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

💅 probe::nfs.fop.mmap

okay bestie, welcome to the probe::nfs.fop.mmap page from the Network File Storage Tapsets — it's the NFS client mmap operation, and she's here to spill all the values you get to peek at. 🌸

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✨ SYNOPSIS ✨

probe nfs.fop.mmap {}

literally that's it. no args, no drama, just a probe that fires and hands you the goods. 🎀

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🦋 VALUES 🦋

these are the locals you get to work with inside the probe. know them, love them, they're your besties:

• cache_valid — the cache related bit mask flag 💅
• buf — the address of buf in user space
• parent_name — parent dir name 👑
• dev — device identifier
• vm_end — the first byte after the end address within vm_mm (so like, the edge of the party, not the last guest)
• vm_flag — vm flags 🚩
• cache_time — when we started read-caching this inode ⏰
• file_name — file name 🍓
• attrtimeo — how long the cached information is assumed to be valid. We need to revalidate the cached attrs for this inode if jiffies - read_cache_jiffies > attrtimeo. no cap, that's the actual condition 💀
• ino — inode number
• vm_start — start address within vm_mm

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🌈 SEE ALSO 🌈

• tapset::nfs(3stap) — go read this one too, iykyk ✨

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🫶 quick vibe check: this is a SystemTap Tapset Reference page, and it's dated September 2026 — the version number got cut off in the header, so if you need the exact one, go check the source. 🙈

and that's the whole page, bestie. mmap on NFS, fully mapped out. slay 💖🧚💜