STRUCT IOPF_QUEUE(9)

💅 NAME 💅

struct iopf_queue — the IO Page Fault queue, aka the group chat where all your fault-handling drama actually gets scheduled 😭✨

Oh and btw bestie, we're living in the Kernel API Manual today — that's the vibe of this whole page 🫶

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✨ SYNOPSIS ✨

struct iopf_queue {
    struct workqueue_struct *wq;
    struct list_head devices;
    struct mutex lock;
 };

That's the whole struct. Three members. No cap, that's it, and she's iconic for it 💅

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🎀 Members 🎀

• wq — the fault workqueue. this is the actual workqueue that the fault work gets queued onto, like the group chat where the messages actually get posted 🔥
• devices — devices attached to this queue. literally the list of devices that are in this queue's orbit 🦋
• lock — protects the device list. do not touch devices without her, she is the bouncer at the door and she is not letting you in 🙈

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🌈 SEE ALSO 🌈

okay so there is a LOT of lore here, stay with me, these are all sibs of the iommu family tree 🧚 and they all live in the Kernel file ./include/linux/iommu.h:

• struct iommu_fault_page_request(9)
• struct iommu_fault(9)
• enum iommu_page_response_code(9)
• struct iommu_page_response(9)
• struct iommu_resv_region(9)
• struct iommu_iotlb_gather(9)
• struct iommu_dirty_bitmap(9)
• struct iommu_dirty_ops(9)
• struct iommu_user_data(9)
• struct iommu_user_data_array(9)
• __iommu_copy_struct_from_user(9)
• iommu_copy_struct_from_user(9)
• __iommu_copy_struct_from_user_array(9)
• iommu_copy_struct_from_user_array(9)
• iommu_copy_struct_from_full_user_array(9)
• __iommu_copy_struct_to_user(9)
• iommu_copy_struct_to_user(9)
• struct iommu_ops(9)
• struct iommu_domain_ops(9)
• struct iommu_device(9)
• struct iommu_fault_param(9)
• struct dev_iommu(9)
• iommu_iotlb_gather_is_disjoint(9)
• iommu_iotlb_gather_add_range(9)
• iommu_iotlb_gather_add_page(9)
• struct iommu_fwspec(9)
• struct iommu_sva(9)
• iommu_map_sgtable(9)

go read them. all of them. it's giving study group energy 📚💜

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okay and that's the whole page bestie, no warnings, no exit statuses, nobody's getting hurt today 🫶

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kisses, this page came straight out of the Kernel file at ./include/linux 💖 dated October 2026, and it's all about struct iopf_queue(9) — slay, periodt, bye 🎀✨🌸