Re: [PATCH v1 3/3] NFS: Add COPY nfs operation

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On Thu, Dec 03, 2015 at 03:55:36PM -0500, Anna Schumaker wrote:
> From: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
> 
> This adds the copy_range file_ops function pointer used by the
> sys_copy_range() function call.  This patch only implements sync copies,
> so if an async copy happens we decode the stateid and ignore it.

What is the user visible behavior if a server doesn't set
cr_synchronous? I can't see any explicit handling of it, which makes
me a little sceptic that everything is just going to work fine.
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