On Wed, Apr 21, 2021 at 2:05 PM Peter Xu peterx@redhat.com wrote:
Hi, Suren,
On Wed, Apr 21, 2021 at 01:01:34PM -0700, Suren Baghdasaryan wrote:
Peter, you mentioned https://lkml.org/lkml/2020/8/10/439 patch to distinguish real writes vs enforced COW read requests, however I also see that you had a later version of this patch here: https://lore.kernel.org/patchwork/patch/1286506/. Which one should I backport? Or is it not needed in the absence of uffd-wp support in the earlier kernels?
Sorry I have no ability to evaluate the rest... but according to Linus's previous reply, my understanding is that it is not needed, not to mention it's not upstreamed too.
Thanks! Then I'll send the backports for 17839856fd58 alone and if more backports are needed I'll post followup patches. Cheers, Suren.
Thanks,
-- Peter Xu
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