ext3: Fix set but unused variables

[tytso@mit.edu: Fix compilation with CONFIG_JBD_DEBUG enabled]

Acked-by: tytso@mit.edu
cc: linux-ext4@vger.kernel.org
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Jan Kara <jack@suse.cz>

diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index ee18408..2b35ddb 100644 (file)
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1447,7 +1447,6 @@ static int ext3_add_entry (handle_t *handle, struct dentry *dentry,
        struct inode *inode)
 {
        struct inode *dir = dentry->d_parent->d_inode;
-       unsigned long offset;
        struct buffer_head * bh;
        struct ext3_dir_entry_2 *de;
        struct super_block * sb;
@@ -1469,7 +1468,7 @@ static int ext3_add_entry (handle_t *handle, struct dentry *dentry,
                ext3_mark_inode_dirty(handle, dir);
        }
        blocks = dir->i_size >> sb->s_blocksize_bits;
-       for (block = 0, offset = 0; block < blocks; block++) {
+       for (block = 0; block < blocks; block++) {
                bh = ext3_bread(handle, dir, block, 0, &retval);
                if(!bh)
                        return retval;

diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 54351ac..0ccd7b1 100644 (file)
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -964,7 +964,6 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
                      ext3_fsblk_t n_blocks_count)
 {
        ext3_fsblk_t o_blocks_count;
-       unsigned long o_groups_count;
        ext3_grpblk_t last;
        ext3_grpblk_t add;
        struct buffer_head * bh;
@@ -976,7 +975,6 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
         * yet: we're going to revalidate es->s_blocks_count after
         * taking the s_resize_lock below. */
        o_blocks_count = le32_to_cpu(es->s_blocks_count);
-       o_groups_count = EXT3_SB(sb)->s_groups_count;
 
        if (test_opt(sb, DEBUG))
                printk(KERN_DEBUG "EXT3-fs: extending last group from "E3FSBLK" uto "E3FSBLK" blocks\n",

diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 93d1e47..f19ce94 100644 (file)
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -1281,13 +1281,9 @@ int journal_check_used_features (journal_t *journal, unsigned long compat,
 int 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. */
@@ -1481,7 +1477,6 @@ int journal_flush(journal_t *journal)
 
 int journal_wipe(journal_t *journal, int write)
 {
-       journal_superblock_t *sb;
        int err = 0;
 
        J_ASSERT (!(journal->j_flags & JFS_LOADED));
@@ -1490,8 +1485,6 @@ int journal_wipe(journal_t *journal, int write)
        if (err)
                return err;
 
-       sb = journal->j_superblock;
-
        if (!journal->j_tail)
                goto no_recovery;
 

diff --git a/fs/jbd/recovery.c b/fs/jbd/recovery.c
index 54c9bc9..81051da 100644 (file)
--- a/fs/jbd/recovery.c
+++ b/fs/jbd/recovery.c
@@ -283,12 +283,9 @@ int journal_recover(journal_t *journal)
 int 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);
 
@@ -297,7 +294,8 @@ int journal_skip_recovery(journal_t *journal)
                ++journal->j_transaction_sequence;
        } else {
 #ifdef CONFIG_JBD_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",
@@ -321,11 +319,6 @@ static int do_one_pass(journal_t *journal,
        unsigned int            sequence;
        int                     blocktype;
 
-       /* 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))
-                              / sizeof(journal_block_tag_t));
-
        /*
         * First thing is to establish what we expect to find in the log
         * (in terms of transaction IDs), and where (in terms of log