DEFINE_IREF_EVENT
DEFINE_IREF_EVENT(xfs_irele);
DEFINE_IREF_EVENT(xfs_inode_pin);
DEFINE_IREF_EVENT(xfs_inode_unpin);
DEFINE_IREF_EVENT(xfs_inode_unpin_nowait);
DEFINE_IREF_EVENT(xfs_inode_push_pinned);
DEFINE_IREF_EVENT(xfs_inode_push_stale);