Lines Matching full:cs
204 static inline struct cpuset *parent_cs(struct cpuset *cs) in parent_cs() argument
206 return css_cs(cs->css.parent); in parent_cs()
222 static inline bool is_cpuset_online(struct cpuset *cs) in is_cpuset_online() argument
224 return test_bit(CS_ONLINE, &cs->flags) && !css_is_dying(&cs->css); in is_cpuset_online()
227 static inline int is_cpu_exclusive(const struct cpuset *cs) in is_cpu_exclusive() argument
229 return test_bit(CS_CPU_EXCLUSIVE, &cs->flags); in is_cpu_exclusive()
232 static inline int is_mem_exclusive(const struct cpuset *cs) in is_mem_exclusive() argument
234 return test_bit(CS_MEM_EXCLUSIVE, &cs->flags); in is_mem_exclusive()
237 static inline int is_mem_hardwall(const struct cpuset *cs) in is_mem_hardwall() argument
239 return test_bit(CS_MEM_HARDWALL, &cs->flags); in is_mem_hardwall()
242 static inline int is_sched_load_balance(const struct cpuset *cs) in is_sched_load_balance() argument
244 return test_bit(CS_SCHED_LOAD_BALANCE, &cs->flags); in is_sched_load_balance()
247 static inline int is_memory_migrate(const struct cpuset *cs) in is_memory_migrate() argument
249 return test_bit(CS_MEMORY_MIGRATE, &cs->flags); in is_memory_migrate()
252 static inline int is_spread_page(const struct cpuset *cs) in is_spread_page() argument
254 return test_bit(CS_SPREAD_PAGE, &cs->flags); in is_spread_page()
257 static inline int is_spread_slab(const struct cpuset *cs) in is_spread_slab() argument
259 return test_bit(CS_SPREAD_SLAB, &cs->flags); in is_spread_slab()
262 static inline int is_partition_root(const struct cpuset *cs) in is_partition_root() argument
264 return cs->partition_root_state > 0; in is_partition_root()
385 static void guarantee_online_cpus(struct cpuset *cs, struct cpumask *pmask) in guarantee_online_cpus() argument
387 while (!cpumask_intersects(cs->effective_cpus, cpu_online_mask)) { in guarantee_online_cpus()
388 cs = parent_cs(cs); in guarantee_online_cpus()
389 if (unlikely(!cs)) { in guarantee_online_cpus()
401 cpumask_and(pmask, cs->effective_cpus, cpu_online_mask); in guarantee_online_cpus()
415 static void guarantee_online_mems(struct cpuset *cs, nodemask_t *pmask) in guarantee_online_mems() argument
417 while (!nodes_intersects(cs->effective_mems, node_states[N_MEMORY])) in guarantee_online_mems()
418 cs = parent_cs(cs); in guarantee_online_mems()
419 nodes_and(*pmask, cs->effective_mems, node_states[N_MEMORY]); in guarantee_online_mems()
427 static void cpuset_update_task_spread_flag(struct cpuset *cs, in cpuset_update_task_spread_flag() argument
430 if (is_spread_page(cs)) in cpuset_update_task_spread_flag()
435 if (is_spread_slab(cs)) in cpuset_update_task_spread_flag()
459 * @cs: the cpuset that have cpumasks to be allocated.
465 static inline int alloc_cpumasks(struct cpuset *cs, struct tmpmasks *tmp) in alloc_cpumasks() argument
469 if (cs) { in alloc_cpumasks()
470 pmask1 = &cs->cpus_allowed; in alloc_cpumasks()
471 pmask2 = &cs->effective_cpus; in alloc_cpumasks()
472 pmask3 = &cs->subparts_cpus; in alloc_cpumasks()
473 pmask4 = &cs->cpus_requested; in alloc_cpumasks()
489 if (cs && !zalloc_cpumask_var(pmask4, GFP_KERNEL)) in alloc_cpumasks()
505 * @cs: the cpuset that have cpumasks to be free.
