find_random_bit(9)

💫 find_random_bit(9) 💫

okay bestie, welcome to the Kernel API Manual page for find_random_bit(9) — yes, the manual name is folded in right here because we're doing this cute and correct. 💖 This one is all about finding a set bit at a random position, and honestly? iconic behavior.

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💅 NAME 💅

find_random_bit — find a set bit at random position.

That's the whole vibe: it finds a set bit, and it picks the position at random. no cap. ✨

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🎀 SYNOPSIS 🎀

       unsigned long find_random_bit (const unsigned long *addr , unsigned long
       size );

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🌸 ARGUMENTS 🌸

• addr — The address to base the search on. this is literally the starting point for the search, bestie. 🫶
• size — The bitmap size in bits. yep, it's measured in bits, not bytes — keep that energy. 💅

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🌈 RETURN 🌈

a position of a random set bit; >= size otherwise.

so you either get a random set bit's position, or you get >= size. that's the return tea. 🍓

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🦋 SEE ALSO 🦋

Kernel file ./lib/find_bit.c — go look at the kernel file, iykyk. 👑

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okay that's the whole page, bestie — source/version is ./lib, dated October 2026, and this iconic entry is find_random_bit(9). 💅✨