drm_gem_object_handle_free(9)
β¨ drm_gem_object_handle_free β¨
okay so this is a page from the Kernel API Manual bestie, and today's main character is drm_gem_object_handle_free β the little cleanup gremlin that releases all the resources tied to userspace handles π
πΈ NAME πΈ
drm_gem_object_handle_free β release resources bound to userspace handles π
π¦ SYNOPSIS π¦
void drm_gem_object_handle_free (struct drm_gem_object *obj );
π ARGUMENTS π
objβ the GEM object you're cleaning up. that's the one, bestie π«Ά
β¨ DESCRIPTION β¨
So this one gets called after the last handle to the object has been closed β like, the very last one, no cap π
What it does: it removes any name for the object. that's the whole job. slay.
β οΈ but listen β this must be called before drm_gem_object_free, or else we'll be touching freed memory. and that is not the vibe. π seriously, do not fumble the ordering here.
π SEE ALSO π
Kernel file ./drivers/gpu/drm/drm_gem.c, plus the whole extended friend group π:
drm_gem_huge_mnt_create(9)drm_gem_init(9)drm_gem_object_init(9)drm_gem_private_object_init(9)drm_gem_private_object_fini(9)drm_gem_object_handle_get_if_exists_unlocked(9)drm_gem_object_handle_put_unlocked(9)drm_gem_handle_delete(9)drm_gem_dumb_map_offset(9)drm_gem_handle_create_tail(9)drm_gem_handle_create(9)drm_gem_free_mmap_offset(9)drm_gem_create_mmap_offset_size(9)drm_gem_create_mmap_offset(9)drm_gem_get_pages(9)drm_gem_put_pages(9)drm_gem_objects_lookup(9)drm_gem_object_lookup(9)drm_gem_dma_resv_wait(9)drm_gem_open(9)drm_gem_release(9)drm_gem_object_release(9)drm_gem_object_free(9)drm_gem_vm_open(9)drm_gem_vm_close(9)drm_gem_mmap_obj(9)drm_gem_get_unmapped_area(9)drm_gem_mmap(9)drm_gem_lock_reservations(9)drm_gem_lru_init(9)drm_gem_lru_remove(9)drm_gem_lru_move_tail_locked(9)drm_gem_lru_move_tail(9)drm_gem_lru_scan(9)drm_gem_evict_locked(9)
and that's the whole page, bestie π§π this one ships from source/version ./drivers/gpu/drm, dated October 2026, and it's part of the Kernel API Manual β go read the whole GEM saga, it's giving lore π₯π
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms