netdev-linux: Reduce log level for ENODEV errors getting ifindex

These are normal and unavoidable, because the vifs disappear from the kernel before they are removed them from the OVS database. Signed-off-by: Roi Dayan <[email protected]> Reviewed-by: Paul Blakey <[email protected]> Signed-off-by: Ben Pfaff <[email protected]>
dkarhi · Aug 9, 2017 · 580e115 · 580e115
1 parent cfc1964
commit 580e115
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/lib/netdev-linux.c b/lib/netdev-linux.c
@@ -5438,8 +5438,12 @@ linux_get_ifindex(const char *netdev_name)
 
     error = af_inet_ioctl(SIOCGIFINDEX, &ifr);
     if (error) {
-        VLOG_WARN_RL(&rl, "ioctl(SIOCGIFINDEX) on %s device failed: %s",
-                     netdev_name, ovs_strerror(error));
+        /* ENODEV probably means that a vif disappeared asynchronously and
+         * hasn't been removed from the database yet, so reduce the log level
+         * to INFO for that case. */
+        VLOG_RL(&rl, error == ENODEV ? VLL_INFO : VLL_ERR,
+                "ioctl(SIOCGIFINDEX) on %s device failed: %s",
+                netdev_name, ovs_strerror(error));
         return -error;
     }
     return ifr.ifr_ifindex;