diff mbox series

[v4,09/11] Add durable_name_printk_ratelimited

Message ID 20200724171706.1550403-10-tasleson@redhat.com (mailing list archive)
State New, archived
Headers show
Series Add persistent durable identifier to storage log messages | expand

Commit Message

Tony Asleson July 24, 2020, 5:17 p.m. UTC 
Create a rate limited macro for durable_name_printk so that
we can use this for printk_ratelimited usage in the block
layers and add the durable name key/value to the log
message.

Signed-off-by: Tony Asleson <tasleson@redhat.com>
---
 include/linux/dev_printk.h | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/include/linux/dev_printk.h b/include/linux/dev_printk.h
index 502cf9fd7fe7..931977f5c85e 100644
--- a/include/linux/dev_printk.h
+++ b/include/linux/dev_printk.h
@@ -37,6 +37,15 @@  __printf(3, 4) __cold
 void durable_name_printk(const char *level, const struct device *dev,
 			const char *fmt, ...);
 
+#define durable_name_printk_ratelimited(level, dev, fmt, ...)		\
+do {									\
+	static DEFINE_RATELIMIT_STATE(_rs,				\
+					DEFAULT_RATELIMIT_INTERVAL,	\
+					DEFAULT_RATELIMIT_BURST);	\
+	if (__ratelimit(&_rs))						\
+		durable_name_printk(level, dev, fmt, ##__VA_ARGS__);	\
+} while (0)
+
 __printf(2, 3) __cold
 void _dev_emerg(const struct device *dev, const char *fmt, ...);
 __printf(2, 3) __cold