free_tmpmasks(9)

🌸 free_tmpmasks(9) 🌸

okay so bestie, welcome to free_tmpmasks(9) — straight out of the Kernel API Manual, and honestly it's giving "small function, big cleanup energy" 💅 it lives in the cpuset corner of the kernel and it does exactly one thing, but it does it iconically.

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✨ NAME ✨

free_tmpmasks — frees the cpumasks inside a tmpmasks structure 🧹✨

like, the masks were living in there rent-free, and this function is the eviction notice. periodt.

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🦋 SYNOPSIS 🦋

void free_tmpmasks (struct tmpmasks *tmp );

no cap, that's the whole signature 🫶 returns void, so don't go looking for a return value, there isn't one, she's not that kind of girl.

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🎀 ARGUMENTS 🎀

• tmp — the tmpmasks structure pointer 💖 that's it, that's the argument. it's the pointer to the tmpmasks structure you're handing over so its cpumasks can get freed.

lowkey the simplest argument list ever and we love her for it 🌈

⚠️ heads up bestie: this frees the cpumasks in the structure. don't be out here passing garbage pointers, okay? 🥺 iykyk.

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👑 SEE ALSO 👑

so this function is part of the cpuset friend group living in the kernel file ./kernel/cgroup/cpuset.c, and here's the whole squad — every single one of them, no skips, no cuts 💜:

• cpuset_lock(9)
• cpuset_full_lock(9)
• partition_is_populated(9)
• alloc_cpumasks(9)
• alloc_tmpmasks(9)
• dup_or_alloc_cpuset(9)
• free_cpuset(9)
• cpus_excl_conflict(9)
• cpuset_update_tasks_cpumask(9)
• compute_effective_cpumask(9)
• compute_effective_nodemask(9)
• rm_siblings_excl_cpus(9)
• update_parent_effective_cpumask(9)
• compute_partition_effective_cpumask(9)
• update_sibling_cpumasks(9)
• validate_partition(9)
• partition_cpus_change(9)
• update_cpumask(9)
• update_exclusive_cpumask(9)
• cpuset_update_tasks_nodemask(9)
• update_prstate(9)
• cpuset_css_alloc(9)
• cpuset_init(9)
• cpuset_hotplug_update_tasks(9)
• cpuset_handle_hotplug(9)
• cpuset_init_smp(9)
• cpuset_cpus_allowed_locked(9)
• cpuset_cpus_allowed(9)
• cpuset_cpus_allowed_fallback(9)
• cpuset_mems_allowed(9)
• cpuset_nodemask_valid_mems_allowed(9)
• cpuset_nodes_allowed(9)
• cpuset_spread_node(9)
• cpuset_mem_spread_node(9)
• cpuset_mems_allowed_intersects(9)
• cpuset_print_current_mems_allowed(9)

all of them. every last one. i counted, and then i counted again because i'm thorough like that 🍓

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and that's the page, bestie 💅 this little icon came from the source tree ./kernel/cgroup, dated October 2026 — mwah, sending you the fluffiest kernel vibes, go free those masks responsibly 🧚💖