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>
diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c
index 61f32f3..b0435dd 100644
--- a/fs/jbd/checkpoint.c
+++ b/fs/jbd/checkpoint.c
@@ -456,7 +456,7 @@
{
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 @@
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 618e21c..4bd8825 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -308,7 +308,7 @@
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 f96f850..bd3c073 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -276,7 +276,7 @@
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 @@
* 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 @@
* 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 @@
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 @@
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 = journal_init_common();
int err;
int n;
- unsigned long blocknr;
+ unsigned int blocknr;
if (!journal)
return NULL;
@@ -846,12 +846,12 @@
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 @@
**/
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 @@
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 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 db5e982..cb1a49a 100644
--- a/fs/jbd/recovery.c
+++ b/fs/jbd/recovery.c
@@ -70,7 +70,7 @@
{
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 @@
unsigned int offset)
{
int err;
- unsigned long blocknr;
+ unsigned int blocknr;
struct buffer_head *bh;
*bhp = NULL;
@@ -314,7 +314,7 @@
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 @@
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 @@
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 @@
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 @@
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 da6cd9b..ad71732 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -101,7 +101,7 @@
{
struct list_head hash;
tid_t sequence; /* Used for recovery only */
- unsigned long blocknr;
+ unsigned int blocknr;
};
@@ -126,7 +126,7 @@
/* 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 @@
(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 @@
/* 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 @@
* 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 @@
}
}
- 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 @@
*/
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_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 c2049a0..a1187a0 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -446,7 +446,7 @@
/*
* 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 @@
* 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 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 @@
/* 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 @@
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 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 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);