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| author | Amerigo Wang <amwang@redhat.com> | 2012-11-08 03:42:38 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-11-08 22:06:36 -0500 |
| commit | c1a6085195e832a6d14ac1e6cf601b884c38c71f (patch) | |
| tree | 1811791a89d6880cc692ee7aa2f4f1ef8a7741ce /drivers/net/netconsole.c | |
| parent | e949b09b71d975a82f13ac88ce4ad338fed213da (diff) | |
| download | lwn-c1a6085195e832a6d14ac1e6cf601b884c38c71f.tar.gz lwn-c1a6085195e832a6d14ac1e6cf601b884c38c71f.zip | |
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 <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/netconsole.c')
| -rw-r--r-- | drivers/net/netconsole.c | 6 |
1 files changed, 6 insertions, 0 deletions
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-ip>/[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; |