From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cong Wang Subject: [PATCH net-next] netconsole: add oops_only module option Date: Thu, 8 Nov 2012 21:42:38 +0800 Message-ID: <1352382158-3928-1-git-send-email-amwang@redhat.com> Cc: David Miller , Cong Wang To: netdev@vger.kernel.org Return-path: Received: from mx1.redhat.com ([209.132.183.28]:7733 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755582Ab2KHNnC (ORCPT ); Thu, 8 Nov 2012 08:43:02 -0500 Sender: netdev-owner@vger.kernel.org List-ID: Some people wants to log only oops messages via netconsole, (this is also why netoops was invented) so add a module option for netconsole. This can be tuned via /sys/module/netconsole/parameters/oops_only at run time as well. Cc: David Miller Signed-off-by: Cong Wang --- diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index b332112..6989ebe 100644 --- a/drivers/net/netconsole.c +++ b/drivers/net/netconsole.c @@ -56,6 +56,10 @@ static char config[MAX_PARAM_LENGTH]; module_param_string(netconsole, config, MAX_PARAM_LENGTH, 0); MODULE_PARM_DESC(netconsole, " netconsole=[src-port]@[src-ip]/[dev],[tgt-port]@/[tgt-macaddr]"); +static bool oops_only = false; +module_param(oops_only, bool, 0600); +MODULE_PARM_DESC(oops_only, "Only log oops messages"); + #ifndef MODULE static int __init option_setup(char *opt) { @@ -683,6 +687,8 @@ static void write_msg(struct console *con, const char *msg, unsigned int len) struct netconsole_target *nt; const char *tmp; + if (oops_only && !oops_in_progress) + return; /* Avoid taking lock and disabling interrupts unnecessarily */ if (list_empty(&target_list)) return;