rpcrdma_cm_event_handler(9)

📦 version 7.3.1, in nixpkgs unstable

💅 rpcrdma_cm_event_handler — the Kernel API Manual tea 🫖

okay so bestie, we're in the kernel API manual today and the function we're stanning is rpcrdma_cm_event_handler — literally the whole job is Handle RDMA CM events ✨ that's the NAME section, we ate that 💅

🌸 SYNOPSIS 🌸

int rpcrdma_cm_event_handler (struct rdma_cm_id *id , struct
rdma_cm_event *event );

like, that's it. that's the whole signature bestie. copy it exactly, no cap 🫶

🎀 ARGUMENTS 🎀

  • id — the rdma_cm_id that an event has occurred on, iykyk 👑
  • event — the actual details of the event, like the receipts of what went down 💀

✨ DESCRIPTION ✨

okay so real talk: this one gets called with id's mutex held 🔒 — like, already locked, not your job to lock it, don't touch it, periodt.

and the return value? it's giving binary:

  • returns 1 if the caller should destroy id 🔥 (yes literally tear it down)
  • otherwise returns 0

that's the whole vibe check. no extra lore, that's it. 🦋

👀 SEE ALSO 👀

the kernel file lives at ./net/sunrpc/xprtrdma/verbs.c — go read it, it's iconic 🎀

and the whole friend group of sibling functions, all of them, no skips 🫶:

like, that's a whole squad. go say hi to all of them 💜

ngl bestie, don't forget the mutex thing — it's already held when this runs. that's not a suggestion, that's the rules 😭

and that's the page!! this little masterpiece lives in ./net/sunrpc/xprtrdma, dated October 2026, and it's serving Kernel API Manual realness ⭐ mwah, slay, see u in the next man page 🧚💖

📦 where this page comes from