ib_dealloc_xrcd_user(9)

💅 ib_dealloc_xrcd_user — the manual page, but make it make sense

okay so bestie, this is a Kernel API Manual entry for ib_dealloc_xrcd_user(9) — like, the whole page, the header is literally the name, we're not doing that twice ✨

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✨ NAME ✨

ib_dealloc_xrcd_user — Deallocates an XRC domain. that's it, that's the whole vibe. it frees an XRC domain. slay 💅

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🌸 SYNOPSIS 🌸

int ib_dealloc_xrcd_user (struct ib_xrcd *xrcd , struct ib_udata *udata
);

so it hands you back an int, and it takes exactly two things: your struct ib_xrcd *xrcd and your struct ib_udata *udata. no cap, that's the whole signature 🫶

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🎀 ARGUMENTS 🎀

• xrcd — The XRC domain to deallocate. like, this is the thing. the whole main character of the function. give it back, it's done 🦋
• udata — Valid user data or NULL for kernel object. so: real user data if there's a user involved, and NULL if it's a kernel object. pick correctly, okay? 🙈

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👑 SEE ALSO 👑

Kernel file ./drivers/infiniband/core/verbs.c — and honestly the friend group here is huge, so let's go through the roster 💖

• __ib_alloc_pd(9)
• ib_dealloc_pd_user(9)
• rdma_copy_ah_attr(9)
• rdma_replace_ah_attr(9)
• rdma_move_ah_attr(9)
• rdma_create_ah(9)
• rdma_create_user_ah(9)
• rdma_move_grh_sgid_attr(9)
• rdma_destroy_ah_attr(9)
• ib_create_srq_user(9)
• ib_create_qp_user(9)
• ib_resolve_eth_dmac(9)
• ib_modify_qp_with_udata(9)
• ib_alloc_mr(9)
• ib_alloc_mr_integrity(9)
• ib_alloc_xrcd_user(9)
• ib_create_wq(9)
• ib_destroy_wq_user(9)
• ib_map_mr_sg_pi(9)
• ib_map_mr_sg(9)
• ib_sg_to_pages(9)
• ib_drain_sq(9)
• ib_drain_rq(9)
• ib_drain_qp(9)
• rdma_alloc_hw_stats_struct(9)
• rdma_free_hw_stats_struct(9)

like, that's the entire group chat. 💀

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ngl, if you're allocating with ib_alloc_xrcd_user(9) (it's right there in the list, iykyk), this is the one that undoes it. periodt.

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🌈 annnnd that's the page, bestie — brought to you by ./drivers/infiniband/core, dated October 2026, in the Kernel API Manual. mwah, go free some domains responsibly 💜🎀