On Mon, Jul 20, 2020 at 04:48:50PM +0000, Johannes Thumshirn wrote: > On 20/07/2020 15:45, Christoph Hellwig wrote: > > On Mon, Jul 20, 2020 at 10:21:18PM +0900, Johannes Thumshirn wrote: > >> On a successful completion, the position the data is written to is > >> returned via AIO's res2 field to the calling application. > > > > That is a major, and except for this changelog, undocumented ABI > > change. We had the whole discussion about reporting append results > > in a few threads and the issues with that in io_uring. So let's > > have that discussion there and don't mix it up with how zonefs > > writes data. Without that a lot of the boilerplate code should > > also go away. > > > > OK maybe I didn't remember correctly, but wasn't this all around > io_uring and how we'd report the location back for raw block device > access? Report the write offset. The author seems to be hell bent on making it block device specific, but that is a horrible idea as it is just as useful for normal file systems (or zonefs).
