[PATCH] jbd sparse fixes

fs/jbd/journal.c

@@ -1800,7 +1800,7 @@ int read_jbd_debug(char *page, char **start, off_t off,
 	return ret;
 }
 
-int write_jbd_debug(struct file *file, const char *buffer,
+int write_jbd_debug(struct file *file, const char __user *buffer,
 			   unsigned long count, void *data)
 {
 	char buf[32];