Lines Matching full:cs
206 static inline struct cpuset *parent_cs(struct cpuset *cs) in parent_cs() argument
208 return css_cs(cs->css.parent); in parent_cs()
224 static inline bool is_cpuset_online(struct cpuset *cs) in is_cpuset_online() argument
226 return test_bit(CS_ONLINE, &cs->flags) && !css_is_dying(&cs->css); in is_cpuset_online()
229 static inline int is_cpu_exclusive(const struct cpuset *cs) in is_cpu_exclusive() argument
231 return test_bit(CS_CPU_EXCLUSIVE, &cs->flags); in is_cpu_exclusive()
234 static inline int is_mem_exclusive(const struct cpuset *cs) in is_mem_exclusive() argument
236 return test_bit(CS_MEM_EXCLUSIVE, &cs->flags); in is_mem_exclusive()
239 static inline int is_mem_hardwall(const struct cpuset *cs) in is_mem_hardwall() argument
241 return test_bit(CS_MEM_HARDWALL, &cs->flags); in is_mem_hardwall()
244 static inline int is_sched_load_balance(const struct cpuset *cs) in is_sched_load_balance() argument
246 return test_bit(CS_SCHED_LOAD_BALANCE, &cs->flags); in is_sched_load_balance()
249 static inline int is_memory_migrate(const struct cpuset *cs) in is_memory_migrate() argument
251 return test_bit(CS_MEMORY_MIGRATE, &cs->flags); in is_memory_migrate()
254 static inline int is_spread_page(const struct cpuset *cs) in is_spread_page() argument
256 return test_bit(CS_SPREAD_PAGE, &cs->flags); in is_spread_page()
259 static inline int is_spread_slab(const struct cpuset *cs) in is_spread_slab() argument
261 return test_bit(CS_SPREAD_SLAB, &cs->flags); in is_spread_slab()
264 static inline int is_partition_root(const struct cpuset *cs) in is_partition_root() argument
266 return cs->partition_root_state > 0; in is_partition_root()
272 static inline void notify_partition_change(struct cpuset *cs, in notify_partition_change() argument
276 cgroup_file_notify(&cs->partition_file); in notify_partition_change()
404 struct cpuset *cs; in guarantee_online_cpus() local
410 cs = task_cs(tsk); in guarantee_online_cpus()
412 while (!cpumask_intersects(cs->effective_cpus, pmask)) { in guarantee_online_cpus()
413 cs = parent_cs(cs); in guarantee_online_cpus()
414 if (unlikely(!cs)) { in guarantee_online_cpus()
425 cpumask_and(pmask, pmask, cs->effective_cpus); in guarantee_online_cpus()
442 static void guarantee_online_mems(struct cpuset *cs, nodemask_t *pmask) in guarantee_online_mems() argument
444 while (!nodes_intersects(cs->effective_mems, node_states[N_MEMORY])) in guarantee_online_mems()
445 cs = parent_cs(cs); in guarantee_online_mems()
446 nodes_and(*pmask, cs->effective_mems, node_states[N_MEMORY]); in guarantee_online_mems()
454 static void cpuset_update_task_spread_flag(struct cpuset *cs, in cpuset_update_task_spread_flag() argument
457 if (is_spread_page(cs)) in cpuset_update_task_spread_flag()
462 if (is_spread_slab(cs)) in cpuset_update_task_spread_flag()
486 * @cs: the cpuset that have cpumasks to be allocated.
492 static inline int alloc_cpumasks(struct cpuset *cs, struct tmpmasks *tmp) in alloc_cpumasks() argument
496 if (cs) { in alloc_cpumasks()
497 pmask1 = &cs->cpus_allowed; in alloc_cpumasks()
498 pmask2 = &cs->effective_cpus; in alloc_cpumasks()
499 pmask3 = &cs->subparts_cpus; in alloc_cpumasks()
526 * @cs: the cpuset that have cpumasks to be free.
