Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_events.c Create Date:2022-07-28 12:20:54
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:probe_remove_event_call

Proto:static int probe_remove_event_call(struct trace_event_call *call)

Type:int

Parameter:

TypeParameterName
struct trace_event_call *call
2367  cycle (tr = ({
2367  __mptr = next
2367  Do
2367  When 0 cycle
2367  __mptr - __builtin_offsetof(typeof( * tr), list)
2367  cycle (tr = ({}); & tr->list != ( & ftrace_trace_arrays);tr = ({
2367  __mptr = next
2367  Do
2367  When 0 cycle
2367  __mptr - __builtin_offsetof(typeof( * (tr)), list)
2367  }))
2367  cycle (file = ({
2367  __mptr = next
2367  Do
2367  When 0 cycle
2367  __mptr - __builtin_offsetof(typeof( * file), list)
2367  cycle (file = ({}); & file->list != ( & tr->events);file = ({
2367  __mptr = next
2367  Do
2367  When 0 cycle
2367  __mptr - __builtin_offsetof(typeof( * (file)), list)
2367  }))
2368  If event_call != call Then Continue
2375  If * 32 bit flags: * bit 0: enabled * bit 1: enabled cmd record * bit 2: enable/disable with the soft disable bit * bit 3: soft disabled * bit 4: trigger enabled * Note: The bits must be set atomically to prevent races * from other writers. Reads of flags do & EVENT_FILE_FL_ENABLED Then Return -EBUSY
2383  Break
2386  Must be called under locking of trace_types_lock, event_mutex and* trace_event_sem.
2388  Return 0
Caller
NameDescribe
trace_remove_event_callRemove an event_call