On Thu, Oct 24, 2019 at 12:57 PM David Howells <dhowells@xxxxxxxxxx> wrote: > > pipe: Add fsync() support > > The keyrings testsuite needs the ability to wait for all the outstanding > notifications in the queue to have been processed so that it can then go > through them to find out whether the notifications it expected have been > emitted. Can't you just do ioctl(fd, FIONREAD, &count); in a loop instead? "No paperwork. Just sprinkle some msleep() crack on him, and let's get out of here" Linus