On Mon, Sep 28, 2020 at 12:08:09PM -0400, Chuck Lever wrote:
>
>
> > On Sep 28, 2020, at 11:49 AM, Frank van der Linden <fllinden@xxxxxxxxxx> wrote:
> >
> > Bruce - if you want me to 'formally' submit a version of the patch, let me
> > know. Just disabling the cache for v4, which comes down to reverting a few
> > commits, is probably simpler - I'd be able to test that too.
>
> I'd be interested in seeing that. From what I saw, the mechanics of
> unhooking the cache from NFSv4 simply involve reverting patches, but
> there appear to be some recent changes that depend on the open
> filecache that might be difficult to deal with, like
>
> b66ae6dd0c30 ("nfsd: Pass the nfsd_file as arguments to nfsd4_clone_file_range()")
Hm, yes, I missed nf_rwsem being added to the struct.
Probably easier to keep nfsd_file, and have v4 use just straight alloc/free
functions for it that don't touch the cache at all.
- Frank
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