On 30/04/2021 12:05, Filipe Manana wrote:
> On Thu, Apr 29, 2021 at 1:40 PM Johannes Thumshirn
> <johannes.thumshirn@xxxxxxx> wrote:
>>
>> Add a test for commit 18bb8bbf13c1 ("btrfs: zoned: automatically reclaim
>> zones").
>>
>> This test creates a two file on a newly created FS in a way that when we
>> delete the first one, an auto reclaim process will be triggered by the FS.
>>
>> After the reclaim process, it verifies that the data was moved to another
>> zone and old zone was successfully reset.
>>
>> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>
>
> Looks good, however I don't have an environment for testing zoned
> mode, so this is just really eyeballing.
This maybe is something I should document for the rest of us.
In essence it's:
create_zoned_null_blk()
{
dev="/sys/kernel/config/nullb/$1"
mkdir "$dev" || _fatal "cannot create nullb0 device"
size=12800 # MB
echo 2 > "$dev"/submit_queues
echo "${size}" > "${dev}"/size
echo 1 > "${dev}"/zoned
echo 4 > "${dev}"/zone_nr_conv
echo 1 > "${dev}"/memory_backed
echo 1 > "$dev"/power
}
for d in nullb0 nullb1; do
create_zoned_null_blk $d
done
for creating two zoned null_blk devices with 4 conventional zones and
256MB zone size.
> Thanks.
>
> Reviewed-by: Filipe Manana <fdmanana@xxxxxxxx>
Thanks
