luo_file_unfreeze(9)

💅 luo_file_unfreeze(9) — Kernel API Manual ✨

okay bestie, we're in the Kernel API Manual and this page is all about luo_file_unfreeze. No cap, it's the cleanup bestie for when a freeze has to be aborted.

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✨ NAME ✨

luo_file_unfreeze — unfreezes all files in a file_set and clear serialization 💖

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🌸 SYNOPSIS 🌸

void luo_file_unfreeze (struct luo_file_set *file_set , struct
luo_file_set_ser *file_set_ser );

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🎀 ARGUMENTS 🎀

• file_set — the file_set whose files are to be unfrozen. It's giving "these are the files we're rescuing from the freeze vibe" 🫶
• file_set_ser — serialized file_set. The serialized one, periodt.

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💖 DESCRIPTION 💖

This function rolls back the state of all files in a file_set after the freeze phase has begun but must be aborted. It's literally the counterpart to luo_file_freeze. Think "we started freezing, nope, abort, put it back" energy 🔥

It invokes the __luo_file_unfreeze helper with a NULL argument, and that NULL signals the helper to iterate through all files in the file_set and call their respective .unfreeze handler callbacks. The way it just loops through and calls every .unfreeze callback is highkey iconic, ngl 💅

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🦋 CONTEXT 🦋

This is called when the live update is aborted during the reboot syscall, after luo_file_freeze has been called. So yeah: freeze already happened, live update got aborted in the reboot syscall, and this is the unfreeze cleanup moment ⭐

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🔥 SEE ALSO 🔥

• Kernel file ./kernel/liveupdate/luo_file.c
• LUO File Descriptors(9)
• struct luo_file(9)
• luo_preserve_file(9)
• luo_file_unpreserve_files(9)
• luo_file_freeze(9)
• luo_retrieve_file(9)
• luo_file_finish(9)
• luo_file_deserialize(9)
• liveupdate_register_file_handler(9)
• liveupdate_unregister_file_handler(9)

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Signed off from ./kernel/liveupdate, dated October 2026 — stay unfrozen, bestie 🧊💖🫶