linux-kernel - [ 085/101] freezer: exec should clear PF_NOFREEZE along with PF

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Message-Id: <20121029213249.760820060@linuxfoundation.org>
Date:	Mon, 29 Oct 2012 14:35:38 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	alan@...rguk.ukuu.org.uk, Oleg Nesterov <oleg@...hat.com>,
	Tejun Heo <tj@...nel.org>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Subject: [ 085/101] freezer: exec should clear PF_NOFREEZE along with PF_KTHREAD

3.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Oleg Nesterov <oleg@...hat.com>

commit b40a79591ca918e7b91b0d9b6abd5d00f2e88c19 upstream.

flush_old_exec() clears PF_KTHREAD but forgets about PF_NOFREEZE.

Signed-off-by: Oleg Nesterov <oleg@...hat.com>
Acked-by: Tejun Heo <tj@...nel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/exec.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1110,7 +1110,8 @@ int flush_old_exec(struct linux_binprm *
 	bprm->mm = NULL;		/* We're using it now */
 
 	set_fs(USER_DS);
-	current->flags &= ~(PF_RANDOMIZE | PF_FORKNOEXEC | PF_KTHREAD);
+	current->flags &=
+		~(PF_RANDOMIZE | PF_FORKNOEXEC | PF_KTHREAD | PF_NOFREEZE);
 	flush_thread();
 	current->personality &= ~bprm->per_clear;
 


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