On 5/20/26 09:30, Christoph Hellwig wrote:
On Mon, May 18, 2026 at 11:29:54AM +0100, Pavel Begunkov wrote:
BIO_ZONE_WRITE_PLUGGING, /* bio handled through zone write plugging */
BIO_EMULATES_ZONE_APPEND, /* bio emulates a zone append operation */
+ BIO_DMABUF_MAP, /* Using premmaped dma buffers */
Shouldn't this be a REQ_ flag as we should never mix and match bios with
and without this flag in a single request?
Do you mean adding both and propagating it from bio to req? submit_bio()
takes a bio, so we still need to set it there before it reaches blk-mq.
And there might be bio-based drivers using it in the future.
I think I forgot to reply to this, so let's do this now.
REQ_ is actually used by both bios and requests, so if you set it in
bio->bi_opf it will automatically get propagated to the request, but
it can also always be tested on the bio, including by bio-based
drivers.
Ah yes, good point, thanks
--
Pavel Begunkov
