Eliminate semexit_hook using at_exit(9) and rm_at_exit(9).

Reviewed by:	alfred

4 files changed, 2 insertions, 20 deletions

diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c
index c41fec6..d772be6 100644
--- a/sys/kern/kern_exit.c
+++ b/sys/kern/kern_exit.c
@@ -209,11 +209,6 @@ exit1(td, rv)
 	}
 	PROC_UNLOCK(p->p_leader);
 
-	/*
-	 * XXX Shutdown SYSV semaphores
-	 */
-	semexit(p);
-
 	/* The next two chunks should probably be moved to vmspace_exit. */
 	vm = p->p_vmspace;
 	/*
diff --git a/sys/kern/sysv_ipc.c b/sys/kern/sysv_ipc.c
index b6e753e..cfd29be 100644
--- a/sys/kern/sysv_ipc.c
+++ b/sys/kern/sysv_ipc.c
@@ -41,21 +41,9 @@
 #include <sys/proc.h>
 #include <sys/ucred.h>
 
-void (*semexit_hook)(struct proc *) = NULL;
 void (*shmfork_hook)(struct proc *, struct proc *) = NULL;
 void (*shmexit_hook)(struct proc *) = NULL;
 
-/* called from kern_exit.c */
-void
-semexit(p)
-	struct proc *p;
-{
-
-	if (semexit_hook != NULL)
-		semexit_hook(p);
-	return;
-}
-
 /* called from kern_fork.c */
 void
 shmfork(p1, p2)
diff --git a/sys/kern/sysv_sem.c b/sys/kern/sysv_sem.c
index ed99f57..56bd842 100644
--- a/sys/kern/sysv_sem.c
+++ b/sys/kern/sysv_sem.c
@@ -202,7 +202,7 @@ seminit(void)
 		suptr->un_proc = NULL;
 	}
 	semu_list = NULL;
-	semexit_hook = &semexit_myhook;
+	at_exit(semexit_myhook);
 }
 
 static int
@@ -215,7 +215,7 @@ semunload(void)
 	free(sem, M_SEM);
 	free(sema, M_SEM);
 	free(semu, M_SEM);
-	semexit_hook = NULL;
+	rm_at_exit(semexit_myhook);
 	return (0);
 }
 
diff --git a/sys/sys/ipc.h b/sys/sys/ipc.h
index 7ca8b9d..9d748de 100644
--- a/sys/sys/ipc.h
+++ b/sys/sys/ipc.h
@@ -87,7 +87,6 @@ struct thread;
 struct proc;
 
 int	ipcperm __P((struct thread *, struct ipc_perm *, int));
-extern void (*semexit_hook)(struct proc *);
 extern void (*shmfork_hook)(struct proc *, struct proc *);
 extern void (*shmexit_hook)(struct proc *);