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authorAndi Kleen <andi@firstfloor.org>2010-06-14 19:28:03 +0200
committerTheodore Ts'o <tytso@mit.edu>2010-06-14 19:28:03 +0200
commit5a0790c2c4a18435759a70e1562450035d778339 (patch)
tree80acb12d0e37196cf60ae4ca150c6b556115f302 /fs/jbd2
parentext4: Convert more i_flags references to use accessor functions (diff)
downloadlinux-5a0790c2c4a18435759a70e1562450035d778339.tar.xz
linux-5a0790c2c4a18435759a70e1562450035d778339.zip
ext4: remove initialized but not read variables
No real bugs found, just removed some dead code. Found by gcc 4.6's new warnings. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/jbd2')
-rw-r--r--fs/jbd2/journal.c12
-rw-r--r--fs/jbd2/recovery.c10
2 files changed, 2 insertions, 20 deletions
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index bc2ff5932769..f7bf15787d68 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -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;
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index 049281b7cb89..2bc4d5f116f1 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -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