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    Subject[PATCH 1/6] softirq: Export in_serving_softirq()
    From: John Kacur <jkacur@redhat.com>

    ERROR: "in_serving_softirq" [net/sched/cls_cgroup.ko] undefined!

    The above can be fixed by exporting in_serving_softirq

    Link: http://lkml.kernel.org/r/1321235083-21756-2-git-send-email-jkacur@redhat.com

    Cc: stable-rt@vger.kernel.org
    Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
    Signed-off-by: John Kacur <jkacur@redhat.com>
    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
    ---
    kernel/softirq.c | 1 +
    1 files changed, 1 insertions(+), 0 deletions(-)

    diff --git a/kernel/softirq.c b/kernel/softirq.c
    index e8756aa..026a283 100644
    --- a/kernel/softirq.c
    +++ b/kernel/softirq.c
    @@ -447,6 +447,7 @@ int in_serving_softirq(void)
    preempt_enable();
    return res;
    }
    +EXPORT_SYMBOL(in_serving_softirq);

    /*
    * Called with bh and local interrupts disabled. For full RT cpu must
    --
    1.7.7.1

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