rcu: Add rnp->blocked_tasks to tracing
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: mathieu.desnoyers@polymtl.ca Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org Cc: Valdis.Kletnieks@vt.edu Cc: dhowells@redhat.com Cc: npiggin@suse.de Cc: jens.axboe@oracle.com Cc: Josh Triplett <josh@joshtriplett.org> LKML-Reference: <20091014233638.GE6763@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> kernel/rcutree_trace.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
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@ -155,12 +155,14 @@ static const struct file_operations rcudata_csv_fops = {
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static void print_one_rcu_state(struct seq_file *m, struct rcu_state *rsp)
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{
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long gpnum;
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int level = 0;
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struct rcu_node *rnp;
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gpnum = rsp->gpnum;
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seq_printf(m, "c=%ld g=%ld s=%d jfq=%ld j=%x "
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"nfqs=%lu/nfqsng=%lu(%lu) fqlh=%lu oqlen=%ld\n",
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rsp->completed, rsp->gpnum, rsp->signaled,
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rsp->completed, gpnum, rsp->signaled,
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(long)(rsp->jiffies_force_qs - jiffies),
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(int)(jiffies & 0xffff),
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rsp->n_force_qs, rsp->n_force_qs_ngp,
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@ -171,8 +173,10 @@ static void print_one_rcu_state(struct seq_file *m, struct rcu_state *rsp)
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seq_puts(m, "\n");
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level = rnp->level;
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}
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seq_printf(m, "%lx/%lx %d:%d ^%d ",
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seq_printf(m, "%lx/%lx %c>%c %d:%d ^%d ",
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rnp->qsmask, rnp->qsmaskinit,
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"T."[list_empty(&rnp->blocked_tasks[gpnum & 1])],
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"T."[list_empty(&rnp->blocked_tasks[!(gpnum & 1)])],
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rnp->grplo, rnp->grphi, rnp->grpnum);
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}
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seq_puts(m, "\n");
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