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

[Alasdair G Kergon]

On Mon, Apr 23, 2012 at 08:24:08AM +0100, Joe Thornber wrote:
> 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?
 
I think it was here:
  http://www.redhat.com/archives/dm-devel/2012-March/msg00080.html

Localised fix:
  http://people.redhat.com/agk/patches/linux/editing/dm-thin-reinstate-missing-mempool_free-in-cell_release_singleton.patch

Alasdair