Re: Finding an available fss device

[Emmanuel Dreyfus <manu%netbsd.org@localhost>]

On Thu, Aug 16, 2018 at 12:18:34PM +0200, J. Hannken-Illjes wrote:
> - 001_add_sc_state replaces the flags FSS_ACTIVE and FSS_ERROR with
> a state field.
> 
> - 002_extend_state adds states for construction or destruction of
> a snapshot and fss_ioctl no longer blocks forever waiting for
> construction or destruction of a snapshot to complete.
> 
> Opinions?

I applied that to NetBSD-8.0, and it seems to behave much better.

What about the deadlock scenario you mentionned, e.g. taking 
multiple snapshots of / at the same time, or a snapshot of / 
and /home at the same time? Should they work with this patch?



-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost