diff options
Diffstat (limited to 'sys/kern/sysv_sem.c')
| -rw-r--r-- | sys/kern/sysv_sem.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/sys/kern/sysv_sem.c b/sys/kern/sysv_sem.c index 7eeb625..bf1eae3 100644 --- a/sys/kern/sysv_sem.c +++ b/sys/kern/sysv_sem.c @@ -13,6 +13,7 @@ #include <sys/param.h> #include <sys/systm.h> #include <sys/sysproto.h> +#include <sys/eventhandler.h> #include <sys/kernel.h> #include <sys/proc.h> #include <sys/lock.h> @@ -35,7 +36,7 @@ static MALLOC_DEFINE(M_SEM, "sem", "SVID compatible semaphores"); static void seminit(void); static int sysvsem_modload(struct module *, int, void *); static int semunload(void); -static void semexit_myhook(struct proc *p); +static void semexit_myhook(void *arg, struct proc *p); static int sysctl_sema(SYSCTL_HANDLER_ARGS); static int semvalid(int semid, struct semid_ds *semaptr); @@ -66,6 +67,7 @@ static struct mtx *sema_mtx; /* semaphore id pool mutexes*/ static struct sem *sem; /* semaphore pool */ SLIST_HEAD(, sem_undo) semu_list; /* list of active undo structures */ static int *semu; /* undo structure pool */ +static eventhandler_tag semexit_tag; #define SEMUNDO_MTX sem_mtx #define SEMUNDO_LOCK() mtx_lock(&SEMUNDO_MTX); @@ -203,8 +205,9 @@ seminit(void) suptr->un_proc = NULL; } SLIST_INIT(&semu_list); - at_exit(semexit_myhook); mtx_init(&sem_mtx, "sem", NULL, MTX_DEF); + semexit_tag = EVENTHANDLER_REGISTER(process_exit, semexit_myhook, NULL, + EVENTHANDLER_PRI_ANY); } static int @@ -215,10 +218,10 @@ semunload(void) if (semtot != 0) return (EBUSY); + EVENTHANDLER_DEREGISTER(process_exit, semexit_tag); free(sem, M_SEM); free(sema, M_SEM); free(semu, M_SEM); - rm_at_exit(semexit_myhook); for (i = 0; i < seminfo.semmni; i++) mtx_destroy(&sema_mtx[i]); mtx_destroy(&sem_mtx); @@ -1139,7 +1142,8 @@ done2: * semaphores. */ static void -semexit_myhook(p) +semexit_myhook(arg, p) + void *arg; struct proc *p; { struct sem_undo *suptr; |
