cgroup: more naming cleanups

Constantly use @cset for css_set variables and use @cgrp as cgroup
variables.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 297462b..00a7e07 100644 (file)
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -394,8 +394,8 @@ struct cgroup_map_cb {
 
 /* cftype->flags */
 enum {
-       CFTYPE_ONLY_ON_ROOT     = (1 << 0),     /* only create on root cg */
-       CFTYPE_NOT_ON_ROOT      = (1 << 1),     /* don't create on root cg */
+       CFTYPE_ONLY_ON_ROOT     = (1 << 0),     /* only create on root cgrp */
+       CFTYPE_NOT_ON_ROOT      = (1 << 1),     /* don't create on root cgrp */
        CFTYPE_INSANE           = (1 << 2),     /* don't create if sane_behavior */
 };
 
@@ -513,7 +513,7 @@ struct cftype_set {
 };
 
 struct cgroup_scanner {
-       struct cgroup *cg;
+       struct cgroup *cgrp;
        int (*test_task)(struct task_struct *p, struct cgroup_scanner *scan);
        void (*process_task)(struct task_struct *p,
                        struct cgroup_scanner *scan);

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index ed21043..9577beb 100644 (file)
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -466,7 +466,7 @@ static inline void put_css_set_taskexit(struct css_set *cset)
  * @new_cgrp: cgroup that's being entered by the task
  * @template: desired set of css pointers in css_set (pre-calculated)
  *
- * Returns true if "cg" matches "old_cg" except for the hierarchy
+ * Returns true if "cset" matches "old_cset" except for the hierarchy
  * which "new_cgrp" belongs to, for which it should match "new_cgrp".
  */
 static bool compare_css_sets(struct css_set *cset,
@@ -1839,7 +1839,7 @@ EXPORT_SYMBOL_GPL(task_cgroup_path_from_hierarchy);
 struct task_and_cgroup {
        struct task_struct      *task;
        struct cgroup           *cgrp;
-       struct css_set          *cg;
+       struct css_set          *cset;
 };
 
 struct cgroup_taskset {
@@ -2057,8 +2057,8 @@ static int cgroup_attach_task(struct cgroup *cgrp, struct task_struct *tsk,
 
                tc = flex_array_get(group, i);
                old_cset = task_css_set(tc->task);
-               tc->cg = find_css_set(old_cset, cgrp);
-               if (!tc->cg) {
+               tc->cset = find_css_set(old_cset, cgrp);
+               if (!tc->cset) {
                        retval = -ENOMEM;
                        goto out_put_css_set_refs;
                }
@@ -2071,7 +2071,7 @@ static int cgroup_attach_task(struct cgroup *cgrp, struct task_struct *tsk,
         */
        for (i = 0; i < group_size; i++) {
                tc = flex_array_get(group, i);
-               cgroup_task_migrate(tc->cgrp, tc->task, tc->cg);
+               cgroup_task_migrate(tc->cgrp, tc->task, tc->cset);
        }
        /* nothing is sensitive to fork() after this point. */
 
@@ -2091,9 +2091,9 @@ out_put_css_set_refs:
        if (retval) {
                for (i = 0; i < group_size; i++) {
                        tc = flex_array_get(group, i);
-                       if (!tc->cg)
+                       if (!tc->cset)
                                break;
-                       put_css_set(tc->cg);
+                       put_css_set(tc->cset);
                }
        }
 out_cancel_attach:
@@ -2203,9 +2203,9 @@ int cgroup_attach_task_all(struct task_struct *from, struct task_struct *tsk)
 
        mutex_lock(&cgroup_mutex);
        for_each_active_root(root) {
-               struct cgroup *from_cg = task_cgroup_from_root(from, root);
+               struct cgroup *from_cgrp = task_cgroup_from_root(from, root);
 
