vchan_get_all_descriptors(9)

okay bestie, welcome to the vchan_get_all_descriptors(9) page from the Kernel API Manual 🌸 — it’s giving descriptor-collection main character energy, and it’s lowkey important.

✨ NAME ✨

vchan_get_all_descriptors — obtain all submitted and issued descriptors, fr fr 💅

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🎀 SYNOPSIS 🎀

void vchan_get_all_descriptors (struct virt_dma_chan *vc , struct
       list_head *head );

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🦋 ARGUMENTS 🦋

• vc — virtual channel to get descriptors from 🌀
• head — list of descriptors found 📋

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🌸 DESCRIPTION 🌸

bestie, vc.lock must be held by caller 🔒 — this is a hard requirement, not a vibe suggestion.

It removes all submitted and issued descriptors from internal lists, and provides a list of all descriptors found ✨. That’s the whole serve: submitted + issued descriptors get pulled out of the internal lists, and you get a list of all descriptors found. No cap.

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👑 SEE ALSO 👑

Kernel file: ./drivers/dma/virt-dma.h — go read these too, iykyk:

• vchan_tx_prep(9)
• vchan_issue_pending(9)
• vchan_cookie_complete(9)
• vchan_vdesc_fini(9)
• vchan_cyclic_callback(9)
• vchan_terminate_vdesc(9)
• vchan_next_desc(9)
• vchan_synchronize(9)

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bye bestie 🫶 — this cutie is from the ./drivers/dma source/version corner, dated October 2026, and it’s the vchan_get_all_descriptors(9) manual page signing off 💖 periodt.