Re: [PATCH v4 3/7] md/raid10: consistently fail atomic writes that require splitting

[John Garry]

On 10/07/2026 11:15, Abd-Alrhman Masalkhi wrote:
> RAID10 currently handles one badblock path explicitly by failing atomic
> writes with EIO. However, another badblock path can also reduce the
> writable range and force the bio through bio_submit_split_bioset(),

What is this other badblock path which you are referring to?

> which implicitly completes the bio with EINVAL.
>
> Fix this by handling atomic writes in the common split check. If RAID10
> determines that an atomic write would require splitting, complete the
> bio with EIO.
>
> Fixes: a1d9b4fd42d9 ("md/raid10: Atomic write support")
> Signed-off-by: Abd-Alrhman Masalkhi<abd.masalkhi@xxxxxxxxx>
> ---