529 static inline void free_cpumasks(struct cpuset *cs, struct tmpmasks *tmp) in free_cpumasks() argument
531 if (cs) { in free_cpumasks()
532 free_cpumask_var(cs->cpus_allowed); in free_cpumasks()
533 free_cpumask_var(cs->effective_cpus); in free_cpumasks()
534 free_cpumask_var(cs->subparts_cpus); in free_cpumasks()
545 * @cs: the cpuset that the trial cpuset duplicates
547 static struct cpuset *alloc_trial_cpuset(struct cpuset *cs) in alloc_trial_cpuset() argument
551 trial = kmemdup(cs, sizeof(*cs), GFP_KERNEL); in alloc_trial_cpuset()
560 cpumask_copy(trial->cpus_allowed, cs->cpus_allowed); in alloc_trial_cpuset()
561 cpumask_copy(trial->effective_cpus, cs->effective_cpus); in alloc_trial_cpuset()
567 * @cs: the cpuset to be freed
569 static inline void free_cpuset(struct cpuset *cs) in free_cpuset() argument
571 free_cpumasks(cs, NULL); in free_cpuset()
572 kfree(cs); in free_cpuset()
942 static void update_tasks_root_domain(struct cpuset *cs) in update_tasks_root_domain() argument
947 css_task_iter_start(&cs->css, 0, &it); in update_tasks_root_domain()
957 struct cpuset *cs = NULL; in rebuild_root_domains() local
972 cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) { in rebuild_root_domains()
974 if (cpumask_empty(cs->effective_cpus)) { in rebuild_root_domains()
979 css_get(&cs->css); in rebuild_root_domains()
983 update_tasks_root_domain(cs); in rebuild_root_domains()
986 css_put(&cs->css); in rebuild_root_domains()
1017 struct cpuset *cs; in rebuild_sched_domains_locked() local
1043 cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) { in rebuild_sched_domains_locked()
1044 if (!is_partition_root(cs)) { in rebuild_sched_domains_locked()
1048 if (!cpumask_subset(cs->effective_cpus, in rebuild_sched_domains_locked()
1080 * @cs: the cpuset in which each task's cpus_allowed mask needs to be changed
1082 * Iterate through each task of @cs updating its cpus_allowed to the
1086 static void update_tasks_cpumask(struct cpuset *cs) in update_tasks_cpumask() argument
1091 css_task_iter_start(&cs->css, 0, &it); in update_tasks_cpumask()
1093 set_cpus_allowed_ptr(task, cs->effective_cpus); in update_tasks_cpumask()
1100 * @cs: the cpuset the need to recompute the new effective_cpus mask
1109 struct cpuset *cs, struct cpuset *parent) in compute_effective_cpumask() argument
1114 cpumask_and(new_cpus, new_cpus, cs->cpus_allowed); in compute_effective_cpumask()
1117 cpumask_and(new_cpus, cs->cpus_allowed, parent->effective_cpus); in compute_effective_cpumask()
1344 * @cs: the cpuset to consider
1354 static void update_cpumasks_hier(struct cpuset *cs, struct tmpmasks *tmp) in update_cpumasks_hier() argument
1362 cpuset_for_each_descendant_pre(cp, pos_css, cs) { in update_cpumasks_hier()
1395 * for cs already in update_cpumask(). We should also call in update_cpumasks_hier()
1400 if ((cp != cs) && old_prs) { in update_cpumasks_hier()
1506 * @cs: Current cpuset
1509 static void update_sibling_cpumasks(struct cpuset *parent, struct cpuset *cs, in update_sibling_cpumasks() argument
1522 if (sibling == cs) in update_sibling_cpumasks()
1534 * @cs: the cpuset to consider
1538 static int update_cpumask(struct cpuset *cs, struct cpuset *trialcs, in update_cpumask() argument
