[LTP] [PATCH] cpuset_memory: Fix hugetlb mntpoint

[Martin Doucha]

The cpuset_memory test tries to mount hugetlb filesystem on a hardcoded
directory in the root filesystem. This doesn't work on distros with
read-only root. Change the mountpoint to the common temp directory
instead.

Signed-off-by: Martin Doucha <mdoucha@suse.cz>
---

Tested on SLE-Micro 6.

 .../cpuset/cpuset_memory_test/cpuset_memory_testset.sh   | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/testcases/kernel/controllers/cpuset/cpuset_memory_test/cpuset_memory_testset.sh b/testcases/kernel/controllers/cpuset/cpuset_memory_test/cpuset_memory_testset.sh
index d63950f8e..581df5c32 100755
--- a/testcases/kernel/controllers/cpuset/cpuset_memory_test/cpuset_memory_testset.sh
+++ b/testcases/kernel/controllers/cpuset/cpuset_memory_test/cpuset_memory_testset.sh
@@ -44,6 +44,7 @@ HUGEPAGESIZE=$(awk '/Hugepagesize/{ print $2 }' /proc/meminfo)
 HUGEPAGESIZE=$((${HUGEPAGESIZE:-0} * 1024))
 
 MEMORY_RESULT="$CPUSET_TMP/memory_result"
+HUGETLB_MNTPOINT="$CPUSET_TMP/hugetlb"
 
 # simple_getresult
 # $1 - cpuset_memory_test's pid
@@ -181,8 +182,8 @@ test6()
 		return 0
 	fi
 
-	mkdir /hugetlb
-	mount -t hugetlbfs none /hugetlb
+	mkdir "$HUGETLB_MNTPOINT"
+	mount -t hugetlbfs none "$HUGETLB_MNTPOINT"
 
 	save_nr_hugepages=$(cat /proc/sys/vm/nr_hugepages)
 	echo $((2*$nr_mems)) > /proc/sys/vm/nr_hugepages
@@ -190,8 +191,8 @@ test6()
 	cpuset_memory_test --shm --hugepage -s $HUGEPAGESIZE --key=7 >"$MEMORY_RESULT" &
 	simple_getresult $! "$CPUSET/0"
 
-	umount /hugetlb
-	rmdir /hugetlb
+	umount "$HUGETLB_MNTPOINT"
+	rmdir "$HUGETLB_MNTPOINT"
 
 	echo $save_nr_hugepages > /proc/sys/vm/nr_hugepages
 	if [ $(cat /proc/sys/vm/nr_hugepages) -ne $save_nr_hugepages ]; then
-- 
2.52.0