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kselftests/damon: add support for cases where debugfs cannot be read

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The kernel is in lockdown mode when secureboot is enabled and hence
debugfs cannot be used. Add support for this and other general cases
where debugfs cannot be read and communicate the same to the user before
running tests.

Signed-off-by: Gautam <gautammenghani201@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Gautam 2022-06-26 01:22:45 +05:30 committed by Shuah Khan
parent 18afe1bf05
commit 43fe0cc46b
1 changed files with 10 additions and 0 deletions
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10
tools/testing/selftests/damon/_chk_dependency.sh
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@ -26,3 +26,13 @@ do
exit 1
fi
done
permission_error="Operation not permitted"
for f in attrs target_ids monitor_on
do
status=$( cat "$DBGFS/$f" 2>&1 )
if [ "${status#*$permission_error}" != "$status" ]; then
echo "Permission for reading $DBGFS/$f denied; maybe secureboot enabled?"
exit $ksft_skip
fi
done