vmw_cmdbuf_res_revert(9)

💅 vmw_cmdbuf_res_revert — bestie edition

okay so real talk, this is a page from the Kernel API Manual (kernel docs, but make it cute) and the star of the show is vmw_cmdbuf_res_revert. it's giving "undo button for the GPU" energy and honestly? iconic.

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✨ NAME ✨

vmw_cmdbuf_res_revert — Revert a list of command buffer resource actions 🎀

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🦋 SYNOPSIS 🦋

void vmw_cmdbuf_res_revert (struct list_head *list );

that's it. that's the whole vibe check. no return value, no drama, just vibes and a pointer. 💜

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🌸 ARGUMENTS 🌸

• list — the caller's list of command buffer resource action(s). it's your list, bestie, you bring it, you hand it over, and this function deals with it. 🫶

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🔥 DESCRIPTION 🔥

okay so listen, vmw_cmdbuf_res_revert does exactly one thing and it does it slayfully: it reverts a list of command buffer resource additions or removals. like a little ctrl+z but for a whole list of resource actions. no cap.

when is it called tho? ngl it's the cleanup bestie. it's typically called when the execbuf ioctl call that was triggering these actions failed for some reason, and the command stream was never submitted. 😭 so nothing ever actually went through, and we're just politely walking it all back before anything embarrassing happens. it's giving "we don't talk about that failed ioctl" and the function ate. 💅

lowkey important: this is the revert path, so it's the "that never happened" arc of the execbuf story — the stream never got submitted, so you're undoing the additions/removals that were queued up. ✨

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👑 SEE ALSO 👑

main character energy all around, fr fr — go check out these too:

• Kernel file ./drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c — the actual home of the code, the mothership 🧚
• struct vmw_cmdbuf_res(9)
• struct vmw_cmdbuf_res_manager(9)
• vmw_cmdbuf_res_lookup(9)
• vmw_cmdbuf_res_free(9)
• vmw_cmdbuf_res_commit(9)
• vmw_cmdbuf_res_add(9)
• vmw_cmdbuf_res_remove(9)
• vmw_cmdbuf_res_man_create(9)
• vmw_cmdbuf_res_man_destroy(9)

iykyk 💀 the whole resource-management friend group is right there.

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and that's a wrap bestie!! this page lives under ./drivers/gpu/drm/vmwgfx and the docs are dated October 2026 — so yeah, slightly future-coded, but we love that for them. go forth, revert your lists, stay iconic. 🌈⭐🍓💖