Am Freitag, 13. Januar 2017, 19:25:39 CET schrieb Herbert Xu:

Hi Herbert,

> On Fri, Jan 13, 2017 at 12:16:27PM +0100, Stephan Müller wrote:
> > > If you're making a single call, what guarantees the ordering?
> > 
> > Technically, io_submit is the syscall that triggers the recvmsg. Are you
> > saying that this syscall does not maintain ordering? At least the man page
> > does not add any hints that it would not (unlike the lio_list man page).
> The code certainly does.  But my point is that you can do the
> same thing using the current API.  Just make your list be pairs
> of write/read and it should work.

How shall these pairs come into existence? The read/write system calls may 
come at unspecified times with potentially dissimilar buffer lengths.

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