[PATCH V6 4/7] perf evsel: Add a backpointer to the evlist a evsel is in
From: Arnaldo Carvalho de Melo
So that functions that deal primarily with an evsel to access
information that concerns the whole evlist it is in.
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: Kan Liang
---
tools/perf/util/evlist.c | 2 ++
tools/perf/util/evsel.c | 2 ++
tools/perf/util/evsel.h | 4
3 files changed, 8 insertions(+)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 373f65b..a8cc440 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -98,6 +98,7 @@ static void perf_evlist__purge(struct perf_evlist *evlist)
evlist__for_each_safe(evlist, n, pos) {
list_del_init(>node);
+ pos->evlist = NULL;
perf_evsel__delete(pos);
}
@@ -125,6 +126,7 @@ void perf_evlist__delete(struct perf_evlist *evlist)
void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
{
+ entry->evlist = evlist;
list_add_tail(>node, >entries);
entry->idx = evlist->nr_entries;
entry->tracking = !entry->idx;
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index b096ef7..bac25f4 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -206,6 +206,7 @@ void perf_evsel__init(struct perf_evsel *evsel,
evsel->leader = evsel;
evsel->unit= "";
evsel->scale = 1.0;
+ evsel->evlist = NULL;
INIT_LIST_HEAD(>node);
INIT_LIST_HEAD(>config_terms);
perf_evsel__object.init(evsel);
@@ -1026,6 +1027,7 @@ void perf_evsel__close_fd(struct perf_evsel *evsel, int
ncpus, int nthreads)
void perf_evsel__exit(struct perf_evsel *evsel)
{
assert(list_empty(>node));
+ assert(evsel->evlist == NULL);
perf_evsel__free_fd(evsel);
perf_evsel__free_id(evsel);
perf_evsel__free_config_terms(evsel);
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 93ac6b1..298e6bb 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -60,6 +60,9 @@ struct perf_evsel_config_term {
/** struct perf_evsel - event selector
*
+ * @evlist - evlist this evsel is in, if it is in one.
+ * @node - To insert it into evlist->entries or in other list_heads, say in
+ * the event parsing routines.
* @name - Can be set to retain the original event name passed by the user,
* so that when showing results in tools such as 'perf stat', we
* show the name used, not some alias.
@@ -73,6 +76,7 @@ struct perf_evsel_config_term {
*/
struct perf_evsel {
struct list_headnode;
+ struct perf_evlist *evlist;
struct perf_event_attr attr;
char*filter;
struct xyarray *fd;
--
1.8.3.1
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[PATCH V6 4/7] perf evsel: Add a backpointer to the evlist a evsel is in
From: Arnaldo Carvalho de Melo a...@redhat.com
So that functions that deal primarily with an evsel to access
information that concerns the whole evlist it is in.
Signed-off-by: Arnaldo Carvalho de Melo a...@redhat.com
Signed-off-by: Kan Liang kan.li...@intel.com
---
tools/perf/util/evlist.c | 2 ++
tools/perf/util/evsel.c | 2 ++
tools/perf/util/evsel.h | 4
3 files changed, 8 insertions(+)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 373f65b..a8cc440 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -98,6 +98,7 @@ static void perf_evlist__purge(struct perf_evlist *evlist)
evlist__for_each_safe(evlist, n, pos) {
list_del_init(pos-node);
+ pos-evlist = NULL;
perf_evsel__delete(pos);
}
@@ -125,6 +126,7 @@ void perf_evlist__delete(struct perf_evlist *evlist)
void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
{
+ entry-evlist = evlist;
list_add_tail(entry-node, evlist-entries);
entry-idx = evlist-nr_entries;
entry-tracking = !entry-idx;
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index b096ef7..bac25f4 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -206,6 +206,7 @@ void perf_evsel__init(struct perf_evsel *evsel,
evsel-leader = evsel;
evsel-unit= ;
evsel-scale = 1.0;
+ evsel-evlist = NULL;
INIT_LIST_HEAD(evsel-node);
INIT_LIST_HEAD(evsel-config_terms);
perf_evsel__object.init(evsel);
@@ -1026,6 +1027,7 @@ void perf_evsel__close_fd(struct perf_evsel *evsel, int
ncpus, int nthreads)
void perf_evsel__exit(struct perf_evsel *evsel)
{
assert(list_empty(evsel-node));
+ assert(evsel-evlist == NULL);
perf_evsel__free_fd(evsel);
perf_evsel__free_id(evsel);
perf_evsel__free_config_terms(evsel);
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 93ac6b1..298e6bb 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -60,6 +60,9 @@ struct perf_evsel_config_term {
/** struct perf_evsel - event selector
*
+ * @evlist - evlist this evsel is in, if it is in one.
+ * @node - To insert it into evlist-entries or in other list_heads, say in
+ * the event parsing routines.
* @name - Can be set to retain the original event name passed by the user,
* so that when showing results in tools such as 'perf stat', we
* show the name used, not some alias.
@@ -73,6 +76,7 @@ struct perf_evsel_config_term {
*/
struct perf_evsel {
struct list_headnode;
+ struct perf_evlist *evlist;
struct perf_event_attr attr;
char*filter;
struct xyarray *fd;
--
1.8.3.1
--
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