sg_dma_mark_swiotlb(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sg_dma_mark_swiotlb(9) — or, the kernel API manual, group-chat edition 🎀

okay so bestie, you're in the Kernel API Manual and today's main character is sg_dma_mark_swiotlb(9). she's a small function with a big job and honestly? iconic.

✨ NAME ✨

sg_dma_mark_swiotlb — the girl who marks the scatterlist for SWIOTLB bouncing 🦋

🌸 SYNOPSIS 🌸

void sg_dma_mark_swiotlb (struct scatterlist *sg );

literally just that. one function, one pointer, zero return value. no cap. 💅

🎀 ARGUMENTS 🎀

  • sg — the SG entry in question 👑 your scatterlist bestie that's getting marked.

💖 DESCRIPTION 💖

so here's the vibe check: this marks a scatterlist for SWIOTLB bounce. that's the whole thing, that's the assignment. 🫶

but listen — not all SG entries may be bounced. not everyone gets to bounce, and that's just how it is. 🙈 lowkey important detail, don't forget it.

also yes, the original says "Marks a a scatterlist" and we're keeping that energy. typos are human, we love her anyway 💀

🌈 SEE ALSO 🌈

the whole friend group, fr fr — they all live in the kernel file ./include/linux/scatterlist.h:

that's twenty-two entries. twenty-two!! the way this header file has more lore than a streaming series 😭🔥

mwah 💋 that's the page, bestie. this whole thing lives in ./include/linux, and the manual itself is dated October 2026. yes, 2026. she's future-forward like that ⭐🧚💜

📦 where this page comes from