1545 if (cs == &top_cpuset) in update_cpumask()
1567 if (cpumask_equal(cs->cpus_allowed, trialcs->cpus_allowed)) in update_cpumask()
1570 retval = validate_change(cs, trialcs); in update_cpumask()
1584 if (cs->partition_root_state) { in update_cpumask()
1588 if (update_parent_subparts_cpumask(cs, partcmd_update, in update_cpumask()
1594 cpumask_copy(cs->cpus_allowed, trialcs->cpus_allowed); in update_cpumask()
1599 if (cs->nr_subparts_cpus) { in update_cpumask()
1600 cpumask_andnot(cs->subparts_cpus, cs->subparts_cpus, in update_cpumask()
1601 cs->cpus_allowed); in update_cpumask()
1602 cs->nr_subparts_cpus = cpumask_weight(cs->subparts_cpus); in update_cpumask()
1606 update_cpumasks_hier(cs, &tmp); in update_cpumask()
1608 if (cs->partition_root_state) { in update_cpumask()
1609 struct cpuset *parent = parent_cs(cs); in update_cpumask()
1616 update_sibling_cpumasks(parent, cs, &tmp); in update_cpumask()
1706 * @cs: the cpuset in which each task's mems_allowed mask needs to be changed
1708 * Iterate through each task of @cs updating its mems_allowed to the
1712 static void update_tasks_nodemask(struct cpuset *cs) in update_tasks_nodemask() argument
1718 cpuset_being_rebound = cs; /* causes mpol_dup() rebind */ in update_tasks_nodemask()
1720 guarantee_online_mems(cs, &newmems); in update_tasks_nodemask()
1732 css_task_iter_start(&cs->css, 0, &it); in update_tasks_nodemask()
1743 migrate = is_memory_migrate(cs); in update_tasks_nodemask()
1745 mpol_rebind_mm(mm, &cs->mems_allowed); in update_tasks_nodemask()
1747 cpuset_migrate_mm(mm, &cs->old_mems_allowed, &newmems); in update_tasks_nodemask()
1755 * cs->old_mems_allowed. in update_tasks_nodemask()
1757 cs->old_mems_allowed = newmems; in update_tasks_nodemask()
1765 * @cs: the cpuset to consider
1775 static void update_nodemasks_hier(struct cpuset *cs, nodemask_t *new_mems) in update_nodemasks_hier() argument
1781 cpuset_for_each_descendant_pre(cp, pos_css, cs) { in update_nodemasks_hier()
1827 * Will take tasklist_lock, scan tasklist for tasks in cpuset cs,
1831 static int update_nodemask(struct cpuset *cs, struct cpuset *trialcs, in update_nodemask() argument
1840 if (cs == &top_cpuset) { in update_nodemask()
1865 if (nodes_equal(cs->mems_allowed, trialcs->mems_allowed)) { in update_nodemask()
1869 retval = validate_change(cs, trialcs); in update_nodemask()
1874 cs->mems_allowed = trialcs->mems_allowed; in update_nodemask()
1878 update_nodemasks_hier(cs, &trialcs->mems_allowed); in update_nodemask()
1894 static int update_relax_domain_level(struct cpuset *cs, s64 val) in update_relax_domain_level() argument
1901 if (val != cs->relax_domain_level) { in update_relax_domain_level()
1902 cs->relax_domain_level = val; in update_relax_domain_level()
1903 if (!cpumask_empty(cs->cpus_allowed) && in update_relax_domain_level()
1904 is_sched_load_balance(cs)) in update_relax_domain_level()
1913 * @cs: the cpuset in which each task's spread flags needs to be changed
1915 * Iterate through each task of @cs updating its spread flags. As this
1919 static void update_tasks_flags(struct cpuset *cs) in update_tasks_flags() argument
1924 css_task_iter_start(&cs->css, 0, &it); in update_tasks_flags()
