[PATCH tip/core/rcu 5/6] rcu: add rnp->blocked_tasks to tracing

Paul E. McKenney
2009-10-14T17:29:40Z

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