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The tss monitor currently guarantees task switches can happen only while scheduling, whereas the sncid monitor enforces scheduling occurs with interrupt disabled. Replace the monitors with a more comprehensive specification which implies both but also ensures that: * each scheduler call disable interrupts to switch * each task switch happens with interrupts disabled Cc: Ingo Molnar <mingo@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Nam Cao <namcao@linutronix.de> Cc: Tomas Glozar <tglozar@redhat.com> Cc: Juri Lelli <jlelli@redhat.com> Cc: Clark Williams <williams@redhat.com> Cc: John Kacur <jkacur@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/20250728135022.255578-8-gmonaco@redhat.com Signed-off-by: Gabriele Monaco <gmonaco@redhat.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
20 lines
636 B
Plaintext
20 lines
636 B
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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config RV_MON_STS
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depends on RV
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depends on TRACE_IRQFLAGS
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depends on RV_MON_SCHED
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default y
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select DA_MON_EVENTS_IMPLICIT
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bool "sts monitor"
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help
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Monitor to ensure relationships between scheduler and task switches
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* the scheduler is called and returns with interrupts disabled
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* each call to the scheduler has up to one switch
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* switches only happen inside the scheduler
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* each call to the scheduler disables interrupts to switch
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This monitor is part of the sched monitors collection.
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For further information, see:
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Documentation/trace/rv/monitor_sched.rst
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