On 03/08/2017 09:48 AM, Jan Kara wrote:

Hi!

patches in this series fix the most urgent bugs that were introduced by commit
165a5e22fafb "block: Move bdi_unregister() to del_gendisk()" and by
0dba1314d4f8 "scsi, block: fix duplicate bdi name registration crashes".
In fact before these commits we had a different set of problems in the
code but they were less visible :).

I'm still waiting for test confirmation from Omar and Arthur Marsh who reported
issues but I'm not able to hit any problem anymore in my testing.  I think it
would be nice to get the patches to rc2 so to speed up things I'm posting the
patches now so that review can happen in parallel with the testing.

Other BDI handling fixes I have in my queue can wait a bit more since they are
either theoretical or long-standing issues. So I'll repost them once these four
are sorted out.

Agree, we'll need to get this sorted for -rc2, thanks a lot for looking
into it. I'll queue these up for testing as well, and hopefully ship
them off tomorrow (or Friday, at the latest).

-- 
Jens Axboe