X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=kernel%2Fsched%2Fauto_group.h;h=8bd047142816dea81894bb27ccc3c78a38ac3d61;hb=9952ea5aee31bb082ca5f702507fb563ed23431f;hp=443232ebbb53b24ea369ca3c4fbb7b53c5e8cbef;hpb=da830e589a45f0c42eef6f3cbd07275f8893f181;p=firefly-linux-kernel-4.4.55.git

diff --git a/kernel/sched/auto_group.h b/kernel/sched/auto_group.h
index 443232ebbb53..8bd047142816 100644
--- a/kernel/sched/auto_group.h
+++ b/kernel/sched/auto_group.h
@@ -4,6 +4,11 @@
 #include <linux/rwsem.h>
 
 struct autogroup {
+	/*
+	 * reference doesn't mean how many thread attach to this
+	 * autogroup now. It just stands for the number of task
+	 * could use this autogroup.
+	 */
 	struct kref		kref;
 	struct task_group	*tg;
 	struct rw_semaphore	lock;