… > +++ b/kernel/cgroup/cpuset.c … > @@ -5051,10 +5066,12 @@ int proc_cpuset_show(struct seq_file *m, struct pid_namespace *ns, > if (!buf) > goto out; > > + mutex_lock(&cpuset_mutex); > css = task_get_css(tsk, cpuset_cgrp_id); > retval = cgroup_path_ns(css->cgroup, buf, PATH_MAX, > current->nsproxy->cgroup_ns); > css_put(css); > + mutex_unlock(&cpuset_mutex); … Under which circumstances would you become interested to apply a statement like “guard(mutex)(&cpuset_mutex);”? https://elixir.bootlin.com/linux/v6.10-rc4/source/include/linux/mutex.h#L196 Regards, Markus
