STRUCT NILFS_SUINFO(9)

🌸 struct nilfs_suinfo(9) 🌸

okay bestie, welcome to the Kernel API Manual 💖 you're literally about to meet struct nilfs_suinfo, which is giving "segment usage information" and nothing less, periodt.

---

✨ NAME ✨

struct nilfs_suinfo — segment usage information 🦋

---

🎀 SYNOPSIS 🎀

here's the whole glow-up, copy it exactly bestie, no typos:

struct nilfs_suinfo {
    __u64 sui_lastmod;
    __u32 sui_nblocks;
    __u32 sui_flags;
 };

like… three fields. short. iconic. main character energy 👑

---

💅 Members 💅

okay so let's meet the squad one by one 🫶

• sui_lastmod — timestamp of last modification ⏰ the "when did u last get changed" of it all.
• sui_nblocks — number of written blocks in segment 🧱 literally how many blocks got written in this segment, fr fr.
• sui_flags — segment usage flags 🚩 the little flag drawer for segment usage.

---

🔥 SEE ALSO 🔥

go read these next, i'm obsessed with this whole little family 🌈 the kernel file lives at ./include/uapi/linux/nilfs2_api.h and the related structs are:

• struct nilfs_cpinfo(9)
• struct nilfs_suinfo_update(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)

---

ngl bestie, this page is short but it ate. read the neighbours, they're all in ./include/uapi/linux too 💀✨

and that's the vibe check for struct nilfs_suinfo(9) — shipped from ./include/uapi/linux, dated October 2026 🌸 mwah, go slay some segment info 🎀🧚💜