to_drm_gpusvm_range(9)

💅 to_drm_gpusvm_range(9) 💅

okay so this is a page from the Kernel API Manual and honestly? it's a tiny little glow-up of a function and i'm obsessed 🎀 it lives in the kernel's DRM/gpusvm corner and it's basically the "who's your real parent" moment for an rbtree node. iykyk.

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✨ NAME ✨

to_drm_gpusvm_range — retrieve the container struct for a given rbtree node 🦋

like, the node is in the struct bestie, this is how you get back out to the whole thing.

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🌸 SYNOPSIS 🌸

struct drm_gpusvm_range * to_drm_gpusvm_range (struct rb_node *node );

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💖 ARGUMENTS 💖

• node — a pointer to the rbtree node embedded within a drm_gpusvm_range struct. yes, embedded, as in it's living inside the bigger struct, not off on its own little main character journey 💀

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⭐ RETURN ⭐

A pointer to the containing drm_gpusvm_range structure. slay. that's the whole bit — you hand it the inner node, it hands you back the outer struct 🫶

ngl it's giving "container_of energy" but we're not gonna put words in the manpage's mouth 💅

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🌈 SEE ALSO 🌈

bestie the reading list is LONG but every single one of these is required viewing, no skipping 🔥

• Kernel file ./drivers/gpu/drm/drm_gpusvm.c
• Overview(9)
• Locking(9)
• Partial Unmapping of Ranges(9)
• Examples(9)
• npages_in_range(9)
• drm_gpusvm_notifier_find(9)
• drm_gpusvm_range_find(9)
• drm_gpusvm_notifier_invalidate(9)
• drm_gpusvm_init(9)
• to_drm_gpusvm_notifier(9)
• drm_gpusvm_notifier_insert(9)
• drm_gpusvm_notifier_remove(9)
• drm_gpusvm_fini(9)
• drm_gpusvm_notifier_alloc(9)
• drm_gpusvm_notifier_free(9)
• drm_gpusvm_range_insert(9)
• __drm_gpusvm_range_remove(9)
• drm_gpusvm_range_alloc(9)
• drm_gpusvm_hmm_pfn_to_order(9)
• drm_gpusvm_check_pages(9)
• drm_gpusvm_scan_mm(9)
• drm_gpusvm_range_chunk_size(9)
• drm_gpusvm_driver_lock_held(9)
• drm_gpusvm_find_vma_start(9)
• drm_gpusvm_range_find_or_insert(9)
• __drm_gpusvm_unmap_pages(9)
• __drm_gpusvm_free_pages(9)
• drm_gpusvm_free_pages(9)
• drm_gpusvm_range_remove(9)
• drm_gpusvm_range_get(9)
• drm_gpusvm_range_destroy(9)
• drm_gpusvm_range_put(9)
• drm_gpusvm_pages_valid(9)
• drm_gpusvm_pages_valid_unlocked(9)
• drm_gpusvm_get_pages(9)
• drm_gpusvm_unmap_pages(9)
• drm_gpusvm_range_evict(9)
• drm_gpusvm_has_mapping(9)
• drm_gpusvm_range_set_unmapped(9)

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okay that's the whole page, short and sweet, icon behaviour only 💜 this cutie came out of ./drivers/gpu/drm and it's dated October 2026, and the name on the birth certificate is to_drm_gpusvm_range(9) — periodt. 🧚‍♀️✨🍓