[PATCH 7/9] v3 Define memory_block_size_bytes for powerpc/pseries

Balbir Singh balbir at linux.vnet.ibm.com
Mon Oct 4 05:27:01 EST 2010


* Dave Hansen <dave at linux.vnet.ibm.com> [2010-10-03 11:11:01]:

> On Sun, 2010-10-03 at 13:07 -0500, Robin Holt wrote:
> > On Sun, Oct 03, 2010 at 11:25:00PM +0530, Balbir Singh wrote:
> > > * Nathan Fontenot <nfont at austin.ibm.com> [2010-10-01 13:35:54]:
> > > 
> > > > Define a version of memory_block_size_bytes() for powerpc/pseries such that
> > > > a memory block spans an entire lmb.
> > > 
> > > I hope I am not missing anything obvious, but why not just call it
> > > lmb_size, why do we need memblock_size?
> > > 
> > > Is lmb_size == memblock_size after your changes true for all
> > > platforms?
> > 
> > What is an lmb?  I don't recall anything like lmb being referred to in
> > the rest of the kernel.
> 
> Heh.  It's the OpenFirmware name for a Logical Memory Block.  Basically
> what we use to determine the SECTION_SIZE on powerpc.  Probably not the
> best terminology to use elsewhere in the kernel.

Agreed for the kernel, this patch was for powerpc/pseries, hence was
checking in this context.

-- 
	Three Cheers,
	Balbir


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