On Mon, Oct 30, 2023 at 2:15 PM Anand Jain <anand.jain@xxxxxxxxxx> wrote:
>
> With this helper, btrfs test cases can now check if a particular feature
> is implemented in the kernel.
>
> Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
> ---
> common/btrfs | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/common/btrfs b/common/btrfs
> index c3bffd2ae3f7..fbc26181f7bc 100644
> --- a/common/btrfs
> +++ b/common/btrfs
> @@ -753,3 +753,15 @@ _require_scratch_enable_simple_quota()
> _notrun "simple quotas not available"
> _scratch_unmount
> }
> +
> +_has_btrfs_sysfs_feature_attr()
> +{
> + local feature_attr=$1
> +
> + [ -z $feature_attr ] && \
> + _fail "Missing feature name argument for _has_btrfs_sysfs_attr"
> +
> + modprobe btrfs &> /dev/null
> +
> + test -e /sys/fs/btrfs/features/$feature_attr
> +}
We already have _require_btrfs_fs_feature() to do exactly this.
Tried it in patch 5/6 and it works perfectly...
Thanks.
> --
> 2.39.3
>
