Re: [PATCH v4 01/15] docs/mm: add document for swap table
From: Barry Song
Date: Thu Sep 18 2025 - 17:35:42 EST
> > I’m not entirely sure what you mean by “page table page.”
>
> The page that gets pointed by the page table, or the page that holds the PTE.
>
> > My understanding is that you’re saying:
> > The swap table contains an array of pointers, each the same size as a PTE,
> > so its total size typically matches a PTE page table—one page on modern
> > 64-bit systems.
>
> That sounds good. Thanks for the suggestion.
> I take your suggestion with some small modifications, mostly to
> clarify the total size is the total size of one cluster of swap
> tables. The total size of all swap tables in a swap file is much
> bigger.
>
> How about this:
>
> A swap table is an array of pointers. Each pointer is the same size as a PTE.
> The size of a swap table for one swap cluster typically matches a PTE
> page table,
> which is one page on modern 64-bit systems.
Acked.
>
> Chris
Thanks
Barry