btrfs: remove unused member btrfs_root::name

Added in 58176a9604c ("Btrfs: Add per-root block accounting and sysfs
entries") in 2007, the roots had names exported in sysfs. The code
was commented out in 4df27c4d5cc1dda54ed ("Btrfs: change how subvolumes
are organized") and cleaned by 182608c8294b5fe9 ("btrfs: remove old
unused commented out code").

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 9c63893..4ca6c4e 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1219,7 +1219,6 @@ struct btrfs_root {
        u64 defrag_trans_start;
        struct btrfs_key defrag_progress;
        struct btrfs_key defrag_max;
-       char *name;
 
        /* the dirty list is only used by non-reference counted roots */
        struct list_head dirty_list;

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 9b208cc..3830867 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1154,7 +1154,6 @@ static void __setup_root(struct btrfs_root *root, struct btrfs_fs_info *fs_info,
        root->highest_objectid = 0;
        root->nr_delalloc_inodes = 0;
        root->nr_ordered_extents = 0;
-       root->name = NULL;
        root->inode_tree = RB_ROOT;
        INIT_RADIX_TREE(&root->delayed_nodes_tree, GFP_ATOMIC);
        root->block_rsv = NULL;
@@ -3849,7 +3848,6 @@ static void free_fs_root(struct btrfs_root *root)
        free_extent_buffer(root->commit_root);
        kfree(root->free_ino_ctl);
        kfree(root->free_ino_pinned);
-       kfree(root->name);
        btrfs_put_fs_root(root);
 }