nilfs_salvage_orphan_logs(9)

💾 nilfs_salvage_orphan_logs(9) — bestie edition 🎀

okay so this one is a kernel API manual page (section 9, iykyk) for nilfs_salvage_orphan_logs, and honestly? it's giving "rescue mission at 3am" energy. let's get into it ✨

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🌸 NAME 🌸

nilfs_salvage_orphan_logs — the function that rescues orphan logs, aka logs that got written after the latest checkpoint. bestie they're literally stranded out there 😭 we're going back for them 💅

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🦋 SYNOPSIS 🦋

int nilfs_salvage_orphan_logs(struct the_nilfs *nilfs, struct super_block *sb, struct nilfs_recovery_info *ri);

that's the whole signature, no cap. three args in, an int out. simple. iconic. 👑

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🎀 ARGUMENTS 🎀

• nilfs — your nilfs object. the main character, obviously 🫶
• sb — the super block instance. it's that girl and it knows it 💅
• ri — a pointer to a struct nilfs_recovery_info where the search results get stored. so like. this is where we write down what we found 📝✨

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⭐ RETURN ⭐

you get 0 on success 🎉 — and on failure you get one of these negative error codes:

• -EINVAL — inconsistent filesystem state. the vibes are off, the fs is a mess 🙈
• -EIO — I/O error. hardware said "not today" 💀
• -ENOMEM — insufficient memory available. bestie is out of RAM, it's so over 😭
• -ENOSPC — no space left on device. note: only in a panic state, so like, extra dramatic circumstances 🔥
• -ERESTARTSYS — interrupted. someone hit Ctrl+C on our whole moment ✋

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🔥 SEE ALSO 🔥

the kernel file ./fs/nilfs2/recovery.c (the source of truth, go read it fr fr) plus this whole friend group of sibling functions:

• nilfs_compute_checksum(9)
• nilfs_read_super_root_block(9)
• nilfs_read_log_header(9)
• nilfs_validate_log(9)
• nilfs_read_summary_info(9)
• nilfs_skip_summary_info(9)
• nilfs_scan_dsync_log(9)
• nilfs_do_roll_forward(9)
• nilfs_abort_roll_forward(9)
• nilfs_search_super_root(9)

they're all in their own manpages. go say hi 💖

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heads up bestie: these logs are orphans — written after the latest checkpoint — so this is genuinely the recovery path. treat it with respect, not like a casual little call 💜

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okay that's the page!! 🌈 sourced from ./fs/nilfs2, dated October 2026 — yes, the future, don't question the timeline 🕰️✨ mwah, go salvage those logs, you got this 👑💅🎀