cgroup_add_dfl_cftypes(9)

🎀 cgroup_add_dfl_cftypes 🎀

okay so bestie, we're in the Kernel API Manual today and I need you to lock in for like two minutes because this one is actually so cute and small 💖

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✨ NAME ✨

cgroup_add_dfl_cftypes — adds an array of cftypes, but only for the default hierarchy. that's the whole vibe. periodt 💅

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🌸 SYNOPSIS 🌸

int cgroup_add_dfl_cftypes (struct cgroup_subsys *ss , struct cftype
*cfts );

look at that signature, it's giving "i know exactly what i'm doing" 🔥

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🦋 ARGUMENTS 🦋

• ss — the target cgroup subsystem. like, the subsystem you're doing this to. that one. 👑
• cfts — a zero-length name terminated array of cftypes. yes babes, zero-length name terminated — the array stops at the entry whose name has zero length, no cap 🙈

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💜 DESCRIPTION 💜

okay so it's similar to cgroup_add_cftypes, but here's the twist bestie: the files you add are only used for the default hierarchy. that's it. that's the whole special little guy. main character energy fr fr ✨

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🌈 SEE ALSO 🌈

this is gonna be a long one, but we don't skip, we don't scroll past, we read the whole thing. also the Kernel file is ./kernel/cgroup/cgroup.c, iykyk 🫶

cgroup_ssid_enabled(9), cgroup_on_dfl(9), cgroup_e_css_by_mask(9), cgroup_e_css(9), cgroup_get_e_css(9), __cgroup_task_count(9), cgroup_task_count(9), for_each_css(9), do_each_subsys_mask(9), css_set_populated(9), css_update_populated(9), css_set_update_populated(9), css_set_move_task(9), compare_css_sets(9), find_existing_css_set(9), allocate_cgrp_cset_links(9), link_css_set(9), find_css_set(9), cgroup_file_mode(9), cgroup_calc_subtree_ss_mask(9), cgroup_kn_unlock(9), cgroup_kn_lock_live(9), css_clear_dir(9), css_populate_dir(9), cgroup_attach_lock(9), cgroup_attach_unlock(9), cgroup_migrate_add_task(9), cgroup_taskset_first(9), cgroup_taskset_next(9), cgroup_migrate_execute(9), cgroup_migrate_vet_dst(9), cgroup_migrate_finish(9), cgroup_migrate_add_src(9), cgroup_migrate_prepare_dst(9), cgroup_migrate(9), cgroup_attach_task(9), cgroup_update_dfl_csses(9), cgroup_lock_and_drain_offline(9), cgroup_save_control(9), cgroup_propagate_control(9), cgroup_restore_control(9), cgroup_apply_control_enable(9), cgroup_apply_control_disable(9), cgroup_apply_control(9), cgroup_finalize_control(9), cgroup_enable_threaded(9), cgroup_tryget_css(9), cgroup_addrm_files(9), cgroup_rm_cftypes(9), cgroup_add_cftypes(9), cgroup_add_legacy_cftypes(9), cgroup_file_notify(9), cgroup_file_show(9), css_next_child(9), css_next_descendant_pre(9), css_rightmost_descendant(9), css_next_descendant_post(9), css_has_online_children(9), css_task_iter_advance_css_set(9), css_task_iter_start(9), css_task_iter_next(9), css_task_iter_end(9), css_create(9), kill_css_sync(9), kill_css_finish(9), cgroup_destroy_locked(9), cgroup_init_early(9), cgroup_init(9), cgroup_fork(9), cgroup_v1v2_get_from_file(9), cgroup_get_from_file(9), cgroup_css_set_fork(9), cgroup_css_set_put_fork(9), cgroup_can_fork(9), cgroup_cancel_fork(9), cgroup_post_fork(9), cgroup_task_exit(9), css_tryget_online_from_dir(9), css_from_id(9), cgroup_get_from_path(9), cgroup_v1v2_get_from_fd(9), cgroup_get_from_fd(9), cgroup_parse_float(9)

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that's the whole page bestie, you ate that 💀✨ and for the record this was shipped from ./kernel/cgroup, dated October 2026, under the cgroup_add_dfl_cftypes(9) title — go off, icon 🌸💅🎀