pNFS: Get rid of unnecessary layout parameter in encode_layoutreturn callback

The parameter is already present in the "args" structure.
Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>

fs/nfs/flexfilelayout/flexfilelayout.c

@@ -2012,10 +2012,10 @@ ff_layout_alloc_deviceid_node(struct nfs_server *server,
 }
 
 static void
-ff_layout_encode_layoutreturn(struct pnfs_layout_hdr *lo,
-			      struct xdr_stream *xdr,
+ff_layout_encode_layoutreturn(struct xdr_stream *xdr,
 			      const struct nfs4_layoutreturn_args *args)
 {
+	struct pnfs_layout_hdr *lo = args->layout;
 	struct nfs4_flexfile_layout *flo = FF_LAYOUT_FROM_HDR(lo);
 	__be32 *start;
 

fs/nfs/nfs4xdr.c

@@ -2013,6 +2013,7 @@ encode_layoutreturn(struct xdr_stream *xdr,
 		    const struct nfs4_layoutreturn_args *args,
 		    struct compound_hdr *hdr)
 {
+	const struct pnfs_layoutdriver_type *lr_ops = NFS_SERVER(args->inode)->pnfs_curr_ld;
 	__be32 *p;
 
 	encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr);
@@ -2027,10 +2028,9 @@ encode_layoutreturn(struct xdr_stream *xdr,
 	spin_lock(&args->inode->i_lock);
 	encode_nfs4_stateid(xdr, &args->stateid);
 	spin_unlock(&args->inode->i_lock);
-	if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) {
-		NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn(
-			NFS_I(args->inode)->layout, xdr, args);
-	} else
+	if (lr_ops->encode_layoutreturn)
+		lr_ops->encode_layoutreturn(xdr, args);
+	else
 		encode_uint32(xdr, 0);
 }
 

fs/nfs/objlayout/objlayout.c

@@ -504,10 +504,10 @@ encode_accumulated_error(struct objlayout *objlay, __be32 *p)
 }
 
 void
-objlayout_encode_layoutreturn(struct pnfs_layout_hdr *pnfslay,
-			      struct xdr_stream *xdr,
+objlayout_encode_layoutreturn(struct xdr_stream *xdr,
 			      const struct nfs4_layoutreturn_args *args)
 {
+	struct pnfs_layout_hdr *pnfslay = args->layout;
 	struct objlayout *objlay = OBJLAYOUT(pnfslay);
 	struct objlayout_io_res *oir, *tmp;
 	__be32 *start;

fs/nfs/objlayout/objlayout.h

@@ -175,7 +175,6 @@ extern void objlayout_encode_layoutcommit(
 	const struct nfs4_layoutcommit_args *);
 
 extern void objlayout_encode_layoutreturn(
-	struct pnfs_layout_hdr *,
 	struct xdr_stream *,
 	const struct nfs4_layoutreturn_args *);
 

fs/nfs/pnfs.h

@@ -172,8 +172,7 @@ struct pnfs_layoutdriver_type {
 			(struct nfs_server *server, struct pnfs_device *pdev,
 			gfp_t gfp_flags);
 
-	void (*encode_layoutreturn) (struct pnfs_layout_hdr *layoutid,
-				     struct xdr_stream *xdr,
+	void (*encode_layoutreturn) (struct xdr_stream *xdr,
 				     const struct nfs4_layoutreturn_args *args);
 
 	void (*cleanup_layoutcommit) (struct nfs4_layoutcommit_data *data);