Symbol: BTRFS_DELAYED_DELETION_ITEM
fs/btrfs/delayed-inode.c
1634
item = btrfs_alloc_delayed_item(0, node, BTRFS_DELAYED_DELETION_ITEM);
fs/btrfs/delayed-inode.c
530
if (item->type == BTRFS_DELAYED_DELETION_ITEM)