hash_for_each_possible_rcu(9)

💖 hash_for_each_possible_rcu(9) 💖

okay bestie, welcome to the Kernel API Manual — this page is literally hash_for_each_possible_rcu(9), and it's giving iterator with same-bucket, rcu enabled hashtable energy. 💅

🦋 NAME 🦋

hash_for_each_possible_rcu — iterate over all possible objects hashing to the same bucket in an rcu enabled hashtable. no cap, that's the whole vibe check: all possible objects, same bucket, rcu enabled hashtable. ✨

🎀 SYNOPSIS 🎀

hash_for_each_possible_rcu (name , obj , member , key , cond... );

🌸 ARGUMENTS 🌸

• name — the hashtable to iterate. your bucket-list main character 🫶
• obj — the type * to use as a loop cursor for each entry. it's the pointer doing the loop walk, periodt ✨
• member — the name of the hlist_node within the struct. yep, that exact member name 💅
• key — the key of the objects to iterate over. the matching key, bestie 🔑
• cond — variable arguments. literally variable arguments; that's the description, iykyk 🫶

🌈 SEE ALSO 🌈

Kernel file ./include/linux/hashtable.h is the home base. also go say hi to hash_init(9), hash_add(9), hash_add_rcu(9), hash_hashed(9), hash_empty(9), hash_del(9), hash_del_rcu(9), hash_for_each(9), hash_for_each_rcu(9), hash_for_each_safe(9), hash_for_each_possible(9), hash_for_each_possible_rcu_notrace(9), and hash_for_each_possible_safe(9). all iconic, all worth a look 🔥

xoxo, signing off from source/version ./include/linux, dated October 2026, and this page is hash_for_each_possible_rcu(9). slay 💖