Re: [PATCH v2 1/7] blk-mq-dma: restore BLK_STS_TARGET for unsupported P2P transfers

[Christoph Hellwig]

On Sun, Jul 19, 2026 at 10:53:21AM +0000, Mykola Marzhan wrote:
> matching dma_map_sgtable()'s -EREMOTEIO: "When this happens, return
> BLK_STS_TARGET so the request isn't retried." The conversion to
> blk_rq_dma_map silently changed the status to BLK_STS_INVAL, which
> regresses two consumers:

This is a really weird writing style, and suggested to me you neither
understand the code nor the problem.  Please actually think yourself,
write the patches and commit logs yourself instdad of this garbage.

And please also explain how you even generate the I/O that fails this
way.