Re: git: 643336549081 - main - If copy_file_range(2) fails with EXDEV, use fall-back.

On 4/4/23, Poul-Henning Kamp <phk@phk.freebsd.dk> wrote:
> --------
> Alexey Dokuchaev writes:
>
>> Okay, but did it leave an empty file, I wonder?
>
> I didn't check, but it probably would, because cp(1) must have opened
> and created the destination in order to call copy_file_range(2).
>
> PS: I'll note that EXDEV is not a documented return value from
> copy_file_range(2), and my surprise that cp(1) did not revert
> to the fall-back, no matter why copy_file_range(2) failed.
>

that's a new one and should not be happening, something is borked in
the kernel -- cross device copies *are* supported

i'll look into it later

-- 
Mateusz Guzik <mjguzik gmail.com>