PROBE::NFS.FOP.A(3stap)

💅 PROBE::NFS.FOP.A(3stap) 💅

okay so bestie, welcome to the Network File Storage Tapsets corner of the SystemTap universe 🦋 this one's a probe page, and it's lowkey iconic.

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✨ NAME ✨

probe::nfs.fop.aio_read — the NFS client aio_read file operation probe 🫶

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✨ SYNOPSIS ✨

probe nfs.fop.aio_read {}

that's it. that's the whole vibe check. no arguments, no drama, just a probe hanging out waiting to fire 💅

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✨ VALUES ✨

these are all the lil variables you get to peek at when this probe goes off. every single one, no skips, periodt 👑

• attrtimeo — how long the cached info is assumed to be valid, fr fr. we gotta revalidate the cached attrs for this inode if jiffies - read_cache_jiffies > attrtimeo.
• ino — the inode number 🌸
• dev — device identifier 🎀
• file_name — file name, exactly what it says on the tin ✨
• pos — current position of file 📍
• parent_name — parent dir name, iykyk 🧚
• count — read bytes, the receipts 💜
• cache_time — when we started read-caching this inode ⏰
• buf — the address of buf in user space 👀
• cache_valid — cache related bit mask flag 🌈

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✨ SEE ALSO ✨

• tapset::nfs(3stap) — go read this too bestie, it's giving main character energy 🔥

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and that's the whole page, no cap. this was the SystemTap Tapset Reference, version Ver, dated September 2026 — tysm for reading, love u, bye 💖🎀🦋