508 static inline void free_cpumasks(struct cpuset *cs, struct tmpmasks *tmp) in free_cpumasks() argument
510 if (cs) { in free_cpumasks()
511 free_cpumask_var(cs->cpus_allowed); in free_cpumasks()
512 free_cpumask_var(cs->cpus_requested); in free_cpumasks()
513 free_cpumask_var(cs->effective_cpus); in free_cpumasks()
514 free_cpumask_var(cs->subparts_cpus); in free_cpumasks()
525 * @cs: the cpuset that the trial cpuset duplicates
527 static struct cpuset *alloc_trial_cpuset(struct cpuset *cs) in alloc_trial_cpuset() argument
531 trial = kmemdup(cs, sizeof(*cs), GFP_KERNEL); in alloc_trial_cpuset()
540 cpumask_copy(trial->cpus_allowed, cs->cpus_allowed); in alloc_trial_cpuset()
541 cpumask_copy(trial->cpus_requested, cs->cpus_requested); in alloc_trial_cpuset()
542 cpumask_copy(trial->effective_cpus, cs->effective_cpus); in alloc_trial_cpuset()
548 * @cs: the cpuset to be freed
550 static inline void free_cpuset(struct cpuset *cs) in free_cpuset() argument
552 free_cpumasks(cs, NULL); in free_cpuset()
553 kfree(cs); in free_cpuset()
924 static void update_tasks_root_domain(struct cpuset *cs) in update_tasks_root_domain() argument
929 css_task_iter_start(&cs->css, 0, &it); in update_tasks_root_domain()
939 struct cpuset *cs = NULL; in rebuild_root_domains() local
954 cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) { in rebuild_root_domains()
956 if (cpumask_empty(cs->effective_cpus)) { in rebuild_root_domains()
961 css_get(&cs->css); in rebuild_root_domains()
965 update_tasks_root_domain(cs); in rebuild_root_domains()
968 css_put(&cs->css); in rebuild_root_domains()
999 struct cpuset *cs; in rebuild_sched_domains_locked() local
1025 cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) { in rebuild_sched_domains_locked()
1026 if (!is_partition_root(cs)) { in rebuild_sched_domains_locked()
1030 if (!cpumask_subset(cs->effective_cpus, in rebuild_sched_domains_locked()
1062 * @cs: the cpuset in which each task's cpus_allowed mask needs to be changed
1064 * Iterate through each task of @cs updating its cpus_allowed to the
1068 static void update_tasks_cpumask(struct cpuset *cs) in update_tasks_cpumask() argument
1073 css_task_iter_start(&cs->css, 0, &it); in update_tasks_cpumask()
1075 set_cpus_allowed_ptr(task, cs->effective_cpus); in update_tasks_cpumask()
1082 * @cs: the cpuset the need to recompute the new effective_cpus mask
1091 struct cpuset *cs, struct cpuset *parent) in compute_effective_cpumask() argument
1096 cpumask_and(new_cpus, new_cpus, cs->cpus_requested); in compute_effective_cpumask()
1099 cpumask_and(new_cpus, cs->cpus_requested, in compute_effective_cpumask()
1325 * @cs: the cpuset to consider
1335 static void update_cpumasks_hier(struct cpuset *cs, struct tmpmasks *tmp) in update_cpumasks_hier() argument
1343 cpuset_for_each_descendant_pre(cp, pos_css, cs) { in update_cpumasks_hier()
1376 * for cs already in update_cpumask(). We should also call in update_cpumasks_hier()
1381 if ((cp != cs) && new_prs) { in update_cpumasks_hier()
1486 * @cs: Current cpuset
1489 static void update_sibling_cpumasks(struct cpuset *parent, struct cpuset *cs, in update_sibling_cpumasks() argument
1502 if (sibling == cs) in update_sibling_cpumasks()
1514 * @cs: the cpuset to consider
