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-rw-r--r--fs/jbd/journal.c18
-rw-r--r--include/linux/jbd.h15
2 files changed, 24 insertions, 9 deletions
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 6510d6355729..2d04f9afafd7 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -90,6 +90,24 @@ static int journal_convert_superblock_v1(journal_t *, journal_superblock_t *);
static void __journal_abort_soft (journal_t *journal, int errno);
static const char *journal_dev_name(journal_t *journal, char *buffer);
+#ifdef CONFIG_JBD_DEBUG
+void __jbd_debug(int level, const char *file, const char *func,
+ unsigned int line, const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ if (level > journal_enable_debug)
+ return;
+ va_start(args, fmt);
+ vaf.fmt = fmt;
+ vaf.va = &args;
+ printk(KERN_DEBUG "%s: (%s, %u): %pV\n", file, func, line, &vaf);
+ va_end(args);
+}
+EXPORT_SYMBOL(__jbd_debug);
+#endif
+
/*
* Helper function used to manage commit timeouts
*/
diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index bc3e57d367fc..31229e0be90b 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -57,16 +57,13 @@
#define JBD_EXPENSIVE_CHECKING
extern u8 journal_enable_debug;
-#define jbd_debug(n, f, a...) \
- do { \
- if ((n) <= journal_enable_debug) { \
- printk (KERN_DEBUG "(%s, %d): %s: ", \
- __FILE__, __LINE__, __func__); \
- printk (f, ## a); \
- } \
- } while (0)
+void __jbd_debug(int level, const char *file, const char *func,
+ unsigned int line, const char *fmt, ...);
+
+#define jbd_debug(n, fmt, a...) \
+ __jbd_debug((n), __FILE__, __func__, __LINE__, (fmt), ##a)
#else
-#define jbd_debug(f, a...) /**/
+#define jbd_debug(n, fmt, a...) /**/
#endif
static inline void *jbd_alloc(size_t size, gfp_t flags)