[PATCH 13/14] cgroup: don't use idr_remove_all()

[Tejun Heo]

idr_destroy() can destroy idr by itself and idr_remove_all() is being
deprecated.  Drop its usage.

Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Cc: Li Zefan <lizefan@xxxxxxxxxx>
Cc: containers@xxxxxxxxxxxxxxxxxxxxxxxxxx
Cc: cgroups@xxxxxxxxxxxxxxx
---
This patch depends on an earlier idr patch and given the trivial
nature of the patch, I think it would be best to route these together
through -mm.  Please holler if there's any objection.

Thanks.

 kernel/cgroup.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 4855892..6b18c5c 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -4567,10 +4567,8 @@ void cgroup_unload_subsys(struct cgroup_subsys *ss)
 	offline_css(ss, dummytop);
 	ss->active = 0;
 
-	if (ss->use_id) {
-		idr_remove_all(&ss->idr);
+	if (ss->use_id)
 		idr_destroy(&ss->idr);
-	}
 
 	/* deassign the subsys_id */
 	subsys[ss->subsys_id] = NULL;
-- 
1.8.1

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