1518 static int update_cpumask(struct cpuset *cs, struct cpuset *trialcs, in update_cpumask() argument
1525 if (cs == &top_cpuset) in update_cpumask()
1549 if (cpumask_equal(cs->cpus_requested, trialcs->cpus_requested)) in update_cpumask()
1552 retval = validate_change(cs, trialcs); in update_cpumask()
1566 if (cs->partition_root_state) { in update_cpumask()
1570 if (update_parent_subparts_cpumask(cs, partcmd_update, in update_cpumask()
1576 cpumask_copy(cs->cpus_allowed, trialcs->cpus_allowed); in update_cpumask()
1577 cpumask_copy(cs->cpus_requested, trialcs->cpus_requested); in update_cpumask()
1582 if (cs->nr_subparts_cpus) { in update_cpumask()
1583 cpumask_and(cs->subparts_cpus, cs->subparts_cpus, cs->cpus_allowed); in update_cpumask()
1584 cs->nr_subparts_cpus = cpumask_weight(cs->subparts_cpus); in update_cpumask()
1588 update_cpumasks_hier(cs, &tmp); in update_cpumask()
1590 if (cs->partition_root_state) { in update_cpumask()
1591 struct cpuset *parent = parent_cs(cs); in update_cpumask()
1598 update_sibling_cpumasks(parent, cs, &tmp); in update_cpumask()
1683 * @cs: the cpuset in which each task's mems_allowed mask needs to be changed
1685 * Iterate through each task of @cs updating its mems_allowed to the
1689 static void update_tasks_nodemask(struct cpuset *cs) in update_tasks_nodemask() argument
1695 cpuset_being_rebound = cs; /* causes mpol_dup() rebind */ in update_tasks_nodemask()
1697 guarantee_online_mems(cs, &newmems); in update_tasks_nodemask()
1709 css_task_iter_start(&cs->css, 0, &it); in update_tasks_nodemask()
1720 migrate = is_memory_migrate(cs); in update_tasks_nodemask()
1722 mpol_rebind_mm(mm, &cs->mems_allowed); in update_tasks_nodemask()
1724 cpuset_migrate_mm(mm, &cs->old_mems_allowed, &newmems); in update_tasks_nodemask()
1732 * cs->old_mems_allowed. in update_tasks_nodemask()
1734 cs->old_mems_allowed = newmems; in update_tasks_nodemask()
1742 * @cs: the cpuset to consider
1752 static void update_nodemasks_hier(struct cpuset *cs, nodemask_t *new_mems) in update_nodemasks_hier() argument
1758 cpuset_for_each_descendant_pre(cp, pos_css, cs) { in update_nodemasks_hier()
1804 * Will take tasklist_lock, scan tasklist for tasks in cpuset cs,
1808 static int update_nodemask(struct cpuset *cs, struct cpuset *trialcs, in update_nodemask() argument
1817 if (cs == &top_cpuset) { in update_nodemask()
1842 if (nodes_equal(cs->mems_allowed, trialcs->mems_allowed)) { in update_nodemask()
1846 retval = validate_change(cs, trialcs); in update_nodemask()
1851 cs->mems_allowed = trialcs->mems_allowed; in update_nodemask()
1855 update_nodemasks_hier(cs, &trialcs->mems_allowed); in update_nodemask()
1871 static int update_relax_domain_level(struct cpuset *cs, s64 val) in update_relax_domain_level() argument
1878 if (val != cs->relax_domain_level) { in update_relax_domain_level()
1879 cs->relax_domain_level = val; in update_relax_domain_level()
1880 if (!cpumask_empty(cs->cpus_allowed) && in update_relax_domain_level()
1881 is_sched_load_balance(cs)) in update_relax_domain_level()
1890 * @cs: the cpuset in which each task's spread flags needs to be changed
1892 * Iterate through each task of @cs updating its spread flags. As this