-               retval = cgroup_attach_task(from_cg, tsk, false);
+               retval = cgroup_attach_task(from_cgrp, tsk, false);
                if (retval)
                        break;
        }
@@ -3305,8 +3305,8 @@ int cgroup_scan_tasks(struct cgroup_scanner *scan)
         * guarantees forward progress and that we don't miss any tasks.
         */
        heap->size = 0;
-       cgroup_iter_start(scan->cg, &it);
-       while ((p = cgroup_iter_next(scan->cg, &it))) {
+       cgroup_iter_start(scan->cgrp, &it);
+       while ((p = cgroup_iter_next(scan->cgrp, &it))) {
                /*
                 * Only affect tasks that qualify per the caller's callback,
                 * if he provided one
@@ -3339,7 +3339,7 @@ int cgroup_scan_tasks(struct cgroup_scanner *scan)
                 * the heap and wasn't inserted
                 */
        }
-       cgroup_iter_end(scan->cg, &it);
+       cgroup_iter_end(scan->cgrp, &it);
 
        if (heap->size) {
                for (i = 0; i < heap->size; i++) {
@@ -3385,7 +3385,7 @@ int cgroup_transfer_tasks(struct cgroup *to, struct cgroup *from)
 {
        struct cgroup_scanner scan;
 
-       scan.cg = from;
+       scan.cgrp = from;
        scan.test_task = NULL; /* select all tasks in cgroup */
        scan.process_task = cgroup_transfer_one_task;
        scan.heap = NULL;

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 703bfd5..1b9c315 100644 (file)
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -845,7 +845,7 @@ static void cpuset_change_cpumask(struct task_struct *tsk,
 {
        struct cpuset *cpus_cs;
 
-       cpus_cs = effective_cpumask_cpuset(cgroup_cs(scan->cg));
+       cpus_cs = effective_cpumask_cpuset(cgroup_cs(scan->cgrp));
        set_cpus_allowed_ptr(tsk, cpus_cs->cpus_allowed);
 }
 
@@ -866,7 +866,7 @@ static void update_tasks_cpumask(struct cpuset *cs, struct ptr_heap *heap)
 {
        struct cgroup_scanner scan;
 
-       scan.cg = cs->css.cgroup;
+       scan.cgrp = cs->css.cgroup;
        scan.test_task = NULL;
        scan.process_task = cpuset_change_cpumask;
        scan.heap = heap;
@@ -1062,7 +1062,7 @@ static void cpuset_change_task_nodemask(struct task_struct *tsk,
 static void cpuset_change_nodemask(struct task_struct *p,
                                   struct cgroup_scanner *scan)
 {
-       struct cpuset *cs = cgroup_cs(scan->cg);
+       struct cpuset *cs = cgroup_cs(scan->cgrp);
        struct mm_struct *mm;
        int migrate;
        nodemask_t *newmems = scan->data;
@@ -1102,7 +1102,7 @@ static void update_tasks_nodemask(struct cpuset *cs, struct ptr_heap *heap)
 
        guarantee_online_mems(mems_cs, &newmems);
 
-       scan.cg = cs->css.cgroup;
+       scan.cgrp = cs->css.cgroup;
        scan.test_task = NULL;
        scan.process_task = cpuset_change_nodemask;
        scan.heap = heap;
@@ -1275,7 +1275,7 @@ static int update_relax_domain_level(struct cpuset *cs, s64 val)
 static void cpuset_change_flag(struct task_struct *tsk,
                                struct cgroup_scanner *scan)
 {
-       cpuset_update_task_spread_flag(cgroup_cs(scan->cg), tsk);
+       cpuset_update_task_spread_flag(cgroup_cs(scan->cgrp), tsk);
 }
 
 /*
@@ -1295,7 +1295,7 @@ static void update_tasks_flags(struct cpuset *cs, struct ptr_heap *heap)
 {
        struct cgroup_scanner scan;
 
-       scan.cg = cs->css.cgroup;
+       scan.cgrp = cs->css.cgroup;
        scan.test_task = NULL;
        scan.process_task = cpuset_change_flag;
        scan.heap = heap;
@@ -1971,7 +1971,7 @@ static int cpuset_css_online(struct cgroup *cgrp)
        struct cpuset *cs = cgroup_cs(cgrp);
        struct cpuset *parent = parent_cs(cs);
        struct cpuset *tmp_cs;
-       struct cgroup *pos_cg;
+       struct cgroup *pos_cgrp;
 
        if (!parent)
                return 0;
@@ -2003,7 +2003,7 @@ static int cpuset_css_online(struct cgroup *cgrp)
         * (and likewise for mems) to the new cgroup.
         */
        rcu_read_lock();
-       cpuset_for_each_child(tmp_cs, pos_cg, parent) {
+       cpuset_for_each_child(tmp_cs, pos_cgrp, parent) {
                if (is_mem_exclusive(tmp_cs) || is_cpu_exclusive(tmp_cs)) {
                        rcu_read_unlock();
                        goto out_unlock;