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ext4: remove initialized but not read variables

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No real bugs found, just removed some dead code.

Found by gcc 4.6's new warnings.

Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
This commit is contained in:
Andi Kleen 2010-06-14 13:28:03 -04:00 • committed by Theodore Ts'o
commit 5a0790c2c4
7 changed files with 10 additions and 50 deletions
Download patch file Download diff file Expand all files Collapse all files

12
fs/jbd2/journal.c
View file

@ -1392,13 +1392,9 @@ int jbd2_journal_check_used_features (journal_t *journal, unsigned long compat,
int jbd2_journal_check_available_features (journal_t *journal, unsigned long compat,
unsigned long ro, unsigned long incompat)
{
journal_superblock_t *sb;
if (!compat && !ro && !incompat)
return 1;
sb = journal->j_superblock;
/* We can support any known requested features iff the
* superblock is in version 2. Otherwise we fail to support any
* extended sb features. */
@ -1618,7 +1614,6 @@ int jbd2_journal_flush(journal_t *journal)
int jbd2_journal_wipe(journal_t *journal, int write)
{
journal_superblock_t *sb;
int err = 0;
J_ASSERT (!(journal->j_flags & JBD2_LOADED));
@ -1627,8 +1622,6 @@ int jbd2_journal_wipe(journal_t *journal, int write)
if (err)
return err;
sb = journal->j_superblock;
if (!journal->j_tail)
goto no_recovery;
@ -2202,8 +2195,6 @@ void jbd2_journal_init_jbd_inode(struct jbd2_inode *jinode, struct inode *inode)
void jbd2_journal_release_jbd_inode(journal_t *journal,
struct jbd2_inode *jinode)
{
int writeout = 0;
if (!journal)
return;
restart:
@ -2220,9 +2211,6 @@ restart:
goto restart;
}
/* Do we need to wait for data writeback? */
if (journal->j_committing_transaction == jinode->i_transaction)
writeout = 1;
if (jinode->i_transaction) {
list_del(&jinode->i_list);
jinode->i_transaction = NULL;

10
fs/jbd2/recovery.c
View file

@ -285,12 +285,10 @@ int jbd2_journal_recover(journal_t *journal)
int jbd2_journal_skip_recovery(journal_t *journal)
{
int err;
journal_superblock_t * sb;
struct recovery_info info;
memset (&info, 0, sizeof(info));
sb = journal->j_superblock;
err = do_one_pass(journal, &info, PASS_SCAN);
@ -299,7 +297,8 @@ int jbd2_journal_skip_recovery(journal_t *journal)
++journal->j_transaction_sequence;
} else {
#ifdef CONFIG_JBD2_DEBUG
int dropped = info.end_transaction - be32_to_cpu(sb->s_sequence);
int dropped = info.end_transaction -
be32_to_cpu(journal->j_superblock->s_sequence);
#endif
jbd_debug(1,
"JBD: ignoring %d transaction%s from the journal.\n",
@ -365,11 +364,6 @@ static int do_one_pass(journal_t *journal,
int tag_bytes = journal_tag_bytes(journal);
__u32 crc32_sum = ~0; /* Transactional Checksums */
/* Precompute the maximum metadata descriptors in a descriptor block */
int MAX_BLOCKS_PER_DESC;
MAX_BLOCKS_PER_DESC = ((journal->j_blocksize-sizeof(journal_header_t))
/ tag_bytes);
/*
* First thing is to establish what we expect to find in the log
* (in terms of transaction IDs), and where (in terms of log