drm_mm_insert_node(9)

💖 drm_mm_insert_node(9) 💖

okay bestie, welcome to the Kernel API Manual — this is drm_mm_insert_node(9), and it's giving "find a hole, fill a hole" in the most iconic way possible 🕳️✨

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✨ NAME ✨

drm_mm_insert_node — literally just search for space and insert @node 🎀

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🌸 SYNOPSIS 🌸

int drm_mm_insert_node (struct drm_mm *mm , struct drm_mm_node *node ,
       u64 size );

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🦋 ARGUMENTS 🦋

• mm — the drm_mm you're allocating from, bestie. that's the whole pool 🏊
• node — a preallocated node you're inserting. yes, *pre*allocated, we're not out here creating chaos 👑
• size — how big the allocation is, fr fr 📏

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💅 DESCRIPTION 💅

So this is the simplified version of drm_mm_insert_node_generic, with color set to 0. lowkey the chill one of the family 🌈

🚨 the preallocated node must be cleared to 0. not a vibe check you can skip — clear it, periodt 💀

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⭐ RETURN ⭐

• 0 on success 🎉 slay
• -ENOSPC if there's no suitable hole 😭 it's giving "no room at the inn"

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🧚 SEE ALSO 🧚

Kernel file ./include/drm/drm_mm.h — and the whole friend group 💜

• enum drm_mm_insert_mode(9)
• struct drm_mm_node(9)
• struct drm_mm(9)
• struct drm_mm_scan(9)
• drm_mm_node_allocated(9)
• drm_mm_initialized(9)
• drm_mm_hole_follows(9)
• drm_mm_hole_node_start(9)
• drm_mm_hole_node_end(9)
• drm_mm_nodes(9)
• drm_mm_for_each_node(9)
• drm_mm_for_each_node_safe(9)
• drm_mm_for_each_hole(9)
• drm_mm_insert_node_generic(9)
• drm_mm_clean(9)
• drm_mm_for_each_node_in_range(9)
• drm_mm_scan_init(9)

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and that's the page, bestie 🫶 this lil masterpiece lives in ./include/drm and it's stamped October 2026 — go forth and insert your nodes, you absolute main character 💖🌸👑