Re: [PATCH -next v4 2/3] selftests/memory-hotplug: Restore memory before exit

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On 27.09.22 05:28, Zhao Gongyi wrote:
Some momory will be left in offline state when calling
offline_memory_expect_fail() failed. Restore it before exit.

Signed-off-by: Zhao Gongyi <zhaogongyi@xxxxxxxxxx>
---
  .../memory-hotplug/mem-on-off-test.sh         | 21 ++++++++++++++-----
  1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
index 1d87611a7d52..91a7457616bb 100755
--- a/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
+++ b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
@@ -134,6 +134,16 @@ offline_memory_expect_fail()
  	return 0
  }

+online_all_offline_memory()
+{
+	for memory in `hotpluggable_offline_memory`; do
+		if ! online_memory_expect_success $memory; then
+			echo "$FUNCNAME $memory: unexpected fail" >&2
+			retval=1
+		fi
+	done
+}
+
  error=-12
  priority=0
  # Run with default of ratio=2 for Kselftest run
@@ -275,11 +285,7 @@ done
  # Online all hot-pluggable memory
  #
  echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_ONLINE/error
-for memory in `hotpluggable_offline_memory`; do
-	if ! online_memory_expect_success $memory; then
-		retval=1
-	fi
-done
+online_all_offline_memory

  #
  # Test memory hot-remove error handling (online => offline)
@@ -296,4 +302,9 @@ done
  echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error
  /sbin/modprobe -q -r memory-notifier-error-inject

+#
+# Restore memory before exit
+#
+online_all_offline_memory
+
  exit $retval
--

Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>

--
Thanks,

David / dhildenb





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