Re: New copyfile system call - discuss before LSF?

[Ric Wheeler]

On 02/22/2013 10:47 AM, Paolo Bonzini wrote:
> Il 21/02/2013 23:24, Zach Brown ha scritto:
> > You could make it work with some locking and out_fd seeking to set the
> > write offset before calling sendfile64()+flags, but ugh.
> >
> >   ssize_t sendfile(int out_fd, int in_fd, off_t in_offset, off_t
> >                    out_offset, size_t count, int flags);
> >
> > That seems closer.
> >
> > We might also want to pre-emptively offer iovs instead of offsets,
> > because that's the very first thing that's going to be requested after
> > people prototype having to iterate calling sendfile() for each
> > contiguous copy region.
> Indeed, I was about to propose that exactly.  So that would be
> psendfilev.  I don't think psendfile is useful, and can be easily
> provided at the libc level.
>
> Paolo

This seems to be suspiciously close to a clear consensus on how to move forward 
after many years of spinning our wheels. Anyone want to promote an actual patch 
before we change our collective minds?

Ric

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