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

@@ -5274,15 +5274,15 @@
          * r_inmap after we release r_lkserlock.
          */
 
         if (nfs_rw_enter_sig(&rp->r_rwlock, RW_WRITER, INTR(vp)))
                 return (EINTR);
-        atomic_add_int(&rp->r_inmap, 1);
+        atomic_inc_uint(&rp->r_inmap);
         nfs_rw_exit(&rp->r_rwlock);
 
         if (nfs_rw_enter_sig(&rp->r_lkserlock, RW_READER, INTR(vp))) {
-                atomic_add_int(&rp->r_inmap, -1);
+                atomic_dec_uint(&rp->r_inmap);
                 return (EINTR);
         }
 
         if (vp->v_flag & VNOCACHE) {
                 error = EAGAIN;

@@ -5320,11 +5320,11 @@
         error = as_map(as, *addrp, len, segvn_create, &vn_a);
         as_rangeunlock(as);
 
 done:
         nfs_rw_exit(&rp->r_lkserlock);
-        atomic_add_int(&rp->r_inmap, -1);
+        atomic_dec_uint(&rp->r_inmap);
         return (error);
 }
 
 /* ARGSUSED */
 static int