Messages in this thread Patch in this message | | | Date | Wed, 27 Jun 2012 14:59:07 +0900 | From | Yasuaki Ishimatsu <> | Subject | [RFC PATCH 12/12] memory-hotplug : remove sysfs file of node |
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The patch adds node_set_offline() and unregister_one_node() to remove_memory() for removing sysfs file of node.
CC: Len Brown <len.brown@intel.com> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: Paul Mackerras <paulus@samba.org> CC: Christoph Lameter <cl@linux.com> Cc: Minchan Kim <minchan.kim@gmail.com> CC: Andrew Morton <akpm@linux-foundation.org> CC: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> CC: Wen Congyang <wency@cn.fujitsu.com> Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
--- mm/memory_hotplug.c | 5 +++++ 1 file changed, 5 insertions(+)
Index: linux-3.5-rc4/mm/memory_hotplug.c =================================================================== --- linux-3.5-rc4.orig/mm/memory_hotplug.c 2012-06-26 14:32:03.630368866 +0900 +++ linux-3.5-rc4/mm/memory_hotplug.c 2012-06-26 14:39:58.090437374 +0900 @@ -702,6 +702,11 @@ int remove_memory(int nid, u64 start, u6 /* remove memmap entry */ firmware_map_remove(start, start + size, "System RAM");
+ if (!node_present_pages(nid)) { + node_set_offline(nid); + unregister_one_node(nid); + } + __remove_pages(start >> PAGE_SHIFT, size >> PAGE_SHIFT); unlock_memory_hotplug(); return 0;
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