The patch titled
Subject: selftests/damon/_debugfs_common: hide expected error message from test_write_result()
has been added to the -mm mm-unstable branch. Its filename is
selftests-damon-_debugfs_common-hide-expected-error-message-from-test_write_result.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-damon-_debugfs_common-hide-expected-error-message-from-test_write_result.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: selftests/damon/_debugfs_common: hide expected error message from test_write_result()
Date: Mon, 28 Oct 2024 16:30:55 -0700
DAMON debugfs interface selftests use test_write_result() to check if
valid or invalid writes to files of the interface success or fail as
expected. File write error messages from expected failures are only
making the output noisy. Hide such expected error messages.
Link: https://lkml.kernel.org/r/20241028233058.283381-4-sj@xxxxxxxxxx
Fixes: b348eb7abd09 ("mm/damon: add user space selftests")
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Cc: Andrew Paniakin <apanyaki@xxxxxxxxxx>
Cc: Brendan Higgins <brendan.higgins@xxxxxxxxx>
Cc: David Gow <davidgow@xxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/damon/_debugfs_common.sh | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- a/tools/testing/selftests/damon/_debugfs_common.sh~selftests-damon-_debugfs_common-hide-expected-error-message-from-test_write_result
+++ a/tools/testing/selftests/damon/_debugfs_common.sh
@@ -8,7 +8,12 @@ test_write_result() {
expect_reason=$4
expected=$5
- echo "$content" > "$file"
+ if [ "$expected" = "0" ]
+ then
+ echo "$content" > "$file"
+ else
+ echo "$content" > "$file" 2> /dev/null
+ fi
if [ $? -ne "$expected" ]
then
echo "writing $content to $file doesn't return $expected"
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
selftests-damon-huge_count_read_write-remove-unnecessary-debugging-message.patch
selftests-damon-_debugfs_common-hide-expected-error-message-from-test_write_result.patch
selftests-damon-debugfs_duplicate_context_creation-hide-errors-from-expected-file-write-failures.patch
mm-damon-kconfig-update-dbgfs_kunit-prompt-copy-for-sysfs_kunit.patch
mm-damon-tests-dbgfs-kunit-fix-the-header-double-inclusion-guarding-ifdef-comment.patch
