diff --git a/include/linux/sched.h b/include/linux/sched.h index ca1fd31aae979b75ceb99273a4ecfd4d10f4fcf3..69c2a1e1529e9dfdb95394bc105ec1f8d400da2d 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1151,7 +1151,6 @@ extern void exit_thread(void); extern void exit_files(struct task_struct *); extern void exit_signal(struct task_struct *); extern void __exit_signal(struct task_struct *); -extern void exit_sighand(struct task_struct *); extern void __exit_sighand(struct task_struct *); extern void exit_itimers(struct signal_struct *); diff --git a/kernel/fork.c b/kernel/fork.c index 33ffb5bf0dbc6092ed1ad5bae1c5b46289026efd..8a46ad52be8f3dabd44f6ccf3a2ccf4a37f58794 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1208,7 +1208,8 @@ bad_fork_cleanup_mm: bad_fork_cleanup_signal: exit_signal(p); bad_fork_cleanup_sighand: - exit_sighand(p); + if (p->sighand) + __exit_sighand(p); bad_fork_cleanup_fs: exit_fs(p); /* blocking */ bad_fork_cleanup_files: diff --git a/kernel/signal.c b/kernel/signal.c index c5b65aa4c2bccfdcc82f919422f4b7589c2015f9..1d7f4463c32d15c14a2b1f9e366da57a35ab20ac 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -336,20 +336,6 @@ void __exit_sighand(struct task_struct *tsk) kmem_cache_free(sighand_cachep, sighand); } -void exit_sighand(struct task_struct *tsk) -{ - write_lock_irq(&tasklist_lock); - rcu_read_lock(); - if (tsk->sighand != NULL) { - struct sighand_struct *sighand = rcu_dereference(tsk->sighand); - spin_lock(&sighand->siglock); - __exit_sighand(tsk); - spin_unlock(&sighand->siglock); - } - rcu_read_unlock(); - write_unlock_irq(&tasklist_lock); -} - /* * This function expects the tasklist_lock write-locked. */