ksmbd_compress_response(9)

✨ NAME ✨

Okay bestie, meet ksmbd_compress_response(9) from the Kernel API Manual — the function that compresses an eligible ksmbd response. 💅

🌸 SYNOPSIS 🌸

int ksmbd_compress_response (struct ksmbd_work *work );

🎀 ARGUMENTS 🎀

• work — the request work item containing the response iov.

🦋 DESCRIPTION 🦋

So here’s the vibe: compression transforms describe one contiguous SMB2 message, while ksmbd builds responses from multiple iov entries. 🫶

The move is: flatten the response first, produce the negotiated transform, and replace the response iov only when the result is smaller than the original message. No cap, size matters here. ✨

Encrypted and compound responses are intentionally left unchanged — like, not me touching those, they’re giving “do not disturb.” 🙈

The caller may still continue sending the original response when this function returns zero. So zero is not a fail, it’s just “we skipped compression, keep it moving.” 💖

🔥 RETURN 🔥

• 1 — the response was replaced. Slay. 👑
• 0 — compression was skipped. Still valid, bestie. 🌈
• a negative errno — failure. 😭

🌟 SEE ALSO 🌟

• Kernel file: ./fs/smb/server/compress.c
• ksmbd_decompress_request(9)
• ksmbd_decompress_work_request(9)

Source/version: ./fs/smb/server · Date: October 2026 · Page: ksmbd_compress_response(9) — bye bestie, go compress responsibly! 💖✨