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From: Melanie Plageman <melanieplageman@gmail.com>
Date: Tue, 13 Jan 2026 10:05:02 -0500
Message-ID: <CAAKRu_Zw+o7BwYPMv5mcQk0OH4sro01GgS4YJrHcHMi=u2ep9w@mail.gmail.com>
Subject: Re: Buffer locking is special (hints, checksums, AIO writes)
To: Andres Freund <andres@anarazel.de>
Cc: Kirill Reshke <reshkekirill@gmail.com>, Heikki Linnakangas <hlinnaka@iki.fi>, 
	Matthias van de Meent <boekewurm+postgres@gmail.com>, pgsql-hackers@postgresql.org, 
	Thomas Munro <thomas.munro@gmail.com>, Noah Misch <noah@leadboat.com>, 
	Robert Haas <robertmhaas@gmail.com>, Michael Paquier <michael.paquier@gmail.com>
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On Mon, Jan 12, 2026 at 7:33=E2=80=AFPM Andres Freund <andres@anarazel.de> =
wrote:
>
> - added a commit that renames ResOwnerReleaseBufferPin to
>   ResOwnerReleaseBuffer (et al), as it now also releases content locks if=
 held
>
>   I kept this separate as I'm not yet sure about the new name, partially =
due
>   to there also being a "buffer io" resowner.  I tried "buffer ownership"=
 for
>   the resowner that tracks pins and locks, but that was long and not clea=
rly
>   better.

I didn't look at the patch but I strongly agree that
ResOwnerReleaseBufferPin() should not also release locks, so it should
have a new name. Ironic that ResOwnerReleaseBufferIO() releases pins
and not locks.

What about ResOwnerReleaseBufferClaim() or
ResOwnerReleaseBufferAccess() or ResOwnerReleaseBufferHold()?

- Melanie