5045 use atomic_{inc,dec}_* instead of atomic_add_*

@@ -77,17 +77,17 @@
 }
 
 void
 ksiddomain_hold(ksiddomain_t *kd)
 {
-        atomic_add_32(&kd->kd_ref, 1);
+        atomic_inc_32(&kd->kd_ref);
 }
 
 void
 ksiddomain_rele(ksiddomain_t *kd)
 {
-        if (atomic_add_32_nv(&kd->kd_ref, -1) == 0) {
+        if (atomic_dec_32_nv(&kd->kd_ref) == 0) {
                 /*
                  * The kd reference can only be incremented from 0 when
                  * the sid_lock is held; so we lock and then check need to
                  * check for 0 again.
                  */

@@ -102,17 +102,17 @@
 }
 
 void
 ksidlist_hold(ksidlist_t *ksl)
 {
-        atomic_add_32(&ksl->ksl_ref, 1);
+        atomic_inc_32(&ksl->ksl_ref);
 }
 
 void
 ksidlist_rele(ksidlist_t *ksl)
 {
-        if (atomic_add_32_nv(&ksl->ksl_ref, -1) == 0) {
+        if (atomic_dec_32_nv(&ksl->ksl_ref) == 0) {
                 int i;
 
                 for (i = 0; i < ksl->ksl_nsid; i++)
                         ksid_rele(&ksl->ksl_sids[i]);
 

@@ -259,17 +259,17 @@
 }
 
 void
 kcrsid_hold(credsid_t *kcr)
 {
-        atomic_add_32(&kcr->kr_ref, 1);
+        atomic_inc_32(&kcr->kr_ref);
 }
 
 void
 kcrsid_rele(credsid_t *kcr)
 {
-        if (atomic_add_32_nv(&kcr->kr_ref, -1) == 0) {
+        if (atomic_dec_32_nv(&kcr->kr_ref) == 0) {
                 ksid_index_t i;
 
                 for (i = 0; i < KSID_COUNT; i++)
                         ksid_rele(&kcr->kr_sidx[i]);