From c81addc9d3a0ebff2155e0cd86f90820ab97147e Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 28 Mar 2006 16:11:17 -0800 Subject: [PATCH] [PATCH] rename __exit_sighand to cleanup_sighand Cosmetic, rename __exit_sighand to cleanup_sighand and move it close to copy_sighand(). This matches copy_signal/cleanup_signal naming, and I think it is easier to follow. Signed-off-by: Oleg Nesterov Cc: "Eric W. Biederman" Acked-by: "Paul E. McKenney" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sched.h | 2 +- kernel/fork.c | 12 +++++++++++- kernel/signal.c | 19 ++----------------- 3 files changed, 14 insertions(+), 19 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 7dd430b697..921148277d 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 0aff28cdba..12cdd9fc9d 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 ca1fa854e4..b29c868bd5 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; @@ -323,19 +321,6 @@ flush_signals(struct task_struct *t) spin_unlock_irqrestore(&t->sighand->siglock, flags); } -/* - * 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. */ @@ -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(); -- 2.39.5