On Tue, Oct 9, 2018 at 7:58 AM Eric Dumazet <eduma...@google.com> wrote: >
> We do not add bloat in the kernel if no application is ever going to > use it, especially in the TCP fast path. > BTW, are you willing to change all memory allocations in the kernel as well ? Let say an application is using a system call providing a pathname (open(), stat(), ...), how this system call is going to ask the kernel for no direct reclaim ? Even allocating a socket with socket() or accept() has no ability to avoid direct reclaim. So tcp_sendmsg() is only the tip of the iceberg.