dlm: add log_info config option

This config option can be used to disable the
LOG_INFO recovery messages.

Signed-off-by: Zhilong Liu <zlliu@suse.com>
Signed-off-by: David Teigland <teigland@redhat.com>

fs/dlm/config.c

@@ -73,6 +73,7 @@ struct dlm_cluster {
 	unsigned int cl_toss_secs;
 	unsigned int cl_scan_secs;
 	unsigned int cl_log_debug;
+	unsigned int cl_log_info;
 	unsigned int cl_protocol;
 	unsigned int cl_timewarn_cs;
 	unsigned int cl_waitwarn_us;
@@ -95,6 +96,7 @@ enum {
 	CLUSTER_ATTR_TOSS_SECS,
 	CLUSTER_ATTR_SCAN_SECS,
 	CLUSTER_ATTR_LOG_DEBUG,
+	CLUSTER_ATTR_LOG_INFO,
 	CLUSTER_ATTR_PROTOCOL,
 	CLUSTER_ATTR_TIMEWARN_CS,
 	CLUSTER_ATTR_WAITWARN_US,
@@ -166,6 +168,7 @@ CLUSTER_ATTR(recover_timer, 1);
 CLUSTER_ATTR(toss_secs, 1);
 CLUSTER_ATTR(scan_secs, 1);
 CLUSTER_ATTR(log_debug, 0);
+CLUSTER_ATTR(log_info, 0);
 CLUSTER_ATTR(protocol, 0);
 CLUSTER_ATTR(timewarn_cs, 1);
 CLUSTER_ATTR(waitwarn_us, 0);
@@ -180,6 +183,7 @@ static struct configfs_attribute *cluster_attrs[] = {
 	[CLUSTER_ATTR_TOSS_SECS] = &cluster_attr_toss_secs,
 	[CLUSTER_ATTR_SCAN_SECS] = &cluster_attr_scan_secs,
 	[CLUSTER_ATTR_LOG_DEBUG] = &cluster_attr_log_debug,
+	[CLUSTER_ATTR_LOG_INFO] = &cluster_attr_log_info,
 	[CLUSTER_ATTR_PROTOCOL] = &cluster_attr_protocol,
 	[CLUSTER_ATTR_TIMEWARN_CS] = &cluster_attr_timewarn_cs,
 	[CLUSTER_ATTR_WAITWARN_US] = &cluster_attr_waitwarn_us,
@@ -365,6 +369,7 @@ static struct config_group *make_cluster(struct config_group *g,
 	cl->cl_toss_secs = dlm_config.ci_toss_secs;
 	cl->cl_scan_secs = dlm_config.ci_scan_secs;
 	cl->cl_log_debug = dlm_config.ci_log_debug;
+	cl->cl_log_info = dlm_config.ci_log_info;
 	cl->cl_protocol = dlm_config.ci_protocol;
 	cl->cl_timewarn_cs = dlm_config.ci_timewarn_cs;
 	cl->cl_waitwarn_us = dlm_config.ci_waitwarn_us;
@@ -850,6 +855,7 @@ int dlm_our_addr(struct sockaddr_storage *addr, int num)
 #define DEFAULT_TOSS_SECS         10
 #define DEFAULT_SCAN_SECS          5
 #define DEFAULT_LOG_DEBUG          0
+#define DEFAULT_LOG_INFO           1
 #define DEFAULT_PROTOCOL           0
 #define DEFAULT_TIMEWARN_CS      500 /* 5 sec = 500 centiseconds */
 #define DEFAULT_WAITWARN_US	   0
@@ -865,6 +871,7 @@ struct dlm_config_info dlm_config = {
 	.ci_toss_secs = DEFAULT_TOSS_SECS,
 	.ci_scan_secs = DEFAULT_SCAN_SECS,
 	.ci_log_debug = DEFAULT_LOG_DEBUG,
+	.ci_log_info = DEFAULT_LOG_INFO,
 	.ci_protocol = DEFAULT_PROTOCOL,
 	.ci_timewarn_cs = DEFAULT_TIMEWARN_CS,
 	.ci_waitwarn_us = DEFAULT_WAITWARN_US,

fs/dlm/config.h

@@ -31,6 +31,7 @@ struct dlm_config_info {
 	int ci_toss_secs;
 	int ci_scan_secs;
 	int ci_log_debug;
+	int ci_log_info;
 	int ci_protocol;
 	int ci_timewarn_cs;
 	int ci_waitwarn_us;

fs/dlm/dlm_internal.h

@@ -65,8 +65,16 @@ struct dlm_mhandle;
 	printk(KERN_ERR "dlm: "fmt"\n" , ##args)
 #define log_error(ls, fmt, args...) \
 	printk(KERN_ERR "dlm: %s: " fmt "\n", (ls)->ls_name , ##args)
+
 #define log_rinfo(ls, fmt, args...) \
-	printk(KERN_INFO "dlm: %s: " fmt "\n", (ls)->ls_name , ##args);
+do { \
+	if (dlm_config.ci_log_info) \
+		printk(KERN_INFO "dlm: %s: " fmt "\n", \
+			(ls)->ls_name, ##args); \
+	else if (dlm_config.ci_log_debug) \
+		printk(KERN_DEBUG "dlm: %s: " fmt "\n", \
+		       (ls)->ls_name , ##args); \
+} while (0)
 
 #define log_debug(ls, fmt, args...) \
 do { \