rhashtable_walk_next(9)

💅 rhashtable_walk_next(9)

okay so bestie, this one's straight out of the Kernel API Manual and it's literally the little goblin that hands you the next thing in your hash table walk 🎀 like, the whole vibe is "gimme the next object and also move the iterator forward while you're at it." no cap, that's the entire job description.

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✨ NAME ✨

rhashtable_walk_next — return the next object and advance the iterator 🦋 yes she does both, she's an overachiever.

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🎀 SYNOPSIS 🎀

void * rhashtable_walk_next (struct rhashtable_iter *iter );

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🦋 ARGUMENTS 🦋

• iter — the hash table iterator 💫 your little walk-buddy, your main character of this function.

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🌸 DESCRIPTION 🌸

okay so first thing first, and I need you to hear me on this one:

🚨 you must call rhashtable_walk_stop when you are finished with the walk. like, you HAVE to. not optional. not a suggestion. do not leave her hanging. 😭

and then the actual returns:

• it returns the next object — slay, that's the good stuff 💖
• or it returns NULL when the end of the table is reached — that's your little "we're done here, bestie" signal 👑

but wait, there's a plot twist 🫢 — it also returns -EAGAIN if a resize event occurred. and before you spiral: the iterator will rewind back to the beginning, and you may continue to use it. so it's giving "plot reset, not cancellation." the walk is still on fr fr 💅

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🫶 SEE ALSO 🫶

• Kernel file ./lib/rhashtable.c 📁 (the source, the mothership)
• rhashtable_shrink(9)
• rhashtable_next_key(9)
• rhashtable_walk_enter(9)
• rhashtable_walk_exit(9)
• rhashtable_walk_start_check(9)
• __rhashtable_walk_find_next(9)
• rhashtable_walk_peek(9)
• rhashtable_walk_stop(9) ← the one you literally cannot forget, bestie 🫵
• rhashtable_free_and_destroy(9)

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and that's the page!! 🌈 brought to you from ./lib, dated October 2026, and it's rhashtable_walk_next(9) — go walk that table, queen 👑💜