[openib-general] [PATCH untested] IB/mthca: avoid wasting MTT enties on memfree

[Michael S. Tsirkin]

Subject: Re: [PATCH untested] IB/mthca: avoid wasting MTT enties on memfree

> Have you tested this?

No, didn't I make this clear? Sorry. I'm not in the lab at the moment,
and my laptop does not have infiniband.
That's why it says untested in the subject :).

> I think it increases the amount of memory
> needed for the buddy allocator bitmaps by a factor of 8, and right now
> those bitmaps are kmalloc()ed.  So I'd be aftraid that it would make
> it impossible to load the module.

Hmph. We'll need to make these 2-level then?

> Anyway this is definitely 2.6.21 material given that we're already at
> 2.6.20-rc4, and this change is has a decent chance of introducing regressions.

OK.

-- 
MST