diff options
Diffstat (limited to 'include/linux/cgroup-defs.h')
| -rw-r--r-- | include/linux/cgroup-defs.h | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index f42563739d2e..de2cd6238c2a 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -254,6 +254,18 @@ struct cgroup_subsys_state { int nr_descendants; /* + * Hierarchical populated state. For cgroup->self, nr_populated_csets + * counts populated csets linked via cgrp_cset_link. + * nr_populated_children counts immediate-child csses whose own + * populated state is nonzero. Protected by css_set_lock. + */ + int nr_populated_csets; + int nr_populated_children; + + /* deferred kill_css_finish() queued by css_update_populated() */ + struct work_struct kill_finish_work; + + /* * A singly-linked list of css structures to be rstat flushed. * This is a scratch field to be used exclusively by * css_rstat_flush(). @@ -504,17 +516,12 @@ struct cgroup { int max_descendants; /* - * Each non-empty css_set associated with this cgroup contributes - * one to nr_populated_csets. The counter is zero iff this cgroup - * doesn't have any tasks. - * - * All children which have non-zero nr_populated_csets and/or - * nr_populated_children of their own contribute one to either - * nr_populated_domain_children or nr_populated_threaded_children - * depending on their type. Each counter is zero iff all cgroups - * of the type in the subtree proper don't have any tasks. + * Domain/threaded split of self.nr_populated_children: each counts + * immediate-child cgroups whose subtree is populated and sums to + * self.nr_populated_children. Kept as separate fields to allow readers + * like cgroup_can_be_thread_root() unlocked access. Protected by + * css_set_lock; updated by css_update_populated(). */ - int nr_populated_csets; int nr_populated_domain_children; int nr_populated_threaded_children; @@ -611,9 +618,6 @@ struct cgroup { /* used to wait for offlining of csses */ wait_queue_head_t offline_waitq; - /* used by cgroup_rmdir() to wait for dying tasks to leave */ - wait_queue_head_t dying_populated_waitq; - /* used to schedule release agent */ struct work_struct release_agent_work; |