task_css_check(9)

💖 NAME 💖

okay so, from the Kernel API Manual, this is task_css_check(9) — and the function name is literally task_css_check: obtain css for (task, subsys) w/ extra access conds 😌✨

🦋 SYNOPSIS 🦋

the whole call looks like this, no edits:

task_css_check (task , subsys_id , __c );

🎀 ARGUMENTS 🎀

• task — the target task 🎯
• subsys_id — the target subsystem ID 💅
• __c — extra condition expression to be passed to rcu_dereference_check ✨

🌸 DESCRIPTION 🌸

Return the cgroup_subsys_state for the (task, subsys_id) pair. The synchronization rules are the same as task_css_set_check — that's the whole vibe, bestie 💖

👑 SEE ALSO 👑

Kernel file ./include/linux/cgroup.h — and the whole friend group is right here:

• cgroup_subsys_enabled(9)
• cgroup_subsys_on_dfl(9)
• css_for_each_child(9)
• css_for_each_descendant_pre(9)
• css_for_each_descendant_post(9)
• cgroup_taskset_for_each(9)
• cgroup_taskset_for_each_leader(9)
• cgroup_css(9)
• css_is_dying(9)
• task_css_set_check(9)
• task_css_set(9)
• task_css(9)
• task_get_css(9)
• task_css_is_root(9)
• cgroup_is_descendant(9)
• cgroup_ancestor(9)
• cgroup_common_ancestor(9)
• task_under_cgroup_hierarchy(9)

okurrr that's the page! source/version: ./include/linux · date: October 2026 · page: task_css_check(9) signing off — mwah 💋✨