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tools lib traceevent: Remove tep filter trivial APIs

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This patch removes trivial filter tep APIs:

  enum tep_filter_trivial_type
  tep_filter_event_has_trivial()
  tep_update_trivial()
  tep_filter_clear_trivial()

Trivial filters is an optimization, used only in the first version of
KernelShark. The API is deprecated, the next KernelShark release does
not use it.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20190326154328.28718-4-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164343.968458918@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Tzvetomir Stoyanov 2019-04-01 12:43:14 -04:00 committed by Arnaldo Carvalho de Melo
parent 2ce4639f69
commit a634b278ec
2 changed files with 0 additions and 185 deletions
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16
tools/lib/traceevent/event-parse.h
View File

@ -732,12 +732,6 @@ struct tep_event_filter *tep_filter_alloc(struct tep_handle *pevent);
#define FILTER_MISS TEP_ERRNO__FILTER_MISS
#define FILTER_MATCH TEP_ERRNO__FILTER_MATCH
enum tep_filter_trivial_type {
TEP_FILTER_TRIVIAL_FALSE,
TEP_FILTER_TRIVIAL_TRUE,
TEP_FILTER_TRIVIAL_BOTH,
};
enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter,
const char *filter_str);
@ -752,9 +746,6 @@ int tep_event_filtered(struct tep_event_filter *filter,
void tep_filter_reset(struct tep_event_filter *filter);
int tep_filter_clear_trivial(struct tep_event_filter *filter,
enum tep_filter_trivial_type type);
void tep_filter_free(struct tep_event_filter *filter);
char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
@ -762,15 +753,8 @@ char *tep_filter_make_string(struct tep_event_filter *filter, int event_id);
int tep_filter_remove_event(struct tep_event_filter *filter,
int event_id);
int tep_filter_event_has_trivial(struct tep_event_filter *filter,
int event_id,
enum tep_filter_trivial_type type);
int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *source);
int tep_update_trivial(struct tep_event_filter *dest, struct tep_event_filter *source,
enum tep_filter_trivial_type type);
int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter *filter2);
#endif /* _PARSE_EVENTS_H */

169
tools/lib/traceevent/parse-filter.c
View File

@ -1522,167 +1522,6 @@ int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *sour
return ret;
}
/**
* tep_update_trivial - update the trivial filters with the given filter
* @dest - the filter to update
* @source - the filter as the source of the update
* @type - the type of trivial filter to update.
*
* Scan dest for trivial events matching @type to replace with the source.
*
* Returns 0 on success and -1 if there was a problem updating, but
* events may have still been updated on error.
*/
int tep_update_trivial(struct tep_event_filter *dest, struct tep_event_filter *source,
enum tep_filter_trivial_type type)
{
struct tep_handle *src_pevent;
struct tep_handle *dest_pevent;
struct tep_event *event;
struct tep_filter_type *filter_type;
struct tep_filter_arg *arg;
char *str;
int i;
src_pevent = source->pevent;
dest_pevent = dest->pevent;
/* Do nothing if either of the filters has nothing to filter */
if (!dest->filters || !source->filters)
return 0;
for (i = 0; i < dest->filters; i++) {
filter_type = &dest->event_filters[i];
arg = filter_type->filter;
if (arg->type != TEP_FILTER_ARG_BOOLEAN)
continue;
if ((arg->boolean.value && type == TEP_FILTER_TRIVIAL_FALSE) ||
(!arg->boolean.value && type == TEP_FILTER_TRIVIAL_TRUE))
continue;
event = filter_type->event;
if (src_pevent != dest_pevent) {
/* do a look up */
event = tep_find_event_by_name(src_pevent,
event->system,
event->name);
if (!event)
return -1;
}
str = tep_filter_make_string(source, event->id);
if (!str)
continue;
/* Don't bother if the filter is trivial too */
if (strcmp(str, "TRUE") != 0 && strcmp(str, "FALSE") != 0)
filter_event(dest, event, str, NULL);
free(str);
}
return 0;
}
/**
* tep_filter_clear_trivial - clear TRUE and FALSE filters
* @filter: the filter to remove trivial filters from
* @type: remove only true, false, or both
*
* Removes filters that only contain a TRUE or FALES boolean arg.
*
* Returns 0 on success and -1 if there was a problem.
*/
int tep_filter_clear_trivial(struct tep_event_filter *filter,
enum tep_filter_trivial_type type)
{
struct tep_filter_type *filter_type;
int count = 0;
int *ids = NULL;
int i;
if (!filter->filters)
return 0;
/*
* Two steps, first get all ids with trivial filters.
* then remove those ids.
*/
for (i = 0; i < filter->filters; i++) {
int *new_ids;
filter_type = &filter->event_filters[i];
if (filter_type->filter->type != TEP_FILTER_ARG_BOOLEAN)
continue;
switch (type) {
case TEP_FILTER_TRIVIAL_FALSE:
if (filter_type->filter->boolean.value)
continue;
break;
case TEP_FILTER_TRIVIAL_TRUE:
if (!filter_type->filter->boolean.value)
continue;
default:
break;
}
new_ids = realloc(ids, sizeof(*ids) * (count + 1));
if (!new_ids) {
free(ids);
return -1;
}
ids = new_ids;
ids[count++] = filter_type->event_id;
}
if (!count)
return 0;
for (i = 0; i < count; i++)
tep_filter_remove_event(filter, ids[i]);
free(ids);
return 0;
}
/**
* tep_filter_event_has_trivial - return true event contains trivial filter
* @filter: the filter with the information
* @event_id: the id of the event to test
* @type: trivial type to test for (TRUE, FALSE, EITHER)
*
* Returns 1 if the event contains a matching trivial type
* otherwise 0.
*/
int tep_filter_event_has_trivial(struct tep_event_filter *filter,
int event_id,
enum tep_filter_trivial_type type)
{
struct tep_filter_type *filter_type;
if (!filter->filters)
return 0;
filter_type = find_filter_type(filter, event_id);
if (!filter_type)
return 0;
if (filter_type->filter->type != TEP_FILTER_ARG_BOOLEAN)
return 0;
switch (type) {
case TEP_FILTER_TRIVIAL_FALSE:
return !filter_type->filter->boolean.value;
case TEP_FILTER_TRIVIAL_TRUE:
return filter_type->filter->boolean.value;
default:
return 1;
}
}
static int test_filter(struct tep_event *event, struct tep_filter_arg *arg,
struct tep_record *record, enum tep_errno *err);
@ -2409,14 +2248,6 @@ int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter
break;
if (filter_type1->filter->type != filter_type2->filter->type)
break;
switch (filter_type1->filter->type) {
case TEP_FILTER_TRIVIAL_FALSE:
case TEP_FILTER_TRIVIAL_TRUE:
/* trivial types just need the type compared */
continue;
default:
break;
}
/* The best way to compare complex filters is with strings */
str1 = arg_to_str(filter1, filter_type1->filter);
str2 = arg_to_str(filter2, filter_type2->filter);