No problem, I can overlook the obvious....
But as jlayton says, what you describe is not the typical case for NFS since v3, and reverting to NFSv2-like behavior would be a significant regression in some common cases.
And on a quick check.... I think the Linux v4 client, as one example, does request the change attribute on every write (assuming it doesn't hold a delegation), so the server would be forcing a commit to disk on every write.
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