[dm-devel] slab: introduce the flag SLAB_MINIMIZE_WASTE

[Mikulas Patocka]

On Mon, 16 Apr 2018, Christopher Lameter wrote:

> On Mon, 16 Apr 2018, Mikulas Patocka wrote:
> 
> > > Please clarify further, thanks!
> > > Mike
> >
> > Yes, using a slab cache currently doesn't avoid this rouding (it needs the
> > SLAB_MINIMIZE_WASTE patch to do that).
> 
> Or an increase in slab_max_order

But that will increase it for all slabs (often senselessly - i.e. 
kmalloc-4096 would have order 4MB).

I need to increase it just for dm-bufio slabs.

Mikulas