Re: [PATCH v2] btrfs: simplify async csum synchronization

[David Sterba]

On Thu, Nov 13, 2025 at 11:17:30AM +0100, Daniel Vacek wrote:
> We don't need the redundant completion csum_done which marks the
> csum work has been executed. We can simply flush_work() instead.
> 
> This way we can slim down the btrfs_bio structure by 32 bytes matching
> it's size to what it used to be before introducing the async csums.
> Hence not making any change with respect to the structure size.
> ---
> This is a simple fixup for "btrfs: introduce btrfs_bio::async_csum" in
> for-next and can be squashed into it.
> 
> v2: metadata is not checksummed here so use the endio_workers workqueue
>     unconditionally. Thanks to Qu Wenruo.

This looks quite useful regarding the size reduction of btrfs_bio,
please fold it to the patch. Thanks.