pack_sg_list(9)

💫 pack_sg_list — hiii welcome to the kernel API manual, bestie (this is pack_sg_list(9), section 9, kernel API vibes only) 💫

✨ NAME ✨

pack_sg_list — packs a scatter gather list straight out of a linear buffer, no cap 🎀

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🌸 SYNOPSIS 🌸

int pack_sg_list (struct scatterlist *sg , int start , int limit , char
*data , int count );

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🦋 ARGUMENTS 🦋

• sg — the scatter/gather list you're packing into, bestie. This is the destination 💅
• start — which segment of the sg_list you're starting at, like picking your entry point 👑
• limit — the maximum segment you're allowed to pack data to. Respect the limit fr fr 🚧
• data — the actual data being packed into the scatter/gather list 🍓
• count — how much data you're packing into the scatter/gather list, quantity matters ✨

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💖 DESCRIPTION 💖

Okay so here's the tea ☕: sg_lists have multiple segments, and those segments are all various sizes — it's giving chaos, honestly. This function will pack arbitrary data into an existing scatter gather list, segmenting the data as necessary within the constraints 💀

So like… you bring the data, it figures out how to slice it across the segments you already have. Iconic behavior, truly 🫶

Not me stressing that this packs into an existing list — you don't get a fresh one, okay? It's working with what's already there 🙈

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🌈 SEE ALSO 🌈

• Kernel file ./net/9p/trans_virtio.c struct virtio_chan(9)
• p9_virtio_close(9)
• req_done(9)
• pack_sg_list_p(9)
• p9_virtio_request(9)
• p9_virtio_zc_request(9)
• p9_virtio_probe(9)
• p9_virtio_create(9)
• p9_virtio_remove(9)

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k bye bestie!! this page is brought to you by ./net/9p, dated October 2026 — go read the whole 9p virtio squad, they ate 💜✨🎀