Btrfs: fix unused members in struct btrfs_root

There isn't any real use of following members of struct btrfs_root
so delete them.

struct kobject root_kobj;
struct completion kobj_unregister;

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>

2 files changed, 0 insertions, 4 deletions

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 2ecdac0bd850..85c697d482c2 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1798,8 +1798,6 @@ struct btrfs_root {
         struct btrfs_fs_info *fs_info;
         struct extent_io_tree dirty_log_pages;
 
-        struct kobject root_kobj;
-        struct completion kobj_unregister;
         struct mutex objectid_mutex;
 
         spinlock_t accounting_lock;
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 0696a103751e..612d46eece62 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1275,12 +1275,10 @@ static void __setup_root(u32 nodesize, u32 sectorsize, u32 stripesize,
         memset(&root->root_key, 0, sizeof(root->root_key));
         memset(&root->root_item, 0, sizeof(root->root_item));
         memset(&root->defrag_progress, 0, sizeof(root->defrag_progress));
-        memset(&root->root_kobj, 0, sizeof(root->root_kobj));
         if (fs_info)
                 root->defrag_trans_start = fs_info->generation;
         else
                 root->defrag_trans_start = 0;
-        init_completion(&root->kobj_unregister);
         root->root_key.objectid = objectid;
         root->anon_dev = 0;