mraid_mm_attach_buf(9)

📦 version 7.3.1, in nixpkgs unstable

💅 mraid_mm_attach_buf(9) — like, the kernel API manual bestie ✨

okay so we're diving into mraid_mm_attach_buf from the Kernel API Manual today and honestly? it's giving "small function, big responsibility" 🎀

🌸 NAME 🌸

mraid_mm_attach_buf — attach a free dma buffer for required size 💖 lowkey exactly what it says on the tin, no cap

✨ SYNOPSIS ✨

int mraid_mm_attach_buf (mraid_mmadp_t *adp , uioc_t *kioc , int xferlen
);

like yes she returns an int, and yes she takes three things 🫶

🦋 ARGUMENTS 🦋

  • adp — the adapter softstate, aka the whole vibe of the adapter itself 💫
  • kioc — the kioc that the buffer needs to be attached to, she's the main character here fr
  • xferlen — required length for buffer, aka how much room we're asking for 🙈

💀 DESCRIPTION 💀

so here's the tea ☕ first we search for a pool with the smallest buffer that is >= xferlen. iconic, efficient, we love her 💅

but wait — if that pool has no free buffer, we don't panic, we just try for the next bigger size 😌✨

and if none is available? bestie we improvise: we will try to allocate the smallest buffer that is >= xferlen and attach it the pool. periodt 🎀 no buffer left behind, that's the energy 🌈

🔥 SEE ALSO 🔥

kernel file ./drivers/scsi/megaraid/megaraid_mm.c and honestly the whole megaraid family reunion 👑:

aaaaand that's the whole page bestie!! 🧚 source is ./drivers/scsi/megaraid, dated October 2026 — go forth and attach those buffers, ily, bye 💜🦋🍓

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