folio_matches_swap_entry(9)

💅 folio_matches_swap_entry(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one's a lil function from the kernel that literally just does a vibe check on a folio against a swap entry 🫶 it's short, it's sweet, it's giving "small but mighty", let's go 🎀

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🌸 NAME 🌸

folio_matches_swap_entry — Check if a folio matches a given swap entry. that's it. that's the whole job 💅

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✨ SYNOPSIS ✨

bool folio_matches_swap_entry (const struct folio *folio , swp_entry_t
entry );

like, you hand it a folio and a swap entry, and it tells you if they're a match 👑 genuinely the simplest situationship in the kernel.

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🦋 ARGUMENTS 🦋

• folio — The folio. yes queen, that's the one you're asking about 💖
• entry — The swap entry to check against. this is the one it's being compared to, iykyk 🌈

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🔒 CONTEXT 🔒

no cap, this part matters: the caller should have the folio locked to ensure it's stable and nothing will move it in or out of the swap cache 😭

fr fr please hold the lock, bestie — without it the folio could be out here main character-ing around the swap cache and your answer would be a whole lie 💀

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⭐ RETURN ⭐

true or false. that's the tea 🍓 match or no match, no in-between, periodt.

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🧚 SEE ALSO 🧚

• Kernel file ./mm/swap.h
• swap_cluster_lock(9)

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okay that's the whole page, you ate that 💅 this iconic lil doc lives in ./mm, dated October 2026, and it's brought to you by the Kernel API Manual — go forth and check those folios, bestie 🫶✨🎀