[dm-devel] [PATCH 4/8] [dm-bio-prison] Change the bio-prison interface so the memory for the cells is passed in.

[Alasdair G Kergon]

On Mon, Jan 14, 2013 at 02:06:58PM +0000, Joe Thornber wrote:
> On Mon, Jan 14, 2013 at 10:02:59AM +0000, Alasdair G Kergon wrote:
> > What is the motivation for changing this?
> Avoiding allocating memory on the main map path for dm-cache.
 
What is the different about dm-cache that makes this a problem
where it is not a problem for dm-thin?

Alasdair