[LTP] [Automated-testing] [PATCH 2/6] API: tst_device: Track minimal size per filesystem

Cyril Hrubis chrubis@suse.cz
Mon Aug 29 14:24:36 CEST 2022

> > I do not think that we should harcode this here. I would be for a more
> > dynamic approach, i.e. add a function into the tst_supported_fs_types.c
> > that loops over supported filesystems and chooses max over the minimal
> > values for all supported filesystems. That way if we run on embedded
> > targets the device size will be 16MB as long as btrfs-progs is not
> > installed. Also that way we can easily define minimal size for xfs 300MB
> > and things will work for embedded as long as xfs-progs are not
> > installed.
> Correct. So the value for .all_filesystems should be maximum of supported
> filesystems. The only think I don't like about it that it takes some time to
> check everything (mkfs.* available ... etc), but we can't avoid it.
> Is it worth to cache this value (make it static in the function) so that it's not
> searched more than once?

Actually all we would need is a flag that would just return the pointer
to the fs_types array from the tst_get_supported_fs_types() on second
and subsequent calls.

Cyril Hrubis

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