On Mon, Mar 23, 2009 at 01:10:30PM -0500, Anthony Liguori wrote: > I really dislike having so many APIs. I'd rather have an aio API that > took byte accesses or have pread/pwrite always be emulated with a full > sector read/write I had patches to change the aio API to byte based access, and get rid of the read/write methods to only have the byte based pread/pwrite APIs, but thay got obsoleted by Avi's patch to kill the pread/pwrite ops. We could put in byte-based AIO without byte-based read/write, though. In my patches I put a flag into BlockDriverState whether we allow byte-based access to this instance or otherwise emulated it in the block layer. We still need this as many of the image formats can't deal with byte-granularity access without read-modify-write cycles, and I think we're better off having one read-modify-write handler in the block handler than one per image format that needs it. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
