Christoph Hellwig <hch@xxxxxx> writes: > And my point is that if we ensure S_DAX can only be checked if there > are no blocks on the file, is is fairly easy to provide the same > guarantee. And I've not heard any argument that we really need more > flexibility than that. In fact I think just being able to change it > on the parent directory and inheriting the flag might be more than > plenty, which would lead to a very simple implementation without any > of the crazy overhead in this series. I know of one user who had at least mentioned it to me, so I cc'd him. Jonathan, can you describe your use case for being able to change a file between dax and non-dax modes? Or, if I'm misremembering, just correct me? Thanks! Jeff
