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authorJosh Stone <jistone@redhat.com>2009-11-10 02:05:22 -0800
committerJosh Stone <jistone@redhat.com>2009-11-10 02:05:22 -0800
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-.\" -*- nroff -*-
-.TH STAPPROBES.SNMP 3stap 2009-05-11 "IBM"
-.SH NAME
-stapprobes.irq \- Systemtap probes for IRQ, workqueue,etc
-
-.\" macros
-.de SAMPLE
-.br
-.RS
-.nf
-.nh
-..
-.de ESAMPLE
-.hy
-.fi
-.RE
-..
-
-.SH DESCRIPTION
-
-Probe points for probing irq handler execution, softirqs, workqueues,etc
-
-.P
-.TP
-.B workqueue.create
-probes creation of a new workqueue
-
-.B Arguments:
-.I wq_thread
- task_struct of the workqueue thread.
-.I cpu
- cpu for which the worker thread is created.
-
-.P
-.TP
-.B workqueue.insert
-probes queuing of work on a workqueue.
-
-.B Arguments:
-.I wq_thread
- task_struct of the workqueue thread.
-.I work
- work_struct* being executed.
-.I work_func
- pointer to handler func.
-
-.P
-.TP
-.B workqueue.execute
-probes execution of deferred work.
-
-.B Arguments:
-.I wq_thread
- task_struct of the workqueue thread.
-.I work
- work_struct* being executed.
-.I work_func
- pointer to handler func.
-
-.P
-.TP
-.B workqueue.destroy
-probes destruction of each worker thread of each cpu for a workqueue.
-
-.B Arguments:
-.I wq_thread
- task_struct of the workqueue thread.
-
-.P
-.TP
-.B irq_handler.entry
-Fires prior to execution of interrupt handler.
-.B Arguments:
-.I irq
- irq number
-.I action
- struct irqaction* for this interrupt number
-.I handler
- interrupt handler function
-.I flags
- flags for this irq.
-.I flags_str
- A formatted string of flags.
-.I dev_name
- name of device
-.I dev_id
- cookie to identify device
-.I next_irqaction
- pointer to next irqaction for shared interrupts
-.I dir
- pointer to the /proc/irq/NN/name entry
-.I thread_fn
- interrupt handler function for threaded interrupts
-.I thread
- thread pointer for threaded interrupts
-.I thread_flags
- flags related to thread
-
-.P
-.TP
-.B irq_handler.exit
-Fires post execution of interrupt handler.
-.B Arguments:
-.I irq
- irq number
-.I action
- struct irqaction* for this interrupt number
-.I ret
- return value from interrupt handler that just executed.
-.I handler
- interrupt handler function
-.I flags
- flags for this irq.
-.I flags_str
- A formatted string of flags.
-.I dev_name
- name of device
-.I dev_id
- cookie to identify device
-.I next_irqaction
- pointer to next irqaction for shared interrupts
-.I dir
-.I thread_fn
- interrupt handler function for threaded interrupts
-.I thread
- thread pointer for threaded interrupts
-.I thread_flags
- flags related to thread
-
-.P
-.TP
-.B softirq.entry
-triggered just before executing handler for a pending softirq
-.I h
- struct softirq* for current pending softirq.
-.I vec
- softirq_action vector
-.I action
- pointer to softirq handler just about to execute.
-
-.P
-.TP
-.B softirq.exit
-triggered just after executing handler for a pending softirq
-.I h
- struct softirq* for just executed softirq.
-.I vec
- softirq_action vector
-.I action
- pointer to softirq handler that just finished execution.
-
-.SH SEE ALSO
-.IR stap (1),
-.IR stapprobes (3stap)
-