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    Subject[PATCH tip/core/rcu 5/6] rcu: add rnp->blocked_tasks to tracing
    Date
    From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

    Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
    ---
    kernel/rcutree_trace.c | 7 +++++--
    1 files changed, 5 insertions(+), 2 deletions(-)

    diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
    index 4b31c77..f9d01a3 100644
    --- a/kernel/rcutree_trace.c
    +++ b/kernel/rcutree_trace.c
    @@ -155,12 +155,13 @@ static const struct file_operations rcudata_csv_fops = {

    static void print_one_rcu_state(struct seq_file *m, struct rcu_state *rsp)
    {
    + long gpnum;
    int level = 0;
    struct rcu_node *rnp;

    seq_printf(m, "c=%ld g=%ld s=%d jfq=%ld j=%x "
    "nfqs=%lu/nfqsng=%lu(%lu) fqlh=%lu oqlen=%ld\n",
    - rsp->completed, rsp->gpnum, rsp->signaled,
    + rsp->completed, gpnum = rsp->gpnum, rsp->signaled,
    (long)(rsp->jiffies_force_qs - jiffies),
    (int)(jiffies & 0xffff),
    rsp->n_force_qs, rsp->n_force_qs_ngp,
    @@ -171,8 +172,10 @@ static void print_one_rcu_state(struct seq_file *m, struct rcu_state *rsp)
    seq_puts(m, "\n");
    level = rnp->level;
    }
    - seq_printf(m, "%lx/%lx %d:%d ^%d ",
    + seq_printf(m, "%lx/%lx %c>%c %d:%d ^%d ",
    rnp->qsmask, rnp->qsmaskinit,
    + "T."[list_empty(&rnp->blocked_tasks[gpnum & 1])],
    + "T."[list_empty(&rnp->blocked_tasks[!(gpnum & 1)])],
    rnp->grplo, rnp->grphi, rnp->grpnum);
    }
    seq_puts(m, "\n");
    --
    1.5.2.5


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