Re: [dm-devel] [PATCH 1/2] dm thin: fix memory leak of singleton bio-prison cell

[Joe Thornber <thornber redhat com>]

On Thu, Apr 12, 2012 at 06:34:34PM -0400, Mike Snitzer wrote:
> Add missing mempool_free() to __cell_release_singleton().
> 
> This is a pretty significant leak that will accumulate to over 2GB of
> leaked memory just from running the full thinp-test-suite.

When was this introduced?  With agk's tweaks for 3.4?