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help / color / mirror / Atom feedFrom: Melanie Plageman <[email protected]>
To: Andres Freund <[email protected]>
Cc: Kirill Reshke <[email protected]>
Cc: Heikki Linnakangas <[email protected]>
Cc: Matthias van de Meent <[email protected]>
Cc: [email protected]
Cc: Thomas Munro <[email protected]>
Cc: Noah Misch <[email protected]>
Cc: Robert Haas <[email protected]>
Cc: Michael Paquier <[email protected]>
Subject: Re: Buffer locking is special (hints, checksums, AIO writes)
Date: Wed, 14 Jan 2026 09:17:22 -0500
Message-ID: <CAAKRu_YnT_+ziEQesr4AnZM5cn8=0hHBGiTvpdDC1qPkYhBAYQ@mail.gmail.com> (raw)
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On Tue, Jan 13, 2026 at 7:49 PM Andres Freund <[email protected]> wrote:
>
> On 2026-01-13 10:05:02 -0500, Melanie Plageman wrote:
>
> > Ironic that ResOwnerReleaseBufferIO() releases pins and not locks.
>
> Not sure I follow? I don't think it releases pins? And why should it release
> locks?
Ah, I must not have actually read it or read the wrong thing.
> I also wonder if we could merge BufferIO into the private refcount
> infrastructure, similar to how the patches store the lockmode in the private
> refcount. The separate resowner acquisition does show up in profiles when
> reading from the kernel page cache, so that'd be a nice (but small)
> improvement.
When you say "BufferIO", do you mean io_wref in the BufferDesc?
- Melanie
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To: [email protected]
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Subject: Re: Buffer locking is special (hints, checksums, AIO writes)
In-Reply-To: <CAAKRu_YnT_+ziEQesr4AnZM5cn8=0hHBGiTvpdDC1qPkYhBAYQ@mail.gmail.com>
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