diff options
| -rw-r--r-- | sys/kern/kern_sig.c | 17 | ||||
| -rw-r--r-- | sys/sys/signalvar.h | 2 |
2 files changed, 8 insertions, 11 deletions
diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c index 17a0e61..1d21f06 100644 --- a/sys/kern/kern_sig.c +++ b/sys/kern/kern_sig.c @@ -59,6 +59,7 @@ __FBSDID("$FreeBSD$"); #include <sys/lock.h> #include <sys/malloc.h> #include <sys/mutex.h> +#include <sys/refcount.h> #include <sys/namei.h> #include <sys/proc.h> #include <sys/procdesc.h> @@ -3432,21 +3433,17 @@ void sigacts_free(struct sigacts *ps) { - mtx_lock(&ps->ps_mtx); - ps->ps_refcnt--; - if (ps->ps_refcnt == 0) { - mtx_destroy(&ps->ps_mtx); - free(ps, M_SUBPROC); - } else - mtx_unlock(&ps->ps_mtx); + if (refcount_release(&ps->ps_refcnt) == 0) + return; + mtx_destroy(&ps->ps_mtx); + free(ps, M_SUBPROC); } struct sigacts * sigacts_hold(struct sigacts *ps) { - mtx_lock(&ps->ps_mtx); - ps->ps_refcnt++; - mtx_unlock(&ps->ps_mtx); + + refcount_acquire(&ps->ps_refcnt); return (ps); } diff --git a/sys/sys/signalvar.h b/sys/sys/signalvar.h index c784cfa..f7fcaa9 100644 --- a/sys/sys/signalvar.h +++ b/sys/sys/signalvar.h @@ -63,7 +63,7 @@ struct sigacts { sigset_t ps_osigset; /* Signals using <= 3.x osigset_t. */ sigset_t ps_usertramp; /* SunOS compat; libc sigtramp. XXX */ int ps_flag; - int ps_refcnt; + u_int ps_refcnt; struct mtx ps_mtx; }; |