1926 cpuset_update_task_spread_flag(cs, task); in update_tasks_flags()
1933 * cs: the cpuset to update
1939 static int update_flag(cpuset_flagbits_t bit, struct cpuset *cs, in update_flag() argument
1947 trialcs = alloc_trial_cpuset(cs); in update_flag()
1956 err = validate_change(cs, trialcs); in update_flag()
1960 balance_flag_changed = (is_sched_load_balance(cs) != in update_flag()
1963 spread_flag_changed = ((is_spread_slab(cs) != is_spread_slab(trialcs)) in update_flag()
1964 || (is_spread_page(cs) != is_spread_page(trialcs))); in update_flag()
1967 cs->flags = trialcs->flags; in update_flag()
1974 update_tasks_flags(cs); in update_flag()
1982 * cs: the cpuset to update
1987 static int update_prstate(struct cpuset *cs, int new_prs) in update_prstate() argument
1989 int err, old_prs = cs->partition_root_state; in update_prstate()
1990 struct cpuset *parent = parent_cs(cs); in update_prstate()
2013 if (cpumask_empty(cs->cpus_allowed)) in update_prstate()
2016 err = update_flag(CS_CPU_EXCLUSIVE, cs, 1); in update_prstate()
2020 err = update_parent_subparts_cpumask(cs, partcmd_enable, in update_prstate()
2023 update_flag(CS_CPU_EXCLUSIVE, cs, 0); in update_prstate()
2032 update_flag(CS_CPU_EXCLUSIVE, cs, 0); in update_prstate()
2037 err = update_parent_subparts_cpumask(cs, partcmd_disable, in update_prstate()
2043 update_flag(CS_CPU_EXCLUSIVE, cs, 0); in update_prstate()
2054 update_sibling_cpumasks(parent, cs, &tmpmask); in update_prstate()
2060 cs->partition_root_state = new_prs; in update_prstate()
2062 notify_partition_change(cs, old_prs, new_prs); in update_prstate()
2176 struct cpuset *cs; in cpuset_can_attach() local
2182 cs = css_cs(css); in cpuset_can_attach()
2189 (cpumask_empty(cs->cpus_allowed) || nodes_empty(cs->mems_allowed))) in cpuset_can_attach()
2193 ret = task_can_attach(task, cs->cpus_allowed); in cpuset_can_attach()
2205 cs->attach_in_progress++; in cpuset_can_attach()
2237 struct cpuset *cs; in cpuset_attach() local
2241 cs = css_cs(css); in cpuset_attach()
2245 guarantee_online_mems(cs, &cpuset_attach_nodemask_to); in cpuset_attach()
2248 if (cs != &top_cpuset) in cpuset_attach()
2259 cpuset_update_task_spread_flag(cs, task); in cpuset_attach()
2266 cpuset_attach_nodemask_to = cs->effective_mems; in cpuset_attach()
2281 if (is_memory_migrate(cs)) in cpuset_attach()
2289 cs->old_mems_allowed = cpuset_attach_nodemask_to; in cpuset_attach()
2291 cs->attach_in_progress--; in cpuset_attach()
2292 if (!cs->attach_in_progress) in cpuset_attach()
2322 struct cpuset *cs = css_cs(css); in cpuset_write_u64() local
2328 if (!is_cpuset_online(cs)) { in cpuset_write_u64()
2335 retval = update_flag(CS_CPU_EXCLUSIVE, cs, val); in cpuset_write_u64()
2338 retval = update_flag(CS_MEM_EXCLUSIVE, cs, val); in cpuset_write_u64()
2341 retval = update_flag(CS_MEM_HARDWALL, cs, val); in cpuset_write_u64()
2344 retval = update_flag(CS_SCHED_LOAD_BALANCE, cs, val); in cpuset_write_u64()
2347 retval = update_flag(CS_MEMORY_MIGRATE, cs, val); in cpuset_write_u64()
2353 retval = update_flag(CS_SPREAD_PAGE, cs, val); in cpuset_write_u64()
2356 retval = update_flag(CS_SPREAD_SLAB, cs, val); in cpuset_write_u64()
2371 struct cpuset *cs = css_cs(css); in cpuset_write_s64() local
2377 if (!is_cpuset_online(cs)) in cpuset_write_s64()
2382 retval = update_relax_domain_level(cs, val); in cpuset_write_s64()
2400 struct cpuset *cs = css_cs(of_css(of)); in cpuset_write_resmask() local
2407 * CPU or memory hotunplug may leave @cs w/o any execution in cpuset_write_resmask()
2412 * As writes to "cpus" or "mems" may restore @cs's execution in cpuset_write_resmask()
2421 * protection is okay as we check whether @cs is online after in cpuset_write_resmask()
2425 css_get(&cs->css); in cpuset_write_resmask()
2431 if (!is_cpuset_online(cs)) in cpuset_write_resmask()
2434 trialcs = alloc_trial_cpuset(cs); in cpuset_write_resmask()
2442 retval = update_cpumask(cs, trialcs, buf); in cpuset_write_resmask()
2445 retval = update_nodemask(cs, trialcs, buf); in cpuset_write_resmask()
2457 css_put(&cs->css); in cpuset_write_resmask()
2472 struct cpuset *cs = css_cs(seq_css(sf)); in cpuset_common_seq_show() local
2480 seq_printf(sf, "%*pbl\n", cpumask_pr_args(cs->cpus_allowed)); in cpuset_common_seq_show()
2483 seq_printf(sf, "%*pbl\n", nodemask_pr_args(&cs->mems_allowed)); in cpuset_common_seq_show()
2486 seq_printf(sf, "%*pbl\n", cpumask_pr_args(cs->effective_cpus)); in cpuset_common_seq_show()
2489 seq_printf(sf, "%*pbl\n", nodemask_pr_args(&cs->effective_mems)); in cpuset_common_seq_show()
2492 seq_printf(sf, "%*pbl\n", cpumask_pr_args(cs->subparts_cpus)); in cpuset_common_seq_show()
2504 struct cpuset *cs = css_cs(css); in cpuset_read_u64() local
2508 return is_cpu_exclusive(cs); in cpuset_read_u64()
2510 return is_mem_exclusive(cs); in cpuset_read_u64()
2512 return is_mem_hardwall(cs); in cpuset_read_u64()
2514 return is_sched_load_balance(cs); in cpuset_read_u64()
2516 return is_memory_migrate(cs); in cpuset_read_u64()
2520 return fmeter_getrate(&cs->fmeter); in cpuset_read_u64()
2522 return is_spread_page(cs); in cpuset_read_u64()
2524 return is_spread_slab(cs); in cpuset_read_u64()
2535 struct cpuset *cs = css_cs(css); in cpuset_read_s64() local
2539 return cs->relax_domain_level; in cpuset_read_s64()
2550 struct cpuset *cs = css_cs(seq_css(seq)); in sched_partition_show() local
2552 switch (cs->partition_root_state) { in sched_partition_show()
2569 struct cpuset *cs = css_cs(of_css(of)); in sched_partition_write() local
2585 css_get(&cs->css); in sched_partition_write()
2588 if (!is_cpuset_online(cs)) in sched_partition_write()
2591 retval = update_prstate(cs, val); in sched_partition_write()
2595 css_put(&cs->css); in sched_partition_write()
2768 struct cpuset *cs; in cpuset_css_alloc() local
2773 cs = kzalloc(sizeof(*cs), GFP_KERNEL); in cpuset_css_alloc()
2774 if (!cs) in cpuset_css_alloc()
2777 if (alloc_cpumasks(cs, NULL)) { in cpuset_css_alloc()
2778 kfree(cs); in cpuset_css_alloc()
2782 __set_bit(CS_SCHED_LOAD_BALANCE, &cs->flags); in cpuset_css_alloc()
2783 nodes_clear(cs->mems_allowed); in cpuset_css_alloc()
2784 nodes_clear(cs->effective_mems); in cpuset_css_alloc()
2785 fmeter_init(&cs->fmeter); in cpuset_css_alloc()
2786 cs->relax_domain_level = -1; in cpuset_css_alloc()
2790 __set_bit(CS_MEMORY_MIGRATE, &cs->flags); in cpuset_css_alloc()
2792 return &cs->css; in cpuset_css_alloc()
2797 struct cpuset *cs = css_cs(css); in cpuset_css_online() local
