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powerpc/mm: Simplify page_is_ram by using memblock_is_memory

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Instead of open-coding the search in page_is_ram, call memblock_is_memory.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Jonathan Neuschäfer 2018-03-28 02:25:40 +02:00 committed by Michael Ellerman
parent 041413b88d
commit 2615c93e5f
1 changed files with 1 additions and 7 deletions
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8
arch/powerpc/mm/mem.c
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@ -85,13 +85,7 @@ int page_is_ram(unsigned long pfn)
#ifndef CONFIG_PPC64 /* XXX for now */
return pfn < max_pfn;
#else
unsigned long paddr = (pfn << PAGE_SHIFT);
struct memblock_region *reg;
for_each_memblock(memory, reg)
if (paddr >= reg->base && paddr < (reg->base + reg->size))
return 1;
return 0;
return memblock_is_memory(__pfn_to_phys(pfn));
#endif
}