From: Zhen Lei <thunder.leizhen@huawei.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.com>, Tejun Heo <tj@kernel.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Vladimir Davydov <vdavydov@parallels.com>,
Joonsoo Kim <js1304@gmail.com>, linux-mm <linux-mm@kvack.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Cc: Zefan Li <lizefan@huawei.com>, Xinwei Hu <huxinwei@huawei.com>,
Tianhong Ding <dingtianhong@huawei.com>,
Hanjun Guo <guohanjun@huawei.com>,
Zhen Lei <thunder.leizhen@huawei.com>
Subject: [PATCH 1/1] mm: fix type information of memoryless node
Date: Sat, 29 Aug 2015 15:34:45 +0800 [thread overview]
Message-ID: <1440833685-32372-1-git-send-email-thunder.leizhen@huawei.com> (raw)
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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next reply other threads:[~2015-08-29 7:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-29 7:34 Zhen Lei [this message]
2015-09-01 21:54 ` [PATCH 1/1] mm: fix type information of memoryless node David Rientjes
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