nfsd4_layou...pen_conflict(9)

💅 nfsd4_layou...pen_conflict(9) — from the Kernel API Manual, bestie 🎀

okay so real talk, this one is genuinely the easiest page in the whole kernel API manual, and honestly? iconic for that. it's giving "I did my part and my part was nothing." let's get into it ✨

---

🌸 NAME 🌸

nfsd4_layout_lm_open_conflict — literally just peeks at whether the file you handed it points to an inode that's got an existing open hanging around, one that would clash with the lease you're tryna grab. that's the whole job. no cap. 💖

---

🦋 SYNOPSIS 🦋

int nfsd4_layout_lm_open_conflict (struct file *filp , int arg );

---

🎀 ARGUMENTS 🎀

• filp — the file we're checking, bestie. the main character of this function, even though it does not get used for much tbh 🫶
• arg — the type of lease we're trying to acquire. like, what lease vibe are we going for 💅

---

⭐ DESCRIPTION ⭐

so the kernel calls into this operation to figure out whether there are conflicting opens out there that could stop the layout from being granted. that's the theory. that's the assignment. 🌈

but for nfsd? that check happens at a higher level, so this one trivially returns 0. that's it. that's the function. it says "no conflicts, we're slay" and moves on with its life 😭

ngl this is the "I trust you to handle it" of kernel functions and honestly? respect. no notes. 💀

---

👑 SEE ALSO 👑

• Kernel file ./fs/nfsd/nfs4layouts.c — the actual file where the lore lives ✨
• nfsd4_layout_lm_breaker_timedout(9) — its sibling with way more going on 🧚

---

okay that's the page!! short, sweet, zero drama, lowkey obsessed with how little it does 💜 mwah 💋

— sign-off from the ./fs/nfsd source tree, dated October 2026 🍓📅 (yes the header and footer said the same thing three times, we don't know why either, periodt) 🎀