For kernels that have removed the section-aligned namespace constraint
validate that multiple namespaces can be created / deleted that collide
within a given section.
While this test acts on the ACPI.NFIT bus it is not marked "destructive"
because it only operates in available capacity and marks each namespace
created with a unique volume name ("subsection-test").
Signed-off-by: Dan Williams <[email protected]>
---
test/Makefile.am | 1 +
test/sub-section.sh | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 79 insertions(+)
create mode 100755 test/sub-section.sh
diff --git a/test/Makefile.am b/test/Makefile.am
index 2a1e03d26f6c..decc8377258a 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -45,6 +45,7 @@ if ENABLE_DESTRUCTIVE
TESTS +=\
blk-ns \
pmem-ns \
+ sub-section.sh \
dax-dev \
dax.sh \
device-dax \
diff --git a/test/sub-section.sh b/test/sub-section.sh
new file mode 100755
index 000000000000..c624fbdb2ce0
--- /dev/null
+++ b/test/sub-section.sh
@@ -0,0 +1,78 @@
+#!/bin/bash -x
+
+# SPDX-License-Identifier: GPL-2.0
+# Copyright(c) 2015-2019 Intel Corporation. All rights reserved.
+
+set -e
+
+SKIP=77
+FAIL=1
+SUCCESS=0
+
+. ./common
+
+check_min_kver "5.3" || do_skip "may lack align sub-section hotplug support"
+
+MNT=test_dax_mnt
+mkdir -p $MNT
+
+TEST_SIZE=$((16<<20))
+MIN_AVAIL=$((TEST_SIZE*4))
+MAX_NS=10
+NAME="subsection-test"
+
+ndctl list -N | jq -r ".[] | select(.name==\"subsection-test\") | .dev"
+
+rc=$FAIL
+cleanup() {
+ if [ $rc -ne $SUCCESS ]; then
+ echo "test/sub-section.sh: failed at line $1"
+ fi
+ if mountpoint -q $MNT; then
+ umount $MNT
+ fi
+ rmdir $MNT
+ # opportunistic cleanup, not fatal if these fail
+ namespaces=$($NDCTL list -N | jq -r ".[] | select(.name==\"$NAME\") |
.dev")
+ for i in $namespaces
+ do
+ if ! $NDCTL destroy-namespace -f $i; then
+ echo "test/sub-section.sh: cleanup() failed to destroy
$i"
+ fi
+ done
+ exit $rc
+}
+
+trap 'err $LINENO cleanup' ERR
+
+json=$($NDCTL list -R -b ACPI.NFIT)
+region=$(echo $json | jq -r "[.[] | select(.available_size >=
$MIN_AVAIL)][0].dev")
+avail=$(echo $json | jq -r "[.[] | select(.available_size >=
$MIN_AVAIL)][0].available_size")
+if [ -z $region ]; then
+ exit $SKIP
+fi
+
+iter=$((avail/TEST_SIZE))
+if [ $iter -gt $MAX_NS ]; then
+ iter=$MAX_NS;
+fi
+
+for i in $(seq 1 $iter)
+do
+ json=$($NDCTL create-namespace -s $TEST_SIZE --no-autorecover -r
$region -n "$NAME")
+ dev=$(echo $json | jq -r ".blockdev")
+ mkfs.ext4 -b 4096 /dev/$dev
+ mount -o dax /dev/$dev $MNT
+ umount $MNT
+done
+
+namespaces=$($NDCTL list -N | jq -r ".[] | select(.name==\"$NAME\") | .dev")
+for i in $namespaces
+do
+ $NDCTL disable-namespace $i
+ $NDCTL enable-namespace $i
+ $NDCTL destroy-namespace $i -f
+done
+
+rc=$SUCCESS
+cleanup $LINENO
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