[PATCH 2/5] powerpc: mm: Use memblock API for PPC32 page_is_ram

From: Jonathan NeuschÃfer
Date: Thu Feb 22 2018 - 07:16:12 EST


To support accurate checking for different blocks of memory on PPC32,
use the same memblock-based approach that's already used on PPC64 also
on PPC32.

Signed-off-by: Jonathan NeuschÃfer <j.neuschaefer@xxxxxxx>
---
arch/powerpc/mm/mem.c | 4 ----
1 file changed, 4 deletions(-)

diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index da4e1555d61d..a42b86e2a34c 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -82,11 +82,7 @@ static inline pte_t *virt_to_kpte(unsigned long vaddr)

int page_is_ram(unsigned long pfn)
{
-#ifndef CONFIG_PPC64 /* XXX for now */
- return pfn < max_pfn;
-#else
return memblock_is_memory(__pfn_to_phys(pfn));
-#endif
}

pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
--
2.16.1