__release_region(9)

📦 version 7.3.1, in nixpkgs unstable

💖 __release_region — the Kernel API Manual girlie is BACK

okay so bestie, welcome to __release_region(9) from the Kernel API Manual ✨ this is the little function that lets go of a resource region you already snagged. freeing arc, periodt 🎀

🌸 NAME 🌸

__release_region — release a previously reserved resource region 🫶

like, you reserved it, now you're un-reserving it. character development fr fr 💅

✨ SYNOPSIS ✨

void __release_region (struct resource *parent , resource_size_t start ,
       resource_size_t n );

returns nothing, void, no notes, she just does the thing 💀

🦋 ARGUMENTS 🦋

  • parent — the parent resource descriptor 👑 the big boss resource this region lives under
  • start — the resource start address 📍 where the region begins
  • n — the resource region size 🍓 how big it is, number-wise

🔥 DESCRIPTION 🔥

so the described resource region must match a currently busy region. that's the vibe check ✅ if it doesn't line up with something that's actually busy right now, that is not it.

no cap, that's the whole rule. the region you're describing has to correspond to a region that's currently busy — match it up or it's giving mismatch 😭

🌈 SEE ALSO 🌈

Kernel file ./kernel/resource.c 📁 and literally the whole resource-management friend group:

iykyk 🧚💜

ngl bestie, the one thing to remember is that "must match a currently busy region" line — that's the whole assignment, don't sleep on it 🙈

okay that's the page!! this iconic little entry lives in ./kernel 📂 and it's dated October 2026 🗓️ — yes, future girlie behavior, we love to see it. mwah, study hard, slay the kernel 💅💖🎀

📦 where this page comes from