On Tue, Apr 28, 2020 at 09:48:11PM +1000, Michael Ellerman wrote:
> 
> This comes from fcheck_files() via fcheck().
> 
> It's pretty clearly documented that fcheck() must be wrapped with
> rcu_read_lock(), so fix it.

But for this to actually be useful you'd need the rcu read lock until
your are done with the file (or got a reference).

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