vdo_is_pbn_read_lock(9)

📦 version 7.3.1, in nixpkgs unstable

💅 vdo_is_pbn_read_lock(9) — a Kernel API Manual moment ✨

okay so bestie, we're in the Kernel API Manual today and this page is literally called vdo_is_pbn_read_lock, and yes it does exactly what it says on the tin 🎀 it's giving "small function, big feelings," and honestly? obsessed.

🌸 NAME 🌸

vdo_is_pbn_read_lock — check whether a pbn_lock is a read lock. that's it. that's the whole job. she's an icon, she's a legend, she asks one (1) question and answers it 💖

✨ SYNOPSIS ✨

bool vdo_is_pbn_read_lock (const struct pbn_lock *lock);

returns a bool, takes a const struct pbn_lock * named lock, no cap 🫶

🦋 ARGUMENTS 🦋

  • lock — the lock you want to check. that's the one. hand her the lock, she'll tell you what's up 💅

⭐ RETURN ⭐

True if the lock is a read lock. 🔥 that's the whole verdict, no drama, no extra lore, fr fr.

like a vibe check but for locks — either she's a read lock or she isn't, and this function is not here to soften the blow 💀

👑 SEE ALSO 👑

right so the source file for all this is the Kernel file ./drivers/md/dm-vdo/physical-zone.c — that's the mothership, go visit her 🌈

and now the extended cinematic universe, in the exact order the page lists them, because we do not skip entries in this house:

like, the whole physical-zone friend group showed up to the group chat 😭🫶 read them all, iykyk.

🧚 sign-off 🧚

this absolute banger lives in ./drivers/md/dm-vdo and the page is stamped October 2026 — so yeah, she's dated, she's sourced, she's perfect, periodt 💜🎀🦋✨

📦 where this page comes from