drm_pagemap_zdd_alloc(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_pagemap_zdd_alloc(9)

okay so bestie, welcome to the Kernel API Manual — this is the page for drm_pagemap_zdd_alloc(9) and it's honestly giving "tiny function, big responsibilities" energy ✨

🌸 NAME 🌸

drm_pagemap_zdd_alloc — allocate a zdd structure. that's it. that's the whole name section. short king 🫶

✨ SYNOPSIS ✨

struct drm_pagemap_zdd * drm_pagemap_zdd_alloc (struct drm_pagemap
*dpagemap );

like literally just hand it a dpagemap and it gives you back a struct drm_pagemap_zdd * — iconic behavior ngl 💅

🎀 ARGUMENTS 🎀

  • dpagemap — pointer to the underlying struct drm_pagemap. that's the one and only thing you're passing in, bestie, so don't overthink it 🦋

💖 DESCRIPTION 💖

so what this function actually does: it allocates and initializes a brand-new zdd structure 🔥

like, it's not just handing you raw memory and dipping — no ma'am. it sets up the reference count and initializes the destroy work. main character energy fr fr 👑

think of it as the glow-up phase where the struct gets its whole personality installed before it goes out into the world 🌈

⭐ RETURN ⭐

  • on success? you get a pointer to the allocated zdd. slay 💅
  • on failure? you get ERR_PTR. and before you ask — yes, that means it does not return NULL for failure, so please check it properly with the right macros, okay? i'm not gonna let you get caught out like that 🙈

🔥 SEE ALSO 🔥

the whole friend group, in order, no cap:

and that's the whole page, bestie 💜 this lil section lives down in ./drivers/gpu/drm, dated October 2026 — so go forth, allocate your zdds, and remember to put them back when you're done 🧚‍♀️🌸

📦 where this page comes from