SMP_CACHE_ALIGN(9)

💅 SMP_CACHE_ALIGN(9) — like, the L2 cacheline aligner bestie

okay so welcome to the Kernel API Manual, section 9, and today's main character is SMP_CACHE_ALIGN ✨ This little icon literally aligns a value to the L2 cacheline size and honestly? she's doing the most for us. 🎀

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🌸 NAME 🌸

SMP_CACHE_ALIGN — align a value to the L2 cacheline size 🦋

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✨ SYNOPSIS ✨

SMP_CACHE_ALIGN (x );

that's it. that's the whole vibe. no cap. 💅

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🎀 ARGUMENTS 🎀

• x — the value to align. that's her. she's the one getting aligned. 🫶

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💖 DESCRIPTION 💖

okay so listen bestie, on some architectures, the L2 ("SMP") CL size is actually bigger than L1 😭 and sometimes, this needs to be accounted. that's it. that's the whole reason she exists. lowkey iconic behavior. 🔥

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⭐ RETURN ⭐

the aligned value. slayed. returned. periodt. 👑

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🌈 SEE ALSO 🌈

• Kernel file ./include/linux/cache.h
• __cacheline_group_begin_aligned(9)
• __cacheline_group_end_aligned(9)

go read those too, iykyk 💜

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and that's the whole page bestie!! this one comes at you from ./include/linux and she's dated October 2026 🗓️💫 ty for reading, mwah 🧚💖