[PATCH] libtracefs utest: Update kprobe test to use filename_mkdirat

Steven Rostedt <[email protected]> Fri, 29 May 2026 15:30:23 -0400
Newsgroups org.kernel.vger.linux-trace-devel
Message-ID <20260529153023.440b966c@fedora>
From: Steven Rostedt <[email protected]>

The function do_mkdirat was renamed to filename_mkdirat. Ideally, this would
check if the filename_mkdirat exists and if not, fallback to do_mkdirat. But
that would just add complexity to a test that should be called on the most
recent kernels anyway. If it does become an issue, we can add the
complexity and make it more robust.

Perhaps a check should be done to make sure each function exists before
testing it.

Signed-off-by: Steven Rostedt <[email protected]>
---
 utest/tracefs-utest.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/utest/tracefs-utest.c b/utest/tracefs-utest.c
index e3ff215..05cbc95 100644
--- a/utest/tracefs-utest.c
+++ b/utest/tracefs-utest.c
@@ -2289,7 +2289,7 @@ static bool check_probes(struct probe_test *probes, int count,
 static void test_kprobes_instance(struct tracefs_instance *instance)
 {
 	struct probe_test ktests[] = {
-		{ TRACEFS_DYNEVENT_KPROBE, "p", NULL, "mkdir", "do_mkdirat", "path=+u0($arg2):ustring" },
+		{ TRACEFS_DYNEVENT_KPROBE, "p", NULL, "mkdir", "filename_mkdirat", "path=+u0($arg2):ustring" },
 		{ TRACEFS_DYNEVENT_KPROBE, "p", NULL, "close", "close_fd", NULL },
 		{ TRACEFS_DYNEVENT_KPROBE, "p", "ptest", "open2", "do_sys_openat2",
 				  "file=+u0($arg2):ustring flags=+0($arg3):x64" },
@@ -2634,7 +2634,7 @@ static void test_multi_probes_instance(struct tracefs_instance *instance)
 					   "file=+0($filename):ustring" },
 		{ TRACEFS_DYNEVENT_EPROBE, "e", "etest", "sopen_out", "syscalls.sys_exit_openat",
 					   "res=$ret:u64" },
-		{ TRACEFS_DYNEVENT_KPROBE, "p", NULL, "mkdir", "do_mkdirat", "path=+u0($arg2):ustring" },
+		{ TRACEFS_DYNEVENT_KPROBE, "p", NULL, "mkdir", "filename_mkdirat", "path=+u0($arg2):ustring" },
 		{ TRACEFS_DYNEVENT_KPROBE, "p", NULL, "close", "close_fd", NULL },
 		{ TRACEFS_DYNEVENT_KPROBE, "p", "ptest", "open2", "do_sys_openat2",
 				  "file=+u0($arg2):ustring flags=+0($arg3):x64" },
-- 
2.51.0