wb_memcg_offline(9)

🎀 NAME 🎀

okay so bestie, this is wb_memcg_offline(9) from the Kernel API Manual — and the name is literally kill all wb's associated with a memcg being offlined. no cap, that's the whole vibe. 💖

✨ SYNOPSIS ✨

here's the exact signature, bestie — copy it character for character:

void wb_memcg_offline (struct mem_cgroup *memcg );

it's giving void, so nothing comes back; it just does the offline thing. 💅

🧚 ARGUMENTS 🧚

• memcg — the memcg being offlined. that's the one and only arg, periodt. 🫶

🔥 DESCRIPTION 🔥

so beyond the whole "kill all wb's associated with a memcg being offlined" main-character move, this function also prevents creation of any new wb's associated with memcg. literally no new ones allowed, iykyk. 💅

🌈 SEE ALSO 🌈

go check out these besties:

• Kernel file ./mm/backing-dev.c
• wb_get_lookup(9)
• wb_get_create(9)
• wb_blkcg_offline(9)
• bdi_get_by_id(9)

mwah 💋 — source/version: ./mm, date: October 2026, page: wb_memcg_offline(9). byeee 🫶✨