From: Miaohe Lin linmiaohe@huawei.com
[ Upstream commit da63dc84befaa9e6079a0bc363ff0eaa975f9073 ]
Compaction sysfs file is created via compaction_register_node in register_node. But we forgot to remove it in unregister_node. Thus compaction sysfs file is leaked. Using compaction_unregister_node to fix this issue.
Link: https://lkml.kernel.org/r/20220401070905.43679-1-linmiaohe@huawei.com Fixes: ed4a6d7f0676 ("mm: compaction: add /sys trigger for per-node memory compaction") Signed-off-by: Miaohe Lin linmiaohe@huawei.com Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: Rafael J. Wysocki rafael@kernel.org Cc: Mel Gorman mel@csn.ul.ie Cc: Minchan Kim minchan.kim@gmail.com Cc: KAMEZAWA Hiroyuki kamezawa.hiroyu@jp.fujitsu.com Cc: KOSAKI Motohiro kosaki.motohiro@jp.fujitsu.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/base/node.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/base/node.c b/drivers/base/node.c index 503e2f90e58e..60c2e32f9f61 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -339,6 +339,7 @@ static int register_node(struct node *node, int num) */ void unregister_node(struct node *node) { + compaction_unregister_node(node); hugetlb_unregister_node(node); /* no-op, if memoryless node */
device_unregister(&node->dev);