Use newer mkfs.btrfs option to generate two cloned devices, used in test cases. Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx> Reviewed-by: Filipe Manana <fdmanana@xxxxxxxx> --- common/btrfs | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/common/btrfs b/common/btrfs index fe6fc2196e68..7141a0bb7b78 100644 --- a/common/btrfs +++ b/common/btrfs @@ -843,3 +843,26 @@ check_fsid() echo -e -n "Tempfsid status:\t" cat /sys/fs/btrfs/$tempfsid/temp_fsid } + +mkfs_clone() +{ + local fsid + local uuid + local dev1=$1 + local dev2=$2 + + _require_btrfs_command inspect-internal dump-super + _require_btrfs_mkfs_uuid_option + + [[ -z $dev1 || -z $dev2 ]] && \ + _fail "mkfs_clone requires two devices as arguments" + + _mkfs_dev -fq $dev1 + + fsid=$($BTRFS_UTIL_PROG inspect-internal dump-super $dev1 | \ + grep -E ^fsid | $AWK_PROG '{print $2}') + uuid=$($BTRFS_UTIL_PROG inspect-internal dump-super $dev1 | \ + grep -E ^dev_item.uuid | $AWK_PROG '{print $2}') + + _mkfs_dev -fq --uuid $fsid --device-uuid $uuid $dev2 +} -- 2.39.3