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authorFrederic Weisbecker2022-06-08 16:40:26 +0200
committerPaul E. McKenney2022-07-05 13:32:59 -0700
commit6f0e6c1598b1a3d19fc30db86b6e26d6f881b43d (patch)
treef6ce7f78ab37fc235f67c3bf40f0a94cefadd6dc /kernel/trace
parente67198cc05b8ecbb7b8e2d8ef9fb5c8d26821873 (diff)
context_tracking: Take IRQ eqs entrypoints over RCU
The RCU dynticks counter is going to be merged into the context tracking subsystem. Prepare with moving the IRQ extended quiescent states entrypoints to context tracking. For now those are dumb redirection to existing RCU calls. [ paulmck: Apply Stephen Rothwell feedback from -next. ] [ paulmck: Apply Nathan Chancellor feedback. ] Acked-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com> Cc: Uladzislau Rezki <uladzislau.rezki@sony.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Nicolas Saenz Julienne <nsaenz@kernel.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Xiongfeng Wang <wangxiongfeng2@huawei.com> Cc: Yu Liao <liaoyu15@huawei.com> Cc: Phil Auld <pauld@redhat.com> Cc: Paul Gortmaker<paul.gortmaker@windriver.com> Cc: Alex Belits <abelits@marvell.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Nicolas Saenz Julienne <nsaenzju@redhat.com> Tested-by: Nicolas Saenz Julienne <nsaenzju@redhat.com>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/trace.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 2c95992e2c71..fe78a6818126 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3107,15 +3107,15 @@ void __trace_stack(struct trace_array *tr, unsigned int trace_ctx,
/*
* When an NMI triggers, RCU is enabled via rcu_nmi_enter(),
* but if the above rcu_is_watching() failed, then the NMI
- * triggered someplace critical, and rcu_irq_enter() should
+ * triggered someplace critical, and ct_irq_enter() should
* not be called from NMI.
*/
if (unlikely(in_nmi()))
return;
- rcu_irq_enter_irqson();
+ ct_irq_enter_irqson();
__ftrace_trace_stack(buffer, trace_ctx, skip, NULL);
- rcu_irq_exit_irqson();
+ ct_irq_exit_irqson();
}
/**