linux-kernel - [tip:core/urgent] futex: Move exit_pi_state() call to release

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Date:	Tue, 6 Oct 2009 15:03:57 GMT
From:	tip-bot for Thomas Gleixner <tglx@...utronix.de>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	peterz@...radead.org, tglx@...utronix.de, ani@...rban.org
Subject: [tip:core/urgent] futex: Move exit_pi_state() call to release_mm()

Commit-ID:  322a2c100a8998158445599ea437fb556aa95b11
Gitweb:     http://git.kernel.org/tip/322a2c100a8998158445599ea437fb556aa95b11
Author:     Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Mon, 5 Oct 2009 18:18:03 +0200
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Tue, 6 Oct 2009 17:00:01 +0200

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@...utronix.de>
LKML-Reference: <new-submission>
Cc: stable@...nel.org
Cc: Anirban Sinha <ani@...rban.org>
Cc: Peter Zijlstra <peterz@...radead.org>

---
 kernel/exit.c |    2 --
 kernel/fork.c |    2 ++
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/exit.c b/kernel/exit.c
index ae5d866..bc2b1fd 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 88ef51c..341965b 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 */
--
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