drm_pagemap_zdd_destroy(9)

💅 drm_pagemap_zdd_destroy(9) — the Kernel API Manual page, bestie edition

okay so real talk, this is a page from the Kernel API Manual (section 9, the kernel-API girlies) and it's all about drm_pagemap_zdd_destroy — one tiny function that's lowkey doing the cleanup work behind the scenes. let's get into it 💖

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✨ NAME ✨

drm_pagemap_zdd_destroy — destroy a zdd structure. that's it, that's the vibe: it's the destroy-her era for a zdd 🎀

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✨ SYNOPSIS ✨

void drm_pagemap_zdd_destroy (struct kref *ref );

she takes exactly one thing, returns nothing (void, my beloved no-return icon), and that's the whole signature. periodt.

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🌸 ARGUMENTS 🌸

• ref — pointer to the reference count structure. yep, a struct kref *, the reference count itself. hand her the kref and she knows what to do 🫶

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🦋 DESCRIPTION 🦋

so here's the tea: this function queues the destroy_work of the zdd for asynchronous destruction. like, she doesn't do the destroying right this second — she schedules it, sets it up to happen on its own time. it's giving "i'll handle it later, trust" and honestly? iconic ✨

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💜 SEE ALSO 💜

the whole friend group, fr fr — the drm_pagemap cinematic universe 👑

• kernel file ./drivers/gpu/drm/drm_pagemap.c
• Overview(9)
• Migration(9)
• struct drm_pagemap_zdd(9)
• drm_pagemap_zdd_alloc(9)
• drm_pagemap_zdd_get(9)
• drm_pagemap_zdd_put(9)
• drm_pagemap_migration_unlock_put_folio(9)
• drm_pagemap_migration_unlock_put_pages(9)
• drm_pagemap_get_devmem_page(9)
• drm_pagemap_migrate_map_device_private_pages(9)
• struct drm_pagemap_iova_state(9)
• drm_pagemap_migrate_map_system_pages(9)
• drm_pagemap_migrate_populate_src_pages(9)
• drm_pagemap_migrate_unmap_pages(9)
• struct migrate_range_loc(9)
• drm_pagemap_cpages(9)
• drm_pagemap_migrate_to_devmem(9)
• drm_pagemap_migrate_populate_ram_pfn(9)
• struct drm_pagemap_dev_hold(9)
• drm_pagemap_reinit(9)
• drm_pagemap_init(9)
• drm_pagemap_put(9)
• drm_pagemap_page_get_flags(9)
• drm_pagemap_page_set_flags(9)
• drm_pagemap_retire_migrated_pages(9)
• drm_pagemap_skip_retired_pages(9)
• drm_pagemap_evict_to_ram(9)
• __drm_pagemap_migrate_to_ram(9)
• drm_pagemap_folio_free(9)
• drm_pagemap_migrate_to_ram(9)
• drm_pagemap_pagemap_ops_get(9)
• drm_pagemap_devmem_init(9)
• drm_pagemap_page_to_dpagemap(9)
• drm_pagemap_populate_mm(9)

like i said. the whole friend group. iykyk 💀

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ngl bestie, if you're reading the SEE ALSO list and thinking "that's a lot of pagemap," you're so right and you're also doing amazing. read them in whatever order, no pressure 🌈

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and that's the page!! mwah 💋 this lil number lives under ./drivers/gpu/drm and it's dated October 2026 — so yeah, future-coded, main character energy, catch her then. bye bestie, go destroy some zdd structures (asynchronously, obviously) 🧚‍♀️⭐