mem_cgroup_sk_uncharge(9)

🎀 mem_cgroup_sk_uncharge(9) 🎀

okay bestie, welcome to mem_cgroup_sk_uncharge(9) from the Kernel API Manual — this is literally the page about uncharging socket memory, and it's giving “small function, big cleanup energy” 💅✨

🌸 NAME 🌸

mem_cgroup_sk_uncharge — uncharge socket memory. periodt 💖

✨ SYNOPSIS ✨

void mem_cgroup_sk_uncharge (const struct sock *sk , unsigned int nr_pages );

it's a void situation, so no return-value drama here, bestie 🫶

🦋 ARGUMENTS 🦋

• sk — the socket in memcg to uncharge 👑
• nr_pages — the number of pages to uncharge, no cap 🎀

💖 SEE ALSO 💖

Kernel file ./mm/memcontrol.c, plus all these iconic besties:

• get_mem_cgroup_css_from_folio(9)
• page_cgroup_ino(9)
• lruvec_page_state_monotonic(9)
• mod_memcg_state(9)
• mod_lruvec_state(9)
• count_memcg_events(9)
• get_mem_cgroup_from_mm(9)
• get_mem_cgroup_from_current(9)
• get_mem_cgroup_from_folio(9)
• mem_cgroup_iter(9)
• mem_cgroup_iter_break(9)
• mem_cgroup_scan_tasks(9)
• folio_lruvec_lock(9)
• folio_lruvec_lock_irq(9)
• folio_lruvec_lock_irqsave(9)
• mem_cgroup_update_lru_size(9)
• mem_cgroup_margin(9)
• mem_cgroup_print_oom_context(9)
• mem_cgroup_print_oom_meminfo(9)
• mem_cgroup_get_oom_group(9)
• consume_stock(9)
• __memcg_kmem_charge_page(9)
• __memcg_kmem_uncharge_page(9)
• mem_cgroup_wb_stats(9)
• mem_cgroup_from_private_id(9)
• mem_cgroup_css_reset(9)
• mem_cgroup_calculate_protection(9)
• mem_cgroup_charge_hugetlb(9)
• mem_cgroup_swapin_charge_folio(9)
• mem_cgroup_replace_folio(9)
• mem_cgroup_migrate(9)
• mem_cgroup_sk_charge(9)
• __mem_cgroup_try_charge_swap(9)
• __mem_cgroup_uncharge_swap(9)
• obj_cgroup_may_zswap(9)
• obj_cgroup_charge_zswap(9)
• obj_cgroup_uncharge_zswap(9)

that's the whole vibe 💖 this page comes from source/version ./mm, dated October 2026 — mwah, go uncharge those pages bestie 🫶🎀🌈