cifs: Save TTL value when parsing DFS referrals

This will be needed by DFS cache.

Signed-off-by: Paulo Alcantara <palcantara@suse.de>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 7b3b931..3b1aa12 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1508,6 +1508,7 @@ struct dfs_info3_param {
 	int ref_flag;
 	char *path_name;
 	char *node_name;
+	int ttl;
 };
 
 /*
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index f7c0c6f..5e315e4 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -740,6 +740,8 @@ parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
 			goto parse_DFS_referrals_exit;
 		}
 
+		node->ttl = le32_to_cpu(ref->TimeToLive);
+
 		ref++;
 	}