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-rw-r--r--kernel/cgroup.c16
-rw-r--r--kernel/cgroup_freezer.c2
-rw-r--r--kernel/cpuset.c15
-rw-r--r--kernel/events/core.c2
-rw-r--r--kernel/sched/core.c4
5 files changed, 18 insertions, 21 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index a71f2e0f9711..e5bfb2a81dcb 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1907,18 +1907,20 @@ struct task_struct *cgroup_taskset_next(struct cgroup_taskset *tset)
EXPORT_SYMBOL_GPL(cgroup_taskset_next);
/**
- * cgroup_taskset_cur_cgroup - return the matching cgroup for the current task
+ * cgroup_taskset_cur_css - return the matching css for the current task
* @tset: taskset of interest
+ * @subsys_id: the ID of the target subsystem
*
- * Return the cgroup for the current (last returned) task of @tset. This
- * function must be preceded by either cgroup_taskset_first() or
- * cgroup_taskset_next().
+ * Return the css for the current (last returned) task of @tset for
+ * subsystem specified by @subsys_id. This function must be preceded by
+ * either cgroup_taskset_first() or cgroup_taskset_next().
*/
-struct cgroup *cgroup_taskset_cur_cgroup(struct cgroup_taskset *tset)
+struct cgroup_subsys_state *cgroup_taskset_cur_css(struct cgroup_taskset *tset,
+ int subsys_id)
{
- return tset->cur_cgrp;
+ return cgroup_css(tset->cur_cgrp, subsys_id);
}
-EXPORT_SYMBOL_GPL(cgroup_taskset_cur_cgroup);
+EXPORT_SYMBOL_GPL(cgroup_taskset_cur_css);
/**
* cgroup_taskset_size - return the number of tasks in taskset
diff --git a/kernel/cgroup_freezer.c b/kernel/cgroup_freezer.c
index 5cd2b6d55243..224da9aa27f5 100644
--- a/kernel/cgroup_freezer.c
+++ b/kernel/cgroup_freezer.c
@@ -189,7 +189,7 @@ static void freezer_attach(struct cgroup_subsys_state *new_css,
* current state before executing the following - !frozen tasks may
* be visible in a FROZEN cgroup and frozen tasks in a THAWED one.
*/
- cgroup_taskset_for_each(task, new_css->cgroup, tset) {
+ cgroup_taskset_for_each(task, new_css, tset) {
if (!(freezer->state & CGROUP_FREEZING)) {
__thaw_task(task);
} else {
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 39e52175f4af..bf69717325b4 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -119,12 +119,6 @@ static inline struct cpuset *css_cs(struct cgroup_subsys_state *css)
return css ? container_of(css, struct cpuset, css) : NULL;
}
-/* Retrieve the cpuset for a cgroup */
-static inline struct cpuset *cgroup_cs(struct cgroup *cgrp)
-{
- return css_cs(cgroup_css(cgrp, cpuset_subsys_id));
-}
-
/* Retrieve the cpuset for a task */
static inline struct cpuset *task_cs(struct task_struct *task)
{
@@ -1459,7 +1453,7 @@ static int cpuset_can_attach(struct cgroup_subsys_state *css,
(cpumask_empty(cs->cpus_allowed) || nodes_empty(cs->mems_allowed)))
goto out_unlock;
- cgroup_taskset_for_each(task, css->cgroup, tset) {
+ cgroup_taskset_for_each(task, css, tset) {
/*
* Kthreads which disallow setaffinity shouldn't be moved
* to a new cpuset; we don't want to change their cpu
@@ -1511,9 +1505,10 @@ static void cpuset_attach(struct cgroup_subsys_state *css,
struct mm_struct *mm;
struct task_struct *task;
struct task_struct *leader = cgroup_taskset_first(tset);
- struct cgroup *oldcgrp = cgroup_taskset_cur_cgroup(tset);
+ struct cgroup_subsys_state *oldcss = cgroup_taskset_cur_css(tset,
+ cpuset_subsys_id);
struct cpuset *cs = css_cs(css);
- struct cpuset *oldcs = cgroup_cs(oldcgrp);
+ struct cpuset *oldcs = css_cs(oldcss);
struct cpuset *cpus_cs = effective_cpumask_cpuset(cs);
struct cpuset *mems_cs = effective_nodemask_cpuset(cs);
@@ -1527,7 +1522,7 @@ static void cpuset_attach(struct cgroup_subsys_state *css,
guarantee_online_mems(mems_cs, &cpuset_attach_nodemask_to);
- cgroup_taskset_for_each(task, css->cgroup, tset) {
+ cgroup_taskset_for_each(task, css, tset) {
/*
* can_attach beforehand should guarantee that this doesn't
* fail. TODO: have a better way to handle failure here
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 9705a0ed1dce..c199c4f24910 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -7816,7 +7816,7 @@ static void perf_cgroup_attach(struct cgroup_subsys_state *css,
{
struct task_struct *task;
- cgroup_taskset_for_each(task, css->cgroup, tset)
+ cgroup_taskset_for_each(task, css, tset)
task_function_call(task, __perf_cgroup_move, task);
}
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index cc9a49266382..a7122d5b8310 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7135,7 +7135,7 @@ static int cpu_cgroup_can_attach(struct cgroup_subsys_state *css,
{
struct task_struct *task;
- cgroup_taskset_for_each(task, css->cgroup, tset) {
+ cgroup_taskset_for_each(task, css, tset) {
#ifdef CONFIG_RT_GROUP_SCHED
if (!sched_rt_can_attach(css_tg(css), task))
return -EINVAL;
@@ -7153,7 +7153,7 @@ static void cpu_cgroup_attach(struct cgroup_subsys_state *css,
{
struct task_struct *task;
- cgroup_taskset_for_each(task, css->cgroup, tset)
+ cgroup_taskset_for_each(task, css, tset)
sched_move_task(task);
}