Re: [PATCH] fstests: btrfs/131: remove deprecated v1 space cache tests

[Anand Jain <anajain.sg@gmail.com>]

On 23/12/25 15:39, Qu Wenruo wrote:
> Since upstream kernel commit 1e7bec1f7d65 ("btrfs: emit a warning about
> space cache v1 being deprecated"), v1 space cache is deprecated and
> we're considering to remove the support soon.
> 
> This means soon v1 space cache mount option will no longer be accepted,
> and the test case will fail due to such change.
> 
> Update the test case to remove all v1 cache usage, so we only support
> two cache modes, either nospace_cache or space_cache=v2.
> 
> This also allows bs < ps btrfs to be tested for this test case which has
> no v1 space cache from day 1.

We need testing space_cache=v1 for LTS kernels for its maintenance.

So why not duplicate this test case: one for kernels that support
both space_cache=v1 and FST, and another for kernels with FST
support only? Kernels would then either run or _notrun each test
case accordingly.

> -mkfs_v1
> -echo "Disabling free space cache and enabling free space tree"
> +mkfs_nocache

> +echo "Clearing free space cache and enabling free space tree"

The message should be “Clearing no space cache..”. ?

-Anand