__memcg_kmem_charge_page(9)

📦 version 7.3.1, in nixpkgs unstable

💖 __memcg_kmem_charge_page — the girlies' guide 💖

okay so bestie, quick vibe check: this page is from the Kernel API Manual (section 9, kernel developer land 🧚), and honestly? the name is a whole mouthful but the job is chef's kiss simple. let's get into it ✨

🌸 SYNOPSIS 🌸

int __memcg_kmem_charge_page (struct page *page , gfp_t gfp , int order );

like, she returns an int, she takes three things, and she's serving main character energy in mm/memcontrol.c. periodt 💅

🎀 ARGUMENTS 🎀

  • page — the struct page * you wanna charge. that's the actual page being charged, bestie, no cap 🫶
  • gfp — the reclaim mode 🔥 (yes, the gfp_t one, you know her)
  • order — the allocation order, lowkey important ngl 🦋

⭐ DESCRIPTION ⭐

so what does she do? she charges a kmem page to the current memory cgroup. that's the whole vibe 💜

and what does she give back?

  • returns 0 on success 👑
  • returns an error code on failure 😭

that's literally it. no hidden lore, no plot twist. iconic of her fr fr 🍓

🌈 SEE ALSO 🌈

okay this list is LONG, like not me scrolling, so buckle in bestie 🫶 — every single one of these, in order:

and if you're wondering where she actually lives? kernel file ./mm/memcontrol.c — that's her address, iykyk 🏠💅

🫶 friendly reminder bestie: if it fails, it hands you back an error code, not 0. don't be out here treating every return like a success, that's giving bug report energy 😭

and that's the whole page, diva ✨ this icon was brought to you by the kernel docs crew, source ./mm, dated October 2026 — see you in the next man page, mwah 💋🎀🦋

📦 where this page comes from