[PATCH] kmemleak: Allow kmemleak to be built on powerpc

[Catalin Marinas]

On Fri, 2009-07-17 at 18:32 +1000, Michael Ellerman wrote:
> On Fri, 2009-07-17 at 09:26 +0100, Catalin Marinas wrote:
> > On Fri, 2009-07-17 at 10:29 +1000, Michael Ellerman wrote:
> > > The wrinkle is that lmb never frees, so by definition it can't leak :)
> > 
> > You can pass min_count = 0 to kmemleak_alloc() so that it would never
> > report such blocks as leaks (see the alloc_bootmem hooks).
> 
> OK. I couldn't see any description of what min_count meant anywhere,

There isn't any, indeed. I'll try to add some description to the
kmemleak api. But it basically means the minimum number a pointer value
should be found during scanning so that it is not reported as a leak. If
this value is 0, it would never be reported. The
kmalloc/kmem_cache_alloc have this value 1 and vmalloc is higher because
of other structures like vm_area holding pointers o the same block.

-- 
Catalin