On Tue, Dec 01, 2020 at 05:54:18PM +0100, Christoph Hellwig wrote: > Replace the gendisk pointer in struct bio with a pointer to the newly > improved struct block device. From that the gendisk can be trivially > accessed with an extra indirection, but it also allows to directly > look up all information related to partition remapping. The extra indirection is often done in fast path, so just wondering why you don't consider to embed gendisk into block_device? Then the extra indirection can be avoided. Thanks, Ming
