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btrfs: remove unused pointer 'tree' in btrfs_submit_compressed_read 

Pointer 'tree' is being assigned but is never used hence it is redundant
and can be removed. This is a leftover from cleanup patch
00032d38ea ("btrfs: drop extent_io_ops::merge_bio_hook
callback").

Cleans up clang warning:

  warning: variable 'tree' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Colin Ian King 2018-08-28 14:21:01 +01:00 committed by David Sterba
parent d005dbeca0
commit 29c5e5d496
1 changed files with 0 additions and 2 deletions
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2
fs/btrfs/compression.c
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@ -528,7 +528,6 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags)
{
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct extent_io_tree *tree;
struct extent_map_tree *em_tree;
struct compressed_bio *cb;
unsigned long compressed_len;
@ -545,7 +544,6 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
int faili = 0;
u32 *sums;
tree = &BTRFS_I(inode)->io_tree;
em_tree = &BTRFS_I(inode)->extent_tree;
/* we need the actual starting offset of this extent in the file */