1896 static void update_tasks_flags(struct cpuset *cs) in update_tasks_flags() argument
1901 css_task_iter_start(&cs->css, 0, &it); in update_tasks_flags()
1903 cpuset_update_task_spread_flag(cs, task); in update_tasks_flags()
1910 * cs: the cpuset to update
1916 static int update_flag(cpuset_flagbits_t bit, struct cpuset *cs, in update_flag() argument
1924 trialcs = alloc_trial_cpuset(cs); in update_flag()
1933 err = validate_change(cs, trialcs); in update_flag()
1937 balance_flag_changed = (is_sched_load_balance(cs) != in update_flag()
1940 spread_flag_changed = ((is_spread_slab(cs) != is_spread_slab(trialcs)) in update_flag()
1941 || (is_spread_page(cs) != is_spread_page(trialcs))); in update_flag()
1944 cs->flags = trialcs->flags; in update_flag()
1951 update_tasks_flags(cs); in update_flag()
1959 * cs: the cpuset to update
1964 static int update_prstate(struct cpuset *cs, int new_prs) in update_prstate() argument
1966 int err, old_prs = cs->partition_root_state; in update_prstate()
1967 struct cpuset *parent = parent_cs(cs); in update_prstate()
1990 if (cpumask_empty(cs->cpus_allowed)) in update_prstate()
1993 err = update_flag(CS_CPU_EXCLUSIVE, cs, 1); in update_prstate()
1997 err = update_parent_subparts_cpumask(cs, partcmd_enable, in update_prstate()
2000 update_flag(CS_CPU_EXCLUSIVE, cs, 0); in update_prstate()
2009 update_flag(CS_CPU_EXCLUSIVE, cs, 0); in update_prstate()
2014 err = update_parent_subparts_cpumask(cs, partcmd_disable, in update_prstate()
2020 update_flag(CS_CPU_EXCLUSIVE, cs, 0); in update_prstate()
2031 update_sibling_cpumasks(parent, cs, &tmpmask); in update_prstate()
2037 cs->partition_root_state = new_prs; in update_prstate()
2152 struct cpuset *cs; in cpuset_can_attach() local
2158 cs = css_cs(css); in cpuset_can_attach()
2165 (cpumask_empty(cs->cpus_allowed) || nodes_empty(cs->mems_allowed))) in cpuset_can_attach()
2169 ret = task_can_attach(task, cs->cpus_allowed); in cpuset_can_attach()
2181 cs->attach_in_progress++; in cpuset_can_attach()
2213 struct cpuset *cs; in cpuset_attach() local
2217 cs = css_cs(css); in cpuset_attach()
2222 if (cs == &top_cpuset) in cpuset_attach()
2225 guarantee_online_cpus(cs, cpus_attach); in cpuset_attach()
2227 guarantee_online_mems(cs, &cpuset_attach_nodemask_to); in cpuset_attach()
2237 cpuset_update_task_spread_flag(cs, task); in cpuset_attach()
2244 cpuset_attach_nodemask_to = cs->effective_mems; in cpuset_attach()
2259 if (is_memory_migrate(cs)) in cpuset_attach()
2267 cs->old_mems_allowed = cpuset_attach_nodemask_to; in cpuset_attach()
2269 cs->attach_in_progress--; in cpuset_attach()
2270 if (!cs->attach_in_progress) in cpuset_attach()
2300 struct cpuset *cs = css_cs(css); in cpuset_write_u64() local
2306 if (!is_cpuset_online(cs)) { in cpuset_write_u64()
2313 retval = update_flag(CS_CPU_EXCLUSIVE, cs, val); in cpuset_write_u64()
2316 retval = update_flag(CS_MEM_EXCLUSIVE, cs, val); in cpuset_write_u64()
2319 retval = update_flag(CS_MEM_HARDWALL, cs, val); in cpuset_write_u64()
2322 retval = update_flag(CS_SCHED_LOAD_BALANCE, cs, val); in cpuset_write_u64()
2325 retval = update_flag(CS_MEMORY_MIGRATE, cs, val); in cpuset_write_u64()
2331 retval = update_flag(CS_SPREAD_PAGE, cs, val); in cpuset_write_u64()
