Re: [PATCH 10/13] block: Call drain callbacks only once

[Vladimir Sementsov-Ogievskiy]

On 11/8/22 15:37, Kevin Wolf wrote:
> One thing that gets in the way is the 'ignore_bds_parents' parameter in
> bdrv_do_drained_begin_quiesce() and bdrv_do_drained_end(): If it is true
> for the first drain, bs->quiesce_counter will be non-zero, but the
> parent callbacks still haven't been called, so a second drain where it
> is false would still have to call them.

This paragraph breaks my brain :/

Still, I understand the new concept and believe that dropping ignore_bds_parents 
and just call the callbacks once (and stop the recursion when we found 
quiesce_counter > 0) is a good way.

--
Best regards,
Vladimir