linux-kernel - [PATCHv2 2/5] selftests: check hot-pluggagble memory for memory-hotplug test

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Message-Id: <1498544235-14252-3-git-send-email-po-hsu.lin@canonical.com>
Date:   Tue, 27 Jun 2017 14:17:12 +0800
From:   Po-Hsu Lin <po-hsu.lin@...onical.com>
To:     shuah@...nel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCHv2 2/5] selftests: check hot-pluggagble memory for memory-hotplug test

Check for hot-pluggable memory availability in prerequisite() of the
memory-hotplug test.

Signed-off-by: Po-Hsu Lin <po-hsu.lin@...onical.com>
---
 .../selftests/memory-hotplug/mem-on-off-test.sh    |    5 +++++
 1 file changed, 5 insertions(+)

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 a8d8587..993ff2b 100755
--- a/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
+++ b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
@@ -22,6 +22,11 @@ prerequisite()
 		echo $msg memory hotplug is not supported >&2
 		exit 0
 	fi
+
+	if ! grep -q 1 $SYSFS/devices/system/memory/memory*/removable; then
+		echo $msg no hot-pluggable memory >&2
+		exit 0
+	fi
 }
 
 #
-- 
1.7.9.5