jbd2_journal_stop(9)

📦 version 7.3.1, in nixpkgs unstable

✨ jbd2_journal_stop(9) ✨

okay so this is a page from the Kernel API Manual — yes, the kernel has its own manual and honestly it's kind of iconic 🎀 we're talking about jbd2_journal_stop(9) today bestie, the function that completes a transaction. sit down, hydrate, let's go 💅

🌸 NAME 🌸

jbd2_journal_stop — complete a transaction

like, you're done with a transaction and you're wrapping it up. that's the whole vibe 🦋

⭐ SYNOPSIS ⭐

int jbd2_journal_stop (handle_t *handle );

look at that signature. gorgeous. no notes 🔥

💖 ARGUMENTS 💖

  • handle — the transaction to complete. that's it, that's the whole argument. your transaction. the one you're done with. go off 👑

🧚 DESCRIPTION 🧚

All done for a particular handle. 🎉

There is not much action needed here, ngl — which is lowkey a relief because if there's one thing we love it's a function that does its job without drama. We just return any remaining buffer credits to the transaction and remove the handle. win-win, credits returned, handle gone, clean exit, slay ✨

The only complication is that we need to start a commit operation if the filesystem is marked for synchronous update. so like... sometimes there's one extra step, but it's fine, it's handled 🫶

jbd2_journal_stop itself will not usually return an error, but it may do so in unusual circumstances. and in particular? expect it to return -EIO if a jbd2_journal_abort has been executed since the transaction began. so if somebody aborted the journal on you mid-transaction, that's the error you're getting, fr fr 😭

heads up bestie: the -EIO case is real and it happens when a jbd2_journal_abort went down since the transaction started. it's not common, but it's not a myth either. don't say I didn't warn you 💀

🦋 SEE ALSO 🦋

Kernel file ./fs/jbd2/transaction.c — that's where the magic lives 💜

then the whole friend group:

like, the entire jbd2 cinematic universe. watch them all in order, iykyk 🌈

that's the whole page bestie 💖 it lives under ./fs/jbd2, and this edition dropped October 2026 — if you quote it in your essay, cite it right, jbd2_journal_stop(9), Kernel API Manual. periodt 🎀✨

📦 where this page comes from