From: Yang Shi <yang.shi@linaro.org>
To: akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linaro-kernel@lists.linaro.org, yang.shi@linaro.org
Subject: [PATCH] mm: use early_pfn_to_nid in register_page_bootmem_info_node
Date: Wed, 25 May 2016 14:00:07 -0700 [thread overview]
Message-ID: <1464210007-30930-1-git-send-email-yang.shi@linaro.org> (raw)
register_page_bootmem_info_node() is invoked in mem_init(), so it will be
called before page_alloc_init_late() if CONFIG_DEFERRED_STRUCT_PAGE_INIT
is enabled. But, pfn_to_nid() depends on memmap which won't be fully setup
until page_alloc_init_late() is done, so replace pfn_to_nid() by
early_pfn_to_nid().
Signed-off-by: Yang Shi <yang.shi@linaro.org>
---
mm/memory_hotplug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index caf2a14..b8ee080 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -300,7 +300,7 @@ void register_page_bootmem_info_node(struct pglist_data *pgdat)
* multiple nodes we check that this pfn does not already
* reside in some other nodes.
*/
- if (pfn_valid(pfn) && (pfn_to_nid(pfn) == node))
+ if (pfn_valid(pfn) && (early_pfn_to_nid(pfn) == node))
register_page_bootmem_info_section(pfn);
}
}
--
2.0.2
--
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next reply other threads:[~2016-05-25 21:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-25 21:00 Yang Shi [this message]
2016-05-25 22:23 ` [PATCH] mm: use early_pfn_to_nid in register_page_bootmem_info_node Andrew Morton
2016-05-25 22:36 ` Shi, Yang
2016-05-26 0:37 ` Joonsoo Kim
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