| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Wed, 10 Jul 2019 11:57:50 +0300
From: Adrian Hunter <adrian.hunter@...el.com>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: Jiri Olsa <jolsa@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 01/21] perf db-export: Get rid of db_export__deferred()
db_export__deferred() deferred the export of comms if the comm string had
not been "set" (changed from :<pid>) however that problem was fixed a long
time ago by commit e803cf97a4f9 ("perf record: Synthesize COMM event for a
command line workload"), so get rid of db_export__deferred().
Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
tools/perf/util/db-export.c | 61 +------------------
tools/perf/util/db-export.h | 2 -
.../scripting-engines/trace-event-python.c | 4 +-
3 files changed, 2 insertions(+), 65 deletions(-)
diff --git a/tools/perf/util/db-export.c b/tools/perf/util/db-export.c
index 2182f552aac6..f36970018df3 100644
--- a/tools/perf/util/db-export.c
+++ b/tools/perf/util/db-export.c
@@ -19,70 +19,14 @@
#include "call-path.h"
#include "db-export.h"
-struct deferred_export {
- struct list_head node;
- struct comm *comm;
-};
-
-static int db_export__deferred(struct db_export *dbe)
-{
- struct deferred_export *de;
- int err;
-
- while (!list_empty(&dbe->deferred)) {
- de = list_entry(dbe->deferred.next, struct deferred_export,
- node);
- err = dbe->export_comm(dbe, de->comm);
- list_del(&de->node);
- free(de);
- if (err)
- return err;
- }
-
- return 0;
-}
-
-static void db_export__free_deferred(struct db_export *dbe)
-{
- struct deferred_export *de;
-
- while (!list_empty(&dbe->deferred)) {
- de = list_entry(dbe->deferred.next, struct deferred_export,
- node);
- list_del(&de->node);
- free(de);
- }
-}
-
-static int db_export__defer_comm(struct db_export *dbe, struct comm *comm)
-{
- struct deferred_export *de;
-
- de = zalloc(sizeof(struct deferred_export));
- if (!de)
- return -ENOMEM;
-
- de->comm = comm;
- list_add_tail(&de->node, &dbe->deferred);
-
- return 0;
-}
-
int db_export__init(struct db_export *dbe)
{
memset(dbe, 0, sizeof(struct db_export));
- INIT_LIST_HEAD(&dbe->deferred);
return 0;
}
-int db_export__flush(struct db_export *dbe)
-{
- return db_export__deferred(dbe);
-}
-
void db_export__exit(struct db_export *dbe)
{
- db_export__free_deferred(dbe);
call_return_processor__free(dbe->crp);
dbe->crp = NULL;
}
@@ -171,10 +115,7 @@ int db_export__comm(struct db_export *dbe, struct comm *comm,
comm->db_id = ++dbe->comm_last_db_id;
if (dbe->export_comm) {
- if (main_thread->comm_set)
- err = dbe->export_comm(dbe, comm);
- else
- err = db_export__defer_comm(dbe, comm);
+ err = dbe->export_comm(dbe, comm);
if (err)
return err;
}
diff --git a/tools/perf/util/db-export.h b/tools/perf/util/db-export.h
index e8a64028a386..261cfece8dee 100644
--- a/tools/perf/util/db-export.h
+++ b/tools/perf/util/db-export.h
@@ -68,11 +68,9 @@ struct db_export {
u64 sample_last_db_id;
u64 call_path_last_db_id;
u64 call_return_last_db_id;
- struct list_head deferred;
};
int db_export__init(struct db_export *dbe);
-int db_export__flush(struct db_export *dbe);
void db_export__exit(struct db_export *dbe);
int db_export__evsel(struct db_export *dbe, struct perf_evsel *evsel);
int db_export__machine(struct db_export *dbe, struct machine *machine);
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 112bed65232f..c9837f0f0fd6 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -1620,9 +1620,7 @@ static int python_start_script(const char *script, int argc, const char **argv)
static int python_flush_script(void)
{
- struct tables *tables = &tables_global;
-
- return db_export__flush(&tables->dbe);
+ return 0;
}
/*
--
2.17.1
Powered by blists - more mailing lists