if_netisr(): trade NET_LOCK() for NET_RLOCK()

[Alexandr Nedvedicky]

Hello,

diff below is just cosmetic change, which has no impact on current
functionality, because there is just single network task to deliver packets to
IP stack. I just want to push this small change to tree to minimize delta
between current and my experimental branch.

OK?

thanks and
regards
sashan

--------8<---------------8<---------------8<------------------8<--------
diff --git a/sys/net/if.c b/sys/net/if.c
index e355f44e80d..15b5f94f188 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -976,14 +976,14 @@ if_netisr(void *unused)
 {
        int n, t = 0;
 
-       NET_LOCK();
+       NET_RLOCK();
 
        while ((n = netisr) != 0) {
                /* Like sched_pause() but with a rwlock dance. */
                if (curcpu()->ci_schedstate.spc_schedflags & SPCF_SHOULDYIELD) {
-                       NET_UNLOCK();
+                       NET_RUNLOCK();
                        yield();
-                       NET_LOCK();
+                       NET_RLOCK();
                }
 
                atomic_clearbits_int(&netisr, n);
@@ -1044,7 +1044,7 @@ if_netisr(void *unused)
        }
 #endif
 
-       NET_UNLOCK();
+       NET_RUNLOCK();
 }
 
 void