rpcrdma_post_recvs(9)

💅 rpcrdma_post_recvs — like, the whole manual page, bestie

okay so this is rpcrdma_post_recvs(9) from the Kernel API Manual, and honestly? it's giving "tiny function, big responsibilities." let me walk you through it 🫶

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✨ NAME ✨

rpcrdma_post_recvs — Refill the Receive Queue 🎀

like, it literally tops up the receive queue. that's the whole vibe. no cap.

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🌸 SYNOPSIS 🌸

void rpcrdma_post_recvs (struct rpcrdma_xprt *r_xprt , int needed );

that's it. that's the signature. she's short, she's sweet, she returns void (iconic behaviour, honestly — no notes) 💅

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🦋 ARGUMENTS 🦋

• r_xprt — the controlling transport instance. think of it as the main character of this whole operation 👑 it's the struct rpcrdma_xprt * that's running the show.
• needed — the current credit grant. an int. this is how many credits you've got rn, and the function is gonna work with that number. slay ✨

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🌈 SEE ALSO 🌈

okay so this is the part where I list all her friends, and there are so many of them, but I'm not skipping a single one because we don't do that here 💖

first up, the kernel file where the magic lives: ./net/sunrpc/xprtrdma/verbs.c 📁

and now the whole squad, in order, exactly as they appear:

• rpcrdma_flush_disconnect(9)
• rpcrdma_wc_send(9)
• rpcrdma_wc_receive(9)
• rpcrdma_cm_event_handler(9)
• rpcrdma_xprt_connect(9)
• rpcrdma_xprt_disconnect(9)
• rpcrdma_sendctx_get_locked(9)
• rpcrdma_sendctx_unget_locked(9)
• rpcrdma_sendctx_put_locked(9)
• rpcrdma_mrs_refresh(9)
• rpcrdma_req_create(9)
• rpcrdma_req_setup(9)
• rpcrdma_rep_put(9)
• rpcrdma_buffer_create(9)
• rpcrdma_req_destroy(9)
• rpcrdma_mrs_destroy(9)
• rpcrdma_buffer_destroy(9)
• rpcrdma_mr_get(9)
• rpcrdma_reply_put(9)
• rpcrdma_buffer_get(9)
• rpcrdma_buffer_put(9)
• rpcrdma_regbuf_realloc(9)
• __rpcrdma_regbuf_dma_map(9)

like I said. the whole squad. every single one. periodt 💀🔥

ngl bestie, if you're deep in the SunRPC/RDMA trenches, you're gonna be seeing a lot of these names. iykyk 🌸

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and that's the page!! short and sweet, just like our girl rpcrdma_post_recvs 💜

this little beauty lives over in ./net/sunrpc/xprtrdma, and the version I'm reading is dated October 2026 📅 — so yeah, mark your calendars, she's from the future (or at least, that's what the footer says, and I don't make the rules 🧚). mwah, bye!! 🍓