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| author | Tejun Heo <tj@kernel.org> | 2013-08-09 04:11:24 +0400 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2013-08-09 04:11:24 +0400 |
| commit | 182446d087906de40e514573a92a97b203695f71 (patch) | |
| tree | 6aee96219c82d0a64b9d389c50666c1ce0ec27ee /mm/vmpressure.c | |
| parent | 67f4c36f83455b253445b2cb28ac9a2c4f85d99a (diff) | |
| download | linux-182446d087906de40e514573a92a97b203695f71.tar.xz | |
cgroup: pass around cgroup_subsys_state instead of cgroup in file methods
cgroup is currently in the process of transitioning to using struct
cgroup_subsys_state * as the primary handle instead of struct cgroup.
Please see the previous commit which converts the subsystem methods
for rationale.
This patch converts all cftype file operations to take @css instead of
@cgroup. cftypes for the cgroup core files don't have their subsytem
pointer set. These will automatically use the dummy_css added by the
previous patch and can be converted the same way.
Most subsystem conversions are straight forwards but there are some
interesting ones.
* freezer: update_if_frozen() is also converted to take @css instead
of @cgroup for consistency. This will make the code look simpler
too once iterators are converted to use css.
* memory/vmpressure: mem_cgroup_from_css() needs to be exported to
vmpressure while mem_cgroup_from_cont() can be made static.
Updated accordingly.
* cpu: cgroup_tg() doesn't have any user left. Removed.
* cpuacct: cgroup_ca() doesn't have any user left. Removed.
* hugetlb: hugetlb_cgroup_form_cgroup() doesn't have any user left.
Removed.
* net_cls: cgrp_cls_state() doesn't have any user left. Removed.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Aristeu Rozanski <aris@redhat.com>
Acked-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'mm/vmpressure.c')
| -rw-r--r-- | mm/vmpressure.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/vmpressure.c b/mm/vmpressure.c index 7f1654d3cec7..2a8a736e95cc 100644 --- a/mm/vmpressure.c +++ b/mm/vmpressure.c @@ -81,8 +81,8 @@ static struct vmpressure *cg_to_vmpressure(struct cgroup *cg) static struct vmpressure *vmpressure_parent(struct vmpressure *vmpr) { - struct cgroup *cg = vmpressure_to_css(vmpr)->cgroup; - struct mem_cgroup *memcg = mem_cgroup_from_cont(cg); + struct cgroup_subsys_state *css = vmpressure_to_css(vmpr); + struct mem_cgroup *memcg = mem_cgroup_from_css(css); memcg = parent_mem_cgroup(memcg); if (!memcg) |