Now that immutable biovecs is in, these are the remaining patches required for my DIO rewrite, along with some related cleanup/refactoring. The key enabler is patch 4 - making generic_make_request() handle arbitary sized bios. This takes what was once bio_add_page()'s responsibility and pushes it down; long term plan is to hopefully push this down to the driver level, which should simplify a lot of code (a lot of it very fragile code!) and improve performance at the same time. The DIO rewrite needs some more work before it'll be ready, but I wanted to get this patch series out because this stuff should all be ready and it's useful for other reasons - I think this stuff will make it a lot easier for the btrfs people to do what they need with their DIO code. Other stuff enabled by this: * With this and the bio_split() rewrite already in, we can just delete merge_bvec_fn. I have patches for this, but they'll need more testing. * Multipage bvecs - bvecs pointing to an arbitrary amount of contiguous physical memory. I have this working but it'll need more testing and code auditing - this is what lets us kill bi_seg_front_size and bi_seg_back_size though. Patch series is based on Jens' for-next tree, and it's available in my git repository - git://evilpiepirate.org/~kent/linux-bcache.git for-jens -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
