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btrfs: Remove unused variable in btrfs_get_extent

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trans was statically assigned to NULL and this never changed over the
course of btrfs_get_extent. So remove any code which checks whether
trans != NULL and just hardcode the fact trans is always NULL.

Resolves-coverity-id: 112806
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2017-12-01 11:19:40 +02:00 committed by David Sterba
parent 7cfad65297
commit 5c9a702ed1
1 changed files with 1 additions and 8 deletions
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9
fs/btrfs/inode.c
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@ -6948,7 +6948,6 @@ struct extent_map *btrfs_get_extent(struct btrfs_inode *inode,
struct extent_map *em = NULL;
struct extent_map_tree *em_tree = &inode->extent_tree;
struct extent_io_tree *io_tree = &inode->io_tree;
struct btrfs_trans_handle *trans = NULL;
const bool new_inline = !page || create;
read_lock(&em_tree->lock);
@ -6989,8 +6988,7 @@ struct extent_map *btrfs_get_extent(struct btrfs_inode *inode,
path->reada = READA_FORWARD;
}
ret = btrfs_lookup_file_extent(trans, root, path,
objectid, start, trans != NULL);
ret = btrfs_lookup_file_extent(NULL, root, path, objectid, start, 0);
if (ret < 0) {
err = ret;
goto out;
@ -7186,11 +7184,6 @@ out:
trace_btrfs_get_extent(root, inode, em);
btrfs_free_path(path);
if (trans) {
ret = btrfs_end_transaction(trans);
if (!err)
err = ret;
}
if (err) {
free_extent_map(em);
return ERR_PTR(err);