ida_free(9)

✨ ida_free(9) ✨

okay bestie, so this is a page from the Kernel API Manual and honestly? it's giving "tiny function, huge responsibility" 💅

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🌸 NAME 🌸

ida_free — Release an allocated ID. that's it. that's the whole vibe. you had an ID, now you don't 🎀

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🦋 SYNOPSIS 🦋

void ida_free (struct ida *ida , unsigned int id );

literally just two args, no drama, no return value, no cap ✨

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💖 ARGUMENTS 💖

• ida — the IDA handle. your main character struct, the whole reason you're here 🫶
• id — a Previously allocated ID. key word: previously. it already existed, you're just handing it back, no take-backsies energy 💀

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🔥 CONTEXT 🔥

Any context. any. literally any 💅 and here's the slay part: it is safe to call this function without locking in your code. no mutex arc, no lock arc, just vibes 😭👑

lowkey iconic of it tbh. but like, still read the rest of the docs before you go feral in there 🧚

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🌈 SEE ALSO 🌈

all the sisters and cousins, all from the Kernel file ./lib/idr.c:

• idr_alloc_u32(9)
• idr_alloc(9)
• idr_alloc_cyclic(9)
• idr_remove(9)
• idr_find(9)
• idr_for_each(9)
• idr_get_next_ul(9)
• idr_get_next(9)
• idr_replace(9)
• IDA description(9)
• ida_alloc_range(9)
• ida_find_first_range(9)
• ida_destroy(9)

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that's the whole page bestie, go free those IDs responsibly 💜🦋⭐

anyway this one's from the ./lib corner of the kernel docs, dated October 2026 — mwah, love u, bye 👑💖