From: Eric Dumazet <eric.duma...@gmail.com> Date: Mon, 02 May 2016 13:23:27 -0700
> It looks like net/sunrpc/xprtsock.c should set SOCK_FASYNC > even if it is not actually using fasync_list > > Could you try this quick hack to check if this is the right way ? Indeed, it tests the ASYNC bit without enabling FASYNC. There are three other places that do this: macvtap, tun, dlm lowcomms.
