On Jul 12, 2005 22:27 +0200, Adrian Bunk wrote:
> - make needlessly global functions static
I had previously commented on this patch:
> - journal.c: remove the unused global function __journal_internal_check
> and move the check to journal_init
I don't mind removing this function, but it shouldn't be put inside #ifdef
JBD_DEBUG, as that would remove the check from the compiler-parsed code
and defeat the purpose of the check.
> - remove the following write-only global variable:
> - journal.c: current_journal
Seems fine.
> - remove the following unneeded EXPORT_SYMBOL's:
> - journal.c: journal_check_used_features
Should be kept for API completeness.
> - remove the following unneeded EXPORT_SYMBOL's:
> - journal.c: journal_recover
Doesn't appear usable in any case, should be removed.
> Signed-off-by: Adrian Bunk <[email protected]>
>
> ---
>
> This patch was already sent on:
> - 3 Jul 2005
> - 14 Jun 2005
>
> fs/jbd/journal.c | 41 ++++++++++++++++++-----------------------
> fs/jbd/revoke.c | 3 ++-
> include/linux/jbd.h | 3 ---
> 3 files changed, 20 insertions(+), 27 deletions(-)
>
> --- linux-2.6.12-rc6-mm1-full/include/linux/jbd.h.old 2005-06-14 03:58:20.000000000 +0200
> +++ linux-2.6.12-rc6-mm1-full/include/linux/jbd.h 2005-06-14 04:00:56.000000000 +0200
> @@ -900,8 +900,6 @@
> int start, int len, int bsize);
> extern journal_t * journal_init_inode (struct inode *);
> extern int journal_update_format (journal_t *);
> -extern int journal_check_used_features
> - (journal_t *, unsigned long, unsigned long, unsigned long);
> extern int journal_check_available_features
> (journal_t *, unsigned long, unsigned long, unsigned long);
> extern int journal_set_features
> @@ -914,7 +912,6 @@
> 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 *);
> --- linux-2.6.12-rc6-mm1-full/fs/jbd/journal.c.old 2005-06-14 03:57:39.000000000 +0200
> +++ linux-2.6.12-rc6-mm1-full/fs/jbd/journal.c 2005-06-14 04:08:24.000000000 +0200
> @@ -59,13 +59,11 @@
> EXPORT_SYMBOL(journal_init_dev);
> EXPORT_SYMBOL(journal_init_inode);
> EXPORT_SYMBOL(journal_update_format);
> -EXPORT_SYMBOL(journal_check_used_features);
> EXPORT_SYMBOL(journal_check_available_features);
> 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 +79,7 @@
> 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 +92,6 @@
> 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 +108,12 @@
> * 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
> @@ -1181,8 +1166,10 @@
> * features. Return true (non-zero) if it does.
> **/
>
> -int journal_check_used_features (journal_t *journal, unsigned long compat,
> - unsigned long ro, unsigned long incompat)
> +static int journal_check_used_features (journal_t *journal,
> + unsigned long compat,
> + unsigned long ro,
> + unsigned long incompat)
> {
> journal_superblock_t *sb;
>
> @@ -1439,7 +1426,7 @@
> * 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 +1472,7 @@
>
> /* 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;
> @@ -1888,7 +1875,7 @@
>
> 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;
> @@ -1898,7 +1885,7 @@
> 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];
> @@ -1987,6 +1974,14 @@
> {
> 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();
> --- linux-2.6.12-rc6-mm1-full/fs/jbd/revoke.c.old 2005-06-14 03:58:36.000000000 +0200
> +++ linux-2.6.12-rc6-mm1-full/fs/jbd/revoke.c 2005-06-14 03:58:41.000000000 +0200
> @@ -116,7 +116,8 @@
> (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;
Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.
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