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614384533d
Add a per-cpu monitor as part of the sched model:
* opid: operations with preemption and irq disabled
Monitor to ensure wakeup and need_resched occur with irq and
preemption disabled or in irq handlers.
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tomas Glozar <tglozar@redhat.com>
Cc: Juri Lelli <jlelli@redhat.com>
Cc: Clark Williams <williams@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
Link: https://lore.kernel.org/20250728135022.255578-10-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
Acked-by: Nam Cao <namcao@linutronix.de>
Tested-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
35 lines
1.5 KiB
Text
35 lines
1.5 KiB
Text
digraph state_automaton {
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center = true;
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size = "7,11";
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{node [shape = plaintext, style=invis, label=""] "__init_disabled"};
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{node [shape = circle] "disabled"};
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{node [shape = doublecircle] "enabled"};
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{node [shape = circle] "enabled"};
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{node [shape = circle] "in_irq"};
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{node [shape = circle] "irq_disabled"};
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{node [shape = circle] "preempt_disabled"};
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"__init_disabled" -> "disabled";
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"disabled" [label = "disabled"];
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"disabled" -> "disabled" [ label = "sched_need_resched\nsched_waking\nirq_entry" ];
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"disabled" -> "irq_disabled" [ label = "preempt_enable" ];
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"disabled" -> "preempt_disabled" [ label = "irq_enable" ];
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"enabled" [label = "enabled", color = green3];
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"enabled" -> "enabled" [ label = "preempt_enable" ];
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"enabled" -> "irq_disabled" [ label = "irq_disable" ];
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"enabled" -> "preempt_disabled" [ label = "preempt_disable" ];
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"in_irq" [label = "in_irq"];
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"in_irq" -> "enabled" [ label = "irq_enable" ];
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"in_irq" -> "in_irq" [ label = "sched_need_resched\nsched_waking\nirq_entry" ];
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"irq_disabled" [label = "irq_disabled"];
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"irq_disabled" -> "disabled" [ label = "preempt_disable" ];
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"irq_disabled" -> "enabled" [ label = "irq_enable" ];
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"irq_disabled" -> "in_irq" [ label = "irq_entry" ];
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"irq_disabled" -> "irq_disabled" [ label = "sched_need_resched" ];
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"preempt_disabled" [label = "preempt_disabled"];
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"preempt_disabled" -> "disabled" [ label = "irq_disable" ];
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"preempt_disabled" -> "enabled" [ label = "preempt_enable" ];
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{ rank = min ;
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"__init_disabled";
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"disabled";
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}
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}
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