sk_stream_write_space(9)

🎀 NAME 🎀

okay so welcome to the Kernel API Manual, bestie — today’s main character is sk_stream_write_space(9).

• sk_stream_write_space — stream socket write_space callback. periodt. 💅

✨ SYNOPSIS ✨

void sk_stream_write_space (struct sock *sk );

💅 ARGUMENTS 💅

• sk — pointer to the socket structure. that’s the whole argument, no cap. 🫶

🌸 DESCRIPTION 🌸

okay so picture this: this function is invoked when there’s space available in the socket’s send buffer for writing. It first checks if the socket is writable, then clears the SOCK_NOSPACE flag (the one indicating that memory for writing is now available), wakes up any processes waiting for write operations, and sends asynchronous notifications if needed. iconic behavior, honestly. ✨

🦋 SEE ALSO 🦋

• Kernel file: ./net/core/stream.c
• sk_stream_wait_connect(9)
• sk_stream_closing(9)
• sk_stream_wait_memory(9)

those are the linked besties, iykyk. 💖

cute little sign-off: source/version vibes from ./net/core, October 2026, on the sk_stream_write_space(9) page — mwah 💋