Commit-ID: facc4e159672b4ed10aa18147bfa187b013c9505
Gitweb: http://git.kernel.org/tip/facc4e159672b4ed10aa18147bfa187b013c9505
Author: Frederic Weisbecker <fweisbec@xxxxxxxxx>
AuthorDate: Mon, 28 Nov 2011 16:26:56 -0800
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Sun, 11 Dec 2011 10:32:08 -0800
rcu: Irq nesting is always 0 on rcu_enter_idle_common
Because tasks don't nest, the ->dyntick_nesting must always be zero upon
entry to rcu_idle_enter_common(). Therefore, pass "0" rather than the
counter itself.
Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcutree.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 860c02c..c0ed376 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -350,12 +350,11 @@ static int rcu_implicit_offline_qs(struct rcu_data *rdp)
*/
static void rcu_idle_enter_common(struct rcu_dynticks *rdtp, long long oldval)
{
- trace_rcu_dyntick("Start", oldval, rdtp->dynticks_nesting);
+ trace_rcu_dyntick("Start", oldval, 0);
if (!is_idle_task(current)) {
struct task_struct *idle = idle_task(smp_processor_id());
- trace_rcu_dyntick("Error on entry: not idle task",
- oldval, rdtp->dynticks_nesting);
+ trace_rcu_dyntick("Error on entry: not idle task", oldval, 0);
ftrace_dump(DUMP_ALL);
WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
current->pid, current->comm,
--
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