svc_tcp_sendto(9)

👑 svc_tcp_sendto(9) — send out a reply on a TCP socket

okay so welcome to the Kernel API Manual, bestie 💖. This page is literally about svc_tcp_sendto, and it's giving “put the reply on the TCP socket” main character energy. no cap.

🌸 NAME

svc_tcp_sendto — Send out a reply on a TCP socket ✨

🦋 SYNOPSIS

int svc_tcp_sendto (struct svc_rqst *rqstp );

🎀 ARGUMENTS

• rqstp — a completed svc_rqst 👑. Like, the reply is all finished and ready for its little socket moment.

💖 DESCRIPTION

xpt_mutex is the lock bestie that makes sure rqstp's whole message gets written to the socket without interruption 🫶. The entire message, in one go, no chaotic cut-off vibes. slay.

It returns the number of bytes sent, or a negative errno 😭. So: byte count on one side, negative errno on the other — don't confuse the two, bestie. periodt.

🔥 SEE ALSO

• Kernel file ./net/sunrpc/svcsock.c 📁
• svc_tcp_release_ctxt(9)
• svc_udp_release_ctxt(9)
• svc_tcp_handshake_done(9)
• svc_tcp_handshake(9)
• svc_udp_recvfrom(9)
• svc_udp_sendto(9)
• svc_tcp_recvfrom(9)
• svc_addsock(9)

and that's the vibe check ✅ — this page is from ./net/sunrpc and dated October 2026, so you know exactly where and when it's serving from. mwah 💋🎀