From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 5 Oct 2009 16:18:03 +0000 (+0200)
Subject: futex: Move exit_pi_state() call to release_mm()
X-Git-Tag: firefly_0821_release~12171^2~5
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=322a2c100a8998158445599ea437fb556aa95b11;p=firefly-linux-kernel-4.4.55.git

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 ae5d8660ddff..bc2b1fdfc354 100644
--- 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 88ef51ca84de..341965b0ab1c 100644
--- 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 */