[PATCH v6 00/33] Split ptdesc from struct page

Hugh Dickins hughd at google.com
Tue Jun 27 14:44:08 AEST 2023

On Mon, 26 Jun 2023, Vishal Moola (Oracle) wrote:

> The MM subsystem is trying to shrink struct page. This patchset
> introduces a memory descriptor for page table tracking - struct ptdesc.
>  39 files changed, 686 insertions(+), 455 deletions(-)

I don't see the point of this patchset: to me it is just obfuscation of
the present-day tight relationship between page table and struct page.

Matthew already explained:

> The intent is to get ptdescs to be dynamically allocated at some point
> in the ~2-3 years out future when we have finished the folio project ...

So in a kindly mood, I'd say that this patchset is ahead of its time.
But I can certainly adapt to it, if everyone else sees some point to it.


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