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

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>

6 files changed, 49 insertions, 49 deletions

diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c
index 61f32f3868cd..b0435dd0654d 100644
--- a/fs/jbd/checkpoint.c
+++ b/fs/jbd/checkpoint.c
@@ -456,7 +456,7 @@ int cleanup_journal_tail(journal_t *journal)
 {
         transaction_t * transaction;
         tid_t           first_tid;
-        unsigned long   blocknr, freed;
+        unsigned int    blocknr, freed;
 
         if (is_journal_aborted(journal))
                 return 1;
@@ -502,8 +502,8 @@ int cleanup_journal_tail(journal_t *journal)
                 freed = freed + journal->j_last - journal->j_first;
 
         jbd_debug(1,
-                  "Cleaning journal tail from %d to %d (offset %lu), "
-                  "freeing %lu\n",
+                  "Cleaning journal tail from %d to %d (offset %u), "
+                  "freeing %u\n",
                   journal->j_tail_sequence, first_tid, blocknr, freed);
 
         journal->j_free += freed;
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 618e21c0b7a3..4bd882548c45 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -308,7 +308,7 @@ void journal_commit_transaction(journal_t *journal)
         int bufs;
         int flags;
         int err;
-        unsigned long blocknr;
+        unsigned int blocknr;
         ktime_t start_time;
         u64 commit_time;
         char *tagp = NULL;
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index f96f85092d1c..bd3c073b485d 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -276,7 +276,7 @@ static void journal_kill_thread(journal_t *journal)
 int journal_write_metadata_buffer(transaction_t *transaction,
                                   struct journal_head  *jh_in,
                                   struct journal_head **jh_out,
-                                  unsigned long blocknr)
+                                  unsigned int blocknr)
 {
         int need_copy_out = 0;
         int done_copy_out = 0;
@@ -567,9 +567,9 @@ int log_wait_commit(journal_t *journal, tid_t tid)
  * Log buffer allocation routines:
  */
 
-int journal_next_log_block(journal_t *journal, unsigned long *retp)
+int journal_next_log_block(journal_t *journal, unsigned int *retp)
 {
-        unsigned long blocknr;
+        unsigned int blocknr;
 
         spin_lock(&journal->j_state_lock);
         J_ASSERT(journal->j_free > 1);
@@ -590,11 +590,11 @@ int journal_next_log_block(journal_t *journal, unsigned long *retp)
  * this is a no-op.  If needed, we can use j_blk_offset - everything is
  * ready.
  */
-int journal_bmap(journal_t *journal, unsigned long blocknr,
-                 unsigned long *retp)
+int journal_bmap(journal_t *journal, unsigned int blocknr,
+                 unsigned int *retp)
 {
         int err = 0;
-        unsigned long ret;
+        unsigned int ret;
 
         if (journal->j_inode) {
                 ret = bmap(journal->j_inode, blocknr);
@@ -604,7 +604,7 @@ int journal_bmap(journal_t *journal, unsigned long blocknr,
                         char b[BDEVNAME_SIZE];
 
                         printk(KERN_ALERT "%s: journal block not found "
-                                        "at offset %lu on %s\n",
+                                        "at offset %u on %s\n",
                                 __func__,
                                 blocknr,
                                 bdevname(journal->j_dev, b));
@@ -630,7 +630,7 @@ int journal_bmap(journal_t *journal, unsigned long blocknr,
 struct journal_head *journal_get_descriptor_buffer(journal_t *journal)
 {
         struct buffer_head *bh;
-        unsigned long blocknr;
+        unsigned int blocknr;
         int err;
 
         err = journal_next_log_block(journal, &blocknr);
@@ -774,7 +774,7 @@ journal_t * journal_init_inode (struct inode *inode)
         journal_t *journal = journal_init_common();
         int err;
         int n;
-        unsigned long blocknr;
+        unsigned int blocknr;
 
         if (!journal)
                 return NULL;
@@ -846,12 +846,12 @@ static void journal_fail_superblock (journal_t *journal)
 static int journal_reset(journal_t *journal)
 {
         journal_superblock_t *sb = journal->j_superblock;
-        unsigned long first, last;
+        unsigned int first, last;
 
