lkml.org 
[lkml]   [2018]   [Mar]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 1/5] powerpc: mm: Simplify page_is_ram by using memblock_is_memory
Date
Instead of open-coding the search in page_is_ram, call memblock_is_memory.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
---

v2: no changes
---
arch/powerpc/mm/mem.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index fe8c61149fb8..da4e1555d61d 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -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
}

--
2.16.2
\
 
 \ /
  Last update: 2018-03-28 02:26    [W:0.079 / U:1.528 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site