cgroup_tasks..._each_leader(9)

💅 cgroup_tasks..._each_leader(9)

okay so bestie, welcome to the Kernel API Manual page for cgroup_tasks..._each_leader — yes the title is literally abbreviated with dots, that's just how the man page header rolls, no cap 🎀

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✨ NAME ✨

cgroup_taskset_for_each_leader — iterate group leaders in a cgroup_taskset 🦋

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🌸 SYNOPSIS 🌸

cgroup_taskset_for_each_leader (leader , dst_css , tset );

that's it, that's the whole vibe. three args, one loop, iconic behavior 👑

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🎀 ARGUMENTS 🎀

• leader — the loop cursor 💫 like, this is the variable you're using to walk through everything, she's the main character of the loop
• dst_css — the destination css 🧚 your target css, the place these tasks are headed
• tset — taskset to iterate 🌈 the actual cgroup_taskset you're looping over

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💖 DESCRIPTION 💖

Iterate threadgroup leaders of tset. 🫶

and here's the lil caveat you gotta know, bestie: for single-task migrations, tset may not contain any. 😭 like literally none. so don't be out here assuming there's always something to find, okay? vibe check your tset first 💀

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⭐ SEE ALSO ⭐

Kernel file ./include/linux/cgroup.h 📁 — and the whole friend group of related functions, all of them, here we go:

• 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_css(9)
• css_is_dying(9)
• task_css_set_check(9)
• task_css_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)

no gatekeeping here, the whole group chat is invited 💜

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okay and that's the page!! 🍓 this lil beauty lives over in ./include/linux and it's stamped October 2026 — same header name cgroup_tasks..._each_leader(9) up top and down at the bottom, because symmetry is slay ✨ go iterate some leaders, bestie, you got this 💅🔥