nfsd: discard nfsd_file_get_local()

This interface was deprecated by commit e6f7e14 ("nfs_localio:
simplify interface to nfsd for getting nfsd_file") and is now
unused. So let's remove it.

Signed-off-by: NeilBrown <neil@brown.name>
Reviewed-by: Mike Snitzer <snitzer@kernel.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

Author: neilbrown

fs/nfsd/filecache.c

@@ -391,27 +391,6 @@ nfsd_file_put_local(struct nfsd_file __rcu **pnf)
 	return net;
 }
 
-/**
- * nfsd_file_get_local - get nfsd_file reference and reference to net
- * @nf: nfsd_file of which to put the reference
- *
- * Get reference to both the nfsd_file and nf->nf_net.
- */
-struct nfsd_file *
-nfsd_file_get_local(struct nfsd_file *nf)
-{
-	struct net *net = nf->nf_net;
-
-	if (nfsd_net_try_get(net)) {
-		nf = nfsd_file_get(nf);
-		if (!nf)
-			nfsd_net_put(net);
-	} else {
-		nf = NULL;
-	}
-	return nf;
-}
-
 /**
  * nfsd_file_file - get the backing file of an nfsd_file
  * @nf: nfsd_file of which to access the backing file.

fs/nfsd/filecache.h

@@ -63,7 +63,6 @@ int nfsd_file_cache_start_net(struct net *net);
 void nfsd_file_cache_shutdown_net(struct net *net);
 void nfsd_file_put(struct nfsd_file *nf);
 struct net *nfsd_file_put_local(struct nfsd_file __rcu **nf);
-struct nfsd_file *nfsd_file_get_local(struct nfsd_file *nf);
 struct nfsd_file *nfsd_file_get(struct nfsd_file *nf);
 struct file *nfsd_file_file(struct nfsd_file *nf);
 void nfsd_file_close_inode_sync(struct inode *inode);

fs/nfsd/localio.c

@@ -122,7 +122,6 @@ static const struct nfsd_localio_operations nfsd_localio_ops = {
 	.nfsd_net_put  = nfsd_net_put,
 	.nfsd_open_local_fh = nfsd_open_local_fh,
 	.nfsd_file_put_local = nfsd_file_put_local,
-	.nfsd_file_get_local = nfsd_file_get_local,
 	.nfsd_file_file = nfsd_file_file,
 };
 

include/linux/nfslocalio.h

@@ -63,7 +63,6 @@ struct nfsd_localio_operations {
 						struct nfsd_file __rcu **pnf,
 						const fmode_t);
 	struct net *(*nfsd_file_put_local)(struct nfsd_file __rcu **);
-	struct nfsd_file *(*nfsd_file_get_local)(struct nfsd_file *);
 	struct file *(*nfsd_file_file)(struct nfsd_file *);
 } ____cacheline_aligned;