FSVolume.KernelCacheCoherencyAction.invalidate
An action to invalidate (clear) the cache, discarding any dirty data without writing to storage. This also invalidates the item’s cached attributes, so the next request for attributes fetches them from your module.
Declaration
case invalidateDiscussion
For a directory, this also purges the kernel name cache for the directory’s entries. With the name cache purged, any later lookup re-populates the cache.