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    SubjectRe: [RFC][PATCH 6/7] perf: use jump_label to optimize the scheduler hooks
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    On Thu, 2010-10-14 at 22:34 +0200, Peter Zijlstra wrote:
    > +static inline void perf_event_task_sched_in(struct task_struct *task)
    > +{
    > + JUMP_LABEL(&perf_task_events, have_events);
    > + return;
    > +
    > +have_events:
    > + __perf_event_task_sched_in(task);
    > +}

    OK, so I hate the JUMP_LABEL() interface for it means we have to keep
    writing these silly stubs.

    How about something like:

    #define COND_STMT(key, stmt) \
    do { \
    __label__ jl_enabled; \
    JUMP_LABEL(key, jl_enabled); \
    if (0) { \
    jl_enabled: \
    stmt; \
    } \
    } while (0)




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