diff --git a/fs/btrfs/messages.c b/fs/btrfs/messages.c
index 2f853de44473..6190777924bf 100644
--- a/fs/btrfs/messages.c
+++ b/fs/btrfs/messages.c
@@ -211,33 +211,19 @@ static struct ratelimit_state printk_limits[] = {
 	RATELIMIT_STATE_INIT(printk_limits[7], DEFAULT_RATELIMIT_INTERVAL, 100),
 };
 
-void __cold _btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
+__printf(3, 4) __cold
+void _btrfs_printk(const struct btrfs_fs_info *fs_info, unsigned int level, const char *fmt, ...)
 {
-	char lvl[PRINTK_MAX_SINGLE_HEADER_LEN + 1] = "\0";
 	struct va_format vaf;
 	va_list args;
-	int kern_level;
-	const char *type = logtypes[4];
-	struct ratelimit_state *ratelimit = &printk_limits[4];
+	const char *type = logtypes[level];
+	struct ratelimit_state *ratelimit = &printk_limits[level];
 
 #ifdef CONFIG_PRINTK_INDEX
 	printk_index_subsys_emit("%sBTRFS %s (device %s): ", NULL, fmt);
 #endif
 
 	va_start(args, fmt);
-
-	while ((kern_level = printk_get_level(fmt)) != 0) {
-		size_t size = printk_skip_level(fmt) - fmt;
-
-		if (kern_level >= '0' && kern_level <= '7') {
-			memcpy(lvl, fmt,  size);
-			lvl[size] = '\0';
-			type = logtypes[kern_level - '0'];
-			ratelimit = &printk_limits[kern_level - '0'];
-		}
-		fmt += size;
-	}
-
 	vaf.fmt = fmt;
 	vaf.va = &args;
 
@@ -247,10 +233,10 @@ void __cold _btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt,
 			char statestr[STATE_STRING_BUF_LEN];
 
 			btrfs_state_to_string(fs_info, statestr);
-			_printk("%sBTRFS %s (device %s%s): %pV\n", lvl, type,
+			_printk(KERN_SOH "%dBTRFS %s (device %s%s): %pV\n", level, type,
 				fs_info->sb->s_id, statestr, &vaf);
 		} else {
-			_printk("%sBTRFS %s: %pV\n", lvl, type, &vaf);
+			_printk(KERN_SOH "%dBTRFS %s: %pV\n", level, type, &vaf);
 		}
 	}
 
diff --git a/fs/btrfs/messages.h b/fs/btrfs/messages.h
index 7049976342a5..d4e4cad06092 100644
--- a/fs/btrfs/messages.h
+++ b/fs/btrfs/messages.h
@@ -23,19 +23,18 @@ void btrfs_no_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
 
 #ifdef CONFIG_PRINTK
 
-__printf(2, 3)
-__cold
-void _btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...);
+__printf(3, 4) __cold
+void _btrfs_printk(const struct btrfs_fs_info *fs_info, unsigned int level, const char *fmt, ...);
 
 #else
 
-#define btrfs_printk(fs_info, fmt, args...) \
+#define btrfs_printk_in_rcu(fs_info, level, fmt, args...)		\
 	btrfs_no_printk(fs_info, fmt, ##args)
 
-#define btrfs_printk_in_rcu(fs_info, fmt, args...)			\
+#define btrfs_printk_in_rcu(fs_info, level, fmt, args...)		\
 	btrfs_no_printk(fs_info, fmt, ##args)
 
-#define btrfs_printk_rl_in_rcu(fs_info, fmt, args...)			\
+#define btrfs_printk_rl_in_rcu(fs_info, level, fmt, args...)		\
 	btrfs_no_printk(fs_info, fmt, ##args)
 
 #endif
@@ -44,38 +43,38 @@ void _btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...);
  * Print a message with filesystem info, enclosed in RCU protection.
  */
 #define btrfs_crit(fs_info, fmt, args...) \
-	btrfs_printk_in_rcu(fs_info, KERN_CRIT fmt, ##args)
+	btrfs_printk_in_rcu(fs_info, LOGLEVEL_CRIT, fmt, ##args)
 #define btrfs_err(fs_info, fmt, args...) \
-	btrfs_printk_in_rcu(fs_info, KERN_ERR fmt, ##args)
+	btrfs_printk_in_rcu(fs_info, LOGLEVEL_ERR, fmt, ##args)
 #define btrfs_warn(fs_info, fmt, args...) \
-	btrfs_printk_in_rcu(fs_info, KERN_WARNING fmt, ##args)
+	btrfs_printk_in_rcu(fs_info, LOGLEVEL_WARNING, fmt, ##args)
 #define btrfs_info(fs_info, fmt, args...) \
-	btrfs_printk_in_rcu(fs_info, KERN_INFO fmt, ##args)
+	btrfs_printk_in_rcu(fs_info, LOGLEVEL_INFO, fmt, ##args)
 
