* [PATCH 1/1] mm: fix type information of memoryless node
@ 2015-08-29 7:34 Zhen Lei
2015-09-01 21:54 ` David Rientjes
0 siblings, 1 reply; 2+ messages in thread
From: Zhen Lei @ 2015-08-29 7:34 UTC (permalink / raw)
To: Andrew Morton, Michal Hocko, Tejun Heo, Johannes Weiner,
Vladimir Davydov, Joonsoo Kim, linux-mm, linux-kernel
Cc: Zefan Li, Xinwei Hu, Tianhong Ding, Hanjun Guo, Zhen Lei
For a memoryless node, the output of get_pfn_range_for_nid are all zero.
It will display mem from 0 to -1.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
---
mm/page_alloc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5b5240b..5839f31 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5455,7 +5455,8 @@ void __paginginit free_area_init_node(int nid, unsigned long *zones_size,
#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
get_pfn_range_for_nid(nid, &start_pfn, &end_pfn);
pr_info("Initmem setup node %d [mem %#018Lx-%#018Lx]\n", nid,
- (u64)start_pfn << PAGE_SHIFT, ((u64)end_pfn << PAGE_SHIFT) - 1);
+ (u64)start_pfn << PAGE_SHIFT,
+ end_pfn ? ((u64)end_pfn << PAGE_SHIFT) - 1 : 0);
#endif
calculate_node_totalpages(pgdat, start_pfn, end_pfn,
zones_size, zholes_size);
--
2.5.0
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* Re: [PATCH 1/1] mm: fix type information of memoryless node
2015-08-29 7:34 [PATCH 1/1] mm: fix type information of memoryless node Zhen Lei
@ 2015-09-01 21:54 ` David Rientjes
0 siblings, 0 replies; 2+ messages in thread
From: David Rientjes @ 2015-09-01 21:54 UTC (permalink / raw)
To: Zhen Lei
Cc: Andrew Morton, Michal Hocko, Tejun Heo, Johannes Weiner,
Vladimir Davydov, Joonsoo Kim, linux-mm, linux-kernel, Zefan Li,
Xinwei Hu, Tianhong Ding, Hanjun Guo
On Sat, 29 Aug 2015, Zhen Lei wrote:
> For a memoryless node, the output of get_pfn_range_for_nid are all zero.
> It will display mem from 0 to -1.
>
> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Acked-by: David Rientjes <rientjes@google.com>
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