On 8/21/20 10:41 PM, Luke Hsiao wrote: > From: Luke Hsiao <lukehs...@google.com> > > Currently, io_uring's recvmsg subscribes to both POLLERR and POLLIN. In > the context of TCP tx zero-copy, this is inefficient since we are only > reading the error queue and not using recvmsg to read POLLIN responses. > > This patch was tested by using a simple sending program to call recvmsg > using io_uring with MSG_ERRQUEUE set and verifying with printks that the > POLLIN is correctly unset when the msg flags are MSG_ERRQUEUE.
Perfect, and ends up being much simpler too and straight forward. -- Jens Axboe
