The function create_cloned_devices() takes two devices, creates
a filesystem using mkfs, and clones the content from one device
to another using device dump.
Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
---
common/btrfs | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/common/btrfs b/common/btrfs
index 5cba9b16b4de..61d5812d49d9 100644
--- a/common/btrfs
+++ b/common/btrfs
@@ -826,3 +826,25 @@ check_fsid()
echo -e -n "Tempfsid status:\t"
cat /sys/fs/btrfs/$tempfsid/temp_fsid
}
+
+create_cloned_devices()
+{
+ local dev1=$1
+ local dev2=$2
+
+ [[ -z $dev1 || -z $dev2 ]] && \
+ _fail "BUGGY code, create_cloned_devices needs arg1 arg3"
+
+ echo -n Creating cloned device...
+ _mkfs_dev -fq -b $((1024 * 1024 * 300)) $dev1
+
+ _mount $dev1 $SCRATCH_MNT
+
+ $XFS_IO_PROG -fc 'pwrite -S 0x61 0 9000' $SCRATCH_MNT/foo | \
+ _filter_xfs_io
+ umount $SCRATCH_MNT
+ # device dump of $dev1 to $dev2
+ dd if=$dev1 of=$dev2 bs=300M count=1 conv=fsync status=none || \
+ _fail "dd failed: $?"
+ echo done
+}
--
2.39.3
