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    Subject[PATCH 25/30] sched: fix shares boost logic
    In case the domain is empty, pretend there is a single task on each cpu, so
    that together with the boost logic we end up giving 1/n shares to each
    cpu.

    Signed-off-by: Peter Zijlstra <peterz@infradead.org>
    ---
    kernel/sched.c | 3 +++
    1 file changed, 3 insertions(+)

    Index: linux-2.6/kernel/sched.c
    ===================================================================
    --- linux-2.6.orig/kernel/sched.c
    +++ linux-2.6/kernel/sched.c
    @@ -1543,6 +1543,9 @@ tg_shares_up(struct task_group *tg, int
    if (!sd->parent || !(sd->parent->flags & SD_LOAD_BALANCE))
    shares = tg->shares;

    + if (!rq_weight)
    + rq_weight = cpus_weight(sd->span) * NICE_0_LOAD;
    +
    for_each_cpu_mask(i, sd->span) {
    struct rq *rq = cpu_rq(i);
    unsigned long flags;
    --



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