drm_pagemap..._create_devm(9)

✨ drm_pagemap_cache_create_devm — Kernel API Manual ✨

okay so bestie, welcome to the Kernel API Manual, and today's main character is drm_pagemap_cache_create_devm(9) 💅

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🌸 NAME 🌸

drm_pagemap_cache_create_devm — literally just creates a drm_pagemap_cache, that's the whole vibe 🎀

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🦋 SYNOPSIS 🦋

struct drm_pagemap_cache * drm_pagemap_cache_create_devm (struct
       drm_pagemap_shrinker *shrinker );

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💜 ARGUMENTS 💜

• shrinker — a pointer to a struct drm_pagemap_shrinker. that's it, that's the input 🫶

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✨ DESCRIPTION ✨

so what this does is create a device-managed drm_pagemap cache 👑 and the "device-managed" part is the slay here: the cache gets automatically destroyed on struct device removal, no manual cleanup era required. and at that exact moment, any inactive drm_pagemap's get destroyed too. periodt. 💀

bestie note: it's the inactive ones that get destroyed at that point — the manpage says it like that and we're not changing it. 🙈

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🎀 RETURN 🎀

• returns a pointer to a struct drm_pagemap_cache on success 💖
• returns an error pointer on failure 😭

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/drm_pagemap_util.c
• struct drm_pagemap_cache(9)
• struct drm_pagemap_shrinker(9)
• Cache lookup(9)
• drm_pagemap_cache_lock_lookup(9)
• drm_pagemap_cache_unlock_lookup(9)
• drm_pagemap_get_from_cache(9)
• drm_pagemap_cache_set_pagemap(9)
• drm_pagemap_get_from_cache_if_active(9)
• drm_pagemap_shrinker_might_lock(9)
• drm_pagemap_shrinker_add(9)
• drm_pagemap_shrinker_create_devm(9)
• struct drm_pagemap_owner(9)
• drm_pagemap_release_owner(9)
• interconnect_fn(9)
• drm_pagemap_acquire_owner(9)

like, read the whole friend group, iykyk 🧚

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aaand that's the page, bestie 🍓 this lil gem lives in ./drivers/gpu/drm, dated October 2026, and it's page drm_pagemap..._create_devm(9) of the Kernel API Manual — go off, go read the source, mwah 💋💖