hlist_for_ea..._rcu_notrace(9)

📦 version 7.3.1, in nixpkgs unstable

👑 hlist_for_ea..._rcu_notrace(9) — Kernel API Manual 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one's about hlist_for_ea..._rcu_notrace and honestly? she's a niche icon and we stan 🎀

🌸 NAME 🌸

hlist_for_each_entry_rcu_notrace — iterate over rcu list of given type (for tracing)

like yes, that's literally her whole job: walk an RCU list, but in a tracing-safe way 🦋

✨ SYNOPSIS ✨

hlist_for_each_entry_rcu_notrace (pos , head , member );

(the spacing is giving exactly what the original gives — do not touch it 🙈)

🫶 ARGUMENTS 🫶

  • pos — the type * to use as a loop cursor. your little main-character pointer that walks the list 💫
  • head — the head for your list. the starting point, the origin story 👑
  • member — the name of the hlist_node within the struct. that's the field our girl looks at to keep moving 🌈

💖 DESCRIPTION 💖

This list-traversal primitive may safely run concurrently with the _rcu list-mutation primitives such as hlist_add_head_rcu as long as the traversal is guarded by rcu_read_lock.

⚠️ note that "as long as the traversal is guarded by rcu_read_lock" — that guard is not optional, bestie, it's the whole vibe check 🔥 no lock, no safety, periodt.

This is the same as hlist_for_each_entry_rcu except that it does not do any RCU debugging or tracing.

so like… same girl, but she skipped the debugging-and-tracing accessories 💅 she's the lowkey version, fr fr. that's the entire difference, no cap.

🦋 SEE ALSO 🦋

Kernel file ./include/linux/rculist.h — and here's the whole friend group, all in (9), all iconic in their own way 🌸

🌟 ok that's the page!! sourced from ./include/linux, dated October 2026, filed under hlist_for_ea..._rcu_notrace(9) — mwah, go read your RCU docs responsibly bestie, ily, bye 💜🎀✨
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