Re: [RFC 1/6] block: refuse a dma-buf bio that carries a crypto context
- From
- Christoph Hellwig <hch@lst.de>
- Date
- 2026-11-06 10:41:25
- Also in
- linux-ext4, linux-fsdevel, linux-mm, linux-xfs, lkml, nvdimm
- Reply to
- Mengmeng Zhao, 2026-11-05
On Thu, Nov 05, 2026 at 02:58:42PM +0800, Mengmeng Zhao wrote:
quoted hunk ↗ jump to hunk
+ /* a dma-buf bio has no pages for integrity work or contents crypto */ if (unlikely(op_is_dmabuf(bio->bi_opf) && - bdev_has_integrity_csum(bio->bi_bdev))) { + (bdev_has_integrity_csum(bio->bi_bdev) || + bio_has_crypt_ctx(bio)))) {
This could really use a factored helper explaining all the refusals.
And maybe we should use the chance to sit back and think what else
would blow up and add it there as well.