2334 retval = update_flag(CS_SPREAD_SLAB, cs, val); in cpuset_write_u64()
2349 struct cpuset *cs = css_cs(css); in cpuset_write_s64() local
2355 if (!is_cpuset_online(cs)) in cpuset_write_s64()
2360 retval = update_relax_domain_level(cs, val); in cpuset_write_s64()
2378 struct cpuset *cs = css_cs(of_css(of)); in cpuset_write_resmask() local
2385 * CPU or memory hotunplug may leave @cs w/o any execution in cpuset_write_resmask()
2390 * As writes to "cpus" or "mems" may restore @cs's execution in cpuset_write_resmask()
2399 * protection is okay as we check whether @cs is online after in cpuset_write_resmask()
2403 css_get(&cs->css); in cpuset_write_resmask()
2409 if (!is_cpuset_online(cs)) in cpuset_write_resmask()
2412 trialcs = alloc_trial_cpuset(cs); in cpuset_write_resmask()
2420 retval = update_cpumask(cs, trialcs, buf); in cpuset_write_resmask()
2423 retval = update_nodemask(cs, trialcs, buf); in cpuset_write_resmask()
2435 css_put(&cs->css); in cpuset_write_resmask()
2450 struct cpuset *cs = css_cs(seq_css(sf)); in cpuset_common_seq_show() local
2458 seq_printf(sf, "%*pbl\n", cpumask_pr_args(cs->cpus_requested)); in cpuset_common_seq_show()
2461 seq_printf(sf, "%*pbl\n", nodemask_pr_args(&cs->mems_allowed)); in cpuset_common_seq_show()
2464 seq_printf(sf, "%*pbl\n", cpumask_pr_args(cs->effective_cpus)); in cpuset_common_seq_show()
2467 seq_printf(sf, "%*pbl\n", nodemask_pr_args(&cs->effective_mems)); in cpuset_common_seq_show()
2470 seq_printf(sf, "%*pbl\n", cpumask_pr_args(cs->subparts_cpus)); in cpuset_common_seq_show()
2482 struct cpuset *cs = css_cs(css); in cpuset_read_u64() local
2486 return is_cpu_exclusive(cs); in cpuset_read_u64()
2488 return is_mem_exclusive(cs); in cpuset_read_u64()
2490 return is_mem_hardwall(cs); in cpuset_read_u64()
2492 return is_sched_load_balance(cs); in cpuset_read_u64()
2494 return is_memory_migrate(cs); in cpuset_read_u64()
2498 return fmeter_getrate(&cs->fmeter); in cpuset_read_u64()
2500 return is_spread_page(cs); in cpuset_read_u64()
2502 return is_spread_slab(cs); in cpuset_read_u64()
2513 struct cpuset *cs = css_cs(css); in cpuset_read_s64() local
2517 return cs->relax_domain_level; in cpuset_read_s64()
2528 struct cpuset *cs = css_cs(seq_css(seq)); in sched_partition_show() local
2530 switch (cs->partition_root_state) { in sched_partition_show()
2547 struct cpuset *cs = css_cs(of_css(of)); in sched_partition_write() local
2563 css_get(&cs->css); in sched_partition_write()
2566 if (!is_cpuset_online(cs)) in sched_partition_write()
2569 retval = update_prstate(cs, val); in sched_partition_write()
2573 css_put(&cs->css); in sched_partition_write()
2745 struct cpuset *cs; in cpuset_css_alloc() local
2750 cs = kzalloc(sizeof(*cs), GFP_KERNEL); in cpuset_css_alloc()
2751 if (!cs) in cpuset_css_alloc()
2754 if (alloc_cpumasks(cs, NULL)) { in cpuset_css_alloc()
2755 kfree(cs); in cpuset_css_alloc()
2759 set_bit(CS_SCHED_LOAD_BALANCE, &cs->flags); in cpuset_css_alloc()
2760 nodes_clear(cs->mems_allowed); in cpuset_css_alloc()
2761 nodes_clear(cs->effective_mems); in cpuset_css_alloc()
2762 fmeter_init(&cs->fmeter); in cpuset_css_alloc()
2763 cs->relax_domain_level = -1; in cpuset_css_alloc()
2765 return &cs->css; in cpuset_css_alloc()