         first = be32_to_cpu(sb->s_first);
         last = be32_to_cpu(sb->s_maxlen);
         if (first + JFS_MIN_JOURNAL_BLOCKS > last + 1) {
-                printk(KERN_ERR "JBD: Journal too short (blocks %lu-%lu).\n",
+                printk(KERN_ERR "JBD: Journal too short (blocks %u-%u).\n",
                        first, last);
                 journal_fail_superblock(journal);
                 return -EINVAL;
@@ -885,7 +885,7 @@ static int journal_reset(journal_t *journal)
  **/
 int journal_create(journal_t *journal)
 {
-        unsigned long blocknr;
+        unsigned int blocknr;
         struct buffer_head *bh;
         journal_superblock_t *sb;
         int i, err;
@@ -969,14 +969,14 @@ void journal_update_superblock(journal_t *journal, int wait)
         if (sb->s_start == 0 && journal->j_tail_sequence ==
                                 journal->j_transaction_sequence) {
                 jbd_debug(1,"JBD: Skipping superblock update on recovered sb "
-                        "(start %ld, seq %d, errno %d)\n",
+                        "(start %u, seq %d, errno %d)\n",
                         journal->j_tail, journal->j_tail_sequence,
                         journal->j_errno);
                 goto out;
         }
 
         spin_lock(&journal->j_state_lock);
-        jbd_debug(1,"JBD: updating superblock (start %ld, seq %d, errno %d)\n",
+        jbd_debug(1,"JBD: updating superblock (start %u, seq %d, errno %d)\n",
                   journal->j_tail, journal->j_tail_sequence, journal->j_errno);
 
         sb->s_sequence = cpu_to_be32(journal->j_tail_sequence);
@@ -1371,7 +1371,7 @@ int journal_flush(journal_t *journal)
 {
         int err = 0;
         transaction_t *transaction = NULL;
-        unsigned long old_tail;
+        unsigned int old_tail;
 
         spin_lock(&journal->j_state_lock);
 
diff --git a/fs/jbd/recovery.c b/fs/jbd/recovery.c
index db5e982c5ddf..cb1a49ae605e 100644
--- a/fs/jbd/recovery.c
+++ b/fs/jbd/recovery.c
@@ -70,7 +70,7 @@ static int do_readahead(journal_t *journal, unsigned int start)
 {
         int err;
         unsigned int max, nbufs, next;
-        unsigned long blocknr;
+        unsigned int blocknr;
         struct buffer_head *bh;
 
         struct buffer_head * bufs[MAXBUF];
@@ -132,7 +132,7 @@ static int jread(struct buffer_head **bhp, journal_t *journal,
                  unsigned int offset)
 {
         int err;
-        unsigned long blocknr;
+        unsigned int blocknr;
         struct buffer_head *bh;
 
         *bhp = NULL;
@@ -314,7 +314,7 @@ static int do_one_pass(journal_t *journal,
                         struct recovery_info *info, enum passtype pass)
 {
         unsigned int            first_commit_ID, next_commit_ID;
-        unsigned long           next_log_block;
+        unsigned int            next_log_block;
         int                     err, success = 0;
         journal_superblock_t *  sb;
         journal_header_t *      tmp;
@@ -367,14 +367,14 @@ static int do_one_pass(journal_t *journal,
                         if (tid_geq(next_commit_ID, info->end_transaction))
                                 break;
 
-                jbd_debug(2, "Scanning for sequence ID %u at %lu/%lu\n",
+                jbd_debug(2, "Scanning for sequence ID %u at %u/%u\n",
                           next_commit_ID, next_log_block, journal->j_last);
 
                 /* Skip over each chunk of the transaction looking
                  * either the next descriptor block or the final commit
                  * record. */
 
-                jbd_debug(3, "JBD: checking block %ld\n", next_log_block);
+                jbd_debug(3, "JBD: checking block %u\n", next_log_block);
                 err = jread(&bh, journal, next_log_block);
                 if (err)
                         goto failed;
@@ -429,7 +429,7 @@ static int do_one_pass(journal_t *journal,
                         tagp = &bh->b_data[sizeof(journal_header_t)];
                         while ((tagp - bh->b_data +sizeof(journal_block_tag_t))
                                <= journal->j_blocksize) {
-                                unsigned long io_block;
+                                unsigned int io_block;
 
