Messages in this thread Patch in this message | | | From | wency@cn ... | Subject | [RFC PATCH V6 19/19] memory-hotplug: remove sysfs file of node | Date | Fri, 3 Aug 2012 15:49:21 +0800 |
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From: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
The patch adds node_set_offline() and unregister_one_node() to remove_memory() for removing sysfs file of node.
CC: David Rientjes <rientjes@google.com> CC: Jiang Liu <liuj97@gmail.com> 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 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 68d7123..7d68e0a 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1271,6 +1271,11 @@ int __ref remove_memory(int nid, u64 start, u64 size) /* remove memmap entry */ firmware_map_remove(start, start + size, "System RAM"); + if (!node_present_pages(nid)) { + node_set_offline(nid); + unregister_one_node(nid); + } + arch_remove_memory(start, size); out: unlock_memory_hotplug(); -- 1.7.1
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