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trace_softirq_entry
Langue: en
Version: October 2010 (fedora - 01/12/10)
Section: 9 (Appels noyau Linux)
NAME
trace_softirq_entry - called immediately before the softirq handlerSYNOPSIS
- void trace_softirq_entry(struct softirq_action * h, struct softirq_action * vec);
ARGUMENTS
h
- pointer to struct softirq_action
vec
- pointer to first struct softirq_action in softirq_vec array
DESCRIPTION
The h parameter, contains a pointer to the struct softirq_action which has a pointer to the action handler that is called. By subtracting the vec pointer from the h pointer, we can determine the softirq number. Also, when used in combination with the softirq_exit tracepoint we can determine the softirq latency.
AUTHORS
Jason Baron <jbaron@redhat.com>
- Author.
William Cohen <wcohen@redhat.com>
- Author.
COPYRIGHT
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre