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    Subject[PATCH 2/9] events: use DEFINE_STATIC_SRCU() to define pmus_srcu
    Date
    DEFINE_STATIC_SRCU() defines srcu struct and do init at build time.

    Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
    ---
    kernel/events/core.c | 3 +--
    1 files changed, 1 insertions(+), 2 deletions(-)

    diff --git a/kernel/events/core.c b/kernel/events/core.c
    index b0cd865..c334f26 100644
    --- a/kernel/events/core.c
    +++ b/kernel/events/core.c
    @@ -146,7 +146,7 @@ static atomic_t nr_task_events __read_mostly;

    static LIST_HEAD(pmus);
    static DEFINE_MUTEX(pmus_lock);
    -static struct srcu_struct pmus_srcu;
    +DEFINE_STATIC_SRCU(pmus_srcu);

    /*
    * perf event paranoia level:
    @@ -7396,7 +7396,6 @@ void __init perf_event_init(void)
    idr_init(&pmu_idr);

    perf_event_init_all_cpus();
    - init_srcu_struct(&pmus_srcu);
    perf_pmu_register(&perf_swevent, "software", PERF_TYPE_SOFTWARE);
    perf_pmu_register(&perf_cpu_clock, NULL, -1);
    perf_pmu_register(&perf_task_clock, NULL, -1);
    --
    1.7.4.4


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