Some btrfs test cases use btrfs module-reload to unregister devices
in the btrfs kernel. The problem with the module-reload approach is,
if test system contains btrfs as rootfs, then you can't run these
test cases.
Patches [1] introduced btrfs forget feature which can unregister
devices without the module-reload approach.
[1]
btrfs-progs: device scan: add new option to forget one or all scanned devices
btrfs: introduce new ioctl to unregister a btrfs device
And this patch makes relevant changes in the fstests to use this new
feature, when available.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Anand Jain
cbae878f41