drm_pagemap_shrinker_add(9)

💖 drm_pagemap_shrinker_add(9) 💖

okay so this page is from the Kernel API Manual, bestie — and it's all about drm_pagemap_shrinker_add. Buckle up, it's a short one but the vibes are immaculate.

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🌸 NAME 🌸

drm_pagemap_shrinker_add — add a drm_pagemap to the shrinker list, or destroy it. periodt.

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✨ SYNOPSIS ✨

void drm_pagemap_shrinker_add (struct drm_pagemap *dpagemap );

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🎀 ARGUMENTS 🎀

• dpagemap — literally the drm_pagemap. that's the whole argument, no cap.

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🦋 DESCRIPTION 🦋

here's the vibe check: if dpagemap is associated with a struct drm_pagemap_cache AND the struct device backing the drm device is still alive, then dpagemap gets added to the struct drm_pagemap_shrinker list of shrinkable drm_pagemaps. slay.

otherwise, it destroys the pagemap directly using drm_pagemap_destroy. yeah, it said what it said.

🚨 important bestie alert: this is an internal function which is not intended to be exposed to drivers. do not come for drivers with this one, fr fr.

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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)
• drm_pagemap_cache_create_devm(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_create_devm(9)
• struct drm_pagemap_owner(9)
• drm_pagemap_release_owner(9)
• interconnect_fn(9)
• drm_pagemap_acquire_owner(9)

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cute little sign-off: source path ./drivers/gpu/drm, date October 2026, and the page is drm_pagemap_shrinker_add(9) — mwah 💋