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| author | Tejun Heo <tj@kernel.org> | 2013-08-08 20:11:26 -0400 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2013-08-08 20:11:26 -0400 |
| commit | c59cd3d840b1b0a8f996cbbd9132128dcaabbeb9 (patch) | |
| tree | f2ad31b11b14c00cfaa5327a5a587fae56604866 /kernel/cgroup_freezer.c | |
| parent | 0942eeeef68f9493c1bcb1a52baf612b73fcf9fb (diff) | |
| download | linux-stable-c59cd3d840b1b0a8f996cbbd9132128dcaabbeb9.tar.gz linux-stable-c59cd3d840b1b0a8f996cbbd9132128dcaabbeb9.tar.bz2 linux-stable-c59cd3d840b1b0a8f996cbbd9132128dcaabbeb9.zip | |
cgroup: make cgroup_task_iter remember the cgroup being iterated
Currently all cgroup_task_iter functions require @cgrp to be passed
in, which is superflous and increases chance of usage error. Make
cgroup_task_iter remember the cgroup being iterated and drop @cgrp
argument from next and end functions.
This patch doesn't introduce any behavior differences.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Balbir Singh <bsingharora@gmail.com>
Diffstat (limited to 'kernel/cgroup_freezer.c')
| -rw-r--r-- | kernel/cgroup_freezer.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/kernel/cgroup_freezer.c b/kernel/cgroup_freezer.c index c9177f8fc661..e0ab9bfd679a 100644 --- a/kernel/cgroup_freezer.c +++ b/kernel/cgroup_freezer.c @@ -281,7 +281,7 @@ static void update_if_frozen(struct cgroup_subsys_state *css) /* are all tasks frozen? */ cgroup_task_iter_start(css->cgroup, &it); - while ((task = cgroup_task_iter_next(css->cgroup, &it))) { + while ((task = cgroup_task_iter_next(&it))) { if (freezing(task)) { /* * freezer_should_skip() indicates that the task @@ -296,7 +296,7 @@ static void update_if_frozen(struct cgroup_subsys_state *css) freezer->state |= CGROUP_FROZEN; out_iter_end: - cgroup_task_iter_end(css->cgroup, &it); + cgroup_task_iter_end(&it); out_unlock: spin_unlock_irq(&freezer->lock); } @@ -327,9 +327,9 @@ static void freeze_cgroup(struct freezer *freezer) struct task_struct *task; cgroup_task_iter_start(cgroup, &it); - while ((task = cgroup_task_iter_next(cgroup, &it))) + while ((task = cgroup_task_iter_next(&it))) freeze_task(task); - cgroup_task_iter_end(cgroup, &it); + cgroup_task_iter_end(&it); } static void unfreeze_cgroup(struct freezer *freezer) @@ -339,9 +339,9 @@ static void unfreeze_cgroup(struct freezer *freezer) struct task_struct *task; cgroup_task_iter_start(cgroup, &it); - while ((task = cgroup_task_iter_next(cgroup, &it))) + while ((task = cgroup_task_iter_next(&it))) __thaw_task(task); - cgroup_task_iter_end(cgroup, &it); + cgroup_task_iter_end(&it); } /** |