nilfs_ioctl_get_fslabel(9)

📦 version 7.3.1, in nixpkgs unstable

💅 nilfs_ioctl_get_fslabel — get the volume name of the file system

okay so picture this: it's a kernel API manual page, section 9, and it's literally called nilfs_ioctl_get_fslabel(9). bestie, this is the little function whose whole entire job is grabbing the volume name of a nilfs file system and handing it over to userspace. that's it. that's the gig. and it does it flawlessly, no notes. 🎀

✨ SYNOPSIS ✨

int nilfs_ioctl_get_fslabel (struct super_block *sb , void __user *argp
);

like yes, that's the whole signature, she's compact and she's iconic 🫶

🌸 ARGUMENTS 🌸

  • sb — the super block instance 💖 this is the file system's main character, the one whose volume name we're here to snatch
  • argp — pointer to userspace memory where the volume name should be stored ✨ so like, this is the destination, the drop-off spot, the place the name is gonna live once we're done

⭐ RETURN ⭐

  • 0 on success — slay, we did it, the name is delivered 👑
  • -EFAULT if copying to userspace memory fails 😭 like the copy just didn't land, tragic, but it's a real error and that's what you get back

🦋 SEE ALSO 🦋

the whole nilfs2 friend group, no cap, everyone's here:

and yeah, if you clocked that nilfs_ioctl_set_fslabel(9) sitting at the end of that list — that's her counterpart, the setter to this getter. iykyk 💅

okay that's the whole page, go forth and read your volume names 🌈

source on this one is ./fs/nilfs2, dated October 2026, and the page answers to nilfs_ioctl_get_fslabel(9) — mwah, bye bestie 💜

📦 where this page comes from