linux-kernel - Re: [RFC PATCH 05/12] fs/proc/task_mmu: refactor pagemap_pmd

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Message-ID: <3f3e5582-d707-41d0-99a7-4e9c25f1224d@lucifer.local>
Date: Fri, 24 Oct 2025 21:15:59 +0100
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: Gregory Price <gourry@...rry.net>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Janosch Frank <frankja@...ux.ibm.com>,
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Subject: Re: [RFC PATCH 05/12] fs/proc/task_mmu: refactor pagemap_pmd_range()

On Fri, Oct 24, 2025 at 03:12:08PM -0400, Gregory Price wrote:
> On Fri, Oct 24, 2025 at 07:19:11PM +0100, Lorenzo Stoakes wrote:
> > On Fri, Oct 24, 2025 at 01:32:29PM -0400, Gregory Price wrote:
> >
> > A next step will be to at least rename swp_entry_t to something else, because
> > every last remnant of this 'swap entries but not really' needs to be dealt
> > with...
> >
>
> hah, was just complaining about this on the other patch.
>
> ptleaf_entry_t?

Well you kinda want to differentiate it from a normal present page table leaf,
but I really like 'non-present entry' as a description for (what were) non-swap
entries so that's out.

So maybe actually that isn't too bad of an idea...

Could also be

nonpresent_or_swap_t but that's kinda icky...

Naming is hard :)

>
> :shrug:
>
> keep fighting the good fight
> ~Gregory

Always sir! ;)

Cheers, Lorenzo