From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Tue, 23 Feb 2021 20:04:41 +0000 (+0100)
Subject: attach: handle new and old clients
X-Git-Tag: lxc-5.0.0~272^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bef8f784733a601ec7e5df899d6c4039bac18a42;p=thirdparty%2Flxc.git

attach: handle new and old clients

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---

diff --git a/src/lxc/attach.c b/src/lxc/attach.c
index b6a0664ca..9b7915860 100644
--- a/src/lxc/attach.c
+++ b/src/lxc/attach.c
@@ -1641,8 +1641,7 @@ int lxc_attach(struct lxc_container *container, lxc_attach_exec_t exec_function,
 		ret = cgroup_attach(conf, name, lxcpath, pid);
 		if (ret) {
 			call_cleaner(cgroup_exit) struct cgroup_ops *cgroup_ops = NULL;
-
-			if (ret != -ENOCGROUP2) {
+			if (ret != -ENOCGROUP2 && ret != -ENOSYS) {
 				SYSERROR("Failed to attach cgroup");
 				goto on_error;
 			}