Re: [RFC PATCH V2] iomap: add support to track dirty state of sub pages

[Christoph Hellwig]

On Tue, Aug 18, 2020 at 05:50:19PM +0100, Matthew Wilcox wrote:
> Looks like Christoph changed his mind sometime between that message
> and the first commit: 9dc55f1389f9569acf9659e58dd836a9c70df217

No, as Darrick pointed out it was all about the header dependency.

> My THP patches convert the bit array to be per-block rather than
> per-sector, so this is all going to go away soon ;-)

I've asked a while ago, but let me repeat:  Can you split out all the
useful iomap bits that are not directly dependent on the new THP
infrastructure and send them out ASAP?  I'd like to pre-load this
work at least a merge window before the actual THP bits.