kernel/cgroup/rstat.c

17 	return per_cpu_ptr(cgrp->rstat_cpu, cpu);
21  * cgroup_rstat_updated - keep track of updated rstat_cpu
23  * @cpu: cpu on which rstat_cpu was updated
25  * @cgrp's rstat_cpu on @cpu was updated.  Put it on the parent's matching
26  * rstat_cpu->updated_children list.  See the comment on top of
135  * Walks the updated rstat_cpu tree on @cpu from @root.  During traversal,
311 	/* the root cgrp has rstat_cpu preallocated */
312 	if (!cgrp->rstat_cpu) {
313 		cgrp->rstat_cpu = alloc_percpu(struct cgroup_rstat_cpu);
314 		if (!cgrp->rstat_cpu)
344 	free_percpu(cgrp->rstat_cpu);
345 	cgrp->rstat_cpu = NULL;
426 	rstatc = get_cpu_ptr(cgrp->rstat_cpu);