netconsole: add oops_only module option (c1a60851) · Commits · 戴 / test

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>

drivers/net/netconsole.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -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;

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