STRUCT LUO_FLB_HEADER_SER(9)

💖 struct luo_flb_header_ser(9) 💖

okay bestie, welcome to the struct luo_flb_header_ser page — it lives in the Kernel API Manual and it's literally the header for the serialized FLB data block. no cap, that's the whole vibe. 🎀

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✨ NAME ✨

struct luo_flb_header_ser — the header for the serialized FLB data block. that's it, that's the gig. 💅

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🌸 SYNOPSIS 🌸

struct luo_flb_header_ser {
    u64 pgcnt;
    u64 count;
 };

look at her. two fields. iconic. 🦋

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🧚 Members 🧚

• pgcnt — the total number of pages occupied by the entire preserved memory region, and yes that includes this very header plus the array of struct luo_flb_ser entries that comes after it. she counts herself, humble queen. 👑
• count — the number of struct luo_flb_ser entries that follow this header in the memory block. so like, how many besties are lined up behind her. 🫶

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⭐ Description ⭐

so where does this struct actually live? it's located at the physical address specified by the flbs_pa in luo_ser. that's the spot. 📍

⚠️ okay important one: if this structure gets modified, LUO_ABI_COMPATIBLE must be updated. not optional, not "later", must. don't do a little sneaky edit and forget, i'm begging 😭

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🌈 SEE ALSO 🌈

• Kernel file ./include/linux/kho/abi/luo.h
• Live Update Orchestrator ABI(9)
• struct luo_ser(9)
• struct luo_file_ser(9)
• struct luo_file_set_ser(9)
• struct luo_session_ser(9)
• struct luo_flb_ser(9)

go read them, i'll wait. 💜

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and that's the page!! this lil gem comes from ./include/linux/kho/abi and it's dated October 2026, signed off as struct luo_flb_header_ser(9). slay, go touch some kernel memory responsibly 🍓✨💖