bpf_mem_cgroup_vm_events(9)

📦 version 7.3.1, in nixpkgs unstable

💅 bpf_mem_cgroup_vm_events(9) ✨

okay so real quick — this is a page from the Kernel API Manual, and it's about peeking at a memory cgroup's vm event counter. yes bestie, we're doing kernel internals today, and honestly? it's giving main character energy 🎀

🌸 NAME 🌸

bpf_mem_cgroup_vm_events — literally just read a memory cgroup's vm event counter, that's the whole gig 🫶

⭐ SYNOPSIS ⭐

__bpf_kfunc unsigned long bpf_mem_cgroup_vm_events (struct mem_cgroup
*memcg , enum vm_event_item event );

that's the signature, copy it exactly, no cap 💅

🦋 ARGUMENTS 🦋

  • memcg — the memory cgroup, aka the thing you're curious about 👀
  • event — the event id, aka which counter you wanna see 🎯

✨ DESCRIPTION ✨

okay so this one is lowkey simple and I'm obsessed: it lets you read memory cgroup event counters. that's it. that's the function. iconic behaviour, actually 🌈

you hand it a memcg and an event id, and it goes and fetches you that counter. no drama, no side quests. periodt 💜

👑 RETURN 👑

it returns the current value of the corresponding events counter, as an unsigned long. so like, the number you asked for, fresh out of the cgroup ⭐

🔥 SEE ALSO 🔥

the kernel file lives at ./mm/bpf_memcontrol.c — that's where the magic happens, iykyk 🧚

and here's the whole friend group, all (9) sections, all worth a read:

like yes, get you a kfunc family that supports you 🙈💖

so yeah, that's the page bestie! it's from ./mm, dated October 2026 — future vibes, slay 🦋 mwah, go read your memory cgroups responsibly 💅✨

📦 where this page comes from