FS_VNODE_CAPABILITY_FREE_COOKIE
if (!HasVNodeCapability(vnode, FS_VNODE_CAPABILITY_FREE_COOKIE))
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_FREE_COOKIE, fFSOps->free_cookie);
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_FREE_COOKIE, fLowLevelOps.release);
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_FREE_COOKIE, fFS->ops.release);
capabilities.Set(FS_VNODE_CAPABILITY_FREE_COOKIE, ops->free_cookie);