# Re: \[PATCH v11 14/14\] btrfs: send: enable support for stream v2 and compressed writes

- From: Omar Sandoval \<osandov@osandov.com\>
- Date: 2021-10-18 18:34:25 
- List: linux-btrfs
- Page: https://ratatoskr.run/linux-btrfs/2021/10/216341
- Thread: https://ratatoskr.run/linux-btrfs/2021/09/213534/t.md

```text
On Mon, Oct 18, 2021 at 03:44:23PM +0300, Nikolay Borisov wrote:
> 
> 
> On 1.09.21 г. 20:01, Omar Sandoval wrote:
> > From: Omar Sandoval <redacted>
> > 
> > Now that the new support is implemented, allow the ioctl to accept the
> > flags and update the version in sysfs.
> 
> This seems like an appropriate place to bring up the discussion about
> versioned streams. SO instead of adding a BTRFS_SEND_FLAG_STREAM_V2
> flag, which implies that for the next version we have to add
> BTRFS_SEND_FLAG_STREAM_V3 etc. Why not generalize the flag to
> BTRFS_SEND_FLAG_STREAM_VERSIONED and carve an u32 from one of the
> reserved fields so that in the future we simply increment the version field?

Yes, that definitely sounds better.
```