release_journal_locks(9)

📦 version 7.3.1, in nixpkgs unstable

💖 release_journal_locks — a page from the Kernel API Manual

ok so bestie, we're looking at release_journal_locks(9), and no cap, the name tells you almost everything: it's a callback that gets invoked after a slab summary update completes. that's it. that's the whole vibe. ✨

🎀 SYNOPSIS

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

literally the whole signature. two args, zero drama, returns nothing (void — she gives, she doesn't take 🫶).

🌸 ARGUMENTS

  • waiter — the slab summary waiter that has just been notified. like, she just got the text, and now she's here 💅
  • context — the result code of the update. the receipts. the outcome. iykyk.

🦋 DESCRIPTION

ok so here's the lore: this function is registered in the constructor on behalf of update_tail_block_location. so update_tail_block_location didn't want to handle the callback itself, it was like "someone else handle this pls" and release_journal_locks said "say less" 👑

and technically? it implements waiter_callback_fn. that's her type. that's her whole job description. iconic behavior.

ngl there's not a ton more to say here — the page is short and she knows it. main character energy doesn't need a long bio. 😌

🔥 SEE ALSO

bestie, buckle up, because the friend group is huge. this is the whole squad from Kernel file ./drivers/md/dm-vdo/slab-depot.c:

like. that's the whole gc right there. every single one. i counted, don't worry 💜

ok that's the page!! this one came from ./drivers/md/dm-vdo, dated October 2026, and she's filed under release_journal_locks(9) — go read her friends, they're all right there 😭💖🎀

📦 where this page comes from