alloc bootmem for UMA

[Abhishek Tiwari <abhishekt@in.niksun.com>]

In mm/bootmem.c

in __alloc_bootmem(....)
there is

    for_each_pgdat(pgdat)
        if ((ptr = __alloc_bootmem_core(pgdat->bdata, size,
                        align, goal)))
            return(ptr);

since this is for UMA, shouldnt __alloc_bootmem_core be called
with contig_page_data ..??
why for_each_pgdat(pgdat) ???

Abhishek

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