move it to release_mm() so it gets called from do_execve() as well.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <new-submission>
Cc: stable@kernel.org
Cc: Anirban Sinha <ani@anirban.org>
Cc: Peter Zijlstra <peterz@infradead.org>

diff --git a/kernel/exit.c b/kernel/exit.c
index ae5d866..bc2b1fd 100644 (file)
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -989,8 +989,6 @@ NORET_TYPE void do_exit(long code)
        tsk->mempolicy = NULL;
 #endif
 #ifdef CONFIG_FUTEX
-       if (unlikely(!list_empty(&tsk->pi_state_list)))
-               exit_pi_state_list(tsk);
        if (unlikely(current->pi_state_cache))
                kfree(current->pi_state_cache);
 #endif

diff --git a/kernel/fork.c b/kernel/fork.c
index 88ef51c..341965b 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -553,6 +553,8 @@ void mm_release(struct task_struct *tsk, struct mm_struct *mm)
                tsk->compat_robust_list = NULL;
        }
 #endif
+       if (unlikely(!list_empty(&tsk->pi_state_list)))
+               exit_pi_state_list(tsk);
 #endif
 
        /* Get rid of any cached register state */