[PATCH] fs/jbd/: cleanups

This patch contains the following cleanups:
- make needlessly global functions static
- journal.c: remove the unused global function __journal_internal_check
             and move the check to journal_init
- remove the following write-only global variable:
  - journal.c: current_journal
- remove the following unneeded EXPORT_SYMBOL:
  - journal.c: journal_recover

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3 files changed, 16 insertions, 22 deletions

diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 5e7b43949517..71cfe25d716e 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -65,7 +65,6 @@ EXPORT_SYMBOL(journal_set_features);
 EXPORT_SYMBOL(journal_create);
 EXPORT_SYMBOL(journal_load);
 EXPORT_SYMBOL(journal_destroy);
-EXPORT_SYMBOL(journal_recover);
 EXPORT_SYMBOL(journal_update_superblock);
 EXPORT_SYMBOL(journal_abort);
 EXPORT_SYMBOL(journal_errno);
@@ -81,6 +80,7 @@ EXPORT_SYMBOL(journal_try_to_free_buffers);
 EXPORT_SYMBOL(journal_force_commit);
 
 static int journal_convert_superblock_v1(journal_t *, journal_superblock_t *);
+static void __journal_abort_soft (journal_t *journal, int errno);
 
 /*
  * Helper function used to manage commit timeouts
@@ -93,16 +93,6 @@ static void commit_timeout(unsigned long __data)
         wake_up_process(p);
 }
 
-/* Static check for data structure consistency.  There's no code
- * invoked --- we'll just get a linker failure if things aren't right.
- */
-void __journal_internal_check(void)
-{
-        extern void journal_bad_superblock_size(void);
-        if (sizeof(struct journal_superblock_s) != 1024)
-                journal_bad_superblock_size();
-}
-
 /*
  * kjournald: The main thread function used to manage a logging device
  * journal.
@@ -119,16 +109,12 @@ void __journal_internal_check(void)
  *    known as checkpointing, and this thread is responsible for that job.
  */
 
-journal_t *current_journal;             // AKPM: debug
-
-int kjournald(void *arg)
+static int kjournald(void *arg)
 {
         journal_t *journal = (journal_t *) arg;
         transaction_t *transaction;
         struct timer_list timer;
 
-        current_journal = journal;
-
         daemonize("kjournald");
 
         /* Set up an interval timer which can be used to trigger a
@@ -1439,7 +1425,7 @@ int journal_wipe(journal_t *journal, int write)
  * device this journal is present.
  */
 
-const char *journal_dev_name(journal_t *journal, char *buffer)
+static const char *journal_dev_name(journal_t *journal, char *buffer)
 {
         struct block_device *bdev;
 
@@ -1485,7 +1471,7 @@ void __journal_abort_hard(journal_t *journal)
 
 /* Soft abort: record the abort error status in the journal superblock,
  * but don't do any other IO. */
-void __journal_abort_soft (journal_t *journal, int errno)
+static void __journal_abort_soft (journal_t *journal, int errno)
 {
         if (journal->j_flags & JFS_ABORT)
                 return;
@@ -1880,7 +1866,7 @@ EXPORT_SYMBOL(journal_enable_debug);
 
 static struct proc_dir_entry *proc_jbd_debug;
 
-int read_jbd_debug(char *page, char **start, off_t off,
+static int read_jbd_debug(char *page, char **start, off_t off,
                           int count, int *eof, void *data)
 {
         int ret;
@@ -1890,7 +1876,7 @@ int read_jbd_debug(char *page, char **start, off_t off,
         return ret;
 }
 
-int write_jbd_debug(struct file *file, const char __user *buffer,
+static int write_jbd_debug(struct file *file, const char __user *buffer,
                            unsigned long count, void *data)
 {
         char buf[32];
@@ -1979,6 +1965,14 @@ static int __init journal_init(void)
 {
         int ret;
 
+/* Static check for data structure consistency.  There's no code
+ * invoked --- we'll just get a linker failure if things aren't right.
+ */
+        extern void journal_bad_superblock_size(void);
+        if (sizeof(struct journal_superblock_s) != 1024)
+                journal_bad_superblock_size();
+
+
         ret = journal_init_caches();
         if (ret != 0)
                 journal_destroy_caches();
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index d327a598f861..93b9f45eebda 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -116,7 +116,8 @@ static inline int hash(journal_t *journal, unsigned long block)
                 (block << (hash_shift - 12))) & (table->hash_size - 1);
 }
 
-int insert_revoke_hash(journal_t *journal, unsigned long blocknr, tid_t seq)
+static int insert_revoke_hash(journal_t *journal, unsigned long blocknr,
+                              tid_t seq)
 {
         struct list_head *hash_list;
         struct jbd_revoke_record_s *record;
diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index 593407e865b1..84321a4cac93 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -914,7 +914,6 @@ extern int	   journal_wipe       (journal_t *, int);
 extern int         journal_skip_recovery        (journal_t *);
 extern void        journal_update_superblock    (journal_t *, int);
 extern void        __journal_abort_hard (journal_t *);
-extern void        __journal_abort_soft (journal_t *, int);
 extern void        journal_abort      (journal_t *, int);
 extern int         journal_errno      (journal_t *);
 extern void        journal_ack_err    (journal_t *);