 /*
  * Wrappers that use a ratelimited printk
  */
 #define btrfs_crit_rl(fs_info, fmt, args...) \
-	btrfs_printk_rl_in_rcu(fs_info, KERN_CRIT fmt, ##args)
+	btrfs_printk_rl_in_rcu(fs_info, LOGLEVEL_CRIT, fmt, ##args)
 #define btrfs_err_rl(fs_info, fmt, args...) \
-	btrfs_printk_rl_in_rcu(fs_info, KERN_ERR fmt, ##args)
+	btrfs_printk_rl_in_rcu(fs_info, LOGLEVEL_ERR, fmt, ##args)
 #define btrfs_warn_rl(fs_info, fmt, args...) \
-	btrfs_printk_rl_in_rcu(fs_info, KERN_WARNING fmt, ##args)
+	btrfs_printk_rl_in_rcu(fs_info, LOGLEVEL_WARNING, fmt, ##args)
 #define btrfs_info_rl(fs_info, fmt, args...) \
-	btrfs_printk_rl_in_rcu(fs_info, KERN_INFO fmt, ##args)
+	btrfs_printk_rl_in_rcu(fs_info, LOGLEVEL_INFO, fmt, ##args)
 
 #if defined(CONFIG_DYNAMIC_DEBUG)
 #define btrfs_debug(fs_info, fmt, args...)				\
 	_dynamic_func_call_no_desc(fmt, btrfs_printk_in_rcu,		\
-				   fs_info, KERN_DEBUG fmt, ##args)
+				   fs_info, LOGLEVEL_DEBUG, fmt, ##args)
 #define btrfs_debug_rl(fs_info, fmt, args...)				\
 	_dynamic_func_call_no_desc(fmt, btrfs_printk_rl_in_rcu,		\
-				   fs_info, KERN_DEBUG fmt, ##args)
+				   fs_info, LOGLEVEL_DEBUG, fmt, ##args)
 #elif defined(DEBUG)
 #define btrfs_debug(fs_info, fmt, args...) \
-	btrfs_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
+	btrfs_printk_in_rcu(fs_info, LOGLEVEL_DEBUG, fmt, ##args)
 #define btrfs_debug_rl(fs_info, fmt, args...) \
-	btrfs_printk_rl_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
+	btrfs_printk_rl_in_rcu(fs_info, LOGLEVEl_DEBUG, fmt, ##args)
 #else
 /* When printk() is no_printk(), expand to no-op. */
 #define btrfs_debug(fs_info, fmt, args...)	do { (void)(fs_info); } while(0)
@@ -84,14 +83,14 @@ void _btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...);
 
 #ifdef CONFIG_PRINTK
 
-#define btrfs_printk_in_rcu(fs_info, fmt, args...)	\
-do {							\
-	rcu_read_lock();				\
-	_btrfs_printk(fs_info, fmt, ##args);		\
-	rcu_read_unlock();				\
+#define btrfs_printk_in_rcu(fs_info, level, fmt, args...)	\
+do {								\
+	rcu_read_lock();					\
+	_btrfs_printk(fs_info, level, fmt, ##args);		\
+	rcu_read_unlock();					\
 } while (0)
 
-#define btrfs_printk_rl_in_rcu(fs_info, fmt, args...)		\
+#define btrfs_printk_rl_in_rcu(fs_info, level, fmt, args...)	\
 do {								\
 	static DEFINE_RATELIMIT_STATE(_rs,			\
 		DEFAULT_RATELIMIT_INTERVAL,			\
@@ -99,7 +98,7 @@ do {								\
 								\
 	rcu_read_lock();					\
 	if (__ratelimit(&_rs))					\
-		_btrfs_printk(fs_info, fmt, ##args);		\
+		_btrfs_printk(fs_info, level, fmt, ##args);	\
 	rcu_read_unlock();					\
 } while (0)