[PATCH v7 02/23] iov_iter: DDP copy to iter/pages

[Aurelien Aptel]

Hi Christoph,

Christoph Hellwig <hch at lst.de> writes:
> I don't think this is a good subject line.  What the patch does is
> to skip the memcpy, so something about that in the subject.  You

Sure, we will use the following subject:

  iov_iter: skip copy if src == dst for direct data placement

> can then explain the commit log why that is done.  And given that
> the behavior isn't all that obvious I think a big fat comment in the
> code would be very helpful in this case as well.

And we will add the big comment.