linux-kernel - [PATCH RFC v2 06/12] Add anonymous struct to sched_rt

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Message-Id: <1460961854-3449-7-git-send-email-bill.huey@gmail.com>
Date:	Sun, 17 Apr 2016 23:44:08 -0700
From:	"Bill Huey (hui)" <bill.huey@...il.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Steven Rostedt <rostedt@...dmis.org>,
	Alessandro Zummo <a.zummo@...ertech.it>,
	linux-kernel@...r.kernel.org
Cc:	luca abeni <luca.abeni@...tn.it>, Juri Lelli <juri.lelli@....com>,
	Mike Galbraith <umgwanakikbuti@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH RFC v2 06/12] Add anonymous struct to sched_rt_entity

Add an anonymous struct to support admittance using a red-black tree,
overrun tracking, state for whether or not to yield or block, debugging
support, execution slot pattern for the scheduler.

Signed-off-by: Bill Huey (hui) <bill.huey@...il.com>
---
 include/linux/sched.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 52c4847..23c3173 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1307,6 +1307,21 @@ struct sched_rt_entity {
 	/* rq "owned" by this entity/group: */
 	struct rt_rq		*my_q;
 #endif
+#ifdef CONFIG_RTC_CYCLIC
+	struct {
+		struct rb_node node; /* admittance structure */
+		struct list_head task_list;
+		unsigned long count; /* overrun count per slot */
+		int type, color, yield;
+		u64 slots;
+
+		/* debug */
+		unsigned long last_task_state;
+
+		/* instrumentation  */
+		unsigned int machine_state, last_machine_state;
+	} rt_overrun;
+#endif
 };
 
 struct sched_dl_entity {
-- 
2.5.0