pcl_alloc_call(9)

💅 pcl_alloc_call(9) 💅

okay so bestie, you're reading the Kernel API Manual page for pcl_alloc_call(9), and we are gonna get you comfy with it. 💖

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✨ NAME ✨

pcl_alloc_call - Construct a parsed chunk list for the Call body

🛠️ SYNOPSIS 🛠️

bool pcl_alloc_call (struct svc_rdma_recv_ctxt *rctxt , __be32 *p );

🌸 ARGUMENTS 🌸

• rctxt — Ingress receive context. That's the ingress receive context, periodt.
• p — Start of an un-decoded Read list. Yep, literally the start of the un-decoded Read list.

🧚 DESCRIPTION 🧚

Assumptions, bestie:

• The incoming Read list has already been sanity checked. Like, someone already gave it the vibe check.
• cl_count is already set to the number of segments in the un-decoded list.
• The list might not be in order by position. Not me expecting it to be sorted — because it might not be, fr fr.

Return values:

• true: Parsed chunk list was successfully constructed, and cl_count is updated to be the number of chunks (ie. unique positions) in the Read list. It ate, honestly. 👑
• false: Memory allocation failed. 😭

📚 SEE ALSO 📚

Kernel file ./net/sunrpc/xprtrdma/svc_rdma_pcl.c, plus the whole friend group:

• pcl_free(9)
• pcl_alloc_read(9)
• pcl_alloc_write(9)
• pcl_check_read_chunk_positions(9)
• pcl_process_nonpayloads(9)

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mwah 💋 — source/version ./net/sunrpc/xprtrdma, date October 2026, title pcl_alloc_call(9). Bye bestie! 🫶