NFS: Update listxattr to use xdr_set_scratch_folio()

Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>

Author: Anna Schumaker

fs/nfs/nfs42proc.c

@@ -1514,7 +1514,7 @@ static ssize_t _nfs42_proc_listxattrs(struct inode *inode, void *buf,
 
 
 	ret = -ENOMEM;
-	res.scratch = alloc_page(GFP_KERNEL);
+	res.scratch = folio_alloc(GFP_KERNEL, 0);
 	if (!res.scratch)
 		goto out;
 
@@ -1552,7 +1552,7 @@ static ssize_t _nfs42_proc_listxattrs(struct inode *inode, void *buf,
 	}
 	kfree(pages);
 out_free_scratch:
-	__free_page(res.scratch);
+	folio_put(res.scratch);
 out:
 	return ret;
 

fs/nfs/nfs42xdr.c

@@ -1781,7 +1781,7 @@ static int nfs4_xdr_dec_listxattrs(struct rpc_rqst *rqstp,
 	struct compound_hdr hdr;
 	int status;
 
-	xdr_set_scratch_page(xdr, res->scratch);
+	xdr_set_scratch_folio(xdr, res->scratch);
 
 	status = decode_compound_hdr(xdr, &hdr);
 	if (status)

include/linux/nfs_xdr.h

@@ -1596,7 +1596,7 @@ struct nfs42_listxattrsargs {
 
 struct nfs42_listxattrsres {
 	struct nfs4_sequence_res	seq_res;
-	struct page			*scratch;
+	struct folio			*scratch;
 	void				*xattr_buf;
 	size_t				xattr_len;
 	u64				cookie;