[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 <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>

1 files changed, 11 insertions, 1 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 0aff28cdbadd..12cdd9fc9d02 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: