qiurui
/
Centos-kernel-stream-9
mirror of https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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>
This commit is contained in:
Li Zefan 2013-07-31 16:18:36 +08:00 committed by Tejun Heo
parent e0798ce273
commit 6f4b7e632d
3 changed files with 24 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/linux/cgroup.h
View File

@ -394,8 +394,8 @@ struct cgroup_map_cb {
/* cftype->flags */ /* cftype->flags */
enum { enum {
CFTYPE_ONLY_ON_ROOT = (1 << 0), /* only 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 cg */ CFTYPE_NOT_ON_ROOT = (1 << 1), /* don't create on root cgrp */
CFTYPE_INSANE = (1 << 2), /* don't create if sane_behavior */ CFTYPE_INSANE = (1 << 2), /* don't create if sane_behavior */
}; };
@ -513,7 +513,7 @@ struct cftype_set {
}; };
struct cgroup_scanner { struct cgroup_scanner {
struct cgroup *cg; struct cgroup *cgrp;
int (*test_task)(struct task_struct *p, struct cgroup_scanner *scan); int (*test_task)(struct task_struct *p, struct cgroup_scanner *scan);
void (*process_task)(struct task_struct *p, void (*process_task)(struct task_struct *p,
struct cgroup_scanner *scan); struct cgroup_scanner *scan);

26
kernel/cgroup.c
View File

@ -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 * @new_cgrp: cgroup that's being entered by the task
* @template: desired set of css pointers in css_set (pre-calculated) * @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". * which "new_cgrp" belongs to, for which it should match "new_cgrp".
*/ */
static bool compare_css_sets(struct css_set *cset, 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_and_cgroup {
struct task_struct *task; struct task_struct *task;
struct cgroup *cgrp; struct cgroup *cgrp;
struct css_set *cg; struct css_set *cset;
}; };
struct cgroup_taskset { 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); tc = flex_array_get(group, i);
old_cset = task_css_set(tc->task); old_cset = task_css_set(tc->task);
tc->cg = find_css_set(old_cset, cgrp); tc->cset = find_css_set(old_cset, cgrp);
if (!tc->cg) { if (!tc->cset) {
retval = -ENOMEM; retval = -ENOMEM;
goto out_put_css_set_refs; 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++) { for (i = 0; i < group_size; i++) {
tc = flex_array_get(group, 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. */ /* nothing is sensitive to fork() after this point. */
@ -2091,9 +2091,9 @@ out_put_css_set_refs:
if (retval) { if (retval) {
for (i = 0; i < group_size; i++) { for (i = 0; i < group_size; i++) {
tc = flex_array_get(group, i); tc = flex_array_get(group, i);
if (!tc->cg) if (!tc->cset)
break; break;
put_css_set(tc->cg); put_css_set(tc->cset);
} }
} }
out_cancel_attach: out_cancel_attach:
@ -2203,9 +2203,9 @@ int cgroup_attach_task_all(struct task_struct *from, struct task_struct *tsk)
mutex_lock(&cgroup_mutex); mutex_lock(&cgroup_mutex);
for_each_active_root(root) { 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) if (retval)
break; break;
} }
@ -3305,8 +3305,8 @@ int cgroup_scan_tasks(struct cgroup_scanner *scan)
* guarantees forward progress and that we don't miss any tasks. * guarantees forward progress and that we don't miss any tasks.
*/ */
heap->size = 0; heap->size = 0;
cgroup_iter_start(scan->cg, &it); cgroup_iter_start(scan->cgrp, &it);
while ((p = cgroup_iter_next(scan->cg, &it))) { while ((p = cgroup_iter_next(scan->cgrp, &it))) {
/* /*
* Only affect tasks that qualify per the caller's callback, * Only affect tasks that qualify per the caller's callback,
* if he provided one * if he provided one
@ -3339,7 +3339,7 @@ int cgroup_scan_tasks(struct cgroup_scanner *scan)
* the heap and wasn't inserted * the heap and wasn't inserted
*/ */
} }
cgroup_iter_end(scan->cg, &it); cgroup_iter_end(scan->cgrp, &it);
if (heap->size) { if (heap->size) {
for (i = 0; i < heap->size; i++) { 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; struct cgroup_scanner scan;
scan.cg = from; scan.cgrp = from;
scan.test_task = NULL; /* select all tasks in cgroup */ scan.test_task = NULL; /* select all tasks in cgroup */
scan.process_task = cgroup_transfer_one_task; scan.process_task = cgroup_transfer_one_task;
scan.heap = NULL; scan.heap = NULL;

16
kernel/cpuset.c
View File

@ -845,7 +845,7 @@ static void cpuset_change_cpumask(struct task_struct *tsk,
{ {
struct cpuset *cpus_cs; 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); 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; struct cgroup_scanner scan;
scan.cg = cs->css.cgroup; scan.cgrp = cs->css.cgroup;
scan.test_task = NULL; scan.test_task = NULL;
scan.process_task = cpuset_change_cpumask; scan.process_task = cpuset_change_cpumask;
scan.heap = heap; 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, static void cpuset_change_nodemask(struct task_struct *p,
struct cgroup_scanner *scan) struct cgroup_scanner *scan)
{ {
struct cpuset *cs = cgroup_cs(scan->cg); struct cpuset *cs = cgroup_cs(scan->cgrp);
struct mm_struct *mm; struct mm_struct *mm;
int migrate; int migrate;
nodemask_t *newmems = scan->data; 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); guarantee_online_mems(mems_cs, &newmems);
scan.cg = cs->css.cgroup; scan.cgrp = cs->css.cgroup;
scan.test_task = NULL; scan.test_task = NULL;
scan.process_task = cpuset_change_nodemask; scan.process_task = cpuset_change_nodemask;
scan.heap = heap; 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, static void cpuset_change_flag(struct task_struct *tsk,
struct cgroup_scanner *scan) 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; struct cgroup_scanner scan;
scan.cg = cs->css.cgroup; scan.cgrp = cs->css.cgroup;
scan.test_task = NULL; scan.test_task = NULL;
scan.process_task = cpuset_change_flag; scan.process_task = cpuset_change_flag;
scan.heap = heap; scan.heap = heap;
@ -1971,7 +1971,7 @@ static int cpuset_css_online(struct cgroup *cgrp)
struct cpuset *cs = cgroup_cs(cgrp); struct cpuset *cs = cgroup_cs(cgrp);
struct cpuset *parent = parent_cs(cs); struct cpuset *parent = parent_cs(cs);
struct cpuset *tmp_cs; struct cpuset *tmp_cs;
struct cgroup *pos_cg; struct cgroup *pos_cgrp;
if (!parent) if (!parent)
return 0; return 0;
@ -2003,7 +2003,7 @@ static int cpuset_css_online(struct cgroup *cgrp)
* (and likewise for mems) to the new cgroup. * (and likewise for mems) to the new cgroup.
*/ */
rcu_read_lock(); 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)) { if (is_mem_exclusive(tmp_cs) || is_cpu_exclusive(tmp_cs)) {
rcu_read_unlock(); rcu_read_unlock();
goto out_unlock; goto out_unlock;