jbd2_journal_init_inode(9)

hey bestie 💖 welcome to jbd2_journal_init_inode(9), straight from the Kernel API Manual. this one’s short and sweet, and yes it’s giving kernel journal internals main character energy ✨

🌸 NAME 🌸

jbd2_journal_init_inode — creates a journal which maps to a inode. 🎀

✨ SYNOPSIS ✨

journal_t * jbd2_journal_init_inode (struct inode *inode );

that’s the whole signature, no cap 💅

🎀 ARGUMENTS 🎀

• inode — an inode to create the journal in. that’s the one and only argument, bestie 🫶

💫 DESCRIPTION 💫

okay so here’s the tea: jbd2_journal_init_inode creates a journal which maps an on-disk inode as the journal. The inode must exist already, must support bmap, and must have all data blocks preallocated — those are the rules, bestie, no skipping them 😭🔥

🔗 SEE ALSO 🔗

peep the kernel file and these related icons:

• Kernel file: ./fs/jbd2/journal.c
• jbd2_journal_force_commit_nested(9)
• jbd2_journal_force_commit(9)
• jbd2_journal_shrink_scan(9)
• jbd2_journal_shrink_count(9)
• jbd2_journal_init_dev(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)

xoxo, your jbd2 bestie 🫶 — this page came from ./fs/jbd2, dated October 2026, and it’s jbd2_journal_init_inode(9) in the Kernel API Manual 💖