Re: [PATCH] btrfs/012: check if ext4 is available

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> btrfs/012 is requiring ext4 support to test the conversion, but the test
> case is only checking if mkfs.ext4 is available, not if the filesystem
> driver is actually available on the test host.
> Check if the driver is available as well, before trying to run the test.
> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>
> ---
>  tests/btrfs/012 | 2 ++
>  1 file changed, 2 insertions(+)
> diff --git a/tests/btrfs/012 b/tests/btrfs/012
> index 60461a342545..86fbbb7ac189 100755
> --- a/tests/btrfs/012
> +++ b/tests/btrfs/012
> @@ -32,6 +32,8 @@ _require_command "$E2FSCK_PROG" e2fsck
>  _require_non_zoned_device "${SCRATCH_DEV}"
>  _require_loop
> +grep -q ext4 /proc/filesystems || _notrun "no ext4 support"

when ext4 is module, and is not used, 'ext4' will not be in /proc/filesystems.

so we need a right way to check ext4 support.

Best Regards
Wang Yugui (wangyugui@xxxxxxxxxxxx)

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