btrfs: remove unused btrfs_root::defrag_trans_start
authorDavid Sterba <dsterba@suse.com>
Tue, 23 Jun 2020 19:23:54 +0000 (21:23 +0200)
committerDavid Sterba <dsterba@suse.com>
Mon, 27 Jul 2020 10:55:28 +0000 (12:55 +0200)
commita2570ef330b959eb37e3a437b9884d9cc4b6a3d9
tree781d61888e62922b9fa091ae9bd896c75dcdc729
parentbab16e21e8bbd644067289cfa328f8a67f3e333d
btrfs: remove unused btrfs_root::defrag_trans_start

Last touched in 2013 by commit de78b51a2852 ("btrfs: remove cache only
arguments from defrag path") that was the only code that used the value.
Now it's only set but never used for anything, so we can remove it.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/ctree.h
fs/btrfs/disk-io.c
fs/btrfs/tree-defrag.c