apply_subsystem_event_filter

Name:apply_subsystem_event_filter

Proto:int apply_subsystem_event_filter(struct trace_subsystem_dir *dir, char *filter_string)

Type:int

Parameter:

Type	Parameter	Name
struct trace_subsystem_dir *	dir
char *	filter_string

1851

system = subsystem

1852

tr = tr

1853

struct event_filter * filter = NULL

1854

err = 0

1856

mutex_lock( & event_mutex)

1859

If Not nr_events Then

1860

1861

Go to out_unlock

1864

If Not strcmp(strstrip(filter_string), "0") Then

1865

filter_free_subsystem_preds(dir, tr)

1866

remove_filter_string(filter)

1867

filter = filter

1868

filter = NULL

1870

tracepoint_synchronize_unregister()

1871

filter_free_subsystem_filters(dir, tr)

1872

__free_filter(filter)

1873

Go to out_unlock

1876

err = reate_system_filter - create a filter for an event_subsystem*@system: event_subsystem to create a filter for*@filter_str: filter string*@filterp: out param for created filter (always updated on return)* Identical to create_filter() except that it creates

1877

If filter Then

1882

__free_filter(filter)

1883

filter = filter

1885

1886

mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.

1888

Return err

**Caller**
Name	Describe
subsystem_filter_write

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