On Thu, Feb 13, 2025 at 04:51:55PM +0100, Ming Lei wrote: > On Thu, Feb 13, 2025 at 12:30:29AM -0800, Christoph Hellwig wrote: > > On Thu, Feb 13, 2025 at 04:02:46PM +0800, Ming Lei wrote: > > > The problem[1] is that this kind of mmc card fails to be recognized as > > > block disk. Block layer io split code can handle this case actually. > > > > When we still had bio_add_pc_page it would break the assumption that > > you could always add a full page. With that gone and everything going > > through the split machinery we might be fine now, but backporting it > > to 6.13 and earlier will cause breakage. > > Yes, I will mention the following two are depended for backporting in > commit log: > > 02ee5d69e3ba block: remove blk_rq_bio_prep > 6aeb4f836480 block: remove bio_add_pc_page Ming, is that sufficient for your use case? Or do you still need to remove the assumption that the "minimum" segment size is not PAGE_SIZE? > > Thanks, > Ming >
