[PATCH] powerpc: Record vma->phys_addr in ioremap()

[Michael Ellerman]

On Mon, 2010-11-29 at 15:56 +1100, Benjamin Herrenschmidt wrote:
> On Mon, 2010-11-29 at 15:26 +1100, Michael Ellerman wrote:
> > The vmalloc code can track the physical address of a vma, when the
> > vma is used for ioremap, if set it is displayed in /proc/vmallocinfo.
> > 
> > Because get_vm_area_caller() doesn't know it's being called for
> > ioremap() it's up to the arch code to set the phys_addr. A bunch
> > of other arch's do this, I'm not sure why powerpc doesn't?
> 
> Because I never noticed ? :-)

Yeah I figured. It seems to go back past 2.6.12 so who knows when it
went in, anyway it's useful.

cheers

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