2770 struct cpuset *cs = css_cs(css); in cpuset_css_online() local
2771 struct cpuset *parent = parent_cs(cs); in cpuset_css_online()
2781 set_bit(CS_ONLINE, &cs->flags); in cpuset_css_online()
2783 set_bit(CS_SPREAD_PAGE, &cs->flags); in cpuset_css_online()
2785 set_bit(CS_SPREAD_SLAB, &cs->flags); in cpuset_css_online()
2791 cpumask_copy(cs->effective_cpus, parent->effective_cpus); in cpuset_css_online()
2792 cs->effective_mems = parent->effective_mems; in cpuset_css_online()
2793 cs->use_parent_ecpus = true; in cpuset_css_online()
2824 cs->mems_allowed = parent->mems_allowed; in cpuset_css_online()
2825 cs->effective_mems = parent->mems_allowed; in cpuset_css_online()
2826 cpumask_copy(cs->cpus_allowed, parent->cpus_allowed); in cpuset_css_online()
2827 cpumask_copy(cs->cpus_requested, parent->cpus_requested); in cpuset_css_online()
2828 cpumask_copy(cs->effective_cpus, parent->cpus_allowed); in cpuset_css_online()
2849 struct cpuset *cs = css_cs(css); in cpuset_css_offline() local
2854 if (is_partition_root(cs)) in cpuset_css_offline()
2855 update_prstate(cs, 0); in cpuset_css_offline()
2858 is_sched_load_balance(cs)) in cpuset_css_offline()
2859 update_flag(CS_SCHED_LOAD_BALANCE, cs, 0); in cpuset_css_offline()
2861 if (cs->use_parent_ecpus) { in cpuset_css_offline()
2862 struct cpuset *parent = parent_cs(cs); in cpuset_css_offline()
2864 cs->use_parent_ecpus = false; in cpuset_css_offline()
2869 clear_bit(CS_ONLINE, &cs->flags); in cpuset_css_offline()
2877 struct cpuset *cs = css_cs(css); in cpuset_css_free() local
2879 free_cpuset(cs); in cpuset_css_free()
2968 static void remove_tasks_in_empty_cpuset(struct cpuset *cs) in remove_tasks_in_empty_cpuset() argument
2976 parent = parent_cs(cs); in remove_tasks_in_empty_cpuset()
2981 if (cgroup_transfer_tasks(parent->css.cgroup, cs->css.cgroup)) { in remove_tasks_in_empty_cpuset()
2983 pr_cont_cgroup_name(cs->css.cgroup); in remove_tasks_in_empty_cpuset()
2989 hotplug_update_tasks_legacy(struct cpuset *cs, in hotplug_update_tasks_legacy() argument
2996 cpumask_copy(cs->cpus_allowed, new_cpus); in hotplug_update_tasks_legacy()
2997 cpumask_copy(cs->effective_cpus, new_cpus); in hotplug_update_tasks_legacy()
2998 cs->mems_allowed = *new_mems; in hotplug_update_tasks_legacy()
2999 cs->effective_mems = *new_mems; in hotplug_update_tasks_legacy()
3006 if (cpus_updated && !cpumask_empty(cs->cpus_allowed)) in hotplug_update_tasks_legacy()
3007 update_tasks_cpumask(cs); in hotplug_update_tasks_legacy()
3008 if (mems_updated && !nodes_empty(cs->mems_allowed)) in hotplug_update_tasks_legacy()
3009 update_tasks_nodemask(cs); in hotplug_update_tasks_legacy()
3011 is_empty = cpumask_empty(cs->cpus_allowed) || in hotplug_update_tasks_legacy()
3012 nodes_empty(cs->mems_allowed); in hotplug_update_tasks_legacy()
3022 remove_tasks_in_empty_cpuset(cs); in hotplug_update_tasks_legacy()
3028 hotplug_update_tasks(struct cpuset *cs, in hotplug_update_tasks() argument
3033 cpumask_copy(new_cpus, parent_cs(cs)->effective_cpus); in hotplug_update_tasks()
3035 *new_mems = parent_cs(cs)->effective_mems; in hotplug_update_tasks()
3038 cpumask_copy(cs->effective_cpus, new_cpus); in hotplug_update_tasks()
3039 cs->effective_mems = *new_mems; in hotplug_update_tasks()
