[PATCH v3 27/50] perf thread: Add missing RC_CHK_ACCESS

From: Ian Rogers
Date: Tue Oct 24 2023 - 18:26:21 EST


Comparing pointers without RC_CHK_ACCESS means the indirect object
will be compared rather than the underlying maps when REFCNT_CHECKING
is enabled. Fix by adding missing RC_CHK_ACCESS.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
tools/perf/util/thread.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index fe5e6991ae4b..eae3041408a7 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -385,7 +385,7 @@ static int thread__clone_maps(struct thread *thread, struct thread *parent, bool
if (thread__pid(thread) == thread__pid(parent))
return thread__prepare_access(thread);

- if (thread__maps(thread) == thread__maps(parent)) {
+ if (RC_CHK_ACCESS(thread__maps(thread)) == RC_CHK_ACCESS(thread__maps(parent))) {
pr_debug("broken map groups on thread %d/%d parent %d/%d\n",
thread__pid(thread), thread__tid(thread),
thread__pid(parent), thread__tid(parent));
--
2.42.0.758.gaed0368e0e-goog