CIFS: Add set_file_info support for SMB2

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>

fs/cifs/smb2inode.c

@@ -86,6 +86,10 @@ smb2_open_op_close(const unsigned int xid, struct cifs_tcon *tcon,
 		tmprc = SMB2_set_eof(xid, tcon, persistent_fid, volatile_fid,
 				     current->tgid, (__le64 *)data);
 		break;
+	case SMB2_OP_SET_INFO:
+		tmprc = SMB2_set_info(xid, tcon, persistent_fid, volatile_fid,
+				      (FILE_BASIC_INFO *)data);
+		break;
 	default:
 		cERROR(1, "Invalid command");
 		break;
@@ -232,3 +236,21 @@ smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
 				  FILE_WRITE_DATA, FILE_OPEN, 0, 0, &eof,
 				  SMB2_OP_SET_EOF);
 }
+
+int
+smb2_set_file_info(struct inode *inode, const char *full_path,
+		   FILE_BASIC_INFO *buf, const unsigned int xid)
+{
+	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+	struct tcon_link *tlink;
+	int rc;
+
+	tlink = cifs_sb_tlink(cifs_sb);
+	if (IS_ERR(tlink))
+		return PTR_ERR(tlink);
+	rc = smb2_open_op_close(xid, tlink_tcon(tlink), cifs_sb, full_path,
+				FILE_WRITE_ATTRIBUTES, FILE_OPEN, 0, 0, buf,
+				SMB2_OP_SET_INFO);
+	cifs_put_tlink(tlink);
+	return rc;
+}