STRUCT PERF_EVENT_CONTEXT(9)

🌸 struct perf_event_context(9) 🌸

okay bestie, so this is a page out of the Kernel API Manual — the manual name, yeah — and today's main character is struct perf_event_context, aka the event context structure. pull up a chair, we're doing kernel structs 💅

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✨ NAME ✨

struct perf_event_context — literally the event context structure. that's the whole name, no cap 🎀

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🦋 SYNOPSIS 🦋

here she is, in all her glory, bestie — copy it exactly, don't you dare touch a character:

struct perf_event_context {
    raw_spinlock_t lock;
    struct mutex                    mutex;
    struct list_head                pmu_ctx_list;
    struct perf_event_groups        pinned_groups;
    struct perf_event_groups        flexible_groups;
    struct list_head                event_list;
    int nr_events;
    int nr_user;
    int is_active;
    int nr_stat;
    int nr_freq;
    int rotate_disable;
    refcount_t refcount;
    struct task_struct              *task;
    struct perf_time_ctx            time;
    struct perf_time_ctx            timeguest;
    struct perf_event_context       *parent_ctx;
    u64 parent_gen;
    u64 generation;
    int pin_count;
  #ifdef CONFIG_CGROUP_PERF;
    int nr_cgroups;
  #endif;
    struct rcu_head                 rcu_head;
    local_t nr_no_switch_fast;
 };

like… look at her. the alignment. the way she's formatted. she ate and left absolutely no crumbs 🍓 (and yes, the #ifdef CONFIG_CGROUP_PERF; really does have those semicolons hanging out — we do not fix it, we respect it, periodt)

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🎀 Members 🎀

this section is literally just sitting there with its heading on and no content underneath, so we're not gonna invent a member breakdown out of thin air — that would be lying and lying is not the vibe 🙈 if you want the details, that's what the header file is for, iykyk.

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💖 Description 💖

so what is she? the page says it plain and simple: struct perf_event_context is used as a container for task events and CPU events as well. that's it, that's the whole description — container energy, holding her little events, minding her business 👑

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🌈 SEE ALSO 🌈

go read these, bestie, they're all right there in the kernel file ./include/linux/perf_event.h:

• struct hw_perf_event(9)
• struct pmu(9)
• struct perf_addr_filter(9)
• struct perf_addr_filters_head(9)
• struct perf_event(9)
• struct perf_ctx_data(9)

collect them all like little trading cards, fr fr 🫶

heads up bestie: everything above is straight from the page — i'm not adding extra lore, no guessing, no made-up behaviour. facts stay facts, only the vibe is new 💜

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okay that's the whole page, you're officially educated ✨ this little gem lives over in ./include/linux, dated October 2026, and she's page struct perf_event_context(9) of the Kernel API Manual — mwah, slay, go read a header file for me 🧚💖