3043 update_tasks_cpumask(cs); in hotplug_update_tasks()
3045 update_tasks_nodemask(cs); in hotplug_update_tasks()
3057 * @cs: cpuset in interest
3060 * Compare @cs's cpu and mem masks against top_cpuset and if some have gone
3061 * offline, update @cs accordingly. If @cs ends up with no CPU or memory,
3064 static void cpuset_hotplug_update_tasks(struct cpuset *cs, struct tmpmasks *tmp) in cpuset_hotplug_update_tasks() argument
3072 wait_event(cpuset_attach_wq, cs->attach_in_progress == 0); in cpuset_hotplug_update_tasks()
3080 if (cs->attach_in_progress) { in cpuset_hotplug_update_tasks()
3085 parent = parent_cs(cs); in cpuset_hotplug_update_tasks()
3086 compute_effective_cpumask(&new_cpus, cs, parent); in cpuset_hotplug_update_tasks()
3087 nodes_and(new_mems, cs->mems_allowed, parent->effective_mems); in cpuset_hotplug_update_tasks()
3089 if (cs->nr_subparts_cpus) in cpuset_hotplug_update_tasks()
3094 cpumask_andnot(&new_cpus, &new_cpus, cs->subparts_cpus); in cpuset_hotplug_update_tasks()
3096 if (!tmp || !cs->partition_root_state) in cpuset_hotplug_update_tasks()
3104 if (is_partition_root(cs) && (cpumask_empty(&new_cpus) || in cpuset_hotplug_update_tasks()
3106 if (cs->nr_subparts_cpus) { in cpuset_hotplug_update_tasks()
3108 cs->nr_subparts_cpus = 0; in cpuset_hotplug_update_tasks()
3109 cpumask_clear(cs->subparts_cpus); in cpuset_hotplug_update_tasks()
3111 compute_effective_cpumask(&new_cpus, cs, parent); in cpuset_hotplug_update_tasks()
3122 update_parent_subparts_cpumask(cs, partcmd_disable, in cpuset_hotplug_update_tasks()
3125 cs->partition_root_state = PRS_ERROR; in cpuset_hotplug_update_tasks()
3137 ((cs->partition_root_state == PRS_ERROR) || in cpuset_hotplug_update_tasks()
3139 update_parent_subparts_cpumask(cs, partcmd_update, NULL, tmp)) in cpuset_hotplug_update_tasks()
3143 cpus_updated = !cpumask_equal(&new_cpus, cs->effective_cpus); in cpuset_hotplug_update_tasks()
3144 mems_updated = !nodes_equal(new_mems, cs->effective_mems); in cpuset_hotplug_update_tasks()
3147 hotplug_update_tasks(cs, &new_cpus, &new_mems, in cpuset_hotplug_update_tasks()
3150 hotplug_update_tasks_legacy(cs, &new_cpus, &new_mems, in cpuset_hotplug_update_tasks()
3244 struct cpuset *cs; in cpuset_hotplug_workfn() local
3248 cpuset_for_each_descendant_pre(cs, pos_css, &top_cpuset) { in cpuset_hotplug_workfn()
3249 if (cs == &top_cpuset || !css_tryget_online(&cs->css)) in cpuset_hotplug_workfn()
3253 cpuset_hotplug_update_tasks(cs, ptmp); in cpuset_hotplug_workfn()
3256 css_put(&cs->css); in cpuset_hotplug_workfn()
3366 * But we used cs && cs->cpus_allowed lockless and thus can in cpuset_cpus_allowed_fallback()
3428 static struct cpuset *nearest_hardwall_ancestor(struct cpuset *cs) in nearest_hardwall_ancestor() argument
3430 while (!(is_mem_exclusive(cs) || is_mem_hardwall(cs)) && parent_cs(cs)) in nearest_hardwall_ancestor()
3431 cs = parent_cs(cs); in nearest_hardwall_ancestor()
3432 return cs; in nearest_hardwall_ancestor()
3477 struct cpuset *cs; /* current cpuset ancestors */ in __cpuset_node_allowed() local
3501 cs = nearest_hardwall_ancestor(task_cs(current)); in __cpuset_node_allowed()
3502 allowed = node_isset(node, cs->mems_allowed); in __cpuset_node_allowed()