[LSF/MM/BPF TOPIC] State Of The Page

Chuck Lever III chuck.lever at oracle.com
Sat Jan 20 06:11:02 PST 2024



> On Jan 19, 2024, at 11:24 AM, Matthew Wilcox <willy at infradead.org> wrote:
> 
> It's probably worth doing another roundup of where we are on our journey
> to separating folios, slabs, pages, etc.  Something suitable for people
> who aren't MM experts, and don't care about the details of how page
> allocation works.  I can talk for hours about whatever people want to
> hear about but some ideas from me:
> 
> - Overview of how the conversion is going
> - Convenience functions for filesystem writers
> - What's next?
> - What's the difference between &folio->page and page_folio(folio, 0)?
> - What are we going to do about bio_vecs?

Thanks for suggesting bio_vecs, one of my current favorite topics.

I'm still interested in any work going on for a bio_vec-enabled
API to the kernel's IOMMU infrastructure, which I've heard Leon R.
is working on.


> - How does all of this work with kmap()?
> 
> I'm sure people would like to suggest other questions they have that
> aren't adequately answered already and might be of interest to a wider
> audience.
> 

--
Chuck Lever




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