iommu_put_pages_list(9)

💖 iommu_put_pages_list — free a list of pages 💖

okay bestie, so this one lives in the Kernel API Manual (yes, that's the manual we're in, keep up 🫶), and it's genuinely one of the simplest little functions ever. No cap. It frees a whole list of pages in one go. That's the whole vibe. Let's get into it ✨

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✨ SYNOPSIS ✨

void iommu_put_pages_list (struct iommu_pages_list *list );

that's it. that's the function. void return, one argument, zero drama 💅

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🎀 ARGUMENTS 🎀

• list — the list of pages that are getting freed. that's the whole thing. hand it over and it's done 💀

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🦋 DESCRIPTION 🦋

okay so here's the tea: this function frees a list of pages that were allocated by iommu_alloc_pages_node_sz. so it's the cleanup crew, the closing shift, the "we're so done here" moment 🔥

but listen — on return, the passed list is invalid 😭 like, fully cooked. gone. don't touch it. if you're planning to use that list again for literally anything, you must reinit it with IOMMU_PAGES_LIST_INIT first. no cap, this is not optional. it's giving "read the room" energy — the list is dead, treat it like it's dead 🙈

⚠️ bestie please remember: after this call the list is invalid, and you need IOMMU_PAGES_LIST_INIT to bring it back to life if you want to reuse it. don't skip this step, i'm begging 🥺

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🌈 SEE ALSO 🌈

like, go read these next, they're all in the same little family 🧚:

• the kernel file ./drivers/iommu/iommu-pages.c
• iommu_alloc_pages_node_sz(9)
• iommu_free_pages(9)
• iommu_pages_start_incoherent(9)
• iommu_pages_start_incoherent_list(9)
• iommu_pages_stop_incoherent_list(9)
• iommu_pages_free_incoherent(9)

all icons, all in the group chat, all worth a read 👑

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⭐ sign-off ⭐

this page came to you straight out of ./drivers/iommu, dated October 2026, from the Kernel API Manual. slay. go free some pages responsibly 💜🎀