[4/5] common: add zoned block device checks

Commit Message

Naohiro Aota May 21, 2021, 4:58 a.m. UTC

dm-error and dm-snapshot does not have DM_TARGET_ZONED_HM nor
DM_TARGET_MIXED_ZONED_MODEL feature and does not implement
.report_zones(). So, it cannot pass the zone information from the down
layer (zoned device) to the upper layer.

Loop device also cannot pass the zone information.

This patch requires non-zoned block device for the tests using these
ones.

Signed-off-by: Naohiro Aota <[e-mail]>
---
 common/dmerror    | 3 +++
 common/dmhugedisk | 3 +++
 common/rc         | 3 +++
 3 files changed, 9 insertions(+)

Patch

diff --git a/common/dmerror b/common/dmerror
index 7d12e0a1843c..84d2c338df11 100644
--- a/common/dmerror
+++ b/common/dmerror
@@ -15,6 +15,9 @@  _dmerror_setup()
 	DMLINEAR_TABLE="0 $blk_dev_size linear $dm_backing_dev 0"
 
 	DMERROR_TABLE="0 $blk_dev_size error $dm_backing_dev 0"
+
+	# dm-error cannot handle zone information
+	_require_non_zoned_device "${dm_backing_dev}"
 }
 
 _dmerror_init()
diff --git a/common/dmhugedisk b/common/dmhugedisk
index 502f0243772d..715f95efde29 100644
--- a/common/dmhugedisk
+++ b/common/dmhugedisk
@@ -16,6 +16,9 @@  _dmhugedisk_init()
 	local dm_backing_dev=$SCRATCH_DEV
 	local chunk_size="$2"
 
+	# We cannot ensure sequential writes on the backing device
+	_require_non_zoned_device $dm_backing_dev
+
 	if [ -z "$chunk_size" ]; then
 		chunk_size=512
 	fi
diff --git a/common/rc b/common/rc
index 9a8458d4a3b6..55cd8e8df8f6 100644
--- a/common/rc
+++ b/common/rc
@@ -1812,6 +1812,9 @@  _require_loop()
     else
 	_notrun "This test requires loopback device support"
     fi
+
+    # loop device does not handle zone information
+    _require_non_zoned_device ${TEST_DEV}
 }
 
 # this test requires kernel support for a secondary filesystem