From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca,
josh@joshtriplett.org, dvhltc@us.ibm.com, niv@us.ibm.com,
tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org,
Valdis.Kletnieks@vt.edu, dhowells@redhat.com, npiggin@suse.de,
jens.axboe@oracle.com,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 5/6] rcu: add rnp->blocked_tasks to tracing
Date: Wed, 14 Oct 2009 10:15:58 -0700 [thread overview]
Message-ID: <1255540559475-git-send-email-> (raw)
In-Reply-To: <20091014171517.GA13635@linux.vnet.ibm.com>
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
next prev parent reply other threads:[~2009-10-14 17:29 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-14 17:15 [PATCH tip/core/rcu 0/6] rcu: fix synchronize_rcu_expedited(), update docs, improve perf Paul E. McKenney
2009-10-14 17:15 ` [PATCH tip/core/rcu 1/6] rcu: Update trace.txt documentation to reflect recent changes Paul E. McKenney
2009-10-15 9:25 ` [tip:core/rcu] " tip-bot for Paul E. McKenney
2009-10-14 17:15 ` [PATCH tip/core/rcu 2/6] rcu: prevent RCU IPI storms in presence of high call_rcu() load Paul E. McKenney
2009-10-15 3:31 ` Nick Piggin
2009-10-15 4:37 ` Paul E. McKenney
2009-10-15 9:24 ` [tip:core/rcu] rcu: Prevent " tip-bot for Paul E. McKenney
2009-10-15 11:04 ` [PATCH tip/core/rcu 2/6] rcu: prevent " Nick Piggin
2009-10-15 11:20 ` Ingo Molnar
2009-10-15 16:07 ` Paul E. McKenney
2009-10-14 17:15 ` [PATCH tip/core/rcu 3/6] rcu: stopgap fix for synchronize_rcu_expedited() for TREE_PREEMPT_RCU Paul E. McKenney
2009-10-15 9:25 ` [tip:core/rcu] rcu: Stopgap " tip-bot for Paul E. McKenney
2009-10-14 17:15 ` [PATCH tip/core/rcu 4/6] rcu: add exports for synchronize_rcu_expedited() Paul E. McKenney
2009-10-14 17:15 ` Paul E. McKenney [this message]
2009-10-14 20:26 ` [PATCH tip/core/rcu 5/6] rcu: add rnp->blocked_tasks to tracing Josh Triplett
2009-10-14 23:36 ` Paul E. McKenney
2009-10-15 9:25 ` [tip:core/rcu] rcu: Add " tip-bot for Paul E. McKenney
2009-10-14 17:15 ` [PATCH tip/core/rcu 6/6] rcu: Update trace.txt documentation for blocked-tasks lists Paul E. McKenney
2009-10-15 9:25 ` [tip:core/rcu] " tip-bot for Paul E. McKenney
2009-10-14 20:28 ` [PATCH tip/core/rcu 0/6] rcu: fix synchronize_rcu_expedited(), update docs, improve perf Josh Triplett
2009-10-15 9:21 ` Ingo Molnar
2009-10-15 9:35 ` Josh Triplett
2009-10-15 11:19 ` Ingo Molnar
2009-10-15 16:14 ` Paul E. McKenney
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