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-rw-r--r--include/linux/cgroup.h22
1 files changed, 14 insertions, 8 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index c833d6f2367..2357733a0a8 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -141,6 +141,17 @@ enum {
CGRP_WAIT_ON_RMDIR,
};
+struct cgroup_pidlist {
+ /* protects the other fields */
+ struct rw_semaphore mutex;
+ /* array of xids */
+ pid_t *list;
+ /* how many elements the above list has */
+ int length;
+ /* how many files are using the current array */
+ int use_count;
+};
+
struct cgroup {
unsigned long flags; /* "unsigned long" so bitops work */
@@ -179,14 +190,9 @@ struct cgroup {
*/
struct list_head release_list;
- /* pids_mutex protects the fields below */
- struct rw_semaphore pids_mutex;
- /* Array of process ids in the cgroup */
- pid_t *tasks_pids;
- /* How many files are using the current tasks_pids array */
- int pids_use_count;
- /* Length of the current tasks_pids array */
- int pids_length;
+ /* we will have two separate pidlists, one for pids (the tasks file)
+ * and one for tgids (the procs file). */
+ struct cgroup_pidlist tasks, procs;
/* For RCU-protected deletion */
struct rcu_head rcu_head;