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jbd: Journal block numbers can ever be only 32-bit use unsigned int for them

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It does not make sense to store block number for journal as unsigned long
since they can be only 32-bit (because of on-disk format limitation). So
change in-memory structures and variables to use unsigned int instead.

Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara 2009-08-03 19:21:00 +02:00
parent 19003c18e9
commit 9c28cbccec
6 changed files with 49 additions and 49 deletions
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26
include/linux/jbd.h
View file

@ -446,7 +446,7 @@ struct transaction_s
/*
* Where in the log does this transaction's commit start? [no locking]
*/
unsigned long t_log_start;
unsigned int t_log_start;
/* Number of buffers on the t_buffers list [j_list_lock] */
int t_nr_buffers;
@ -701,26 +701,26 @@ struct journal_s
* Journal head: identifies the first unused block in the journal.
* [j_state_lock]
*/
unsigned long j_head;
unsigned int j_head;
/*
* Journal tail: identifies the oldest still-used block in the journal.
* [j_state_lock]
*/
unsigned long j_tail;
unsigned int j_tail;
/*
* Journal free: how many free blocks are there in the journal?
* [j_state_lock]
*/
unsigned long j_free;
unsigned int j_free;
/*
* Journal start and end: the block numbers of the first usable block
* and one beyond the last usable block in the journal. [j_state_lock]
*/
unsigned long j_first;
unsigned long j_last;
unsigned int j_first;
unsigned int j_last;
/*
* Device, blocksize and starting block offset for the location where we
@ -728,7 +728,7 @@ struct journal_s
*/
struct block_device *j_dev;
int j_blocksize;
unsigned long j_blk_offset;
unsigned int j_blk_offset;
/*
* Device which holds the client fs. For internal journal this will be
@ -859,7 +859,7 @@ extern void __journal_clean_data_list(transaction_t *transaction);
/* Log buffer allocation */
extern struct journal_head * journal_get_descriptor_buffer(journal_t *);
int journal_next_log_block(journal_t *, unsigned long *);
int journal_next_log_block(journal_t *, unsigned int *);
/* Commit management */
extern void journal_commit_transaction(journal_t *);
@ -874,7 +874,7 @@ extern int
journal_write_metadata_buffer(transaction_t *transaction,
struct journal_head *jh_in,
struct journal_head **jh_out,
unsigned long blocknr);
unsigned int blocknr);
/* Transaction locking */
extern void __wait_on_journal (journal_t *);
@ -942,7 +942,7 @@ extern void journal_abort (journal_t *, int);
extern int journal_errno (journal_t *);
extern void journal_ack_err (journal_t *);
extern int journal_clear_err (journal_t *);
extern int journal_bmap(journal_t *, unsigned long, unsigned long *);
extern int journal_bmap(journal_t *, unsigned int, unsigned int *);
extern int journal_force_commit(journal_t *);
/*
@ -976,14 +976,14 @@ extern int journal_init_revoke_caches(void);
extern void journal_destroy_revoke(journal_t *);
extern int journal_revoke (handle_t *,
unsigned long, struct buffer_head *);
unsigned int, struct buffer_head *);
extern int journal_cancel_revoke(handle_t *, struct journal_head *);
extern void journal_write_revoke_records(journal_t *,
transaction_t *, int);
/* Recovery revoke support */
extern int journal_set_revoke(journal_t *, unsigned long, tid_t);
extern int journal_test_revoke(journal_t *, unsigned long, tid_t);
extern int journal_set_revoke(journal_t *, unsigned int, tid_t);
extern int journal_test_revoke(journal_t *, unsigned int, tid_t);
extern void journal_clear_revoke(journal_t *);
extern void journal_switch_revoke_table(journal_t *journal);