if (swap_cgroup_cmpxchg(entry, old_id, new_id) == old_id) {
mem_cgroup_swap_statistics(from, false);
mem_cgroup_swap_statistics(to, true);
- /*
- * This function is only called from task migration context now.
- * It postpones page_counter and refcount handling till the end
- * of task migration(mem_cgroup_clear_mc()) for performance
- * improvement. But we cannot postpone css_get(to) because if
- * the process that has been moved to @to does swap-in, the
- * refcount of @to might be decreased to 0.
- *
- * We are in attach() phase, so the cgroup is guaranteed to be
- * alive, so we can just call css_get().
- */
- css_get(&to->css);
return 0;
}
return -EINVAL;
if (parent_css == NULL) {
root_mem_cgroup = memcg;
page_counter_init(&memcg->memory, NULL);
+ memcg->soft_limit = PAGE_COUNTER_MAX;
page_counter_init(&memcg->memsw, NULL);
page_counter_init(&memcg->kmem, NULL);
}
if (parent->use_hierarchy) {
page_counter_init(&memcg->memory, &parent->memory);
+ memcg->soft_limit = PAGE_COUNTER_MAX;
page_counter_init(&memcg->memsw, &parent->memsw);
page_counter_init(&memcg->kmem, &parent->kmem);
*/
} else {
page_counter_init(&memcg->memory, NULL);
+ memcg->soft_limit = PAGE_COUNTER_MAX;
page_counter_init(&memcg->memsw, NULL);
page_counter_init(&memcg->kmem, NULL);
/*
mem_cgroup_resize_limit(memcg, PAGE_COUNTER_MAX);
mem_cgroup_resize_memsw_limit(memcg, PAGE_COUNTER_MAX);
memcg_update_kmem_limit(memcg, PAGE_COUNTER_MAX);
- memcg->soft_limit = 0;
+ memcg->soft_limit = PAGE_COUNTER_MAX;
}
#ifdef CONFIG_MMU