                                 tag = (journal_block_tag_t *) tagp;
                                 flags = be32_to_cpu(tag->t_flags);
@@ -443,10 +443,10 @@ static int do_one_pass(journal_t *journal,
                                         success = err;
                                         printk (KERN_ERR
                                                 "JBD: IO error %d recovering "
-                                                "block %ld in log\n",
+                                                "block %u in log\n",
                                                 err, io_block);
                                 } else {
-                                        unsigned long blocknr;
+                                        unsigned int blocknr;
 
                                         J_ASSERT(obh != NULL);
                                         blocknr = be32_to_cpu(tag->t_blocknr);
@@ -581,7 +581,7 @@ static int scan_revoke_records(journal_t *journal, struct buffer_head *bh,
         max = be32_to_cpu(header->r_count);
 
         while (offset < max) {
-                unsigned long blocknr;
+                unsigned int blocknr;
                 int err;
 
                 blocknr = be32_to_cpu(* ((__be32 *) (bh->b_data+offset)));
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index da6cd9bdaabc..ad717328343a 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -101,7 +101,7 @@ struct jbd_revoke_record_s
 {
         struct list_head  hash;
         tid_t             sequence;     /* Used for recovery only */
-        unsigned long     blocknr;
+        unsigned int      blocknr;
 };
 
 
@@ -126,7 +126,7 @@ static void flush_descriptor(journal_t *, struct journal_head *, int, int);
 /* Utility functions to maintain the revoke table */
 
 /* Borrowed from buffer.c: this is a tried and tested block hash function */
-static inline int hash(journal_t *journal, unsigned long block)
+static inline int hash(journal_t *journal, unsigned int block)
 {
         struct jbd_revoke_table_s *table = journal->j_revoke;
         int hash_shift = table->hash_shift;
@@ -136,7 +136,7 @@ static inline int hash(journal_t *journal, unsigned long block)
                 (block << (hash_shift - 12))) & (table->hash_size - 1);
 }
 
-static int insert_revoke_hash(journal_t *journal, unsigned long blocknr,
+static int insert_revoke_hash(journal_t *journal, unsigned int blocknr,
                               tid_t seq)
 {
         struct list_head *hash_list;
@@ -166,7 +166,7 @@ oom:
 /* Find a revoke record in the journal's hash table. */
 
 static struct jbd_revoke_record_s *find_revoke_record(journal_t *journal,
-                                                      unsigned long blocknr)
+                                                      unsigned int blocknr)
 {
         struct list_head *hash_list;
         struct jbd_revoke_record_s *record;
@@ -332,7 +332,7 @@ void journal_destroy_revoke(journal_t *journal)
  * by one.
  */
 
-int journal_revoke(handle_t *handle, unsigned long blocknr,
+int journal_revoke(handle_t *handle, unsigned int blocknr,
                    struct buffer_head *bh_in)
 {
         struct buffer_head *bh = NULL;
@@ -401,7 +401,7 @@ int journal_revoke(handle_t *handle, unsigned long blocknr,
                 }
         }
 
-        jbd_debug(2, "insert revoke for block %lu, bh_in=%p\n", blocknr, bh_in);
+        jbd_debug(2, "insert revoke for block %u, bh_in=%p\n", blocknr, bh_in);
         err = insert_revoke_hash(journal, blocknr,
                                 handle->h_transaction->t_tid);
         BUFFER_TRACE(bh_in, "exit");
@@ -644,7 +644,7 @@ static void flush_descriptor(journal_t *journal,
  */
 
 int journal_set_revoke(journal_t *journal,
-                       unsigned long blocknr,
+                       unsigned int blocknr,
                        tid_t sequence)
 {
         struct jbd_revoke_record_s *record;
@@ -668,7 +668,7 @@ int journal_set_revoke(journal_t *journal,
  */
 
 int journal_test_revoke(journal_t *journal,
-                        unsigned long blocknr,
+                        unsigned int blocknr,
                         tid_t sequence)
 {
         struct jbd_revoke_record_s *record;
diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index c2049a04fa0b..a1187a0c99b4 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -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);