Re: [RFC 0/7] ext4: Allocator changes for atomic write support with DIO

[Christoph Hellwig]

On Tue, Dec 12, 2023 at 07:46:51AM +0000, John Garry wrote:
> It is assumed that the user will fallocate/dd the complete file before
> issuing atomic writes, and we will have extent alignment and length as
> required.

I don't think that's a long time maintainable usage model.