kernel/cgroup/cpuset-internal.h

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
39 /* bits in struct cpuset flags field */
51 /* The various types of files and directories in a cpuset file system */
83 	 * The user-configured masks can only be changed by writing to
85 	 * parent masks.
87 	 * The effective masks is the real masks that apply to the tasks
88 	 * in the cpuset. They may be changed if the configured masks are
97 	 * The user-configured masks are always the same with effective masks.
100 	/* user-configured CPUs and Memory Nodes allow to tasks */
113 	 * to sub-partitions below & hence excluded from its effective_cpus.
139 	 * - top_cpuset.old_mems_allowed is initialized to mems_allowed.
140 	 * - A new cpuset's old_mems_allowed is initialized when some
142 	 * - old_mems_allowed is used in cpuset_migrate_mm() when we change
152 	 * zeroing cpus/mems_allowed between ->can_attach() and ->attach().
199 	return css_cs(cs->css.parent);  in parent_cs()
205 	return test_bit(CS_ONLINE, &cs->flags) && !css_is_dying(&cs->css);  in is_cpuset_online()
210 	return test_bit(CS_CPU_EXCLUSIVE, &cs->flags);  in is_cpu_exclusive()
215 	return test_bit(CS_MEM_EXCLUSIVE, &cs->flags);  in is_mem_exclusive()
220 	return test_bit(CS_MEM_HARDWALL, &cs->flags);  in is_mem_hardwall()
225 	return test_bit(CS_SCHED_LOAD_BALANCE, &cs->flags);  in is_sched_load_balance()
230 	return test_bit(CS_MEMORY_MIGRATE, &cs->flags);  in is_memory_migrate()
235 	return test_bit(CS_SPREAD_PAGE, &cs->flags);  in is_spread_page()
240 	return test_bit(CS_SPREAD_SLAB, &cs->flags);  in is_spread_slab()
244  * cpuset_for_each_child - traverse online children of a cpuset
253 	css_for_each_child((pos_css), &(parent_cs)->css)		\
257  * cpuset_for_each_descendant_pre - pre-order walk of a cpuset's descendants
264  * css_rightmost_descendant() to skip subtree.  @root_cs is included in the
268 	css_for_each_descendant_pre((pos_css), &(root_cs)->css)		\
282  * cpuset-v1.c