+static struct sgx_cgroup *sgx_cgroup_next_descendant_pre(struct
sgx_cgroup *root,
+ struct sgx_cgroup *cg)
+{
+ struct cgroup_subsys_state *next;
+
+ rcu_read_lock();
+ for (;;) {
+ next = css_next_descendant_pre(&cg->cg->css, &root->cg->css);
I messed it up in a last minute change and rebase. Above should be:
+ struct cgroup_subsys_state *next = &cg->cg->css;
+
+ rcu_read_lock();
+ for (;;) {
+ next = css_next_descendant_pre(next, &root->cg->css);
Fixed in a branch here:
https://github.com/haitaohuang/linux/tree/sgx_cg_upstream_v16_plus
Will include in next version or update if needed.
+ if (!next) {
+ next = &root->cg->css;
+ break;
+ }
+
+ if (css_tryget(next))
+ break;
+ }
+ rcu_read_unlock();
+
+ return sgx_cgroup_from_misc_cg(css_misc(next));
+}
+
BR
Haitao
