[CRIU] [PATCH CRIU 08/14] restore/net/ipv6: net device and def/all configuration

[Pavel Emelyanov]

> @@ -163,9 +163,11 @@ static int net_conf_op(char *tgt, int *conf, int n, int op, char *proto,
>  			continue;
>  		}
>  		/*
> -		 * If dev conf value is the same as default skip restoring it
> +		 * If dev conf value is the same as default skip restoring it,
> +		 * mtu may be changed by disable_ipv6 so we can not skip
> +		 * it's restore
>  		 */

No, this means that we should restore mtu after disable_ipv6. And we still can check
for it to match default value.

> -		if (def_conf && conf[i] == def_conf[i]) {
> +		if (def_conf && conf[i] == def_conf[i] && strcmp(devconfs[i], "mtu")) {
>  			pr_debug("DEBUG Skip %s/%s, val =%d\n", tgt, devconfs[i], conf[i]);
>  			continue;
>  		}