From d775e04dd3ee9648ca91b1df965b435a34632606 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Thu, 2 Jan 2014 16:14:19 +0100
Subject: kern: reduce the size of struct task

* kern/task.h (struct task): Reduce the size of struct task by
2 * sizeof boolean_t by using a bit field for the boolean flags.
---
 kern/task.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'kern')

diff --git a/kern/task.h b/kern/task.h
index 9bfea57..e852033 100644
--- a/kern/task.h
+++ b/kern/task.h
@@ -52,7 +52,11 @@ struct task {
 	/* Synchronization/destruction information */
 	decl_simple_lock_data(,lock)	/* Task's lock */
 	int		ref_count;	/* Number of references to me */
-	boolean_t	active;		/* Task has not been terminated */
+
+	/* Flags */
+	unsigned int	active:1,	/* Task has not been terminated */
+	/* boolean_t */ may_assign:1,	/* can assigned pset be changed? */
+			assign_active:1;	/* waiting for may_assign */
 
 	/* Miscellaneous */
 	vm_map_t	map;		/* Address space description */
@@ -63,8 +67,6 @@ struct task {
 	queue_head_t	thread_list;	/* list of threads */
 	int		thread_count;	/* number of threads */
 	processor_set_t	processor_set;	/* processor set for new threads */
-	boolean_t	may_assign;	/* can assigned pset be changed? */
-	boolean_t	assign_active;	/* waiting for may_assign */
 
 	/* User-visible scheduling information */
 	int		user_stop_count;	/* outstanding stops */
-- 
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