2798 struct cpuset *parent = parent_cs(cs); in cpuset_css_online()
2808 set_bit(CS_ONLINE, &cs->flags); in cpuset_css_online()
2810 set_bit(CS_SPREAD_PAGE, &cs->flags); in cpuset_css_online()
2812 set_bit(CS_SPREAD_SLAB, &cs->flags); in cpuset_css_online()
2818 cpumask_copy(cs->effective_cpus, parent->effective_cpus); in cpuset_css_online()
2819 cs->effective_mems = parent->effective_mems; in cpuset_css_online()
2820 cs->use_parent_ecpus = true; in cpuset_css_online()
2851 cs->mems_allowed = parent->mems_allowed; in cpuset_css_online()
2852 cs->effective_mems = parent->mems_allowed; in cpuset_css_online()
2853 cpumask_copy(cs->cpus_allowed, parent->cpus_allowed); in cpuset_css_online()
2854 cpumask_copy(cs->effective_cpus, parent->cpus_allowed); in cpuset_css_online()
2875 struct cpuset *cs = css_cs(css); in cpuset_css_offline() local
2880 if (is_partition_root(cs)) in cpuset_css_offline()
2881 update_prstate(cs, 0); in cpuset_css_offline()
2884 is_sched_load_balance(cs)) in cpuset_css_offline()
2885 update_flag(CS_SCHED_LOAD_BALANCE, cs, 0); in cpuset_css_offline()
2887 if (cs->use_parent_ecpus) { in cpuset_css_offline()
2888 struct cpuset *parent = parent_cs(cs); in cpuset_css_offline()
2890 cs->use_parent_ecpus = false; in cpuset_css_offline()
2895 clear_bit(CS_ONLINE, &cs->flags); in cpuset_css_offline()
2903 struct cpuset *cs = css_cs(css); in cpuset_css_free() local
2905 free_cpuset(cs); in cpuset_css_free()
2992 static void remove_tasks_in_empty_cpuset(struct cpuset *cs) in remove_tasks_in_empty_cpuset() argument
3000 parent = parent_cs(cs); in remove_tasks_in_empty_cpuset()
3005 if (cgroup_transfer_tasks(parent->css.cgroup, cs->css.cgroup)) { in remove_tasks_in_empty_cpuset()
3007 pr_cont_cgroup_name(cs->css.cgroup); in remove_tasks_in_empty_cpuset()
3013 hotplug_update_tasks_legacy(struct cpuset *cs, in hotplug_update_tasks_legacy() argument
3020 cpumask_copy(cs->cpus_allowed, new_cpus); in hotplug_update_tasks_legacy()
3021 cpumask_copy(cs->effective_cpus, new_cpus); in hotplug_update_tasks_legacy()
3022 cs->mems_allowed = *new_mems; in hotplug_update_tasks_legacy()
3023 cs->effective_mems = *new_mems; in hotplug_update_tasks_legacy()
3030 if (cpus_updated && !cpumask_empty(cs->cpus_allowed)) in hotplug_update_tasks_legacy()
3031 update_tasks_cpumask(cs); in hotplug_update_tasks_legacy()
3032 if (mems_updated && !nodes_empty(cs->mems_allowed)) in hotplug_update_tasks_legacy()
3033 update_tasks_nodemask(cs); in hotplug_update_tasks_legacy()
3035 is_empty = cpumask_empty(cs->cpus_allowed) || in hotplug_update_tasks_legacy()
3036 nodes_empty(cs->mems_allowed); in hotplug_update_tasks_legacy()
3046 remove_tasks_in_empty_cpuset(cs); in hotplug_update_tasks_legacy()
3052 hotplug_update_tasks(struct cpuset *cs, in hotplug_update_tasks() argument
3057 cpumask_copy(new_cpus, parent_cs(cs)->effective_cpus); in hotplug_update_tasks()
3059 *new_mems = parent_cs(cs)->effective_mems; in hotplug_update_tasks()
3062 cpumask_copy(cs->effective_cpus, new_cpus); in hotplug_update_tasks()
3063 cs->effective_mems = *new_mems; in hotplug_update_tasks()
3067 update_tasks_cpumask(cs); in hotplug_update_tasks()
3069 update_tasks_nodemask(cs); in hotplug_update_tasks()
3081 * @cs: cpuset in interest
