Merge: Follow-up fixes for nfsd for 9.2

MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/1846

Bugzilla: https://bugzilla.redhat.com/2138605
Bugzilla: https://bugzilla.redhat.com/2138321
Bugzilla: https://bugzilla.redhat.com/2138357
Bugzilla: https://bugzilla.redhat.com/2152473
Bugzilla: https://bugzilla.redhat.com/2152996

Most of these are centered around the filecache stabilization patches
which have recently gone upstream, but there are a few other recent
fixes sprinkled in here too.

Signed-off-by: Jeffrey Layton <jlayton@redhat.com>

Approved-by: Scott Mayhew <smayhew@redhat.com>
Approved-by: Benjamin Coddington <bcodding@redhat.com>

Signed-off-by: Herton R. Krzesinski <herton@redhat.com>

Author: Herton R. Krzesinski

fs/nfsd/cache.h

@@ -84,6 +84,6 @@ int	nfsd_reply_cache_init(struct nfsd_net *);
 void	nfsd_reply_cache_shutdown(struct nfsd_net *);
 int	nfsd_cache_lookup(struct svc_rqst *);
 void	nfsd_cache_update(struct svc_rqst *, int, __be32 *);
-int	nfsd_reply_cache_stats_open(struct inode *, struct file *);
+int	nfsd_reply_cache_stats_show(struct seq_file *m, void *v);
 
 #endif /* NFSCACHE_H */