On 10/8/26 13:27, Anuj Gupta/Anuj Gupta wrote:
On 10/7/2026 7:12 AM, Pavel Begunkov wrote:+static int blkdev_init_dma_buf_io_ctx(struct file *file, + struct dma_buf_io_ctx *ctx) +{ + struct block_device *bdev = file_bdev(file); + struct gendisk *disk = bdev->bd_disk; + + if (!(file->f_flags & O_DIRECT)) + return -EINVAL; + if (!disk->fops->init_dma_buf_io_ctx) + return -EOPNOTSUPP;dma-buf doesn't work with PI: bi_dmabuf_map aliases bi_io_vec, and blk_integrity_iterate() walks it as bvecs to generate/verify the checksum. rw-dmabuf liburing test hangs on a PI enabled NVMe. Something like below is needed:
Thanks, I already took it into v10! There is some some confusion with the branches, but will get incorporated in either case. -- Pavel Begunkov
