[GIT PULL] kselftest fixes update for Linux 6.18-rc6

[Shuah Khan <skhan@linuxfoundation.org>]

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Hi Linus,

Please pull this kselftest fixes update for Linux 6.18-rc6

Fixes event-filter-function.tc tracing test failure caused when a first
run to sample events triggers kmem_cache_free which interferes with the
rest of the test. Fix this calling sample_events twice to eliminate the
kmem_cache_free related noise from the sampling.

diff is attached.

thanks,
-- Shuah

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The following changes since commit 920aa3a7705a061cb3004572d8b7932b54463dbf:

   selftests: cachestat: Fix warning on declaration under label (2025-10-22 09:23:18 -0600)

are available in the Git repository at:

   git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux_kselftest-fixes-6.18-rc6

for you to fetch changes up to dd4adb986a86727ed8f56c48b6d0695f1e211e65:

   selftests/tracing: Run sample events to clear page cache events (2025-11-10 18:00:07 -0700)

----------------------------------------------------------------
linux_kselftest-fixes-6.18-rc6

Fixes event-filter-function.tc tracing test failure caused when a first
run to sample events triggers kmem_cache_free which interferes with the
rest of the test. Fix this calling sample_events twice to eliminate the
kmem_cache_free related noise from the sampling.

----------------------------------------------------------------
Steven Rostedt (1):
       selftests/tracing: Run sample events to clear page cache events

  tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc | 4 ++++
  1 file changed, 4 insertions(+)
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diff --git a/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
index c62165fabd0c..cfa16aa1f39a 100644
--- a/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
+++ b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
@@ -20,6 +20,10 @@ sample_events() {
 echo 0 > tracing_on
 echo 0 > events/enable
 
+# Clear functions caused by page cache; run sample_events twice
+sample_events
+sample_events
+
 echo "Get the most frequently calling function"
 echo > trace
 sample_events