STRUCT P9_WSTAT(9)

🦋 struct p9_wstat(9) — like, the whole kernel API manual vibe 🦋

okay bestie, buckle up — this is a page straight out of the Kernel API Manual, and it's all about struct p9_wstat, aka file system metadata information. yes. the ~vibes~ of a file, but make it 9p. 💅

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✨ SYNOPSIS ✨

struct p9_wstat {
    u16 size;
    u16 type;
    u32 dev;
    struct p9_qid qid;
    u32 mode;
    u32 atime;
    u32 mtime;
    u64 length;
    const char *name;
    const char *uid;
    const char *gid;
    const char *muid;
    char *extension;
    kuid_t n_uid;
    kgid_t n_gid;
    kuid_t n_muid;
 };

like… look at her. iconic struct. no notes. 🫶

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🎀 Members 🎀

time to meet the cast, one field at a time. every single one of them matters, so no skipping, bestie:

• size — the length prefix for this stat structure instance. she's the little header that says how long the rest is. 💖
• type — the type of the server (equivalent to a major number). lowkey the server's whole genre.
• dev — the sub-type of the server (equivalent to a minor number). the genre's subgenre, iykyk.
• qid — a unique id from the server, of type p9_qid. her little fingerprint. ⭐
• mode — Plan 9 format permissions, of type p9_perm_t. who's allowed to do what, Plan 9 style.
• atime — Last access/read time. when somebody last looked at it. 👀
• mtime — Last modify/write time. when somebody last touched it. ✍️
• length — file length. how much file is in the file.
• name — last element of path (aka filename). the main character part of the path. 👑
• uid — owner name. the name of the one who owns it.
• gid — group owner. the group that owns it.
• muid — last modifier. the one who touched it most recently.
• extension — area used to encode extended UNIX support. the little pocket for extra UNIX-ness. 🧚
• n_uid — numeric user id of owner (part of the 9p2000.u extension). note the .u — that's the extension era, bestie. ✨
• n_gid — numeric group id (part of the 9p2000.u extension). same deal.
• n_muid — numeric user id of laster modifier (part of the 9p2000.u extension). yes, "laster" — that's literally what the page says, I'm not fixing it, I don't make the rules. 💀

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🌸 Description 🌸

ngl this one is short and sweet — the whole description is basically a link drop:

See Also: http://plan9.bell-labs.com/magic/man2html/2/stat

go read it, bestie. that's the lore. 🦋

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🔥 SEE ALSO 🔥

the whole friend group, in order, exactly as listed:

• Kernel file ./include/net/9p/9p.h enum p9_debug_flags(9), enum p9_msg_t(9), enum p9_open_mode_t(9), enum p9_perm_t(9), enum p9_qid_t(9), struct p9_qid(9), struct p9_iattr_dotl(9), struct p9_fcall(9)

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and that's the page, periodt. 💜 this gem lives in ./include/net/9p, and the version stamp says October 2026 — so like, future me is reading this too. slay. 🎀✨🌈