sg duplicates a lot of block layer dio and copying code. The block layer is missing some things like mmap helpers and a way to support sg and st's reserve buffer. The next two patches move move functionality from sg to the block layer so later st and osst can use it, and then coverts sg to use the block layer helper. The goal is to kill scsi_execute_async and friends and covert the ULDs to use the block layer functions directly. This is nice because scsi_execute_async sucks and it actually duplicates block layer code, and in the end the scsi layer does not have to do any bio processing (which irks Jens :)), and we have common code for all ULDs. The patches were made over Jens's bsg branch in his block layer git tree on kernel.org. Sorry for the large patches. The sg conversion patch rips out alot of code duplicated in the block layer and the patch to add some missing functionality to the block layer has conversions to bsg, tgt, etc so git bisect works on it. - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
