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trace_irq_handler_entry
Langue: en
Version: October 2010 (fedora - 01/12/10)
Section: 9 (Appels noyau Linux)
NAME
trace_irq_handler_entry - called immediately before the irq action handlerSYNOPSIS
- void trace_irq_handler_entry(int irq, struct irqaction * action);
ARGUMENTS
irq
- irq number
action
- pointer to struct irqaction
DESCRIPTION
The struct irqaction pointed to by action contains various information about the handler, including the device name, action->name, and the device id, action->dev_id. When used in conjunction with the irq_handler_exit tracepoint, we can figure out irq handler latencies.
AUTHORS
Jason Baron <jbaron@redhat.com>
- Author.
William Cohen <wcohen@redhat.com>
- Author.
COPYRIGHT
Contenus ©2006-2024 Benjamin Poulain
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