scx_bpf_exit_bstr(9)

📦 version 7.3.1, in nixpkgs unstable

✨ scx_bpf_exit_bstr ✨

okay bestie, so this one is from the Kernel API Manual and it's literally the "gracefully log off" button for your BPF scheduler 💅

💖 NAME 💖

scx_bpf_exit_bstr — gracefully exit the BPF scheduler, no drama, no crash, just vibes 🦋

🌸 SYNOPSIS 🌸

__bpf_kfunc void scx_bpf_exit_bstr (s64 exit_code , char *fmt ,
       unsigned long long *data , u32 data__sz , const struct bpf_prog_aux *aux
       );

🎀 ARGUMENTS 🎀

  • exit_code — the exit value that gets passed to user space via struct scx_exit_info. it's giving "here's my final answer" energy 👑
  • fmt — the error message format string. your lil note to the world about why you're dipping ✨
  • data — the format string parameters, packaged using the ___bpf_fill macro. iykyk 🫶
  • data__sz — the data len, and it must end in '__sz' for the verifier. not optional, bestie, that's the rule 💀
  • aux — the implicit BPF argument used to access bpf_prog_aux, hidden from BPF progs. it's the main character that doesn't want to be seen 🙈

🦋 DESCRIPTION 🦋

so basically you're telling the kernel "hey, the BPF scheduler wants to exit gracefully" — and then it initiates ops disabling. very polite, very demure, very mindful 🌈

⭐ SEE ALSO ⭐

all the lore lives in the kernel file ./kernel/sched/ext/ext.c and here's the whole friend group, fr fr:

okay and for the lil sign-off: this whole vibe lives in ./kernel/sched/ext, it's the October 2026 era, and the page is literally called scx_bpf_exit_bstr(9) — so run man 9 scx_bpf_exit_bstr when you need to remember how to exit with grace, bestie 💜🎀✨

📦 where this page comes from