diff options
| author | Tejun Heo <tj@kernel.org> | 2014-05-16 19:22:48 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2014-05-16 19:22:48 +0200 |
| commit | 5c9d535b893f30266ea29fe377cb9b002fcd76aa (patch) | |
| tree | 27b1fd6e16c5b0c0729a93c4924289119033137c /kernel/cpuset.c | |
| parent | cgroup: skip refcnting on normal root csses and cgrp_dfl_root self css (diff) | |
| download | linux-5c9d535b893f30266ea29fe377cb9b002fcd76aa.tar.xz linux-5c9d535b893f30266ea29fe377cb9b002fcd76aa.zip | |
cgroup: remove css_parent()
cgroup in general is moving towards using cgroup_subsys_state as the
fundamental structural component and css_parent() was introduced to
convert from using cgroup->parent to css->parent. It was quite some
time ago and we're moving forward with making css more prominent.
This patch drops the trivial wrapper css_parent() and let the users
dereference css->parent. While at it, explicitly mark fields of css
which are public and immutable.
v2: New usage from device_cgroup.c converted.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: "David S. Miller" <davem@davemloft.net>
Acked-by: Li Zefan <lizefan@huawei.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Diffstat (limited to 'kernel/cpuset.c')
| -rw-r--r-- | kernel/cpuset.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 2f4b08b8db24..5b2a31082f4f 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -124,7 +124,7 @@ static inline struct cpuset *task_cs(struct task_struct *task) static inline struct cpuset *parent_cs(struct cpuset *cs) { - return css_cs(css_parent(&cs->css)); + return css_cs(cs->css.parent); } #ifdef CONFIG_NUMA |