perf thread: Add accessor functions for thread

Using accessors will make it easier to add reference count checking in
later patches.

Committer notes:

thread->nsinfo wasn't wrapped as it is used together with
nsinfo__zput(), where does a trick to set the field with a refcount
being dropped to NULL, and that doesn't work well with using
thread__nsinfo(thread), that loses the &thread->nsinfo pointer.

When refcount checking is added to 'struct thread', later in this
series, nsinfo__zput(RC_CHK_ACCESS(thread)->nsinfo) will be used to
check the thread pointer.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Brian Robbins <brianrob@linux.microsoft.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Dmitrii Dolgov <9erthalion6@gmail.com>
Cc: Fangrui Song <maskray@google.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ivan Babrou <ivan@cloudflare.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: K Prateek Nayak <kprateek.nayak@amd.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Steinar H. Gunderson <sesse@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Wenyu Liu <liuwenyu7@huawei.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Ye Xingchen <ye.xingchen@zte.com.cn>
Cc: Yuan Can <yuancan@huawei.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230608232823.4027869-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 8 insertions, 8 deletions

diff --git a/tools/perf/util/db-export.c b/tools/perf/util/db-export.c
index 84c970c11794..751fd53bfd93 100644
--- a/tools/perf/util/db-export.c
+++ b/tools/perf/util/db-export.c
@@ -64,13 +64,13 @@ int db_export__thread(struct db_export *dbe, struct thread *thread,
 {
 	u64 main_thread_db_id = 0;
 
-	if (thread->db_id)
+	if (thread__db_id(thread))
 		return 0;
 
-	thread->db_id = ++dbe->thread_last_db_id;
+	thread__set_db_id(thread, ++dbe->thread_last_db_id);
 
 	if (main_thread)
-		main_thread_db_id = main_thread->db_id;
+		main_thread_db_id = thread__db_id(main_thread);
 
 	if (dbe->export_thread)
 		return dbe->export_thread(dbe, thread, main_thread_db_id,
@@ -251,7 +251,7 @@ static struct call_path *call_path_from_sample(struct db_export *dbe,
 		 */
 		al.sym = node->ms.sym;
 		al.map = node->ms.map;
-		al.maps = thread->maps;
+		al.maps = thread__maps(thread);
 		al.addr = node->ip;
 
 		if (al.map && !al.sym)
@@ -321,7 +321,7 @@ static int db_export__threads(struct db_export *dbe, struct thread *thread,
 		 * For a non-main thread, db_export__comm_thread() must be
 		 * called only if thread has not previously been exported.
 		 */
-		bool export_comm_thread = comm && !thread->db_id;
+		bool export_comm_thread = comm && !thread__db_id(thread);
 
 		err = db_export__thread(dbe, thread, machine, main_thread);
 		if (err)
@@ -529,16 +529,16 @@ static int db_export__pid_tid(struct db_export *dbe, struct machine *machine,
 	struct thread *main_thread;
 	int err = 0;
 
-	if (!thread || !thread->comm_set)
+	if (!thread || !thread__comm_set(thread))
 		goto out_put;
 
-	*is_idle = !thread->pid_ && !thread->tid;
+	*is_idle = !thread__pid(thread) && !thread__tid(thread);
 
 	main_thread = thread__main_thread(machine, thread);
 
 	err = db_export__threads(dbe, thread, main_thread, machine, comm_ptr);
 
-	*db_id = thread->db_id;
+	*db_id = thread__db_id(thread);
 
 	thread__put(main_thread);
 out_put: