path: root/mm/vmpressure.c
diff options
authorTejun Heo <>2013-08-08 20:11:24 -0400
committerTejun Heo <>2013-08-08 20:11:24 -0400
commit182446d087906de40e514573a92a97b203695f71 (patch)
tree6aee96219c82d0a64b9d389c50666c1ce0ec27ee /mm/vmpressure.c
parent67f4c36f83455b253445b2cb28ac9a2c4f85d99a (diff)
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 <> Acked-by: Li Zefan <> Acked-by: Michal Hocko <> Acked-by: Vivek Goyal <> Acked-by: Aristeu Rozanski <> Acked-by: Daniel Wagner <> Cc: Peter Zijlstra <> Cc: Ingo Molnar <> Cc: Johannes Weiner <> Cc: Balbir Singh <> Cc: Matt Helsley <> Cc: Jens Axboe <> Cc: Steven Rostedt <>
Diffstat (limited to 'mm/vmpressure.c')
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)