#!/bin/ksh

NO_LOOP_BREAK=true

function loop
{
    while $NO_LOOP_BREAK; do cp /testpool/file /testpool/clone; done
}

zpool destroy -f testpool

zpool create -o feature@block_cloning=enabled testpool /dev/da*p2

echo "Creating file"

dd if=/dev/urandom of=/testpool/file bs=1M count=4000
zpool sync testpool

echo "Copying entire file with FICLONE"

cp /testpool/file /testpool/clone
zpool sync testpool

echo "looping a clone"
loop &

dd if=/dev/urandom of=/testpool/clone bs=1M count=4000
dd if=/dev/urandom of=/testpool/clone bs=1M count=4000

NO_LOOP_BREAK=false

echo "done"

zpool sync testpool