[dm-devel] [PATCH for-dm-3.14-fixes 6/8] dm thin: fix pool_preresume resize with heavy IO races

[Joe Thornber]

On Fri, Feb 21, 2014 at 09:37:47AM -0500, Mike Snitzer wrote:
> You may think it complicated, and yeah it isn't dead simple, but it
> unlocks the nuanced state that is needed to allow for fixing data space
> exhaustion that still allows for prepared_mappings to complete -- even
> though the pool is in read-only mode.

ok, but we still need a patch to stop the worker being woken while the
pool is suspended.