Re: [PATCH v2] vfs: prevent copy_file_range to copy across devices

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On Thu, Feb 18, 2021 at 9:42 AM Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
>
> Looks good:
>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
>
> This whole idea of cross-device copie has always been a horrible idea,
> and I've been arguing against it since the patches were posted.

Ok. I'm good with this v2 as well, but need to add the fallback to
do_splice_direct()
in nfsd_copy_file_range(), because this patch breaks it.

And the commit message of v3 is better in describing the reported issue.

Thanks,
Amir.



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