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selftests/damon/debugfs_duplicate_context_creation: hide errors from expected file write failures

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debugfs_duplicate_context_creation.sh does an invalid file write to ensure
it fails.  Check of the failure is sufficient, so the error message from
the failure only makes the output unnecessarily noisy.  Hide it.

Link: https://lkml.kernel.org/r/20241028233058.283381-5-sj@kernel.org
Fixes: ade38b8ca5 ("selftest/damon: add a test for duplicate context dirs creation")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Andrew Paniakin <apanyaki@amazon.com>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2024-10-28 16:30:56 -07:00 committed by Andrew Morton
parent 82475d111d
commit 9b1266ee08
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/damon/debugfs_duplicate_context_creation.sh
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@ -12,7 +12,7 @@ then
exit 1
fi
if echo foo > "$DBGFS/mk_contexts"
if echo foo > "$DBGFS/mk_contexts" 2> /dev/null
then
echo "duplicate context creation success"
exit 1