nilfs_cpfile_get_stat(9)

📦 version 7.3.1, in nixpkgs unstable

✨ nilfs_cpfile_get_stat ✨

okay so bestie, welcome to the nilfs_cpfile_get_stat page 💅 this one lives in the Kernel API Manual (section 9), and it's genuinely one of the shorter reads on the shelf, so grab a boba and let's go 🧋✨

🌸 NAME 🌸

nilfs_cpfile_get_stat — get checkpoint statistics 📊

like, the checkpoint stats. the receipts. the numbers. okay? 💖

🦋 SYNOPSIS 🦋

int nilfs_cpfile_get_stat (struct inode *cpfile , struct nilfs_cpstat
*cpstat );

that's the whole signature, no cap — two args in, an int out 🔥

🎀 ARGUMENTS 🎀

  • cpfile — inode of checkpoint file 📁 (yes, the checkpoint file, that's the one)
  • cpstat — pointer to a structure of checkpoint statistics 📈 (this is struct nilfs_cpstat, and it's where the good stuff lands)

💜 DESCRIPTION 💜

so nilfs_cpfile_get_stat returns information about checkpoints 🎯

the checkpoint statistics get stored in the location pointed to by cpstat — that's it, that's the whole vibe. you hand it the inode and a place to put the stats, it fills that place in. iconic behavior honestly 👑

🌈 RETURN 🌈

0 on success 🎉 — or one of the following negative error codes on failure, and yes they're negative, that's the whole point:

  • -EIO — I/O error (including metadata corruption) 💀 that metadata was not slaying
  • -ENOMEM — insufficient memory available 😭 the kernel ran out of room, tragic

🫶 SEE ALSO 🫶

Kernel file ./fs/nilfs2/cpfile.c — the source, the mothership, the birthplace 🌱

and the whole cpfile friend group, in this exact order:

ngl bestie, cpstat is a pointer — if you pass it something cursed that isn't a real struct nilfs_cpstat, that's on you, not on the manpage 🙈

and that's the tea ☕ this page ships from ./fs/nilfs2, dated October 2026 🗓️ — it's nilfs_cpfile_get_stat(9) and it ate, periodt 💅✨🦋

📦 where this page comes from