From c1a6085195e832a6d14ac1e6cf601b884c38c71f Mon Sep 17 00:00:00 2001 From: Amerigo Wang Date: Thu, 8 Nov 2012 03:42:38 +0000 Subject: [PATCH] netconsole: add oops_only module option 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 Signed-off-by: David S. Miller --- drivers/net/netconsole.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index b3321129a83c..6989ebe2bc79 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; -- 2.39.2