STRUCT NILFS_SUINFO_UPDATE(9)

💅 struct nilfs_suinfo_update(9) — Kernel API Manual, but make it make sense 💅

okay bestie, listen up, because we're doing kernel API manual page energy today and this one is from the Kernel API Manual (yes, that's the manual name, consider it folded in, you're welcome 🌸). This little struct is genuinely iconic — it's the whole "which segment's usage info do you wanna update, and which fields are you actually touching" vibe check.

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✨ NAME ✨

struct nilfs_suinfo_update — segment usage information update 🫶

Like, it's the struct you hand over when you want to say "hey, here's an update to a segment's usage info" and you want everyone to know exactly which parts are real and which are just sitting there chillin'. Lowkey essential, no cap.

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🦋 SYNOPSIS 🦋

struct nilfs_suinfo_update {
    __u64 sup_segnum;
    __u32 sup_flags;
    __u32 sup_reserved;
    struct nilfs_suinfo sup_sui;
 };

Look at her. Four members, zero drama. Main character struct energy, fr fr 💖

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🎀 MEMBERS 🎀

• sup_segnum — the segment number. literally just which segment we're talking about, that's it, that's the whole member ✨
• sup_flags — the flags that tell you which fields are active in sup_sui. this is the vibe check of the struct ngl — it's how the update knows what's actually being updated and what's just along for the ride 👑
• sup_reserved — reserved, necessary for alignment. like yes she's doing nothing visible but she's holding the whole thing together structurally, we stan an underappreciated queen 💅
• sup_sui — segment usage information. the actual payload, the main event, the reason we're all here 🌈

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🔥 SEE ALSO 🔥

Kernel file ./include/uapi/linux/nilfs2_api.h — that's the home base, go read her 🧚

And then the whole friend group, because this struct does not travel alone:

• struct nilfs_cpinfo(9)
• struct nilfs_suinfo(9)
• struct nilfs_cpmode(9)
• struct nilfs_argv(9)
• struct nilfs_period(9)
• struct nilfs_cpstat(9)
• struct nilfs_sustat(9)
• struct nilfs_vinfo(9)
• struct nilfs_vdesc(9)
• struct nilfs_bdesc(9)

squad goals, honestly 😭💜

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no warnings, no bugs, no exit statuses on this one bestie — it's just a struct definition doing her little alignment-preserving thing. enjoy the peace 🍓

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okay and finally, the cute sign-off you asked for: this whole page lives under ./include/uapi/linux, and it's dated October 2026, and it's all about struct nilfs_suinfo_update(9) — so like, bookmark her, screenshot her, send her to the group chat, she's yours now 🎀💖✨