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cgroup: convert cgroup_cft_commit() to use cgroup_for_each_descendant_pre()

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We used root->allcg_list to iterate cgroup hierarchy because at that time
cgroup_for_each_descendant_pre() hasn't been invented.

tj: In cgroup_cfts_commit(), s/@serial_nr/@update_upto/, move the
    assignment right above releasing cgroup_mutex and explain what's
    going on there.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Li Zefan
2013-06-18 18:48:37 +08:00
committed by Tejun Heo
parent 794611a1df
commit e8c82d20a9
2 changed files with 44 additions and 42 deletions
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6
include/linux/cgroup.h
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@@ -206,9 +206,6 @@ struct cgroup {
*/
struct list_head cset_links;
struct list_head allcg_node; /* cgroupfs_root->allcg_list */
struct list_head cft_q_node; /* used during cftype add/rm */
/*
* Linked list running through all cgroups that can
* potentially be reaped by the release agent. Protected by
@@ -313,9 +310,6 @@ struct cgroupfs_root {
/* A list running through the active hierarchies */
struct list_head root_list;
/* All cgroups on this root, cgroup_mutex protected */
struct list_head allcg_list;
/* Hierarchy-specific flags */
unsigned long flags;