From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx>
The tracefs_cpu_open_mapped() will mmap the ring buffer if it is supported,
but it does not unmap it when it is closed.
Fixes: 2ed14b59 ("libtracefs: Add ring buffer memory mapping APIs")
Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
---
src/tracefs-record.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/tracefs-record.c b/src/tracefs-record.c
index f51e18420bc7..4a59c61c195f 100644
--- a/src/tracefs-record.c
+++ b/src/tracefs-record.c
@@ -276,6 +276,7 @@ void tracefs_cpu_free_fd(struct tracefs_cpu *tcpu)
close_fd(tcpu->splice_pipe[0]);
close_fd(tcpu->splice_pipe[1]);
+ trace_unmap(tcpu->mapping);
kbuffer_free(tcpu->kbuf);
free(tcpu);
}
--
2.43.0
|