tcp_splice_read(9)

💅 tcp_splice_read(9) — a Kernel API Manual moment ✨

okay bestie, so this one lives in the Kernel API Manual and honestly it's giving "small function, big job" energy. let's get into it 🫶

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✨ NAME ✨

tcp_splice_read — splice data from TCP socket to a pipe 🌈

like, it takes the data chilling in your TCP socket and yeets it straight into a pipe. no cap.

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🎀 SYNOPSIS 🎀

ssize_t tcp_splice_read (struct socket *sock , loff_t *ppos , struct
       pipe_inode_info *pipe , size_t len , unsigned int flags );

that's the whole signature, copy it exactly, don't come for me 😭

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🦋 ARGUMENTS 🦋

• sock — the socket you're splicing from, bestie. this is the source vibe 💖
• ppos — position — and listen, it's not valid. like, at all. the manpage literally says so 🙈
• pipe — the pipe you're splicing to. this is the destination, the main character of the receiving side 👑
• len — number of bytes to splice, i.e. how much you're moving over 🍓
• flags — splice modifier flags, the little knobs you can twist ⭐

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🌸 DESCRIPTION 🌸

will read pages from the given socket and fill them into a pipe. that's it, that's the whole tea ☕ it's literally doing exactly what it says on the tin — pages come out of the socket, pages go into the pipe, everybody slays 💅

ngl it's a short description because the function is a short description of itself. iconic behaviour, honestly ✨

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🧚 SEE ALSO 🧚

• Kernel file ./net/ipv4/tcp.c — go read it, iykyk 📖

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and that's the page!! this little gem comes to you from ./net/ipv4, dated October 2026 — catch you in the next release, bestie 💜🦋💖