From 6a398d74566752f0904c05ea4690427c8cecf1b5 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Sat, 25 Jul 2015 02:26:36 +0200
Subject: vm/object: use a general lock to protect vm objects

* vm/vm_object.h (struct vm_object): Use a general lock, adapt macros.
---
 vm/vm_object.h | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/vm/vm_object.h b/vm/vm_object.h
index 3bfc67a..3c9055f 100644
--- a/vm/vm_object.h
+++ b/vm/vm_object.h
@@ -63,7 +63,7 @@ typedef struct ipc_port *	pager_request_t;
 
 struct vm_object {
 	queue_chain_t		memq;		/* Resident memory */
-	decl_simple_lock_data(,	Lock)		/* Synchronization */
+	struct lock		Lock;		/* Synchronization */
 #if	VM_OBJECT_DEBUG
 	thread_t		LockHolder;	/* Thread holding Lock */
 #endif	/* VM_OBJECT_DEBUG */
@@ -336,14 +336,15 @@ vm_object_t vm_object_copy_delayed(
  */
 
 #if	VM_OBJECT_DEBUG
+
 #define vm_object_lock_init(object) \
 MACRO_BEGIN \
-	simple_lock_init(&(object)->Lock); \
+	lock_init(&(object)->Lock, TRUE); \
 	(object)->LockHolder = 0; \
 MACRO_END
 #define vm_object_lock(object) \
 MACRO_BEGIN \
-	simple_lock(&(object)->Lock); \
+	lock_write(&(object)->Lock); \
 	(object)->LockHolder = current_thread(); \
 MACRO_END
 #define vm_object_unlock(object) \
@@ -351,10 +352,10 @@ MACRO_BEGIN \
 	if ((object)->LockHolder != current_thread()) \
 	    panic("vm_object_unlock 0x%x", (object)); \
 	(object)->LockHolder = 0; \
-	simple_unlock(&(object)->Lock); \
+	lock_done(&(object)->Lock); \
 MACRO_END
 #define vm_object_lock_try(object) \
-	(simple_lock_try(&(object)->Lock) \
+	(lock_try_write(&(object)->Lock) \
 	    ? ( ((object)->LockHolder = current_thread()) , TRUE) \
 	    : FALSE)
 #define vm_object_sleep(event, object, interruptible) \
@@ -362,20 +363,20 @@ MACRO_BEGIN \
 	if ((object)->LockHolder != current_thread()) \
 	    panic("vm_object_sleep %#x", (object)); \
 	(object)->LockHolder = 0; \
-	thread_sleep((event_t)(event), simple_lock_addr((object)->Lock), \
+	thread_sleep_lock((event_t)(event), &(object)->Lock, \
 		(interruptible)); \
 MACRO_END
 #define	vm_object_lock_taken(object)	\
 		((object)->LockHolder == current_thread())
 #else	/* VM_OBJECT_DEBUG */
-#define vm_object_lock_init(object)	simple_lock_init(&(object)->Lock)
-#define vm_object_lock(object)		simple_lock(&(object)->Lock)
-#define vm_object_unlock(object)	simple_unlock(&(object)->Lock)
-#define vm_object_lock_try(object)	simple_lock_try(&(object)->Lock)
+#define vm_object_lock_init(object)	lock_init(&(object)->Lock, TRUE)
+#define vm_object_lock(object)		lock_write(&(object)->Lock)
+#define vm_object_unlock(object)	lock_done(&(object)->Lock)
+#define vm_object_lock_try(object)	lock_try_write(&(object)->Lock)
 #define vm_object_sleep(event, object, interruptible)			\
-		thread_sleep((event_t)(event), simple_lock_addr((object)->Lock), \
+		thread_sleep_lock((event_t)(event), &(object)->Lock, \
 			     (interruptible))
-#define	vm_object_lock_taken(object)	simple_lock_taken(&(object)->Lock)
+#define	vm_object_lock_taken(object)	lock_taken(&(object)->Lock)
 #endif	/* VM_OBJECT_DEBUG */
 
 /*
-- 
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