linux-kernel - Re: [RFC PATCH 00/12] remove is_swap

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Message-ID: <aQABKgQYfVkO7n9m@gourry-fedora-PF4VCD3F>
Date: Mon, 27 Oct 2025 19:32:58 -0400
From: Gregory Price <gourry@...rry.net>
To: Jason Gunthorpe <jgg@...pe.ca>
Cc: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
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Subject: Re: [RFC PATCH 00/12] remove is_swap_[pte, pmd]() + non-swap
 confusion

On Mon, Oct 27, 2025 at 01:09:23PM -0300, Jason Gunthorpe wrote:
> 
> I'm not keen on is_non_present_entry(), it seems confusing again.
> 

The confusion stems from `present` referring to the state of the hardware
PTE bits, instead of referring to the state of the entry.

But even if we're stuck with "non-present entry", it's still infinitely
more understandable (and teachable) than "non_swap_swap_entry".

So even if we never get to the point of replacing swp_entry_t, this is a
clear and obvious improvement.
~Gregory