> From: Jens Axboe <axboe@xxxxxxxxx> > Subject: [PATCHSET v15] io_uring IO interface > Message-ID: <20190211190049.7888-1-axboe@xxxxxxxxx> (raw) > > Some final tweaks, mostly cosmetic, but also two important fixes: > > 1) Ensure that we account the skb appropriately against the socket. > Some network config options apparently return is an skb with > ->truesize != 0 when allocated with a size of 0, ensure we add > those as references against sock->sk_wmem_alloc. Reported by > Matt Mullins. Jens, I tried using io_uring with network sockets. It seem to be doing the right thing. One bit is missing though: "flags" as in recv(2). In perfect world I would like to specify at least: - MSG_DONTWAIT - MSG_WAITALL - MSG_NOSIGNAL Right now, unless I'm missing something, io_uring_sqe doesn't have a place where we could store these. "flags" is needed for any non-trivial network I/O. A separate discussion is about io_uring supporting more complex network stuff in future like 'struct msghdr', MSG_ERRQUEUE or CMSG. Cheers, Marek
