1TRACE_IRQ_HANDLER_EN(9)               IRQ              TRACE_IRQ_HANDLER_EN(9)
2
3
4

NAME

6       trace_irq_handler_entry - called immediately before the irq action
7       handler
8

SYNOPSIS

10       void trace_irq_handler_entry(int irq, struct irqaction * action);
11

ARGUMENTS

13       irq
14           irq number
15
16       action
17           pointer to struct irqaction
18

DESCRIPTION

20       The struct irqaction pointed to by action contains various information
21       about the handler, including the device name, action->name, and the
22       device id, action->dev_id. When used in conjunction with the
23       irq_handler_exit tracepoint, we can figure out irq handler latencies.
24

AUTHOR

26       Jason Baron <jbaron@redhat.com>
27           Author.
28
30Kernel Hackers Manual 2.6.         June 2019           TRACE_IRQ_HANDLER_EN(9)
Impressum