iopt_area_unfill_domains(9)

💖 iopt_area_unfill_domains — the kernel API manual, but make it make sense 💖

okay so bestie, welcome to iopt_area_unfill_domains(9), a kernel API manual page, and honestly? it's a little baddie with one job. let's get into it 🫶

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✨ NAME ✨

iopt_area_unfill_domains — literally just unmaps PFNs from the area's domains. that's it. that's the whole gig. 💅

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🌸 SYNOPSIS 🌸

void iopt_area_unfill_domains (struct iopt_area *area , struct
iopt_pages *pages );

copy it exactly, no notes, she's perfect 😌

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🎀 ARGUMENTS 🎀

• area — the area we're acting on. the main character, fr.
• pages — the pages associated with the area. and bestie, heads up: this is the version where area->pages is NULL. yep. noted. 🙈

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🦋 DESCRIPTION 🦋

so when does this icon get called? during area destruction. 💀 dramatic, i know.

what she does: unmaps the iova's covered by all the area's domains, and releases the PFNs. like a little cleanup crew in a tiny outfit. the way she just unmaps and releases? obsessed. ✨

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🌈 SEE ALSO 🌈

the whole friend group, no cap:

• Kernel file ./drivers/iommu/iommufd/pages.c
• iopt_area_unmap_domain(9)
• iopt_area_unfill_domain(9)
• iopt_area_fill_domain(9)
• iopt_area_fill_domains(9)
• iopt_pages_unfill_xarray(9)
• iopt_pages_fill_from_xarray(9)
• iopt_pages_fill_xarray(9)
• iopt_pages_rw_access(9)
• iopt_area_add_access(9)
• iopt_area_remove_access(9)

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ok and for the sign-off 🧚 this one drops from ./drivers/iommu/iommufd, dated October 2026, and it's iopt_area_unfill_domains(9) the whole way through. slay, periodt, go read the source bestie 💜🍓