ext4: delete "set but not used" variables

Signed-off-by: NJon Ernst <jonernst07@gmail.com>
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: NZheng Liu <wenqing.lz@taobao.com>

fs/ext4/inline.c

@@ -1841,7 +1841,6 @@ int ext4_try_to_evict_inline_data(handle_t *handle,
 {
 	int error;
 	struct ext4_xattr_entry *entry;
-	struct ext4_xattr_ibody_header *header;
 	struct ext4_inode *raw_inode;
 	struct ext4_iloc iloc;
 
@@ -1850,7 +1849,6 @@ int ext4_try_to_evict_inline_data(handle_t *handle,
 		return error;
 
 	raw_inode = ext4_raw_inode(&iloc);
-	header = IHDR(inode, raw_inode);
 	entry = (struct ext4_xattr_entry *)((void *)raw_inode +
 					    EXT4_I(inode)->i_inline_off);
 	if (EXT4_XATTR_LEN(entry->e_name_len) +

fs/ext4/ioctl.c

@@ -101,9 +101,8 @@ static long swap_inode_boot_loader(struct super_block *sb,
 	handle_t *handle;
 	int err;
 	struct inode *inode_bl;
-	struct ext4_inode_info *ei;
 	struct ext4_inode_info *ei_bl;
-	struct ext4_sb_info *sbi;
+	struct ext4_sb_info *sbi = EXT4_SB(sb);
 
 	if (inode->i_nlink != 1 || !S_ISREG(inode->i_mode)) {
 		err = -EINVAL;
@@ -115,9 +114,6 @@ static long swap_inode_boot_loader(struct super_block *sb,
 		goto swap_boot_out;
 	}
 
-	sbi = EXT4_SB(sb);
-	ei = EXT4_I(inode);
-
 	inode_bl = ext4_iget(sb, EXT4_BOOT_LOADER_INO);
 	if (IS_ERR(inode_bl)) {
 		err = PTR_ERR(inode_bl);