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I > am asking because I would like to try out quic with an in-kernel > application protocol like DLM. Besides DLM I've heard that the SMB > community is also interested into such implementation. Yes SMB can work over QUIC. It would be nice if there was an in-kernel implementation that cifs.ko could use. Many firewall block port 445 (SMB) despite the newer version of the protocol now having encryption, signing, etc. Using QUIC (UDP port 443) would allow for more reliable connectivity to cloud storage like azure. There are already multiple well-tested C QUIC implementation out there (Microsoft one for example, has a lot of extra code annotation to allow for deep static analysis) but I'm not sure how we would go about porting it to linux. https://github.com/microsoft/msquic Cheers, --=20 Aur=C3=A9lien Aptel / SUSE Labs Samba Team GPG: 1839 CB5F 9F5B FB9B AA97 8C99 03C8 A49B 521B D5D3 SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 N=C3=BCrnberg, D= E GF: Felix Imend=C3=B6rffer, Mary Higgins, Sri Rasiah HRB 247165 (AG M=C3=BC= nchen)