gfs2_statfs_slow(9)

📦 version 7.3.1, in nixpkgs unstable

✨ gfs2_statfs_slow(9) ✨

okay so this is a page straight out of the Kernel API Manual, bestie — it's gfs2_statfs_slow, and it lives in the GFS2 filesystem code. yes we're in kernel land now. no cap. 🧚

🌸 NAME 🌸

gfs2_statfs_slow — stat a filesystem using asynchronous locking. that's it, that's the whole vibe check. 💅

🎀 SYNOPSIS 🎀

int gfs2_statfs_slow (struct gfs2_sbd *sdp , struct
gfs2_statfs_change_host *sc );

like, that's literally the whole signature. two pointers and an int coming back at you. 🔥

🦋 ARGUMENTS 🦋

  • sdp — the filesystem. yes, the filesystem, she's the main character here. 👑
  • sc — the sc info that will be returned. it goes in empty-ish and comes back filled, iykyk. 🫶

💖 DESCRIPTION 💖

so the way this works: any error (other than a signal) will cause this routine to fall back to the synchronous version. like, if something goes sideways, she just quietly hands things off to the old reliable path. not a signal though — signals don't trigger the fallback, keep that distinction in your head bestie. ⭐

FIXME: This really shouldn't busy wait like this. 😭 — the original authors said it, not me. it's right there in the manpage and I'm not gonna pretend it isn't. not me exposing the kernel's busy-waiting era 💀

🌈 RETURN 🌈

errno — that's it. that's the return value. classic. 🍓

💜 SEE ALSO 💜

kernel file ./fs/gfs2/super.c, plus the whole friend group:

that's the entire group chat, go read them too. 🎀

and that's a wrap, bestie — this little page came from ./fs/gfs2, dated October 2026, so go forth and stat those filesystems (slowly, asynchronously, with the fallback ready) 🦋✨💖

📦 where this page comes from