[PATCH] copy_file_range: New function to copy file data

[Andreas Schwab]

On Nov 23 2017, Florian Weimer <fweimer@redhat.com> wrote:

>> I don't think write can ever return 0 when writing more than zero bytes.
>
> I can drop the check.  With the Linux VFS layer, it is difficult to tell
> whether this condition can ever happen, and if it does, we would likely
> enter an infinite loop without the check.

Or we get the real error in the next loop.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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