pvrdma_dealloc_pd(9)

💅 pvrdma_dealloc_pd(9) — from the Kernel API Manual, bestie

okay so picture this: you're deep in the kernel, it's 2am, and you gotta let go of a protection domain. yeah. that's the whole vibe of this page. it's pvrdma_dealloc_pd and honestly? she's lowkey the easiest function in the whole file. no cap.

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🌸 NAME 🌸

pvrdma_dealloc_pd — deallocate protection domain. that's it. that's the girl. she deallocates. she frees the pd. iconic behaviour, no notes 💅

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✨ SYNOPSIS ✨

int pvrdma_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata);

yes the return type is int even though she always returns 0. we don't make the rules, the ABI does. 🫶

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🎀 ARGUMENTS 🎀

• pd — the protection domain that's getting released. say bye bye 👋 this is the main character of the whole call.
• udata — user data, or null when it's a kernel object. so like, either there's userland context attached or there isn't. simple as that. 🙈

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⭐ RETURN ⭐

Always 0. literally always. no error paths, no drama, no surprises. she's a consistent queen 👑✨

fr fr, do not go writing error handling around this one thinking it'll ever hand you a negative number back. it won't. 0 is the whole personality.

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🦋 SEE ALSO 🦋

the kernel file where all this lives, in all her glory:

• ./drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c

and the whole friend group, go say hi to them too:

• pvrdma_query_device(9)
• pvrdma_query_port(9)
• pvrdma_query_gid(9)
• pvrdma_query_pkey(9)
• pvrdma_modify_port(9)
• pvrdma_alloc_ucontext(9)
• pvrdma_dealloc_ucontext(9)
• pvrdma_mmap(9)
• pvrdma_alloc_pd(9)
• pvrdma_create_ah(9)
• pvrdma_destroy_ah(9)

also like. notice pvrdma_alloc_pd(9) sitting right up there next to pvrdma_dealloc_pd(9)? that's her other half. you allocate, you dealloc. balance 🌈🧚

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shoutout to ./drivers/infiniband/hw/vmw_pv... for the source/version creds, and to October 2026 for the date stamp — this page is officially stamped and certified, slay 🍓💜