Name
trace_softirq_raise —
called immediately when a softirq is raised
Synopsis
void trace_softirq_raise ( | 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 softirq vector number which is
raised. vec
is NULL and it means h
includes vector number not
softirq_action. When used in combination with the softirq_entry tracepoint
we can determine the softirq raise latency.