resctrl_arch...alloc_enable(9)

💅 resctrl_arch_io_alloc_enable — a Kernel API Manual moment ✨

okay so bestie, welcome to the Kernel API Manual — this one's a little function with big "turn the thing on or off" energy, and honestly? she's serving simplicity. let's get into it 🎀

---

🌸 NAME 🌸

resctrl_arch_io_alloc_enable — literally just enable/disable the io_alloc feature. that's the whole vibe. no cap. 💅

✨ SYNOPSIS ✨

int resctrl_arch_io_alloc_enable (struct rdt_resource *r , bool enable
);

look at her. two args, one int return, zero drama. iconic 🫶

🦋 ARGUMENTS 🦋

• r — the resctrl resource, aka the main character of this whole operation 💖
• enable — flip it on (true) or off (false) for io_alloc on resource r. that's it, that's the toggle 🌈

🧚 DESCRIPTION 🧚

so like, here's the tea: this can be called from any CPU. literally any of them. no pinning required, no "you must be on this CPU" gatekeeping, she's flexible like that ✨

⭐ RETURN ⭐

• 0 on success 🎉 (slay)
• <0 on error 😭 (not slay, but we move)

👑 SEE ALSO 👑

the kernel file lives at ./include/linux/resctrl.h — go say hi to the whole friend group over there 💜

• enum resctrl_conf_type(9)
• struct resctrl_staged_config(9)
• struct rdt_domain_hdr(9)
• struct rdt_ctrl_domain(9)
• struct mbm_cntr_cfg(9)
• struct rdt_l3_mon_domain(9)
• struct resctrl_cache(9)
• enum membw_throttle_mode(9)
• struct resctrl_membw(9)
• enum resctrl_schema_fmt(9)
• struct resctrl_mon(9)
• struct rdt_resource(9)
• struct resctrl_schema(9)
• resctrl_arch_sync_cpu_closid_rmid(9)
• resctrl_get_default_ctrl(9)
• resctrl_arch_mon_event_config_write(9)
• resctrl_arch_mon_event_config_read(9)
• resctrl_arch_mbm_cntr_assign_enabled(9)
• resctrl_arch_mbm_cntr_assign_set(9)
• resctrl_arch_rmid_read(9)
• resctrl_arch_rmid_read_context_check(9)
• resctrl_find_domain(9)
• resctrl_arch_reset_rmid(9)
• resctrl_arch_reset_rmid_all(9)
• resctrl_arch_reset_all_ctrls(9)
• resctrl_arch_config_cntr(9)
• resctrl_arch_cntr_read(9)
• resctrl_arch_reset_cntr(9)
• resctrl_arch_get_io_alloc_enabled(9)

---

so yeah, that's the whole page bestie 🍓 go forth and toggle responsibly.

this came out of ./include/linux, dated October 2026, and the header on the tin says resctrl_arch...alloc_enable(9) — mwah 💋 ok bye, love u, see u in the man pages 🧚‍♀️💖✨