restore: apply resource limits

When C/R was implemented, it was enough to call manager.Set to apply
limits and to move a task. Now .Set() and .Apply() have to be called
separately.

Fixes: 8a740d5 ("libcontainer: cgroups: don't Set in Apply")
Signed-off-by: Andrei Vagin <[email protected]>

Author: avagin

libcontainer/container_linux.go

@@ -957,6 +957,10 @@ func (c *linuxContainer) criuApplyCgroups(pid int, req *criurpc.CriuReq) error {
 		return err
 	}
 
+	if err := c.cgroupManager.Set(c.config); err != nil {
+		return newSystemError(err)
+	}
+
 	path := fmt.Sprintf("/proc/%d/cgroup", pid)
 	cgroupsPaths, err := cgroups.ParseCgroupFile(path)
 	if err != nil {