read_slab_journal_tail(9)

📦 version 7.3.1, in nixpkgs unstable

okay so this is read_slab_journal_tail(9) from the Kernel API Manual, and it’s literally the success-callback bestie for slab journal loading. Buckle up, we’re getting into it 💅✨

🌸 NAME 🌸

read_slab_journal_tail — read the slab journal tail block by using a vio acquired from the vio pool. That’s the whole mission, and it’s giving “one job, done slay” energy 🎯💖

✨ SYNOPSIS ✨

okay bestie, here’s the signature — copy it exactly, no cap:

void read_slab_journal_tail (struct vdo_waiter *waiter , void *context
);

🎀 ARGUMENTS 🎀

  • waiter — the vio pool waiter which has just been notified. It’s the one popping up like “notification received, bestie” 🔔🫶
  • context — the vio pool entry given to the waiter. Like the little sidecar the waiter carries into the callback 🎁

🦋 DESCRIPTION 🦋

This is the success callback from acquire_vio_from_pool when loading a slab journal. So when the pool hands over a vio and the load is on the success path, this is the function that catches the win. It’s giving “callback with main character energy,” periodt 🌈👑

💜 SEE ALSO 💜

Kernel file ./drivers/md/dm-vdo/slab-depot.c is part of the reference crew, plus all these (9) pages — yes, the whole group chat 💬😭:

That’s the page, bestie! 💖 Source/version: ./drivers/md/dm-vdo · Date: October 2026 · Manual page: read_slab_journal_tail(9). Bye, slay 🫶

📦 where this page comes from