PROBE::NFS.AOP.R(3stap)

💖 probe::nfs.aop.release_page — NFS client releasing page 💖

okay so bestie, this page lives in the Network File Storage Tapsets chapter of the 3stap manual (yes that's the stap manual section, we love a reference page). it's a SystemTap probe, and honestly? it's giving observability. let's get into it 🫶

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✨ SYNOPSIS ✨

probe nfs.aop.release_page {}

that's it. that's the whole vibe. no arguments, no nothing, she just exists and waits for you to attach a handler. iconic. 💅

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🌸 VALUES 🌸

these are the goodies you get to read inside your probe body, no cap:

• page_index — the offset within the mapping. you can use it as a page identifier and as a position identifier in the page frame, so lowkey it's doing double duty and slaying while it does it. 👑
• size — release pages. (yes, that's the whole description, she's a woman of few words and we respect it.)
• ino — the inode number. every file's little government name. 📇
• dev — the device identifier. which device are we talking about? this one. 🎀
• __page — the address of the page. note the double underscore, bestie, that is NOT a typo, that is literally her name, don't touch it. 🔥

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🦋 DESCRIPTION 🦋

Fires when do a release operation on NFS. that's the moment, that's the whole thing — when NFS is doing a release operation, this probe wakes up like "not me being perceived 😭" and hands you all five values above. set it up, read your values, vibe check complete. ✨

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🌈 SEE ALSO 🌈

• tapset::nfs(3stap) — go read the family, they're all so good, iykyk. 💜

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💀 real talk reminder: this is a SystemTap tapset reference page, so the probe fires from kernel-side tapset magic — copy your probe definitions exactly, don't be out here improvising names. __page has two underscores for a reason and she will not forgive you if you drop one. 🙈

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mwah, that's the whole page, you ate it 🍓✨ stay hydrated, read your tapsets, and remember: releasing pages is a full-time job and NFS is doing it beautifully. bye bestie 💖🧚

SystemTap Tapset Reference Ver · September 2026 — that's the source/version and date stamp straight off the footer, love her, couldn't leave her out. 🎀🌸