jbd2_journal...ommit_nested(9)
π jbd2_journal...ommit_nested(9) β NAME
Okay bestie, welcome to the Kernel API Manual page for jbd2_journal...ommit_nested(9) (yes that's the title, it's giving truncated-and-thriving, don't @ me) β¨
jbd2_journal_force_commit_nested β force and wait upon a commit if the calling process is not within transaction. That's the whole vibe check: no transaction, no problem, commit gets forced and we wait for it like a text back π«Ά
πΈ SYNOPSIS
int jbd2_journal_force_commit_nested (journal_t *journal );
That's it, that's the signature. She's short and she knows it π
π ARGUMENTS
journalβ the journal to force. And heads up, the docs slide "Returns true if progress was made" right in here too, so like... noted, iconically π
π¦ DESCRIPTION
So here's the tea: this one's used for forcing out undo-protected data that contains bitmaps, when the fs is running out of space. Lowkey a rescue mission π¨ β the filesystem's about to run dry on space and you need those undo-protected bitmap-having bits pushed out. Slay. No cap, that's the entire job description.
β SEE ALSO
Kernel file ./fs/jbd2/journal.c β go read her, she's the main character π
And the whole friend group:
jbd2_journal_force_commit(9)jbd2_journal_shrink_scan(9)jbd2_journal_shrink_count(9)jbd2_journal_init_dev(9)jbd2_journal_init_inode(9)jbd2_journal_update_sb_log_tail(9)jbd2_mark_journal_empty(9)__jbd2_journal_erase(9)jbd2_journal_update_sb_errno(9)jbd2_journal_load(9)jbd2_journal_destroy(9)jbd2_journal_check_used_features(9)jbd2_journal_check_available_features(9)jbd2_journal_set_features(9)jbd2_journal_flush(9)jbd2_journal_wipe(9)jbd2_journal_abort(9)jbd2_journal_errno(9)jbd2_journal_clear_err(9)jbd2_journal_ack_err(9)
bestie if you're here because your fs is running out of space, that's between you and the bitmaps π
okay that's the page!! sourced from ./fs/jbd2, dated October 2026, and filed under jbd2_journal...ommit_nested(9) β mwah, go force a commit, ily ππβ¨
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms