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-rw-r--r--fs/ext4/mballoc.h16
1 files changed, 6 insertions, 10 deletions
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index 88c98f17e3d9..6b4d17c2935d 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -24,19 +24,15 @@
#include "ext4.h"
/*
+ * mb_debug() dynamic printk msgs could be used to debug mballoc code.
*/
#ifdef CONFIG_EXT4_DEBUG
-extern ushort ext4_mballoc_debug;
-
-#define mb_debug(n, fmt, ...) \
-do { \
- if ((n) <= ext4_mballoc_debug) { \
- printk(KERN_DEBUG "(%s, %d): %s: " fmt, \
- __FILE__, __LINE__, __func__, ##__VA_ARGS__); \
- } \
-} while (0)
+#define mb_debug(sb, fmt, ...) \
+ pr_debug("[%s/%d] EXT4-fs (%s): (%s, %d): %s: " fmt, \
+ current->comm, task_pid_nr(current), sb->s_id, \
+ __FILE__, __LINE__, __func__, ##__VA_ARGS__)
#else
-#define mb_debug(n, fmt, ...) no_printk(fmt, ##__VA_ARGS__)
+#define mb_debug(sb, fmt, ...) no_printk(fmt, ##__VA_ARGS__)
#endif
#define EXT4_MB_HISTORY_ALLOC 1 /* allocation */