round_up(9)

🌸 NAME 🌸

round_up — round up to next specified power of 2

Okay bestie, this is round_up(9) from the Kernel API Manual, and it's here to make your rounding moment iconic ✨

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✨ SYNOPSIS ✨

round_up (x , y );

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🎀 ARGUMENTS 🎀

• x — the value to round, literally the main character here 💅
• y — the multiple to round up to, and it must be a power of 2. No cap, this is a hard requirement 🫶

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🦋 DESCRIPTION 🦋

So round_up rounds x up to the next multiple of y — and y has to be a power of 2, periodt. 💖

If you need to do arbitrary rounding up instead, the page says to use roundup below. Slay. ✨

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🌈 SEE ALSO 🌈

Go give these icons a little look 👑:

• Kernel file ./include/linux/math.h
• round_down(9)
• DIV_ROUND_UP_POW2(9)
• roundup(9)
• rounddown(9)
• abs(9)
• abs_diff(9)
• reciprocal_scale(9)

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mwah 💋 source/version footer energy: ./include/linux · October 2026 · round_up(9) — and that's the vibe, bestie 🎀