aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--include/linux/sched.h2
-rw-r--r--kernel/fork.c12
-rw-r--r--kernel/signal.c19
3 files changed, 14 insertions, 19 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 7dd430b697a..921148277da 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1150,8 +1150,8 @@ extern void exit_thread(void);
extern void exit_files(struct task_struct *);
extern void __cleanup_signal(struct signal_struct *);
+extern void cleanup_sighand(struct task_struct *);
extern void __exit_signal(struct task_struct *);
-extern void __exit_sighand(struct task_struct *);
extern void exit_itimers(struct signal_struct *);
extern NORET_TYPE void do_group_exit(int);
diff --git a/kernel/fork.c b/kernel/fork.c
index 0aff28cdbad..12cdd9fc9d0 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -803,6 +803,16 @@ static inline int copy_sighand(unsigned long clone_flags, struct task_struct * t
return 0;
}
+void cleanup_sighand(struct task_struct *tsk)
+{
+ struct sighand_struct * sighand = tsk->sighand;
+
+ /* Ok, we're done with the signal handlers */
+ tsk->sighand = NULL;
+ if (atomic_dec_and_test(&sighand->count))
+ kmem_cache_free(sighand_cachep, sighand);
+}
+
static inline int copy_signal(unsigned long clone_flags, struct task_struct * tsk)
{
struct signal_struct *sig;
@@ -1224,7 +1234,7 @@ bad_fork_cleanup_mm:
bad_fork_cleanup_signal:
cleanup_signal(p);
bad_fork_cleanup_sighand:
- __exit_sighand(p);
+ cleanup_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 ca1fa854e46..b29c868bd5e 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -310,9 +310,7 @@ static void flush_sigqueue(struct sigpending *queue)
/*
* Flush all pending signals for a task.
*/
-
-void
-flush_signals(struct task_struct *t)
+void flush_signals(struct task_struct *t)
{
unsigned long flags;
@@ -326,19 +324,6 @@ flush_signals(struct task_struct *t)
/*
* This function expects the tasklist_lock write-locked.
*/
-void __exit_sighand(struct task_struct *tsk)
-{
- struct sighand_struct * sighand = tsk->sighand;
-
- /* Ok, we're done with the signal handlers */
- tsk->sighand = NULL;
- if (atomic_dec_and_test(&sighand->count))
- kmem_cache_free(sighand_cachep, sighand);
-}
-
-/*
- * This function expects the tasklist_lock write-locked.
- */
void __exit_signal(struct task_struct *tsk)
{
struct signal_struct *sig = tsk->signal;
@@ -386,7 +371,7 @@ void __exit_signal(struct task_struct *tsk)
}
tsk->signal = NULL;
- __exit_sighand(tsk);
+ cleanup_sighand(tsk);
spin_unlock(&sighand->siglock);
rcu_read_unlock();