[LTP] copy_file_range() errno changes introduced in v5.3-rc1

[Petr Vorel]

Hi Darrick,

> On Thu, Sep 26, 2019 at 05:56:08PM +0200, Petr Vorel wrote:
> > Hi Amir,

> > I'm going to fix LTP test copy_file_range02 before upcoming LTP release.
> > There are some returning errno changes introduced in v5.3-rc1, part of commit 40f06c799539
> > ("Merge tag 'copy-file-range-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux").
> > These changes looks pretty obvious as wanted, but can you please confirm it they were intentional?

> > * 5dae222a5ff0 ("vfs: allow copy_file_range to copy across devices") started to return -EXDEV.
> > * 96e6e8f4a68d ("vfs: add missing checks to copy_file_range") started to return -EPERM, -ETXTBSY, -EOVERFLOW.

> I'm not Amir, but by my recollection, yes, those are intentional. :)
Thanks for a quick confirmation.

> --D

Kind regards,
Petr