[PATCH v3 09/10] selftests/mm: Drop unnecessary sudo usage

[Brendan Jackman <jackmanb@google.com>]

This script must be run as root anyway (see all the writing to
privileged files in /proc etc).

Remove the unnecessary use of sudo to avoid breaking on single-user
systems that don't have sudo. This also avoids confusing readers.

Signed-off-by: Brendan Jackman <jackmanb@google.com>
---
 tools/testing/selftests/mm/run_vmtests.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh
index da7e266681031d2772fb0c4139648904a18e0bf9..0f9fe757c3320a6551e39b6d4552fd4874b0bf43 100755
--- a/tools/testing/selftests/mm/run_vmtests.sh
+++ b/tools/testing/selftests/mm/run_vmtests.sh
@@ -386,7 +386,7 @@ CATEGORY="madv_populate" run_test ./madv_populate
 
 if [ -x ./memfd_secret ]
 then
-(echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope 2>&1) | tap_prefix
+(echo 0 > /proc/sys/kernel/yama/ptrace_scope 2>&1) | tap_prefix
 CATEGORY="memfd_secret" run_test ./memfd_secret
 fi
 

-- 
2.48.1.711.g2feabab25a-goog