ring_buffer_read_finish(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ring_buffer_read_finish(9) — Kernel API Manual ✨

okay so bestie, welcome to the ring_buffer_read_finish(9) page 🎀 — this is the Kernel API Manual entry, and honestly? it's a short one. a little cleanup crew of a function. but we stan a tidy exit, so let's get into it 💖

🌸 NAME 🌸

ring_buffer_read_finish — finish reading the iterator of the buffer 🦋

like, you're done scrolling, bestie. close the tab. wrap it up. ✨

⭐ SYNOPSIS ⭐

void ring_buffer_read_finish (struct ring_buffer_iter *iter );

that's it. that's the whole vibe. no return value, no drama, just void and a pointer 💅

🎀 ARGUMENTS 🎀

  • iter — the iterator you got from ring_buffer_start 🌈 (yes, that one. the one you were just reading from. don't lose it, don't make up a new one, just hand it back 🫶)

👑 DESCRIPTION 👑

okay so here's the tea ☕ — calling this does two (2) things, and both of them are literally just "put your toys away":

  • it re-enables resizing of the buffer 🔥 — like, while you were iterating, resizing was off the table, and now the buffer can be resized again, slay
  • it frees the iterator 💀 — iter is donezo, gone, released. don't touch it after this, not even a little peek 🙈

and that's genuinely the entire function. short king energy 👑

🦋 SEE ALSO 🦋

the whole ring buffer fam lives in the kernel file ./kernel/trace/ring_buffer.c — go say hi to all of them 💜

ngl bestie, the one thing to remember: after ring_buffer_read_finish, that iter is freed. no cap. do not read from it, do not keep it in your bag for later. it's giving "used ticket stub" 🎟️💀

okay that's the page!! mwah 💋 it's from the ./kernel/trace source, dated October 2026, and it's filed under Kernel API Manual — go forth and finish your reads responsibly, bestie 🫶💖✨

📦 where this page comes from