[PATCH] generic/108: use sysfs values for logical,physical block size in scsi_debug

[Nitesh Shetty <nj.shetty@samsung.com>]

scsi_debug device used for test, is created with assumption of 512 bytes
logical and physical block size.
This causes error in lvcreate step, when SCRATCH_DEV device lba is not
512 bytes. This can be solved by reading block size from sysfs of device.
If sysfs is missing fallback to 512 bytes as default.

Signed-off-by: Nitesh Shetty <nj.shetty@samsung.com>
---
 tests/generic/108 | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tests/generic/108 b/tests/generic/108
index ad43269f..db0e9bd0 100755
--- a/tests/generic/108
+++ b/tests/generic/108
@@ -42,8 +42,11 @@ _require_non_zoned_device $SCRATCH_DEV
 lvname=lv_$seq
 vgname=vg_$seq
 
+physical=$(cat /sys/block/$(_short_dev $SCRATCH_DEV)/queue/physical_block_size)
+logical=$(cat /sys/block/$(_short_dev $SCRATCH_DEV)/queue/logical_block_size)
+
 # _get_scsi_debug_dev returns a scsi debug device with 128M in size by default
-SCSI_DEBUG_DEV=`_get_scsi_debug_dev 512 512 0 300`
+SCSI_DEBUG_DEV=`_get_scsi_debug_dev ${physical:-512} ${logical:-512} 0 300`
 test -b "$SCSI_DEBUG_DEV" || _notrun "Failed to initialize scsi debug device"
 echo "SCSI debug device $SCSI_DEBUG_DEV" >>$seqres.full
 

base-commit: 2ea74ba4e70b546279896e2a733c8c7f4b206193
-- 
2.25.1