On Thu, Aug 17, 2017 at 5:47 AM, Austin S. Hemmelgarn
[off-list ref] wrote:

Also, I don't think I've ever seen any patches posted from a Red Hat address
on the ML, so I don't think they were really all that involved in
development to begin with.

Unfortunately the email domain doesn't tell the whole story who's
backing development, the company or the individual.

[chris@f26s linux]$ git log --since=”2016-01-01” --pretty=format:"%an
%ae" --no-merges -- fs/btrfs | sort -u | grep redhat
Andreas Gruenbacher agruenba@redhat.com
David Howells dhowells@redhat.com
Eric Sandeen sandeen@redhat.com
Jeff Layton jlayton@redhat.com
Mike Christie mchristi@redhat.com
Miklos Szeredi mszeredi@redhat.com
$

GFS and GlusterFS are different technologies, unless Red Hat's marketing
department is trying to be actively deceptive.

https://www.redhat.com/en/technologies/storage

Seems very clear. I don't even see GFS or GFS2 on here. It's Gluster and Ceph.

SUSE is also pretty actively involved in the development too, and I think
Fujitsu is as well.

quoted

I'm not too worried.  I'll keep using btrfs as it is now, within the
limits of what it can consistently do, and do what I can to help
support the effort.  I'm not a file system coder, but I very much
appreciate the enormous amount of work that goes into btrfs.

Steady on, ButterFS people.  Back now to cat videos.

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Big bunch of SUSE contributions (yes David Sterba is counted three
times here), and Fujitsu.

[chris@f26s linux]$ git log --since=”2016-01-01” --pretty=format:"%an
%ae" --no-merges -- fs/btrfs | sort -u | grep suse
Borislav Petkov bp@suse.de
David Sterba dsterba@suse.com
David Sterba DSterba@suse.com
David Sterba dsterba@suse.cz
Edmund Nadolski enadolski@suse.com
Filipe Manana fdmanana@suse.com
Goldwyn Rodrigues rgoldwyn@suse.com
Guoqing Jiang gqjiang@suse.com
Jan Kara jack@suse.cz
Jeff Mahoney jeffm@suse.com
Jiri Kosina jkosina@suse.cz
Mark Fasheh mfasheh@suse.de
Michal Hocko mhocko@suse.com
NeilBrown neilb@suse.com
Nikolay Borisov nborisov@suse.com
Petr Mladek pmladek@suse.com

[chris@f26s linux]$ git log --since=”2016-01-01” --pretty=format:"%an
%ae" --no-merges -- fs/btrfs | sort -u | grep fujitsu
Lu Fengqi lufq.fnst@cn.fujitsu.com
Qu Wenruo quwenruo@cn.fujitsu.com
Satoru Takeuchi takeuchi_satoru@jp.fujitsu.com
Su Yue suy.fnst@cn.fujitsu.com
Tsutomu Itoh t-itoh@jp.fujitsu.com
Wang Xiaoguang wangxg.fnst@cn.fujitsu.com
Xiaoguang Wang wangxg.fnst@cn.fujitsu.com
Zhao Lei zhaolei@cn.fujitsu.com


Over the past 18 months, it's about 100 Btrfs contributors, 71 ext4,
63 XFS. So all three have many contributors. That of course does not
tell the whole story by any means.

-- 
Chris Murphy