[PATCH] Block layer stuff/DIO rewrite prep for 3.14

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

[PATCH] Block layer stuff/DIO rewrite prep for 3.14

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