resctrl_arc...lloc_enabled(9)

💖 resctrl_arch_get_io_alloc_enabled(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ this one's a teeny tiny little function page but it's still iconic, don't sleep on it. We're in ./include/linux/resctrl.h territory, and this is the whole vibe:

✨ NAME ✨

resctrl_arch_get_io_alloc_enabled — literally just Get io_alloc feature state. that's it, that's the whole job 🎀

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🌸 SYNOPSIS 🌸

bool resctrl_arch_get_io_alloc_enabled (struct rdt_resource *r );

like… one argument, one bool out. lowkey the most chill function in the whole resctrl family 🦋

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💅 ARGUMENTS 💅

• r — The resctrl resource. yeah that's the whole description bestie, she's a struct rdt_resource * and she's the resource you're asking about. no notes ✨

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⭐ RETURN ⭐

Returns true if io_alloc is enabled, or false if it's disabled. that's the entire plot 😭 clean, simple, no cap.

fr fr it's just a yes/no — no error codes, no negative returns to worry about, she's not gonna surprise you 🫶

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👑 SEE ALSO 👑

okay so this is the part where the page flexes its whole friend group 🌈 — every single one of these lives in the kernel file ./include/linux/resctrl.h:

• 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_io_alloc_enable(9)

(and yes, resctrl_arch_io_alloc_enable(9) at the end is basically her sibling — the enable, versus this one, the get. slay 💅)

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that's the whole page, bestie!! 🧚🍓

sign-off time 💜: this little gem comes to you from ./include/linux, dated October 2026 — go forth and check your io_alloc state, ily, byeee 🎀✨