3084 * Compare @cs's cpu and mem masks against top_cpuset and if some have gone
3085 * offline, update @cs accordingly. If @cs ends up with no CPU or memory,
3088 static void cpuset_hotplug_update_tasks(struct cpuset *cs, struct tmpmasks *tmp) in cpuset_hotplug_update_tasks() argument
3096 wait_event(cpuset_attach_wq, cs->attach_in_progress == 0); in cpuset_hotplug_update_tasks()
3104 if (cs->attach_in_progress) { in cpuset_hotplug_update_tasks()
3109 parent = parent_cs(cs); in cpuset_hotplug_update_tasks()
3110 compute_effective_cpumask(&new_cpus, cs, parent); in cpuset_hotplug_update_tasks()
3111 nodes_and(new_mems, cs->mems_allowed, parent->effective_mems); in cpuset_hotplug_update_tasks()
3113 if (cs->nr_subparts_cpus) in cpuset_hotplug_update_tasks()
3118 cpumask_andnot(&new_cpus, &new_cpus, cs->subparts_cpus); in cpuset_hotplug_update_tasks()
3120 if (!tmp || !cs->partition_root_state) in cpuset_hotplug_update_tasks()
3128 if (is_partition_root(cs) && (cpumask_empty(&new_cpus) || in cpuset_hotplug_update_tasks()
3130 if (cs->nr_subparts_cpus) { in cpuset_hotplug_update_tasks()
3132 cs->nr_subparts_cpus = 0; in cpuset_hotplug_update_tasks()
3133 cpumask_clear(cs->subparts_cpus); in cpuset_hotplug_update_tasks()
3135 compute_effective_cpumask(&new_cpus, cs, parent); in cpuset_hotplug_update_tasks()
3148 update_parent_subparts_cpumask(cs, partcmd_disable, in cpuset_hotplug_update_tasks()
3150 old_prs = cs->partition_root_state; in cpuset_hotplug_update_tasks()
3153 cs->partition_root_state = PRS_ERROR; in cpuset_hotplug_update_tasks()
3155 notify_partition_change(cs, old_prs, PRS_ERROR); in cpuset_hotplug_update_tasks()
3167 ((cs->partition_root_state == PRS_ERROR) || in cpuset_hotplug_update_tasks()
3169 update_parent_subparts_cpumask(cs, partcmd_update, NULL, tmp)) in cpuset_hotplug_update_tasks()
3173 cpus_updated = !cpumask_equal(&new_cpus, cs->effective_cpus); in cpuset_hotplug_update_tasks()
3174 mems_updated = !nodes_equal(new_mems, cs->effective_mems); in cpuset_hotplug_update_tasks()
3177 hotplug_update_tasks(cs, &new_cpus, &new_mems, in cpuset_hotplug_update_tasks()
3180 hotplug_update_tasks_legacy(cs, &new_cpus, &new_mems, in cpuset_hotplug_update_tasks()
3274 struct cpuset *cs; in cpuset_hotplug_workfn() local
3278 cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) { in cpuset_hotplug_workfn()
3279 if (cs == &top_cpuset || !css_tryget_online(&cs->css)) in cpuset_hotplug_workfn()
3283 cpuset_hotplug_update_tasks(cs, ptmp); in cpuset_hotplug_workfn()
3286 css_put(&cs->css); in cpuset_hotplug_workfn()
3403 * But we used cs && cs->cpus_allowed lockless and thus can in cpuset_cpus_allowed_fallback()
3466 static struct cpuset *nearest_hardwall_ancestor(struct cpuset *cs) in nearest_hardwall_ancestor() argument
3468 while (!(is_mem_exclusive(cs) || is_mem_hardwall(cs)) && parent_cs(cs)) in nearest_hardwall_ancestor()
3469 cs = parent_cs(cs); in nearest_hardwall_ancestor()
3470 return cs; in nearest_hardwall_ancestor()
3515 struct cpuset *cs; /* current cpuset ancestors */ in __cpuset_node_allowed() local
3539 cs = nearest_hardwall_ancestor(task_cs(current)); in __cpuset_node_allowed()
3540 allowed = node_isset(node, cs->mems_allowed); in __cpuset_node_allowed()