Re: [PATCH] overlay/080: cycle base fs in prepare_midlayer to exercise lazy verity load

[Zorro Lang <zlang@kernel.org>]

On Fri, May 08, 2026 at 04:07:39PM -0400, Colin Walters wrote:
> This reproduces the regression reported at:
> https://github.com/bootc-dev/bootc/issues/2174
> 
> Assisted-by: OpenCode (Claude Sonnet 4.6)
> Signed-off-by: Colin Walters <walters@verbum.org>
> ---
>  tests/overlay/080 | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/tests/overlay/080 b/tests/overlay/080
> index ce5c2375..ede04dab 100755
> --- a/tests/overlay/080
> +++ b/tests/overlay/080
> @@ -21,6 +21,8 @@ _require_scratch_nocheck
>  _require_scratch_overlay_features redirect_dir metacopy
>  _require_scratch_overlay_lowerdata_layers
>  _require_scratch_overlay_verity
> +_fixed_by_kernel_commit 0c8c88b8eb82a2a41bec5f17c076d6312dc40316 \
                           ^^^^^^^^
A short id is enough, e.g. 0c8c88b8eb82 :)

> +    "ovl: fix verity lazy-load guard broken by fsverity_active() semantic change"
>  
>  # remove all files from previous tests
>  _scratch_mkfs
> @@ -222,6 +224,11 @@ prepare_midlayer()
>         echo -n "changed" > $lowerdir/$subdir$wrongverityname
>         _fsv_enable $lowerdir/$subdir$wrongverityname
>         echo "$lowerdata4" > $lowerdir/$subdir$missingverityname
> +
> +       # Cycle the base fs to evict cached inodes, so the overlay mount
> +       # that follows exercises the lazy verity load path from disk.
> +       _overlay_base_unmount "$OVL_BASE_SCRATCH_DEV" "$OVL_BASE_SCRATCH_MNT"
> +       _overlay_base_scratch_mount
>  }
>  
>  test_common()
> -- 
> 2.52.0
> 
>