On Mon, 28 Oct 2024 10:07:48 +0100, Christoph Hellwig wrote:
> blk_rq_map_user_bvec currently only has ad-hoc checks for queue limits,
> and the last fix to it enabled valid NVMe I/O to pass, but also allowed
> invalid one for drivers that set a max_segment_size or seg_boundary
> limit.
>
> Fix it once for all by using the bio_split_rw_at helper from the I/O
> path that indicates if and where a bio would be have to be split to
> adhere to the queue limits, and it it returns a positive value, turn
> that into -EREMOTEIO to retry using the copy path.
>
> [...]
Applied, thanks!
[1/1] block: fix queue limits checks in blk_rq_map_user_bvec for real
commit: be0e822bb3f5259c7f9424ba97e8175211288813
Best regards,
--
Jens Axboe
