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[PATCH] rename __exit_sighand to cleanup_sighand

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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 <oleg@tv-sign.ru>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Oleg Nesterov 2006-03-28 16:11:17 -08:00 committed by Linus Torvalds
parent 29ff471234
commit c81addc9d3
3 changed files with 14 additions and 19 deletions
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2
include/linux/sched.h
View File

@ -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);

12
kernel/fork.c
View File

@ -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:

19
kernel/signal.c
View File

@ -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();