On Mon, Apr 21, 2025 at 02:52:42PM -0400, trondmy@xxxxxxxxxx wrote:
> From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
>
> Once the clp->cl_uuid.lock has been dropped, another CPU could come in
> and free the struct nfsd_file that was just added. To prevent that from
> happening, take the RCU read lock before dropping the spin lock.
>
> Fixes: 86e00412254a ("nfs: cache all open LOCALIO nfsd_file(s) in client")
> Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Reviewed-by: Mike Snitzer <snitzer@xxxxxxxxxx>
