Re: [PATCH 7/8] socket: Add SO_TIMESTAMP[NS]_NEW

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> > > > Same for the tcp case above, really, and in the case of the next patch
> > > > for SO_TIMESTAMPING_NEW
> > >
> > > That naming convention, ..._2038, is not the nicest, of course. That
> > > is not the relevant bit in the above comment.
>
> it could be  __sock_recv_timestamp64().
> But, these timestamps should be doing exactly the same thing as the
> old ones and I thought it would be nicer to keep the same code path.
> I can change it to as per above.

Please minimize code changes. It breaks git blame and longer patches
are harder to review.

In this specific case, from a readability point of view, I find new functions
that map one-to-one onto the new interfaces also more readable than
deeper nested branches in place.

> > So we introduce new y2038 safe timestamp options for 32 bit ABIs. We
> > assume that 32 bit applications will switch to new ABIs at some point,
> > but leave the older timestamps as is.
> > I can update the commit text as per above.
>
> We have been avoiding adding timeval64 timestamps to discourage users
> from using these types in the interfaces.
> We want to keep all the uapi time interfaces to use __kernel_*
> interfaces. And, we already provide __kernel_timespec interface for
> such instances.
> But, in this case we do not have an option. So we introduce a type
> specific to sockets.

This structure just holds a timestamp. It does not seem socket specific.
I don't mean to bikeshed the naming point too much, but timeval_ll or
so may be more representative than tying it to a socket.

As for the general naming, xxx64 or xxx2038 are more descriptive than xxx_NEW.



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